/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2008 - 2017 Red Hat, Inc.
 */

#include "src/core/nm-default-daemon.h"

#include "nms-ifcfg-rh-reader.h"

#include <stdlib.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/wait.h>
#include <sys/inotify.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <linux/rtnetlink.h>
#include <linux/if_ether.h>

#include "libnm-glib-aux/nm-uuid.h"
#include "libnm-glib-aux/nm-secret-utils.h"
#include "nm-connection.h"
#include "nm-dbus-interface.h"
#include "nm-setting-connection.h"
#include "nm-setting-ip4-config.h"
#include "nm-setting-vlan.h"
#include "nm-setting-ip6-config.h"
#include "nm-setting-wired.h"
#include "nm-setting-wireless.h"
#include "nm-setting-ethtool.h"
#include "nm-setting-8021x.h"
#include "nm-setting-bond.h"
#include "nm-setting-bond-port.h"
#include "nm-setting-team.h"
#include "nm-setting-team-port.h"
#include "nm-setting-bridge.h"
#include "nm-setting-bridge-port.h"
#include "nm-setting-dcb.h"
#include "nm-setting-user.h"
#include "nm-setting-proxy.h"
#include "nm-setting-generic.h"
#include "libnm-core-intern/nm-core-internal.h"
#include "nm-utils.h"
#include "libnm-base/nm-ethtool-base.h"

#include "libnm-platform/nm-platform.h"
#include "NetworkManagerUtils.h"

#include "nms-ifcfg-rh-common.h"
#include "nms-ifcfg-rh-utils.h"
#include "shvar.h"

/*****************************************************************************/

#define _NMLOG_DOMAIN      LOGD_SETTINGS
#define _NMLOG_PREFIX_NAME "ifcfg-rh"
#define _NMLOG(level, ...)                                                 \
    G_STMT_START                                                           \
    {                                                                      \
        nm_log((level),                                                    \
               (_NMLOG_DOMAIN),                                            \
               NULL,                                                       \
               NULL,                                                       \
               "%s" _NM_UTILS_MACRO_FIRST(__VA_ARGS__),                    \
               _NMLOG_PREFIX_NAME ": " _NM_UTILS_MACRO_REST(__VA_ARGS__)); \
    }                                                                      \
    G_STMT_END

#define PARSE_WARNING(...) \
    _LOGW("%s" _NM_UTILS_MACRO_FIRST(__VA_ARGS__), "    " _NM_UTILS_MACRO_REST(__VA_ARGS__))

/*****************************************************************************/

static char *
get_full_file_path(const char *ifcfg_path, const char *file_path)
{
    const char   *base    = file_path;
    gs_free char *dirname = NULL;
    char         *p;

    g_return_val_if_fail(ifcfg_path != NULL, NULL);
    g_return_val_if_fail(file_path != NULL, NULL);

    if (file_path[0] == '/')
        return g_strdup(file_path);

    p = strrchr(file_path, '/');
    if (p)
        base = p + 1;

    dirname = g_path_get_dirname(ifcfg_path);
    return g_build_path("/", dirname, base, NULL);
}

/*****************************************************************************/

static NMSettingSecretFlags
_secret_read_ifcfg_flags(shvarFile *ifcfg, const char *flags_key)
{
    NMSettingSecretFlags flags    = NM_SETTING_SECRET_FLAG_NONE;
    gs_free char        *val_free = NULL;
    const char          *val;

    nm_assert(flags_key);
    nm_assert(g_str_has_suffix(flags_key, "_FLAGS"));

    val = svGetValueStr(ifcfg, flags_key, &val_free);
    if (val) {
        if (strstr(val, SECRET_FLAG_AGENT))
            flags |= NM_SETTING_SECRET_FLAG_AGENT_OWNED;
        if (strstr(val, SECRET_FLAG_NOT_SAVED))
            flags |= NM_SETTING_SECRET_FLAG_NOT_SAVED;
        if (strstr(val, SECRET_FLAG_NOT_REQUIRED))
            flags |= NM_SETTING_SECRET_FLAG_NOT_REQUIRED;
    }
    return flags;
}

static void
_secret_read_ifcfg(shvarFile            *ifcfg,
                   shvarFile            *keys_ifcfg,
                   const char           *name,
                   char                **value,
                   NMSettingSecretFlags *flags)
{
    char flags_key[250];

    nm_sprintf_buf(flags_key, "%s_FLAGS", name);

    *flags = _secret_read_ifcfg_flags(ifcfg, flags_key);

    if (*flags != NM_SETTING_SECRET_FLAG_NONE)
        *value = NULL;
    else {
        *value = svGetValue_cp(ifcfg, name);
        if (!*value && keys_ifcfg)
            *value = svGetValue_cp(keys_ifcfg, name);
    }
}

static void
_secret_set_from_ifcfg(gpointer    setting,
                       shvarFile  *ifcfg,
                       shvarFile  *keys_ifcfg,
                       const char *ifcfg_key,
                       const char *property_name)
{
    nm_auto_free_secret char *secret = NULL;
    NMSettingSecretFlags      flags;
    char                      flags_key[250];

    nm_assert(NM_IS_SETTING(setting));

    _secret_read_ifcfg(ifcfg, keys_ifcfg, ifcfg_key, &secret, &flags);

    g_object_set(setting,
                 property_name,
                 secret,
                 nm_sprintf_buf(flags_key, "%s-flags", property_name),
                 flags,
                 NULL);
}

static gboolean
_secret_password_raw_to_bytes(const char *ifcfg_key,
                              const char *password_raw,
                              GBytes    **out_bytes,
                              GError    **error)
{
    nm_auto_free_secret_buf NMSecretBuf *secret = NULL;
    gsize                                len;

    if (!password_raw) {
        NM_SET_OUT(out_bytes, NULL);
        return TRUE;
    }

    if (password_raw[0] == '0' && password_raw[1] == 'x')
        password_raw += 2;

    secret = nm_secret_buf_new(strlen(password_raw) / 2 + 3);
    if (!nm_utils_hexstr2bin_full(password_raw,
                                  FALSE,
                                  FALSE,
                                  FALSE,
                                  ":",
                                  0,
                                  secret->bin,
                                  secret->len,
                                  &len)) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Invalid hex password in %s",
                    ifcfg_key);
        return FALSE;
    }

    NM_SET_OUT(out_bytes, nm_secret_buf_to_gbytes_take(g_steal_pointer(&secret), len));
    return TRUE;
}

/*****************************************************************************/

static GBytes *
_cert_get_cert_bytes(const char *ifcfg_path, const char *value, GError **error)
{
    gs_free char *path = NULL;

    if (NM_STR_HAS_PREFIX(value, "pkcs11:"))
        return _nm_setting_802_1x_cert_value_to_bytes(NM_SETTING_802_1X_CK_SCHEME_PKCS11,
                                                      (guint8 *) value,
                                                      -1,
                                                      error);

    path = get_full_file_path(ifcfg_path, value);
    return _nm_setting_802_1x_cert_value_to_bytes(NM_SETTING_802_1X_CK_SCHEME_PATH,
                                                  (guint8 *) path,
                                                  -1,
                                                  error);
}

static gboolean
_cert_get_cert(shvarFile              *ifcfg,
               const char             *ifcfg_key,
               GBytes                **out_cert,
               NMSetting8021xCKScheme *out_scheme,
               GError                **error)
{
    nm_auto_free_secret char *val_free = NULL;
    const char               *val;
    gs_unref_bytes GBytes    *cert  = NULL;
    GError                   *local = NULL;
    NMSetting8021xCKScheme    scheme;

    val = svGetValueStr(ifcfg, ifcfg_key, &val_free);
    if (!val) {
        NM_SET_OUT(out_cert, NULL);
        NM_SET_OUT(out_scheme, NM_SETTING_802_1X_CK_SCHEME_UNKNOWN);
        return TRUE;
    }

    cert = _cert_get_cert_bytes(svFileGetName(ifcfg), val, &local);
    if (!cert)
        goto err;

    scheme = _nm_setting_802_1x_cert_get_scheme(cert, &local);
    if (scheme == NM_SETTING_802_1X_CK_SCHEME_UNKNOWN)
        goto err;

    NM_SET_OUT(out_cert, g_steal_pointer(&cert));
    NM_SET_OUT(out_scheme, scheme);
    return TRUE;

err:
    g_set_error(error,
                NM_SETTINGS_ERROR,
                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                "invalid certificate %s: %s",
                ifcfg_key,
                local->message);
    g_error_free(local);
    return FALSE;
}

static gboolean
_cert_set_from_ifcfg(gpointer    setting,
                     shvarFile  *ifcfg,
                     const char *ifcfg_key,
                     const char *property_name,
                     GBytes    **out_cert,
                     GError    **error)
{
    gs_unref_bytes GBytes *cert = NULL;

    if (!_cert_get_cert(ifcfg, ifcfg_key, &cert, NULL, error))
        return FALSE;

    g_object_set(setting, property_name, cert, NULL);

    NM_SET_OUT(out_cert, g_steal_pointer(&cert));
    return TRUE;
}

/*****************************************************************************/

static void
check_if_bond_port(shvarFile *ifcfg, NMSettingConnection *s_con)
{
    gs_free char *value = NULL;
    const char   *v;
    const char   *controller;

    v = svGetValueStr(ifcfg, "MASTER_UUID", &value);
    if (!v)
        v = svGetValueStr(ifcfg, "MASTER", &value);

    if (v) {
        controller = nm_setting_connection_get_controller(s_con);
        if (controller) {
            PARSE_WARNING("Already configured as port of %s. Ignoring MASTER{_UUID}=\"%s\"",
                          controller,
                          v);
            return;
        }

        g_object_set(s_con,
                     NM_SETTING_CONNECTION_CONTROLLER,
                     v,
                     NM_SETTING_CONNECTION_SLAVE_TYPE,
                     NM_SETTING_BOND_SETTING_NAME,
                     NULL);
    }

    /* We should be checking for SLAVE=yes as well, but NM used to not set that,
     * so for backward-compatibility, we don't check.
     */
}

static void
check_if_team_port(shvarFile *ifcfg, NMSettingConnection *s_con)
{
    gs_free char *value = NULL;
    const char   *v;
    const char   *controller;

    v = svGetValueStr(ifcfg, "TEAM_MASTER_UUID", &value);
    if (!v)
        v = svGetValueStr(ifcfg, "TEAM_MASTER", &value);
    if (!v)
        return;

    controller = nm_setting_connection_get_controller(s_con);
    if (controller) {
        PARSE_WARNING("Already configured as port of %s. Ignoring TEAM_MASTER{_UUID}=\"%s\"",
                      controller,
                      v);
        return;
    }

    g_object_set(s_con,
                 NM_SETTING_CONNECTION_CONTROLLER,
                 v,
                 NM_SETTING_CONNECTION_SLAVE_TYPE,
                 NM_SETTING_TEAM_SETTING_NAME,
                 NULL);
}

static char *
make_connection_name(shvarFile  *ifcfg,
                     const char *ifcfg_name,
                     const char *suggested,
                     const char *prefix)
{
    char *full_name = NULL, *name;

    /* If the ifcfg file already has a NAME, always use that */
    name = svGetValueStr_cp(ifcfg, "NAME");
    if (name)
        return name;

    /* Otherwise, construct a new NAME */
    if (!prefix)
        prefix = "System";

    /* For cosmetic reasons, if the suggested name is the same as
     * the ifcfg files name, don't use it.  Mainly for wifi so that
     * the SSID is shown in the connection ID instead of just "wlan0".
     */
    if (suggested && strcmp(ifcfg_name, suggested))
        full_name = g_strdup_printf("%s %s (%s)", prefix, suggested, ifcfg_name);
    else
        full_name = g_strdup_printf("%s %s", prefix, ifcfg_name);

    return full_name;
}

static NMSetting *
make_connection_setting(const char *file,
                        shvarFile  *ifcfg,
                        const char *type,
                        const char *suggested,
                        const char *prefix)
{
    NMSettingConnection    *s_con;
    NMSettingConnectionLldp lldp;
    const char             *ifcfg_name = NULL;
    gs_free char           *new_id     = NULL;
    const char             *uuid;
    gs_free char           *uuid_free = NULL;
    gs_free char           *value     = NULL;
    const char             *v;
    gs_free char           *stable_id = NULL;
    const char *const      *iter;
    gint32                  vint32;
    gint64                  vint64;
    int                     i_val;

    ifcfg_name = utils_get_ifcfg_name(file, TRUE);
    if (!ifcfg_name)
        return NULL;

    s_con = NM_SETTING_CONNECTION(nm_setting_connection_new());

    new_id = make_connection_name(ifcfg, ifcfg_name, suggested, prefix);
    g_object_set(s_con, NM_SETTING_CONNECTION_ID, new_id, NULL);

    /* Try for a UUID key before falling back to hashing the file name */
    uuid = svGetValueStr(ifcfg, "UUID", &uuid_free);
    if (!uuid) {
        uuid_free =
            nm_uuid_generate_from_string_str(svFileGetName(ifcfg), -1, NM_UUID_TYPE_LEGACY, NULL);
        uuid = uuid_free;
    }

    g_object_set(s_con,
                 NM_SETTING_CONNECTION_TYPE,
                 type,
                 NM_SETTING_CONNECTION_UUID,
                 uuid,
                 NM_SETTING_CONNECTION_STABLE_ID,
                 svGetValue(ifcfg, "STABLE_ID", &stable_id),
                 NULL);

    v = svGetValueStr(ifcfg, "DEVICE", &value);
    if (v) {
        GError *error = NULL;

        /* Only validate for NMU_IFACE_KERNEL, because ifcfg plugin anyway
         * doesn't support OVS types. */
        if (nm_utils_ifname_valid(v, NMU_IFACE_KERNEL, &error)) {
            g_object_set(s_con, NM_SETTING_CONNECTION_INTERFACE_NAME, v, NULL);
        } else {
            PARSE_WARNING("invalid DEVICE name '%s': %s", v, error->message);
            g_error_free(error);
        }
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "LLDP", &value);
    if (nm_streq0(v, "rx"))
        lldp = NM_SETTING_CONNECTION_LLDP_ENABLE_RX;
    else
        lldp = svParseBoolean(v, NM_SETTING_CONNECTION_LLDP_DEFAULT);

    /* Missing ONBOOT is treated as "ONBOOT=true" by the old network service */
    g_object_set(s_con,
                 NM_SETTING_CONNECTION_AUTOCONNECT,
                 svGetValueBoolean(ifcfg, "ONBOOT", TRUE),
                 NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY,
                 (int) svGetValueInt64(ifcfg,
                                       "AUTOCONNECT_PRIORITY",
                                       10,
                                       NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_MIN,
                                       NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_MAX,
                                       NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY_DEFAULT),
                 NM_SETTING_CONNECTION_AUTOCONNECT_RETRIES,
                 (int) svGetValueInt64(ifcfg, "AUTOCONNECT_RETRIES", 10, -1, G_MAXINT32, -1),
                 NM_SETTING_CONNECTION_MULTI_CONNECT,
                 (int) svGetValueInt64(ifcfg,
                                       "MULTI_CONNECT",
                                       10,
                                       G_MININT32,
                                       G_MAXINT32,
                                       NM_CONNECTION_MULTI_CONNECT_DEFAULT),
                 NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES,
                 svGetValueBoolean(ifcfg,
                                   "AUTOCONNECT_SLAVES",
                                   NM_SETTING_CONNECTION_AUTOCONNECT_SLAVES_DEFAULT),
                 NM_SETTING_CONNECTION_LLDP,
                 lldp,
                 NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "USERS", &value);
    if (v) {
        gs_free const char **items = NULL;

        items = nm_strsplit_set(v, " ");
        for (iter = items; iter && *iter; iter++) {
            if (!nm_setting_connection_add_permission(s_con, "user", *iter, NULL))
                PARSE_WARNING("invalid USERS item '%s'", *iter);
        }
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "ZONE", &value);
    g_object_set(s_con, NM_SETTING_CONNECTION_ZONE, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "SECONDARY_UUIDS", &value);
    if (v) {
        gs_free const char **items = NULL;

        items = nm_strsplit_set(v, " \t");
        for (iter = items; iter && *iter; iter++) {
            if (!nm_setting_connection_add_secondary(s_con, *iter))
                PARSE_WARNING("secondary connection UUID '%s' already added", *iter);
        }
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "BRIDGE_UUID", &value);
    if (!v)
        v = svGetValueStr(ifcfg, "BRIDGE", &value);
    if (v) {
        const char *old_value;

        if ((old_value = nm_setting_connection_get_controller(s_con))) {
            PARSE_WARNING("Already configured as port of %s. Ignoring BRIDGE=\"%s\"", old_value, v);
        } else {
            g_object_set(s_con, NM_SETTING_CONNECTION_CONTROLLER, v, NULL);
            g_object_set(s_con,
                         NM_SETTING_CONNECTION_SLAVE_TYPE,
                         NM_SETTING_BRIDGE_SETTING_NAME,
                         NULL);
        }
    }

    check_if_bond_port(ifcfg, s_con);
    check_if_team_port(ifcfg, s_con);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "OVS_PORT_UUID", &value);
    if (!v)
        v = svGetValueStr(ifcfg, "OVS_PORT", &value);
    if (v) {
        const char *old_value;

        if ((old_value = nm_setting_connection_get_controller(s_con))) {
            PARSE_WARNING("Already configured as port of %s. Ignoring OVS_PORT=\"%s\"",
                          old_value,
                          v);
        } else {
            g_object_set(s_con, NM_SETTING_CONNECTION_CONTROLLER, v, NULL);
            g_object_set(s_con,
                         NM_SETTING_CONNECTION_SLAVE_TYPE,
                         NM_SETTING_OVS_PORT_SETTING_NAME,
                         NULL);
        }
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "VRF_UUID", &value);
    if (!v)
        v = svGetValueStr(ifcfg, "VRF", &value);
    if (v) {
        const char *old_value;

        if ((old_value = nm_setting_connection_get_controller(s_con))) {
            PARSE_WARNING("Already configured as port of %s. Ignoring VRF{_UUID}=\"%s\"",
                          old_value,
                          v);
        } else {
            g_object_set(s_con, NM_SETTING_CONNECTION_CONTROLLER, v, NULL);
            g_object_set(s_con,
                         NM_SETTING_CONNECTION_SLAVE_TYPE,
                         NM_SETTING_VRF_SETTING_NAME,
                         NULL);
        }
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "GATEWAY_PING_TIMEOUT", &value);
    if (v) {
        gint64 tmp;

        tmp = _nm_utils_ascii_str_to_int64(v, 10, 0, G_MAXINT32 - 1, -1);
        if (tmp >= 0) {
            if (tmp > 600) {
                tmp = 600;
                PARSE_WARNING("invalid GATEWAY_PING_TIMEOUT time");
            }
            g_object_set(s_con, NM_SETTING_CONNECTION_GATEWAY_PING_TIMEOUT, (guint) tmp, NULL);
        } else
            PARSE_WARNING("invalid GATEWAY_PING_TIMEOUT time");
    }

    switch (svGetValueBoolean(ifcfg, "CONNECTION_METERED", -1)) {
    case TRUE:
        g_object_set(s_con, NM_SETTING_CONNECTION_METERED, NM_METERED_YES, NULL);
        break;
    case FALSE:
        g_object_set(s_con, NM_SETTING_CONNECTION_METERED, NM_METERED_NO, NULL);
        break;
    }

    vint32 = svGetValueInt64(ifcfg, "AUTH_RETRIES", 10, -1, G_MAXINT32, -1);
    g_object_set(s_con, NM_SETTING_CONNECTION_AUTH_RETRIES, (int) vint32, NULL);

    nm_clear_g_free(&value);
    v = svGetValue(ifcfg, "DEVTIMEOUT", &value);
    if (v) {
        v      = nm_str_skip_leading_spaces(v);
        vint64 = _nm_utils_ascii_str_to_int64(v, 10, 0, ((gint64) G_MAXINT32) / 1000, -1);
        if (vint64 != -1)
            vint64 *= 1000;
        else if (v[0] != '\0') {
            char  *endptr;
            double d;

            d      = nm_g_ascii_strtod(v, &endptr);
            endptr = nm_str_skip_leading_spaces(endptr);
            if (errno == 0 && endptr[0] == '\0' && d >= 0.0) {
                d *= 1000.0;

                /* We round. Yes, this is not correct to round IEEE 754 floats in general,
                 * but sufficient for our case where we know that NetworkManager wrote the
                 * setting with up to 3 digits for the milliseconds. */
                d += 0.5;
                if (d >= 0.0 && d <= (double) G_MAXINT32)
                    vint64 = (gint64) d;
            }
        }
        if (vint64 == -1)
            PARSE_WARNING("invalid DEVTIMEOUT setting");
        else
            g_object_set(s_con, NM_SETTING_CONNECTION_WAIT_DEVICE_TIMEOUT, (int) vint64, NULL);
    }

    nm_clear_g_free(&value);
    v = svGetValue(ifcfg, "MUD_URL", &value);
    if (v)
        g_object_set(s_con, NM_SETTING_CONNECTION_MUD_URL, v, NULL);

    i_val = NM_SETTING_CONNECTION_MDNS_DEFAULT;
    if (!svGetValueEnum(ifcfg, "MDNS", nm_setting_connection_mdns_get_type(), &i_val, NULL))
        PARSE_WARNING("invalid MDNS setting");
    g_object_set(s_con, NM_SETTING_CONNECTION_MDNS, i_val, NULL);

    i_val = NM_SETTING_CONNECTION_LLMNR_DEFAULT;
    if (!svGetValueEnum(ifcfg, "LLMNR", nm_setting_connection_llmnr_get_type(), &i_val, NULL))
        PARSE_WARNING("invalid LLMNR setting");
    g_object_set(s_con, NM_SETTING_CONNECTION_LLMNR, i_val, NULL);

    i_val = NM_SETTING_CONNECTION_DNS_OVER_TLS_DEFAULT;
    if (!svGetValueEnum(ifcfg,
                        "DNS_OVER_TLS",
                        nm_setting_connection_dns_over_tls_get_type(),
                        &i_val,
                        NULL))
        PARSE_WARNING("invalid DNS_OVER_TLS setting");
    g_object_set(s_con, NM_SETTING_CONNECTION_DNS_OVER_TLS, i_val, NULL);

    i_val = NM_MPTCP_FLAGS_NONE;
    if (!svGetValueEnum(ifcfg, "MPTCP_FLAGS", nm_mptcp_flags_get_type(), &i_val, NULL))
        PARSE_WARNING("invalid MPTCP_FLAGS setting");
    g_object_set(s_con, NM_SETTING_CONNECTION_MPTCP_FLAGS, (guint) i_val, NULL);

    vint32 = svGetValueInt64(ifcfg, "WAIT_ACTIVATION_DELAY", 10, -1, G_MAXINT32, -1);
    g_object_set(s_con, NM_SETTING_CONNECTION_WAIT_ACTIVATION_DELAY, (int) vint32, NULL);

    return NM_SETTING(s_con);
}

static gboolean
read_ip4_address(shvarFile  *ifcfg,
                 const char *tag,
                 gboolean   *out_has_key,
                 guint32    *out_addr,
                 GError    **error)
{
    gs_free char *value_to_free = NULL;
    const char   *value;
    in_addr_t     a;

    nm_assert(ifcfg);
    nm_assert(tag);
    nm_assert(!error || !*error);

    value = svGetValueStr(ifcfg, tag, &value_to_free);
    if (!value) {
        NM_SET_OUT(out_has_key, FALSE);
        NM_SET_OUT(out_addr, 0);
        return TRUE;
    }

    if (inet_pton(AF_INET, value, &a) != 1) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Invalid %s IP4 address '%s'",
                    tag,
                    value);
        return FALSE;
    }

    NM_SET_OUT(out_has_key, TRUE);
    NM_SET_OUT(out_addr, a);
    return TRUE;
}

static gboolean
is_any_ip4_address_defined(shvarFile *ifcfg, int *idx)
{
    int i, ignore, *ret_idx;

    ret_idx = idx ?: &ignore;

    for (i = -1; i <= 2; i++) {
        gs_free char *value = NULL;
        char          tag[256];

        if (svGetValueStr(ifcfg, numbered_tag(tag, "IPADDR", i), &value)) {
            *ret_idx = i;
            return TRUE;
        }

        if (svGetValueStr(ifcfg, numbered_tag(tag, "PREFIX", i), &value)) {
            *ret_idx = i;
            return TRUE;
        }

        if (svGetValueStr(ifcfg, numbered_tag(tag, "NETMASK", i), &value)) {
            *ret_idx = i;
            return TRUE;
        }
    }
    return FALSE;
}

/* Returns TRUE on missing address or valid address */
static gboolean
read_full_ip4_address(shvarFile    *ifcfg,
                      gint32        which,
                      NMIPAddress  *base_addr,
                      NMIPAddress **out_address,
                      char        **out_gateway,
                      GError      **error)
{
    char          tag[256];
    char          prefix_tag[256];
    guint32       ipaddr;
    gs_free char *value = NULL;
    const char   *v;
    int           prefix = 0;
    gboolean      has_key;
    guint32       a;
    char          inet_buf[NM_INET_ADDRSTRLEN];

    g_return_val_if_fail(which >= -1, FALSE);
    g_return_val_if_fail(ifcfg != NULL, FALSE);
    g_return_val_if_fail(out_address != NULL, FALSE);
    g_return_val_if_fail(*out_address == NULL, FALSE);
    g_return_val_if_fail(!error || !*error, FALSE);

    /* IP address */
    if (!read_ip4_address(ifcfg, numbered_tag(tag, "IPADDR", which), &has_key, &ipaddr, error))
        return FALSE;
    if (!has_key) {
        if (!base_addr)
            return TRUE;
        nm_ip_address_get_address_binary(base_addr, &ipaddr);
    }

    /* Gateway */
    if (out_gateway && !*out_gateway) {
        if (!read_ip4_address(ifcfg, numbered_tag(tag, "GATEWAY", which), &has_key, &a, error))
            return FALSE;
        if (has_key)
            *out_gateway = nm_inet4_ntop_dup(a);
    }

    /* Prefix */
    numbered_tag(prefix_tag, "PREFIX", which);
    v = svGetValueStr(ifcfg, prefix_tag, &value);
    if (v) {
        prefix = _nm_utils_ascii_str_to_int64(v, 10, 0, 32, -1);
        if (prefix < 0) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid IP4 prefix '%s'",
                        v);
            return FALSE;
        }
    } else {
        /* Fall back to NETMASK if no PREFIX was specified */
        if (!read_ip4_address(ifcfg, numbered_tag(tag, "NETMASK", which), &has_key, &a, error))
            return FALSE;
        if (has_key)
            prefix = nm_ip4_addr_netmask_to_prefix(a);
        else {
            if (base_addr)
                prefix = nm_ip_address_get_prefix(base_addr);
            else {
                /* Try to autodetermine the prefix for the address' class */
                prefix = nm_ip4_addr_get_default_prefix(ipaddr);
                PARSE_WARNING("missing %s, assuming %s/%d",
                              prefix_tag,
                              nm_inet4_ntop(ipaddr, inet_buf),
                              prefix);
            }
        }
    }

    *out_address = nm_ip_address_new_binary(AF_INET, &ipaddr, prefix, error);
    if (*out_address)
        return TRUE;

    return FALSE;
}

/*****************************************************************************/

static gboolean
parse_route_line_is_comment(const char *line)
{
    /* we obtained the line from a legacy route file. Here we skip
     * empty lines and comments.
     *
     * initscripts compares: "$line" =~ '^[[:space:]]*(\#.*)?$'
     */
    while (nm_utils_is_separator(line[0]))
        line++;
    if (NM_IN_SET(line[0], '\0', '#'))
        return TRUE;
    return FALSE;
}

/*****************************************************************************/

typedef enum {
    PARSE_LINE_AF_FLAG_FOR_IPV4 = 0x01,
    PARSE_LINE_AF_FLAG_FOR_IPV6 = 0x02,
} ParseLineAFFlag;

typedef struct {
    const char *key;

    /* the element is not available in this case. */
    ParseLineAFFlag disabled : 3;

    bool disabled_with_options_route : 1;

    /* whether the element is to be ignored. Ignord is different from
     * "disabled", because we still parse the option, but don't use it. */
    ParseLineAFFlag ignore : 3;

    bool int_base_16 : 1;

    /* the type, one of PARSE_LINE_TYPE_* */
    char type;

} ParseLineInfo;

typedef struct {
    /* whether the command line option was found, and @v is
     * initialized. */
    bool has : 1;

    union {
        guint8      uint8;
        guint32     uint32;
        gboolean    boolean;
        const char *str;
        struct {
            guint32 uint32;
            bool    lock : 1;
        } uint32_with_lock;
        struct {
            NMIPAddr addr;
            guint8   plen;
            bool     has_plen : 1;
        } addr;
    } v;

} ParseLineData;

enum {
    /* route attributes */
    PARSE_LINE_ATTR_ROUTE_TYPE,
    PARSE_LINE_ATTR_ROUTE_TABLE,
    PARSE_LINE_ATTR_ROUTE_SRC,
    PARSE_LINE_ATTR_ROUTE_FROM,
    PARSE_LINE_ATTR_ROUTE_TOS,
    PARSE_LINE_ATTR_ROUTE_SCOPE,
    PARSE_LINE_ATTR_ROUTE_ONLINK,
    PARSE_LINE_ATTR_ROUTE_WINDOW,
    PARSE_LINE_ATTR_ROUTE_CWND,
    PARSE_LINE_ATTR_ROUTE_INITCWND,
    PARSE_LINE_ATTR_ROUTE_INITRWND,
    PARSE_LINE_ATTR_ROUTE_MTU,
    PARSE_LINE_ATTR_ROUTE_ADVMSS,
    PARSE_LINE_ATTR_ROUTE_RTO_MIN,
    PARSE_LINE_ATTR_ROUTE_QUICKACK,
    PARSE_LINE_ATTR_ROUTE_WEIGHT,

    /* iproute2 arguments that only matter when parsing the file. */
    PARSE_LINE_ATTR_ROUTE_TO,
    PARSE_LINE_ATTR_ROUTE_VIA,
    PARSE_LINE_ATTR_ROUTE_METRIC,

    /* iproute2 parameters that are well known and that we silently ignore. */
    PARSE_LINE_ATTR_ROUTE_DEV,
};

#define PARSE_LINE_TYPE_UINT8            '8'
#define PARSE_LINE_TYPE_UINT32           'u'
#define PARSE_LINE_TYPE_UINT32_WITH_LOCK 'l'
#define PARSE_LINE_TYPE_BOOL             'b'
#define PARSE_LINE_TYPE_ADDR             'a'
#define PARSE_LINE_TYPE_ADDR_WITH_PREFIX 'p'
#define PARSE_LINE_TYPE_IFNAME           'i'
#define PARSE_LINE_TYPE_FLAG             'f'
#define PARSE_LINE_TYPE_ROUTE_SCOPE      'S'
#define PARSE_LINE_TYPE_STRING           's'

/**
 * parse_route_line:
 * @line: the line to parse. This is either a line from the route-* or route6-* file,
 *   or the numbered OPTIONS setting.
 * @addr_family: the address family.
 * @options_route: (in-out): when line is from the OPTIONS setting, this is a pre-created
 *   route object that is completed with the settings from options. Otherwise,
 *   it shall point to %NULL and a new route is created and returned.
 * @out_route: (out) (transfer full) (optional): the parsed %NMIPRoute instance.
 *   In case a @options_route is passed in, it returns the input route that was modified
 *   in-place. But the caller must unref the returned route in either case.
 * @error: the failure description.
 *
 * Parsing the route options line has two modes: one for the numbered OPTIONS
 * setting, and one for initscript's handle_ip_file(), which takes the lines
 * and passes them to `ip route add`. The modes are similar, but certain properties
 * are not allowed for OPTIONS.
 * The mode is differentiated by having an @options_route argument.
 *
 * Returns: returns a negative errno on failure. On success, it returns 0
 *   and @out_route.
 */
static int
parse_route_line(const char *line,
                 int         addr_family,
                 NMIPRoute  *options_route,
                 NMIPRoute **out_route,
                 GError    **error)
{
    static const ParseLineInfo parse_infos[] = {
        [PARSE_LINE_ATTR_ROUTE_TYPE] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_TYPE,
                .type = PARSE_LINE_TYPE_STRING,
            },
        [PARSE_LINE_ATTR_ROUTE_TABLE] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_TABLE,
                .type = PARSE_LINE_TYPE_UINT32,
            },
        [PARSE_LINE_ATTR_ROUTE_SRC] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_SRC,
                .type = PARSE_LINE_TYPE_ADDR,
            },
        [PARSE_LINE_ATTR_ROUTE_FROM] =
            {
                .key      = NM_IP_ROUTE_ATTRIBUTE_FROM,
                .type     = PARSE_LINE_TYPE_ADDR_WITH_PREFIX,
                .disabled = PARSE_LINE_AF_FLAG_FOR_IPV4,
            },
        [PARSE_LINE_ATTR_ROUTE_TOS] =
            {
                .key         = NM_IP_ROUTE_ATTRIBUTE_TOS,
                .type        = PARSE_LINE_TYPE_UINT8,
                .int_base_16 = TRUE,
                .ignore      = PARSE_LINE_AF_FLAG_FOR_IPV6,
            },
        [PARSE_LINE_ATTR_ROUTE_WEIGHT] =
            {
                .key      = NM_IP_ROUTE_ATTRIBUTE_WEIGHT,
                .type     = PARSE_LINE_TYPE_UINT32,
                .disabled = PARSE_LINE_AF_FLAG_FOR_IPV6,
            },
        [PARSE_LINE_ATTR_ROUTE_SCOPE] =
            {
                .key    = NM_IP_ROUTE_ATTRIBUTE_SCOPE,
                .type   = PARSE_LINE_TYPE_ROUTE_SCOPE,
                .ignore = PARSE_LINE_AF_FLAG_FOR_IPV6,
            },
        [PARSE_LINE_ATTR_ROUTE_ONLINK] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_ONLINK,
                .type = PARSE_LINE_TYPE_FLAG,
            },
        [PARSE_LINE_ATTR_ROUTE_WINDOW] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_WINDOW,
                .type = PARSE_LINE_TYPE_UINT32_WITH_LOCK,
            },
        [PARSE_LINE_ATTR_ROUTE_CWND] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_CWND,
                .type = PARSE_LINE_TYPE_UINT32_WITH_LOCK,
            },
        [PARSE_LINE_ATTR_ROUTE_ADVMSS] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_ADVMSS,
                .type = PARSE_LINE_TYPE_UINT32_WITH_LOCK,
            },
        [PARSE_LINE_ATTR_ROUTE_INITCWND] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_INITCWND,
                .type = PARSE_LINE_TYPE_UINT32_WITH_LOCK,
            },
        [PARSE_LINE_ATTR_ROUTE_INITRWND] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_INITRWND,
                .type = PARSE_LINE_TYPE_UINT32_WITH_LOCK,
            },
        [PARSE_LINE_ATTR_ROUTE_MTU] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_MTU,
                .type = PARSE_LINE_TYPE_UINT32_WITH_LOCK,
            },
        [PARSE_LINE_ATTR_ROUTE_QUICKACK] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_QUICKACK,
                .type = PARSE_LINE_TYPE_BOOL,
            },
        [PARSE_LINE_ATTR_ROUTE_RTO_MIN] =
            {
                .key  = NM_IP_ROUTE_ATTRIBUTE_RTO_MIN,
                .type = PARSE_LINE_TYPE_UINT32,
            },
        [PARSE_LINE_ATTR_ROUTE_TO] =
            {
                .key                         = "to",
                .type                        = PARSE_LINE_TYPE_ADDR_WITH_PREFIX,
                .disabled_with_options_route = TRUE,
            },
        [PARSE_LINE_ATTR_ROUTE_VIA] =
            {
                .key                         = "via",
                .type                        = PARSE_LINE_TYPE_ADDR,
                .disabled_with_options_route = TRUE,
            },
        [PARSE_LINE_ATTR_ROUTE_METRIC] =
            {
                .key                         = "metric",
                .type                        = PARSE_LINE_TYPE_UINT32,
                .disabled_with_options_route = TRUE,
            },

        [PARSE_LINE_ATTR_ROUTE_DEV] =
            {
                .key    = "dev",
                .type   = PARSE_LINE_TYPE_IFNAME,
                .ignore = PARSE_LINE_AF_FLAG_FOR_IPV4 | PARSE_LINE_AF_FLAG_FOR_IPV6,
                .disabled_with_options_route = TRUE,
            },
    };
    nm_auto_unref_ip_route NMIPRoute *route      = NULL;
    gs_free const char              **words_free = NULL;
    const char *const                *words;
    const char                       *s;
    gsize                             i_words;
    guint                             i;
    char                              buf1[256];
    char                              buf2[256];
    ParseLineData                     parse_datas[G_N_ELEMENTS(parse_infos)] = {};
    const ParseLineAFFlag             af_flag =
        (addr_family == AF_INET) ? PARSE_LINE_AF_FLAG_FOR_IPV4 : PARSE_LINE_AF_FLAG_FOR_IPV6;

    nm_assert(line);
    nm_assert_addr_family(addr_family);
    nm_assert(!options_route || nm_ip_route_get_family(options_route) == addr_family);

    /* initscripts read the legacy route file line-by-line and
     * use it as `ip route add $line`, thus doing split+glob.
     * Splitting on IFS (which we consider '<space><tab><newline>')
     * and globbing (which we obviously don't do).
     *
     * I think it's a mess, because it doesn't support escaping or
     * quoting. In fact, it can only encode benign values.
     *
     * We also use the same form for the numbered OPTIONS
     * variable. I think it's bad not to support any form of
     * escaping. But do that for now.
     *
     * Maybe later we want to support some form of quotation here.
     * Which of course, would be incompatible with initscripts.
     */
    words_free = nm_strsplit_set(line, " \t\n");

    words = words_free ?: NM_PTRARRAY_EMPTY(const char *);

    for (i_words = 0; words[i_words];) {
        const gsize          i_words0 = i_words;
        const char *const    w        = words[i_words0];
        const ParseLineInfo *p_info;
        ParseLineData       *p_data;
        gboolean             unqualified_addr = FALSE;

        for (i = 0; i < G_N_ELEMENTS(parse_infos); i++) {
            p_info = &parse_infos[i];
            p_data = &parse_datas[i];

            if ((p_info->disabled & af_flag)
                || (p_info->disabled_with_options_route && options_route))
                continue;

            if (!nm_streq(w, p_info->key))
                continue;

            if (p_data->has) {
                /* iproute2 for most arguments allows specifying them multiple times.
                 * Let's not do that. */
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Duplicate option \"%s\"",
                            w);
                return -EINVAL;
            }

            p_data->has = TRUE;
            switch (p_info->type) {
            case PARSE_LINE_TYPE_UINT8:
                i_words++;
                goto parse_line_type_uint8;
            case PARSE_LINE_TYPE_UINT32:
                i_words++;
                goto parse_line_type_uint32;
            case PARSE_LINE_TYPE_UINT32_WITH_LOCK:
                i_words++;
                goto parse_line_type_uint32_with_lock;
            case PARSE_LINE_TYPE_BOOL:
                i_words++;
                goto parse_line_type_bool;
            case PARSE_LINE_TYPE_ADDR:
                i_words++;
                goto parse_line_type_addr;
            case PARSE_LINE_TYPE_ADDR_WITH_PREFIX:
                i_words++;
                goto parse_line_type_addr_with_prefix;
            case PARSE_LINE_TYPE_IFNAME:
                i_words++;
                goto parse_line_type_ifname;
            case PARSE_LINE_TYPE_FLAG:
                i_words++;
                goto next;
            case PARSE_LINE_TYPE_ROUTE_SCOPE:
                i_words++;
                goto parse_line_type_route_scope;
            default:
                nm_assert_not_reached();
            }
        }

        p_info = &parse_infos[PARSE_LINE_ATTR_ROUTE_TYPE];
        p_data = &parse_datas[PARSE_LINE_ATTR_ROUTE_TYPE];
        if (!p_data->has
            && NM_IN_STRSET(w,
                            "local",
                            "unicast",
                            "broadcast"
                            "multicast",
                            "throw",
                            "unreachable",
                            "prohibit",
                            "blackhole",
                            "nat")) {
            p_data->has = TRUE;
            goto parse_line_type_string;
        }

        /* "to" is also accepted unqualified... (once) */
        p_info = &parse_infos[PARSE_LINE_ATTR_ROUTE_TO];
        p_data = &parse_datas[PARSE_LINE_ATTR_ROUTE_TO];
        if (!p_data->has && !(p_info->disabled & af_flag)
            && !(p_info->disabled_with_options_route && options_route)) {
            unqualified_addr = TRUE;
            p_data->has      = TRUE;
            goto parse_line_type_addr;
        }

        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Unrecognized argument (\"to\" is duplicate or \"%s\" is garbage)",
                    w);
        return -EINVAL;

parse_line_type_route_scope:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;
        if (nm_streq(s, "global"))
            p_data->v.uint8 = RT_SCOPE_UNIVERSE;
        else if (nm_streq(s, "nowhere"))
            p_data->v.uint8 = RT_SCOPE_NOWHERE;
        else if (nm_streq(s, "host"))
            p_data->v.uint8 = RT_SCOPE_HOST;
        else if (nm_streq(s, "link"))
            p_data->v.uint8 = RT_SCOPE_LINK;
        else if (nm_streq(s, "site"))
            p_data->v.uint8 = RT_SCOPE_SITE;
        else {
            p_data->v.uint8 = _nm_utils_ascii_str_to_int64(s, 0, 0, G_MAXUINT8, 0);
            if (errno) {
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Argument for \"%s\" is not a valid number",
                            w);
                return -EINVAL;
            }
        }
        i_words++;
        goto next;

parse_line_type_uint8:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;
        p_data->v.uint8 =
            _nm_utils_ascii_str_to_int64(s, p_info->int_base_16 ? 16 : 10, 0, G_MAXUINT8, 0);
        if (errno) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Argument for \"%s\" is not a valid number",
                        w);
            return -EINVAL;
        }
        i_words++;
        goto next;

parse_line_type_uint32:
parse_line_type_uint32_with_lock:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;
        if (p_info->type == PARSE_LINE_TYPE_UINT32_WITH_LOCK) {
            if (nm_streq(s, "lock")) {
                s = words[++i_words];
                if (!s)
                    goto err_word_missing_argument;
                p_data->v.uint32_with_lock.lock = TRUE;
            } else
                p_data->v.uint32_with_lock.lock = FALSE;
            p_data->v.uint32_with_lock.uint32 =
                _nm_utils_ascii_str_to_int64(s, 10, 0, G_MAXUINT32, 0);
        } else {
            p_data->v.uint32 = _nm_utils_ascii_str_to_int64(s, 10, 0, G_MAXUINT32, 0);
        }
        if (errno) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Argument for \"%s\" is not a valid number",
                        w);
            return -EINVAL;
        }
        i_words++;
        goto next;

parse_line_type_bool:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;
        p_data->v.boolean = !!_nm_utils_ascii_str_to_int64(s, 10, 0, 1, 0);
        if (errno) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Argument for \"%s\" is not a valid boolean number",
                        w);
            return -EINVAL;
        }
        i_words++;
        goto next;

parse_line_type_ifname:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;
        i_words++;
        goto next;

parse_line_type_addr:
parse_line_type_addr_with_prefix:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;
        {
            int prefix = -1;

            if (p_info->type == PARSE_LINE_TYPE_ADDR) {
                if (!nm_inet_parse_bin(addr_family, s, NULL, &p_data->v.addr.addr)) {
                    if (p_info == &parse_infos[PARSE_LINE_ATTR_ROUTE_VIA]
                        && nm_streq(s, "(null)")) {
                        /* Due to a bug, would older versions of NM write "via (null)"
                         * (rh#1452648). Workaround that, and accept it.*/
                        memset(&p_data->v.addr.addr, 0, sizeof(p_data->v.addr.addr));
                    } else {
                        if (unqualified_addr) {
                            g_set_error(error,
                                        NM_SETTINGS_ERROR,
                                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                        "Unrecognized argument (inet prefix is expected rather "
                                        "then \"%s\")",
                                        w);
                            return -EINVAL;
                        } else {
                            g_set_error(error,
                                        NM_SETTINGS_ERROR,
                                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                        "Argument for \"%s\" is not a valid IPv%c address",
                                        w,
                                        addr_family == AF_INET ? '4' : '6');
                        }
                        return -EINVAL;
                    }
                }
            } else {
                nm_assert(p_info->type == PARSE_LINE_TYPE_ADDR_WITH_PREFIX);
                if (p_info == &parse_infos[PARSE_LINE_ATTR_ROUTE_TO] && nm_streq(s, "default")) {
                    memset(&p_data->v.addr.addr, 0, sizeof(p_data->v.addr.addr));
                    prefix = 0;
                } else if (!nm_inet_parse_with_prefix_bin(addr_family,
                                                          s,
                                                          NULL,
                                                          &p_data->v.addr.addr,
                                                          &prefix)) {
                    g_set_error(error,
                                NM_SETTINGS_ERROR,
                                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                "Argument for \"%s\" is not ADDR/PREFIX format",
                                w);
                    return -EINVAL;
                }
            }
            if (prefix == -1)
                p_data->v.addr.has_plen = FALSE;
            else {
                p_data->v.addr.has_plen = TRUE;
                p_data->v.addr.plen     = prefix;
            }
        }
        i_words++;
        goto next;

parse_line_type_string:
        s = words[i_words];
        if (!s)
            goto err_word_missing_argument;

        p_data->v.str = s;
        i_words++;
        goto next;

err_word_missing_argument:
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Missing argument for \"%s\"",
                    w);
        return -EINVAL;
next:;
    }

    if (options_route) {
        route = options_route;
        nm_ip_route_ref(route);
    } else {
        ParseLineData *data_to     = &parse_datas[PARSE_LINE_ATTR_ROUTE_TO];
        ParseLineData *data_via    = &parse_datas[PARSE_LINE_ATTR_ROUTE_VIA];
        ParseLineData *data_metric = &parse_datas[PARSE_LINE_ATTR_ROUTE_METRIC];
        guint          prefix;

        if (!data_to->has) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Missing destination prefix");
            return -EINVAL;
        }

        prefix =
            data_to->v.addr.has_plen ? data_to->v.addr.plen : (addr_family == AF_INET ? 32 : 128);

        route =
            nm_ip_route_new_binary(addr_family,
                                   &data_to->v.addr.addr,
                                   prefix,
                                   data_via->has ? &data_via->v.addr.addr : NULL,
                                   data_metric->has ? (gint64) data_metric->v.uint32 : (gint64) -1,
                                   error);
        data_to->has     = FALSE;
        data_via->has    = FALSE;
        data_metric->has = FALSE;
        if (!route)
            return -EINVAL;
    }

    for (i = 0; i < G_N_ELEMENTS(parse_infos); i++) {
        const ParseLineInfo *p_info = &parse_infos[i];
        ParseLineData       *p_data = &parse_datas[i];

        if (!p_data->has)
            continue;

        if ((p_info->ignore & af_flag) || (p_info->disabled & af_flag)
            || (p_info->disabled_with_options_route && options_route))
            continue;

        switch (p_info->type) {
        case PARSE_LINE_TYPE_UINT8:
        case PARSE_LINE_TYPE_ROUTE_SCOPE:
            nm_ip_route_set_attribute(route, p_info->key, g_variant_new_byte(p_data->v.uint8));
            break;
        case PARSE_LINE_TYPE_UINT32:
            nm_ip_route_set_attribute(route, p_info->key, g_variant_new_uint32(p_data->v.uint32));
            break;
        case PARSE_LINE_TYPE_UINT32_WITH_LOCK:
            if (p_data->v.uint32_with_lock.lock) {
                nm_ip_route_set_attribute(route,
                                          nm_sprintf_buf(buf1, "lock-%s", p_info->key),
                                          g_variant_new_boolean(TRUE));
            }
            nm_ip_route_set_attribute(route,
                                      p_info->key,
                                      g_variant_new_uint32(p_data->v.uint32_with_lock.uint32));
            break;
        case PARSE_LINE_TYPE_BOOL:
            nm_ip_route_set_attribute(route, p_info->key, g_variant_new_boolean(p_data->v.boolean));
            break;
        case PARSE_LINE_TYPE_ADDR:
        case PARSE_LINE_TYPE_ADDR_WITH_PREFIX:
            nm_ip_route_set_attribute(
                route,
                p_info->key,
                g_variant_new_printf(
                    "%s%s",
                    inet_ntop(addr_family, &p_data->v.addr.addr, buf1, sizeof(buf1)),
                    p_data->v.addr.has_plen
                        ? nm_sprintf_buf(buf2, "/%u", (unsigned) p_data->v.addr.plen)
                        : ""));
            break;
        case PARSE_LINE_TYPE_FLAG:
            /* NOTE: the flag (for "onlink") only allows setting "TRUE" explicitly.
             * There is no way to express an explicit "FALSE" setting
             * of this attribute, hence, the file format cannot encode
             * that configuration. */
            nm_ip_route_set_attribute(route, p_info->key, g_variant_new_boolean(TRUE));
            break;
        case PARSE_LINE_TYPE_STRING:
            nm_ip_route_set_attribute(route, p_info->key, g_variant_new_string(p_data->v.str));
            break;
        default:
            nm_assert_not_reached();
            break;
        }
    }

    nm_assert(_nm_ip_route_attribute_validate_all(route, NULL));

    NM_SET_OUT(out_route, g_steal_pointer(&route));
    return 0;
}

/* Returns TRUE on missing route or valid route */
static gboolean
read_one_ip4_route(shvarFile *ifcfg, guint32 which, NMIPRoute **out_route, GError **error)
{
    char          tag[256];
    char          netmask_tag[256];
    guint32       dest;
    guint32       next_hop;
    guint32       netmask;
    gboolean      has_key;
    const char   *v;
    gs_free char *value = NULL;
    gint64        prefix, metric;
    char          inet_buf[NM_INET_ADDRSTRLEN];

    g_return_val_if_fail(ifcfg != NULL, FALSE);
    g_return_val_if_fail(out_route && !*out_route, FALSE);
    g_return_val_if_fail(!error || !*error, FALSE);

    /* Destination */
    if (!read_ip4_address(ifcfg, numbered_tag(tag, "ADDRESS", which), &has_key, &dest, error))
        return FALSE;
    if (!has_key) {
        /* missing route = success */
        *out_route = NULL;
        return TRUE;
    }

    /* Next hop */
    if (!read_ip4_address(ifcfg, numbered_tag(tag, "GATEWAY", which), NULL, &next_hop, error))
        return FALSE;
    /* We don't make distinction between missing GATEWAY IP and 0.0.0.0 */

    /* Prefix */
    if (!read_ip4_address(ifcfg,
                          numbered_tag(netmask_tag, "NETMASK", which),
                          &has_key,
                          &netmask,
                          error))
        return FALSE;
    if (has_key) {
        prefix = nm_ip4_addr_netmask_to_prefix(netmask);
        if (netmask != nm_ip4_addr_netmask_from_prefix(prefix)) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid IP4 netmask '%s' \"%s\"",
                        netmask_tag,
                        nm_inet4_ntop(netmask, inet_buf));
            return FALSE;
        }
    } else {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Missing IP4 route element '%s'",
                    netmask_tag);
        return FALSE;
    }

    /* Metric */
    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, numbered_tag(tag, "METRIC", which), &value);
    if (v) {
        metric = _nm_utils_ascii_str_to_int64(v, 10, 0, G_MAXUINT32, -1);
        if (metric < 0) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid IP4 route metric '%s'",
                        v);
            return FALSE;
        }
    } else
        metric = -1;

    *out_route = nm_ip_route_new_binary(AF_INET, &dest, prefix, &next_hop, metric, error);
    if (!*out_route)
        return FALSE;

    /* Options */
    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, numbered_tag(tag, "OPTIONS", which), &value);
    if (v) {
        if (parse_route_line(v, AF_INET, *out_route, NULL, error) < 0) {
            nm_clear_pointer(out_route, nm_ip_route_unref);
            return FALSE;
        }
    }

    return TRUE;
}

static gboolean
read_route_file_parse(int                addr_family,
                      const char        *filename,
                      const char        *contents,
                      gsize              len,
                      NMSettingIPConfig *s_ip,
                      GError           **error)
{
    gsize line_num;

    nm_assert(filename);
    nm_assert(addr_family == nm_setting_ip_config_get_addr_family(s_ip));
    nm_assert(!error || !*error);

    if (len <= 0)
        return TRUE; /* missing/empty = success */

    line_num = 0;
    while (TRUE) {
        nm_auto_unref_ip_route NMIPRoute *route = NULL;
        gs_free_error GError             *local = NULL;
        const char                       *line  = contents;
        char                             *eol;
        int                               e;

        eol = strchr(contents, '\n');
        if (eol) {
            eol[0]   = '\0';
            contents = &eol[1];
        }

        line_num++;

        if (parse_route_line_is_comment(line))
            goto next;

        e = parse_route_line(line, addr_family, NULL, &route, &local);

        if (e < 0) {
            if (e == -ERANGE)
                PARSE_WARNING("ignoring manual default route: '%s' (%s)", line, filename);
            else {
                /* we accept all unrecognized lines, because otherwise we would reject the
                 * entire connection. */
                PARSE_WARNING("ignoring invalid route at \"%s\" (%s:%lu): %s",
                              line,
                              filename,
                              (long unsigned) line_num,
                              local->message);
            }
            goto next;
        }

        if (!nm_setting_ip_config_add_route(s_ip, route))
            PARSE_WARNING("duplicate IPv%c route", addr_family == AF_INET ? '4' : '6');

next:
        if (!eol)
            return TRUE;

        /* restore original content. */
        eol[0] = '\n';
    }
}

static gboolean
read_route_file(int addr_family, const char *filename, NMSettingIPConfig *s_ip, GError **error)
{
    gs_free char *contents = NULL;
    gsize         len;

    nm_assert(filename);
    nm_assert(addr_family == nm_setting_ip_config_get_addr_family(s_ip));
    nm_assert(!error || !*error);

    if (!g_file_get_contents(filename, &contents, &len, NULL))
        return TRUE; /* missing/empty = success */

    return read_route_file_parse(addr_family, filename, contents, len, s_ip, error);
}

static void
parse_dns_options(NMSettingIPConfig *ip_config, const char *value)
{
    gs_free const char **options = NULL;
    const char *const   *item;

    g_return_if_fail(ip_config);

    if (!value)
        return;

    if (!nm_setting_ip_config_has_dns_options(ip_config))
        nm_setting_ip_config_clear_dns_options(ip_config, TRUE);

    options = nm_strsplit_set(value, " ");
    if (options) {
        for (item = options; *item; item++) {
            if (!nm_setting_ip_config_add_dns_option(ip_config, *item))
                PARSE_WARNING("can't add DNS option '%s'", *item);
        }
    }
}

static gboolean
parse_full_ip6_address(shvarFile    *ifcfg,
                       const char   *addr_str,
                       int           i,
                       NMIPAddress **out_address,
                       GError      **error)
{
    NMIPAddress *addr;
    NMIPAddr     addr_bin;
    int          prefix;

    nm_assert(addr_str);
    nm_assert(out_address && !*out_address);
    nm_assert(!error || !*error);

    if (!nm_inet_parse_with_prefix_bin(AF_INET6, addr_str, NULL, &addr_bin, &prefix)) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Invalid IP6 address '%s'",
                    addr_str);
        return FALSE;
    }

    if (prefix < 0)
        prefix = 64;

    addr = nm_ip_address_new_binary(AF_INET6, &addr_bin, prefix, error);
    if (!addr)
        return FALSE;

    *out_address = addr;
    return TRUE;
}

static NMSetting *
make_user_setting(shvarFile *ifcfg)
{
    gboolean                       has_user_data = FALSE;
    gs_unref_object NMSettingUser *s_user        = NULL;
    gs_unref_hashtable GHashTable *keys          = NULL;
    GHashTableIter                 iter;
    const char                    *key;
    nm_auto_free_gstring GString  *str = NULL;

    keys = svGetKeys(ifcfg, SV_KEY_TYPE_USER);
    if (!keys)
        return NULL;

    g_hash_table_iter_init(&iter, keys);
    while (g_hash_table_iter_next(&iter, (gpointer *) &key, NULL)) {
        const char   *value;
        gs_free char *value_to_free = NULL;

        value = svGetValue(ifcfg, key, &value_to_free);

        if (!value)
            continue;

        if (!str)
            str = g_string_sized_new(100);
        else
            g_string_set_size(str, 0);

        if (!nm_utils_env_var_decode_name(key + NM_STRLEN("NM_USER_"), str))
            continue;

        if (!s_user)
            s_user = NM_SETTING_USER(nm_setting_user_new());

        if (nm_setting_user_set_data(s_user, str->str, value, NULL))
            has_user_data = TRUE;
    }

    return has_user_data ? NM_SETTING(g_steal_pointer(&s_user)) : NULL;
}

static void
make_match_setting_prop(const char      *v,
                        NMSettingMatch **s_match,
                        void (*add_fcn)(NMSettingMatch *s_match, const char *value))
{
    gs_free const char **strv = NULL;
    gsize                i;

    strv = nm_utils_escaped_tokens_split(v, NM_ASCII_SPACES);
    if (strv) {
        for (i = 0; strv[i]; i++) {
            if (!(*s_match))
                *s_match = NM_SETTING_MATCH(nm_setting_match_new());
            add_fcn(*s_match, strv[i]);
        }
    }
}

static NMSetting *
make_match_setting(shvarFile *ifcfg)
{
    NMSettingMatch *s_match   = NULL;
    gs_free char   *value_ifn = NULL;
    gs_free char   *value_kcl = NULL;
    gs_free char   *value_d   = NULL;
    gs_free char   *value_p   = NULL;
    const char     *v;

    v = svGetValueStr(ifcfg, "MATCH_INTERFACE_NAME", &value_ifn);
    make_match_setting_prop(v, &s_match, nm_setting_match_add_interface_name);
    v = svGetValueStr(ifcfg, "MATCH_KERNEL_COMMAND_LINE", &value_kcl);
    make_match_setting_prop(v, &s_match, nm_setting_match_add_kernel_command_line);
    v = svGetValueStr(ifcfg, "MATCH_DRIVER", &value_d);
    make_match_setting_prop(v, &s_match, nm_setting_match_add_driver);
    v = svGetValueStr(ifcfg, "MATCH_PATH", &value_p);
    make_match_setting_prop(v, &s_match, nm_setting_match_add_path);

    return NM_SETTING(s_match);
}

static NMSetting *
make_proxy_setting(shvarFile *ifcfg)
{
    NMSettingProxy      *s_proxy = NULL;
    gs_free char        *value   = NULL;
    const char          *v;
    NMSettingProxyMethod method;

    v = svGetValueStr(ifcfg, "PROXY_METHOD", &value);
    if (!v)
        return NULL;

    if (!g_ascii_strcasecmp(v, "auto"))
        method = NM_SETTING_PROXY_METHOD_AUTO;
    else
        method = NM_SETTING_PROXY_METHOD_NONE;

    s_proxy = (NMSettingProxy *) nm_setting_proxy_new();

    switch (method) {
    case NM_SETTING_PROXY_METHOD_AUTO:
        g_object_set(s_proxy, NM_SETTING_PROXY_METHOD, (int) NM_SETTING_PROXY_METHOD_AUTO, NULL);

        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, "PAC_URL", &value);
        if (v)
            g_object_set(s_proxy, NM_SETTING_PROXY_PAC_URL, v, NULL);

        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, "PAC_SCRIPT", &value);
        if (v)
            g_object_set(s_proxy, NM_SETTING_PROXY_PAC_SCRIPT, v, NULL);

        break;
    case NM_SETTING_PROXY_METHOD_NONE:
        g_object_set(s_proxy, NM_SETTING_PROXY_METHOD, (int) NM_SETTING_PROXY_METHOD_NONE, NULL);
        break;
    }

    if (svGetValueBoolean(ifcfg, "BROWSER_ONLY", FALSE))
        g_object_set(s_proxy, NM_SETTING_PROXY_BROWSER_ONLY, TRUE, NULL);

    return NM_SETTING(s_proxy);
}

static NMSetting *
make_ip4_setting(shvarFile *ifcfg,
                 shvarFile *network_ifcfg,
                 gboolean   routes_read,
                 gboolean  *out_has_defroute,
                 GError   **error)
{
    gs_unref_object NMSettingIPConfig *s_ip4      = NULL;
    gs_free char                      *route_path = NULL;
    gs_free char                      *value      = NULL;
    const char                        *v;
    char                              *method;
    gs_free char                      *dns_options_free = NULL;
    const char                        *dns_options      = NULL;
    gs_free char                      *gateway          = NULL;
    int                                i;
    guint32                            a;
    gboolean                           has_key;
    gboolean                           never_default;
    gint64                             i64;
    int                                priority;
    const char *const                 *item;
    guint32                            route_table;
    int                                ipv4_link_local;

    nm_assert(out_has_defroute && !*out_has_defroute);

    s_ip4 = (NMSettingIPConfig *) nm_setting_ip4_config_new();

    /* First check if DEFROUTE is set for this device; DEFROUTE has the
     * opposite meaning from never-default. The default if DEFROUTE is not
     * specified is DEFROUTE=yes which means that this connection can be used
     * as a default route
     */
    i = svGetValueBoolean(ifcfg, "DEFROUTE", -1);
    if (i == -1)
        never_default = FALSE;
    else {
        never_default     = !i;
        *out_has_defroute = TRUE;
    }

    /* Then check if GATEWAYDEV; it's global and overrides DEFROUTE */
    if (network_ifcfg) {
        gs_free char *gatewaydev_value = NULL;
        const char   *gatewaydev;

        /* Get the connection ifcfg device name and the global gateway device */
        v           = svGetValueStr(ifcfg, "DEVICE", &value);
        gatewaydev  = svGetValueStr(network_ifcfg, "GATEWAYDEV", &gatewaydev_value);
        dns_options = svGetValue(network_ifcfg, "RES_OPTIONS", &dns_options_free);

        /* If there was a global gateway device specified, then only connections
         * for that device can be the default connection.
         */
        if (gatewaydev && v)
            never_default = !!strcmp(v, gatewaydev);

        nm_clear_g_free(&value);
    }

    v = svGetValueStr(ifcfg, "BOOTPROTO", &value);

    if (!v || !*v || !g_ascii_strcasecmp(v, "none")) {
        if (is_any_ip4_address_defined(ifcfg, NULL))
            method = NM_SETTING_IP4_CONFIG_METHOD_MANUAL;
        else
            method = NM_SETTING_IP4_CONFIG_METHOD_DISABLED;
    } else if (!g_ascii_strcasecmp(v, "bootp") || !g_ascii_strcasecmp(v, "dhcp")) {
        method = NM_SETTING_IP4_CONFIG_METHOD_AUTO;
    } else if (!g_ascii_strcasecmp(v, "static")) {
        if (is_any_ip4_address_defined(ifcfg, NULL))
            method = NM_SETTING_IP4_CONFIG_METHOD_MANUAL;
        else
            method = NM_SETTING_IP4_CONFIG_METHOD_DISABLED;
    } else if (!g_ascii_strcasecmp(v, "autoip")) {
        method = NM_SETTING_IP4_CONFIG_METHOD_LINK_LOCAL;
    } else if (!g_ascii_strcasecmp(v, "shared")) {
        method = NM_SETTING_IP4_CONFIG_METHOD_SHARED;
    } else {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Unknown BOOTPROTO '%s'",
                    v);
        return NULL;
    }

    /* the route table (policy routing) is ignored if we don't handle routes. */
    route_table = svGetValueInt64(ifcfg, "IPV4_ROUTE_TABLE", 10, 0, G_MAXUINT32, 0);
    if (route_table != 0 && !routes_read) {
        PARSE_WARNING(
            "'rule-' or 'rule6-' files are present; Policy routing (IPV4_ROUTE_TABLE) is ignored");
        route_table = 0;
    }

    ipv4_link_local = NM_SETTING_IP4_LL_DEFAULT;
    if (!svGetValueEnum(ifcfg,
                        "IPV4_LINK_LOCAL",
                        nm_setting_ip4_link_local_get_type(),
                        &ipv4_link_local,
                        NULL))
        PARSE_WARNING("invalid IPV4_LINK_LOCAL setting");

    g_object_set(s_ip4,
                 NM_SETTING_IP_CONFIG_METHOD,
                 method,
                 NM_SETTING_IP_CONFIG_IGNORE_AUTO_DNS,
                 !svGetValueBoolean(ifcfg, "PEERDNS", TRUE),
                 NM_SETTING_IP_CONFIG_IGNORE_AUTO_ROUTES,
                 !svGetValueBoolean(ifcfg, "PEERROUTES", TRUE),
                 NM_SETTING_IP_CONFIG_NEVER_DEFAULT,
                 never_default,
                 NM_SETTING_IP_CONFIG_MAY_FAIL,
                 !svGetValueBoolean(ifcfg, "IPV4_FAILURE_FATAL", FALSE),
                 NM_SETTING_IP_CONFIG_ROUTE_METRIC,
                 svGetValueInt64(ifcfg, "IPV4_ROUTE_METRIC", 10, -1, G_MAXUINT32, -1),
                 NM_SETTING_IP_CONFIG_ROUTE_TABLE,
                 (guint) route_table,
                 NM_SETTING_IP4_CONFIG_LINK_LOCAL,
                 ipv4_link_local,
                 NM_SETTING_IP_CONFIG_AUTO_ROUTE_EXT_GW,
                 svGetValueTernary(ifcfg, "IPV4_AUTO_ROUTE_EXT_GW"),
                 NM_SETTING_IP_CONFIG_REPLACE_LOCAL_RULE,
                 svGetValueTernary(ifcfg, "IPV4_REPLACE_LOCAL_RULE"),
                 NULL);

    if (nm_streq(method, NM_SETTING_IP4_CONFIG_METHOD_DISABLED))
        return NM_SETTING(g_steal_pointer(&s_ip4));

    /* Handle DHCP settings */
    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCP_HOSTNAME", &value);
    if (v)
        g_object_set(s_ip4, NM_SETTING_IP_CONFIG_DHCP_HOSTNAME, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCP_FQDN", &value);
    if (v) {
        g_object_set(s_ip4,
                     NM_SETTING_IP_CONFIG_DHCP_HOSTNAME,
                     NULL,
                     NM_SETTING_IP4_CONFIG_DHCP_FQDN,
                     v,
                     NULL);
    }

    i64 = svGetValueInt64(ifcfg, "DHCP_HOSTNAME_FLAGS", 10, 0, G_MAXUINT32, -1);
    if (i64 > -1) {
        g_object_set(s_ip4, NM_SETTING_IP_CONFIG_DHCP_HOSTNAME_FLAGS, (guint) i64, NULL);
    }

    g_object_set(s_ip4,
                 NM_SETTING_IP_CONFIG_DHCP_SEND_HOSTNAME,
                 svGetValueBoolean(ifcfg, "DHCP_SEND_HOSTNAME", TRUE),
                 NM_SETTING_IP_CONFIG_DHCP_TIMEOUT,
                 (int) svGetValueInt64(ifcfg, "IPV4_DHCP_TIMEOUT", 10, 0, G_MAXINT32, 0),
                 NM_SETTING_IP_CONFIG_REQUIRED_TIMEOUT,
                 (int) svGetValueInt64(ifcfg, "IPV4_REQUIRED_TIMEOUT", 10, 0, G_MAXINT32, -1),
                 NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCP_CLIENT_ID", &value);
    if (v)
        g_object_set(s_ip4, NM_SETTING_IP4_CONFIG_DHCP_CLIENT_ID, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCP_VENDOR_CLASS_IDENTIFIER", &value);
    if (v)
        g_object_set(s_ip4, NM_SETTING_IP4_CONFIG_DHCP_VENDOR_CLASS_IDENTIFIER, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCP_IAID", &value);
    if (v)
        g_object_set(s_ip4, NM_SETTING_IP_CONFIG_DHCP_IAID, v, NULL);

    /* Read static IP addresses.
     * Read them even for AUTO method - in this case the addresses are
     * added to the automatic ones. Note that this is not currently supported by
     * the legacy 'network' service (ifup-eth).
     */
    for (i = -1;; i++) {
        NMIPAddress *addr = NULL;

        /* gateway will only be set if still unset. Hence, we don't leak gateway
         * here by calling read_full_ip4_address() repeatedly */
        if (!read_full_ip4_address(ifcfg, i, NULL, &addr, &gateway, error))
            return NULL;

        if (!addr) {
            /* The first mandatory variable is 2-indexed (IPADDR2)
             * Variables IPADDR, IPADDR0 and IPADDR1 are optional */
            if (i > 1)
                break;
            continue;
        }

        if (!nm_setting_ip_config_add_address(s_ip4, addr))
            PARSE_WARNING("duplicate IP4 address");
        nm_ip_address_unref(addr);
    }

    /* Gateway */
    if (!gateway) {
        if (network_ifcfg) {
            gboolean read_success;

            read_success = read_ip4_address(network_ifcfg, "GATEWAY", &has_key, &a, error);
            if (!read_success)
                return NULL;
            if (has_key) {
                if (nm_setting_ip_config_get_num_addresses(s_ip4) == 0) {
                    gs_free char *f = g_path_get_basename(svFileGetName(ifcfg));
                    PARSE_WARNING("ignoring GATEWAY (/etc/sysconfig/network) for %s "
                                  "because the connection has no static addresses",
                                  f);
                } else
                    gateway = nm_inet4_ntop_dup(a);
            }
        }
    }
    g_object_set(s_ip4, NM_SETTING_IP_CONFIG_GATEWAY, gateway, NULL);

    if (gateway && never_default)
        PARSE_WARNING("GATEWAY will be ignored when DEFROUTE is disabled");

    /* We used to skip saving a lot of unused properties for the ipv4 shared method.
     * We want now to persist them but... unfortunately loading DNS or DOMAIN options
     * would cause a fail in the ipv4 verify() function. As we don't want any regression
     * in the unlikely event that someone has a working ifcfg file for an IPv4 shared ip
     * connection with a crafted "DNS" entry... don't load it. So we will avoid failing
     * the connection) */
    if (!nm_streq(method, NM_SETTING_IP4_CONFIG_METHOD_SHARED)) {
        /* DNS servers
         * Pick up just IPv4 addresses (IPv6 addresses are taken by make_ip6_setting())
         */
        for (i = 1; i < 10000; i++) {
            NMDnsServer           dns;
            char                  tag[256];
            gs_free_error GError *local = NULL;

            numbered_tag(tag, "DNS", i);
            nm_clear_g_free(&value);
            v = svGetValueStr(ifcfg, tag, &value);
            if (!v)
                break;

            if (!nm_dns_uri_parse(AF_UNSPEC, v, &dns, &local)) {
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Invalid DNS server address '%s': %s",
                            v,
                            local->message);
                return NULL;
            }

            if (dns.addr_family == AF_INET) {
                if (!nm_setting_ip_config_add_dns(s_ip4, v))
                    PARSE_WARNING("duplicate DNS server %s", tag);
            } else {
                /* Ignore IPv6 addresses */
            }
        }

        /* DNS searches */
        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, "DOMAIN", &value);
        if (v) {
            gs_free const char **searches = NULL;

            searches = nm_strsplit_set(v, " ");
            if (searches) {
                for (item = searches; *item; item++) {
                    if (!nm_setting_ip_config_add_dns_search(s_ip4, *item))
                        PARSE_WARNING("duplicate DNS domain '%s'", *item);
                }
            }
        }
    }

    /* DNS options */
    nm_clear_g_free(&value);
    parse_dns_options(s_ip4, svGetValue(ifcfg, "RES_OPTIONS", &value));
    parse_dns_options(s_ip4, dns_options);

    /* DNS priority */
    priority = svGetValueInt64(ifcfg, "IPV4_DNS_PRIORITY", 10, G_MININT32, G_MAXINT32, 0);
    g_object_set(s_ip4, NM_SETTING_IP_CONFIG_DNS_PRIORITY, priority, NULL);

    /* Static routes  - route-<name> file */
    route_path = utils_get_route_path(svFileGetName(ifcfg));

    if (routes_read) {
        gs_free char *contents = NULL;
        gsize         len;

        if (!g_file_get_contents(route_path, &contents, &len, NULL))
            len = 0;

        if (utils_has_route_file_new_syntax_content(contents, len)) {
            nm_auto_shvar_file_close shvarFile *route_ifcfg = NULL;

            /* Parse route file in new syntax */
            route_ifcfg = svFile_new(route_path, -1, contents);
            for (i = 0;; i++) {
                nm_auto_unref_ip_route NMIPRoute *route = NULL;

                if (!read_one_ip4_route(route_ifcfg, i, &route, error))
                    return NULL;

                if (!route)
                    break;

                if (!nm_setting_ip_config_add_route(s_ip4, route))
                    PARSE_WARNING("duplicate IP4 route");
            }
        } else {
            if (!read_route_file_parse(AF_INET, route_path, contents, len, s_ip4, error))
                return NULL;
        }
    }

    /* Legacy value NM used for a while but is incorrect (rh #459370) */
    if (!nm_streq(method, NM_SETTING_IP4_CONFIG_METHOD_SHARED)
        && !nm_setting_ip_config_get_num_dns_searches(s_ip4)) {
        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, "SEARCH", &value);
        if (v) {
            gs_free const char **searches = NULL;

            searches = nm_strsplit_set(v, " ");
            if (searches) {
                for (item = searches; *item; item++) {
                    if (!nm_setting_ip_config_add_dns_search(s_ip4, *item))
                        PARSE_WARNING("duplicate DNS search '%s'", *item);
                }
            }
        }
    }

    i64 = svGetValueInt64(ifcfg, "ACD_TIMEOUT", 10, -1, NM_SETTING_IP_CONFIG_DAD_TIMEOUT_MAX, -2);
    if (i64 == -2) {
        i64 = svGetValueInt64(ifcfg,
                              "ARPING_WAIT",
                              10,
                              -1,
                              NM_SETTING_IP_CONFIG_DAD_TIMEOUT_MAX / 1000,
                              -1);
        if (i64 > 0)
            i64 *= 1000;
    }
    g_object_set(s_ip4, NM_SETTING_IP_CONFIG_DAD_TIMEOUT, (int) i64, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCP_REJECT_SERVERS", &value);
    if (v) {
        gs_free const char **strv = NULL;

        strv = nm_utils_escaped_tokens_split(v, NM_ASCII_SPACES);
        if (strv) {
            for (item = strv; *item; item++)
                nm_setting_ip_config_add_dhcp_reject_server(s_ip4, *item);
        }
    }

    return NM_SETTING(g_steal_pointer(&s_ip4));
}

static void
read_aliases(NMSettingIPConfig *s_ip4, gboolean read_defroute, const char *filename)
{
    GDir         *dir;
    gs_free char *dirname   = NULL;
    gs_free char *base      = NULL;
    NMIPAddress  *base_addr = NULL;
    GError       *err       = NULL;

    g_return_if_fail(s_ip4 != NULL);
    g_return_if_fail(filename != NULL);

    if (nm_setting_ip_config_get_num_addresses(s_ip4) > 0)
        base_addr = nm_setting_ip_config_get_address(s_ip4, 0);

    dirname = g_path_get_dirname(filename);
    nm_assert(dirname != NULL);
    base = g_path_get_basename(filename);
    nm_assert(base != NULL);

    dir = g_dir_open(dirname, 0, &err);
    if (dir) {
        const char  *item;
        NMIPAddress *addr;
        gboolean     ok;

        while ((item = g_dir_read_name(dir))) {
            nm_auto_shvar_file_close shvarFile *parsed       = NULL;
            gs_free char                       *gateway      = NULL;
            gs_free char                       *device_value = NULL;
            gs_free char                       *full_path    = NULL;
            const char                         *device;
            const char                         *p;

            if (!utils_is_ifcfg_alias_file(item, base))
                continue;

            full_path = g_build_filename(dirname, item, NULL);

            p = strchr(item, ':');
            g_assert(p != NULL); /* we know this is true from utils_is_ifcfg_alias_file() */
            for (p++; *p; p++) {
                if (!g_ascii_isalnum(*p) && *p != '_')
                    break;
            }
            if (*p) {
                PARSE_WARNING("ignoring alias file '%s' with invalid name", full_path);
                continue;
            }

            parsed = svOpenFile(full_path, &err);
            if (!parsed) {
                PARSE_WARNING("couldn't parse alias file '%s': %s", full_path, err->message);
                g_clear_error(&err);
                continue;
            }

            svWarnInvalid(parsed, "alias", _NMLOG_DOMAIN);

            device = svGetValueStr(parsed, "DEVICE", &device_value);
            if (!device) {
                PARSE_WARNING("alias file '%s' has no DEVICE", full_path);
                continue;
            }
            /* We know that item starts with IFCFG_TAG from utils_is_ifcfg_alias_file() */
            if (strcmp(device, item + strlen(IFCFG_TAG)) != 0) {
                PARSE_WARNING("alias file '%s' has invalid DEVICE (%s) for filename",
                              full_path,
                              device);
                continue;
            }

            addr = NULL;
            ok   = read_full_ip4_address(parsed,
                                       -1,
                                       base_addr,
                                       &addr,
                                       read_defroute ? &gateway : NULL,
                                       &err);
            if (ok) {
                nm_ip_address_set_attribute(addr,
                                            NM_IP_ADDRESS_ATTRIBUTE_LABEL,
                                            g_variant_new_string(device));
                if (!nm_setting_ip_config_add_address(s_ip4, addr))
                    PARSE_WARNING("duplicate IP4 address in alias file %s", item);
                if (nm_streq0(nm_setting_ip_config_get_method(s_ip4),
                              NM_SETTING_IP4_CONFIG_METHOD_DISABLED))
                    g_object_set(s_ip4,
                                 NM_SETTING_IP_CONFIG_METHOD,
                                 NM_SETTING_IP4_CONFIG_METHOD_MANUAL,
                                 NULL);
                if (read_defroute) {
                    int i;

                    if (gateway) {
                        g_object_set(s_ip4, NM_SETTING_IP_CONFIG_GATEWAY, gateway, NULL);
                        read_defroute = FALSE;
                    }
                    i = svGetValueBoolean(parsed, "DEFROUTE", -1);
                    if (i != -1) {
                        g_object_set(s_ip4,
                                     NM_SETTING_IP_CONFIG_NEVER_DEFAULT,
                                     (gboolean) !i,
                                     NULL);
                        read_defroute = FALSE;
                    }
                }
            } else {
                PARSE_WARNING("error reading IP4 address from alias file '%s': %s",
                              full_path,
                              err ? err->message : "no address");
                g_clear_error(&err);
            }
            nm_ip_address_unref(addr);
        }

        g_dir_close(dir);
    } else {
        PARSE_WARNING("can not read directory '%s': %s", dirname, err->message);
        g_error_free(err);
    }
}

static NMSetting *
make_ip6_setting(shvarFile *ifcfg, shvarFile *network_ifcfg, gboolean routes_read, GError **error)
{
    gs_unref_object NMSettingIPConfig *s_ip6 = NULL;
    const char                        *v;
    gs_free char                      *value = NULL;
    gboolean                           ipv6init;
    gboolean                           ipv6forwarding;
    gboolean                           disabled;
    gboolean                           dhcp6  = FALSE;
    char                              *method = NM_SETTING_IP6_CONFIG_METHOD_MANUAL;
    const char                        *ipv6addr, *ipv6addr_secondaries;
    gs_free char                      *ipv6addr_to_free             = NULL;
    gs_free char                      *ipv6addr_secondaries_to_free = NULL;
    gs_free const char               **list                         = NULL;
    const char *const                 *iter;
    guint32                            i;
    gint64                             i64;
    int                                i_val;
    GError                            *local = NULL;
    int                                priority;
    gboolean                           never_default = FALSE;
    gboolean                           ip6_privacy   = FALSE, ip6_privacy_prefer_public_ip;
    NMSettingIP6ConfigPrivacy          ip6_privacy_val;
    guint32                            route_table;
    gboolean                           is_disabled;

    s_ip6 = (NMSettingIPConfig *) nm_setting_ip6_config_new();

    /* First check if IPV6_DEFROUTE is set for this device; IPV6_DEFROUTE has the
     * opposite meaning from never-default. The default if IPV6_DEFROUTE is not
     * specified is IPV6_DEFROUTE=yes which means that this connection can be used
     * as a default route
     */
    never_default = !svGetValueBoolean(ifcfg, "IPV6_DEFROUTE", TRUE);

    /* Then check if IPV6_DEFAULTGW or IPV6_DEFAULTDEV is specified;
     * they are global and override IPV6_DEFROUTE
     * When both are set, the device specified in IPV6_DEFAULTGW takes preference.
     */
    if (network_ifcfg) {
        const char   *ipv6_defaultgw, *ipv6_defaultdev;
        gs_free char *ipv6_defaultgw_to_free  = NULL;
        gs_free char *ipv6_defaultdev_to_free = NULL;
        const char   *default_dev             = NULL;

        /* Get the connection ifcfg device name and the global default route device */
        nm_clear_g_free(&value);
        v               = svGetValueStr(ifcfg, "DEVICE", &value);
        ipv6_defaultgw  = svGetValueStr(network_ifcfg, "IPV6_DEFAULTGW", &ipv6_defaultgw_to_free);
        ipv6_defaultdev = svGetValueStr(network_ifcfg, "IPV6_DEFAULTDEV", &ipv6_defaultdev_to_free);

        if (ipv6_defaultgw) {
            default_dev = strchr(ipv6_defaultgw, '%');
            if (default_dev)
                default_dev++;
        }
        if (!default_dev)
            default_dev = ipv6_defaultdev;

        /* If there was a global default route device specified, then only connections
         * for that device can be the default connection.
         */
        if (default_dev && v)
            never_default = !!strcmp(v, default_dev);
    }

    /* Find out method property */
    /* Is IPV6 enabled? Set method to "ignored", when not enabled */
    disabled = svGetValueBoolean(ifcfg, "IPV6_DISABLED", FALSE);
    nm_clear_g_free(&value);
    v        = svGetValueStr(ifcfg, "IPV6INIT", &value);
    ipv6init = svGetValueBoolean(ifcfg, "IPV6INIT", FALSE);
    if (!v) {
        if (network_ifcfg)
            ipv6init = svGetValueBoolean(network_ifcfg, "IPV6INIT", FALSE);
    }

    if (disabled)
        method = NM_SETTING_IP6_CONFIG_METHOD_DISABLED;
    else if (!ipv6init)
        method = NM_SETTING_IP6_CONFIG_METHOD_IGNORE;
    else {
        ipv6forwarding = svGetValueBoolean(ifcfg, "IPV6FORWARDING", FALSE);
        nm_clear_g_free(&value);
        v     = svGetValueStr(ifcfg, "IPV6_AUTOCONF", &value);
        dhcp6 = svGetValueBoolean(ifcfg, "DHCPV6C", FALSE);

        if (!g_strcmp0(v, "shared"))
            method = NM_SETTING_IP6_CONFIG_METHOD_SHARED;
        else if (svParseBoolean(v, !ipv6forwarding))
            method = NM_SETTING_IP6_CONFIG_METHOD_AUTO;
        else if (dhcp6)
            method = NM_SETTING_IP6_CONFIG_METHOD_DHCP;
        else {
            /* IPV6_AUTOCONF=no and no IPv6 address -> method 'link-local' */
            nm_clear_g_free(&value);
            v = svGetValueStr(ifcfg, "IPV6ADDR", &value);
            if (!v) {
                nm_clear_g_free(&value);
                v = svGetValueStr(ifcfg, "IPV6ADDR_SECONDARIES", &value);
            }

            if (!v)
                method = NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL;
        }
    }
    /* TODO - handle other methods */

    /* Read IPv6 Privacy Extensions configuration */
    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IPV6_PRIVACY", &value);
    if (v) {
        ip6_privacy = svParseBoolean(v, FALSE);
        if (!ip6_privacy)
            ip6_privacy = (g_strcmp0(v, "rfc4941") == 0) || (g_strcmp0(v, "rfc3041") == 0);
    }
    ip6_privacy_prefer_public_ip = svGetValueBoolean(ifcfg, "IPV6_PRIVACY_PREFER_PUBLIC_IP", FALSE);
    ip6_privacy_val              = v ? (ip6_privacy ? (ip6_privacy_prefer_public_ip
                                                           ? NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_PUBLIC_ADDR
                                                           : NM_SETTING_IP6_CONFIG_PRIVACY_PREFER_TEMP_ADDR)
                                                    : NM_SETTING_IP6_CONFIG_PRIVACY_DISABLED)
                                     : NM_SETTING_IP6_CONFIG_PRIVACY_UNKNOWN;

    /* the route table (policy routing) is ignored if we don't handle routes. */
    route_table = svGetValueInt64(ifcfg, "IPV6_ROUTE_TABLE", 10, 0, G_MAXUINT32, 0);
    if (route_table != 0 && !routes_read) {
        PARSE_WARNING(
            "'rule-' or 'rule6-' files are present; Policy routing (IPV6_ROUTE_TABLE) is ignored");
        route_table = 0;
    }

    g_object_set(s_ip6,
                 NM_SETTING_IP_CONFIG_METHOD,
                 method,
                 NM_SETTING_IP_CONFIG_IGNORE_AUTO_DNS,
                 !svGetValueBoolean(ifcfg, "IPV6_PEERDNS", TRUE),
                 NM_SETTING_IP_CONFIG_IGNORE_AUTO_ROUTES,
                 !svGetValueBoolean(ifcfg, "IPV6_PEERROUTES", TRUE),
                 NM_SETTING_IP_CONFIG_NEVER_DEFAULT,
                 never_default,
                 NM_SETTING_IP_CONFIG_MAY_FAIL,
                 !svGetValueBoolean(ifcfg, "IPV6_FAILURE_FATAL", FALSE),
                 NM_SETTING_IP_CONFIG_ROUTE_METRIC,
                 svGetValueInt64(ifcfg, "IPV6_ROUTE_METRIC", 10, -1, G_MAXUINT32, -1),
                 NM_SETTING_IP_CONFIG_ROUTE_TABLE,
                 (guint) route_table,
                 NM_SETTING_IP6_CONFIG_IP6_PRIVACY,
                 ip6_privacy_val,
                 NM_SETTING_IP_CONFIG_AUTO_ROUTE_EXT_GW,
                 svGetValueTernary(ifcfg, "IPV6_AUTO_ROUTE_EXT_GW"),
                 NM_SETTING_IP_CONFIG_REPLACE_LOCAL_RULE,
                 svGetValueTernary(ifcfg, "IPV6_REPLACE_LOCAL_RULE"),
                 NULL);

    /* Don't bother to read IP, DNS and routes when IPv6 is disabled */
    is_disabled = NM_IN_STRSET(method,
                               NM_SETTING_IP6_CONFIG_METHOD_IGNORE,
                               NM_SETTING_IP6_CONFIG_METHOD_DISABLED);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCPV6_DUID", &value);
    if (v)
        g_object_set(s_ip6, NM_SETTING_IP6_CONFIG_DHCP_DUID, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCPV6_IAID", &value);
    if (v)
        g_object_set(s_ip6, NM_SETTING_IP_CONFIG_DHCP_IAID, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCPV6_PD_HINT", &value);
    if (v)
        g_object_set(s_ip6, NM_SETTING_IP6_CONFIG_DHCP_PD_HINT, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DHCPV6_HOSTNAME", &value);
    /* Use DHCP_HOSTNAME as fallback if it is in FQDN format and ipv6.method is
     * auto or dhcp: this is required to support old ifcfg files
     */
    if (!v
        && (!strcmp(method, NM_SETTING_IP6_CONFIG_METHOD_AUTO)
            || !strcmp(method, NM_SETTING_IP6_CONFIG_METHOD_DHCP))) {
        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, "DHCP_HOSTNAME", &value);
        if (v && !strchr(v, '.'))
            v = NULL;
    }
    if (v)
        g_object_set(s_ip6, NM_SETTING_IP_CONFIG_DHCP_HOSTNAME, v, NULL);

    g_object_set(s_ip6,
                 NM_SETTING_IP_CONFIG_DHCP_SEND_HOSTNAME,
                 svGetValueBoolean(ifcfg, "DHCPV6_SEND_HOSTNAME", TRUE),
                 NM_SETTING_IP_CONFIG_DHCP_TIMEOUT,
                 (int) svGetValueInt64(ifcfg, "IPV6_DHCP_TIMEOUT", 10, 0, G_MAXINT32, 0),
                 NM_SETTING_IP_CONFIG_REQUIRED_TIMEOUT,
                 (int) svGetValueInt64(ifcfg, "IPV6_REQUIRED_TIMEOUT", 10, 0, G_MAXINT32, -1),
                 NM_SETTING_IP6_CONFIG_RA_TIMEOUT,
                 (int) svGetValueInt64(ifcfg, "IPV6_RA_TIMEOUT", 10, 0, G_MAXINT32, 0),
                 NULL);

    i64 = svGetValueInt64(ifcfg, "DHCPV6_HOSTNAME_FLAGS", 10, 0, G_MAXUINT32, -1);
    if (i64 > -1) {
        g_object_set(s_ip6, NM_SETTING_IP_CONFIG_DHCP_HOSTNAME_FLAGS, (guint) i64, NULL);
    }

    /* Read static IP addresses.
     * Read them even for AUTO and DHCP methods - in this case the addresses are
     * added to the automatic ones. Note that this is not currently supported by
     * the legacy 'network' service (ifup-eth).
     */
    ipv6addr = svGetValueStr(ifcfg, "IPV6ADDR", &ipv6addr_to_free);
    ipv6addr_secondaries =
        svGetValueStr(ifcfg, "IPV6ADDR_SECONDARIES", &ipv6addr_secondaries_to_free);

    nm_clear_g_free(&value);
    value = g_strjoin(ipv6addr && ipv6addr_secondaries ? " " : NULL,
                      ipv6addr ?: "",
                      ipv6addr_secondaries ?: "",
                      NULL);

    list = nm_strsplit_set(value, " ");
    if (list) {
        if (is_disabled)
            PARSE_WARNING("ignore IPv6 addresses with method disabled/ignore");
        else {
            for (iter = list, i = 0; *iter; iter++, i++) {
                nm_auto_unref_ip_address NMIPAddress *addr = NULL;

                if (!parse_full_ip6_address(ifcfg, *iter, i, &addr, is_disabled ? NULL : error)) {
                    if (is_disabled)
                        break;
                    return NULL;
                }

                if (!nm_setting_ip_config_add_address(s_ip6, addr))
                    PARSE_WARNING("duplicate IP6 address");
            }
        }
    }

    /* Gateway */
    if (nm_setting_ip_config_get_num_addresses(s_ip6)) {
        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, "IPV6_DEFAULTGW", &value);
        if (!v) {
            /* If no gateway in the ifcfg, try global /etc/sysconfig/network instead */
            if (network_ifcfg) {
                nm_clear_g_free(&value);
                v = svGetValueStr(network_ifcfg, "IPV6_DEFAULTGW", &value);
            }
        }
        if (v) {
            char *ptr;

            if ((ptr = strchr(v, '%')) != NULL)
                *ptr = '\0'; /* remove %interface prefix if present */
            if (!nm_inet_is_valid(AF_INET6, v)) {
                if (!is_disabled) {
                    g_set_error(error,
                                NM_SETTINGS_ERROR,
                                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                "Invalid IP6 address '%s'",
                                v);
                    return NULL;
                }
            } else
                g_object_set(s_ip6, NM_SETTING_IP_CONFIG_GATEWAY, v, NULL);
        }
    }

    /* IPv6 tokenized interface identifier */
    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IPV6_TOKEN", &value);
    if (v)
        g_object_set(s_ip6, NM_SETTING_IP6_CONFIG_TOKEN, v, NULL);

    i_val = NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_DEFAULT_OR_EUI64;
    if (!svGetValueEnum(ifcfg,
                        "IPV6_ADDR_GEN_MODE",
                        nm_setting_ip6_config_addr_gen_mode_get_type(),
                        &i_val,
                        &local)) {
        PARSE_WARNING("%s", local->message);
        g_clear_error(&local);
    } else if (errno == ENOKEY) {
        /* The key is not specified. If "v" (IPV6_TOKEN) is set,
         * we default to EUI64. Otherwise, the connection would not verify. */
        if (v)
            i_val = NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE_EUI64;
    }
    g_object_set(s_ip6, NM_SETTING_IP6_CONFIG_ADDR_GEN_MODE, i_val, NULL);

    /* DNS servers
     * Pick up just IPv6 addresses (IPv4 addresses are taken by make_ip4_setting())
     */
    for (i = 1; i < 10000; i++) {
        gs_free_error GError *err = NULL;
        NMDnsServer           dns;
        char                  tag[256];

        numbered_tag(tag, "DNS", i);
        nm_clear_g_free(&value);
        v = svGetValueStr(ifcfg, tag, &value);
        if (!v)
            break;

        if (!nm_dns_uri_parse(AF_UNSPEC, v, &dns, &err)) {
            if (is_disabled)
                continue;
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid DNS server address '%s': %s",
                        v,
                        err->message);
            return NULL;
        }
        if (dns.addr_family == AF_INET6) {
            if (is_disabled) {
                PARSE_WARNING("ignore DNS server addresses with method disabled/ignore");
                break;
            }
            if (!nm_setting_ip_config_add_dns(s_ip6, v))
                PARSE_WARNING("duplicate DNS server %s", tag);
        } else {
            /* Ignore IPv4 addresses */
        }
    }

    if (!routes_read) {
        /* NOP */
    } else {
        gs_free char *route6_path = NULL;

        /* Read static routes from route6-<interface> file */
        route6_path = utils_get_route6_path(svFileGetName(ifcfg));
        if (!read_route_file(AF_INET6, route6_path, s_ip6, error))
            return NULL;
    }

    /* DNS searches */
    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IPV6_DOMAIN", &value);
    if (v) {
        gs_free const char **searches = NULL;

        searches = nm_strsplit_set(v, " ");
        if (searches) {
            if (is_disabled) {
                PARSE_WARNING("ignore IPV6_DOMAIN with method disabled/ignore");
            } else {
                for (iter = searches; *iter; iter++) {
                    if (!nm_setting_ip_config_add_dns_search(s_ip6, *iter))
                        PARSE_WARNING("duplicate DNS domain '%s'", *iter);
                }
            }
        }
    }

    /* DNS options */
    nm_clear_g_free(&value);
    parse_dns_options(s_ip6, svGetValue(ifcfg, "IPV6_RES_OPTIONS", &value));

    /* DNS priority */
    priority = svGetValueInt64(ifcfg, "IPV6_DNS_PRIORITY", 10, G_MININT32, G_MAXINT32, 0);
    g_object_set(s_ip6, NM_SETTING_IP_CONFIG_DNS_PRIORITY, priority, NULL);

    return NM_SETTING(g_steal_pointer(&s_ip6));
}

static NMSetting *
make_hostname_setting(shvarFile *ifcfg)
{
    NMSetting *setting;
    NMTernary  from_dhcp;
    NMTernary  from_dns_lookup;
    NMTernary  only_from_default;
    int        priority;
    gboolean   has_setting = FALSE;

    priority = svGetValueInt64(ifcfg, "HOSTNAME_PRIORITY", 10, G_MININT32, G_MAXINT32, 0);
    if (!has_setting && errno != ENOKEY)
        has_setting = TRUE;

    from_dhcp = svGetValueTernary(ifcfg, "HOSTNAME_FROM_DHCP");
    if (!has_setting && errno != ENOKEY)
        has_setting = TRUE;

    from_dns_lookup = svGetValueTernary(ifcfg, "HOSTNAME_FROM_DNS_LOOKUP");
    if (!has_setting && errno != ENOKEY)
        has_setting = TRUE;

    only_from_default = svGetValueTernary(ifcfg, "HOSTNAME_ONLY_FROM_DEFAULT");
    if (!has_setting && errno != ENOKEY)
        has_setting = TRUE;

    if (!has_setting)
        return NULL;

    setting = nm_setting_hostname_new();

    g_object_set(setting,
                 NM_SETTING_HOSTNAME_PRIORITY,
                 priority,
                 NM_SETTING_HOSTNAME_FROM_DHCP,
                 from_dhcp,
                 NM_SETTING_HOSTNAME_FROM_DNS_LOOKUP,
                 from_dns_lookup,
                 NM_SETTING_HOSTNAME_ONLY_FROM_DEFAULT,
                 only_from_default,
                 NULL);

    return setting;
}

static NMSetting *
make_sriov_setting(shvarFile *ifcfg)
{
    gs_unref_hashtable GHashTable *keys = NULL;
    gs_unref_ptrarray GPtrArray   *vfs  = NULL;
    int                            autoprobe_drivers;
    NMSettingSriov                *s_sriov;
    gint64                         total_vfs;

    total_vfs = svGetValueInt64(ifcfg, "SRIOV_TOTAL_VFS", 10, 0, G_MAXUINT32, -1);

    autoprobe_drivers = svGetValueInt64(ifcfg,
                                        "SRIOV_AUTOPROBE_DRIVERS",
                                        10,
                                        NM_TERNARY_DEFAULT,
                                        NM_TERNARY_TRUE,
                                        -2);

    keys = svGetKeys(ifcfg, SV_KEY_TYPE_SRIOV_VF);
    if (keys) {
        GHashTableIter iter;
        const char    *key;

        g_hash_table_iter_init(&iter, keys);
        while (g_hash_table_iter_next(&iter, (gpointer *) &key, NULL)) {
            gs_free_error GError *error         = NULL;
            gs_free char         *value_to_free = NULL;
            const char           *value;
            NMSriovVF            *vf;

            nm_assert(g_str_has_prefix(key, "SRIOV_VF"));

            value = svGetValue(ifcfg, key, &value_to_free);
            if (!value)
                continue;

            key += NM_STRLEN("SRIOV_VF");

            vf = _nm_utils_sriov_vf_from_strparts(key, value, TRUE, &error);
            if (!vf) {
                PARSE_WARNING("ignoring invalid SR-IOV VF '%s %s': %s", key, value, error->message);
                continue;
            }
            if (!vfs)
                vfs = g_ptr_array_new_with_free_func((GDestroyNotify) nm_sriov_vf_unref);
            g_ptr_array_add(vfs, vf);
        }
    }

    /* Create the setting when at least one key is set */
    if (total_vfs < 0 && !vfs && autoprobe_drivers < NM_TERNARY_DEFAULT)
        return NULL;

    s_sriov = (NMSettingSriov *) nm_setting_sriov_new();

    autoprobe_drivers = NM_MAX(autoprobe_drivers, NM_TERNARY_DEFAULT);
    total_vfs         = NM_MAX(total_vfs, 0);

    g_object_set(s_sriov,
                 NM_SETTING_SRIOV_TOTAL_VFS,
                 (guint) total_vfs,
                 NM_SETTING_SRIOV_VFS,
                 vfs,
                 NM_SETTING_SRIOV_AUTOPROBE_DRIVERS,
                 autoprobe_drivers,
                 NULL);

    return (NMSetting *) s_sriov;
}

static NMSetting *
make_tc_setting(shvarFile *ifcfg)
{
    NMSettingTCConfig *s_tc = NULL;
    char               tag[256];
    int                i;

    s_tc = (NMSettingTCConfig *) nm_setting_tc_config_new();

    for (i = 1;; i++) {
        NMTCQdisc    *qdisc         = NULL;
        gs_free char *value_to_free = NULL;
        const char   *value         = NULL;
        GError       *local         = NULL;

        value = svGetValueStr(ifcfg, numbered_tag(tag, "QDISC", i), &value_to_free);
        if (!value)
            break;

        qdisc = nm_utils_tc_qdisc_from_str(value, &local);
        if (!qdisc) {
            PARSE_WARNING("ignoring bad tc qdisc: '%s': %s", value, local->message);
            continue;
        }

        if (!nm_setting_tc_config_add_qdisc(s_tc, qdisc))
            PARSE_WARNING("duplicate tc qdisc");

        nm_tc_qdisc_unref(qdisc);
    }

    for (i = 1;; i++) {
        NMTCTfilter          *tfilter       = NULL;
        gs_free char         *value_to_free = NULL;
        const char           *value         = NULL;
        gs_free_error GError *local         = NULL;

        value = svGetValueStr(ifcfg, numbered_tag(tag, "FILTER", i), &value_to_free);
        if (!value)
            break;

        tfilter = nm_utils_tc_tfilter_from_str(value, &local);
        if (!tfilter) {
            PARSE_WARNING("ignoring bad tc filter: '%s': %s", value, local->message);
            continue;
        }

        if (!nm_setting_tc_config_add_tfilter(s_tc, tfilter))
            PARSE_WARNING("duplicate tc filter");

        nm_tc_tfilter_unref(tfilter);
    }

    if (nm_setting_tc_config_get_num_qdiscs(s_tc) > 0
        || nm_setting_tc_config_get_num_tfilters(s_tc) > 0
        || svGetValueBoolean(ifcfg, "TC_COMMIT", FALSE))
        return NM_SETTING(s_tc);

    g_object_unref(s_tc);
    return NULL;
}

typedef struct {
    const char *enable_key;
    const char *advertise_key;
    const char *willing_key;
    const char *flags_prop;
} DcbFlagsProperty;

enum {
    DCB_APP_FCOE_FLAGS  = 0,
    DCB_APP_ISCSI_FLAGS = 1,
    DCB_APP_FIP_FLAGS   = 2,
    DCB_PFC_FLAGS       = 3,
    DCB_PG_FLAGS        = 4,
};

static DcbFlagsProperty dcb_flags_props[] = {
    {KEY_DCB_APP_FCOE_ENABLE,
     KEY_DCB_APP_FCOE_ADVERTISE,
     KEY_DCB_APP_FCOE_WILLING,
     NM_SETTING_DCB_APP_FCOE_FLAGS},
    {KEY_DCB_APP_ISCSI_ENABLE,
     KEY_DCB_APP_ISCSI_ADVERTISE,
     KEY_DCB_APP_ISCSI_WILLING,
     NM_SETTING_DCB_APP_ISCSI_FLAGS},
    {KEY_DCB_APP_FIP_ENABLE,
     KEY_DCB_APP_FIP_ADVERTISE,
     KEY_DCB_APP_FIP_WILLING,
     NM_SETTING_DCB_APP_FIP_FLAGS},
    {KEY_DCB_PFC_ENABLE,
     KEY_DCB_PFC_ADVERTISE,
     KEY_DCB_PFC_WILLING,
     NM_SETTING_DCB_PRIORITY_FLOW_CONTROL_FLAGS},
    {KEY_DCB_PG_ENABLE,
     KEY_DCB_PG_ADVERTISE,
     KEY_DCB_PG_WILLING,
     NM_SETTING_DCB_PRIORITY_GROUP_FLAGS},
    {NULL},
};

static NMSettingDcbFlags
read_dcb_flags(shvarFile *ifcfg, DcbFlagsProperty *property)
{
    NMSettingDcbFlags flags = NM_SETTING_DCB_FLAG_NONE;

    if (svGetValueBoolean(ifcfg, property->enable_key, FALSE))
        flags |= NM_SETTING_DCB_FLAG_ENABLE;
    if (svGetValueBoolean(ifcfg, property->advertise_key, FALSE))
        flags |= NM_SETTING_DCB_FLAG_ADVERTISE;
    if (svGetValueBoolean(ifcfg, property->willing_key, FALSE))
        flags |= NM_SETTING_DCB_FLAG_WILLING;

    return flags;
}

static gboolean
read_dcb_app(shvarFile        *ifcfg,
             NMSettingDcb     *s_dcb,
             const char       *app,
             DcbFlagsProperty *flags_prop,
             const char       *priority_prop,
             GError          **error)
{
    NMSettingDcbFlags flags = NM_SETTING_DCB_FLAG_NONE;
    gs_free char     *value = NULL;
    const char       *v;
    gboolean          success  = TRUE;
    int               priority = -1;
    char              key[255];

    flags = read_dcb_flags(ifcfg, flags_prop);

    /* Priority */
    nm_sprintf_buf(key, "DCB_APP_%s_PRIORITY", app);
    v = svGetValueStr(ifcfg, key, &value);
    if (v) {
        priority = _nm_utils_ascii_str_to_int64(v, 0, 0, 7, -1);
        if (priority < 0) {
            success = FALSE;
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid %s value '%s' (expected 0 - 7)",
                        key,
                        v);
        }

        if (!(flags & NM_SETTING_DCB_FLAG_ENABLE))
            PARSE_WARNING("ignoring DCB %s priority; app not enabled", app);
    }

    if (success) {
        g_object_set(G_OBJECT(s_dcb),
                     flags_prop->flags_prop,
                     flags,
                     priority_prop,
                     (guint) priority,
                     NULL);
    }

    return success;
}

typedef void (*DcbSetBoolFunc)(NMSettingDcb *, guint, gboolean);

static gboolean
read_dcb_bool_array(shvarFile        *ifcfg,
                    NMSettingDcb     *s_dcb,
                    NMSettingDcbFlags flags,
                    const char       *prop,
                    const char       *desc,
                    DcbSetBoolFunc    set_func,
                    GError          **error)
{
    gs_free char *value = NULL;
    const char   *v;
    guint         i;

    v = svGetValueStr(ifcfg, prop, &value);
    if (!v)
        return TRUE;

    if (!(flags & NM_SETTING_DCB_FLAG_ENABLE)) {
        PARSE_WARNING("ignoring %s; %s is not enabled", prop, desc);
        return TRUE;
    }

    if (strlen(v) != 8) {
        PARSE_WARNING("%s value '%s' must be 8 characters long", prop, v);
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "boolean array must be 8 characters");
        return FALSE;
    }

    /* All characters must be either 0 or 1 */
    for (i = 0; i < 8; i++) {
        if (v[i] != '0' && v[i] != '1') {
            PARSE_WARNING("invalid %s value '%s': not all 0s and 1s", prop, v);
            g_set_error_literal(error,
                                NM_SETTINGS_ERROR,
                                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                "invalid boolean digit");
            return FALSE;
        }
        set_func(s_dcb, i, (v[i] == '1'));
    }
    return TRUE;
}

typedef void (*DcbSetUintFunc)(NMSettingDcb *, guint, guint);

static gboolean
read_dcb_uint_array(shvarFile        *ifcfg,
                    NMSettingDcb     *s_dcb,
                    NMSettingDcbFlags flags,
                    const char       *prop,
                    const char       *desc,
                    gboolean          f_allowed,
                    DcbSetUintFunc    set_func,
                    GError          **error)
{
    gs_free char *val = NULL;
    guint         i;

    val = svGetValueStr_cp(ifcfg, prop);
    if (!val)
        return TRUE;

    if (!(flags & NM_SETTING_DCB_FLAG_ENABLE)) {
        PARSE_WARNING("ignoring %s; %s is not enabled", prop, desc);
        return TRUE;
    }

    if (strlen(val) != 8) {
        PARSE_WARNING("%s value '%s' must be 8 characters long", prop, val);
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "uint array must be 8 characters");
        return FALSE;
    }

    /* All characters must be either 0 - 7 or (optionally) f */
    for (i = 0; i < 8; i++) {
        if (val[i] >= '0' && val[i] <= '7')
            set_func(s_dcb, i, val[i] - '0');
        else if (f_allowed && (val[i] == 'f' || val[i] == 'F'))
            set_func(s_dcb, i, 15);
        else {
            PARSE_WARNING("invalid %s value '%s': not 0 - 7%s",
                          prop,
                          val,
                          f_allowed ? " or 'f'" : "");
            g_set_error_literal(error,
                                NM_SETTINGS_ERROR,
                                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                "invalid uint digit");
            return FALSE;
        }
    }

    return TRUE;
}

static gboolean
read_dcb_percent_array(shvarFile        *ifcfg,
                       NMSettingDcb     *s_dcb,
                       NMSettingDcbFlags flags,
                       const char       *prop,
                       const char       *desc,
                       gboolean          sum_pct,
                       DcbSetUintFunc    set_func,
                       GError          **error)
{
    gs_free char        *val   = NULL;
    gs_free const char **split = NULL;
    const char *const   *iter;
    guint                i, sum = 0;

    val = svGetValueStr_cp(ifcfg, prop);
    if (!val)
        return TRUE;

    if (!(flags & NM_SETTING_DCB_FLAG_ENABLE)) {
        PARSE_WARNING("ignoring %s; %s is not enabled", prop, desc);
        return TRUE;
    }

    split = nm_strsplit_set(val, ",");
    if (NM_PTRARRAY_LEN(split) != 8) {
        PARSE_WARNING("invalid %s percentage list value '%s'", prop, val);
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "percent array must be 8 elements");
        return FALSE;
    }

    for (iter = split, i = 0; iter && *iter; iter++, i++) {
        int tmp;

        tmp = _nm_utils_ascii_str_to_int64(*iter, 0, 0, 100, -1);
        if (tmp < 0) {
            PARSE_WARNING("invalid %s percentage value '%s'", prop, *iter);
            g_set_error_literal(error,
                                NM_SETTINGS_ERROR,
                                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                "invalid percent element");
            return FALSE;
        }
        set_func(s_dcb, i, (guint) tmp);
        sum += (guint) tmp;
    }

    if (sum_pct && (sum != 100)) {
        PARSE_WARNING("%s percentages do not equal 100%%", prop);
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "invalid percentage sum");
        return FALSE;
    }

    return TRUE;
}

static gboolean
make_dcb_setting(shvarFile *ifcfg, NMSetting **out_setting, GError **error)
{
    gs_unref_object NMSettingDcb *s_dcb = NULL;
    gboolean                      dcb_on;
    NMSettingDcbFlags             flags = NM_SETTING_DCB_FLAG_NONE;
    gs_free char                 *val   = NULL;

    g_return_val_if_fail(out_setting, FALSE);
    *out_setting = NULL;

    dcb_on = !!svGetValueBoolean(ifcfg, "DCB", FALSE);
    if (!dcb_on)
        return TRUE;

    s_dcb = (NMSettingDcb *) nm_setting_dcb_new();

    /* FCOE */
    if (!read_dcb_app(ifcfg,
                      s_dcb,
                      "FCOE",
                      &dcb_flags_props[DCB_APP_FCOE_FLAGS],
                      NM_SETTING_DCB_APP_FCOE_PRIORITY,
                      error)) {
        return FALSE;
    }

    val = svGetValueStr_cp(ifcfg, KEY_DCB_APP_FCOE_MODE);
    if (val) {
        if (NM_IN_STRSET(val, NM_SETTING_DCB_FCOE_MODE_FABRIC, NM_SETTING_DCB_FCOE_MODE_VN2VN))
            g_object_set(G_OBJECT(s_dcb), NM_SETTING_DCB_APP_FCOE_MODE, val, NULL);
        else {
            PARSE_WARNING("invalid FCoE mode '%s'", val);
            g_set_error_literal(error,
                                NM_SETTINGS_ERROR,
                                NM_SETTINGS_ERROR_INVALID_CONNECTION,
                                "invalid FCoE mode");
            return FALSE;
        }
    }

    /* iSCSI */
    if (!read_dcb_app(ifcfg,
                      s_dcb,
                      "ISCSI",
                      &dcb_flags_props[DCB_APP_ISCSI_FLAGS],
                      NM_SETTING_DCB_APP_ISCSI_PRIORITY,
                      error)) {
        return FALSE;
    }

    /* FIP */
    if (!read_dcb_app(ifcfg,
                      s_dcb,
                      "FIP",
                      &dcb_flags_props[DCB_APP_FIP_FLAGS],
                      NM_SETTING_DCB_APP_FIP_PRIORITY,
                      error)) {
        return FALSE;
    }

    /* Priority Flow Control */
    flags = read_dcb_flags(ifcfg, &dcb_flags_props[DCB_PFC_FLAGS]);
    g_object_set(G_OBJECT(s_dcb), NM_SETTING_DCB_PRIORITY_FLOW_CONTROL_FLAGS, flags, NULL);

    if (!read_dcb_bool_array(ifcfg,
                             s_dcb,
                             flags,
                             KEY_DCB_PFC_UP,
                             "PFC",
                             nm_setting_dcb_set_priority_flow_control,
                             error)) {
        return FALSE;
    }

    /* Priority Groups */
    flags = read_dcb_flags(ifcfg, &dcb_flags_props[DCB_PG_FLAGS]);
    g_object_set(G_OBJECT(s_dcb), NM_SETTING_DCB_PRIORITY_GROUP_FLAGS, flags, NULL);

    if (!read_dcb_uint_array(ifcfg,
                             s_dcb,
                             flags,
                             KEY_DCB_PG_ID,
                             "PGID",
                             TRUE,
                             nm_setting_dcb_set_priority_group_id,
                             error)) {
        return FALSE;
    }

    /* Group bandwidth */
    if (!read_dcb_percent_array(ifcfg,
                                s_dcb,
                                flags,
                                KEY_DCB_PG_PCT,
                                "PGPCT",
                                TRUE,
                                nm_setting_dcb_set_priority_group_bandwidth,
                                error)) {
        return FALSE;
    }

    /* Priority bandwidth */
    if (!read_dcb_percent_array(ifcfg,
                                s_dcb,
                                flags,
                                KEY_DCB_PG_UPPCT,
                                "UPPCT",
                                FALSE,
                                nm_setting_dcb_set_priority_bandwidth,
                                error)) {
        return FALSE;
    }

    /* Strict Bandwidth */
    if (!read_dcb_bool_array(ifcfg,
                             s_dcb,
                             flags,
                             KEY_DCB_PG_STRICT,
                             "STRICT",
                             nm_setting_dcb_set_priority_strict_bandwidth,
                             error)) {
        return FALSE;
    }

    if (!read_dcb_uint_array(ifcfg,
                             s_dcb,
                             flags,
                             KEY_DCB_PG_UP2TC,
                             "UP2TC",
                             FALSE,
                             nm_setting_dcb_set_priority_traffic_class,
                             error)) {
        return FALSE;
    }

    *out_setting = NM_SETTING(g_steal_pointer(&s_dcb));
    return TRUE;
}

static gboolean
add_one_wep_key(shvarFile                 *ifcfg,
                const char                *shvar_key,
                guint8                     key_idx,
                gboolean                   passphrase,
                NMSettingWirelessSecurity *s_wsec,
                GError                   **error)
{
    gs_free char *value_free = NULL;
    const char   *value;
    const char   *key = NULL;

    g_return_val_if_fail(ifcfg != NULL, FALSE);
    g_return_val_if_fail(shvar_key != NULL, FALSE);
    g_return_val_if_fail(key_idx <= 3, FALSE);
    g_return_val_if_fail(s_wsec != NULL, FALSE);

    value = svGetValueStr(ifcfg, shvar_key, &value_free);
    if (!value)
        return TRUE;

    /* Validate keys */
    if (passphrase) {
        if (value[0] && strlen(value) < 64)
            key = value;
    } else {
        if (NM_IN_SET(strlen(value), 10, 26)) {
            /* Hexadecimal WEP key */
            if (NM_STRCHAR_ANY(value, ch, !g_ascii_isxdigit(ch))) {
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Invalid hexadecimal WEP key");
                return FALSE;
            }
            key = value;
        } else if (!strncmp(value, "s:", 2) && NM_IN_SET(strlen(value), 7, 15)) {
            /* ASCII key */
            if (NM_STRCHAR_ANY(value + 2, ch, !g_ascii_isprint(ch))) {
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Invalid ASCII WEP key");
                return FALSE;
            }

            /* Remove 's:' prefix.
             * Don't convert to hex string. wpa_supplicant takes 'wep_key0' option over D-Bus as byte array
             * and converts it to hex string itself. Even though we convert hex string keys into a bin string
             * before passing to wpa_supplicant, this prevents two unnecessary conversions. And mainly,
             * ASCII WEP key doesn't change to HEX WEP key in UI, which could confuse users.
             */
            key = value + 2;
        }
    }

    if (!key) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Invalid WEP key length");
        return FALSE;
    }

    nm_setting_wireless_security_set_wep_key(s_wsec, key_idx, key);
    return TRUE;
}

static gboolean
read_wep_keys(shvarFile                 *ifcfg,
              NMWepKeyType               key_type,
              guint8                     def_idx,
              NMSettingWirelessSecurity *s_wsec,
              GError                   **error)
{
    if (key_type != NM_WEP_KEY_TYPE_PASSPHRASE) {
        if (!add_one_wep_key(ifcfg, "KEY1", 0, FALSE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY2", 1, FALSE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY3", 2, FALSE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY4", 3, FALSE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY", def_idx, FALSE, s_wsec, error))
            return FALSE;
    }

    if (key_type != NM_WEP_KEY_TYPE_KEY) {
        if (!add_one_wep_key(ifcfg, "KEY_PASSPHRASE1", 0, TRUE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY_PASSPHRASE2", 1, TRUE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY_PASSPHRASE3", 2, TRUE, s_wsec, error))
            return FALSE;
        if (!add_one_wep_key(ifcfg, "KEY_PASSPHRASE4", 3, TRUE, s_wsec, error))
            return FALSE;
    }

    return TRUE;
}

static NMSetting *
make_wep_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    gs_unref_object NMSettingWirelessSecurity *s_wsec          = NULL;
    gs_free char                              *value           = NULL;
    shvarFile                                 *keys_ifcfg      = NULL;
    int                                        default_key_idx = 0;
    gboolean                                   has_default_key = FALSE;
    NMSettingSecretFlags                       key_flags;

    s_wsec = NM_SETTING_WIRELESS_SECURITY(nm_setting_wireless_security_new());
    g_object_set(s_wsec, NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, "none", NULL);

    value = svGetValueStr_cp(ifcfg, "DEFAULTKEY");
    if (value) {
        default_key_idx = _nm_utils_ascii_str_to_int64(value, 0, 1, 4, 0);
        if (default_key_idx == 0) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid default WEP key '%s'",
                        value);
            return NULL;
        }
        has_default_key = TRUE;
        default_key_idx--; /* convert to [0...3] */
        g_object_set(s_wsec,
                     NM_SETTING_WIRELESS_SECURITY_WEP_TX_KEYIDX,
                     (guint) default_key_idx,
                     NULL);
        nm_clear_g_free(&value);
    }

    /* Read WEP key flags */
    key_flags = _secret_read_ifcfg_flags(ifcfg, "WEP_KEY_FLAGS");
    g_object_set(s_wsec, NM_SETTING_WIRELESS_SECURITY_WEP_KEY_FLAGS, key_flags, NULL);

    /* Read keys in the ifcfg file if they are system-owned */
    if (key_flags == NM_SETTING_SECRET_FLAG_NONE) {
        NMWepKeyType  key_type;
        const char   *v;
        gs_free char *to_free = NULL;

        v = svGetValueStr(ifcfg, "KEY_TYPE", &to_free);
        if (!v)
            key_type = NM_WEP_KEY_TYPE_UNKNOWN;
        else if (nm_streq(v, "key"))
            key_type = NM_WEP_KEY_TYPE_KEY;
        else if (nm_streq(v, "passphrase"))
            key_type = NM_WEP_KEY_TYPE_PASSPHRASE;
        else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid KEY_TYPE value '%s'",
                        v);
            return FALSE;
        }

        if (!read_wep_keys(ifcfg, key_type, default_key_idx, s_wsec, error))
            return NULL;

        /* Try to get keys from the "shadow" key file */
        keys_ifcfg = utils_get_keys_ifcfg(file, FALSE);
        if (keys_ifcfg) {
            if (!read_wep_keys(keys_ifcfg, key_type, default_key_idx, s_wsec, error)) {
                svCloseFile(keys_ifcfg);
                return NULL;
            }
            svCloseFile(keys_ifcfg);
            g_assert(error == NULL || *error == NULL);
        }

        g_object_set(G_OBJECT(s_wsec), NM_SETTING_WIRELESS_SECURITY_WEP_KEY_TYPE, key_type, NULL);
    }

    value = svGetValueStr_cp(ifcfg, "SECURITYMODE");
    if (value) {
        gs_free char *lcase = NULL;

        lcase = g_ascii_strdown(value, -1);
        nm_clear_g_free(&value);

        if (nm_streq(lcase, "open")) {
            g_object_set(s_wsec, NM_SETTING_WIRELESS_SECURITY_AUTH_ALG, "open", NULL);
        } else if (nm_streq(lcase, "restricted")) {
            g_object_set(s_wsec, NM_SETTING_WIRELESS_SECURITY_AUTH_ALG, "shared", NULL);
        } else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid WEP authentication algorithm '%s'",
                        lcase);
            return NULL;
        }
    }

    /* If no WEP keys were given, and the keys are not agent-owned, and no
     * default WEP key index was given, then the connection is unencrypted.
     */
    if (!nm_setting_wireless_security_get_wep_key(s_wsec, 0)
        && !nm_setting_wireless_security_get_wep_key(s_wsec, 1)
        && !nm_setting_wireless_security_get_wep_key(s_wsec, 2)
        && !nm_setting_wireless_security_get_wep_key(s_wsec, 3) && (has_default_key == FALSE)
        && (key_flags == NM_SETTING_SECRET_FLAG_NONE)) {
        const char *auth_alg;

        auth_alg = nm_setting_wireless_security_get_auth_alg(s_wsec);
        if (auth_alg && !strcmp(auth_alg, "shared")) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "WEP Shared Key authentication is invalid for "
                        "unencrypted connections");
            return NULL;
        }

        /* Unencrypted */
        return NULL;
    }

    return NM_SETTING(g_steal_pointer(&s_wsec));
}

static gboolean
fill_wpa_ciphers(shvarFile *ifcfg, NMSettingWirelessSecurity *wsec, gboolean group, gboolean adhoc)
{
    gs_free char        *value = NULL;
    const char          *p;
    gs_free const char **list = NULL;
    const char *const   *iter;
    int                  i = 0;

    p = svGetValueStr(ifcfg, group ? "CIPHER_GROUP" : "CIPHER_PAIRWISE", &value);
    if (!p)
        return TRUE;

    list = nm_strsplit_set(p, " ");
    for (iter = list; iter && *iter; iter++, i++) {
        if (!strcmp(*iter, "CCMP")) {
            if (group)
                nm_setting_wireless_security_add_group(wsec, "ccmp");
            else
                nm_setting_wireless_security_add_pairwise(wsec, "ccmp");
        } else if (!strcmp(*iter, "TKIP")) {
            if (group)
                nm_setting_wireless_security_add_group(wsec, "tkip");
            else
                nm_setting_wireless_security_add_pairwise(wsec, "tkip");
        } else if (group && !strcmp(*iter, "WEP104"))
            nm_setting_wireless_security_add_group(wsec, "wep104");
        else if (group && !strcmp(*iter, "WEP40"))
            nm_setting_wireless_security_add_group(wsec, "wep40");
        else {
            PARSE_WARNING("ignoring invalid %s cipher '%s'",
                          group ? "CIPHER_GROUP" : "CIPHER_PAIRWISE",
                          *iter);
        }
    }

    return TRUE;
}

#define WPA_PMK_LEN 32

static char *
parse_wpa_psk(shvarFile *ifcfg, const char *file, GBytes *ssid, GError **error)
{
    shvarFile    *keys_ifcfg;
    gs_free char *psk = NULL;
    size_t        plen;

    /* Passphrase must be between 10 and 66 characters in length because WPA
     * hex keys are exactly 64 characters (no quoting), and WPA passphrases
     * are between 8 and 63 characters (inclusive), plus optional quoting if
     * the passphrase contains spaces.
     */

    /* Try to get keys from the "shadow" key file */
    keys_ifcfg = utils_get_keys_ifcfg(file, FALSE);
    if (keys_ifcfg) {
        psk = svGetValueStr_cp(keys_ifcfg, "WPA_PSK");
        svCloseFile(keys_ifcfg);
    }

    /* Fall back to the original ifcfg */
    if (!psk)
        psk = svGetValueStr_cp(ifcfg, "WPA_PSK");

    if (!psk)
        return NULL;

    plen = strlen(psk);

    if (plen == 64) {
        /* Verify the hex PSK; 64 digits */
        if (!NM_STRCHAR_ALL(psk, ch, g_ascii_isxdigit(ch))) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid WPA_PSK (contains non-hexadecimal characters)");
            return NULL;
        }
    } else {
        if (plen < 8 || plen > 63) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid WPA_PSK (passphrases must be between "
                        "8 and 63 characters long (inclusive))");
            return NULL;
        }
    }

    return g_steal_pointer(&psk);
}

static gboolean
eap_simple_reader(const char     *eap_method,
                  shvarFile      *ifcfg,
                  shvarFile      *keys_ifcfg,
                  NMSetting8021x *s_8021x,
                  gboolean        phase2,
                  GError        **error)
{
    NMSettingSecretFlags      flags;
    gs_free char             *identity_free      = NULL;
    nm_auto_free_secret char *password_raw_str   = NULL;
    gs_unref_bytes GBytes    *password_raw_bytes = NULL;

    g_object_set(s_8021x,
                 NM_SETTING_802_1X_IDENTITY,
                 svGetValueStr(ifcfg, "IEEE_8021X_IDENTITY", &identity_free),
                 NULL);

    _secret_set_from_ifcfg(s_8021x,
                           ifcfg,
                           keys_ifcfg,
                           "IEEE_8021X_PASSWORD",
                           NM_SETTING_802_1X_PASSWORD);

    _secret_read_ifcfg(ifcfg, keys_ifcfg, "IEEE_8021X_PASSWORD_RAW", &password_raw_str, &flags);
    if (!_secret_password_raw_to_bytes("IEEE_8021X_PASSWORD_RAW",
                                       password_raw_str,
                                       &password_raw_bytes,
                                       error))
        return FALSE;

    g_object_set(s_8021x,
                 NM_SETTING_802_1X_PASSWORD_RAW_FLAGS,
                 flags,
                 NM_SETTING_802_1X_PASSWORD_RAW,
                 password_raw_bytes,
                 NULL);

    return TRUE;
}

static gboolean
eap_tls_reader(const char     *eap_method,
               shvarFile      *ifcfg,
               shvarFile      *keys_ifcfg,
               NMSetting8021x *s_8021x,
               gboolean        phase2,
               GError        **error)
{
    gs_unref_bytes GBytes *privkey       = NULL;
    gs_unref_bytes GBytes *client_cert   = NULL;
    gs_free char          *identity_free = NULL;
    gs_free char          *value_to_free = NULL;
    const char            *client_cert_var;
    const char            *client_cert_prop;
    NMSetting8021xCKFormat format;

    g_object_set(s_8021x,
                 NM_SETTING_802_1X_IDENTITY,
                 svGetValueStr(ifcfg, "IEEE_8021X_IDENTITY", &identity_free),
                 NULL);

    /* CA certificate */
    if (!_cert_set_from_ifcfg(s_8021x,
                              ifcfg,
                              phase2 ? "IEEE_8021X_INNER_CA_CERT" : "IEEE_8021X_CA_CERT",
                              phase2 ? NM_SETTING_802_1X_PHASE2_CA_CERT : NM_SETTING_802_1X_CA_CERT,
                              NULL,
                              error))
        return FALSE;
    _secret_set_from_ifcfg(
        s_8021x,
        ifcfg,
        keys_ifcfg,
        phase2 ? "IEEE_8021X_INNER_CA_CERT_PASSWORD" : "IEEE_8021X_CA_CERT_PASSWORD",
        phase2 ? NM_SETTING_802_1X_PHASE2_CA_CERT_PASSWORD : NM_SETTING_802_1X_CA_CERT_PASSWORD);

    /* Private key */
    if (!_cert_set_from_ifcfg(s_8021x,
                              ifcfg,
                              phase2 ? "IEEE_8021X_INNER_PRIVATE_KEY" : "IEEE_8021X_PRIVATE_KEY",
                              phase2 ? NM_SETTING_802_1X_PHASE2_PRIVATE_KEY
                                     : NM_SETTING_802_1X_PRIVATE_KEY,
                              &privkey,
                              error))
        return FALSE;
    _secret_set_from_ifcfg(s_8021x,
                           ifcfg,
                           keys_ifcfg,
                           phase2 ? "IEEE_8021X_INNER_PRIVATE_KEY_PASSWORD"
                                  : "IEEE_8021X_PRIVATE_KEY_PASSWORD",
                           phase2 ? NM_SETTING_802_1X_PHASE2_PRIVATE_KEY_PASSWORD
                                  : NM_SETTING_802_1X_PRIVATE_KEY_PASSWORD);

    /* Client certificate */
    client_cert_var = phase2 ? "IEEE_8021X_INNER_CLIENT_CERT" : "IEEE_8021X_CLIENT_CERT";
    client_cert_prop =
        phase2 ? NM_SETTING_802_1X_PHASE2_CLIENT_CERT : NM_SETTING_802_1X_CLIENT_CERT;
    if (!_cert_set_from_ifcfg(s_8021x,
                              ifcfg,
                              client_cert_var,
                              client_cert_prop,
                              &client_cert,
                              error))
        return FALSE;
    _secret_set_from_ifcfg(s_8021x,
                           ifcfg,
                           keys_ifcfg,
                           phase2 ? "IEEE_8021X_INNER_CLIENT_CERT_PASSWORD"
                                  : "IEEE_8021X_CLIENT_CERT_PASSWORD",
                           phase2 ? NM_SETTING_802_1X_PHASE2_CLIENT_CERT_PASSWORD
                                  : NM_SETTING_802_1X_CLIENT_CERT_PASSWORD);

    /* In the past when the private key and client certificate
     * were the same PKCS #12 file we used to write only the
     * private key variable. Still support that even if it means
     * that we have to look into the file content, which makes
     * the connection not self-contained.
     */
    if (!client_cert && privkey && !svGetValue(ifcfg, client_cert_var, &value_to_free)) {
        if (phase2)
            format = nm_setting_802_1x_get_phase2_private_key_format(s_8021x);
        else
            format = nm_setting_802_1x_get_private_key_format(s_8021x);

        if (format == NM_SETTING_802_1X_CK_FORMAT_PKCS12)
            g_object_set(s_8021x, client_cert_prop, privkey, NULL);
    }

    return TRUE;
}

static gboolean
parse_8021x_phase2_auth(shvarFile      *ifcfg,
                        shvarFile      *keys_ifcfg,
                        NMSetting8021x *s_8021x,
                        GError        **error)
{
    gs_free char        *inner_auth = NULL;
    gs_free char        *v_free     = NULL;
    const char          *v;
    gs_free const char **list = NULL;
    const char *const   *iter;
    guint                num_auth    = 0;
    guint                num_autheap = 0;

    v = svGetValueStr(ifcfg, "IEEE_8021X_INNER_AUTH_METHODS", &v_free);
    if (!v) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Missing IEEE_8021X_INNER_AUTH_METHODS");
        return FALSE;
    }

    inner_auth = g_ascii_strdown(v, -1);
    list       = nm_strsplit_set(inner_auth, " ");
    for (iter = list; iter && *iter; iter++) {
        if (NM_IN_STRSET(*iter, "pap", "chap", "mschap", "mschapv2", "gtc", "otp", "md5")) {
            if (num_auth == 0) {
                if (!eap_simple_reader(*iter, ifcfg, keys_ifcfg, s_8021x, TRUE, error))
                    return FALSE;
                g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_AUTH, *iter, NULL);
            }
            num_auth++;
        } else if (nm_streq(*iter, "tls")) {
            if (num_auth == 0) {
                if (!eap_tls_reader(*iter, ifcfg, keys_ifcfg, s_8021x, TRUE, error))
                    return FALSE;
                g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_AUTH, "tls", NULL);
            }
            num_auth++;
        } else if (NM_IN_STRSET(*iter, "eap-md5", "eap-mschapv2", "eap-otp", "eap-gtc")) {
            if (num_autheap == 0) {
                if (!eap_simple_reader(*iter, ifcfg, keys_ifcfg, s_8021x, TRUE, error))
                    return FALSE;
                g_object_set(s_8021x,
                             NM_SETTING_802_1X_PHASE2_AUTHEAP,
                             (*iter + NM_STRLEN("eap-")),
                             NULL);
            }
            num_autheap++;
        } else if (nm_streq(*iter, "eap-tls")) {
            if (num_autheap == 0) {
                if (!eap_tls_reader(*iter, ifcfg, keys_ifcfg, s_8021x, TRUE, error))
                    return FALSE;
                g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_AUTHEAP, "tls", NULL);
            }
            num_autheap++;
        } else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Unknown IEEE_8021X_INNER_AUTH_METHOD '%s'",
                        *iter);
            return FALSE;
        }
    }

    if (num_auth > 1)
        PARSE_WARNING("Discarded extra phase2 authentication methods");
    if (num_auth > 1)
        PARSE_WARNING("Discarded extra phase2 EAP authentication methods");

    if (!num_auth && !num_autheap) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "No phase2 authentication method found");
        return FALSE;
    }

    return TRUE;
}

static gboolean
eap_peap_reader(const char     *eap_method,
                shvarFile      *ifcfg,
                shvarFile      *keys_ifcfg,
                NMSetting8021x *s_8021x,
                gboolean        phase2,
                GError        **error)
{
    gs_free char *value = NULL;
    const char   *v;

    if (!_cert_set_from_ifcfg(s_8021x,
                              ifcfg,
                              "IEEE_8021X_CA_CERT",
                              NM_SETTING_802_1X_CA_CERT,
                              NULL,
                              error))
        return FALSE;
    _secret_set_from_ifcfg(s_8021x,
                           ifcfg,
                           keys_ifcfg,
                           "IEEE_8021X_CA_CERT_PASSWORD",
                           NM_SETTING_802_1X_CA_CERT_PASSWORD);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_PEAP_VERSION", &value);
    if (v) {
        if (!strcmp(v, "0"))
            g_object_set(s_8021x, NM_SETTING_802_1X_PHASE1_PEAPVER, "0", NULL);
        else if (!strcmp(v, "1"))
            g_object_set(s_8021x, NM_SETTING_802_1X_PHASE1_PEAPVER, "1", NULL);
        else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Unknown IEEE_8021X_PEAP_VERSION value '%s'",
                        v);
            return FALSE;
        }
    }

    if (svGetValueBoolean(ifcfg, "IEEE_8021X_PEAP_FORCE_NEW_LABEL", FALSE))
        g_object_set(s_8021x, NM_SETTING_802_1X_PHASE1_PEAPLABEL, "1", NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_ANON_IDENTITY", &value);
    if (v)
        g_object_set(s_8021x, NM_SETTING_802_1X_ANONYMOUS_IDENTITY, v, NULL);

    if (!parse_8021x_phase2_auth(ifcfg, keys_ifcfg, s_8021x, error))
        return FALSE;

    return TRUE;
}

static gboolean
eap_ttls_reader(const char     *eap_method,
                shvarFile      *ifcfg,
                shvarFile      *keys_ifcfg,
                NMSetting8021x *s_8021x,
                gboolean        phase2,
                GError        **error)
{
    gs_free char *value = NULL;
    const char   *v;

    if (!_cert_set_from_ifcfg(s_8021x,
                              ifcfg,
                              "IEEE_8021X_CA_CERT",
                              NM_SETTING_802_1X_CA_CERT,
                              NULL,
                              error))
        return FALSE;
    _secret_set_from_ifcfg(s_8021x,
                           ifcfg,
                           keys_ifcfg,
                           "IEEE_8021X_CA_CERT_PASSWORD",
                           NM_SETTING_802_1X_CA_CERT_PASSWORD);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_ANON_IDENTITY", &value);
    if (v)
        g_object_set(s_8021x, NM_SETTING_802_1X_ANONYMOUS_IDENTITY, v, NULL);

    if (!parse_8021x_phase2_auth(ifcfg, keys_ifcfg, s_8021x, error))
        return FALSE;

    return TRUE;
}

static gboolean
eap_fast_reader(const char     *eap_method,
                shvarFile      *ifcfg,
                shvarFile      *keys_ifcfg,
                NMSetting8021x *s_8021x,
                gboolean        phase2,
                GError        **error)
{
    gs_free char      *anon_ident        = NULL;
    gs_free char      *pac_file          = NULL;
    gs_free char      *real_pac_path     = NULL;
    gs_free char      *fast_provisioning = NULL;
    const char *const *iter;
    const char        *pac_prov_str;
    gboolean           allow_unauth = FALSE, allow_auth = FALSE;

    pac_file = svGetValueStr_cp(ifcfg, "IEEE_8021X_PAC_FILE");
    if (pac_file) {
        real_pac_path = get_full_file_path(svFileGetName(ifcfg), pac_file);
        g_object_set(s_8021x, NM_SETTING_802_1X_PAC_FILE, real_pac_path, NULL);
    }

    fast_provisioning = svGetValueStr_cp(ifcfg, "IEEE_8021X_FAST_PROVISIONING");
    if (fast_provisioning) {
        gs_free const char **list = NULL;

        list = nm_strsplit_set(fast_provisioning, " \t");
        for (iter = list; iter && *iter; iter++) {
            if (strcmp(*iter, "allow-unauth") == 0)
                allow_unauth = TRUE;
            else if (strcmp(*iter, "allow-auth") == 0)
                allow_auth = TRUE;
            else {
                PARSE_WARNING(
                    "invalid IEEE_8021X_FAST_PROVISIONING '%s' "
                    "(space-separated list of these values [allow-auth, allow-unauth] expected)",
                    *iter);
            }
        }
    }
    pac_prov_str = allow_unauth ? (allow_auth ? "3" : "1") : (allow_auth ? "2" : "0");
    g_object_set(s_8021x, NM_SETTING_802_1X_PHASE1_FAST_PROVISIONING, pac_prov_str, NULL);

    if (!pac_file && !(allow_unauth || allow_auth)) {
        g_set_error(
            error,
            NM_SETTINGS_ERROR,
            NM_SETTINGS_ERROR_INVALID_CONNECTION,
            "IEEE_8021X_PAC_FILE not provided and EAP-FAST automatic PAC provisioning disabled");
        return FALSE;
    }

    anon_ident = svGetValueStr_cp(ifcfg, "IEEE_8021X_ANON_IDENTITY");
    if (anon_ident)
        g_object_set(s_8021x, NM_SETTING_802_1X_ANONYMOUS_IDENTITY, anon_ident, NULL);

    if (!parse_8021x_phase2_auth(ifcfg, keys_ifcfg, s_8021x, error))
        return FALSE;

    return TRUE;
}

typedef struct {
    const char *method;
    gboolean (*reader)(const char     *eap_method,
                       shvarFile      *ifcfg,
                       shvarFile      *keys_ifcfg,
                       NMSetting8021x *s_8021x,
                       gboolean        phase2,
                       GError        **error);
    gboolean wifi_phase2_only;
} EAPReader;

static EAPReader eap_readers[] = {{"md5", eap_simple_reader, TRUE},
                                  {"pap", eap_simple_reader, TRUE},
                                  {"chap", eap_simple_reader, TRUE},
                                  {"mschap", eap_simple_reader, TRUE},
                                  {"mschapv2", eap_simple_reader, TRUE},
                                  {"leap", eap_simple_reader, FALSE},
                                  {"pwd", eap_simple_reader, FALSE},
                                  {"tls", eap_tls_reader, FALSE},
                                  {"peap", eap_peap_reader, FALSE},
                                  {"ttls", eap_ttls_reader, FALSE},
                                  {"fast", eap_fast_reader, FALSE},
                                  {NULL, NULL}};

static void
read_8021x_list_value(shvarFile      *ifcfg,
                      const char     *ifcfg_var_name,
                      NMSetting8021x *setting,
                      const char     *prop_name)
{
    gs_free char        *value = NULL;
    gs_free const char **strv  = NULL;
    const char          *v;

    g_return_if_fail(ifcfg != NULL);
    g_return_if_fail(ifcfg_var_name != NULL);
    g_return_if_fail(prop_name != NULL);

    v = svGetValueStr(ifcfg, ifcfg_var_name, &value);
    if (!v)
        return;

    strv = nm_strsplit_set(v, " \t");
    if (strv)
        g_object_set(setting, prop_name, strv, NULL);
}

static NMSetting8021x *
fill_8021x(shvarFile *ifcfg, const char *file, const char *key_mgmt, gboolean wifi, GError **error)
{
    nm_auto_shvar_file_close shvarFile *keys_ifcfg = NULL;
    gs_unref_object NMSetting8021x     *s_8021x    = NULL;
    gs_free char                       *value      = NULL;
    const char                         *v;
    gs_free const char                **list = NULL;
    const char *const                  *iter;
    gint64                              timeout;
    int                                 i_val;

    v = svGetValueStr(ifcfg, "IEEE_8021X_EAP_METHODS", &value);
    if (!v) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Missing IEEE_8021X_EAP_METHODS for key management '%s'",
                    key_mgmt);
        return NULL;
    }

    list = nm_strsplit_set(v, " ");

    s_8021x = (NMSetting8021x *) nm_setting_802_1x_new();

    /* Read in the lookaside keys_ifcfg file, if present */
    keys_ifcfg = utils_get_keys_ifcfg(file, FALSE);

    /* Validate and handle each EAP method */
    for (iter = list; iter && *iter; iter++) {
        EAPReader    *eap   = &eap_readers[0];
        gboolean      found = FALSE;
        gs_free char *lower = NULL;

        lower = g_ascii_strdown(*iter, -1);
        while (eap->method) {
            if (strcmp(eap->method, lower))
                goto next;

            /* Some EAP methods don't provide keying material, thus they
             * cannot be used with Wi-Fi unless they are an inner method
             * used with TTLS or PEAP or whatever.
             */
            if (wifi && eap->wifi_phase2_only) {
                PARSE_WARNING("ignored invalid IEEE_8021X_EAP_METHOD '%s'; not allowed for wifi",
                              lower);
                goto next;
            }

            /* Parse EAP method specific options */
            if (!(*eap->reader)(lower, ifcfg, keys_ifcfg, s_8021x, FALSE, error))
                return NULL;

            nm_setting_802_1x_add_eap_method(s_8021x, lower);
            found = TRUE;
            break;

next:
            eap++;
        }

        if (!found)
            PARSE_WARNING("ignored unknown IEEE_8021X_EAP_METHOD '%s'", lower);
    }

    if (nm_setting_802_1x_get_num_eap_methods(s_8021x) == 0) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "No valid EAP methods found in IEEE_8021X_EAP_METHODS");
        return NULL;
    }

    g_object_set(s_8021x,
                 NM_SETTING_802_1X_SYSTEM_CA_CERTS,
                 svGetValueBoolean(ifcfg, "IEEE_8021X_SYSTEM_CA_CERTS", FALSE),
                 NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_SUBJECT_MATCH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_SUBJECT_MATCH, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_PHASE2_SUBJECT_MATCH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_SUBJECT_MATCH, v, NULL);

    i_val = NM_SETTING_802_1X_AUTH_FLAGS_NONE;
    if (!svGetValueEnum(ifcfg,
                        "IEEE_8021X_PHASE1_AUTH_FLAGS",
                        nm_setting_802_1x_auth_flags_get_type(),
                        &i_val,
                        error))
        return NULL;
    g_object_set(s_8021x, NM_SETTING_802_1X_PHASE1_AUTH_FLAGS, (guint) i_val, NULL);

    read_8021x_list_value(ifcfg,
                          "IEEE_8021X_ALTSUBJECT_MATCHES",
                          s_8021x,
                          NM_SETTING_802_1X_ALTSUBJECT_MATCHES);
    read_8021x_list_value(ifcfg,
                          "IEEE_8021X_PHASE2_ALTSUBJECT_MATCHES",
                          s_8021x,
                          NM_SETTING_802_1X_PHASE2_ALTSUBJECT_MATCHES);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_DOMAIN_SUFFIX_MATCH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_DOMAIN_SUFFIX_MATCH, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_PHASE2_DOMAIN_SUFFIX_MATCH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_DOMAIN_SUFFIX_MATCH, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_DOMAIN_MATCH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_DOMAIN_MATCH, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_PHASE2_DOMAIN_MATCH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_DOMAIN_MATCH, v, NULL);

    timeout = svGetValueInt64(ifcfg, "IEEE_8021X_AUTH_TIMEOUT", 10, 0, G_MAXINT32, 0);
    g_object_set(s_8021x, NM_SETTING_802_1X_AUTH_TIMEOUT, (int) timeout, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_CA_PATH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_CA_PATH, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_PHASE2_CA_PATH", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_PHASE2_CA_PATH, v, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "IEEE_8021X_OPENSSL_CIPHERS", &value);
    g_object_set(s_8021x, NM_SETTING_802_1X_OPENSSL_CIPHERS, v, NULL);

    g_object_set(s_8021x,
                 NM_SETTING_802_1X_OPTIONAL,
                 svGetValueBoolean(ifcfg, "IEEE_8021X_OPTIONAL", FALSE),
                 NULL);

    _secret_set_from_ifcfg(s_8021x, ifcfg, keys_ifcfg, "IEEE_8021X_PIN", NM_SETTING_802_1X_PIN);

    return g_steal_pointer(&s_8021x);
}

static NMSetting *
make_wpa_setting(shvarFile       *ifcfg,
                 const char      *file,
                 GBytes          *ssid,
                 gboolean         adhoc,
                 NMSetting8021x **s_8021x,
                 GError         **error)
{
    gs_unref_object NMSettingWirelessSecurity *wsec  = NULL;
    gs_free char                              *value = NULL;
    const char                                *v;
    gboolean wpa_psk = FALSE, wpa_sae = FALSE, wpa_owe = FALSE, wpa_eap = FALSE, ieee8021x = FALSE,
             wpa3_eap = FALSE;
    int     i_val;
    GError *local = NULL;

    wsec = NM_SETTING_WIRELESS_SECURITY(nm_setting_wireless_security_new());

    v         = svGetValueStr(ifcfg, "KEY_MGMT", &value);
    wpa_psk   = nm_streq0(v, "WPA-PSK");
    wpa_sae   = nm_streq0(v, "SAE");
    wpa_owe   = nm_streq0(v, "OWE");
    wpa_eap   = nm_streq0(v, "WPA-EAP");
    wpa3_eap  = nm_streq0(v, "WPA-EAP-SUITE-B-192");
    ieee8021x = nm_streq0(v, "IEEE8021X");
    if (!wpa_psk && !wpa_sae && !wpa_owe && !wpa_eap && !wpa3_eap && !ieee8021x)
        return NULL; /* Not WPA or Dynamic WEP */

    /* WPS */
    i_val = NM_SETTING_WIRELESS_SECURITY_WPS_METHOD_DEFAULT;
    if (!svGetValueEnum(ifcfg,
                        "WPS_METHOD",
                        nm_setting_wireless_security_wps_method_get_type(),
                        &i_val,
                        error))
        return NULL;
    g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_WPS_METHOD, (guint) i_val, NULL);

    /* Pairwise and Group ciphers (only relevant for WPA/RSN) */
    if (wpa_psk || wpa_sae || wpa_owe || wpa_eap) {
        fill_wpa_ciphers(ifcfg, wsec, FALSE, adhoc);
        fill_wpa_ciphers(ifcfg, wsec, TRUE, adhoc);
    }

    /* WPA and/or RSN */
    if (adhoc) {
        /* Ad-Hoc mode only supports RSN proto */
        nm_setting_wireless_security_add_proto(wsec, "rsn");
    } else {
        gs_free char *value2 = NULL;
        const char   *v2;

        v2 = svGetValueStr(ifcfg, "WPA_ALLOW_WPA", &value2);
        if (v2 && svParseBoolean(v2, TRUE))
            nm_setting_wireless_security_add_proto(wsec, "wpa");

        nm_clear_g_free(&value2);
        v2 = svGetValueStr(ifcfg, "WPA_ALLOW_WPA2", &value2);
        if (v2 && svParseBoolean(v2, TRUE))
            nm_setting_wireless_security_add_proto(wsec, "rsn");
    }

    if (wpa_psk || wpa_sae) {
        NMSettingSecretFlags psk_flags;

        psk_flags = _secret_read_ifcfg_flags(ifcfg, "WPA_PSK_FLAGS");
        g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_PSK_FLAGS, psk_flags, NULL);

        /* Read PSK if it's system-owned */
        if (psk_flags == NM_SETTING_SECRET_FLAG_NONE) {
            gs_free char *psk = NULL;

            psk = parse_wpa_psk(ifcfg, file, ssid, &local);
            if (psk)
                g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_PSK, psk, NULL);
            else if (local) {
                g_propagate_error(error, local);
                return NULL;
            }
        }

        if (wpa_psk)
            g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, "wpa-psk", NULL);
        else {
            nm_assert(wpa_sae);
            g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, "sae", NULL);
        }
    } else {
        nm_assert(wpa_eap || wpa3_eap || ieee8021x || wpa_owe);

        /* Adhoc mode is mutually exclusive with any 802.1x-based authentication */
        if (adhoc) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Ad-Hoc mode cannot be used with KEY_MGMT type '%s'",
                        v);
            return NULL;
        }

        if (wpa_owe) {
            g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, "owe", NULL);
        } else {
            *s_8021x = fill_8021x(ifcfg, file, v, TRUE, error);
            if (!*s_8021x)
                return NULL;

            {
                gs_free char *lower = g_ascii_strdown(v, -1);
                g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_KEY_MGMT, lower, NULL);
            }
        }
    }

    i_val = NM_SETTING_WIRELESS_SECURITY_PMF_DEFAULT;
    if (!svGetValueEnum(ifcfg, "PMF", nm_setting_wireless_security_pmf_get_type(), &i_val, error))
        return NULL;
    g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_PMF, i_val, NULL);

    i_val = NM_SETTING_WIRELESS_SECURITY_FILS_DEFAULT;
    if (!svGetValueEnum(ifcfg, "FILS", nm_setting_wireless_security_fils_get_type(), &i_val, error))
        return NULL;
    g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_FILS, i_val, NULL);

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "SECURITYMODE", &value);
    if (NM_IN_STRSET(v, NULL, "open"))
        g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_AUTH_ALG, v, NULL);

    return (NMSetting *) g_steal_pointer(&wsec);
}

static NMSetting *
make_leap_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    gs_unref_object NMSettingWirelessSecurity *wsec = NULL;
    shvarFile                                 *keys_ifcfg;
    gs_free char                              *value = NULL;
    NMSettingSecretFlags                       flags;

    wsec = NM_SETTING_WIRELESS_SECURITY(nm_setting_wireless_security_new());

    value = svGetValueStr_cp(ifcfg, "KEY_MGMT");
    if (!value || strcmp(value, "IEEE8021X"))
        return NULL;
    nm_clear_g_free(&value);

    value = svGetValueStr_cp(ifcfg, "SECURITYMODE");
    if (!value || g_ascii_strcasecmp(value, "leap"))
        return NULL; /* Not LEAP */
    nm_clear_g_free(&value);

    flags = _secret_read_ifcfg_flags(ifcfg, "IEEE_8021X_PASSWORD_FLAGS");
    g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_LEAP_PASSWORD_FLAGS, flags, NULL);

    /* Read LEAP password if it's system-owned */
    if (flags == NM_SETTING_SECRET_FLAG_NONE) {
        value = svGetValueStr_cp(ifcfg, "IEEE_8021X_PASSWORD");
        if (!value) {
            /* Try to get keys from the "shadow" key file */
            keys_ifcfg = utils_get_keys_ifcfg(file, FALSE);
            if (keys_ifcfg) {
                value = svGetValueStr_cp(keys_ifcfg, "IEEE_8021X_PASSWORD");
                svCloseFile(keys_ifcfg);
            }
        }
        if (value && strlen(value))
            g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_LEAP_PASSWORD, value, NULL);
        nm_clear_g_free(&value);
    }

    value = svGetValueStr_cp(ifcfg, "IEEE_8021X_IDENTITY");
    if (!value) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Missing LEAP identity");
        return NULL;
    }
    g_object_set(wsec, NM_SETTING_WIRELESS_SECURITY_LEAP_USERNAME, value, NULL);
    nm_clear_g_free(&value);

    g_object_set(wsec,
                 NM_SETTING_WIRELESS_SECURITY_KEY_MGMT,
                 "ieee8021x",
                 NM_SETTING_WIRELESS_SECURITY_AUTH_ALG,
                 "leap",
                 NULL);

    return (NMSetting *) g_steal_pointer(&wsec);
}

static NMSetting *
make_wireless_security_setting(shvarFile       *ifcfg,
                               const char      *file,
                               GBytes          *ssid,
                               gboolean         adhoc,
                               NMSetting8021x **s_8021x,
                               GError         **error)
{
    NMSetting *wsec;

    g_return_val_if_fail(error && !*error, NULL);

    if (!adhoc) {
        wsec = make_leap_setting(ifcfg, file, error);
        if (wsec)
            return wsec;
        else if (*error)
            return NULL;
    }

    wsec = make_wpa_setting(ifcfg, file, ssid, adhoc, s_8021x, error);
    if (wsec)
        return wsec;
    else if (*error)
        return NULL;

    wsec = make_wep_setting(ifcfg, file, error);
    if (wsec)
        return wsec;
    else if (*error)
        return NULL;

    return NULL; /* unencrypted */
}

static const char **
transform_hwaddr_blacklist(const char *blacklist)
{
    const char **strv;
    gsize        i, j;

    strv = nm_strsplit_set(blacklist, " \t");
    if (!strv)
        return NULL;
    for (i = 0, j = 0; strv[j]; j++) {
        const char *s = strv[j];

        if (!nm_utils_hwaddr_valid(s, ETH_ALEN)) {
            PARSE_WARNING("invalid MAC in HWADDR_BLACKLIST '%s'", s);
            continue;
        }
        strv[i++] = s;
    }
    strv[i] = NULL;
    return strv;
}

static NMSetting *
make_wireless_setting(shvarFile *ifcfg, GError **error)
{
    NMSettingWireless         *s_wireless;
    const char                *cvalue;
    char                      *value = NULL;
    gint64                     chan  = 0;
    NMSettingMacRandomization  mac_randomization;
    NMSettingWirelessPowersave powersave = NM_SETTING_WIRELESS_POWERSAVE_DEFAULT;
    NMTernary                  ternary;

    s_wireless = NM_SETTING_WIRELESS(nm_setting_wireless_new());

    value = svGetValueStr_cp(ifcfg, "HWADDR");
    if (value) {
        value = g_strstrip(value);
        g_object_set(s_wireless, NM_SETTING_WIRELESS_MAC_ADDRESS, value, NULL);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "MACADDR");
    if (value) {
        value = g_strstrip(value);
        g_object_set(s_wireless, NM_SETTING_WIRELESS_CLONED_MAC_ADDRESS, value, NULL);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "GENERATE_MAC_ADDRESS_MASK");
    g_object_set(s_wireless, NM_SETTING_WIRELESS_GENERATE_MAC_ADDRESS_MASK, value, NULL);
    g_free(value);

    cvalue = svGetValueStr(ifcfg, "HWADDR_BLACKLIST", &value);
    if (cvalue) {
        gs_free const char **strv = NULL;

        strv = transform_hwaddr_blacklist(cvalue);
        g_object_set(s_wireless, NM_SETTING_WIRELESS_MAC_ADDRESS_BLACKLIST, strv, NULL);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "ESSID");
    if (value) {
        gs_unref_bytes GBytes *bytes     = NULL;
        gsize                  ssid_len  = 0;
        gsize                  value_len = strlen(value);

        if (value_len > 2 && (value_len % 2) == 0 && g_str_has_prefix(value, "0x")
            && NM_STRCHAR_ALL(&value[2], ch, g_ascii_isxdigit(ch))) {
            /* interpret the value as hex-digits iff value starts
             * with "0x" followed by pairs of hex digits */
            bytes = nm_utils_hexstr2bin(&value[2]);
        } else
            bytes = g_bytes_new(value, value_len);

        ssid_len = g_bytes_get_size(bytes);
        if (ssid_len == 0 || ssid_len > NM_IW_ESSID_MAX_SIZE) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid SSID '%s' (size %zu not between 1 and 32 inclusive)",
                        value,
                        ssid_len);
            g_free(value);
            goto error;
        }

        g_object_set(s_wireless, NM_SETTING_WIRELESS_SSID, bytes, NULL);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "MODE");
    if (value) {
        char       *lcase;
        const char *mode = NULL;

        lcase = g_ascii_strdown(value, -1);
        g_free(value);

        if (!strcmp(lcase, "ad-hoc")) {
            mode = "adhoc";
        } else if (!strcmp(lcase, "ap")) {
            mode = "ap";
        } else if (!strcmp(lcase, "managed") || !strcmp(lcase, "auto")) {
            mode = "infrastructure";
        } else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid mode '%s' (not 'Ad-Hoc', 'Ap', 'Managed', or 'Auto')",
                        lcase);
            g_free(lcase);
            goto error;
        }
        g_free(lcase);

        g_object_set(s_wireless, NM_SETTING_WIRELESS_MODE, mode, NULL);
    }

    value = svGetValueStr_cp(ifcfg, "BSSID");
    if (value) {
        value = g_strstrip(value);
        g_object_set(s_wireless, NM_SETTING_WIRELESS_BSSID, value, NULL);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "CHANNEL");
    if (value) {
        chan = _nm_utils_ascii_str_to_int64(value, 10, 1, 196, 0);
        if (chan == 0) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid wireless channel '%s'",
                        value);
            g_free(value);
            goto error;
        }
        g_object_set(s_wireless, NM_SETTING_WIRELESS_CHANNEL, (guint32) chan, NULL);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "BAND");
    if (value) {
        if (!strcmp(value, "a")) {
            if (chan && chan <= 14) {
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Band '%s' invalid for channel %u",
                            value,
                            (guint32) chan);
                g_free(value);
                goto error;
            }
        } else if (!strcmp(value, "bg")) {
            if (chan && chan > 14) {
                g_set_error(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Band '%s' invalid for channel %u",
                            value,
                            (guint32) chan);
                g_free(value);
                goto error;
            }
        } else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid wireless band '%s'",
                        value);
            g_free(value);
            goto error;
        }
        g_object_set(s_wireless, NM_SETTING_WIRELESS_BAND, value, NULL);
        g_free(value);
    } else if (chan > 0) {
        if (chan > 14)
            g_object_set(s_wireless, NM_SETTING_WIRELESS_BAND, "a", NULL);
        else
            g_object_set(s_wireless, NM_SETTING_WIRELESS_BAND, "bg", NULL);
    }

    value = svGetValueStr_cp(ifcfg, "MTU");
    if (value) {
        int mtu;

        mtu = _nm_utils_ascii_str_to_int64(value, 10, 0, 50000, -1);
        if (mtu == -1) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid wireless MTU '%s'",
                        value);
            g_free(value);
            goto error;
        }
        g_object_set(s_wireless, NM_SETTING_WIRELESS_MTU, (guint) mtu, NULL);
        g_free(value);
    }

    g_object_set(s_wireless,
                 NM_SETTING_WIRELESS_HIDDEN,
                 svGetValueBoolean(ifcfg, "SSID_HIDDEN", FALSE),
                 NULL);

    cvalue = svGetValue(ifcfg, "POWERSAVE", &value);
    if (cvalue) {
        if (!strcmp(cvalue, "default"))
            powersave = NM_SETTING_WIRELESS_POWERSAVE_DEFAULT;
        else if (!strcmp(cvalue, "ignore"))
            powersave = NM_SETTING_WIRELESS_POWERSAVE_IGNORE;
        else if (!strcmp(cvalue, "disable") || !strcmp(cvalue, "no"))
            powersave = NM_SETTING_WIRELESS_POWERSAVE_DISABLE;
        else if (!strcmp(cvalue, "enable") || !strcmp(cvalue, "yes"))
            powersave = NM_SETTING_WIRELESS_POWERSAVE_ENABLE;
        else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid POWERSAVE value '%s'",
                        cvalue);
            g_free(value);
            goto error;
        }
        g_free(value);
    }

    g_object_set(s_wireless, NM_SETTING_WIRELESS_POWERSAVE, powersave, NULL);

    cvalue = svGetValue(ifcfg, "MAC_ADDRESS_RANDOMIZATION", &value);
    if (cvalue) {
        if (strcmp(cvalue, "default") == 0)
            mac_randomization = NM_SETTING_MAC_RANDOMIZATION_DEFAULT;
        else if (strcmp(cvalue, "never") == 0)
            mac_randomization = NM_SETTING_MAC_RANDOMIZATION_NEVER;
        else if (strcmp(cvalue, "always") == 0)
            mac_randomization = NM_SETTING_MAC_RANDOMIZATION_ALWAYS;
        else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid MAC_ADDRESS_RANDOMIZATION value '%s'",
                        cvalue);
            g_free(value);
            goto error;
        }
        g_free(value);
    } else
        mac_randomization = NM_SETTING_MAC_RANDOMIZATION_DEFAULT;

    g_object_set(s_wireless,
                 NM_SETTING_WIRELESS_MAC_ADDRESS_RANDOMIZATION,
                 mac_randomization,
                 NULL);

    ternary = svGetValueTernary(ifcfg, "AP_ISOLATION");
    if (ternary != NM_TERNARY_DEFAULT) {
        g_object_set(s_wireless, NM_SETTING_WIRELESS_AP_ISOLATION, ternary, NULL);
    }

    return NM_SETTING(s_wireless);

error:
    if (s_wireless)
        g_object_unref(s_wireless);
    return NULL;
}

static NMConnection *
wireless_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection   *connection       = NULL;
    NMSetting      *con_setting      = NULL;
    NMSetting      *wireless_setting = NULL;
    NMSetting8021x *s_8021x          = NULL;
    GBytes         *ssid;
    NMSetting      *security_setting = NULL;
    gs_free char   *ssid_utf8        = NULL;
    const char     *mode;
    gboolean        adhoc = FALSE;
    GError         *local = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);
    g_return_val_if_fail(!error || !*error, NULL);

    connection = nm_simple_connection_new();

    /* Wireless */
    wireless_setting = make_wireless_setting(ifcfg, error);
    if (!wireless_setting) {
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, wireless_setting);

    ssid = nm_setting_wireless_get_ssid(NM_SETTING_WIRELESS(wireless_setting));
    mode = nm_setting_wireless_get_mode(NM_SETTING_WIRELESS(wireless_setting));
    if (mode && !strcmp(mode, "adhoc"))
        adhoc = TRUE;

    /* Wireless security */
    security_setting = make_wireless_security_setting(ifcfg, file, ssid, adhoc, &s_8021x, &local);
    if (local) {
        g_object_unref(connection);
        g_propagate_error(error, local);
        return NULL;
    }
    if (security_setting) {
        nm_connection_add_setting(connection, security_setting);
        if (s_8021x)
            nm_connection_add_setting(connection, NM_SETTING(s_8021x));
    }

    if (ssid)
        ssid_utf8 = _nm_utils_ssid_to_utf8(ssid);

    /* Connection */
    con_setting = make_connection_setting(file,
                                          ifcfg,
                                          NM_SETTING_WIRELESS_SETTING_NAME,
                                          nm_str_not_empty(ssid_utf8) ?: "unmanaged",
                                          NULL);

    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    return connection;
}

typedef struct {
    const char *optname;
    union {
        guint32   u32;
        NMTernary nmternary;
    } v;
    gboolean has_value;
} NMEthtoolIfcfgOption;

/* returns an 'iterator' to words
 * pointing to the next unprocessed option or NULL
 * in case of failure */
static const char **
_next_ethtool_options_nmternary(const char          **words,
                                NMEthtoolType         ethtool_type,
                                NMEthtoolIfcfgOption *out_value)
{
    const char          *opt;
    const char          *opt_val;
    const NMEthtoolData *d     = NULL;
    NMTernary            onoff = NM_TERNARY_DEFAULT;

    nm_assert(out_value);

    out_value->has_value = FALSE;
    out_value->optname   = NULL;

    if (!words || !words[0] || !words[1])
        return NULL;

    opt     = *words;
    opt_val = *(++words);

    if (nm_streq0(opt_val, "on"))
        onoff = NM_TERNARY_TRUE;
    else if (nm_streq0(opt_val, "off"))
        onoff = NM_TERNARY_FALSE;

    d = nms_ifcfg_rh_utils_get_ethtool_by_name(opt, ethtool_type);
    if (!d) {
        if (onoff != NM_TERNARY_DEFAULT) {
            /* the next value is just the on/off argument. Skip it too. */
            ++words;
        }

        /* silently ignore unsupported offloading features. */
        return words;
    }

    if (onoff == NM_TERNARY_DEFAULT) {
        PARSE_WARNING("Expects on/off argument for feature '%s'", opt);
        return words;
    }

    out_value->has_value   = TRUE;
    out_value->optname     = d->optname;
    out_value->v.nmternary = onoff;

    return ++words;
}

/* returns an 'iterator' to words
 * pointing to the next unprocessed option or NULL
 * in case of failure */
static const char **
_next_ethtool_options_uint32(const char          **words,
                             NMEthtoolType         ethtool_type,
                             NMEthtoolIfcfgOption *out_value)
{
    gint64               i64;
    const char          *opt;
    const char          *opt_val;
    const NMEthtoolData *d = NULL;

    nm_assert(out_value);

    out_value->has_value = FALSE;
    out_value->optname   = NULL;

    if (!words || !words[0] || !words[1])
        return NULL;

    opt     = *words;
    opt_val = *(++words);

    i64 = _nm_utils_ascii_str_to_int64(opt_val, 10, 0, G_MAXUINT32, -1);

    d = nms_ifcfg_rh_utils_get_ethtool_by_name(opt, ethtool_type);
    if (!d) {
        if (i64 != -1) {
            /* the next value is just the on/off argument. Skip it too. */
            ++words;
        }

        /* silently ignore unsupported offloading features. */
        return words;
    }

    out_value->has_value = TRUE;
    out_value->optname   = d->optname;
    out_value->v.u32     = (guint32) i64;

    return ++words;
}

static NM_UTILS_STRING_TABLE_LOOKUP_DEFINE(
    _get_ethtool_type_by_name,
    NMEthtoolType,
    { nm_assert(name); },
    { return NM_ETHTOOL_TYPE_UNKNOWN; },
    {"--coalesce", NM_ETHTOOL_TYPE_COALESCE},
    {"--features", NM_ETHTOOL_TYPE_FEATURE},
    {"--offload", NM_ETHTOOL_TYPE_FEATURE},
    {"--pause", NM_ETHTOOL_TYPE_PAUSE},
    {"--set-ring", NM_ETHTOOL_TYPE_RING},
    {"-A", NM_ETHTOOL_TYPE_PAUSE},
    {"-C", NM_ETHTOOL_TYPE_COALESCE},
    {"-G", NM_ETHTOOL_TYPE_RING},
    {"-K", NM_ETHTOOL_TYPE_FEATURE}, );

static void
parse_ethtool_option(const char              *value,
                     NMSettingWiredWakeOnLan *out_flags,
                     char                   **out_password,
                     gboolean                *out_autoneg,
                     guint32                 *out_speed,
                     const char             **out_duplex,
                     NMSettingEthtool       **out_s_ethtool)
{
    guint                i;
    const char         **w_iter;
    NMEthtoolIfcfgOption ifcfg_option;
    gs_free const char **words        = NULL;
    NMEthtoolType        ethtool_type = NM_ETHTOOL_TYPE_UNKNOWN;

    words = nm_strsplit_set(value, " \t\n");
    if (!words)
        return;

    if (words[0])
        ethtool_type = _get_ethtool_type_by_name(words[0]);

    if (ethtool_type != NM_ETHTOOL_TYPE_UNKNOWN) {
        if (!words[1]) {
            /* first argument must be the interface name. This is invalid. */
            return;
        }

        if (!*out_s_ethtool)
            *out_s_ethtool = NM_SETTING_ETHTOOL(nm_setting_ethtool_new());

        /* skip ethtool type && interface name */
        w_iter = &words[2];

        while (w_iter && *w_iter) {
            if (NM_IN_SET(ethtool_type, NM_ETHTOOL_TYPE_FEATURE, NM_ETHTOOL_TYPE_PAUSE)) {
                w_iter = _next_ethtool_options_nmternary(w_iter, ethtool_type, &ifcfg_option);

                if (ifcfg_option.has_value) {
                    nm_setting_option_set_boolean(NM_SETTING(*out_s_ethtool),
                                                  ifcfg_option.optname,
                                                  ifcfg_option.v.nmternary != NM_TERNARY_FALSE);
                }
            }
            if (NM_IN_SET(ethtool_type, NM_ETHTOOL_TYPE_COALESCE, NM_ETHTOOL_TYPE_RING)) {
                w_iter = _next_ethtool_options_uint32(w_iter, ethtool_type, &ifcfg_option);

                if (ifcfg_option.has_value) {
                    nm_setting_option_set_uint32(NM_SETTING(*out_s_ethtool),
                                                 ifcfg_option.optname,
                                                 ifcfg_option.v.u32);
                }
            }
        }

        return;
    }

    /* /sbin/ethtool -s ${REALDEVICE} $opts */
    for (i = 0; words[i];) {
        const char *opt     = words[i];
        const char *opt_val = words[++i];

        if (nm_streq(opt, "autoneg")) {
            if (!opt_val) {
                PARSE_WARNING("Auto-negotiation option missing");
                break;
            }
            i++;

            if (nm_streq(opt_val, "off"))
                *out_autoneg = FALSE;
            else if (nm_streq(opt_val, "on"))
                *out_autoneg = TRUE;
            else
                PARSE_WARNING("Auto-negotiation unknown value: %s", opt_val);
            continue;
        }

        if (nm_streq(opt, "speed")) {
            guint32 speed;

            if (!opt_val) {
                PARSE_WARNING("Speed option missing");
                break;
            }
            i++;

            speed = _nm_utils_ascii_str_to_int64(opt_val, 10, 0, G_MAXUINT32, 0);
            if (errno == 0)
                *out_speed = speed;
            else
                PARSE_WARNING("Speed value '%s' is invalid", opt_val);
            continue;
        }

        if (nm_streq(opt, "duplex")) {
            if (!opt_val) {
                PARSE_WARNING("Duplex option missing");
                break;
            }
            i++;

            if (nm_streq(opt_val, "half"))
                *out_duplex = "half";
            else if (nm_streq(opt_val, "full"))
                *out_duplex = "full";
            else
                PARSE_WARNING("Duplex unknown value: %s", opt_val);
            continue;
        }

        if (nm_streq(opt, "wol")) {
            NMSettingWiredWakeOnLan wol_flags = NM_SETTING_WIRED_WAKE_ON_LAN_NONE;

            if (!opt_val) {
                PARSE_WARNING("Wake-on-LAN options missing");
                break;
            }
            i++;

            for (; *opt_val; opt_val++) {
                switch (*opt_val) {
                case 'p':
                    wol_flags |= NM_SETTING_WIRED_WAKE_ON_LAN_PHY;
                    break;
                case 'u':
                    wol_flags |= NM_SETTING_WIRED_WAKE_ON_LAN_UNICAST;
                    break;
                case 'm':
                    wol_flags |= NM_SETTING_WIRED_WAKE_ON_LAN_MULTICAST;
                    break;
                case 'b':
                    wol_flags |= NM_SETTING_WIRED_WAKE_ON_LAN_BROADCAST;
                    break;
                case 'a':
                    wol_flags |= NM_SETTING_WIRED_WAKE_ON_LAN_ARP;
                    break;
                case 'g':
                    wol_flags |= NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC;
                    break;
                case 's':
                    break;
                case 'd':
                    wol_flags = NM_SETTING_WIRED_WAKE_ON_LAN_NONE;
                    break;
                default:
                    PARSE_WARNING("unrecognized Wake-on-LAN option '%c'", *opt_val);
                }
            }

            *out_flags = wol_flags;
            continue;
        }

        if (nm_streq(opt, "sopass")) {
            if (!opt_val) {
                PARSE_WARNING("Wake-on-LAN password missing");
                break;
            }
            i++;

            if (nm_utils_hwaddr_valid(opt_val, ETH_ALEN)) {
                nm_clear_g_free(out_password);
                *out_password = g_strdup(opt_val);
            } else
                PARSE_WARNING("Wake-on-LAN password '%s' is invalid", opt_val);
            continue;
        }

        /* Silently skip unknown options */
    }
}

static GPtrArray *
read_routing_rules_parse(shvarFile *ifcfg, gboolean routes_read)
{
    gs_unref_ptrarray GPtrArray *arr  = NULL;
    gs_free const char         **keys = NULL;
    guint                        i, len;

    keys = svGetKeysSorted(ifcfg, SV_KEY_TYPE_ROUTING_RULE4 | SV_KEY_TYPE_ROUTING_RULE6, &len);
    if (len == 0)
        return NULL;

    if (!routes_read) {
        PARSE_WARNING("'rule-' or 'rule6-' files are present; Policy routing rules (ROUTING_RULE*) "
                      "settings are ignored");
        return NULL;
    }

    arr = g_ptr_array_new_full(len, (GDestroyNotify) nm_ip_routing_rule_unref);
    for (i = 0; i < len; i++) {
        const char                                    *key           = keys[i];
        nm_auto_unref_ip_routing_rule NMIPRoutingRule *rule          = NULL;
        gs_free_error GError                          *local         = NULL;
        gs_free char                                  *value_to_free = NULL;
        const char                                    *value;
        gboolean                                       key_is_ipv4;

        key_is_ipv4 = (key[NM_STRLEN("ROUTING_RULE")] == '_');
        nm_assert(key_is_ipv4 == NM_STR_HAS_PREFIX(key, "ROUTING_RULE_"));
        nm_assert((!key_is_ipv4) == NM_STR_HAS_PREFIX(key, "ROUTING_RULE6_"));

        value = svGetValueStr(ifcfg, key, &value_to_free);
        if (!value)
            continue;

        rule = nm_ip_routing_rule_from_string(
            value,
            NM_IP_ROUTING_RULE_AS_STRING_FLAGS_VALIDATE
                | (key_is_ipv4 ? NM_IP_ROUTING_RULE_AS_STRING_FLAGS_AF_INET
                               : NM_IP_ROUTING_RULE_AS_STRING_FLAGS_AF_INET6),
            NULL,
            &local);
        if (!rule) {
            PARSE_WARNING("invalid routing rule %s=\"%s\": %s", key, value, local->message);
            continue;
        }

        g_ptr_array_add(arr, g_steal_pointer(&rule));
    }

    if (arr->len == 0)
        return NULL;

    return g_steal_pointer(&arr);
}

static void
read_routing_rules(shvarFile         *ifcfg,
                   gboolean           routes_read,
                   NMSettingIPConfig *s_ip4,
                   NMSettingIPConfig *s_ip6)
{
    gs_unref_ptrarray GPtrArray *routing_rules = NULL;
    guint                        i;

    routing_rules = read_routing_rules_parse(ifcfg, routes_read);
    if (!routing_rules)
        return;

    for (i = 0; i < routing_rules->len; i++) {
        NMIPRoutingRule *rule = routing_rules->pdata[i];

        nm_setting_ip_config_add_routing_rule(
            (nm_ip_routing_rule_get_addr_family(rule) == AF_INET) ? s_ip4 : s_ip6,
            rule);
    }
}

static void
parse_ethtool_options(shvarFile *ifcfg, NMConnection *connection)
{
    NMSettingWired                   *s_wired;
    gs_unref_object NMSettingEthtool *s_ethtool         = NULL;
    NMSettingWiredWakeOnLan           wol_flags         = NM_SETTING_WIRED_WAKE_ON_LAN_DEFAULT;
    gs_free char                     *ethtool_opts_free = NULL;
    const char                       *ethtool_opts;
    gs_free char                     *wol_password   = NULL;
    gs_free char                     *wol_value_free = NULL;
    const char                       *tmp;
    gboolean                          autoneg     = FALSE;
    guint32                           speed       = 0;
    const char                       *duplex      = NULL;
    gboolean                          wired_found = FALSE;

    ethtool_opts = svGetValue(ifcfg, "ETHTOOL_OPTS", &ethtool_opts_free);
    if (ethtool_opts) {
        wired_found = TRUE;
        /* WAKE_ON_LAN_IGNORE is inferred from a specified but empty ETHTOOL_OPTS */
        if (!ethtool_opts[0])
            wol_flags = NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE;
        else {
            gs_free const char **opts = NULL;
            const char *const   *iter;

            opts = nm_strsplit_set(ethtool_opts, ";");
            for (iter = opts; iter && iter[0]; iter++) {
                /* in case of repeated wol_passwords, parse_ethtool_option()
                 * will do the right thing and clear wol_password before resetting. */
                parse_ethtool_option(iter[0],
                                     &wol_flags,
                                     &wol_password,
                                     &autoneg,
                                     &speed,
                                     &duplex,
                                     &s_ethtool);
            }
        }
    }

    /* ETHTOOL_WAKE_ON_LAN = ignore overrides WoL settings in ETHTOOL_OPTS */
    tmp = svGetValue(ifcfg, "ETHTOOL_WAKE_ON_LAN", &wol_value_free);
    if (tmp)
        wired_found = TRUE;
    if (nm_streq0(tmp, "ignore"))
        wol_flags = NM_SETTING_WIRED_WAKE_ON_LAN_IGNORE;
    else if (tmp)
        PARSE_WARNING("invalid ETHTOOL_WAKE_ON_LAN value '%s'", tmp);

    if (wol_password && !NM_FLAGS_HAS(wol_flags, NM_SETTING_WIRED_WAKE_ON_LAN_MAGIC)) {
        PARSE_WARNING("Wake-on-LAN password not expected");
        nm_clear_g_free(&wol_password);
    }

    s_wired = nm_connection_get_setting_wired(connection);
    if (!s_wired && wired_found) {
        s_wired = (NMSettingWired *) nm_setting_wired_new();
        nm_connection_add_setting(connection, NM_SETTING(s_wired));
    }
    if (s_wired) {
        g_object_set(s_wired,
                     NM_SETTING_WIRED_WAKE_ON_LAN,
                     wol_flags,
                     NM_SETTING_WIRED_WAKE_ON_LAN_PASSWORD,
                     wol_password,
                     NM_SETTING_WIRED_AUTO_NEGOTIATE,
                     autoneg,
                     NM_SETTING_WIRED_SPEED,
                     speed,
                     NM_SETTING_WIRED_DUPLEX,
                     duplex,
                     NULL);
    }

    if (s_ethtool) {
        nm_connection_add_setting(connection, NM_SETTING(g_steal_pointer(&s_ethtool)));
    }
}

static NMSetting *
make_wired_setting(shvarFile *ifcfg, const char *file, NMSetting8021x **s_8021x, GError **error)
{
    gs_unref_object NMSettingWired *s_wired = NULL;
    const char                     *cvalue;
    gs_free char                   *value = NULL;
    gboolean                        found = FALSE;
    NMTernary                       accept_all_mac_addresses;

    s_wired = NM_SETTING_WIRED(nm_setting_wired_new());

    cvalue = svGetValue(ifcfg, "MTU", &value);
    if (cvalue) {
        int mtu;

        mtu = _nm_utils_ascii_str_to_int64(cvalue, 0, 0, 65535, -1);
        if (mtu >= 0)
            g_object_set(s_wired, NM_SETTING_WIRED_MTU, (guint) mtu, NULL);
        else
            PARSE_WARNING("invalid MTU '%s'", cvalue);
        nm_clear_g_free(&value);
        found = TRUE;
    }

    value = svGetValue_cp(ifcfg, "HWADDR");
    if (value) {
        if (value[0] != '\0') {
            value = g_strstrip(value);
            g_object_set(s_wired, NM_SETTING_WIRED_MAC_ADDRESS, value, NULL);
        }
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValue(ifcfg, "SUBCHANNELS", &value);
    if (cvalue) {
        if (cvalue[0] != '\0') {
            const char *p       = cvalue;
            gboolean    success = TRUE;

            /* basic sanity checks */
            while (*p) {
                if (!g_ascii_isxdigit(*p) && (*p != ',') && (*p != '.')) {
                    PARSE_WARNING("invalid SUBCHANNELS '%s'", cvalue);
                    success = FALSE;
                    break;
                }
                p++;
            }

            if (success) {
                gs_free const char **chans = NULL;
                guint32              num_chans;

                chans     = nm_strsplit_set(cvalue, ",");
                num_chans = NM_PTRARRAY_LEN(chans);
                if (num_chans < 2 || num_chans > 3) {
                    PARSE_WARNING("invalid SUBCHANNELS '%s' (%u channels, 2 or 3 expected)",
                                  cvalue,
                                  (unsigned) NM_PTRARRAY_LEN(chans));
                } else
                    g_object_set(s_wired, NM_SETTING_WIRED_S390_SUBCHANNELS, chans, NULL);
            }
        }
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValue(ifcfg, "PORTNAME", &value);
    if (cvalue) {
        if (cvalue[0] != '\0')
            nm_setting_wired_add_s390_option(s_wired, "portname", cvalue);
        found = TRUE;
        nm_clear_g_free(&value);
    }

    cvalue = svGetValue(ifcfg, "CTCPROT", &value);
    if (cvalue) {
        if (cvalue[0] != '\0')
            nm_setting_wired_add_s390_option(s_wired, "ctcprot", cvalue);
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValue(ifcfg, "NETTYPE", &value);
    if (cvalue) {
        if (NM_IN_STRSET(cvalue, "qeth", "lcs", "ctc"))
            g_object_set(s_wired, NM_SETTING_WIRED_S390_NETTYPE, cvalue, NULL);
        else
            PARSE_WARNING("unknown s390 NETTYPE '%s'", cvalue);
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValue(ifcfg, "OPTIONS", &value);
    if (cvalue)
        found = TRUE;
    if (cvalue && cvalue[0]) {
        gs_free const char **options = NULL;
        gsize                i;

        options = nm_utils_escaped_tokens_split(cvalue, NM_ASCII_SPACES);
        for (i = 0; options && options[i]; i++) {
            const char *line = options[i];
            const char *equals;

            equals = strchr(line, '=');
            if (!equals)
                continue;

            /* Here we don't verify the key/value further. If the file contains invalid keys,
             * we will later reject the connection as invalid. */
            ((char *) equals)[0] = '\0';
            nm_setting_wired_add_s390_option(s_wired, line, equals + 1);
        }
        found = TRUE;
    }
    nm_clear_g_free(&value);

    cvalue = svGetValueStr(ifcfg, "MACADDR", &value);
    if (cvalue) {
        if (cvalue[0] != '\0') {
            g_object_set(s_wired, NM_SETTING_WIRED_CLONED_MAC_ADDRESS, cvalue, NULL);
        }
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValueStr(ifcfg, "GENERATE_MAC_ADDRESS_MASK", &value);
    if (cvalue) {
        if (cvalue[0] != '\0') {
            g_object_set(s_wired, NM_SETTING_WIRED_GENERATE_MAC_ADDRESS_MASK, cvalue, NULL);
        }
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValueStr(ifcfg, "HWADDR_BLACKLIST", &value);
    if (cvalue) {
        gs_free const char **strv = NULL;

        strv = transform_hwaddr_blacklist(cvalue);
        g_object_set(s_wired, NM_SETTING_WIRED_MAC_ADDRESS_BLACKLIST, strv, NULL);
        nm_clear_g_free(&value);
        found = TRUE;
    }

    cvalue = svGetValue(ifcfg, "KEY_MGMT", &value);
    if (cvalue)
        found = TRUE;
    if (cvalue && cvalue[0] != '\0') {
        if (!strcmp(cvalue, "IEEE8021X")) {
            *s_8021x = fill_8021x(ifcfg, file, cvalue, FALSE, error);
            if (!*s_8021x)
                return NULL;
        } else {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Unknown wired KEY_MGMT type '%s'",
                        cvalue);
            return NULL;
        }
    }
    nm_clear_g_free(&value);

    accept_all_mac_addresses = svGetValueTernary(ifcfg, "ACCEPT_ALL_MAC_ADDRESSES");
    if (accept_all_mac_addresses != NM_TERNARY_DEFAULT) {
        g_object_set(s_wired,
                     NM_SETTING_WIRED_ACCEPT_ALL_MAC_ADDRESSES,
                     accept_all_mac_addresses,
                     NULL);
        found = TRUE;
    }

    if (!found) {
        g_set_error(error,
                    NM_UTILS_ERROR,
                    NM_UTILS_ERROR_SETTING_MISSING,
                    "The setting is missing");
        return NULL;
    }

    return (NMSetting *) g_steal_pointer(&s_wired);
}

static NMConnection *
wired_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection   *connection    = NULL;
    NMSetting      *con_setting   = NULL;
    NMSetting      *wired_setting = NULL;
    NMSetting8021x *s_8021x       = NULL;
    GError         *local         = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);

    connection = nm_simple_connection_new();

    con_setting = make_connection_setting(file, ifcfg, NM_SETTING_WIRED_SETTING_NAME, NULL, NULL);
    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    wired_setting = make_wired_setting(ifcfg, file, &s_8021x, &local);
    if (local && !g_error_matches(local, NM_UTILS_ERROR, NM_UTILS_ERROR_SETTING_MISSING)) {
        g_propagate_error(error, local);
        g_object_unref(connection);
        return NULL;
    }
    g_clear_error(&local);

    if (wired_setting)
        nm_connection_add_setting(connection, wired_setting);

    if (s_8021x)
        nm_connection_add_setting(connection, NM_SETTING(s_8021x));

    return connection;
}

static gboolean
parse_infiniband_p_key(shvarFile *ifcfg, int *out_p_key, char **out_parent, GError **error)
{
    gs_free char *physdev = NULL;
    gs_free char *pkey_id = NULL;
    int           id;
    int           fixup_id = 0;

    physdev = svGetValueStr_cp(ifcfg, "PHYSDEV");
    if (!physdev) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "infiniband connection specified PKEY but not PHYSDEV");
        return FALSE;
    }

    pkey_id = svGetValueStr_cp(ifcfg, "PKEY_ID_NM");
    if (!pkey_id) {
        /* Only check for "$PKEY_ID". That key is interpreted as having the
         * full membership flag set ("fixup_id"). */
        fixup_id = 0x8000;
        pkey_id  = svGetValueStr_cp(ifcfg, "PKEY_ID");
    }

    if (!pkey_id) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "infiniband connection specified PKEY but not PKEY_ID");
        return FALSE;
    }

    id = _nm_utils_ascii_str_to_int64(pkey_id, 0, 0, 0xFFFF, -1);
    if (id == -1) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "invalid infiniband PKEY_ID '%s'",
                    pkey_id);
        return FALSE;
    }

    id |= fixup_id;

    *out_p_key  = id;
    *out_parent = g_steal_pointer(&physdev);
    return TRUE;
}

static NMSetting *
make_infiniband_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    NMSettingInfiniband *s_infiniband;
    char                *value = NULL;

    s_infiniband = NM_SETTING_INFINIBAND(nm_setting_infiniband_new());

    value = svGetValueStr_cp(ifcfg, "MTU");
    if (value) {
        int mtu;

        mtu = _nm_utils_ascii_str_to_int64(value, 0, 0, 65535, -1);
        if (mtu >= 0)
            g_object_set(s_infiniband, NM_SETTING_INFINIBAND_MTU, (guint) mtu, NULL);
        else
            PARSE_WARNING("invalid MTU '%s'", value);
        g_free(value);
    }

    value = svGetValueStr_cp(ifcfg, "HWADDR");
    if (value) {
        value = g_strstrip(value);
        g_object_set(s_infiniband, NM_SETTING_INFINIBAND_MAC_ADDRESS, value, NULL);
        g_free(value);
    }

    if (svGetValueBoolean(ifcfg, "CONNECTED_MODE", FALSE))
        g_object_set(s_infiniband, NM_SETTING_INFINIBAND_TRANSPORT_MODE, "connected", NULL);
    else
        g_object_set(s_infiniband, NM_SETTING_INFINIBAND_TRANSPORT_MODE, "datagram", NULL);

    if (svGetValueBoolean(ifcfg, "PKEY", FALSE)) {
        gs_free char *parent = NULL;
        int           p_key;

        if (!parse_infiniband_p_key(ifcfg, &p_key, &parent, error)) {
            g_object_unref(s_infiniband);
            return NULL;
        }

        g_object_set(s_infiniband,
                     NM_SETTING_INFINIBAND_P_KEY,
                     p_key,
                     NM_SETTING_INFINIBAND_PARENT,
                     parent,
                     NULL);
    }

    return (NMSetting *) s_infiniband;
}

static NMConnection *
infiniband_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection *connection         = NULL;
    NMSetting    *con_setting        = NULL;
    NMSetting    *infiniband_setting = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);

    connection = nm_simple_connection_new();

    con_setting =
        make_connection_setting(file, ifcfg, NM_SETTING_INFINIBAND_SETTING_NAME, NULL, NULL);
    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    infiniband_setting = make_infiniband_setting(ifcfg, file, error);
    if (!infiniband_setting) {
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, infiniband_setting);

    return connection;
}

static void
handle_bond_option(NMSettingBond *s_bond, const char *key, const char *value)
{
    gs_free char *sanitized = NULL;
    const char   *p         = value;

    /* Remove any quotes or +/- from arp_ip_target */
    if (nm_streq0(key, NM_SETTING_BOND_OPTION_ARP_IP_TARGET) && value && value[0]) {
        char *j;

        if (*p == '\'' || *p == '"')
            p++;
        j = sanitized = g_malloc(strlen(p) + 1);
        while (*p) {
            if (*p != '+' && *p != '-' && *p != '\'' && *p != '"')
                *j++ = *p;
            p++;
        }
        *j++  = '\0';
        value = sanitized;
    }

    if (!_nm_setting_bond_validate_option(key, value, NULL)) {
        PARSE_WARNING("invalid bonding option '%s' = %s", key, value);
        return;
    }

    nm_setting_bond_add_option(s_bond, key, value);
}

static NMSetting *
make_bond_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    NMSettingBond *s_bond;
    gs_free char  *value = NULL;
    const char    *v;

    v = svGetValueStr(ifcfg, "DEVICE", &value);
    if (!v) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "mandatory DEVICE keyword missing");
        return NULL;
    }

    s_bond = NM_SETTING_BOND(nm_setting_bond_new());

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "BONDING_OPTS", &value);
    if (v) {
        gs_free const char **items = NULL;
        const char *const   *iter;

        items = nm_strsplit_set(v, " ");
        for (iter = items; iter && *iter; iter++) {
            gs_free char *key = NULL;
            const char   *val;

            val = strchr(*iter, '=');
            if (!val)
                continue;
            key = g_strndup(*iter, val - *iter);
            val++;
            if (key[0] && val[0])
                handle_bond_option(s_bond, key, val);
        }
    }

    return (NMSetting *) s_bond;
}

static NMSetting *
make_bond_port_setting(shvarFile *ifcfg)
{
    NMSetting    *s_port        = NULL;
    gs_free char *value_to_free = NULL;
    const char   *value;
    guint         queue_id;
    gint32        prio;

    g_return_val_if_fail(ifcfg != NULL, FALSE);

    value = svGetValue(ifcfg, "BOND_PORT_QUEUE_ID", &value_to_free);
    if (value) {
        s_port = nm_setting_bond_port_new();
        queue_id =
            _nm_utils_ascii_str_to_uint64(value, 10, 0, G_MAXUINT16, NM_BOND_PORT_QUEUE_ID_DEF);
        if (errno != 0)
            PARSE_WARNING("Invalid bond port queue_id value BOND_PORT_QUEUE_ID '%s'", value);
        else
            g_object_set(G_OBJECT(s_port), NM_SETTING_BOND_PORT_QUEUE_ID, queue_id, NULL);
    }

    nm_clear_g_free(&value_to_free);
    value = svGetValue(ifcfg, "BOND_PORT_PRIO", &value_to_free);
    if (value) {
        if (!s_port)
            s_port = nm_setting_bond_port_new();
        prio =
            _nm_utils_ascii_str_to_int64(value, 10, G_MININT32, G_MAXINT32, NM_BOND_PORT_PRIO_DEF);
        if (errno != 0)
            PARSE_WARNING("Invalid bond port prio value BOND_PORT_PRIO '%s'", value);
        else
            g_object_set(G_OBJECT(s_port), NM_SETTING_BOND_PORT_PRIO, prio, NULL);
    }

    return s_port;
}

static NMConnection *
bond_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection   *connection    = NULL;
    NMSetting      *con_setting   = NULL;
    NMSetting      *bond_setting  = NULL;
    NMSetting      *wired_setting = NULL;
    NMSetting8021x *s_8021x       = NULL;
    GError         *local         = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);

    connection = nm_simple_connection_new();

    con_setting =
        make_connection_setting(file, ifcfg, NM_SETTING_BOND_SETTING_NAME, NULL, _("Bond"));
    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    bond_setting = make_bond_setting(ifcfg, file, error);
    if (!bond_setting) {
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, bond_setting);

    wired_setting = make_wired_setting(ifcfg, file, &s_8021x, &local);
    if (local && !g_error_matches(local, NM_UTILS_ERROR, NM_UTILS_ERROR_SETTING_MISSING)) {
        g_propagate_error(error, local);
        g_object_unref(connection);
        return NULL;
    }
    g_clear_error(&local);

    if (wired_setting)
        nm_connection_add_setting(connection, wired_setting);

    if (s_8021x)
        nm_connection_add_setting(connection, NM_SETTING(s_8021x));

    return connection;
}

static NMSetting *
make_team_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    NMSetting    *s_team;
    gs_free char *value_device = NULL;
    gs_free char *value        = NULL;

    if (!svGetValueStr(ifcfg, "DEVICE", &value_device)) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "mandatory DEVICE keyword missing");
        return NULL;
    }

    s_team = nm_setting_team_new();
    g_object_set(s_team, NM_SETTING_TEAM_CONFIG, svGetValue(ifcfg, "TEAM_CONFIG", &value), NULL);
    return s_team;
}

static NMConnection *
team_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection   *connection    = NULL;
    NMSetting      *con_setting   = NULL;
    NMSetting      *team_setting  = NULL;
    NMSetting      *wired_setting = NULL;
    NMSetting8021x *s_8021x       = NULL;
    GError         *local         = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);

    connection = nm_simple_connection_new();

    con_setting =
        make_connection_setting(file, ifcfg, NM_SETTING_TEAM_SETTING_NAME, NULL, _("Team"));
    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    team_setting = make_team_setting(ifcfg, file, error);
    if (!team_setting) {
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, team_setting);

    wired_setting = make_wired_setting(ifcfg, file, &s_8021x, &local);
    if (local && !g_error_matches(local, NM_UTILS_ERROR, NM_UTILS_ERROR_SETTING_MISSING)) {
        g_propagate_error(error, local);
        g_object_unref(connection);
        return NULL;
    }
    g_clear_error(&local);

    if (wired_setting)
        nm_connection_add_setting(connection, wired_setting);

    if (s_8021x)
        nm_connection_add_setting(connection, NM_SETTING(s_8021x));

    return connection;
}

typedef enum {
    BRIDGE_OPT_TYPE_MAIN,
    BRIDGE_OPT_TYPE_OPTION,
    BRIDGE_OPT_TYPE_PORT_MAIN,
    BRIDGE_OPT_TYPE_PORT_OPTION,
} BridgeOptType;

typedef void (*BridgeOptFunc)(NMSetting    *setting,
                              gboolean      stp,
                              const char   *key,
                              const char   *value,
                              BridgeOptType opt_type);

static void
handle_bridge_option(NMSetting    *setting,
                     gboolean      stp,
                     const char   *key,
                     const char   *value,
                     BridgeOptType opt_type)
{
    static const struct {
        const char   *key;
        const char   *property_name;
        BridgeOptType opt_type;
        gboolean      only_with_stp;
        gboolean      extended_bool;
    } m /*etadata*/[] = {
        {"DELAY", NM_SETTING_BRIDGE_FORWARD_DELAY, BRIDGE_OPT_TYPE_MAIN, .only_with_stp = TRUE},
        {"priority", NM_SETTING_BRIDGE_PRIORITY, BRIDGE_OPT_TYPE_OPTION, .only_with_stp = TRUE},
        {"hello_time", NM_SETTING_BRIDGE_HELLO_TIME, BRIDGE_OPT_TYPE_OPTION, .only_with_stp = TRUE},
        {"max_age", NM_SETTING_BRIDGE_MAX_AGE, BRIDGE_OPT_TYPE_OPTION, .only_with_stp = TRUE},
        {"ageing_time", NM_SETTING_BRIDGE_AGEING_TIME, BRIDGE_OPT_TYPE_OPTION},
        {"multicast_last_member_count",
         NM_SETTING_BRIDGE_MULTICAST_LAST_MEMBER_COUNT,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_last_member_interval",
         NM_SETTING_BRIDGE_MULTICAST_LAST_MEMBER_INTERVAL,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_membership_interval",
         NM_SETTING_BRIDGE_MULTICAST_MEMBERSHIP_INTERVAL,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_hash_max", NM_SETTING_BRIDGE_MULTICAST_HASH_MAX, BRIDGE_OPT_TYPE_OPTION},
        {"multicast_querier", NM_SETTING_BRIDGE_MULTICAST_QUERIER, BRIDGE_OPT_TYPE_OPTION},
        {"multicast_querier_interval",
         NM_SETTING_BRIDGE_MULTICAST_QUERIER_INTERVAL,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_query_interval",
         NM_SETTING_BRIDGE_MULTICAST_QUERY_INTERVAL,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_query_response_interval",
         NM_SETTING_BRIDGE_MULTICAST_QUERY_RESPONSE_INTERVAL,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_query_use_ifaddr",
         NM_SETTING_BRIDGE_MULTICAST_QUERY_USE_IFADDR,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_snooping", NM_SETTING_BRIDGE_MULTICAST_SNOOPING, BRIDGE_OPT_TYPE_OPTION},
        {"multicast_router", NM_SETTING_BRIDGE_MULTICAST_ROUTER, BRIDGE_OPT_TYPE_OPTION},
        {"multicast_startup_query_count",
         NM_SETTING_BRIDGE_MULTICAST_STARTUP_QUERY_COUNT,
         BRIDGE_OPT_TYPE_OPTION},
        {"multicast_startup_query_interval",
         NM_SETTING_BRIDGE_MULTICAST_STARTUP_QUERY_INTERVAL,
         BRIDGE_OPT_TYPE_OPTION},
        {"vlan_filtering", NM_SETTING_BRIDGE_VLAN_FILTERING, BRIDGE_OPT_TYPE_OPTION},
        {"default_pvid", NM_SETTING_BRIDGE_VLAN_DEFAULT_PVID, BRIDGE_OPT_TYPE_OPTION},
        {"group_address", NM_SETTING_BRIDGE_GROUP_ADDRESS, BRIDGE_OPT_TYPE_OPTION},
        {"group_fwd_mask", NM_SETTING_BRIDGE_GROUP_FORWARD_MASK, BRIDGE_OPT_TYPE_OPTION},
        {"vlan_protocol", NM_SETTING_BRIDGE_VLAN_PROTOCOL, BRIDGE_OPT_TYPE_OPTION},
        {"vlan_stats_enabled", NM_SETTING_BRIDGE_VLAN_STATS_ENABLED, BRIDGE_OPT_TYPE_OPTION},
        {"priority", NM_SETTING_BRIDGE_PORT_PRIORITY, BRIDGE_OPT_TYPE_PORT_OPTION},
        {"path_cost", NM_SETTING_BRIDGE_PORT_PATH_COST, BRIDGE_OPT_TYPE_PORT_OPTION},
        {
            "hairpin_mode",
            NM_SETTING_BRIDGE_PORT_HAIRPIN_MODE,
            BRIDGE_OPT_TYPE_PORT_OPTION,
            .extended_bool = TRUE,
        },
    };
    const char *error_message = NULL;
    int         i;
    gint64      v;

    for (i = 0; i < G_N_ELEMENTS(m); i++) {
        GParamSpec *param_spec;

        if (opt_type != m[i].opt_type)
            continue;
        if (!nm_streq(key, m[i].key))
            continue;
        if (m[i].only_with_stp && !stp) {
            PARSE_WARNING("'%s' invalid when STP is disabled", key);
            return;
        }

        param_spec = g_object_class_find_property(G_OBJECT_GET_CLASS(setting), m[i].property_name);
        switch (param_spec->value_type) {
        case G_TYPE_BOOLEAN:
            if (m[i].extended_bool) {
                if (!g_ascii_strcasecmp(value, "on") || !g_ascii_strcasecmp(value, "yes")
                    || !strcmp(value, "1"))
                    v = TRUE;
                else if (!g_ascii_strcasecmp(value, "off") || !g_ascii_strcasecmp(value, "no"))
                    v = FALSE;
                else {
                    error_message = "is not a boolean";
                    goto warn;
                }
            } else {
                v = _nm_utils_ascii_str_to_int64(value, 10, 0, 1, -1);
                if (v == -1) {
                    error_message = nm_strerror_native(errno);
                    goto warn;
                }
            }
            if (!nm_g_object_set_property_boolean(G_OBJECT(setting), m[i].property_name, v, NULL)) {
                error_message = "number is out of range";
                goto warn;
            }
            return;
        case G_TYPE_UINT:
            v = _nm_utils_ascii_str_to_int64(value, 10, 0, G_MAXUINT, -1);
            if (v == -1) {
                error_message = nm_strerror_native(errno);
                goto warn;
            }
            if (!nm_g_object_set_property_uint(G_OBJECT(setting), m[i].property_name, v, NULL)) {
                error_message = "number is out of range";
                goto warn;
            }
            return;
        case G_TYPE_UINT64:
        {
            guint64 vu64;

            vu64 = _nm_utils_ascii_str_to_uint64(value, 10, 0, G_MAXUINT64, 0);
            if (!nm_g_object_set_property_uint64(G_OBJECT(setting),
                                                 m[i].property_name,
                                                 vu64,
                                                 NULL)) {
                error_message = "number is out of range";
                goto warn;
            }
        }
            return;
        case G_TYPE_STRING:
            nm_g_object_set_property_string(G_OBJECT(setting), m[i].property_name, value, NULL);
            return;
        default:
            nm_assert_not_reached();
            continue;
        }

warn:
        PARSE_WARNING("invalid %s value '%s': %s", key, value, error_message);
        return;
    }

    PARSE_WARNING("unhandled bridge option '%s'", key);
}

static void
handle_bridging_opts(NMSetting    *setting,
                     gboolean      stp,
                     const char   *value,
                     BridgeOptFunc func,
                     BridgeOptType opt_type)
{
    gs_free const char **items = NULL;
    const char *const   *iter;

    items = nm_strsplit_set(value, " ");
    for (iter = items; iter && *iter; iter++) {
        gs_free char *key = NULL;
        const char   *val;

        val = strchr(*iter, '=');
        if (!val)
            continue;
        key = g_strndup(*iter, val - *iter);
        val++;
        if (key[0] && val[0])
            func(setting, stp, key, val, opt_type);
    }
}

static void
read_bridge_vlans(shvarFile *ifcfg, const char *key, NMSetting *setting, const char *property)
{
    gs_unref_ptrarray GPtrArray *array         = NULL;
    gs_free char                *value_to_free = NULL;
    const char                  *value;

    value = svGetValueStr(ifcfg, key, &value_to_free);
    if (value) {
        gs_free const char **strv = NULL;
        const char *const   *iter;
        GError              *local = NULL;
        NMBridgeVlan        *vlan;

        array = g_ptr_array_new_with_free_func((GDestroyNotify) nm_bridge_vlan_unref);

        strv = nm_utils_escaped_tokens_split(value, ",");
        if (strv) {
            for (iter = strv; *iter; iter++) {
                vlan = nm_bridge_vlan_from_str(*iter, &local);
                if (!vlan) {
                    PARSE_WARNING("invalid bridge VLAN: %s", local->message);
                    g_clear_error(&local);
                    continue;
                }
                g_ptr_array_add(array, vlan);
            }
        }
        nm_clear_g_free(&value_to_free);
    }

    g_object_set(setting, property, array, NULL);
}

static NMSetting *
make_bridge_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    gs_unref_object NMSettingBridge *s_bridge      = NULL;
    gs_free char                    *value_to_free = NULL;
    const char                      *value;
    gboolean                         stp     = FALSE;
    gboolean                         stp_set = FALSE;

    value = svGetValueStr(ifcfg, "DEVICE", &value_to_free);
    if (!value) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "mandatory DEVICE keyword missing");
        return NULL;
    }
    nm_clear_g_free(&value_to_free);

    s_bridge = NM_SETTING_BRIDGE(nm_setting_bridge_new());

    value = svGetValueStr(ifcfg, "BRIDGE_MACADDR", &value_to_free);
    if (value) {
        g_object_set(s_bridge, NM_SETTING_BRIDGE_MAC_ADDRESS, value, NULL);
        nm_clear_g_free(&value_to_free);
    }

    value = svGetValueStr(ifcfg, "STP", &value_to_free);
    if (value) {
        if (!g_ascii_strcasecmp(value, "on") || !g_ascii_strcasecmp(value, "yes")) {
            g_object_set(s_bridge, NM_SETTING_BRIDGE_STP, TRUE, NULL);
            stp     = TRUE;
            stp_set = TRUE;
        } else if (!g_ascii_strcasecmp(value, "off") || !g_ascii_strcasecmp(value, "no")) {
            g_object_set(s_bridge, NM_SETTING_BRIDGE_STP, FALSE, NULL);
            stp_set = TRUE;
        } else
            PARSE_WARNING("invalid STP value '%s'", value);
        nm_clear_g_free(&value_to_free);
    }

    if (!stp_set) {
        /* Missing or invalid STP property means "no" */
        g_object_set(s_bridge, NM_SETTING_BRIDGE_STP, FALSE, NULL);
    }

    value = svGetValueStr(ifcfg, "DELAY", &value_to_free);
    if (value) {
        handle_bridge_option(NM_SETTING(s_bridge), stp, "DELAY", value, BRIDGE_OPT_TYPE_MAIN);
        nm_clear_g_free(&value_to_free);
    }

    value = svGetValueStr(ifcfg, "BRIDGING_OPTS", &value_to_free);
    if (value) {
        handle_bridging_opts(NM_SETTING(s_bridge),
                             stp,
                             value,
                             handle_bridge_option,
                             BRIDGE_OPT_TYPE_OPTION);
        nm_clear_g_free(&value_to_free);
    }

    read_bridge_vlans(ifcfg, "BRIDGE_VLANS", NM_SETTING(s_bridge), NM_SETTING_BRIDGE_VLANS);

    return (NMSetting *) g_steal_pointer(&s_bridge);
}

static NMConnection *
bridge_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection   *connection     = NULL;
    NMSetting      *con_setting    = NULL;
    NMSetting      *bridge_setting = NULL;
    NMSetting      *wired_setting  = NULL;
    NMSetting8021x *s_8021x        = NULL;
    GError         *local          = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);

    connection = nm_simple_connection_new();

    con_setting =
        make_connection_setting(file, ifcfg, NM_SETTING_BRIDGE_SETTING_NAME, NULL, _("Bridge"));
    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    bridge_setting = make_bridge_setting(ifcfg, file, error);
    if (!bridge_setting) {
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, bridge_setting);

    wired_setting = make_wired_setting(ifcfg, file, &s_8021x, &local);
    if (local && !g_error_matches(local, NM_UTILS_ERROR, NM_UTILS_ERROR_SETTING_MISSING)) {
        g_propagate_error(error, local);
        g_object_unref(connection);
        return NULL;
    }
    g_clear_error(&local);

    if (wired_setting)
        nm_connection_add_setting(connection, wired_setting);

    if (s_8021x)
        nm_connection_add_setting(connection, NM_SETTING(s_8021x));

    return connection;
}

static NMSetting *
make_bridge_port_setting(shvarFile *ifcfg)
{
    NMSetting    *s_port        = NULL;
    gs_free char *value_to_free = NULL;
    const char   *value;

    g_return_val_if_fail(ifcfg != NULL, FALSE);

    value = svGetValueStr(ifcfg, "BRIDGE_UUID", &value_to_free);
    if (!value)
        value = svGetValueStr(ifcfg, "BRIDGE", &value_to_free);
    if (value) {
        nm_clear_g_free(&value_to_free);

        s_port = nm_setting_bridge_port_new();
        value  = svGetValueStr(ifcfg, "BRIDGING_OPTS", &value_to_free);
        if (value) {
            handle_bridging_opts(s_port,
                                 FALSE,
                                 value,
                                 handle_bridge_option,
                                 BRIDGE_OPT_TYPE_PORT_OPTION);
            nm_clear_g_free(&value_to_free);
        }

        read_bridge_vlans(ifcfg, "BRIDGE_PORT_VLANS", s_port, NM_SETTING_BRIDGE_PORT_VLANS);
    }

    return s_port;
}

static NMSetting *
make_team_port_setting(shvarFile *ifcfg)
{
    NMSetting    *s_port;
    gs_free char *value = NULL;

    value = svGetValueStr_cp(ifcfg, "TEAM_PORT_CONFIG");
    if (!value)
        return NULL;

    s_port = nm_setting_team_port_new();
    g_object_set(s_port, NM_SETTING_TEAM_PORT_CONFIG, value, NULL);
    return s_port;
}

static gboolean
is_bond_device(const char *name, shvarFile *parsed)
{
    g_return_val_if_fail(name != NULL, FALSE);
    g_return_val_if_fail(parsed != NULL, FALSE);

    if (svGetValueBoolean(parsed, "BONDING_MASTER", FALSE))
        return TRUE;

    return FALSE;
}

static gboolean
is_vlan_device(const char *name, shvarFile *parsed)
{
    g_return_val_if_fail(name != NULL, FALSE);
    g_return_val_if_fail(parsed != NULL, FALSE);

    if (svGetValueBoolean(parsed, "VLAN", FALSE))
        return TRUE;

    return FALSE;
}

static gboolean
is_wifi_device(const char *name, shvarFile *parsed)
{
    const NMPlatformLink *pllink;

    g_return_val_if_fail(name != NULL, FALSE);
    g_return_val_if_fail(parsed != NULL, FALSE);

    pllink = nm_platform_link_get_by_ifname(NM_PLATFORM_GET, name);
    return pllink && pllink->type == NM_LINK_TYPE_WIFI;
}

static void
parse_prio_map_list(NMSettingVlan *s_vlan, shvarFile *ifcfg, const char *key, NMVlanPriorityMap map)
{
    gs_free char        *value = NULL;
    gs_free const char **list  = NULL;
    const char *const   *iter;
    const char          *v;

    v = svGetValueStr(ifcfg, key, &value);
    if (!v)
        return;
    list = nm_strsplit_set(v, ",");

    for (iter = list; iter && *iter; iter++) {
        if (!strchr(*iter, ':'))
            continue;
        if (!nm_setting_vlan_add_priority_str(s_vlan, map, *iter))
            PARSE_WARNING("invalid %s priority map item '%s'", key, *iter);
    }
}

static NMSetting *
make_vlan_setting(shvarFile *ifcfg, const char *file, GError **error)
{
    gs_unref_object NMSettingVlan *s_vlan     = NULL;
    gs_free char                  *parent     = NULL;
    gs_free char                  *iface_name = NULL;
    gs_free char                  *value      = NULL;
    const char                    *v          = NULL;
    int                            vlan_id    = -1;
    guint32                        vlan_flags = 0;
    int                            gvrp, reorder_hdr;

    v = svGetValueStr(ifcfg, "VLAN_ID", &value);
    if (v) {
        vlan_id = _nm_utils_ascii_str_to_int64(v, 10, 0, 4095, -1);
        if (vlan_id == -1) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Invalid VLAN_ID '%s'",
                        v);
            return NULL;
        }
    }

    /* Need DEVICE if we don't have a separate VLAN_ID property */
    iface_name = svGetValueStr_cp(ifcfg, "DEVICE");
    if (!iface_name && vlan_id < 0) {
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Missing DEVICE property; cannot determine VLAN ID");
        return NULL;
    }

    s_vlan = NM_SETTING_VLAN(nm_setting_vlan_new());

    /* Parent interface from PHYSDEV takes precedence if it exists */
    parent = svGetValueStr_cp(ifcfg, "PHYSDEV");

    if (iface_name) {
        v = strchr(iface_name, '.');
        if (v) {
            /* eth0.43; PHYSDEV is assumed from it if unknown */
            if (!parent) {
                parent = g_strndup(iface_name, v - iface_name);
                if (g_str_has_prefix(parent, "vlan")) {
                    /* Like initscripts, if no PHYSDEV and we get an obviously
                     * invalid parent interface from DEVICE, fail.
                     */
                    nm_clear_g_free(&parent);
                }
            }
            v++;
        } else {
            /* format like vlan43; PHYSDEV must be set */
            if (g_str_has_prefix(iface_name, "vlan"))
                v = iface_name + 4;
        }

        if (vlan_id == -1 && v) {
            /* Grab VLAN ID from interface name; The explicit VLAN_ID option takes precedence
             * over detecting the ID based on PHYSDEV.
             *
             * Note that older versions of NetworkManager had a bug and this would overwrite the
             * VLAN_ID in this case.
             */
            vlan_id = _nm_utils_ascii_str_to_int64(v, 10, 0, 4095, -1);
        }
    }

    if (vlan_id < 0) {
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Failed to determine VLAN ID from DEVICE or VLAN_ID");
        return NULL;
    }
    g_object_set(s_vlan, NM_SETTING_VLAN_ID, vlan_id, NULL);

    if (parent == NULL) {
        g_set_error_literal(error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Failed to determine VLAN parent from DEVICE or PHYSDEV");
        return NULL;
    }
    g_object_set(s_vlan, NM_SETTING_VLAN_PARENT, parent, NULL);

    v = svGetValueStr(ifcfg, "VLAN_PROTOCOL", &value);
    if (v) {
        g_object_set(s_vlan, NM_SETTING_VLAN_PROTOCOL, v, NULL);
    }

    vlan_flags |= NM_VLAN_FLAG_REORDER_HEADERS;

    gvrp = svGetValueBoolean(ifcfg, "GVRP", -1);
    if (gvrp > 0)
        vlan_flags |= NM_VLAN_FLAG_GVRP;

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "VLAN_FLAGS", &value);
    if (v) {
        gs_free const char **strv = NULL;
        const char *const   *ptr;

        strv = nm_strsplit_set(v, ", ");
        for (ptr = strv; ptr && *ptr; ptr++) {
            if (nm_streq(*ptr, "GVRP") && gvrp == -1)
                vlan_flags |= NM_VLAN_FLAG_GVRP;
            if (nm_streq(*ptr, "LOOSE_BINDING"))
                vlan_flags |= NM_VLAN_FLAG_LOOSE_BINDING;
            if (nm_streq(*ptr, "NO_REORDER_HDR"))
                vlan_flags &= ~NM_VLAN_FLAG_REORDER_HEADERS;
        }
    }

    reorder_hdr = svGetValueBoolean(ifcfg, "REORDER_HDR", -1);
    if (reorder_hdr != -1 && reorder_hdr != NM_FLAGS_HAS(vlan_flags, NM_VLAN_FLAG_REORDER_HEADERS))
        PARSE_WARNING("REORDER_HDR key is deprecated, use VLAN_FLAGS");

    if (svGetValueBoolean(ifcfg, "MVRP", FALSE))
        vlan_flags |= NM_VLAN_FLAG_MVRP;

    g_object_set(s_vlan, NM_SETTING_VLAN_FLAGS, vlan_flags, NULL);

    parse_prio_map_list(s_vlan, ifcfg, "VLAN_INGRESS_PRIORITY_MAP", NM_VLAN_INGRESS_MAP);
    parse_prio_map_list(s_vlan, ifcfg, "VLAN_EGRESS_PRIORITY_MAP", NM_VLAN_EGRESS_MAP);

    return NM_SETTING(g_steal_pointer(&s_vlan));
}

static NMConnection *
vlan_connection_from_ifcfg(const char *file, shvarFile *ifcfg, GError **error)
{
    NMConnection   *connection    = NULL;
    NMSetting      *con_setting   = NULL;
    NMSetting      *wired_setting = NULL;
    NMSetting      *vlan_setting  = NULL;
    NMSetting8021x *s_8021x       = NULL;
    GError         *local         = NULL;

    g_return_val_if_fail(file != NULL, NULL);
    g_return_val_if_fail(ifcfg != NULL, NULL);

    connection = nm_simple_connection_new();

    con_setting = make_connection_setting(file, ifcfg, NM_SETTING_VLAN_SETTING_NAME, NULL, "Vlan");
    if (!con_setting) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Failed to create connection setting");
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, con_setting);

    vlan_setting = make_vlan_setting(ifcfg, file, error);
    if (!vlan_setting) {
        g_object_unref(connection);
        return NULL;
    }
    nm_connection_add_setting(connection, vlan_setting);

    wired_setting = make_wired_setting(ifcfg, file, &s_8021x, &local);
    if (local && !g_error_matches(local, NM_UTILS_ERROR, NM_UTILS_ERROR_SETTING_MISSING)) {
        g_propagate_error(error, local);
        g_object_unref(connection);
        return NULL;
    }
    g_clear_error(&local);

    if (wired_setting)
        nm_connection_add_setting(connection, wired_setting);

    if (s_8021x)
        nm_connection_add_setting(connection, NM_SETTING(s_8021x));

    return connection;
}

static NMConnection *
create_unhandled_connection(const char *filename,
                            shvarFile  *ifcfg,
                            const char *type,
                            char      **out_spec)
{
    NMConnection *connection;
    NMSetting    *s_con;
    gs_free char *value = NULL;
    const char   *v;

    nm_assert(out_spec && !*out_spec);

    connection = nm_simple_connection_new();

    /* Get NAME, UUID, etc. We need to set a connection type (generic) and add
     * an empty type-specific setting as well, to make sure it passes
     * nm_connection_verify() later.
     */
    s_con = make_connection_setting(filename, ifcfg, NM_SETTING_GENERIC_SETTING_NAME, NULL, NULL);
    nm_connection_add_setting(connection, s_con);

    nm_connection_add_setting(connection, nm_setting_generic_new());

    /* Get a spec */
    v = svGetValueStr(ifcfg, "HWADDR", &value);
    if (v) {
        gs_free char *lower = g_ascii_strdown(v, -1);

        *out_spec = g_strdup_printf("%s:" NM_MATCH_SPEC_MAC_TAG "%s", type, lower);
        return connection;
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "SUBCHANNELS", &value);
    if (v) {
        *out_spec = g_strdup_printf("%s:" NM_MATCH_SPEC_S390_SUBCHANNELS_TAG "%s", type, v);
        return connection;
    }

    nm_clear_g_free(&value);
    v = svGetValueStr(ifcfg, "DEVICE", &value);
    if (v) {
        *out_spec = g_strdup_printf("%s:" NM_MATCH_SPEC_INTERFACE_NAME_TAG "=%s", type, v);
        return connection;
    }

    g_object_unref(connection);
    return NULL;
}

static void
check_dns_search_domains(shvarFile *ifcfg, NMSetting *s_ip4, NMSetting *s_ip6)
{
    if (!s_ip6)
        return;

    /* If there is no IPv4 config or it doesn't contain DNS searches,
     * read DOMAIN and put the domains into IPv6.
     */
    if (!s_ip4 || nm_setting_ip_config_get_num_dns_searches(NM_SETTING_IP_CONFIG(s_ip4)) == 0) {
        /* DNS searches */
        gs_free char *value = NULL;
        const char   *v;

        v = svGetValueStr(ifcfg, "DOMAIN", &value);
        if (v) {
            gs_free const char **searches = NULL;
            const char *const   *item;

            searches = nm_strsplit_set(v, " ");
            if (searches) {
                for (item = searches; *item; item++) {
                    if (!nm_setting_ip_config_add_dns_search(NM_SETTING_IP_CONFIG(s_ip6), *item))
                        PARSE_WARNING("duplicate DNS domain '%s'", *item);
                }
            }
        }
    }
}

static NMConnection *
connection_from_file_full(const char *filename,
                          const char *network_file, /* for unit tests only */
                          const char *test_type,    /* for unit tests only */
                          char      **out_unhandled,
                          GError    **error,
                          gboolean   *out_ignore_error)
{
    nm_auto_shvar_file_close shvarFile *main_ifcfg    = NULL;
    nm_auto_shvar_file_close shvarFile *network_ifcfg = NULL;
    gs_unref_object NMConnection       *connection    = NULL;
    gs_free char                       *type          = NULL;
    char                               *devtype, *bootproto;
    NMSetting                          *setting;
    NMSetting                          *s_ip4;
    NMSetting                          *s_ip6;
    const char                         *ifcfg_name       = NULL;
    gs_free char                       *s_tmp            = NULL;
    gboolean                            has_ip4_defroute = FALSE;
    gboolean                            has_complex_routes_v4;
    gboolean                            has_complex_routes_v6;

    g_return_val_if_fail(filename != NULL, NULL);
    g_return_val_if_fail(out_unhandled && !*out_unhandled, NULL);

    NM_SET_OUT(out_ignore_error, FALSE);

    /* Non-NULL only for unit tests; normally use /etc/sysconfig/network */
    if (!network_file)
        network_file = SYSCONFDIR "/sysconfig/network";

    ifcfg_name = utils_get_ifcfg_name(filename, TRUE);
    if (!ifcfg_name) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Ignoring connection '%s' because it's not an ifcfg file",
                    filename);
        return NULL;
    }

    main_ifcfg = svOpenFile(filename, error);
    if (!main_ifcfg)
        return NULL;

    if (!svGetValueBoolean(main_ifcfg, "NM_CONTROLLED", TRUE)) {
        connection = create_unhandled_connection(filename, main_ifcfg, "unmanaged", out_unhandled);
        if (!connection) {
            NM_SET_OUT(out_ignore_error, TRUE);
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_FAILED,
                        "NM_CONTROLLED was false but device was not uniquely identified; device "
                        "will be managed");
        }
        return g_steal_pointer(&connection);
    }

    if (NM_IN_STRSET(svGetValueStr(main_ifcfg, "DEVICE", &s_tmp), "lo")) {
        /* "lo" is not handled by NetworkManager and we ignore it. */
    } else
        svWarnInvalid(main_ifcfg, "ifcfg", _NMLOG_DOMAIN);
    nm_clear_g_free(&s_tmp);

    network_ifcfg = svOpenFile(network_file, NULL);
    /* we don't call svWarnInvalid(network_ifcfg), because we will load this file for
     * every profile. So we would get a large number of duplicate warnings. */

    /* iBFT is handled by nm-initrd-generator during boot. */
    bootproto = svGetValueStr_cp(main_ifcfg, "BOOTPROTO");
    if (bootproto && !g_ascii_strcasecmp(bootproto, "ibft")) {
        NM_SET_OUT(out_ignore_error, TRUE);
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "Ignoring iBFT configuration");
        g_free(bootproto);
        return NULL;
    }
    g_free(bootproto);

    devtype = svGetValueStr_cp(main_ifcfg, "DEVICETYPE");
    if (devtype) {
        if (!g_ascii_strcasecmp(devtype, TYPE_TEAM))
            type = g_strdup(TYPE_TEAM);
        else if (!g_ascii_strcasecmp(devtype, TYPE_TEAM_PORT)) {
            gs_free char *device = NULL;

            type   = svGetValueStr_cp(main_ifcfg, "TYPE");
            device = svGetValueStr_cp(main_ifcfg, "DEVICE");

            if (type) {
                /* nothing to do */
            } else if (device && is_vlan_device(device, main_ifcfg))
                type = g_strdup(TYPE_VLAN);
            else
                type = g_strdup(TYPE_ETHERNET);
        }
        g_free(devtype);
    }
    if (!type) {
        gs_free char *t = NULL;

        /* Team and TeamPort types are also accepted by the mere
         * presence of TEAM_CONFIG/TEAM_MASTER. They don't require
         * DEVICETYPE. */
        t = svGetValueStr_cp(main_ifcfg, "TEAM_CONFIG");
        if (t)
            type = g_strdup(TYPE_TEAM);
    }

    if (!type)
        type = svGetValueStr_cp(main_ifcfg, "TYPE");

    if (!type) {
        gs_free char *tmp = NULL;
        char         *device;

        if ((tmp = svGetValueStr_cp(main_ifcfg, "IPV6TUNNELIPV4"))) {
            NM_SET_OUT(out_ignore_error, TRUE);
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Ignoring unsupported connection due to IPV6TUNNELIPV4");
            return NULL;
        }

        device = svGetValueStr_cp(main_ifcfg, "DEVICE");
        if (!device) {
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "File '%s' had neither TYPE nor DEVICE keys",
                        filename);
            return NULL;
        }

        if (!strcmp(device, "lo")) {
            NM_SET_OUT(out_ignore_error, TRUE);
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Ignoring loopback device config");
            g_free(device);
            return NULL;
        }

        if (!test_type) {
            if (is_bond_device(device, main_ifcfg))
                type = g_strdup(TYPE_BOND);
            else if (is_vlan_device(device, main_ifcfg))
                type = g_strdup(TYPE_VLAN);
            else if (is_wifi_device(device, main_ifcfg))
                type = g_strdup(TYPE_WIRELESS);
            else {
                gs_free char *p_path = NULL;
                char         *p_device;
                gsize         i;

                /* network-functions detects DEVICETYPE based on the ifcfg-* name and the existence
                 * of a ifup script:
                 *    [ -z "$DEVICETYPE" ] && DEVICETYPE=$(echo ${DEVICE} | sed "s/[0-9]*$//")
                 * later...
                 *    OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-${DEVICETYPE}"
                 * */
#define IFUP_PATH_PREFIX "/etc/sysconfig/network-scripts/ifup-"
                i        = strlen(device);
                p_path   = g_malloc(NM_STRLEN(IFUP_PATH_PREFIX) + i + 1);
                p_device = &p_path[NM_STRLEN(IFUP_PATH_PREFIX)];
                memcpy(p_device, device, i + 1);

                /* strip trailing numbers */
                while (i >= 1) {
                    i--;
                    if (p_device[i] < '0' || p_device[i] > '9')
                        break;
                    p_device[i] = '\0';
                }

                if (nm_streq(p_device, "eth"))
                    type = g_strdup(TYPE_ETHERNET);
                else if (nm_streq(p_device, "wireless"))
                    type = g_strdup(TYPE_WIRELESS);
                else if (p_device[0]) {
                    memcpy(p_path, IFUP_PATH_PREFIX, NM_STRLEN(IFUP_PATH_PREFIX));
                    if (access(p_path, X_OK) == 0) {
                        /* for all other types, this is not something we want to handle. */
                        NM_SET_OUT(out_ignore_error, TRUE);
                        g_set_error(
                            error,
                            NM_SETTINGS_ERROR,
                            NM_SETTINGS_ERROR_INVALID_CONNECTION,
                            "Ignore script for unknown device type which has a matching %s script",
                            p_path);
                        return NULL;
                    }
                }

                if (!type)
                    type = g_strdup(TYPE_ETHERNET);
            }
        } else {
            /* For the unit tests, there won't necessarily be any
             * adapters of the connection's type in the system so the
             * type can't be tested with ioctls.
             */
            type = g_strdup(test_type);
        }

        g_free(device);
    } else {
        /* Check for IBM s390 CTC devices and call them Ethernet */
        if (g_strcmp0(type, "CTC") == 0) {
            g_free(type);
            type = g_strdup(TYPE_ETHERNET);
        }
    }

    if (nm_streq0(type, TYPE_ETHERNET)) {
        gs_free char *bond_options = NULL;

        if (svGetValueStr(main_ifcfg, "BONDING_OPTS", &bond_options)) {
            /* initscripts consider these as bond controllers */
            g_free(type);
            type = g_strdup(TYPE_BOND);
        }
    }

    if (svGetValueBoolean(main_ifcfg, "BONDING_MASTER", FALSE)
        && g_ascii_strcasecmp(type, TYPE_BOND)) {
        g_set_error(error,
                    NM_SETTINGS_ERROR,
                    NM_SETTINGS_ERROR_INVALID_CONNECTION,
                    "BONDING_MASTER=yes key only allowed in TYPE=bond connections");
        return NULL;
    }

    /* Construct the connection */
    if (!g_ascii_strcasecmp(type, TYPE_ETHERNET))
        connection = wired_connection_from_ifcfg(filename, main_ifcfg, error);
    else if (!g_ascii_strcasecmp(type, TYPE_WIRELESS))
        connection = wireless_connection_from_ifcfg(filename, main_ifcfg, error);
    else if (!g_ascii_strcasecmp(type, TYPE_INFINIBAND))
        connection = infiniband_connection_from_ifcfg(filename, main_ifcfg, error);
    else if (!g_ascii_strcasecmp(type, TYPE_BOND))
        connection = bond_connection_from_ifcfg(filename, main_ifcfg, error);
    else if (!g_ascii_strcasecmp(type, TYPE_TEAM))
        connection = team_connection_from_ifcfg(filename, main_ifcfg, error);
    else if (!g_ascii_strcasecmp(type, TYPE_VLAN))
        connection = vlan_connection_from_ifcfg(filename, main_ifcfg, error);
    else if (!g_ascii_strcasecmp(type, TYPE_BRIDGE))
        connection = bridge_connection_from_ifcfg(filename, main_ifcfg, error);
    else {
        connection =
            create_unhandled_connection(filename, main_ifcfg, "unrecognized", out_unhandled);
        if (!connection) {
            PARSE_WARNING("connection type was unrecognized but device was not uniquely "
                          "identified; device may be managed");
            g_set_error(error,
                        NM_SETTINGS_ERROR,
                        NM_SETTINGS_ERROR_INVALID_CONNECTION,
                        "Failed to read unrecognized connection");
        }
        return g_steal_pointer(&connection);
    }

    if (!connection)
        return NULL;

    parse_ethtool_options(main_ifcfg, connection);

    has_complex_routes_v4 = utils_has_complex_routes(filename, AF_INET);
    has_complex_routes_v6 = utils_has_complex_routes(filename, AF_INET6);

    if (has_complex_routes_v4 || has_complex_routes_v6) {
        if (has_complex_routes_v4 && !has_complex_routes_v6)
            PARSE_WARNING("'rule-' file is present; you will need to use a dispatcher script to "
                          "apply these routes");
        else if (has_complex_routes_v6 && !has_complex_routes_v4)
            PARSE_WARNING("'rule6-' file is present; you will need to use a dispatcher script to "
                          "apply these routes");
        else
            PARSE_WARNING("'rule-' and 'rule6-' files are present; you will need to use a "
                          "dispatcher script to apply these routes");
    }

    s_ip6 = make_ip6_setting(main_ifcfg,
                             network_ifcfg,
                             !has_complex_routes_v4 && !has_complex_routes_v6,
                             error);
    if (!s_ip6)
        return NULL;
    nm_connection_add_setting(connection, s_ip6);

    s_ip4 = make_ip4_setting(main_ifcfg,
                             network_ifcfg,
                             !has_complex_routes_v4 && !has_complex_routes_v6,
                             &has_ip4_defroute,
                             error);
    if (!s_ip4)
        return NULL;
    read_aliases(NM_SETTING_IP_CONFIG(s_ip4),
                 !has_ip4_defroute
                     && !nm_setting_ip_config_get_gateway(NM_SETTING_IP_CONFIG(s_ip4)),
                 filename);
    nm_connection_add_setting(connection, s_ip4);

    read_routing_rules(main_ifcfg,
                       !has_complex_routes_v4 && !has_complex_routes_v6,
                       NM_SETTING_IP_CONFIG(s_ip4),
                       NM_SETTING_IP_CONFIG(s_ip6));

    setting = make_sriov_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_tc_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    /* For backwards compatibility, if IPv4 is disabled or the
     * config fails for some reason, we read DOMAIN and put the
     * values into IPv6 config instead of IPv4.
     */
    check_dns_search_domains(main_ifcfg, s_ip4, s_ip6);

    setting = make_proxy_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_hostname_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_user_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_match_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_bridge_port_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_bond_port_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    setting = make_team_port_setting(main_ifcfg);
    if (setting)
        nm_connection_add_setting(connection, setting);

    if (!make_dcb_setting(main_ifcfg, &setting, error))
        return NULL;
    if (setting)
        nm_connection_add_setting(connection, setting);

    if (!nm_connection_normalize(connection, NULL, NULL, error))
        return NULL;

    return g_steal_pointer(&connection);
}

NMConnection *
connection_from_file(const char *filename,
                     char      **out_unhandled,
                     GError    **error,
                     gboolean   *out_ignore_error)
{
    return connection_from_file_full(filename, NULL, NULL, out_unhandled, error, out_ignore_error);
}

NMConnection *
nmtst_connection_from_file(const char *filename,
                           const char *network_file,
                           const char *test_type,
                           char      **out_unhandled,
                           GError    **error)
{
    return connection_from_file_full(filename, network_file, test_type, out_unhandled, error, NULL);
}
