/* 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-utils.h"

#include <stdlib.h>

#include "libnm-core-intern/nm-core-internal.h"
#include "NetworkManagerUtils.h"

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

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

gboolean
nms_ifcfg_rh_utils_parse_unhandled_spec(const char  *unhandled_spec,
                                        const char **out_unmanaged_spec,
                                        const char **out_unrecognized_spec)
{
    if (unhandled_spec) {
        if (NM_STR_HAS_PREFIX(unhandled_spec, "unmanaged:")) {
            NM_SET_OUT(out_unmanaged_spec, &unhandled_spec[NM_STRLEN("unmanaged:")]);
            NM_SET_OUT(out_unrecognized_spec, NULL);
            return TRUE;
        }
        if (NM_STR_HAS_PREFIX(unhandled_spec, "unrecognized:")) {
            NM_SET_OUT(out_unmanaged_spec, NULL);
            NM_SET_OUT(out_unrecognized_spec, &unhandled_spec[NM_STRLEN("unrecognized:")]);
            return TRUE;
        }
    }
    NM_SET_OUT(out_unmanaged_spec, NULL);
    NM_SET_OUT(out_unrecognized_spec, NULL);
    return FALSE;
}

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

/*
 * Check ';[a-fA-F0-9]{8}' file suffix used for temporary files by rpm when
 * installing packages.
 *
 * Implementation taken from upstart.
 */
static gboolean
check_rpm_temp_suffix(const char *path)
{
    const char *ptr;

    g_return_val_if_fail(path != NULL, FALSE);

    /* Matches *;[a-fA-F0-9]{8}; used by rpm */
    ptr = strrchr(path, ';');
    if (ptr && strspn(ptr + 1, "abcdefABCDEF0123456789") == 8 && !ptr[9])
        return TRUE;
    return FALSE;
}

static gboolean
check_suffix(const char *base, const char *tag)
{
    int len, tag_len;

    g_return_val_if_fail(base != NULL, TRUE);
    g_return_val_if_fail(tag != NULL, TRUE);

    len     = strlen(base);
    tag_len = strlen(tag);
    if ((len > tag_len) && !g_ascii_strcasecmp(base + len - tag_len, tag))
        return TRUE;
    return FALSE;
}

gboolean
utils_should_ignore_file(const char *filename, gboolean only_ifcfg)
{
    gs_free char *base = NULL;

    g_return_val_if_fail(filename != NULL, TRUE);

    base = g_path_get_basename(filename);

    /* Only handle ifcfg, keys, and routes files */
    if (strncmp(base, IFCFG_TAG, strlen(IFCFG_TAG)) != 0) {
        if (only_ifcfg)
            return TRUE;
        else if (strncmp(base, KEYS_TAG, strlen(KEYS_TAG)) != 0
                 && strncmp(base, ROUTE_TAG, strlen(ROUTE_TAG)) != 0
                 && strncmp(base, ROUTE6_TAG, strlen(ROUTE6_TAG)) != 0)
            return TRUE;
    }

    /* But not those that have certain suffixes */
    if (check_suffix(base, BAK_TAG) || check_suffix(base, TILDE_TAG) || check_suffix(base, ORIG_TAG)
        || check_suffix(base, REJ_TAG) || check_suffix(base, RPMNEW_TAG)
        || check_suffix(base, AUGNEW_TAG) || check_suffix(base, AUGTMP_TAG)
        || check_rpm_temp_suffix(base))
        return TRUE;

    return FALSE;
}

char *
utils_cert_path(const char *parent, const char *suffix, const char *extension)
{
    gs_free char *dir = NULL;
    const char   *name;

    g_return_val_if_fail(parent, NULL);
    g_return_val_if_fail(suffix, NULL);
    g_return_val_if_fail(extension, NULL);

    name = utils_get_ifcfg_name(parent, FALSE);
    g_return_val_if_fail(name, NULL);

    dir = g_path_get_dirname(parent);
    return g_strdup_printf("%s/%s-%s.%s", dir, name, suffix, extension);
}

const char *
utils_get_ifcfg_name(const char *file, gboolean only_ifcfg)
{
    const char *name;

    g_return_val_if_fail(file != NULL, NULL);

    name = strrchr(file, '/');
    if (!name)
        name = file;
    else
        name++;
    if (!*name)
        return NULL;

#define MATCH_TAG_AND_RETURN(name, TAG)                \
    G_STMT_START                                       \
    {                                                  \
        if (strncmp(name, TAG, NM_STRLEN(TAG)) == 0) { \
            name += NM_STRLEN(TAG);                    \
            if (name[0] == '\0')                       \
                return NULL;                           \
            else                                       \
                return name;                           \
        }                                              \
    }                                                  \
    G_STMT_END

    /* Do not detect alias files and return 'eth0:0' instead of 'eth0'.
     * Unfortunately, we cannot be sure that our files don't contain colons,
     * so we cannot reject files with colons.
     *
     * Instead, you must not call utils_get_ifcfg_name() with an alias file
     * or files that are ignored. */
    MATCH_TAG_AND_RETURN(name, IFCFG_TAG);
    if (!only_ifcfg) {
        MATCH_TAG_AND_RETURN(name, KEYS_TAG);
        MATCH_TAG_AND_RETURN(name, ROUTE_TAG);
        MATCH_TAG_AND_RETURN(name, ROUTE6_TAG);
    }

    return NULL;
}

/* Used to get any ifcfg/extra file path from any other ifcfg/extra path
 * in the form <tag><name>.
 */
static char *
utils_get_extra_path(const char *parent, const char *tag)
{
    char       *item_path = NULL, *dirname;
    const char *name;

    g_return_val_if_fail(parent != NULL, NULL);
    g_return_val_if_fail(tag != NULL, NULL);

    dirname = g_path_get_dirname(parent);
    if (!dirname)
        g_return_val_if_reached(NULL);

    name = utils_get_ifcfg_name(parent, FALSE);
    if (name) {
        if (!strcmp(dirname, "."))
            item_path = g_strdup_printf("%s%s", tag, name);
        else
            item_path = g_strdup_printf("%s/%s%s", dirname, tag, name);
    }
    g_free(dirname);

    return item_path;
}

char *
utils_get_ifcfg_path(const char *parent)
{
    return utils_get_extra_path(parent, IFCFG_TAG);
}

char *
utils_get_keys_path(const char *parent)
{
    return utils_get_extra_path(parent, KEYS_TAG);
}

char *
utils_get_route_path(const char *parent)
{
    return utils_get_extra_path(parent, ROUTE_TAG);
}

char *
utils_get_route6_path(const char *parent)
{
    return utils_get_extra_path(parent, ROUTE6_TAG);
}

shvarFile *
utils_get_extra_ifcfg(const char *parent, const char *tag, gboolean should_create)
{
    shvarFile *ifcfg = NULL;
    char      *path;

    path = utils_get_extra_path(parent, tag);
    if (!path)
        return NULL;

    if (should_create && !g_file_test(path, G_FILE_TEST_EXISTS))
        ifcfg = svCreateFile(path);

    if (!ifcfg)
        ifcfg = svOpenFile(path, NULL);

    g_free(path);
    return ifcfg;
}

shvarFile *
utils_get_keys_ifcfg(const char *parent, gboolean should_create)
{
    return utils_get_extra_ifcfg(parent, KEYS_TAG, should_create);
}

shvarFile *
utils_get_route_ifcfg(const char *parent, gboolean should_create)
{
    return utils_get_extra_ifcfg(parent, ROUTE_TAG, should_create);
}

/* Finds out if route file has new or older format
 * Returns TRUE  - new syntax (ADDRESS<n>=a.b.c.d ...), error opening file or empty
 *         FALSE - older syntax, i.e. argument to 'ip route add' (1.2.3.0/24 via 11.22.33.44)
 */
gboolean
utils_has_route_file_new_syntax(const char *filename)
{
    gs_free char *contents_data = NULL;
    gsize         len;

    g_return_val_if_fail(filename != NULL, TRUE);

    if (!g_file_get_contents(filename, &contents_data, &len, NULL))
        return TRUE;

    return utils_has_route_file_new_syntax_content(contents_data, len);
}

gboolean
utils_has_route_file_new_syntax_content(const char *contents, gsize len)
{
    if (len <= 0)
        return TRUE;

    while (TRUE) {
        const char *line = contents;
        char       *eol;
        gboolean    found = FALSE;

        /* matches regex "^[[:space:]]*ADDRESS[0-9]+=" */

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

        line = nm_str_skip_leading_spaces(line);
        if (NM_STR_HAS_PREFIX(line, "ADDRESS")) {
            line += NM_STRLEN("ADDRESS");
            if (g_ascii_isdigit(line[0])) {
                while (g_ascii_isdigit((++line)[0])) {
                    /* pass */
                }
                if (line[0] == '=')
                    found = TRUE;
            }
        }

        if (eol) {
            /* restore the line ending. We don't want to mangle the content from
             * POV of the caller. */
            eol[0] = '\n';
        }

        if (found)
            return TRUE;
        if (!eol)
            return FALSE;
    }
}

gboolean
utils_has_complex_routes(const char *filename, int addr_family)
{
    g_return_val_if_fail(filename, TRUE);

    if (NM_IN_SET(addr_family, AF_UNSPEC, AF_INET)) {
        gs_free char *rules = utils_get_extra_path(filename, RULE_TAG);

        if (g_file_test(rules, G_FILE_TEST_EXISTS))
            return TRUE;
    }

    if (NM_IN_SET(addr_family, AF_UNSPEC, AF_INET6)) {
        gs_free char *rules = utils_get_extra_path(filename, RULE6_TAG);
        if (g_file_test(rules, G_FILE_TEST_EXISTS))
            return TRUE;
    }

    return FALSE;
}

/* Find out if the 'alias' file name might be an alias file for 'ifcfg' file name,
 * or any alias when 'ifcfg' is NULL. Does not check that it's actually a valid
 * alias name; that happens in reader.c
 */
gboolean
utils_is_ifcfg_alias_file(const char *alias, const char *ifcfg)
{
    g_return_val_if_fail(alias != NULL, FALSE);

    if (strncmp(alias, IFCFG_TAG, strlen(IFCFG_TAG)))
        return FALSE;

    if (ifcfg) {
        size_t len = strlen(ifcfg);

        return (strncmp(alias, ifcfg, len) == 0 && alias[len] == ':');
    } else {
        return (strchr(alias, ':') != NULL);
    }
}

char *
utils_detect_ifcfg_path(const char *path, gboolean only_ifcfg)
{
    const char *base;

    g_return_val_if_fail(path != NULL, NULL);

    if (utils_should_ignore_file(path, only_ifcfg))
        return NULL;

    base = strrchr(path, '/');
    if (!base)
        base = path;
    else
        base += 1;

    if (NM_STR_HAS_PREFIX(base, IFCFG_TAG)) {
        if (base[NM_STRLEN(IFCFG_TAG)] == '\0')
            return NULL;
        if (utils_is_ifcfg_alias_file(base, NULL)) {
            gs_free char *ifcfg = NULL;
            char         *ptr;

            ifcfg = g_strdup(path);
            ptr   = strrchr(ifcfg, ':');
            if (ptr && ptr > ifcfg && !strchr(ptr, '/')) {
                *ptr = '\0';
                if (g_file_test(ifcfg, G_FILE_TEST_EXISTS)) {
                    /* the file has a colon, so it is probably an alias.
                     * To be ~more~ certain that this is an alias file,
                     * check whether a corresponding base file exists. */
                    if (only_ifcfg)
                        return NULL;
                    return g_steal_pointer(&ifcfg);
                }
            }
        }
        return g_strdup(path);
    }

    if (only_ifcfg)
        return NULL;
    return utils_get_ifcfg_path(path);
}

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

const char *const _nm_ethtool_ifcfg_names[] = {
#define ETHT_NAME(eid, ename) [eid] = "" ename ""
    /* indexed by NMEthtoolID */
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_ADAPTIVE_RX, "adaptive-rx"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_ADAPTIVE_TX, "adaptive-tx"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_FRAMES, "rx-frames"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_FRAMES_HIGH, "rx-frames-high"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_FRAMES_IRQ, "rx-frames-irq"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_FRAMES_LOW, "rx-frames-low"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_PKT_RATE_HIGH, "pkt-rate-high"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_PKT_RATE_LOW, "pkt-rate-low"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_USECS, "rx-usecs"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_USECS_HIGH, "rx-usecs-high"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_USECS_IRQ, "rx-usecs-irq"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_RX_USECS_LOW, "rx-usecs-low"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_SAMPLE_INTERVAL, "sample-interval"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_STATS_BLOCK_USECS, "stats-block-usecs"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_FRAMES, "tx-frames"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_FRAMES_HIGH, "tx-frames-high"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_FRAMES_IRQ, "tx-frames-irq"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_FRAMES_LOW, "tx-frames-low"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_USECS, "tx-usecs"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_USECS_HIGH, "tx-usecs-high"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_USECS_IRQ, "tx-usecs-irq"),
    ETHT_NAME(NM_ETHTOOL_ID_COALESCE_TX_USECS_LOW, "tx-usecs-low"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_ESP_HW_OFFLOAD, "esp-hw-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_ESP_TX_CSUM_HW_OFFLOAD, "esp-tx-csum-hw-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_FCOE_MTU, "fcoe-mtu"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_GRO, "gro"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_GSO, "gso"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_HIGHDMA, "highdma"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_HW_TC_OFFLOAD, "hw-tc-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_L2_FWD_OFFLOAD, "l2-fwd-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_LOOPBACK, "loopback"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_LRO, "lro"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_MACSEC_HW_OFFLOAD, "macsec-hw-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_NTUPLE, "ntuple"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX, "rx"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RXHASH, "rxhash"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RXVLAN, "rxvlan"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_ALL, "rx-all"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_FCS, "rx-fcs"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_GRO_HW, "rx-gro-hw"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_GRO_LIST, "rx-gro-list"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_UDP_GRO_FORWARDING, "rx-udp-gro-forwarding"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_UDP_TUNNEL_PORT_OFFLOAD, "rx-udp_tunnel-port-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_VLAN_FILTER, "rx-vlan-filter"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_VLAN_STAG_FILTER, "rx-vlan-stag-filter"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_RX_VLAN_STAG_HW_PARSE, "rx-vlan-stag-hw-parse"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_SG, "sg"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TLS_HW_RECORD, "tls-hw-record"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TLS_HW_RX_OFFLOAD, "tls-hw-rx-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TLS_HW_TX_OFFLOAD, "tls-hw-tx-offload"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TSO, "tso"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX, "tx"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TXVLAN, "txvlan"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_FCOE_CRC, "tx-checksum-fcoe-crc"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_IPV4, "tx-checksum-ipv4"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_IPV6, "tx-checksum-ipv6"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_IP_GENERIC, "tx-checksum-ip-generic"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_SCTP, "tx-checksum-sctp"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_ESP_SEGMENTATION, "tx-esp-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_FCOE_SEGMENTATION, "tx-fcoe-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_GRE_CSUM_SEGMENTATION, "tx-gre-csum-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_GRE_SEGMENTATION, "tx-gre-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_GSO_LIST, "tx-gso-list"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_GSO_PARTIAL, "tx-gso-partial"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_GSO_ROBUST, "tx-gso-robust"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_IPXIP4_SEGMENTATION, "tx-ipxip4-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_IPXIP6_SEGMENTATION, "tx-ipxip6-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_NOCACHE_COPY, "tx-nocache-copy"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_SCATTER_GATHER, "tx-scatter-gather"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_SCATTER_GATHER_FRAGLIST, "tx-scatter-gather-fraglist"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_SCTP_SEGMENTATION, "tx-sctp-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_TCP6_SEGMENTATION, "tx-tcp6-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_TCP_ECN_SEGMENTATION, "tx-tcp-ecn-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_TCP_MANGLEID_SEGMENTATION, "tx-tcp-mangleid-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_TCP_SEGMENTATION, "tx-tcp-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_TUNNEL_REMCSUM_SEGMENTATION,
              "tx-tunnel-remcsum-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_UDP_SEGMENTATION, "tx-udp-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_UDP_TNL_CSUM_SEGMENTATION, "tx-udp_tnl-csum-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_UDP_TNL_SEGMENTATION, "tx-udp_tnl-segmentation"),
    ETHT_NAME(NM_ETHTOOL_ID_FEATURE_TX_VLAN_STAG_HW_INSERT, "tx-vlan-stag-hw-insert"),
    ETHT_NAME(NM_ETHTOOL_ID_PAUSE_AUTONEG, "pause-autoneg"),
    ETHT_NAME(NM_ETHTOOL_ID_PAUSE_RX, "pause-rx"),
    ETHT_NAME(NM_ETHTOOL_ID_PAUSE_TX, "pause-tx"),
    ETHT_NAME(NM_ETHTOOL_ID_RING_RX, "rx"),
    ETHT_NAME(NM_ETHTOOL_ID_RING_RX_JUMBO, "rx-jumbo"),
    ETHT_NAME(NM_ETHTOOL_ID_RING_RX_MINI, "rx-mini"),
    ETHT_NAME(NM_ETHTOOL_ID_RING_TX, "tx"),
};

static NM_UTILS_STRING_TABLE_LOOKUP_DEFINE(
    _get_ethtoolid_coalesce_by_name,
    NMEthtoolID,
    { nm_assert(name); },
    { return NM_ETHTOOL_ID_UNKNOWN; },
    {"adaptive-rx", NM_ETHTOOL_ID_COALESCE_ADAPTIVE_RX},
    {"adaptive-tx", NM_ETHTOOL_ID_COALESCE_ADAPTIVE_TX},
    {"pkt-rate-high", NM_ETHTOOL_ID_COALESCE_PKT_RATE_HIGH},
    {"pkt-rate-low", NM_ETHTOOL_ID_COALESCE_PKT_RATE_LOW},
    {"rx-frames", NM_ETHTOOL_ID_COALESCE_RX_FRAMES},
    {"rx-frames-high", NM_ETHTOOL_ID_COALESCE_RX_FRAMES_HIGH},
    {"rx-frames-irq", NM_ETHTOOL_ID_COALESCE_RX_FRAMES_IRQ},
    {"rx-frames-low", NM_ETHTOOL_ID_COALESCE_RX_FRAMES_LOW},
    {"rx-usecs", NM_ETHTOOL_ID_COALESCE_RX_USECS},
    {"rx-usecs-high", NM_ETHTOOL_ID_COALESCE_RX_USECS_HIGH},
    {"rx-usecs-irq", NM_ETHTOOL_ID_COALESCE_RX_USECS_IRQ},
    {"rx-usecs-low", NM_ETHTOOL_ID_COALESCE_RX_USECS_LOW},
    {"sample-interval", NM_ETHTOOL_ID_COALESCE_SAMPLE_INTERVAL},
    {"stats-block-usecs", NM_ETHTOOL_ID_COALESCE_STATS_BLOCK_USECS},
    {"tx-frames", NM_ETHTOOL_ID_COALESCE_TX_FRAMES},
    {"tx-frames-high", NM_ETHTOOL_ID_COALESCE_TX_FRAMES_HIGH},
    {"tx-frames-irq", NM_ETHTOOL_ID_COALESCE_TX_FRAMES_IRQ},
    {"tx-frames-low", NM_ETHTOOL_ID_COALESCE_TX_FRAMES_LOW},
    {"tx-usecs", NM_ETHTOOL_ID_COALESCE_TX_USECS},
    {"tx-usecs-high", NM_ETHTOOL_ID_COALESCE_TX_USECS_HIGH},
    {"tx-usecs-irq", NM_ETHTOOL_ID_COALESCE_TX_USECS_IRQ},
    {"tx-usecs-low", NM_ETHTOOL_ID_COALESCE_TX_USECS_LOW}, );

static NM_UTILS_STRING_TABLE_LOOKUP_DEFINE(
    _get_ethtoolid_feature_by_name,
    NMEthtoolID,
    { nm_assert(name); },
    { return NM_ETHTOOL_ID_UNKNOWN; },

    /* Map the names from kernel/ethtool/ifcfg to NMEthtoolID. Note that ethtool utility has built-in
     * features and NetworkManager's API follows the naming of these built-in features, whenever
     * they exist.
     * For example, NM's "ethtool.feature-ntuple" corresponds to ethtool utility's "ntuple"
     * feature. However the underlying kernel feature is called "rx-ntuple-filter" (as reported
     * for ETH_SS_FEATURES).
     *
     * With ethtool utility, whose command line we attempt to parse here, the user can also
     * specify the name of the underlying kernel feature directly. So, check whether that is
     * the case and if yes, map them to the corresponding NetworkManager's features.
     *
     * That is why there are duplicate IDs in this list. */
    {"esp-hw-offload", NM_ETHTOOL_ID_FEATURE_ESP_HW_OFFLOAD},
    {"esp-tx-csum-hw-offload", NM_ETHTOOL_ID_FEATURE_ESP_TX_CSUM_HW_OFFLOAD},
    {"fcoe-mtu", NM_ETHTOOL_ID_FEATURE_FCOE_MTU},
    {"gro", NM_ETHTOOL_ID_FEATURE_GRO},
    {"gso", NM_ETHTOOL_ID_FEATURE_GSO},
    {"highdma", NM_ETHTOOL_ID_FEATURE_HIGHDMA},
    {"hw-tc-offload", NM_ETHTOOL_ID_FEATURE_HW_TC_OFFLOAD},
    {"l2-fwd-offload", NM_ETHTOOL_ID_FEATURE_L2_FWD_OFFLOAD},
    {"loopback", NM_ETHTOOL_ID_FEATURE_LOOPBACK},
    {"lro", NM_ETHTOOL_ID_FEATURE_LRO},
    {"macsec-hw-offload", NM_ETHTOOL_ID_FEATURE_MACSEC_HW_OFFLOAD},
    {"ntuple", NM_ETHTOOL_ID_FEATURE_NTUPLE},
    {"rx", NM_ETHTOOL_ID_FEATURE_RX},
    {"rx-all", NM_ETHTOOL_ID_FEATURE_RX_ALL},
    {"rx-checksum", NM_ETHTOOL_ID_FEATURE_RX},  // kernel-only name
    {"rx-fcs", NM_ETHTOOL_ID_FEATURE_RX_FCS},
    {"rx-gro", NM_ETHTOOL_ID_FEATURE_GRO},  // kernel-only name
    {"rx-gro-hw", NM_ETHTOOL_ID_FEATURE_RX_GRO_HW},
    {"rx-gro-list", NM_ETHTOOL_ID_FEATURE_RX_GRO_LIST},
    {"rx-hashing", NM_ETHTOOL_ID_FEATURE_RXHASH},        // kernel-only name
    {"rx-lro", NM_ETHTOOL_ID_FEATURE_LRO},               // kernel-only name
    {"rx-ntuple-filter", NM_ETHTOOL_ID_FEATURE_NTUPLE},  // kernel-only name
    {"rx-udp-gro-forwarding", NM_ETHTOOL_ID_FEATURE_RX_UDP_GRO_FORWARDING},
    {"rx-udp_tunnel-port-offload", NM_ETHTOOL_ID_FEATURE_RX_UDP_TUNNEL_PORT_OFFLOAD},
    {"rx-vlan-filter", NM_ETHTOOL_ID_FEATURE_RX_VLAN_FILTER},
    {"rx-vlan-hw-parse", NM_ETHTOOL_ID_FEATURE_RXVLAN},  // kernel-only name
    {"rx-vlan-stag-filter", NM_ETHTOOL_ID_FEATURE_RX_VLAN_STAG_FILTER},
    {"rx-vlan-stag-hw-parse", NM_ETHTOOL_ID_FEATURE_RX_VLAN_STAG_HW_PARSE},
    {"rxhash", NM_ETHTOOL_ID_FEATURE_RXHASH},
    {"rxvlan", NM_ETHTOOL_ID_FEATURE_RXVLAN},
    {"sg", NM_ETHTOOL_ID_FEATURE_SG},
    {"tls-hw-record", NM_ETHTOOL_ID_FEATURE_TLS_HW_RECORD},
    {"tls-hw-rx-offload", NM_ETHTOOL_ID_FEATURE_TLS_HW_RX_OFFLOAD},
    {"tls-hw-tx-offload", NM_ETHTOOL_ID_FEATURE_TLS_HW_TX_OFFLOAD},
    {"tso", NM_ETHTOOL_ID_FEATURE_TSO},
    {"tx", NM_ETHTOOL_ID_FEATURE_TX},
    {"tx-checksum-fcoe-crc", NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_FCOE_CRC},
    {"tx-checksum-ip-generic", NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_IP_GENERIC},
    {"tx-checksum-ipv4", NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_IPV4},
    {"tx-checksum-ipv6", NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_IPV6},
    {"tx-checksum-sctp", NM_ETHTOOL_ID_FEATURE_TX_CHECKSUM_SCTP},
    {"tx-esp-segmentation", NM_ETHTOOL_ID_FEATURE_TX_ESP_SEGMENTATION},
    {"tx-fcoe-segmentation", NM_ETHTOOL_ID_FEATURE_TX_FCOE_SEGMENTATION},
    {"tx-generic-segmentation", NM_ETHTOOL_ID_FEATURE_GSO},  // kernel-only name
    {"tx-gre-csum-segmentation", NM_ETHTOOL_ID_FEATURE_TX_GRE_CSUM_SEGMENTATION},
    {"tx-gre-segmentation", NM_ETHTOOL_ID_FEATURE_TX_GRE_SEGMENTATION},
    {"tx-gso-list", NM_ETHTOOL_ID_FEATURE_TX_GSO_LIST},
    {"tx-gso-partial", NM_ETHTOOL_ID_FEATURE_TX_GSO_PARTIAL},
    {"tx-gso-robust", NM_ETHTOOL_ID_FEATURE_TX_GSO_ROBUST},
    {"tx-ipxip4-segmentation", NM_ETHTOOL_ID_FEATURE_TX_IPXIP4_SEGMENTATION},
    {"tx-ipxip6-segmentation", NM_ETHTOOL_ID_FEATURE_TX_IPXIP6_SEGMENTATION},
    {"tx-nocache-copy", NM_ETHTOOL_ID_FEATURE_TX_NOCACHE_COPY},
    {"tx-scatter-gather", NM_ETHTOOL_ID_FEATURE_TX_SCATTER_GATHER},
    {"tx-scatter-gather-fraglist", NM_ETHTOOL_ID_FEATURE_TX_SCATTER_GATHER_FRAGLIST},
    {"tx-sctp-segmentation", NM_ETHTOOL_ID_FEATURE_TX_SCTP_SEGMENTATION},
    {"tx-tcp-ecn-segmentation", NM_ETHTOOL_ID_FEATURE_TX_TCP_ECN_SEGMENTATION},
    {"tx-tcp-mangleid-segmentation", NM_ETHTOOL_ID_FEATURE_TX_TCP_MANGLEID_SEGMENTATION},
    {"tx-tcp-segmentation", NM_ETHTOOL_ID_FEATURE_TX_TCP_SEGMENTATION},
    {"tx-tcp6-segmentation", NM_ETHTOOL_ID_FEATURE_TX_TCP6_SEGMENTATION},
    {"tx-tunnel-remcsum-segmentation", NM_ETHTOOL_ID_FEATURE_TX_TUNNEL_REMCSUM_SEGMENTATION},
    {"tx-udp-segmentation", NM_ETHTOOL_ID_FEATURE_TX_UDP_SEGMENTATION},
    {"tx-udp_tnl-csum-segmentation", NM_ETHTOOL_ID_FEATURE_TX_UDP_TNL_CSUM_SEGMENTATION},
    {"tx-udp_tnl-segmentation", NM_ETHTOOL_ID_FEATURE_TX_UDP_TNL_SEGMENTATION},
    {"tx-vlan-hw-insert", NM_ETHTOOL_ID_FEATURE_TXVLAN},  // kernel-only name
    {"tx-vlan-stag-hw-insert", NM_ETHTOOL_ID_FEATURE_TX_VLAN_STAG_HW_INSERT},
    {"txvlan", NM_ETHTOOL_ID_FEATURE_TXVLAN}, );

static NM_UTILS_STRING_TABLE_LOOKUP_DEFINE(
    _get_ethtoolid_ring_by_name,
    NMEthtoolID,
    { nm_assert(name); },
    { return NM_ETHTOOL_ID_UNKNOWN; },
    {"rx", NM_ETHTOOL_ID_RING_RX},
    {"rx-jumbo", NM_ETHTOOL_ID_RING_RX_JUMBO},
    {"rx-mini", NM_ETHTOOL_ID_RING_RX_MINI},
    {"tx", NM_ETHTOOL_ID_RING_TX}, );

static NM_UTILS_STRING_TABLE_LOOKUP_DEFINE(
    _get_ethtoolid_pause_by_name,
    NMEthtoolID,
    { nm_assert(name); },
    { return NM_ETHTOOL_ID_UNKNOWN; },
    {"pause-autoneg", NM_ETHTOOL_ID_PAUSE_AUTONEG},
    {"pause-rx", NM_ETHTOOL_ID_PAUSE_RX},
    {"pause-tx", NM_ETHTOOL_ID_PAUSE_TX}, );

const NMEthtoolData *
nms_ifcfg_rh_utils_get_ethtool_by_name(const char *name, NMEthtoolType ethtool_type)
{
    NMEthtoolID id;

    switch (ethtool_type) {
    case NM_ETHTOOL_TYPE_COALESCE:
        id = _get_ethtoolid_coalesce_by_name(name);
        break;
    case NM_ETHTOOL_TYPE_FEATURE:
        id = _get_ethtoolid_feature_by_name(name);
        break;
    case NM_ETHTOOL_TYPE_RING:
        id = _get_ethtoolid_ring_by_name(name);
        break;
    case NM_ETHTOOL_TYPE_PAUSE:
        id = _get_ethtoolid_pause_by_name(name);
        break;
    default:
        nm_assert_not_reached();
        return NULL;
    }

    if (id == NM_ETHTOOL_ID_UNKNOWN)
        return NULL;

    nm_assert(_NM_INT_NOT_NEGATIVE(id));
    nm_assert(id < G_N_ELEMENTS(nm_ethtool_data));
    nm_assert(nm_ethtool_data[id]);
    nm_assert(nm_ethtool_data[id]->id == id);
    return nm_ethtool_data[id];
}

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

gboolean
nms_ifcfg_rh_utils_is_numbered_tag_impl(const char *key,
                                        const char *tag,
                                        gsize       tag_len,
                                        gint64     *out_idx)
{
    gint64 idx;

    nm_assert(key);
    nm_assert(tag);
    nm_assert(tag_len == strlen(tag));
    nm_assert(tag_len > 0);

    if (strncmp(key, tag, tag_len) != 0)
        return FALSE;

    key += tag_len;

    if (key[0] == '\0') {
        /* The key has no number suffix. We treat this also as a numbered
         * tag, and it is for certain tags like "IPADDR", but not so much
         * for others like "ROUTING_RULE_". The caller may want to handle
         * this case specially. */
        NM_SET_OUT(out_idx, -1);
        return TRUE;
    }

    if (!NM_STRCHAR_ALL(key, ch, g_ascii_isdigit(ch)))
        return FALSE;

    idx = _nm_utils_ascii_str_to_int64(key, 10, 0, G_MAXINT64, -1);
    if (idx == -1)
        return FALSE;

    NM_SET_OUT(out_idx, idx);
    return TRUE;
}

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

#define _KEY_TYPE(key, flags)                                     \
    {                                                             \
        .key_name  = "" key "",                                   \
        .key_flags = ((NMS_IFCFG_KEY_TYPE_WELL_KNOWN) | (flags)), \
    }

const NMSIfcfgKeyTypeInfo nms_ifcfg_well_known_keys[] = {
    _KEY_TYPE("ACCEPT_ALL_MAC_ADDRESSES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ACD_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ADDRESS", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("AP_ISOLATION", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ARPING_WAIT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("AUTH_RETRIES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("AUTOCONNECT_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("AUTOCONNECT_RETRIES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("AUTOCONNECT_SLAVES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BAND", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BONDING_MASTER", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BONDING_OPTS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BOND_PORT_PRIO", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BOND_PORT_QUEUE_ID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BOOTPROTO", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BRIDGE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BRIDGE_MACADDR", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BRIDGE_PORT_VLANS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BRIDGE_UUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BRIDGE_VLANS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BRIDGING_OPTS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BROWSER_ONLY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("BSSID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("CHANNEL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("CIPHER_GROUP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("CIPHER_PAIRWISE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("CONNECTED_MODE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("CONNECTION_METERED", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("CTCPROT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DCB", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FCOE_ADVERTISE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FCOE_ENABLE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FCOE_MODE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DCB_APP_FCOE_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FCOE_WILLING, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FIP_ADVERTISE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FIP_ENABLE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DCB_APP_FIP_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_FIP_WILLING, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_ISCSI_ADVERTISE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_ISCSI_ENABLE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DCB_APP_ISCSI_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_APP_ISCSI_WILLING, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PFC_ADVERTISE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PFC_ENABLE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PFC_UP, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PFC_WILLING, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_ADVERTISE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_ENABLE, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_ID, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_PCT, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_STRICT, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_UP2TC, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_UPPCT, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE(KEY_DCB_PG_WILLING, NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DEFAULTKEY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DEFROUTE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DELAY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DEVICE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DEVICETYPE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DEVTIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6C", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6_DUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6_HOSTNAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6_HOSTNAME_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6_IAID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6_PD_HINT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPV6_SEND_HOSTNAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_CLIENT_ID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_FQDN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_HOSTNAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_HOSTNAME_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_IAID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_REJECT_SERVERS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_SEND_HOSTNAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCP_VENDOR_CLASS_IDENTIFIER", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPv6_DUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DHCPv6_IAID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DNS", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("DNS_OVER_TLS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("DOMAIN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ESSID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ETHTOOL_OPTS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ETHTOOL_WAKE_ON_LAN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("FILS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("FILTER", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("GATEWAY", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("GATEWAYDEV", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("GATEWAY_PING_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("GENERATE_MAC_ADDRESS_MASK", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("GVRP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("HOSTNAME_FROM_DHCP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("HOSTNAME_FROM_DNS_LOOKUP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("HOSTNAME_ONLY_FROM_DEFAULT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("HOSTNAME_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("HWADDR", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("HWADDR_BLACKLIST", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_ALTSUBJECT_MATCHES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_ANON_IDENTITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_AUTH_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CA_CERT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CA_CERT_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CA_CERT_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CA_PATH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CLIENT_CERT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CLIENT_CERT_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_CLIENT_CERT_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_DOMAIN_MATCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_DOMAIN_SUFFIX_MATCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_EAP_METHODS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_FAST_PROVISIONING", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_IDENTITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_AUTH_METHODS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_CA_CERT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_CA_CERT_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_CA_CERT_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_CLIENT_CERT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_CLIENT_CERT_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_CLIENT_CERT_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_PRIVATE_KEY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_PRIVATE_KEY_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_INNER_PRIVATE_KEY_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_OPTIONAL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PAC_FILE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PASSWORD_RAW", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PASSWORD_RAW_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PEAP_FORCE_NEW_LABEL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PEAP_VERSION", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PHASE1_AUTH_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PHASE2_ALTSUBJECT_MATCHES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PHASE2_CA_PATH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PHASE2_DOMAIN_MATCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PHASE2_DOMAIN_SUFFIX_MATCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PHASE2_SUBJECT_MATCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PIN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PIN_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PRIVATE_KEY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PRIVATE_KEY_PASSWORD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_PRIVATE_KEY_PASSWORD_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_SUBJECT_MATCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IEEE_8021X_SYSTEM_CA_CERTS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPADDR", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("IPV4_AUTO_ROUTE_EXT_GW", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_DHCP_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_DNS_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_FAILURE_FATAL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_LINK_LOCAL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_REPLACE_LOCAL_RULE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_REQUIRED_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_ROUTE_METRIC", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV4_ROUTE_TABLE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6ADDR", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6ADDR_SECONDARIES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6FORWARDING", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6INIT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6TUNNELIPV4", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_ADDR_GEN_MODE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_AUTOCONF", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_AUTO_ROUTE_EXT_GW", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DEFAULTDEV", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DEFAULTGW", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DEFROUTE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DHCP_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DISABLED", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DNS_PRIORITY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_DOMAIN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_FAILURE_FATAL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_PEERDNS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_PEERROUTES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_PRIVACY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_PRIVACY_PREFER_PUBLIC_IP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_RA_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_REPLACE_LOCAL_RULE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_REQUIRED_TIMEOUT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_RES_OPTIONS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_ROUTE_METRIC", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_ROUTE_TABLE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("IPV6_TOKEN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("KEY", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("KEY_MGMT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("KEY_PASSPHRASE", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("KEY_TYPE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("LLDP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("LLMNR", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MACADDR", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MAC_ADDRESS_RANDOMIZATION", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MASTER", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MASTER_UUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MATCH_DRIVER", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MATCH_INTERFACE_NAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MATCH_KERNEL_COMMAND_LINE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MATCH_PATH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MDNS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("METRIC", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("MODE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MPTCP_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MTU", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MUD_URL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MULTI_CONNECT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("MVRP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("NAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("NETMASK", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("NETTYPE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("NM_CONTROLLED", NMS_IFCFG_KEY_TYPE_IS_PLAIN | NMS_IFCFG_KEY_TYPE_KEEP_WHEN_DIRTY),
    _KEY_TYPE("NM_USER_", NMS_IFCFG_KEY_TYPE_IS_PREFIX),
    _KEY_TYPE("ONBOOT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("OPTIONS", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("OVS_PORT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("OVS_PORT_UUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PAC_SCRIPT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PAC_URL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PEERDNS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PEERROUTES", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PHYSDEV", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PKEY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PKEY_ID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PKEY_ID_NM", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PMF", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PORTNAME", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("POWERSAVE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("PREFIX", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("PROXY_METHOD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("QDISC", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("REORDER_HDR", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("RES_OPTIONS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ROUTING_RULE6_", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("ROUTING_RULE_", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("SEARCH", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SECONDARY_UUIDS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SECURITYMODE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SLAVE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SRIOV_AUTOPROBE_DRIVERS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SRIOV_TOTAL_VFS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SRIOV_VF", NMS_IFCFG_KEY_TYPE_IS_NUMBERED),
    _KEY_TYPE("SSID_HIDDEN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("STABLE_ID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("STP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("SUBCHANNELS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("TC_COMMIT", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("TEAM_CONFIG", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("TEAM_MASTER", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("TEAM_MASTER_UUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("TEAM_PORT_CONFIG", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("TYPE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("USERS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("UUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VLAN", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VLAN_EGRESS_PRIORITY_MAP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VLAN_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VLAN_ID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VLAN_INGRESS_PRIORITY_MAP", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VLAN_PROTOCOL", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VRF", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("VRF_UUID", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WAIT_ACTIVATION_DELAY", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WEP_KEY_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WPA_ALLOW_WPA", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WPA_ALLOW_WPA2", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WPA_PSK", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WPA_PSK_FLAGS", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("WPS_METHOD", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
    _KEY_TYPE("ZONE", NMS_IFCFG_KEY_TYPE_IS_PLAIN),
};

const NMSIfcfgKeyTypeInfo *
nms_ifcfg_well_known_key_find_info(const char *key, gssize *out_idx)
{
    gssize idx;

    G_STATIC_ASSERT(G_STRUCT_OFFSET(NMSIfcfgKeyTypeInfo, key_name) == 0);

    idx = nm_array_find_bsearch(nms_ifcfg_well_known_keys,
                                G_N_ELEMENTS(nms_ifcfg_well_known_keys),
                                sizeof(nms_ifcfg_well_known_keys[0]),
                                &key,
                                nm_strcmp_p_with_data,
                                NULL);
    NM_SET_OUT(out_idx, idx);
    if (idx < 0)
        return NULL;
    return &nms_ifcfg_well_known_keys[idx];
}

const NMSIfcfgKeyTypeInfo *
nms_ifcfg_rh_utils_is_well_known_key(const char *key)
{
    const NMSIfcfgKeyTypeInfo *ti;
    gssize                     idx;

    nm_assert(key);

    ti = nms_ifcfg_well_known_key_find_info(key, &idx);

    if (ti) {
        if (NM_FLAGS_ANY(ti->key_flags,
                         NMS_IFCFG_KEY_TYPE_IS_PLAIN | NMS_IFCFG_KEY_TYPE_IS_NUMBERED)) {
            /* These tags are valid on full match.
             *
             * Note that numbered tags we also treat as valid if they have no
             * suffix. That is correct for "IPADDR", but less so for "ROUTING_RULE_". */
            return ti;
        }
        nm_assert(NM_FLAGS_HAS(ti->key_flags, NMS_IFCFG_KEY_TYPE_IS_PREFIX));
        /* a prefix tag needs some extra suffix afterwards to be valid. */
        return NULL;
    }

    /* Not found. Maybe it's a numbered/prefixed key? With idx we got the index where
     * we should insert the key. Since the numbered/prefixed keys share a prefix, we can
     * find the possible prefix at the index before the insert position. */
    idx = ~idx;
    if (idx == 0)
        return NULL;

    ti = &nms_ifcfg_well_known_keys[idx - 1];

    if (NM_FLAGS_HAS(ti->key_flags, NMS_IFCFG_KEY_TYPE_IS_NUMBERED)) {
        if (nms_ifcfg_rh_utils_is_numbered_tag(key, ti->key_name, NULL))
            return ti;
        return NULL;
    }

    if (NM_FLAGS_HAS(ti->key_flags, NMS_IFCFG_KEY_TYPE_IS_PREFIX)) {
        gsize l = strlen(ti->key_name);

        if (strncmp(key, ti->key_name, l) == 0 && key[l] != '\0')
            return ti;
        return NULL;
    }

    return NULL;
}
