af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen#include <netinet/ether.h>

2a73e0d39a9bec82c3800071e375d27164727e71Tom Gundersen#include <net/if.h>

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen#include "sd-id128.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen#include "link-config.h"

a501033335ed402c8f7e86fe41a15531ba69abd7Tom Gundersen#include "ethtool-util.h"

a501033335ed402c8f7e86fe41a15531ba69abd7Tom Gundersen

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen#include "libudev-private.h"

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen#include "sd-rtnl.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen#include "util.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen#include "log.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen#include "strv.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen#include "path-util.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen#include "conf-parser.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen#include "conf-files.h"

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen#include "fileio.h"

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen#include "hashmap.h"

3aeb37bc4f32b5edc334f2ac7c5d3c7b0a121328Tom Gundersen#include "rtnl-util.h"

c6f7c917a1b494d4455800823472227463f87438Tom Gundersen#include "network-internal.h"

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering#include "siphash24.h"

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenstruct link_config_ctx {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen LIST_HEAD(link_config, links);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

a501033335ed402c8f7e86fe41a15531ba69abd7Tom Gundersen int ethtool_fd;

a501033335ed402c8f7e86fe41a15531ba69abd7Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen bool enable_name_policy;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen sd_rtnl *rtnl;

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen

97f2d76d4f4dfab8b0629c09926a05a1e5621125Tom Gundersen usec_t link_dirs_ts_usec;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen};

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmekstatic const char* const link_dirs[] = {

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek "/etc/systemd/network",

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek "/run/systemd/network",

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek "/usr/lib/systemd/network",

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek#ifdef HAVE_SPLIT_USR

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek "/lib/systemd/network",

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek#endif

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek NULL};

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek

5b9d4dc05560ddda89e48b6b39365824b15e1300Tom GundersenDEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free);

5b9d4dc05560ddda89e48b6b39365824b15e1300Tom Gundersen#define _cleanup_link_config_ctx_free_ _cleanup_(link_config_ctx_freep)

5b9d4dc05560ddda89e48b6b39365824b15e1300Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenint link_config_ctx_new(link_config_ctx **ret) {

5b9d4dc05560ddda89e48b6b39365824b15e1300Tom Gundersen _cleanup_link_config_ctx_free_ link_config_ctx *ctx = NULL;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (!ret)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return -EINVAL;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen ctx = new0(link_config_ctx, 1);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (!ctx)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return -ENOMEM;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen LIST_HEAD_INIT(ctx->links);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

977085794d2996320e345433403de75f662b0622Tom Gundersen ctx->ethtool_fd = -1;

977085794d2996320e345433403de75f662b0622Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen ctx->enable_name_policy = true;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen *ret = ctx;

5b9d4dc05560ddda89e48b6b39365824b15e1300Tom Gundersen ctx = NULL;

5b9d4dc05560ddda89e48b6b39365824b15e1300Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return 0;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

977085794d2996320e345433403de75f662b0622Tom Gundersenstatic int link_config_ctx_connect(link_config_ctx *ctx) {

977085794d2996320e345433403de75f662b0622Tom Gundersen int r;

977085794d2996320e345433403de75f662b0622Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (ctx->ethtool_fd == -1) {

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen r = ethtool_connect(&ctx->ethtool_fd);

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (r < 0)

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen return r;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen }

977085794d2996320e345433403de75f662b0622Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (!ctx->rtnl) {

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen r = sd_rtnl_open(&ctx->rtnl, 0);

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (r < 0)

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen return r;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen }

977085794d2996320e345433403de75f662b0622Tom Gundersen

977085794d2996320e345433403de75f662b0622Tom Gundersen return 0;

977085794d2996320e345433403de75f662b0622Tom Gundersen}

977085794d2996320e345433403de75f662b0622Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenstatic void link_configs_free(link_config_ctx *ctx) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen link_config *link, *link_next;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (!ctx)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen LIST_FOREACH_SAFE(links, link, link_next, ctx->links) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(link->filename);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(link->match_path);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(link->match_driver);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(link->match_type);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(link->description);

d2df0d0ed3a88e491405b403e6022e6619750130Tom Gundersen free(link->alias);

edf029b7fd9a5853a87d3ca99aac2922bb8a277eTom Gundersen free(link->name_policy);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(link);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen }

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenvoid link_config_ctx_free(link_config_ctx *ctx) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (!ctx)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

03e334a1c7dc8c20c38902aa039440763acc9b17Lennart Poettering safe_close(ctx->ethtool_fd);

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen sd_rtnl_unref(ctx->rtnl);

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen link_configs_free(ctx);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen free(ctx);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenstatic int load_link(link_config_ctx *ctx, const char *filename) {

ecb08ec6a5c52f2d940f3b8147e2a480affd46e1Zbigniew Jędrzejewski-Szmek _cleanup_free_ link_config *link = NULL;

6e37cd2f4af8928d905203108a4331e375d7127cThomas Hindoe Paaboel Andersen _cleanup_fclose_ FILE *file = NULL;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen int r;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

187dc6e554f2d5b4b5a3bee72c73ff5df6418aa6Thomas Hindoe Paaboel Andersen assert(ctx);

187dc6e554f2d5b4b5a3bee72c73ff5df6418aa6Thomas Hindoe Paaboel Andersen assert(filename);

187dc6e554f2d5b4b5a3bee72c73ff5df6418aa6Thomas Hindoe Paaboel Andersen

6916ec29afd488d91e7e0fcbcc2e006b4e5f28dfTom Gundersen if (null_or_empty_path(filename)) {

6916ec29afd488d91e7e0fcbcc2e006b4e5f28dfTom Gundersen log_debug("skipping empty file: %s", filename);

6916ec29afd488d91e7e0fcbcc2e006b4e5f28dfTom Gundersen return 0;

6916ec29afd488d91e7e0fcbcc2e006b4e5f28dfTom Gundersen }

6916ec29afd488d91e7e0fcbcc2e006b4e5f28dfTom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen file = fopen(filename, "re");

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (!file) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (errno == ENOENT)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return 0;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen else

ecb08ec6a5c52f2d940f3b8147e2a480affd46e1Zbigniew Jędrzejewski-Szmek return -errno;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen }

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen link = new0(link_config, 1);

ecb08ec6a5c52f2d940f3b8147e2a480affd46e1Zbigniew Jędrzejewski-Szmek if (!link)

ecb08ec6a5c52f2d940f3b8147e2a480affd46e1Zbigniew Jędrzejewski-Szmek return log_oom();

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen link->mac_policy = _MACPOLICY_INVALID;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen link->wol = _WOL_INVALID;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen link->duplex = _DUP_INVALID;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen r = config_parse(NULL, filename, file, "Match\0Link\0Ethernet\0", config_item_perf_lookup,

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen (void*) link_config_gperf_lookup, false, false, link);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (r < 0) {

489124365d1d391864898b9869dd668eea5b2e28Dave Reisner log_warning("Could not parse config file %s: %s", filename, strerror(-r));

ecb08ec6a5c52f2d940f3b8147e2a480affd46e1Zbigniew Jędrzejewski-Szmek return r;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen } else

98a375f6d5cac24eb80d6d4e00699851324afdecTom Gundersen log_debug("Parsed configuration file %s", filename);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen link->filename = strdup(filename);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen LIST_PREPEND(links, ctx->links, link);

ecb08ec6a5c52f2d940f3b8147e2a480affd46e1Zbigniew Jędrzejewski-Szmek link = NULL;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return 0;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersenstatic bool enable_name_policy(void) {

f8a0bb5285024b6ce372c3157e761e6543ebdcd2Andreas Henriksson _cleanup_free_ char *line = NULL;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen char *w, *state;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen int r;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen size_t l;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering r = proc_cmdline(&line);

74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering if (r < 0)

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));

74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering if (r <= 0)

74df0fca09b3c31ed19e14ba80f996fdff772417Lennart Poettering return true;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen FOREACH_WORD_QUOTED(w, l, line, state)

ff83aac3647e21f31ac5e2b575ec1285dc585f6bTom Gundersen if (strneq(w, "net.ifnames=0", l))

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen return false;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen return true;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen}

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenint link_config_load(link_config_ctx *ctx) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen int r;

edf029b7fd9a5853a87d3ca99aac2922bb8a277eTom Gundersen _cleanup_strv_free_ char **files;

edf029b7fd9a5853a87d3ca99aac2922bb8a277eTom Gundersen char **f;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen link_configs_free(ctx);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen if (!enable_name_policy()) {

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen ctx->enable_name_policy = false;

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen log_info("Network interface NamePolicy= disabled on kernel commandline, ignoring.");

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen }

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen

97f2d76d4f4dfab8b0629c09926a05a1e5621125Tom Gundersen /* update timestamp */

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, true);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek r = conf_files_list_strv(&files, ".link", NULL, link_dirs);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (r < 0) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen log_error("failed to enumerate link files: %s", strerror(-r));

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return r;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen }

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen STRV_FOREACH_BACKWARDS(f, files) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen r = load_link(ctx, *f);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen if (r < 0)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return r;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen }

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return 0;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenbool link_config_should_reload(link_config_ctx *ctx) {

2ad8416dd057e7e3185169609ca3006e7649f576Zbigniew Jędrzejewski-Szmek return paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, false);

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersenint link_config_get(link_config_ctx *ctx, struct udev_device *device, link_config **ret) {

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen link_config *link;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen LIST_FOREACH(links, link, ctx->links) {

b3e013148603aa670bc2c060ac63d48e54d76fc2Tom Gundersen

edbb03e95a3c31bf719d5c6c46eec14d0bcb9c8fTom Gundersen if (net_match_config(link->match_mac, link->match_path, link->match_driver,

edbb03e95a3c31bf719d5c6c46eec14d0bcb9c8fTom Gundersen link->match_type, NULL, link->match_host,

edbb03e95a3c31bf719d5c6c46eec14d0bcb9c8fTom Gundersen link->match_virt, link->match_kernel, link->match_arch,

505f8da7325591defe5f751f328bd26915267602Tom Gundersen ether_aton(udev_device_get_sysattr_value(device, "address")),

b3e013148603aa670bc2c060ac63d48e54d76fc2Tom Gundersen udev_device_get_property_value(device, "ID_PATH"),

9b1c2626cef16722603bded9bb52033aba34dd74Tom Gundersen udev_device_get_driver(udev_device_get_parent(device)),

bf175aafd20c9ef974709ef12c5acf836121af33Tom Gundersen udev_device_get_property_value(device, "ID_NET_DRIVER"),

b3e013148603aa670bc2c060ac63d48e54d76fc2Tom Gundersen udev_device_get_devtype(device),

b3e013148603aa670bc2c060ac63d48e54d76fc2Tom Gundersen NULL)) {

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen log_debug("Config file %s applies to device %s",

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen link->filename,

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen udev_device_get_sysname(device));

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen *ret = link;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return 0;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen }

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen }

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen *ret = NULL;

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return -ENOENT;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersenstatic bool mac_is_random(struct udev_device *device) {

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen const char *s;

f1ac700248f231b7bdac2aafe8c35650efddb89fTom Gundersen unsigned type;

f1ac700248f231b7bdac2aafe8c35650efddb89fTom Gundersen int r;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen s = udev_device_get_sysattr_value(device, "addr_assign_type");

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen if (!s)

f1ac700248f231b7bdac2aafe8c35650efddb89fTom Gundersen return false; /* if we don't know, assume it is not random */

f1ac700248f231b7bdac2aafe8c35650efddb89fTom Gundersen r = safe_atou(s, &type);

f1ac700248f231b7bdac2aafe8c35650efddb89fTom Gundersen if (r < 0)

f1ac700248f231b7bdac2aafe8c35650efddb89fTom Gundersen return false;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen /* check for NET_ADDR_RANDOM */

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen return type == 1;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen}

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersenstatic int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering int r;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen if (want_random)

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering random_bytes(mac->ether_addr_octet, ETH_ALEN);

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen else {

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering uint8_t result[8];

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering

b5db00e52ee2e20578839e4e4488f7b9af9abc38Umut Tezduyar Lindskog r = net_get_unique_predictable_data(device, result);

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen if (r < 0)

55428d84f31b52da1c50b7469f14e15740547f20Tom Gundersen return r;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering assert_cc(ETH_ALEN <= sizeof(result));

9bf3b53533cdc9b95c921b71da755401f223f765Lennart Poettering memcpy(mac->ether_addr_octet, result, ETH_ALEN);

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen }

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen /* see eth_random_addr in the kernel */

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen return 0;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen}

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersenint link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_device *device, const char **name) {

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen const char *old_name;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen const char *new_name = NULL;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen struct ether_addr generated_mac;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen struct ether_addr *mac = NULL;

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen int r, ifindex;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen assert(ctx);

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen assert(config);

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen assert(device);

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen assert(name);

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen

977085794d2996320e345433403de75f662b0622Tom Gundersen r = link_config_ctx_connect(ctx);

977085794d2996320e345433403de75f662b0622Tom Gundersen if (r < 0)

977085794d2996320e345433403de75f662b0622Tom Gundersen return r;

977085794d2996320e345433403de75f662b0622Tom Gundersen

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen old_name = udev_device_get_sysname(device);

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen if (!old_name)

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return -EINVAL;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

733f7a2c69c794a81978a08a79916c224ba355a6Tom Gundersen r = ethtool_set_speed(ctx->ethtool_fd, old_name, config->speed / 1024, config->duplex);

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen if (r < 0)

733f7a2c69c794a81978a08a79916c224ba355a6Tom Gundersen log_warning("Could not set speed or duplex of %s to %u Mbps (%s): %s",

733f7a2c69c794a81978a08a79916c224ba355a6Tom Gundersen old_name, config->speed / 1024, duplex_to_string(config->duplex),

733f7a2c69c794a81978a08a79916c224ba355a6Tom Gundersen strerror(-r));

a501033335ed402c8f7e86fe41a15531ba69abd7Tom Gundersen

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen r = ethtool_set_wol(ctx->ethtool_fd, old_name, config->wol);

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen if (r < 0)

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen log_warning("Could not set WakeOnLan of %s to %s: %s",

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen old_name, wol_to_string(config->wol), strerror(-r));

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen ifindex = udev_device_get_ifindex(device);

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen if (ifindex <= 0) {

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen log_warning("Could not find ifindex");

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen return -ENODEV;

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen }

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen

f61942250a43a123580d7bbe5d7873dc5118ed97Tom Gundersen if (ctx->enable_name_policy && config->name_policy) {

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen NamePolicy *policy;

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen switch (*policy) {

e51660ae56bb747ece2cab8fe6eec37f4d06a438Tom Gundersen case NAMEPOLICY_DATABASE:

e51660ae56bb747ece2cab8fe6eec37f4d06a438Tom Gundersen new_name = udev_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE");

e51660ae56bb747ece2cab8fe6eec37f4d06a438Tom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen case NAMEPOLICY_ONBOARD:

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen new_name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen case NAMEPOLICY_SLOT:

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen new_name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen case NAMEPOLICY_PATH:

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen new_name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen case NAMEPOLICY_MAC:

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen new_name = udev_device_get_property_value(device, "ID_NET_NAME_MAC");

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen default:

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen }

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen }

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen }

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen if (new_name)

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen *name = new_name; /* a name was set by a policy */

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen else if (config->name)

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen *name = config->name; /* a name was set manually in the config */

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen else

3e137a1b9a0eac2bf43d493d3302c3c959b6ccdbTom Gundersen *name = NULL;

daeb71a36a98834664e4d95773a3629b746f4db8Tom Gundersen

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen switch (config->mac_policy) {

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen case MACPOLICY_PERSISTENT:

92d927f850d4b668b44f3e5f41e266d934d03726Tom Gundersen if (mac_is_random(device)) {

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen r = get_mac(device, false, &generated_mac);

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen if (r < 0)

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen return r;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen mac = &generated_mac;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen }

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen case MACPOLICY_RANDOM:

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen if (!mac_is_random(device)) {

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen r = get_mac(device, true, &generated_mac);

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen if (r < 0)

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen return r;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen mac = &generated_mac;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen }

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen break;

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen default:

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen mac = config->mac;

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen }

16b9b87aeee9353b5b8dae6089a69752422a5b09Tom Gundersen

d2df0d0ed3a88e491405b403e6022e6619750130Tom Gundersen r = rtnl_set_link_properties(ctx->rtnl, ifindex, config->alias, mac, config->mtu);

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen if (r < 0) {

d2df0d0ed3a88e491405b403e6022e6619750130Tom Gundersen log_warning("Could not set Alias, MACAddress or MTU on %s: %s", old_name, strerror(-r));

5fde13d748749f0e06e2e6cdd15f0980a79ea82cTom Gundersen return r;

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen }

43b3a5ef61859f06cdbaf26765cab8e1adac4296Tom Gundersen

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen return 0;

af6f0d422c521374ee6a2dd92df5935a5a476ae5Tom Gundersen}

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersenint link_get_driver(link_config_ctx *ctx, struct udev_device *device, char **ret) {

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen const char *name;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen char *driver;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen int r;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen r = link_config_ctx_connect(ctx);

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (r < 0)

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen return r;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen name = udev_device_get_sysname(device);

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (!name)

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen return -EINVAL;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen r = ethtool_get_driver(ctx->ethtool_fd, name, &driver);

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen if (r < 0)

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen return r;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen *ret = driver;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen return 0;

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen}

847a8a5fed4d265dfa659917515c6f9bd1b8d5c4Tom Gundersen

2c5859afecee81e345fc9526b1083bf79990ffb8Daniel Mackstatic const char* const mac_policy_table[_MACPOLICY_MAX] = {

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen [MACPOLICY_PERSISTENT] = "persistent",

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen [MACPOLICY_RANDOM] = "random"

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen};

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen

be32eb9b7fbcb22e4b648086d644135e38279633Tom GundersenDEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy);

be32eb9b7fbcb22e4b648086d644135e38279633Tom GundersenDEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy");

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen

2c5859afecee81e345fc9526b1083bf79990ffb8Daniel Mackstatic const char* const name_policy_table[_NAMEPOLICY_MAX] = {

e51660ae56bb747ece2cab8fe6eec37f4d06a438Tom Gundersen [NAMEPOLICY_DATABASE] = "database",

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen [NAMEPOLICY_ONBOARD] = "onboard",

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen [NAMEPOLICY_SLOT] = "slot",

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen [NAMEPOLICY_PATH] = "path",

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen [NAMEPOLICY_MAC] = "mac"

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen};

be32eb9b7fbcb22e4b648086d644135e38279633Tom Gundersen

be32eb9b7fbcb22e4b648086d644135e38279633Tom GundersenDEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy);

be32eb9b7fbcb22e4b648086d644135e38279633Tom GundersenDEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy, _NAMEPOLICY_INVALID, "Failed to parse interface name policy");