f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <netinet/ether.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include <linux/netdevice.h>

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "missing.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "link-config.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "ethtool-util.h"

9eb977db5b89b44f254ab40c1876a76b7d7ea2d0Kay Sievers

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "libudev-private.h"

a5c32cff1f56afe6f0c6c70d91a88a7a8238b2d7Harald Hoyer#include "sd-rtnl.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "util.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "log.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "strv.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "path-util.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "conf-parser.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "conf-files.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "rtnl-util.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#include "network-internal.h"

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstruct link_config_ctx {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering LIST_HEAD(link_config, links);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering int ethtool_fd;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering bool enable_name_policy;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

2b6bf07dd23bb467099d213c97b3875c5e453491Zbigniew Jędrzejewski-Szmek sd_rtnl *rtnl;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering usec_t link_dirs_ts_usec;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering};

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic const char* const link_dirs[] = {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering "/etc/systemd/network",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering "/run/systemd/network",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering "/usr/lib/systemd/network",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#ifdef HAVE_SPLIT_USR

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering "/lib/systemd/network",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering#endif

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering NULL};

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic void link_config_free(link_config *link) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!link)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(link->filename);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->match_mac);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(link->match_path);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(link->match_driver);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(link->match_type);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->match_name);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->match_host);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->match_virt);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->match_kernel);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->match_arch);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->description);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->mac);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link->name_policy);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(link->name);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(link->alias);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering free(link);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

d2e54fae5ca7a0f71b5ac8b356a589ff0a09ea0aKay SieversDEFINE_TRIVIAL_CLEANUP_FUNC(link_config*, link_config_free);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic void link_configs_free(link_config_ctx *ctx) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link_config *link, *link_next;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!ctx)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering LIST_FOREACH_SAFE(links, link, link_next, ctx->links)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link_config_free(link);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringvoid link_config_ctx_free(link_config_ctx *ctx) {

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (!ctx)

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek return;

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering safe_close(ctx->ethtool_fd);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek sd_rtnl_unref(ctx->rtnl);

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link_configs_free(ctx);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering free(ctx);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart PoetteringDEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringint link_config_ctx_new(link_config_ctx **ret) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering _cleanup_(link_config_ctx_freep) link_config_ctx *ctx = NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (!ret)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return -EINVAL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering ctx = new0(link_config_ctx, 1);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!ctx)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return -ENOMEM;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering LIST_HEAD_INIT(ctx->links);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering ctx->ethtool_fd = -1;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering ctx->enable_name_policy = true;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *ret = ctx;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering ctx = NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic int load_link(link_config_ctx *ctx, const char *filename) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering _cleanup_(link_config_freep) link_config *link = NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering _cleanup_fclose_ FILE *file = NULL;

90b2de37b80603168f4e9c9c81cff7eea4efa21aZbigniew Jędrzejewski-Szmek int r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(ctx);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert(filename);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering file = fopen(filename, "re");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!file) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (errno == ENOENT)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering else

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return -errno;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering }

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (null_or_empty_fd(fileno(file))) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering log_debug("Skipping empty file: %s", filename);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return 0;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link = new0(link_config, 1);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!link)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return log_oom();

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering link->mac_policy = _MACPOLICY_INVALID;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link->wol = _WOL_INVALID;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link->duplex = _DUP_INVALID;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = config_parse(NULL, filename, file,

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering "Match\0Link\0Ethernet\0",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering config_item_perf_lookup, link_config_gperf_lookup,

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering false, false, true, link);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (r < 0)

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering else

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering log_debug("Parsed configuration file %s", filename);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link->filename = strdup(filename);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering LIST_PREPEND(links, ctx->links, link);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link = NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 0;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic bool enable_name_policy(void) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering _cleanup_free_ char *line = NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *word, *state;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering int r;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering size_t l;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = proc_cmdline(&line);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (r < 0) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return true;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering }

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering FOREACH_WORD_QUOTED(word, l, line, state)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (strneq(word, "net.ifnames=0", l))

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return false;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return true;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringint link_config_load(link_config_ctx *ctx) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering int r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering _cleanup_strv_free_ char **files;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering char **f;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering link_configs_free(ctx);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!enable_name_policy()) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering ctx->enable_name_policy = false;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering log_info("Network interface NamePolicy= disabled on kernel command line, ignoring.");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* update timestamp */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, true);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering r = conf_files_list_strv(&files, ".link", NULL, link_dirs);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (r < 0)

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return log_error_errno(r, "failed to enumerate link files: %m");

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn STRV_FOREACH_BACKWARDS(f, files) {

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn r = load_link(ctx, *f);

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn if (r < 0)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return r;

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn }

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn return 0;

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn}

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn

cc3773810855956bad92337cee8fa193584ab62eLennart Poetteringbool link_config_should_reload(link_config_ctx *ctx) {

a34faf579d2be139b0b9e8cd0c73ad4d918ef736Lukas Nykryn return paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, false);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringint link_config_get(link_config_ctx *ctx, struct udev_device *device,

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering link_config **ret) {

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering link_config *link;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering LIST_FOREACH(links, link, ctx->links) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char* attr_value;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering attr_value = udev_device_get_sysattr_value(device, "address");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (net_match_config(link->match_mac, link->match_path, link->match_driver,

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering link->match_type, link->match_name, link->match_host,

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering link->match_virt, link->match_kernel, link->match_arch,

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering attr_value ? ether_aton(attr_value) : NULL,

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering udev_device_get_property_value(device, "ID_PATH"),

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering udev_device_get_driver(udev_device_get_parent(device)),

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering udev_device_get_property_value(device, "ID_NET_DRIVER"),

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering udev_device_get_devtype(device),

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering udev_device_get_sysname(device))) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (link->match_name) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering unsigned char name_assign_type = NET_NAME_UNKNOWN;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering attr_value = udev_device_get_sysattr_value(device, "name_assign_type");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (attr_value)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering (void) safe_atou8(attr_value, &name_assign_type);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (name_assign_type == NET_NAME_ENUM) {

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering log_warning("Config file %s applies to device based on potentially unpredictable interface name '%s'",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link->filename, udev_device_get_sysname(device));

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering *ret = link;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return 0;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering } else if (name_assign_type == NET_NAME_RENAMED) {

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering log_warning("Config file %s matches device based on renamed interface name '%s', ignoring",

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering link->filename, udev_device_get_sysname(device));

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering continue;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering }

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering }

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering log_debug("Config file %s applies to device %s",

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering link->filename, udev_device_get_sysname(device));

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering *ret = link;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

d2e54fae5ca7a0f71b5ac8b356a589ff0a09ea0aKay Sievers *ret = NULL;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return -ENOENT;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poetteringstatic bool mac_is_random(struct udev_device *device) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *s;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering unsigned type;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering int r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* if we can't get the assign type, assume it is not random */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering s = udev_device_get_sysattr_value(device, "addr_assign_type");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!s)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return false;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = safe_atou(s, &type);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (r < 0)

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return false;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return type == NET_ADDR_RANDOM;

151b9b9662a90455262ce575a8a8ae74bf4ff336Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic bool should_rename(struct udev_device *device, bool respect_predictable) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *s;

718db96199eb307751264e4163555662c9a389faLennart Poettering unsigned type;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering int r;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* if we can't get the assgin type, assume we should rename */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering s = udev_device_get_sysattr_value(device, "name_assign_type");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!s)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return true;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = safe_atou(s, &type);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (r < 0)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return true;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering switch (type) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering case NET_NAME_USER:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering case NET_NAME_RENAMED:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* these were already named by userspace, do not touch again */

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering return false;

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering case NET_NAME_PREDICTABLE:

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering /* the kernel claims to have given a predictable name */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (respect_predictable)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return false;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* fall through */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering case NET_NAME_ENUM:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering default:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering /* the name is known to be bad, or of an unknown type */

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return true;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringstatic int get_mac(struct udev_device *device, bool want_random,

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering struct ether_addr *mac) {

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering int r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (want_random)

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering random_bytes(mac->ether_addr_octet, ETH_ALEN);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering else {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering uint8_t result[8];

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering r = net_get_unique_predictable_data(device, result);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (r < 0)

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering assert_cc(ETH_ALEN <= sizeof(result));

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering memcpy(mac->ether_addr_octet, result, ETH_ALEN);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering /* see eth_random_addr in the kernel */

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering return 0;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering}

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poetteringint link_config_apply(link_config_ctx *ctx, link_config *config,

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering struct udev_device *device, const char **name) {

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering const char *old_name;

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering const char *new_name = NULL;

2c4f86c1298f402220965682ab0e7729e150a562Lennart Poettering struct ether_addr generated_mac;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering struct ether_addr *mac = NULL;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering bool respect_predictable = false;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering int r, ifindex;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering assert(ctx);

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering assert(config);

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering assert(device);

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering assert(name);

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering old_name = udev_device_get_sysname(device);

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering if (!old_name)

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering return -EINVAL;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering r = ethtool_set_speed(&ctx->ethtool_fd, old_name, config->speed / 1024,

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering config->duplex);

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering if (r < 0)

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering log_warning_errno(r, "Could not set speed or duplex of %s to %u Mbps (%s): %m",

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering old_name, config->speed / 1024,

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering duplex_to_string(config->duplex));

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering r = ethtool_set_wol(&ctx->ethtool_fd, old_name, config->wol);

cc3773810855956bad92337cee8fa193584ab62eLennart Poettering if (r < 0)

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering log_warning_errno(r, "Could not set WakeOnLan of %s to %s: %m",

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering old_name, wol_to_string(config->wol));

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering ifindex = udev_device_get_ifindex(device);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (ifindex <= 0) {

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering log_warning("Could not find ifindex");

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering return -ENODEV;

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering }

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering

409133be63387fc04d927e8aecd2f6ba03d2f143Lennart Poettering if (ctx->enable_name_policy && config->name_policy) {

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering NamePolicy *policy;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering for (policy = config->name_policy;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering switch (*policy) {

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering case NAMEPOLICY_KERNEL:

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering respect_predictable = true;

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering break;

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering case NAMEPOLICY_DATABASE:

85a428c69465b047731b6abb5005f01824f1444eLennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE");

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering break;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering case NAMEPOLICY_ONBOARD:

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering break;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering case NAMEPOLICY_SLOT:

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering break;

c7b5eb98e8eeafe63a079ee3c51e9670872437aeLennart Poettering case NAMEPOLICY_PATH:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");

ec202eae8e84a4c99f054f771cb832046cb8769fShawn Landden break;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering case NAMEPOLICY_MAC:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_MAC");

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering default:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (should_rename(device, respect_predictable)) {

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering /* if not set by policy, fall back manually set name */

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (!new_name)

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering new_name = config->name;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering } else

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering new_name = NULL;

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering switch (config->mac_policy) {

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering case MACPOLICY_PERSISTENT:

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (mac_is_random(device)) {

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering r = get_mac(device, false, &generated_mac);

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering if (r == -ENOENT) {

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering log_warning_errno(r, "Could not generate persistent MAC address for %s: %m", old_name);

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering break;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering } else if (r < 0)

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering return r;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering mac = &generated_mac;

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering }

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering case MACPOLICY_RANDOM:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (!mac_is_random(device)) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering r = get_mac(device, true, &generated_mac);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering if (r == -ENOENT) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering log_warning_errno(r, "Could not generate random MAC address for %s: %m", old_name);

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering break;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering } else if (r < 0)

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen return r;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering mac = &generated_mac;

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen }

4943c1c94ba751c98763f4232b4350481b22c90aLennart Poettering break;

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen default:

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering mac = config->mac;

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen }

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen r = rtnl_set_link_properties(&ctx->rtnl, ifindex, config->alias, mac,

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering config->mtu);

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen if (r < 0)

8e7fd6ade44ce5dde0867ba748c7978ed1206865Lennart Poettering return log_warning_errno(r, "Could not set Alias, MACAddress or MTU on %s: %m", old_name);

641906e9366891e0ad3e6e38b7396a427678c4cfThomas Hindoe Paaboel Andersen

beaafb2ea6be591882aef21fe19b88e3b2461087Lennart Poettering *name = new_name;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering return 0;

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering}

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poetteringint link_get_driver(link_config_ctx *ctx, struct udev_device *device, char **ret) {

f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6Lennart Poettering const char *name;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering char *driver;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering int r;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering name = udev_device_get_sysname(device);

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering if (!name)

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering return -EINVAL;

eecd1362f7f4de432483b5d77c56726c3621a83aLennart Poettering

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

if (r < 0)

return r;

*ret = driver;

return 0;

}

static const char* const mac_policy_table[_MACPOLICY_MAX] = {

[MACPOLICY_PERSISTENT] = "persistent",

[MACPOLICY_RANDOM] = "random"

};

DEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy);

DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy,

"Failed to parse MAC address policy");

static const char* const name_policy_table[_NAMEPOLICY_MAX] = {

[NAMEPOLICY_KERNEL] = "kernel",

[NAMEPOLICY_DATABASE] = "database",

[NAMEPOLICY_ONBOARD] = "onboard",

[NAMEPOLICY_SLOT] = "slot",

[NAMEPOLICY_PATH] = "path",

[NAMEPOLICY_MAC] = "mac"

};

DEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy);

DEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy,

_NAMEPOLICY_INVALID,

"Failed to parse interface name policy");