1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering#include <netinet/ether.h>

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering#include <net/if.h>

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering#include "sd-id128.h"

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

9b420b3cfb8b93daf50e4cdbc92b05f2209ef893Lennart Poettering#include "link-config.h"

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering#include "ethtool-util.h"

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering#include "libudev-private.h"

96aad8d15a324d0e956a4e5653a11a67b209b41aLennart Poettering#include "sd-rtnl.h"

23c80348e656a4e6fd9ba8f17523a65b6fa349a0Kay Sievers#include "util.h"

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering#include "log.h"

003dffde2c1b93afbc9aff24b277276f65424406Lennart Poettering#include "strv.h"

4cee5eede280b7fd48c18a1942616c4ac896a554Lennart Poettering#include "path-util.h"

003dffde2c1b93afbc9aff24b277276f65424406Lennart Poettering#include "conf-parser.h"

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering#include "conf-files.h"

003dffde2c1b93afbc9aff24b277276f65424406Lennart Poettering#include "fileio.h"

6482f6269c87d2249e52e889a63adbdd50f2d691Ronny Chevalier#include "hashmap.h"

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering#include "rtnl-util.h"

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering#include "network-internal.h"

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering#include "siphash24.h"

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poetteringstruct link_config_ctx {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering LIST_HEAD(link_config, links);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering int ethtool_fd;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering bool enable_name_policy;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering sd_rtnl *rtnl;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering usec_t link_dirs_ts_usec;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering};

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poetteringstatic const char* const link_dirs[] = {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering "/etc/systemd/network",

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering "/run/systemd/network",

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering "/usr/lib/systemd/network",

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering#ifdef HAVE_SPLIT_USR

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering "/lib/systemd/network",

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering#endif

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering NULL};

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart PoetteringDEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering#define _cleanup_link_config_ctx_free_ _cleanup_(link_config_ctx_freep)

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poetteringint link_config_ctx_new(link_config_ctx **ret) {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering _cleanup_link_config_ctx_free_ link_config_ctx *ctx = NULL;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (!ret)

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return -EINVAL;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering ctx = new0(link_config_ctx, 1);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (!ctx)

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return -ENOMEM;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering LIST_HEAD_INIT(ctx->links);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering ctx->ethtool_fd = -1;

cb81cd8073392936882643af0129934bf67e96c4Lennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering ctx->enable_name_policy = true;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering *ret = ctx;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering ctx = NULL;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return 0;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering}

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poetteringstatic int link_config_ctx_connect(link_config_ctx *ctx) {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering int r;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (ctx->ethtool_fd == -1) {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering r = ethtool_connect(&ctx->ethtool_fd);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (r < 0)

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return r;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering }

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (!ctx->rtnl) {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering r = sd_rtnl_open(&ctx->rtnl, 0);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (r < 0)

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return r;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering }

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return 0;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering}

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poetteringstatic void link_configs_free(link_config_ctx *ctx) {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering link_config *link, *link_next;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering if (!ctx)

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering return;

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering LIST_FOREACH_SAFE(links, link, link_next, ctx->links) {

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link->filename);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link->match_path);

cb81cd8073392936882643af0129934bf67e96c4Lennart Poettering free(link->match_driver);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link->match_type);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link->description);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link->alias);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link->name_policy);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering free(link);

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering }

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering}

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poettering

160e3793adf2da2bd9ae3fe6b8881bb937e6e71bLennart Poetteringvoid link_config_ctx_free(link_config_ctx *ctx) {

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering if (!ctx)

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering safe_close(ctx->ethtool_fd);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering sd_rtnl_unref(ctx->rtnl);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering link_configs_free(ctx);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering free(ctx);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering}

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poetteringstatic int load_link(link_config_ctx *ctx, const char *filename) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering _cleanup_free_ link_config *link = NULL;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering _cleanup_fclose_ FILE *file = NULL;

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering int r;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering assert(ctx);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering assert(filename);

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (null_or_empty_path(filename)) {

df2d202e6ed4001a21c6512c244acad5d4706c87Lennart Poettering log_debug("skipping empty file: %s", filename);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return 0;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering file = fopen(filename, "re");

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering if (!file) {

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering if (errno == ENOENT)

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering return 0;

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering else

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering return -errno;

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering }

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering link = new0(link_config, 1);

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering if (!link)

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering return log_oom();

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering link->mac_policy = _MACPOLICY_INVALID;

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering link->wol = _WOL_INVALID;

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering link->duplex = _DUP_INVALID;

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering r = config_parse(NULL, filename, file, "Match\0Link\0Ethernet\0", config_item_perf_lookup,

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering (void*) link_config_gperf_lookup, false, false, link);

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering if (r < 0) {

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering log_warning("Could not parse config file %s: %s", filename, strerror(-r));

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering return r;

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering } else

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering log_debug("Parsed configuration file %s", filename);

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering link->filename = strdup(filename);

c2ce6a3d82b717c4c1e6245ad8c6ce1173f502d0Lennart Poettering

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering LIST_PREPEND(links, ctx->links, link);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering link = NULL;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return 0;

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poettering}

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poetteringstatic bool enable_name_policy(void) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering _cleanup_free_ char *line;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering char *w, *state;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering int r;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering size_t l;

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poettering

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poettering r = proc_cmdline(&line);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (r < 0)

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering if (r <= 0)

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return true;

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poettering

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering FOREACH_WORD_QUOTED(w, l, line, state)

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering if (strneq(w, "net.ifnames=0", l))

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering return false;

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering return true;

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering}

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poetteringint link_config_load(link_config_ctx *ctx) {

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering int r;

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poettering _cleanup_strv_free_ char **files;

4e724d9c5ab76c3f8327945317463ef706011082Lennart Poettering char **f;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering link_configs_free(ctx);

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (!enable_name_policy()) {

de0671ee7fe465e108f62dcbbbe9366f81dd9e9aZbigniew Jędrzejewski-Szmek ctx->enable_name_policy = false;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering log_info("Network interface NamePolicy= disabled on kernel commandline, ignoring.");

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering /* update timestamp */

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, true);

df2d202e6ed4001a21c6512c244acad5d4706c87Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering r = conf_files_list_strv(&files, ".link", NULL, link_dirs);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (r < 0) {

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering log_error("failed to enumerate link files: %s", strerror(-r));

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return r;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering STRV_FOREACH_BACKWARDS(f, files) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering r = load_link(ctx, *f);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (r < 0)

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return r;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return 0;

df2d202e6ed4001a21c6512c244acad5d4706c87Lennart Poettering}

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poetteringbool link_config_should_reload(link_config_ctx *ctx) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, false);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering}

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poetteringint link_config_get(link_config_ctx *ctx, struct udev_device *device, link_config **ret) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering link_config *link;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering LIST_FOREACH(links, link, ctx->links) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (net_match_config(link->match_mac, link->match_path, link->match_driver,

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering link->match_type, NULL, link->match_host,

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering link->match_virt, link->match_kernel, link->match_arch,

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering ether_aton(udev_device_get_sysattr_value(device, "address")),

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering udev_device_get_property_value(device, "ID_PATH"),

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering udev_device_get_driver(udev_device_get_parent(device)),

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering udev_device_get_property_value(device, "ID_NET_DRIVER"),

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering udev_device_get_devtype(device),

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering NULL)) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering log_debug("Config file %s applies to device %s",

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering link->filename,

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering udev_device_get_sysname(device));

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering *ret = link;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return 0;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering }

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering *ret = NULL;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return -ENOENT;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering}

8aec412ff697bc14995746953912ca6fdf2c9ba8Lennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poetteringstatic bool mac_is_random(struct udev_device *device) {

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering const char *s;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering unsigned type;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering int r;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering s = udev_device_get_sysattr_value(device, "addr_assign_type");

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering if (!s)

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return false; /* if we don't know, assume it is not random */

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering r = safe_atou(s, &type);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (r < 0)

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering return false;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering /* check for NET_ADDR_RANDOM */

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering return type == 1;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering}

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering

7f0d207d2c816e0a8cb2742b0a789911f7c99356Lennart Poetteringstatic int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering int r;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (want_random)

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering random_bytes(mac->ether_addr_octet, ETH_ALEN);

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering else {

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering uint8_t result[8];

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering r = net_get_unique_predictable_data(device, result);

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering if (r < 0)

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering return r;

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering assert_cc(ETH_ALEN <= sizeof(result));

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering memcpy(mac->ether_addr_octet, result, ETH_ALEN);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering /* see eth_random_addr in the kernel */

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering return 0;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering}

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poetteringint link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_device *device, const char **name) {

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering const char *old_name;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering const char *new_name = NULL;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering struct ether_addr generated_mac;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering struct ether_addr *mac = NULL;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering int r, ifindex;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering assert(ctx);

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering assert(config);

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering assert(device);

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering assert(name);

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering r = link_config_ctx_connect(ctx);

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering if (r < 0)

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering return r;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering old_name = udev_device_get_sysname(device);

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering if (!old_name)

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering return -EINVAL;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering r = ethtool_set_speed(ctx->ethtool_fd, old_name, config->speed / 1024, config->duplex);

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering if (r < 0)

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering log_warning("Could not set speed or duplex of %s to %u Mbps (%s): %s",

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering old_name, config->speed / 1024, duplex_to_string(config->duplex),

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering strerror(-r));

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering r = ethtool_set_wol(ctx->ethtool_fd, old_name, config->wol);

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering if (r < 0)

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering log_warning("Could not set WakeOnLan of %s to %s: %s",

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering old_name, wol_to_string(config->wol), strerror(-r));

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering

554604b3073467af75dc94fac9e2343148603289Lennart Poettering ifindex = udev_device_get_ifindex(device);

5b12334d35eadf1f45cc3d631fd1a2e72ffaea0aLennart Poettering if (ifindex <= 0) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering log_warning("Could not find ifindex");

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering return -ENODEV;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering }

554604b3073467af75dc94fac9e2343148603289Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering if (ctx->enable_name_policy && config->name_policy) {

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering NamePolicy *policy;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering switch (*policy) {

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering case NAMEPOLICY_DATABASE:

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE");

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering break;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering case NAMEPOLICY_ONBOARD:

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering break;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering case NAMEPOLICY_SLOT:

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering break;

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering case NAMEPOLICY_PATH:

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering break;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering case NAMEPOLICY_MAC:

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_MAC");

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering break;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering default:

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering break;

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering }

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering }

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering }

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering if (new_name)

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering *name = new_name; /* a name was set by a policy */

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering else if (config->name)

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering *name = config->name; /* a name was set manually in the config */

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering else

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering *name = NULL;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering switch (config->mac_policy) {

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering case MACPOLICY_PERSISTENT:

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering if (mac_is_random(device)) {

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering r = get_mac(device, false, &generated_mac);

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering if (r < 0)

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering return r;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering mac = &generated_mac;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering }

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering break;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering case MACPOLICY_RANDOM:

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering if (!mac_is_random(device)) {

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering r = get_mac(device, true, &generated_mac);

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering if (r < 0)

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering return r;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering mac = &generated_mac;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering }

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering break;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering default:

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering mac = config->mac;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering }

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering r = rtnl_set_link_properties(ctx->rtnl, ifindex, config->alias, mac, config->mtu);

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering if (r < 0) {

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering log_warning("Could not set Alias, MACAddress or MTU on %s: %s", old_name, strerror(-r));

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering return r;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering }

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering return 0;

ebcf1f97de4f6b1580ae55eb56b1a3939fe6b602Lennart Poettering}

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poetteringint link_get_driver(link_config_ctx *ctx, struct udev_device *device, char **ret) {

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering const char *name;

c335068380fe8c9d843cdb2cf8a00f822cfabed3Lennart Poettering char *driver;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering int r;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

a3e7f417d72ba3251fd6b3a228a2721a4b725a03Zbigniew Jędrzejewski-Szmek r = link_config_ctx_connect(ctx);

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering if (r < 0)

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering return r;

1ee306e1248866617c96ed9f4263f375588ad838Lennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering name = udev_device_get_sysname(device);

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering if (!name)

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering return -EINVAL;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering r = ethtool_get_driver(ctx->ethtool_fd, name, &driver);

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering if (r < 0)

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering return r;

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering *ret = driver;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering return 0;

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering}

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poetteringstatic const char* const mac_policy_table[_MACPOLICY_MAX] = {

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering [MACPOLICY_PERSISTENT] = "persistent",

9b5ed6feda08290edce3bf916fa7362733dd30eaLennart Poettering [MACPOLICY_RANDOM] = "random"

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering};

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart PoetteringDEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy);

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart PoetteringDEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy");

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poetteringstatic const char* const name_policy_table[_NAMEPOLICY_MAX] = {

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering [NAMEPOLICY_DATABASE] = "database",

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering [NAMEPOLICY_ONBOARD] = "onboard",

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering [NAMEPOLICY_SLOT] = "slot",

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering [NAMEPOLICY_PATH] = "path",

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering [NAMEPOLICY_MAC] = "mac"

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering};

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart PoetteringDEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy);

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart PoetteringDEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy, _NAMEPOLICY_INVALID, "Failed to parse interface name policy");

89f7c8465cd1ab37347dd0c15920bce31e8225dfLennart Poettering