72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include <netinet/ether.h>

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include <net/if.h>

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "sd-id128.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "link-config.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "ethtool-util.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "libudev-private.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "sd-rtnl.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "util.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "log.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "strv.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "path-util.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "conf-parser.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "conf-files.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "fileio.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "hashmap.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "rtnl-util.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "network-internal.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#include "siphash24.h"

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstruct link_config_ctx {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering LIST_HEAD(link_config, links);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int ethtool_fd;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering bool enable_name_policy;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering sd_rtnl *rtnl;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering usec_t link_dirs_ts_usec;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering};

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic const char* const link_dirs[] = {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering "/etc/systemd/network",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering "/run/systemd/network",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering "/usr/lib/systemd/network",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#ifdef HAVE_SPLIT_USR

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering "/lib/systemd/network",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#endif

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering NULL};

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart PoetteringDEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering#define _cleanup_link_config_ctx_free_ _cleanup_(link_config_ctx_freep)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringint link_config_ctx_new(link_config_ctx **ret) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering _cleanup_link_config_ctx_free_ link_config_ctx *ctx = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!ret)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return -EINVAL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ctx = new0(link_config_ctx, 1);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!ctx)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return -ENOMEM;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering LIST_HEAD_INIT(ctx->links);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ctx->ethtool_fd = -1;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ctx->enable_name_policy = true;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering *ret = ctx;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ctx = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic int link_config_ctx_connect(link_config_ctx *ctx) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (ctx->ethtool_fd == -1) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = ethtool_connect(&ctx->ethtool_fd);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("link_config: could not connect to ethtool: %s",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!ctx->rtnl) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = sd_rtnl_open(&ctx->rtnl, 0);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("link_config: could not connect to rtnl: %s",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic void link_configs_free(link_config_ctx *ctx) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link_config *link, *link_next;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!ctx)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering LIST_FOREACH_SAFE(links, link, link_next, ctx->links) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->filename);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->match_path);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->match_driver);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->match_type);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->description);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->alias);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link->name_policy);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(link);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringvoid link_config_ctx_free(link_config_ctx *ctx) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!ctx)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering safe_close(ctx->ethtool_fd);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering sd_rtnl_unref(ctx->rtnl);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link_configs_free(ctx);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering free(ctx);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic int load_link(link_config_ctx *ctx, const char *filename) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering _cleanup_free_ link_config *link = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering _cleanup_fclose_ FILE *file = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert(ctx);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert(filename);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (null_or_empty_path(filename)) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_debug("skipping empty file: %s", filename);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering file = fopen(filename, "re");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!file) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (errno == ENOENT)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering else

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return -errno;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link = new0(link_config, 1);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!link)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return log_oom();

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->mac_policy = _MACPOLICY_INVALID;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->wol = _WOL_INVALID;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->duplex = _DUP_INVALID;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = config_parse(NULL, filename, file, "Match\0Link\0Ethernet\0", config_item_perf_lookup,

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering (void*) link_config_gperf_lookup, false, false, link);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("Could not parse config file %s: %s", filename, strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering } else

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_debug("Parsed configuration file %s", filename);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->filename = strdup(filename);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering LIST_PREPEND(links, ctx->links, link);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic bool enable_name_policy(void) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering _cleanup_free_ char *line = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering char *w, *state;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering size_t l;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = proc_cmdline(&line);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r <= 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return true;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering FOREACH_WORD_QUOTED(w, l, line, state)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (strneq(w, "net.ifnames=0", l))

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return false;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return true;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringint link_config_load(link_config_ctx *ctx) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering _cleanup_strv_free_ char **files;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering char **f;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link_configs_free(ctx);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!enable_name_policy()) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ctx->enable_name_policy = false;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_info("Network interface NamePolicy= disabled on kernel commandline, ignoring.");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering /* update timestamp */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, true);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = conf_files_list_strv(&files, ".link", NULL, link_dirs);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_error("failed to enumerate link files: %s", strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering STRV_FOREACH_BACKWARDS(f, files) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = load_link(ctx, *f);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

c5285fbfcede2e0f54d2b5f14193041067cd2af6David Herrmann return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringbool link_config_should_reload(link_config_ctx *ctx) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, false);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringint link_config_get(link_config_ctx *ctx, struct udev_device *device, link_config **ret) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link_config *link;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering LIST_FOREACH(links, link, ctx->links) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (net_match_config(link->match_mac, link->match_path, link->match_driver,

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->match_type, NULL, link->match_host,

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->match_virt, link->match_kernel, link->match_arch,

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ether_aton(udev_device_get_sysattr_value(device, "address")),

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering udev_device_get_property_value(device, "ID_PATH"),

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering udev_device_get_driver(udev_device_get_parent(device)),

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering udev_device_get_property_value(device, "ID_NET_DRIVER"),

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering udev_device_get_devtype(device),

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering NULL)) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_debug("Config file %s applies to device %s",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering link->filename,

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering udev_device_get_sysname(device));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering *ret = link;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering *ret = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return -ENOENT;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic bool mac_is_random(struct udev_device *device) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering const char *s;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering unsigned type;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering s = udev_device_get_sysattr_value(device, "addr_assign_type");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!s)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return false; /* if we don't know, assume it is not random */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = safe_atou(s, &type);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return false;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering /* check for NET_ADDR_RANDOM */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return type == 1;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringstatic int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (want_random)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering random_bytes(mac->ether_addr_octet, ETH_ALEN);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering else {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering uint8_t result[8];

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = net_get_unique_predictable_data(device, result);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert_cc(ETH_ALEN <= sizeof(result));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering memcpy(mac->ether_addr_octet, result, ETH_ALEN);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering /* see eth_random_addr in the kernel */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringint link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_device *device, const char **name) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering const char *old_name;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering const char *new_name = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering struct ether_addr generated_mac;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering struct ether_addr *mac = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering int r, ifindex;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert(ctx);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert(config);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert(device);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering assert(name);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = link_config_ctx_connect(ctx);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering old_name = udev_device_get_sysname(device);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!old_name)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return -EINVAL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = ethtool_set_speed(ctx->ethtool_fd, old_name, config->speed / 1024, config->duplex);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("Could not set speed or duplex of %s to %u Mbps (%s): %s",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering old_name, config->speed / 1024, duplex_to_string(config->duplex),

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = ethtool_set_wol(ctx->ethtool_fd, old_name, config->wol);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("Could not set WakeOnLan of %s to %s: %s",

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering old_name, wol_to_string(config->wol), strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering ifindex = udev_device_get_ifindex(device);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (ifindex <= 0) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("Could not find ifindex");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return -ENODEV;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (ctx->enable_name_policy && config->name_policy) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering NamePolicy *policy;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering switch (*policy) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case NAMEPOLICY_DATABASE:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case NAMEPOLICY_ONBOARD:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case NAMEPOLICY_SLOT:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case NAMEPOLICY_PATH:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case NAMEPOLICY_MAC:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering new_name = udev_device_get_property_value(device, "ID_NET_NAME_MAC");

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering default:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (new_name)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering *name = new_name; /* a name was set by a policy */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering else if (config->name)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering *name = config->name; /* a name was set manually in the config */

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering else

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering *name = NULL;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering switch (config->mac_policy) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case MACPOLICY_PERSISTENT:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (mac_is_random(device)) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = get_mac(device, false, &generated_mac);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r == -ENOENT)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering else if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering mac = &generated_mac;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering case MACPOLICY_RANDOM:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (!mac_is_random(device)) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = get_mac(device, true, &generated_mac);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r == -ENOENT)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering else if (r < 0)

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering mac = &generated_mac;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering break;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering default:

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering mac = config->mac;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering r = rtnl_set_link_properties(ctx->rtnl, ifindex, config->alias, mac, config->mtu);

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering if (r < 0) {

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering log_warning("Could not set Alias, MACAddress or MTU on %s: %s", old_name, strerror(-r));

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return r;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering }

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering return 0;

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering}

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poettering

72648326ea6d3e68cdb0b5890df737047d031a41Lennart Poetteringint link_get_driver(link_config_ctx *ctx, struct udev_device *device, char **ret) {

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering const char *name;

5fa89b2cb366d533e56a9b7a9ce548480776f973Lennart Poettering char *driver;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering int r;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering r = link_config_ctx_connect(ctx);

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering if (r < 0)

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering return r;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering name = udev_device_get_sysname(device);

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering if (!name)

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering return -EINVAL;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering r = ethtool_get_driver(ctx->ethtool_fd, name, &driver);

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering if (r < 0)

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering return r;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering *ret = driver;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering return 0;

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering}

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poetteringstatic const char* const mac_policy_table[_MACPOLICY_MAX] = {

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering [MACPOLICY_PERSISTENT] = "persistent",

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering [MACPOLICY_RANDOM] = "random"

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering};

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

901992209e3c87a4cf06b530d7b26ae2d35680efLennart PoetteringDEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy);

901992209e3c87a4cf06b530d7b26ae2d35680efLennart PoetteringDEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, "Failed to parse MAC address policy");

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering

5fa89b2cb366d533e56a9b7a9ce548480776f973Lennart Poetteringstatic const char* const name_policy_table[_NAMEPOLICY_MAX] = {

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering [NAMEPOLICY_DATABASE] = "database",

901992209e3c87a4cf06b530d7b26ae2d35680efLennart Poettering [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");