udev/net/link-config.c

	link-config.c revision 3aeb37bc4f32b5edc334f2ac7c5d3c7b0a121328
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt/***
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt This file is part of systemd.
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt Copyright (C) 2013 Tom Gundersen <teg@jklm.no>
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  systemd is free software; you can redistribute it and/or modify it
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  under the terms of the GNU Lesser General Public License as published by
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  the Free Software Foundation; either version 2.1 of the License, or
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  (at your option) any later version.
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  systemd is distributed in the hope that it will be useful, but
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  WITHOUT ANY WARRANTY; without even the implied warranty of
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  Lesser General Public License for more details.
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  You should have received a copy of the GNU Lesser General Public License
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt  along with systemd; If not, see <http://www.gnu.org/licenses/>.
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt***/
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include <netinet/ether.h>
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include <net/if.h>
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt#include "sd-id128.h"
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt#include "link-config.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "ethtool-util.h"
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "libudev-private.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "sd-rtnl.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "util.h"
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt#include "log.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "strv.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "path-util.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "conf-parser.h"
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt#include "conf-files.h"
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt#include "fileio.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "hashmap.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#include "rtnl-util.h"
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flyktstruct link_config_ctx {
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        LIST_HEAD(link_config, links);
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        int ethtool_fd;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt        sd_rtnl *rtnl;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        char **link_dirs;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        usec_t link_dirs_ts_usec;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt};
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik FlyktDEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free);
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt#define _cleanup_link_config_ctx_free_ _cleanup_(link_config_ctx_freep)
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flyktint link_config_ctx_new(link_config_ctx **ret) {
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        _cleanup_link_config_ctx_free_ link_config_ctx *ctx = NULL;
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        if (!ret)
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt                return -EINVAL;
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        ctx = new0(link_config_ctx, 1);
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        if (!ctx)
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt                return -ENOMEM;
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        LIST_HEAD_INIT(ctx->links);
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        ctx->ethtool_fd = -1;
76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams
76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams        ctx->link_dirs = strv_new("/etc/systemd/network",
76253e73f9c9c24fec755e485516f3b55d0707b4Dan Williams                                  "/run/systemd/network",
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt                                  "/usr/lib/systemd/network",
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt                                  NULL);
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt        if (!ctx->link_dirs) {
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt                log_error("failed to build link config directory array");
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt                return -ENOMEM;
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt        }
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt
da6fe470e17fa02f3adedc779585caf8669252bdPatrik Flykt        if (!path_strv_canonicalize_uniq(ctx->link_dirs)) {
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt                log_error("failed to canonicalize link config directories\n");
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt                return -ENOMEM;
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        }
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        *ret = ctx;
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        ctx = NULL;
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt
813e3a6ffcd094696001716480bbd68008cc54c8Patrik Flykt        return 0;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt}
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flyktstatic int link_config_ctx_connect(link_config_ctx *ctx) {
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        int r;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (ctx->ethtool_fd >= 0 && ctx->rtnl)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                return 0;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        r = ethtool_connect(&ctx->ethtool_fd);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (r < 0)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                return r;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        r = sd_rtnl_open(0, &ctx->rtnl);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (r < 0)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                return r;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        return 0;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt}
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flyktstatic void link_configs_free(link_config_ctx *ctx) {
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        link_config *link, *link_next;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (!ctx)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                return;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        LIST_FOREACH_SAFE(links, link, link_next, ctx->links) {
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                free(link->filename);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                free(link->match_path);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                free(link->match_driver);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                free(link->match_type);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                free(link->description);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                free(link);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        }
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt}
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flyktvoid link_config_ctx_free(link_config_ctx *ctx) {
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (!ctx)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                return;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (ctx->ethtool_fd >= 0)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                close_nointr_nofail(ctx->ethtool_fd);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        sd_rtnl_unref(ctx->rtnl);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        strv_free(ctx->link_dirs);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        link_configs_free(ctx);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        free(ctx);
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        return;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt}
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flyktstatic int load_link(link_config_ctx *ctx, const char *filename) {
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        link_config *link;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        FILE *file;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        int r;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        file = fopen(filename, "re");
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        if (!file) {
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                if (errno == ENOENT)
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                        return 0;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                else
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt                        return errno;
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt        }
f12ed3bf0b315fc88d5fbdf5bdca14b218c86e0cPatrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        link = new0(link_config, 1);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (!link) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                r = log_oom();
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                goto failure;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        link->mac_policy = _MACPOLICY_INVALID;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        link->wol = _WOL_INVALID;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        link->duplex = _DUP_INVALID;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        r = config_parse(NULL, filename, file, "Match\0Link\0Ethernet\0", config_item_perf_lookup,
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                         (void*) link_config_gperf_lookup, false, false, link);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (r < 0) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                log_warning("Colud not parse config file %s: %s", filename, strerror(-r));
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                goto failure;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        } else
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                log_info("Parsed configuration file %s", filename);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        link->filename = strdup(filename);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        LIST_PREPEND(links, ctx->links, link);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flyktfailure:
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        free(link);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return r;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt}
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flyktint link_config_load(link_config_ctx *ctx) {
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        int r;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        char **files, **f;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        link_configs_free(ctx);
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        /* update timestamp */
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        paths_check_timestamp(ctx->link_dirs, &ctx->link_dirs_ts_usec, true);
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        r = conf_files_list_strv(&files, ".link", NULL, (const char **)ctx->link_dirs);
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        if (r < 0) {
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt                log_error("failed to enumerate link files: %s", strerror(-r));
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt                return r;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        }
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        STRV_FOREACH_BACKWARDS(f, files) {
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt                r = load_link(ctx, *f);
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt                if (r < 0)
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt                        return r;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        }
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        return 0;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt}
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flyktbool link_config_should_reload(link_config_ctx *ctx) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return paths_check_timestamp(ctx->link_dirs, &ctx->link_dirs_ts_usec, false);
44481a8b537839cd9ffead4d261491641f5b5260Zbigniew Jędrzejewski-Szmek}
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
d182960ae974a0074010a058d0d909846a2f3f79Patrik Flyktstatic bool match_config(link_config *match, struct udev_device *device) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        const char *property;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (match->match_mac) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                property = udev_device_get_sysattr_value(device, "address");
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                if (!property || memcmp(match->match_mac, ether_aton(property), ETH_ALEN)) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        log_debug("Device MAC address (%s) did not match MACAddress=%s",
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                                  property, ether_ntoa(match->match_mac));
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        return 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (match->match_path) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                property = udev_device_get_property_value(device, "ID_PATH");
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                if (!streq_ptr(match->match_path, property)) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        log_debug("Device's persistent path (%s) did not match Path=%s",
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                                  property, match->match_path);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        return 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (match->match_driver) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                property = udev_device_get_driver(device);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                if (!streq_ptr(match->match_driver, property)) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        log_debug("Device driver (%s) did not match Driver=%s",
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                                  property, match->match_driver);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        return 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (match->match_type) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                property = udev_device_get_devtype(device);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                if (!streq_ptr(match->match_type, property)) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        log_debug("Device type (%s) did not match Type=%s",
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                                  property, match->match_type);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        return 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return 1;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt}
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flyktint link_config_get(link_config_ctx *ctx, struct udev_device *device, link_config **ret) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        link_config *link;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        LIST_FOREACH(links, link, ctx->links) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                if (!match_config(link, device)) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        log_info("Config file %s does not apply to device %s", link->filename, udev_device_get_sysname(device));
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                } else {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        log_info("Config file %s applies to device %s", link->filename, udev_device_get_sysname(device));
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        *ret = link;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        return 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return -ENOENT;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt}
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flyktstatic bool enable_name_policy(void) {
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        _cleanup_free_ char *line;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        char *w, *state;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        int r;
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        size_t l;
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        r = read_one_line_file("/proc/cmdline", &line);
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        if (r < 0) {
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                return true; /* something is very wrong, let's not make it worse */
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        }
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        FOREACH_WORD_QUOTED(w, l, line, state)
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                if (strneq(w, "net.ifnames=0", l))
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                        return false;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return true;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt}
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flyktstatic bool mac_is_random(struct udev_device *device) {
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        const char *s;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        unsigned type;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        int r;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        s = udev_device_get_sysattr_value(device, "addr_assign_type");
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        if (!s)
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                return false; /* if we don't know, assume it is not random */
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        r = safe_atou(s, &type);
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        if (r < 0)
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                return false;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        /* check for NET_ADDR_RANDOM */
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        return type == 1;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt}
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flyktstatic bool mac_is_permanent(struct udev_device *device) {
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        const char *s;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        unsigned type;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt        int r;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        s = udev_device_get_sysattr_value(device, "addr_assign_type");
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (!s)
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                return true; /* if we don't know, assume it is permanent */
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        r = safe_atou(s, &type);
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        if (r < 0)
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt                return true;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        /* check for NET_ADDR_PERM */
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt        return type == 0;
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt}
859cca44f834ab1cc3e41fa6b94744f1856ab027Patrik Flykt
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flyktstatic int get_mac(struct udev_device *device, bool want_random, struct ether_addr *mac) {
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt        unsigned int seed;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt        int r, i;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt        if (want_random)
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                seed = random_u();
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt        else {
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                const char *name;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                sd_id128_t machine;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                char machineid_buf[33];
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                const char *seed_str;
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                /* fetch some persistent data unique (on this machine) to this device */
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                if (!name) {
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                        name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                        if (!name) {
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                                name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                                if (!name)
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                                        return -ENOENT;
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                        }
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                }
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                /* fetch some persistent data unique to this machine */
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                r = sd_id128_get_machine(&machine);
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                if (r < 0)
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                        return r;
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                /* combine the data */
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                seed_str = strappenda(name, sd_id128_to_string(machine, machineid_buf));
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt
c4e8ceddccfbb14e475e74eb5c57ba32c3c6cf86Patrik Flykt                /* hash to get seed */
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt                seed = string_hash_func(seed_str);
2ea8857effb833615b16d10fc7a19a7104c19e13Patrik Flykt        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        srandom(seed);
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        for(i = 0; i < ETH_ALEN; i++) {
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt                mac->ether_addr_octet[i] = random();
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        }
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        /* see eth_random_addr in the kernel */
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        mac->ether_addr_octet[0] &= 0xfe;        /* clear multicast bit */
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        mac->ether_addr_octet[0] |= 0x02;        /* set local assignment bit (IEEE802) */
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt        return 0;
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt}
947527f8326d3591f252c48fee5426a563f03544Patrik Flykt
947527f8326d3591f252c48fee5426a563f03544Patrik Flyktint link_config_apply(link_config_ctx *ctx, link_config *config, struct udev_device *device) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        const char *name;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        const char *new_name = NULL;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        struct ether_addr generated_mac;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        struct ether_addr *mac = NULL;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        int r, ifindex;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        r = link_config_ctx_connect(ctx);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (r < 0)
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                return r;
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        name = udev_device_get_sysname(device);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (!name)
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                return -EINVAL;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        log_info("Configuring %s", name);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (config->description) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                r = udev_device_set_sysattr_value(device, "ifalias",
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                                  config->description);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                if (r < 0)
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                        log_warning("Could not set description of %s to '%s': %s",
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                    name, config->description, strerror(-r));
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        r = ethtool_set_speed(ctx->ethtool_fd, name, config->speed, config->duplex);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (r < 0)
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                log_warning("Could not set speed or duplex of %s to %u Mbytes (%s): %s",
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                             name, config->speed, duplex_to_string(config->duplex), strerror(-r));
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        r = ethtool_set_wol(ctx->ethtool_fd, name, config->wol);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (r < 0)
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                log_warning("Could not set WakeOnLan of %s to %s: %s",
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                            name, wol_to_string(config->wol), strerror(-r));
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        ifindex = udev_device_get_ifindex(device);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (ifindex <= 0) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                log_warning("Could not find ifindex");
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                return -ENODEV;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (config->name_policy && enable_name_policy()) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                NamePolicy *policy;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                for (policy = config->name_policy; !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                        switch (*policy) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                case NAMEPOLICY_ONBOARD:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        new_name = udev_device_get_property_value(device, "ID_NET_NAME_ONBOARD");
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        break;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                case NAMEPOLICY_SLOT:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        new_name = udev_device_get_property_value(device, "ID_NET_NAME_SLOT");
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        break;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                case NAMEPOLICY_PATH:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        new_name = udev_device_get_property_value(device, "ID_NET_NAME_PATH");
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        break;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                case NAMEPOLICY_MAC:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        new_name = udev_device_get_property_value(device, "ID_NET_NAME_MAC");
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        break;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                default:
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                                        break;
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                        }
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                }
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        }
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        if (!new_name && config->name) {
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                new_name = config->name;
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        switch (config->mac_policy) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                case MACPOLICY_PERSISTENT:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                        if (!mac_is_permanent(device)) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                r = get_mac(device, false, &generated_mac);
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                                if (r < 0)
d63be95a306bf1e262c7e1c7ad4b2c12b49d371ePatrik Flykt                                        return r;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                mac = &generated_mac;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                        }
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                        break;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                case MACPOLICY_RANDOM:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                        if (!mac_is_random(device)) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                r = get_mac(device, true, &generated_mac);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                if (r < 0)
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                                        return r;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                                mac = &generated_mac;
e7504d95479455be5cef120fc8e0a48fd74ad5caPatrik Flykt                        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                        break;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                default:
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                        mac = config->mac;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        r = rtnl_set_link_properties(ctx->rtnl, ifindex, new_name, mac, config->mtu);
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        if (r < 0) {
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                log_warning("Could not set Name, MACAddress or MTU on %s: %s", name, strerror(-r));
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt                return r;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        }
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt        return 0;
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt}
5e256ea7d3d556b3a1fb5c1faa94ec6a8833e53ePatrik Flykt