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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
af6f0d42 | 2 | |
01234e1f | 3 | #include <linux/netdevice.h> |
43b3a5ef TG |
4 | #include <netinet/ether.h> |
5 | ||
e5eadf53 | 6 | #include "sd-device.h" |
07630cea | 7 | #include "sd-netlink.h" |
af6f0d42 | 8 | |
b5efdb8a | 9 | #include "alloc-util.h" |
07630cea LP |
10 | #include "conf-files.h" |
11 | #include "conf-parser.h" | |
dc0d4078 | 12 | #include "def.h" |
b220632c | 13 | #include "device-util.h" |
a5010333 | 14 | #include "ethtool-util.h" |
3ffd4af2 | 15 | #include "fd-util.h" |
07630cea | 16 | #include "link-config.h" |
af6f0d42 | 17 | #include "log.h" |
0a970718 | 18 | #include "memory-util.h" |
b355d0c9 | 19 | #include "netif-naming-scheme.h" |
1c4baffc | 20 | #include "netlink-util.h" |
c6f7c917 | 21 | #include "network-internal.h" |
6bedfcbb | 22 | #include "parse-util.h" |
07630cea | 23 | #include "path-util.h" |
4e731273 | 24 | #include "proc-cmdline.h" |
3df3e884 | 25 | #include "random-util.h" |
8fcde012 | 26 | #include "stat-util.h" |
8b43440b | 27 | #include "string-table.h" |
07630cea LP |
28 | #include "string-util.h" |
29 | #include "strv.h" | |
af6f0d42 TG |
30 | |
31 | struct link_config_ctx { | |
32 | LIST_HEAD(link_config, links); | |
33 | ||
a5010333 TG |
34 | int ethtool_fd; |
35 | ||
f6194225 TG |
36 | bool enable_name_policy; |
37 | ||
1c4baffc | 38 | sd_netlink *rtnl; |
43b3a5ef | 39 | |
dc0d4078 | 40 | usec_t network_dirs_ts_usec; |
af6f0d42 TG |
41 | }; |
42 | ||
9a4b012e TG |
43 | static void link_config_free(link_config *link) { |
44 | if (!link) | |
45 | return; | |
5b9d4dc0 | 46 | |
9a4b012e TG |
47 | free(link->filename); |
48 | ||
e90d0374 | 49 | set_free_free(link->match_mac); |
4bb7cc82 | 50 | set_free_free(link->match_permanent_mac); |
43d60b77 TG |
51 | strv_free(link->match_path); |
52 | strv_free(link->match_driver); | |
53 | strv_free(link->match_type); | |
391f6bc1 | 54 | strv_free(link->match_name); |
44005bfb | 55 | strv_free(link->match_property); |
c4f58dea | 56 | condition_free_list(link->conditions); |
9a4b012e TG |
57 | |
58 | free(link->description); | |
59 | free(link->mac); | |
60 | free(link->name_policy); | |
61 | free(link->name); | |
a5053a15 | 62 | strv_free(link->alternative_names); |
ef1d2c07 | 63 | free(link->alternative_names_policy); |
9a4b012e TG |
64 | free(link->alias); |
65 | ||
66 | free(link); | |
af6f0d42 TG |
67 | } |
68 | ||
9a4b012e TG |
69 | DEFINE_TRIVIAL_CLEANUP_FUNC(link_config*, link_config_free); |
70 | ||
af6f0d42 TG |
71 | static void link_configs_free(link_config_ctx *ctx) { |
72 | link_config *link, *link_next; | |
73 | ||
74 | if (!ctx) | |
75 | return; | |
76 | ||
9a4b012e TG |
77 | LIST_FOREACH_SAFE(links, link, link_next, ctx->links) |
78 | link_config_free(link); | |
af6f0d42 TG |
79 | } |
80 | ||
81 | void link_config_ctx_free(link_config_ctx *ctx) { | |
82 | if (!ctx) | |
83 | return; | |
84 | ||
03e334a1 | 85 | safe_close(ctx->ethtool_fd); |
43b3a5ef | 86 | |
1c4baffc | 87 | sd_netlink_unref(ctx->rtnl); |
43b3a5ef | 88 | |
af6f0d42 TG |
89 | link_configs_free(ctx); |
90 | ||
91 | free(ctx); | |
92 | ||
93 | return; | |
94 | } | |
95 | ||
9a4b012e TG |
96 | int link_config_ctx_new(link_config_ctx **ret) { |
97 | _cleanup_(link_config_ctx_freep) link_config_ctx *ctx = NULL; | |
98 | ||
99 | if (!ret) | |
100 | return -EINVAL; | |
101 | ||
102 | ctx = new0(link_config_ctx, 1); | |
103 | if (!ctx) | |
104 | return -ENOMEM; | |
105 | ||
106 | LIST_HEAD_INIT(ctx->links); | |
107 | ||
108 | ctx->ethtool_fd = -1; | |
109 | ||
110 | ctx->enable_name_policy = true; | |
111 | ||
1cc6c93a | 112 | *ret = TAKE_PTR(ctx); |
9a4b012e TG |
113 | |
114 | return 0; | |
115 | } | |
116 | ||
a378400b | 117 | int link_load_one(link_config_ctx *ctx, const char *filename) { |
9a4b012e | 118 | _cleanup_(link_config_freep) link_config *link = NULL; |
6e37cd2f | 119 | _cleanup_fclose_ FILE *file = NULL; |
6cdab9f1 | 120 | _cleanup_free_ char *name = NULL; |
79a60834 | 121 | size_t i; |
af6f0d42 TG |
122 | int r; |
123 | ||
187dc6e5 TA |
124 | assert(ctx); |
125 | assert(filename); | |
126 | ||
af6f0d42 | 127 | file = fopen(filename, "re"); |
f2d251cd YW |
128 | if (!file) |
129 | return errno == ENOENT ? 0 : -errno; | |
af6f0d42 | 130 | |
ed88bcfb ZJS |
131 | if (null_or_empty_fd(fileno(file))) { |
132 | log_debug("Skipping empty file: %s", filename); | |
133 | return 0; | |
134 | } | |
135 | ||
6cdab9f1 YW |
136 | name = strdup(filename); |
137 | if (!name) | |
138 | return -ENOMEM; | |
139 | ||
140 | link = new(link_config, 1); | |
ecb08ec6 | 141 | if (!link) |
e8a42907 | 142 | return -ENOMEM; |
af6f0d42 | 143 | |
6cdab9f1 YW |
144 | *link = (link_config) { |
145 | .filename = TAKE_PTR(name), | |
54ed9f88 | 146 | .mac_address_policy = _MAC_ADDRESS_POLICY_INVALID, |
6cdab9f1 YW |
147 | .wol = _WOL_INVALID, |
148 | .duplex = _DUP_INVALID, | |
149 | .port = _NET_DEV_PORT_INVALID, | |
150 | .autonegotiation = -1, | |
151 | }; | |
5fde13d7 | 152 | |
79a60834 | 153 | for (i = 0; i < ELEMENTSOF(link->features); i++) |
cc2ff878 | 154 | link->features[i] = -1; |
50725d10 | 155 | |
e9f3d2d5 | 156 | r = config_parse(NULL, filename, file, |
c6b3370a | 157 | "Match\0Link\0", |
e9f3d2d5 | 158 | config_item_perf_lookup, link_config_gperf_lookup, |
bcde742e | 159 | CONFIG_PARSE_WARN, link); |
36f822c4 | 160 | if (r < 0) |
ecb08ec6 | 161 | return r; |
af6f0d42 | 162 | |
4e964aa0 | 163 | if (link->speed > UINT_MAX) |
dab495dc TG |
164 | return -ERANGE; |
165 | ||
4bb7cc82 YW |
166 | if (set_isempty(link->match_mac) && set_isempty(link->match_permanent_mac) && |
167 | strv_isempty(link->match_path) && strv_isempty(link->match_driver) && strv_isempty(link->match_type) && | |
44005bfb | 168 | strv_isempty(link->match_name) && strv_isempty(link->match_property) && !link->conditions) |
84ea567e YW |
169 | log_warning("%s: No valid settings found in the [Match] section. " |
170 | "The file will match all interfaces. " | |
171 | "If that is intended, please add OriginalName=* in the [Match] section.", | |
172 | filename); | |
173 | ||
c4f58dea | 174 | if (!condition_test_list(link->conditions, NULL, NULL, NULL)) { |
176d9c0e YW |
175 | log_debug("%s: Conditions do not match the system environment, skipping.", filename); |
176 | return 0; | |
177 | } | |
178 | ||
6cdab9f1 | 179 | log_debug("Parsed configuration file %s", filename); |
af6f0d42 | 180 | |
4b4a6c9b | 181 | LIST_PREPEND(links, ctx->links, TAKE_PTR(link)); |
af6f0d42 | 182 | return 0; |
af6f0d42 TG |
183 | } |
184 | ||
f6194225 | 185 | static bool enable_name_policy(void) { |
1d84ad94 | 186 | bool b; |
f6194225 | 187 | |
1d84ad94 | 188 | return proc_cmdline_get_bool("net.ifnames", &b) <= 0 || b; |
f6194225 TG |
189 | } |
190 | ||
015b097c | 191 | static int link_unsigned_attribute(sd_device *device, const char *attr, unsigned *type) { |
0b189e8f ZJS |
192 | const char *s; |
193 | int r; | |
194 | ||
015b097c | 195 | r = sd_device_get_sysattr_value(device, attr, &s); |
0b189e8f | 196 | if (r < 0) |
015b097c | 197 | return log_device_debug_errno(device, r, "Failed to query %s: %m", attr); |
0b189e8f ZJS |
198 | |
199 | r = safe_atou(s, type); | |
200 | if (r < 0) | |
015b097c | 201 | return log_device_warning_errno(device, r, "Failed to parse %s \"%s\": %m", attr, s); |
0b189e8f | 202 | |
015b097c | 203 | log_device_debug(device, "Device has %s=%u", attr, *type); |
0b189e8f ZJS |
204 | return 0; |
205 | } | |
206 | ||
af6f0d42 | 207 | int link_config_load(link_config_ctx *ctx) { |
edf029b7 TG |
208 | _cleanup_strv_free_ char **files; |
209 | char **f; | |
a39f92d3 | 210 | int r; |
af6f0d42 TG |
211 | |
212 | link_configs_free(ctx); | |
213 | ||
f6194225 TG |
214 | if (!enable_name_policy()) { |
215 | ctx->enable_name_policy = false; | |
3f85ef0f | 216 | log_info("Network interface NamePolicy= disabled on kernel command line, ignoring."); |
f6194225 TG |
217 | } |
218 | ||
97f2d76d | 219 | /* update timestamp */ |
dc0d4078 | 220 | paths_check_timestamp(NETWORK_DIRS, &ctx->network_dirs_ts_usec, true); |
af6f0d42 | 221 | |
dc0d4078 | 222 | r = conf_files_list_strv(&files, ".link", NULL, 0, NETWORK_DIRS); |
f647962d MS |
223 | if (r < 0) |
224 | return log_error_errno(r, "failed to enumerate link files: %m"); | |
af6f0d42 TG |
225 | |
226 | STRV_FOREACH_BACKWARDS(f, files) { | |
a378400b | 227 | r = link_load_one(ctx, *f); |
af6f0d42 | 228 | if (r < 0) |
e8a42907 | 229 | log_error_errno(r, "Failed to load %s, ignoring: %m", *f); |
af6f0d42 TG |
230 | } |
231 | ||
232 | return 0; | |
233 | } | |
234 | ||
235 | bool link_config_should_reload(link_config_ctx *ctx) { | |
dc0d4078 | 236 | return paths_check_timestamp(NETWORK_DIRS, &ctx->network_dirs_ts_usec, false); |
af6f0d42 TG |
237 | } |
238 | ||
e5eadf53 | 239 | int link_config_get(link_config_ctx *ctx, sd_device *device, link_config **ret) { |
4bb7cc82 | 240 | struct ether_addr permanent_mac = {}; |
af6f0d42 | 241 | link_config *link; |
4bb7cc82 YW |
242 | const char *name; |
243 | int r; | |
af6f0d42 | 244 | |
3b64e4d4 TG |
245 | assert(ctx); |
246 | assert(device); | |
247 | assert(ret); | |
248 | ||
4bb7cc82 YW |
249 | r = sd_device_get_sysname(device, &name); |
250 | if (r < 0) | |
251 | return r; | |
252 | ||
253 | r = ethtool_get_permanent_macaddr(&ctx->ethtool_fd, name, &permanent_mac); | |
254 | if (r < 0) | |
255 | log_device_debug_errno(device, r, "Failed to get permanent MAC address, ignoring: %m"); | |
256 | ||
af6f0d42 | 257 | LIST_FOREACH(links, link, ctx->links) { |
4bb7cc82 | 258 | if (net_match_config(link->match_mac, link->match_permanent_mac, link->match_path, link->match_driver, |
78404d22 | 259 | link->match_type, link->match_name, link->match_property, NULL, NULL, NULL, |
4bb7cc82 | 260 | device, NULL, &permanent_mac, NULL, NULL, 0, NULL, NULL)) { |
56637e5c | 261 | if (link->match_name && !strv_contains(link->match_name, "*")) { |
015b097c | 262 | unsigned name_assign_type = NET_NAME_UNKNOWN; |
32bc8adc | 263 | |
015b097c | 264 | (void) link_unsigned_attribute(device, "name_assign_type", &name_assign_type); |
32bc8adc | 265 | |
56637e5c | 266 | if (name_assign_type == NET_NAME_ENUM) { |
b38de0e9 YW |
267 | log_device_warning(device, "Config file %s applies to device based on potentially unpredictable interface name", |
268 | link->filename); | |
32bc8adc TG |
269 | *ret = link; |
270 | ||
271 | return 0; | |
272 | } else if (name_assign_type == NET_NAME_RENAMED) { | |
b38de0e9 YW |
273 | log_device_warning(device, "Config file %s matches device based on renamed interface name, ignoring", |
274 | link->filename); | |
32bc8adc | 275 | |
ca6038b8 | 276 | continue; |
32bc8adc | 277 | } |
ca6038b8 | 278 | } |
32bc8adc | 279 | |
b38de0e9 | 280 | log_device_debug(device, "Config file %s is applied", link->filename); |
32bc8adc | 281 | |
ca6038b8 | 282 | *ret = link; |
ca6038b8 | 283 | return 0; |
af6f0d42 TG |
284 | } |
285 | } | |
286 | ||
be32eb9b | 287 | *ret = NULL; |
af6f0d42 TG |
288 | return -ENOENT; |
289 | } | |
290 | ||
54ed9f88 | 291 | static int get_mac(sd_device *device, MACAddressPolicy policy, struct ether_addr *mac) { |
015b097c | 292 | unsigned addr_type; |
54ed9f88 | 293 | bool want_random = policy == MAC_ADDRESS_POLICY_RANDOM; |
f1ac7002 | 294 | int r; |
16b9b87a | 295 | |
54ed9f88 | 296 | assert(IN_SET(policy, MAC_ADDRESS_POLICY_RANDOM, MAC_ADDRESS_POLICY_PERSISTENT)); |
3c9b8860 | 297 | |
015b097c | 298 | r = link_unsigned_attribute(device, "addr_assign_type", &addr_type); |
f1ac7002 | 299 | if (r < 0) |
015b097c ZJS |
300 | return r; |
301 | switch (addr_type) { | |
302 | case NET_ADDR_SET: | |
303 | return log_device_debug(device, "MAC on the device already set by userspace"); | |
304 | case NET_ADDR_STOLEN: | |
305 | return log_device_debug(device, "MAC on the device already set based on another device"); | |
306 | case NET_ADDR_RANDOM: | |
307 | case NET_ADDR_PERM: | |
308 | break; | |
309 | default: | |
310 | return log_device_warning(device, "Unknown addr_assign_type %u, ignoring", addr_type); | |
311 | } | |
04b67d49 | 312 | |
015b097c ZJS |
313 | if (want_random == (addr_type == NET_ADDR_RANDOM)) |
314 | return log_device_debug(device, "MAC on the device already matches policy *%s*", | |
54ed9f88 | 315 | mac_address_policy_to_string(policy)); |
16b9b87a | 316 | |
015b097c ZJS |
317 | if (want_random) { |
318 | log_device_debug(device, "Using random bytes to generate MAC"); | |
9bf3b535 | 319 | random_bytes(mac->ether_addr_octet, ETH_ALEN); |
015b097c | 320 | } else { |
dbe81cbd | 321 | uint64_t result; |
9bf3b535 | 322 | |
96848152 ZJS |
323 | r = net_get_unique_predictable_data(device, |
324 | naming_scheme_has(NAMING_STABLE_VIRTUAL_MACS), | |
325 | &result); | |
16b9b87a | 326 | if (r < 0) |
015b097c | 327 | return log_device_warning_errno(device, r, "Could not generate persistent MAC: %m"); |
16b9b87a | 328 | |
96848152 | 329 | log_device_debug(device, "Using generated persistent MAC address"); |
9bf3b535 | 330 | assert_cc(ETH_ALEN <= sizeof(result)); |
dbe81cbd | 331 | memcpy(mac->ether_addr_octet, &result, ETH_ALEN); |
16b9b87a TG |
332 | } |
333 | ||
334 | /* see eth_random_addr in the kernel */ | |
3c9b8860 TG |
335 | mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */ |
336 | mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */ | |
015b097c | 337 | return 1; |
16b9b87a TG |
338 | } |
339 | ||
464cf22f | 340 | int link_config_apply(link_config_ctx *ctx, link_config *config, |
e5eadf53 | 341 | sd_device *device, const char **name) { |
ef1d2c07 | 342 | _cleanup_strv_free_ char **altnames = NULL; |
5fde13d7 | 343 | struct ether_addr generated_mac; |
16b9b87a | 344 | struct ether_addr *mac = NULL; |
a39f92d3 SS |
345 | const char *new_name = NULL; |
346 | const char *old_name; | |
0b189e8f ZJS |
347 | unsigned speed, name_type = NET_NAME_UNKNOWN; |
348 | NamePolicy policy; | |
43b3a5ef | 349 | int r, ifindex; |
af6f0d42 | 350 | |
3e137a1b TG |
351 | assert(ctx); |
352 | assert(config); | |
353 | assert(device); | |
354 | assert(name); | |
355 | ||
e5eadf53 YW |
356 | r = sd_device_get_sysname(device, &old_name); |
357 | if (r < 0) | |
358 | return r; | |
af6f0d42 | 359 | |
5c2316c6 YW |
360 | r = ethtool_set_glinksettings(&ctx->ethtool_fd, old_name, |
361 | config->autonegotiation, config->advertise, | |
362 | config->speed, config->duplex, config->port); | |
a39f92d3 SS |
363 | if (r < 0) { |
364 | ||
bb79318e | 365 | if (config->port != _NET_DEV_PORT_INVALID) |
49c603bd | 366 | log_warning_errno(r, "Could not set port (%s) of %s: %m", port_to_string(config->port), old_name); |
bb79318e | 367 | |
5dd10118 | 368 | if (!eqzero(config->advertise)) |
2d18ac44 | 369 | log_warning_errno(r, "Could not set advertise mode: %m"); /* TODO: include modes in the log message. */ |
a39f92d3 | 370 | |
6cf0a204 | 371 | if (config->speed) { |
6cf0a204 SS |
372 | speed = DIV_ROUND_UP(config->speed, 1000000); |
373 | if (r == -EOPNOTSUPP) { | |
374 | r = ethtool_set_speed(&ctx->ethtool_fd, old_name, speed, config->duplex); | |
375 | if (r < 0) | |
376 | log_warning_errno(r, "Could not set speed of %s to %u Mbps: %m", old_name, speed); | |
377 | } | |
378 | } | |
379 | ||
6eee8857 YW |
380 | if (config->duplex != _DUP_INVALID) |
381 | log_warning_errno(r, "Could not set duplex of %s to %s: %m", old_name, duplex_to_string(config->duplex)); | |
a39f92d3 | 382 | } |
a5010333 | 383 | |
aedca892 | 384 | r = ethtool_set_wol(&ctx->ethtool_fd, old_name, config->wol); |
5fde13d7 | 385 | if (r < 0) |
755bde37 LP |
386 | log_warning_errno(r, "Could not set WakeOnLan of %s to %s: %m", |
387 | old_name, wol_to_string(config->wol)); | |
af6f0d42 | 388 | |
50725d10 SS |
389 | r = ethtool_set_features(&ctx->ethtool_fd, old_name, config->features); |
390 | if (r < 0) | |
391 | log_warning_errno(r, "Could not set offload features of %s: %m", old_name); | |
392 | ||
5f945202 SS |
393 | if (config->channels.rx_count_set || config->channels.tx_count_set || config->channels.other_count_set || config->channels.combined_count_set) { |
394 | r = ethtool_set_channels(&ctx->ethtool_fd, old_name, &config->channels); | |
395 | if (r < 0) | |
396 | log_warning_errno(r, "Could not set channels of %s: %m", old_name); | |
397 | } | |
398 | ||
224ded67 SS |
399 | if (config->ring.rx_pending_set || config->ring.tx_pending_set) { |
400 | r = ethtool_set_nic_buffer_size(&ctx->ethtool_fd, old_name, &config->ring); | |
401 | if (r < 0) | |
402 | log_warning_errno(r, "Could not set ring buffer of %s: %m", old_name); | |
403 | } | |
404 | ||
e5eadf53 YW |
405 | r = sd_device_get_ifindex(device, &ifindex); |
406 | if (r < 0) | |
b220632c | 407 | return log_device_warning_errno(device, r, "Could not find ifindex: %m"); |
43b3a5ef | 408 | |
015b097c | 409 | (void) link_unsigned_attribute(device, "name_assign_type", &name_type); |
0b189e8f | 410 | |
73d2bb08 ZJS |
411 | if (IN_SET(name_type, NET_NAME_USER, NET_NAME_RENAMED) |
412 | && !naming_scheme_has(NAMING_ALLOW_RERENAMES)) { | |
413 | log_device_debug(device, "Device already has a name given by userspace, not renaming."); | |
414 | goto no_rename; | |
415 | } | |
416 | ||
0b189e8f | 417 | if (ctx->enable_name_policy && config->name_policy) |
78f8849f | 418 | for (NamePolicy *p = config->name_policy; *p != _NAMEPOLICY_INVALID; p++) { |
0b189e8f ZJS |
419 | policy = *p; |
420 | ||
421 | switch (policy) { | |
422 | case NAMEPOLICY_KERNEL: | |
423 | if (name_type != NET_NAME_PREDICTABLE) | |
424 | continue; | |
425 | ||
426 | /* The kernel claims to have given a predictable name, keep it. */ | |
427 | log_device_debug(device, "Policy *%s*: keeping predictable kernel name", | |
428 | name_policy_to_string(policy)); | |
429 | goto no_rename; | |
3907446f ZJS |
430 | case NAMEPOLICY_KEEP: |
431 | if (!IN_SET(name_type, NET_NAME_USER, NET_NAME_RENAMED)) | |
432 | continue; | |
433 | ||
434 | log_device_debug(device, "Policy *%s*: keeping existing userspace name", | |
435 | name_policy_to_string(policy)); | |
436 | goto no_rename; | |
0b189e8f ZJS |
437 | case NAMEPOLICY_DATABASE: |
438 | (void) sd_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE", &new_name); | |
439 | break; | |
440 | case NAMEPOLICY_ONBOARD: | |
441 | (void) sd_device_get_property_value(device, "ID_NET_NAME_ONBOARD", &new_name); | |
442 | break; | |
443 | case NAMEPOLICY_SLOT: | |
444 | (void) sd_device_get_property_value(device, "ID_NET_NAME_SLOT", &new_name); | |
445 | break; | |
446 | case NAMEPOLICY_PATH: | |
447 | (void) sd_device_get_property_value(device, "ID_NET_NAME_PATH", &new_name); | |
448 | break; | |
449 | case NAMEPOLICY_MAC: | |
450 | (void) sd_device_get_property_value(device, "ID_NET_NAME_MAC", &new_name); | |
451 | break; | |
452 | default: | |
453 | assert_not_reached("invalid policy"); | |
5fde13d7 | 454 | } |
78f8849f YW |
455 | if (ifname_valid(new_name)) |
456 | break; | |
daeb71a3 | 457 | } |
daeb71a3 | 458 | |
0b189e8f ZJS |
459 | if (new_name) |
460 | log_device_debug(device, "Policy *%s* yields \"%s\".", name_policy_to_string(policy), new_name); | |
461 | else if (config->name) { | |
462 | new_name = config->name; | |
463 | log_device_debug(device, "Policies didn't yield a name, using specified Name=%s.", new_name); | |
ed308023 | 464 | } else |
0b189e8f ZJS |
465 | log_device_debug(device, "Policies didn't yield a name and Name= is not given, not renaming."); |
466 | no_rename: | |
04b67d49 | 467 | |
54ed9f88 ZJS |
468 | if (IN_SET(config->mac_address_policy, MAC_ADDRESS_POLICY_PERSISTENT, MAC_ADDRESS_POLICY_RANDOM)) { |
469 | if (get_mac(device, config->mac_address_policy, &generated_mac) > 0) | |
015b097c ZJS |
470 | mac = &generated_mac; |
471 | } else | |
472 | mac = config->mac; | |
16b9b87a | 473 | |
dab495dc | 474 | r = rtnl_set_link_properties(&ctx->rtnl, ifindex, config->alias, mac, config->mtu); |
f647962d | 475 | if (r < 0) |
7b72fe21 | 476 | return log_warning_errno(r, "Could not set Alias=, MACAddress= or MTU= on %s: %m", old_name); |
43b3a5ef | 477 | |
ef1d2c07 YW |
478 | if (config->alternative_names) { |
479 | altnames = strv_copy(config->alternative_names); | |
480 | if (!altnames) | |
481 | return log_oom(); | |
482 | } | |
483 | ||
484 | if (config->alternative_names_policy) | |
485 | for (NamePolicy *p = config->alternative_names_policy; *p != _NAMEPOLICY_INVALID; p++) { | |
486 | const char *n; | |
487 | ||
488 | switch (*p) { | |
489 | case NAMEPOLICY_DATABASE: | |
490 | (void) sd_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE", &n); | |
491 | break; | |
492 | case NAMEPOLICY_ONBOARD: | |
493 | (void) sd_device_get_property_value(device, "ID_NET_NAME_ONBOARD", &n); | |
494 | break; | |
495 | case NAMEPOLICY_SLOT: | |
496 | (void) sd_device_get_property_value(device, "ID_NET_NAME_SLOT", &n); | |
497 | break; | |
498 | case NAMEPOLICY_PATH: | |
499 | (void) sd_device_get_property_value(device, "ID_NET_NAME_PATH", &n); | |
500 | break; | |
501 | case NAMEPOLICY_MAC: | |
502 | (void) sd_device_get_property_value(device, "ID_NET_NAME_MAC", &n); | |
503 | break; | |
504 | default: | |
505 | assert_not_reached("invalid policy"); | |
506 | } | |
507 | if (!isempty(n)) { | |
508 | r = strv_extend(&altnames, n); | |
509 | if (r < 0) | |
510 | return log_oom(); | |
511 | } | |
512 | } | |
513 | ||
514 | if (new_name) | |
515 | strv_remove(altnames, new_name); | |
516 | strv_remove(altnames, old_name); | |
517 | strv_uniq(altnames); | |
4d016e96 | 518 | strv_sort(altnames); |
ef1d2c07 YW |
519 | |
520 | r = rtnl_set_link_alternative_names(&ctx->rtnl, ifindex, altnames); | |
bb181dd4 | 521 | if (r == -EOPNOTSUPP) |
ef1d2c07 | 522 | log_debug_errno(r, "Could not set AlternativeName= or apply AlternativeNamesPolicy= on %s, ignoring: %m", old_name); |
bb181dd4 | 523 | else if (r < 0) |
ef1d2c07 | 524 | return log_warning_errno(r, "Could not set AlternativeName= or apply AlternativeNamesPolicy= on %s: %m", old_name); |
a5053a15 | 525 | |
d95b83b8 TG |
526 | *name = new_name; |
527 | ||
af6f0d42 TG |
528 | return 0; |
529 | } | |
be32eb9b | 530 | |
e5eadf53 | 531 | int link_get_driver(link_config_ctx *ctx, sd_device *device, char **ret) { |
847a8a5f | 532 | const char *name; |
a7f7d1bd | 533 | char *driver = NULL; |
847a8a5f TG |
534 | int r; |
535 | ||
e5eadf53 YW |
536 | r = sd_device_get_sysname(device, &name); |
537 | if (r < 0) | |
538 | return r; | |
847a8a5f | 539 | |
aedca892 | 540 | r = ethtool_get_driver(&ctx->ethtool_fd, name, &driver); |
847a8a5f TG |
541 | if (r < 0) |
542 | return r; | |
543 | ||
544 | *ret = driver; | |
545 | return 0; | |
546 | } | |
547 | ||
54ed9f88 ZJS |
548 | static const char* const mac_address_policy_table[_MAC_ADDRESS_POLICY_MAX] = { |
549 | [MAC_ADDRESS_POLICY_PERSISTENT] = "persistent", | |
550 | [MAC_ADDRESS_POLICY_RANDOM] = "random", | |
551 | [MAC_ADDRESS_POLICY_NONE] = "none", | |
be32eb9b TG |
552 | }; |
553 | ||
54ed9f88 ZJS |
554 | DEFINE_STRING_TABLE_LOOKUP(mac_address_policy, MACAddressPolicy); |
555 | DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_address_policy, mac_address_policy, MACAddressPolicy, | |
464cf22f | 556 | "Failed to parse MAC address policy"); |
be32eb9b | 557 | |
2c5859af | 558 | static const char* const name_policy_table[_NAMEPOLICY_MAX] = { |
04b67d49 | 559 | [NAMEPOLICY_KERNEL] = "kernel", |
3907446f | 560 | [NAMEPOLICY_KEEP] = "keep", |
e51660ae | 561 | [NAMEPOLICY_DATABASE] = "database", |
be32eb9b TG |
562 | [NAMEPOLICY_ONBOARD] = "onboard", |
563 | [NAMEPOLICY_SLOT] = "slot", | |
564 | [NAMEPOLICY_PATH] = "path", | |
3907446f | 565 | [NAMEPOLICY_MAC] = "mac", |
be32eb9b TG |
566 | }; |
567 | ||
568 | DEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy); | |
464cf22f TG |
569 | DEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy, |
570 | _NAMEPOLICY_INVALID, | |
571 | "Failed to parse interface name policy"); | |
ef1d2c07 YW |
572 | |
573 | static const char* const alternative_names_policy_table[_NAMEPOLICY_MAX] = { | |
574 | [NAMEPOLICY_DATABASE] = "database", | |
575 | [NAMEPOLICY_ONBOARD] = "onboard", | |
576 | [NAMEPOLICY_SLOT] = "slot", | |
577 | [NAMEPOLICY_PATH] = "path", | |
578 | [NAMEPOLICY_MAC] = "mac", | |
579 | }; | |
580 | ||
581 | DEFINE_STRING_TABLE_LOOKUP(alternative_names_policy, NamePolicy); | |
582 | DEFINE_CONFIG_PARSE_ENUMV(config_parse_alternative_names_policy, alternative_names_policy, NamePolicy, | |
583 | _NAMEPOLICY_INVALID, | |
584 | "Failed to parse alternative names policy"); |