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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
af6f0d42 | 2 | |
43b3a5ef TG |
3 | #include <netinet/ether.h> |
4 | ||
e5eadf53 | 5 | #include "sd-device.h" |
07630cea | 6 | #include "sd-netlink.h" |
af6f0d42 | 7 | |
b5efdb8a | 8 | #include "alloc-util.h" |
07630cea LP |
9 | #include "conf-files.h" |
10 | #include "conf-parser.h" | |
b220632c | 11 | #include "device-util.h" |
a5010333 | 12 | #include "ethtool-util.h" |
3ffd4af2 | 13 | #include "fd-util.h" |
07630cea | 14 | #include "link-config.h" |
af6f0d42 | 15 | #include "log.h" |
36dd5ffd | 16 | #include "missing_network.h" |
1c4baffc | 17 | #include "netlink-util.h" |
c6f7c917 | 18 | #include "network-internal.h" |
6bedfcbb | 19 | #include "parse-util.h" |
07630cea | 20 | #include "path-util.h" |
4e731273 | 21 | #include "proc-cmdline.h" |
3df3e884 | 22 | #include "random-util.h" |
8fcde012 | 23 | #include "stat-util.h" |
8b43440b | 24 | #include "string-table.h" |
07630cea LP |
25 | #include "string-util.h" |
26 | #include "strv.h" | |
27 | #include "util.h" | |
af6f0d42 TG |
28 | |
29 | struct link_config_ctx { | |
30 | LIST_HEAD(link_config, links); | |
31 | ||
a5010333 TG |
32 | int ethtool_fd; |
33 | ||
f6194225 TG |
34 | bool enable_name_policy; |
35 | ||
1c4baffc | 36 | sd_netlink *rtnl; |
43b3a5ef | 37 | |
97f2d76d | 38 | usec_t link_dirs_ts_usec; |
af6f0d42 TG |
39 | }; |
40 | ||
2ad8416d ZJS |
41 | static const char* const link_dirs[] = { |
42 | "/etc/systemd/network", | |
43 | "/run/systemd/network", | |
44 | "/usr/lib/systemd/network", | |
349cc4a5 | 45 | #if HAVE_SPLIT_USR |
2ad8416d ZJS |
46 | "/lib/systemd/network", |
47 | #endif | |
48 | NULL}; | |
49 | ||
9a4b012e TG |
50 | static void link_config_free(link_config *link) { |
51 | if (!link) | |
52 | return; | |
5b9d4dc0 | 53 | |
9a4b012e TG |
54 | free(link->filename); |
55 | ||
e90d0374 | 56 | set_free_free(link->match_mac); |
43d60b77 TG |
57 | strv_free(link->match_path); |
58 | strv_free(link->match_driver); | |
59 | strv_free(link->match_type); | |
9a4b012e TG |
60 | free(link->match_name); |
61 | free(link->match_host); | |
62 | free(link->match_virt); | |
5022f08a LP |
63 | free(link->match_kernel_cmdline); |
64 | free(link->match_kernel_version); | |
9a4b012e TG |
65 | free(link->match_arch); |
66 | ||
67 | free(link->description); | |
68 | free(link->mac); | |
69 | free(link->name_policy); | |
70 | free(link->name); | |
71 | free(link->alias); | |
72 | ||
73 | free(link); | |
af6f0d42 TG |
74 | } |
75 | ||
9a4b012e TG |
76 | DEFINE_TRIVIAL_CLEANUP_FUNC(link_config*, link_config_free); |
77 | ||
af6f0d42 TG |
78 | static void link_configs_free(link_config_ctx *ctx) { |
79 | link_config *link, *link_next; | |
80 | ||
81 | if (!ctx) | |
82 | return; | |
83 | ||
9a4b012e TG |
84 | LIST_FOREACH_SAFE(links, link, link_next, ctx->links) |
85 | link_config_free(link); | |
af6f0d42 TG |
86 | } |
87 | ||
88 | void link_config_ctx_free(link_config_ctx *ctx) { | |
89 | if (!ctx) | |
90 | return; | |
91 | ||
03e334a1 | 92 | safe_close(ctx->ethtool_fd); |
43b3a5ef | 93 | |
1c4baffc | 94 | sd_netlink_unref(ctx->rtnl); |
43b3a5ef | 95 | |
af6f0d42 TG |
96 | link_configs_free(ctx); |
97 | ||
98 | free(ctx); | |
99 | ||
100 | return; | |
101 | } | |
102 | ||
9a4b012e TG |
103 | DEFINE_TRIVIAL_CLEANUP_FUNC(link_config_ctx*, link_config_ctx_free); |
104 | ||
105 | int link_config_ctx_new(link_config_ctx **ret) { | |
106 | _cleanup_(link_config_ctx_freep) link_config_ctx *ctx = NULL; | |
107 | ||
108 | if (!ret) | |
109 | return -EINVAL; | |
110 | ||
111 | ctx = new0(link_config_ctx, 1); | |
112 | if (!ctx) | |
113 | return -ENOMEM; | |
114 | ||
115 | LIST_HEAD_INIT(ctx->links); | |
116 | ||
117 | ctx->ethtool_fd = -1; | |
118 | ||
119 | ctx->enable_name_policy = true; | |
120 | ||
1cc6c93a | 121 | *ret = TAKE_PTR(ctx); |
9a4b012e TG |
122 | |
123 | return 0; | |
124 | } | |
125 | ||
af6f0d42 | 126 | static int load_link(link_config_ctx *ctx, const char *filename) { |
9a4b012e | 127 | _cleanup_(link_config_freep) link_config *link = NULL; |
6e37cd2f | 128 | _cleanup_fclose_ FILE *file = NULL; |
cc2ff878 | 129 | int i; |
af6f0d42 TG |
130 | int r; |
131 | ||
187dc6e5 TA |
132 | assert(ctx); |
133 | assert(filename); | |
134 | ||
af6f0d42 TG |
135 | file = fopen(filename, "re"); |
136 | if (!file) { | |
137 | if (errno == ENOENT) | |
138 | return 0; | |
139 | else | |
ecb08ec6 | 140 | return -errno; |
af6f0d42 TG |
141 | } |
142 | ||
ed88bcfb ZJS |
143 | if (null_or_empty_fd(fileno(file))) { |
144 | log_debug("Skipping empty file: %s", filename); | |
145 | return 0; | |
146 | } | |
147 | ||
af6f0d42 | 148 | link = new0(link_config, 1); |
ecb08ec6 ZJS |
149 | if (!link) |
150 | return log_oom(); | |
af6f0d42 | 151 | |
5fde13d7 TG |
152 | link->mac_policy = _MACPOLICY_INVALID; |
153 | link->wol = _WOL_INVALID; | |
154 | link->duplex = _DUP_INVALID; | |
593022fa | 155 | link->port = _NET_DEV_PORT_INVALID; |
a39f92d3 | 156 | link->autonegotiation = -1; |
5fde13d7 | 157 | |
cc2ff878 TH |
158 | for (i = 0; i < (int)ELEMENTSOF(link->features); i++) |
159 | link->features[i] = -1; | |
50725d10 | 160 | |
e9f3d2d5 ZJS |
161 | r = config_parse(NULL, filename, file, |
162 | "Match\0Link\0Ethernet\0", | |
163 | config_item_perf_lookup, link_config_gperf_lookup, | |
bcde742e | 164 | CONFIG_PARSE_WARN, link); |
36f822c4 | 165 | if (r < 0) |
ecb08ec6 | 166 | return r; |
36f822c4 | 167 | else |
98a375f6 | 168 | log_debug("Parsed configuration file %s", filename); |
af6f0d42 | 169 | |
4e964aa0 | 170 | if (link->speed > UINT_MAX) |
dab495dc TG |
171 | return -ERANGE; |
172 | ||
af6f0d42 | 173 | link->filename = strdup(filename); |
c805d41c LP |
174 | if (!link->filename) |
175 | return log_oom(); | |
af6f0d42 TG |
176 | |
177 | LIST_PREPEND(links, ctx->links, link); | |
ecb08ec6 | 178 | link = NULL; |
af6f0d42 TG |
179 | |
180 | return 0; | |
af6f0d42 TG |
181 | } |
182 | ||
f6194225 | 183 | static bool enable_name_policy(void) { |
1d84ad94 | 184 | bool b; |
f6194225 | 185 | |
1d84ad94 | 186 | return proc_cmdline_get_bool("net.ifnames", &b) <= 0 || b; |
f6194225 TG |
187 | } |
188 | ||
0b189e8f ZJS |
189 | static int link_name_type(sd_device *device, unsigned *type) { |
190 | const char *s; | |
191 | int r; | |
192 | ||
193 | r = sd_device_get_sysattr_value(device, "name_assign_type", &s); | |
194 | if (r < 0) | |
195 | return log_device_debug_errno(device, r, "Failed to query name_assign_type: %m"); | |
196 | ||
197 | r = safe_atou(s, type); | |
198 | if (r < 0) | |
199 | return log_device_warning_errno(device, r, "Failed to parse name_assign_type \"%s\": %m", s); | |
200 | ||
201 | log_device_debug(device, "Device has name_assign_type=%d", *type); | |
202 | return 0; | |
203 | } | |
204 | ||
af6f0d42 | 205 | int link_config_load(link_config_ctx *ctx) { |
edf029b7 TG |
206 | _cleanup_strv_free_ char **files; |
207 | char **f; | |
a39f92d3 | 208 | int r; |
af6f0d42 TG |
209 | |
210 | link_configs_free(ctx); | |
211 | ||
f6194225 TG |
212 | if (!enable_name_policy()) { |
213 | ctx->enable_name_policy = false; | |
3f85ef0f | 214 | log_info("Network interface NamePolicy= disabled on kernel command line, ignoring."); |
f6194225 TG |
215 | } |
216 | ||
97f2d76d | 217 | /* update timestamp */ |
2ad8416d | 218 | paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, true); |
af6f0d42 | 219 | |
b5084605 | 220 | r = conf_files_list_strv(&files, ".link", NULL, 0, link_dirs); |
f647962d MS |
221 | if (r < 0) |
222 | return log_error_errno(r, "failed to enumerate link files: %m"); | |
af6f0d42 TG |
223 | |
224 | STRV_FOREACH_BACKWARDS(f, files) { | |
225 | r = load_link(ctx, *f); | |
226 | if (r < 0) | |
227 | return r; | |
228 | } | |
229 | ||
230 | return 0; | |
231 | } | |
232 | ||
233 | bool link_config_should_reload(link_config_ctx *ctx) { | |
2ad8416d | 234 | return paths_check_timestamp(link_dirs, &ctx->link_dirs_ts_usec, false); |
af6f0d42 TG |
235 | } |
236 | ||
e5eadf53 | 237 | int link_config_get(link_config_ctx *ctx, sd_device *device, link_config **ret) { |
af6f0d42 TG |
238 | link_config *link; |
239 | ||
3b64e4d4 TG |
240 | assert(ctx); |
241 | assert(device); | |
242 | assert(ret); | |
243 | ||
af6f0d42 | 244 | LIST_FOREACH(links, link, ctx->links) { |
e5eadf53 YW |
245 | const char *address = NULL, *id_path = NULL, *parent_driver = NULL, *id_net_driver = NULL, *devtype = NULL, *sysname = NULL; |
246 | sd_device *parent; | |
7eb08da4 | 247 | |
e5eadf53 YW |
248 | (void) sd_device_get_sysattr_value(device, "address", &address); |
249 | (void) sd_device_get_property_value(device, "ID_PATH", &id_path); | |
250 | if (sd_device_get_parent(device, &parent) >= 0) | |
251 | (void) sd_device_get_driver(parent, &parent_driver); | |
252 | (void) sd_device_get_property_value(device, "ID_NET_DRIVER", &id_net_driver); | |
253 | (void) sd_device_get_devtype(device, &devtype); | |
254 | (void) sd_device_get_sysname(device, &sysname); | |
b3e01314 | 255 | |
edbb03e9 | 256 | if (net_match_config(link->match_mac, link->match_path, link->match_driver, |
7eb08da4 | 257 | link->match_type, link->match_name, link->match_host, |
5022f08a LP |
258 | link->match_virt, link->match_kernel_cmdline, |
259 | link->match_kernel_version, link->match_arch, | |
e5eadf53 YW |
260 | address ? ether_aton(address) : NULL, |
261 | id_path, | |
262 | parent_driver, | |
263 | id_net_driver, | |
264 | devtype, | |
265 | sysname)) { | |
32bc8adc TG |
266 | if (link->match_name) { |
267 | unsigned char name_assign_type = NET_NAME_UNKNOWN; | |
e5eadf53 | 268 | const char *attr_value; |
32bc8adc | 269 | |
e5eadf53 | 270 | if (sd_device_get_sysattr_value(device, "name_assign_type", &attr_value) >= 0) |
dc751688 | 271 | (void) safe_atou8(attr_value, &name_assign_type); |
32bc8adc TG |
272 | |
273 | if (name_assign_type == NET_NAME_ENUM) { | |
ca6038b8 | 274 | log_warning("Config file %s applies to device based on potentially unpredictable interface name '%s'", |
1b2a7d92 | 275 | link->filename, sysname); |
32bc8adc TG |
276 | *ret = link; |
277 | ||
278 | return 0; | |
279 | } else if (name_assign_type == NET_NAME_RENAMED) { | |
280 | log_warning("Config file %s matches device based on renamed interface name '%s', ignoring", | |
1b2a7d92 | 281 | link->filename, sysname); |
32bc8adc | 282 | |
ca6038b8 | 283 | continue; |
32bc8adc | 284 | } |
ca6038b8 | 285 | } |
32bc8adc | 286 | |
ca6038b8 | 287 | log_debug("Config file %s applies to device %s", |
e5eadf53 | 288 | link->filename, sysname); |
32bc8adc | 289 | |
ca6038b8 | 290 | *ret = link; |
ca6038b8 | 291 | return 0; |
af6f0d42 TG |
292 | } |
293 | } | |
294 | ||
be32eb9b | 295 | *ret = NULL; |
af6f0d42 TG |
296 | return -ENOENT; |
297 | } | |
298 | ||
e5eadf53 | 299 | static bool mac_is_random(sd_device *device) { |
16b9b87a | 300 | const char *s; |
f1ac7002 TG |
301 | unsigned type; |
302 | int r; | |
16b9b87a | 303 | |
3c9b8860 | 304 | /* if we can't get the assign type, assume it is not random */ |
e5eadf53 | 305 | if (sd_device_get_sysattr_value(device, "addr_assign_type", &s) < 0) |
3c9b8860 TG |
306 | return false; |
307 | ||
f1ac7002 TG |
308 | r = safe_atou(s, &type); |
309 | if (r < 0) | |
310 | return false; | |
16b9b87a | 311 | |
04b67d49 TG |
312 | return type == NET_ADDR_RANDOM; |
313 | } | |
314 | ||
e5eadf53 | 315 | static int get_mac(sd_device *device, bool want_random, |
464cf22f | 316 | struct ether_addr *mac) { |
9bf3b535 | 317 | int r; |
16b9b87a | 318 | |
16b9b87a | 319 | if (want_random) |
9bf3b535 | 320 | random_bytes(mac->ether_addr_octet, ETH_ALEN); |
16b9b87a | 321 | else { |
dbe81cbd | 322 | uint64_t result; |
9bf3b535 | 323 | |
e5eadf53 | 324 | r = net_get_unique_predictable_data(device, &result); |
16b9b87a | 325 | if (r < 0) |
55428d84 | 326 | return r; |
16b9b87a | 327 | |
9bf3b535 | 328 | assert_cc(ETH_ALEN <= sizeof(result)); |
dbe81cbd | 329 | memcpy(mac->ether_addr_octet, &result, ETH_ALEN); |
16b9b87a TG |
330 | } |
331 | ||
332 | /* see eth_random_addr in the kernel */ | |
3c9b8860 TG |
333 | mac->ether_addr_octet[0] &= 0xfe; /* clear multicast bit */ |
334 | mac->ether_addr_octet[0] |= 0x02; /* set local assignment bit (IEEE802) */ | |
16b9b87a | 335 | |
16b9b87a TG |
336 | return 0; |
337 | } | |
338 | ||
464cf22f | 339 | int link_config_apply(link_config_ctx *ctx, link_config *config, |
e5eadf53 | 340 | sd_device *device, const char **name) { |
5fde13d7 | 341 | struct ether_addr generated_mac; |
16b9b87a | 342 | struct ether_addr *mac = NULL; |
a39f92d3 SS |
343 | const char *new_name = NULL; |
344 | const char *old_name; | |
0b189e8f ZJS |
345 | unsigned speed, name_type = NET_NAME_UNKNOWN; |
346 | NamePolicy policy; | |
43b3a5ef | 347 | int r, ifindex; |
af6f0d42 | 348 | |
3e137a1b TG |
349 | assert(ctx); |
350 | assert(config); | |
351 | assert(device); | |
352 | assert(name); | |
353 | ||
e5eadf53 YW |
354 | r = sd_device_get_sysname(device, &old_name); |
355 | if (r < 0) | |
356 | return r; | |
af6f0d42 | 357 | |
593022fa | 358 | r = ethtool_set_glinksettings(&ctx->ethtool_fd, old_name, config); |
a39f92d3 SS |
359 | if (r < 0) { |
360 | ||
bb79318e | 361 | if (config->port != _NET_DEV_PORT_INVALID) |
49c603bd | 362 | log_warning_errno(r, "Could not set port (%s) of %s: %m", port_to_string(config->port), old_name); |
bb79318e | 363 | |
5dd10118 | 364 | if (!eqzero(config->advertise)) |
2d18ac44 | 365 | log_warning_errno(r, "Could not set advertise mode: %m"); /* TODO: include modes in the log message. */ |
a39f92d3 | 366 | |
6cf0a204 | 367 | if (config->speed) { |
6cf0a204 SS |
368 | speed = DIV_ROUND_UP(config->speed, 1000000); |
369 | if (r == -EOPNOTSUPP) { | |
370 | r = ethtool_set_speed(&ctx->ethtool_fd, old_name, speed, config->duplex); | |
371 | if (r < 0) | |
372 | log_warning_errno(r, "Could not set speed of %s to %u Mbps: %m", old_name, speed); | |
373 | } | |
374 | } | |
375 | ||
376 | if (config->duplex !=_DUP_INVALID) | |
377 | log_warning_errno(r, "Could not set duplex of %s to (%s): %m", old_name, duplex_to_string(config->duplex)); | |
a39f92d3 | 378 | } |
a5010333 | 379 | |
aedca892 | 380 | r = ethtool_set_wol(&ctx->ethtool_fd, old_name, config->wol); |
5fde13d7 | 381 | if (r < 0) |
755bde37 LP |
382 | log_warning_errno(r, "Could not set WakeOnLan of %s to %s: %m", |
383 | old_name, wol_to_string(config->wol)); | |
af6f0d42 | 384 | |
50725d10 SS |
385 | r = ethtool_set_features(&ctx->ethtool_fd, old_name, config->features); |
386 | if (r < 0) | |
387 | log_warning_errno(r, "Could not set offload features of %s: %m", old_name); | |
388 | ||
5f945202 SS |
389 | if (config->channels.rx_count_set || config->channels.tx_count_set || config->channels.other_count_set || config->channels.combined_count_set) { |
390 | r = ethtool_set_channels(&ctx->ethtool_fd, old_name, &config->channels); | |
391 | if (r < 0) | |
392 | log_warning_errno(r, "Could not set channels of %s: %m", old_name); | |
393 | } | |
394 | ||
e5eadf53 YW |
395 | r = sd_device_get_ifindex(device, &ifindex); |
396 | if (r < 0) | |
b220632c | 397 | return log_device_warning_errno(device, r, "Could not find ifindex: %m"); |
43b3a5ef | 398 | |
daeb71a3 | 399 | |
0b189e8f ZJS |
400 | (void) link_name_type(device, &name_type); |
401 | ||
0b189e8f ZJS |
402 | if (ctx->enable_name_policy && config->name_policy) |
403 | for (NamePolicy *p = config->name_policy; !new_name && *p != _NAMEPOLICY_INVALID; p++) { | |
404 | policy = *p; | |
405 | ||
406 | switch (policy) { | |
407 | case NAMEPOLICY_KERNEL: | |
408 | if (name_type != NET_NAME_PREDICTABLE) | |
409 | continue; | |
410 | ||
411 | /* The kernel claims to have given a predictable name, keep it. */ | |
412 | log_device_debug(device, "Policy *%s*: keeping predictable kernel name", | |
413 | name_policy_to_string(policy)); | |
414 | goto no_rename; | |
3907446f ZJS |
415 | case NAMEPOLICY_KEEP: |
416 | if (!IN_SET(name_type, NET_NAME_USER, NET_NAME_RENAMED)) | |
417 | continue; | |
418 | ||
419 | log_device_debug(device, "Policy *%s*: keeping existing userspace name", | |
420 | name_policy_to_string(policy)); | |
421 | goto no_rename; | |
0b189e8f ZJS |
422 | case NAMEPOLICY_DATABASE: |
423 | (void) sd_device_get_property_value(device, "ID_NET_NAME_FROM_DATABASE", &new_name); | |
424 | break; | |
425 | case NAMEPOLICY_ONBOARD: | |
426 | (void) sd_device_get_property_value(device, "ID_NET_NAME_ONBOARD", &new_name); | |
427 | break; | |
428 | case NAMEPOLICY_SLOT: | |
429 | (void) sd_device_get_property_value(device, "ID_NET_NAME_SLOT", &new_name); | |
430 | break; | |
431 | case NAMEPOLICY_PATH: | |
432 | (void) sd_device_get_property_value(device, "ID_NET_NAME_PATH", &new_name); | |
433 | break; | |
434 | case NAMEPOLICY_MAC: | |
435 | (void) sd_device_get_property_value(device, "ID_NET_NAME_MAC", &new_name); | |
436 | break; | |
437 | default: | |
438 | assert_not_reached("invalid policy"); | |
5fde13d7 | 439 | } |
daeb71a3 | 440 | } |
daeb71a3 | 441 | |
0b189e8f ZJS |
442 | if (new_name) |
443 | log_device_debug(device, "Policy *%s* yields \"%s\".", name_policy_to_string(policy), new_name); | |
444 | else if (config->name) { | |
445 | new_name = config->name; | |
446 | log_device_debug(device, "Policies didn't yield a name, using specified Name=%s.", new_name); | |
ed308023 | 447 | } else |
0b189e8f ZJS |
448 | log_device_debug(device, "Policies didn't yield a name and Name= is not given, not renaming."); |
449 | no_rename: | |
04b67d49 | 450 | |
5fde13d7 TG |
451 | switch (config->mac_policy) { |
452 | case MACPOLICY_PERSISTENT: | |
92d927f8 | 453 | if (mac_is_random(device)) { |
5fde13d7 | 454 | r = get_mac(device, false, &generated_mac); |
1c25683e TG |
455 | if (r == -ENOENT) { |
456 | log_warning_errno(r, "Could not generate persistent MAC address for %s: %m", old_name); | |
a669ea98 | 457 | break; |
1c25683e | 458 | } else if (r < 0) |
16b9b87a | 459 | return r; |
5fde13d7 | 460 | mac = &generated_mac; |
16b9b87a | 461 | } |
5fde13d7 TG |
462 | break; |
463 | case MACPOLICY_RANDOM: | |
16b9b87a | 464 | if (!mac_is_random(device)) { |
5fde13d7 | 465 | r = get_mac(device, true, &generated_mac); |
1c25683e TG |
466 | if (r == -ENOENT) { |
467 | log_warning_errno(r, "Could not generate random MAC address for %s: %m", old_name); | |
a669ea98 | 468 | break; |
1c25683e | 469 | } else if (r < 0) |
16b9b87a | 470 | return r; |
5fde13d7 | 471 | mac = &generated_mac; |
16b9b87a | 472 | } |
5fde13d7 | 473 | break; |
66d3752e | 474 | case MACPOLICY_NONE: |
5fde13d7 TG |
475 | default: |
476 | mac = config->mac; | |
16b9b87a TG |
477 | } |
478 | ||
dab495dc | 479 | r = rtnl_set_link_properties(&ctx->rtnl, ifindex, config->alias, mac, config->mtu); |
f647962d | 480 | if (r < 0) |
7b72fe21 | 481 | return log_warning_errno(r, "Could not set Alias=, MACAddress= or MTU= on %s: %m", old_name); |
43b3a5ef | 482 | |
d95b83b8 TG |
483 | *name = new_name; |
484 | ||
af6f0d42 TG |
485 | return 0; |
486 | } | |
be32eb9b | 487 | |
e5eadf53 | 488 | int link_get_driver(link_config_ctx *ctx, sd_device *device, char **ret) { |
847a8a5f | 489 | const char *name; |
a7f7d1bd | 490 | char *driver = NULL; |
847a8a5f TG |
491 | int r; |
492 | ||
e5eadf53 YW |
493 | r = sd_device_get_sysname(device, &name); |
494 | if (r < 0) | |
495 | return r; | |
847a8a5f | 496 | |
aedca892 | 497 | r = ethtool_get_driver(&ctx->ethtool_fd, name, &driver); |
847a8a5f TG |
498 | if (r < 0) |
499 | return r; | |
500 | ||
501 | *ret = driver; | |
502 | return 0; | |
503 | } | |
504 | ||
2c5859af | 505 | static const char* const mac_policy_table[_MACPOLICY_MAX] = { |
be32eb9b | 506 | [MACPOLICY_PERSISTENT] = "persistent", |
66d3752e | 507 | [MACPOLICY_RANDOM] = "random", |
3907446f | 508 | [MACPOLICY_NONE] = "none", |
be32eb9b TG |
509 | }; |
510 | ||
511 | DEFINE_STRING_TABLE_LOOKUP(mac_policy, MACPolicy); | |
464cf22f TG |
512 | DEFINE_CONFIG_PARSE_ENUM(config_parse_mac_policy, mac_policy, MACPolicy, |
513 | "Failed to parse MAC address policy"); | |
be32eb9b | 514 | |
2c5859af | 515 | static const char* const name_policy_table[_NAMEPOLICY_MAX] = { |
04b67d49 | 516 | [NAMEPOLICY_KERNEL] = "kernel", |
3907446f | 517 | [NAMEPOLICY_KEEP] = "keep", |
e51660ae | 518 | [NAMEPOLICY_DATABASE] = "database", |
be32eb9b TG |
519 | [NAMEPOLICY_ONBOARD] = "onboard", |
520 | [NAMEPOLICY_SLOT] = "slot", | |
521 | [NAMEPOLICY_PATH] = "path", | |
3907446f | 522 | [NAMEPOLICY_MAC] = "mac", |
be32eb9b TG |
523 | }; |
524 | ||
525 | DEFINE_STRING_TABLE_LOOKUP(name_policy, NamePolicy); | |
464cf22f TG |
526 | DEFINE_CONFIG_PARSE_ENUMV(config_parse_name_policy, name_policy, NamePolicy, |
527 | _NAMEPOLICY_INVALID, | |
528 | "Failed to parse interface name policy"); |