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Commit | Line | Data |
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cc73685d | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
0b843d35 | 2 | |
d38dd64a CB |
3 | #ifndef _GNU_SOURCE |
4 | #define _GNU_SOURCE 1 | |
5 | #endif | |
6 | #include <arpa/inet.h> | |
f9373e40 | 7 | #include <ctype.h> |
0b843d35 | 8 | #include <stdio.h> |
ce2f5ae8 | 9 | #include <stdlib.h> |
0b843d35 CB |
10 | #include <string.h> |
11 | ||
12ae2a33 CB |
12 | #include "lxc.h" |
13 | ||
663e9916 | 14 | #include "conf.h" |
d38dd64a | 15 | #include "config.h" |
ce2f5ae8 CB |
16 | #include "confile.h" |
17 | #include "confile_utils.h" | |
18 | #include "error.h" | |
ce2f5ae8 | 19 | #include "list.h" |
fd47e5f1 | 20 | #include "lxc.h" |
28d9e29e | 21 | #include "log.h" |
7b15813c | 22 | #include "macro.h" |
a4809e4e | 23 | #include "memory_utils.h" |
811ef482 | 24 | #include "network.h" |
f9373e40 | 25 | #include "parse.h" |
0b843d35 CB |
26 | #include "utils.h" |
27 | ||
18cd4b54 | 28 | #ifndef HAVE_STRLCPY |
58db1a61 | 29 | #include "strlcpy.h" |
18cd4b54 DJ |
30 | #endif |
31 | ||
ac2cecc4 | 32 | lxc_log_define(confile_utils, lxc); |
ce2f5ae8 | 33 | |
0b843d35 CB |
34 | int parse_idmaps(const char *idmap, char *type, unsigned long *nsid, |
35 | unsigned long *hostid, unsigned long *range) | |
36 | { | |
a4809e4e | 37 | __do_free char *dup = NULL; |
0b843d35 CB |
38 | int ret = -1; |
39 | unsigned long tmp_hostid, tmp_nsid, tmp_range; | |
40 | char tmp_type; | |
41 | char *window, *slide; | |
0b843d35 CB |
42 | |
43 | /* Duplicate string. */ | |
44 | dup = strdup(idmap); | |
45 | if (!dup) | |
a4809e4e | 46 | return ret_errno(ENOMEM); |
0b843d35 CB |
47 | |
48 | /* A prototypical idmap entry would be: "u 1000 1000000 65536" */ | |
49 | ||
50 | /* align */ | |
51 | slide = window = dup; | |
52 | /* skip whitespace */ | |
53 | slide += strspn(slide, " \t\r"); | |
54 | if (slide != window && *slide == '\0') | |
a4809e4e | 55 | return ret_errno(EINVAL); |
0b843d35 CB |
56 | |
57 | /* Validate type. */ | |
a4809e4e CB |
58 | if (*slide != 'u' && *slide != 'g') |
59 | return log_error_errno(-EINVAL, EINVAL, "Invalid id mapping type: %c", *slide); | |
a8b1ac78 | 60 | |
0b843d35 CB |
61 | /* Assign type. */ |
62 | tmp_type = *slide; | |
63 | ||
64 | /* move beyond type */ | |
65 | slide++; | |
66 | /* align */ | |
67 | window = slide; | |
68 | /* Validate that only whitespace follows. */ | |
69 | slide += strspn(slide, " \t\r"); | |
70 | /* There must be whitespace. */ | |
71 | if (slide == window) | |
a4809e4e | 72 | return ret_errno(EINVAL); |
0b843d35 | 73 | |
f37d1c22 | 74 | /* Mark beginning of nsid. */ |
0b843d35 CB |
75 | window = slide; |
76 | /* Validate that non-whitespace follows. */ | |
77 | slide += strcspn(slide, " \t\r"); | |
78 | /* There must be non-whitespace. */ | |
79 | if (slide == window || *slide == '\0') | |
a4809e4e | 80 | return ret_errno(EINVAL); |
f37d1c22 | 81 | /* Mark end of nsid. */ |
0b843d35 CB |
82 | *slide = '\0'; |
83 | ||
f37d1c22 | 84 | /* Parse nsid. */ |
a4809e4e CB |
85 | ret = lxc_safe_ulong(window, &tmp_nsid); |
86 | if (ret < 0) | |
87 | return log_error_errno(ret, errno, "Failed to parse nsid: %s", window); | |
0b843d35 CB |
88 | |
89 | /* Move beyond \0. */ | |
90 | slide++; | |
0b843d35 CB |
91 | /* Validate that only whitespace follows. */ |
92 | slide += strspn(slide, " \t\r"); | |
93 | /* If there was only one whitespace then we whiped it with our \0 above. | |
94 | * So only ensure that we're not at the end of the string. | |
95 | */ | |
96 | if (*slide == '\0') | |
a4809e4e | 97 | return ret_errno(EINVAL); |
0b843d35 CB |
98 | |
99 | /* Mark beginning of hostid. */ | |
100 | window = slide; | |
101 | /* Validate that non-whitespace follows. */ | |
102 | slide += strcspn(slide, " \t\r"); | |
103 | /* There must be non-whitespace. */ | |
104 | if (slide == window || *slide == '\0') | |
a4809e4e | 105 | return ret_errno(EINVAL); |
f37d1c22 | 106 | /* Mark end of nsid. */ |
0b843d35 CB |
107 | *slide = '\0'; |
108 | ||
109 | /* Parse hostid. */ | |
a4809e4e CB |
110 | ret = lxc_safe_ulong(window, &tmp_hostid); |
111 | if (ret < 0) | |
112 | return log_error_errno(ret, errno, "Failed to parse hostid: %s", window); | |
0b843d35 CB |
113 | |
114 | /* Move beyond \0. */ | |
115 | slide++; | |
0b843d35 CB |
116 | /* Validate that only whitespace follows. */ |
117 | slide += strspn(slide, " \t\r"); | |
118 | /* If there was only one whitespace then we whiped it with our \0 above. | |
119 | * So only ensure that we're not at the end of the string. | |
120 | */ | |
121 | if (*slide == '\0') | |
a4809e4e | 122 | return ret_errno(EINVAL); |
0b843d35 CB |
123 | |
124 | /* Mark beginning of range. */ | |
125 | window = slide; | |
126 | /* Validate that non-whitespace follows. */ | |
127 | slide += strcspn(slide, " \t\r"); | |
128 | /* There must be non-whitespace. */ | |
129 | if (slide == window) | |
a4809e4e | 130 | return ret_errno(EINVAL); |
0b843d35 CB |
131 | |
132 | /* The range is the last valid entry we expect. So make sure that there | |
f37d1c22 | 133 | * is no trailing garbage and if there is, error out. |
0b843d35 CB |
134 | */ |
135 | if (*(slide + strspn(slide, " \t\r\n")) != '\0') | |
a4809e4e | 136 | return ret_errno(EINVAL); |
29c98ddd | 137 | |
0b843d35 CB |
138 | /* Mark end of range. */ |
139 | *slide = '\0'; | |
140 | ||
141 | /* Parse range. */ | |
a4809e4e CB |
142 | ret = lxc_safe_ulong(window, &tmp_range); |
143 | if (ret < 0) | |
144 | return log_error_errno(ret, errno, "Failed to parse id mapping range: %s", window); | |
0b843d35 | 145 | |
a4809e4e CB |
146 | *type = tmp_type; |
147 | *nsid = tmp_nsid; | |
0b843d35 | 148 | *hostid = tmp_hostid; |
a4809e4e | 149 | *range = tmp_range; |
0b843d35 CB |
150 | |
151 | /* Yay, we survived. */ | |
a4809e4e | 152 | return 0; |
0b843d35 | 153 | } |
663e9916 CB |
154 | |
155 | bool lxc_config_value_empty(const char *value) | |
156 | { | |
157 | if (value && strlen(value) > 0) | |
158 | return false; | |
159 | ||
160 | return true; | |
161 | } | |
ce2f5ae8 | 162 | |
87d0990c | 163 | static struct lxc_netdev *lxc_network_add(struct list_head *head, int idx, bool tail) |
ce2f5ae8 | 164 | { |
1e323af6 | 165 | __do_free struct lxc_netdev *netdev = NULL; |
ce2f5ae8 CB |
166 | |
167 | /* network does not exist */ | |
9dffc40e | 168 | netdev = zalloc(sizeof(*netdev)); |
ce2f5ae8 | 169 | if (!netdev) |
1e323af6 | 170 | return ret_set_errno(NULL, ENOMEM); |
ce2f5ae8 | 171 | |
05a54a64 CB |
172 | INIT_LIST_HEAD(&netdev->ipv4_addresses); |
173 | INIT_LIST_HEAD(&netdev->ipv6_addresses); | |
ce2f5ae8 CB |
174 | |
175 | /* give network a unique index */ | |
176 | netdev->idx = idx; | |
177 | ||
c302b476 | 178 | if (tail) |
87d0990c | 179 | list_add_tail(&netdev->head, head); |
c302b476 | 180 | else |
87d0990c | 181 | list_add(&netdev->head, head); |
29c98ddd | 182 | |
1e323af6 | 183 | return move_ptr(netdev); |
ce2f5ae8 | 184 | } |
1ed6ba91 | 185 | |
c302b476 CB |
186 | /* Takes care of finding the correct netdev struct in the networks list or |
187 | * allocates a new one if it couldn't be found. | |
188 | */ | |
189 | struct lxc_netdev *lxc_get_netdev_by_idx(struct lxc_conf *conf, | |
190 | unsigned int idx, bool allocate) | |
191 | { | |
87d0990c CB |
192 | struct list_head *netdevs = &conf->netdevs; |
193 | struct list_head *head = netdevs; | |
194 | struct lxc_netdev *netdev; | |
c302b476 CB |
195 | |
196 | /* lookup network */ | |
87d0990c CB |
197 | if (!list_empty(netdevs)) { |
198 | list_for_each_entry(netdev, netdevs, head) { | |
0b73eb05 | 199 | /* found network device */ |
c302b476 CB |
200 | if (netdev->idx == idx) |
201 | return netdev; | |
0b73eb05 | 202 | |
87d0990c CB |
203 | if (netdev->idx > idx) { |
204 | head = &netdev->head; | |
c302b476 | 205 | break; |
87d0990c | 206 | } |
c302b476 CB |
207 | } |
208 | } | |
209 | ||
0b73eb05 | 210 | if (allocate) |
87d0990c | 211 | return lxc_network_add(head, idx, true); |
c302b476 | 212 | |
0b73eb05 | 213 | return NULL; |
c302b476 CB |
214 | } |
215 | ||
1ed6ba91 CB |
216 | void lxc_log_configured_netdevs(const struct lxc_conf *conf) |
217 | { | |
218 | struct lxc_netdev *netdev; | |
87d0990c | 219 | const struct list_head *netdevs = &conf->netdevs; |
1ed6ba91 | 220 | |
4ac35afb | 221 | if (!lxc_log_trace()) |
1ed6ba91 CB |
222 | return; |
223 | ||
87d0990c | 224 | if (list_empty(netdevs)) { |
1ed6ba91 CB |
225 | TRACE("container has no networks configured"); |
226 | return; | |
227 | } | |
228 | ||
87d0990c | 229 | list_for_each_entry(netdev, netdevs, head) { |
9b0df30f CB |
230 | struct lxc_list *cur, *next; |
231 | struct lxc_inetdev *inet4dev; | |
232 | struct lxc_inet6dev *inet6dev; | |
233 | char bufinet4[INET_ADDRSTRLEN], bufinet6[INET6_ADDRSTRLEN]; | |
234 | ||
c302b476 | 235 | TRACE("index: %zd", netdev->idx); |
7a582518 | 236 | TRACE("ifindex: %d", netdev->ifindex); |
29c98ddd | 237 | |
1ed6ba91 CB |
238 | switch (netdev->type) { |
239 | case LXC_NET_VETH: | |
240 | TRACE("type: veth"); | |
134ded24 | 241 | TRACE("veth mode: %d", netdev->priv.veth_attr.mode); |
29c98ddd | 242 | |
de4855a8 | 243 | if (netdev->priv.veth_attr.pair[0] != '\0') |
9b0df30f CB |
244 | TRACE("veth pair: %s", |
245 | netdev->priv.veth_attr.pair); | |
29c98ddd | 246 | |
8ce727fc CB |
247 | if (netdev->priv.veth_attr.veth1[0] != '\0') |
248 | TRACE("veth1 : %s", | |
249 | netdev->priv.veth_attr.veth1); | |
29c98ddd | 250 | |
d952b351 CB |
251 | if (netdev->priv.veth_attr.ifindex > 0) |
252 | TRACE("host side ifindex for veth device: %d", | |
253 | netdev->priv.veth_attr.ifindex); | |
134ded24 TP |
254 | |
255 | if (netdev->priv.veth_attr.vlan_id_set) | |
256 | TRACE("veth vlan id: %d", netdev->priv.veth_attr.vlan_id); | |
257 | ||
1f92ddc1 TP |
258 | lxc_list_for_each_safe(cur, &netdev->priv.veth_attr.vlan_tagged_ids, next) { |
259 | unsigned short vlan_tagged_id = PTR_TO_USHORT(cur->elem); | |
260 | TRACE("veth vlan tagged id: %u", vlan_tagged_id); | |
261 | } | |
262 | ||
1ed6ba91 CB |
263 | break; |
264 | case LXC_NET_MACVLAN: | |
265 | TRACE("type: macvlan"); | |
29c98ddd | 266 | |
9b0df30f | 267 | if (netdev->priv.macvlan_attr.mode > 0) { |
7b15813c | 268 | char *mode; |
29c98ddd | 269 | |
7b15813c | 270 | mode = lxc_macvlan_flag_to_mode( |
9b0df30f CB |
271 | netdev->priv.macvlan_attr.mode); |
272 | TRACE("macvlan mode: %s", | |
7b15813c | 273 | mode ? mode : "(invalid mode)"); |
9b0df30f | 274 | } |
1ed6ba91 | 275 | break; |
c9f52382 | 276 | case LXC_NET_IPVLAN: |
277 | TRACE("type: ipvlan"); | |
278 | ||
279 | char *mode; | |
280 | mode = lxc_ipvlan_flag_to_mode(netdev->priv.ipvlan_attr.mode); | |
281 | TRACE("ipvlan mode: %s", mode ? mode : "(invalid mode)"); | |
282 | ||
283 | char *isolation; | |
284 | isolation = lxc_ipvlan_flag_to_isolation(netdev->priv.ipvlan_attr.isolation); | |
285 | TRACE("ipvlan isolation: %s", isolation ? isolation : "(invalid isolation)"); | |
286 | break; | |
1ed6ba91 CB |
287 | case LXC_NET_VLAN: |
288 | TRACE("type: vlan"); | |
9b0df30f | 289 | TRACE("vlan id: %d", netdev->priv.vlan_attr.vid); |
1ed6ba91 CB |
290 | break; |
291 | case LXC_NET_PHYS: | |
292 | TRACE("type: phys"); | |
29c98ddd | 293 | |
294 | if (netdev->priv.phys_attr.ifindex > 0) | |
b809f232 CB |
295 | TRACE("host side ifindex for phys device: %d", |
296 | netdev->priv.phys_attr.ifindex); | |
1ed6ba91 CB |
297 | break; |
298 | case LXC_NET_EMPTY: | |
299 | TRACE("type: empty"); | |
300 | break; | |
301 | case LXC_NET_NONE: | |
302 | TRACE("type: none"); | |
303 | break; | |
304 | default: | |
d4a7da46 | 305 | ERROR("Invalid network type %d", netdev->type); |
1ed6ba91 CB |
306 | return; |
307 | } | |
308 | ||
9b0df30f CB |
309 | if (netdev->type != LXC_NET_EMPTY) { |
310 | TRACE("flags: %s", | |
311 | netdev->flags == IFF_UP ? "up" : "none"); | |
29c98ddd | 312 | |
de4855a8 | 313 | if (netdev->link[0] != '\0') |
9b0df30f | 314 | TRACE("link: %s", netdev->link); |
29c98ddd | 315 | |
6509154d | 316 | /* l2proxy only used when link is specified */ |
317 | if (netdev->link[0] != '\0') | |
318 | TRACE("l2proxy: %s", netdev->l2proxy ? "true" : "false"); | |
319 | ||
de4855a8 | 320 | if (netdev->name[0] != '\0') |
9b0df30f | 321 | TRACE("name: %s", netdev->name); |
29c98ddd | 322 | |
9b0df30f CB |
323 | if (netdev->hwaddr) |
324 | TRACE("hwaddr: %s", netdev->hwaddr); | |
29c98ddd | 325 | |
9b0df30f CB |
326 | if (netdev->mtu) |
327 | TRACE("mtu: %s", netdev->mtu); | |
29c98ddd | 328 | |
9b0df30f CB |
329 | if (netdev->upscript) |
330 | TRACE("upscript: %s", netdev->upscript); | |
29c98ddd | 331 | |
9b0df30f CB |
332 | if (netdev->downscript) |
333 | TRACE("downscript: %s", netdev->downscript); | |
334 | ||
335 | TRACE("ipv4 gateway auto: %s", | |
336 | netdev->ipv4_gateway_auto ? "true" : "false"); | |
337 | ||
a2f9a670 | 338 | TRACE("ipv4 gateway dev: %s", |
339 | netdev->ipv4_gateway_dev ? "true" : "false"); | |
340 | ||
9b0df30f CB |
341 | if (netdev->ipv4_gateway) { |
342 | inet_ntop(AF_INET, netdev->ipv4_gateway, | |
343 | bufinet4, sizeof(bufinet4)); | |
344 | TRACE("ipv4 gateway: %s", bufinet4); | |
345 | } | |
346 | ||
05a54a64 | 347 | list_for_each_entry(inet4dev, &netdev->ipv4_addresses, head) { |
9b0df30f CB |
348 | inet_ntop(AF_INET, &inet4dev->addr, bufinet4, |
349 | sizeof(bufinet4)); | |
350 | TRACE("ipv4 addr: %s", bufinet4); | |
351 | } | |
352 | ||
353 | TRACE("ipv6 gateway auto: %s", | |
354 | netdev->ipv6_gateway_auto ? "true" : "false"); | |
29c98ddd | 355 | |
a2f9a670 | 356 | TRACE("ipv6 gateway dev: %s", |
357 | netdev->ipv6_gateway_dev ? "true" : "false"); | |
358 | ||
9b0df30f CB |
359 | if (netdev->ipv6_gateway) { |
360 | inet_ntop(AF_INET6, netdev->ipv6_gateway, | |
361 | bufinet6, sizeof(bufinet6)); | |
362 | TRACE("ipv6 gateway: %s", bufinet6); | |
363 | } | |
29c98ddd | 364 | |
05a54a64 | 365 | list_for_each_entry(inet6dev, &netdev->ipv6_addresses, head) { |
9b0df30f CB |
366 | inet_ntop(AF_INET6, &inet6dev->addr, bufinet6, |
367 | sizeof(bufinet6)); | |
368 | TRACE("ipv6 addr: %s", bufinet6); | |
369 | } | |
d4a7da46 | 370 | |
371 | if (netdev->type == LXC_NET_VETH) { | |
303707f6 | 372 | list_for_each_entry(inet4dev, &netdev->priv.veth_attr.ipv4_routes, head) { |
d4a7da46 | 373 | if (!inet_ntop(AF_INET, &inet4dev->addr, bufinet4, sizeof(bufinet4))) { |
374 | ERROR("Invalid ipv4 veth route"); | |
375 | return; | |
376 | } | |
377 | ||
378 | TRACE("ipv4 veth route: %s/%u", bufinet4, inet4dev->prefix); | |
379 | } | |
380 | ||
6bf0c06b | 381 | list_for_each_entry(inet6dev, &netdev->priv.veth_attr.ipv6_routes, head) { |
d4a7da46 | 382 | if (!inet_ntop(AF_INET6, &inet6dev->addr, bufinet6, sizeof(bufinet6))) { |
383 | ERROR("Invalid ipv6 veth route"); | |
384 | return; | |
385 | } | |
386 | ||
387 | TRACE("ipv6 veth route: %s/%u", bufinet6, inet6dev->prefix); | |
388 | } | |
389 | } | |
9b0df30f | 390 | } |
1ed6ba91 CB |
391 | } |
392 | } | |
519df1c1 | 393 | |
8d508eaa | 394 | void lxc_clear_netdev(struct lxc_netdev *netdev) |
e5d2fd7c CB |
395 | { |
396 | struct lxc_list *cur, *next; | |
87d0990c | 397 | struct list_head head; |
2ec31bbd | 398 | struct lxc_inetdev *inetdev, *ninetdev; |
cd32fc73 | 399 | struct lxc_inet6dev *inet6dev, *ninet6dev; |
8d508eaa | 400 | ssize_t idx; |
e5d2fd7c | 401 | |
06db6101 CB |
402 | if (!netdev) |
403 | return; | |
404 | ||
8d508eaa CB |
405 | idx = netdev->idx; |
406 | ||
407 | free_disarm(netdev->upscript); | |
408 | free_disarm(netdev->downscript); | |
409 | free_disarm(netdev->hwaddr); | |
410 | free_disarm(netdev->mtu); | |
e5d2fd7c | 411 | |
8d508eaa | 412 | free_disarm(netdev->ipv4_gateway); |
05a54a64 | 413 | list_for_each_entry_safe(inetdev, ninetdev, &netdev->ipv4_addresses, head) { |
2ec31bbd CB |
414 | list_del(&inetdev->head); |
415 | free(inetdev); | |
e5d2fd7c CB |
416 | } |
417 | ||
8d508eaa | 418 | free_disarm(netdev->ipv6_gateway); |
05a54a64 | 419 | list_for_each_entry_safe(inet6dev, ninet6dev, &netdev->ipv6_addresses, head) { |
cd32fc73 CB |
420 | list_del(&inet6dev->head); |
421 | free(inet6dev); | |
e5d2fd7c CB |
422 | } |
423 | ||
d4a7da46 | 424 | if (netdev->type == LXC_NET_VETH) { |
303707f6 CB |
425 | list_for_each_entry_safe(inetdev, ninetdev, &netdev->priv.veth_attr.ipv4_routes, head) { |
426 | list_del(&inetdev->head); | |
427 | free(inetdev); | |
d4a7da46 | 428 | } |
429 | ||
6bf0c06b CB |
430 | list_for_each_entry_safe(inet6dev, ninet6dev, &netdev->priv.veth_attr.ipv6_routes, head) { |
431 | list_del(&inet6dev->head); | |
432 | free(inet6dev); | |
d4a7da46 | 433 | } |
3a0049f3 TP |
434 | |
435 | lxc_list_for_each_safe(cur, &netdev->priv.veth_attr.vlan_tagged_ids, next) { | |
436 | lxc_list_del(cur); | |
437 | free(cur); | |
438 | } | |
d4a7da46 | 439 | } |
440 | ||
87d0990c | 441 | head = netdev->head; |
8d508eaa | 442 | memset(netdev, 0, sizeof(struct lxc_netdev)); |
87d0990c | 443 | netdev->head = head; |
05a54a64 CB |
444 | INIT_LIST_HEAD(&netdev->ipv4_addresses); |
445 | INIT_LIST_HEAD(&netdev->ipv6_addresses); | |
8d508eaa CB |
446 | netdev->type = -1; |
447 | netdev->idx = idx; | |
448 | } | |
449 | ||
450 | static void lxc_free_netdev(struct lxc_netdev *netdev) | |
451 | { | |
452 | if (netdev) { | |
453 | lxc_clear_netdev(netdev); | |
454 | free(netdev); | |
455 | } | |
e5d2fd7c CB |
456 | } |
457 | ||
519df1c1 CB |
458 | bool lxc_remove_nic_by_idx(struct lxc_conf *conf, unsigned int idx) |
459 | { | |
87d0990c | 460 | struct lxc_netdev *netdev; |
519df1c1 | 461 | |
87d0990c | 462 | if (list_empty(&conf->netdevs)) |
0b73eb05 CB |
463 | return false; |
464 | ||
87d0990c | 465 | list_for_each_entry(netdev, &conf->netdevs, head) { |
519df1c1 CB |
466 | if (netdev->idx != idx) |
467 | continue; | |
468 | ||
87d0990c | 469 | list_del(&netdev->head); |
0b73eb05 | 470 | lxc_free_netdev(netdev); |
06db6101 | 471 | return true; |
519df1c1 CB |
472 | } |
473 | ||
06db6101 | 474 | return false; |
519df1c1 | 475 | } |
e5d2fd7c | 476 | |
87d0990c | 477 | void lxc_free_networks(struct lxc_conf *conf) |
e5d2fd7c | 478 | { |
87d0990c | 479 | struct lxc_netdev *netdev, *n; |
e5d2fd7c | 480 | |
87d0990c CB |
481 | if (list_empty(&conf->netdevs)) |
482 | return; | |
c461b9c7 | 483 | |
87d0990c CB |
484 | list_for_each_entry_safe(netdev, n, &conf->netdevs, head) { |
485 | list_del(&netdev->head); | |
e5d2fd7c | 486 | lxc_free_netdev(netdev); |
e5d2fd7c CB |
487 | } |
488 | ||
489 | /* prevent segfaults */ | |
87d0990c | 490 | INIT_LIST_HEAD(&conf->netdevs); |
e5d2fd7c | 491 | } |
9b0df30f | 492 | |
3f0ed090 TP |
493 | static struct lxc_veth_mode { |
494 | char *name; | |
495 | int mode; | |
496 | } veth_mode[] = { | |
ecf953c5 CB |
497 | { "bridge", VETH_MODE_BRIDGE }, |
498 | { "router", VETH_MODE_ROUTER }, | |
3f0ed090 TP |
499 | }; |
500 | ||
501 | int lxc_veth_mode_to_flag(int *mode, const char *value) | |
502 | { | |
503 | for (size_t i = 0; i < sizeof(veth_mode) / sizeof(veth_mode[0]); i++) { | |
676cd75c | 504 | if (!strequal(veth_mode[i].name, value)) |
3f0ed090 TP |
505 | continue; |
506 | ||
507 | *mode = veth_mode[i].mode; | |
508 | return 0; | |
509 | } | |
510 | ||
9e75cf7a | 511 | return ret_errno(EINVAL); |
3f0ed090 TP |
512 | } |
513 | ||
756cadb6 CB |
514 | char *lxc_veth_flag_to_mode(int mode) |
515 | { | |
516 | for (size_t i = 0; i < sizeof(veth_mode) / sizeof(veth_mode[0]); i++) { | |
517 | if (veth_mode[i].mode != mode) | |
518 | continue; | |
519 | ||
520 | return veth_mode[i].name; | |
521 | } | |
522 | ||
97ea2c2d | 523 | return ret_set_errno(NULL, EINVAL); |
756cadb6 CB |
524 | } |
525 | ||
7b15813c | 526 | static struct lxc_macvlan_mode { |
9b0df30f CB |
527 | char *name; |
528 | int mode; | |
529 | } macvlan_mode[] = { | |
faf7e3ba CB |
530 | { "private", MACVLAN_MODE_PRIVATE }, |
531 | { "vepa", MACVLAN_MODE_VEPA }, | |
532 | { "bridge", MACVLAN_MODE_BRIDGE }, | |
533 | { "passthru", MACVLAN_MODE_PASSTHRU }, | |
9b0df30f CB |
534 | }; |
535 | ||
536 | int lxc_macvlan_mode_to_flag(int *mode, const char *value) | |
537 | { | |
fa204110 | 538 | for (size_t i = 0; i < sizeof(macvlan_mode) / sizeof(macvlan_mode[0]); i++) { |
676cd75c | 539 | if (!strequal(macvlan_mode[i].name, value)) |
9b0df30f CB |
540 | continue; |
541 | ||
542 | *mode = macvlan_mode[i].mode; | |
543 | return 0; | |
544 | } | |
545 | ||
fa204110 | 546 | return ret_errno(EINVAL); |
9b0df30f CB |
547 | } |
548 | ||
549 | char *lxc_macvlan_flag_to_mode(int mode) | |
550 | { | |
65066407 | 551 | for (size_t i = 0; i < sizeof(macvlan_mode) / sizeof(macvlan_mode[0]); i++) { |
b56680fd | 552 | if (macvlan_mode[i].mode != mode) |
9b0df30f CB |
553 | continue; |
554 | ||
555 | return macvlan_mode[i].name; | |
556 | } | |
557 | ||
65066407 | 558 | return ret_set_errno(NULL, EINVAL); |
9b0df30f | 559 | } |
f9373e40 | 560 | |
c9f52382 | 561 | static struct lxc_ipvlan_mode { |
562 | char *name; | |
563 | int mode; | |
564 | } ipvlan_mode[] = { | |
cdc5e017 CB |
565 | { "l3", IPVLAN_MODE_L3 }, |
566 | { "l3s", IPVLAN_MODE_L3S }, | |
567 | { "l2", IPVLAN_MODE_L2 }, | |
c9f52382 | 568 | }; |
569 | ||
570 | int lxc_ipvlan_mode_to_flag(int *mode, const char *value) | |
571 | { | |
572 | for (size_t i = 0; i < sizeof(ipvlan_mode) / sizeof(ipvlan_mode[0]); i++) { | |
676cd75c | 573 | if (!strequal(ipvlan_mode[i].name, value)) |
c9f52382 | 574 | continue; |
575 | ||
576 | *mode = ipvlan_mode[i].mode; | |
577 | return 0; | |
578 | } | |
579 | ||
345c0c49 | 580 | return ret_errno(EINVAL); |
c9f52382 | 581 | } |
582 | ||
583 | char *lxc_ipvlan_flag_to_mode(int mode) | |
584 | { | |
585 | for (size_t i = 0; i < sizeof(ipvlan_mode) / sizeof(ipvlan_mode[0]); i++) { | |
586 | if (ipvlan_mode[i].mode != mode) | |
587 | continue; | |
588 | ||
589 | return ipvlan_mode[i].name; | |
590 | } | |
591 | ||
c789d162 | 592 | return ret_set_errno(NULL, EINVAL); |
c9f52382 | 593 | } |
594 | ||
595 | static struct lxc_ipvlan_isolation { | |
596 | char *name; | |
597 | int flag; | |
598 | } ipvlan_isolation[] = { | |
11e5a00f CB |
599 | { "bridge", IPVLAN_ISOLATION_BRIDGE }, |
600 | { "private", IPVLAN_ISOLATION_PRIVATE }, | |
601 | { "vepa", IPVLAN_ISOLATION_VEPA }, | |
c9f52382 | 602 | }; |
603 | ||
604 | int lxc_ipvlan_isolation_to_flag(int *flag, const char *value) | |
605 | { | |
606 | for (size_t i = 0; i < sizeof(ipvlan_isolation) / sizeof(ipvlan_isolation[0]); i++) { | |
676cd75c | 607 | if (!strequal(ipvlan_isolation[i].name, value)) |
c9f52382 | 608 | continue; |
609 | ||
610 | *flag = ipvlan_isolation[i].flag; | |
611 | return 0; | |
612 | } | |
613 | ||
f2713131 | 614 | return ret_errno(EINVAL); |
c9f52382 | 615 | } |
616 | ||
617 | char *lxc_ipvlan_flag_to_isolation(int flag) | |
618 | { | |
619 | for (size_t i = 0; i < sizeof(ipvlan_isolation) / sizeof(ipvlan_isolation[0]); i++) { | |
620 | if (ipvlan_isolation[i].flag != flag) | |
621 | continue; | |
622 | ||
623 | return ipvlan_isolation[i].name; | |
624 | } | |
625 | ||
6998880b | 626 | return ret_set_errno(NULL, EINVAL); |
c9f52382 | 627 | } |
628 | ||
f9373e40 CB |
629 | int set_config_string_item(char **conf_item, const char *value) |
630 | { | |
631 | char *new_value; | |
632 | ||
633 | if (lxc_config_value_empty(value)) { | |
f4d287ea | 634 | free_disarm(*conf_item); |
f9373e40 CB |
635 | return 0; |
636 | } | |
637 | ||
638 | new_value = strdup(value); | |
f4d287ea CB |
639 | if (!new_value) |
640 | return log_error_errno(-ENOMEM, ENOMEM, "Failed to duplicate string \"%s\"", value); | |
f9373e40 | 641 | |
f4d287ea | 642 | free_move_ptr(*conf_item, new_value); |
f9373e40 CB |
643 | return 0; |
644 | } | |
645 | ||
646 | int set_config_string_item_max(char **conf_item, const char *value, size_t max) | |
647 | { | |
21af2fbe CB |
648 | if (strlen(value) >= max) |
649 | return log_error_errno(-ENAMETOOLONG, ENAMETOOLONG, "%s is too long (>= %lu)", value, (unsigned long)max); | |
f9373e40 CB |
650 | |
651 | return set_config_string_item(conf_item, value); | |
652 | } | |
653 | ||
654 | int set_config_path_item(char **conf_item, const char *value) | |
655 | { | |
28e54be1 | 656 | __do_free char *valdup = NULL; |
7d714159 | 657 | |
28e54be1 CB |
658 | valdup = path_simplify(value); |
659 | if (!valdup) | |
660 | return -ENOMEM; | |
7d714159 | 661 | |
28e54be1 | 662 | return set_config_string_item_max(conf_item, valdup, PATH_MAX); |
f9373e40 CB |
663 | } |
664 | ||
8f818a84 MB |
665 | int set_config_bool_item(bool *conf_item, const char *value, bool empty_conf_action) |
666 | { | |
4f3de2ac | 667 | int ret; |
8f818a84 MB |
668 | unsigned int val = 0; |
669 | ||
670 | if (lxc_config_value_empty(value)) { | |
671 | *conf_item = empty_conf_action; | |
672 | return 0; | |
673 | } | |
674 | ||
4f3de2ac CB |
675 | ret = lxc_safe_uint(value, &val); |
676 | if (ret < 0) | |
677 | return ret; | |
8f818a84 MB |
678 | |
679 | switch (val) { | |
680 | case 0: | |
681 | *conf_item = false; | |
682 | return 0; | |
683 | case 1: | |
684 | *conf_item = true; | |
685 | return 0; | |
686 | } | |
687 | ||
4f3de2ac | 688 | return ret_errno(EINVAL); |
8f818a84 MB |
689 | } |
690 | ||
f9373e40 CB |
691 | int config_ip_prefix(struct in_addr *addr) |
692 | { | |
693 | if (IN_CLASSA(addr->s_addr)) | |
694 | return 32 - IN_CLASSA_NSHIFT; | |
29c98ddd | 695 | |
f9373e40 CB |
696 | if (IN_CLASSB(addr->s_addr)) |
697 | return 32 - IN_CLASSB_NSHIFT; | |
29c98ddd | 698 | |
f9373e40 CB |
699 | if (IN_CLASSC(addr->s_addr)) |
700 | return 32 - IN_CLASSC_NSHIFT; | |
701 | ||
702 | return 0; | |
703 | } | |
704 | ||
18cd4b54 | 705 | int network_ifname(char *valuep, const char *value, size_t size) |
f9373e40 | 706 | { |
18cd4b54 DJ |
707 | size_t retlen; |
708 | ||
709 | if (!valuep || !value) | |
ffb7e0f6 | 710 | return ret_errno(EINVAL); |
18cd4b54 DJ |
711 | |
712 | retlen = strlcpy(valuep, value, size); | |
29c98ddd | 713 | if (retlen >= size) |
ffb7e0f6 | 714 | ERROR("Network device name \"%s\" is too long (>= %zu)", value, size); |
de4855a8 | 715 | |
de4855a8 | 716 | return 0; |
f9373e40 CB |
717 | } |
718 | ||
3db41a6c CB |
719 | bool lxc_config_net_is_hwaddr(const char *line) |
720 | { | |
721 | unsigned index; | |
722 | char tmp[7]; | |
723 | ||
1c95f94c | 724 | if (!strnequal(line, "lxc.net", 7)) |
3db41a6c CB |
725 | return false; |
726 | ||
1c95f94c | 727 | if (strnequal(line, "lxc.net.hwaddr", 14)) |
3db41a6c CB |
728 | return true; |
729 | ||
1c95f94c | 730 | if (strnequal(line, "lxc.network.hwaddr", 18)) |
3db41a6c CB |
731 | return true; |
732 | ||
733 | if (sscanf(line, "lxc.net.%u.%6s", &index, tmp) == 2 || | |
734 | sscanf(line, "lxc.network.%u.%6s", &index, tmp) == 2) | |
1c95f94c | 735 | return strnequal(tmp, "hwaddr", 6); |
3db41a6c CB |
736 | |
737 | return false; | |
738 | } | |
739 | ||
29c98ddd | 740 | void rand_complete_hwaddr(char *hwaddr) |
f9373e40 CB |
741 | { |
742 | const char hex[] = "0123456789abcdef"; | |
743 | char *curs = hwaddr; | |
280cc35f | 744 | #ifdef HAVE_RAND_R |
f9373e40 CB |
745 | unsigned int seed; |
746 | ||
747 | seed = randseed(false); | |
280cc35f | 748 | #else |
749 | ||
750 | (void)randseed(true); | |
f9373e40 | 751 | #endif |
280cc35f | 752 | |
f9373e40 CB |
753 | while (*curs != '\0' && *curs != '\n') { |
754 | if (*curs == 'x' || *curs == 'X') { | |
755 | if (curs - hwaddr == 1) { | |
756 | /* ensure address is unicast */ | |
757 | #ifdef HAVE_RAND_R | |
758 | *curs = hex[rand_r(&seed) & 0x0E]; | |
759 | } else { | |
760 | *curs = hex[rand_r(&seed) & 0x0F]; | |
761 | #else | |
762 | *curs = hex[rand() & 0x0E]; | |
763 | } else { | |
764 | *curs = hex[rand() & 0x0F]; | |
765 | #endif | |
766 | } | |
767 | } | |
768 | curs++; | |
769 | } | |
f9373e40 CB |
770 | } |
771 | ||
f9373e40 CB |
772 | bool new_hwaddr(char *hwaddr) |
773 | { | |
774 | int ret; | |
280cc35f | 775 | #ifdef HAVE_RAND_R |
776 | unsigned int seed; | |
777 | ||
778 | seed = randseed(false); | |
779 | ||
34a51534 | 780 | ret = strnprintf(hwaddr, 18, "00:16:3e:%02x:%02x:%02x", rand_r(&seed) % 255, |
280cc35f | 781 | rand_r(&seed) % 255, rand_r(&seed) % 255); |
782 | #else | |
f9373e40 CB |
783 | |
784 | (void)randseed(true); | |
785 | ||
34a51534 | 786 | ret = strnprintf(hwaddr, 18, "00:16:3e:%02x:%02x:%02x", rand() % 255, |
f9373e40 | 787 | rand() % 255, rand() % 255); |
280cc35f | 788 | #endif |
34a51534 CB |
789 | if (ret < 0) |
790 | return log_error_errno(false, EIO, "Failed to call strnprintf()"); | |
f9373e40 CB |
791 | |
792 | return true; | |
793 | } | |
953fe44f CB |
794 | |
795 | int lxc_get_conf_str(char *retv, int inlen, const char *value) | |
796 | { | |
d3bdf12c CB |
797 | size_t value_len; |
798 | ||
953fe44f CB |
799 | if (!value) |
800 | return 0; | |
d3bdf12c CB |
801 | |
802 | value_len = strlen(value); | |
6c7c4a01 | 803 | if (retv && (size_t)inlen >= value_len + 1) |
d3bdf12c | 804 | memcpy(retv, value, value_len + 1); |
953fe44f | 805 | |
29c98ddd | 806 | return value_len; |
953fe44f CB |
807 | } |
808 | ||
6e54330c CB |
809 | int lxc_get_conf_bool(struct lxc_conf *c, char *retv, int inlen, bool v) |
810 | { | |
811 | int len; | |
812 | int fulllen = 0; | |
813 | ||
814 | if (!retv) | |
815 | inlen = 0; | |
816 | else | |
817 | memset(retv, 0, inlen); | |
818 | ||
819 | strprint(retv, inlen, "%d", v); | |
820 | ||
821 | return fulllen; | |
822 | } | |
823 | ||
953fe44f CB |
824 | int lxc_get_conf_int(struct lxc_conf *c, char *retv, int inlen, int v) |
825 | { | |
1396b610 DJ |
826 | int len; |
827 | int fulllen = 0; | |
828 | ||
953fe44f CB |
829 | if (!retv) |
830 | inlen = 0; | |
831 | else | |
832 | memset(retv, 0, inlen); | |
833 | ||
1396b610 DJ |
834 | strprint(retv, inlen, "%d", v); |
835 | ||
836 | return fulllen; | |
953fe44f | 837 | } |
f7662514 | 838 | |
885766f5 CB |
839 | int lxc_get_conf_size_t(struct lxc_conf *c, char *retv, int inlen, size_t v) |
840 | { | |
1396b610 DJ |
841 | int len; |
842 | int fulllen = 0; | |
843 | ||
885766f5 CB |
844 | if (!retv) |
845 | inlen = 0; | |
846 | else | |
847 | memset(retv, 0, inlen); | |
848 | ||
1396b610 DJ |
849 | strprint(retv, inlen, "%zu", v); |
850 | ||
851 | return fulllen; | |
885766f5 CB |
852 | } |
853 | ||
2ea479c9 CB |
854 | int lxc_get_conf_uint64(struct lxc_conf *c, char *retv, int inlen, uint64_t v) |
855 | { | |
1396b610 DJ |
856 | int len; |
857 | int fulllen = 0; | |
858 | ||
2ea479c9 CB |
859 | if (!retv) |
860 | inlen = 0; | |
861 | else | |
862 | memset(retv, 0, inlen); | |
863 | ||
1396b610 DJ |
864 | strprint(retv, inlen, "%"PRIu64, v); |
865 | ||
866 | return fulllen; | |
2ea479c9 CB |
867 | } |
868 | ||
28d9e29e CB |
869 | static int lxc_container_name_to_pid(const char *lxcname_or_pid, |
870 | const char *lxcpath) | |
871 | { | |
872 | int ret; | |
873 | signed long int pid; | |
874 | char *err = NULL; | |
875 | ||
876 | pid = strtol(lxcname_or_pid, &err, 10); | |
877 | if (*err != '\0' || pid < 1) { | |
fd47e5f1 | 878 | __put_lxc_container struct lxc_container *c = NULL; |
28d9e29e CB |
879 | |
880 | c = lxc_container_new(lxcname_or_pid, lxcpath); | |
fd47e5f1 CB |
881 | if (!c) |
882 | return log_error_errno(-EINVAL, EINVAL, "\"%s\" is not a valid pid nor a container name", lxcname_or_pid); | |
28d9e29e | 883 | |
fd47e5f1 CB |
884 | if (!c->may_control(c)) |
885 | return log_error_errno(-EPERM, EPERM, "Insufficient privileges to control container \"%s\"", c->name); | |
28d9e29e CB |
886 | |
887 | pid = c->init_pid(c); | |
fd47e5f1 CB |
888 | if (pid < 1) |
889 | return log_error_errno(-EINVAL, EINVAL, "Container \"%s\" is not running", c->name); | |
28d9e29e | 890 | |
28d9e29e CB |
891 | } |
892 | ||
893 | ret = kill(pid, 0); | |
fd47e5f1 CB |
894 | if (ret < 0) |
895 | return log_error_errno(-errno, errno, "Failed to send signal to pid %d", (int)pid); | |
28d9e29e CB |
896 | |
897 | return pid; | |
898 | } | |
899 | ||
39e6fd36 | 900 | int lxc_inherit_namespace(const char *nsfd_path, const char *lxcpath, |
28d9e29e CB |
901 | const char *namespace) |
902 | { | |
a011ec99 | 903 | __do_free char *dup = NULL; |
28d9e29e | 904 | int fd, pid; |
a011ec99 | 905 | char *lastslash; |
28d9e29e | 906 | |
39e6fd36 SH |
907 | if (nsfd_path[0] == '/') { |
908 | return open(nsfd_path, O_RDONLY | O_CLOEXEC); | |
909 | } | |
910 | ||
911 | lastslash = strrchr(nsfd_path, '/'); | |
28d9e29e | 912 | if (lastslash) { |
39e6fd36 | 913 | dup = strdup(nsfd_path); |
28d9e29e | 914 | if (!dup) |
a011ec99 | 915 | return ret_errno(ENOMEM); |
28d9e29e | 916 | |
39e6fd36 | 917 | dup[lastslash - nsfd_path] = '\0'; |
a011ec99 CB |
918 | lxcpath = lastslash + 1; |
919 | nsfd_path = lastslash + 1; | |
28d9e29e CB |
920 | } |
921 | ||
a011ec99 | 922 | pid = lxc_container_name_to_pid(nsfd_path, lxcpath); |
28d9e29e | 923 | if (pid < 0) |
a011ec99 | 924 | return pid; |
28d9e29e CB |
925 | |
926 | fd = lxc_preserve_ns(pid, namespace); | |
927 | if (fd < 0) | |
a011ec99 | 928 | return -errno; |
28d9e29e CB |
929 | |
930 | return fd; | |
931 | } | |
f6e32eb0 CB |
932 | |
933 | struct signame { | |
934 | int num; | |
935 | const char *name; | |
936 | }; | |
937 | ||
938 | static const struct signame signames[] = { | |
939 | { SIGHUP, "HUP" }, | |
940 | { SIGINT, "INT" }, | |
941 | { SIGQUIT, "QUIT" }, | |
942 | { SIGILL, "ILL" }, | |
943 | { SIGABRT, "ABRT" }, | |
944 | { SIGFPE, "FPE" }, | |
945 | { SIGKILL, "KILL" }, | |
946 | { SIGSEGV, "SEGV" }, | |
947 | { SIGPIPE, "PIPE" }, | |
948 | { SIGALRM, "ALRM" }, | |
949 | { SIGTERM, "TERM" }, | |
950 | { SIGUSR1, "USR1" }, | |
951 | { SIGUSR2, "USR2" }, | |
952 | { SIGCHLD, "CHLD" }, | |
953 | { SIGCONT, "CONT" }, | |
954 | { SIGSTOP, "STOP" }, | |
955 | { SIGTSTP, "TSTP" }, | |
956 | { SIGTTIN, "TTIN" }, | |
957 | { SIGTTOU, "TTOU" }, | |
958 | #ifdef SIGTRAP | |
959 | { SIGTRAP, "TRAP" }, | |
960 | #endif | |
961 | #ifdef SIGIOT | |
962 | { SIGIOT, "IOT" }, | |
963 | #endif | |
964 | #ifdef SIGEMT | |
965 | { SIGEMT, "EMT" }, | |
966 | #endif | |
967 | #ifdef SIGBUS | |
968 | { SIGBUS, "BUS" }, | |
969 | #endif | |
970 | #ifdef SIGSTKFLT | |
971 | { SIGSTKFLT, "STKFLT" }, | |
972 | #endif | |
973 | #ifdef SIGCLD | |
974 | { SIGCLD, "CLD" }, | |
975 | #endif | |
976 | #ifdef SIGURG | |
977 | { SIGURG, "URG" }, | |
978 | #endif | |
979 | #ifdef SIGXCPU | |
980 | { SIGXCPU, "XCPU" }, | |
981 | #endif | |
982 | #ifdef SIGXFSZ | |
983 | { SIGXFSZ, "XFSZ" }, | |
984 | #endif | |
985 | #ifdef SIGVTALRM | |
986 | { SIGVTALRM, "VTALRM" }, | |
987 | #endif | |
988 | #ifdef SIGPROF | |
989 | { SIGPROF, "PROF" }, | |
990 | #endif | |
991 | #ifdef SIGWINCH | |
992 | { SIGWINCH, "WINCH" }, | |
993 | #endif | |
994 | #ifdef SIGIO | |
995 | { SIGIO, "IO" }, | |
996 | #endif | |
997 | #ifdef SIGPOLL | |
998 | { SIGPOLL, "POLL" }, | |
999 | #endif | |
1000 | #ifdef SIGINFO | |
1001 | { SIGINFO, "INFO" }, | |
1002 | #endif | |
1003 | #ifdef SIGLOST | |
1004 | { SIGLOST, "LOST" }, | |
1005 | #endif | |
1006 | #ifdef SIGPWR | |
1007 | { SIGPWR, "PWR" }, | |
1008 | #endif | |
1009 | #ifdef SIGUNUSED | |
1010 | { SIGUNUSED, "UNUSED" }, | |
1011 | #endif | |
1012 | #ifdef SIGSYS | |
1013 | { SIGSYS, "SYS" }, | |
1014 | #endif | |
1015 | }; | |
1016 | ||
1017 | static int sig_num(const char *sig) | |
1018 | { | |
50692dc1 | 1019 | int ret; |
f6e32eb0 CB |
1020 | unsigned int signum; |
1021 | ||
50692dc1 CB |
1022 | ret = lxc_safe_uint(sig, &signum); |
1023 | if (ret < 0) | |
1024 | return ret; | |
f6e32eb0 CB |
1025 | |
1026 | return signum; | |
1027 | } | |
1028 | ||
1029 | static int rt_sig_num(const char *signame) | |
1030 | { | |
b8e539f4 CB |
1031 | bool rtmax; |
1032 | int sig_n = 0; | |
f6e32eb0 | 1033 | |
b8e539f4 CB |
1034 | if (is_empty_string(signame)) |
1035 | return ret_errno(EINVAL); | |
1036 | ||
1037 | if (strncasecmp(signame, "max-", STRLITERALLEN("max-")) == 0) { | |
1038 | rtmax = true; | |
1039 | signame += STRLITERALLEN("max-"); | |
1040 | } else if (strncasecmp(signame, "min+", STRLITERALLEN("min+")) == 0) { | |
1041 | rtmax = false; | |
1042 | signame += STRLITERALLEN("min+"); | |
1043 | } else { | |
1044 | return ret_errno(EINVAL); | |
1045 | } | |
f6e32eb0 | 1046 | |
b8e539f4 | 1047 | if (is_empty_string(signame) || !isdigit(*signame)) |
2a169aec | 1048 | return ret_errno(EINVAL); |
f6e32eb0 CB |
1049 | |
1050 | sig_n = sig_num(signame); | |
e6b35fbf EV |
1051 | if (sig_n < 0 || sig_n > SIGRTMAX - SIGRTMIN) |
1052 | return ret_errno(EINVAL); | |
1053 | ||
b8e539f4 CB |
1054 | if (rtmax) |
1055 | sig_n = SIGRTMAX - sig_n; | |
1056 | else | |
1057 | sig_n = SIGRTMIN + sig_n; | |
1058 | ||
f6e32eb0 CB |
1059 | return sig_n; |
1060 | } | |
1061 | ||
1062 | int sig_parse(const char *signame) | |
1063 | { | |
b8e539f4 | 1064 | if (isdigit(*signame)) |
f6e32eb0 | 1065 | return sig_num(signame); |
29c98ddd | 1066 | |
b8e539f4 CB |
1067 | if (strncasecmp(signame, "sig", STRLITERALLEN("sig")) == 0) { |
1068 | signame += STRLITERALLEN("sig"); | |
1069 | if (strncasecmp(signame, "rt", STRLITERALLEN("rt")) == 0) | |
1070 | return rt_sig_num(signame + STRLITERALLEN("rt")); | |
1071 | ||
1072 | for (size_t n = 0; n < ARRAY_SIZE(signames); n++) | |
f6e32eb0 CB |
1073 | if (strcasecmp(signames[n].name, signame) == 0) |
1074 | return signames[n].num; | |
f6e32eb0 CB |
1075 | } |
1076 | ||
546d016e | 1077 | return ret_errno(EINVAL); |
f6e32eb0 | 1078 | } |