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Commit | Line | Data |
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c2cc9f0a | 1 | /* |
2 | * lxc: linux Container library | |
3 | * | |
4 | * (C) Copyright IBM Corp. 2007, 2008 | |
5 | * | |
6 | * Authors: | |
9afe19d6 | 7 | * Daniel Lezcano <daniel.lezcano at free.fr> |
c2cc9f0a | 8 | * |
9 | * This library is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Lesser General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2.1 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public | |
20 | * License along with this library; if not, write to the Free Software | |
250b1eec | 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
c2cc9f0a | 22 | */ |
12a50cc6 | 23 | #define _GNU_SOURCE |
c2cc9f0a | 24 | #include <stdio.h> |
25 | #include <stdlib.h> | |
26 | #include <string.h> | |
27 | #include <unistd.h> | |
28 | #include <errno.h> | |
63376d7d | 29 | #include <fcntl.h> |
a84b9932 AV |
30 | #include <ctype.h> |
31 | #include <signal.h> | |
63376d7d | 32 | #include <sys/stat.h> |
c2cc9f0a | 33 | #include <sys/types.h> |
34 | #include <sys/param.h> | |
35 | #include <sys/utsname.h> | |
36 | #include <arpa/inet.h> | |
37 | #include <netinet/in.h> | |
38 | #include <net/if.h> | |
39 | ||
b2718c72 | 40 | #include "parse.h" |
6ff05e18 | 41 | #include "config.h" |
525f0002 | 42 | #include "confile.h" |
26c39028 | 43 | #include "utils.h" |
f2363e38 ÇO |
44 | #include "log.h" |
45 | #include "conf.h" | |
72d0e1cb | 46 | #include "network.h" |
58e0f57d | 47 | #include "lxcseccomp.h" |
36eb9bde | 48 | |
6ff05e18 SG |
49 | #if HAVE_SYS_PERSONALITY_H |
50 | #include <sys/personality.h> | |
51 | #endif | |
52 | ||
36eb9bde | 53 | lxc_log_define(lxc_confile, lxc); |
576f946d | 54 | |
12a50cc6 DE |
55 | static int config_personality(const char *, const char *, struct lxc_conf *); |
56 | static int config_pts(const char *, const char *, struct lxc_conf *); | |
57 | static int config_tty(const char *, const char *, struct lxc_conf *); | |
58 | static int config_ttydir(const char *, const char *, struct lxc_conf *); | |
7e0e1d94 | 59 | static int config_kmsg(const char *, const char *, struct lxc_conf *); |
fe4de9a6 DE |
60 | static int config_lsm_aa_profile(const char *, const char *, struct lxc_conf *); |
61 | static int config_lsm_se_context(const char *, const char *, struct lxc_conf *); | |
12a50cc6 | 62 | static int config_cgroup(const char *, const char *, struct lxc_conf *); |
f6d3e3e4 | 63 | static int config_idmap(const char *, const char *, struct lxc_conf *); |
4a85ce2a SH |
64 | static int config_loglevel(const char *, const char *, struct lxc_conf *); |
65 | static int config_logfile(const char *, const char *, struct lxc_conf *); | |
12a50cc6 DE |
66 | static int config_mount(const char *, const char *, struct lxc_conf *); |
67 | static int config_rootfs(const char *, const char *, struct lxc_conf *); | |
68 | static int config_rootfs_mount(const char *, const char *, struct lxc_conf *); | |
a17b1e65 | 69 | static int config_rootfs_options(const char *, const char *, struct lxc_conf *); |
12a50cc6 DE |
70 | static int config_pivotdir(const char *, const char *, struct lxc_conf *); |
71 | static int config_utsname(const char *, const char *, struct lxc_conf *); | |
72 | static int config_hook(const char *, const char *, struct lxc_conf *lxc_conf); | |
73 | static int config_network_type(const char *, const char *, struct lxc_conf *); | |
74 | static int config_network_flags(const char *, const char *, struct lxc_conf *); | |
75 | static int config_network_link(const char *, const char *, struct lxc_conf *); | |
76 | static int config_network_name(const char *, const char *, struct lxc_conf *); | |
77 | static int config_network_veth_pair(const char *, const char *, struct lxc_conf *); | |
78 | static int config_network_macvlan_mode(const char *, const char *, struct lxc_conf *); | |
79 | static int config_network_hwaddr(const char *, const char *, struct lxc_conf *); | |
80 | static int config_network_vlan_id(const char *, const char *, struct lxc_conf *); | |
81 | static int config_network_mtu(const char *, const char *, struct lxc_conf *); | |
82 | static int config_network_ipv4(const char *, const char *, struct lxc_conf *); | |
83 | static int config_network_ipv4_gateway(const char *, const char *, struct lxc_conf *); | |
8fc8295a DE |
84 | static int config_network_script_up(const char *, const char *, struct lxc_conf *); |
85 | static int config_network_script_down(const char *, const char *, struct lxc_conf *); | |
12a50cc6 DE |
86 | static int config_network_ipv6(const char *, const char *, struct lxc_conf *); |
87 | static int config_network_ipv6_gateway(const char *, const char *, struct lxc_conf *); | |
88 | static int config_cap_drop(const char *, const char *, struct lxc_conf *); | |
1fb86a7c | 89 | static int config_cap_keep(const char *, const char *, struct lxc_conf *); |
12a50cc6 DE |
90 | static int config_console(const char *, const char *, struct lxc_conf *); |
91 | static int config_seccomp(const char *, const char *, struct lxc_conf *); | |
92 | static int config_includefile(const char *, const char *, struct lxc_conf *); | |
93 | static int config_network_nic(const char *, const char *, struct lxc_conf *); | |
94 | static int config_autodev(const char *, const char *, struct lxc_conf *); | |
f0f1d8c0 | 95 | static int config_haltsignal(const char *, const char *, struct lxc_conf *); |
a84b9932 | 96 | static int config_stopsignal(const char *, const char *, struct lxc_conf *); |
ee1e7aa0 SG |
97 | static int config_start(const char *, const char *, struct lxc_conf *); |
98 | static int config_group(const char *, const char *, struct lxc_conf *); | |
c2cc9f0a | 99 | |
72d0e1cb | 100 | static struct lxc_config_t config[] = { |
576f946d | 101 | |
cccc74b5 | 102 | { "lxc.arch", config_personality }, |
e892973e DL |
103 | { "lxc.pts", config_pts }, |
104 | { "lxc.tty", config_tty }, | |
7c6ef2a2 | 105 | { "lxc.devttydir", config_ttydir }, |
7e0e1d94 | 106 | { "lxc.kmsg", config_kmsg }, |
fe4de9a6 DE |
107 | { "lxc.aa_profile", config_lsm_aa_profile }, |
108 | { "lxc.se_context", config_lsm_se_context }, | |
e892973e | 109 | { "lxc.cgroup", config_cgroup }, |
f6d3e3e4 | 110 | { "lxc.id_map", config_idmap }, |
4a85ce2a SH |
111 | { "lxc.loglevel", config_loglevel }, |
112 | { "lxc.logfile", config_logfile }, | |
e892973e | 113 | { "lxc.mount", config_mount }, |
23b7ea69 | 114 | { "lxc.rootfs.mount", config_rootfs_mount }, |
a17b1e65 | 115 | { "lxc.rootfs.options", config_rootfs_options }, |
e892973e | 116 | { "lxc.rootfs", config_rootfs }, |
bf601689 | 117 | { "lxc.pivotdir", config_pivotdir }, |
e892973e | 118 | { "lxc.utsname", config_utsname }, |
26ddeedd | 119 | { "lxc.hook.pre-start", config_hook }, |
12a50cc6 | 120 | { "lxc.hook.pre-mount", config_hook }, |
26ddeedd | 121 | { "lxc.hook.mount", config_hook }, |
f7bee6c6 | 122 | { "lxc.hook.autodev", config_hook }, |
26ddeedd SH |
123 | { "lxc.hook.start", config_hook }, |
124 | { "lxc.hook.post-stop", config_hook }, | |
148e91f5 | 125 | { "lxc.hook.clone", config_hook }, |
e892973e DL |
126 | { "lxc.network.type", config_network_type }, |
127 | { "lxc.network.flags", config_network_flags }, | |
128 | { "lxc.network.link", config_network_link }, | |
129 | { "lxc.network.name", config_network_name }, | |
130 | { "lxc.network.macvlan.mode", config_network_macvlan_mode }, | |
131 | { "lxc.network.veth.pair", config_network_veth_pair }, | |
8fc8295a DE |
132 | { "lxc.network.script.up", config_network_script_up }, |
133 | { "lxc.network.script.down", config_network_script_down }, | |
e892973e DL |
134 | { "lxc.network.hwaddr", config_network_hwaddr }, |
135 | { "lxc.network.mtu", config_network_mtu }, | |
136 | { "lxc.network.vlan.id", config_network_vlan_id }, | |
f8fee0e2 | 137 | { "lxc.network.ipv4.gateway", config_network_ipv4_gateway }, |
e892973e | 138 | { "lxc.network.ipv4", config_network_ipv4 }, |
f8fee0e2 | 139 | { "lxc.network.ipv6.gateway", config_network_ipv6_gateway }, |
e892973e | 140 | { "lxc.network.ipv6", config_network_ipv6 }, |
72d0e1cb SG |
141 | /* config_network_nic must come after all other 'lxc.network.*' entries */ |
142 | { "lxc.network.", config_network_nic }, | |
81810dd1 | 143 | { "lxc.cap.drop", config_cap_drop }, |
1fb86a7c | 144 | { "lxc.cap.keep", config_cap_keep }, |
63376d7d | 145 | { "lxc.console", config_console }, |
8f2c3a70 | 146 | { "lxc.seccomp", config_seccomp }, |
09ad6246 | 147 | { "lxc.include", config_includefile }, |
c6883f38 | 148 | { "lxc.autodev", config_autodev }, |
f0f1d8c0 | 149 | { "lxc.haltsignal", config_haltsignal }, |
a84b9932 | 150 | { "lxc.stopsignal", config_stopsignal }, |
ee1e7aa0 SG |
151 | { "lxc.start.auto", config_start }, |
152 | { "lxc.start.delay", config_start }, | |
153 | { "lxc.start.order", config_start }, | |
154 | { "lxc.group", config_group }, | |
a84b9932 AV |
155 | }; |
156 | ||
157 | struct signame { | |
158 | int num; | |
74a3920a | 159 | const char *name; |
a84b9932 AV |
160 | }; |
161 | ||
74a3920a | 162 | static const struct signame signames[] = { |
a84b9932 AV |
163 | { SIGHUP, "HUP" }, |
164 | { SIGINT, "INT" }, | |
165 | { SIGQUIT, "QUIT" }, | |
166 | { SIGILL, "ILL" }, | |
167 | { SIGABRT, "ABRT" }, | |
168 | { SIGFPE, "FPE" }, | |
169 | { SIGKILL, "KILL" }, | |
170 | { SIGSEGV, "SEGV" }, | |
171 | { SIGPIPE, "PIPE" }, | |
172 | { SIGALRM, "ALRM" }, | |
173 | { SIGTERM, "TERM" }, | |
174 | { SIGUSR1, "USR1" }, | |
175 | { SIGUSR2, "USR2" }, | |
176 | { SIGCHLD, "CHLD" }, | |
177 | { SIGCONT, "CONT" }, | |
178 | { SIGSTOP, "STOP" }, | |
179 | { SIGTSTP, "TSTP" }, | |
180 | { SIGTTIN, "TTIN" }, | |
181 | { SIGTTOU, "TTOU" }, | |
c2cc9f0a | 182 | }; |
183 | ||
72d0e1cb | 184 | static const size_t config_size = sizeof(config)/sizeof(struct lxc_config_t); |
c2cc9f0a | 185 | |
72d0e1cb | 186 | extern struct lxc_config_t *lxc_getconfig(const char *key) |
c2cc9f0a | 187 | { |
188 | int i; | |
189 | ||
190 | for (i = 0; i < config_size; i++) | |
a871ff6b | 191 | if (!strncmp(config[i].name, key, |
c2cc9f0a | 192 | strlen(config[i].name))) |
193 | return &config[i]; | |
194 | return NULL; | |
195 | } | |
196 | ||
72d0e1cb SG |
197 | #define strprint(str, inlen, ...) \ |
198 | do { \ | |
199 | len = snprintf(str, inlen, ##__VA_ARGS__); \ | |
200 | if (len < 0) { SYSERROR("snprintf"); return -1; }; \ | |
201 | fulllen += len; \ | |
202 | if (inlen > 0) { \ | |
203 | if (str) str += len; \ | |
204 | inlen -= len; \ | |
205 | if (inlen < 0) inlen = 0; \ | |
206 | } \ | |
207 | } while (0); | |
208 | ||
209 | int lxc_listconfigs(char *retv, int inlen) | |
210 | { | |
211 | int i, fulllen = 0, len; | |
212 | ||
213 | if (!retv) | |
214 | inlen = 0; | |
215 | else | |
216 | memset(retv, 0, inlen); | |
217 | for (i = 0; i < config_size; i++) { | |
218 | char *s = config[i].name; | |
219 | if (s[strlen(s)-1] == '.') | |
220 | continue; | |
221 | strprint(retv, inlen, "%s\n", s); | |
222 | } | |
223 | return fulllen; | |
224 | } | |
225 | ||
6d03d92a DE |
226 | static int config_string_item(char **conf_item, const char *value) |
227 | { | |
228 | char *new_value; | |
229 | ||
d6eca240 SG |
230 | if (!value || strlen(value) == 0) { |
231 | if (*conf_item) | |
232 | free(*conf_item); | |
233 | *conf_item = NULL; | |
6d03d92a | 234 | return 0; |
d6eca240 | 235 | } |
6d03d92a DE |
236 | |
237 | new_value = strdup(value); | |
238 | if (!new_value) { | |
239 | SYSERROR("failed to strdup '%s': %m", value); | |
240 | return -1; | |
241 | } | |
242 | ||
243 | if (*conf_item) | |
244 | free(*conf_item); | |
245 | *conf_item = new_value; | |
246 | return 0; | |
247 | } | |
248 | ||
249 | static int config_string_item_max(char **conf_item, const char *value, | |
250 | size_t max) | |
251 | { | |
252 | if (strlen(value) >= max) { | |
a5a82508 | 253 | ERROR("%s is too long (>= %lu)", value, (unsigned long)max); |
6d03d92a DE |
254 | return -1; |
255 | } | |
256 | ||
257 | return config_string_item(conf_item, value); | |
258 | } | |
259 | ||
260 | static int config_path_item(char **conf_item, const char *value) | |
261 | { | |
262 | return config_string_item_max(conf_item, value, PATH_MAX); | |
263 | } | |
264 | ||
72d0e1cb SG |
265 | /* |
266 | * config entry is something like "lxc.network.0.ipv4" | |
267 | * the key 'lxc.network.' was found. So we make sure next | |
268 | * comes an integer, find the right callback (by rewriting | |
269 | * the key), and call it. | |
270 | */ | |
12a50cc6 | 271 | static int config_network_nic(const char *key, const char *value, |
72d0e1cb SG |
272 | struct lxc_conf *lxc_conf) |
273 | { | |
274 | char *copy = strdup(key), *p; | |
275 | int ret = -1; | |
276 | struct lxc_config_t *config; | |
277 | ||
278 | if (!copy) { | |
279 | SYSERROR("failed to allocate memory"); | |
280 | return -1; | |
281 | } | |
282 | /* | |
283 | * ok we know that to get here we've got "lxc.network." | |
284 | * and it isn't any of the other network entries. So | |
285 | * after the second . should come an integer (# of defined | |
286 | * nic) followed by a valid entry. | |
287 | */ | |
288 | if (*(key+12) < '0' || *(key+12) > '9') | |
289 | goto out; | |
290 | p = index(key+12, '.'); | |
291 | if (!p) | |
292 | goto out; | |
293 | strcpy(copy+12, p+1); | |
294 | config = lxc_getconfig(copy); | |
295 | if (!config) { | |
296 | ERROR("unknown key %s", key); | |
297 | goto out; | |
298 | } | |
299 | ret = config->cb(key, value, lxc_conf); | |
300 | ||
301 | out: | |
302 | free(copy); | |
303 | return ret; | |
304 | } | |
305 | ||
261658e8 BP |
306 | static int macvlan_mode(int *valuep, const char *value); |
307 | ||
12a50cc6 | 308 | static int config_network_type(const char *key, const char *value, |
e892973e | 309 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 310 | { |
5f4535a3 | 311 | struct lxc_list *network = &lxc_conf->network; |
c2cc9f0a | 312 | struct lxc_netdev *netdev; |
313 | struct lxc_list *list; | |
c2cc9f0a | 314 | |
7d0eb87e SH |
315 | if (!value || strlen(value) == 0) |
316 | return lxc_clear_config_network(lxc_conf); | |
317 | ||
c2cc9f0a | 318 | netdev = malloc(sizeof(*netdev)); |
319 | if (!netdev) { | |
36eb9bde | 320 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 321 | return -1; |
322 | } | |
323 | ||
82d5ae15 | 324 | memset(netdev, 0, sizeof(*netdev)); |
c2cc9f0a | 325 | lxc_list_init(&netdev->ipv4); |
326 | lxc_list_init(&netdev->ipv6); | |
c2cc9f0a | 327 | |
328 | list = malloc(sizeof(*list)); | |
329 | if (!list) { | |
36eb9bde | 330 | SYSERROR("failed to allocate memory"); |
022de5f3 | 331 | free(netdev); |
c2cc9f0a | 332 | return -1; |
333 | } | |
334 | ||
335 | lxc_list_init(list); | |
5f4535a3 | 336 | list->elem = netdev; |
c2cc9f0a | 337 | |
bac89583 | 338 | lxc_list_add_tail(network, list); |
a871ff6b | 339 | |
c2cc9f0a | 340 | if (!strcmp(value, "veth")) |
24654103 | 341 | netdev->type = LXC_NET_VETH; |
261658e8 | 342 | else if (!strcmp(value, "macvlan")) { |
24654103 | 343 | netdev->type = LXC_NET_MACVLAN; |
261658e8 BP |
344 | macvlan_mode(&netdev->priv.macvlan_attr.mode, "private"); |
345 | } | |
26c39028 | 346 | else if (!strcmp(value, "vlan")) |
24654103 | 347 | netdev->type = LXC_NET_VLAN; |
c2cc9f0a | 348 | else if (!strcmp(value, "phys")) |
24654103 | 349 | netdev->type = LXC_NET_PHYS; |
5f58350a | 350 | else if (!strcmp(value, "empty")) |
24654103 | 351 | netdev->type = LXC_NET_EMPTY; |
26b797f3 SH |
352 | else if (!strcmp(value, "none")) |
353 | netdev->type = LXC_NET_NONE; | |
c2cc9f0a | 354 | else { |
36eb9bde | 355 | ERROR("invalid network type %s", value); |
c2cc9f0a | 356 | return -1; |
357 | } | |
358 | return 0; | |
359 | } | |
360 | ||
a059591e DL |
361 | static int config_ip_prefix(struct in_addr *addr) |
362 | { | |
363 | if (IN_CLASSA(addr->s_addr)) | |
364 | return 32 - IN_CLASSA_NSHIFT; | |
365 | if (IN_CLASSB(addr->s_addr)) | |
366 | return 32 - IN_CLASSB_NSHIFT; | |
367 | if (IN_CLASSC(addr->s_addr)) | |
368 | return 32 - IN_CLASSC_NSHIFT; | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
72d0e1cb SG |
373 | /* |
374 | * if you have p="lxc.network.0.link", pass it p+12 | |
375 | * to get back '0' (the index of the nic) | |
376 | */ | |
377 | static int get_network_netdev_idx(const char *key) | |
378 | { | |
379 | int ret, idx; | |
380 | ||
381 | if (*key < '0' || *key > '9') | |
382 | return -1; | |
383 | ret = sscanf(key, "%d", &idx); | |
384 | if (ret != 1) | |
385 | return -1; | |
386 | return idx; | |
387 | } | |
388 | ||
389 | /* | |
390 | * if you have p="lxc.network.0", pass this p+12 and it will return | |
391 | * the netdev of the first configured nic | |
392 | */ | |
393 | static struct lxc_netdev *get_netdev_from_key(const char *key, | |
394 | struct lxc_list *network) | |
395 | { | |
396 | int i = 0, idx = get_network_netdev_idx(key); | |
397 | struct lxc_netdev *netdev = NULL; | |
398 | struct lxc_list *it; | |
399 | if (idx == -1) | |
400 | return NULL; | |
401 | lxc_list_for_each(it, network) { | |
402 | if (idx == i++) { | |
403 | netdev = it->elem; | |
404 | break; | |
405 | } | |
406 | } | |
407 | return netdev; | |
408 | } | |
409 | ||
12a50cc6 DE |
410 | extern int lxc_list_nicconfigs(struct lxc_conf *c, const char *key, |
411 | char *retv, int inlen) | |
72d0e1cb SG |
412 | { |
413 | struct lxc_netdev *netdev; | |
414 | int fulllen = 0, len; | |
415 | ||
416 | netdev = get_netdev_from_key(key+12, &c->network); | |
417 | if (!netdev) | |
418 | return -1; | |
419 | ||
420 | if (!retv) | |
421 | inlen = 0; | |
422 | else | |
423 | memset(retv, 0, inlen); | |
424 | ||
425 | strprint(retv, inlen, "script.up\n"); | |
8fc8295a | 426 | strprint(retv, inlen, "script.down\n"); |
72d0e1cb SG |
427 | if (netdev->type != LXC_NET_EMPTY) { |
428 | strprint(retv, inlen, "flags\n"); | |
429 | strprint(retv, inlen, "link\n"); | |
430 | strprint(retv, inlen, "name\n"); | |
431 | strprint(retv, inlen, "hwaddr\n"); | |
432 | strprint(retv, inlen, "mtu\n"); | |
433 | strprint(retv, inlen, "ipv6\n"); | |
434 | strprint(retv, inlen, "ipv6_gateway\n"); | |
435 | strprint(retv, inlen, "ipv4\n"); | |
436 | strprint(retv, inlen, "ipv4_gateway\n"); | |
437 | } | |
438 | switch(netdev->type) { | |
439 | case LXC_NET_VETH: | |
440 | strprint(retv, inlen, "veth.pair\n"); | |
441 | break; | |
442 | case LXC_NET_MACVLAN: | |
443 | strprint(retv, inlen, "macvlan.mode\n"); | |
444 | break; | |
445 | case LXC_NET_VLAN: | |
446 | strprint(retv, inlen, "vlan.id\n"); | |
447 | break; | |
448 | case LXC_NET_PHYS: | |
449 | break; | |
450 | } | |
451 | return fulllen; | |
452 | } | |
453 | ||
16950ecb DL |
454 | static struct lxc_netdev *network_netdev(const char *key, const char *value, |
455 | struct lxc_list *network) | |
c2cc9f0a | 456 | { |
72d0e1cb | 457 | struct lxc_netdev *netdev = NULL; |
c2cc9f0a | 458 | |
5f4535a3 | 459 | if (lxc_list_empty(network)) { |
16950ecb DL |
460 | ERROR("network is not created for '%s' = '%s' option", |
461 | key, value); | |
33c945e0 | 462 | return NULL; |
c2cc9f0a | 463 | } |
464 | ||
72d0e1cb SG |
465 | if (get_network_netdev_idx(key+12) == -1) |
466 | netdev = lxc_list_last_elem(network); | |
467 | else | |
468 | netdev = get_netdev_from_key(key+12, network); | |
469 | ||
5f4535a3 | 470 | if (!netdev) { |
16950ecb DL |
471 | ERROR("no network device defined for '%s' = '%s' option", |
472 | key, value); | |
33c945e0 | 473 | return NULL; |
c2cc9f0a | 474 | } |
475 | ||
33c945e0 | 476 | return netdev; |
c2cc9f0a | 477 | } |
478 | ||
12a50cc6 | 479 | static int network_ifname(char **valuep, const char *value) |
c2cc9f0a | 480 | { |
c9bb9a85 | 481 | return config_string_item_max(valuep, value, IFNAMSIZ); |
c2cc9f0a | 482 | } |
483 | ||
e892973e DL |
484 | #ifndef MACVLAN_MODE_PRIVATE |
485 | # define MACVLAN_MODE_PRIVATE 1 | |
486 | #endif | |
487 | ||
488 | #ifndef MACVLAN_MODE_VEPA | |
489 | # define MACVLAN_MODE_VEPA 2 | |
490 | #endif | |
491 | ||
492 | #ifndef MACVLAN_MODE_BRIDGE | |
493 | # define MACVLAN_MODE_BRIDGE 4 | |
494 | #endif | |
495 | ||
12a50cc6 | 496 | static int macvlan_mode(int *valuep, const char *value) |
e892973e DL |
497 | { |
498 | struct mc_mode { | |
499 | char *name; | |
500 | int mode; | |
501 | } m[] = { | |
502 | { "private", MACVLAN_MODE_PRIVATE }, | |
503 | { "vepa", MACVLAN_MODE_VEPA }, | |
504 | { "bridge", MACVLAN_MODE_BRIDGE }, | |
505 | }; | |
506 | ||
507 | int i; | |
508 | ||
509 | for (i = 0; i < sizeof(m)/sizeof(m[0]); i++) { | |
510 | if (strcmp(m[i].name, value)) | |
511 | continue; | |
512 | ||
513 | *valuep = m[i].mode; | |
514 | return 0; | |
515 | } | |
516 | ||
517 | return -1; | |
518 | } | |
519 | ||
508c263e SH |
520 | static int rand_complete_hwaddr(char *hwaddr) |
521 | { | |
522 | const char hex[] = "0123456789abcdef"; | |
523 | char *curs = hwaddr; | |
524 | ||
525 | #ifndef HAVE_RAND_R | |
526 | randseed(true); | |
527 | #else | |
528 | unsigned int seed=randseed(false); | |
529 | #endif | |
530 | while (*curs != '\0') | |
531 | { | |
532 | if ( *curs == 'x' || *curs == 'X' ) { | |
533 | if (curs - hwaddr == 1) { | |
534 | //ensure address is unicast | |
535 | #ifdef HAVE_RAND_R | |
536 | *curs = hex[rand_r(&seed) & 0x0E]; | |
537 | } else { | |
538 | *curs = hex[rand_r(&seed) & 0x0F]; | |
539 | #else | |
540 | *curs = hex[rand() & 0x0E]; | |
541 | } else { | |
542 | *curs = hex[rand() & 0x0F]; | |
543 | #endif | |
544 | } | |
545 | } | |
546 | curs++; | |
547 | } | |
548 | return 0; | |
549 | } | |
550 | ||
12a50cc6 | 551 | static int config_network_flags(const char *key, const char *value, |
33c945e0 | 552 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 553 | { |
c2cc9f0a | 554 | struct lxc_netdev *netdev; |
555 | ||
16950ecb | 556 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 557 | if (!netdev) |
c2cc9f0a | 558 | return -1; |
c2cc9f0a | 559 | |
33c945e0 | 560 | netdev->flags |= IFF_UP; |
c2cc9f0a | 561 | |
33c945e0 MT |
562 | return 0; |
563 | } | |
564 | ||
12a50cc6 | 565 | static int config_network_link(const char *key, const char *value, |
33c945e0 MT |
566 | struct lxc_conf *lxc_conf) |
567 | { | |
568 | struct lxc_netdev *netdev; | |
569 | ||
16950ecb | 570 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 571 | if (!netdev) |
c2cc9f0a | 572 | return -1; |
c2cc9f0a | 573 | |
33c945e0 | 574 | return network_ifname(&netdev->link, value); |
c2cc9f0a | 575 | } |
576 | ||
12a50cc6 | 577 | static int config_network_name(const char *key, const char *value, |
33c945e0 | 578 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 579 | { |
c2cc9f0a | 580 | struct lxc_netdev *netdev; |
581 | ||
16950ecb | 582 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 583 | if (!netdev) |
c2cc9f0a | 584 | return -1; |
c2cc9f0a | 585 | |
33c945e0 MT |
586 | return network_ifname(&netdev->name, value); |
587 | } | |
588 | ||
12a50cc6 | 589 | static int config_network_veth_pair(const char *key, const char *value, |
e892973e DL |
590 | struct lxc_conf *lxc_conf) |
591 | { | |
592 | struct lxc_netdev *netdev; | |
593 | ||
594 | netdev = network_netdev(key, value, &lxc_conf->network); | |
595 | if (!netdev) | |
596 | return -1; | |
597 | ||
598 | return network_ifname(&netdev->priv.veth_attr.pair, value); | |
599 | } | |
600 | ||
12a50cc6 | 601 | static int config_network_macvlan_mode(const char *key, const char *value, |
e892973e | 602 | struct lxc_conf *lxc_conf) |
8634bc19 MT |
603 | { |
604 | struct lxc_netdev *netdev; | |
605 | ||
606 | netdev = network_netdev(key, value, &lxc_conf->network); | |
607 | if (!netdev) | |
608 | return -1; | |
609 | ||
e892973e | 610 | return macvlan_mode(&netdev->priv.macvlan_attr.mode, value); |
8634bc19 MT |
611 | } |
612 | ||
12a50cc6 | 613 | static int config_network_hwaddr(const char *key, const char *value, |
33c945e0 MT |
614 | struct lxc_conf *lxc_conf) |
615 | { | |
616 | struct lxc_netdev *netdev; | |
617 | ||
508c263e SH |
618 | char *new_value = strdup(value); |
619 | if (!new_value) { | |
620 | SYSERROR("failed to strdup '%s': %m", value); | |
c2cc9f0a | 621 | return -1; |
508c263e SH |
622 | } |
623 | rand_complete_hwaddr(new_value); | |
c2cc9f0a | 624 | |
508c263e SH |
625 | netdev = network_netdev(key, new_value, &lxc_conf->network); |
626 | if (!netdev) { | |
627 | free(new_value); | |
628 | return -1; | |
629 | }; | |
630 | ||
631 | if (!new_value || strlen(new_value) == 0) { | |
632 | free(new_value); | |
633 | netdev->hwaddr = NULL; | |
634 | return 0; | |
635 | } | |
636 | ||
637 | netdev->hwaddr = new_value; | |
638 | return 0; | |
c2cc9f0a | 639 | } |
640 | ||
12a50cc6 | 641 | static int config_network_vlan_id(const char *key, const char *value, |
26c39028 JHS |
642 | struct lxc_conf *lxc_conf) |
643 | { | |
644 | struct lxc_netdev *netdev; | |
645 | ||
646 | netdev = network_netdev(key, value, &lxc_conf->network); | |
647 | if (!netdev) | |
648 | return -1; | |
649 | ||
f6cc1de1 | 650 | if (get_u16(&netdev->priv.vlan_attr.vid, value, 0)) |
26c39028 JHS |
651 | return -1; |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
12a50cc6 | 656 | static int config_network_mtu(const char *key, const char *value, |
33c945e0 | 657 | struct lxc_conf *lxc_conf) |
442cbbe6 | 658 | { |
442cbbe6 TR |
659 | struct lxc_netdev *netdev; |
660 | ||
16950ecb | 661 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 662 | if (!netdev) |
442cbbe6 | 663 | return -1; |
442cbbe6 | 664 | |
6d03d92a | 665 | return config_string_item(&netdev->mtu, value); |
442cbbe6 TR |
666 | } |
667 | ||
12a50cc6 | 668 | static int config_network_ipv4(const char *key, const char *value, |
33c945e0 | 669 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 670 | { |
c2cc9f0a | 671 | struct lxc_netdev *netdev; |
33c945e0 | 672 | struct lxc_inetdev *inetdev; |
c2cc9f0a | 673 | struct lxc_list *list; |
674 | char *cursor, *slash, *addr = NULL, *bcast = NULL, *prefix = NULL; | |
675 | ||
16950ecb | 676 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 677 | if (!netdev) |
c2cc9f0a | 678 | return -1; |
c2cc9f0a | 679 | |
680 | inetdev = malloc(sizeof(*inetdev)); | |
681 | if (!inetdev) { | |
36eb9bde | 682 | SYSERROR("failed to allocate ipv4 address"); |
c2cc9f0a | 683 | return -1; |
684 | } | |
685 | memset(inetdev, 0, sizeof(*inetdev)); | |
686 | ||
687 | list = malloc(sizeof(*list)); | |
688 | if (!list) { | |
36eb9bde | 689 | SYSERROR("failed to allocate memory"); |
53719062 | 690 | free(inetdev); |
c2cc9f0a | 691 | return -1; |
692 | } | |
693 | ||
694 | lxc_list_init(list); | |
695 | list->elem = inetdev; | |
696 | ||
956edc54 SG |
697 | addr = strdup(value); |
698 | if (!addr) { | |
699 | ERROR("no address specified"); | |
53719062 SH |
700 | free(inetdev); |
701 | free(list); | |
956edc54 SG |
702 | return -1; |
703 | } | |
c2cc9f0a | 704 | |
705 | cursor = strstr(addr, " "); | |
706 | if (cursor) { | |
707 | *cursor = '\0'; | |
708 | bcast = cursor + 1; | |
709 | } | |
710 | ||
711 | slash = strstr(addr, "/"); | |
712 | if (slash) { | |
713 | *slash = '\0'; | |
714 | prefix = slash + 1; | |
715 | } | |
716 | ||
c2cc9f0a | 717 | if (!inet_pton(AF_INET, addr, &inetdev->addr)) { |
36eb9bde | 718 | SYSERROR("invalid ipv4 address: %s", value); |
53719062 | 719 | free(inetdev); |
956edc54 | 720 | free(addr); |
53719062 | 721 | free(list); |
c2cc9f0a | 722 | return -1; |
723 | } | |
724 | ||
0093bb8c DL |
725 | if (bcast && !inet_pton(AF_INET, bcast, &inetdev->bcast)) { |
726 | SYSERROR("invalid ipv4 broadcast address: %s", value); | |
53719062 SH |
727 | free(inetdev); |
728 | free(list); | |
956edc54 | 729 | free(addr); |
0093bb8c DL |
730 | return -1; |
731 | } | |
c2cc9f0a | 732 | |
a059591e DL |
733 | /* no prefix specified, determine it from the network class */ |
734 | inetdev->prefix = prefix ? atoi(prefix) : | |
735 | config_ip_prefix(&inetdev->addr); | |
736 | ||
b3df193c | 737 | /* if no broadcast address, let compute one from the |
0093bb8c DL |
738 | * prefix and address |
739 | */ | |
740 | if (!bcast) { | |
1b7d4743 DL |
741 | inetdev->bcast.s_addr = inetdev->addr.s_addr; |
742 | inetdev->bcast.s_addr |= | |
743 | htonl(INADDR_BROADCAST >> inetdev->prefix); | |
0093bb8c | 744 | } |
c2cc9f0a | 745 | |
8538f388 | 746 | lxc_list_add_tail(&netdev->ipv4, list); |
c2cc9f0a | 747 | |
956edc54 | 748 | free(addr); |
c2cc9f0a | 749 | return 0; |
750 | } | |
751 | ||
12a50cc6 | 752 | static int config_network_ipv4_gateway(const char *key, const char *value, |
f8fee0e2 MK |
753 | struct lxc_conf *lxc_conf) |
754 | { | |
755 | struct lxc_netdev *netdev; | |
756 | struct in_addr *gw; | |
757 | ||
758 | netdev = network_netdev(key, value, &lxc_conf->network); | |
759 | if (!netdev) | |
760 | return -1; | |
761 | ||
762 | gw = malloc(sizeof(*gw)); | |
763 | if (!gw) { | |
764 | SYSERROR("failed to allocate ipv4 gateway address"); | |
765 | return -1; | |
766 | } | |
767 | ||
768 | if (!value) { | |
769 | ERROR("no ipv4 gateway address specified"); | |
53719062 | 770 | free(gw); |
f8fee0e2 MK |
771 | return -1; |
772 | } | |
773 | ||
19a26f82 | 774 | if (!strcmp(value, "auto")) { |
c4e9c69f | 775 | free(gw); |
19a26f82 MK |
776 | netdev->ipv4_gateway = NULL; |
777 | netdev->ipv4_gateway_auto = true; | |
778 | } else { | |
779 | if (!inet_pton(AF_INET, value, gw)) { | |
780 | SYSERROR("invalid ipv4 gateway address: %s", value); | |
53719062 | 781 | free(gw); |
19a26f82 MK |
782 | return -1; |
783 | } | |
784 | ||
785 | netdev->ipv4_gateway = gw; | |
786 | netdev->ipv4_gateway_auto = false; | |
f8fee0e2 MK |
787 | } |
788 | ||
f8fee0e2 MK |
789 | return 0; |
790 | } | |
791 | ||
12a50cc6 | 792 | static int config_network_ipv6(const char *key, const char *value, |
e892973e | 793 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 794 | { |
c2cc9f0a | 795 | struct lxc_netdev *netdev; |
796 | struct lxc_inet6dev *inet6dev; | |
797 | struct lxc_list *list; | |
12a50cc6 | 798 | char *slash,*valdup; |
c2cc9f0a | 799 | char *netmask; |
800 | ||
16950ecb | 801 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 802 | if (!netdev) |
c2cc9f0a | 803 | return -1; |
c2cc9f0a | 804 | |
805 | inet6dev = malloc(sizeof(*inet6dev)); | |
806 | if (!inet6dev) { | |
36eb9bde | 807 | SYSERROR("failed to allocate ipv6 address"); |
c2cc9f0a | 808 | return -1; |
809 | } | |
810 | memset(inet6dev, 0, sizeof(*inet6dev)); | |
811 | ||
812 | list = malloc(sizeof(*list)); | |
813 | if (!list) { | |
36eb9bde | 814 | SYSERROR("failed to allocate memory"); |
28027320 | 815 | free(inet6dev); |
c2cc9f0a | 816 | return -1; |
817 | } | |
818 | ||
819 | lxc_list_init(list); | |
820 | list->elem = inet6dev; | |
821 | ||
956edc54 SG |
822 | valdup = strdup(value); |
823 | if (!valdup) { | |
824 | ERROR("no address specified"); | |
28027320 SH |
825 | free(list); |
826 | free(inet6dev); | |
956edc54 SG |
827 | return -1; |
828 | } | |
829 | ||
a059591e | 830 | inet6dev->prefix = 64; |
12a50cc6 | 831 | slash = strstr(valdup, "/"); |
c2cc9f0a | 832 | if (slash) { |
833 | *slash = '\0'; | |
834 | netmask = slash + 1; | |
835 | inet6dev->prefix = atoi(netmask); | |
836 | } | |
837 | ||
5acccf95 SH |
838 | if (!inet_pton(AF_INET6, valdup, &inet6dev->addr)) { |
839 | SYSERROR("invalid ipv6 address: %s", valdup); | |
28027320 SH |
840 | free(list); |
841 | free(inet6dev); | |
956edc54 | 842 | free(valdup); |
c2cc9f0a | 843 | return -1; |
844 | } | |
845 | ||
8538f388 | 846 | lxc_list_add_tail(&netdev->ipv6, list); |
c2cc9f0a | 847 | |
956edc54 | 848 | free(valdup); |
c2cc9f0a | 849 | return 0; |
850 | } | |
851 | ||
12a50cc6 | 852 | static int config_network_ipv6_gateway(const char *key, const char *value, |
f8fee0e2 MK |
853 | struct lxc_conf *lxc_conf) |
854 | { | |
855 | struct lxc_netdev *netdev; | |
f8fee0e2 MK |
856 | |
857 | netdev = network_netdev(key, value, &lxc_conf->network); | |
858 | if (!netdev) | |
859 | return -1; | |
860 | ||
f8fee0e2 MK |
861 | if (!value) { |
862 | ERROR("no ipv6 gateway address specified"); | |
863 | return -1; | |
864 | } | |
865 | ||
19a26f82 MK |
866 | if (!strcmp(value, "auto")) { |
867 | netdev->ipv6_gateway = NULL; | |
868 | netdev->ipv6_gateway_auto = true; | |
869 | } else { | |
8fb86a37 SH |
870 | struct in6_addr *gw; |
871 | ||
bec695f3 DE |
872 | gw = malloc(sizeof(*gw)); |
873 | if (!gw) { | |
874 | SYSERROR("failed to allocate ipv6 gateway address"); | |
875 | return -1; | |
876 | } | |
877 | ||
19a26f82 MK |
878 | if (!inet_pton(AF_INET6, value, gw)) { |
879 | SYSERROR("invalid ipv6 gateway address: %s", value); | |
28027320 | 880 | free(gw); |
19a26f82 MK |
881 | return -1; |
882 | } | |
883 | ||
884 | netdev->ipv6_gateway = gw; | |
885 | netdev->ipv6_gateway_auto = false; | |
f8fee0e2 MK |
886 | } |
887 | ||
f8fee0e2 MK |
888 | return 0; |
889 | } | |
890 | ||
8fc8295a DE |
891 | static int config_network_script_up(const char *key, const char *value, |
892 | struct lxc_conf *lxc_conf) | |
e3b4c4c4 ST |
893 | { |
894 | struct lxc_netdev *netdev; | |
895 | ||
896 | netdev = network_netdev(key, value, &lxc_conf->network); | |
897 | if (!netdev) | |
8fc8295a | 898 | return -1; |
e3b4c4c4 | 899 | |
8fc8295a DE |
900 | return config_string_item(&netdev->upscript, value); |
901 | } | |
902 | ||
903 | static int config_network_script_down(const char *key, const char *value, | |
904 | struct lxc_conf *lxc_conf) | |
905 | { | |
906 | struct lxc_netdev *netdev; | |
907 | ||
908 | netdev = network_netdev(key, value, &lxc_conf->network); | |
909 | if (!netdev) | |
910 | return -1; | |
911 | ||
912 | return config_string_item(&netdev->downscript, value); | |
e3b4c4c4 ST |
913 | } |
914 | ||
26ddeedd SH |
915 | static int add_hook(struct lxc_conf *lxc_conf, int which, char *hook) |
916 | { | |
917 | struct lxc_list *hooklist; | |
918 | ||
919 | hooklist = malloc(sizeof(*hooklist)); | |
920 | if (!hooklist) { | |
921 | free(hook); | |
922 | return -1; | |
923 | } | |
924 | hooklist->elem = hook; | |
925 | lxc_list_add_tail(&lxc_conf->hooks[which], hooklist); | |
926 | return 0; | |
927 | } | |
928 | ||
12a50cc6 | 929 | static int config_seccomp(const char *key, const char *value, |
8f2c3a70 SH |
930 | struct lxc_conf *lxc_conf) |
931 | { | |
6d03d92a | 932 | return config_path_item(&lxc_conf->seccomp, value); |
8f2c3a70 SH |
933 | } |
934 | ||
12a50cc6 | 935 | static int config_hook(const char *key, const char *value, |
26ddeedd SH |
936 | struct lxc_conf *lxc_conf) |
937 | { | |
7d0eb87e SH |
938 | char *copy; |
939 | ||
940 | if (!value || strlen(value) == 0) | |
941 | return lxc_clear_hooks(lxc_conf, key); | |
942 | ||
943 | copy = strdup(value); | |
26ddeedd SH |
944 | if (!copy) { |
945 | SYSERROR("failed to dup string '%s'", value); | |
946 | return -1; | |
947 | } | |
948 | if (strcmp(key, "lxc.hook.pre-start") == 0) | |
949 | return add_hook(lxc_conf, LXCHOOK_PRESTART, copy); | |
5ea6163a SH |
950 | else if (strcmp(key, "lxc.hook.pre-mount") == 0) |
951 | return add_hook(lxc_conf, LXCHOOK_PREMOUNT, copy); | |
f7bee6c6 MW |
952 | else if (strcmp(key, "lxc.hook.autodev") == 0) |
953 | return add_hook(lxc_conf, LXCHOOK_AUTODEV, copy); | |
26ddeedd SH |
954 | else if (strcmp(key, "lxc.hook.mount") == 0) |
955 | return add_hook(lxc_conf, LXCHOOK_MOUNT, copy); | |
956 | else if (strcmp(key, "lxc.hook.start") == 0) | |
957 | return add_hook(lxc_conf, LXCHOOK_START, copy); | |
958 | else if (strcmp(key, "lxc.hook.post-stop") == 0) | |
959 | return add_hook(lxc_conf, LXCHOOK_POSTSTOP, copy); | |
148e91f5 SH |
960 | else if (strcmp(key, "lxc.hook.clone") == 0) |
961 | return add_hook(lxc_conf, LXCHOOK_CLONE, copy); | |
26ddeedd SH |
962 | SYSERROR("Unknown key: %s", key); |
963 | free(copy); | |
964 | return -1; | |
965 | } | |
966 | ||
8f47bc3f | 967 | static int config_personality(const char *key, const char *value, |
cccc74b5 DL |
968 | struct lxc_conf *lxc_conf) |
969 | { | |
525f0002 | 970 | signed long personality = lxc_config_parse_arch(value); |
cccc74b5 | 971 | |
525f0002 CS |
972 | if (personality >= 0) |
973 | lxc_conf->personality = personality; | |
974 | else | |
975 | WARN("unsupported personality '%s'", value); | |
970ab589 DL |
976 | |
977 | return 0; | |
cccc74b5 DL |
978 | } |
979 | ||
12a50cc6 DE |
980 | static int config_pts(const char *key, const char *value, |
981 | struct lxc_conf *lxc_conf) | |
10db618d | 982 | { |
983 | int maxpts = atoi(value); | |
984 | ||
985 | lxc_conf->pts = maxpts; | |
986 | ||
987 | return 0; | |
988 | } | |
989 | ||
ee1e7aa0 SG |
990 | static int config_start(const char *key, const char *value, |
991 | struct lxc_conf *lxc_conf) | |
992 | { | |
993 | if(strcmp(key, "lxc.start.auto") == 0) { | |
994 | lxc_conf->start_auto = atoi(value); | |
995 | return 0; | |
996 | } | |
997 | else if (strcmp(key, "lxc.start.delay") == 0) { | |
998 | lxc_conf->start_delay = atoi(value); | |
999 | return 0; | |
1000 | } | |
1001 | else if (strcmp(key, "lxc.start.order") == 0) { | |
1002 | lxc_conf->start_order = atoi(value); | |
1003 | return 0; | |
1004 | } | |
1005 | SYSERROR("Unknown key: %s", key); | |
1006 | return -1; | |
1007 | } | |
1008 | ||
1009 | static int config_group(const char *key, const char *value, | |
1010 | struct lxc_conf *lxc_conf) | |
1011 | { | |
1012 | char *groups, *groupptr, *sptr, *token; | |
1013 | struct lxc_list *grouplist; | |
1014 | int ret = -1; | |
1015 | ||
1016 | if (!strlen(value)) | |
1017 | return lxc_clear_groups(lxc_conf); | |
1018 | ||
1019 | groups = strdup(value); | |
1020 | if (!groups) { | |
1021 | SYSERROR("failed to dup '%s'", value); | |
1022 | return -1; | |
1023 | } | |
1024 | ||
1025 | /* in case several groups are specified in a single line | |
1026 | * split these groups in a single element for the list */ | |
1027 | for (groupptr = groups;;groupptr = NULL) { | |
1028 | token = strtok_r(groupptr, " \t", &sptr); | |
1029 | if (!token) { | |
1030 | ret = 0; | |
1031 | break; | |
1032 | } | |
1033 | ||
1034 | grouplist = malloc(sizeof(*grouplist)); | |
1035 | if (!grouplist) { | |
1036 | SYSERROR("failed to allocate groups list"); | |
1037 | break; | |
1038 | } | |
1039 | ||
1040 | grouplist->elem = strdup(token); | |
1041 | if (!grouplist->elem) { | |
1042 | SYSERROR("failed to dup '%s'", token); | |
1043 | free(grouplist); | |
1044 | break; | |
1045 | } | |
1046 | ||
1047 | lxc_list_add_tail(&lxc_conf->groups, grouplist); | |
1048 | } | |
1049 | ||
1050 | free(groups); | |
1051 | ||
1052 | return ret; | |
1053 | } | |
1054 | ||
12a50cc6 DE |
1055 | static int config_tty(const char *key, const char *value, |
1056 | struct lxc_conf *lxc_conf) | |
b0a33c1e | 1057 | { |
1058 | int nbtty = atoi(value); | |
1059 | ||
1060 | lxc_conf->tty = nbtty; | |
1061 | ||
1062 | return 0; | |
1063 | } | |
1064 | ||
12a50cc6 | 1065 | static int config_ttydir(const char *key, const char *value, |
7c6ef2a2 SH |
1066 | struct lxc_conf *lxc_conf) |
1067 | { | |
6d03d92a | 1068 | return config_string_item_max(&lxc_conf->ttydir, value, NAME_MAX+1); |
7c6ef2a2 SH |
1069 | } |
1070 | ||
7e0e1d94 AV |
1071 | static int config_kmsg(const char *key, const char *value, |
1072 | struct lxc_conf *lxc_conf) | |
1073 | { | |
1074 | int v = atoi(value); | |
1075 | ||
1076 | lxc_conf->kmsg = v; | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
fe4de9a6 DE |
1081 | static int config_lsm_aa_profile(const char *key, const char *value, |
1082 | struct lxc_conf *lxc_conf) | |
e075f5d9 | 1083 | { |
6d03d92a | 1084 | return config_string_item(&lxc_conf->lsm_aa_profile, value); |
fe4de9a6 DE |
1085 | } |
1086 | ||
1087 | static int config_lsm_se_context(const char *key, const char *value, | |
1088 | struct lxc_conf *lxc_conf) | |
1089 | { | |
6d03d92a | 1090 | return config_string_item(&lxc_conf->lsm_se_context, value); |
e075f5d9 | 1091 | } |
e075f5d9 | 1092 | |
4a85ce2a SH |
1093 | static int config_logfile(const char *key, const char *value, |
1094 | struct lxc_conf *lxc_conf) | |
1095 | { | |
6d03d92a DE |
1096 | int ret; |
1097 | ||
b40a606e SH |
1098 | // store these values in the lxc_conf, and then try to set for |
1099 | // actual current logging. | |
6d03d92a DE |
1100 | ret = config_path_item(&lxc_conf->logfile, value); |
1101 | if (ret == 0) | |
1102 | ret = lxc_log_set_file(lxc_conf->logfile); | |
1103 | return ret; | |
4a85ce2a SH |
1104 | } |
1105 | ||
1106 | static int config_loglevel(const char *key, const char *value, | |
1107 | struct lxc_conf *lxc_conf) | |
1108 | { | |
9ea87d5d SH |
1109 | int newlevel; |
1110 | ||
4a85ce2a SH |
1111 | if (!value || strlen(value) == 0) |
1112 | return 0; | |
1113 | ||
1114 | if (value[0] >= '0' && value[0] <= '9') | |
9ea87d5d | 1115 | newlevel = atoi(value); |
4a85ce2a | 1116 | else |
9ea87d5d | 1117 | newlevel = lxc_log_priority_to_int(value); |
b40a606e SH |
1118 | // store these values in the lxc_conf, and then try to set for |
1119 | // actual current logging. | |
1120 | lxc_conf->loglevel = newlevel; | |
9ea87d5d | 1121 | return lxc_log_set_level(newlevel); |
4a85ce2a SH |
1122 | } |
1123 | ||
12a50cc6 | 1124 | static int config_autodev(const char *key, const char *value, |
c6883f38 SH |
1125 | struct lxc_conf *lxc_conf) |
1126 | { | |
1127 | int v = atoi(value); | |
1128 | ||
1129 | lxc_conf->autodev = v; | |
1130 | ||
1131 | return 0; | |
1132 | } | |
1133 | ||
a84b9932 AV |
1134 | static int sig_num(const char *sig) |
1135 | { | |
1136 | int n; | |
1137 | char *endp = NULL; | |
1138 | ||
1139 | errno = 0; | |
1140 | n = strtol(sig, &endp, 10); | |
1141 | if (sig == endp || n < 0 || errno != 0) | |
1142 | return -1; | |
1143 | return n; | |
1144 | } | |
1145 | ||
1146 | static int rt_sig_num(const char *signame) | |
1147 | { | |
1148 | int sig_n = 0; | |
1149 | int rtmax = 0; | |
1150 | ||
1151 | if (strncasecmp(signame, "max-", 4) == 0) { | |
1152 | rtmax = 1; | |
1153 | } | |
1154 | signame += 4; | |
1155 | if (!isdigit(*signame)) | |
1156 | return -1; | |
1157 | sig_n = sig_num(signame); | |
1158 | sig_n = rtmax ? SIGRTMAX - sig_n : SIGRTMIN + sig_n; | |
1159 | if (sig_n > SIGRTMAX || sig_n < SIGRTMIN) | |
1160 | return -1; | |
1161 | return sig_n; | |
1162 | } | |
1163 | ||
f0f1d8c0 DE |
1164 | static const char *sig_name(int signum) { |
1165 | int n; | |
1166 | ||
1167 | for (n = 0; n < sizeof(signames) / sizeof((signames)[0]); n++) { | |
1168 | if (n == signames[n].num) | |
1169 | return signames[n].name; | |
1170 | } | |
1171 | return ""; | |
1172 | } | |
1173 | ||
a84b9932 AV |
1174 | static int sig_parse(const char *signame) { |
1175 | int n; | |
1176 | ||
1177 | if (isdigit(*signame)) { | |
1178 | return sig_num(signame); | |
1179 | } else if (strncasecmp(signame, "sig", 3) == 0) { | |
1180 | signame += 3; | |
1181 | if (strncasecmp(signame, "rt", 2) == 0) | |
1182 | return rt_sig_num(signame + 2); | |
1183 | for (n = 0; n < sizeof(signames) / sizeof((signames)[0]); n++) { | |
1184 | if (strcasecmp (signames[n].name, signame) == 0) | |
1185 | return signames[n].num; | |
1186 | } | |
1187 | } | |
1188 | return -1; | |
1189 | } | |
1190 | ||
f0f1d8c0 DE |
1191 | static int config_haltsignal(const char *key, const char *value, |
1192 | struct lxc_conf *lxc_conf) | |
1193 | { | |
1194 | int sig_n = sig_parse(value); | |
1195 | ||
1196 | if (sig_n < 0) | |
1197 | return -1; | |
1198 | lxc_conf->haltsignal = sig_n; | |
1199 | ||
1200 | return 0; | |
1201 | } | |
1202 | ||
a84b9932 AV |
1203 | static int config_stopsignal(const char *key, const char *value, |
1204 | struct lxc_conf *lxc_conf) | |
1205 | { | |
1206 | int sig_n = sig_parse(value); | |
1207 | ||
1208 | if (sig_n < 0) | |
1209 | return -1; | |
1210 | lxc_conf->stopsignal = sig_n; | |
1211 | ||
1212 | return 0; | |
1213 | } | |
1214 | ||
12a50cc6 DE |
1215 | static int config_cgroup(const char *key, const char *value, |
1216 | struct lxc_conf *lxc_conf) | |
576f946d | 1217 | { |
1218 | char *token = "lxc.cgroup."; | |
1219 | char *subkey; | |
bf83c5b9 MS |
1220 | struct lxc_list *cglist = NULL; |
1221 | struct lxc_cgroup *cgelem = NULL; | |
576f946d | 1222 | |
7d0eb87e SH |
1223 | if (!value || strlen(value) == 0) |
1224 | return lxc_clear_cgroups(lxc_conf, key); | |
1225 | ||
576f946d | 1226 | subkey = strstr(key, token); |
1227 | ||
1228 | if (!subkey) | |
1229 | return -1; | |
1230 | ||
1231 | if (!strlen(subkey)) | |
1232 | return -1; | |
1233 | ||
1234 | if (strlen(subkey) == strlen(token)) | |
1235 | return -1; | |
a871ff6b | 1236 | |
576f946d | 1237 | subkey += strlen(token); |
1238 | ||
1239 | cglist = malloc(sizeof(*cglist)); | |
1240 | if (!cglist) | |
bf83c5b9 | 1241 | goto out; |
576f946d | 1242 | |
1243 | cgelem = malloc(sizeof(*cgelem)); | |
bf83c5b9 MS |
1244 | if (!cgelem) |
1245 | goto out; | |
1246 | memset(cgelem, 0, sizeof(*cgelem)); | |
576f946d | 1247 | |
1248 | cgelem->subsystem = strdup(subkey); | |
1249 | cgelem->value = strdup(value); | |
bf83c5b9 MS |
1250 | |
1251 | if (!cgelem->subsystem || !cgelem->value) | |
1252 | goto out; | |
1253 | ||
576f946d | 1254 | cglist->elem = cgelem; |
1255 | ||
94d12f0a | 1256 | lxc_list_add_tail(&lxc_conf->cgroup, cglist); |
576f946d | 1257 | |
1258 | return 0; | |
bf83c5b9 MS |
1259 | |
1260 | out: | |
1261 | if (cglist) | |
1262 | free(cglist); | |
1263 | ||
1264 | if (cgelem) { | |
1265 | if (cgelem->subsystem) | |
1266 | free(cgelem->subsystem); | |
1267 | ||
1268 | if (cgelem->value) | |
1269 | free(cgelem->value); | |
1270 | ||
1271 | free(cgelem); | |
1272 | } | |
1273 | ||
1274 | return -1; | |
576f946d | 1275 | } |
1276 | ||
f6d3e3e4 SH |
1277 | static int config_idmap(const char *key, const char *value, struct lxc_conf *lxc_conf) |
1278 | { | |
1279 | char *token = "lxc.id_map"; | |
1280 | char *subkey; | |
1281 | struct lxc_list *idmaplist = NULL; | |
1282 | struct id_map *idmap = NULL; | |
251d0d2a | 1283 | unsigned long hostid, nsid, range; |
f6d3e3e4 SH |
1284 | char type; |
1285 | int ret; | |
1286 | ||
7d0eb87e SH |
1287 | if (!value || strlen(value) == 0) |
1288 | return lxc_clear_idmaps(lxc_conf); | |
1289 | ||
f6d3e3e4 SH |
1290 | subkey = strstr(key, token); |
1291 | ||
1292 | if (!subkey) | |
1293 | return -1; | |
1294 | ||
1295 | if (!strlen(subkey)) | |
1296 | return -1; | |
1297 | ||
1298 | idmaplist = malloc(sizeof(*idmaplist)); | |
1299 | if (!idmaplist) | |
1300 | goto out; | |
1301 | ||
1302 | idmap = malloc(sizeof(*idmap)); | |
1303 | if (!idmap) | |
1304 | goto out; | |
1305 | memset(idmap, 0, sizeof(*idmap)); | |
1306 | ||
251d0d2a | 1307 | ret = sscanf(value, "%c %lu %lu %lu", &type, &nsid, &hostid, &range); |
f6d3e3e4 SH |
1308 | if (ret != 4) |
1309 | goto out; | |
7e60c3f0 | 1310 | |
251d0d2a | 1311 | INFO("read uid map: type %c nsid %lu hostid %lu range %lu", type, nsid, hostid, range); |
ac7725e7 | 1312 | if (type == 'u') |
f6d3e3e4 | 1313 | idmap->idtype = ID_TYPE_UID; |
ac7725e7 | 1314 | else if (type == 'g') |
f6d3e3e4 SH |
1315 | idmap->idtype = ID_TYPE_GID; |
1316 | else | |
1317 | goto out; | |
7e60c3f0 | 1318 | |
f6d3e3e4 SH |
1319 | idmap->hostid = hostid; |
1320 | idmap->nsid = nsid; | |
1321 | idmap->range = range; | |
1322 | ||
7e60c3f0 SG |
1323 | idmaplist->elem = idmap; |
1324 | lxc_list_add_tail(&lxc_conf->id_map, idmaplist); | |
1325 | ||
f6d3e3e4 SH |
1326 | return 0; |
1327 | ||
1328 | out: | |
1329 | if (idmaplist) | |
1330 | free(idmaplist); | |
1331 | ||
1332 | if (idmap) { | |
1333 | free(idmap); | |
1334 | } | |
1335 | ||
1336 | return -1; | |
1337 | } | |
1338 | ||
d95db067 DE |
1339 | static int config_fstab(const char *key, const char *value, |
1340 | struct lxc_conf *lxc_conf) | |
1341 | { | |
6d03d92a | 1342 | return config_path_item(&lxc_conf->fstab, value); |
d95db067 DE |
1343 | } |
1344 | ||
368bbc02 CS |
1345 | static int config_mount_auto(const char *key, const char *value, |
1346 | struct lxc_conf *lxc_conf) | |
1347 | { | |
1348 | char *autos, *autoptr, *sptr, *token; | |
b06b8511 CS |
1349 | static struct { const char *token; int mask; int flag; } allowed_auto_mounts[] = { |
1350 | { "proc", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_MIXED }, | |
1351 | { "proc:mixed", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_MIXED }, | |
1352 | { "proc:rw", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_RW }, | |
1353 | { "sys", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RO }, | |
1354 | { "sys:ro", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RO }, | |
1355 | { "sys:rw", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RW }, | |
1356 | { "cgroup", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_MIXED }, | |
1357 | { "cgroup:mixed", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_MIXED }, | |
1358 | { "cgroup:ro", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RO }, | |
1359 | { "cgroup:rw", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RW }, | |
1360 | { "cgroup-full", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_MIXED }, | |
1361 | { "cgroup-full:mixed", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_MIXED }, | |
1362 | { "cgroup-full:ro", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RO }, | |
1363 | { "cgroup-full:rw", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RW }, | |
1364 | /* NB: For adding anything that ist just a single on/off, but has | |
1365 | * no options: keep mask and flag identical and just define the | |
1366 | * enum value as an unused bit so far | |
1367 | */ | |
368bbc02 CS |
1368 | { NULL, 0 } |
1369 | }; | |
1370 | int i; | |
1371 | int ret = -1; | |
1372 | ||
1373 | if (!strlen(value)) | |
1374 | return -1; | |
1375 | ||
1376 | autos = strdup(value); | |
1377 | if (!autos) { | |
1378 | SYSERROR("failed to dup '%s'", value); | |
1379 | return -1; | |
1380 | } | |
1381 | ||
1382 | for (autoptr = autos; ; autoptr = NULL) { | |
1383 | token = strtok_r(autoptr, " \t", &sptr); | |
1384 | if (!token) { | |
1385 | ret = 0; | |
1386 | break; | |
1387 | } | |
1388 | ||
1389 | for (i = 0; allowed_auto_mounts[i].token; i++) { | |
1390 | if (!strcmp(allowed_auto_mounts[i].token, token)) | |
1391 | break; | |
1392 | } | |
1393 | ||
1394 | if (!allowed_auto_mounts[i].token) { | |
1395 | ERROR("Invalid filesystem to automount: %s", token); | |
1396 | break; | |
1397 | } | |
1398 | ||
b06b8511 | 1399 | lxc_conf->auto_mounts &= ~allowed_auto_mounts[i].mask; |
368bbc02 CS |
1400 | lxc_conf->auto_mounts |= allowed_auto_mounts[i].flag; |
1401 | } | |
1402 | ||
1403 | free(autos); | |
1404 | ||
1405 | return ret; | |
1406 | } | |
1407 | ||
12a50cc6 DE |
1408 | static int config_mount(const char *key, const char *value, |
1409 | struct lxc_conf *lxc_conf) | |
e7938e9e MN |
1410 | { |
1411 | char *fstab_token = "lxc.mount"; | |
1412 | char *token = "lxc.mount.entry"; | |
368bbc02 | 1413 | char *auto_token = "lxc.mount.auto"; |
e7938e9e MN |
1414 | char *subkey; |
1415 | char *mntelem; | |
1416 | struct lxc_list *mntlist; | |
1417 | ||
7d0eb87e SH |
1418 | if (!value || strlen(value) == 0) |
1419 | return lxc_clear_mount_entries(lxc_conf); | |
1420 | ||
e7938e9e MN |
1421 | subkey = strstr(key, token); |
1422 | ||
1423 | if (!subkey) { | |
368bbc02 | 1424 | subkey = strstr(key, auto_token); |
e7938e9e | 1425 | |
368bbc02 CS |
1426 | if (!subkey) { |
1427 | subkey = strstr(key, fstab_token); | |
1428 | ||
1429 | if (!subkey) | |
1430 | return -1; | |
1431 | ||
1432 | return config_fstab(key, value, lxc_conf); | |
1433 | } | |
e7938e9e | 1434 | |
368bbc02 | 1435 | return config_mount_auto(key, value, lxc_conf); |
e7938e9e MN |
1436 | } |
1437 | ||
1438 | if (!strlen(subkey)) | |
1439 | return -1; | |
1440 | ||
1441 | mntlist = malloc(sizeof(*mntlist)); | |
1442 | if (!mntlist) | |
1443 | return -1; | |
1444 | ||
1445 | mntelem = strdup(value); | |
00b6be44 SH |
1446 | if (!mntelem) { |
1447 | free(mntlist); | |
bf83c5b9 | 1448 | return -1; |
00b6be44 | 1449 | } |
e7938e9e MN |
1450 | mntlist->elem = mntelem; |
1451 | ||
1452 | lxc_list_add_tail(&lxc_conf->mount_list, mntlist); | |
1453 | ||
1454 | return 0; | |
1455 | } | |
1456 | ||
1fb86a7c SH |
1457 | static int config_cap_keep(const char *key, const char *value, |
1458 | struct lxc_conf *lxc_conf) | |
1459 | { | |
1460 | char *keepcaps, *keepptr, *sptr, *token; | |
1461 | struct lxc_list *keeplist; | |
1462 | int ret = -1; | |
1463 | ||
1464 | if (!strlen(value)) | |
7d0eb87e | 1465 | return lxc_clear_config_keepcaps(lxc_conf); |
1fb86a7c SH |
1466 | |
1467 | keepcaps = strdup(value); | |
1468 | if (!keepcaps) { | |
1469 | SYSERROR("failed to dup '%s'", value); | |
1470 | return -1; | |
1471 | } | |
1472 | ||
1473 | /* in case several capability keep is specified in a single line | |
1474 | * split these caps in a single element for the list */ | |
1475 | for (keepptr = keepcaps;;keepptr = NULL) { | |
1476 | token = strtok_r(keepptr, " \t", &sptr); | |
1477 | if (!token) { | |
1478 | ret = 0; | |
1479 | break; | |
1480 | } | |
1481 | ||
1482 | keeplist = malloc(sizeof(*keeplist)); | |
1483 | if (!keeplist) { | |
1484 | SYSERROR("failed to allocate keepcap list"); | |
1485 | break; | |
1486 | } | |
1487 | ||
1488 | keeplist->elem = strdup(token); | |
1489 | if (!keeplist->elem) { | |
1490 | SYSERROR("failed to dup '%s'", token); | |
1491 | free(keeplist); | |
1492 | break; | |
1493 | } | |
1494 | ||
1495 | lxc_list_add_tail(&lxc_conf->keepcaps, keeplist); | |
1496 | } | |
1497 | ||
1498 | free(keepcaps); | |
1499 | ||
1500 | return ret; | |
1501 | } | |
1502 | ||
12a50cc6 | 1503 | static int config_cap_drop(const char *key, const char *value, |
81810dd1 DL |
1504 | struct lxc_conf *lxc_conf) |
1505 | { | |
d95db067 | 1506 | char *dropcaps, *dropptr, *sptr, *token; |
81810dd1 DL |
1507 | struct lxc_list *droplist; |
1508 | int ret = -1; | |
1509 | ||
1510 | if (!strlen(value)) | |
7d0eb87e | 1511 | return lxc_clear_config_caps(lxc_conf); |
81810dd1 DL |
1512 | |
1513 | dropcaps = strdup(value); | |
1514 | if (!dropcaps) { | |
1515 | SYSERROR("failed to dup '%s'", value); | |
1516 | return -1; | |
1517 | } | |
1518 | ||
1519 | /* in case several capability drop is specified in a single line | |
1520 | * split these caps in a single element for the list */ | |
d95db067 DE |
1521 | for (dropptr = dropcaps;;dropptr = NULL) { |
1522 | token = strtok_r(dropptr, " \t", &sptr); | |
81810dd1 DL |
1523 | if (!token) { |
1524 | ret = 0; | |
1525 | break; | |
1526 | } | |
81810dd1 DL |
1527 | |
1528 | droplist = malloc(sizeof(*droplist)); | |
1529 | if (!droplist) { | |
1530 | SYSERROR("failed to allocate drop list"); | |
1531 | break; | |
1532 | } | |
1533 | ||
1534 | droplist->elem = strdup(token); | |
1535 | if (!droplist->elem) { | |
1536 | SYSERROR("failed to dup '%s'", token); | |
1537 | free(droplist); | |
1538 | break; | |
1539 | } | |
1540 | ||
1541 | lxc_list_add_tail(&lxc_conf->caps, droplist); | |
1542 | } | |
1543 | ||
1544 | free(dropcaps); | |
1545 | ||
1546 | return ret; | |
1547 | } | |
1548 | ||
12a50cc6 | 1549 | static int config_console(const char *key, const char *value, |
28a4b0e5 DL |
1550 | struct lxc_conf *lxc_conf) |
1551 | { | |
6d03d92a | 1552 | return config_path_item(&lxc_conf->console.path, value); |
28a4b0e5 DL |
1553 | } |
1554 | ||
12a50cc6 | 1555 | static int config_includefile(const char *key, const char *value, |
09ad6246 SH |
1556 | struct lxc_conf *lxc_conf) |
1557 | { | |
1558 | return lxc_config_read(value, lxc_conf); | |
1559 | } | |
1560 | ||
12a50cc6 DE |
1561 | static int config_rootfs(const char *key, const char *value, |
1562 | struct lxc_conf *lxc_conf) | |
c2cc9f0a | 1563 | { |
6d03d92a | 1564 | return config_path_item(&lxc_conf->rootfs.path, value); |
c2cc9f0a | 1565 | } |
1566 | ||
12a50cc6 DE |
1567 | static int config_rootfs_mount(const char *key, const char *value, |
1568 | struct lxc_conf *lxc_conf) | |
23b7ea69 | 1569 | { |
6d03d92a | 1570 | return config_path_item(&lxc_conf->rootfs.mount, value); |
23b7ea69 DL |
1571 | } |
1572 | ||
a17b1e65 SG |
1573 | static int config_rootfs_options(const char *key, const char *value, |
1574 | struct lxc_conf *lxc_conf) | |
1575 | { | |
1576 | return config_string_item(&lxc_conf->rootfs.options, value); | |
1577 | } | |
1578 | ||
12a50cc6 DE |
1579 | static int config_pivotdir(const char *key, const char *value, |
1580 | struct lxc_conf *lxc_conf) | |
bf601689 | 1581 | { |
6d03d92a | 1582 | return config_path_item(&lxc_conf->rootfs.pivot, value); |
bf601689 MH |
1583 | } |
1584 | ||
12a50cc6 DE |
1585 | static int config_utsname(const char *key, const char *value, |
1586 | struct lxc_conf *lxc_conf) | |
c2cc9f0a | 1587 | { |
1588 | struct utsname *utsname; | |
1589 | ||
1590 | utsname = malloc(sizeof(*utsname)); | |
1591 | if (!utsname) { | |
36eb9bde | 1592 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 1593 | return -1; |
1594 | } | |
1595 | ||
1596 | if (strlen(value) >= sizeof(utsname->nodename)) { | |
36eb9bde | 1597 | ERROR("node name '%s' is too long", |
16e29c91 | 1598 | value); |
b6f24d54 | 1599 | free(utsname); |
c2cc9f0a | 1600 | return -1; |
1601 | } | |
1602 | ||
1603 | strcpy(utsname->nodename, value); | |
d95db067 DE |
1604 | if (lxc_conf->utsname) |
1605 | free(lxc_conf->utsname); | |
c2cc9f0a | 1606 | lxc_conf->utsname = utsname; |
1607 | ||
1608 | return 0; | |
1609 | } | |
1610 | ||
7a7ff0c6 | 1611 | static int parse_line(char *buffer, void *data) |
c2cc9f0a | 1612 | { |
72d0e1cb | 1613 | struct lxc_config_t *config; |
81192358 | 1614 | char *line, *linep; |
c2cc9f0a | 1615 | char *dot; |
1616 | char *key; | |
1617 | char *value; | |
476d4cf1 | 1618 | int ret = 0; |
c2cc9f0a | 1619 | |
91480a0f | 1620 | if (lxc_is_line_empty(buffer)) |
c2cc9f0a | 1621 | return 0; |
1622 | ||
81192358 DL |
1623 | /* we have to dup the buffer otherwise, at the re-exec for |
1624 | * reboot we modified the original string on the stack by | |
1625 | * replacing '=' by '\0' below | |
91480a0f | 1626 | */ |
81192358 | 1627 | linep = line = strdup(buffer); |
91480a0f DL |
1628 | if (!line) { |
1629 | SYSERROR("failed to allocate memory for '%s'", buffer); | |
81192358 | 1630 | return -1; |
91480a0f DL |
1631 | } |
1632 | ||
b2718c72 | 1633 | line += lxc_char_left_gc(line, strlen(line)); |
476d4cf1 DL |
1634 | |
1635 | /* martian option - ignoring it, the commented lines beginning by '#' | |
1636 | * fall in this case | |
1637 | */ | |
1638 | if (strncmp(line, "lxc.", 4)) | |
91480a0f | 1639 | goto out; |
476d4cf1 DL |
1640 | |
1641 | ret = -1; | |
c2cc9f0a | 1642 | |
b2718c72 | 1643 | dot = strstr(line, "="); |
c2cc9f0a | 1644 | if (!dot) { |
36eb9bde | 1645 | ERROR("invalid configuration line: %s", line); |
91480a0f | 1646 | goto out; |
c2cc9f0a | 1647 | } |
a871ff6b | 1648 | |
c2cc9f0a | 1649 | *dot = '\0'; |
1650 | value = dot + 1; | |
1651 | ||
b2718c72 | 1652 | key = line; |
1653 | key[lxc_char_right_gc(key, strlen(key))] = '\0'; | |
c2cc9f0a | 1654 | |
b2718c72 | 1655 | value += lxc_char_left_gc(value, strlen(value)); |
1656 | value[lxc_char_right_gc(value, strlen(value))] = '\0'; | |
c2cc9f0a | 1657 | |
72d0e1cb | 1658 | config = lxc_getconfig(key); |
c2cc9f0a | 1659 | if (!config) { |
6e1d9b94 | 1660 | ERROR("unknown key %s", key); |
91480a0f | 1661 | goto out; |
c2cc9f0a | 1662 | } |
1663 | ||
91480a0f DL |
1664 | ret = config->cb(key, value, data); |
1665 | ||
1666 | out: | |
81192358 | 1667 | free(linep); |
91480a0f | 1668 | return ret; |
c2cc9f0a | 1669 | } |
1670 | ||
74a3920a | 1671 | static int lxc_config_readline(char *buffer, struct lxc_conf *conf) |
af5b0155 CLG |
1672 | { |
1673 | return parse_line(buffer, conf); | |
1674 | } | |
1675 | ||
b2718c72 | 1676 | int lxc_config_read(const char *file, struct lxc_conf *conf) |
c2cc9f0a | 1677 | { |
f3ca99fd SH |
1678 | if( access(file, R_OK) == -1 ) { |
1679 | return -1; | |
1680 | } | |
f7bee6c6 MW |
1681 | /* Catch only the top level config file name in the structure */ |
1682 | if( ! conf->rcfile ) { | |
1683 | conf->rcfile = strdup( file ); | |
1684 | } | |
2382ecff | 1685 | return lxc_file_for_each_line(file, parse_line, conf); |
c2cc9f0a | 1686 | } |
62e46035 CLG |
1687 | |
1688 | int lxc_config_define_add(struct lxc_list *defines, char* arg) | |
1689 | { | |
1690 | struct lxc_list *dent; | |
1691 | ||
1692 | dent = malloc(sizeof(struct lxc_list)); | |
1693 | if (!dent) | |
1694 | return -1; | |
1695 | ||
1696 | dent->elem = arg; | |
1697 | lxc_list_add_tail(defines, dent); | |
1698 | return 0; | |
1699 | } | |
1700 | ||
226a18d6 | 1701 | int lxc_config_define_load(struct lxc_list *defines, struct lxc_conf *conf) |
62e46035 | 1702 | { |
9ebb03ad | 1703 | struct lxc_list *it,*next; |
62e46035 CLG |
1704 | int ret = 0; |
1705 | ||
1706 | lxc_list_for_each(it, defines) { | |
1707 | ret = lxc_config_readline(it->elem, conf); | |
1708 | if (ret) | |
1709 | break; | |
1710 | } | |
1711 | ||
9ebb03ad | 1712 | lxc_list_for_each_safe(it, defines, next) { |
62e46035 CLG |
1713 | lxc_list_del(it); |
1714 | free(it); | |
1715 | } | |
1716 | ||
1717 | return ret; | |
1718 | } | |
525f0002 CS |
1719 | |
1720 | signed long lxc_config_parse_arch(const char *arch) | |
1721 | { | |
6ff05e18 | 1722 | #if HAVE_SYS_PERSONALITY_H |
525f0002 CS |
1723 | struct per_name { |
1724 | char *name; | |
1725 | unsigned long per; | |
bb8d8207 | 1726 | } pername[] = { |
525f0002 | 1727 | { "x86", PER_LINUX32 }, |
bb8d8207 DE |
1728 | { "linux32", PER_LINUX32 }, |
1729 | { "i386", PER_LINUX32 }, | |
1730 | { "i486", PER_LINUX32 }, | |
1731 | { "i586", PER_LINUX32 }, | |
525f0002 | 1732 | { "i686", PER_LINUX32 }, |
bb8d8207 DE |
1733 | { "athlon", PER_LINUX32 }, |
1734 | { "linux64", PER_LINUX }, | |
525f0002 CS |
1735 | { "x86_64", PER_LINUX }, |
1736 | { "amd64", PER_LINUX }, | |
1737 | }; | |
1738 | size_t len = sizeof(pername) / sizeof(pername[0]); | |
1739 | ||
1740 | int i; | |
1741 | ||
1742 | for (i = 0; i < len; i++) { | |
1743 | if (!strcmp(pername[i].name, arch)) | |
1744 | return pername[i].per; | |
1745 | } | |
6ff05e18 | 1746 | #endif |
525f0002 CS |
1747 | |
1748 | return -1; | |
1749 | } | |
72d0e1cb | 1750 | |
4d69b293 NK |
1751 | int lxc_fill_elevated_privileges(char *flaglist, int *flags) |
1752 | { | |
1753 | char *token, *saveptr = NULL; | |
1754 | int i, aflag; | |
1755 | struct { const char *token; int flag; } all_privs[] = { | |
1756 | { "CGROUP", LXC_ATTACH_MOVE_TO_CGROUP }, | |
1757 | { "CAP", LXC_ATTACH_DROP_CAPABILITIES }, | |
1758 | { "LSM", LXC_ATTACH_LSM_EXEC }, | |
1759 | { NULL, 0 } | |
1760 | }; | |
1761 | ||
1762 | if (!flaglist) { | |
1763 | /* for the sake of backward compatibility, drop all privileges | |
1764 | if none is specified */ | |
1765 | for (i = 0; all_privs[i].token; i++) { | |
1766 | *flags |= all_privs[i].flag; | |
1767 | } | |
1768 | return 0; | |
1769 | } | |
1770 | ||
1771 | token = strtok_r(flaglist, "|", &saveptr); | |
1772 | while (token) { | |
1773 | aflag = -1; | |
1774 | for (i = 0; all_privs[i].token; i++) { | |
1775 | if (!strcmp(all_privs[i].token, token)) | |
1776 | aflag = all_privs[i].flag; | |
1777 | } | |
1778 | if (aflag < 0) | |
1779 | return -1; | |
1780 | ||
1781 | *flags |= aflag; | |
1782 | ||
1783 | token = strtok_r(NULL, "|", &saveptr); | |
1784 | } | |
1785 | return 0; | |
1786 | } | |
1787 | ||
72d0e1cb SG |
1788 | static int lxc_get_conf_int(struct lxc_conf *c, char *retv, int inlen, int v) |
1789 | { | |
1790 | if (!retv) | |
1791 | inlen = 0; | |
1792 | else | |
1793 | memset(retv, 0, inlen); | |
1794 | return snprintf(retv, inlen, "%d", v); | |
1795 | } | |
1796 | ||
1797 | static int lxc_get_arch_entry(struct lxc_conf *c, char *retv, int inlen) | |
1798 | { | |
6ff05e18 | 1799 | int fulllen = 0; |
72d0e1cb SG |
1800 | |
1801 | if (!retv) | |
1802 | inlen = 0; | |
1803 | else | |
1804 | memset(retv, 0, inlen); | |
1805 | ||
6ff05e18 SG |
1806 | #if HAVE_SYS_PERSONALITY_H |
1807 | int len = 0; | |
1808 | ||
72d0e1cb SG |
1809 | switch(c->personality) { |
1810 | case PER_LINUX32: strprint(retv, inlen, "x86"); break; | |
1811 | case PER_LINUX: strprint(retv, inlen, "x86_64"); break; | |
1812 | default: break; | |
1813 | } | |
6ff05e18 | 1814 | #endif |
72d0e1cb SG |
1815 | |
1816 | return fulllen; | |
1817 | } | |
1818 | ||
1819 | /* | |
1820 | * If you ask for a specific cgroup value, i.e. lxc.cgroup.devices.list, | |
1821 | * then just the value(s) will be printed. Since there still could be | |
1822 | * more than one, it is newline-separated. | |
1823 | * (Maybe that's ambigous, since some values, i.e. devices.list, will | |
1824 | * already have newlines?) | |
1825 | * If you ask for 'lxc.cgroup", then all cgroup entries will be printed, | |
1826 | * in 'lxc.cgroup.subsystem.key = value' format. | |
1827 | */ | |
12a50cc6 DE |
1828 | static int lxc_get_cgroup_entry(struct lxc_conf *c, char *retv, int inlen, |
1829 | const char *key) | |
72d0e1cb SG |
1830 | { |
1831 | int fulllen = 0, len; | |
1832 | int all = 0; | |
1833 | struct lxc_list *it; | |
1834 | ||
1835 | if (!retv) | |
1836 | inlen = 0; | |
1837 | else | |
1838 | memset(retv, 0, inlen); | |
1839 | ||
1840 | if (strcmp(key, "all") == 0) | |
1841 | all = 1; | |
1842 | ||
1843 | lxc_list_for_each(it, &c->cgroup) { | |
1844 | struct lxc_cgroup *cg = it->elem; | |
1845 | if (all) { | |
1846 | strprint(retv, inlen, "lxc.cgroup.%s = %s\n", cg->subsystem, cg->value); | |
1847 | } else if (strcmp(cg->subsystem, key) == 0) { | |
1848 | strprint(retv, inlen, "%s\n", cg->value); | |
1849 | } | |
1850 | } | |
1851 | return fulllen; | |
1852 | } | |
1853 | ||
12a50cc6 DE |
1854 | static int lxc_get_item_hooks(struct lxc_conf *c, char *retv, int inlen, |
1855 | const char *key) | |
72d0e1cb SG |
1856 | { |
1857 | char *subkey; | |
1858 | int len, fulllen = 0, found = -1; | |
1859 | struct lxc_list *it; | |
1860 | int i; | |
1861 | ||
1862 | /* "lxc.hook.mount" */ | |
1863 | subkey = index(key, '.'); | |
1864 | if (subkey) subkey = index(subkey+1, '.'); | |
1865 | if (!subkey) | |
1866 | return -1; | |
1867 | subkey++; | |
1868 | if (!*subkey) | |
1869 | return -1; | |
1870 | for (i=0; i<NUM_LXC_HOOKS; i++) { | |
1871 | if (strcmp(lxchook_names[i], subkey) == 0) { | |
1872 | found=i; | |
1873 | break; | |
1874 | } | |
1875 | } | |
1876 | if (found == -1) | |
1877 | return -1; | |
1878 | ||
1879 | if (!retv) | |
1880 | inlen = 0; | |
1881 | else | |
1882 | memset(retv, 0, inlen); | |
1883 | ||
1884 | lxc_list_for_each(it, &c->hooks[found]) { | |
1885 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1886 | } | |
1887 | return fulllen; | |
1888 | } | |
1889 | ||
ee1e7aa0 SG |
1890 | static int lxc_get_item_groups(struct lxc_conf *c, char *retv, int inlen) |
1891 | { | |
1892 | int len, fulllen = 0; | |
1893 | struct lxc_list *it; | |
1894 | ||
1895 | if (!retv) | |
1896 | inlen = 0; | |
1897 | else | |
1898 | memset(retv, 0, inlen); | |
1899 | ||
1900 | lxc_list_for_each(it, &c->groups) { | |
1901 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1902 | } | |
1903 | return fulllen; | |
1904 | } | |
1905 | ||
72d0e1cb SG |
1906 | static int lxc_get_item_cap_drop(struct lxc_conf *c, char *retv, int inlen) |
1907 | { | |
1908 | int len, fulllen = 0; | |
1909 | struct lxc_list *it; | |
1910 | ||
1911 | if (!retv) | |
1912 | inlen = 0; | |
1913 | else | |
1914 | memset(retv, 0, inlen); | |
1915 | ||
1916 | lxc_list_for_each(it, &c->caps) { | |
1917 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1918 | } | |
1919 | return fulllen; | |
1920 | } | |
1921 | ||
1fb86a7c SH |
1922 | static int lxc_get_item_cap_keep(struct lxc_conf *c, char *retv, int inlen) |
1923 | { | |
1924 | int len, fulllen = 0; | |
1925 | struct lxc_list *it; | |
1926 | ||
1927 | if (!retv) | |
1928 | inlen = 0; | |
1929 | else | |
1930 | memset(retv, 0, inlen); | |
1931 | ||
1932 | lxc_list_for_each(it, &c->keepcaps) { | |
1933 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1934 | } | |
1935 | return fulllen; | |
1936 | } | |
1937 | ||
72d0e1cb SG |
1938 | static int lxc_get_mount_entries(struct lxc_conf *c, char *retv, int inlen) |
1939 | { | |
1940 | int len, fulllen = 0; | |
1941 | struct lxc_list *it; | |
1942 | ||
1943 | if (!retv) | |
1944 | inlen = 0; | |
1945 | else | |
1946 | memset(retv, 0, inlen); | |
1947 | ||
1948 | lxc_list_for_each(it, &c->mount_list) { | |
1949 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1950 | } | |
1951 | return fulllen; | |
1952 | } | |
1953 | ||
b099e9e9 SH |
1954 | static int lxc_get_auto_mounts(struct lxc_conf *c, char *retv, int inlen) |
1955 | { | |
1956 | int len, fulllen = 0; | |
1957 | ||
1958 | if (!retv) | |
1959 | inlen = 0; | |
1960 | else | |
1961 | memset(retv, 0, inlen); | |
1962 | ||
1963 | if (!(c->auto_mounts & LXC_AUTO_ALL_MASK)) | |
1964 | return 0; | |
1965 | ||
1966 | switch (c->auto_mounts & LXC_AUTO_PROC_MASK) { | |
1967 | case LXC_AUTO_PROC_MIXED: strprint(retv, inlen, "proc:mixed\n"); break; | |
1968 | case LXC_AUTO_PROC_RW: strprint(retv, inlen, "proc:rw"); break; | |
1969 | default: break; | |
1970 | } | |
1971 | switch (c->auto_mounts & LXC_AUTO_SYS_MASK) { | |
1972 | case LXC_AUTO_SYS_RO: strprint(retv, inlen, "sys:ro"); break; | |
1973 | case LXC_AUTO_SYS_RW: strprint(retv, inlen, "sys:rw"); break; | |
1974 | default: break; | |
1975 | } | |
1976 | switch (c->auto_mounts & LXC_AUTO_CGROUP_MASK) { | |
1977 | case LXC_AUTO_CGROUP_MIXED: strprint(retv, inlen, "cgroup:mixed"); break; | |
1978 | case LXC_AUTO_CGROUP_RO: strprint(retv, inlen, "cgroup:ro"); break; | |
1979 | case LXC_AUTO_CGROUP_RW: strprint(retv, inlen, "cgroup:rw"); break; | |
1980 | case LXC_AUTO_CGROUP_FULL_MIXED: strprint(retv, inlen, "cgroup-full:mixed"); break; | |
1981 | case LXC_AUTO_CGROUP_FULL_RO: strprint(retv, inlen, "cgroup-full:ro"); break; | |
1982 | case LXC_AUTO_CGROUP_FULL_RW: strprint(retv, inlen, "cgroup-full:rw"); break; | |
1983 | default: break; | |
1984 | } | |
1985 | return fulllen; | |
1986 | } | |
1987 | ||
72d0e1cb SG |
1988 | /* |
1989 | * lxc.network.0.XXX, where XXX can be: name, type, link, flags, type, | |
8fc8295a | 1990 | * macvlan.mode, veth.pair, vlan, ipv4, ipv6, script.up, hwaddr, mtu, |
72d0e1cb SG |
1991 | * ipv4_gateway, ipv6_gateway. ipvX_gateway can return 'auto' instead |
1992 | * of an address. ipv4 and ipv6 return lists (newline-separated). | |
1993 | * things like veth.pair return '' if invalid (i.e. if called for vlan | |
1994 | * type). | |
1995 | */ | |
12a50cc6 DE |
1996 | static int lxc_get_item_nic(struct lxc_conf *c, char *retv, int inlen, |
1997 | const char *key) | |
72d0e1cb SG |
1998 | { |
1999 | char *p1; | |
fe88b9d2 | 2000 | int len, fulllen = 0; |
72d0e1cb SG |
2001 | struct lxc_netdev *netdev; |
2002 | ||
2003 | if (!retv) | |
2004 | inlen = 0; | |
2005 | else | |
2006 | memset(retv, 0, inlen); | |
2007 | ||
2008 | p1 = index(key, '.'); | |
2009 | if (!p1 || *(p1+1) == '\0') return -1; | |
2010 | p1++; | |
2011 | ||
2012 | netdev = get_netdev_from_key(key, &c->network); | |
2013 | if (!netdev) | |
2014 | return -1; | |
2015 | if (strcmp(p1, "name") == 0) { | |
2016 | if (netdev->name) | |
2017 | strprint(retv, inlen, "%s", netdev->name); | |
2018 | } else if (strcmp(p1, "type") == 0) { | |
2019 | strprint(retv, inlen, "%s", lxc_net_type_to_str(netdev->type)); | |
2020 | } else if (strcmp(p1, "link") == 0) { | |
2021 | if (netdev->link) | |
2022 | strprint(retv, inlen, "%s", netdev->link); | |
2023 | } else if (strcmp(p1, "flags") == 0) { | |
2024 | if (netdev->flags & IFF_UP) | |
2025 | strprint(retv, inlen, "up"); | |
8fc8295a | 2026 | } else if (strcmp(p1, "script.up") == 0) { |
72d0e1cb SG |
2027 | if (netdev->upscript) |
2028 | strprint(retv, inlen, "%s", netdev->upscript); | |
8fc8295a DE |
2029 | } else if (strcmp(p1, "script.down") == 0) { |
2030 | if (netdev->downscript) | |
2031 | strprint(retv, inlen, "%s", netdev->downscript); | |
72d0e1cb SG |
2032 | } else if (strcmp(p1, "hwaddr") == 0) { |
2033 | if (netdev->hwaddr) | |
2034 | strprint(retv, inlen, "%s", netdev->hwaddr); | |
2035 | } else if (strcmp(p1, "mtu") == 0) { | |
2036 | if (netdev->mtu) | |
2037 | strprint(retv, inlen, "%s", netdev->mtu); | |
2038 | } else if (strcmp(p1, "macvlan.mode") == 0) { | |
2039 | if (netdev->type == LXC_NET_MACVLAN) { | |
2040 | const char *mode; | |
2041 | switch (netdev->priv.macvlan_attr.mode) { | |
2042 | case MACVLAN_MODE_PRIVATE: mode = "private"; break; | |
2043 | case MACVLAN_MODE_VEPA: mode = "vepa"; break; | |
2044 | case MACVLAN_MODE_BRIDGE: mode = "bridge"; break; | |
2045 | default: mode = "(invalid)"; break; | |
2046 | } | |
2047 | strprint(retv, inlen, "%s", mode); | |
2048 | } | |
2049 | } else if (strcmp(p1, "veth.pair") == 0) { | |
11029c02 DE |
2050 | if (netdev->type == LXC_NET_VETH) { |
2051 | strprint(retv, inlen, "%s", | |
2052 | netdev->priv.veth_attr.pair ? | |
2053 | netdev->priv.veth_attr.pair : | |
2054 | netdev->priv.veth_attr.veth1); | |
2055 | } | |
72d0e1cb SG |
2056 | } else if (strcmp(p1, "vlan") == 0) { |
2057 | if (netdev->type == LXC_NET_VLAN) { | |
2058 | strprint(retv, inlen, "%d", netdev->priv.vlan_attr.vid); | |
2059 | } | |
2060 | } else if (strcmp(p1, "ipv4_gateway") == 0) { | |
2061 | if (netdev->ipv4_gateway_auto) { | |
2062 | strprint(retv, inlen, "auto"); | |
2063 | } else if (netdev->ipv4_gateway) { | |
2064 | char buf[INET_ADDRSTRLEN]; | |
2065 | inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf)); | |
2066 | strprint(retv, inlen, "%s", buf); | |
2067 | } | |
2068 | } else if (strcmp(p1, "ipv4") == 0) { | |
2069 | struct lxc_list *it2; | |
2070 | lxc_list_for_each(it2, &netdev->ipv4) { | |
2071 | struct lxc_inetdev *i = it2->elem; | |
2072 | char buf[INET_ADDRSTRLEN]; | |
2073 | inet_ntop(AF_INET, &i->addr, buf, sizeof(buf)); | |
2074 | strprint(retv, inlen, "%s\n", buf); | |
2075 | } | |
2076 | } else if (strcmp(p1, "ipv6_gateway") == 0) { | |
2077 | if (netdev->ipv6_gateway_auto) { | |
2078 | strprint(retv, inlen, "auto"); | |
2079 | } else if (netdev->ipv6_gateway) { | |
2080 | char buf[INET_ADDRSTRLEN]; | |
2081 | inet_ntop(AF_INET, netdev->ipv6_gateway, buf, sizeof(buf)); | |
2082 | strprint(retv, inlen, "%s", buf); | |
2083 | } | |
2084 | } else if (strcmp(p1, "ipv6") == 0) { | |
2085 | struct lxc_list *it2; | |
2086 | lxc_list_for_each(it2, &netdev->ipv6) { | |
2087 | struct lxc_inetdev *i = it2->elem; | |
2088 | char buf[INET_ADDRSTRLEN]; | |
2089 | inet_ntop(AF_INET6, &i->addr, buf, sizeof(buf)); | |
2090 | strprint(retv, inlen, "%s\n", buf); | |
2091 | } | |
2092 | } | |
2093 | return fulllen; | |
2094 | } | |
2095 | ||
2096 | static int lxc_get_item_network(struct lxc_conf *c, char *retv, int inlen) | |
2097 | { | |
2098 | int len, fulllen = 0; | |
2099 | struct lxc_list *it; | |
2100 | ||
2101 | if (!retv) | |
2102 | inlen = 0; | |
2103 | else | |
2104 | memset(retv, 0, inlen); | |
2105 | ||
2106 | lxc_list_for_each(it, &c->network) { | |
2107 | struct lxc_netdev *n = it->elem; | |
2108 | const char *t = lxc_net_type_to_str(n->type); | |
2109 | strprint(retv, inlen, "%s\n", t ? t : "(invalid)"); | |
2110 | } | |
2111 | return fulllen; | |
2112 | } | |
2113 | ||
12a50cc6 DE |
2114 | int lxc_get_config_item(struct lxc_conf *c, const char *key, char *retv, |
2115 | int inlen) | |
72d0e1cb | 2116 | { |
4a85ce2a | 2117 | const char *v = NULL; |
72d0e1cb SG |
2118 | |
2119 | if (strcmp(key, "lxc.mount.entry") == 0) | |
2120 | return lxc_get_mount_entries(c, retv, inlen); | |
b099e9e9 SH |
2121 | else if (strcmp(key, "lxc.mount.auto") == 0) |
2122 | return lxc_get_auto_mounts(c, retv, inlen); | |
72d0e1cb SG |
2123 | else if (strcmp(key, "lxc.mount") == 0) |
2124 | v = c->fstab; | |
2125 | else if (strcmp(key, "lxc.tty") == 0) | |
2126 | return lxc_get_conf_int(c, retv, inlen, c->tty); | |
2127 | else if (strcmp(key, "lxc.pts") == 0) | |
2128 | return lxc_get_conf_int(c, retv, inlen, c->pts); | |
2129 | else if (strcmp(key, "lxc.devttydir") == 0) | |
2130 | v = c->ttydir; | |
2131 | else if (strcmp(key, "lxc.arch") == 0) | |
2132 | return lxc_get_arch_entry(c, retv, inlen); | |
2133 | else if (strcmp(key, "lxc.aa_profile") == 0) | |
fe4de9a6 DE |
2134 | v = c->lsm_aa_profile; |
2135 | else if (strcmp(key, "lxc.se_context") == 0) | |
2136 | v = c->lsm_se_context; | |
4a85ce2a | 2137 | else if (strcmp(key, "lxc.logfile") == 0) |
9ea87d5d | 2138 | v = lxc_log_get_file(); |
4a85ce2a | 2139 | else if (strcmp(key, "lxc.loglevel") == 0) |
9ea87d5d | 2140 | v = lxc_log_priority_to_string(lxc_log_get_level()); |
72d0e1cb SG |
2141 | else if (strcmp(key, "lxc.cgroup") == 0) // all cgroup info |
2142 | return lxc_get_cgroup_entry(c, retv, inlen, "all"); | |
2143 | else if (strncmp(key, "lxc.cgroup.", 11) == 0) // specific cgroup info | |
2144 | return lxc_get_cgroup_entry(c, retv, inlen, key + 11); | |
2145 | else if (strcmp(key, "lxc.utsname") == 0) | |
64fca455 | 2146 | v = c->utsname ? c->utsname->nodename : NULL; |
72d0e1cb SG |
2147 | else if (strcmp(key, "lxc.console") == 0) |
2148 | v = c->console.path; | |
2149 | else if (strcmp(key, "lxc.rootfs.mount") == 0) | |
2150 | v = c->rootfs.mount; | |
a17b1e65 SG |
2151 | else if (strcmp(key, "lxc.rootfs.options") == 0) |
2152 | v = c->rootfs.options; | |
72d0e1cb SG |
2153 | else if (strcmp(key, "lxc.rootfs") == 0) |
2154 | v = c->rootfs.path; | |
2155 | else if (strcmp(key, "lxc.pivotdir") == 0) | |
2156 | v = c->rootfs.pivot; | |
2157 | else if (strcmp(key, "lxc.cap.drop") == 0) | |
2158 | return lxc_get_item_cap_drop(c, retv, inlen); | |
1fb86a7c SH |
2159 | else if (strcmp(key, "lxc.cap.keep") == 0) |
2160 | return lxc_get_item_cap_keep(c, retv, inlen); | |
72d0e1cb SG |
2161 | else if (strncmp(key, "lxc.hook", 8) == 0) |
2162 | return lxc_get_item_hooks(c, retv, inlen, key); | |
2163 | else if (strcmp(key, "lxc.network") == 0) | |
2164 | return lxc_get_item_network(c, retv, inlen); | |
2165 | else if (strncmp(key, "lxc.network.", 12) == 0) | |
2166 | return lxc_get_item_nic(c, retv, inlen, key + 12); | |
ee1e7aa0 SG |
2167 | else if (strcmp(key, "lxc.start.auto") == 0) |
2168 | return lxc_get_conf_int(c, retv, inlen, c->start_auto); | |
2169 | else if (strcmp(key, "lxc.start.delay") == 0) | |
2170 | return lxc_get_conf_int(c, retv, inlen, c->start_delay); | |
2171 | else if (strcmp(key, "lxc.start.order") == 0) | |
2172 | return lxc_get_conf_int(c, retv, inlen, c->start_order); | |
2173 | else if (strcmp(key, "lxc.group") == 0) | |
2174 | return lxc_get_item_groups(c, retv, inlen); | |
58e0f57d SH |
2175 | else if (strcmp(key, "lxc.seccomp") == 0) |
2176 | v = c->seccomp; | |
72d0e1cb SG |
2177 | else return -1; |
2178 | ||
2179 | if (!v) | |
2180 | return 0; | |
2181 | if (retv && inlen >= strlen(v) + 1) | |
2182 | strncpy(retv, v, strlen(v)+1); | |
2183 | return strlen(v); | |
2184 | } | |
2185 | ||
12a50cc6 | 2186 | int lxc_clear_config_item(struct lxc_conf *c, const char *key) |
72d0e1cb SG |
2187 | { |
2188 | if (strcmp(key, "lxc.network") == 0) | |
2189 | return lxc_clear_config_network(c); | |
2190 | else if (strncmp(key, "lxc.network.", 12) == 0) | |
2191 | return lxc_clear_nic(c, key + 12); | |
2192 | else if (strcmp(key, "lxc.cap.drop") == 0) | |
2193 | return lxc_clear_config_caps(c); | |
1fb86a7c SH |
2194 | else if (strcmp(key, "lxc.cap.keep") == 0) |
2195 | return lxc_clear_config_keepcaps(c); | |
72d0e1cb SG |
2196 | else if (strncmp(key, "lxc.cgroup", 10) == 0) |
2197 | return lxc_clear_cgroups(c, key); | |
2198 | else if (strcmp(key, "lxc.mount.entries") == 0) | |
2199 | return lxc_clear_mount_entries(c); | |
b099e9e9 SH |
2200 | else if (strcmp(key, "lxc.mount.auto") == 0) |
2201 | return lxc_clear_automounts(c); | |
17ed13a3 SH |
2202 | else if (strncmp(key, "lxc.hook", 8) == 0) |
2203 | return lxc_clear_hooks(c, key); | |
ee1e7aa0 SG |
2204 | else if (strncmp(key, "lxc.group", 9) == 0) |
2205 | return lxc_clear_groups(c); | |
58e0f57d SH |
2206 | else if (strncmp(key, "lxc.seccomp", 11) == 0) { |
2207 | lxc_seccomp_free(c); | |
2208 | return 0; | |
2209 | } | |
72d0e1cb SG |
2210 | |
2211 | return -1; | |
2212 | } | |
2213 | ||
2214 | /* | |
2215 | * writing out a confile. | |
2216 | */ | |
2217 | void write_config(FILE *fout, struct lxc_conf *c) | |
2218 | { | |
2219 | struct lxc_list *it; | |
2220 | int i; | |
2221 | ||
2222 | if (c->fstab) | |
2223 | fprintf(fout, "lxc.mount = %s\n", c->fstab); | |
2224 | lxc_list_for_each(it, &c->mount_list) { | |
2225 | fprintf(fout, "lxc.mount.entry = %s\n", (char *)it->elem); | |
2226 | } | |
5f62730e CS |
2227 | if (c->auto_mounts & LXC_AUTO_ALL_MASK) { |
2228 | fprintf(fout, "lxc.mount.auto ="); | |
2229 | switch (c->auto_mounts & LXC_AUTO_PROC_MASK) { | |
2230 | case LXC_AUTO_PROC_MIXED: fprintf(fout, " proc:mixed"); break; | |
2231 | case LXC_AUTO_PROC_RW: fprintf(fout, " proc:rw"); break; | |
2232 | default: break; | |
2233 | } | |
2234 | switch (c->auto_mounts & LXC_AUTO_SYS_MASK) { | |
2235 | case LXC_AUTO_SYS_RO: fprintf(fout, " sys:ro"); break; | |
2236 | case LXC_AUTO_SYS_RW: fprintf(fout, " sys:rw"); break; | |
2237 | default: break; | |
2238 | } | |
2239 | switch (c->auto_mounts & LXC_AUTO_CGROUP_MASK) { | |
2240 | case LXC_AUTO_CGROUP_MIXED: fprintf(fout, " cgroup:mixed"); break; | |
2241 | case LXC_AUTO_CGROUP_RO: fprintf(fout, " cgroup:ro"); break; | |
2242 | case LXC_AUTO_CGROUP_RW: fprintf(fout, " cgroup:rw"); break; | |
2243 | case LXC_AUTO_CGROUP_FULL_MIXED: fprintf(fout, " cgroup-full:mixed"); break; | |
2244 | case LXC_AUTO_CGROUP_FULL_RO: fprintf(fout, " cgroup-full:ro"); break; | |
2245 | case LXC_AUTO_CGROUP_FULL_RW: fprintf(fout, " cgroup-full:rw"); break; | |
2246 | default: break; | |
2247 | } | |
2248 | fprintf(fout, "\n"); | |
2249 | } | |
72d0e1cb SG |
2250 | if (c->tty) |
2251 | fprintf(fout, "lxc.tty = %d\n", c->tty); | |
2252 | if (c->pts) | |
2253 | fprintf(fout, "lxc.pts = %d\n", c->pts); | |
2254 | if (c->ttydir) | |
2255 | fprintf(fout, "lxc.devttydir = %s\n", c->ttydir); | |
f0f1d8c0 DE |
2256 | if (c->haltsignal) |
2257 | fprintf(fout, "lxc.haltsignal = SIG%s\n", sig_name(c->haltsignal)); | |
2258 | if (c->stopsignal) | |
2259 | fprintf(fout, "lxc.stopsignal = SIG%s\n", sig_name(c->stopsignal)); | |
6ff05e18 | 2260 | #if HAVE_SYS_PERSONALITY_H |
72d0e1cb SG |
2261 | switch(c->personality) { |
2262 | case PER_LINUX32: fprintf(fout, "lxc.arch = x86\n"); break; | |
2263 | case PER_LINUX: fprintf(fout, "lxc.arch = x86_64\n"); break; | |
2264 | default: break; | |
2265 | } | |
6ff05e18 | 2266 | #endif |
fe4de9a6 DE |
2267 | if (c->lsm_aa_profile) |
2268 | fprintf(fout, "lxc.aa_profile = %s\n", c->lsm_aa_profile); | |
2269 | if (c->lsm_se_context) | |
2270 | fprintf(fout, "lxc.se_context = %s\n", c->lsm_se_context); | |
df2d4205 DE |
2271 | if (c->seccomp) |
2272 | fprintf(fout, "lxc.seccomp = %s\n", c->seccomp); | |
2273 | if (c->kmsg == 0) | |
2274 | fprintf(fout, "lxc.kmsg = 0\n"); | |
b9fdb692 | 2275 | if (c->autodev > 0) |
df2d4205 | 2276 | fprintf(fout, "lxc.autodev = 1\n"); |
b40a606e SH |
2277 | if (c->loglevel != LXC_LOG_PRIORITY_NOTSET) |
2278 | fprintf(fout, "lxc.loglevel = %s\n", lxc_log_priority_to_string(c->loglevel)); | |
2279 | if (c->logfile) | |
2280 | fprintf(fout, "lxc.logfile = %s\n", c->logfile); | |
72d0e1cb SG |
2281 | lxc_list_for_each(it, &c->cgroup) { |
2282 | struct lxc_cgroup *cg = it->elem; | |
2283 | fprintf(fout, "lxc.cgroup.%s = %s\n", cg->subsystem, cg->value); | |
2284 | } | |
2285 | if (c->utsname) | |
2286 | fprintf(fout, "lxc.utsname = %s\n", c->utsname->nodename); | |
2287 | lxc_list_for_each(it, &c->network) { | |
2288 | struct lxc_netdev *n = it->elem; | |
2289 | const char *t = lxc_net_type_to_str(n->type); | |
2290 | struct lxc_list *it2; | |
2291 | fprintf(fout, "lxc.network.type = %s\n", t ? t : "(invalid)"); | |
2292 | if (n->flags & IFF_UP) | |
2293 | fprintf(fout, "lxc.network.flags = up\n"); | |
2294 | if (n->link) | |
2295 | fprintf(fout, "lxc.network.link = %s\n", n->link); | |
2296 | if (n->name) | |
2297 | fprintf(fout, "lxc.network.name = %s\n", n->name); | |
2298 | if (n->type == LXC_NET_MACVLAN) { | |
2299 | const char *mode; | |
2300 | switch (n->priv.macvlan_attr.mode) { | |
2301 | case MACVLAN_MODE_PRIVATE: mode = "private"; break; | |
2302 | case MACVLAN_MODE_VEPA: mode = "vepa"; break; | |
2303 | case MACVLAN_MODE_BRIDGE: mode = "bridge"; break; | |
2304 | default: mode = "(invalid)"; break; | |
2305 | } | |
2306 | fprintf(fout, "lxc.network.macvlan.mode = %s\n", mode); | |
2307 | } else if (n->type == LXC_NET_VETH) { | |
2308 | if (n->priv.veth_attr.pair) | |
2309 | fprintf(fout, "lxc.network.veth.pair = %s\n", | |
2310 | n->priv.veth_attr.pair); | |
2311 | } else if (n->type == LXC_NET_VLAN) { | |
2312 | fprintf(fout, "lxc.network.vlan.id = %d\n", n->priv.vlan_attr.vid); | |
2313 | } | |
2314 | if (n->upscript) | |
2315 | fprintf(fout, "lxc.network.script.up = %s\n", n->upscript); | |
8fc8295a DE |
2316 | if (n->downscript) |
2317 | fprintf(fout, "lxc.network.script.down = %s\n", n->downscript); | |
72d0e1cb SG |
2318 | if (n->hwaddr) |
2319 | fprintf(fout, "lxc.network.hwaddr = %s\n", n->hwaddr); | |
2320 | if (n->mtu) | |
2321 | fprintf(fout, "lxc.network.mtu = %s\n", n->mtu); | |
2322 | if (n->ipv4_gateway_auto) | |
2323 | fprintf(fout, "lxc.network.ipv4.gateway = auto\n"); | |
2324 | else if (n->ipv4_gateway) { | |
2325 | char buf[INET_ADDRSTRLEN]; | |
2326 | inet_ntop(AF_INET, n->ipv4_gateway, buf, sizeof(buf)); | |
2327 | fprintf(fout, "lxc.network.ipv4.gateway = %s\n", buf); | |
2328 | } | |
2329 | lxc_list_for_each(it2, &n->ipv4) { | |
2330 | struct lxc_inetdev *i = it2->elem; | |
2331 | char buf[INET_ADDRSTRLEN]; | |
2332 | inet_ntop(AF_INET, &i->addr, buf, sizeof(buf)); | |
be660853 SG |
2333 | fprintf(fout, "lxc.network.ipv4 = %s", buf); |
2334 | ||
89addaa7 | 2335 | if (i->prefix) |
be660853 SG |
2336 | fprintf(fout, "/%d", i->prefix); |
2337 | ||
2338 | if (i->bcast.s_addr != (i->addr.s_addr | | |
2339 | htonl(INADDR_BROADCAST >> i->prefix))) { | |
2340 | ||
2341 | inet_ntop(AF_INET, &i->bcast, buf, sizeof(buf)); | |
2342 | fprintf(fout, " %s\n", buf); | |
2343 | } | |
89addaa7 | 2344 | else |
be660853 | 2345 | fprintf(fout, "\n"); |
72d0e1cb SG |
2346 | } |
2347 | if (n->ipv6_gateway_auto) | |
2348 | fprintf(fout, "lxc.network.ipv6.gateway = auto\n"); | |
2349 | else if (n->ipv6_gateway) { | |
2350 | char buf[INET6_ADDRSTRLEN]; | |
2351 | inet_ntop(AF_INET6, n->ipv6_gateway, buf, sizeof(buf)); | |
2352 | fprintf(fout, "lxc.network.ipv6.gateway = %s\n", buf); | |
2353 | } | |
2354 | lxc_list_for_each(it2, &n->ipv6) { | |
2355 | struct lxc_inet6dev *i = it2->elem; | |
2356 | char buf[INET6_ADDRSTRLEN]; | |
64994c03 | 2357 | inet_ntop(AF_INET6, &i->addr, buf, sizeof(buf)); |
89addaa7 RV |
2358 | if (i->prefix) |
2359 | fprintf(fout, "lxc.network.ipv6 = %s/%d\n", | |
2360 | buf, i->prefix); | |
2361 | else | |
2362 | fprintf(fout, "lxc.network.ipv6 = %s\n", buf); | |
72d0e1cb SG |
2363 | } |
2364 | } | |
2365 | lxc_list_for_each(it, &c->caps) | |
2366 | fprintf(fout, "lxc.cap.drop = %s\n", (char *)it->elem); | |
1fb86a7c SH |
2367 | lxc_list_for_each(it, &c->keepcaps) |
2368 | fprintf(fout, "lxc.cap.keep = %s\n", (char *)it->elem); | |
27c27d73 SH |
2369 | lxc_list_for_each(it, &c->id_map) { |
2370 | struct id_map *idmap = it->elem; | |
2371 | fprintf(fout, "lxc.id_map = %c %lu %lu %lu\n", | |
2372 | idmap->idtype == ID_TYPE_UID ? 'u' : 'g', idmap->nsid, | |
2373 | idmap->hostid, idmap->range); | |
2374 | } | |
72d0e1cb SG |
2375 | for (i=0; i<NUM_LXC_HOOKS; i++) { |
2376 | lxc_list_for_each(it, &c->hooks[i]) | |
2377 | fprintf(fout, "lxc.hook.%s = %s\n", | |
2378 | lxchook_names[i], (char *)it->elem); | |
2379 | } | |
2380 | if (c->console.path) | |
2381 | fprintf(fout, "lxc.console = %s\n", c->console.path); | |
2382 | if (c->rootfs.path) | |
2383 | fprintf(fout, "lxc.rootfs = %s\n", c->rootfs.path); | |
2384 | if (c->rootfs.mount && strcmp(c->rootfs.mount, LXCROOTFSMOUNT) != 0) | |
2385 | fprintf(fout, "lxc.rootfs.mount = %s\n", c->rootfs.mount); | |
a17b1e65 SG |
2386 | if (c->rootfs.options) |
2387 | fprintf(fout, "lxc.rootfs.options = %s\n", c->rootfs.options); | |
72d0e1cb SG |
2388 | if (c->rootfs.pivot) |
2389 | fprintf(fout, "lxc.pivotdir = %s\n", c->rootfs.pivot); | |
df2d4205 DE |
2390 | if (c->start_auto) |
2391 | fprintf(fout, "lxc.start.auto = %d\n", c->start_auto); | |
2392 | if (c->start_delay) | |
2393 | fprintf(fout, "lxc.start.delay = %d\n", c->start_delay); | |
2394 | if (c->start_order) | |
2395 | fprintf(fout, "lxc.start.order = %d\n", c->start_order); | |
2396 | lxc_list_for_each(it, &c->groups) | |
2397 | fprintf(fout, "lxc.group = %s\n", (char *)it->elem); | |
72d0e1cb | 2398 | } |