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c2cc9f0a | 1 | /* |
2 | * lxc: linux Container library | |
3 | * | |
4 | * (C) Copyright IBM Corp. 2007, 2008 | |
5 | * | |
6 | * Authors: | |
7 | * Daniel Lezcano <dlezcano at fr.ibm.com> | |
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 | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
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> |
63376d7d | 30 | #include <sys/stat.h> |
c2cc9f0a | 31 | #include <sys/types.h> |
32 | #include <sys/param.h> | |
33 | #include <sys/utsname.h> | |
34 | #include <arpa/inet.h> | |
35 | #include <netinet/in.h> | |
36 | #include <net/if.h> | |
37 | ||
b2718c72 | 38 | #include "parse.h" |
6ff05e18 | 39 | #include "config.h" |
525f0002 | 40 | #include "confile.h" |
26c39028 | 41 | #include "utils.h" |
c2cc9f0a | 42 | |
36eb9bde | 43 | #include <lxc/log.h> |
00b3c2e2 | 44 | #include <lxc/conf.h> |
72d0e1cb | 45 | #include "network.h" |
36eb9bde | 46 | |
6ff05e18 SG |
47 | #if HAVE_SYS_PERSONALITY_H |
48 | #include <sys/personality.h> | |
49 | #endif | |
50 | ||
36eb9bde | 51 | lxc_log_define(lxc_confile, lxc); |
576f946d | 52 | |
12a50cc6 DE |
53 | static int config_personality(const char *, const char *, struct lxc_conf *); |
54 | static int config_pts(const char *, const char *, struct lxc_conf *); | |
55 | static int config_tty(const char *, const char *, struct lxc_conf *); | |
56 | static int config_ttydir(const char *, const char *, struct lxc_conf *); | |
e075f5d9 | 57 | #if HAVE_APPARMOR |
12a50cc6 | 58 | static int config_aa_profile(const char *, const char *, struct lxc_conf *); |
e075f5d9 | 59 | #endif |
12a50cc6 | 60 | static int config_cgroup(const char *, const char *, struct lxc_conf *); |
4a85ce2a SH |
61 | static int config_loglevel(const char *, const char *, struct lxc_conf *); |
62 | static int config_logfile(const char *, const char *, struct lxc_conf *); | |
12a50cc6 DE |
63 | static int config_mount(const char *, const char *, struct lxc_conf *); |
64 | static int config_rootfs(const char *, const char *, struct lxc_conf *); | |
65 | static int config_rootfs_mount(const char *, const char *, struct lxc_conf *); | |
66 | static int config_pivotdir(const char *, const char *, struct lxc_conf *); | |
67 | static int config_utsname(const char *, const char *, struct lxc_conf *); | |
68 | static int config_hook(const char *, const char *, struct lxc_conf *lxc_conf); | |
69 | static int config_network_type(const char *, const char *, struct lxc_conf *); | |
70 | static int config_network_flags(const char *, const char *, struct lxc_conf *); | |
71 | static int config_network_link(const char *, const char *, struct lxc_conf *); | |
72 | static int config_network_name(const char *, const char *, struct lxc_conf *); | |
73 | static int config_network_veth_pair(const char *, const char *, struct lxc_conf *); | |
74 | static int config_network_macvlan_mode(const char *, const char *, struct lxc_conf *); | |
75 | static int config_network_hwaddr(const char *, const char *, struct lxc_conf *); | |
76 | static int config_network_vlan_id(const char *, const char *, struct lxc_conf *); | |
77 | static int config_network_mtu(const char *, const char *, struct lxc_conf *); | |
78 | static int config_network_ipv4(const char *, const char *, struct lxc_conf *); | |
79 | static int config_network_ipv4_gateway(const char *, const char *, struct lxc_conf *); | |
80 | static int config_network_script(const char *, const char *, struct lxc_conf *); | |
81 | static int config_network_ipv6(const char *, const char *, struct lxc_conf *); | |
82 | static int config_network_ipv6_gateway(const char *, const char *, struct lxc_conf *); | |
83 | static int config_cap_drop(const char *, const char *, struct lxc_conf *); | |
84 | static int config_console(const char *, const char *, struct lxc_conf *); | |
85 | static int config_seccomp(const char *, const char *, struct lxc_conf *); | |
86 | static int config_includefile(const char *, const char *, struct lxc_conf *); | |
87 | static int config_network_nic(const char *, const char *, struct lxc_conf *); | |
88 | static int config_autodev(const char *, const char *, struct lxc_conf *); | |
c2cc9f0a | 89 | |
72d0e1cb | 90 | static struct lxc_config_t config[] = { |
576f946d | 91 | |
cccc74b5 | 92 | { "lxc.arch", config_personality }, |
e892973e DL |
93 | { "lxc.pts", config_pts }, |
94 | { "lxc.tty", config_tty }, | |
7c6ef2a2 | 95 | { "lxc.devttydir", config_ttydir }, |
e075f5d9 SH |
96 | #if HAVE_APPARMOR |
97 | { "lxc.aa_profile", config_aa_profile }, | |
98 | #endif | |
e892973e | 99 | { "lxc.cgroup", config_cgroup }, |
4a85ce2a SH |
100 | { "lxc.loglevel", config_loglevel }, |
101 | { "lxc.logfile", config_logfile }, | |
e892973e | 102 | { "lxc.mount", config_mount }, |
23b7ea69 | 103 | { "lxc.rootfs.mount", config_rootfs_mount }, |
e892973e | 104 | { "lxc.rootfs", config_rootfs }, |
bf601689 | 105 | { "lxc.pivotdir", config_pivotdir }, |
e892973e | 106 | { "lxc.utsname", config_utsname }, |
26ddeedd | 107 | { "lxc.hook.pre-start", config_hook }, |
12a50cc6 | 108 | { "lxc.hook.pre-mount", config_hook }, |
26ddeedd SH |
109 | { "lxc.hook.mount", config_hook }, |
110 | { "lxc.hook.start", config_hook }, | |
111 | { "lxc.hook.post-stop", config_hook }, | |
e892973e DL |
112 | { "lxc.network.type", config_network_type }, |
113 | { "lxc.network.flags", config_network_flags }, | |
114 | { "lxc.network.link", config_network_link }, | |
115 | { "lxc.network.name", config_network_name }, | |
116 | { "lxc.network.macvlan.mode", config_network_macvlan_mode }, | |
117 | { "lxc.network.veth.pair", config_network_veth_pair }, | |
e3b4c4c4 | 118 | { "lxc.network.script.up", config_network_script }, |
74a2b586 | 119 | { "lxc.network.script.down", config_network_script }, |
e892973e DL |
120 | { "lxc.network.hwaddr", config_network_hwaddr }, |
121 | { "lxc.network.mtu", config_network_mtu }, | |
122 | { "lxc.network.vlan.id", config_network_vlan_id }, | |
f8fee0e2 | 123 | { "lxc.network.ipv4.gateway", config_network_ipv4_gateway }, |
e892973e | 124 | { "lxc.network.ipv4", config_network_ipv4 }, |
f8fee0e2 | 125 | { "lxc.network.ipv6.gateway", config_network_ipv6_gateway }, |
e892973e | 126 | { "lxc.network.ipv6", config_network_ipv6 }, |
72d0e1cb SG |
127 | /* config_network_nic must come after all other 'lxc.network.*' entries */ |
128 | { "lxc.network.", config_network_nic }, | |
81810dd1 | 129 | { "lxc.cap.drop", config_cap_drop }, |
63376d7d | 130 | { "lxc.console", config_console }, |
8f2c3a70 | 131 | { "lxc.seccomp", config_seccomp }, |
09ad6246 | 132 | { "lxc.include", config_includefile }, |
c6883f38 | 133 | { "lxc.autodev", config_autodev }, |
c2cc9f0a | 134 | }; |
135 | ||
72d0e1cb | 136 | static const size_t config_size = sizeof(config)/sizeof(struct lxc_config_t); |
c2cc9f0a | 137 | |
72d0e1cb | 138 | extern struct lxc_config_t *lxc_getconfig(const char *key) |
c2cc9f0a | 139 | { |
140 | int i; | |
141 | ||
142 | for (i = 0; i < config_size; i++) | |
a871ff6b | 143 | if (!strncmp(config[i].name, key, |
c2cc9f0a | 144 | strlen(config[i].name))) |
145 | return &config[i]; | |
146 | return NULL; | |
147 | } | |
148 | ||
72d0e1cb SG |
149 | #define strprint(str, inlen, ...) \ |
150 | do { \ | |
151 | len = snprintf(str, inlen, ##__VA_ARGS__); \ | |
152 | if (len < 0) { SYSERROR("snprintf"); return -1; }; \ | |
153 | fulllen += len; \ | |
154 | if (inlen > 0) { \ | |
155 | if (str) str += len; \ | |
156 | inlen -= len; \ | |
157 | if (inlen < 0) inlen = 0; \ | |
158 | } \ | |
159 | } while (0); | |
160 | ||
161 | int lxc_listconfigs(char *retv, int inlen) | |
162 | { | |
163 | int i, fulllen = 0, len; | |
164 | ||
165 | if (!retv) | |
166 | inlen = 0; | |
167 | else | |
168 | memset(retv, 0, inlen); | |
169 | for (i = 0; i < config_size; i++) { | |
170 | char *s = config[i].name; | |
171 | if (s[strlen(s)-1] == '.') | |
172 | continue; | |
173 | strprint(retv, inlen, "%s\n", s); | |
174 | } | |
175 | return fulllen; | |
176 | } | |
177 | ||
178 | /* | |
179 | * config entry is something like "lxc.network.0.ipv4" | |
180 | * the key 'lxc.network.' was found. So we make sure next | |
181 | * comes an integer, find the right callback (by rewriting | |
182 | * the key), and call it. | |
183 | */ | |
12a50cc6 | 184 | static int config_network_nic(const char *key, const char *value, |
72d0e1cb SG |
185 | struct lxc_conf *lxc_conf) |
186 | { | |
187 | char *copy = strdup(key), *p; | |
188 | int ret = -1; | |
189 | struct lxc_config_t *config; | |
190 | ||
191 | if (!copy) { | |
192 | SYSERROR("failed to allocate memory"); | |
193 | return -1; | |
194 | } | |
195 | /* | |
196 | * ok we know that to get here we've got "lxc.network." | |
197 | * and it isn't any of the other network entries. So | |
198 | * after the second . should come an integer (# of defined | |
199 | * nic) followed by a valid entry. | |
200 | */ | |
201 | if (*(key+12) < '0' || *(key+12) > '9') | |
202 | goto out; | |
203 | p = index(key+12, '.'); | |
204 | if (!p) | |
205 | goto out; | |
206 | strcpy(copy+12, p+1); | |
207 | config = lxc_getconfig(copy); | |
208 | if (!config) { | |
209 | ERROR("unknown key %s", key); | |
210 | goto out; | |
211 | } | |
212 | ret = config->cb(key, value, lxc_conf); | |
213 | ||
214 | out: | |
215 | free(copy); | |
216 | return ret; | |
217 | } | |
218 | ||
12a50cc6 | 219 | static int config_network_type(const char *key, const char *value, |
e892973e | 220 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 221 | { |
5f4535a3 | 222 | struct lxc_list *network = &lxc_conf->network; |
c2cc9f0a | 223 | struct lxc_netdev *netdev; |
224 | struct lxc_list *list; | |
c2cc9f0a | 225 | |
226 | netdev = malloc(sizeof(*netdev)); | |
227 | if (!netdev) { | |
36eb9bde | 228 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 229 | return -1; |
230 | } | |
231 | ||
82d5ae15 | 232 | memset(netdev, 0, sizeof(*netdev)); |
c2cc9f0a | 233 | lxc_list_init(&netdev->ipv4); |
234 | lxc_list_init(&netdev->ipv6); | |
c2cc9f0a | 235 | |
236 | list = malloc(sizeof(*list)); | |
237 | if (!list) { | |
36eb9bde | 238 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 239 | return -1; |
240 | } | |
241 | ||
242 | lxc_list_init(list); | |
5f4535a3 | 243 | list->elem = netdev; |
c2cc9f0a | 244 | |
bac89583 | 245 | lxc_list_add_tail(network, list); |
a871ff6b | 246 | |
c2cc9f0a | 247 | if (!strcmp(value, "veth")) |
24654103 | 248 | netdev->type = LXC_NET_VETH; |
c2cc9f0a | 249 | else if (!strcmp(value, "macvlan")) |
24654103 | 250 | netdev->type = LXC_NET_MACVLAN; |
26c39028 | 251 | else if (!strcmp(value, "vlan")) |
24654103 | 252 | netdev->type = LXC_NET_VLAN; |
c2cc9f0a | 253 | else if (!strcmp(value, "phys")) |
24654103 | 254 | netdev->type = LXC_NET_PHYS; |
5f58350a | 255 | else if (!strcmp(value, "empty")) |
24654103 | 256 | netdev->type = LXC_NET_EMPTY; |
c2cc9f0a | 257 | else { |
36eb9bde | 258 | ERROR("invalid network type %s", value); |
c2cc9f0a | 259 | return -1; |
260 | } | |
261 | return 0; | |
262 | } | |
263 | ||
a059591e DL |
264 | static int config_ip_prefix(struct in_addr *addr) |
265 | { | |
266 | if (IN_CLASSA(addr->s_addr)) | |
267 | return 32 - IN_CLASSA_NSHIFT; | |
268 | if (IN_CLASSB(addr->s_addr)) | |
269 | return 32 - IN_CLASSB_NSHIFT; | |
270 | if (IN_CLASSC(addr->s_addr)) | |
271 | return 32 - IN_CLASSC_NSHIFT; | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
72d0e1cb SG |
276 | /* |
277 | * if you have p="lxc.network.0.link", pass it p+12 | |
278 | * to get back '0' (the index of the nic) | |
279 | */ | |
280 | static int get_network_netdev_idx(const char *key) | |
281 | { | |
282 | int ret, idx; | |
283 | ||
284 | if (*key < '0' || *key > '9') | |
285 | return -1; | |
286 | ret = sscanf(key, "%d", &idx); | |
287 | if (ret != 1) | |
288 | return -1; | |
289 | return idx; | |
290 | } | |
291 | ||
292 | /* | |
293 | * if you have p="lxc.network.0", pass this p+12 and it will return | |
294 | * the netdev of the first configured nic | |
295 | */ | |
296 | static struct lxc_netdev *get_netdev_from_key(const char *key, | |
297 | struct lxc_list *network) | |
298 | { | |
299 | int i = 0, idx = get_network_netdev_idx(key); | |
300 | struct lxc_netdev *netdev = NULL; | |
301 | struct lxc_list *it; | |
302 | if (idx == -1) | |
303 | return NULL; | |
304 | lxc_list_for_each(it, network) { | |
305 | if (idx == i++) { | |
306 | netdev = it->elem; | |
307 | break; | |
308 | } | |
309 | } | |
310 | return netdev; | |
311 | } | |
312 | ||
12a50cc6 DE |
313 | extern int lxc_list_nicconfigs(struct lxc_conf *c, const char *key, |
314 | char *retv, int inlen) | |
72d0e1cb SG |
315 | { |
316 | struct lxc_netdev *netdev; | |
317 | int fulllen = 0, len; | |
318 | ||
319 | netdev = get_netdev_from_key(key+12, &c->network); | |
320 | if (!netdev) | |
321 | return -1; | |
322 | ||
323 | if (!retv) | |
324 | inlen = 0; | |
325 | else | |
326 | memset(retv, 0, inlen); | |
327 | ||
328 | strprint(retv, inlen, "script.up\n"); | |
329 | if (netdev->type != LXC_NET_EMPTY) { | |
330 | strprint(retv, inlen, "flags\n"); | |
331 | strprint(retv, inlen, "link\n"); | |
332 | strprint(retv, inlen, "name\n"); | |
333 | strprint(retv, inlen, "hwaddr\n"); | |
334 | strprint(retv, inlen, "mtu\n"); | |
335 | strprint(retv, inlen, "ipv6\n"); | |
336 | strprint(retv, inlen, "ipv6_gateway\n"); | |
337 | strprint(retv, inlen, "ipv4\n"); | |
338 | strprint(retv, inlen, "ipv4_gateway\n"); | |
339 | } | |
340 | switch(netdev->type) { | |
341 | case LXC_NET_VETH: | |
342 | strprint(retv, inlen, "veth.pair\n"); | |
343 | break; | |
344 | case LXC_NET_MACVLAN: | |
345 | strprint(retv, inlen, "macvlan.mode\n"); | |
346 | break; | |
347 | case LXC_NET_VLAN: | |
348 | strprint(retv, inlen, "vlan.id\n"); | |
349 | break; | |
350 | case LXC_NET_PHYS: | |
351 | break; | |
352 | } | |
353 | return fulllen; | |
354 | } | |
355 | ||
16950ecb DL |
356 | static struct lxc_netdev *network_netdev(const char *key, const char *value, |
357 | struct lxc_list *network) | |
c2cc9f0a | 358 | { |
72d0e1cb | 359 | struct lxc_netdev *netdev = NULL; |
c2cc9f0a | 360 | |
5f4535a3 | 361 | if (lxc_list_empty(network)) { |
16950ecb DL |
362 | ERROR("network is not created for '%s' = '%s' option", |
363 | key, value); | |
33c945e0 | 364 | return NULL; |
c2cc9f0a | 365 | } |
366 | ||
72d0e1cb SG |
367 | if (get_network_netdev_idx(key+12) == -1) |
368 | netdev = lxc_list_last_elem(network); | |
369 | else | |
370 | netdev = get_netdev_from_key(key+12, network); | |
371 | ||
5f4535a3 | 372 | if (!netdev) { |
16950ecb DL |
373 | ERROR("no network device defined for '%s' = '%s' option", |
374 | key, value); | |
33c945e0 | 375 | return NULL; |
c2cc9f0a | 376 | } |
377 | ||
33c945e0 | 378 | return netdev; |
c2cc9f0a | 379 | } |
380 | ||
12a50cc6 | 381 | static int network_ifname(char **valuep, const char *value) |
c2cc9f0a | 382 | { |
bf83c5b9 | 383 | if (strlen(value) >= IFNAMSIZ) { |
5480b13b DL |
384 | ERROR("interface name '%s' too long (>%d)\n", |
385 | value, IFNAMSIZ - 1); | |
c2cc9f0a | 386 | return -1; |
387 | } | |
388 | ||
33c945e0 | 389 | *valuep = strdup(value); |
16950ecb DL |
390 | if (!*valuep) { |
391 | ERROR("failed to dup string '%s'", value); | |
392 | return -1; | |
393 | } | |
33c945e0 | 394 | |
c2cc9f0a | 395 | return 0; |
396 | } | |
397 | ||
e892973e DL |
398 | #ifndef MACVLAN_MODE_PRIVATE |
399 | # define MACVLAN_MODE_PRIVATE 1 | |
400 | #endif | |
401 | ||
402 | #ifndef MACVLAN_MODE_VEPA | |
403 | # define MACVLAN_MODE_VEPA 2 | |
404 | #endif | |
405 | ||
406 | #ifndef MACVLAN_MODE_BRIDGE | |
407 | # define MACVLAN_MODE_BRIDGE 4 | |
408 | #endif | |
409 | ||
12a50cc6 | 410 | static int macvlan_mode(int *valuep, const char *value) |
e892973e DL |
411 | { |
412 | struct mc_mode { | |
413 | char *name; | |
414 | int mode; | |
415 | } m[] = { | |
416 | { "private", MACVLAN_MODE_PRIVATE }, | |
417 | { "vepa", MACVLAN_MODE_VEPA }, | |
418 | { "bridge", MACVLAN_MODE_BRIDGE }, | |
419 | }; | |
420 | ||
421 | int i; | |
422 | ||
423 | for (i = 0; i < sizeof(m)/sizeof(m[0]); i++) { | |
424 | if (strcmp(m[i].name, value)) | |
425 | continue; | |
426 | ||
427 | *valuep = m[i].mode; | |
428 | return 0; | |
429 | } | |
430 | ||
431 | return -1; | |
432 | } | |
433 | ||
12a50cc6 | 434 | static int config_network_flags(const char *key, const char *value, |
33c945e0 | 435 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 436 | { |
c2cc9f0a | 437 | struct lxc_netdev *netdev; |
438 | ||
16950ecb | 439 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 440 | if (!netdev) |
c2cc9f0a | 441 | return -1; |
c2cc9f0a | 442 | |
33c945e0 | 443 | netdev->flags |= IFF_UP; |
c2cc9f0a | 444 | |
33c945e0 MT |
445 | return 0; |
446 | } | |
447 | ||
12a50cc6 | 448 | static int config_network_link(const char *key, const char *value, |
33c945e0 MT |
449 | struct lxc_conf *lxc_conf) |
450 | { | |
451 | struct lxc_netdev *netdev; | |
452 | ||
16950ecb | 453 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 454 | if (!netdev) |
c2cc9f0a | 455 | return -1; |
c2cc9f0a | 456 | |
33c945e0 | 457 | return network_ifname(&netdev->link, value); |
c2cc9f0a | 458 | } |
459 | ||
12a50cc6 | 460 | static int config_network_name(const char *key, const char *value, |
33c945e0 | 461 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 462 | { |
c2cc9f0a | 463 | struct lxc_netdev *netdev; |
464 | ||
16950ecb | 465 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 466 | if (!netdev) |
c2cc9f0a | 467 | return -1; |
c2cc9f0a | 468 | |
33c945e0 MT |
469 | return network_ifname(&netdev->name, value); |
470 | } | |
471 | ||
12a50cc6 | 472 | static int config_network_veth_pair(const char *key, const char *value, |
e892973e DL |
473 | struct lxc_conf *lxc_conf) |
474 | { | |
475 | struct lxc_netdev *netdev; | |
476 | ||
477 | netdev = network_netdev(key, value, &lxc_conf->network); | |
478 | if (!netdev) | |
479 | return -1; | |
480 | ||
481 | return network_ifname(&netdev->priv.veth_attr.pair, value); | |
482 | } | |
483 | ||
12a50cc6 | 484 | static int config_network_macvlan_mode(const char *key, const char *value, |
e892973e | 485 | struct lxc_conf *lxc_conf) |
8634bc19 MT |
486 | { |
487 | struct lxc_netdev *netdev; | |
488 | ||
489 | netdev = network_netdev(key, value, &lxc_conf->network); | |
490 | if (!netdev) | |
491 | return -1; | |
492 | ||
e892973e | 493 | return macvlan_mode(&netdev->priv.macvlan_attr.mode, value); |
8634bc19 MT |
494 | } |
495 | ||
12a50cc6 | 496 | static int config_network_hwaddr(const char *key, const char *value, |
33c945e0 MT |
497 | struct lxc_conf *lxc_conf) |
498 | { | |
499 | struct lxc_netdev *netdev; | |
d95db067 | 500 | char *hwaddr; |
33c945e0 | 501 | |
16950ecb | 502 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 503 | if (!netdev) |
c2cc9f0a | 504 | return -1; |
c2cc9f0a | 505 | |
d95db067 DE |
506 | hwaddr = strdup(value); |
507 | if (!hwaddr) { | |
16950ecb DL |
508 | SYSERROR("failed to dup string '%s'", value); |
509 | return -1; | |
510 | } | |
33c945e0 | 511 | |
d95db067 DE |
512 | if (netdev->hwaddr) |
513 | free(netdev->hwaddr); | |
514 | netdev->hwaddr = hwaddr; | |
c2cc9f0a | 515 | return 0; |
516 | } | |
517 | ||
12a50cc6 | 518 | static int config_network_vlan_id(const char *key, const char *value, |
26c39028 JHS |
519 | struct lxc_conf *lxc_conf) |
520 | { | |
521 | struct lxc_netdev *netdev; | |
522 | ||
523 | netdev = network_netdev(key, value, &lxc_conf->network); | |
524 | if (!netdev) | |
525 | return -1; | |
526 | ||
f6cc1de1 | 527 | if (get_u16(&netdev->priv.vlan_attr.vid, value, 0)) |
26c39028 JHS |
528 | return -1; |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
12a50cc6 | 533 | static int config_network_mtu(const char *key, const char *value, |
33c945e0 | 534 | struct lxc_conf *lxc_conf) |
442cbbe6 | 535 | { |
442cbbe6 | 536 | struct lxc_netdev *netdev; |
d95db067 | 537 | char *mtu; |
442cbbe6 | 538 | |
16950ecb | 539 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 540 | if (!netdev) |
442cbbe6 | 541 | return -1; |
442cbbe6 | 542 | |
d95db067 DE |
543 | mtu = strdup(value); |
544 | if (!mtu) { | |
16950ecb DL |
545 | SYSERROR("failed to dup string '%s'", value); |
546 | return -1; | |
547 | } | |
33c945e0 | 548 | |
d95db067 DE |
549 | if (netdev->mtu) |
550 | free(netdev->mtu); | |
551 | netdev->mtu = mtu; | |
442cbbe6 TR |
552 | return 0; |
553 | } | |
554 | ||
12a50cc6 | 555 | static int config_network_ipv4(const char *key, const char *value, |
33c945e0 | 556 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 557 | { |
c2cc9f0a | 558 | struct lxc_netdev *netdev; |
33c945e0 | 559 | struct lxc_inetdev *inetdev; |
c2cc9f0a | 560 | struct lxc_list *list; |
561 | char *cursor, *slash, *addr = NULL, *bcast = NULL, *prefix = NULL; | |
562 | ||
16950ecb | 563 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 564 | if (!netdev) |
c2cc9f0a | 565 | return -1; |
c2cc9f0a | 566 | |
567 | inetdev = malloc(sizeof(*inetdev)); | |
568 | if (!inetdev) { | |
36eb9bde | 569 | SYSERROR("failed to allocate ipv4 address"); |
c2cc9f0a | 570 | return -1; |
571 | } | |
572 | memset(inetdev, 0, sizeof(*inetdev)); | |
573 | ||
574 | list = malloc(sizeof(*list)); | |
575 | if (!list) { | |
36eb9bde | 576 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 577 | return -1; |
578 | } | |
579 | ||
580 | lxc_list_init(list); | |
581 | list->elem = inetdev; | |
582 | ||
956edc54 SG |
583 | addr = strdup(value); |
584 | if (!addr) { | |
585 | ERROR("no address specified"); | |
586 | return -1; | |
587 | } | |
c2cc9f0a | 588 | |
589 | cursor = strstr(addr, " "); | |
590 | if (cursor) { | |
591 | *cursor = '\0'; | |
592 | bcast = cursor + 1; | |
593 | } | |
594 | ||
595 | slash = strstr(addr, "/"); | |
596 | if (slash) { | |
597 | *slash = '\0'; | |
598 | prefix = slash + 1; | |
599 | } | |
600 | ||
c2cc9f0a | 601 | if (!inet_pton(AF_INET, addr, &inetdev->addr)) { |
36eb9bde | 602 | SYSERROR("invalid ipv4 address: %s", value); |
956edc54 | 603 | free(addr); |
c2cc9f0a | 604 | return -1; |
605 | } | |
606 | ||
0093bb8c DL |
607 | if (bcast && !inet_pton(AF_INET, bcast, &inetdev->bcast)) { |
608 | SYSERROR("invalid ipv4 broadcast address: %s", value); | |
956edc54 | 609 | free(addr); |
0093bb8c DL |
610 | return -1; |
611 | } | |
c2cc9f0a | 612 | |
a059591e DL |
613 | /* no prefix specified, determine it from the network class */ |
614 | inetdev->prefix = prefix ? atoi(prefix) : | |
615 | config_ip_prefix(&inetdev->addr); | |
616 | ||
b3df193c | 617 | /* if no broadcast address, let compute one from the |
0093bb8c DL |
618 | * prefix and address |
619 | */ | |
620 | if (!bcast) { | |
1b7d4743 DL |
621 | inetdev->bcast.s_addr = inetdev->addr.s_addr; |
622 | inetdev->bcast.s_addr |= | |
623 | htonl(INADDR_BROADCAST >> inetdev->prefix); | |
0093bb8c | 624 | } |
c2cc9f0a | 625 | |
626 | lxc_list_add(&netdev->ipv4, list); | |
627 | ||
956edc54 | 628 | free(addr); |
c2cc9f0a | 629 | return 0; |
630 | } | |
631 | ||
12a50cc6 | 632 | static int config_network_ipv4_gateway(const char *key, const char *value, |
f8fee0e2 MK |
633 | struct lxc_conf *lxc_conf) |
634 | { | |
635 | struct lxc_netdev *netdev; | |
636 | struct in_addr *gw; | |
637 | ||
638 | netdev = network_netdev(key, value, &lxc_conf->network); | |
639 | if (!netdev) | |
640 | return -1; | |
641 | ||
642 | gw = malloc(sizeof(*gw)); | |
643 | if (!gw) { | |
644 | SYSERROR("failed to allocate ipv4 gateway address"); | |
645 | return -1; | |
646 | } | |
647 | ||
648 | if (!value) { | |
649 | ERROR("no ipv4 gateway address specified"); | |
650 | return -1; | |
651 | } | |
652 | ||
19a26f82 MK |
653 | if (!strcmp(value, "auto")) { |
654 | netdev->ipv4_gateway = NULL; | |
655 | netdev->ipv4_gateway_auto = true; | |
656 | } else { | |
657 | if (!inet_pton(AF_INET, value, gw)) { | |
658 | SYSERROR("invalid ipv4 gateway address: %s", value); | |
659 | return -1; | |
660 | } | |
661 | ||
662 | netdev->ipv4_gateway = gw; | |
663 | netdev->ipv4_gateway_auto = false; | |
f8fee0e2 MK |
664 | } |
665 | ||
f8fee0e2 MK |
666 | return 0; |
667 | } | |
668 | ||
12a50cc6 | 669 | static int config_network_ipv6(const char *key, const char *value, |
e892973e | 670 | struct lxc_conf *lxc_conf) |
c2cc9f0a | 671 | { |
c2cc9f0a | 672 | struct lxc_netdev *netdev; |
673 | struct lxc_inet6dev *inet6dev; | |
674 | struct lxc_list *list; | |
12a50cc6 | 675 | char *slash,*valdup; |
c2cc9f0a | 676 | char *netmask; |
677 | ||
16950ecb | 678 | netdev = network_netdev(key, value, &lxc_conf->network); |
33c945e0 | 679 | if (!netdev) |
c2cc9f0a | 680 | return -1; |
c2cc9f0a | 681 | |
682 | inet6dev = malloc(sizeof(*inet6dev)); | |
683 | if (!inet6dev) { | |
36eb9bde | 684 | SYSERROR("failed to allocate ipv6 address"); |
c2cc9f0a | 685 | return -1; |
686 | } | |
687 | memset(inet6dev, 0, sizeof(*inet6dev)); | |
688 | ||
689 | list = malloc(sizeof(*list)); | |
690 | if (!list) { | |
36eb9bde | 691 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 692 | return -1; |
693 | } | |
694 | ||
695 | lxc_list_init(list); | |
696 | list->elem = inet6dev; | |
697 | ||
956edc54 SG |
698 | valdup = strdup(value); |
699 | if (!valdup) { | |
700 | ERROR("no address specified"); | |
701 | return -1; | |
702 | } | |
703 | ||
a059591e | 704 | inet6dev->prefix = 64; |
12a50cc6 | 705 | slash = strstr(valdup, "/"); |
c2cc9f0a | 706 | if (slash) { |
707 | *slash = '\0'; | |
708 | netmask = slash + 1; | |
709 | inet6dev->prefix = atoi(netmask); | |
710 | } | |
711 | ||
712 | if (!inet_pton(AF_INET6, value, &inet6dev->addr)) { | |
36eb9bde | 713 | SYSERROR("invalid ipv6 address: %s", value); |
956edc54 | 714 | free(valdup); |
c2cc9f0a | 715 | return -1; |
716 | } | |
717 | ||
c2cc9f0a | 718 | lxc_list_add(&netdev->ipv6, list); |
719 | ||
956edc54 | 720 | free(valdup); |
c2cc9f0a | 721 | return 0; |
722 | } | |
723 | ||
12a50cc6 | 724 | static int config_network_ipv6_gateway(const char *key, const char *value, |
f8fee0e2 MK |
725 | struct lxc_conf *lxc_conf) |
726 | { | |
727 | struct lxc_netdev *netdev; | |
728 | struct in6_addr *gw; | |
729 | ||
730 | netdev = network_netdev(key, value, &lxc_conf->network); | |
731 | if (!netdev) | |
732 | return -1; | |
733 | ||
734 | gw = malloc(sizeof(*gw)); | |
735 | if (!gw) { | |
736 | SYSERROR("failed to allocate ipv6 gateway address"); | |
737 | return -1; | |
738 | } | |
739 | ||
740 | if (!value) { | |
741 | ERROR("no ipv6 gateway address specified"); | |
742 | return -1; | |
743 | } | |
744 | ||
19a26f82 MK |
745 | if (!strcmp(value, "auto")) { |
746 | netdev->ipv6_gateway = NULL; | |
747 | netdev->ipv6_gateway_auto = true; | |
748 | } else { | |
749 | if (!inet_pton(AF_INET6, value, gw)) { | |
750 | SYSERROR("invalid ipv6 gateway address: %s", value); | |
751 | return -1; | |
752 | } | |
753 | ||
754 | netdev->ipv6_gateway = gw; | |
755 | netdev->ipv6_gateway_auto = false; | |
f8fee0e2 MK |
756 | } |
757 | ||
f8fee0e2 MK |
758 | return 0; |
759 | } | |
760 | ||
12a50cc6 | 761 | static int config_network_script(const char *key, const char *value, |
e3b4c4c4 ST |
762 | struct lxc_conf *lxc_conf) |
763 | { | |
764 | struct lxc_netdev *netdev; | |
765 | ||
766 | netdev = network_netdev(key, value, &lxc_conf->network); | |
767 | if (!netdev) | |
768 | return -1; | |
769 | ||
770 | char *copy = strdup(value); | |
771 | if (!copy) { | |
772 | SYSERROR("failed to dup string '%s'", value); | |
773 | return -1; | |
774 | } | |
72d0e1cb | 775 | if (strstr(key, "script.up") != NULL) { |
e3b4c4c4 ST |
776 | netdev->upscript = copy; |
777 | return 0; | |
778 | } | |
74a2b586 JK |
779 | if (strcmp(key, "lxc.network.script.down") == 0) { |
780 | netdev->downscript = copy; | |
781 | return 0; | |
782 | } | |
e3b4c4c4 ST |
783 | SYSERROR("Unknown key: %s", key); |
784 | free(copy); | |
785 | return -1; | |
786 | } | |
787 | ||
26ddeedd SH |
788 | static int add_hook(struct lxc_conf *lxc_conf, int which, char *hook) |
789 | { | |
790 | struct lxc_list *hooklist; | |
791 | ||
792 | hooklist = malloc(sizeof(*hooklist)); | |
793 | if (!hooklist) { | |
794 | free(hook); | |
795 | return -1; | |
796 | } | |
797 | hooklist->elem = hook; | |
798 | lxc_list_add_tail(&lxc_conf->hooks[which], hooklist); | |
799 | return 0; | |
800 | } | |
801 | ||
12a50cc6 | 802 | static int config_seccomp(const char *key, const char *value, |
8f2c3a70 SH |
803 | struct lxc_conf *lxc_conf) |
804 | { | |
805 | char *path; | |
806 | ||
807 | if (lxc_conf->seccomp) { | |
808 | ERROR("seccomp already defined"); | |
809 | return -1; | |
810 | } | |
811 | path = strdup(value); | |
812 | if (!path) { | |
813 | SYSERROR("failed to strdup '%s': %m", value); | |
814 | return -1; | |
815 | } | |
816 | ||
d95db067 DE |
817 | if (lxc_conf->seccomp) |
818 | free(lxc_conf->seccomp); | |
8f2c3a70 SH |
819 | lxc_conf->seccomp = path; |
820 | ||
821 | return 0; | |
822 | } | |
823 | ||
12a50cc6 | 824 | static int config_hook(const char *key, const char *value, |
26ddeedd SH |
825 | struct lxc_conf *lxc_conf) |
826 | { | |
827 | char *copy = strdup(value); | |
828 | if (!copy) { | |
829 | SYSERROR("failed to dup string '%s'", value); | |
830 | return -1; | |
831 | } | |
832 | if (strcmp(key, "lxc.hook.pre-start") == 0) | |
833 | return add_hook(lxc_conf, LXCHOOK_PRESTART, copy); | |
5ea6163a SH |
834 | else if (strcmp(key, "lxc.hook.pre-mount") == 0) |
835 | return add_hook(lxc_conf, LXCHOOK_PREMOUNT, copy); | |
26ddeedd SH |
836 | else if (strcmp(key, "lxc.hook.mount") == 0) |
837 | return add_hook(lxc_conf, LXCHOOK_MOUNT, copy); | |
838 | else if (strcmp(key, "lxc.hook.start") == 0) | |
839 | return add_hook(lxc_conf, LXCHOOK_START, copy); | |
840 | else if (strcmp(key, "lxc.hook.post-stop") == 0) | |
841 | return add_hook(lxc_conf, LXCHOOK_POSTSTOP, copy); | |
842 | SYSERROR("Unknown key: %s", key); | |
843 | free(copy); | |
844 | return -1; | |
845 | } | |
846 | ||
12a50cc6 | 847 | static int config_personality(const char *key, const const char *value, |
cccc74b5 DL |
848 | struct lxc_conf *lxc_conf) |
849 | { | |
525f0002 | 850 | signed long personality = lxc_config_parse_arch(value); |
cccc74b5 | 851 | |
525f0002 CS |
852 | if (personality >= 0) |
853 | lxc_conf->personality = personality; | |
854 | else | |
855 | WARN("unsupported personality '%s'", value); | |
970ab589 DL |
856 | |
857 | return 0; | |
cccc74b5 DL |
858 | } |
859 | ||
12a50cc6 DE |
860 | static int config_pts(const char *key, const char *value, |
861 | struct lxc_conf *lxc_conf) | |
10db618d | 862 | { |
863 | int maxpts = atoi(value); | |
864 | ||
865 | lxc_conf->pts = maxpts; | |
866 | ||
867 | return 0; | |
868 | } | |
869 | ||
12a50cc6 DE |
870 | static int config_tty(const char *key, const char *value, |
871 | struct lxc_conf *lxc_conf) | |
b0a33c1e | 872 | { |
873 | int nbtty = atoi(value); | |
874 | ||
875 | lxc_conf->tty = nbtty; | |
876 | ||
877 | return 0; | |
878 | } | |
879 | ||
12a50cc6 | 880 | static int config_ttydir(const char *key, const char *value, |
7c6ef2a2 SH |
881 | struct lxc_conf *lxc_conf) |
882 | { | |
883 | char *path; | |
884 | ||
885 | if (!value || strlen(value) == 0) | |
886 | return 0; | |
887 | path = strdup(value); | |
888 | if (!path) { | |
889 | SYSERROR("failed to strdup '%s': %m", value); | |
890 | return -1; | |
891 | } | |
892 | ||
d95db067 DE |
893 | if (lxc_conf->ttydir) |
894 | free(lxc_conf->ttydir); | |
7c6ef2a2 SH |
895 | lxc_conf->ttydir = path; |
896 | ||
897 | return 0; | |
898 | } | |
899 | ||
e075f5d9 | 900 | #if HAVE_APPARMOR |
12a50cc6 DE |
901 | static int config_aa_profile(const char *key, const char *value, |
902 | struct lxc_conf *lxc_conf) | |
e075f5d9 SH |
903 | { |
904 | char *path; | |
905 | ||
906 | if (!value || strlen(value) == 0) | |
907 | return 0; | |
908 | path = strdup(value); | |
909 | if (!path) { | |
910 | SYSERROR("failed to strdup '%s': %m", value); | |
911 | return -1; | |
912 | } | |
913 | ||
d95db067 DE |
914 | if (lxc_conf->aa_profile) |
915 | free(lxc_conf->aa_profile); | |
e075f5d9 SH |
916 | lxc_conf->aa_profile = path; |
917 | ||
918 | return 0; | |
919 | } | |
920 | #endif | |
921 | ||
4a85ce2a SH |
922 | static int config_logfile(const char *key, const char *value, |
923 | struct lxc_conf *lxc_conf) | |
924 | { | |
925 | char *path; | |
926 | ||
927 | // if given a blank entry, null out any previous entries. | |
928 | if (!value || strlen(value) == 0) { | |
929 | if (lxc_conf->logfile) { | |
930 | free(lxc_conf->logfile); | |
931 | lxc_conf->logfile = NULL; | |
932 | } | |
933 | return 0; | |
934 | } | |
935 | ||
936 | path = strdup(value); | |
937 | if (!path) { | |
938 | SYSERROR("failed to strdup '%s': %m", value); | |
939 | return -1; | |
940 | } | |
941 | ||
942 | if (lxc_log_set_file(path)) { | |
943 | free(path); | |
944 | return -1; | |
945 | } | |
946 | ||
947 | if (lxc_conf->logfile) | |
948 | free(lxc_conf->logfile); | |
949 | lxc_conf->logfile = path; | |
950 | ||
951 | return 0; | |
952 | } | |
953 | ||
954 | static int config_loglevel(const char *key, const char *value, | |
955 | struct lxc_conf *lxc_conf) | |
956 | { | |
957 | if (!value || strlen(value) == 0) | |
958 | return 0; | |
959 | ||
960 | if (value[0] >= '0' && value[0] <= '9') | |
961 | lxc_conf->loglevel = atoi(value); | |
962 | else | |
963 | lxc_conf->loglevel = lxc_log_priority_to_int(value); | |
964 | return lxc_log_set_level(lxc_conf->loglevel); | |
965 | } | |
966 | ||
12a50cc6 | 967 | static int config_autodev(const char *key, const char *value, |
c6883f38 SH |
968 | struct lxc_conf *lxc_conf) |
969 | { | |
970 | int v = atoi(value); | |
971 | ||
972 | lxc_conf->autodev = v; | |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
12a50cc6 DE |
977 | static int config_cgroup(const char *key, const char *value, |
978 | struct lxc_conf *lxc_conf) | |
576f946d | 979 | { |
980 | char *token = "lxc.cgroup."; | |
981 | char *subkey; | |
bf83c5b9 MS |
982 | struct lxc_list *cglist = NULL; |
983 | struct lxc_cgroup *cgelem = NULL; | |
576f946d | 984 | |
985 | subkey = strstr(key, token); | |
986 | ||
987 | if (!subkey) | |
988 | return -1; | |
989 | ||
990 | if (!strlen(subkey)) | |
991 | return -1; | |
992 | ||
993 | if (strlen(subkey) == strlen(token)) | |
994 | return -1; | |
a871ff6b | 995 | |
576f946d | 996 | subkey += strlen(token); |
997 | ||
998 | cglist = malloc(sizeof(*cglist)); | |
999 | if (!cglist) | |
bf83c5b9 | 1000 | goto out; |
576f946d | 1001 | |
1002 | cgelem = malloc(sizeof(*cgelem)); | |
bf83c5b9 MS |
1003 | if (!cgelem) |
1004 | goto out; | |
1005 | memset(cgelem, 0, sizeof(*cgelem)); | |
576f946d | 1006 | |
1007 | cgelem->subsystem = strdup(subkey); | |
1008 | cgelem->value = strdup(value); | |
bf83c5b9 MS |
1009 | |
1010 | if (!cgelem->subsystem || !cgelem->value) | |
1011 | goto out; | |
1012 | ||
576f946d | 1013 | cglist->elem = cgelem; |
1014 | ||
94d12f0a | 1015 | lxc_list_add_tail(&lxc_conf->cgroup, cglist); |
576f946d | 1016 | |
1017 | return 0; | |
bf83c5b9 MS |
1018 | |
1019 | out: | |
1020 | if (cglist) | |
1021 | free(cglist); | |
1022 | ||
1023 | if (cgelem) { | |
1024 | if (cgelem->subsystem) | |
1025 | free(cgelem->subsystem); | |
1026 | ||
1027 | if (cgelem->value) | |
1028 | free(cgelem->value); | |
1029 | ||
1030 | free(cgelem); | |
1031 | } | |
1032 | ||
1033 | return -1; | |
576f946d | 1034 | } |
1035 | ||
d95db067 DE |
1036 | static int config_path_item(const char *key, const char *value, |
1037 | struct lxc_conf *lxc_conf, char **conf_item) | |
c2cc9f0a | 1038 | { |
d95db067 | 1039 | char *valdup; |
c2cc9f0a | 1040 | if (strlen(value) >= MAXPATHLEN) { |
36eb9bde | 1041 | ERROR("%s path is too long", value); |
c2cc9f0a | 1042 | return -1; |
1043 | } | |
1044 | ||
d95db067 DE |
1045 | valdup = strdup(value); |
1046 | if (!valdup) { | |
36eb9bde | 1047 | SYSERROR("failed to duplicate string %s", value); |
c2cc9f0a | 1048 | return -1; |
1049 | } | |
d95db067 DE |
1050 | if (*conf_item) |
1051 | free(*conf_item); | |
1052 | *conf_item = valdup; | |
c2cc9f0a | 1053 | |
1054 | return 0; | |
1055 | } | |
1056 | ||
d95db067 DE |
1057 | static int config_fstab(const char *key, const char *value, |
1058 | struct lxc_conf *lxc_conf) | |
1059 | { | |
1060 | return config_path_item(key, value, lxc_conf, &lxc_conf->fstab); | |
1061 | } | |
1062 | ||
12a50cc6 DE |
1063 | static int config_mount(const char *key, const char *value, |
1064 | struct lxc_conf *lxc_conf) | |
e7938e9e MN |
1065 | { |
1066 | char *fstab_token = "lxc.mount"; | |
1067 | char *token = "lxc.mount.entry"; | |
1068 | char *subkey; | |
1069 | char *mntelem; | |
1070 | struct lxc_list *mntlist; | |
1071 | ||
1072 | subkey = strstr(key, token); | |
1073 | ||
1074 | if (!subkey) { | |
1075 | subkey = strstr(key, fstab_token); | |
1076 | ||
1077 | if (!subkey) | |
1078 | return -1; | |
1079 | ||
1080 | return config_fstab(key, value, lxc_conf); | |
1081 | } | |
1082 | ||
1083 | if (!strlen(subkey)) | |
1084 | return -1; | |
1085 | ||
1086 | mntlist = malloc(sizeof(*mntlist)); | |
1087 | if (!mntlist) | |
1088 | return -1; | |
1089 | ||
1090 | mntelem = strdup(value); | |
bf83c5b9 MS |
1091 | if (!mntelem) |
1092 | return -1; | |
e7938e9e MN |
1093 | mntlist->elem = mntelem; |
1094 | ||
1095 | lxc_list_add_tail(&lxc_conf->mount_list, mntlist); | |
1096 | ||
1097 | return 0; | |
1098 | } | |
1099 | ||
12a50cc6 | 1100 | static int config_cap_drop(const char *key, const char *value, |
81810dd1 DL |
1101 | struct lxc_conf *lxc_conf) |
1102 | { | |
d95db067 | 1103 | char *dropcaps, *dropptr, *sptr, *token; |
81810dd1 DL |
1104 | struct lxc_list *droplist; |
1105 | int ret = -1; | |
1106 | ||
1107 | if (!strlen(value)) | |
1108 | return -1; | |
1109 | ||
1110 | dropcaps = strdup(value); | |
1111 | if (!dropcaps) { | |
1112 | SYSERROR("failed to dup '%s'", value); | |
1113 | return -1; | |
1114 | } | |
1115 | ||
1116 | /* in case several capability drop is specified in a single line | |
1117 | * split these caps in a single element for the list */ | |
d95db067 DE |
1118 | for (dropptr = dropcaps;;dropptr = NULL) { |
1119 | token = strtok_r(dropptr, " \t", &sptr); | |
81810dd1 DL |
1120 | if (!token) { |
1121 | ret = 0; | |
1122 | break; | |
1123 | } | |
81810dd1 DL |
1124 | |
1125 | droplist = malloc(sizeof(*droplist)); | |
1126 | if (!droplist) { | |
1127 | SYSERROR("failed to allocate drop list"); | |
1128 | break; | |
1129 | } | |
1130 | ||
1131 | droplist->elem = strdup(token); | |
1132 | if (!droplist->elem) { | |
1133 | SYSERROR("failed to dup '%s'", token); | |
1134 | free(droplist); | |
1135 | break; | |
1136 | } | |
1137 | ||
1138 | lxc_list_add_tail(&lxc_conf->caps, droplist); | |
1139 | } | |
1140 | ||
1141 | free(dropcaps); | |
1142 | ||
1143 | return ret; | |
1144 | } | |
1145 | ||
12a50cc6 | 1146 | static int config_console(const char *key, const char *value, |
28a4b0e5 DL |
1147 | struct lxc_conf *lxc_conf) |
1148 | { | |
1149 | char *path; | |
1150 | ||
1151 | path = strdup(value); | |
1152 | if (!path) { | |
1153 | SYSERROR("failed to strdup '%s': %m", value); | |
1154 | return -1; | |
1155 | } | |
1156 | ||
d95db067 DE |
1157 | if (lxc_conf->console.path) |
1158 | free(lxc_conf->console.path); | |
28a4b0e5 DL |
1159 | lxc_conf->console.path = path; |
1160 | ||
1161 | return 0; | |
1162 | } | |
1163 | ||
12a50cc6 | 1164 | static int config_includefile(const char *key, const char *value, |
09ad6246 SH |
1165 | struct lxc_conf *lxc_conf) |
1166 | { | |
1167 | return lxc_config_read(value, lxc_conf); | |
1168 | } | |
1169 | ||
12a50cc6 DE |
1170 | static int config_rootfs(const char *key, const char *value, |
1171 | struct lxc_conf *lxc_conf) | |
c2cc9f0a | 1172 | { |
d95db067 | 1173 | return config_path_item(key, value, lxc_conf, &lxc_conf->rootfs.path); |
c2cc9f0a | 1174 | } |
1175 | ||
12a50cc6 DE |
1176 | static int config_rootfs_mount(const char *key, const char *value, |
1177 | struct lxc_conf *lxc_conf) | |
23b7ea69 | 1178 | { |
d95db067 | 1179 | return config_path_item(key, value, lxc_conf, &lxc_conf->rootfs.mount); |
23b7ea69 DL |
1180 | } |
1181 | ||
12a50cc6 DE |
1182 | static int config_pivotdir(const char *key, const char *value, |
1183 | struct lxc_conf *lxc_conf) | |
bf601689 | 1184 | { |
d95db067 | 1185 | return config_path_item(key, value, lxc_conf, &lxc_conf->rootfs.pivot); |
bf601689 MH |
1186 | } |
1187 | ||
12a50cc6 DE |
1188 | static int config_utsname(const char *key, const char *value, |
1189 | struct lxc_conf *lxc_conf) | |
c2cc9f0a | 1190 | { |
1191 | struct utsname *utsname; | |
1192 | ||
1193 | utsname = malloc(sizeof(*utsname)); | |
1194 | if (!utsname) { | |
36eb9bde | 1195 | SYSERROR("failed to allocate memory"); |
c2cc9f0a | 1196 | return -1; |
1197 | } | |
1198 | ||
1199 | if (strlen(value) >= sizeof(utsname->nodename)) { | |
36eb9bde | 1200 | ERROR("node name '%s' is too long", |
c2cc9f0a | 1201 | utsname->nodename); |
1202 | return -1; | |
1203 | } | |
1204 | ||
1205 | strcpy(utsname->nodename, value); | |
d95db067 DE |
1206 | if (lxc_conf->utsname) |
1207 | free(lxc_conf->utsname); | |
c2cc9f0a | 1208 | lxc_conf->utsname = utsname; |
1209 | ||
1210 | return 0; | |
1211 | } | |
1212 | ||
7a7ff0c6 | 1213 | static int parse_line(char *buffer, void *data) |
c2cc9f0a | 1214 | { |
72d0e1cb | 1215 | struct lxc_config_t *config; |
81192358 | 1216 | char *line, *linep; |
c2cc9f0a | 1217 | char *dot; |
1218 | char *key; | |
1219 | char *value; | |
476d4cf1 | 1220 | int ret = 0; |
c2cc9f0a | 1221 | |
91480a0f | 1222 | if (lxc_is_line_empty(buffer)) |
c2cc9f0a | 1223 | return 0; |
1224 | ||
81192358 DL |
1225 | /* we have to dup the buffer otherwise, at the re-exec for |
1226 | * reboot we modified the original string on the stack by | |
1227 | * replacing '=' by '\0' below | |
91480a0f | 1228 | */ |
81192358 | 1229 | linep = line = strdup(buffer); |
91480a0f DL |
1230 | if (!line) { |
1231 | SYSERROR("failed to allocate memory for '%s'", buffer); | |
81192358 | 1232 | return -1; |
91480a0f DL |
1233 | } |
1234 | ||
b2718c72 | 1235 | line += lxc_char_left_gc(line, strlen(line)); |
476d4cf1 DL |
1236 | |
1237 | /* martian option - ignoring it, the commented lines beginning by '#' | |
1238 | * fall in this case | |
1239 | */ | |
1240 | if (strncmp(line, "lxc.", 4)) | |
91480a0f | 1241 | goto out; |
476d4cf1 DL |
1242 | |
1243 | ret = -1; | |
c2cc9f0a | 1244 | |
b2718c72 | 1245 | dot = strstr(line, "="); |
c2cc9f0a | 1246 | if (!dot) { |
36eb9bde | 1247 | ERROR("invalid configuration line: %s", line); |
91480a0f | 1248 | goto out; |
c2cc9f0a | 1249 | } |
a871ff6b | 1250 | |
c2cc9f0a | 1251 | *dot = '\0'; |
1252 | value = dot + 1; | |
1253 | ||
b2718c72 | 1254 | key = line; |
1255 | key[lxc_char_right_gc(key, strlen(key))] = '\0'; | |
c2cc9f0a | 1256 | |
b2718c72 | 1257 | value += lxc_char_left_gc(value, strlen(value)); |
1258 | value[lxc_char_right_gc(value, strlen(value))] = '\0'; | |
c2cc9f0a | 1259 | |
72d0e1cb | 1260 | config = lxc_getconfig(key); |
c2cc9f0a | 1261 | if (!config) { |
6e1d9b94 | 1262 | ERROR("unknown key %s", key); |
91480a0f | 1263 | goto out; |
c2cc9f0a | 1264 | } |
1265 | ||
91480a0f DL |
1266 | ret = config->cb(key, value, data); |
1267 | ||
1268 | out: | |
81192358 | 1269 | free(linep); |
91480a0f | 1270 | return ret; |
c2cc9f0a | 1271 | } |
1272 | ||
af5b0155 CLG |
1273 | int lxc_config_readline(char *buffer, struct lxc_conf *conf) |
1274 | { | |
1275 | return parse_line(buffer, conf); | |
1276 | } | |
1277 | ||
b2718c72 | 1278 | int lxc_config_read(const char *file, struct lxc_conf *conf) |
c2cc9f0a | 1279 | { |
2382ecff | 1280 | return lxc_file_for_each_line(file, parse_line, conf); |
c2cc9f0a | 1281 | } |
62e46035 CLG |
1282 | |
1283 | int lxc_config_define_add(struct lxc_list *defines, char* arg) | |
1284 | { | |
1285 | struct lxc_list *dent; | |
1286 | ||
1287 | dent = malloc(sizeof(struct lxc_list)); | |
1288 | if (!dent) | |
1289 | return -1; | |
1290 | ||
1291 | dent->elem = arg; | |
1292 | lxc_list_add_tail(defines, dent); | |
1293 | return 0; | |
1294 | } | |
1295 | ||
226a18d6 | 1296 | int lxc_config_define_load(struct lxc_list *defines, struct lxc_conf *conf) |
62e46035 | 1297 | { |
9ebb03ad | 1298 | struct lxc_list *it,*next; |
62e46035 CLG |
1299 | int ret = 0; |
1300 | ||
1301 | lxc_list_for_each(it, defines) { | |
1302 | ret = lxc_config_readline(it->elem, conf); | |
1303 | if (ret) | |
1304 | break; | |
1305 | } | |
1306 | ||
9ebb03ad | 1307 | lxc_list_for_each_safe(it, defines, next) { |
62e46035 CLG |
1308 | lxc_list_del(it); |
1309 | free(it); | |
1310 | } | |
1311 | ||
1312 | return ret; | |
1313 | } | |
525f0002 CS |
1314 | |
1315 | signed long lxc_config_parse_arch(const char *arch) | |
1316 | { | |
6ff05e18 | 1317 | #if HAVE_SYS_PERSONALITY_H |
525f0002 CS |
1318 | struct per_name { |
1319 | char *name; | |
1320 | unsigned long per; | |
1321 | } pername[4] = { | |
1322 | { "x86", PER_LINUX32 }, | |
1323 | { "i686", PER_LINUX32 }, | |
1324 | { "x86_64", PER_LINUX }, | |
1325 | { "amd64", PER_LINUX }, | |
1326 | }; | |
1327 | size_t len = sizeof(pername) / sizeof(pername[0]); | |
1328 | ||
1329 | int i; | |
1330 | ||
1331 | for (i = 0; i < len; i++) { | |
1332 | if (!strcmp(pername[i].name, arch)) | |
1333 | return pername[i].per; | |
1334 | } | |
6ff05e18 | 1335 | #endif |
525f0002 CS |
1336 | |
1337 | return -1; | |
1338 | } | |
72d0e1cb SG |
1339 | |
1340 | static int lxc_get_conf_int(struct lxc_conf *c, char *retv, int inlen, int v) | |
1341 | { | |
1342 | if (!retv) | |
1343 | inlen = 0; | |
1344 | else | |
1345 | memset(retv, 0, inlen); | |
1346 | return snprintf(retv, inlen, "%d", v); | |
1347 | } | |
1348 | ||
1349 | static int lxc_get_arch_entry(struct lxc_conf *c, char *retv, int inlen) | |
1350 | { | |
6ff05e18 | 1351 | int fulllen = 0; |
72d0e1cb SG |
1352 | |
1353 | if (!retv) | |
1354 | inlen = 0; | |
1355 | else | |
1356 | memset(retv, 0, inlen); | |
1357 | ||
6ff05e18 SG |
1358 | #if HAVE_SYS_PERSONALITY_H |
1359 | int len = 0; | |
1360 | ||
72d0e1cb SG |
1361 | switch(c->personality) { |
1362 | case PER_LINUX32: strprint(retv, inlen, "x86"); break; | |
1363 | case PER_LINUX: strprint(retv, inlen, "x86_64"); break; | |
1364 | default: break; | |
1365 | } | |
6ff05e18 | 1366 | #endif |
72d0e1cb SG |
1367 | |
1368 | return fulllen; | |
1369 | } | |
1370 | ||
1371 | /* | |
1372 | * If you ask for a specific cgroup value, i.e. lxc.cgroup.devices.list, | |
1373 | * then just the value(s) will be printed. Since there still could be | |
1374 | * more than one, it is newline-separated. | |
1375 | * (Maybe that's ambigous, since some values, i.e. devices.list, will | |
1376 | * already have newlines?) | |
1377 | * If you ask for 'lxc.cgroup", then all cgroup entries will be printed, | |
1378 | * in 'lxc.cgroup.subsystem.key = value' format. | |
1379 | */ | |
12a50cc6 DE |
1380 | static int lxc_get_cgroup_entry(struct lxc_conf *c, char *retv, int inlen, |
1381 | const char *key) | |
72d0e1cb SG |
1382 | { |
1383 | int fulllen = 0, len; | |
1384 | int all = 0; | |
1385 | struct lxc_list *it; | |
1386 | ||
1387 | if (!retv) | |
1388 | inlen = 0; | |
1389 | else | |
1390 | memset(retv, 0, inlen); | |
1391 | ||
1392 | if (strcmp(key, "all") == 0) | |
1393 | all = 1; | |
1394 | ||
1395 | lxc_list_for_each(it, &c->cgroup) { | |
1396 | struct lxc_cgroup *cg = it->elem; | |
1397 | if (all) { | |
1398 | strprint(retv, inlen, "lxc.cgroup.%s = %s\n", cg->subsystem, cg->value); | |
1399 | } else if (strcmp(cg->subsystem, key) == 0) { | |
1400 | strprint(retv, inlen, "%s\n", cg->value); | |
1401 | } | |
1402 | } | |
1403 | return fulllen; | |
1404 | } | |
1405 | ||
12a50cc6 DE |
1406 | static int lxc_get_item_hooks(struct lxc_conf *c, char *retv, int inlen, |
1407 | const char *key) | |
72d0e1cb SG |
1408 | { |
1409 | char *subkey; | |
1410 | int len, fulllen = 0, found = -1; | |
1411 | struct lxc_list *it; | |
1412 | int i; | |
1413 | ||
1414 | /* "lxc.hook.mount" */ | |
1415 | subkey = index(key, '.'); | |
1416 | if (subkey) subkey = index(subkey+1, '.'); | |
1417 | if (!subkey) | |
1418 | return -1; | |
1419 | subkey++; | |
1420 | if (!*subkey) | |
1421 | return -1; | |
1422 | for (i=0; i<NUM_LXC_HOOKS; i++) { | |
1423 | if (strcmp(lxchook_names[i], subkey) == 0) { | |
1424 | found=i; | |
1425 | break; | |
1426 | } | |
1427 | } | |
1428 | if (found == -1) | |
1429 | return -1; | |
1430 | ||
1431 | if (!retv) | |
1432 | inlen = 0; | |
1433 | else | |
1434 | memset(retv, 0, inlen); | |
1435 | ||
1436 | lxc_list_for_each(it, &c->hooks[found]) { | |
1437 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1438 | } | |
1439 | return fulllen; | |
1440 | } | |
1441 | ||
1442 | static int lxc_get_item_cap_drop(struct lxc_conf *c, char *retv, int inlen) | |
1443 | { | |
1444 | int len, fulllen = 0; | |
1445 | struct lxc_list *it; | |
1446 | ||
1447 | if (!retv) | |
1448 | inlen = 0; | |
1449 | else | |
1450 | memset(retv, 0, inlen); | |
1451 | ||
1452 | lxc_list_for_each(it, &c->caps) { | |
1453 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1454 | } | |
1455 | return fulllen; | |
1456 | } | |
1457 | ||
1458 | static int lxc_get_mount_entries(struct lxc_conf *c, char *retv, int inlen) | |
1459 | { | |
1460 | int len, fulllen = 0; | |
1461 | struct lxc_list *it; | |
1462 | ||
1463 | if (!retv) | |
1464 | inlen = 0; | |
1465 | else | |
1466 | memset(retv, 0, inlen); | |
1467 | ||
1468 | lxc_list_for_each(it, &c->mount_list) { | |
1469 | strprint(retv, inlen, "%s\n", (char *)it->elem); | |
1470 | } | |
1471 | return fulllen; | |
1472 | } | |
1473 | ||
1474 | /* | |
1475 | * lxc.network.0.XXX, where XXX can be: name, type, link, flags, type, | |
1476 | * macvlan.mode, veth.pair, vlan, ipv4, ipv6, upscript, hwaddr, mtu, | |
1477 | * ipv4_gateway, ipv6_gateway. ipvX_gateway can return 'auto' instead | |
1478 | * of an address. ipv4 and ipv6 return lists (newline-separated). | |
1479 | * things like veth.pair return '' if invalid (i.e. if called for vlan | |
1480 | * type). | |
1481 | */ | |
12a50cc6 DE |
1482 | static int lxc_get_item_nic(struct lxc_conf *c, char *retv, int inlen, |
1483 | const char *key) | |
72d0e1cb SG |
1484 | { |
1485 | char *p1; | |
fe88b9d2 | 1486 | int len, fulllen = 0; |
72d0e1cb SG |
1487 | struct lxc_netdev *netdev; |
1488 | ||
1489 | if (!retv) | |
1490 | inlen = 0; | |
1491 | else | |
1492 | memset(retv, 0, inlen); | |
1493 | ||
1494 | p1 = index(key, '.'); | |
1495 | if (!p1 || *(p1+1) == '\0') return -1; | |
1496 | p1++; | |
1497 | ||
1498 | netdev = get_netdev_from_key(key, &c->network); | |
1499 | if (!netdev) | |
1500 | return -1; | |
1501 | if (strcmp(p1, "name") == 0) { | |
1502 | if (netdev->name) | |
1503 | strprint(retv, inlen, "%s", netdev->name); | |
1504 | } else if (strcmp(p1, "type") == 0) { | |
1505 | strprint(retv, inlen, "%s", lxc_net_type_to_str(netdev->type)); | |
1506 | } else if (strcmp(p1, "link") == 0) { | |
1507 | if (netdev->link) | |
1508 | strprint(retv, inlen, "%s", netdev->link); | |
1509 | } else if (strcmp(p1, "flags") == 0) { | |
1510 | if (netdev->flags & IFF_UP) | |
1511 | strprint(retv, inlen, "up"); | |
1512 | } else if (strcmp(p1, "upscript") == 0) { | |
1513 | if (netdev->upscript) | |
1514 | strprint(retv, inlen, "%s", netdev->upscript); | |
1515 | } else if (strcmp(p1, "hwaddr") == 0) { | |
1516 | if (netdev->hwaddr) | |
1517 | strprint(retv, inlen, "%s", netdev->hwaddr); | |
1518 | } else if (strcmp(p1, "mtu") == 0) { | |
1519 | if (netdev->mtu) | |
1520 | strprint(retv, inlen, "%s", netdev->mtu); | |
1521 | } else if (strcmp(p1, "macvlan.mode") == 0) { | |
1522 | if (netdev->type == LXC_NET_MACVLAN) { | |
1523 | const char *mode; | |
1524 | switch (netdev->priv.macvlan_attr.mode) { | |
1525 | case MACVLAN_MODE_PRIVATE: mode = "private"; break; | |
1526 | case MACVLAN_MODE_VEPA: mode = "vepa"; break; | |
1527 | case MACVLAN_MODE_BRIDGE: mode = "bridge"; break; | |
1528 | default: mode = "(invalid)"; break; | |
1529 | } | |
1530 | strprint(retv, inlen, "%s", mode); | |
1531 | } | |
1532 | } else if (strcmp(p1, "veth.pair") == 0) { | |
1533 | if (netdev->type == LXC_NET_VETH && netdev->priv.veth_attr.pair) | |
1534 | strprint(retv, inlen, "%s", netdev->priv.veth_attr.pair); | |
1535 | } else if (strcmp(p1, "vlan") == 0) { | |
1536 | if (netdev->type == LXC_NET_VLAN) { | |
1537 | strprint(retv, inlen, "%d", netdev->priv.vlan_attr.vid); | |
1538 | } | |
1539 | } else if (strcmp(p1, "ipv4_gateway") == 0) { | |
1540 | if (netdev->ipv4_gateway_auto) { | |
1541 | strprint(retv, inlen, "auto"); | |
1542 | } else if (netdev->ipv4_gateway) { | |
1543 | char buf[INET_ADDRSTRLEN]; | |
1544 | inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf)); | |
1545 | strprint(retv, inlen, "%s", buf); | |
1546 | } | |
1547 | } else if (strcmp(p1, "ipv4") == 0) { | |
1548 | struct lxc_list *it2; | |
1549 | lxc_list_for_each(it2, &netdev->ipv4) { | |
1550 | struct lxc_inetdev *i = it2->elem; | |
1551 | char buf[INET_ADDRSTRLEN]; | |
1552 | inet_ntop(AF_INET, &i->addr, buf, sizeof(buf)); | |
1553 | strprint(retv, inlen, "%s\n", buf); | |
1554 | } | |
1555 | } else if (strcmp(p1, "ipv6_gateway") == 0) { | |
1556 | if (netdev->ipv6_gateway_auto) { | |
1557 | strprint(retv, inlen, "auto"); | |
1558 | } else if (netdev->ipv6_gateway) { | |
1559 | char buf[INET_ADDRSTRLEN]; | |
1560 | inet_ntop(AF_INET, netdev->ipv6_gateway, buf, sizeof(buf)); | |
1561 | strprint(retv, inlen, "%s", buf); | |
1562 | } | |
1563 | } else if (strcmp(p1, "ipv6") == 0) { | |
1564 | struct lxc_list *it2; | |
1565 | lxc_list_for_each(it2, &netdev->ipv6) { | |
1566 | struct lxc_inetdev *i = it2->elem; | |
1567 | char buf[INET_ADDRSTRLEN]; | |
1568 | inet_ntop(AF_INET6, &i->addr, buf, sizeof(buf)); | |
1569 | strprint(retv, inlen, "%s\n", buf); | |
1570 | } | |
1571 | } | |
1572 | return fulllen; | |
1573 | } | |
1574 | ||
1575 | static int lxc_get_item_network(struct lxc_conf *c, char *retv, int inlen) | |
1576 | { | |
1577 | int len, fulllen = 0; | |
1578 | struct lxc_list *it; | |
1579 | ||
1580 | if (!retv) | |
1581 | inlen = 0; | |
1582 | else | |
1583 | memset(retv, 0, inlen); | |
1584 | ||
1585 | lxc_list_for_each(it, &c->network) { | |
1586 | struct lxc_netdev *n = it->elem; | |
1587 | const char *t = lxc_net_type_to_str(n->type); | |
1588 | strprint(retv, inlen, "%s\n", t ? t : "(invalid)"); | |
1589 | } | |
1590 | return fulllen; | |
1591 | } | |
1592 | ||
12a50cc6 DE |
1593 | int lxc_get_config_item(struct lxc_conf *c, const char *key, char *retv, |
1594 | int inlen) | |
72d0e1cb | 1595 | { |
4a85ce2a | 1596 | const char *v = NULL; |
72d0e1cb SG |
1597 | |
1598 | if (strcmp(key, "lxc.mount.entry") == 0) | |
1599 | return lxc_get_mount_entries(c, retv, inlen); | |
1600 | else if (strcmp(key, "lxc.mount") == 0) | |
1601 | v = c->fstab; | |
1602 | else if (strcmp(key, "lxc.tty") == 0) | |
1603 | return lxc_get_conf_int(c, retv, inlen, c->tty); | |
1604 | else if (strcmp(key, "lxc.pts") == 0) | |
1605 | return lxc_get_conf_int(c, retv, inlen, c->pts); | |
1606 | else if (strcmp(key, "lxc.devttydir") == 0) | |
1607 | v = c->ttydir; | |
1608 | else if (strcmp(key, "lxc.arch") == 0) | |
1609 | return lxc_get_arch_entry(c, retv, inlen); | |
1f530df6 | 1610 | #if HAVE_APPARMOR |
72d0e1cb SG |
1611 | else if (strcmp(key, "lxc.aa_profile") == 0) |
1612 | v = c->aa_profile; | |
1f530df6 | 1613 | #endif |
4a85ce2a SH |
1614 | else if (strcmp(key, "lxc.logfile") == 0) |
1615 | v = c->logfile; | |
1616 | else if (strcmp(key, "lxc.loglevel") == 0) | |
1617 | v = lxc_log_priority_to_string(c->loglevel); | |
72d0e1cb SG |
1618 | else if (strcmp(key, "lxc.cgroup") == 0) // all cgroup info |
1619 | return lxc_get_cgroup_entry(c, retv, inlen, "all"); | |
1620 | else if (strncmp(key, "lxc.cgroup.", 11) == 0) // specific cgroup info | |
1621 | return lxc_get_cgroup_entry(c, retv, inlen, key + 11); | |
1622 | else if (strcmp(key, "lxc.utsname") == 0) | |
64fca455 | 1623 | v = c->utsname ? c->utsname->nodename : NULL; |
72d0e1cb SG |
1624 | else if (strcmp(key, "lxc.console") == 0) |
1625 | v = c->console.path; | |
1626 | else if (strcmp(key, "lxc.rootfs.mount") == 0) | |
1627 | v = c->rootfs.mount; | |
1628 | else if (strcmp(key, "lxc.rootfs") == 0) | |
1629 | v = c->rootfs.path; | |
1630 | else if (strcmp(key, "lxc.pivotdir") == 0) | |
1631 | v = c->rootfs.pivot; | |
1632 | else if (strcmp(key, "lxc.cap.drop") == 0) | |
1633 | return lxc_get_item_cap_drop(c, retv, inlen); | |
1634 | else if (strncmp(key, "lxc.hook", 8) == 0) | |
1635 | return lxc_get_item_hooks(c, retv, inlen, key); | |
1636 | else if (strcmp(key, "lxc.network") == 0) | |
1637 | return lxc_get_item_network(c, retv, inlen); | |
1638 | else if (strncmp(key, "lxc.network.", 12) == 0) | |
1639 | return lxc_get_item_nic(c, retv, inlen, key + 12); | |
1640 | else return -1; | |
1641 | ||
1642 | if (!v) | |
1643 | return 0; | |
1644 | if (retv && inlen >= strlen(v) + 1) | |
1645 | strncpy(retv, v, strlen(v)+1); | |
1646 | return strlen(v); | |
1647 | } | |
1648 | ||
12a50cc6 | 1649 | int lxc_clear_config_item(struct lxc_conf *c, const char *key) |
72d0e1cb SG |
1650 | { |
1651 | if (strcmp(key, "lxc.network") == 0) | |
1652 | return lxc_clear_config_network(c); | |
1653 | else if (strncmp(key, "lxc.network.", 12) == 0) | |
1654 | return lxc_clear_nic(c, key + 12); | |
1655 | else if (strcmp(key, "lxc.cap.drop") == 0) | |
1656 | return lxc_clear_config_caps(c); | |
1657 | else if (strncmp(key, "lxc.cgroup", 10) == 0) | |
1658 | return lxc_clear_cgroups(c, key); | |
1659 | else if (strcmp(key, "lxc.mount.entries") == 0) | |
1660 | return lxc_clear_mount_entries(c); | |
17ed13a3 SH |
1661 | else if (strncmp(key, "lxc.hook", 8) == 0) |
1662 | return lxc_clear_hooks(c, key); | |
72d0e1cb SG |
1663 | |
1664 | return -1; | |
1665 | } | |
1666 | ||
1667 | /* | |
1668 | * writing out a confile. | |
1669 | */ | |
1670 | void write_config(FILE *fout, struct lxc_conf *c) | |
1671 | { | |
1672 | struct lxc_list *it; | |
1673 | int i; | |
1674 | ||
1675 | if (c->fstab) | |
1676 | fprintf(fout, "lxc.mount = %s\n", c->fstab); | |
1677 | lxc_list_for_each(it, &c->mount_list) { | |
1678 | fprintf(fout, "lxc.mount.entry = %s\n", (char *)it->elem); | |
1679 | } | |
1680 | if (c->tty) | |
1681 | fprintf(fout, "lxc.tty = %d\n", c->tty); | |
1682 | if (c->pts) | |
1683 | fprintf(fout, "lxc.pts = %d\n", c->pts); | |
1684 | if (c->ttydir) | |
1685 | fprintf(fout, "lxc.devttydir = %s\n", c->ttydir); | |
6ff05e18 | 1686 | #if HAVE_SYS_PERSONALITY_H |
72d0e1cb SG |
1687 | switch(c->personality) { |
1688 | case PER_LINUX32: fprintf(fout, "lxc.arch = x86\n"); break; | |
1689 | case PER_LINUX: fprintf(fout, "lxc.arch = x86_64\n"); break; | |
1690 | default: break; | |
1691 | } | |
6ff05e18 | 1692 | #endif |
1f530df6 | 1693 | #if HAVE_APPARMOR |
72d0e1cb SG |
1694 | if (c->aa_profile) |
1695 | fprintf(fout, "lxc.aa_profile = %s\n", c->aa_profile); | |
1f530df6 | 1696 | #endif |
f3c7020a SH |
1697 | if (c->loglevel != LXC_LOG_PRIORITY_NOTSET) |
1698 | fprintf(fout, "lxc.loglevel = %s\n", lxc_log_priority_to_string(c->loglevel)); | |
4a85ce2a SH |
1699 | if (c->logfile) |
1700 | fprintf(fout, "lxc.logfile = %s\n", c->logfile); | |
72d0e1cb SG |
1701 | lxc_list_for_each(it, &c->cgroup) { |
1702 | struct lxc_cgroup *cg = it->elem; | |
1703 | fprintf(fout, "lxc.cgroup.%s = %s\n", cg->subsystem, cg->value); | |
1704 | } | |
1705 | if (c->utsname) | |
1706 | fprintf(fout, "lxc.utsname = %s\n", c->utsname->nodename); | |
1707 | lxc_list_for_each(it, &c->network) { | |
1708 | struct lxc_netdev *n = it->elem; | |
1709 | const char *t = lxc_net_type_to_str(n->type); | |
1710 | struct lxc_list *it2; | |
1711 | fprintf(fout, "lxc.network.type = %s\n", t ? t : "(invalid)"); | |
1712 | if (n->flags & IFF_UP) | |
1713 | fprintf(fout, "lxc.network.flags = up\n"); | |
1714 | if (n->link) | |
1715 | fprintf(fout, "lxc.network.link = %s\n", n->link); | |
1716 | if (n->name) | |
1717 | fprintf(fout, "lxc.network.name = %s\n", n->name); | |
1718 | if (n->type == LXC_NET_MACVLAN) { | |
1719 | const char *mode; | |
1720 | switch (n->priv.macvlan_attr.mode) { | |
1721 | case MACVLAN_MODE_PRIVATE: mode = "private"; break; | |
1722 | case MACVLAN_MODE_VEPA: mode = "vepa"; break; | |
1723 | case MACVLAN_MODE_BRIDGE: mode = "bridge"; break; | |
1724 | default: mode = "(invalid)"; break; | |
1725 | } | |
1726 | fprintf(fout, "lxc.network.macvlan.mode = %s\n", mode); | |
1727 | } else if (n->type == LXC_NET_VETH) { | |
1728 | if (n->priv.veth_attr.pair) | |
1729 | fprintf(fout, "lxc.network.veth.pair = %s\n", | |
1730 | n->priv.veth_attr.pair); | |
1731 | } else if (n->type == LXC_NET_VLAN) { | |
1732 | fprintf(fout, "lxc.network.vlan.id = %d\n", n->priv.vlan_attr.vid); | |
1733 | } | |
1734 | if (n->upscript) | |
1735 | fprintf(fout, "lxc.network.script.up = %s\n", n->upscript); | |
1736 | if (n->hwaddr) | |
1737 | fprintf(fout, "lxc.network.hwaddr = %s\n", n->hwaddr); | |
1738 | if (n->mtu) | |
1739 | fprintf(fout, "lxc.network.mtu = %s\n", n->mtu); | |
1740 | if (n->ipv4_gateway_auto) | |
1741 | fprintf(fout, "lxc.network.ipv4.gateway = auto\n"); | |
1742 | else if (n->ipv4_gateway) { | |
1743 | char buf[INET_ADDRSTRLEN]; | |
1744 | inet_ntop(AF_INET, n->ipv4_gateway, buf, sizeof(buf)); | |
1745 | fprintf(fout, "lxc.network.ipv4.gateway = %s\n", buf); | |
1746 | } | |
1747 | lxc_list_for_each(it2, &n->ipv4) { | |
1748 | struct lxc_inetdev *i = it2->elem; | |
1749 | char buf[INET_ADDRSTRLEN]; | |
1750 | inet_ntop(AF_INET, &i->addr, buf, sizeof(buf)); | |
1751 | fprintf(fout, "lxc.network.ipv4 = %s\n", buf); | |
1752 | } | |
1753 | if (n->ipv6_gateway_auto) | |
1754 | fprintf(fout, "lxc.network.ipv6.gateway = auto\n"); | |
1755 | else if (n->ipv6_gateway) { | |
1756 | char buf[INET6_ADDRSTRLEN]; | |
1757 | inet_ntop(AF_INET6, n->ipv6_gateway, buf, sizeof(buf)); | |
1758 | fprintf(fout, "lxc.network.ipv6.gateway = %s\n", buf); | |
1759 | } | |
1760 | lxc_list_for_each(it2, &n->ipv6) { | |
1761 | struct lxc_inet6dev *i = it2->elem; | |
1762 | char buf[INET6_ADDRSTRLEN]; | |
1763 | inet_ntop(AF_INET, &i->addr, buf, sizeof(buf)); | |
1764 | fprintf(fout, "lxc.network.ipv6 = %s\n", buf); | |
1765 | } | |
1766 | } | |
1767 | lxc_list_for_each(it, &c->caps) | |
1768 | fprintf(fout, "lxc.cap.drop = %s\n", (char *)it->elem); | |
1769 | for (i=0; i<NUM_LXC_HOOKS; i++) { | |
1770 | lxc_list_for_each(it, &c->hooks[i]) | |
1771 | fprintf(fout, "lxc.hook.%s = %s\n", | |
1772 | lxchook_names[i], (char *)it->elem); | |
1773 | } | |
1774 | if (c->console.path) | |
1775 | fprintf(fout, "lxc.console = %s\n", c->console.path); | |
1776 | if (c->rootfs.path) | |
1777 | fprintf(fout, "lxc.rootfs = %s\n", c->rootfs.path); | |
1778 | if (c->rootfs.mount && strcmp(c->rootfs.mount, LXCROOTFSMOUNT) != 0) | |
1779 | fprintf(fout, "lxc.rootfs.mount = %s\n", c->rootfs.mount); | |
1780 | if (c->rootfs.pivot) | |
1781 | fprintf(fout, "lxc.pivotdir = %s\n", c->rootfs.pivot); | |
1782 | } |