]> git.proxmox.com Git - mirror_lxc.git/blame - src/lxc/confile.c
projects / mirror_lxc.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
spelling: unsigned
[mirror_lxc.git] / src / lxc / confile.c
CommitLineData
c2cc9f0a 1/*
2 * lxc: linux Container library
c2cc9f0a 3 * (C) Copyright IBM Corp. 2007, 2008
4 *
5 * Authors:
9afe19d6 6 * Daniel Lezcano <daniel.lezcano at free.fr>
70c1e708
CB		 7 * Serge Hallyn <serge@hallyn.com>
8 * Christian Brauner <christian.brauner@ubuntu.com>
c2cc9f0a 9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, write to the Free Software
250b1eec 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
c2cc9f0a 23 */
70c1e708 24
d38dd64a
CB		 25#ifndef _GNU_SOURCE
26#define _GNU_SOURCE 1
27#endif
70c1e708 28#define __STDC_FORMAT_MACROS
d38dd64a 29#include <arpa/inet.h>
70c1e708
CB		 30#include <ctype.h>
31#include <dirent.h>
32#include <errno.h>
33#include <fcntl.h>
34#include <inttypes.h>
d38dd64a
CB		 35#include <net/if.h>
36#include <netinet/in.h>
70c1e708 37#include <signal.h>
c2cc9f0a 38#include <stdio.h>
39#include <stdlib.h>
40#include <string.h>
70c1e708 41#include <sys/param.h>
63376d7d 42#include <sys/stat.h>
c2cc9f0a 43#include <sys/types.h>
c2cc9f0a 44#include <sys/utsname.h>
d38dd64a
CB		 45#include <syslog.h>
46#include <time.h>
47#include <unistd.h>
c2cc9f0a 48
70c1e708 49#include "conf.h"
6ff05e18 50#include "config.h"
525f0002 51#include "confile.h"
0b843d35 52#include "confile_utils.h"
d38dd64a 53#include "../include/netns_ifaddrs.h"
f2363e38 54#include "log.h"
58e0f57d 55#include "lxcseccomp.h"
70c1e708
CB		 56#include "network.h"
57#include "parse.h"
28d832c4 58#include "storage.h"
70c1e708 59#include "utils.h"
36eb9bde 60
6ff05e18
SG		 61#if HAVE_SYS_PERSONALITY_H
62#include <sys/personality.h>
63#endif
64
43f984ea
DJ		 65#ifndef HAVE_STRLCPY
66#include "include/strlcpy.h"
67#endif
68
ebcd5140
DJ		 69#ifndef HAVE_STRLCAT
70#include "include/strlcat.h"
71#endif
72
ac2cecc4 73lxc_log_define(confile, lxc);
576f946d 74
afeec9b7
CB		 75#define lxc_config_define(name) \
76 __hot static int set_config_##name(const char *, const char *, \
77 struct lxc_conf *, void *); \
78 __hot static int get_config_##name(const char *, char *, int, \
79 struct lxc_conf *, void *); \
80 __hot static int clr_config_##name(const char *, struct lxc_conf *, \
81 void *);
71e287ca 82
63bab717 83lxc_config_define(autodev);
71e287ca 84lxc_config_define(apparmor_allow_incomplete);
1800f924 85lxc_config_define(apparmor_allow_nesting);
63bab717 86lxc_config_define(apparmor_profile);
1800f924 87lxc_config_define(apparmor_raw);
63bab717
CB		 88lxc_config_define(cap_drop);
89lxc_config_define(cap_keep);
43654d34 90lxc_config_define(cgroup_controller);
54860ed0 91lxc_config_define(cgroup2_controller);
43654d34 92lxc_config_define(cgroup_dir);
9caee129 93lxc_config_define(cgroup_relative);
28f3b1cd 94lxc_config_define(console_buffer_size);
861813e5 95lxc_config_define(console_logfile);
63bab717 96lxc_config_define(console_path);
861813e5
CB		 97lxc_config_define(console_rotate);
98lxc_config_define(console_size);
63bab717
CB		 99lxc_config_define(environment);
100lxc_config_define(ephemeral);
101lxc_config_define(execute_cmd);
102lxc_config_define(group);
103lxc_config_define(hooks);
44ae0fb6 104lxc_config_define(hooks_version);
71e287ca 105lxc_config_define(idmaps);
63bab717
CB		 106lxc_config_define(includefiles);
107lxc_config_define(init_cmd);
3c491553 108lxc_config_define(init_cwd);
63bab717
CB		 109lxc_config_define(init_gid);
110lxc_config_define(init_uid);
46cc906d 111lxc_config_define(log_file);
63bab717
CB		 112lxc_config_define(log_level);
113lxc_config_define(log_syslog);
114lxc_config_define(monitor);
258f8051 115lxc_config_define(monitor_signal_pdeath);
71e287ca 116lxc_config_define(mount);
117lxc_config_define(mount_auto);
47148e96 118lxc_config_define(mount_fstab);
1d8d3676 119lxc_config_define(namespace_clone);
abeb5bba 120lxc_config_define(namespace_keep);
b074bbf1 121lxc_config_define(namespace_share);
63bab717 122lxc_config_define(net);
71e287ca 123lxc_config_define(net_flags);
71e287ca 124lxc_config_define(net_hwaddr);
9ff60df2 125lxc_config_define(net_ipv4_address);
71e287ca 126lxc_config_define(net_ipv4_gateway);
2e44ae28 127lxc_config_define(net_ipv6_address);
71e287ca 128lxc_config_define(net_ipv6_gateway);
63bab717
CB		 129lxc_config_define(net_link);
130lxc_config_define(net_macvlan_mode);
131lxc_config_define(net_mtu);
132lxc_config_define(net_name);
71e287ca 133lxc_config_define(net_nic);
63bab717
CB		 134lxc_config_define(net_script_down);
135lxc_config_define(net_script_up);
136lxc_config_define(net_type);
137lxc_config_define(net_veth_pair);
138lxc_config_define(net_vlan_id);
139lxc_config_define(no_new_privs);
63bab717
CB		 140lxc_config_define(personality);
141lxc_config_define(prlimit);
142lxc_config_define(pty_max);
6e54330c 143lxc_config_define(rootfs_managed);
63bab717
CB		 144lxc_config_define(rootfs_mount);
145lxc_config_define(rootfs_options);
146lxc_config_define(rootfs_path);
0b427da0 147lxc_config_define(seccomp_profile);
63bab717 148lxc_config_define(selinux_context);
55c84efc 149lxc_config_define(signal_halt);
150lxc_config_define(signal_reboot);
151lxc_config_define(signal_stop);
71e287ca 152lxc_config_define(start);
63bab717
CB		 153lxc_config_define(tty_max);
154lxc_config_define(tty_dir);
155lxc_config_define(uts_name);
7edd0540 156lxc_config_define(sysctl);
61d7a733 157lxc_config_define(proc);
c2cc9f0a 158
33eb2ec1 159static struct lxc_config_t config_jump_table[] = {
6fba98b5
CB		 160 { "lxc.arch", set_config_personality, get_config_personality, clr_config_personality, },
161 { "lxc.apparmor.profile", set_config_apparmor_profile, get_config_apparmor_profile, clr_config_apparmor_profile, },
162 { "lxc.apparmor.allow_incomplete", set_config_apparmor_allow_incomplete, get_config_apparmor_allow_incomplete, clr_config_apparmor_allow_incomplete, },
1800f924
WB		 163 { "lxc.apparmor.allow_nesting", set_config_apparmor_allow_nesting, get_config_apparmor_allow_nesting, clr_config_apparmor_allow_nesting, },
164 { "lxc.apparmor.raw", set_config_apparmor_raw, get_config_apparmor_raw, clr_config_apparmor_raw, },
6fba98b5
CB		 165 { "lxc.autodev", set_config_autodev, get_config_autodev, clr_config_autodev, },
166 { "lxc.cap.drop", set_config_cap_drop, get_config_cap_drop, clr_config_cap_drop, },
167 { "lxc.cap.keep", set_config_cap_keep, get_config_cap_keep, clr_config_cap_keep, },
168 { "lxc.cgroup2", set_config_cgroup2_controller, get_config_cgroup2_controller, clr_config_cgroup2_controller, },
169 { "lxc.cgroup.dir", set_config_cgroup_dir, get_config_cgroup_dir, clr_config_cgroup_dir, },
9caee129 170 { "lxc.cgroup.relative", set_config_cgroup_relative, get_config_cgroup_relative, clr_config_cgroup_relative, },
6fba98b5 171 { "lxc.cgroup", set_config_cgroup_controller, get_config_cgroup_controller, clr_config_cgroup_controller, },
6fba98b5
CB		 172 { "lxc.console.buffer.size", set_config_console_buffer_size, get_config_console_buffer_size, clr_config_console_buffer_size, },
173 { "lxc.console.logfile", set_config_console_logfile, get_config_console_logfile, clr_config_console_logfile, },
174 { "lxc.console.path", set_config_console_path, get_config_console_path, clr_config_console_path, },
175 { "lxc.console.rotate", set_config_console_rotate, get_config_console_rotate, clr_config_console_rotate, },
861813e5 176 { "lxc.console.size", set_config_console_size, get_config_console_size, clr_config_console_size, },
6fba98b5
CB		 177 { "lxc.environment", set_config_environment, get_config_environment, clr_config_environment, },
178 { "lxc.ephemeral", set_config_ephemeral, get_config_ephemeral, clr_config_ephemeral, },
179 { "lxc.execute.cmd", set_config_execute_cmd, get_config_execute_cmd, clr_config_execute_cmd, },
180 { "lxc.group", set_config_group, get_config_group, clr_config_group, },
181 { "lxc.hook.autodev", set_config_hooks, get_config_hooks, clr_config_hooks, },
182 { "lxc.hook.clone", set_config_hooks, get_config_hooks, clr_config_hooks, },
183 { "lxc.hook.destroy", set_config_hooks, get_config_hooks, clr_config_hooks, },
184 { "lxc.hook.mount", set_config_hooks, get_config_hooks, clr_config_hooks, },
185 { "lxc.hook.post-stop", set_config_hooks, get_config_hooks, clr_config_hooks, },
186 { "lxc.hook.pre-mount", set_config_hooks, get_config_hooks, clr_config_hooks, },
187 { "lxc.hook.pre-start", set_config_hooks, get_config_hooks, clr_config_hooks, },
188 { "lxc.hook.start", set_config_hooks, get_config_hooks, clr_config_hooks, },
189 { "lxc.hook.start-host", set_config_hooks, get_config_hooks, clr_config_hooks, },
190 { "lxc.hook.stop", set_config_hooks, get_config_hooks, clr_config_hooks, },
191 { "lxc.hook.version", set_config_hooks_version, get_config_hooks_version, clr_config_hooks_version, },
192 { "lxc.hook", set_config_hooks, get_config_hooks, clr_config_hooks, },
193 { "lxc.idmap", set_config_idmaps, get_config_idmaps, clr_config_idmaps, },
194 { "lxc.include", set_config_includefiles, get_config_includefiles, clr_config_includefiles, },
195 { "lxc.init.cmd", set_config_init_cmd, get_config_init_cmd, clr_config_init_cmd, },
196 { "lxc.init.gid", set_config_init_gid, get_config_init_gid, clr_config_init_gid, },
197 { "lxc.init.uid", set_config_init_uid, get_config_init_uid, clr_config_init_uid, },
198 { "lxc.init.cwd", set_config_init_cwd, get_config_init_cwd, clr_config_init_cwd, },
199 { "lxc.log.file", set_config_log_file, get_config_log_file, clr_config_log_file, },
200 { "lxc.log.level", set_config_log_level, get_config_log_level, clr_config_log_level, },
201 { "lxc.log.syslog", set_config_log_syslog, get_config_log_syslog, clr_config_log_syslog, },
202 { "lxc.monitor.unshare", set_config_monitor, get_config_monitor, clr_config_monitor, },
258f8051 203 { "lxc.monitor.signal.pdeath", set_config_monitor_signal_pdeath, get_config_monitor_signal_pdeath, clr_config_monitor_signal_pdeath, },
6fba98b5
CB		 204 { "lxc.mount.auto", set_config_mount_auto, get_config_mount_auto, clr_config_mount_auto, },
205 { "lxc.mount.entry", set_config_mount, get_config_mount, clr_config_mount, },
206 { "lxc.mount.fstab", set_config_mount_fstab, get_config_mount_fstab, clr_config_mount_fstab, },
207 { "lxc.namespace.clone", set_config_namespace_clone, get_config_namespace_clone, clr_config_namespace_clone, },
208 { "lxc.namespace.keep", set_config_namespace_keep, get_config_namespace_keep, clr_config_namespace_keep, },
209 { "lxc.namespace.share", set_config_namespace_share, get_config_namespace_share, clr_config_namespace_share, },
210 { "lxc.net.flags", set_config_net_flags, get_config_net_flags, clr_config_net_flags, },
211 { "lxc.net.hwaddr", set_config_net_hwaddr, get_config_net_hwaddr, clr_config_net_hwaddr, },
212 { "lxc.net.ipv4.address", set_config_net_ipv4_address, get_config_net_ipv4_address, clr_config_net_ipv4_address, },
213 { "lxc.net.ipv4.gateway", set_config_net_ipv4_gateway, get_config_net_ipv4_gateway, clr_config_net_ipv4_gateway, },
214 { "lxc.net.ipv6.address", set_config_net_ipv6_address, get_config_net_ipv6_address, clr_config_net_ipv6_address, },
215 { "lxc.net.ipv6.gateway", set_config_net_ipv6_gateway, get_config_net_ipv6_gateway, clr_config_net_ipv6_gateway, },
216 { "lxc.net.link", set_config_net_link, get_config_net_link, clr_config_net_link, },
217 { "lxc.net.macvlan.mode", set_config_net_macvlan_mode, get_config_net_macvlan_mode, clr_config_net_macvlan_mode, },
218 { "lxc.net.mtu", set_config_net_mtu, get_config_net_mtu, clr_config_net_mtu, },
219 { "lxc.net.name", set_config_net_name, get_config_net_name, clr_config_net_name, },
220 { "lxc.net.script.down", set_config_net_script_down, get_config_net_script_down, clr_config_net_script_down, },
221 { "lxc.net.script.up", set_config_net_script_up, get_config_net_script_up, clr_config_net_script_up, },
222 { "lxc.net.type", set_config_net_type, get_config_net_type, clr_config_net_type, },
223 { "lxc.net.vlan.id", set_config_net_vlan_id, get_config_net_vlan_id, clr_config_net_vlan_id, },
224 { "lxc.net.veth.pair", set_config_net_veth_pair, get_config_net_veth_pair, clr_config_net_veth_pair, },
225 { "lxc.net.", set_config_net_nic, get_config_net_nic, clr_config_net_nic, },
226 { "lxc.net", set_config_net, get_config_net, clr_config_net, },
227 { "lxc.no_new_privs", set_config_no_new_privs, get_config_no_new_privs, clr_config_no_new_privs, },
228 { "lxc.prlimit", set_config_prlimit, get_config_prlimit, clr_config_prlimit, },
229 { "lxc.pty.max", set_config_pty_max, get_config_pty_max, clr_config_pty_max, },
6e54330c 230 { "lxc.rootfs.managed", set_config_rootfs_managed, get_config_rootfs_managed, clr_config_rootfs_managed, },
6fba98b5
CB		 231 { "lxc.rootfs.mount", set_config_rootfs_mount, get_config_rootfs_mount, clr_config_rootfs_mount, },
232 { "lxc.rootfs.options", set_config_rootfs_options, get_config_rootfs_options, clr_config_rootfs_options, },
233 { "lxc.rootfs.path", set_config_rootfs_path, get_config_rootfs_path, clr_config_rootfs_path, },
234 { "lxc.seccomp.profile", set_config_seccomp_profile, get_config_seccomp_profile, clr_config_seccomp_profile, },
235 { "lxc.selinux.context", set_config_selinux_context, get_config_selinux_context, clr_config_selinux_context, },
236 { "lxc.signal.halt", set_config_signal_halt, get_config_signal_halt, clr_config_signal_halt, },
237 { "lxc.signal.reboot", set_config_signal_reboot, get_config_signal_reboot, clr_config_signal_reboot, },
238 { "lxc.signal.stop", set_config_signal_stop, get_config_signal_stop, clr_config_signal_stop, },
239 { "lxc.start.auto", set_config_start, get_config_start, clr_config_start, },
240 { "lxc.start.delay", set_config_start, get_config_start, clr_config_start, },
241 { "lxc.start.order", set_config_start, get_config_start, clr_config_start, },
242 { "lxc.tty.dir", set_config_tty_dir, get_config_tty_dir, clr_config_tty_dir, },
243 { "lxc.tty.max", set_config_tty_max, get_config_tty_max, clr_config_tty_max, },
244 { "lxc.uts.name", set_config_uts_name, get_config_uts_name, clr_config_uts_name, },
245 { "lxc.sysctl", set_config_sysctl, get_config_sysctl, clr_config_sysctl, },
246 { "lxc.proc", set_config_proc, get_config_proc, clr_config_proc, },
a84b9932
AV		 247};
248
33eb2ec1 249static const size_t config_jump_table_size = sizeof(config_jump_table) / sizeof(struct lxc_config_t);
c2cc9f0a 250
300df83e 251struct lxc_config_t *lxc_get_config(const char *key)
c2cc9f0a 252{
84760c11 253 size_t i;
c2cc9f0a 254
33eb2ec1
CB		 255 for (i = 0; i < config_jump_table_size; i++)
256 if (!strncmp(config_jump_table[i].name, key, strlen(config_jump_table[i].name)))
257 return &config_jump_table[i];
300df83e 258
c2cc9f0a 259 return NULL;
260}
261
f9373e40
CB		 262static int set_config_net(const char *key, const char *value,
263 struct lxc_conf *lxc_conf, void *data)
6b0d5538 264{
663e9916 265 if (!lxc_config_value_empty(value)) {
f9373e40 266 ERROR("lxc.net must not have a value");
6b0d5538
SH		 267 return -1;
268 }
269
f9373e40 270 return clr_config_net(key, lxc_conf, data);
6b0d5538
SH		 271}
272
f9373e40
CB		 273static int set_config_net_type(const char *key, const char *value,
274 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 275{
070a05af 276 struct lxc_netdev *netdev = data;
c2cc9f0a 277
663e9916 278 if (lxc_config_value_empty(value))
f9373e40 279 return clr_config_net_type(key, lxc_conf, data);
c302b476 280
bbc079cf 281 if (!netdev)
c2cc9f0a 282 return -1;
c2cc9f0a 283
bbc079cf 284 if (!strcmp(value, "veth")) {
24654103 285 netdev->type = LXC_NET_VETH;
bbc079cf 286 } else if (!strcmp(value, "macvlan")) {
24654103 287 netdev->type = LXC_NET_MACVLAN;
9b0df30f
CB		 288 lxc_macvlan_mode_to_flag(&netdev->priv.macvlan_attr.mode,
289 "private");
bbc079cf 290 } else if (!strcmp(value, "vlan")) {
24654103 291 netdev->type = LXC_NET_VLAN;
bbc079cf 292 } else if (!strcmp(value, "phys")) {
24654103 293 netdev->type = LXC_NET_PHYS;
bbc079cf 294 } else if (!strcmp(value, "empty")) {
24654103 295 netdev->type = LXC_NET_EMPTY;
bbc079cf 296 } else if (!strcmp(value, "none")) {
26b797f3 297 netdev->type = LXC_NET_NONE;
bbc079cf 298 } else {
47903908 299 ERROR("Invalid network type %s", value);
c2cc9f0a 300 return -1;
301 }
bbc079cf 302
c2cc9f0a 303 return 0;
304}
305
f9373e40
CB		 306static int set_config_net_flags(const char *key, const char *value,
307 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 308{
070a05af 309 struct lxc_netdev *netdev = data;
c2cc9f0a 310
9d4bf22d 311 if (lxc_config_value_empty(value))
f9373e40 312 return clr_config_net_flags(key, lxc_conf, data);
9d4bf22d 313
33c945e0 314 if (!netdev)
c2cc9f0a 315 return -1;
c2cc9f0a 316
33c945e0 317 netdev->flags |= IFF_UP;
c2cc9f0a 318
33c945e0
MT		 319 return 0;
320}
321
b45e32f9 322static int create_matched_ifnames(const char *value, struct lxc_conf *lxc_conf,
d5aba460 323 struct lxc_netdev *netdev)
576400e5 324{
b1e44ed1 325 struct netns_ifaddrs *ifaddr, *ifa;
504a2217
CB		 326 int n;
327 int ret = 0;
f9373e40
CB		 328 const char *type_key = "lxc.net.type";
329 const char *link_key = "lxc.net.link";
576400e5 330 const char *tmpvalue = "phys";
576400e5 331
b1e44ed1 332 if (netns_getifaddrs(&ifaddr, -1, &(bool){false}) < 0) {
47903908 333 SYSERROR("Failed to get network interfaces");
576400e5 334 return -1;
335 }
336
337 for (ifa = ifaddr, n = 0; ifa != NULL; ifa = ifa->ifa_next, n++) {
338 if (!ifa->ifa_addr)
339 continue;
47903908 340
576400e5 341 if (ifa->ifa_addr->sa_family != AF_PACKET)
342 continue;
343
504a2217 344 if (!strncmp(value, ifa->ifa_name, strlen(value) - 1)) {
f9373e40
CB		 345 ret = set_config_net_type(type_key, tmpvalue, lxc_conf,
346 netdev);
576400e5 347 if (!ret) {
f9373e40 348 ret = set_config_net_link(
c302b476 349 link_key, ifa->ifa_name, lxc_conf, netdev);
576400e5 350 if (ret) {
47903908 351 ERROR("Failed to create matched ifnames");
576400e5 352 break;
353 }
354 } else {
47903908 355 ERROR("Failed to create matched ifnames");
576400e5 356 break;
357 }
358 }
359 }
360
b1e44ed1 361 netns_freeifaddrs(ifaddr);
504a2217 362 ifaddr = NULL;
091045f8 363
576400e5 364 return ret;
365}
366
f9373e40
CB		 367static int set_config_net_link(const char *key, const char *value,
368 struct lxc_conf *lxc_conf, void *data)
33c945e0 369{
070a05af 370 struct lxc_netdev *netdev = data;
576400e5 371 int ret = 0;
33c945e0 372
6bed0fb6 373 if (lxc_config_value_empty(value))
f9373e40 374 return clr_config_net_link(key, lxc_conf, data);
6bed0fb6 375
33c945e0 376 if (!netdev)
c2cc9f0a 377 return -1;
c2cc9f0a 378
b45e32f9
CB		 379 if (value[strlen(value) - 1] == '+' && netdev->type == LXC_NET_PHYS)
380 ret = create_matched_ifnames(value, lxc_conf, netdev);
381 else
18cd4b54 382 ret = network_ifname(netdev->link, value, sizeof(netdev->link));
576400e5 383
384 return ret;
c2cc9f0a 385}
386
f9373e40
CB		 387static int set_config_net_name(const char *key, const char *value,
388 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 389{
070a05af 390 struct lxc_netdev *netdev = data;
c2cc9f0a 391
6bed0fb6 392 if (lxc_config_value_empty(value))
f9373e40 393 return clr_config_net_name(key, lxc_conf, data);
6bed0fb6 394
33c945e0 395 if (!netdev)
c2cc9f0a 396 return -1;
c2cc9f0a 397
18cd4b54 398 return network_ifname(netdev->name, value, sizeof(netdev->name));
33c945e0
MT		 399}
400
f9373e40
CB		 401static int set_config_net_veth_pair(const char *key, const char *value,
402 struct lxc_conf *lxc_conf, void *data)
e892973e 403{
070a05af 404 struct lxc_netdev *netdev = data;
e892973e 405
6bed0fb6 406 if (lxc_config_value_empty(value))
f9373e40 407 return clr_config_net_veth_pair(key, lxc_conf, data);
6bed0fb6 408
e892973e
DL		 409 if (!netdev)
410 return -1;
411
18cd4b54 412 return network_ifname(netdev->priv.veth_attr.pair, value, sizeof(netdev->priv.veth_attr.pair));
e892973e
DL		 413}
414
f9373e40
CB		 415static int set_config_net_macvlan_mode(const char *key, const char *value,
416 struct lxc_conf *lxc_conf, void *data)
8634bc19 417{
070a05af 418 struct lxc_netdev *netdev = data;
8634bc19 419
6bed0fb6 420 if (lxc_config_value_empty(value))
f9373e40 421 return clr_config_net_macvlan_mode(key, lxc_conf, data);
6bed0fb6 422
8634bc19
MT		 423 if (!netdev)
424 return -1;
425
9b0df30f 426 return lxc_macvlan_mode_to_flag(&netdev->priv.macvlan_attr.mode, value);
8634bc19
MT		 427}
428
f9373e40
CB		 429static int set_config_net_hwaddr(const char *key, const char *value,
430 struct lxc_conf *lxc_conf, void *data)
33c945e0 431{
070a05af 432 struct lxc_netdev *netdev = data;
504a2217 433 char *new_value;
33c945e0 434
6bed0fb6 435 if (lxc_config_value_empty(value))
f9373e40 436 return clr_config_net_hwaddr(key, lxc_conf, data);
6bed0fb6 437
ecbb3790
CB		 438 if (!netdev)
439 return -1;
440
504a2217 441 new_value = strdup(value);
d5aba460 442 if (!new_value)
c2cc9f0a 443 return -1;
d5aba460 444
508c263e 445 rand_complete_hwaddr(new_value);
c2cc9f0a 446
663e9916 447 if (lxc_config_value_empty(new_value)) {
508c263e
SH		 448 free(new_value);
449 netdev->hwaddr = NULL;
450 return 0;
451 }
452
453 netdev->hwaddr = new_value;
47903908 454
508c263e 455 return 0;
c2cc9f0a 456}
457
f9373e40
CB		 458static int set_config_net_vlan_id(const char *key, const char *value,
459 struct lxc_conf *lxc_conf, void *data)
26c39028 460{
d5aba460 461 int ret;
070a05af 462 struct lxc_netdev *netdev = data;
26c39028 463
6bed0fb6 464 if (lxc_config_value_empty(value))
f9373e40 465 return clr_config_net_vlan_id(key, lxc_conf, data);
6bed0fb6 466
26c39028
JHS		 467 if (!netdev)
468 return -1;
469
d5aba460
CB		 470 ret = get_u16(&netdev->priv.vlan_attr.vid, value, 0);
471 if (ret < 0)
26c39028
JHS		 472 return -1;
473
474 return 0;
475}
476
f9373e40
CB		 477static int set_config_net_mtu(const char *key, const char *value,
478 struct lxc_conf *lxc_conf, void *data)
442cbbe6 479{
070a05af 480 struct lxc_netdev *netdev = data;
442cbbe6 481
6bed0fb6 482 if (lxc_config_value_empty(value))
f9373e40 483 return clr_config_net_mtu(key, lxc_conf, data);
6bed0fb6 484
33c945e0 485 if (!netdev)
442cbbe6 486 return -1;
442cbbe6 487
713046e3 488 return set_config_string_item(&netdev->mtu, value);
442cbbe6
TR		 489}
490
9ff60df2
CB		 491static int set_config_net_ipv4_address(const char *key, const char *value,
492 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 493{
d5aba460 494 int ret;
070a05af 495 struct lxc_netdev *netdev = data;
33c945e0 496 struct lxc_inetdev *inetdev;
c2cc9f0a 497 struct lxc_list *list;
504a2217
CB		 498 char *cursor, *slash;
499 char *addr = NULL, *bcast = NULL, *prefix = NULL;
c2cc9f0a 500
663e9916 501 if (lxc_config_value_empty(value))
9ff60df2 502 return clr_config_net_ipv4_address(key, lxc_conf, data);
0797e123 503
33c945e0 504 if (!netdev)
c2cc9f0a 505 return -1;
c2cc9f0a 506
507 inetdev = malloc(sizeof(*inetdev));
d5aba460 508 if (!inetdev)
c2cc9f0a 509 return -1;
c2cc9f0a 510 memset(inetdev, 0, sizeof(*inetdev));
511
512 list = malloc(sizeof(*list));
513 if (!list) {
53719062 514 free(inetdev);
c2cc9f0a 515 return -1;
516 }
517
518 lxc_list_init(list);
519 list->elem = inetdev;
520
956edc54
SG		 521 addr = strdup(value);
522 if (!addr) {
53719062
SH		 523 free(inetdev);
524 free(list);
956edc54
SG		 525 return -1;
526 }
c2cc9f0a 527
528 cursor = strstr(addr, " ");
529 if (cursor) {
530 *cursor = '\0';
531 bcast = cursor + 1;
532 }
533
534 slash = strstr(addr, "/");
535 if (slash) {
536 *slash = '\0';
537 prefix = slash + 1;
538 }
539
d5aba460
CB		 540 ret = inet_pton(AF_INET, addr, &inetdev->addr);
541 if (!ret || ret < 0) {
542 SYSERROR("Invalid ipv4 address \"%s\"", value);
53719062 543 free(inetdev);
956edc54 544 free(addr);
53719062 545 free(list);
c2cc9f0a 546 return -1;
547 }
548
d5aba460
CB		 549 if (bcast) {
550 ret = inet_pton(AF_INET, bcast, &inetdev->bcast);
551 if (!ret || ret < 0) {
552 SYSERROR("Invalid ipv4 broadcast address \"%s\"", value);
553 free(inetdev);
554 free(list);
555 free(addr);
556 return -1;
557 }
558
0093bb8c 559 }
c2cc9f0a 560
504a2217 561 /* No prefix specified, determine it from the network class. */
1c633398 562 if (prefix) {
d5aba460 563 ret = lxc_safe_uint(prefix, &inetdev->prefix);
aa7c5841
DJ		 564 if (ret < 0) {
565 free(inetdev);
566 free(list);
567 free(addr);
1c633398 568 return -1;
aa7c5841 569 }
1c633398
CB		 570 } else {
571 inetdev->prefix = config_ip_prefix(&inetdev->addr);
572 }
a059591e 573
504a2217
CB		 574 /* If no broadcast address, let compute one from the
575 * prefix and address.
0093bb8c
DL		 576 */
577 if (!bcast) {
1b7d4743 578 inetdev->bcast.s_addr = inetdev->addr.s_addr;
d5aba460 579 inetdev->bcast.s_addr |= htonl(INADDR_BROADCAST >> inetdev->prefix);
0093bb8c 580 }
c2cc9f0a 581
8538f388 582 lxc_list_add_tail(&netdev->ipv4, list);
956edc54 583 free(addr);
47903908 584
c2cc9f0a 585 return 0;
586}
587
f9373e40
CB		 588static int set_config_net_ipv4_gateway(const char *key, const char *value,
589 struct lxc_conf *lxc_conf, void *data)
f8fee0e2 590{
070a05af 591 struct lxc_netdev *netdev = data;
f8fee0e2 592
6bed0fb6 593 if (lxc_config_value_empty(value))
f9373e40 594 return clr_config_net_ipv4_gateway(key, lxc_conf, data);
6bed0fb6 595
f8fee0e2
MK		 596 if (!netdev)
597 return -1;
598
e088e926 599 free(netdev->ipv4_gateway);
f8fee0e2 600
ab6faf2e 601 if (!strcmp(value, "auto")) {
19a26f82
MK		 602 netdev->ipv4_gateway = NULL;
603 netdev->ipv4_gateway_auto = true;
604 } else {
25a908b8 605 int ret;
e088e926
SG		 606 struct in_addr *gw;
607
608 gw = malloc(sizeof(*gw));
25a908b8 609 if (!gw)
e088e926 610 return -1;
e088e926 611
25a908b8
CB		 612 ret = inet_pton(AF_INET, value, gw);
613 if (!ret || ret < 0) {
614 SYSERROR("Invalid ipv4 gateway address \"%s\"", value);
53719062 615 free(gw);
19a26f82
MK		 616 return -1;
617 }
618
619 netdev->ipv4_gateway = gw;
620 netdev->ipv4_gateway_auto = false;
f8fee0e2
MK		 621 }
622
f8fee0e2
MK		 623 return 0;
624}
625
2e44ae28
CB		 626static int set_config_net_ipv6_address(const char *key, const char *value,
627 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 628{
25a908b8 629 int ret;
070a05af 630 struct lxc_netdev *netdev = data;
c2cc9f0a 631 struct lxc_inet6dev *inet6dev;
632 struct lxc_list *list;
504a2217 633 char *slash, *valdup, *netmask;
c2cc9f0a 634
6bed0fb6 635 if (lxc_config_value_empty(value))
2e44ae28 636 return clr_config_net_ipv6_address(key, lxc_conf, data);
6bed0fb6 637
33c945e0 638 if (!netdev)
c2cc9f0a 639 return -1;
c2cc9f0a 640
641 inet6dev = malloc(sizeof(*inet6dev));
25a908b8 642 if (!inet6dev)
c2cc9f0a 643 return -1;
c2cc9f0a 644 memset(inet6dev, 0, sizeof(*inet6dev));
645
646 list = malloc(sizeof(*list));
647 if (!list) {
28027320 648 free(inet6dev);
c2cc9f0a 649 return -1;
650 }
651
652 lxc_list_init(list);
653 list->elem = inet6dev;
654
956edc54
SG		 655 valdup = strdup(value);
656 if (!valdup) {
28027320
SH		 657 free(list);
658 free(inet6dev);
956edc54
SG		 659 return -1;
660 }
661
a059591e 662 inet6dev->prefix = 64;
12a50cc6 663 slash = strstr(valdup, "/");
c2cc9f0a 664 if (slash) {
665 *slash = '\0';
666 netmask = slash + 1;
47903908 667
f54f8d0b
CB		 668 ret = lxc_safe_uint(netmask, &inet6dev->prefix);
669 if (ret < 0) {
670 free(list);
671 free(inet6dev);
672 free(valdup);
1c633398 673 return -1;
f54f8d0b 674 }
c2cc9f0a 675 }
676
25a908b8
CB		 677 ret = inet_pton(AF_INET6, valdup, &inet6dev->addr);
678 if (!ret || ret < 0) {
679 SYSERROR("Invalid ipv6 address \"%s\"", valdup);
28027320
SH		 680 free(list);
681 free(inet6dev);
956edc54 682 free(valdup);
c2cc9f0a 683 return -1;
684 }
685
8538f388 686 lxc_list_add_tail(&netdev->ipv6, list);
956edc54 687 free(valdup);
47903908 688
c2cc9f0a 689 return 0;
690}
691
f9373e40
CB		 692static int set_config_net_ipv6_gateway(const char *key, const char *value,
693 struct lxc_conf *lxc_conf, void *data)
f8fee0e2 694{
070a05af 695 struct lxc_netdev *netdev = data;
f8fee0e2 696
6bed0fb6 697 if (lxc_config_value_empty(value))
f9373e40 698 return clr_config_net_ipv6_gateway(key, lxc_conf, data);
6bed0fb6 699
f8fee0e2
MK		 700 if (!netdev)
701 return -1;
702
e088e926 703 free(netdev->ipv6_gateway);
f8fee0e2 704
ab6faf2e 705 if (!strcmp(value, "auto")) {
19a26f82
MK		 706 netdev->ipv6_gateway = NULL;
707 netdev->ipv6_gateway_auto = true;
708 } else {
25a908b8 709 int ret;
8fb86a37
SH		 710 struct in6_addr *gw;
711
bec695f3 712 gw = malloc(sizeof(*gw));
25a908b8 713 if (!gw)
bec695f3 714 return -1;
bec695f3 715
25a908b8
CB		 716 ret = inet_pton(AF_INET6, value, gw);
717 if (!ret || ret < 0) {
718 SYSERROR("Invalid ipv6 gateway address \"%s\"", value);
28027320 719 free(gw);
19a26f82
MK		 720 return -1;
721 }
722
723 netdev->ipv6_gateway = gw;
724 netdev->ipv6_gateway_auto = false;
f8fee0e2
MK		 725 }
726
f8fee0e2
MK		 727 return 0;
728}
729
f9373e40
CB		 730static int set_config_net_script_up(const char *key, const char *value,
731 struct lxc_conf *lxc_conf, void *data)
e3b4c4c4 732{
070a05af 733 struct lxc_netdev *netdev = data;
e3b4c4c4 734
6bed0fb6 735 if (lxc_config_value_empty(value))
f9373e40 736 return clr_config_net_script_up(key, lxc_conf, data);
6bed0fb6 737
e3b4c4c4 738 if (!netdev)
504a2217 739 return -1;
e3b4c4c4 740
713046e3 741 return set_config_string_item(&netdev->upscript, value);
8fc8295a
DE		 742}
743
f9373e40
CB		 744static int set_config_net_script_down(const char *key, const char *value,
745 struct lxc_conf *lxc_conf, void *data)
8fc8295a 746{
070a05af 747 struct lxc_netdev *netdev = data;
8fc8295a 748
6bed0fb6 749 if (lxc_config_value_empty(value))
f9373e40 750 return clr_config_net_script_down(key, lxc_conf, data);
6bed0fb6 751
8fc8295a 752 if (!netdev)
504a2217 753 return -1;
8fc8295a 754
713046e3 755 return set_config_string_item(&netdev->downscript, value);
e3b4c4c4
ST		 756}
757
26ddeedd
SH		 758static int add_hook(struct lxc_conf *lxc_conf, int which, char *hook)
759{
760 struct lxc_list *hooklist;
761
762 hooklist = malloc(sizeof(*hooklist));
763 if (!hooklist) {
764 free(hook);
765 return -1;
766 }
504a2217 767
26ddeedd
SH		 768 hooklist->elem = hook;
769 lxc_list_add_tail(&lxc_conf->hooks[which], hooklist);
47903908 770
26ddeedd
SH		 771 return 0;
772}
773
0b427da0
CB		 774static int set_config_seccomp_profile(const char *key, const char *value,
775 struct lxc_conf *lxc_conf, void *data)
8f2c3a70 776{
713046e3 777 return set_config_path_item(&lxc_conf->seccomp, value);
8f2c3a70
SH		 778}
779
5cda27c1
SH		 780static int set_config_execute_cmd(const char *key, const char *value,
781 struct lxc_conf *lxc_conf, void *data)
782{
783 return set_config_path_item(&lxc_conf->execute_cmd, value);
784}
785
713046e3 786static int set_config_init_cmd(const char *key, const char *value,
c7e27aaf 787 struct lxc_conf *lxc_conf, void *data)
67c660d0 788{
713046e3 789 return set_config_path_item(&lxc_conf->init_cmd, value);
67c660d0
SG		 790}
791
3c491553
L		 792static int set_config_init_cwd(const char *key, const char *value,
793 struct lxc_conf *lxc_conf, void *data)
794{
795 return set_config_path_item(&lxc_conf->init_cwd, value);
796}
797
713046e3 798static int set_config_init_uid(const char *key, const char *value,
c7e27aaf 799 struct lxc_conf *lxc_conf, void *data)
72bb04e4 800{
d1e5d636
CB		 801 unsigned int init_uid;
802
663e9916 803 if (lxc_config_value_empty(value)) {
2e7cde40 804 lxc_conf->init_uid = 0;
fee80911 805 return 0;
2e7cde40 806 }
fee80911 807
d1e5d636
CB		 808 if (lxc_safe_uint(value, &init_uid) < 0)
809 return -1;
25a908b8 810
d1e5d636
CB		 811 lxc_conf->init_uid = init_uid;
812
72bb04e4
PT		 813 return 0;
814}
815
713046e3 816static int set_config_init_gid(const char *key, const char *value,
c7e27aaf 817 struct lxc_conf *lxc_conf, void *data)
72bb04e4 818{
d1e5d636
CB		 819 unsigned int init_gid;
820
663e9916 821 if (lxc_config_value_empty(value)) {
2debb6e6 822 lxc_conf->init_gid = 0;
a757cc7d 823 return 0;
2debb6e6 824 }
a757cc7d 825
d1e5d636
CB		 826 if (lxc_safe_uint(value, &init_gid) < 0)
827 return -1;
25a908b8 828
d1e5d636
CB		 829 lxc_conf->init_gid = init_gid;
830
72bb04e4
PT		 831 return 0;
832}
833
466c2e93 834static int set_config_hooks(const char *key, const char *value,
c7e27aaf 835 struct lxc_conf *lxc_conf, void *data)
26ddeedd 836{
7d0eb87e 837 char *copy;
72bb04e4 838
663e9916 839 if (lxc_config_value_empty(value))
7d0eb87e
SH		 840 return lxc_clear_hooks(lxc_conf, key);
841
a182feae 842 if (strcmp(key + 4, "hook") == 0) {
25a908b8 843 ERROR("lxc.hook must not have a value");
6b0d5538
SH		 844 return -1;
845 }
25a908b8 846
7d0eb87e 847 copy = strdup(value);
25a908b8 848 if (!copy)
26ddeedd 849 return -1;
504a2217 850
a182feae 851 if (strcmp(key + 9, "pre-start") == 0)
26ddeedd 852 return add_hook(lxc_conf, LXCHOOK_PRESTART, copy);
08dd2805
SH		 853 else if (strcmp(key + 9, "start-host") == 0)
854 return add_hook(lxc_conf, LXCHOOK_START_HOST, copy);
a182feae 855 else if (strcmp(key + 9, "pre-mount") == 0)
5ea6163a 856 return add_hook(lxc_conf, LXCHOOK_PREMOUNT, copy);
a182feae 857 else if (strcmp(key + 9, "autodev") == 0)
f7bee6c6 858 return add_hook(lxc_conf, LXCHOOK_AUTODEV, copy);
a182feae 859 else if (strcmp(key + 9, "mount") == 0)
26ddeedd 860 return add_hook(lxc_conf, LXCHOOK_MOUNT, copy);
a182feae 861 else if (strcmp(key + 9, "start") == 0)
26ddeedd 862 return add_hook(lxc_conf, LXCHOOK_START, copy);
a182feae 863 else if (strcmp(key + 9, "stop") == 0)
52492063 864 return add_hook(lxc_conf, LXCHOOK_STOP, copy);
a182feae 865 else if (strcmp(key + 9, "post-stop") == 0)
26ddeedd 866 return add_hook(lxc_conf, LXCHOOK_POSTSTOP, copy);
a182feae 867 else if (strcmp(key + 9, "clone") == 0)
148e91f5 868 return add_hook(lxc_conf, LXCHOOK_CLONE, copy);
a182feae 869 else if (strcmp(key + 9, "destroy") == 0)
37cf711b 870 return add_hook(lxc_conf, LXCHOOK_DESTROY, copy);
504a2217 871
26ddeedd 872 free(copy);
47903908 873
26ddeedd
SH		 874 return -1;
875}
876
44ae0fb6
CB		 877static int set_config_hooks_version(const char *key, const char *value,
878 struct lxc_conf *lxc_conf, void *data)
879{
880 int ret;
881 unsigned int tmp;
882
883 if (lxc_config_value_empty(value))
884 return clr_config_hooks_version(key, lxc_conf, NULL);
885
886 ret = lxc_safe_uint(value, &tmp);
887 if (ret < 0)
888 return -1;
889
890 if (tmp > 1) {
891 ERROR("Invalid hook version specified. Currently only 0 "
892 "(legacy) and 1 are supported");
893 return -1;
894 }
895
896 lxc_conf->hooks_version = tmp;
47903908 897
44ae0fb6
CB		 898 return 0;
899}
900
713046e3 901static int set_config_personality(const char *key, const char *value,
c7e27aaf 902 struct lxc_conf *lxc_conf, void *data)
cccc74b5 903{
525f0002 904 signed long personality = lxc_config_parse_arch(value);
cccc74b5 905
525f0002
CS		 906 if (personality >= 0)
907 lxc_conf->personality = personality;
908 else
25a908b8 909 WARN("Unsupported personality \"%s\"", value);
970ab589
DL		 910
911 return 0;
cccc74b5
DL		 912}
913
232763d6
CB		 914static int set_config_pty_max(const char *key, const char *value,
915 struct lxc_conf *lxc_conf, void *data)
10db618d 916{
e528c735
CB		 917 int ret;
918 unsigned int max = 0;
919
663e9916 920 if (lxc_config_value_empty(value)) {
e528c735 921 lxc_conf->pty_max = 0;
884a4580 922 return 0;
ec200ce9 923 }
884a4580 924
e528c735
CB		 925 ret = lxc_safe_uint(value, &max);
926 if (ret < 0)
17919969 927 return -1;
10db618d 928
e528c735 929 lxc_conf->pty_max = max;
47903908 930
10db618d 931 return 0;
932}
933
a182feae
CB		 934/* We only need to check whether the first byte of the key after the lxc.start.
935 * prefix matches our expectations since they fortunately all start with a
936 * different letter. If anything was wrong with the key we would have already
937 * noticed when the callback was called.
938 */
713046e3 939static int set_config_start(const char *key, const char *value,
c7e27aaf 940 struct lxc_conf *lxc_conf, void *data)
ee1e7aa0 941{
ebb80f95
CB		 942 bool is_empty;
943
663e9916 944 is_empty = lxc_config_value_empty(value);
ebb80f95 945
a182feae 946 if (*(key + 10) == 'a') { /* lxc.start.auto */
ebb80f95
CB		 947 if (is_empty) {
948 lxc_conf->start_auto = 0;
949 return 0;
950 }
61ff8fc8 951
3590152f
CB		 952 if (lxc_safe_uint(value, &lxc_conf->start_auto) < 0)
953 return -1;
ebb80f95 954
3590152f
CB		 955 if (lxc_conf->start_auto > 1)
956 return -1;
ebb80f95 957
ee1e7aa0 958 return 0;
a182feae 959 } else if (*(key + 10) == 'd') { /* lxc.start.delay */
ebb80f95
CB		 960 if (is_empty) {
961 lxc_conf->start_delay = 0;
962 return 0;
963 }
964
ebb80f95 965 return lxc_safe_uint(value, &lxc_conf->start_delay);
a182feae 966 } else if (*(key + 10) == 'o') { /* lxc.start.order */
ebb80f95
CB		 967 if (is_empty) {
968 lxc_conf->start_order = 0;
969 return 0;
970 }
971
ebb80f95 972 return lxc_safe_int(value, &lxc_conf->start_order);
ee1e7aa0 973 }
ebb80f95 974
ee1e7aa0
SG		 975 return -1;
976}
977
713046e3 978static int set_config_monitor(const char *key, const char *value,
c7e27aaf 979 struct lxc_conf *lxc_conf, void *data)
a8dfe4e0 980{
663e9916 981 if (lxc_config_value_empty(value)) {
4ad9cd26 982 lxc_conf->monitor_unshare = 0;
a8dfe4e0
WB		 983 return 0;
984 }
4ad9cd26 985
a182feae 986 if (strcmp(key + 12, "unshare") == 0)
4ad9cd26
CB		 987 return lxc_safe_uint(value, &lxc_conf->monitor_unshare);
988
a8dfe4e0
WB		 989 return -1;
990}
991
258f8051
CB		 992static int set_config_monitor_signal_pdeath(const char *key, const char *value,
993 struct lxc_conf *lxc_conf, void *data)
994{
995 if (lxc_config_value_empty(value)) {
996 lxc_conf->monitor_signal_pdeath = 0;
997 return 0;
998 }
999
1000 if (strcmp(key + 12, "signal.pdeath") == 0) {
1001 int sig_n;
1002
1003 sig_n = sig_parse(value);
1004 if (sig_n < 0)
1005 return -1;
1006
1007 lxc_conf->monitor_signal_pdeath = sig_n;
1008 return 0;
1009 }
1010
1011 return -EINVAL;
1012}
1013
713046e3 1014static int set_config_group(const char *key, const char *value,
c7e27aaf 1015 struct lxc_conf *lxc_conf, void *data)
ee1e7aa0 1016{
62dd965e 1017 char *groups, *token;
ee1e7aa0 1018 struct lxc_list *grouplist;
62dd965e 1019 int ret = 0;
ee1e7aa0 1020
663e9916 1021 if (lxc_config_value_empty(value))
ee1e7aa0
SG		 1022 return lxc_clear_groups(lxc_conf);
1023
1024 groups = strdup(value);
25a908b8 1025 if (!groups)
ee1e7aa0 1026 return -1;
ee1e7aa0 1027
25a908b8
CB		 1028 /* In case several groups are specified in a single line split these
1029 * groups in a single element for the list.
504a2217 1030 */
62dd965e 1031 lxc_iterate_parts(token, groups, " \t") {
ee1e7aa0 1032 grouplist = malloc(sizeof(*grouplist));
62dd965e
CB		 1033 if (!grouplist) {
1034 ret = -1;
ee1e7aa0 1035 break;
62dd965e 1036 }
ee1e7aa0
SG		 1037
1038 grouplist->elem = strdup(token);
1039 if (!grouplist->elem) {
ee1e7aa0 1040 free(grouplist);
62dd965e 1041 ret = -1;
ee1e7aa0
SG		 1042 break;
1043 }
1044
1045 lxc_list_add_tail(&lxc_conf->groups, grouplist);
d028235d 1046 }
ee1e7aa0
SG		 1047
1048 free(groups);
47903908 1049
ee1e7aa0
SG		 1050 return ret;
1051}
1052
713046e3 1053static int set_config_environment(const char *key, const char *value,
c7e27aaf 1054 struct lxc_conf *lxc_conf, void *data)
7c661726
MP		 1055{
1056 struct lxc_list *list_item = NULL;
1057
663e9916 1058 if (lxc_config_value_empty(value))
ab799c0b
SG		 1059 return lxc_clear_environment(lxc_conf);
1060
7c661726
MP		 1061 list_item = malloc(sizeof(*list_item));
1062 if (!list_item)
504a2217 1063 goto on_error;
7c661726 1064
5eab47bc
CB		 1065 if (!strchr(value, '=')) {
1066 const char *env_val;
1067 const char *env_key = value;
1068 const char *env_var[3] = {0};
1069
1070 env_val = getenv(env_key);
1071 if (!env_val)
1072 goto on_error;
1073
1074 env_var[0] = env_key;
1075 env_var[1] = env_val;
1076 list_item->elem = lxc_string_join("=", env_var, false);
1077 } else {
1078 list_item->elem = strdup(value);
1079 }
7c661726
MP		 1080
1081 if (!list_item->elem)
504a2217 1082 goto on_error;
7c661726
MP		 1083
1084 lxc_list_add_tail(&lxc_conf->environment, list_item);
1085
1086 return 0;
1087
504a2217 1088on_error:
f10fad2f 1089 free(list_item);
47903908 1090
7c661726
MP		 1091 return -1;
1092}
1093
fe1c5887
CB		 1094static int set_config_tty_max(const char *key, const char *value,
1095 struct lxc_conf *lxc_conf, void *data)
b0a33c1e 1096{
885766f5
CB		 1097 int ret;
1098 unsigned int nbtty = 0;
1099
663e9916 1100 if (lxc_config_value_empty(value)) {
885766f5 1101 lxc_conf->ttys.max = 0;
fb12b12a 1102 return 0;
cb508ee8 1103 }
fb12b12a 1104
885766f5
CB		 1105 ret = lxc_safe_uint(value, &nbtty);
1106 if (ret < 0)
1107 return -1;
1108
1109 lxc_conf->ttys.max = nbtty;
47903908 1110
885766f5 1111 return 0;
b0a33c1e 1112}
1113
42e53c29 1114static int set_config_tty_dir(const char *key, const char *value,
c7e27aaf 1115 struct lxc_conf *lxc_conf, void *data)
7c6ef2a2 1116{
885766f5 1117 return set_config_string_item_max(&lxc_conf->ttys.dir, value,
504a2217 1118 NAME_MAX + 1);
7c6ef2a2
SH		 1119}
1120
953fe44f
CB		 1121static int set_config_apparmor_profile(const char *key, const char *value,
1122 struct lxc_conf *lxc_conf, void *data)
e075f5d9 1123{
713046e3 1124 return set_config_string_item(&lxc_conf->lsm_aa_profile, value);
fe4de9a6
DE		 1125}
1126
953fe44f
CB		 1127static int set_config_apparmor_allow_incomplete(const char *key,
1128 const char *value,
1129 struct lxc_conf *lxc_conf,
1130 void *data)
7aff4f43 1131{
663e9916 1132 if (lxc_config_value_empty(value)) {
cccfa758 1133 lxc_conf->lsm_aa_allow_incomplete = 0;
a678e9fa 1134 return 0;
cccfa758 1135 }
a678e9fa 1136
a56e2df9
CB		 1137 if (lxc_safe_uint(value, &lxc_conf->lsm_aa_allow_incomplete) < 0)
1138 return -1;
7aff4f43 1139
25a908b8 1140 if (lxc_conf->lsm_aa_allow_incomplete > 1)
a56e2df9 1141 return -1;
7aff4f43
SH		 1142
1143 return 0;
1144}
1145
1800f924
WB		 1146static int set_config_apparmor_allow_nesting(const char *key,
1147 const char *value,
1148 struct lxc_conf *lxc_conf,
1149 void *data)
1150{
1151 if (lxc_config_value_empty(value))
1152 return clr_config_apparmor_allow_nesting(key, lxc_conf, NULL);
1153
1154 if (lxc_safe_uint(value, &lxc_conf->lsm_aa_allow_nesting) < 0)
1155 return -1;
1156
1157 if (lxc_conf->lsm_aa_allow_nesting > 1)
1158 return -1;
1159
1160 return 0;
1161}
1162
1163static int set_config_apparmor_raw(const char *key,
1164 const char *value,
1165 struct lxc_conf *lxc_conf,
1166 void *data)
1167{
1168 char *elem;
1169 struct lxc_list *list;
1170
1171 if (lxc_config_value_empty(value))
1172 return lxc_clear_apparmor_raw(lxc_conf);
1173
1174 list = malloc(sizeof(*list));
1175 if (!list) {
1176 errno = ENOMEM;
1177 return -1;
1178 }
1179
1180 elem = strdup(value);
1181 if (!elem) {
1182 free(list);
1183 return -1;
1184 }
1185 list->elem = elem;
1186
1187 lxc_list_add_tail(&lxc_conf->lsm_aa_raw, list);
1188
1189 return 0;
1190}
1191
953fe44f
CB		 1192static int set_config_selinux_context(const char *key, const char *value,
1193 struct lxc_conf *lxc_conf, void *data)
fe4de9a6 1194{
713046e3 1195 return set_config_string_item(&lxc_conf->lsm_se_context, value);
e075f5d9 1196}
e075f5d9 1197
46cc906d 1198static int set_config_log_file(const char *key, const char *value,
c7e27aaf 1199 struct lxc_conf *c, void *data)
4a85ce2a 1200{
6d03d92a
DE		 1201 int ret;
1202
663e9916 1203 if (lxc_config_value_empty(value)) {
0d601acb
CB		 1204 free(c->logfile);
1205 c->logfile = NULL;
1206 return 0;
1207 }
1208
1209 /* Store these values in the lxc_conf, and then try to set for actual
504a2217
CB		 1210 * current logging.
1211 */
713046e3 1212 ret = set_config_path_item(&c->logfile, value);
6d03d92a 1213 if (ret == 0)
858377e4 1214 ret = lxc_log_set_file(&c->logfd, c->logfile);
25a908b8 1215
6d03d92a 1216 return ret;
4a85ce2a
SH		 1217}
1218
46cc906d 1219static int set_config_log_level(const char *key, const char *value,
c7e27aaf 1220 struct lxc_conf *lxc_conf, void *data)
4a85ce2a 1221{
9ea87d5d
SH		 1222 int newlevel;
1223
663e9916 1224 if (lxc_config_value_empty(value)) {
4b73005c 1225 lxc_conf->loglevel = LXC_LOG_LEVEL_NOTSET;
4a85ce2a 1226 return 0;
575b9745 1227 }
4a85ce2a 1228
a56e2df9
CB		 1229 if (value[0] >= '0' && value[0] <= '9') {
1230 if (lxc_safe_int(value, &newlevel) < 0)
1231 return -1;
1232 } else {
9ea87d5d 1233 newlevel = lxc_log_priority_to_int(value);
a56e2df9 1234 }
575b9745 1235
504a2217 1236 /* Store these values in the lxc_conf, and then try to set for actual
575b9745
CB		 1237 * current logging.
1238 */
b40a606e 1239 lxc_conf->loglevel = newlevel;
47903908 1240
858377e4 1241 return lxc_log_set_level(&lxc_conf->loglevel, newlevel);
4a85ce2a
SH		 1242}
1243
713046e3 1244static int set_config_autodev(const char *key, const char *value,
c7e27aaf 1245 struct lxc_conf *lxc_conf, void *data)
c6883f38 1246{
663e9916 1247 if (lxc_config_value_empty(value)) {
1045031e 1248 lxc_conf->autodev = 0;
180abbc0 1249 return 0;
1045031e 1250 }
180abbc0 1251
ff6cb4ed
CB		 1252 if (lxc_safe_uint(value, &lxc_conf->autodev) < 0)
1253 return -1;
c6883f38 1254
25a908b8 1255 if (lxc_conf->autodev > 1)
ff6cb4ed 1256 return -1;
c6883f38
SH		 1257
1258 return 0;
1259}
1260
55c84efc 1261static int set_config_signal_halt(const char *key, const char *value,
c7e27aaf 1262 struct lxc_conf *lxc_conf, void *data)
f0f1d8c0 1263{
62a085fb 1264 int sig_n;
f0f1d8c0 1265
663e9916 1266 if (lxc_config_value_empty(value)) {
c1a64603 1267 lxc_conf->haltsignal = 0;
955912f0 1268 return 0;
c1a64603 1269 }
955912f0 1270
62a085fb 1271 sig_n = sig_parse(value);
f0f1d8c0
DE		 1272 if (sig_n < 0)
1273 return -1;
25a908b8 1274
f0f1d8c0
DE		 1275 lxc_conf->haltsignal = sig_n;
1276
1277 return 0;
1278}
1279
55c84efc 1280static int set_config_signal_reboot(const char *key, const char *value,
c7e27aaf 1281 struct lxc_conf *lxc_conf, void *data)
dd267776 1282{
9d7e7587 1283 int sig_n;
dd267776 1284
663e9916 1285 if (lxc_config_value_empty(value)) {
18fcee44 1286 lxc_conf->rebootsignal = 0;
9d7e7587 1287 return 0;
18fcee44 1288 }
9d7e7587
CB		 1289
1290 sig_n = sig_parse(value);
dd267776
BP		 1291 if (sig_n < 0)
1292 return -1;
25a908b8 1293
dd267776
BP		 1294 lxc_conf->rebootsignal = sig_n;
1295
1296 return 0;
1297}
1298
55c84efc 1299static int set_config_signal_stop(const char *key, const char *value,
c7e27aaf 1300 struct lxc_conf *lxc_conf, void *data)
a84b9932 1301{
6ca6aedd 1302 int sig_n;
a84b9932 1303
663e9916 1304 if (lxc_config_value_empty(value)) {
4100d1a7 1305 lxc_conf->stopsignal = 0;
6ca6aedd 1306 return 0;
4100d1a7 1307 }
6ca6aedd
CB		 1308
1309 sig_n = sig_parse(value);
a84b9932
AV		 1310 if (sig_n < 0)
1311 return -1;
25a908b8 1312
a84b9932
AV		 1313 lxc_conf->stopsignal = sig_n;
1314
1315 return 0;
1316}
1317
54860ed0
CB		 1318static int __set_config_cgroup_controller(const char *key, const char *value,
1319 struct lxc_conf *lxc_conf, int version)
576f946d 1320{
54860ed0
CB		 1321 const char *subkey, *token;
1322 size_t token_len;
bf83c5b9
MS		 1323 struct lxc_list *cglist = NULL;
1324 struct lxc_cgroup *cgelem = NULL;
576f946d 1325
663e9916 1326 if (lxc_config_value_empty(value))
54860ed0
CB		 1327 return lxc_clear_cgroups(lxc_conf, key, version);
1328
1329 if (version == CGROUP2_SUPER_MAGIC) {
1330 token = "lxc.cgroup2.";
1331 token_len = 12;
1332 } else if (version == CGROUP_SUPER_MAGIC) {
1333 token = "lxc.cgroup.";
1334 token_len = 11;
1335 } else {
1336 return -EINVAL;
1337 }
576f946d 1338
54860ed0
CB		 1339 if (strncmp(key, token, token_len) != 0)
1340 return -EINVAL;
a871ff6b 1341
54860ed0
CB		 1342 subkey = key + token_len;
1343 if (*subkey == '\0')
1344 return -EINVAL;
576f946d 1345
1346 cglist = malloc(sizeof(*cglist));
1347 if (!cglist)
bf83c5b9 1348 goto out;
576f946d 1349
1350 cgelem = malloc(sizeof(*cgelem));
bf83c5b9
MS		 1351 if (!cgelem)
1352 goto out;
1353 memset(cgelem, 0, sizeof(*cgelem));
576f946d 1354
1355 cgelem->subsystem = strdup(subkey);
54860ed0
CB		 1356 if (!cgelem->subsystem)
1357 goto out;
bf83c5b9 1358
54860ed0
CB		 1359 cgelem->value = strdup(value);
1360 if (!cgelem->value)
bf83c5b9
MS		 1361 goto out;
1362
54860ed0
CB		 1363 cgelem->version = version;
1364
1365 lxc_list_add_elem(cglist, cgelem);
576f946d 1366
54860ed0
CB		 1367 if (version == CGROUP2_SUPER_MAGIC)
1368 lxc_list_add_tail(&lxc_conf->cgroup2, cglist);
1369 else
1370 lxc_list_add_tail(&lxc_conf->cgroup, cglist);
576f946d 1371
1372 return 0;
bf83c5b9
MS		 1373
1374out:
f10fad2f 1375 free(cglist);
bf83c5b9 1376 if (cgelem) {
f10fad2f 1377 free(cgelem->subsystem);
f10fad2f 1378 free(cgelem->value);
bf83c5b9
MS		 1379 free(cgelem);
1380 }
1381
1382 return -1;
576f946d 1383}
1384
54860ed0
CB		 1385static int set_config_cgroup_controller(const char *key, const char *value,
1386 struct lxc_conf *lxc_conf, void *data)
1387{
1388 return __set_config_cgroup_controller(key, value, lxc_conf,
1389 CGROUP_SUPER_MAGIC);
1390}
1391
1392static int set_config_cgroup2_controller(const char *key, const char *value,
1393 struct lxc_conf *lxc_conf, void *data)
1394{
1395 return __set_config_cgroup_controller(key, value, lxc_conf,
1396 CGROUP2_SUPER_MAGIC);
1397}
1398
1399
43654d34
CB		 1400static int set_config_cgroup_dir(const char *key, const char *value,
1401 struct lxc_conf *lxc_conf, void *data)
1402{
1403 if (lxc_config_value_empty(value))
1404 return clr_config_cgroup_dir(key, lxc_conf, NULL);
1405
43654d34
CB		 1406 return set_config_string_item(&lxc_conf->cgroup_meta.dir, value);
1407}
1408
9caee129
CB		 1409static int set_config_cgroup_relative(const char *key, const char *value,
1410 struct lxc_conf *lxc_conf, void *data)
76f0e2e7
CB		 1411{
1412 unsigned int converted;
1413 int ret;
1414
1415 if (lxc_config_value_empty(value))
9caee129 1416 return clr_config_cgroup_relative(key, lxc_conf, NULL);
76f0e2e7
CB		 1417
1418 ret = lxc_safe_uint(value, &converted);
1419 if (ret < 0)
1420 return -ret;
1421
1422 if (converted == 1) {
9caee129 1423 lxc_conf->cgroup_meta.relative = true;
76f0e2e7
CB		 1424 return 0;
1425 }
1426
1427 if (converted == 0) {
9caee129 1428 lxc_conf->cgroup_meta.relative = false;
76f0e2e7
CB		 1429 return 0;
1430 }
1431
1432 return -EINVAL;
1433}
1434
240d4b74 1435static int set_config_prlimit(const char *key, const char *value,
c7e27aaf 1436 struct lxc_conf *lxc_conf, void *data)
c6d09e15 1437{
c6d09e15
WB		 1438 struct lxc_list *iter;
1439 struct rlimit limit;
71460831 1440 rlim_t limit_value;
504a2217
CB		 1441 struct lxc_list *limlist = NULL;
1442 struct lxc_limit *limelem = NULL;
c6d09e15 1443
663e9916 1444 if (lxc_config_value_empty(value))
c6d09e15
WB		 1445 return lxc_clear_limits(lxc_conf, key);
1446
6333c915 1447 if (strncmp(key, "lxc.prlimit.", STRLITERALLEN("lxc.prlimit.")) != 0)
c6d09e15
WB		 1448 return -1;
1449
6333c915 1450 key += STRLITERALLEN("lxc.prlimit.");
c6d09e15
WB		 1451
1452 /* soft limit comes first in the value */
1453 if (!parse_limit_value(&value, &limit_value))
1454 return -1;
47903908 1455
c6d09e15
WB		 1456 limit.rlim_cur = limit_value;
1457
1458 /* skip spaces and a colon */
1459 while (isspace(*value))
1460 ++value;
504a2217 1461
c6d09e15
WB		 1462 if (*value == ':')
1463 ++value;
1464 else if (*value) /* any other character is an error here */
1465 return -1;
504a2217 1466
c6d09e15
WB		 1467 while (isspace(*value))
1468 ++value;
1469
1470 /* optional hard limit */
1471 if (*value) {
1472 if (!parse_limit_value(&value, &limit_value))
1473 return -1;
47903908 1474
c6d09e15 1475 limit.rlim_max = limit_value;
504a2217 1476
c6d09e15
WB		 1477 /* check for trailing garbage */
1478 while (isspace(*value))
1479 ++value;
504a2217 1480
c6d09e15
WB		 1481 if (*value)
1482 return -1;
1483 } else {
1484 /* a single value sets both hard and soft limit */
1485 limit.rlim_max = limit.rlim_cur;
1486 }
1487
1488 /* find existing list element */
7edd0540 1489 lxc_list_for_each(iter, &lxc_conf->limits) {
c6d09e15
WB		 1490 limelem = iter->elem;
1491 if (!strcmp(key, limelem->resource)) {
1492 limelem->limit = limit;
1493 return 0;
1494 }
1495 }
1496
1497 /* allocate list element */
1498 limlist = malloc(sizeof(*limlist));
1499 if (!limlist)
7edd0540 1500 goto on_error;
2e6e3feb 1501
c6d09e15
WB		 1502 limelem = malloc(sizeof(*limelem));
1503 if (!limelem)
7edd0540 1504 goto on_error;
c6d09e15
WB		 1505 memset(limelem, 0, sizeof(*limelem));
1506
1507 limelem->resource = strdup(key);
1508 if (!limelem->resource)
7edd0540 1509 goto on_error;
c6d09e15 1510
47903908 1511 limelem->limit = limit;
7edd0540 1512 lxc_list_add_elem(limlist, limelem);;
c6d09e15
WB		 1513 lxc_list_add_tail(&lxc_conf->limits, limlist);
1514
1515 return 0;
1516
7edd0540 1517on_error:
c6d09e15 1518 free(limlist);
47903908 1519
c6d09e15
WB		 1520 if (limelem) {
1521 free(limelem->resource);
1522 free(limelem);
1523 }
47903908 1524
c6d09e15
WB		 1525 return -1;
1526}
1527
7edd0540
L		 1528static int set_config_sysctl(const char *key, const char *value,
1529 struct lxc_conf *lxc_conf, void *data)
1530{
1531 struct lxc_list *iter;
e409b214 1532 char *replace_value = NULL;
7edd0540
L		 1533 struct lxc_list *sysctl_list = NULL;
1534 struct lxc_sysctl *sysctl_elem = NULL;
7edd0540
L		 1535
1536 if (lxc_config_value_empty(value))
e409b214 1537 return clr_config_sysctl(key, lxc_conf, NULL);
7edd0540 1538
6333c915 1539 if (strncmp(key, "lxc.sysctl.", STRLITERALLEN("lxc.sysctl.")) != 0)
7edd0540
L		 1540 return -1;
1541
6333c915 1542 key += STRLITERALLEN("lxc.sysctl.");
7edd0540
L		 1543
1544 /* find existing list element */
1545 lxc_list_for_each(iter, &lxc_conf->sysctls) {
1546 sysctl_elem = iter->elem;
e409b214
CB		 1547
1548 if (strcmp(key, sysctl_elem->key) != 0)
1549 continue;
1550
1551 replace_value = strdup(value);
1552 if (!replace_value)
1553 return -1;
1554
1555 free(sysctl_elem->value);
1556 sysctl_elem->value = replace_value;
47903908 1557
e409b214 1558 return 0;
7edd0540
L		 1559 }
1560
1561 /* allocate list element */
1562 sysctl_list = malloc(sizeof(*sysctl_list));
1563 if (!sysctl_list)
1564 goto on_error;
1565
1566 sysctl_elem = malloc(sizeof(*sysctl_elem));
1567 if (!sysctl_elem)
1568 goto on_error;
1569 memset(sysctl_elem, 0, sizeof(*sysctl_elem));
1570
1571 sysctl_elem->key = strdup(key);
1572 if (!sysctl_elem->key)
1573 goto on_error;
1574
1575 sysctl_elem->value = strdup(value);
1576 if (!sysctl_elem->value)
1577 goto on_error;
1578
1579 lxc_list_add_elem(sysctl_list, sysctl_elem);
7edd0540
L		 1580 lxc_list_add_tail(&lxc_conf->sysctls, sysctl_list);
1581
1582 return 0;
1583
1584on_error:
1585 free(sysctl_list);
47903908 1586
7edd0540
L		 1587 if (sysctl_elem) {
1588 free(sysctl_elem->key);
1589 free(sysctl_elem->value);
1590 free(sysctl_elem);
1591 }
47903908 1592
7edd0540 1593 return -1;
7edd0540
L		 1594}
1595
61d7a733
YT		 1596static int set_config_proc(const char *key, const char *value,
1597 struct lxc_conf *lxc_conf, void *data)
1598{
1599 const char *subkey;
1600 struct lxc_list *proclist = NULL;
1601 struct lxc_proc *procelem = NULL;
1602
1603 if (lxc_config_value_empty(value))
1604 return clr_config_proc(key, lxc_conf, NULL);
1605
6333c915 1606 if (strncmp(key, "lxc.proc.", STRLITERALLEN("lxc.proc.")) != 0)
61d7a733
YT		 1607 return -1;
1608
6333c915 1609 subkey = key + STRLITERALLEN("lxc.proc.");
61d7a733
YT		 1610 if (*subkey == '\0')
1611 return -EINVAL;
1612
1613 proclist = malloc(sizeof(*proclist));
1614 if (!proclist)
1615 goto on_error;
1616
1617 procelem = malloc(sizeof(*procelem));
1618 if (!procelem)
1619 goto on_error;
1620 memset(procelem, 0, sizeof(*procelem));
1621
1622 procelem->filename = strdup(subkey);
1623 procelem->value = strdup(value);
1624
1625 if (!procelem->filename || !procelem->value)
1626 goto on_error;
1627
1628 proclist->elem = procelem;
1629
1630 lxc_list_add_tail(&lxc_conf->procs, proclist);
1631
1632 return 0;
1633
1634on_error:
1635 free(proclist);
47903908 1636
61d7a733
YT		 1637 if (procelem) {
1638 free(procelem->filename);
1639 free(procelem->value);
1640 free(procelem);
1641 }
1642
1643 return -1;
1644}
1645
5014ff2e 1646static int set_config_idmaps(const char *key, const char *value,
c7e27aaf 1647 struct lxc_conf *lxc_conf, void *data)
f6d3e3e4 1648{
251d0d2a 1649 unsigned long hostid, nsid, range;
f6d3e3e4 1650 char type;
0b843d35 1651 int ret;
34a7a4c6
CB		 1652 struct lxc_list *idmaplist = NULL;
1653 struct id_map *idmap = NULL;
f6d3e3e4 1654
663e9916 1655 if (lxc_config_value_empty(value))
7d0eb87e
SH		 1656 return lxc_clear_idmaps(lxc_conf);
1657
f6d3e3e4
SH		 1658 idmaplist = malloc(sizeof(*idmaplist));
1659 if (!idmaplist)
34a7a4c6 1660 goto on_error;
f6d3e3e4
SH		 1661
1662 idmap = malloc(sizeof(*idmap));
1663 if (!idmap)
34a7a4c6 1664 goto on_error;
f6d3e3e4
SH		 1665 memset(idmap, 0, sizeof(*idmap));
1666
0b843d35 1667 ret = parse_idmaps(value, &type, &nsid, &hostid, &range);
a8b1ac78 1668 if (ret < 0) {
f37d1c22 1669 ERROR("Failed to parse id mappings");
34a7a4c6 1670 goto on_error;
a8b1ac78 1671 }
34a7a4c6 1672
25a908b8 1673 INFO("Read uid map: type %c nsid %lu hostid %lu range %lu", type, nsid, hostid, range);
ac7725e7 1674 if (type == 'u')
f6d3e3e4 1675 idmap->idtype = ID_TYPE_UID;
ac7725e7 1676 else if (type == 'g')
f6d3e3e4
SH		 1677 idmap->idtype = ID_TYPE_GID;
1678 else
34a7a4c6 1679 goto on_error;
7e60c3f0 1680
f6d3e3e4
SH		 1681 idmap->hostid = hostid;
1682 idmap->nsid = nsid;
1683 idmap->range = range;
7e60c3f0
SG		 1684 idmaplist->elem = idmap;
1685 lxc_list_add_tail(&lxc_conf->id_map, idmaplist);
46ad64ab
CB		 1686
1687 if (!lxc_conf->root_nsuid_map && idmap->idtype == ID_TYPE_UID)
1688 if (idmap->nsid == 0)
1689 lxc_conf->root_nsuid_map = idmap;
1690
4160c3a0 1691 if (!lxc_conf->root_nsgid_map && idmap->idtype == ID_TYPE_GID)
46ad64ab
CB		 1692 if (idmap->nsid == 0)
1693 lxc_conf->root_nsgid_map = idmap;
1694
34a7a4c6 1695 idmap = NULL;
7e60c3f0 1696
f6d3e3e4
SH		 1697 return 0;
1698
34a7a4c6 1699on_error:
f10fad2f 1700 free(idmaplist);
34a7a4c6 1701 free(idmap);
f6d3e3e4
SH		 1702
1703 return -1;
1704}
1705
47148e96
CB		 1706static int set_config_mount_fstab(const char *key, const char *value,
1707 struct lxc_conf *lxc_conf, void *data)
d95db067 1708{
663e9916 1709 if (lxc_config_value_empty(value)) {
47148e96 1710 clr_config_mount_fstab(key, lxc_conf, NULL);
d9192f5d 1711 return -1;
46f3de30 1712 }
6f5685f0 1713
713046e3 1714 return set_config_path_item(&lxc_conf->fstab, value);
d95db067
DE		 1715}
1716
713046e3 1717static int set_config_mount_auto(const char *key, const char *value,
c7e27aaf 1718 struct lxc_conf *lxc_conf, void *data)
368bbc02 1719{
62dd965e 1720 char *autos, *token;
368bbc02
CS		 1721 int i;
1722 int ret = -1;
504a2217
CB		 1723 static struct {
1724 const char *token;
1725 int mask;
1726 int flag;
1727 } allowed_auto_mounts[] = {
6812d833
CB		 1728 { "proc", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_MIXED },
1729 { "proc:mixed", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_MIXED },
1730 { "proc:rw", LXC_AUTO_PROC_MASK, LXC_AUTO_PROC_RW },
1731 { "sys", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_MIXED },
1732 { "sys:ro", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RO },
1733 { "sys:mixed", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_MIXED },
1734 { "sys:rw", LXC_AUTO_SYS_MASK, LXC_AUTO_SYS_RW },
1735 { "cgroup", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_NOSPEC },
1736 { "cgroup:mixed", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_MIXED },
1737 { "cgroup:ro", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RO },
1738 { "cgroup:rw", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RW },
1739 { "cgroup:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_NOSPEC | LXC_AUTO_CGROUP_FORCE },
1740 { "cgroup:mixed:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_MIXED | LXC_AUTO_CGROUP_FORCE },
1741 { "cgroup:ro:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RO | LXC_AUTO_CGROUP_FORCE },
1742 { "cgroup:rw:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_RW | LXC_AUTO_CGROUP_FORCE },
1743 { "cgroup-full", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_NOSPEC },
1744 { "cgroup-full:mixed", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_MIXED },
1745 { "cgroup-full:ro", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RO },
1746 { "cgroup-full:rw", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RW },
1747 { "cgroup-full:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_NOSPEC | LXC_AUTO_CGROUP_FORCE },
1748 { "cgroup-full:mixed:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_MIXED | LXC_AUTO_CGROUP_FORCE },
1749 { "cgroup-full:ro:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RO | LXC_AUTO_CGROUP_FORCE },
1750 { "cgroup-full:rw:force", LXC_AUTO_CGROUP_MASK, LXC_AUTO_CGROUP_FULL_RW | LXC_AUTO_CGROUP_FORCE },
adf0ba1f 1751 { "shmounts:", LXC_AUTO_SHMOUNTS_MASK, LXC_AUTO_SHMOUNTS },
25a908b8 1752 /* For adding anything that is just a single on/off, but has no
3f69fb12
SY		 1753 * options: keep mask and flag identical and just define the enum
1754 * value as an unused bit so far
504a2217 1755 */
3f69fb12 1756 { NULL, 0, 0 }
504a2217 1757 };
368bbc02 1758
663e9916 1759 if (lxc_config_value_empty(value)) {
d9192f5d
SH		 1760 lxc_conf->auto_mounts = 0;
1761 return 0;
1762 }
368bbc02
CS		 1763
1764 autos = strdup(value);
25a908b8 1765 if (!autos)
368bbc02 1766 return -1;
368bbc02 1767
62dd965e 1768 lxc_iterate_parts(token, autos, " \t") {
0d190408
LT		 1769 bool is_shmounts = false;
1770
368bbc02
CS		 1771 for (i = 0; allowed_auto_mounts[i].token; i++) {
1772 if (!strcmp(allowed_auto_mounts[i].token, token))
1773 break;
0d190408 1774
fd14fdb8 1775 if (strcmp("shmounts:", allowed_auto_mounts[i].token) == 0 &&
6333c915 1776 strncmp("shmounts:", token, STRLITERALLEN("shmounts:")) == 0) {
0d190408
LT		 1777 is_shmounts = true;
1778 break;
1779 }
368bbc02
CS		 1780 }
1781
1782 if (!allowed_auto_mounts[i].token) {
25a908b8 1783 ERROR("Invalid filesystem to automount \"%s\"", token);
62dd965e 1784 goto on_error;
368bbc02
CS		 1785 }
1786
b06b8511 1787 lxc_conf->auto_mounts &= ~allowed_auto_mounts[i].mask;
368bbc02 1788 lxc_conf->auto_mounts |= allowed_auto_mounts[i].flag;
47903908 1789
0d190408 1790 if (is_shmounts) {
6333c915 1791 lxc_conf->shmount.path_host = strdup(token + STRLITERALLEN("shmounts:"));
fd14fdb8
LT		 1792 if (!lxc_conf->shmount.path_host) {
1793 SYSERROR("Failed to copy shmounts host path");
62dd965e 1794 goto on_error;
fd14fdb8
LT		 1795 }
1796
7a41e857 1797 if (strcmp(lxc_conf->shmount.path_host, "") == 0) {
0d190408 1798 ERROR("Invalid shmounts path: empty");
62dd965e 1799 goto on_error;
0d190408 1800 }
fd14fdb8 1801
7a41e857 1802 lxc_conf->shmount.path_cont = strdup("/dev/.lxc-mounts");
fd14fdb8
LT		 1803 if(!lxc_conf->shmount.path_cont) {
1804 SYSERROR("Failed to copy shmounts container path");
62dd965e 1805 goto on_error;
fd14fdb8 1806 }
0d190408 1807 }
d028235d 1808 }
368bbc02 1809
62dd965e
CB		 1810 ret = 0;
1811
1812on_error:
368bbc02 1813 free(autos);
62dd965e 1814
368bbc02
CS		 1815 return ret;
1816}
1817
713046e3 1818static int set_config_mount(const char *key, const char *value,
c7e27aaf 1819 struct lxc_conf *lxc_conf, void *data)
e7938e9e 1820{
e7938e9e
MN		 1821 char *mntelem;
1822 struct lxc_list *mntlist;
1823
663e9916 1824 if (lxc_config_value_empty(value))
d9192f5d 1825 return lxc_clear_mount_entries(lxc_conf);
e7938e9e
MN		 1826
1827 mntlist = malloc(sizeof(*mntlist));
1828 if (!mntlist)
1829 return -1;
1830
1831 mntelem = strdup(value);
00b6be44
SH		 1832 if (!mntelem) {
1833 free(mntlist);
bf83c5b9 1834 return -1;
00b6be44 1835 }
e7938e9e
MN		 1836 mntlist->elem = mntelem;
1837
1838 lxc_list_add_tail(&lxc_conf->mount_list, mntlist);
1839
1840 return 0;
1841}
1842
0d190408
LT		 1843int add_elem_to_mount_list(const char *value, struct lxc_conf *lxc_conf) {
1844 return set_config_mount(NULL, value, lxc_conf, NULL);
1845}
1846
713046e3 1847static int set_config_cap_keep(const char *key, const char *value,
c7e27aaf 1848 struct lxc_conf *lxc_conf, void *data)
1fb86a7c 1849{
62dd965e 1850 char *keepcaps, *token;
1fb86a7c
SH		 1851 struct lxc_list *keeplist;
1852 int ret = -1;
1853
663e9916 1854 if (lxc_config_value_empty(value))
7d0eb87e 1855 return lxc_clear_config_keepcaps(lxc_conf);
1fb86a7c
SH		 1856
1857 keepcaps = strdup(value);
25a908b8 1858 if (!keepcaps)
1fb86a7c 1859 return -1;
1fb86a7c 1860
504a2217
CB		 1861 /* In case several capability keep is specified in a single line
1862 * split these caps in a single element for the list.
1863 */
62dd965e 1864 lxc_iterate_parts(token, keepcaps, " \t") {
7035407c
DE		 1865 if (!strcmp(token, "none"))
1866 lxc_clear_config_keepcaps(lxc_conf);
1867
1fb86a7c 1868 keeplist = malloc(sizeof(*keeplist));
25a908b8 1869 if (!keeplist)
62dd965e 1870 goto on_error;
1fb86a7c
SH		 1871
1872 keeplist->elem = strdup(token);
1873 if (!keeplist->elem) {
1fb86a7c 1874 free(keeplist);
62dd965e 1875 goto on_error;
1fb86a7c
SH		 1876 }
1877
1878 lxc_list_add_tail(&lxc_conf->keepcaps, keeplist);
d028235d 1879 }
1fb86a7c 1880
62dd965e
CB		 1881 ret = 0;
1882
1883on_error:
1fb86a7c
SH		 1884 free(keepcaps);
1885
1886 return ret;
1887}
1888
713046e3 1889static int set_config_cap_drop(const char *key, const char *value,
c7e27aaf 1890 struct lxc_conf *lxc_conf, void *data)
81810dd1 1891{
62dd965e 1892 char *dropcaps, *token;
81810dd1
DL		 1893 struct lxc_list *droplist;
1894 int ret = -1;
1895
663e9916 1896 if (lxc_config_value_empty(value))
7d0eb87e 1897 return lxc_clear_config_caps(lxc_conf);
81810dd1
DL		 1898
1899 dropcaps = strdup(value);
25a908b8 1900 if (!dropcaps)
81810dd1 1901 return -1;
81810dd1 1902
504a2217
CB		 1903 /* In case several capability drop is specified in a single line
1904 * split these caps in a single element for the list.
1905 */
62dd965e 1906 lxc_iterate_parts(token, dropcaps, " \t") {
81810dd1 1907 droplist = malloc(sizeof(*droplist));
25a908b8 1908 if (!droplist)
62dd965e 1909 goto on_error;
81810dd1
DL		 1910
1911 droplist->elem = strdup(token);
1912 if (!droplist->elem) {
81810dd1 1913 free(droplist);
62dd965e 1914 goto on_error;
81810dd1
DL		 1915 }
1916
1917 lxc_list_add_tail(&lxc_conf->caps, droplist);
d028235d 1918 }
81810dd1 1919
62dd965e
CB		 1920 ret = 0;
1921
1922on_error:
81810dd1
DL		 1923 free(dropcaps);
1924
1925 return ret;
1926}
1927
3aed4934
CB		 1928static int set_config_console_path(const char *key, const char *value,
1929 struct lxc_conf *lxc_conf, void *data)
28a4b0e5 1930{
713046e3 1931 return set_config_path_item(&lxc_conf->console.path, value);
28a4b0e5
DL		 1932}
1933
d91adfa6
CB		 1934static int set_config_console_rotate(const char *key, const char *value,
1935 struct lxc_conf *lxc_conf, void *data)
1936{
1937 if (lxc_config_value_empty(value)) {
1938 lxc_conf->console.log_rotate = 0;
1939 return 0;
1940 }
1941
1942 if (lxc_safe_uint(value, &lxc_conf->console.log_rotate) < 0)
1943 return -1;
1944
966b9ecd
CB		 1945 if (lxc_conf->console.log_rotate > 1) {
1946 ERROR("The \"lxc.console.rotate\" config key can only be set "
1947 "to 0 or 1");
d91adfa6 1948 return -1;
966b9ecd 1949 }
d91adfa6
CB		 1950
1951 return 0;
1952}
1953
713046e3 1954static int set_config_console_logfile(const char *key, const char *value,
c7e27aaf 1955 struct lxc_conf *lxc_conf, void *data)
96f15ca1 1956{
713046e3 1957 return set_config_path_item(&lxc_conf->console.log_path, value);
96f15ca1
SH		 1958}
1959
28f3b1cd
CB		 1960static int set_config_console_buffer_size(const char *key, const char *value,
1961 struct lxc_conf *lxc_conf, void *data)
a04220de
CB		 1962{
1963 int ret;
1964 int64_t size;
28f3b1cd 1965 uint64_t buffer_size, pgsz;
a04220de
CB		 1966
1967 if (lxc_config_value_empty(value)) {
28f3b1cd 1968 lxc_conf->console.buffer_size = 0;
a04220de
CB		 1969 return 0;
1970 }
1971
1972 /* If the user specified "auto" the default log size is 2^17 = 128 Kib */
1973 if (!strcmp(value, "auto")) {
28f3b1cd 1974 lxc_conf->console.buffer_size = 1 << 17;
a04220de
CB		 1975 return 0;
1976 }
1977
1978 ret = parse_byte_size_string(value, &size);
1979 if (ret < 0)
1980 return -1;
1981
1982 if (size < 0)
1983 return -EINVAL;
1984
1985 /* must be at least a page size */
1986 pgsz = lxc_getpagesize();
1987 if ((uint64_t)size < pgsz) {
1988 NOTICE("Requested ringbuffer size for the console is %" PRId64
1989 " but must be at least %" PRId64
1990 " bytes. Setting ringbuffer size to %" PRId64 " bytes",
1991 size, pgsz, pgsz);
1992 size = pgsz;
1993 }
1994
28f3b1cd
CB		 1995 buffer_size = lxc_find_next_power2((uint64_t)size);
1996 if (buffer_size == 0)
a04220de
CB		 1997 return -EINVAL;
1998
28f3b1cd 1999 if (buffer_size != size)
a04220de 2000 NOTICE("Passed size was not a power of 2. Rounding log size to "
28f3b1cd 2001 "next power of two: %" PRIu64 " bytes", buffer_size);
a04220de 2002
28f3b1cd 2003 lxc_conf->console.buffer_size = buffer_size;
47903908 2004
a04220de
CB		 2005 return 0;
2006}
2007
861813e5
CB		 2008static int set_config_console_size(const char *key, const char *value,
2009 struct lxc_conf *lxc_conf, void *data)
2010{
2011 int ret;
2012 int64_t size;
2013 uint64_t log_size, pgsz;
2014
2015 if (lxc_config_value_empty(value)) {
2016 lxc_conf->console.log_size = 0;
2017 return 0;
2018 }
2019
2020 /* If the user specified "auto" the default log size is 2^17 = 128 Kib */
2021 if (!strcmp(value, "auto")) {
2022 lxc_conf->console.log_size = 1 << 17;
2023 return 0;
2024 }
2025
2026 ret = parse_byte_size_string(value, &size);
2027 if (ret < 0)
2028 return -1;
2029
2030 if (size < 0)
2031 return -EINVAL;
2032
2033 /* must be at least a page size */
2034 pgsz = lxc_getpagesize();
2035 if ((uint64_t)size < pgsz) {
2036 NOTICE("Requested ringbuffer size for the console is %" PRId64
2037 " but must be at least %" PRId64
2038 " bytes. Setting ringbuffer size to %" PRId64 " bytes",
2039 size, pgsz, pgsz);
2040 size = pgsz;
2041 }
2042
2043 log_size = lxc_find_next_power2((uint64_t)size);
2044 if (log_size == 0)
2045 return -EINVAL;
2046
2047 if (log_size != size)
2048 NOTICE("Passed size was not a power of 2. Rounding log size to "
2049 "next power of two: %" PRIu64 " bytes", log_size);
2050
2051 lxc_conf->console.log_size = log_size;
47903908 2052
861813e5
CB		 2053 return 0;
2054}
2055
6b0d5538 2056int append_unexp_config_line(const char *line, struct lxc_conf *conf)
f979ac15 2057{
62a821f1
CB		 2058 size_t linelen;
2059 size_t len = conf->unexpanded_len;
f979ac15 2060
e6744e9b
SH		 2061 update_hwaddr(line);
2062
62a821f1 2063 linelen = strlen(line);
6b0d5538 2064 while (conf->unexpanded_alloced <= len + linelen + 2) {
504a2217
CB		 2065 char *tmp = realloc(conf->unexpanded_config,
2066 conf->unexpanded_alloced + 1024);
6b0d5538
SH		 2067 if (!tmp)
2068 return -1;
504a2217 2069
6b0d5538
SH		 2070 if (!conf->unexpanded_config)
2071 *tmp = '\0';
62a821f1 2072
6b0d5538
SH		 2073 conf->unexpanded_config = tmp;
2074 conf->unexpanded_alloced += 1024;
2075 }
efed99a4 2076
62a821f1 2077 memcpy(conf->unexpanded_config + conf->unexpanded_len, line, linelen);
6b0d5538 2078 conf->unexpanded_len += linelen;
62a821f1
CB		 2079 if (line[linelen - 1] != '\n')
2080 conf->unexpanded_config[conf->unexpanded_len++] = '\n';
2081 conf->unexpanded_config[conf->unexpanded_len] = '\0';
25a908b8 2082
f979ac15
SH		 2083 return 0;
2084}
2085
e1daebd9
SH		 2086static int do_includedir(const char *dirp, struct lxc_conf *lxc_conf)
2087{
74f96976 2088 struct dirent *direntp;
e1daebd9 2089 DIR *dir;
18740311 2090 char path[PATH_MAX];
504a2217
CB		 2091 int len;
2092 int ret = -1;
e1daebd9
SH		 2093
2094 dir = opendir(dirp);
25a908b8 2095 if (!dir)
e1daebd9 2096 return -1;
e1daebd9 2097
74f96976 2098 while ((direntp = readdir(dir))) {
e1daebd9 2099 const char *fnam;
e1daebd9
SH		 2100
2101 fnam = direntp->d_name;
2102 if (!strcmp(fnam, "."))
2103 continue;
2104
2105 if (!strcmp(fnam, ".."))
2106 continue;
2107
2108 len = strlen(fnam);
504a2217 2109 if (len < 6 || strncmp(fnam + len - 5, ".conf", 5) != 0)
e1daebd9 2110 continue;
25a908b8 2111
18740311
CB		 2112 len = snprintf(path, PATH_MAX, "%s/%s", dirp, fnam);
2113 if (len < 0 || len >= PATH_MAX) {
e1daebd9
SH		 2114 ret = -1;
2115 goto out;
2116 }
2117
2118 ret = lxc_config_read(path, lxc_conf, true);
2119 if (ret < 0)
2120 goto out;
2121 }
2122 ret = 0;
2123
2124out:
25a908b8 2125 closedir(dir);
e1daebd9
SH		 2126
2127 return ret;
2128}
2129
973082f5 2130static int set_config_includefiles(const char *key, const char *value,
c7e27aaf 2131 struct lxc_conf *lxc_conf, void *data)
09ad6246 2132{
663e9916 2133 if (lxc_config_value_empty(value)) {
26471403 2134 clr_config_includefiles(key, lxc_conf, NULL);
616422f1 2135 return 0;
355c5701 2136 }
616422f1 2137
e1daebd9
SH		 2138 if (is_dir(value))
2139 return do_includedir(value, lxc_conf);
2140
6b0d5538 2141 return lxc_config_read(value, lxc_conf, true);
09ad6246
SH		 2142}
2143
7a96a068
CB		 2144static int set_config_rootfs_path(const char *key, const char *value,
2145 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 2146{
693dbdb9
CB		 2147 int ret;
2148 char *dup, *tmp;
2149 const char *container_path;
2150
2151 if (lxc_config_value_empty(value)) {
2152 free(lxc_conf->rootfs.path);
2153 lxc_conf->rootfs.path = NULL;
2154 return 0;
2155 }
2156
2157 dup = strdup(value);
2158 if (!dup)
2159 return -1;
2160
2161 /* Split <storage type>:<container path> into <storage type> and
2162 * <container path>. Set "rootfs.bdev_type" to <storage type> and
2163 * "rootfs.path" to <container path>.
2164 */
2165 tmp = strchr(dup, ':');
2166 if (tmp) {
2167 *tmp = '\0';
47903908 2168
693dbdb9
CB		 2169 ret = set_config_path_item(&lxc_conf->rootfs.bdev_type, dup);
2170 if (ret < 0) {
2171 free(dup);
2172 return -1;
2173 }
47903908 2174
693dbdb9
CB		 2175 tmp++;
2176 container_path = tmp;
2177 } else {
2178 container_path = value;
2179 }
2180
2181 ret = set_config_path_item(&lxc_conf->rootfs.path, container_path);
2182 free(dup);
47903908 2183
693dbdb9 2184 return ret;
c2cc9f0a 2185}
2186
6e54330c
CB		 2187static int set_config_rootfs_managed(const char *key, const char *value,
2188 struct lxc_conf *lxc_conf, void *data)
2189{
2190 unsigned int val = 0;
2191
2192 if (lxc_config_value_empty(value)) {
2193 lxc_conf->rootfs.managed = true;
2194 return 0;
2195 }
2196
2197 if (lxc_safe_uint(value, &val) < 0)
2198 return -EINVAL;
2199
2200 switch (val) {
2201 case 0:
2202 lxc_conf->rootfs.managed = false;
2203 return 0;
2204 case 1:
2205 lxc_conf->rootfs.managed = true;
2206 return 0;
2207 }
2208
2209 return -EINVAL;
2210}
2211
713046e3 2212static int set_config_rootfs_mount(const char *key, const char *value,
c7e27aaf 2213 struct lxc_conf *lxc_conf, void *data)
23b7ea69 2214{
713046e3 2215 return set_config_path_item(&lxc_conf->rootfs.mount, value);
23b7ea69
DL		 2216}
2217
713046e3 2218static int set_config_rootfs_options(const char *key, const char *value,
c7e27aaf 2219 struct lxc_conf *lxc_conf, void *data)
a17b1e65 2220{
3437f95c
CB		 2221 int ret;
2222 unsigned long mflags = 0, pflags = 0;
2223 char *mdata = NULL, *opts = NULL;
2224 struct lxc_rootfs *rootfs = &lxc_conf->rootfs;
2225
2226 ret = parse_mntopts(value, &mflags, &mdata);
2227 if (ret < 0)
2228 return -EINVAL;
2229
2230 ret = parse_propagationopts(value, &pflags);
2231 if (ret < 0) {
2232 free(mdata);
2233 return -EINVAL;
2234 }
2235
2236 ret = set_config_string_item(&opts, value);
2237 if (ret < 0) {
2238 free(mdata);
2239 return -ENOMEM;
2240 }
2241
2242 rootfs->mountflags = mflags | pflags;
2243 rootfs->options = opts;
2244 rootfs->data = mdata;
2245
2246 return 0;
a17b1e65
SG		 2247}
2248
b67771bc 2249static int set_config_uts_name(const char *key, const char *value,
c7e27aaf 2250 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 2251{
2252 struct utsname *utsname;
2253
663e9916 2254 if (lxc_config_value_empty(value)) {
b67771bc 2255 clr_config_uts_name(key, lxc_conf, NULL);
1939e73d 2256 return 0;
00cd8039 2257 }
1939e73d 2258
c2cc9f0a 2259 utsname = malloc(sizeof(*utsname));
25a908b8 2260 if (!utsname)
c2cc9f0a 2261 return -1;
c2cc9f0a 2262
2263 if (strlen(value) >= sizeof(utsname->nodename)) {
b6f24d54 2264 free(utsname);
c2cc9f0a 2265 return -1;
2266 }
2267
43f984ea 2268 (void)strlcpy(utsname->nodename, value, sizeof(utsname->nodename));
f10fad2f 2269 free(lxc_conf->utsname);
c2cc9f0a 2270 lxc_conf->utsname = utsname;
2271
2272 return 0;
2273}
2274
1d8d3676
CB		 2275static int set_config_namespace_clone(const char *key, const char *value,
2276 struct lxc_conf *lxc_conf, void *data)
2277{
62dd965e 2278 char *ns, *token;
1d8d3676 2279 int cloneflag = 0;
1d8d3676
CB		 2280
2281 if (lxc_config_value_empty(value))
2282 return clr_config_namespace_clone(key, lxc_conf, data);
2283
8bc8c715 2284 if (lxc_conf->ns_keep != 0) {
6d1400b5 2285 errno = EINVAL;
2286 SYSERROR("Cannot set both \"lxc.namespace.clone\" and "
2287 "\"lxc.namespace.keep\"");
8bc8c715
CB		 2288 return -EINVAL;
2289 }
2290
1d8d3676
CB		 2291 ns = strdup(value);
2292 if (!ns)
2293 return -1;
1d8d3676 2294
62dd965e 2295 lxc_iterate_parts(token, ns, " \t") {
1d8d3676
CB		 2296 token += lxc_char_left_gc(token, strlen(token));
2297 token[lxc_char_right_gc(token, strlen(token))] = '\0';
2298 cloneflag = lxc_namespace_2_cloneflag(token);
2299 if (cloneflag < 0) {
2300 free(ns);
2301 return -EINVAL;
2302 }
2303 lxc_conf->ns_clone |= cloneflag;
2304 }
2305 free(ns);
2306
2307 return 0;
2308}
2309
abeb5bba
CB		 2310static int set_config_namespace_keep(const char *key, const char *value,
2311 struct lxc_conf *lxc_conf, void *data)
2312{
62dd965e 2313 char *ns, *token;
abeb5bba 2314 int cloneflag = 0;
abeb5bba
CB		 2315
2316 if (lxc_config_value_empty(value))
2317 return clr_config_namespace_keep(key, lxc_conf, data);
2318
8bc8c715 2319 if (lxc_conf->ns_clone != 0) {
6d1400b5 2320 errno = EINVAL;
2321 SYSERROR("Cannot set both \"lxc.namespace.clone\" and "
2322 "\"lxc.namespace.keep\"");
8bc8c715
CB		 2323 return -EINVAL;
2324 }
2325
abeb5bba
CB		 2326 ns = strdup(value);
2327 if (!ns)
2328 return -1;
abeb5bba 2329
62dd965e 2330 lxc_iterate_parts(token, ns, " \t") {
abeb5bba
CB		 2331 token += lxc_char_left_gc(token, strlen(token));
2332 token[lxc_char_right_gc(token, strlen(token))] = '\0';
2333 cloneflag = lxc_namespace_2_cloneflag(token);
2334 if (cloneflag < 0) {
2335 free(ns);
2336 return -EINVAL;
2337 }
2338 lxc_conf->ns_keep |= cloneflag;
2339 }
2340 free(ns);
2341
2342 return 0;
2343}
2344
b074bbf1
CB		 2345static int set_config_namespace_share(const char *key, const char *value,
2346 struct lxc_conf *lxc_conf, void *data)
28d9e29e
CB		 2347{
2348 int ns_idx;
2349 const char *namespace;
2350
2351 if (lxc_config_value_empty(value))
b074bbf1 2352 return clr_config_namespace_share(key, lxc_conf, data);
28d9e29e 2353
6333c915 2354 namespace = key + STRLITERALLEN("lxc.namespace.share.");
28d9e29e
CB		 2355 ns_idx = lxc_namespace_2_ns_idx(namespace);
2356 if (ns_idx < 0)
2357 return ns_idx;
2358
b074bbf1 2359 return set_config_string_item(&lxc_conf->ns_share[ns_idx], value);
28d9e29e
CB		 2360}
2361
6b0d5538
SH		 2362struct parse_line_conf {
2363 struct lxc_conf *conf;
2364 bool from_include;
2365};
4184c3e1 2366
7a7ff0c6 2367static int parse_line(char *buffer, void *data)
c2cc9f0a 2368{
504a2217 2369 char *dot, *key, *line, *linep, *value;
3b13691d
CB		 2370 bool empty_line;
2371 struct lxc_config_t *config;
504a2217 2372 int ret = 0;
3b13691d
CB		 2373 char *dup = buffer;
2374 struct parse_line_conf *plc = data;
c2cc9f0a 2375
3b13691d
CB		 2376 /* If there are newlines in the config file we should keep them. */
2377 empty_line = lxc_is_line_empty(dup);
2378 if (empty_line)
2379 dup = "\n";
c2cc9f0a 2380
25a908b8
CB		 2381 /* We have to dup the buffer otherwise, at the re-exec for reboot we
2382 * modified the original string on the stack by replacing '=' by '\0'
2383 * below.
91480a0f 2384 */
3b13691d 2385 linep = line = strdup(dup);
25a908b8 2386 if (!line)
81192358 2387 return -1;
91480a0f 2388
3b13691d
CB		 2389 if (!plc->from_include) {
2390 ret = append_unexp_config_line(line, plc->conf);
2391 if (ret < 0)
2392 goto on_error;
2393 }
2394
2395 if (empty_line)
327500d4 2396 goto on_error;
6b0d5538 2397
b2718c72 2398 line += lxc_char_left_gc(line, strlen(line));
476d4cf1 2399
4184c3e1
SH		 2400 /* ignore comments */
2401 if (line[0] == '#')
3b13691d 2402 goto on_error;
476d4cf1 2403
6b0d5538
SH		 2404 /* martian option - don't add it to the config itself */
2405 if (strncmp(line, "lxc.", 4))
3b13691d 2406 goto on_error;
4184c3e1 2407
476d4cf1 2408 ret = -1;
c2cc9f0a 2409
3b13691d 2410 dot = strchr(line, '=');
c2cc9f0a 2411 if (!dot) {
3b13691d
CB		 2412 ERROR("Invalid configuration line: %s", line);
2413 goto on_error;
c2cc9f0a 2414 }
a871ff6b 2415
c2cc9f0a 2416 *dot = '\0';
2417 value = dot + 1;
2418
b2718c72 2419 key = line;
2420 key[lxc_char_right_gc(key, strlen(key))] = '\0';
c2cc9f0a 2421
b2718c72 2422 value += lxc_char_left_gc(value, strlen(value));
2423 value[lxc_char_right_gc(value, strlen(value))] = '\0';
c2cc9f0a 2424
bd878dee 2425 if (*value == '\'' || *value == '\"') {
25a908b8
CB		 2426 size_t len;
2427
2428 len = strlen(value);
504a2217
CB		 2429 if (len > 1 && value[len - 1] == *value) {
2430 value[len - 1] = '\0';
bd878dee
SB		 2431 value++;
2432 }
2433 }
2434
300df83e 2435 config = lxc_get_config(key);
c2cc9f0a 2436 if (!config) {
25a908b8 2437 ERROR("Unknown configuration key \"%s\"", key);
3b13691d 2438 goto on_error;
c2cc9f0a 2439 }
2440
bbc079cf 2441 ret = config->set(key, value, plc->conf, NULL);
91480a0f 2442
3b13691d 2443on_error:
81192358 2444 free(linep);
47903908 2445
91480a0f 2446 return ret;
c2cc9f0a 2447}
2448
d899f11b 2449static struct new_config_item *parse_new_conf_line(char *buffer)
2450{
2451 char *dot, *key, *line, *linep, *value;
2452 int ret = 0;
2453 char *dup = buffer;
2454 struct new_config_item *new = NULL;
2455
2456 linep = line = strdup(dup);
2457 if (!line)
2458 return NULL;
2459
2460 line += lxc_char_left_gc(line, strlen(line));
2461
2462 /* martian option - don't add it to the config itself */
85d49873 2463 if (strncmp(line, "lxc.", 4))
d899f11b 2464 goto on_error;
2465
2466 ret = -1;
2467 dot = strchr(line, '=');
2468 if (!dot) {
2469 ERROR("Invalid configuration item: %s", line);
2470 goto on_error;
2471 }
2472
2473 *dot = '\0';
2474 value = dot + 1;
2475
2476 key = line;
2477 key[lxc_char_right_gc(key, strlen(key))] = '\0';
2478
2479 value += lxc_char_left_gc(value, strlen(value));
2480 value[lxc_char_right_gc(value, strlen(value))] = '\0';
2481
2482 if (*value == '\'' || *value == '\"') {
2483 size_t len;
2484
2485 len = strlen(value);
2486 if (len > 1 && value[len - 1] == *value) {
2487 value[len - 1] = '\0';
2488 value++;
2489 }
2490 }
2491
2492 ret = -1;
2493 new = malloc(sizeof(struct new_config_item));
2494 if (!new)
2495 goto on_error;
2496
2497 new->key = strdup(key);
2498 new->val = strdup(value);
2499 if (!new->val || !new->key)
2500 goto on_error;
2501
2502 ret = 0;
2503
2504on_error:
2505 free(linep);
2506
2507 if (ret < 0 && new) {
2508 free(new->key);
2509 free(new->val);
2510 free(new);
2511 new = NULL;
2512 }
2513
2514 return new;
2515}
2516
6b0d5538 2517int lxc_config_read(const char *file, struct lxc_conf *conf, bool from_include)
c2cc9f0a 2518{
6b0d5538
SH		 2519 struct parse_line_conf c;
2520
2521 c.conf = conf;
2522 c.from_include = from_include;
f979ac15 2523
25a908b8 2524 /* Catch only the top level config file name in the structure. */
504a2217 2525 if (!conf->rcfile)
76d0127f 2526 conf->rcfile = strdup(file);
f979ac15 2527
9994d140 2528 return lxc_file_for_each_line_mmap(file, parse_line, &c);
c2cc9f0a 2529}
62e46035 2530
504a2217 2531int lxc_config_define_add(struct lxc_list *defines, char *arg)
62e46035
CLG		 2532{
2533 struct lxc_list *dent;
2534
2535 dent = malloc(sizeof(struct lxc_list));
2536 if (!dent)
2537 return -1;
2538
d899f11b 2539 dent->elem = parse_new_conf_line(arg);
2540 if (!dent->elem) {
2541 free(dent);
2542 return -1;
2543 }
2544
62e46035 2545 lxc_list_add_tail(defines, dent);
47903908 2546
62e46035
CLG		 2547 return 0;
2548}
2549
eb0c9382 2550bool lxc_config_define_load(struct lxc_list *defines, struct lxc_container *c)
62e46035 2551{
eb0c9382 2552 struct lxc_list *it;
2553 bool bret = true;
62e46035
CLG		 2554
2555 lxc_list_for_each(it, defines) {
eb0c9382 2556 struct new_config_item *new_item = it->elem;
2557 bret = c->set_config_item(c, new_item->key, new_item->val);
2558 if (!bret)
62e46035
CLG		 2559 break;
2560 }
2561
eb0c9382 2562 lxc_config_define_free(defines);
47903908 2563
eb0c9382 2564 return bret;
2565}
2566
2567void lxc_config_define_free(struct lxc_list *defines)
2568{
2569 struct lxc_list *it, *next;
2570
9ebb03ad 2571 lxc_list_for_each_safe(it, defines, next) {
eb0c9382 2572 struct new_config_item *new_item = it->elem;
2573 free(new_item->key);
2574 free(new_item->val);
62e46035
CLG		 2575 lxc_list_del(it);
2576 free(it);
2577 }
62e46035 2578}
525f0002
CS		 2579
2580signed long lxc_config_parse_arch(const char *arch)
2581{
504a2217
CB		 2582#if HAVE_SYS_PERSONALITY_H
2583 size_t i;
525f0002
CS		 2584 struct per_name {
2585 char *name;
2586 unsigned long per;
bb8d8207 2587 } pername[] = {
8f3e3c13
CB		 2588 { "arm", PER_LINUX32 },
2589 { "armel", PER_LINUX32 },
2590 { "armhf", PER_LINUX32 },
2591 { "armv7l", PER_LINUX32 },
2592 { "athlon", PER_LINUX32 },
504a2217
CB		 2593 { "i386", PER_LINUX32 },
2594 { "i486", PER_LINUX32 },
2595 { "i586", PER_LINUX32 },
2596 { "i686", PER_LINUX32 },
8f3e3c13 2597 { "linux32", PER_LINUX32 },
504a2217
CB		 2598 { "mips", PER_LINUX32 },
2599 { "mipsel", PER_LINUX32 },
2600 { "ppc", PER_LINUX32 },
504a2217 2601 { "powerpc", PER_LINUX32 },
8f3e3c13 2602 { "x86", PER_LINUX32 },
504a2217 2603 { "amd64", PER_LINUX },
8f3e3c13
CB		 2604 { "arm64", PER_LINUX },
2605 { "linux64", PER_LINUX },
504a2217
CB		 2606 { "mips64", PER_LINUX },
2607 { "mips64el", PER_LINUX },
2608 { "ppc64", PER_LINUX },
504a2217 2609 { "ppc64el", PER_LINUX },
8f3e3c13 2610 { "ppc64le", PER_LINUX },
504a2217
CB		 2611 { "powerpc64", PER_LINUX },
2612 { "s390x", PER_LINUX },
8f3e3c13 2613 { "x86_64", PER_LINUX },
525f0002
CS		 2614 };
2615 size_t len = sizeof(pername) / sizeof(pername[0]);
2616
8f3e3c13 2617 for (i = 0; i < len; i++)
525f0002 2618 if (!strcmp(pername[i].name, arch))
504a2217 2619 return pername[i].per;
504a2217 2620#endif
525f0002
CS		 2621
2622 return -1;
2623}
72d0e1cb 2624
eb0c9382 2625int lxc_fill_elevated_privileges(char *flaglist, int *flags)
2626{
62dd965e 2627 char *token;
eb0c9382 2628 int i, aflag;
2629 struct {
2630 const char *token;
2631 int flag;
2632 } all_privs[] = {
2633 { "CGROUP", LXC_ATTACH_MOVE_TO_CGROUP },
2634 { "CAP", LXC_ATTACH_DROP_CAPABILITIES },
2635 { "LSM", LXC_ATTACH_LSM_EXEC },
2636 { NULL, 0 }
2637 };
2638
2639 if (!flaglist) {
2640 /* For the sake of backward compatibility, drop all privileges
2641 * if none is specified.
2642 */
2643 for (i = 0; all_privs[i].token; i++)
2644 *flags |= all_privs[i].flag;
2645
2646 return 0;
2647 }
2648
62dd965e 2649 lxc_iterate_parts(token, flaglist, "|") {
eb0c9382 2650 aflag = -1;
2651
2652 for (i = 0; all_privs[i].token; i++)
2653 if (!strcmp(all_privs[i].token, token))
2654 aflag = all_privs[i].flag;
2655
2656 if (aflag < 0)
2657 return -1;
2658
2659 *flags |= aflag;
eb0c9382 2660 }
2661
2662 return 0;
2663}
2664
504a2217 2665/* Write out a configuration file. */
0e1a60b0 2666int write_config(int fd, const struct lxc_conf *conf)
72d0e1cb 2667{
6b0d5538 2668 int ret;
0e1a60b0 2669 size_t len = conf->unexpanded_len;
72d0e1cb 2670
0e1a60b0
CB		 2671 if (len == 0)
2672 return 0;
504a2217 2673
0e1a60b0
CB		 2674 ret = lxc_write_nointr(fd, conf->unexpanded_config, len);
2675 if (ret < 0) {
25a908b8 2676 SYSERROR("Failed to write configuration file");
0e1a60b0
CB		 2677 return -1;
2678 }
2679
2680 return 0;
6b0d5538 2681}
f979ac15 2682
504a2217
CB		 2683bool do_append_unexp_config_line(struct lxc_conf *conf, const char *key,
2684 const char *v)
6b0d5538
SH		 2685{
2686 int ret;
151d2da2
CB		 2687 size_t len;
2688 char *tmp;
4184c3e1 2689
151d2da2
CB		 2690 len = strlen(key) + strlen(v) + 4;
2691 tmp = alloca(len);
2692
663e9916 2693 if (lxc_config_value_empty(v))
151d2da2
CB		 2694 ret = snprintf(tmp, len, "%s =", key);
2695 else
2696 ret = snprintf(tmp, len, "%s = %s", key, v);
6b0d5538
SH		 2697 if (ret < 0 || ret >= len)
2698 return false;
2699
2700 /* Save the line verbatim into unexpanded_conf */
2701 if (append_unexp_config_line(tmp, conf))
2702 return false;
2703
2704 return true;
2705}
2706
504a2217
CB		 2707void clear_unexp_config_line(struct lxc_conf *conf, const char *key,
2708 bool rm_subkeys)
6b0d5538 2709{
504a2217
CB		 2710 char *lend;
2711 char *lstart = conf->unexpanded_config;
6b0d5538
SH		 2712
2713 if (!conf->unexpanded_config)
2714 return;
504a2217 2715
6b0d5538
SH		 2716 while (*lstart) {
2717 lend = strchr(lstart, '\n');
2718 char v;
47903908 2719
6b0d5538
SH		 2720 if (!lend)
2721 lend = lstart + strlen(lstart);
2722 else
2723 lend++;
47903908 2724
6b0d5538
SH		 2725 if (strncmp(lstart, key, strlen(key)) != 0) {
2726 lstart = lend;
2727 continue;
5f62730e 2728 }
47903908 2729
6b0d5538
SH		 2730 if (!rm_subkeys) {
2731 v = lstart[strlen(key)];
2732 if (!isspace(v) && v != '=') {
2733 lstart = lend;
2734 continue;
2735 }
5f62730e 2736 }
47903908 2737
6b0d5538 2738 conf->unexpanded_len -= (lend - lstart);
47903908 2739
6b0d5538
SH		 2740 if (*lend == '\0') {
2741 *lstart = '\0';
2742 return;
fd986e08 2743 }
47903908 2744
504a2217 2745 memmove(lstart, lend, strlen(lend) + 1);
fd986e08 2746 }
6b0d5538
SH		 2747}
2748
329b3625
CB		 2749bool clone_update_unexp_ovl_paths(struct lxc_conf *conf, const char *oldpath,
2750 const char *newpath, const char *oldname,
2751 const char *newname, const char *ovldir)
2752{
329b3625 2753 int ret;
504a2217
CB		 2754 char *lend, *newdir, *olddir, *p, *q;
2755 size_t newdirlen, olddirlen;
329b3625 2756 char *lstart = conf->unexpanded_config;
504a2217 2757 const char *key = "lxc.mount.entry";
329b3625 2758
504a2217
CB		 2759 olddirlen = strlen(ovldir) + strlen(oldpath) + strlen(oldname) + 2;
2760 olddir = alloca(olddirlen + 1);
2761 ret = snprintf(olddir, olddirlen + 1, "%s=%s/%s", ovldir, oldpath,
2762 oldname);
25a908b8 2763 if (ret < 0 || ret >= olddirlen + 1)
329b3625 2764 return false;
504a2217
CB		 2765
2766 newdirlen = strlen(ovldir) + strlen(newpath) + strlen(newname) + 2;
2767 newdir = alloca(newdirlen + 1);
2768 ret = snprintf(newdir, newdirlen + 1, "%s=%s/%s", ovldir, newpath,
2769 newname);
25a908b8 2770 if (ret < 0 || ret >= newdirlen + 1)
329b3625 2771 return false;
504a2217 2772
329b3625
CB		 2773 if (!conf->unexpanded_config)
2774 return true;
504a2217 2775
329b3625
CB		 2776 while (*lstart) {
2777 lend = strchr(lstart, '\n');
2778 if (!lend)
2779 lend = lstart + strlen(lstart);
2780 else
2781 lend++;
504a2217 2782
329b3625 2783 if (strncmp(lstart, key, strlen(key)) != 0)
504a2217
CB		 2784 goto next;
2785
329b3625
CB		 2786 p = strchr(lstart + strlen(key), '=');
2787 if (!p)
504a2217 2788 goto next;
329b3625 2789 p++;
504a2217 2790
329b3625
CB		 2791 while (isblank(*p))
2792 p++;
504a2217 2793
329b3625 2794 if (p >= lend)
504a2217
CB		 2795 goto next;
2796
12e6ab5d
CB		 2797 /* Whenever a lxc.mount.entry entry is found in a line we check
2798 * if the substring "overlay" is present before doing any
2799 * further work. We check for "overlay" because substrings need
2800 * to have at least one space before them in a valid overlay
504a2217
CB		 2801 * lxc.mount.entry (/A B overlay). When the space before is
2802 * missing it is very likely that these substrings are part of a
2803 * path or something else. (Checking q >= lend ensures that we
2804 * only count matches in the current line.) */
12e6ab5d
CB		 2805 q = strstr(p, " overlay");
2806 if (!q || q >= lend)
504a2217
CB		 2807 goto next;
2808
329b3625 2809 if (!(q = strstr(p, olddir)) || (q >= lend))
504a2217 2810 goto next;
329b3625
CB		 2811
2812 /* replace the olddir with newdir */
2813 if (olddirlen >= newdirlen) {
2814 size_t diff = olddirlen - newdirlen;
2815 memcpy(q, newdir, newdirlen);
47903908 2816
329b3625
CB		 2817 if (olddirlen != newdirlen) {
2818 memmove(q + newdirlen, q + newdirlen + diff,
47903908 2819 strlen(q) - newdirlen - diff + 1);
329b3625
CB		 2820 lend -= diff;
2821 conf->unexpanded_len -= diff;
2822 }
2823 } else {
2824 char *new;
2825 size_t diff = newdirlen - olddirlen;
2826 size_t oldlen = conf->unexpanded_len;
2827 size_t newlen = oldlen + diff;
2828 size_t poffset = q - conf->unexpanded_config;
504a2217 2829
329b3625 2830 new = realloc(conf->unexpanded_config, newlen + 1);
25a908b8 2831 if (!new)
329b3625 2832 return false;
25a908b8 2833
329b3625
CB		 2834 conf->unexpanded_len = newlen;
2835 conf->unexpanded_alloced = newlen + 1;
2836 new[newlen - 1] = '\0';
2837 lend = new + (lend - conf->unexpanded_config);
47903908 2838
25a908b8 2839 /* Move over the remainder to make room for the newdir.
504a2217 2840 */
329b3625 2841 memmove(new + poffset + newdirlen,
47903908 2842 new + poffset + olddirlen,
2843 oldlen - poffset - olddirlen + 1);
329b3625 2844 conf->unexpanded_config = new;
47903908 2845
329b3625
CB		 2846 memcpy(new + poffset, newdir, newdirlen);
2847 lend += diff;
2848 }
47903908 2849
504a2217
CB		 2850 next:
2851 lstart = lend;
329b3625 2852 }
504a2217 2853
329b3625
CB		 2854 return true;
2855}
2856
67702c21 2857bool clone_update_unexp_hooks(struct lxc_conf *conf, const char *oldpath,
d546aa0e
CB		 2858 const char *newpath, const char *oldname,
2859 const char *newname)
6b0d5538 2860{
67702c21 2861 int ret;
504a2217
CB		 2862 char *lend, *newdir, *olddir, *p;
2863 char *lstart = conf->unexpanded_config;
2864 size_t newdirlen, olddirlen;
2865 const char *key = "lxc.hook";
67702c21 2866
504a2217
CB		 2867 olddirlen = strlen(oldpath) + strlen(oldname) + 1;
2868 olddir = alloca(olddirlen + 1);
d546aa0e 2869 ret = snprintf(olddir, olddirlen + 1, "%s/%s", oldpath, oldname);
25a908b8 2870 if (ret < 0 || ret >= olddirlen + 1)
67702c21 2871 return false;
504a2217
CB		 2872
2873 newdirlen = strlen(newpath) + strlen(newname) + 1;
2874 newdir = alloca(newdirlen + 1);
d546aa0e 2875 ret = snprintf(newdir, newdirlen + 1, "%s/%s", newpath, newname);
25a908b8 2876 if (ret < 0 || ret >= newdirlen + 1)
67702c21 2877 return false;
25a908b8 2878
67702c21
SH		 2879 if (!conf->unexpanded_config)
2880 return true;
25a908b8 2881
67702c21
SH		 2882 while (*lstart) {
2883 lend = strchr(lstart, '\n');
2884 if (!lend)
2885 lend = lstart + strlen(lstart);
2886 else
2887 lend++;
504a2217 2888
d546aa0e 2889 if (strncmp(lstart, key, strlen(key)) != 0)
504a2217
CB		 2890 goto next;
2891
d546aa0e
CB		 2892 p = strchr(lstart + strlen(key), '=');
2893 if (!p)
504a2217 2894 goto next;
67702c21 2895 p++;
504a2217 2896
67702c21
SH		 2897 while (isblank(*p))
2898 p++;
504a2217
CB		 2899
2900 if (p >= lend)
2901 goto next;
2902
d546aa0e 2903 if (strncmp(p, olddir, strlen(olddir)) != 0)
504a2217
CB		 2904 goto next;
2905
67702c21
SH		 2906 /* replace the olddir with newdir */
2907 if (olddirlen >= newdirlen) {
2908 size_t diff = olddirlen - newdirlen;
2909 memcpy(p, newdir, newdirlen);
47903908 2910
67702c21 2911 if (olddirlen != newdirlen) {
d546aa0e 2912 memmove(p + newdirlen, p + newdirlen + diff,
47903908 2913 strlen(p) - newdirlen - diff + 1);
67702c21
SH		 2914 lend -= diff;
2915 conf->unexpanded_len -= diff;
2916 }
67702c21
SH		 2917 } else {
2918 char *new;
2919 size_t diff = newdirlen - olddirlen;
2920 size_t oldlen = conf->unexpanded_len;
2921 size_t newlen = oldlen + diff;
2922 size_t poffset = p - conf->unexpanded_config;
504a2217 2923
d546aa0e 2924 new = realloc(conf->unexpanded_config, newlen + 1);
25a908b8 2925 if (!new)
6b0d5538 2926 return false;
25a908b8 2927
67702c21 2928 conf->unexpanded_len = newlen;
d546aa0e
CB		 2929 conf->unexpanded_alloced = newlen + 1;
2930 new[newlen - 1] = '\0';
67702c21 2931 lend = new + (lend - conf->unexpanded_config);
47903908 2932
25a908b8 2933 /* Move over the remainder to make room for the newdir.
504a2217 2934 */
d546aa0e 2935 memmove(new + poffset + newdirlen,
47903908 2936 new + poffset + olddirlen,
2937 oldlen - poffset - olddirlen + 1);
67702c21 2938 conf->unexpanded_config = new;
47903908 2939
d546aa0e
CB		 2940 memcpy(new + poffset, newdir, newdirlen);
2941 lend += diff;
fd986e08 2942 }
47903908 2943
504a2217
CB		 2944 next:
2945 lstart = lend;
fd986e08 2946 }
504a2217 2947
6b0d5538
SH		 2948 return true;
2949}
2950
504a2217
CB		 2951#define DO(cmd) \
2952 { \
2953 if (!(cmd)) { \
2954 ERROR("Error writing to new config"); \
2955 return false; \
2956 } \
2957 }
6b0d5538 2958
25a908b8
CB		 2959/* This is called only from clone. We wish to update all hwaddrs in the
2960 * unexpanded config file. We can't/don't want to update any which come from
504a2217
CB		 2961 * lxc.includes (there shouldn't be any).
2962 * We can't just walk the c->lxc-conf->network list because that includes netifs
2963 * from the include files. So we update the ones which we find in the unexp
2964 * config file, then find the original macaddr in the conf->network, and update
2965 * that to the same value.
67702c21
SH		 2966 */
2967bool network_new_hwaddrs(struct lxc_conf *conf)
6b0d5538 2968{
504a2217 2969 char *lend, *p, *p2;
6b0d5538 2970 struct lxc_list *it;
504a2217 2971 char *lstart = conf->unexpanded_config;
6b0d5538 2972
67702c21
SH		 2973 if (!conf->unexpanded_config)
2974 return true;
091045f8 2975
67702c21
SH		 2976 while (*lstart) {
2977 char newhwaddr[18], oldhwaddr[17];
091045f8 2978
67702c21
SH		 2979 lend = strchr(lstart, '\n');
2980 if (!lend)
2981 lend = lstart + strlen(lstart);
2982 else
2983 lend++;
091045f8 2984
4a787c27 2985 if (!lxc_config_net_hwaddr(lstart)) {
67702c21
SH		 2986 lstart = lend;
2987 continue;
72d0e1cb 2988 }
091045f8 2989
4a787c27 2990 p = strchr(lstart, '=');
67702c21
SH		 2991 if (!p) {
2992 lstart = lend;
2993 continue;
72d0e1cb 2994 }
091045f8 2995
67702c21
SH		 2996 p++;
2997 while (isblank(*p))
2998 p++;
2999 if (!*p)
3000 return true;
091045f8 3001
67702c21
SH		 3002 p2 = p;
3003 while (*p2 && !isblank(*p2) && *p2 != '\n')
3004 p2++;
504a2217
CB		 3005
3006 if ((p2 - p) != 17) {
67702c21
SH		 3007 WARN("Bad hwaddr entry");
3008 lstart = lend;
3009 continue;
72d0e1cb 3010 }
091045f8 3011
67702c21 3012 memcpy(oldhwaddr, p, 17);
091045f8
CB		 3013
3014 if (!new_hwaddr(newhwaddr))
3015 return false;
3016
67702c21 3017 memcpy(p, newhwaddr, 17);
25a908b8 3018 lxc_list_for_each(it, &conf->network) {
67702c21 3019 struct lxc_netdev *n = it->elem;
25a908b8 3020
67702c21
SH		 3021 if (n->hwaddr && memcmp(oldhwaddr, n->hwaddr, 17) == 0)
3022 memcpy(n->hwaddr, newhwaddr, 17);
72d0e1cb 3023 }
67702c21
SH		 3024
3025 lstart = lend;
72d0e1cb 3026 }
091045f8 3027
6b0d5538 3028 return true;
72d0e1cb 3029}
8796becf 3030
713046e3 3031static int set_config_ephemeral(const char *key, const char *value,
c7e27aaf 3032 struct lxc_conf *lxc_conf, void *data)
8796becf 3033{
663e9916 3034 if (lxc_config_value_empty(value)) {
3c6cf53a 3035 lxc_conf->ephemeral = 0;
78304622 3036 return 0;
3c6cf53a 3037 }
78304622 3038
66ffdb1a
CB		 3039 if (lxc_safe_uint(value, &lxc_conf->ephemeral) < 0)
3040 return -1;
8796becf 3041
25a908b8 3042 if (lxc_conf->ephemeral > 1)
8796becf 3043 return -1;
8796becf
CB		 3044
3045 return 0;
3046}
3047
46cc906d 3048static int set_config_log_syslog(const char *key, const char *value,
c7e27aaf 3049 struct lxc_conf *lxc_conf, void *data)
64c57ea1 3050{
76d0127f 3051 int facility;
7ca56b84 3052
ee10a69c
CB		 3053 if (lxc_conf->syslog) {
3054 free(lxc_conf->syslog);
3055 lxc_conf->syslog = NULL;
3056 }
3057
663e9916 3058 if (lxc_config_value_empty(value))
7ca56b84
CB		 3059 return 0;
3060
76d0127f 3061 facility = lxc_syslog_priority_to_int(value);
25a908b8 3062 if (facility == -EINVAL)
76d0127f 3063 return -1;
64c57ea1 3064
76d0127f 3065 lxc_log_syslog(facility);
47903908 3066
713046e3 3067 return set_config_string_item(&lxc_conf->syslog, value);
64c57ea1 3068}
5a46f283 3069
713046e3 3070static int set_config_no_new_privs(const char *key, const char *value,
c7e27aaf 3071 struct lxc_conf *lxc_conf, void *data)
5a46f283 3072{
e8ec7c9e 3073 unsigned int v;
5a46f283 3074
663e9916 3075 if (lxc_config_value_empty(value)) {
cf3f8bf6 3076 lxc_conf->no_new_privs = false;
80926845 3077 return 0;
cf3f8bf6 3078 }
80926845 3079
e8ec7c9e
CB		 3080 if (lxc_safe_uint(value, &v) < 0)
3081 return -1;
3082
25a908b8 3083 if (v > 1)
5a46f283 3084 return -1;
e8ec7c9e 3085
5a46f283
CB		 3086 lxc_conf->no_new_privs = v ? true : false;
3087
3088 return 0;
3089}
7b992a3e
CB		 3090
3091/* Callbacks to get configuration items. */
6bede808 3092static int get_config_personality(const char *key, char *retv, int inlen,
cccd2219 3093 struct lxc_conf *c, void *data)
7b992a3e
CB		 3094{
3095 int fulllen = 0;
3096
3097 if (!retv)
3098 inlen = 0;
3099 else
3100 memset(retv, 0, inlen);
3101
3102#if HAVE_SYS_PERSONALITY_H
3103 int len = 0;
3104
6bede808 3105 switch (c->personality) {
7b992a3e
CB		 3106 case PER_LINUX32:
3107 strprint(retv, inlen, "i686");
3108 break;
3109 case PER_LINUX:
3110 strprint(retv, inlen, "x86_64");
3111 break;
3112 default:
3113 break;
3114 }
3115#endif
3116
3117 return fulllen;
3118}
bdf91ab4 3119
232763d6
CB		 3120static int get_config_pty_max(const char *key, char *retv, int inlen,
3121 struct lxc_conf *c, void *data)
bdf91ab4 3122{
e528c735 3123 return lxc_get_conf_size_t(c, retv, inlen, c->pty_max);
bdf91ab4 3124}
5485782f 3125
fe1c5887
CB		 3126static int get_config_tty_max(const char *key, char *retv, int inlen,
3127 struct lxc_conf *c, void *data)
5485782f 3128{
885766f5 3129 return lxc_get_conf_size_t(c, retv, inlen, c->ttys.max);
5485782f 3130}
8015e018 3131
42e53c29 3132static int get_config_tty_dir(const char *key, char *retv, int inlen,
cccd2219 3133 struct lxc_conf *c, void *data)
8015e018 3134{
885766f5 3135 return lxc_get_conf_str(retv, inlen, c->ttys.dir);
8015e018 3136}
de1ede69 3137
953fe44f
CB		 3138static int get_config_apparmor_profile(const char *key, char *retv, int inlen,
3139 struct lxc_conf *c, void *data)
104c8e6c 3140{
6bede808 3141 return lxc_get_conf_str(retv, inlen, c->lsm_aa_profile);
104c8e6c 3142}
d60d18c6 3143
953fe44f
CB		 3144static int get_config_apparmor_allow_incomplete(const char *key, char *retv,
3145 int inlen, struct lxc_conf *c,
3146 void *data)
d60d18c6 3147{
6bede808
CB		 3148 return lxc_get_conf_int(c, retv, inlen,
3149 c->lsm_aa_allow_incomplete);
d60d18c6 3150}
4203a0b5 3151
1800f924
WB		 3152static int get_config_apparmor_allow_nesting(const char *key, char *retv,
3153 int inlen, struct lxc_conf *c,
3154 void *data)
3155{
3156 return lxc_get_conf_int(c, retv, inlen,
3157 c->lsm_aa_allow_nesting);
3158}
3159
3160static int get_config_apparmor_raw(const char *key, char *retv,
3161 int inlen, struct lxc_conf *c,
3162 void *data)
3163{
3164 int len;
3165 struct lxc_list *it;
3166 int fulllen = 0;
3167
3168 if (!retv)
3169 inlen = 0;
3170 else
3171 memset(retv, 0, inlen);
3172
3173 lxc_list_for_each(it, &c->lsm_aa_raw) {
3174 strprint(retv, inlen, "%s\n", (char *)it->elem);
3175 }
3176
3177 return fulllen;
3178}
3179
953fe44f
CB		 3180static int get_config_selinux_context(const char *key, char *retv, int inlen,
3181 struct lxc_conf *c, void *data)
4203a0b5 3182{
6bede808 3183 return lxc_get_conf_str(retv, inlen, c->lsm_se_context);
4203a0b5 3184}
b863bf92 3185
25a908b8
CB		 3186/* If you ask for a specific cgroup value, i.e. lxc.cgroup.devices.list, then
3187 * just the value(s) will be printed. Since there still could be more than one,
3188 * it is newline-separated.
8d47350b 3189 * (Maybe that's ambiguous, since some values, i.e. devices.list, will already
25a908b8
CB		 3190 * have newlines?)
3191 * If you ask for 'lxc.cgroup", then all cgroup entries will be printed, in
3192 * 'lxc.cgroup.subsystem.key = value' format.
b863bf92 3193 */
54860ed0
CB		 3194static int __get_config_cgroup_controller(const char *key, char *retv,
3195 int inlen, struct lxc_conf *c,
3196 int version)
b863bf92 3197{
b863bf92 3198 int len;
54860ed0
CB		 3199 size_t namespaced_token_len;
3200 char *global_token, *namespaced_token;
3201 struct lxc_list *it;
b863bf92
CB		 3202 int fulllen = 0;
3203 bool get_all = false;
3204
3205 if (!retv)
3206 inlen = 0;
3207 else
3208 memset(retv, 0, inlen);
3209
54860ed0
CB		 3210 if (version == CGROUP2_SUPER_MAGIC) {
3211 global_token = "lxc.cgroup2";
3212 namespaced_token = "lxc.cgroup2.";
6333c915 3213 namespaced_token_len = STRLITERALLEN("lxc.cgroup2.");
54860ed0
CB		 3214 } else if (version == CGROUP_SUPER_MAGIC) {
3215 global_token = "lxc.cgroup";
3216 namespaced_token = "lxc.cgroup.";
6333c915 3217 namespaced_token_len = STRLITERALLEN("lxc.cgroup.");
54860ed0
CB		 3218 } else {
3219 return -1;
3220 }
3221
3222 if (strcmp(key, global_token) == 0)
b863bf92 3223 get_all = true;
54860ed0
CB		 3224 else if (strncmp(key, namespaced_token, namespaced_token_len) == 0)
3225 key += namespaced_token_len;
b863bf92
CB		 3226 else
3227 return -1;
3228
6bede808 3229 lxc_list_for_each(it, &c->cgroup) {
b863bf92 3230 struct lxc_cgroup *cg = it->elem;
25a908b8 3231
b863bf92 3232 if (get_all) {
54860ed0
CB		 3233 if (version != cg->version)
3234 continue;
3235
47903908 3236 strprint(retv, inlen, "%s.%s = %s\n", global_token,
3237 cg->subsystem, cg->value);
3238 } else if (strcmp(cg->subsystem, key) == 0) {
b863bf92
CB		 3239 strprint(retv, inlen, "%s\n", cg->value);
3240 }
3241 }
3242
3243 return fulllen;
3244}
5014ff2e 3245
54860ed0
CB		 3246static int get_config_cgroup_controller(const char *key, char *retv, int inlen,
3247 struct lxc_conf *c, void *data)
3248{
3249 return __get_config_cgroup_controller(key, retv, inlen, c,
3250 CGROUP_SUPER_MAGIC);
3251}
3252
3253static int get_config_cgroup2_controller(const char *key, char *retv, int inlen,
3254 struct lxc_conf *c, void *data)
3255{
3256 return __get_config_cgroup_controller(key, retv, inlen, c,
3257 CGROUP2_SUPER_MAGIC);
3258}
3259
43654d34
CB		 3260static int get_config_cgroup_dir(const char *key, char *retv, int inlen,
3261 struct lxc_conf *lxc_conf, void *data)
3262{
3263 int len;
3264 int fulllen = 0;
3265
3266 if (!retv)
3267 inlen = 0;
3268 else
3269 memset(retv, 0, inlen);
3270
3271 strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.dir);
3272
3273 return fulllen;
3274}
3275
9caee129
CB		 3276static inline int get_config_cgroup_relative(const char *key, char *retv,
3277 int inlen, struct lxc_conf *lxc_conf,
3278 void *data)
76f0e2e7
CB		 3279{
3280 return lxc_get_conf_int(lxc_conf, retv, inlen,
9caee129 3281 lxc_conf->cgroup_meta.relative);
76f0e2e7
CB		 3282}
3283
6bede808 3284static int get_config_idmaps(const char *key, char *retv, int inlen,
cccd2219 3285 struct lxc_conf *c, void *data)
5014ff2e
CB		 3286{
3287 struct lxc_list *it;
3288 int len, listlen, ret;
3289 int fulllen = 0;
3290/* "u 1000 1000000 65536"
3291 *
3292 * let's render this as
3293 *
3294 * sizeof(char)
3295 * +
3296 * sizeof(" ")
3297 * +
c77aee64 3298 * sizeof(uint32_t)
5014ff2e
CB		 3299 * +
3300 * sizeof(" ")
3301 * +
c77aee64 3302 * sizeof(uint32_t)
5014ff2e
CB		 3303 * +
3304 * sizeof(" ")
3305 * +
c77aee64 3306 * sizeof(uint32_t)
5014ff2e
CB		 3307 * +
3308 * \0
3309 */
c77aee64 3310#define __LXC_IDMAP_STR_BUF (3 * INTTYPE_TO_STRLEN(uint32_t) + 3 + 1 + 1)
5014ff2e
CB		 3311 char buf[__LXC_IDMAP_STR_BUF];
3312
3313 if (!retv)
3314 inlen = 0;
3315 else
3316 memset(retv, 0, inlen);
3317
6bede808 3318 listlen = lxc_list_len(&c->id_map);
c77aee64 3319 lxc_list_for_each(it, &c->id_map) {
5014ff2e
CB		 3320 struct id_map *map = it->elem;
3321 ret = snprintf(buf, __LXC_IDMAP_STR_BUF, "%c %lu %lu %lu",
3322 (map->idtype == ID_TYPE_UID) ? 'u' : 'g',
3323 map->nsid, map->hostid, map->range);
3324 if (ret < 0 || ret >= __LXC_IDMAP_STR_BUF)
3325 return -1;
3326
3327 strprint(retv, inlen, "%s%s", buf, (listlen-- > 1) ? "\n" : "");
3328 }
47903908 3329
5014ff2e
CB		 3330 return fulllen;
3331}
b29b29be 3332
46cc906d 3333static int get_config_log_level(const char *key, char *retv, int inlen,
cccd2219 3334 struct lxc_conf *c, void *data)
b29b29be
CB		 3335{
3336 const char *v;
6bede808 3337 v = lxc_log_priority_to_string(c->loglevel);
b29b29be
CB		 3338 return lxc_get_conf_str(retv, inlen, v);
3339}
3d4630ab 3340
46cc906d 3341static int get_config_log_file(const char *key, char *retv, int inlen,
cccd2219 3342 struct lxc_conf *c, void *data)
3d4630ab 3343{
6bede808 3344 return lxc_get_conf_str(retv, inlen, c->logfile);
3d4630ab 3345}
0d601acb 3346
47148e96
CB		 3347static int get_config_mount_fstab(const char *key, char *retv, int inlen,
3348 struct lxc_conf *c, void *data)
0d601acb 3349{
6bede808 3350 return lxc_get_conf_str(retv, inlen, c->fstab);
0d601acb 3351}
43fbf8d9 3352
6bede808 3353static int get_config_mount_auto(const char *key, char *retv, int inlen,
cccd2219 3354 struct lxc_conf *c, void *data)
43fbf8d9
CB		 3355{
3356 int len, fulllen = 0;
3357 const char *sep = "";
3358
3359 if (!retv)
3360 inlen = 0;
3361 else
3362 memset(retv, 0, inlen);
3363
6bede808 3364 if (!(c->auto_mounts & LXC_AUTO_ALL_MASK))
43fbf8d9
CB		 3365 return 0;
3366
6bede808 3367 switch (c->auto_mounts & LXC_AUTO_PROC_MASK) {
43fbf8d9
CB		 3368 case LXC_AUTO_PROC_MIXED:
3369 strprint(retv, inlen, "%sproc:mixed", sep);
3370 sep = " ";
3371 break;
3372 case LXC_AUTO_PROC_RW:
3373 strprint(retv, inlen, "%sproc:rw", sep);
3374 sep = " ";
3375 break;
3376 default:
3377 break;
3378 }
3379
6bede808 3380 switch (c->auto_mounts & LXC_AUTO_SYS_MASK) {
43fbf8d9
CB		 3381 case LXC_AUTO_SYS_RO:
3382 strprint(retv, inlen, "%ssys:ro", sep);
3383 sep = " ";
3384 break;
3385 case LXC_AUTO_SYS_RW:
3386 strprint(retv, inlen, "%ssys:rw", sep);
3387 sep = " ";
3388 break;
3389 case LXC_AUTO_SYS_MIXED:
3390 strprint(retv, inlen, "%ssys:mixed", sep);
3391 sep = " ";
3392 break;
3393 default:
3394 break;
3395 }
3396
6bede808 3397 switch (c->auto_mounts & LXC_AUTO_CGROUP_MASK) {
43fbf8d9
CB		 3398 case LXC_AUTO_CGROUP_NOSPEC:
3399 strprint(retv, inlen, "%scgroup", sep);
43fbf8d9
CB		 3400 break;
3401 case LXC_AUTO_CGROUP_MIXED:
3402 strprint(retv, inlen, "%scgroup:mixed", sep);
43fbf8d9
CB		 3403 break;
3404 case LXC_AUTO_CGROUP_RO:
3405 strprint(retv, inlen, "%scgroup:ro", sep);
43fbf8d9
CB		 3406 break;
3407 case LXC_AUTO_CGROUP_RW:
3408 strprint(retv, inlen, "%scgroup:rw", sep);
43fbf8d9
CB		 3409 break;
3410 case LXC_AUTO_CGROUP_FULL_NOSPEC:
3411 strprint(retv, inlen, "%scgroup-full", sep);
43fbf8d9
CB		 3412 break;
3413 case LXC_AUTO_CGROUP_FULL_MIXED:
3414 strprint(retv, inlen, "%scgroup-full:mixed", sep);
43fbf8d9
CB		 3415 break;
3416 case LXC_AUTO_CGROUP_FULL_RO:
3417 strprint(retv, inlen, "%scgroup-full:ro", sep);
43fbf8d9
CB		 3418 break;
3419 case LXC_AUTO_CGROUP_FULL_RW:
3420 strprint(retv, inlen, "%scgroup-full:rw", sep);
43fbf8d9
CB		 3421 break;
3422 default:
3423 break;
3424 }
3425
3426 return fulllen;
3427}
cc921848 3428
6bede808 3429static int get_config_mount(const char *key, char *retv, int inlen,
cccd2219 3430 struct lxc_conf *c, void *data)
cc921848
CB		 3431{
3432 int len, fulllen = 0;
3433 struct lxc_list *it;
3434
3435 if (!retv)
3436 inlen = 0;
3437 else
3438 memset(retv, 0, inlen);
3439
25a908b8 3440 lxc_list_for_each(it, &c->mount_list) {
cc921848
CB		 3441 strprint(retv, inlen, "%s\n", (char *)it->elem);
3442 }
3443
3444 return fulllen;
3445}
819114b6 3446
7a96a068
CB		 3447static int get_config_rootfs_path(const char *key, char *retv, int inlen,
3448 struct lxc_conf *c, void *data)
819114b6 3449{
6bede808 3450 return lxc_get_conf_str(retv, inlen, c->rootfs.path);
819114b6 3451}
3af60359 3452
6e54330c
CB		 3453static int get_config_rootfs_managed(const char *key, char *retv, int inlen,
3454 struct lxc_conf *c, void *data)
3455{
3456 return lxc_get_conf_bool(c, retv, inlen, c->rootfs.managed);
3457}
3458
6bede808 3459static int get_config_rootfs_mount(const char *key, char *retv, int inlen,
cccd2219 3460 struct lxc_conf *c, void *data)
3af60359 3461{
6bede808 3462 return lxc_get_conf_str(retv, inlen, c->rootfs.mount);
3af60359 3463}
0e9db631 3464
6bede808 3465static int get_config_rootfs_options(const char *key, char *retv, int inlen,
cccd2219 3466 struct lxc_conf *c, void *data)
0e9db631 3467{
6bede808 3468 return lxc_get_conf_str(retv, inlen, c->rootfs.options);
0e9db631 3469}
8f183f38 3470
b67771bc 3471static int get_config_uts_name(const char *key, char *retv, int inlen,
cccd2219 3472 struct lxc_conf *c, void *data)
e274f8b0
CB		 3473{
3474 return lxc_get_conf_str(
3475 retv, inlen,
6bede808 3476 c->utsname ? c->utsname->nodename : NULL);
e274f8b0 3477}
466c2e93 3478
6bede808 3479static int get_config_hooks(const char *key, char *retv, int inlen,
cccd2219 3480 struct lxc_conf *c, void *data)
466c2e93
CB		 3481{
3482 char *subkey;
3483 int len, fulllen = 0, found = -1;
3484 struct lxc_list *it;
3485 int i;
3486
466c2e93 3487 subkey = strchr(key, '.');
466c2e93
CB		 3488 if (!subkey)
3489 return -1;
47903908 3490
3491 subkey = strchr(subkey + 1, '.');
637d38f2
CB		 3492 if (!subkey)
3493 return -1;
466c2e93 3494 subkey++;
637d38f2 3495 if (*subkey == '\0')
466c2e93 3496 return -1;
47903908 3497
466c2e93
CB		 3498 for (i = 0; i < NUM_LXC_HOOKS; i++) {
3499 if (strcmp(lxchook_names[i], subkey) == 0) {
3500 found = i;
3501 break;
3502 }
3503 }
47903908 3504
466c2e93
CB		 3505 if (found == -1)
3506 return -1;
3507
3508 if (!retv)
3509 inlen = 0;
3510 else
3511 memset(retv, 0, inlen);
3512
6bede808 3513 lxc_list_for_each(it, &c->hooks[found]) {
466c2e93
CB		 3514 strprint(retv, inlen, "%s\n", (char *)it->elem);
3515 }
47903908 3516
466c2e93
CB		 3517 return fulllen;
3518}
d2ceff53 3519
44ae0fb6
CB		 3520static int get_config_hooks_version(const char *key, char *retv, int inlen,
3521 struct lxc_conf *c, void *data)
3522{
3523 return lxc_get_conf_int(c, retv, inlen, c->hooks_version);
3524}
3525
f9373e40
CB		 3526static int get_config_net(const char *key, char *retv, int inlen,
3527 struct lxc_conf *c, void *data)
d2ceff53
CB		 3528{
3529 int len, fulllen = 0;
3530 struct lxc_list *it;
3531
3532 if (!retv)
3533 inlen = 0;
3534 else
3535 memset(retv, 0, inlen);
3536
6bede808 3537 lxc_list_for_each(it, &c->network) {
d2ceff53
CB		 3538 struct lxc_netdev *n = it->elem;
3539 const char *t = lxc_net_type_to_str(n->type);
3540 strprint(retv, inlen, "%s\n", t ? t : "(invalid)");
3541 }
3542
3543 return fulllen;
3544}
bdccff60 3545
6bede808 3546static int get_config_cap_drop(const char *key, char *retv, int inlen,
cccd2219 3547 struct lxc_conf *c, void *data)
1c96d6d8
CB		 3548{
3549 int len, fulllen = 0;
3550 struct lxc_list *it;
3551
3552 if (!retv)
3553 inlen = 0;
3554 else
3555 memset(retv, 0, inlen);
3556
6bede808 3557 lxc_list_for_each(it, &c->caps) {
b80927f2
CB		 3558 strprint(retv, inlen, "%s\n", (char *)it->elem);
3559 }
25a908b8 3560
b80927f2
CB		 3561 return fulllen;
3562}
3563
6bede808 3564static int get_config_cap_keep(const char *key, char *retv, int inlen,
cccd2219 3565 struct lxc_conf *c, void *data)
b80927f2
CB		 3566{
3567 int len, fulllen = 0;
3568 struct lxc_list *it;
3569
3570 if (!retv)
3571 inlen = 0;
3572 else
3573 memset(retv, 0, inlen);
3574
6bede808 3575 lxc_list_for_each(it, &c->keepcaps) {
1c96d6d8
CB		 3576 strprint(retv, inlen, "%s\n", (char *)it->elem);
3577 }
25a908b8 3578
1c96d6d8
CB		 3579 return fulllen;
3580}
0692663a 3581
3aed4934
CB		 3582static int get_config_console_path(const char *key, char *retv, int inlen,
3583 struct lxc_conf *c, void *data)
0692663a 3584{
6bede808 3585 return lxc_get_conf_str(retv, inlen, c->console.path);
0692663a 3586}
794d1c06 3587
6bede808 3588static int get_config_console_logfile(const char *key, char *retv, int inlen,
cccd2219 3589 struct lxc_conf *c, void *data)
794d1c06 3590{
6bede808 3591 return lxc_get_conf_str(retv, inlen, c->console.log_path);
794d1c06 3592}
75f55b1f 3593
d91adfa6
CB		 3594static int get_config_console_rotate(const char *key, char *retv, int inlen,
3595 struct lxc_conf *c, void *data)
3596{
3597 return lxc_get_conf_int(c, retv, inlen, c->console.log_rotate);
3598}
3599
3600
28f3b1cd
CB		 3601static int get_config_console_buffer_size(const char *key, char *retv,
3602 int inlen, struct lxc_conf *c,
3603 void *data)
a04220de 3604{
dcea90a0 3605 return lxc_get_conf_uint64(c, retv, inlen, c->console.buffer_size);
a04220de
CB		 3606}
3607
861813e5
CB		 3608static int get_config_console_size(const char *key, char *retv, int inlen,
3609 struct lxc_conf *c, void *data)
3610{
3611 return lxc_get_conf_uint64(c, retv, inlen, c->console.log_size);
3612}
3613
3614
0b427da0
CB		 3615static int get_config_seccomp_profile(const char *key, char *retv, int inlen,
3616 struct lxc_conf *c, void *data)
75f55b1f 3617{
6bede808 3618 return lxc_get_conf_str(retv, inlen, c->seccomp);
75f55b1f 3619}
97f6dad0 3620
6bede808 3621static int get_config_autodev(const char *key, char *retv, int inlen,
cccd2219 3622 struct lxc_conf *c, void *data)
97f6dad0 3623{
6bede808 3624 return lxc_get_conf_int(c, retv, inlen, c->autodev);
97f6dad0 3625}
afee4324 3626
55c84efc 3627static int get_config_signal_halt(const char *key, char *retv, int inlen,
25a908b8 3628 struct lxc_conf *c, void *data)
afee4324 3629{
6bede808 3630 return lxc_get_conf_int(c, retv, inlen, c->haltsignal);
afee4324 3631}
3aa8f359 3632
55c84efc 3633static int get_config_signal_reboot(const char *key, char *retv, int inlen,
25a908b8 3634 struct lxc_conf *c, void *data)
3aa8f359 3635{
6bede808 3636 return lxc_get_conf_int(c, retv, inlen, c->rebootsignal);
3aa8f359 3637}
2e16269f 3638
55c84efc 3639static int get_config_signal_stop(const char *key, char *retv, int inlen,
25a908b8 3640 struct lxc_conf *c, void *data)
2e16269f 3641{
6bede808 3642 return lxc_get_conf_int(c, retv, inlen, c->stopsignal);
2e16269f 3643}
54345299 3644
6bede808 3645static int get_config_start(const char *key, char *retv, int inlen,
cccd2219 3646 struct lxc_conf *c, void *data)
54345299 3647{
c6182222 3648 if (strcmp(key + 10, "auto") == 0)
6bede808 3649 return lxc_get_conf_int(c, retv, inlen, c->start_auto);
c6182222 3650 else if (strcmp(key + 10, "delay") == 0)
6bede808 3651 return lxc_get_conf_int(c, retv, inlen, c->start_delay);
c6182222 3652 else if (strcmp(key + 10, "order") == 0)
6bede808 3653 return lxc_get_conf_int(c, retv, inlen, c->start_order);
54345299
CB		 3654
3655 return -1;
3656}
de9df15e 3657
46cc906d 3658static int get_config_log_syslog(const char *key, char *retv, int inlen,
25a908b8 3659 struct lxc_conf *c, void *data)
de9df15e 3660{
6bede808 3661 return lxc_get_conf_str(retv, inlen, c->syslog);
de9df15e 3662}
ac0f949c 3663
6bede808 3664static int get_config_monitor(const char *key, char *retv, int inlen,
cccd2219 3665 struct lxc_conf *c, void *data)
ac0f949c 3666{
6bede808 3667 return lxc_get_conf_int(c, retv, inlen, c->monitor_unshare);
ac0f949c 3668}
90ec7b6e 3669
258f8051
CB		 3670static int get_config_monitor_signal_pdeath(const char *key, char *retv,
3671 int inlen, struct lxc_conf *c,
3672 void *data)
3673{
3674 return lxc_get_conf_int(c, retv, inlen, c->monitor_signal_pdeath);
3675}
3676
6bede808 3677static int get_config_group(const char *key, char *retv, int inlen,
cccd2219 3678 struct lxc_conf *c, void *data)
90ec7b6e
CB		 3679{
3680 int len, fulllen = 0;
3681 struct lxc_list *it;
3682
3683 if (!retv)
3684 inlen = 0;
3685 else
3686 memset(retv, 0, inlen);
3687
6bede808 3688 lxc_list_for_each(it, &c->groups) {
90ec7b6e
CB		 3689 strprint(retv, inlen, "%s\n", (char *)it->elem);
3690 }
25a908b8 3691
90ec7b6e
CB		 3692 return fulllen;
3693}
aa0db7d3 3694
6bede808 3695static int get_config_environment(const char *key, char *retv, int inlen,
cccd2219 3696 struct lxc_conf *c, void *data)
aa0db7d3
CB		 3697{
3698 int len, fulllen = 0;
3699 struct lxc_list *it;
3700
3701 if (!retv)
3702 inlen = 0;
3703 else
3704 memset(retv, 0, inlen);
3705
6bede808 3706 lxc_list_for_each(it, &c->environment) {
aa0db7d3
CB		 3707 strprint(retv, inlen, "%s\n", (char *)it->elem);
3708 }
25a908b8 3709
aa0db7d3
CB		 3710 return fulllen;
3711}
96dfcb7d 3712
5cda27c1
SH		 3713static int get_config_execute_cmd(const char *key, char *retv, int inlen,
3714 struct lxc_conf *c, void *data)
3715{
3716 return lxc_get_conf_str(retv, inlen, c->execute_cmd);
3717}
3718
6bede808 3719static int get_config_init_cmd(const char *key, char *retv, int inlen,
cccd2219 3720 struct lxc_conf *c, void *data)
96dfcb7d 3721{
6bede808 3722 return lxc_get_conf_str(retv, inlen, c->init_cmd);
96dfcb7d 3723}
1398e9b1 3724
3c491553
L		 3725static int get_config_init_cwd(const char *key, char *retv, int inlen,
3726 struct lxc_conf *c, void *data)
3727{
3728 return lxc_get_conf_str(retv, inlen, c->init_cwd);
3729}
3730
6bede808 3731static int get_config_init_uid(const char *key, char *retv, int inlen,
cccd2219 3732 struct lxc_conf *c, void *data)
1398e9b1 3733{
6bede808 3734 return lxc_get_conf_int(c, retv, inlen, c->init_uid);
1398e9b1 3735}
dfeb7e42 3736
6bede808 3737static int get_config_init_gid(const char *key, char *retv, int inlen,
cccd2219 3738 struct lxc_conf *c, void *data)
dfeb7e42 3739{
6bede808 3740 return lxc_get_conf_int(c, retv, inlen, c->init_gid);
dfeb7e42 3741}
62048afe 3742
6bede808 3743static int get_config_ephemeral(const char *key, char *retv, int inlen,
cccd2219 3744 struct lxc_conf *c, void *data)
62048afe 3745{
6bede808 3746 return lxc_get_conf_int(c, retv, inlen, c->ephemeral);
62048afe 3747}
b09521ac 3748
6bede808 3749static int get_config_no_new_privs(const char *key, char *retv, int inlen,
cccd2219 3750 struct lxc_conf *c, void *data)
b09521ac 3751{
6bede808 3752 return lxc_get_conf_int(c, retv, inlen, c->no_new_privs);
b09521ac 3753}
389f6466 3754
25a908b8 3755/* If you ask for a specific value, i.e. lxc.prlimit.nofile, then just the value
240d4b74 3756 * will be printed. If you ask for 'lxc.prlimit', then all limit entries will be
3757 * printed, in 'lxc.prlimit.resource = value' format.
389f6466 3758 */
240d4b74 3759static int get_config_prlimit(const char *key, char *retv, int inlen,
47903908 3760 struct lxc_conf *c, void *data)
389f6466
CB		 3761{
3762 int fulllen = 0, len;
3763 bool get_all = false;
3764 struct lxc_list *it;
3765
3766 if (!retv)
3767 inlen = 0;
3768 else
3769 memset(retv, 0, inlen);
3770
240d4b74 3771 if (!strcmp(key, "lxc.prlimit"))
389f6466 3772 get_all = true;
240d4b74 3773 else if (strncmp(key, "lxc.prlimit.", 12) == 0)
3774 key += 12;
389f6466
CB		 3775 else
3776 return -1;
3777
6bede808 3778 lxc_list_for_each(it, &c->limits) {
c77aee64
CB		 3779 /* 2 colon separated 64 bit integers or the word 'unlimited' */
3780 char buf[INTTYPE_TO_STRLEN(uint64_t) * 2 + 2];
389f6466
CB		 3781 int partlen;
3782 struct lxc_limit *lim = it->elem;
3783
3784 if (lim->limit.rlim_cur == RLIM_INFINITY) {
6333c915
CB		 3785 memcpy(buf, "unlimited", STRLITERALLEN("unlimited") + 1);
3786 partlen = STRLITERALLEN("unlimited");
389f6466
CB		 3787 } else {
3788 partlen = sprintf(buf, "%" PRIu64,
3789 (uint64_t)lim->limit.rlim_cur);
3790 }
47903908 3791
389f6466 3792 if (lim->limit.rlim_cur != lim->limit.rlim_max) {
25a908b8 3793 if (lim->limit.rlim_max == RLIM_INFINITY)
389f6466 3794 memcpy(buf + partlen, ":unlimited",
6333c915 3795 STRLITERALLEN(":unlimited") + 1);
25a908b8 3796 else
389f6466
CB		 3797 sprintf(buf + partlen, ":%" PRIu64,
3798 (uint64_t)lim->limit.rlim_max);
389f6466
CB		 3799 }
3800
3801 if (get_all) {
240d4b74 3802 strprint(retv, inlen, "lxc.prlimit.%s = %s\n",
389f6466 3803 lim->resource, buf);
47903908 3804 } else if (strcmp(lim->resource, key) == 0) {
389f6466
CB		 3805 strprint(retv, inlen, "%s", buf);
3806 }
3807 }
3808
3809 return fulllen;
3810}
e08cb901 3811
e409b214
CB		 3812/* If you ask for a specific value, i.e. lxc.sysctl.net.ipv4.ip_forward, then
3813 * just the value will be printed. If you ask for 'lxc.sysctl', then all sysctl
3814 * entries will be printed, in 'lxc.sysctl.key = value' format.
7edd0540
L		 3815 */
3816static int get_config_sysctl(const char *key, char *retv, int inlen,
47903908 3817 struct lxc_conf *c, void *data)
7edd0540
L		 3818{
3819 int len;
3820 struct lxc_list *it;
3821 int fulllen = 0;
3822 bool get_all = false;
3823
3824 if (!retv)
3825 inlen = 0;
3826 else
3827 memset(retv, 0, inlen);
3828
3829 if (strcmp(key, "lxc.sysctl") == 0)
3830 get_all = true;
6333c915
CB		 3831 else if (strncmp(key, "lxc.sysctl.", STRLITERALLEN("lxc.sysctl.")) == 0)
3832 key += STRLITERALLEN("lxc.sysctl.");
7edd0540
L		 3833 else
3834 return -1;
3835
3836 lxc_list_for_each(it, &c->sysctls) {
3837 struct lxc_sysctl *elem = it->elem;
3838 if (get_all) {
47903908 3839 strprint(retv, inlen, "lxc.sysctl.%s = %s\n", elem->key,
3840 elem->value);
7edd0540
L		 3841 } else if (strcmp(elem->key, key) == 0) {
3842 strprint(retv, inlen, "%s", elem->value);
3843 }
3844 }
3845
3846 return fulllen;
3847}
3848
61d7a733 3849static int get_config_proc(const char *key, char *retv, int inlen,
47903908 3850 struct lxc_conf *c, void *data)
61d7a733
YT		 3851{
3852 struct lxc_list *it;
3853 int len;
3854 int fulllen = 0;
3855 bool get_all = false;
3856
3857 if (!retv)
3858 inlen = 0;
3859 else
3860 memset(retv, 0, inlen);
3861
3862 if (strcmp(key, "lxc.proc") == 0)
3863 get_all = true;
6333c915
CB		 3864 else if (strncmp(key, "lxc.proc.", STRLITERALLEN("lxc.proc.")) == 0)
3865 key += STRLITERALLEN("lxc.proc.");
61d7a733
YT		 3866 else
3867 return -1;
3868
3869 lxc_list_for_each(it, &c->procs) {
3870 struct lxc_proc *proc = it->elem;
3871
3872 if (get_all) {
3873 strprint(retv, inlen, "lxc.proc.%s = %s\n",
47903908 3874 proc->filename, proc->value);
61d7a733
YT		 3875 } else if (strcmp(proc->filename, key) == 0) {
3876 strprint(retv, inlen, "%s", proc->value);
3877 }
3878 }
3879
3880 return fulllen;
3881}
3882
1d8d3676
CB		 3883static int get_config_namespace_clone(const char *key, char *retv, int inlen,
3884 struct lxc_conf *c, void *data)
3885{
3886 int i, len;
3887 int fulllen = 0;
3888
3889 if (!retv)
3890 inlen = 0;
3891 else
3892 memset(retv, 0, inlen);
3893
3894 for (i = 0; i < LXC_NS_MAX; i++) {
3895 if (c->ns_clone & ns_info[i].clone_flag)
3896 strprint(retv, inlen, "%s\n", ns_info[i].proc_name);
3897 }
3898
3899 return fulllen;
3900}
3901
abeb5bba
CB		 3902static int get_config_namespace_keep(const char *key, char *retv, int inlen,
3903 struct lxc_conf *c, void *data)
3904{
3905 int i, len;
3906 int fulllen = 0;
3907
3908 if (!retv)
3909 inlen = 0;
3910 else
3911 memset(retv, 0, inlen);
3912
3913 for (i = 0; i < LXC_NS_MAX; i++) {
3914 if (c->ns_keep & ns_info[i].clone_flag)
3915 strprint(retv, inlen, "%s\n", ns_info[i].proc_name);
3916 }
3917
3918 return fulllen;
3919}
3920
b074bbf1
CB		 3921static int get_config_namespace_share(const char *key, char *retv, int inlen,
3922 struct lxc_conf *c, void *data)
28d9e29e
CB		 3923{
3924 int len, ns_idx;
3925 const char *namespace;
3926 int fulllen = 0;
3927
3928 if (!retv)
3929 inlen = 0;
3930 else
3931 memset(retv, 0, inlen);
3932
6333c915 3933 namespace = key + STRLITERALLEN("lxc.namespace.share.");
28d9e29e
CB		 3934 ns_idx = lxc_namespace_2_ns_idx(namespace);
3935 if (ns_idx < 0)
3936 return ns_idx;
3937
b074bbf1 3938 strprint(retv, inlen, "%s", c->ns_share[ns_idx]);
28d9e29e
CB		 3939
3940 return fulllen;
3941}
3942
e08cb901 3943/* Callbacks to clear config items. */
26471403
CB		 3944static inline int clr_config_personality(const char *key, struct lxc_conf *c,
3945 void *data)
e08cb901
CB		 3946{
3947 c->personality = -1;
3948 return 0;
3949}
03818ae3 3950
232763d6
CB		 3951static inline int clr_config_pty_max(const char *key, struct lxc_conf *c,
3952 void *data)
03818ae3 3953{
e528c735 3954 c->pty_max = 0;
03818ae3
CB		 3955 return 0;
3956}
e7a4b096 3957
fe1c5887
CB		 3958static inline int clr_config_tty_max(const char *key, struct lxc_conf *c,
3959 void *data)
e7a4b096 3960{
885766f5 3961 c->ttys.tty = 0;
e7a4b096
CB		 3962 return 0;
3963}
eaf8c0c7 3964
42e53c29 3965static inline int clr_config_tty_dir(const char *key, struct lxc_conf *c,
26471403 3966 void *data)
eaf8c0c7 3967{
885766f5
CB		 3968 free(c->ttys.dir);
3969 c->ttys.dir = NULL;
eaf8c0c7
CB		 3970 return 0;
3971}
6bd86308 3972
953fe44f
CB		 3973static inline int clr_config_apparmor_profile(const char *key,
3974 struct lxc_conf *c, void *data)
025718fb
CB		 3975{
3976 free(c->lsm_aa_profile);
3977 c->lsm_aa_profile = NULL;
3978 return 0;
3979}
3061e04e 3980
953fe44f
CB		 3981static inline int clr_config_apparmor_allow_incomplete(const char *key,
3982 struct lxc_conf *c,
3983 void *data)
3061e04e
CB		 3984{
3985 c->lsm_aa_allow_incomplete = 0;
3986 return 0;
3987}
31fc3494 3988
1800f924
WB		 3989static inline int clr_config_apparmor_allow_nesting(const char *key,
3990 struct lxc_conf *c,
3991 void *data)
3992{
3993 c->lsm_aa_allow_nesting = 0;
3994 return 0;
3995}
3996
3997static inline int clr_config_apparmor_raw(const char *key,
3998 struct lxc_conf *c,
3999 void *data)
4000{
4001 return lxc_clear_apparmor_raw(c);
4002}
4003
953fe44f
CB		 4004static inline int clr_config_selinux_context(const char *key,
4005 struct lxc_conf *c, void *data)
31fc3494
CB		 4006{
4007 free(c->lsm_se_context);
4008 c->lsm_se_context = NULL;
4009 return 0;
4010}
754d01ce 4011
43654d34
CB		 4012static inline int clr_config_cgroup_controller(const char *key,
4013 struct lxc_conf *c, void *data)
754d01ce 4014{
54860ed0
CB		 4015 return lxc_clear_cgroups(c, key, CGROUP_SUPER_MAGIC);
4016}
4017
4018static inline int clr_config_cgroup2_controller(const char *key,
4019 struct lxc_conf *c, void *data)
4020{
4021 return lxc_clear_cgroups(c, key, CGROUP2_SUPER_MAGIC);
754d01ce 4022}
d3a178de 4023
43654d34
CB		 4024static int clr_config_cgroup_dir(const char *key, struct lxc_conf *lxc_conf,
4025 void *data)
4026{
4027 if (lxc_conf->cgroup_meta.dir) {
4028 free(lxc_conf->cgroup_meta.dir);
4029 lxc_conf->cgroup_meta.dir = NULL;
4030 }
4031
4032 return 0;
4033}
4034
9caee129
CB		 4035static inline int clr_config_cgroup_relative(const char *key,
4036 struct lxc_conf *lxc_conf,
4037 void *data)
76f0e2e7 4038{
9caee129 4039 lxc_conf->cgroup_meta.relative = false;
76f0e2e7
CB		 4040 return 0;
4041}
4042
26471403
CB		 4043static inline int clr_config_idmaps(const char *key, struct lxc_conf *c,
4044 void *data)
d3a178de
CB		 4045{
4046 return lxc_clear_idmaps(c);
4047}
97d3338d 4048
46cc906d 4049static inline int clr_config_log_level(const char *key, struct lxc_conf *c,
26471403 4050 void *data)
97d3338d 4051{
4b73005c 4052 c->loglevel = LXC_LOG_LEVEL_NOTSET;
97d3338d
CB		 4053 return 0;
4054}
de46099c 4055
46cc906d 4056static inline int clr_config_log_file(const char *key, struct lxc_conf *c,
26471403 4057 void *data)
de46099c
CB		 4058{
4059 free(c->logfile);
4060 c->logfile = NULL;
4061 return 0;
4062}
b4fa13cd 4063
26471403
CB		 4064static inline int clr_config_mount(const char *key, struct lxc_conf *c,
4065 void *data)
b4fa13cd
CB		 4066{
4067 return lxc_clear_mount_entries(c);
4068}
4be81021 4069
26471403
CB		 4070static inline int clr_config_mount_auto(const char *key, struct lxc_conf *c,
4071 void *data)
4be81021
CB		 4072{
4073 return lxc_clear_automounts(c);
4074}
350d4b15 4075
47148e96
CB		 4076static inline int clr_config_mount_fstab(const char *key, struct lxc_conf *c,
4077 void *data)
350d4b15
CB		 4078{
4079 free(c->fstab);
4080 c->fstab = NULL;
4081 return 0;
4082}
faca124d 4083
7a96a068
CB		 4084static inline int clr_config_rootfs_path(const char *key, struct lxc_conf *c,
4085 void *data)
faca124d
CB		 4086{
4087 free(c->rootfs.path);
4088 c->rootfs.path = NULL;
4089 return 0;
4090}
4091
6e54330c
CB		 4092static inline int clr_config_rootfs_managed(const char *key, struct lxc_conf *c,
4093 void *data)
4094{
4095 c->rootfs.managed = true;
4096 return 0;
4097}
4098
26471403
CB		 4099static inline int clr_config_rootfs_mount(const char *key, struct lxc_conf *c,
4100 void *data)
fddefc2d
CB		 4101{
4102 free(c->rootfs.mount);
4103 c->rootfs.mount = NULL;
4104 return 0;
4105}
7b1eb67d 4106
26471403
CB		 4107static inline int clr_config_rootfs_options(const char *key, struct lxc_conf *c,
4108 void *data)
7b1eb67d
CB		 4109{
4110 free(c->rootfs.options);
4111 c->rootfs.options = NULL;
3437f95c
CB		 4112
4113 free(c->rootfs.data);
4114 c->rootfs.data = NULL;
4115
7b1eb67d
CB		 4116 return 0;
4117}
02becb8d 4118
b67771bc 4119static inline int clr_config_uts_name(const char *key, struct lxc_conf *c,
26471403 4120 void *data)
d31d0103
CB		 4121{
4122 free(c->utsname);
4123 c->utsname = NULL;
4124 return 0;
4125}
c9eeb90c 4126
26471403
CB		 4127static inline int clr_config_hooks(const char *key, struct lxc_conf *c,
4128 void *data)
c9eeb90c
CB		 4129{
4130 return lxc_clear_hooks(c, key);
4131}
4132
44ae0fb6
CB		 4133static inline int clr_config_hooks_version(const char *key, struct lxc_conf *c,
4134 void *data)
4135{
4136 /* default to legacy hooks version */
4137 c->hooks_version = 0;
4138 return 0;
4139}
4140
f9373e40
CB		 4141static inline int clr_config_net(const char *key, struct lxc_conf *c,
4142 void *data)
f4488271 4143{
c302b476
CB		 4144 lxc_free_networks(&c->network);
4145
e5d2fd7c 4146 return 0;
f4488271
CB		 4147}
4148
26471403
CB		 4149static inline int clr_config_cap_drop(const char *key, struct lxc_conf *c,
4150 void *data)
244cb55b
CB		 4151{
4152 return lxc_clear_config_caps(c);
4153}
c74cc490 4154
26471403
CB		 4155static inline int clr_config_cap_keep(const char *key, struct lxc_conf *c,
4156 void *data)
c74cc490
CB		 4157{
4158 return lxc_clear_config_keepcaps(c);
4159}
4e5b633f 4160
3aed4934
CB		 4161static inline int clr_config_console_path(const char *key, struct lxc_conf *c,
4162 void *data)
4e5b633f
CB		 4163{
4164 free(c->console.path);
4165 c->console.path = NULL;
4166 return 0;
4167}
4168
7c2ec23a 4169static inline int clr_config_console_logfile(const char *key,
26471403 4170 struct lxc_conf *c, void *data)
7c2ec23a
CB		 4171{
4172 free(c->console.log_path);
4173 c->console.log_path = NULL;
4174 return 0;
4175}
bbca37d8 4176
d91adfa6
CB		 4177static inline int clr_config_console_rotate(const char *key, struct lxc_conf *c,
4178 void *data)
4179{
4180 c->console.log_rotate = 0;
4181 return 0;
4182}
4183
28f3b1cd
CB		 4184static inline int clr_config_console_buffer_size(const char *key,
4185 struct lxc_conf *c, void *data)
a04220de 4186{
28f3b1cd 4187 c->console.buffer_size = 0;
a04220de
CB		 4188 return 0;
4189}
4190
861813e5
CB		 4191static inline int clr_config_console_size(const char *key, struct lxc_conf *c,
4192 void *data)
4193{
4194 c->console.log_size = 0;
4195 return 0;
4196}
4197
0b427da0
CB		 4198static inline int clr_config_seccomp_profile(const char *key,
4199 struct lxc_conf *c, void *data)
bbca37d8
CB		 4200{
4201 free(c->seccomp);
4202 c->seccomp = NULL;
4203 return 0;
4204}
c721e86c 4205
26471403
CB		 4206static inline int clr_config_autodev(const char *key, struct lxc_conf *c,
4207 void *data)
c721e86c
CB		 4208{
4209 c->autodev = 1;
4210 return 0;
4211}
87b288d1 4212
55c84efc 4213static inline int clr_config_signal_halt(const char *key, struct lxc_conf *c,
26471403 4214 void *data)
87b288d1
CB		 4215{
4216 c->haltsignal = 0;
4217 return 0;
4218}
cae63cfa 4219
55c84efc 4220static inline int clr_config_signal_reboot(const char *key, struct lxc_conf *c,
26471403 4221 void *data)
cae63cfa
CB		 4222{
4223 c->rebootsignal = 0;
4224 return 0;
4225}
de45f3a8 4226
55c84efc 4227static inline int clr_config_signal_stop(const char *key, struct lxc_conf *c,
26471403 4228 void *data)
de45f3a8
CB		 4229{
4230 c->stopsignal = 0;
4231 return 0;
4232}
c6182222 4233
26471403
CB		 4234static inline int clr_config_start(const char *key, struct lxc_conf *c,
4235 void *data)
c6182222
CB		 4236{
4237 if (strcmp(key + 10, "auto") == 0)
4238 c->start_auto = 0;
4239 else if (strcmp(key + 10, "delay") == 0)
4240 c->start_delay = 0;
4241 else if (strcmp(key + 10, "order") == 0)
4242 c->start_order = 0;
4243
4244 return 0;
4245}
998ca94f 4246
46cc906d 4247static inline int clr_config_log_syslog(const char *key, struct lxc_conf *c,
26471403 4248 void *data)
998ca94f
CB		 4249{
4250 free(c->syslog);
4251 c->syslog = NULL;
4252 return 0;
4253}
adad12ca 4254
26471403
CB		 4255static inline int clr_config_monitor(const char *key, struct lxc_conf *c,
4256 void *data)
adad12ca
CB		 4257{
4258 c->monitor_unshare = 0;
4259 return 0;
4260}
4850d223 4261
258f8051
CB		 4262static inline int clr_config_monitor_signal_pdeath(const char *key,
4263 struct lxc_conf *c, void *data)
4264{
4265 c->monitor_signal_pdeath = 0;
4266 return 0;
4267}
4268
26471403
CB		 4269static inline int clr_config_group(const char *key, struct lxc_conf *c,
4270 void *data)
4850d223
CB		 4271{
4272 return lxc_clear_groups(c);
4273}
832fb63a 4274
26471403
CB		 4275static inline int clr_config_environment(const char *key, struct lxc_conf *c,
4276 void *data)
832fb63a
CB		 4277{
4278 return lxc_clear_environment(c);
4850d223 4279}
8e90af3e 4280
5cda27c1
SH		 4281static inline int clr_config_execute_cmd(const char *key, struct lxc_conf *c,
4282 void *data)
4283{
4284 free(c->execute_cmd);
4285 c->execute_cmd = NULL;
4286 return 0;
4287}
4288
26471403
CB		 4289static inline int clr_config_init_cmd(const char *key, struct lxc_conf *c,
4290 void *data)
8e90af3e
CB		 4291{
4292 free(c->init_cmd);
4293 c->init_cmd = NULL;
4294 return 0;
4295}
ec76dcfb 4296
3c491553
L		 4297static inline int clr_config_init_cwd(const char *key, struct lxc_conf *c,
4298 void *data)
4299{
4300 free(c->init_cwd);
4301 c->init_cwd = NULL;
4302 return 0;
4303}
4304
26471403
CB		 4305static inline int clr_config_init_uid(const char *key, struct lxc_conf *c,
4306 void *data)
ec76dcfb
CB		 4307{
4308 c->init_uid = 0;
4309 return 0;
4310}
1044b247 4311
26471403
CB		 4312static inline int clr_config_init_gid(const char *key, struct lxc_conf *c,
4313 void *data)
1044b247
CB		 4314{
4315 c->init_gid = 0;
4316 return 0;
4317}
59e370db 4318
26471403
CB		 4319static inline int clr_config_ephemeral(const char *key, struct lxc_conf *c,
4320 void *data)
59e370db
CB		 4321{
4322 c->ephemeral = 0;
4323 return 0;
4324}
b98c5ab0 4325
26471403
CB		 4326static inline int clr_config_no_new_privs(const char *key, struct lxc_conf *c,
4327 void *data)
b98c5ab0
CB		 4328{
4329 c->no_new_privs = false;
4330 return 0;
4331}
715ccc96 4332
240d4b74 4333static inline int clr_config_prlimit(const char *key, struct lxc_conf *c,
26471403 4334 void *data)
715ccc96
CB		 4335{
4336 return lxc_clear_limits(c, key);
4337}
fdf3c589 4338
7edd0540
L		 4339static inline int clr_config_sysctl(const char *key, struct lxc_conf *c,
4340 void *data)
4341{
4342 return lxc_clear_sysctls(c, key);
4343}
4344
61d7a733
YT		 4345static inline int clr_config_proc(const char *key, struct lxc_conf *c,
4346 void *data)
4347{
4348 return lxc_clear_procs(c, key);
4349}
4350
26471403
CB		 4351static inline int clr_config_includefiles(const char *key, struct lxc_conf *c,
4352 void *data)
fdf3c589
CB		 4353{
4354 lxc_clear_includes(c);
4355 return 0;
4356}
a3c8e600 4357
1d8d3676
CB		 4358static int clr_config_namespace_clone(const char *key,
4359 struct lxc_conf *lxc_conf, void *data)
4360{
4361 lxc_conf->ns_clone = 0;
4362 return 0;
4363}
4364
abeb5bba
CB		 4365static int clr_config_namespace_keep(const char *key, struct lxc_conf *lxc_conf,
4366 void *data)
4367{
4368 lxc_conf->ns_keep = 0;
4369 return 0;
4370}
4371
b074bbf1
CB		 4372static int clr_config_namespace_share(const char *key,
4373 struct lxc_conf *lxc_conf, void *data)
28d9e29e
CB		 4374{
4375 int ns_idx;
4376 const char *namespace;
4377
6333c915 4378 namespace = key + STRLITERALLEN("lxc.namespace.share.");
28d9e29e
CB		 4379 ns_idx = lxc_namespace_2_ns_idx(namespace);
4380 if (ns_idx < 0)
4381 return ns_idx;
4382
b074bbf1
CB		 4383 free(lxc_conf->ns_share[ns_idx]);
4384 lxc_conf->ns_share[ns_idx] = NULL;
28d9e29e
CB		 4385
4386 return 0;
4387}
4388
a3c8e600 4389static int get_config_includefiles(const char *key, char *retv, int inlen,
cccd2219 4390 struct lxc_conf *c, void *data)
a3c8e600
CB		 4391{
4392 return -ENOSYS;
4393}
40db5d2f 4394
31ee747b
CB		 4395static struct lxc_config_t *get_network_config_ops(const char *key,
4396 struct lxc_conf *lxc_conf,
4397 ssize_t *idx,
4398 char **deindexed_key)
40db5d2f 4399{
31ee747b
CB		 4400 int ret;
4401 unsigned int tmpidx;
4402 size_t numstrlen;
40db5d2f
CB		 4403 char *copy, *idx_start, *idx_end;
4404 struct lxc_config_t *config = NULL;
4405
4406 /* check that this is a sensible network key */
31ee747b
CB		 4407 if (strncmp("lxc.net.", key, 8)) {
4408 ERROR("Invalid network configuration key \"%s\"", key);
40db5d2f 4409 return NULL;
31ee747b 4410 }
40db5d2f
CB		 4411
4412 copy = strdup(key);
31ee747b
CB		 4413 if (!copy) {
4414 ERROR("Failed to duplicate string \"%s\"", key);
40db5d2f 4415 return NULL;
31ee747b 4416 }
40db5d2f 4417
f9373e40 4418 /* lxc.net.<n> */
31ee747b
CB		 4419 if (!isdigit(*(key + 8))) {
4420 ERROR("Failed to detect digit in string \"%s\"", key + 8);
4421 goto on_error;
4422 }
40db5d2f 4423
31ee747b
CB		 4424 /* beginning of index string */
4425 idx_start = (copy + 7);
4426 *idx_start = '\0';
40db5d2f 4427
31ee747b
CB		 4428 /* end of index string */
4429 idx_end = strchr((copy + 8), '.');
7451daf8
CB		 4430 if (idx_end)
4431 *idx_end = '\0';
31ee747b
CB		 4432
4433 /* parse current index */
4434 ret = lxc_safe_uint((idx_start + 1), &tmpidx);
4435 if (ret < 0) {
6d1400b5 4436 errno = -ret;
ae52f396 4437 SYSERROR("Failed to parse unsigned integer from string \"%s\"",
6d1400b5 4438 idx_start + 1);
31ee747b
CB		 4439 *idx = ret;
4440 goto on_error;
4441 }
40db5d2f 4442
31ee747b
CB		 4443 /* This, of course is utterly nonsensical on so many levels, but
4444 * better safe than sorry.
4445 * (Checking for INT_MAX here is intentional.)
4446 */
4447 if (tmpidx == INT_MAX) {
25a908b8 4448 SYSERROR("Number of configured networks would overflow the "
47903908 4449 "counter");
31ee747b 4450 goto on_error;
40db5d2f 4451 }
31ee747b
CB		 4452 *idx = tmpidx;
4453
4454 numstrlen = strlen((idx_start + 1));
4455
4456 /* repair configuration key */
4457 *idx_start = '.';
31ee747b 4458
7451daf8
CB		 4459 /* lxc.net.<idx>.<subkey> */
4460 if (idx_end) {
4461 *idx_end = '.';
24fa7df6
FA		 4462 if (strlen(idx_end + 1) == 0) {
4463 ERROR("No subkey in network configuration key \"%s\"", key);
4464 goto on_error;
4465 }
40db5d2f 4466
7451daf8
CB		 4467 memmove(copy + 8, idx_end + 1, strlen(idx_end + 1));
4468 copy[strlen(key) - numstrlen + 1] = '\0';
4469
300df83e 4470 config = lxc_get_config(copy);
7451daf8 4471 if (!config) {
25a908b8 4472 ERROR("Unknown network configuration key \"%s\"", key);
7451daf8
CB		 4473 goto on_error;
4474 }
31ee747b
CB		 4475 }
4476
7451daf8
CB		 4477 if (deindexed_key)
4478 *deindexed_key = copy;
4479
31ee747b 4480 return config;
40db5d2f
CB		 4481
4482on_error:
4483 free(copy);
31ee747b 4484 return NULL;
40db5d2f
CB		 4485}
4486
25a908b8
CB		 4487/* Config entry is something like "lxc.net.0.ipv4" the key 'lxc.net.' was
4488 * found. So we make sure next comes an integer, find the right callback (by
4489 * rewriting the key), and call it.
40db5d2f 4490 */
f9373e40
CB		 4491static int set_config_net_nic(const char *key, const char *value,
4492 struct lxc_conf *lxc_conf, void *data)
40db5d2f 4493{
31ee747b
CB		 4494 int ret;
4495 const char *idxstring;
40db5d2f
CB		 4496 struct lxc_config_t *config;
4497 struct lxc_netdev *netdev;
4498 ssize_t idx = -1;
31ee747b
CB		 4499 char *deindexed_key = NULL;
4500
4501 idxstring = key + 8;
4502 if (!isdigit(*idxstring))
4503 return -1;
40db5d2f 4504
6bed0fb6 4505 if (lxc_config_value_empty(value))
f9373e40 4506 return clr_config_net_nic(key, lxc_conf, data);
6bed0fb6 4507
31ee747b 4508 config = get_network_config_ops(key, lxc_conf, &idx, &deindexed_key);
40db5d2f
CB		 4509 if (!config || idx < 0)
4510 return -1;
4511
0070b1c4 4512 netdev = lxc_get_netdev_by_idx(lxc_conf, (unsigned int)idx, true);
31ee747b
CB		 4513 if (!netdev) {
4514 free(deindexed_key);
40db5d2f 4515 return -1;
31ee747b 4516 }
40db5d2f 4517
31ee747b
CB		 4518 ret = config->set(deindexed_key, value, lxc_conf, netdev);
4519 free(deindexed_key);
47903908 4520
31ee747b 4521 return ret;
40db5d2f 4522}
ff6da295 4523
f9373e40
CB		 4524static int clr_config_net_nic(const char *key, struct lxc_conf *lxc_conf,
4525 void *data)
ff6da295 4526{
31ee747b 4527 int ret;
519df1c1 4528 const char *idxstring;
ff6da295
CB		 4529 struct lxc_config_t *config;
4530 struct lxc_netdev *netdev;
31ee747b
CB		 4531 ssize_t idx = -1;
4532 char *deindexed_key = NULL;
519df1c1 4533
31ee747b
CB		 4534 idxstring = key + 8;
4535 if (!isdigit(*idxstring))
519df1c1
CB		 4536 return -1;
4537
519df1c1 4538 /* The left conjunct is pretty self-explanatory. The right conjunct
31ee747b 4539 * checks whether the two pointers are equal. If they are we know that
519df1c1
CB		 4540 * this is not a key that is namespaced any further and so we are
4541 * supposed to clear the whole network.
4542 */
4543 if (isdigit(*idxstring) && (strrchr(key, '.') == (idxstring - 1))) {
4544 unsigned int rmnetdevidx;
4545
4546 if (lxc_safe_uint(idxstring, &rmnetdevidx) < 0)
4547 return -1;
4548
4549 /* Remove network from network list. */
4550 lxc_remove_nic_by_idx(lxc_conf, rmnetdevidx);
4551 return 0;
4552 }
ff6da295 4553
31ee747b 4554 config = get_network_config_ops(key, lxc_conf, &idx, &deindexed_key);
ff6da295
CB		 4555 if (!config || idx < 0)
4556 return -1;
4557
0070b1c4 4558 netdev = lxc_get_netdev_by_idx(lxc_conf, (unsigned int)idx, false);
31ee747b
CB		 4559 if (!netdev) {
4560 free(deindexed_key);
ff6da295 4561 return -1;
31ee747b 4562 }
ff6da295 4563
31ee747b
CB		 4564 ret = config->clr(deindexed_key, lxc_conf, netdev);
4565 free(deindexed_key);
47903908 4566
31ee747b 4567 return ret;
ff6da295
CB		 4568}
4569
f9373e40
CB		 4570static int clr_config_net_type(const char *key, struct lxc_conf *lxc_conf,
4571 void *data)
ff6da295 4572{
070a05af 4573 struct lxc_netdev *netdev = data;
ff6da295 4574
ff6da295
CB		 4575 if (!netdev)
4576 return -1;
4577
4578 netdev->type = -1;
4579
4580 return 0;
4581}
4582
f9373e40
CB		 4583static int clr_config_net_name(const char *key, struct lxc_conf *lxc_conf,
4584 void *data)
ff6da295 4585{
070a05af 4586 struct lxc_netdev *netdev = data;
ff6da295 4587
ff6da295
CB		 4588 if (!netdev)
4589 return -1;
4590
de4855a8 4591 netdev->name[0] = '\0';
ff6da295
CB		 4592
4593 return 0;
4594}
4595
f9373e40
CB		 4596static int clr_config_net_flags(const char *key, struct lxc_conf *lxc_conf,
4597 void *data)
ff6da295 4598{
070a05af 4599 struct lxc_netdev *netdev = data;
ff6da295 4600
ff6da295
CB		 4601 if (!netdev)
4602 return -1;
4603
4604 netdev->flags = 0;
4605
4606 return 0;
4607}
4608
f9373e40
CB		 4609static int clr_config_net_link(const char *key, struct lxc_conf *lxc_conf,
4610 void *data)
ff6da295 4611{
070a05af 4612 struct lxc_netdev *netdev = data;
ff6da295 4613
ff6da295
CB		 4614 if (!netdev)
4615 return -1;
4616
de4855a8 4617 netdev->link[0] = '\0';
ff6da295
CB		 4618
4619 return 0;
4620}
4621
f9373e40
CB		 4622static int clr_config_net_macvlan_mode(const char *key,
4623 struct lxc_conf *lxc_conf, void *data)
ff6da295 4624{
070a05af 4625 struct lxc_netdev *netdev = data;
ff6da295 4626
ff6da295
CB		 4627 if (!netdev)
4628 return -1;
4629
6bed0fb6
CB		 4630 if (netdev->type != LXC_NET_MACVLAN)
4631 return 0;
4632
ff6da295
CB		 4633 netdev->priv.macvlan_attr.mode = -1;
4634
4635 return 0;
4636}
4637
f9373e40
CB		 4638static int clr_config_net_veth_pair(const char *key, struct lxc_conf *lxc_conf,
4639 void *data)
ff6da295 4640{
070a05af 4641 struct lxc_netdev *netdev = data;
ff6da295 4642
ff6da295
CB		 4643 if (!netdev)
4644 return -1;
4645
de4855a8 4646 netdev->priv.veth_attr.pair[0] = '\0';
ff6da295
CB		 4647
4648 return 0;
4649}
4650
f9373e40
CB		 4651static int clr_config_net_script_up(const char *key, struct lxc_conf *lxc_conf,
4652 void *data)
ff6da295 4653{
070a05af 4654 struct lxc_netdev *netdev = data;
ff6da295 4655
ff6da295
CB		 4656 if (!netdev)
4657 return -1;
4658
4659 free(netdev->upscript);
4660 netdev->upscript = NULL;
4661
4662 return 0;
4663}
4664
f9373e40
CB		 4665static int clr_config_net_script_down(const char *key,
4666 struct lxc_conf *lxc_conf, void *data)
ff6da295 4667{
070a05af 4668 struct lxc_netdev *netdev = data;
ff6da295 4669
ff6da295
CB		 4670 if (!netdev)
4671 return -1;
4672
4673 free(netdev->downscript);
4674 netdev->downscript = NULL;
4675
4676 return 0;
4677}
4678
f9373e40
CB		 4679static int clr_config_net_hwaddr(const char *key, struct lxc_conf *lxc_conf,
4680 void *data)
ff6da295 4681{
070a05af 4682 struct lxc_netdev *netdev = data;
ff6da295 4683
ff6da295
CB		 4684 if (!netdev)
4685 return -1;
4686
4687 free(netdev->hwaddr);
4688 netdev->hwaddr = NULL;
4689
4690 return 0;
4691}
4692
f9373e40
CB		 4693static int clr_config_net_mtu(const char *key, struct lxc_conf *lxc_conf,
4694 void *data)
ff6da295 4695{
070a05af 4696 struct lxc_netdev *netdev = data;
ff6da295 4697
ff6da295
CB		 4698 if (!netdev)
4699 return -1;
4700
4701 free(netdev->mtu);
4702 netdev->mtu = NULL;
4703
4704 return 0;
4705}
4706
f9373e40
CB		 4707static int clr_config_net_vlan_id(const char *key, struct lxc_conf *lxc_conf,
4708 void *data)
ff6da295 4709{
070a05af 4710 struct lxc_netdev *netdev = data;
ff6da295 4711
ff6da295
CB		 4712 if (!netdev)
4713 return -1;
4714
4715 netdev->priv.vlan_attr.vid = 0;
4716
4717 return 0;
4718}
4719
f9373e40
CB		 4720static int clr_config_net_ipv4_gateway(const char *key,
4721 struct lxc_conf *lxc_conf, void *data)
ff6da295 4722{
070a05af 4723 struct lxc_netdev *netdev = data;
ff6da295 4724
ff6da295
CB		 4725 if (!netdev)
4726 return -1;
4727
4728 free(netdev->ipv4_gateway);
4729 netdev->ipv4_gateway = NULL;
4730
4731 return 0;
4732}
4733
9ff60df2
CB		 4734static int clr_config_net_ipv4_address(const char *key,
4735 struct lxc_conf *lxc_conf, void *data)
ff6da295 4736{
070a05af 4737 struct lxc_netdev *netdev = data;
ff6da295
CB		 4738 struct lxc_list *cur, *next;
4739
ecbb3790
CB		 4740 if (!netdev)
4741 return -1;
ff6da295
CB		 4742
4743 lxc_list_for_each_safe(cur, &netdev->ipv4, next) {
4744 lxc_list_del(cur);
4745 free(cur->elem);
4746 free(cur);
4747 }
4748
4749 return 0;
4750}
4751
f9373e40
CB		 4752static int clr_config_net_ipv6_gateway(const char *key,
4753 struct lxc_conf *lxc_conf, void *data)
ff6da295 4754{
070a05af 4755 struct lxc_netdev *netdev = data;
ff6da295 4756
ff6da295
CB		 4757 if (!netdev)
4758 return -1;
4759
4760 free(netdev->ipv6_gateway);
4761 netdev->ipv6_gateway = NULL;
4762
4763 return 0;
4764}
4765
2e44ae28
CB		 4766static int clr_config_net_ipv6_address(const char *key,
4767 struct lxc_conf *lxc_conf, void *data)
ff6da295 4768{
070a05af 4769 struct lxc_netdev *netdev = data;
ff6da295
CB		 4770 struct lxc_list *cur, *next;
4771
ecbb3790
CB		 4772 if (!netdev)
4773 return -1;
ff6da295
CB		 4774
4775 lxc_list_for_each_safe(cur, &netdev->ipv6, next) {
4776 lxc_list_del(cur);
4777 free(cur->elem);
4778 free(cur);
4779 }
4780
4781 return 0;
4782}
9d4bf22d 4783
f9373e40
CB		 4784static int get_config_net_nic(const char *key, char *retv, int inlen,
4785 struct lxc_conf *c, void *data)
9d4bf22d 4786{
31ee747b
CB		 4787 int ret;
4788 const char *idxstring;
9d4bf22d
CB		 4789 struct lxc_config_t *config;
4790 struct lxc_netdev *netdev;
4791 ssize_t idx = -1;
31ee747b 4792 char *deindexed_key = NULL;
9d4bf22d 4793
31ee747b
CB		 4794 idxstring = key + 8;
4795 if (!isdigit(*idxstring))
4796 return -1;
4797
4798 config = get_network_config_ops(key, c, &idx, &deindexed_key);
9d4bf22d
CB		 4799 if (!config || idx < 0)
4800 return -1;
4801
0070b1c4 4802 netdev = lxc_get_netdev_by_idx(c, (unsigned int)idx, false);
31ee747b
CB		 4803 if (!netdev) {
4804 free(deindexed_key);
9d4bf22d 4805 return -1;
31ee747b 4806 }
9d4bf22d 4807
31ee747b
CB		 4808 ret = config->get(deindexed_key, retv, inlen, c, netdev);
4809 free(deindexed_key);
47903908 4810
31ee747b 4811 return ret;
9d4bf22d
CB		 4812}
4813
f9373e40
CB		 4814static int get_config_net_type(const char *key, char *retv, int inlen,
4815 struct lxc_conf *c, void *data)
9d4bf22d 4816{
070a05af
CB		 4817 int len;
4818 int fulllen = 0;
4819 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4820
4821 if (!retv)
4822 inlen = 0;
4823 else
4824 memset(retv, 0, inlen);
4825
9d4bf22d
CB		 4826 if (!netdev)
4827 return -1;
4828
4829 strprint(retv, inlen, "%s", lxc_net_type_to_str(netdev->type));
4830
4831 return fulllen;
4832}
4833
f9373e40
CB		 4834static int get_config_net_flags(const char *key, char *retv, int inlen,
4835 struct lxc_conf *c, void *data)
9d4bf22d 4836{
070a05af
CB		 4837 int len;
4838 int fulllen = 0;
4839 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4840
4841 if (!retv)
4842 inlen = 0;
4843 else
4844 memset(retv, 0, inlen);
4845
9d4bf22d
CB		 4846 if (!netdev)
4847 return -1;
4848
4849 if (netdev->flags & IFF_UP)
4850 strprint(retv, inlen, "up");
4851
4852 return fulllen;
4853}
4854
f9373e40
CB		 4855static int get_config_net_link(const char *key, char *retv, int inlen,
4856 struct lxc_conf *c, void *data)
9d4bf22d 4857{
070a05af
CB		 4858 int len;
4859 int fulllen = 0;
4860 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4861
4862 if (!retv)
4863 inlen = 0;
4864 else
4865 memset(retv, 0, inlen);
4866
9d4bf22d
CB		 4867 if (!netdev)
4868 return -1;
4869
de4855a8 4870 if (netdev->link[0] != '\0')
9d4bf22d
CB		 4871 strprint(retv, inlen, "%s", netdev->link);
4872
4873 return fulllen;
4874}
4875
f9373e40
CB		 4876static int get_config_net_name(const char *key, char *retv, int inlen,
4877 struct lxc_conf *c, void *data)
9d4bf22d 4878{
070a05af
CB		 4879 int len;
4880 int fulllen = 0;
4881 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4882
4883 if (!retv)
4884 inlen = 0;
4885 else
4886 memset(retv, 0, inlen);
4887
9d4bf22d
CB		 4888 if (!netdev)
4889 return -1;
4890
de4855a8 4891 if (netdev->name[0] != '\0')
9d4bf22d
CB		 4892 strprint(retv, inlen, "%s", netdev->name);
4893
4894 return fulllen;
4895}
4896
f9373e40
CB		 4897static int get_config_net_macvlan_mode(const char *key, char *retv, int inlen,
4898 struct lxc_conf *c, void *data)
9d4bf22d 4899{
070a05af
CB		 4900 int len;
4901 int fulllen = 0;
9d4bf22d 4902 const char *mode;
070a05af 4903 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4904
4905 if (!retv)
4906 inlen = 0;
4907 else
4908 memset(retv, 0, inlen);
4909
9d4bf22d
CB		 4910 if (!netdev)
4911 return -1;
4912
4913 if (netdev->type != LXC_NET_MACVLAN)
4914 return 0;
4915
4916 switch (netdev->priv.macvlan_attr.mode) {
4917 case MACVLAN_MODE_PRIVATE:
4918 mode = "private";
4919 break;
4920 case MACVLAN_MODE_VEPA:
4921 mode = "vepa";
4922 break;
4923 case MACVLAN_MODE_BRIDGE:
4924 mode = "bridge";
4925 break;
4926 case MACVLAN_MODE_PASSTHRU:
4927 mode = "passthru";
4928 break;
4929 default:
4930 mode = "(invalid)";
4931 break;
4932 }
4933
4934 strprint(retv, inlen, "%s", mode);
4935
4936 return fulllen;
4937}
4938
f9373e40
CB		 4939static int get_config_net_veth_pair(const char *key, char *retv, int inlen,
4940 struct lxc_conf *c, void *data)
9d4bf22d 4941{
070a05af
CB		 4942 int len;
4943 int fulllen = 0;
4944 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4945
4946 if (!retv)
4947 inlen = 0;
4948 else
4949 memset(retv, 0, inlen);
4950
9d4bf22d
CB		 4951 if (!netdev)
4952 return -1;
4953
4954 if (netdev->type != LXC_NET_VETH)
4955 return 0;
4956
4957 strprint(retv, inlen, "%s",
de4855a8
CB		 4958 netdev->priv.veth_attr.pair[0] != '\0'
4959 ? netdev->priv.veth_attr.pair
4960 : netdev->priv.veth_attr.veth1);
9d4bf22d
CB		 4961
4962 return fulllen;
4963}
4964
f9373e40
CB		 4965static int get_config_net_script_up(const char *key, char *retv, int inlen,
4966 struct lxc_conf *c, void *data)
9d4bf22d 4967{
070a05af
CB		 4968 int len;
4969 int fulllen = 0;
4970 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4971
4972 if (!retv)
4973 inlen = 0;
4974 else
4975 memset(retv, 0, inlen);
4976
9d4bf22d
CB		 4977 if (!netdev)
4978 return -1;
4979
4980 if (netdev->upscript)
4981 strprint(retv, inlen, "%s", netdev->upscript);
4982
4983 return fulllen;
4984}
4985
f9373e40
CB		 4986static int get_config_net_script_down(const char *key, char *retv, int inlen,
4987 struct lxc_conf *c, void *data)
9d4bf22d 4988{
070a05af
CB		 4989 int len;
4990 int fulllen = 0;
4991 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4992
4993 if (!retv)
4994 inlen = 0;
4995 else
4996 memset(retv, 0, inlen);
4997
9d4bf22d
CB		 4998 if (!netdev)
4999 return -1;
5000
5001 if (netdev->downscript)
5002 strprint(retv, inlen, "%s", netdev->downscript);
5003
5004 return fulllen;
5005}
5006
f9373e40
CB		 5007static int get_config_net_hwaddr(const char *key, char *retv, int inlen,
5008 struct lxc_conf *c, void *data)
9d4bf22d 5009{
070a05af
CB		 5010 int len;
5011 int fulllen = 0;
5012 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5013
5014 if (!retv)
5015 inlen = 0;
5016 else
5017 memset(retv, 0, inlen);
5018
9d4bf22d
CB		 5019 if (!netdev)
5020 return -1;
5021
5022 if (netdev->hwaddr)
5023 strprint(retv, inlen, "%s", netdev->hwaddr);
5024
5025 return fulllen;
5026}
5027
f9373e40
CB		 5028static int get_config_net_mtu(const char *key, char *retv, int inlen,
5029 struct lxc_conf *c, void *data)
9d4bf22d 5030{
070a05af
CB		 5031 int len;
5032 int fulllen = 0;
5033 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5034
5035 if (!retv)
5036 inlen = 0;
5037 else
5038 memset(retv, 0, inlen);
5039
9d4bf22d
CB		 5040 if (!netdev)
5041 return -1;
5042
5043 if (netdev->mtu)
5044 strprint(retv, inlen, "%s", netdev->mtu);
5045
5046 return fulllen;
5047}
5048
f9373e40
CB		 5049static int get_config_net_vlan_id(const char *key, char *retv, int inlen,
5050 struct lxc_conf *c, void *data)
9d4bf22d 5051{
070a05af
CB		 5052 int len;
5053 int fulllen = 0;
5054 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5055
5056 if (!retv)
5057 inlen = 0;
5058 else
5059 memset(retv, 0, inlen);
5060
9d4bf22d
CB		 5061 if (!netdev)
5062 return -1;
5063
5064 if (netdev->type != LXC_NET_VLAN)
5065 return 0;
5066
5067 strprint(retv, inlen, "%d", netdev->priv.vlan_attr.vid);
5068
5069 return fulllen;
5070}
5071
f9373e40
CB		 5072static int get_config_net_ipv4_gateway(const char *key, char *retv, int inlen,
5073 struct lxc_conf *c, void *data)
9d4bf22d 5074{
070a05af 5075 int len;
9d4bf22d 5076 char buf[INET_ADDRSTRLEN];
070a05af
CB		 5077 int fulllen = 0;
5078 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5079
5080 if (!retv)
5081 inlen = 0;
5082 else
5083 memset(retv, 0, inlen);
5084
9d4bf22d
CB		 5085 if (!netdev)
5086 return -1;
5087
5088 if (netdev->ipv4_gateway_auto) {
5089 strprint(retv, inlen, "auto");
5090 } else if (netdev->ipv4_gateway) {
5091 inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf));
5092 strprint(retv, inlen, "%s", buf);
5093 }
5094
5095 return fulllen;
5096}
5097
9ff60df2
CB		 5098static int get_config_net_ipv4_address(const char *key, char *retv, int inlen,
5099 struct lxc_conf *c, void *data)
9d4bf22d 5100{
070a05af 5101 int len;
9d4bf22d
CB		 5102 size_t listlen;
5103 char buf[INET_ADDRSTRLEN];
9d4bf22d 5104 struct lxc_list *it;
070a05af
CB		 5105 int fulllen = 0;
5106 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5107
5108 if (!retv)
5109 inlen = 0;
5110 else
5111 memset(retv, 0, inlen);
5112
9d4bf22d
CB		 5113 if (!netdev)
5114 return -1;
5115
5116 listlen = lxc_list_len(&netdev->ipv4);
47903908 5117
9d4bf22d
CB		 5118 lxc_list_for_each(it, &netdev->ipv4) {
5119 struct lxc_inetdev *i = it->elem;
5120 inet_ntop(AF_INET, &i->addr, buf, sizeof(buf));
6fc7d8b6 5121 strprint(retv, inlen, "%s/%u%s", buf, i->prefix,
9d4bf22d
CB		 5122 (listlen-- > 1) ? "\n" : "");
5123 }
5124
5125 return fulllen;
5126}
5127
f9373e40
CB		 5128static int get_config_net_ipv6_gateway(const char *key, char *retv, int inlen,
5129 struct lxc_conf *c, void *data)
9d4bf22d 5130{
070a05af 5131 int len;
9d4bf22d 5132 char buf[INET6_ADDRSTRLEN];
070a05af
CB		 5133 int fulllen = 0;
5134 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5135
5136 if (!retv)
5137 inlen = 0;
5138 else
5139 memset(retv, 0, inlen);
5140
9d4bf22d
CB		 5141 if (!netdev)
5142 return -1;
5143
5144 if (netdev->ipv6_gateway_auto) {
5145 strprint(retv, inlen, "auto");
5146 } else if (netdev->ipv6_gateway) {
5147 inet_ntop(AF_INET6, netdev->ipv6_gateway, buf, sizeof(buf));
5148 strprint(retv, inlen, "%s", buf);
5149 }
5150
5151 return fulllen;
5152}
5153
2e44ae28
CB		 5154static int get_config_net_ipv6_address(const char *key, char *retv, int inlen,
5155 struct lxc_conf *c, void *data)
9d4bf22d 5156{
070a05af 5157 int len;
9d4bf22d
CB		 5158 size_t listlen;
5159 char buf[INET6_ADDRSTRLEN];
9d4bf22d 5160 struct lxc_list *it;
070a05af
CB		 5161 int fulllen = 0;
5162 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5163
5164 if (!retv)
5165 inlen = 0;
5166 else
5167 memset(retv, 0, inlen);
5168
9d4bf22d
CB		 5169 if (!netdev)
5170 return -1;
5171
5172 listlen = lxc_list_len(&netdev->ipv6);
47903908 5173
9d4bf22d
CB		 5174 lxc_list_for_each(it, &netdev->ipv6) {
5175 struct lxc_inet6dev *i = it->elem;
5176 inet_ntop(AF_INET6, &i->addr, buf, sizeof(buf));
6fc7d8b6 5177 strprint(retv, inlen, "%s/%u%s", buf, i->prefix,
9d4bf22d
CB		 5178 (listlen-- > 1) ? "\n" : "");
5179 }
5180
5181 return fulllen;
5182}
cfc67626
CB		 5183
5184int lxc_list_config_items(char *retv, int inlen)
5185{
5186 size_t i;
5187 int len;
5188 int fulllen = 0;
5189
5190 if (!retv)
5191 inlen = 0;
5192 else
5193 memset(retv, 0, inlen);
5194
33eb2ec1
CB		 5195 for (i = 0; i < config_jump_table_size; i++) {
5196 char *s = config_jump_table[i].name;
300df83e 5197
cfc67626
CB		 5198 if (s[strlen(s) - 1] == '.')
5199 continue;
300df83e 5200
cfc67626
CB		 5201 strprint(retv, inlen, "%s\n", s);
5202 }
5203
5204 return fulllen;
5205}
a5448c15 5206
fe9b7349
CB		 5207int lxc_list_subkeys(struct lxc_conf *conf, const char *key, char *retv,
5208 int inlen)
5209{
5210 int len;
5211 int fulllen = 0;
5212
5213 if (!retv)
5214 inlen = 0;
5215 else
5216 memset(retv, 0, inlen);
5217
5218 if (!strcmp(key, "lxc.apparmor")) {
5219 strprint(retv, inlen, "allow_incomplete\n");
1800f924 5220 strprint(retv, inlen, "allow_nesting\n");
fe9b7349 5221 strprint(retv, inlen, "profile\n");
1800f924 5222 strprint(retv, inlen, "raw\n");
dae8c253
CB		 5223 } else if (!strcmp(key, "lxc.cgroup")) {
5224 strprint(retv, inlen, "dir\n");
fe9b7349
CB		 5225 } else if (!strcmp(key, "lxc.selinux")) {
5226 strprint(retv, inlen, "context\n");
5227 } else if (!strcmp(key, "lxc.mount")) {
5228 strprint(retv, inlen, "auto\n");
5229 strprint(retv, inlen, "entry\n");
5230 strprint(retv, inlen, "fstab\n");
5231 } else if (!strcmp(key, "lxc.rootfs")) {
5232 strprint(retv, inlen, "mount\n");
5233 strprint(retv, inlen, "options\n");
5234 strprint(retv, inlen, "path\n");
5235 } else if (!strcmp(key, "lxc.uts")) {
5236 strprint(retv, inlen, "name\n");
5237 } else if (!strcmp(key, "lxc.hook")) {
5238 strprint(retv, inlen, "autodev\n");
5239 strprint(retv, inlen, "clone\n");
5240 strprint(retv, inlen, "destroy\n");
5241 strprint(retv, inlen, "mount\n");
5242 strprint(retv, inlen, "post-stop\n");
5243 strprint(retv, inlen, "pre-mount\n");
5244 strprint(retv, inlen, "pre-start\n");
08dd2805 5245 strprint(retv, inlen, "start-host\n");
fe9b7349
CB		 5246 strprint(retv, inlen, "start\n");
5247 strprint(retv, inlen, "stop\n");
5248 } else if (!strcmp(key, "lxc.cap")) {
5249 strprint(retv, inlen, "drop\n");
5250 strprint(retv, inlen, "keep\n");
5251 } else if (!strcmp(key, "lxc.console")) {
5252 strprint(retv, inlen, "logfile\n");
5253 strprint(retv, inlen, "path\n");
5254 } else if (!strcmp(key, "lxc.seccomp")) {
5255 strprint(retv, inlen, "profile\n");
5256 } else if (!strcmp(key, "lxc.signal")) {
5257 strprint(retv, inlen, "halt\n");
5258 strprint(retv, inlen, "reboot\n");
5259 strprint(retv, inlen, "stop\n");
5260 } else if (!strcmp(key, "lxc.start")) {
5261 strprint(retv, inlen, "auto\n");
5262 strprint(retv, inlen, "delay\n");
5263 strprint(retv, inlen, "order\n");
5264 } else if (!strcmp(key, "lxc.monitor")) {
5265 strprint(retv, inlen, "unshare\n");
5266 } else {
5267 fulllen = -1;
5268 }
5269
5270 return fulllen;
5271}
5272
a5448c15
CB		 5273int lxc_list_net(struct lxc_conf *c, const char *key, char *retv, int inlen)
5274{
5275 int len;
5276 const char *idxstring;
a5448c15
CB		 5277 struct lxc_netdev *netdev;
5278 int fulllen = 0;
5279 ssize_t idx = -1;
a5448c15
CB		 5280
5281 idxstring = key + 8;
5282 if (!isdigit(*idxstring))
5283 return -1;
5284
7451daf8
CB		 5285 (void)get_network_config_ops(key, c, &idx, NULL);
5286 if (idx < 0)
a5448c15
CB		 5287 return -1;
5288
5289 netdev = lxc_get_netdev_by_idx(c, (unsigned int)idx, false);
a5448c15
CB		 5290 if (!netdev)
5291 return -1;
5292
5293 if (!retv)
5294 inlen = 0;
5295 else
5296 memset(retv, 0, inlen);
5297
5298 strprint(retv, inlen, "type\n");
5299 strprint(retv, inlen, "script.up\n");
5300 strprint(retv, inlen, "script.down\n");
47903908 5301
a5448c15
CB		 5302 if (netdev->type != LXC_NET_EMPTY) {
5303 strprint(retv, inlen, "flags\n");
5304 strprint(retv, inlen, "link\n");
5305 strprint(retv, inlen, "name\n");
5306 strprint(retv, inlen, "hwaddr\n");
5307 strprint(retv, inlen, "mtu\n");
5308 strprint(retv, inlen, "ipv6.address\n");
5309 strprint(retv, inlen, "ipv6.gateway\n");
5310 strprint(retv, inlen, "ipv4.address\n");
5311 strprint(retv, inlen, "ipv4.gateway\n");
5312 }
5313
5314 switch (netdev->type) {
5315 case LXC_NET_VETH:
5316 strprint(retv, inlen, "veth.pair\n");
5317 break;
5318 case LXC_NET_MACVLAN:
5319 strprint(retv, inlen, "macvlan.mode\n");
5320 break;
5321 case LXC_NET_VLAN:
5322 strprint(retv, inlen, "vlan.id\n");
5323 break;
5324 case LXC_NET_PHYS:
5325 break;
5326 }
5327
5328 return fulllen;
5329}
LXC mirror