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confile: remove debug printf()s
[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) {
6437f1c1
CB		 1791 char *container_path;
1792 char *host_path;
594426ca 1793
6437f1c1
CB		 1794 host_path = token + STRLITERALLEN("shmounts:");
1795 if (*host_path == '\0') {
fd14fdb8 1796 SYSERROR("Failed to copy shmounts host path");
62dd965e 1797 goto on_error;
fd14fdb8
LT		 1798 }
1799
6437f1c1
CB		 1800 container_path = strchr(host_path, ':');
1801 if (!container_path || *(container_path + 1) == '\0')
1802 container_path = "/dev/.lxc-mounts";
1803 else
1804 *container_path++ = '\0';
1805
6437f1c1 1806 lxc_conf->shmount.path_host = strdup(host_path);
594426ca
CB		 1807 if (!lxc_conf->shmount.path_host) {
1808 SYSERROR("Failed to copy shmounts host path");
62dd965e 1809 goto on_error;
0d190408 1810 }
fd14fdb8 1811
6437f1c1 1812 lxc_conf->shmount.path_cont = strdup(container_path);
fd14fdb8
LT		 1813 if(!lxc_conf->shmount.path_cont) {
1814 SYSERROR("Failed to copy shmounts container path");
62dd965e 1815 goto on_error;
fd14fdb8 1816 }
0d190408 1817 }
d028235d 1818 }
368bbc02 1819
62dd965e
CB		 1820 ret = 0;
1821
1822on_error:
368bbc02 1823 free(autos);
62dd965e 1824
368bbc02
CS		 1825 return ret;
1826}
1827
713046e3 1828static int set_config_mount(const char *key, const char *value,
c7e27aaf 1829 struct lxc_conf *lxc_conf, void *data)
e7938e9e 1830{
e7938e9e
MN		 1831 char *mntelem;
1832 struct lxc_list *mntlist;
1833
663e9916 1834 if (lxc_config_value_empty(value))
d9192f5d 1835 return lxc_clear_mount_entries(lxc_conf);
e7938e9e
MN		 1836
1837 mntlist = malloc(sizeof(*mntlist));
1838 if (!mntlist)
1839 return -1;
1840
1841 mntelem = strdup(value);
00b6be44
SH		 1842 if (!mntelem) {
1843 free(mntlist);
bf83c5b9 1844 return -1;
00b6be44 1845 }
e7938e9e
MN		 1846 mntlist->elem = mntelem;
1847
1848 lxc_list_add_tail(&lxc_conf->mount_list, mntlist);
1849
1850 return 0;
1851}
1852
0d190408
LT		 1853int add_elem_to_mount_list(const char *value, struct lxc_conf *lxc_conf) {
1854 return set_config_mount(NULL, value, lxc_conf, NULL);
1855}
1856
713046e3 1857static int set_config_cap_keep(const char *key, const char *value,
c7e27aaf 1858 struct lxc_conf *lxc_conf, void *data)
1fb86a7c 1859{
62dd965e 1860 char *keepcaps, *token;
1fb86a7c
SH		 1861 struct lxc_list *keeplist;
1862 int ret = -1;
1863
663e9916 1864 if (lxc_config_value_empty(value))
7d0eb87e 1865 return lxc_clear_config_keepcaps(lxc_conf);
1fb86a7c
SH		 1866
1867 keepcaps = strdup(value);
25a908b8 1868 if (!keepcaps)
1fb86a7c 1869 return -1;
1fb86a7c 1870
504a2217
CB		 1871 /* In case several capability keep is specified in a single line
1872 * split these caps in a single element for the list.
1873 */
62dd965e 1874 lxc_iterate_parts(token, keepcaps, " \t") {
7035407c
DE		 1875 if (!strcmp(token, "none"))
1876 lxc_clear_config_keepcaps(lxc_conf);
1877
1fb86a7c 1878 keeplist = malloc(sizeof(*keeplist));
25a908b8 1879 if (!keeplist)
62dd965e 1880 goto on_error;
1fb86a7c
SH		 1881
1882 keeplist->elem = strdup(token);
1883 if (!keeplist->elem) {
1fb86a7c 1884 free(keeplist);
62dd965e 1885 goto on_error;
1fb86a7c
SH		 1886 }
1887
1888 lxc_list_add_tail(&lxc_conf->keepcaps, keeplist);
d028235d 1889 }
1fb86a7c 1890
62dd965e
CB		 1891 ret = 0;
1892
1893on_error:
1fb86a7c
SH		 1894 free(keepcaps);
1895
1896 return ret;
1897}
1898
713046e3 1899static int set_config_cap_drop(const char *key, const char *value,
c7e27aaf 1900 struct lxc_conf *lxc_conf, void *data)
81810dd1 1901{
62dd965e 1902 char *dropcaps, *token;
81810dd1
DL		 1903 struct lxc_list *droplist;
1904 int ret = -1;
1905
663e9916 1906 if (lxc_config_value_empty(value))
7d0eb87e 1907 return lxc_clear_config_caps(lxc_conf);
81810dd1
DL		 1908
1909 dropcaps = strdup(value);
25a908b8 1910 if (!dropcaps)
81810dd1 1911 return -1;
81810dd1 1912
504a2217
CB		 1913 /* In case several capability drop is specified in a single line
1914 * split these caps in a single element for the list.
1915 */
62dd965e 1916 lxc_iterate_parts(token, dropcaps, " \t") {
81810dd1 1917 droplist = malloc(sizeof(*droplist));
25a908b8 1918 if (!droplist)
62dd965e 1919 goto on_error;
81810dd1
DL		 1920
1921 droplist->elem = strdup(token);
1922 if (!droplist->elem) {
81810dd1 1923 free(droplist);
62dd965e 1924 goto on_error;
81810dd1
DL		 1925 }
1926
1927 lxc_list_add_tail(&lxc_conf->caps, droplist);
d028235d 1928 }
81810dd1 1929
62dd965e
CB		 1930 ret = 0;
1931
1932on_error:
81810dd1
DL		 1933 free(dropcaps);
1934
1935 return ret;
1936}
1937
3aed4934
CB		 1938static int set_config_console_path(const char *key, const char *value,
1939 struct lxc_conf *lxc_conf, void *data)
28a4b0e5 1940{
713046e3 1941 return set_config_path_item(&lxc_conf->console.path, value);
28a4b0e5
DL		 1942}
1943
d91adfa6
CB		 1944static int set_config_console_rotate(const char *key, const char *value,
1945 struct lxc_conf *lxc_conf, void *data)
1946{
1947 if (lxc_config_value_empty(value)) {
1948 lxc_conf->console.log_rotate = 0;
1949 return 0;
1950 }
1951
1952 if (lxc_safe_uint(value, &lxc_conf->console.log_rotate) < 0)
1953 return -1;
1954
966b9ecd
CB		 1955 if (lxc_conf->console.log_rotate > 1) {
1956 ERROR("The \"lxc.console.rotate\" config key can only be set "
1957 "to 0 or 1");
d91adfa6 1958 return -1;
966b9ecd 1959 }
d91adfa6
CB		 1960
1961 return 0;
1962}
1963
713046e3 1964static int set_config_console_logfile(const char *key, const char *value,
c7e27aaf 1965 struct lxc_conf *lxc_conf, void *data)
96f15ca1 1966{
713046e3 1967 return set_config_path_item(&lxc_conf->console.log_path, value);
96f15ca1
SH		 1968}
1969
28f3b1cd
CB		 1970static int set_config_console_buffer_size(const char *key, const char *value,
1971 struct lxc_conf *lxc_conf, void *data)
a04220de
CB		 1972{
1973 int ret;
1974 int64_t size;
28f3b1cd 1975 uint64_t buffer_size, pgsz;
a04220de
CB		 1976
1977 if (lxc_config_value_empty(value)) {
28f3b1cd 1978 lxc_conf->console.buffer_size = 0;
a04220de
CB		 1979 return 0;
1980 }
1981
1982 /* If the user specified "auto" the default log size is 2^17 = 128 Kib */
1983 if (!strcmp(value, "auto")) {
28f3b1cd 1984 lxc_conf->console.buffer_size = 1 << 17;
a04220de
CB		 1985 return 0;
1986 }
1987
1988 ret = parse_byte_size_string(value, &size);
1989 if (ret < 0)
1990 return -1;
1991
1992 if (size < 0)
1993 return -EINVAL;
1994
1995 /* must be at least a page size */
1996 pgsz = lxc_getpagesize();
1997 if ((uint64_t)size < pgsz) {
1998 NOTICE("Requested ringbuffer size for the console is %" PRId64
1999 " but must be at least %" PRId64
2000 " bytes. Setting ringbuffer size to %" PRId64 " bytes",
2001 size, pgsz, pgsz);
2002 size = pgsz;
2003 }
2004
28f3b1cd
CB		 2005 buffer_size = lxc_find_next_power2((uint64_t)size);
2006 if (buffer_size == 0)
a04220de
CB		 2007 return -EINVAL;
2008
28f3b1cd 2009 if (buffer_size != size)
a04220de 2010 NOTICE("Passed size was not a power of 2. Rounding log size to "
28f3b1cd 2011 "next power of two: %" PRIu64 " bytes", buffer_size);
a04220de 2012
28f3b1cd 2013 lxc_conf->console.buffer_size = buffer_size;
47903908 2014
a04220de
CB		 2015 return 0;
2016}
2017
861813e5
CB		 2018static int set_config_console_size(const char *key, const char *value,
2019 struct lxc_conf *lxc_conf, void *data)
2020{
2021 int ret;
2022 int64_t size;
2023 uint64_t log_size, pgsz;
2024
2025 if (lxc_config_value_empty(value)) {
2026 lxc_conf->console.log_size = 0;
2027 return 0;
2028 }
2029
2030 /* If the user specified "auto" the default log size is 2^17 = 128 Kib */
2031 if (!strcmp(value, "auto")) {
2032 lxc_conf->console.log_size = 1 << 17;
2033 return 0;
2034 }
2035
2036 ret = parse_byte_size_string(value, &size);
2037 if (ret < 0)
2038 return -1;
2039
2040 if (size < 0)
2041 return -EINVAL;
2042
2043 /* must be at least a page size */
2044 pgsz = lxc_getpagesize();
2045 if ((uint64_t)size < pgsz) {
2046 NOTICE("Requested ringbuffer size for the console is %" PRId64
2047 " but must be at least %" PRId64
2048 " bytes. Setting ringbuffer size to %" PRId64 " bytes",
2049 size, pgsz, pgsz);
2050 size = pgsz;
2051 }
2052
2053 log_size = lxc_find_next_power2((uint64_t)size);
2054 if (log_size == 0)
2055 return -EINVAL;
2056
2057 if (log_size != size)
2058 NOTICE("Passed size was not a power of 2. Rounding log size to "
2059 "next power of two: %" PRIu64 " bytes", log_size);
2060
2061 lxc_conf->console.log_size = log_size;
47903908 2062
861813e5
CB		 2063 return 0;
2064}
2065
6b0d5538 2066int append_unexp_config_line(const char *line, struct lxc_conf *conf)
f979ac15 2067{
62a821f1
CB		 2068 size_t linelen;
2069 size_t len = conf->unexpanded_len;
f979ac15 2070
e6744e9b
SH		 2071 update_hwaddr(line);
2072
62a821f1 2073 linelen = strlen(line);
6b0d5538 2074 while (conf->unexpanded_alloced <= len + linelen + 2) {
504a2217
CB		 2075 char *tmp = realloc(conf->unexpanded_config,
2076 conf->unexpanded_alloced + 1024);
6b0d5538
SH		 2077 if (!tmp)
2078 return -1;
504a2217 2079
6b0d5538
SH		 2080 if (!conf->unexpanded_config)
2081 *tmp = '\0';
62a821f1 2082
6b0d5538
SH		 2083 conf->unexpanded_config = tmp;
2084 conf->unexpanded_alloced += 1024;
2085 }
efed99a4 2086
62a821f1 2087 memcpy(conf->unexpanded_config + conf->unexpanded_len, line, linelen);
6b0d5538 2088 conf->unexpanded_len += linelen;
62a821f1
CB		 2089 if (line[linelen - 1] != '\n')
2090 conf->unexpanded_config[conf->unexpanded_len++] = '\n';
2091 conf->unexpanded_config[conf->unexpanded_len] = '\0';
25a908b8 2092
f979ac15
SH		 2093 return 0;
2094}
2095
e1daebd9
SH		 2096static int do_includedir(const char *dirp, struct lxc_conf *lxc_conf)
2097{
74f96976 2098 struct dirent *direntp;
e1daebd9 2099 DIR *dir;
18740311 2100 char path[PATH_MAX];
504a2217
CB		 2101 int len;
2102 int ret = -1;
e1daebd9
SH		 2103
2104 dir = opendir(dirp);
25a908b8 2105 if (!dir)
e1daebd9 2106 return -1;
e1daebd9 2107
74f96976 2108 while ((direntp = readdir(dir))) {
e1daebd9 2109 const char *fnam;
e1daebd9
SH		 2110
2111 fnam = direntp->d_name;
2112 if (!strcmp(fnam, "."))
2113 continue;
2114
2115 if (!strcmp(fnam, ".."))
2116 continue;
2117
2118 len = strlen(fnam);
504a2217 2119 if (len < 6 || strncmp(fnam + len - 5, ".conf", 5) != 0)
e1daebd9 2120 continue;
25a908b8 2121
18740311
CB		 2122 len = snprintf(path, PATH_MAX, "%s/%s", dirp, fnam);
2123 if (len < 0 || len >= PATH_MAX) {
e1daebd9
SH		 2124 ret = -1;
2125 goto out;
2126 }
2127
2128 ret = lxc_config_read(path, lxc_conf, true);
2129 if (ret < 0)
2130 goto out;
2131 }
2132 ret = 0;
2133
2134out:
25a908b8 2135 closedir(dir);
e1daebd9
SH		 2136
2137 return ret;
2138}
2139
973082f5 2140static int set_config_includefiles(const char *key, const char *value,
c7e27aaf 2141 struct lxc_conf *lxc_conf, void *data)
09ad6246 2142{
663e9916 2143 if (lxc_config_value_empty(value)) {
26471403 2144 clr_config_includefiles(key, lxc_conf, NULL);
616422f1 2145 return 0;
355c5701 2146 }
616422f1 2147
e1daebd9
SH		 2148 if (is_dir(value))
2149 return do_includedir(value, lxc_conf);
2150
6b0d5538 2151 return lxc_config_read(value, lxc_conf, true);
09ad6246
SH		 2152}
2153
7a96a068
CB		 2154static int set_config_rootfs_path(const char *key, const char *value,
2155 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 2156{
693dbdb9
CB		 2157 int ret;
2158 char *dup, *tmp;
2159 const char *container_path;
2160
2161 if (lxc_config_value_empty(value)) {
2162 free(lxc_conf->rootfs.path);
2163 lxc_conf->rootfs.path = NULL;
2164 return 0;
2165 }
2166
2167 dup = strdup(value);
2168 if (!dup)
2169 return -1;
2170
2171 /* Split <storage type>:<container path> into <storage type> and
2172 * <container path>. Set "rootfs.bdev_type" to <storage type> and
2173 * "rootfs.path" to <container path>.
2174 */
2175 tmp = strchr(dup, ':');
2176 if (tmp) {
2177 *tmp = '\0';
47903908 2178
693dbdb9
CB		 2179 ret = set_config_path_item(&lxc_conf->rootfs.bdev_type, dup);
2180 if (ret < 0) {
2181 free(dup);
2182 return -1;
2183 }
47903908 2184
693dbdb9
CB		 2185 tmp++;
2186 container_path = tmp;
2187 } else {
2188 container_path = value;
2189 }
2190
2191 ret = set_config_path_item(&lxc_conf->rootfs.path, container_path);
2192 free(dup);
47903908 2193
693dbdb9 2194 return ret;
c2cc9f0a 2195}
2196
6e54330c
CB		 2197static int set_config_rootfs_managed(const char *key, const char *value,
2198 struct lxc_conf *lxc_conf, void *data)
2199{
2200 unsigned int val = 0;
2201
2202 if (lxc_config_value_empty(value)) {
2203 lxc_conf->rootfs.managed = true;
2204 return 0;
2205 }
2206
2207 if (lxc_safe_uint(value, &val) < 0)
2208 return -EINVAL;
2209
2210 switch (val) {
2211 case 0:
2212 lxc_conf->rootfs.managed = false;
2213 return 0;
2214 case 1:
2215 lxc_conf->rootfs.managed = true;
2216 return 0;
2217 }
2218
2219 return -EINVAL;
2220}
2221
713046e3 2222static int set_config_rootfs_mount(const char *key, const char *value,
c7e27aaf 2223 struct lxc_conf *lxc_conf, void *data)
23b7ea69 2224{
713046e3 2225 return set_config_path_item(&lxc_conf->rootfs.mount, value);
23b7ea69
DL		 2226}
2227
713046e3 2228static int set_config_rootfs_options(const char *key, const char *value,
c7e27aaf 2229 struct lxc_conf *lxc_conf, void *data)
a17b1e65 2230{
3437f95c
CB		 2231 int ret;
2232 unsigned long mflags = 0, pflags = 0;
2233 char *mdata = NULL, *opts = NULL;
2234 struct lxc_rootfs *rootfs = &lxc_conf->rootfs;
2235
2236 ret = parse_mntopts(value, &mflags, &mdata);
2237 if (ret < 0)
2238 return -EINVAL;
2239
2240 ret = parse_propagationopts(value, &pflags);
2241 if (ret < 0) {
2242 free(mdata);
2243 return -EINVAL;
2244 }
2245
2246 ret = set_config_string_item(&opts, value);
2247 if (ret < 0) {
2248 free(mdata);
2249 return -ENOMEM;
2250 }
2251
2252 rootfs->mountflags = mflags | pflags;
2253 rootfs->options = opts;
2254 rootfs->data = mdata;
2255
2256 return 0;
a17b1e65
SG		 2257}
2258
b67771bc 2259static int set_config_uts_name(const char *key, const char *value,
c7e27aaf 2260 struct lxc_conf *lxc_conf, void *data)
c2cc9f0a 2261{
2262 struct utsname *utsname;
2263
663e9916 2264 if (lxc_config_value_empty(value)) {
b67771bc 2265 clr_config_uts_name(key, lxc_conf, NULL);
1939e73d 2266 return 0;
00cd8039 2267 }
1939e73d 2268
c2cc9f0a 2269 utsname = malloc(sizeof(*utsname));
25a908b8 2270 if (!utsname)
c2cc9f0a 2271 return -1;
c2cc9f0a 2272
2273 if (strlen(value) >= sizeof(utsname->nodename)) {
b6f24d54 2274 free(utsname);
c2cc9f0a 2275 return -1;
2276 }
2277
43f984ea 2278 (void)strlcpy(utsname->nodename, value, sizeof(utsname->nodename));
f10fad2f 2279 free(lxc_conf->utsname);
c2cc9f0a 2280 lxc_conf->utsname = utsname;
2281
2282 return 0;
2283}
2284
1d8d3676
CB		 2285static int set_config_namespace_clone(const char *key, const char *value,
2286 struct lxc_conf *lxc_conf, void *data)
2287{
62dd965e 2288 char *ns, *token;
1d8d3676 2289 int cloneflag = 0;
1d8d3676
CB		 2290
2291 if (lxc_config_value_empty(value))
2292 return clr_config_namespace_clone(key, lxc_conf, data);
2293
8bc8c715 2294 if (lxc_conf->ns_keep != 0) {
6d1400b5 2295 errno = EINVAL;
2296 SYSERROR("Cannot set both \"lxc.namespace.clone\" and "
2297 "\"lxc.namespace.keep\"");
8bc8c715
CB		 2298 return -EINVAL;
2299 }
2300
1d8d3676
CB		 2301 ns = strdup(value);
2302 if (!ns)
2303 return -1;
1d8d3676 2304
62dd965e 2305 lxc_iterate_parts(token, ns, " \t") {
1d8d3676
CB		 2306 token += lxc_char_left_gc(token, strlen(token));
2307 token[lxc_char_right_gc(token, strlen(token))] = '\0';
2308 cloneflag = lxc_namespace_2_cloneflag(token);
2309 if (cloneflag < 0) {
2310 free(ns);
2311 return -EINVAL;
2312 }
2313 lxc_conf->ns_clone |= cloneflag;
2314 }
2315 free(ns);
2316
2317 return 0;
2318}
2319
abeb5bba
CB		 2320static int set_config_namespace_keep(const char *key, const char *value,
2321 struct lxc_conf *lxc_conf, void *data)
2322{
62dd965e 2323 char *ns, *token;
abeb5bba 2324 int cloneflag = 0;
abeb5bba
CB		 2325
2326 if (lxc_config_value_empty(value))
2327 return clr_config_namespace_keep(key, lxc_conf, data);
2328
8bc8c715 2329 if (lxc_conf->ns_clone != 0) {
6d1400b5 2330 errno = EINVAL;
2331 SYSERROR("Cannot set both \"lxc.namespace.clone\" and "
2332 "\"lxc.namespace.keep\"");
8bc8c715
CB		 2333 return -EINVAL;
2334 }
2335
abeb5bba
CB		 2336 ns = strdup(value);
2337 if (!ns)
2338 return -1;
abeb5bba 2339
62dd965e 2340 lxc_iterate_parts(token, ns, " \t") {
abeb5bba
CB		 2341 token += lxc_char_left_gc(token, strlen(token));
2342 token[lxc_char_right_gc(token, strlen(token))] = '\0';
2343 cloneflag = lxc_namespace_2_cloneflag(token);
2344 if (cloneflag < 0) {
2345 free(ns);
2346 return -EINVAL;
2347 }
2348 lxc_conf->ns_keep |= cloneflag;
2349 }
2350 free(ns);
2351
2352 return 0;
2353}
2354
b074bbf1
CB		 2355static int set_config_namespace_share(const char *key, const char *value,
2356 struct lxc_conf *lxc_conf, void *data)
28d9e29e
CB		 2357{
2358 int ns_idx;
2359 const char *namespace;
2360
2361 if (lxc_config_value_empty(value))
b074bbf1 2362 return clr_config_namespace_share(key, lxc_conf, data);
28d9e29e 2363
6333c915 2364 namespace = key + STRLITERALLEN("lxc.namespace.share.");
28d9e29e
CB		 2365 ns_idx = lxc_namespace_2_ns_idx(namespace);
2366 if (ns_idx < 0)
2367 return ns_idx;
2368
b074bbf1 2369 return set_config_string_item(&lxc_conf->ns_share[ns_idx], value);
28d9e29e
CB		 2370}
2371
6b0d5538
SH		 2372struct parse_line_conf {
2373 struct lxc_conf *conf;
2374 bool from_include;
2375};
4184c3e1 2376
7a7ff0c6 2377static int parse_line(char *buffer, void *data)
c2cc9f0a 2378{
504a2217 2379 char *dot, *key, *line, *linep, *value;
3b13691d
CB		 2380 bool empty_line;
2381 struct lxc_config_t *config;
504a2217 2382 int ret = 0;
3b13691d
CB		 2383 char *dup = buffer;
2384 struct parse_line_conf *plc = data;
c2cc9f0a 2385
3b13691d
CB		 2386 /* If there are newlines in the config file we should keep them. */
2387 empty_line = lxc_is_line_empty(dup);
2388 if (empty_line)
2389 dup = "\n";
c2cc9f0a 2390
25a908b8
CB		 2391 /* We have to dup the buffer otherwise, at the re-exec for reboot we
2392 * modified the original string on the stack by replacing '=' by '\0'
2393 * below.
91480a0f 2394 */
3b13691d 2395 linep = line = strdup(dup);
25a908b8 2396 if (!line)
81192358 2397 return -1;
91480a0f 2398
3b13691d
CB		 2399 if (!plc->from_include) {
2400 ret = append_unexp_config_line(line, plc->conf);
2401 if (ret < 0)
2402 goto on_error;
2403 }
2404
2405 if (empty_line)
327500d4 2406 goto on_error;
6b0d5538 2407
b2718c72 2408 line += lxc_char_left_gc(line, strlen(line));
476d4cf1 2409
4184c3e1
SH		 2410 /* ignore comments */
2411 if (line[0] == '#')
3b13691d 2412 goto on_error;
476d4cf1 2413
6b0d5538
SH		 2414 /* martian option - don't add it to the config itself */
2415 if (strncmp(line, "lxc.", 4))
3b13691d 2416 goto on_error;
4184c3e1 2417
476d4cf1 2418 ret = -1;
c2cc9f0a 2419
3b13691d 2420 dot = strchr(line, '=');
c2cc9f0a 2421 if (!dot) {
3b13691d
CB		 2422 ERROR("Invalid configuration line: %s", line);
2423 goto on_error;
c2cc9f0a 2424 }
a871ff6b 2425
c2cc9f0a 2426 *dot = '\0';
2427 value = dot + 1;
2428
b2718c72 2429 key = line;
2430 key[lxc_char_right_gc(key, strlen(key))] = '\0';
c2cc9f0a 2431
b2718c72 2432 value += lxc_char_left_gc(value, strlen(value));
2433 value[lxc_char_right_gc(value, strlen(value))] = '\0';
c2cc9f0a 2434
bd878dee 2435 if (*value == '\'' || *value == '\"') {
25a908b8
CB		 2436 size_t len;
2437
2438 len = strlen(value);
504a2217
CB		 2439 if (len > 1 && value[len - 1] == *value) {
2440 value[len - 1] = '\0';
bd878dee
SB		 2441 value++;
2442 }
2443 }
2444
300df83e 2445 config = lxc_get_config(key);
c2cc9f0a 2446 if (!config) {
25a908b8 2447 ERROR("Unknown configuration key \"%s\"", key);
3b13691d 2448 goto on_error;
c2cc9f0a 2449 }
2450
bbc079cf 2451 ret = config->set(key, value, plc->conf, NULL);
91480a0f 2452
3b13691d 2453on_error:
81192358 2454 free(linep);
47903908 2455
91480a0f 2456 return ret;
c2cc9f0a 2457}
2458
d899f11b 2459static struct new_config_item *parse_new_conf_line(char *buffer)
2460{
2461 char *dot, *key, *line, *linep, *value;
2462 int ret = 0;
2463 char *dup = buffer;
2464 struct new_config_item *new = NULL;
2465
2466 linep = line = strdup(dup);
2467 if (!line)
2468 return NULL;
2469
2470 line += lxc_char_left_gc(line, strlen(line));
2471
2472 /* martian option - don't add it to the config itself */
85d49873 2473 if (strncmp(line, "lxc.", 4))
d899f11b 2474 goto on_error;
2475
2476 ret = -1;
2477 dot = strchr(line, '=');
2478 if (!dot) {
2479 ERROR("Invalid configuration item: %s", line);
2480 goto on_error;
2481 }
2482
2483 *dot = '\0';
2484 value = dot + 1;
2485
2486 key = line;
2487 key[lxc_char_right_gc(key, strlen(key))] = '\0';
2488
2489 value += lxc_char_left_gc(value, strlen(value));
2490 value[lxc_char_right_gc(value, strlen(value))] = '\0';
2491
2492 if (*value == '\'' || *value == '\"') {
2493 size_t len;
2494
2495 len = strlen(value);
2496 if (len > 1 && value[len - 1] == *value) {
2497 value[len - 1] = '\0';
2498 value++;
2499 }
2500 }
2501
2502 ret = -1;
2503 new = malloc(sizeof(struct new_config_item));
2504 if (!new)
2505 goto on_error;
2506
2507 new->key = strdup(key);
2508 new->val = strdup(value);
2509 if (!new->val || !new->key)
2510 goto on_error;
2511
2512 ret = 0;
2513
2514on_error:
2515 free(linep);
2516
2517 if (ret < 0 && new) {
2518 free(new->key);
2519 free(new->val);
2520 free(new);
2521 new = NULL;
2522 }
2523
2524 return new;
2525}
2526
6b0d5538 2527int lxc_config_read(const char *file, struct lxc_conf *conf, bool from_include)
c2cc9f0a 2528{
6b0d5538
SH		 2529 struct parse_line_conf c;
2530
2531 c.conf = conf;
2532 c.from_include = from_include;
f979ac15 2533
25a908b8 2534 /* Catch only the top level config file name in the structure. */
504a2217 2535 if (!conf->rcfile)
76d0127f 2536 conf->rcfile = strdup(file);
f979ac15 2537
9994d140 2538 return lxc_file_for_each_line_mmap(file, parse_line, &c);
c2cc9f0a 2539}
62e46035 2540
504a2217 2541int lxc_config_define_add(struct lxc_list *defines, char *arg)
62e46035
CLG		 2542{
2543 struct lxc_list *dent;
2544
2545 dent = malloc(sizeof(struct lxc_list));
2546 if (!dent)
2547 return -1;
2548
d899f11b 2549 dent->elem = parse_new_conf_line(arg);
2550 if (!dent->elem) {
2551 free(dent);
2552 return -1;
2553 }
2554
62e46035 2555 lxc_list_add_tail(defines, dent);
47903908 2556
62e46035
CLG		 2557 return 0;
2558}
2559
eb0c9382 2560bool lxc_config_define_load(struct lxc_list *defines, struct lxc_container *c)
62e46035 2561{
eb0c9382 2562 struct lxc_list *it;
2563 bool bret = true;
62e46035
CLG		 2564
2565 lxc_list_for_each(it, defines) {
eb0c9382 2566 struct new_config_item *new_item = it->elem;
2567 bret = c->set_config_item(c, new_item->key, new_item->val);
2568 if (!bret)
62e46035
CLG		 2569 break;
2570 }
2571
eb0c9382 2572 lxc_config_define_free(defines);
47903908 2573
eb0c9382 2574 return bret;
2575}
2576
2577void lxc_config_define_free(struct lxc_list *defines)
2578{
2579 struct lxc_list *it, *next;
2580
9ebb03ad 2581 lxc_list_for_each_safe(it, defines, next) {
eb0c9382 2582 struct new_config_item *new_item = it->elem;
2583 free(new_item->key);
2584 free(new_item->val);
62e46035
CLG		 2585 lxc_list_del(it);
2586 free(it);
2587 }
62e46035 2588}
525f0002
CS		 2589
2590signed long lxc_config_parse_arch(const char *arch)
2591{
504a2217
CB		 2592#if HAVE_SYS_PERSONALITY_H
2593 size_t i;
525f0002
CS		 2594 struct per_name {
2595 char *name;
2596 unsigned long per;
bb8d8207 2597 } pername[] = {
8f3e3c13
CB		 2598 { "arm", PER_LINUX32 },
2599 { "armel", PER_LINUX32 },
2600 { "armhf", PER_LINUX32 },
2601 { "armv7l", PER_LINUX32 },
2602 { "athlon", PER_LINUX32 },
504a2217
CB		 2603 { "i386", PER_LINUX32 },
2604 { "i486", PER_LINUX32 },
2605 { "i586", PER_LINUX32 },
2606 { "i686", PER_LINUX32 },
8f3e3c13 2607 { "linux32", PER_LINUX32 },
504a2217
CB		 2608 { "mips", PER_LINUX32 },
2609 { "mipsel", PER_LINUX32 },
2610 { "ppc", PER_LINUX32 },
504a2217 2611 { "powerpc", PER_LINUX32 },
8f3e3c13 2612 { "x86", PER_LINUX32 },
504a2217 2613 { "amd64", PER_LINUX },
8f3e3c13
CB		 2614 { "arm64", PER_LINUX },
2615 { "linux64", PER_LINUX },
504a2217
CB		 2616 { "mips64", PER_LINUX },
2617 { "mips64el", PER_LINUX },
2618 { "ppc64", PER_LINUX },
504a2217 2619 { "ppc64el", PER_LINUX },
8f3e3c13 2620 { "ppc64le", PER_LINUX },
504a2217
CB		 2621 { "powerpc64", PER_LINUX },
2622 { "s390x", PER_LINUX },
8f3e3c13 2623 { "x86_64", PER_LINUX },
525f0002
CS		 2624 };
2625 size_t len = sizeof(pername) / sizeof(pername[0]);
2626
8f3e3c13 2627 for (i = 0; i < len; i++)
525f0002 2628 if (!strcmp(pername[i].name, arch))
504a2217 2629 return pername[i].per;
504a2217 2630#endif
525f0002
CS		 2631
2632 return -1;
2633}
72d0e1cb 2634
eb0c9382 2635int lxc_fill_elevated_privileges(char *flaglist, int *flags)
2636{
62dd965e 2637 char *token;
eb0c9382 2638 int i, aflag;
2639 struct {
2640 const char *token;
2641 int flag;
2642 } all_privs[] = {
2643 { "CGROUP", LXC_ATTACH_MOVE_TO_CGROUP },
2644 { "CAP", LXC_ATTACH_DROP_CAPABILITIES },
2645 { "LSM", LXC_ATTACH_LSM_EXEC },
2646 { NULL, 0 }
2647 };
2648
2649 if (!flaglist) {
2650 /* For the sake of backward compatibility, drop all privileges
2651 * if none is specified.
2652 */
2653 for (i = 0; all_privs[i].token; i++)
2654 *flags |= all_privs[i].flag;
2655
2656 return 0;
2657 }
2658
62dd965e 2659 lxc_iterate_parts(token, flaglist, "|") {
eb0c9382 2660 aflag = -1;
2661
2662 for (i = 0; all_privs[i].token; i++)
2663 if (!strcmp(all_privs[i].token, token))
2664 aflag = all_privs[i].flag;
2665
2666 if (aflag < 0)
2667 return -1;
2668
2669 *flags |= aflag;
eb0c9382 2670 }
2671
2672 return 0;
2673}
2674
504a2217 2675/* Write out a configuration file. */
0e1a60b0 2676int write_config(int fd, const struct lxc_conf *conf)
72d0e1cb 2677{
6b0d5538 2678 int ret;
0e1a60b0 2679 size_t len = conf->unexpanded_len;
72d0e1cb 2680
0e1a60b0
CB		 2681 if (len == 0)
2682 return 0;
504a2217 2683
0e1a60b0
CB		 2684 ret = lxc_write_nointr(fd, conf->unexpanded_config, len);
2685 if (ret < 0) {
25a908b8 2686 SYSERROR("Failed to write configuration file");
0e1a60b0
CB		 2687 return -1;
2688 }
2689
2690 return 0;
6b0d5538 2691}
f979ac15 2692
504a2217
CB		 2693bool do_append_unexp_config_line(struct lxc_conf *conf, const char *key,
2694 const char *v)
6b0d5538
SH		 2695{
2696 int ret;
151d2da2
CB		 2697 size_t len;
2698 char *tmp;
4184c3e1 2699
151d2da2
CB		 2700 len = strlen(key) + strlen(v) + 4;
2701 tmp = alloca(len);
2702
663e9916 2703 if (lxc_config_value_empty(v))
151d2da2
CB		 2704 ret = snprintf(tmp, len, "%s =", key);
2705 else
2706 ret = snprintf(tmp, len, "%s = %s", key, v);
6b0d5538
SH		 2707 if (ret < 0 || ret >= len)
2708 return false;
2709
2710 /* Save the line verbatim into unexpanded_conf */
2711 if (append_unexp_config_line(tmp, conf))
2712 return false;
2713
2714 return true;
2715}
2716
504a2217
CB		 2717void clear_unexp_config_line(struct lxc_conf *conf, const char *key,
2718 bool rm_subkeys)
6b0d5538 2719{
504a2217
CB		 2720 char *lend;
2721 char *lstart = conf->unexpanded_config;
6b0d5538
SH		 2722
2723 if (!conf->unexpanded_config)
2724 return;
504a2217 2725
6b0d5538
SH		 2726 while (*lstart) {
2727 lend = strchr(lstart, '\n');
2728 char v;
47903908 2729
6b0d5538
SH		 2730 if (!lend)
2731 lend = lstart + strlen(lstart);
2732 else
2733 lend++;
47903908 2734
6b0d5538
SH		 2735 if (strncmp(lstart, key, strlen(key)) != 0) {
2736 lstart = lend;
2737 continue;
5f62730e 2738 }
47903908 2739
6b0d5538
SH		 2740 if (!rm_subkeys) {
2741 v = lstart[strlen(key)];
2742 if (!isspace(v) && v != '=') {
2743 lstart = lend;
2744 continue;
2745 }
5f62730e 2746 }
47903908 2747
6b0d5538 2748 conf->unexpanded_len -= (lend - lstart);
47903908 2749
6b0d5538
SH		 2750 if (*lend == '\0') {
2751 *lstart = '\0';
2752 return;
fd986e08 2753 }
47903908 2754
504a2217 2755 memmove(lstart, lend, strlen(lend) + 1);
fd986e08 2756 }
6b0d5538
SH		 2757}
2758
329b3625
CB		 2759bool clone_update_unexp_ovl_paths(struct lxc_conf *conf, const char *oldpath,
2760 const char *newpath, const char *oldname,
2761 const char *newname, const char *ovldir)
2762{
329b3625 2763 int ret;
504a2217
CB		 2764 char *lend, *newdir, *olddir, *p, *q;
2765 size_t newdirlen, olddirlen;
329b3625 2766 char *lstart = conf->unexpanded_config;
504a2217 2767 const char *key = "lxc.mount.entry";
329b3625 2768
504a2217
CB		 2769 olddirlen = strlen(ovldir) + strlen(oldpath) + strlen(oldname) + 2;
2770 olddir = alloca(olddirlen + 1);
2771 ret = snprintf(olddir, olddirlen + 1, "%s=%s/%s", ovldir, oldpath,
2772 oldname);
25a908b8 2773 if (ret < 0 || ret >= olddirlen + 1)
329b3625 2774 return false;
504a2217
CB		 2775
2776 newdirlen = strlen(ovldir) + strlen(newpath) + strlen(newname) + 2;
2777 newdir = alloca(newdirlen + 1);
2778 ret = snprintf(newdir, newdirlen + 1, "%s=%s/%s", ovldir, newpath,
2779 newname);
25a908b8 2780 if (ret < 0 || ret >= newdirlen + 1)
329b3625 2781 return false;
504a2217 2782
329b3625
CB		 2783 if (!conf->unexpanded_config)
2784 return true;
504a2217 2785
329b3625
CB		 2786 while (*lstart) {
2787 lend = strchr(lstart, '\n');
2788 if (!lend)
2789 lend = lstart + strlen(lstart);
2790 else
2791 lend++;
504a2217 2792
329b3625 2793 if (strncmp(lstart, key, strlen(key)) != 0)
504a2217
CB		 2794 goto next;
2795
329b3625
CB		 2796 p = strchr(lstart + strlen(key), '=');
2797 if (!p)
504a2217 2798 goto next;
329b3625 2799 p++;
504a2217 2800
329b3625
CB		 2801 while (isblank(*p))
2802 p++;
504a2217 2803
329b3625 2804 if (p >= lend)
504a2217
CB		 2805 goto next;
2806
12e6ab5d
CB		 2807 /* Whenever a lxc.mount.entry entry is found in a line we check
2808 * if the substring "overlay" is present before doing any
2809 * further work. We check for "overlay" because substrings need
2810 * to have at least one space before them in a valid overlay
504a2217
CB		 2811 * lxc.mount.entry (/A B overlay). When the space before is
2812 * missing it is very likely that these substrings are part of a
2813 * path or something else. (Checking q >= lend ensures that we
2814 * only count matches in the current line.) */
12e6ab5d
CB		 2815 q = strstr(p, " overlay");
2816 if (!q || q >= lend)
504a2217
CB		 2817 goto next;
2818
329b3625 2819 if (!(q = strstr(p, olddir)) || (q >= lend))
504a2217 2820 goto next;
329b3625
CB		 2821
2822 /* replace the olddir with newdir */
2823 if (olddirlen >= newdirlen) {
2824 size_t diff = olddirlen - newdirlen;
2825 memcpy(q, newdir, newdirlen);
47903908 2826
329b3625
CB		 2827 if (olddirlen != newdirlen) {
2828 memmove(q + newdirlen, q + newdirlen + diff,
47903908 2829 strlen(q) - newdirlen - diff + 1);
329b3625
CB		 2830 lend -= diff;
2831 conf->unexpanded_len -= diff;
2832 }
2833 } else {
2834 char *new;
2835 size_t diff = newdirlen - olddirlen;
2836 size_t oldlen = conf->unexpanded_len;
2837 size_t newlen = oldlen + diff;
2838 size_t poffset = q - conf->unexpanded_config;
504a2217 2839
329b3625 2840 new = realloc(conf->unexpanded_config, newlen + 1);
25a908b8 2841 if (!new)
329b3625 2842 return false;
25a908b8 2843
329b3625
CB		 2844 conf->unexpanded_len = newlen;
2845 conf->unexpanded_alloced = newlen + 1;
2846 new[newlen - 1] = '\0';
2847 lend = new + (lend - conf->unexpanded_config);
47903908 2848
25a908b8 2849 /* Move over the remainder to make room for the newdir.
504a2217 2850 */
329b3625 2851 memmove(new + poffset + newdirlen,
47903908 2852 new + poffset + olddirlen,
2853 oldlen - poffset - olddirlen + 1);
329b3625 2854 conf->unexpanded_config = new;
47903908 2855
329b3625
CB		 2856 memcpy(new + poffset, newdir, newdirlen);
2857 lend += diff;
2858 }
47903908 2859
504a2217
CB		 2860 next:
2861 lstart = lend;
329b3625 2862 }
504a2217 2863
329b3625
CB		 2864 return true;
2865}
2866
67702c21 2867bool clone_update_unexp_hooks(struct lxc_conf *conf, const char *oldpath,
d546aa0e
CB		 2868 const char *newpath, const char *oldname,
2869 const char *newname)
6b0d5538 2870{
67702c21 2871 int ret;
504a2217
CB		 2872 char *lend, *newdir, *olddir, *p;
2873 char *lstart = conf->unexpanded_config;
2874 size_t newdirlen, olddirlen;
2875 const char *key = "lxc.hook";
67702c21 2876
504a2217
CB		 2877 olddirlen = strlen(oldpath) + strlen(oldname) + 1;
2878 olddir = alloca(olddirlen + 1);
d546aa0e 2879 ret = snprintf(olddir, olddirlen + 1, "%s/%s", oldpath, oldname);
25a908b8 2880 if (ret < 0 || ret >= olddirlen + 1)
67702c21 2881 return false;
504a2217
CB		 2882
2883 newdirlen = strlen(newpath) + strlen(newname) + 1;
2884 newdir = alloca(newdirlen + 1);
d546aa0e 2885 ret = snprintf(newdir, newdirlen + 1, "%s/%s", newpath, newname);
25a908b8 2886 if (ret < 0 || ret >= newdirlen + 1)
67702c21 2887 return false;
25a908b8 2888
67702c21
SH		 2889 if (!conf->unexpanded_config)
2890 return true;
25a908b8 2891
67702c21
SH		 2892 while (*lstart) {
2893 lend = strchr(lstart, '\n');
2894 if (!lend)
2895 lend = lstart + strlen(lstart);
2896 else
2897 lend++;
504a2217 2898
d546aa0e 2899 if (strncmp(lstart, key, strlen(key)) != 0)
504a2217
CB		 2900 goto next;
2901
d546aa0e
CB		 2902 p = strchr(lstart + strlen(key), '=');
2903 if (!p)
504a2217 2904 goto next;
67702c21 2905 p++;
504a2217 2906
67702c21
SH		 2907 while (isblank(*p))
2908 p++;
504a2217
CB		 2909
2910 if (p >= lend)
2911 goto next;
2912
d546aa0e 2913 if (strncmp(p, olddir, strlen(olddir)) != 0)
504a2217
CB		 2914 goto next;
2915
67702c21
SH		 2916 /* replace the olddir with newdir */
2917 if (olddirlen >= newdirlen) {
2918 size_t diff = olddirlen - newdirlen;
2919 memcpy(p, newdir, newdirlen);
47903908 2920
67702c21 2921 if (olddirlen != newdirlen) {
d546aa0e 2922 memmove(p + newdirlen, p + newdirlen + diff,
47903908 2923 strlen(p) - newdirlen - diff + 1);
67702c21
SH		 2924 lend -= diff;
2925 conf->unexpanded_len -= diff;
2926 }
67702c21
SH		 2927 } else {
2928 char *new;
2929 size_t diff = newdirlen - olddirlen;
2930 size_t oldlen = conf->unexpanded_len;
2931 size_t newlen = oldlen + diff;
2932 size_t poffset = p - conf->unexpanded_config;
504a2217 2933
d546aa0e 2934 new = realloc(conf->unexpanded_config, newlen + 1);
25a908b8 2935 if (!new)
6b0d5538 2936 return false;
25a908b8 2937
67702c21 2938 conf->unexpanded_len = newlen;
d546aa0e
CB		 2939 conf->unexpanded_alloced = newlen + 1;
2940 new[newlen - 1] = '\0';
67702c21 2941 lend = new + (lend - conf->unexpanded_config);
47903908 2942
25a908b8 2943 /* Move over the remainder to make room for the newdir.
504a2217 2944 */
d546aa0e 2945 memmove(new + poffset + newdirlen,
47903908 2946 new + poffset + olddirlen,
2947 oldlen - poffset - olddirlen + 1);
67702c21 2948 conf->unexpanded_config = new;
47903908 2949
d546aa0e
CB		 2950 memcpy(new + poffset, newdir, newdirlen);
2951 lend += diff;
fd986e08 2952 }
47903908 2953
504a2217
CB		 2954 next:
2955 lstart = lend;
fd986e08 2956 }
504a2217 2957
6b0d5538
SH		 2958 return true;
2959}
2960
504a2217
CB		 2961#define DO(cmd) \
2962 { \
2963 if (!(cmd)) { \
2964 ERROR("Error writing to new config"); \
2965 return false; \
2966 } \
2967 }
6b0d5538 2968
25a908b8
CB		 2969/* This is called only from clone. We wish to update all hwaddrs in the
2970 * unexpanded config file. We can't/don't want to update any which come from
504a2217
CB		 2971 * lxc.includes (there shouldn't be any).
2972 * We can't just walk the c->lxc-conf->network list because that includes netifs
2973 * from the include files. So we update the ones which we find in the unexp
2974 * config file, then find the original macaddr in the conf->network, and update
2975 * that to the same value.
67702c21
SH		 2976 */
2977bool network_new_hwaddrs(struct lxc_conf *conf)
6b0d5538 2978{
504a2217 2979 char *lend, *p, *p2;
6b0d5538 2980 struct lxc_list *it;
504a2217 2981 char *lstart = conf->unexpanded_config;
6b0d5538 2982
67702c21
SH		 2983 if (!conf->unexpanded_config)
2984 return true;
091045f8 2985
67702c21
SH		 2986 while (*lstart) {
2987 char newhwaddr[18], oldhwaddr[17];
091045f8 2988
67702c21
SH		 2989 lend = strchr(lstart, '\n');
2990 if (!lend)
2991 lend = lstart + strlen(lstart);
2992 else
2993 lend++;
091045f8 2994
4a787c27 2995 if (!lxc_config_net_hwaddr(lstart)) {
67702c21
SH		 2996 lstart = lend;
2997 continue;
72d0e1cb 2998 }
091045f8 2999
4a787c27 3000 p = strchr(lstart, '=');
67702c21
SH		 3001 if (!p) {
3002 lstart = lend;
3003 continue;
72d0e1cb 3004 }
091045f8 3005
67702c21
SH		 3006 p++;
3007 while (isblank(*p))
3008 p++;
3009 if (!*p)
3010 return true;
091045f8 3011
67702c21
SH		 3012 p2 = p;
3013 while (*p2 && !isblank(*p2) && *p2 != '\n')
3014 p2++;
504a2217
CB		 3015
3016 if ((p2 - p) != 17) {
67702c21
SH		 3017 WARN("Bad hwaddr entry");
3018 lstart = lend;
3019 continue;
72d0e1cb 3020 }
091045f8 3021
67702c21 3022 memcpy(oldhwaddr, p, 17);
091045f8
CB		 3023
3024 if (!new_hwaddr(newhwaddr))
3025 return false;
3026
67702c21 3027 memcpy(p, newhwaddr, 17);
25a908b8 3028 lxc_list_for_each(it, &conf->network) {
67702c21 3029 struct lxc_netdev *n = it->elem;
25a908b8 3030
67702c21
SH		 3031 if (n->hwaddr && memcmp(oldhwaddr, n->hwaddr, 17) == 0)
3032 memcpy(n->hwaddr, newhwaddr, 17);
72d0e1cb 3033 }
67702c21
SH		 3034
3035 lstart = lend;
72d0e1cb 3036 }
091045f8 3037
6b0d5538 3038 return true;
72d0e1cb 3039}
8796becf 3040
713046e3 3041static int set_config_ephemeral(const char *key, const char *value,
c7e27aaf 3042 struct lxc_conf *lxc_conf, void *data)
8796becf 3043{
663e9916 3044 if (lxc_config_value_empty(value)) {
3c6cf53a 3045 lxc_conf->ephemeral = 0;
78304622 3046 return 0;
3c6cf53a 3047 }
78304622 3048
66ffdb1a
CB		 3049 if (lxc_safe_uint(value, &lxc_conf->ephemeral) < 0)
3050 return -1;
8796becf 3051
25a908b8 3052 if (lxc_conf->ephemeral > 1)
8796becf 3053 return -1;
8796becf
CB		 3054
3055 return 0;
3056}
3057
46cc906d 3058static int set_config_log_syslog(const char *key, const char *value,
c7e27aaf 3059 struct lxc_conf *lxc_conf, void *data)
64c57ea1 3060{
76d0127f 3061 int facility;
7ca56b84 3062
ee10a69c
CB		 3063 if (lxc_conf->syslog) {
3064 free(lxc_conf->syslog);
3065 lxc_conf->syslog = NULL;
3066 }
3067
663e9916 3068 if (lxc_config_value_empty(value))
7ca56b84
CB		 3069 return 0;
3070
76d0127f 3071 facility = lxc_syslog_priority_to_int(value);
25a908b8 3072 if (facility == -EINVAL)
76d0127f 3073 return -1;
64c57ea1 3074
76d0127f 3075 lxc_log_syslog(facility);
47903908 3076
713046e3 3077 return set_config_string_item(&lxc_conf->syslog, value);
64c57ea1 3078}
5a46f283 3079
713046e3 3080static int set_config_no_new_privs(const char *key, const char *value,
c7e27aaf 3081 struct lxc_conf *lxc_conf, void *data)
5a46f283 3082{
e8ec7c9e 3083 unsigned int v;
5a46f283 3084
663e9916 3085 if (lxc_config_value_empty(value)) {
cf3f8bf6 3086 lxc_conf->no_new_privs = false;
80926845 3087 return 0;
cf3f8bf6 3088 }
80926845 3089
e8ec7c9e
CB		 3090 if (lxc_safe_uint(value, &v) < 0)
3091 return -1;
3092
25a908b8 3093 if (v > 1)
5a46f283 3094 return -1;
e8ec7c9e 3095
5a46f283
CB		 3096 lxc_conf->no_new_privs = v ? true : false;
3097
3098 return 0;
3099}
7b992a3e
CB		 3100
3101/* Callbacks to get configuration items. */
6bede808 3102static int get_config_personality(const char *key, char *retv, int inlen,
cccd2219 3103 struct lxc_conf *c, void *data)
7b992a3e
CB		 3104{
3105 int fulllen = 0;
3106
3107 if (!retv)
3108 inlen = 0;
3109 else
3110 memset(retv, 0, inlen);
3111
3112#if HAVE_SYS_PERSONALITY_H
3113 int len = 0;
3114
6bede808 3115 switch (c->personality) {
7b992a3e
CB		 3116 case PER_LINUX32:
3117 strprint(retv, inlen, "i686");
3118 break;
3119 case PER_LINUX:
3120 strprint(retv, inlen, "x86_64");
3121 break;
3122 default:
3123 break;
3124 }
3125#endif
3126
3127 return fulllen;
3128}
bdf91ab4 3129
232763d6
CB		 3130static int get_config_pty_max(const char *key, char *retv, int inlen,
3131 struct lxc_conf *c, void *data)
bdf91ab4 3132{
e528c735 3133 return lxc_get_conf_size_t(c, retv, inlen, c->pty_max);
bdf91ab4 3134}
5485782f 3135
fe1c5887
CB		 3136static int get_config_tty_max(const char *key, char *retv, int inlen,
3137 struct lxc_conf *c, void *data)
5485782f 3138{
885766f5 3139 return lxc_get_conf_size_t(c, retv, inlen, c->ttys.max);
5485782f 3140}
8015e018 3141
42e53c29 3142static int get_config_tty_dir(const char *key, char *retv, int inlen,
cccd2219 3143 struct lxc_conf *c, void *data)
8015e018 3144{
885766f5 3145 return lxc_get_conf_str(retv, inlen, c->ttys.dir);
8015e018 3146}
de1ede69 3147
953fe44f
CB		 3148static int get_config_apparmor_profile(const char *key, char *retv, int inlen,
3149 struct lxc_conf *c, void *data)
104c8e6c 3150{
6bede808 3151 return lxc_get_conf_str(retv, inlen, c->lsm_aa_profile);
104c8e6c 3152}
d60d18c6 3153
953fe44f
CB		 3154static int get_config_apparmor_allow_incomplete(const char *key, char *retv,
3155 int inlen, struct lxc_conf *c,
3156 void *data)
d60d18c6 3157{
6bede808
CB		 3158 return lxc_get_conf_int(c, retv, inlen,
3159 c->lsm_aa_allow_incomplete);
d60d18c6 3160}
4203a0b5 3161
1800f924
WB		 3162static int get_config_apparmor_allow_nesting(const char *key, char *retv,
3163 int inlen, struct lxc_conf *c,
3164 void *data)
3165{
3166 return lxc_get_conf_int(c, retv, inlen,
3167 c->lsm_aa_allow_nesting);
3168}
3169
3170static int get_config_apparmor_raw(const char *key, char *retv,
3171 int inlen, struct lxc_conf *c,
3172 void *data)
3173{
3174 int len;
3175 struct lxc_list *it;
3176 int fulllen = 0;
3177
3178 if (!retv)
3179 inlen = 0;
3180 else
3181 memset(retv, 0, inlen);
3182
3183 lxc_list_for_each(it, &c->lsm_aa_raw) {
3184 strprint(retv, inlen, "%s\n", (char *)it->elem);
3185 }
3186
3187 return fulllen;
3188}
3189
953fe44f
CB		 3190static int get_config_selinux_context(const char *key, char *retv, int inlen,
3191 struct lxc_conf *c, void *data)
4203a0b5 3192{
6bede808 3193 return lxc_get_conf_str(retv, inlen, c->lsm_se_context);
4203a0b5 3194}
b863bf92 3195
25a908b8
CB		 3196/* If you ask for a specific cgroup value, i.e. lxc.cgroup.devices.list, then
3197 * just the value(s) will be printed. Since there still could be more than one,
3198 * it is newline-separated.
8d47350b 3199 * (Maybe that's ambiguous, since some values, i.e. devices.list, will already
25a908b8
CB		 3200 * have newlines?)
3201 * If you ask for 'lxc.cgroup", then all cgroup entries will be printed, in
3202 * 'lxc.cgroup.subsystem.key = value' format.
b863bf92 3203 */
54860ed0
CB		 3204static int __get_config_cgroup_controller(const char *key, char *retv,
3205 int inlen, struct lxc_conf *c,
3206 int version)
b863bf92 3207{
b863bf92 3208 int len;
54860ed0
CB		 3209 size_t namespaced_token_len;
3210 char *global_token, *namespaced_token;
3211 struct lxc_list *it;
b863bf92
CB		 3212 int fulllen = 0;
3213 bool get_all = false;
3214
3215 if (!retv)
3216 inlen = 0;
3217 else
3218 memset(retv, 0, inlen);
3219
54860ed0
CB		 3220 if (version == CGROUP2_SUPER_MAGIC) {
3221 global_token = "lxc.cgroup2";
3222 namespaced_token = "lxc.cgroup2.";
6333c915 3223 namespaced_token_len = STRLITERALLEN("lxc.cgroup2.");
54860ed0
CB		 3224 } else if (version == CGROUP_SUPER_MAGIC) {
3225 global_token = "lxc.cgroup";
3226 namespaced_token = "lxc.cgroup.";
6333c915 3227 namespaced_token_len = STRLITERALLEN("lxc.cgroup.");
54860ed0
CB		 3228 } else {
3229 return -1;
3230 }
3231
3232 if (strcmp(key, global_token) == 0)
b863bf92 3233 get_all = true;
54860ed0
CB		 3234 else if (strncmp(key, namespaced_token, namespaced_token_len) == 0)
3235 key += namespaced_token_len;
b863bf92
CB		 3236 else
3237 return -1;
3238
6bede808 3239 lxc_list_for_each(it, &c->cgroup) {
b863bf92 3240 struct lxc_cgroup *cg = it->elem;
25a908b8 3241
b863bf92 3242 if (get_all) {
54860ed0
CB		 3243 if (version != cg->version)
3244 continue;
3245
47903908 3246 strprint(retv, inlen, "%s.%s = %s\n", global_token,
3247 cg->subsystem, cg->value);
3248 } else if (strcmp(cg->subsystem, key) == 0) {
b863bf92
CB		 3249 strprint(retv, inlen, "%s\n", cg->value);
3250 }
3251 }
3252
3253 return fulllen;
3254}
5014ff2e 3255
54860ed0
CB		 3256static int get_config_cgroup_controller(const char *key, char *retv, int inlen,
3257 struct lxc_conf *c, void *data)
3258{
3259 return __get_config_cgroup_controller(key, retv, inlen, c,
3260 CGROUP_SUPER_MAGIC);
3261}
3262
3263static int get_config_cgroup2_controller(const char *key, char *retv, int inlen,
3264 struct lxc_conf *c, void *data)
3265{
3266 return __get_config_cgroup_controller(key, retv, inlen, c,
3267 CGROUP2_SUPER_MAGIC);
3268}
3269
43654d34
CB		 3270static int get_config_cgroup_dir(const char *key, char *retv, int inlen,
3271 struct lxc_conf *lxc_conf, void *data)
3272{
3273 int len;
3274 int fulllen = 0;
3275
3276 if (!retv)
3277 inlen = 0;
3278 else
3279 memset(retv, 0, inlen);
3280
3281 strprint(retv, inlen, "%s", lxc_conf->cgroup_meta.dir);
3282
3283 return fulllen;
3284}
3285
9caee129
CB		 3286static inline int get_config_cgroup_relative(const char *key, char *retv,
3287 int inlen, struct lxc_conf *lxc_conf,
3288 void *data)
76f0e2e7
CB		 3289{
3290 return lxc_get_conf_int(lxc_conf, retv, inlen,
9caee129 3291 lxc_conf->cgroup_meta.relative);
76f0e2e7
CB		 3292}
3293
6bede808 3294static int get_config_idmaps(const char *key, char *retv, int inlen,
cccd2219 3295 struct lxc_conf *c, void *data)
5014ff2e
CB		 3296{
3297 struct lxc_list *it;
3298 int len, listlen, ret;
3299 int fulllen = 0;
3300/* "u 1000 1000000 65536"
3301 *
3302 * let's render this as
3303 *
3304 * sizeof(char)
3305 * +
3306 * sizeof(" ")
3307 * +
c77aee64 3308 * sizeof(uint32_t)
5014ff2e
CB		 3309 * +
3310 * sizeof(" ")
3311 * +
c77aee64 3312 * sizeof(uint32_t)
5014ff2e
CB		 3313 * +
3314 * sizeof(" ")
3315 * +
c77aee64 3316 * sizeof(uint32_t)
5014ff2e
CB		 3317 * +
3318 * \0
3319 */
c77aee64 3320#define __LXC_IDMAP_STR_BUF (3 * INTTYPE_TO_STRLEN(uint32_t) + 3 + 1 + 1)
5014ff2e
CB		 3321 char buf[__LXC_IDMAP_STR_BUF];
3322
3323 if (!retv)
3324 inlen = 0;
3325 else
3326 memset(retv, 0, inlen);
3327
6bede808 3328 listlen = lxc_list_len(&c->id_map);
c77aee64 3329 lxc_list_for_each(it, &c->id_map) {
5014ff2e
CB		 3330 struct id_map *map = it->elem;
3331 ret = snprintf(buf, __LXC_IDMAP_STR_BUF, "%c %lu %lu %lu",
3332 (map->idtype == ID_TYPE_UID) ? 'u' : 'g',
3333 map->nsid, map->hostid, map->range);
3334 if (ret < 0 || ret >= __LXC_IDMAP_STR_BUF)
3335 return -1;
3336
3337 strprint(retv, inlen, "%s%s", buf, (listlen-- > 1) ? "\n" : "");
3338 }
47903908 3339
5014ff2e
CB		 3340 return fulllen;
3341}
b29b29be 3342
46cc906d 3343static int get_config_log_level(const char *key, char *retv, int inlen,
cccd2219 3344 struct lxc_conf *c, void *data)
b29b29be
CB		 3345{
3346 const char *v;
6bede808 3347 v = lxc_log_priority_to_string(c->loglevel);
b29b29be
CB		 3348 return lxc_get_conf_str(retv, inlen, v);
3349}
3d4630ab 3350
46cc906d 3351static int get_config_log_file(const char *key, char *retv, int inlen,
cccd2219 3352 struct lxc_conf *c, void *data)
3d4630ab 3353{
6bede808 3354 return lxc_get_conf_str(retv, inlen, c->logfile);
3d4630ab 3355}
0d601acb 3356
47148e96
CB		 3357static int get_config_mount_fstab(const char *key, char *retv, int inlen,
3358 struct lxc_conf *c, void *data)
0d601acb 3359{
6bede808 3360 return lxc_get_conf_str(retv, inlen, c->fstab);
0d601acb 3361}
43fbf8d9 3362
6bede808 3363static int get_config_mount_auto(const char *key, char *retv, int inlen,
cccd2219 3364 struct lxc_conf *c, void *data)
43fbf8d9
CB		 3365{
3366 int len, fulllen = 0;
3367 const char *sep = "";
3368
3369 if (!retv)
3370 inlen = 0;
3371 else
3372 memset(retv, 0, inlen);
3373
6bede808 3374 if (!(c->auto_mounts & LXC_AUTO_ALL_MASK))
43fbf8d9
CB		 3375 return 0;
3376
6bede808 3377 switch (c->auto_mounts & LXC_AUTO_PROC_MASK) {
43fbf8d9
CB		 3378 case LXC_AUTO_PROC_MIXED:
3379 strprint(retv, inlen, "%sproc:mixed", sep);
3380 sep = " ";
3381 break;
3382 case LXC_AUTO_PROC_RW:
3383 strprint(retv, inlen, "%sproc:rw", sep);
3384 sep = " ";
3385 break;
3386 default:
3387 break;
3388 }
3389
6bede808 3390 switch (c->auto_mounts & LXC_AUTO_SYS_MASK) {
43fbf8d9
CB		 3391 case LXC_AUTO_SYS_RO:
3392 strprint(retv, inlen, "%ssys:ro", sep);
3393 sep = " ";
3394 break;
3395 case LXC_AUTO_SYS_RW:
3396 strprint(retv, inlen, "%ssys:rw", sep);
3397 sep = " ";
3398 break;
3399 case LXC_AUTO_SYS_MIXED:
3400 strprint(retv, inlen, "%ssys:mixed", sep);
3401 sep = " ";
3402 break;
3403 default:
3404 break;
3405 }
3406
6bede808 3407 switch (c->auto_mounts & LXC_AUTO_CGROUP_MASK) {
43fbf8d9
CB		 3408 case LXC_AUTO_CGROUP_NOSPEC:
3409 strprint(retv, inlen, "%scgroup", sep);
43fbf8d9
CB		 3410 break;
3411 case LXC_AUTO_CGROUP_MIXED:
3412 strprint(retv, inlen, "%scgroup:mixed", sep);
43fbf8d9
CB		 3413 break;
3414 case LXC_AUTO_CGROUP_RO:
3415 strprint(retv, inlen, "%scgroup:ro", sep);
43fbf8d9
CB		 3416 break;
3417 case LXC_AUTO_CGROUP_RW:
3418 strprint(retv, inlen, "%scgroup:rw", sep);
43fbf8d9
CB		 3419 break;
3420 case LXC_AUTO_CGROUP_FULL_NOSPEC:
3421 strprint(retv, inlen, "%scgroup-full", sep);
43fbf8d9
CB		 3422 break;
3423 case LXC_AUTO_CGROUP_FULL_MIXED:
3424 strprint(retv, inlen, "%scgroup-full:mixed", sep);
43fbf8d9
CB		 3425 break;
3426 case LXC_AUTO_CGROUP_FULL_RO:
3427 strprint(retv, inlen, "%scgroup-full:ro", sep);
43fbf8d9
CB		 3428 break;
3429 case LXC_AUTO_CGROUP_FULL_RW:
3430 strprint(retv, inlen, "%scgroup-full:rw", sep);
43fbf8d9
CB		 3431 break;
3432 default:
3433 break;
3434 }
3435
3436 return fulllen;
3437}
cc921848 3438
6bede808 3439static int get_config_mount(const char *key, char *retv, int inlen,
cccd2219 3440 struct lxc_conf *c, void *data)
cc921848
CB		 3441{
3442 int len, fulllen = 0;
3443 struct lxc_list *it;
3444
3445 if (!retv)
3446 inlen = 0;
3447 else
3448 memset(retv, 0, inlen);
3449
25a908b8 3450 lxc_list_for_each(it, &c->mount_list) {
cc921848
CB		 3451 strprint(retv, inlen, "%s\n", (char *)it->elem);
3452 }
3453
3454 return fulllen;
3455}
819114b6 3456
7a96a068
CB		 3457static int get_config_rootfs_path(const char *key, char *retv, int inlen,
3458 struct lxc_conf *c, void *data)
819114b6 3459{
6bede808 3460 return lxc_get_conf_str(retv, inlen, c->rootfs.path);
819114b6 3461}
3af60359 3462
6e54330c
CB		 3463static int get_config_rootfs_managed(const char *key, char *retv, int inlen,
3464 struct lxc_conf *c, void *data)
3465{
3466 return lxc_get_conf_bool(c, retv, inlen, c->rootfs.managed);
3467}
3468
6bede808 3469static int get_config_rootfs_mount(const char *key, char *retv, int inlen,
cccd2219 3470 struct lxc_conf *c, void *data)
3af60359 3471{
6bede808 3472 return lxc_get_conf_str(retv, inlen, c->rootfs.mount);
3af60359 3473}
0e9db631 3474
6bede808 3475static int get_config_rootfs_options(const char *key, char *retv, int inlen,
cccd2219 3476 struct lxc_conf *c, void *data)
0e9db631 3477{
6bede808 3478 return lxc_get_conf_str(retv, inlen, c->rootfs.options);
0e9db631 3479}
8f183f38 3480
b67771bc 3481static int get_config_uts_name(const char *key, char *retv, int inlen,
cccd2219 3482 struct lxc_conf *c, void *data)
e274f8b0
CB		 3483{
3484 return lxc_get_conf_str(
3485 retv, inlen,
6bede808 3486 c->utsname ? c->utsname->nodename : NULL);
e274f8b0 3487}
466c2e93 3488
6bede808 3489static int get_config_hooks(const char *key, char *retv, int inlen,
cccd2219 3490 struct lxc_conf *c, void *data)
466c2e93
CB		 3491{
3492 char *subkey;
3493 int len, fulllen = 0, found = -1;
3494 struct lxc_list *it;
3495 int i;
3496
466c2e93 3497 subkey = strchr(key, '.');
466c2e93
CB		 3498 if (!subkey)
3499 return -1;
47903908 3500
3501 subkey = strchr(subkey + 1, '.');
637d38f2
CB		 3502 if (!subkey)
3503 return -1;
466c2e93 3504 subkey++;
637d38f2 3505 if (*subkey == '\0')
466c2e93 3506 return -1;
47903908 3507
466c2e93
CB		 3508 for (i = 0; i < NUM_LXC_HOOKS; i++) {
3509 if (strcmp(lxchook_names[i], subkey) == 0) {
3510 found = i;
3511 break;
3512 }
3513 }
47903908 3514
466c2e93
CB		 3515 if (found == -1)
3516 return -1;
3517
3518 if (!retv)
3519 inlen = 0;
3520 else
3521 memset(retv, 0, inlen);
3522
6bede808 3523 lxc_list_for_each(it, &c->hooks[found]) {
466c2e93
CB		 3524 strprint(retv, inlen, "%s\n", (char *)it->elem);
3525 }
47903908 3526
466c2e93
CB		 3527 return fulllen;
3528}
d2ceff53 3529
44ae0fb6
CB		 3530static int get_config_hooks_version(const char *key, char *retv, int inlen,
3531 struct lxc_conf *c, void *data)
3532{
3533 return lxc_get_conf_int(c, retv, inlen, c->hooks_version);
3534}
3535
f9373e40
CB		 3536static int get_config_net(const char *key, char *retv, int inlen,
3537 struct lxc_conf *c, void *data)
d2ceff53
CB		 3538{
3539 int len, fulllen = 0;
3540 struct lxc_list *it;
3541
3542 if (!retv)
3543 inlen = 0;
3544 else
3545 memset(retv, 0, inlen);
3546
6bede808 3547 lxc_list_for_each(it, &c->network) {
d2ceff53
CB		 3548 struct lxc_netdev *n = it->elem;
3549 const char *t = lxc_net_type_to_str(n->type);
3550 strprint(retv, inlen, "%s\n", t ? t : "(invalid)");
3551 }
3552
3553 return fulllen;
3554}
bdccff60 3555
6bede808 3556static int get_config_cap_drop(const char *key, char *retv, int inlen,
cccd2219 3557 struct lxc_conf *c, void *data)
1c96d6d8
CB		 3558{
3559 int len, fulllen = 0;
3560 struct lxc_list *it;
3561
3562 if (!retv)
3563 inlen = 0;
3564 else
3565 memset(retv, 0, inlen);
3566
6bede808 3567 lxc_list_for_each(it, &c->caps) {
b80927f2
CB		 3568 strprint(retv, inlen, "%s\n", (char *)it->elem);
3569 }
25a908b8 3570
b80927f2
CB		 3571 return fulllen;
3572}
3573
6bede808 3574static int get_config_cap_keep(const char *key, char *retv, int inlen,
cccd2219 3575 struct lxc_conf *c, void *data)
b80927f2
CB		 3576{
3577 int len, fulllen = 0;
3578 struct lxc_list *it;
3579
3580 if (!retv)
3581 inlen = 0;
3582 else
3583 memset(retv, 0, inlen);
3584
6bede808 3585 lxc_list_for_each(it, &c->keepcaps) {
1c96d6d8
CB		 3586 strprint(retv, inlen, "%s\n", (char *)it->elem);
3587 }
25a908b8 3588
1c96d6d8
CB		 3589 return fulllen;
3590}
0692663a 3591
3aed4934
CB		 3592static int get_config_console_path(const char *key, char *retv, int inlen,
3593 struct lxc_conf *c, void *data)
0692663a 3594{
6bede808 3595 return lxc_get_conf_str(retv, inlen, c->console.path);
0692663a 3596}
794d1c06 3597
6bede808 3598static int get_config_console_logfile(const char *key, char *retv, int inlen,
cccd2219 3599 struct lxc_conf *c, void *data)
794d1c06 3600{
6bede808 3601 return lxc_get_conf_str(retv, inlen, c->console.log_path);
794d1c06 3602}
75f55b1f 3603
d91adfa6
CB		 3604static int get_config_console_rotate(const char *key, char *retv, int inlen,
3605 struct lxc_conf *c, void *data)
3606{
3607 return lxc_get_conf_int(c, retv, inlen, c->console.log_rotate);
3608}
3609
3610
28f3b1cd
CB		 3611static int get_config_console_buffer_size(const char *key, char *retv,
3612 int inlen, struct lxc_conf *c,
3613 void *data)
a04220de 3614{
dcea90a0 3615 return lxc_get_conf_uint64(c, retv, inlen, c->console.buffer_size);
a04220de
CB		 3616}
3617
861813e5
CB		 3618static int get_config_console_size(const char *key, char *retv, int inlen,
3619 struct lxc_conf *c, void *data)
3620{
3621 return lxc_get_conf_uint64(c, retv, inlen, c->console.log_size);
3622}
3623
3624
0b427da0
CB		 3625static int get_config_seccomp_profile(const char *key, char *retv, int inlen,
3626 struct lxc_conf *c, void *data)
75f55b1f 3627{
6bede808 3628 return lxc_get_conf_str(retv, inlen, c->seccomp);
75f55b1f 3629}
97f6dad0 3630
6bede808 3631static int get_config_autodev(const char *key, char *retv, int inlen,
cccd2219 3632 struct lxc_conf *c, void *data)
97f6dad0 3633{
6bede808 3634 return lxc_get_conf_int(c, retv, inlen, c->autodev);
97f6dad0 3635}
afee4324 3636
55c84efc 3637static int get_config_signal_halt(const char *key, char *retv, int inlen,
25a908b8 3638 struct lxc_conf *c, void *data)
afee4324 3639{
6bede808 3640 return lxc_get_conf_int(c, retv, inlen, c->haltsignal);
afee4324 3641}
3aa8f359 3642
55c84efc 3643static int get_config_signal_reboot(const char *key, char *retv, int inlen,
25a908b8 3644 struct lxc_conf *c, void *data)
3aa8f359 3645{
6bede808 3646 return lxc_get_conf_int(c, retv, inlen, c->rebootsignal);
3aa8f359 3647}
2e16269f 3648
55c84efc 3649static int get_config_signal_stop(const char *key, char *retv, int inlen,
25a908b8 3650 struct lxc_conf *c, void *data)
2e16269f 3651{
6bede808 3652 return lxc_get_conf_int(c, retv, inlen, c->stopsignal);
2e16269f 3653}
54345299 3654
6bede808 3655static int get_config_start(const char *key, char *retv, int inlen,
cccd2219 3656 struct lxc_conf *c, void *data)
54345299 3657{
c6182222 3658 if (strcmp(key + 10, "auto") == 0)
6bede808 3659 return lxc_get_conf_int(c, retv, inlen, c->start_auto);
c6182222 3660 else if (strcmp(key + 10, "delay") == 0)
6bede808 3661 return lxc_get_conf_int(c, retv, inlen, c->start_delay);
c6182222 3662 else if (strcmp(key + 10, "order") == 0)
6bede808 3663 return lxc_get_conf_int(c, retv, inlen, c->start_order);
54345299
CB		 3664
3665 return -1;
3666}
de9df15e 3667
46cc906d 3668static int get_config_log_syslog(const char *key, char *retv, int inlen,
25a908b8 3669 struct lxc_conf *c, void *data)
de9df15e 3670{
6bede808 3671 return lxc_get_conf_str(retv, inlen, c->syslog);
de9df15e 3672}
ac0f949c 3673
6bede808 3674static int get_config_monitor(const char *key, char *retv, int inlen,
cccd2219 3675 struct lxc_conf *c, void *data)
ac0f949c 3676{
6bede808 3677 return lxc_get_conf_int(c, retv, inlen, c->monitor_unshare);
ac0f949c 3678}
90ec7b6e 3679
258f8051
CB		 3680static int get_config_monitor_signal_pdeath(const char *key, char *retv,
3681 int inlen, struct lxc_conf *c,
3682 void *data)
3683{
3684 return lxc_get_conf_int(c, retv, inlen, c->monitor_signal_pdeath);
3685}
3686
6bede808 3687static int get_config_group(const char *key, char *retv, int inlen,
cccd2219 3688 struct lxc_conf *c, void *data)
90ec7b6e
CB		 3689{
3690 int len, fulllen = 0;
3691 struct lxc_list *it;
3692
3693 if (!retv)
3694 inlen = 0;
3695 else
3696 memset(retv, 0, inlen);
3697
6bede808 3698 lxc_list_for_each(it, &c->groups) {
90ec7b6e
CB		 3699 strprint(retv, inlen, "%s\n", (char *)it->elem);
3700 }
25a908b8 3701
90ec7b6e
CB		 3702 return fulllen;
3703}
aa0db7d3 3704
6bede808 3705static int get_config_environment(const char *key, char *retv, int inlen,
cccd2219 3706 struct lxc_conf *c, void *data)
aa0db7d3
CB		 3707{
3708 int len, fulllen = 0;
3709 struct lxc_list *it;
3710
3711 if (!retv)
3712 inlen = 0;
3713 else
3714 memset(retv, 0, inlen);
3715
6bede808 3716 lxc_list_for_each(it, &c->environment) {
aa0db7d3
CB		 3717 strprint(retv, inlen, "%s\n", (char *)it->elem);
3718 }
25a908b8 3719
aa0db7d3
CB		 3720 return fulllen;
3721}
96dfcb7d 3722
5cda27c1
SH		 3723static int get_config_execute_cmd(const char *key, char *retv, int inlen,
3724 struct lxc_conf *c, void *data)
3725{
3726 return lxc_get_conf_str(retv, inlen, c->execute_cmd);
3727}
3728
6bede808 3729static int get_config_init_cmd(const char *key, char *retv, int inlen,
cccd2219 3730 struct lxc_conf *c, void *data)
96dfcb7d 3731{
6bede808 3732 return lxc_get_conf_str(retv, inlen, c->init_cmd);
96dfcb7d 3733}
1398e9b1 3734
3c491553
L		 3735static int get_config_init_cwd(const char *key, char *retv, int inlen,
3736 struct lxc_conf *c, void *data)
3737{
3738 return lxc_get_conf_str(retv, inlen, c->init_cwd);
3739}
3740
6bede808 3741static int get_config_init_uid(const char *key, char *retv, int inlen,
cccd2219 3742 struct lxc_conf *c, void *data)
1398e9b1 3743{
6bede808 3744 return lxc_get_conf_int(c, retv, inlen, c->init_uid);
1398e9b1 3745}
dfeb7e42 3746
6bede808 3747static int get_config_init_gid(const char *key, char *retv, int inlen,
cccd2219 3748 struct lxc_conf *c, void *data)
dfeb7e42 3749{
6bede808 3750 return lxc_get_conf_int(c, retv, inlen, c->init_gid);
dfeb7e42 3751}
62048afe 3752
6bede808 3753static int get_config_ephemeral(const char *key, char *retv, int inlen,
cccd2219 3754 struct lxc_conf *c, void *data)
62048afe 3755{
6bede808 3756 return lxc_get_conf_int(c, retv, inlen, c->ephemeral);
62048afe 3757}
b09521ac 3758
6bede808 3759static int get_config_no_new_privs(const char *key, char *retv, int inlen,
cccd2219 3760 struct lxc_conf *c, void *data)
b09521ac 3761{
6bede808 3762 return lxc_get_conf_int(c, retv, inlen, c->no_new_privs);
b09521ac 3763}
389f6466 3764
25a908b8 3765/* If you ask for a specific value, i.e. lxc.prlimit.nofile, then just the value
240d4b74 3766 * will be printed. If you ask for 'lxc.prlimit', then all limit entries will be
3767 * printed, in 'lxc.prlimit.resource = value' format.
389f6466 3768 */
240d4b74 3769static int get_config_prlimit(const char *key, char *retv, int inlen,
47903908 3770 struct lxc_conf *c, void *data)
389f6466
CB		 3771{
3772 int fulllen = 0, len;
3773 bool get_all = false;
3774 struct lxc_list *it;
3775
3776 if (!retv)
3777 inlen = 0;
3778 else
3779 memset(retv, 0, inlen);
3780
240d4b74 3781 if (!strcmp(key, "lxc.prlimit"))
389f6466 3782 get_all = true;
240d4b74 3783 else if (strncmp(key, "lxc.prlimit.", 12) == 0)
3784 key += 12;
389f6466
CB		 3785 else
3786 return -1;
3787
6bede808 3788 lxc_list_for_each(it, &c->limits) {
c77aee64
CB		 3789 /* 2 colon separated 64 bit integers or the word 'unlimited' */
3790 char buf[INTTYPE_TO_STRLEN(uint64_t) * 2 + 2];
389f6466
CB		 3791 int partlen;
3792 struct lxc_limit *lim = it->elem;
3793
3794 if (lim->limit.rlim_cur == RLIM_INFINITY) {
6333c915
CB		 3795 memcpy(buf, "unlimited", STRLITERALLEN("unlimited") + 1);
3796 partlen = STRLITERALLEN("unlimited");
389f6466
CB		 3797 } else {
3798 partlen = sprintf(buf, "%" PRIu64,
3799 (uint64_t)lim->limit.rlim_cur);
3800 }
47903908 3801
389f6466 3802 if (lim->limit.rlim_cur != lim->limit.rlim_max) {
25a908b8 3803 if (lim->limit.rlim_max == RLIM_INFINITY)
389f6466 3804 memcpy(buf + partlen, ":unlimited",
6333c915 3805 STRLITERALLEN(":unlimited") + 1);
25a908b8 3806 else
389f6466
CB		 3807 sprintf(buf + partlen, ":%" PRIu64,
3808 (uint64_t)lim->limit.rlim_max);
389f6466
CB		 3809 }
3810
3811 if (get_all) {
240d4b74 3812 strprint(retv, inlen, "lxc.prlimit.%s = %s\n",
389f6466 3813 lim->resource, buf);
47903908 3814 } else if (strcmp(lim->resource, key) == 0) {
389f6466
CB		 3815 strprint(retv, inlen, "%s", buf);
3816 }
3817 }
3818
3819 return fulllen;
3820}
e08cb901 3821
e409b214
CB		 3822/* If you ask for a specific value, i.e. lxc.sysctl.net.ipv4.ip_forward, then
3823 * just the value will be printed. If you ask for 'lxc.sysctl', then all sysctl
3824 * entries will be printed, in 'lxc.sysctl.key = value' format.
7edd0540
L		 3825 */
3826static int get_config_sysctl(const char *key, char *retv, int inlen,
47903908 3827 struct lxc_conf *c, void *data)
7edd0540
L		 3828{
3829 int len;
3830 struct lxc_list *it;
3831 int fulllen = 0;
3832 bool get_all = false;
3833
3834 if (!retv)
3835 inlen = 0;
3836 else
3837 memset(retv, 0, inlen);
3838
3839 if (strcmp(key, "lxc.sysctl") == 0)
3840 get_all = true;
6333c915
CB		 3841 else if (strncmp(key, "lxc.sysctl.", STRLITERALLEN("lxc.sysctl.")) == 0)
3842 key += STRLITERALLEN("lxc.sysctl.");
7edd0540
L		 3843 else
3844 return -1;
3845
3846 lxc_list_for_each(it, &c->sysctls) {
3847 struct lxc_sysctl *elem = it->elem;
3848 if (get_all) {
47903908 3849 strprint(retv, inlen, "lxc.sysctl.%s = %s\n", elem->key,
3850 elem->value);
7edd0540
L		 3851 } else if (strcmp(elem->key, key) == 0) {
3852 strprint(retv, inlen, "%s", elem->value);
3853 }
3854 }
3855
3856 return fulllen;
3857}
3858
61d7a733 3859static int get_config_proc(const char *key, char *retv, int inlen,
47903908 3860 struct lxc_conf *c, void *data)
61d7a733
YT		 3861{
3862 struct lxc_list *it;
3863 int len;
3864 int fulllen = 0;
3865 bool get_all = false;
3866
3867 if (!retv)
3868 inlen = 0;
3869 else
3870 memset(retv, 0, inlen);
3871
3872 if (strcmp(key, "lxc.proc") == 0)
3873 get_all = true;
6333c915
CB		 3874 else if (strncmp(key, "lxc.proc.", STRLITERALLEN("lxc.proc.")) == 0)
3875 key += STRLITERALLEN("lxc.proc.");
61d7a733
YT		 3876 else
3877 return -1;
3878
3879 lxc_list_for_each(it, &c->procs) {
3880 struct lxc_proc *proc = it->elem;
3881
3882 if (get_all) {
3883 strprint(retv, inlen, "lxc.proc.%s = %s\n",
47903908 3884 proc->filename, proc->value);
61d7a733
YT		 3885 } else if (strcmp(proc->filename, key) == 0) {
3886 strprint(retv, inlen, "%s", proc->value);
3887 }
3888 }
3889
3890 return fulllen;
3891}
3892
1d8d3676
CB		 3893static int get_config_namespace_clone(const char *key, char *retv, int inlen,
3894 struct lxc_conf *c, void *data)
3895{
3896 int i, len;
3897 int fulllen = 0;
3898
3899 if (!retv)
3900 inlen = 0;
3901 else
3902 memset(retv, 0, inlen);
3903
3904 for (i = 0; i < LXC_NS_MAX; i++) {
3905 if (c->ns_clone & ns_info[i].clone_flag)
3906 strprint(retv, inlen, "%s\n", ns_info[i].proc_name);
3907 }
3908
3909 return fulllen;
3910}
3911
abeb5bba
CB		 3912static int get_config_namespace_keep(const char *key, char *retv, int inlen,
3913 struct lxc_conf *c, void *data)
3914{
3915 int i, len;
3916 int fulllen = 0;
3917
3918 if (!retv)
3919 inlen = 0;
3920 else
3921 memset(retv, 0, inlen);
3922
3923 for (i = 0; i < LXC_NS_MAX; i++) {
3924 if (c->ns_keep & ns_info[i].clone_flag)
3925 strprint(retv, inlen, "%s\n", ns_info[i].proc_name);
3926 }
3927
3928 return fulllen;
3929}
3930
b074bbf1
CB		 3931static int get_config_namespace_share(const char *key, char *retv, int inlen,
3932 struct lxc_conf *c, void *data)
28d9e29e
CB		 3933{
3934 int len, ns_idx;
3935 const char *namespace;
3936 int fulllen = 0;
3937
3938 if (!retv)
3939 inlen = 0;
3940 else
3941 memset(retv, 0, inlen);
3942
6333c915 3943 namespace = key + STRLITERALLEN("lxc.namespace.share.");
28d9e29e
CB		 3944 ns_idx = lxc_namespace_2_ns_idx(namespace);
3945 if (ns_idx < 0)
3946 return ns_idx;
3947
b074bbf1 3948 strprint(retv, inlen, "%s", c->ns_share[ns_idx]);
28d9e29e
CB		 3949
3950 return fulllen;
3951}
3952
e08cb901 3953/* Callbacks to clear config items. */
26471403
CB		 3954static inline int clr_config_personality(const char *key, struct lxc_conf *c,
3955 void *data)
e08cb901
CB		 3956{
3957 c->personality = -1;
3958 return 0;
3959}
03818ae3 3960
232763d6
CB		 3961static inline int clr_config_pty_max(const char *key, struct lxc_conf *c,
3962 void *data)
03818ae3 3963{
e528c735 3964 c->pty_max = 0;
03818ae3
CB		 3965 return 0;
3966}
e7a4b096 3967
fe1c5887
CB		 3968static inline int clr_config_tty_max(const char *key, struct lxc_conf *c,
3969 void *data)
e7a4b096 3970{
885766f5 3971 c->ttys.tty = 0;
e7a4b096
CB		 3972 return 0;
3973}
eaf8c0c7 3974
42e53c29 3975static inline int clr_config_tty_dir(const char *key, struct lxc_conf *c,
26471403 3976 void *data)
eaf8c0c7 3977{
885766f5
CB		 3978 free(c->ttys.dir);
3979 c->ttys.dir = NULL;
eaf8c0c7
CB		 3980 return 0;
3981}
6bd86308 3982
953fe44f
CB		 3983static inline int clr_config_apparmor_profile(const char *key,
3984 struct lxc_conf *c, void *data)
025718fb
CB		 3985{
3986 free(c->lsm_aa_profile);
3987 c->lsm_aa_profile = NULL;
3988 return 0;
3989}
3061e04e 3990
953fe44f
CB		 3991static inline int clr_config_apparmor_allow_incomplete(const char *key,
3992 struct lxc_conf *c,
3993 void *data)
3061e04e
CB		 3994{
3995 c->lsm_aa_allow_incomplete = 0;
3996 return 0;
3997}
31fc3494 3998
1800f924
WB		 3999static inline int clr_config_apparmor_allow_nesting(const char *key,
4000 struct lxc_conf *c,
4001 void *data)
4002{
4003 c->lsm_aa_allow_nesting = 0;
4004 return 0;
4005}
4006
4007static inline int clr_config_apparmor_raw(const char *key,
4008 struct lxc_conf *c,
4009 void *data)
4010{
4011 return lxc_clear_apparmor_raw(c);
4012}
4013
953fe44f
CB		 4014static inline int clr_config_selinux_context(const char *key,
4015 struct lxc_conf *c, void *data)
31fc3494
CB		 4016{
4017 free(c->lsm_se_context);
4018 c->lsm_se_context = NULL;
4019 return 0;
4020}
754d01ce 4021
43654d34
CB		 4022static inline int clr_config_cgroup_controller(const char *key,
4023 struct lxc_conf *c, void *data)
754d01ce 4024{
54860ed0
CB		 4025 return lxc_clear_cgroups(c, key, CGROUP_SUPER_MAGIC);
4026}
4027
4028static inline int clr_config_cgroup2_controller(const char *key,
4029 struct lxc_conf *c, void *data)
4030{
4031 return lxc_clear_cgroups(c, key, CGROUP2_SUPER_MAGIC);
754d01ce 4032}
d3a178de 4033
43654d34
CB		 4034static int clr_config_cgroup_dir(const char *key, struct lxc_conf *lxc_conf,
4035 void *data)
4036{
4037 if (lxc_conf->cgroup_meta.dir) {
4038 free(lxc_conf->cgroup_meta.dir);
4039 lxc_conf->cgroup_meta.dir = NULL;
4040 }
4041
4042 return 0;
4043}
4044
9caee129
CB		 4045static inline int clr_config_cgroup_relative(const char *key,
4046 struct lxc_conf *lxc_conf,
4047 void *data)
76f0e2e7 4048{
9caee129 4049 lxc_conf->cgroup_meta.relative = false;
76f0e2e7
CB		 4050 return 0;
4051}
4052
26471403
CB		 4053static inline int clr_config_idmaps(const char *key, struct lxc_conf *c,
4054 void *data)
d3a178de
CB		 4055{
4056 return lxc_clear_idmaps(c);
4057}
97d3338d 4058
46cc906d 4059static inline int clr_config_log_level(const char *key, struct lxc_conf *c,
26471403 4060 void *data)
97d3338d 4061{
4b73005c 4062 c->loglevel = LXC_LOG_LEVEL_NOTSET;
97d3338d
CB		 4063 return 0;
4064}
de46099c 4065
46cc906d 4066static inline int clr_config_log_file(const char *key, struct lxc_conf *c,
26471403 4067 void *data)
de46099c
CB		 4068{
4069 free(c->logfile);
4070 c->logfile = NULL;
4071 return 0;
4072}
b4fa13cd 4073
26471403
CB		 4074static inline int clr_config_mount(const char *key, struct lxc_conf *c,
4075 void *data)
b4fa13cd
CB		 4076{
4077 return lxc_clear_mount_entries(c);
4078}
4be81021 4079
26471403
CB		 4080static inline int clr_config_mount_auto(const char *key, struct lxc_conf *c,
4081 void *data)
4be81021
CB		 4082{
4083 return lxc_clear_automounts(c);
4084}
350d4b15 4085
47148e96
CB		 4086static inline int clr_config_mount_fstab(const char *key, struct lxc_conf *c,
4087 void *data)
350d4b15
CB		 4088{
4089 free(c->fstab);
4090 c->fstab = NULL;
4091 return 0;
4092}
faca124d 4093
7a96a068
CB		 4094static inline int clr_config_rootfs_path(const char *key, struct lxc_conf *c,
4095 void *data)
faca124d
CB		 4096{
4097 free(c->rootfs.path);
4098 c->rootfs.path = NULL;
4099 return 0;
4100}
4101
6e54330c
CB		 4102static inline int clr_config_rootfs_managed(const char *key, struct lxc_conf *c,
4103 void *data)
4104{
4105 c->rootfs.managed = true;
4106 return 0;
4107}
4108
26471403
CB		 4109static inline int clr_config_rootfs_mount(const char *key, struct lxc_conf *c,
4110 void *data)
fddefc2d
CB		 4111{
4112 free(c->rootfs.mount);
4113 c->rootfs.mount = NULL;
4114 return 0;
4115}
7b1eb67d 4116
26471403
CB		 4117static inline int clr_config_rootfs_options(const char *key, struct lxc_conf *c,
4118 void *data)
7b1eb67d
CB		 4119{
4120 free(c->rootfs.options);
4121 c->rootfs.options = NULL;
3437f95c
CB		 4122
4123 free(c->rootfs.data);
4124 c->rootfs.data = NULL;
4125
7b1eb67d
CB		 4126 return 0;
4127}
02becb8d 4128
b67771bc 4129static inline int clr_config_uts_name(const char *key, struct lxc_conf *c,
26471403 4130 void *data)
d31d0103
CB		 4131{
4132 free(c->utsname);
4133 c->utsname = NULL;
4134 return 0;
4135}
c9eeb90c 4136
26471403
CB		 4137static inline int clr_config_hooks(const char *key, struct lxc_conf *c,
4138 void *data)
c9eeb90c
CB		 4139{
4140 return lxc_clear_hooks(c, key);
4141}
4142
44ae0fb6
CB		 4143static inline int clr_config_hooks_version(const char *key, struct lxc_conf *c,
4144 void *data)
4145{
4146 /* default to legacy hooks version */
4147 c->hooks_version = 0;
4148 return 0;
4149}
4150
f9373e40
CB		 4151static inline int clr_config_net(const char *key, struct lxc_conf *c,
4152 void *data)
f4488271 4153{
c302b476
CB		 4154 lxc_free_networks(&c->network);
4155
e5d2fd7c 4156 return 0;
f4488271
CB		 4157}
4158
26471403
CB		 4159static inline int clr_config_cap_drop(const char *key, struct lxc_conf *c,
4160 void *data)
244cb55b
CB		 4161{
4162 return lxc_clear_config_caps(c);
4163}
c74cc490 4164
26471403
CB		 4165static inline int clr_config_cap_keep(const char *key, struct lxc_conf *c,
4166 void *data)
c74cc490
CB		 4167{
4168 return lxc_clear_config_keepcaps(c);
4169}
4e5b633f 4170
3aed4934
CB		 4171static inline int clr_config_console_path(const char *key, struct lxc_conf *c,
4172 void *data)
4e5b633f
CB		 4173{
4174 free(c->console.path);
4175 c->console.path = NULL;
4176 return 0;
4177}
4178
7c2ec23a 4179static inline int clr_config_console_logfile(const char *key,
26471403 4180 struct lxc_conf *c, void *data)
7c2ec23a
CB		 4181{
4182 free(c->console.log_path);
4183 c->console.log_path = NULL;
4184 return 0;
4185}
bbca37d8 4186
d91adfa6
CB		 4187static inline int clr_config_console_rotate(const char *key, struct lxc_conf *c,
4188 void *data)
4189{
4190 c->console.log_rotate = 0;
4191 return 0;
4192}
4193
28f3b1cd
CB		 4194static inline int clr_config_console_buffer_size(const char *key,
4195 struct lxc_conf *c, void *data)
a04220de 4196{
28f3b1cd 4197 c->console.buffer_size = 0;
a04220de
CB		 4198 return 0;
4199}
4200
861813e5
CB		 4201static inline int clr_config_console_size(const char *key, struct lxc_conf *c,
4202 void *data)
4203{
4204 c->console.log_size = 0;
4205 return 0;
4206}
4207
0b427da0
CB		 4208static inline int clr_config_seccomp_profile(const char *key,
4209 struct lxc_conf *c, void *data)
bbca37d8
CB		 4210{
4211 free(c->seccomp);
4212 c->seccomp = NULL;
4213 return 0;
4214}
c721e86c 4215
26471403
CB		 4216static inline int clr_config_autodev(const char *key, struct lxc_conf *c,
4217 void *data)
c721e86c
CB		 4218{
4219 c->autodev = 1;
4220 return 0;
4221}
87b288d1 4222
55c84efc 4223static inline int clr_config_signal_halt(const char *key, struct lxc_conf *c,
26471403 4224 void *data)
87b288d1
CB		 4225{
4226 c->haltsignal = 0;
4227 return 0;
4228}
cae63cfa 4229
55c84efc 4230static inline int clr_config_signal_reboot(const char *key, struct lxc_conf *c,
26471403 4231 void *data)
cae63cfa
CB		 4232{
4233 c->rebootsignal = 0;
4234 return 0;
4235}
de45f3a8 4236
55c84efc 4237static inline int clr_config_signal_stop(const char *key, struct lxc_conf *c,
26471403 4238 void *data)
de45f3a8
CB		 4239{
4240 c->stopsignal = 0;
4241 return 0;
4242}
c6182222 4243
26471403
CB		 4244static inline int clr_config_start(const char *key, struct lxc_conf *c,
4245 void *data)
c6182222
CB		 4246{
4247 if (strcmp(key + 10, "auto") == 0)
4248 c->start_auto = 0;
4249 else if (strcmp(key + 10, "delay") == 0)
4250 c->start_delay = 0;
4251 else if (strcmp(key + 10, "order") == 0)
4252 c->start_order = 0;
4253
4254 return 0;
4255}
998ca94f 4256
46cc906d 4257static inline int clr_config_log_syslog(const char *key, struct lxc_conf *c,
26471403 4258 void *data)
998ca94f
CB		 4259{
4260 free(c->syslog);
4261 c->syslog = NULL;
4262 return 0;
4263}
adad12ca 4264
26471403
CB		 4265static inline int clr_config_monitor(const char *key, struct lxc_conf *c,
4266 void *data)
adad12ca
CB		 4267{
4268 c->monitor_unshare = 0;
4269 return 0;
4270}
4850d223 4271
258f8051
CB		 4272static inline int clr_config_monitor_signal_pdeath(const char *key,
4273 struct lxc_conf *c, void *data)
4274{
4275 c->monitor_signal_pdeath = 0;
4276 return 0;
4277}
4278
26471403
CB		 4279static inline int clr_config_group(const char *key, struct lxc_conf *c,
4280 void *data)
4850d223
CB		 4281{
4282 return lxc_clear_groups(c);
4283}
832fb63a 4284
26471403
CB		 4285static inline int clr_config_environment(const char *key, struct lxc_conf *c,
4286 void *data)
832fb63a
CB		 4287{
4288 return lxc_clear_environment(c);
4850d223 4289}
8e90af3e 4290
5cda27c1
SH		 4291static inline int clr_config_execute_cmd(const char *key, struct lxc_conf *c,
4292 void *data)
4293{
4294 free(c->execute_cmd);
4295 c->execute_cmd = NULL;
4296 return 0;
4297}
4298
26471403
CB		 4299static inline int clr_config_init_cmd(const char *key, struct lxc_conf *c,
4300 void *data)
8e90af3e
CB		 4301{
4302 free(c->init_cmd);
4303 c->init_cmd = NULL;
4304 return 0;
4305}
ec76dcfb 4306
3c491553
L		 4307static inline int clr_config_init_cwd(const char *key, struct lxc_conf *c,
4308 void *data)
4309{
4310 free(c->init_cwd);
4311 c->init_cwd = NULL;
4312 return 0;
4313}
4314
26471403
CB		 4315static inline int clr_config_init_uid(const char *key, struct lxc_conf *c,
4316 void *data)
ec76dcfb
CB		 4317{
4318 c->init_uid = 0;
4319 return 0;
4320}
1044b247 4321
26471403
CB		 4322static inline int clr_config_init_gid(const char *key, struct lxc_conf *c,
4323 void *data)
1044b247
CB		 4324{
4325 c->init_gid = 0;
4326 return 0;
4327}
59e370db 4328
26471403
CB		 4329static inline int clr_config_ephemeral(const char *key, struct lxc_conf *c,
4330 void *data)
59e370db
CB		 4331{
4332 c->ephemeral = 0;
4333 return 0;
4334}
b98c5ab0 4335
26471403
CB		 4336static inline int clr_config_no_new_privs(const char *key, struct lxc_conf *c,
4337 void *data)
b98c5ab0
CB		 4338{
4339 c->no_new_privs = false;
4340 return 0;
4341}
715ccc96 4342
240d4b74 4343static inline int clr_config_prlimit(const char *key, struct lxc_conf *c,
26471403 4344 void *data)
715ccc96
CB		 4345{
4346 return lxc_clear_limits(c, key);
4347}
fdf3c589 4348
7edd0540
L		 4349static inline int clr_config_sysctl(const char *key, struct lxc_conf *c,
4350 void *data)
4351{
4352 return lxc_clear_sysctls(c, key);
4353}
4354
61d7a733
YT		 4355static inline int clr_config_proc(const char *key, struct lxc_conf *c,
4356 void *data)
4357{
4358 return lxc_clear_procs(c, key);
4359}
4360
26471403
CB		 4361static inline int clr_config_includefiles(const char *key, struct lxc_conf *c,
4362 void *data)
fdf3c589
CB		 4363{
4364 lxc_clear_includes(c);
4365 return 0;
4366}
a3c8e600 4367
1d8d3676
CB		 4368static int clr_config_namespace_clone(const char *key,
4369 struct lxc_conf *lxc_conf, void *data)
4370{
4371 lxc_conf->ns_clone = 0;
4372 return 0;
4373}
4374
abeb5bba
CB		 4375static int clr_config_namespace_keep(const char *key, struct lxc_conf *lxc_conf,
4376 void *data)
4377{
4378 lxc_conf->ns_keep = 0;
4379 return 0;
4380}
4381
b074bbf1
CB		 4382static int clr_config_namespace_share(const char *key,
4383 struct lxc_conf *lxc_conf, void *data)
28d9e29e
CB		 4384{
4385 int ns_idx;
4386 const char *namespace;
4387
6333c915 4388 namespace = key + STRLITERALLEN("lxc.namespace.share.");
28d9e29e
CB		 4389 ns_idx = lxc_namespace_2_ns_idx(namespace);
4390 if (ns_idx < 0)
4391 return ns_idx;
4392
b074bbf1
CB		 4393 free(lxc_conf->ns_share[ns_idx]);
4394 lxc_conf->ns_share[ns_idx] = NULL;
28d9e29e
CB		 4395
4396 return 0;
4397}
4398
a3c8e600 4399static int get_config_includefiles(const char *key, char *retv, int inlen,
cccd2219 4400 struct lxc_conf *c, void *data)
a3c8e600
CB		 4401{
4402 return -ENOSYS;
4403}
40db5d2f 4404
31ee747b
CB		 4405static struct lxc_config_t *get_network_config_ops(const char *key,
4406 struct lxc_conf *lxc_conf,
4407 ssize_t *idx,
4408 char **deindexed_key)
40db5d2f 4409{
31ee747b
CB		 4410 int ret;
4411 unsigned int tmpidx;
4412 size_t numstrlen;
40db5d2f
CB		 4413 char *copy, *idx_start, *idx_end;
4414 struct lxc_config_t *config = NULL;
4415
4416 /* check that this is a sensible network key */
31ee747b
CB		 4417 if (strncmp("lxc.net.", key, 8)) {
4418 ERROR("Invalid network configuration key \"%s\"", key);
40db5d2f 4419 return NULL;
31ee747b 4420 }
40db5d2f
CB		 4421
4422 copy = strdup(key);
31ee747b
CB		 4423 if (!copy) {
4424 ERROR("Failed to duplicate string \"%s\"", key);
40db5d2f 4425 return NULL;
31ee747b 4426 }
40db5d2f 4427
f9373e40 4428 /* lxc.net.<n> */
31ee747b
CB		 4429 if (!isdigit(*(key + 8))) {
4430 ERROR("Failed to detect digit in string \"%s\"", key + 8);
4431 goto on_error;
4432 }
40db5d2f 4433
31ee747b
CB		 4434 /* beginning of index string */
4435 idx_start = (copy + 7);
4436 *idx_start = '\0';
40db5d2f 4437
31ee747b
CB		 4438 /* end of index string */
4439 idx_end = strchr((copy + 8), '.');
7451daf8
CB		 4440 if (idx_end)
4441 *idx_end = '\0';
31ee747b
CB		 4442
4443 /* parse current index */
4444 ret = lxc_safe_uint((idx_start + 1), &tmpidx);
4445 if (ret < 0) {
6d1400b5 4446 errno = -ret;
ae52f396 4447 SYSERROR("Failed to parse unsigned integer from string \"%s\"",
6d1400b5 4448 idx_start + 1);
31ee747b
CB		 4449 *idx = ret;
4450 goto on_error;
4451 }
40db5d2f 4452
31ee747b
CB		 4453 /* This, of course is utterly nonsensical on so many levels, but
4454 * better safe than sorry.
4455 * (Checking for INT_MAX here is intentional.)
4456 */
4457 if (tmpidx == INT_MAX) {
25a908b8 4458 SYSERROR("Number of configured networks would overflow the "
47903908 4459 "counter");
31ee747b 4460 goto on_error;
40db5d2f 4461 }
31ee747b
CB		 4462 *idx = tmpidx;
4463
4464 numstrlen = strlen((idx_start + 1));
4465
4466 /* repair configuration key */
4467 *idx_start = '.';
31ee747b 4468
7451daf8
CB		 4469 /* lxc.net.<idx>.<subkey> */
4470 if (idx_end) {
4471 *idx_end = '.';
24fa7df6
FA		 4472 if (strlen(idx_end + 1) == 0) {
4473 ERROR("No subkey in network configuration key \"%s\"", key);
4474 goto on_error;
4475 }
40db5d2f 4476
7451daf8
CB		 4477 memmove(copy + 8, idx_end + 1, strlen(idx_end + 1));
4478 copy[strlen(key) - numstrlen + 1] = '\0';
4479
300df83e 4480 config = lxc_get_config(copy);
7451daf8 4481 if (!config) {
25a908b8 4482 ERROR("Unknown network configuration key \"%s\"", key);
7451daf8
CB		 4483 goto on_error;
4484 }
31ee747b
CB		 4485 }
4486
7451daf8
CB		 4487 if (deindexed_key)
4488 *deindexed_key = copy;
4489
31ee747b 4490 return config;
40db5d2f
CB		 4491
4492on_error:
4493 free(copy);
31ee747b 4494 return NULL;
40db5d2f
CB		 4495}
4496
25a908b8
CB		 4497/* Config entry is something like "lxc.net.0.ipv4" the key 'lxc.net.' was
4498 * found. So we make sure next comes an integer, find the right callback (by
4499 * rewriting the key), and call it.
40db5d2f 4500 */
f9373e40
CB		 4501static int set_config_net_nic(const char *key, const char *value,
4502 struct lxc_conf *lxc_conf, void *data)
40db5d2f 4503{
31ee747b
CB		 4504 int ret;
4505 const char *idxstring;
40db5d2f
CB		 4506 struct lxc_config_t *config;
4507 struct lxc_netdev *netdev;
4508 ssize_t idx = -1;
31ee747b
CB		 4509 char *deindexed_key = NULL;
4510
4511 idxstring = key + 8;
4512 if (!isdigit(*idxstring))
4513 return -1;
40db5d2f 4514
6bed0fb6 4515 if (lxc_config_value_empty(value))
f9373e40 4516 return clr_config_net_nic(key, lxc_conf, data);
6bed0fb6 4517
31ee747b 4518 config = get_network_config_ops(key, lxc_conf, &idx, &deindexed_key);
40db5d2f
CB		 4519 if (!config || idx < 0)
4520 return -1;
4521
0070b1c4 4522 netdev = lxc_get_netdev_by_idx(lxc_conf, (unsigned int)idx, true);
31ee747b
CB		 4523 if (!netdev) {
4524 free(deindexed_key);
40db5d2f 4525 return -1;
31ee747b 4526 }
40db5d2f 4527
31ee747b
CB		 4528 ret = config->set(deindexed_key, value, lxc_conf, netdev);
4529 free(deindexed_key);
47903908 4530
31ee747b 4531 return ret;
40db5d2f 4532}
ff6da295 4533
f9373e40
CB		 4534static int clr_config_net_nic(const char *key, struct lxc_conf *lxc_conf,
4535 void *data)
ff6da295 4536{
31ee747b 4537 int ret;
519df1c1 4538 const char *idxstring;
ff6da295
CB		 4539 struct lxc_config_t *config;
4540 struct lxc_netdev *netdev;
31ee747b
CB		 4541 ssize_t idx = -1;
4542 char *deindexed_key = NULL;
519df1c1 4543
31ee747b
CB		 4544 idxstring = key + 8;
4545 if (!isdigit(*idxstring))
519df1c1
CB		 4546 return -1;
4547
519df1c1 4548 /* The left conjunct is pretty self-explanatory. The right conjunct
31ee747b 4549 * checks whether the two pointers are equal. If they are we know that
519df1c1
CB		 4550 * this is not a key that is namespaced any further and so we are
4551 * supposed to clear the whole network.
4552 */
4553 if (isdigit(*idxstring) && (strrchr(key, '.') == (idxstring - 1))) {
4554 unsigned int rmnetdevidx;
4555
4556 if (lxc_safe_uint(idxstring, &rmnetdevidx) < 0)
4557 return -1;
4558
4559 /* Remove network from network list. */
4560 lxc_remove_nic_by_idx(lxc_conf, rmnetdevidx);
4561 return 0;
4562 }
ff6da295 4563
31ee747b 4564 config = get_network_config_ops(key, lxc_conf, &idx, &deindexed_key);
ff6da295
CB		 4565 if (!config || idx < 0)
4566 return -1;
4567
0070b1c4 4568 netdev = lxc_get_netdev_by_idx(lxc_conf, (unsigned int)idx, false);
31ee747b
CB		 4569 if (!netdev) {
4570 free(deindexed_key);
ff6da295 4571 return -1;
31ee747b 4572 }
ff6da295 4573
31ee747b
CB		 4574 ret = config->clr(deindexed_key, lxc_conf, netdev);
4575 free(deindexed_key);
47903908 4576
31ee747b 4577 return ret;
ff6da295
CB		 4578}
4579
f9373e40
CB		 4580static int clr_config_net_type(const char *key, struct lxc_conf *lxc_conf,
4581 void *data)
ff6da295 4582{
070a05af 4583 struct lxc_netdev *netdev = data;
ff6da295 4584
ff6da295
CB		 4585 if (!netdev)
4586 return -1;
4587
4588 netdev->type = -1;
4589
4590 return 0;
4591}
4592
f9373e40
CB		 4593static int clr_config_net_name(const char *key, struct lxc_conf *lxc_conf,
4594 void *data)
ff6da295 4595{
070a05af 4596 struct lxc_netdev *netdev = data;
ff6da295 4597
ff6da295
CB		 4598 if (!netdev)
4599 return -1;
4600
de4855a8 4601 netdev->name[0] = '\0';
ff6da295
CB		 4602
4603 return 0;
4604}
4605
f9373e40
CB		 4606static int clr_config_net_flags(const char *key, struct lxc_conf *lxc_conf,
4607 void *data)
ff6da295 4608{
070a05af 4609 struct lxc_netdev *netdev = data;
ff6da295 4610
ff6da295
CB		 4611 if (!netdev)
4612 return -1;
4613
4614 netdev->flags = 0;
4615
4616 return 0;
4617}
4618
f9373e40
CB		 4619static int clr_config_net_link(const char *key, struct lxc_conf *lxc_conf,
4620 void *data)
ff6da295 4621{
070a05af 4622 struct lxc_netdev *netdev = data;
ff6da295 4623
ff6da295
CB		 4624 if (!netdev)
4625 return -1;
4626
de4855a8 4627 netdev->link[0] = '\0';
ff6da295
CB		 4628
4629 return 0;
4630}
4631
f9373e40
CB		 4632static int clr_config_net_macvlan_mode(const char *key,
4633 struct lxc_conf *lxc_conf, void *data)
ff6da295 4634{
070a05af 4635 struct lxc_netdev *netdev = data;
ff6da295 4636
ff6da295
CB		 4637 if (!netdev)
4638 return -1;
4639
6bed0fb6
CB		 4640 if (netdev->type != LXC_NET_MACVLAN)
4641 return 0;
4642
ff6da295
CB		 4643 netdev->priv.macvlan_attr.mode = -1;
4644
4645 return 0;
4646}
4647
f9373e40
CB		 4648static int clr_config_net_veth_pair(const char *key, struct lxc_conf *lxc_conf,
4649 void *data)
ff6da295 4650{
070a05af 4651 struct lxc_netdev *netdev = data;
ff6da295 4652
ff6da295
CB		 4653 if (!netdev)
4654 return -1;
4655
de4855a8 4656 netdev->priv.veth_attr.pair[0] = '\0';
ff6da295
CB		 4657
4658 return 0;
4659}
4660
f9373e40
CB		 4661static int clr_config_net_script_up(const char *key, struct lxc_conf *lxc_conf,
4662 void *data)
ff6da295 4663{
070a05af 4664 struct lxc_netdev *netdev = data;
ff6da295 4665
ff6da295
CB		 4666 if (!netdev)
4667 return -1;
4668
4669 free(netdev->upscript);
4670 netdev->upscript = NULL;
4671
4672 return 0;
4673}
4674
f9373e40
CB		 4675static int clr_config_net_script_down(const char *key,
4676 struct lxc_conf *lxc_conf, void *data)
ff6da295 4677{
070a05af 4678 struct lxc_netdev *netdev = data;
ff6da295 4679
ff6da295
CB		 4680 if (!netdev)
4681 return -1;
4682
4683 free(netdev->downscript);
4684 netdev->downscript = NULL;
4685
4686 return 0;
4687}
4688
f9373e40
CB		 4689static int clr_config_net_hwaddr(const char *key, struct lxc_conf *lxc_conf,
4690 void *data)
ff6da295 4691{
070a05af 4692 struct lxc_netdev *netdev = data;
ff6da295 4693
ff6da295
CB		 4694 if (!netdev)
4695 return -1;
4696
4697 free(netdev->hwaddr);
4698 netdev->hwaddr = NULL;
4699
4700 return 0;
4701}
4702
f9373e40
CB		 4703static int clr_config_net_mtu(const char *key, struct lxc_conf *lxc_conf,
4704 void *data)
ff6da295 4705{
070a05af 4706 struct lxc_netdev *netdev = data;
ff6da295 4707
ff6da295
CB		 4708 if (!netdev)
4709 return -1;
4710
4711 free(netdev->mtu);
4712 netdev->mtu = NULL;
4713
4714 return 0;
4715}
4716
f9373e40
CB		 4717static int clr_config_net_vlan_id(const char *key, struct lxc_conf *lxc_conf,
4718 void *data)
ff6da295 4719{
070a05af 4720 struct lxc_netdev *netdev = data;
ff6da295 4721
ff6da295
CB		 4722 if (!netdev)
4723 return -1;
4724
4725 netdev->priv.vlan_attr.vid = 0;
4726
4727 return 0;
4728}
4729
f9373e40
CB		 4730static int clr_config_net_ipv4_gateway(const char *key,
4731 struct lxc_conf *lxc_conf, void *data)
ff6da295 4732{
070a05af 4733 struct lxc_netdev *netdev = data;
ff6da295 4734
ff6da295
CB		 4735 if (!netdev)
4736 return -1;
4737
4738 free(netdev->ipv4_gateway);
4739 netdev->ipv4_gateway = NULL;
4740
4741 return 0;
4742}
4743
9ff60df2
CB		 4744static int clr_config_net_ipv4_address(const char *key,
4745 struct lxc_conf *lxc_conf, void *data)
ff6da295 4746{
070a05af 4747 struct lxc_netdev *netdev = data;
ff6da295
CB		 4748 struct lxc_list *cur, *next;
4749
ecbb3790
CB		 4750 if (!netdev)
4751 return -1;
ff6da295
CB		 4752
4753 lxc_list_for_each_safe(cur, &netdev->ipv4, next) {
4754 lxc_list_del(cur);
4755 free(cur->elem);
4756 free(cur);
4757 }
4758
4759 return 0;
4760}
4761
f9373e40
CB		 4762static int clr_config_net_ipv6_gateway(const char *key,
4763 struct lxc_conf *lxc_conf, void *data)
ff6da295 4764{
070a05af 4765 struct lxc_netdev *netdev = data;
ff6da295 4766
ff6da295
CB		 4767 if (!netdev)
4768 return -1;
4769
4770 free(netdev->ipv6_gateway);
4771 netdev->ipv6_gateway = NULL;
4772
4773 return 0;
4774}
4775
2e44ae28
CB		 4776static int clr_config_net_ipv6_address(const char *key,
4777 struct lxc_conf *lxc_conf, void *data)
ff6da295 4778{
070a05af 4779 struct lxc_netdev *netdev = data;
ff6da295
CB		 4780 struct lxc_list *cur, *next;
4781
ecbb3790
CB		 4782 if (!netdev)
4783 return -1;
ff6da295
CB		 4784
4785 lxc_list_for_each_safe(cur, &netdev->ipv6, next) {
4786 lxc_list_del(cur);
4787 free(cur->elem);
4788 free(cur);
4789 }
4790
4791 return 0;
4792}
9d4bf22d 4793
f9373e40
CB		 4794static int get_config_net_nic(const char *key, char *retv, int inlen,
4795 struct lxc_conf *c, void *data)
9d4bf22d 4796{
31ee747b
CB		 4797 int ret;
4798 const char *idxstring;
9d4bf22d
CB		 4799 struct lxc_config_t *config;
4800 struct lxc_netdev *netdev;
4801 ssize_t idx = -1;
31ee747b 4802 char *deindexed_key = NULL;
9d4bf22d 4803
31ee747b
CB		 4804 idxstring = key + 8;
4805 if (!isdigit(*idxstring))
4806 return -1;
4807
4808 config = get_network_config_ops(key, c, &idx, &deindexed_key);
9d4bf22d
CB		 4809 if (!config || idx < 0)
4810 return -1;
4811
0070b1c4 4812 netdev = lxc_get_netdev_by_idx(c, (unsigned int)idx, false);
31ee747b
CB		 4813 if (!netdev) {
4814 free(deindexed_key);
9d4bf22d 4815 return -1;
31ee747b 4816 }
9d4bf22d 4817
31ee747b
CB		 4818 ret = config->get(deindexed_key, retv, inlen, c, netdev);
4819 free(deindexed_key);
47903908 4820
31ee747b 4821 return ret;
9d4bf22d
CB		 4822}
4823
f9373e40
CB		 4824static int get_config_net_type(const char *key, char *retv, int inlen,
4825 struct lxc_conf *c, void *data)
9d4bf22d 4826{
070a05af
CB		 4827 int len;
4828 int fulllen = 0;
4829 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4830
4831 if (!retv)
4832 inlen = 0;
4833 else
4834 memset(retv, 0, inlen);
4835
9d4bf22d
CB		 4836 if (!netdev)
4837 return -1;
4838
4839 strprint(retv, inlen, "%s", lxc_net_type_to_str(netdev->type));
4840
4841 return fulllen;
4842}
4843
f9373e40
CB		 4844static int get_config_net_flags(const char *key, char *retv, int inlen,
4845 struct lxc_conf *c, void *data)
9d4bf22d 4846{
070a05af
CB		 4847 int len;
4848 int fulllen = 0;
4849 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4850
4851 if (!retv)
4852 inlen = 0;
4853 else
4854 memset(retv, 0, inlen);
4855
9d4bf22d
CB		 4856 if (!netdev)
4857 return -1;
4858
4859 if (netdev->flags & IFF_UP)
4860 strprint(retv, inlen, "up");
4861
4862 return fulllen;
4863}
4864
f9373e40
CB		 4865static int get_config_net_link(const char *key, char *retv, int inlen,
4866 struct lxc_conf *c, void *data)
9d4bf22d 4867{
070a05af
CB		 4868 int len;
4869 int fulllen = 0;
4870 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4871
4872 if (!retv)
4873 inlen = 0;
4874 else
4875 memset(retv, 0, inlen);
4876
9d4bf22d
CB		 4877 if (!netdev)
4878 return -1;
4879
de4855a8 4880 if (netdev->link[0] != '\0')
9d4bf22d
CB		 4881 strprint(retv, inlen, "%s", netdev->link);
4882
4883 return fulllen;
4884}
4885
f9373e40
CB		 4886static int get_config_net_name(const char *key, char *retv, int inlen,
4887 struct lxc_conf *c, void *data)
9d4bf22d 4888{
070a05af
CB		 4889 int len;
4890 int fulllen = 0;
4891 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4892
4893 if (!retv)
4894 inlen = 0;
4895 else
4896 memset(retv, 0, inlen);
4897
9d4bf22d
CB		 4898 if (!netdev)
4899 return -1;
4900
de4855a8 4901 if (netdev->name[0] != '\0')
9d4bf22d
CB		 4902 strprint(retv, inlen, "%s", netdev->name);
4903
4904 return fulllen;
4905}
4906
f9373e40
CB		 4907static int get_config_net_macvlan_mode(const char *key, char *retv, int inlen,
4908 struct lxc_conf *c, void *data)
9d4bf22d 4909{
070a05af
CB		 4910 int len;
4911 int fulllen = 0;
9d4bf22d 4912 const char *mode;
070a05af 4913 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4914
4915 if (!retv)
4916 inlen = 0;
4917 else
4918 memset(retv, 0, inlen);
4919
9d4bf22d
CB		 4920 if (!netdev)
4921 return -1;
4922
4923 if (netdev->type != LXC_NET_MACVLAN)
4924 return 0;
4925
4926 switch (netdev->priv.macvlan_attr.mode) {
4927 case MACVLAN_MODE_PRIVATE:
4928 mode = "private";
4929 break;
4930 case MACVLAN_MODE_VEPA:
4931 mode = "vepa";
4932 break;
4933 case MACVLAN_MODE_BRIDGE:
4934 mode = "bridge";
4935 break;
4936 case MACVLAN_MODE_PASSTHRU:
4937 mode = "passthru";
4938 break;
4939 default:
4940 mode = "(invalid)";
4941 break;
4942 }
4943
4944 strprint(retv, inlen, "%s", mode);
4945
4946 return fulllen;
4947}
4948
f9373e40
CB		 4949static int get_config_net_veth_pair(const char *key, char *retv, int inlen,
4950 struct lxc_conf *c, void *data)
9d4bf22d 4951{
070a05af
CB		 4952 int len;
4953 int fulllen = 0;
4954 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4955
4956 if (!retv)
4957 inlen = 0;
4958 else
4959 memset(retv, 0, inlen);
4960
9d4bf22d
CB		 4961 if (!netdev)
4962 return -1;
4963
4964 if (netdev->type != LXC_NET_VETH)
4965 return 0;
4966
4967 strprint(retv, inlen, "%s",
de4855a8
CB		 4968 netdev->priv.veth_attr.pair[0] != '\0'
4969 ? netdev->priv.veth_attr.pair
4970 : netdev->priv.veth_attr.veth1);
9d4bf22d
CB		 4971
4972 return fulllen;
4973}
4974
f9373e40
CB		 4975static int get_config_net_script_up(const char *key, char *retv, int inlen,
4976 struct lxc_conf *c, void *data)
9d4bf22d 4977{
070a05af
CB		 4978 int len;
4979 int fulllen = 0;
4980 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 4981
4982 if (!retv)
4983 inlen = 0;
4984 else
4985 memset(retv, 0, inlen);
4986
9d4bf22d
CB		 4987 if (!netdev)
4988 return -1;
4989
4990 if (netdev->upscript)
4991 strprint(retv, inlen, "%s", netdev->upscript);
4992
4993 return fulllen;
4994}
4995
f9373e40
CB		 4996static int get_config_net_script_down(const char *key, char *retv, int inlen,
4997 struct lxc_conf *c, void *data)
9d4bf22d 4998{
070a05af
CB		 4999 int len;
5000 int fulllen = 0;
5001 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5002
5003 if (!retv)
5004 inlen = 0;
5005 else
5006 memset(retv, 0, inlen);
5007
9d4bf22d
CB		 5008 if (!netdev)
5009 return -1;
5010
5011 if (netdev->downscript)
5012 strprint(retv, inlen, "%s", netdev->downscript);
5013
5014 return fulllen;
5015}
5016
f9373e40
CB		 5017static int get_config_net_hwaddr(const char *key, char *retv, int inlen,
5018 struct lxc_conf *c, void *data)
9d4bf22d 5019{
070a05af
CB		 5020 int len;
5021 int fulllen = 0;
5022 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5023
5024 if (!retv)
5025 inlen = 0;
5026 else
5027 memset(retv, 0, inlen);
5028
9d4bf22d
CB		 5029 if (!netdev)
5030 return -1;
5031
5032 if (netdev->hwaddr)
5033 strprint(retv, inlen, "%s", netdev->hwaddr);
5034
5035 return fulllen;
5036}
5037
f9373e40
CB		 5038static int get_config_net_mtu(const char *key, char *retv, int inlen,
5039 struct lxc_conf *c, void *data)
9d4bf22d 5040{
070a05af
CB		 5041 int len;
5042 int fulllen = 0;
5043 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5044
5045 if (!retv)
5046 inlen = 0;
5047 else
5048 memset(retv, 0, inlen);
5049
9d4bf22d
CB		 5050 if (!netdev)
5051 return -1;
5052
5053 if (netdev->mtu)
5054 strprint(retv, inlen, "%s", netdev->mtu);
5055
5056 return fulllen;
5057}
5058
f9373e40
CB		 5059static int get_config_net_vlan_id(const char *key, char *retv, int inlen,
5060 struct lxc_conf *c, void *data)
9d4bf22d 5061{
070a05af
CB		 5062 int len;
5063 int fulllen = 0;
5064 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5065
5066 if (!retv)
5067 inlen = 0;
5068 else
5069 memset(retv, 0, inlen);
5070
9d4bf22d
CB		 5071 if (!netdev)
5072 return -1;
5073
5074 if (netdev->type != LXC_NET_VLAN)
5075 return 0;
5076
5077 strprint(retv, inlen, "%d", netdev->priv.vlan_attr.vid);
5078
5079 return fulllen;
5080}
5081
f9373e40
CB		 5082static int get_config_net_ipv4_gateway(const char *key, char *retv, int inlen,
5083 struct lxc_conf *c, void *data)
9d4bf22d 5084{
070a05af 5085 int len;
9d4bf22d 5086 char buf[INET_ADDRSTRLEN];
070a05af
CB		 5087 int fulllen = 0;
5088 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5089
5090 if (!retv)
5091 inlen = 0;
5092 else
5093 memset(retv, 0, inlen);
5094
9d4bf22d
CB		 5095 if (!netdev)
5096 return -1;
5097
5098 if (netdev->ipv4_gateway_auto) {
5099 strprint(retv, inlen, "auto");
5100 } else if (netdev->ipv4_gateway) {
5101 inet_ntop(AF_INET, netdev->ipv4_gateway, buf, sizeof(buf));
5102 strprint(retv, inlen, "%s", buf);
5103 }
5104
5105 return fulllen;
5106}
5107
9ff60df2
CB		 5108static int get_config_net_ipv4_address(const char *key, char *retv, int inlen,
5109 struct lxc_conf *c, void *data)
9d4bf22d 5110{
070a05af 5111 int len;
9d4bf22d
CB		 5112 size_t listlen;
5113 char buf[INET_ADDRSTRLEN];
9d4bf22d 5114 struct lxc_list *it;
070a05af
CB		 5115 int fulllen = 0;
5116 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5117
5118 if (!retv)
5119 inlen = 0;
5120 else
5121 memset(retv, 0, inlen);
5122
9d4bf22d
CB		 5123 if (!netdev)
5124 return -1;
5125
5126 listlen = lxc_list_len(&netdev->ipv4);
47903908 5127
9d4bf22d
CB		 5128 lxc_list_for_each(it, &netdev->ipv4) {
5129 struct lxc_inetdev *i = it->elem;
5130 inet_ntop(AF_INET, &i->addr, buf, sizeof(buf));
6fc7d8b6 5131 strprint(retv, inlen, "%s/%u%s", buf, i->prefix,
9d4bf22d
CB		 5132 (listlen-- > 1) ? "\n" : "");
5133 }
5134
5135 return fulllen;
5136}
5137
f9373e40
CB		 5138static int get_config_net_ipv6_gateway(const char *key, char *retv, int inlen,
5139 struct lxc_conf *c, void *data)
9d4bf22d 5140{
070a05af 5141 int len;
9d4bf22d 5142 char buf[INET6_ADDRSTRLEN];
070a05af
CB		 5143 int fulllen = 0;
5144 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5145
5146 if (!retv)
5147 inlen = 0;
5148 else
5149 memset(retv, 0, inlen);
5150
9d4bf22d
CB		 5151 if (!netdev)
5152 return -1;
5153
5154 if (netdev->ipv6_gateway_auto) {
5155 strprint(retv, inlen, "auto");
5156 } else if (netdev->ipv6_gateway) {
5157 inet_ntop(AF_INET6, netdev->ipv6_gateway, buf, sizeof(buf));
5158 strprint(retv, inlen, "%s", buf);
5159 }
5160
5161 return fulllen;
5162}
5163
2e44ae28
CB		 5164static int get_config_net_ipv6_address(const char *key, char *retv, int inlen,
5165 struct lxc_conf *c, void *data)
9d4bf22d 5166{
070a05af 5167 int len;
9d4bf22d
CB		 5168 size_t listlen;
5169 char buf[INET6_ADDRSTRLEN];
9d4bf22d 5170 struct lxc_list *it;
070a05af
CB		 5171 int fulllen = 0;
5172 struct lxc_netdev *netdev = data;
9d4bf22d
CB		 5173
5174 if (!retv)
5175 inlen = 0;
5176 else
5177 memset(retv, 0, inlen);
5178
9d4bf22d
CB		 5179 if (!netdev)
5180 return -1;
5181
5182 listlen = lxc_list_len(&netdev->ipv6);
47903908 5183
9d4bf22d
CB		 5184 lxc_list_for_each(it, &netdev->ipv6) {
5185 struct lxc_inet6dev *i = it->elem;
5186 inet_ntop(AF_INET6, &i->addr, buf, sizeof(buf));
6fc7d8b6 5187 strprint(retv, inlen, "%s/%u%s", buf, i->prefix,
9d4bf22d
CB		 5188 (listlen-- > 1) ? "\n" : "");
5189 }
5190
5191 return fulllen;
5192}
cfc67626
CB		 5193
5194int lxc_list_config_items(char *retv, int inlen)
5195{
5196 size_t i;
5197 int len;
5198 int fulllen = 0;
5199
5200 if (!retv)
5201 inlen = 0;
5202 else
5203 memset(retv, 0, inlen);
5204
33eb2ec1
CB		 5205 for (i = 0; i < config_jump_table_size; i++) {
5206 char *s = config_jump_table[i].name;
300df83e 5207
cfc67626
CB		 5208 if (s[strlen(s) - 1] == '.')
5209 continue;
300df83e 5210
cfc67626
CB		 5211 strprint(retv, inlen, "%s\n", s);
5212 }
5213
5214 return fulllen;
5215}
a5448c15 5216
fe9b7349
CB		 5217int lxc_list_subkeys(struct lxc_conf *conf, const char *key, char *retv,
5218 int inlen)
5219{
5220 int len;
5221 int fulllen = 0;
5222
5223 if (!retv)
5224 inlen = 0;
5225 else
5226 memset(retv, 0, inlen);
5227
5228 if (!strcmp(key, "lxc.apparmor")) {
5229 strprint(retv, inlen, "allow_incomplete\n");
1800f924 5230 strprint(retv, inlen, "allow_nesting\n");
fe9b7349 5231 strprint(retv, inlen, "profile\n");
1800f924 5232 strprint(retv, inlen, "raw\n");
dae8c253
CB		 5233 } else if (!strcmp(key, "lxc.cgroup")) {
5234 strprint(retv, inlen, "dir\n");
fe9b7349
CB		 5235 } else if (!strcmp(key, "lxc.selinux")) {
5236 strprint(retv, inlen, "context\n");
5237 } else if (!strcmp(key, "lxc.mount")) {
5238 strprint(retv, inlen, "auto\n");
5239 strprint(retv, inlen, "entry\n");
5240 strprint(retv, inlen, "fstab\n");
5241 } else if (!strcmp(key, "lxc.rootfs")) {
5242 strprint(retv, inlen, "mount\n");
5243 strprint(retv, inlen, "options\n");
5244 strprint(retv, inlen, "path\n");
5245 } else if (!strcmp(key, "lxc.uts")) {
5246 strprint(retv, inlen, "name\n");
5247 } else if (!strcmp(key, "lxc.hook")) {
5248 strprint(retv, inlen, "autodev\n");
5249 strprint(retv, inlen, "clone\n");
5250 strprint(retv, inlen, "destroy\n");
5251 strprint(retv, inlen, "mount\n");
5252 strprint(retv, inlen, "post-stop\n");
5253 strprint(retv, inlen, "pre-mount\n");
5254 strprint(retv, inlen, "pre-start\n");
08dd2805 5255 strprint(retv, inlen, "start-host\n");
fe9b7349
CB		 5256 strprint(retv, inlen, "start\n");
5257 strprint(retv, inlen, "stop\n");
5258 } else if (!strcmp(key, "lxc.cap")) {
5259 strprint(retv, inlen, "drop\n");
5260 strprint(retv, inlen, "keep\n");
5261 } else if (!strcmp(key, "lxc.console")) {
5262 strprint(retv, inlen, "logfile\n");
5263 strprint(retv, inlen, "path\n");
5264 } else if (!strcmp(key, "lxc.seccomp")) {
5265 strprint(retv, inlen, "profile\n");
5266 } else if (!strcmp(key, "lxc.signal")) {
5267 strprint(retv, inlen, "halt\n");
5268 strprint(retv, inlen, "reboot\n");
5269 strprint(retv, inlen, "stop\n");
5270 } else if (!strcmp(key, "lxc.start")) {
5271 strprint(retv, inlen, "auto\n");
5272 strprint(retv, inlen, "delay\n");
5273 strprint(retv, inlen, "order\n");
5274 } else if (!strcmp(key, "lxc.monitor")) {
5275 strprint(retv, inlen, "unshare\n");
5276 } else {
5277 fulllen = -1;
5278 }
5279
5280 return fulllen;
5281}
5282
a5448c15
CB		 5283int lxc_list_net(struct lxc_conf *c, const char *key, char *retv, int inlen)
5284{
5285 int len;
5286 const char *idxstring;
a5448c15
CB		 5287 struct lxc_netdev *netdev;
5288 int fulllen = 0;
5289 ssize_t idx = -1;
a5448c15
CB		 5290
5291 idxstring = key + 8;
5292 if (!isdigit(*idxstring))
5293 return -1;
5294
7451daf8
CB		 5295 (void)get_network_config_ops(key, c, &idx, NULL);
5296 if (idx < 0)
a5448c15
CB		 5297 return -1;
5298
5299 netdev = lxc_get_netdev_by_idx(c, (unsigned int)idx, false);
a5448c15
CB		 5300 if (!netdev)
5301 return -1;
5302
5303 if (!retv)
5304 inlen = 0;
5305 else
5306 memset(retv, 0, inlen);
5307
5308 strprint(retv, inlen, "type\n");
5309 strprint(retv, inlen, "script.up\n");
5310 strprint(retv, inlen, "script.down\n");
47903908 5311
a5448c15
CB		 5312 if (netdev->type != LXC_NET_EMPTY) {
5313 strprint(retv, inlen, "flags\n");
5314 strprint(retv, inlen, "link\n");
5315 strprint(retv, inlen, "name\n");
5316 strprint(retv, inlen, "hwaddr\n");
5317 strprint(retv, inlen, "mtu\n");
5318 strprint(retv, inlen, "ipv6.address\n");
5319 strprint(retv, inlen, "ipv6.gateway\n");
5320 strprint(retv, inlen, "ipv4.address\n");
5321 strprint(retv, inlen, "ipv4.gateway\n");
5322 }
5323
5324 switch (netdev->type) {
5325 case LXC_NET_VETH:
5326 strprint(retv, inlen, "veth.pair\n");
5327 break;
5328 case LXC_NET_MACVLAN:
5329 strprint(retv, inlen, "macvlan.mode\n");
5330 break;
5331 case LXC_NET_VLAN:
5332 strprint(retv, inlen, "vlan.id\n");
5333 break;
5334 case LXC_NET_PHYS:
5335 break;
5336 }
5337
5338 return fulllen;
5339}
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