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0ad19a3f | 1 | /* |
2 | * lxc: linux Container library | |
3 | * | |
4 | * (C) Copyright IBM Corp. 2007, 2008 | |
5 | * | |
6 | * Authors: | |
7 | * Daniel Lezcano <dlezcano at fr.ibm.com> | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU Lesser General Public | |
11 | * License as published by the Free Software Foundation; either | |
12 | * version 2.1 of the License, or (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public | |
20 | * License along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
23 | #ifndef _conf_h | |
24 | #define _conf_h | |
25 | ||
26 | #include <netinet/in.h> | |
74a2b586 | 27 | #include <net/if.h> |
b0a33c1e | 28 | #include <sys/param.h> |
8173e600 | 29 | #include <sys/types.h> |
19a26f82 | 30 | #include <stdbool.h> |
0ad19a3f | 31 | |
00b3c2e2 CLG |
32 | #include <lxc/list.h> |
33 | ||
43de51b7 | 34 | #include <lxc/start.h> /* for lxc_handler */ |
e3b4c4c4 | 35 | |
769872f9 SH |
36 | #if HAVE_SCMP_FILTER_CTX |
37 | typedef void * scmp_filter_ctx; | |
38 | #endif | |
39 | ||
13954cce | 40 | enum { |
24654103 DL |
41 | LXC_NET_EMPTY, |
42 | LXC_NET_VETH, | |
43 | LXC_NET_MACVLAN, | |
44 | LXC_NET_PHYS, | |
45 | LXC_NET_VLAN, | |
46 | LXC_NET_MAXCONFTYPE, | |
0ad19a3f | 47 | }; |
48 | ||
49 | /* | |
50 | * Defines the structure to configure an ipv4 address | |
51 | * @address : ipv4 address | |
52 | * @broadcast : ipv4 broadcast address | |
53 | * @mask : network mask | |
54 | */ | |
55 | struct lxc_inetdev { | |
56 | struct in_addr addr; | |
57 | struct in_addr bcast; | |
58 | int prefix; | |
59 | }; | |
60 | ||
61 | struct lxc_route { | |
62 | struct in_addr addr; | |
63 | }; | |
64 | ||
65 | /* | |
66 | * Defines the structure to configure an ipv6 address | |
67 | * @flags : set the address up | |
68 | * @address : ipv6 address | |
69 | * @broadcast : ipv6 broadcast address | |
70 | * @mask : network mask | |
71 | */ | |
72 | struct lxc_inet6dev { | |
73 | struct in6_addr addr; | |
0093bb8c | 74 | struct in6_addr mcast; |
0ad19a3f | 75 | struct in6_addr acast; |
76 | int prefix; | |
77 | }; | |
78 | ||
79 | struct lxc_route6 { | |
80 | struct in6_addr addr; | |
81 | }; | |
26c39028 | 82 | |
e892973e DL |
83 | struct ifla_veth { |
84 | char *pair; /* pair name */ | |
74a2b586 | 85 | char veth1[IFNAMSIZ]; /* needed for deconf */ |
e892973e DL |
86 | }; |
87 | ||
26c39028 JHS |
88 | struct ifla_vlan { |
89 | uint flags; | |
90 | uint fmask; | |
7c11d57a SG |
91 | unsigned short vid; |
92 | unsigned short pad; | |
26c39028 JHS |
93 | }; |
94 | ||
e892973e DL |
95 | struct ifla_macvlan { |
96 | int mode; /* private, vepa, bridge */ | |
97 | }; | |
98 | ||
f6cc1de1 | 99 | union netdev_p { |
e892973e | 100 | struct ifla_veth veth_attr; |
f6cc1de1 | 101 | struct ifla_vlan vlan_attr; |
e892973e | 102 | struct ifla_macvlan macvlan_attr; |
f6cc1de1 JHS |
103 | }; |
104 | ||
0ad19a3f | 105 | /* |
106 | * Defines a structure to configure a network device | |
e3b4c4c4 ST |
107 | * @link : lxc.network.link, name of bridge or host iface to attach if any |
108 | * @name : lxc.network.name, name of iface on the container side | |
109 | * @flags : flag of the network device (IFF_UP, ... ) | |
110 | * @ipv4 : a list of ipv4 addresses to be set on the network device | |
111 | * @ipv6 : a list of ipv6 addresses to be set on the network device | |
112 | * @upscript : a script filename to be executed during interface configuration | |
74a2b586 | 113 | * @downscript : a script filename to be executed during interface destruction |
0ad19a3f | 114 | */ |
115 | struct lxc_netdev { | |
5f4535a3 | 116 | int type; |
0ad19a3f | 117 | int flags; |
82d5ae15 | 118 | int ifindex; |
9d083402 MT |
119 | char *link; |
120 | char *name; | |
0ad19a3f | 121 | char *hwaddr; |
442cbbe6 | 122 | char *mtu; |
f6cc1de1 | 123 | union netdev_p priv; |
0ad19a3f | 124 | struct lxc_list ipv4; |
125 | struct lxc_list ipv6; | |
f8fee0e2 | 126 | struct in_addr *ipv4_gateway; |
19a26f82 | 127 | bool ipv4_gateway_auto; |
f8fee0e2 | 128 | struct in6_addr *ipv6_gateway; |
19a26f82 | 129 | bool ipv6_gateway_auto; |
e3b4c4c4 | 130 | char *upscript; |
74a2b586 | 131 | char *downscript; |
0ad19a3f | 132 | }; |
133 | ||
134 | /* | |
576f946d | 135 | * Defines a generic struct to configure the control group. |
136 | * It is up to the programmer to specify the right subsystem. | |
137 | * @subsystem : the targetted subsystem | |
138 | * @value : the value to set | |
0ad19a3f | 139 | */ |
140 | struct lxc_cgroup { | |
576f946d | 141 | char *subsystem; |
142 | char *value; | |
0ad19a3f | 143 | }; |
144 | ||
b0a33c1e | 145 | /* |
146 | * Defines a structure containing a pty information for | |
147 | * virtualizing a tty | |
148 | * @name : the path name of the slave pty side | |
149 | * @master : the file descriptor of the master | |
150 | * @slave : the file descriptor of the slave | |
151 | */ | |
152 | struct lxc_pty_info { | |
153 | char name[MAXPATHLEN]; | |
154 | int master; | |
155 | int slave; | |
156 | int busy; | |
157 | }; | |
158 | ||
159 | /* | |
160 | * Defines the number of tty configured and contains the | |
161 | * instanciated ptys | |
162 | * @nbtty = number of configured ttys | |
163 | */ | |
164 | struct lxc_tty_info { | |
165 | int nbtty; | |
166 | struct lxc_pty_info *pty_info; | |
167 | }; | |
168 | ||
63376d7d DL |
169 | /* |
170 | * Defines the structure to store the console information | |
171 | * @peer : the file descriptor put/get console traffic | |
172 | * @name : the file name of the slave pty | |
173 | */ | |
174 | struct lxc_console { | |
175 | int slave; | |
176 | int master; | |
177 | int peer; | |
28a4b0e5 | 178 | char *path; |
596a818d DE |
179 | char *log_path; |
180 | int log_fd; | |
63376d7d | 181 | char name[MAXPATHLEN]; |
e0dc0de7 | 182 | struct termios *tios; |
63376d7d DL |
183 | }; |
184 | ||
33fcb7a0 DL |
185 | /* |
186 | * Defines a structure to store the rootfs location, the | |
187 | * optionals pivot_root, rootfs mount paths | |
188 | * @rootfs : a path to the rootfs | |
189 | * @pivot_root : a path to a pivot_root location to be used | |
190 | */ | |
191 | struct lxc_rootfs { | |
192 | char *path; | |
23b7ea69 | 193 | char *mount; |
33fcb7a0 DL |
194 | char *pivot; |
195 | }; | |
196 | ||
571e6ec8 DL |
197 | /* |
198 | * Defines the global container configuration | |
63376d7d DL |
199 | * @rootfs : root directory to run the container |
200 | * @pivotdir : pivotdir path, if not set default will be used | |
201 | * @mount : list of mount points | |
202 | * @tty : numbers of tty | |
203 | * @pts : new pts instance | |
204 | * @mount_list : list of mount point (alternative to fstab file) | |
205 | * @network : network configuration | |
206 | * @utsname : container utsname | |
207 | * @fstab : path to a fstab file format | |
208 | * @caps : list of the capabilities | |
209 | * @tty_info : tty data | |
210 | * @console : console data | |
7c6ef2a2 | 211 | * @ttydir : directory (under /dev) in which to create console and ttys |
e075f5d9 SH |
212 | #if HAVE_APPARMOR |
213 | * @aa_profile : apparmor profile to switch to | |
214 | #endif | |
571e6ec8 | 215 | */ |
26ddeedd | 216 | enum lxchooks { |
f7bee6c6 MW |
217 | LXCHOOK_PRESTART, LXCHOOK_PREMOUNT, LXCHOOK_MOUNT, LXCHOOK_AUTODEV, |
218 | LXCHOOK_START, LXCHOOK_POSTSTOP, NUM_LXC_HOOKS}; | |
72d0e1cb SG |
219 | extern char *lxchook_names[NUM_LXC_HOOKS]; |
220 | ||
7b35f3d6 SH |
221 | struct saved_nic { |
222 | int ifindex; | |
223 | char *orig_name; | |
224 | }; | |
225 | ||
571e6ec8 | 226 | struct lxc_conf { |
571e6ec8 DL |
227 | char *fstab; |
228 | int tty; | |
229 | int pts; | |
91480a0f | 230 | int reboot; |
828695d9 | 231 | int need_utmp_watch; |
cccc74b5 | 232 | int personality; |
571e6ec8 DL |
233 | struct utsname *utsname; |
234 | struct lxc_list cgroup; | |
5f4535a3 | 235 | struct lxc_list network; |
7b35f3d6 SH |
236 | struct saved_nic *saved_nics; |
237 | int num_savednics; | |
e7938e9e | 238 | struct lxc_list mount_list; |
81810dd1 | 239 | struct lxc_list caps; |
571e6ec8 | 240 | struct lxc_tty_info tty_info; |
63376d7d | 241 | struct lxc_console console; |
33fcb7a0 | 242 | struct lxc_rootfs rootfs; |
7c6ef2a2 | 243 | char *ttydir; |
b119f362 | 244 | int close_all_fds; |
26ddeedd | 245 | struct lxc_list hooks[NUM_LXC_HOOKS]; |
e075f5d9 SH |
246 | #if HAVE_APPARMOR |
247 | char *aa_profile; | |
248 | #endif | |
4a85ce2a | 249 | |
e075f5d9 SH |
250 | #if HAVE_APPARMOR /* || HAVE_SELINUX || HAVE_SMACK */ |
251 | int lsm_umount_proc; | |
252 | #endif | |
8f2c3a70 | 253 | char *seccomp; // filename with the seccomp rules |
769872f9 SH |
254 | #if HAVE_SCMP_FILTER_CTX |
255 | scmp_filter_ctx *seccomp_ctx; | |
256 | #endif | |
72d0e1cb | 257 | int maincmd_fd; |
c6883f38 | 258 | int autodev; // if 1, mount and fill a /dev at start |
f7bee6c6 | 259 | char *rcfile; // Copy of the top level rcfile we read |
571e6ec8 DL |
260 | }; |
261 | ||
26ddeedd | 262 | int run_lxc_hooks(const char *name, char *hook, struct lxc_conf *conf); |
26ddeedd | 263 | |
cc28d0b0 SH |
264 | extern int setup_cgroup(const char *name, struct lxc_list *cgroups); |
265 | extern int detect_shared_rootfs(void); | |
266 | ||
089cd8b8 DL |
267 | /* |
268 | * Initialize the lxc configuration structure | |
269 | */ | |
7b379ab3 | 270 | extern struct lxc_conf *lxc_conf_init(void); |
8eb5694b | 271 | extern void lxc_conf_free(struct lxc_conf *conf); |
089cd8b8 | 272 | |
0c547523 SH |
273 | extern int pin_rootfs(const char *rootfs); |
274 | ||
e3b4c4c4 | 275 | extern int lxc_create_network(struct lxc_handler *handler); |
74a2b586 | 276 | extern void lxc_delete_network(struct lxc_handler *handler); |
82d5ae15 | 277 | extern int lxc_assign_network(struct lxc_list *networks, pid_t pid); |
19a26f82 | 278 | extern int lxc_find_gateway_addresses(struct lxc_handler *handler); |
0ad19a3f | 279 | |
5e4a62bf | 280 | extern int lxc_create_tty(const char *name, struct lxc_conf *conf); |
b0a33c1e | 281 | extern void lxc_delete_tty(struct lxc_tty_info *tty_info); |
282 | ||
72d0e1cb | 283 | extern int lxc_clear_config_network(struct lxc_conf *c); |
12a50cc6 | 284 | extern int lxc_clear_nic(struct lxc_conf *c, const char *key); |
72d0e1cb | 285 | extern int lxc_clear_config_caps(struct lxc_conf *c); |
12a50cc6 | 286 | extern int lxc_clear_cgroups(struct lxc_conf *c, const char *key); |
72d0e1cb | 287 | extern int lxc_clear_mount_entries(struct lxc_conf *c); |
12a50cc6 | 288 | extern int lxc_clear_hooks(struct lxc_conf *c, const char *key); |
72d0e1cb | 289 | |
0ad19a3f | 290 | /* |
291 | * Configure the container from inside | |
292 | */ | |
88d5514d | 293 | |
571e6ec8 | 294 | extern int lxc_setup(const char *name, struct lxc_conf *lxc_conf); |
7b35f3d6 SH |
295 | |
296 | extern void lxc_rename_phys_nics_on_shutdown(struct lxc_conf *conf); | |
0ad19a3f | 297 | #endif |