1/*-
2 * Copyright (c) 2011 James Gritton.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 2011 James Gritton.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
|
27 */
28
29#include <sys/param.h>
30#include <sys/types.h>
31#include <sys/jail.h>
32#include <sys/queue.h>
33#include <sys/time.h>
34
35#include <jail.h>
36
37#define CONF_FILE "/etc/jail.conf"
38
39#define DEP_FROM 0
40#define DEP_TO 1
41
42#define DF_SEEN 0x01 /* Dependency has been followed */
43#define DF_LIGHT 0x02 /* Implied dependency on jail existence only */
44#define DF_NOFAIL 0x04 /* Don't propigate failed jails */
45
46#define PF_VAR 0x01 /* This is a variable, not a true parameter */
47#define PF_APPEND 0x02 /* Append to existing parameter list */
48#define PF_BAD 0x04 /* Unable to resolve parameter value */
49#define PF_INTERNAL 0x08 /* Internal parameter, not passed to kernel */
50#define PF_BOOL 0x10 /* Boolean parameter */
51#define PF_INT 0x20 /* Integer parameter */
52#define PF_CONV 0x40 /* Parameter duplicated in converted form */
53
54#define JF_START 0x0001 /* -c */
55#define JF_SET 0x0002 /* -m */
56#define JF_STOP 0x0004 /* -r */
57#define JF_DEPEND 0x0008 /* Operation required by dependency */
58#define JF_WILD 0x0010 /* Not specified on the command line */
59#define JF_FAILED 0x0020 /* Operation failed */
60#define JF_PARAMS 0x0040 /* Parameters checked and imported */
61#define JF_RDTUN 0x0080 /* Create-only parameter check has been done */
62#define JF_PERSIST 0x0100 /* Jail is temporarily persistent */
63#define JF_TIMEOUT 0x0200 /* A command (or process kill) timed out */
64#define JF_SLEEPQ 0x0400 /* Waiting on a command and/or timeout */
65
66#define JF_OP_MASK (JF_START | JF_SET | JF_STOP)
67#define JF_RESTART (JF_START | JF_STOP)
68#define JF_START_SET (JF_START | JF_SET)
69#define JF_SET_RESTART (JF_SET | JF_STOP)
70#define JF_START_SET_RESTART (JF_START | JF_SET | JF_STOP)
71#define JF_DO_STOP(js) (((js) & (JF_SET | JF_STOP)) == JF_STOP)
72
73enum intparam {
74 IP_ALLOW_DYING = 1, /* Allow making changes to a dying jail */
75 IP_COMMAND, /* Command run inside jail at creation */
76 IP_DEPEND, /* Jail starts after (stops before) another */
77 IP_EXEC_CLEAN, /* Run commands in a clean environment */
78 IP_EXEC_CONSOLELOG, /* Redirect optput for commands run in jail */
79 IP_EXEC_FIB, /* Run jailed commands with this FIB */
80 IP_EXEC_JAIL_USER, /* Run jailed commands as this user */
81 IP_EXEC_POSTSTART, /* Commands run outside jail after creating */
82 IP_EXEC_POSTSTOP, /* Commands run outside jail after removing */
83 IP_EXEC_PRESTART, /* Commands run outside jail before creating */
84 IP_EXEC_PRESTOP, /* Commands run outside jail before removing */
85 IP_EXEC_START, /* Commands run inside jail on creation */
86 IP_EXEC_STOP, /* Commands run inside jail on removal */
87 IP_EXEC_SYSTEM_JAIL_USER,/* Get jail_user from system passwd file */
88 IP_EXEC_SYSTEM_USER, /* Run non-jailed commands as this user */
89 IP_EXEC_TIMEOUT, /* Time to wait for a command to complete */
90 IP_INTERFACE, /* Add IP addresses to this interface */
91 IP_IP_HOSTNAME, /* Get jail IP address(es) from hostname */
92 IP_MOUNT, /* Mount points in fstab(5) form */
93 IP_MOUNT_DEVFS, /* Mount /dev under prison root */
94 IP_MOUNT_DEVFS_RULESET, /* Ruleset for the devfs mount */
95 IP_MOUNT_FSTAB, /* A standard fstab(5) file */
96 IP_STOP_TIMEOUT, /* Time to wait after sending SIGTERM */
97 IP_VNET_INTERFACE, /* Assign interface(s) to vnet jail */
98 IP__IP4_IFADDR, /* Copy of ip4.addr with interface/netmask */
99#ifdef INET6
100 IP__IP6_IFADDR, /* Copy of ip6.addr with interface/prefixlen */
101#endif
102 IP__MOUNT_FROM_FSTAB, /* Line from mount.fstab file */
103 IP__OP, /* Placeholder for requested operation */
104 KP_ALLOW_CHFLAGS,
105 KP_ALLOW_MOUNT,
106 KP_ALLOW_RAW_SOCKETS,
107 KP_ALLOW_SET_HOSTNAME,
108 KP_ALLOW_SOCKET_AF,
109 KP_ALLOW_SYSVIPC,
110 KP_ENFORCE_STATFS,
111 KP_HOST_HOSTNAME,
112 KP_IP4_ADDR,
113#ifdef INET6
114 KP_IP6_ADDR,
115#endif
116 KP_JID,
117 KP_NAME,
118 KP_PATH,
119 KP_PERSIST,
120 KP_SECURELEVEL,
121 KP_VNET,
122 IP_NPARAM
123};
124
125STAILQ_HEAD(cfvars, cfvar);
126
127struct cfvar {
128 STAILQ_ENTRY(cfvar) tq;
129 char *name;
130 size_t pos;
131};
132
133TAILQ_HEAD(cfstrings, cfstring);
134
135struct cfstring {
136 TAILQ_ENTRY(cfstring) tq;
137 char *s;
138 size_t len;
139 struct cfvars vars;
140};
141
142TAILQ_HEAD(cfparams, cfparam);
143
144struct cfparam {
145 TAILQ_ENTRY(cfparam) tq;
146 char *name;
147 struct cfstrings val;
148 unsigned flags;
149 int gen;
150};
151
152TAILQ_HEAD(cfjails, cfjail);
153STAILQ_HEAD(cfdepends, cfdepend);
154
155struct cfjail {
156 TAILQ_ENTRY(cfjail) tq;
157 char *name;
158 char *comline;
159 struct cfparams params;
160 struct cfdepends dep[2];
161 struct cfjails *queue;
162 struct cfparam *intparams[IP_NPARAM];
163 struct cfstring *comstring;
164 struct jailparam *jp;
165 struct timespec timeout;
166 const enum intparam *comparam;
167 unsigned flags;
168 int jid;
169 int seq;
170 int pstatus;
171 int ndeps;
172 int njp;
173 int nprocs;
174};
175
176struct cfdepend {
177 STAILQ_ENTRY(cfdepend) tq[2];
178 struct cfjail *j[2];
179 unsigned flags;
180};
181
182extern void *emalloc(size_t);
183extern void *erealloc(void *, size_t);
184extern char *estrdup(const char *);
| 27 */
28
29#include <sys/param.h>
30#include <sys/types.h>
31#include <sys/jail.h>
32#include <sys/queue.h>
33#include <sys/time.h>
34
35#include <jail.h>
36
37#define CONF_FILE "/etc/jail.conf"
38
39#define DEP_FROM 0
40#define DEP_TO 1
41
42#define DF_SEEN 0x01 /* Dependency has been followed */
43#define DF_LIGHT 0x02 /* Implied dependency on jail existence only */
44#define DF_NOFAIL 0x04 /* Don't propigate failed jails */
45
46#define PF_VAR 0x01 /* This is a variable, not a true parameter */
47#define PF_APPEND 0x02 /* Append to existing parameter list */
48#define PF_BAD 0x04 /* Unable to resolve parameter value */
49#define PF_INTERNAL 0x08 /* Internal parameter, not passed to kernel */
50#define PF_BOOL 0x10 /* Boolean parameter */
51#define PF_INT 0x20 /* Integer parameter */
52#define PF_CONV 0x40 /* Parameter duplicated in converted form */
53
54#define JF_START 0x0001 /* -c */
55#define JF_SET 0x0002 /* -m */
56#define JF_STOP 0x0004 /* -r */
57#define JF_DEPEND 0x0008 /* Operation required by dependency */
58#define JF_WILD 0x0010 /* Not specified on the command line */
59#define JF_FAILED 0x0020 /* Operation failed */
60#define JF_PARAMS 0x0040 /* Parameters checked and imported */
61#define JF_RDTUN 0x0080 /* Create-only parameter check has been done */
62#define JF_PERSIST 0x0100 /* Jail is temporarily persistent */
63#define JF_TIMEOUT 0x0200 /* A command (or process kill) timed out */
64#define JF_SLEEPQ 0x0400 /* Waiting on a command and/or timeout */
65
66#define JF_OP_MASK (JF_START | JF_SET | JF_STOP)
67#define JF_RESTART (JF_START | JF_STOP)
68#define JF_START_SET (JF_START | JF_SET)
69#define JF_SET_RESTART (JF_SET | JF_STOP)
70#define JF_START_SET_RESTART (JF_START | JF_SET | JF_STOP)
71#define JF_DO_STOP(js) (((js) & (JF_SET | JF_STOP)) == JF_STOP)
72
73enum intparam {
74 IP_ALLOW_DYING = 1, /* Allow making changes to a dying jail */
75 IP_COMMAND, /* Command run inside jail at creation */
76 IP_DEPEND, /* Jail starts after (stops before) another */
77 IP_EXEC_CLEAN, /* Run commands in a clean environment */
78 IP_EXEC_CONSOLELOG, /* Redirect optput for commands run in jail */
79 IP_EXEC_FIB, /* Run jailed commands with this FIB */
80 IP_EXEC_JAIL_USER, /* Run jailed commands as this user */
81 IP_EXEC_POSTSTART, /* Commands run outside jail after creating */
82 IP_EXEC_POSTSTOP, /* Commands run outside jail after removing */
83 IP_EXEC_PRESTART, /* Commands run outside jail before creating */
84 IP_EXEC_PRESTOP, /* Commands run outside jail before removing */
85 IP_EXEC_START, /* Commands run inside jail on creation */
86 IP_EXEC_STOP, /* Commands run inside jail on removal */
87 IP_EXEC_SYSTEM_JAIL_USER,/* Get jail_user from system passwd file */
88 IP_EXEC_SYSTEM_USER, /* Run non-jailed commands as this user */
89 IP_EXEC_TIMEOUT, /* Time to wait for a command to complete */
90 IP_INTERFACE, /* Add IP addresses to this interface */
91 IP_IP_HOSTNAME, /* Get jail IP address(es) from hostname */
92 IP_MOUNT, /* Mount points in fstab(5) form */
93 IP_MOUNT_DEVFS, /* Mount /dev under prison root */
94 IP_MOUNT_DEVFS_RULESET, /* Ruleset for the devfs mount */
95 IP_MOUNT_FSTAB, /* A standard fstab(5) file */
96 IP_STOP_TIMEOUT, /* Time to wait after sending SIGTERM */
97 IP_VNET_INTERFACE, /* Assign interface(s) to vnet jail */
98 IP__IP4_IFADDR, /* Copy of ip4.addr with interface/netmask */
99#ifdef INET6
100 IP__IP6_IFADDR, /* Copy of ip6.addr with interface/prefixlen */
101#endif
102 IP__MOUNT_FROM_FSTAB, /* Line from mount.fstab file */
103 IP__OP, /* Placeholder for requested operation */
104 KP_ALLOW_CHFLAGS,
105 KP_ALLOW_MOUNT,
106 KP_ALLOW_RAW_SOCKETS,
107 KP_ALLOW_SET_HOSTNAME,
108 KP_ALLOW_SOCKET_AF,
109 KP_ALLOW_SYSVIPC,
110 KP_ENFORCE_STATFS,
111 KP_HOST_HOSTNAME,
112 KP_IP4_ADDR,
113#ifdef INET6
114 KP_IP6_ADDR,
115#endif
116 KP_JID,
117 KP_NAME,
118 KP_PATH,
119 KP_PERSIST,
120 KP_SECURELEVEL,
121 KP_VNET,
122 IP_NPARAM
123};
124
125STAILQ_HEAD(cfvars, cfvar);
126
127struct cfvar {
128 STAILQ_ENTRY(cfvar) tq;
129 char *name;
130 size_t pos;
131};
132
133TAILQ_HEAD(cfstrings, cfstring);
134
135struct cfstring {
136 TAILQ_ENTRY(cfstring) tq;
137 char *s;
138 size_t len;
139 struct cfvars vars;
140};
141
142TAILQ_HEAD(cfparams, cfparam);
143
144struct cfparam {
145 TAILQ_ENTRY(cfparam) tq;
146 char *name;
147 struct cfstrings val;
148 unsigned flags;
149 int gen;
150};
151
152TAILQ_HEAD(cfjails, cfjail);
153STAILQ_HEAD(cfdepends, cfdepend);
154
155struct cfjail {
156 TAILQ_ENTRY(cfjail) tq;
157 char *name;
158 char *comline;
159 struct cfparams params;
160 struct cfdepends dep[2];
161 struct cfjails *queue;
162 struct cfparam *intparams[IP_NPARAM];
163 struct cfstring *comstring;
164 struct jailparam *jp;
165 struct timespec timeout;
166 const enum intparam *comparam;
167 unsigned flags;
168 int jid;
169 int seq;
170 int pstatus;
171 int ndeps;
172 int njp;
173 int nprocs;
174};
175
176struct cfdepend {
177 STAILQ_ENTRY(cfdepend) tq[2];
178 struct cfjail *j[2];
179 unsigned flags;
180};
181
182extern void *emalloc(size_t);
183extern void *erealloc(void *, size_t);
184extern char *estrdup(const char *);
|
185extern void failed(struct cfjail *j);
186extern void jail_note(const struct cfjail *j, const char *fmt, ...);
187extern void jail_warnx(const struct cfjail *j, const char *fmt, ...);
188
189extern int next_command(struct cfjail *j);
190extern int finish_command(struct cfjail *j);
191extern struct cfjail *next_proc(int nonblock);
192
193extern void load_config(void);
194extern struct cfjail *add_jail(void);
195extern void add_param(struct cfjail *j, const struct cfparam *p,
196 enum intparam ipnum, const char *value);
197extern int bool_param(const struct cfparam *p);
198extern int int_param(const struct cfparam *p, int *ip);
199extern const char *string_param(const struct cfparam *p);
200extern int check_intparams(struct cfjail *j);
201extern int import_params(struct cfjail *j);
202extern int equalopts(const char *opt1, const char *opt2);
203extern int wild_jail_name(const char *wname);
204extern int wild_jail_match(const char *jname, const char *wname);
205
206extern void dep_setup(int docf);
207extern int dep_check(struct cfjail *j);
208extern void dep_done(struct cfjail *j, unsigned flags);
209extern void dep_reset(struct cfjail *j);
210extern struct cfjail *next_jail(void);
211extern int start_state(const char *target, unsigned state, int running);
212extern void requeue(struct cfjail *j, struct cfjails *queue);
213
214extern void yyerror(const char *);
215extern int yylex(void);
216extern int yyparse(void);
217
218extern struct cfjails cfjails;
219extern struct cfjails ready;
220extern struct cfjails depend;
221extern const char *cfname;
| 186extern void failed(struct cfjail *j);
187extern void jail_note(const struct cfjail *j, const char *fmt, ...);
188extern void jail_warnx(const struct cfjail *j, const char *fmt, ...);
189
190extern int next_command(struct cfjail *j);
191extern int finish_command(struct cfjail *j);
192extern struct cfjail *next_proc(int nonblock);
193
194extern void load_config(void);
195extern struct cfjail *add_jail(void);
196extern void add_param(struct cfjail *j, const struct cfparam *p,
197 enum intparam ipnum, const char *value);
198extern int bool_param(const struct cfparam *p);
199extern int int_param(const struct cfparam *p, int *ip);
200extern const char *string_param(const struct cfparam *p);
201extern int check_intparams(struct cfjail *j);
202extern int import_params(struct cfjail *j);
203extern int equalopts(const char *opt1, const char *opt2);
204extern int wild_jail_name(const char *wname);
205extern int wild_jail_match(const char *jname, const char *wname);
206
207extern void dep_setup(int docf);
208extern int dep_check(struct cfjail *j);
209extern void dep_done(struct cfjail *j, unsigned flags);
210extern void dep_reset(struct cfjail *j);
211extern struct cfjail *next_jail(void);
212extern int start_state(const char *target, unsigned state, int running);
213extern void requeue(struct cfjail *j, struct cfjails *queue);
214
215extern void yyerror(const char *);
216extern int yylex(void);
217extern int yyparse(void);
218
219extern struct cfjails cfjails;
220extern struct cfjails ready;
221extern struct cfjails depend;
222extern const char *cfname;
|