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 *
|
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__NULL = 0, /* Null command */
75 IP_ALLOW_DYING, /* Allow making changes to a dying jail */
76 IP_COMMAND, /* Command run inside jail at creation */
77 IP_DEPEND, /* Jail starts after (stops before) another */
78 IP_EXEC_CLEAN, /* Run commands in a clean environment */
79 IP_EXEC_CONSOLELOG, /* Redirect optput for commands run in jail */
80 IP_EXEC_FIB, /* Run jailed commands with this FIB */
81 IP_EXEC_JAIL_USER, /* Run jailed commands as this user */
82 IP_EXEC_POSTSTART, /* Commands run outside jail after creating */
83 IP_EXEC_POSTSTOP, /* Commands run outside jail after removing */
84 IP_EXEC_PRESTART, /* Commands run outside jail before creating */
85 IP_EXEC_PRESTOP, /* Commands run outside jail before removing */
86 IP_EXEC_START, /* Commands run inside jail on creation */
87 IP_EXEC_STOP, /* Commands run inside jail on removal */
88 IP_EXEC_SYSTEM_JAIL_USER,/* Get jail_user from system passwd file */
89 IP_EXEC_SYSTEM_USER, /* Run non-jailed commands as this user */
90 IP_EXEC_TIMEOUT, /* Time to wait for a command to complete */
91#if defined(INET) || defined(INET6)
92 IP_INTERFACE, /* Add IP addresses to this interface */
93 IP_IP_HOSTNAME, /* Get jail IP address(es) from hostname */
94#endif
95 IP_MOUNT, /* Mount points in fstab(5) form */
96 IP_MOUNT_DEVFS, /* Mount /dev under prison root */
97 IP_MOUNT_FSTAB, /* A standard fstab(5) file */
98 IP_STOP_TIMEOUT, /* Time to wait after sending SIGTERM */
99 IP_VNET_INTERFACE, /* Assign interface(s) to vnet jail */
100#ifdef INET
101 IP__IP4_IFADDR, /* Copy of ip4.addr with interface/netmask */
102#endif
103#ifdef INET6
104 IP__IP6_IFADDR, /* Copy of ip6.addr with interface/prefixlen */
105#endif
106 IP__MOUNT_FROM_FSTAB, /* Line from mount.fstab file */
107 IP__OP, /* Placeholder for requested operation */
108 KP_ALLOW_CHFLAGS,
109 KP_ALLOW_MOUNT,
110 KP_ALLOW_RAW_SOCKETS,
111 KP_ALLOW_SET_HOSTNAME,
112 KP_ALLOW_SOCKET_AF,
113 KP_ALLOW_SYSVIPC,
114 KP_DEVFS_RULESET,
115 KP_ENFORCE_STATFS,
116 KP_HOST_HOSTNAME,
117#ifdef INET
118 KP_IP4_ADDR,
119#endif
120#ifdef INET6
121 KP_IP6_ADDR,
122#endif
123 KP_JID,
124 KP_NAME,
125 KP_PATH,
126 KP_PERSIST,
127 KP_SECURELEVEL,
128 KP_VNET,
129 IP_NPARAM
130};
131
132STAILQ_HEAD(cfvars, cfvar);
133
134struct cfvar {
135 STAILQ_ENTRY(cfvar) tq;
136 char *name;
137 size_t pos;
138};
139
140TAILQ_HEAD(cfstrings, cfstring);
141
142struct cfstring {
143 TAILQ_ENTRY(cfstring) tq;
144 char *s;
145 size_t len;
146 struct cfvars vars;
147};
148
149TAILQ_HEAD(cfparams, cfparam);
150
151struct cfparam {
152 TAILQ_ENTRY(cfparam) tq;
153 char *name;
154 struct cfstrings val;
155 unsigned flags;
156 int gen;
157};
158
159TAILQ_HEAD(cfjails, cfjail);
160STAILQ_HEAD(cfdepends, cfdepend);
161
162struct cfjail {
163 TAILQ_ENTRY(cfjail) tq;
164 char *name;
165 char *comline;
166 struct cfparams params;
167 struct cfdepends dep[2];
168 struct cfjails *queue;
169 struct cfparam *intparams[IP_NPARAM];
170 struct cfstring *comstring;
171 struct jailparam *jp;
172 struct timespec timeout;
173 const enum intparam *comparam;
174 unsigned flags;
175 int jid;
176 int seq;
177 int pstatus;
178 int ndeps;
179 int njp;
180 int nprocs;
181};
182
183struct cfdepend {
184 STAILQ_ENTRY(cfdepend) tq[2];
185 struct cfjail *j[2];
186 unsigned flags;
187};
188
189extern void *emalloc(size_t);
190extern void *erealloc(void *, size_t);
191extern char *estrdup(const char *);
192extern int create_jail(struct cfjail *j);
193extern void failed(struct cfjail *j);
194extern void jail_note(const struct cfjail *j, const char *fmt, ...);
195extern void jail_warnx(const struct cfjail *j, const char *fmt, ...);
196
197extern int next_command(struct cfjail *j);
198extern int finish_command(struct cfjail *j);
199extern struct cfjail *next_proc(int nonblock);
200
201extern void load_config(void);
202extern struct cfjail *add_jail(void);
203extern void add_param(struct cfjail *j, const struct cfparam *p,
204 enum intparam ipnum, const char *value);
205extern int bool_param(const struct cfparam *p);
206extern int int_param(const struct cfparam *p, int *ip);
207extern const char *string_param(const struct cfparam *p);
208extern int check_intparams(struct cfjail *j);
209extern int import_params(struct cfjail *j);
210extern int equalopts(const char *opt1, const char *opt2);
211extern int wild_jail_name(const char *wname);
212extern int wild_jail_match(const char *jname, const char *wname);
213
214extern void dep_setup(int docf);
215extern int dep_check(struct cfjail *j);
216extern void dep_done(struct cfjail *j, unsigned flags);
217extern void dep_reset(struct cfjail *j);
218extern struct cfjail *next_jail(void);
219extern int start_state(const char *target, int docf, unsigned state,
220 int running);
221extern void requeue(struct cfjail *j, struct cfjails *queue);
222
223extern void yyerror(const char *);
224extern int yylex(void);
225
226extern struct cfjails cfjails;
227extern struct cfjails ready;
228extern struct cfjails depend;
229extern const char *cfname;
230extern int iflag;
231extern int note_remove;
232extern int paralimit;
233extern int verbose;
| 54
55#define JF_START 0x0001 /* -c */
56#define JF_SET 0x0002 /* -m */
57#define JF_STOP 0x0004 /* -r */
58#define JF_DEPEND 0x0008 /* Operation required by dependency */
59#define JF_WILD 0x0010 /* Not specified on the command line */
60#define JF_FAILED 0x0020 /* Operation failed */
61#define JF_PARAMS 0x0040 /* Parameters checked and imported */
62#define JF_RDTUN 0x0080 /* Create-only parameter check has been done */
63#define JF_PERSIST 0x0100 /* Jail is temporarily persistent */
64#define JF_TIMEOUT 0x0200 /* A command (or process kill) timed out */
65#define JF_SLEEPQ 0x0400 /* Waiting on a command and/or timeout */
66
67#define JF_OP_MASK (JF_START | JF_SET | JF_STOP)
68#define JF_RESTART (JF_START | JF_STOP)
69#define JF_START_SET (JF_START | JF_SET)
70#define JF_SET_RESTART (JF_SET | JF_STOP)
71#define JF_START_SET_RESTART (JF_START | JF_SET | JF_STOP)
72#define JF_DO_STOP(js) (((js) & (JF_SET | JF_STOP)) == JF_STOP)
73
74enum intparam {
75 IP__NULL = 0, /* Null command */
76 IP_ALLOW_DYING, /* Allow making changes to a dying jail */
77 IP_COMMAND, /* Command run inside jail at creation */
78 IP_DEPEND, /* Jail starts after (stops before) another */
79 IP_EXEC_CLEAN, /* Run commands in a clean environment */
80 IP_EXEC_CONSOLELOG, /* Redirect optput for commands run in jail */
81 IP_EXEC_FIB, /* Run jailed commands with this FIB */
82 IP_EXEC_JAIL_USER, /* Run jailed commands as this user */
83 IP_EXEC_POSTSTART, /* Commands run outside jail after creating */
84 IP_EXEC_POSTSTOP, /* Commands run outside jail after removing */
85 IP_EXEC_PRESTART, /* Commands run outside jail before creating */
86 IP_EXEC_PRESTOP, /* Commands run outside jail before removing */
87 IP_EXEC_START, /* Commands run inside jail on creation */
88 IP_EXEC_STOP, /* Commands run inside jail on removal */
89 IP_EXEC_SYSTEM_JAIL_USER,/* Get jail_user from system passwd file */
90 IP_EXEC_SYSTEM_USER, /* Run non-jailed commands as this user */
91 IP_EXEC_TIMEOUT, /* Time to wait for a command to complete */
92#if defined(INET) || defined(INET6)
93 IP_INTERFACE, /* Add IP addresses to this interface */
94 IP_IP_HOSTNAME, /* Get jail IP address(es) from hostname */
95#endif
96 IP_MOUNT, /* Mount points in fstab(5) form */
97 IP_MOUNT_DEVFS, /* Mount /dev under prison root */
98 IP_MOUNT_FSTAB, /* A standard fstab(5) file */
99 IP_STOP_TIMEOUT, /* Time to wait after sending SIGTERM */
100 IP_VNET_INTERFACE, /* Assign interface(s) to vnet jail */
101#ifdef INET
102 IP__IP4_IFADDR, /* Copy of ip4.addr with interface/netmask */
103#endif
104#ifdef INET6
105 IP__IP6_IFADDR, /* Copy of ip6.addr with interface/prefixlen */
106#endif
107 IP__MOUNT_FROM_FSTAB, /* Line from mount.fstab file */
108 IP__OP, /* Placeholder for requested operation */
109 KP_ALLOW_CHFLAGS,
110 KP_ALLOW_MOUNT,
111 KP_ALLOW_RAW_SOCKETS,
112 KP_ALLOW_SET_HOSTNAME,
113 KP_ALLOW_SOCKET_AF,
114 KP_ALLOW_SYSVIPC,
115 KP_DEVFS_RULESET,
116 KP_ENFORCE_STATFS,
117 KP_HOST_HOSTNAME,
118#ifdef INET
119 KP_IP4_ADDR,
120#endif
121#ifdef INET6
122 KP_IP6_ADDR,
123#endif
124 KP_JID,
125 KP_NAME,
126 KP_PATH,
127 KP_PERSIST,
128 KP_SECURELEVEL,
129 KP_VNET,
130 IP_NPARAM
131};
132
133STAILQ_HEAD(cfvars, cfvar);
134
135struct cfvar {
136 STAILQ_ENTRY(cfvar) tq;
137 char *name;
138 size_t pos;
139};
140
141TAILQ_HEAD(cfstrings, cfstring);
142
143struct cfstring {
144 TAILQ_ENTRY(cfstring) tq;
145 char *s;
146 size_t len;
147 struct cfvars vars;
148};
149
150TAILQ_HEAD(cfparams, cfparam);
151
152struct cfparam {
153 TAILQ_ENTRY(cfparam) tq;
154 char *name;
155 struct cfstrings val;
156 unsigned flags;
157 int gen;
158};
159
160TAILQ_HEAD(cfjails, cfjail);
161STAILQ_HEAD(cfdepends, cfdepend);
162
163struct cfjail {
164 TAILQ_ENTRY(cfjail) tq;
165 char *name;
166 char *comline;
167 struct cfparams params;
168 struct cfdepends dep[2];
169 struct cfjails *queue;
170 struct cfparam *intparams[IP_NPARAM];
171 struct cfstring *comstring;
172 struct jailparam *jp;
173 struct timespec timeout;
174 const enum intparam *comparam;
175 unsigned flags;
176 int jid;
177 int seq;
178 int pstatus;
179 int ndeps;
180 int njp;
181 int nprocs;
182};
183
184struct cfdepend {
185 STAILQ_ENTRY(cfdepend) tq[2];
186 struct cfjail *j[2];
187 unsigned flags;
188};
189
190extern void *emalloc(size_t);
191extern void *erealloc(void *, size_t);
192extern char *estrdup(const char *);
193extern int create_jail(struct cfjail *j);
194extern void failed(struct cfjail *j);
195extern void jail_note(const struct cfjail *j, const char *fmt, ...);
196extern void jail_warnx(const struct cfjail *j, const char *fmt, ...);
197
198extern int next_command(struct cfjail *j);
199extern int finish_command(struct cfjail *j);
200extern struct cfjail *next_proc(int nonblock);
201
202extern void load_config(void);
203extern struct cfjail *add_jail(void);
204extern void add_param(struct cfjail *j, const struct cfparam *p,
205 enum intparam ipnum, const char *value);
206extern int bool_param(const struct cfparam *p);
207extern int int_param(const struct cfparam *p, int *ip);
208extern const char *string_param(const struct cfparam *p);
209extern int check_intparams(struct cfjail *j);
210extern int import_params(struct cfjail *j);
211extern int equalopts(const char *opt1, const char *opt2);
212extern int wild_jail_name(const char *wname);
213extern int wild_jail_match(const char *jname, const char *wname);
214
215extern void dep_setup(int docf);
216extern int dep_check(struct cfjail *j);
217extern void dep_done(struct cfjail *j, unsigned flags);
218extern void dep_reset(struct cfjail *j);
219extern struct cfjail *next_jail(void);
220extern int start_state(const char *target, int docf, unsigned state,
221 int running);
222extern void requeue(struct cfjail *j, struct cfjails *queue);
223
224extern void yyerror(const char *);
225extern int yylex(void);
226
227extern struct cfjails cfjails;
228extern struct cfjails ready;
229extern struct cfjails depend;
230extern const char *cfname;
231extern int iflag;
232extern int note_remove;
233extern int paralimit;
234extern int verbose;
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