1/*-
2 * Copyright (c) 2010 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 */
26
27#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2010 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 */
26
27#include <sys/cdefs.h>
|
28__FBSDID("$FreeBSD: projects/jailconf/usr.sbin/jail/config.c 214433 2010-10-27 20:25:55Z jamie $");
| 28__FBSDID("$FreeBSD: projects/jailconf/usr.sbin/jail/config.c 214649 2010-11-01 21:37:28Z jamie $");
|
29
30#include <sys/types.h>
31#include <sys/socket.h>
32#include <sys/sysctl.h>
33
34#include <arpa/inet.h>
35#include <netinet/in.h>
36
37#include <err.h>
38#include <netdb.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42
43#include "jailp.h"
44
45struct ipspec {
46 const char *name;
47 unsigned flags;
48};
49
50extern FILE *yyin;
51extern int yynerrs;
52
53struct cfjails cfjails = TAILQ_HEAD_INITIALIZER(cfjails);
54
55static void free_param(struct cfparams *pp, struct cfparam *p);
56static void free_param_strings(struct cfparam *p);
57
58static const struct ipspec intparams[] = {
59 [IP_ALLOW_DYING] = {"allow.dying", PF_INTERNAL | PF_BOOL},
60 [IP_COMMAND] = {"command", PF_INTERNAL},
61 [IP_DEPEND] = {"depend", PF_INTERNAL},
62 [IP_EXEC_CLEAN] = {"exec.clean", PF_INTERNAL | PF_BOOL},
63 [IP_EXEC_CONSOLELOG] = {"exec.consolelog", PF_INTERNAL},
64 [IP_EXEC_FIB] = {"exec.fib", PF_INTERNAL | PF_INT},
65 [IP_EXEC_JAIL_USER] = {"exec.jail_user", PF_INTERNAL},
66 [IP_EXEC_POSTSTART] = {"exec.poststart", PF_INTERNAL},
67 [IP_EXEC_POSTSTOP] = {"exec.poststop", PF_INTERNAL},
68 [IP_EXEC_PRESTART] = {"exec.prestart", PF_INTERNAL},
69 [IP_EXEC_PRESTOP] = {"exec.prestop", PF_INTERNAL},
70 [IP_EXEC_START] = {"exec.start", PF_INTERNAL},
71 [IP_EXEC_STOP] = {"exec.stop", PF_INTERNAL},
72 [IP_EXEC_SYSTEM_JAIL_USER]= {"exec.system_jail_user",
73 PF_INTERNAL | PF_BOOL},
74 [IP_EXEC_SYSTEM_USER] = {"exec.system_user", PF_INTERNAL},
75 [IP_EXEC_TIMEOUT] = {"exec.timeout", PF_INTERNAL | PF_INT},
76 [IP_INTERFACE] = {"interface", PF_INTERNAL},
77 [IP_IP_HOSTNAME] = {"ip_hostname", PF_INTERNAL | PF_BOOL},
78 [IP_MOUNT] = {"mount", PF_INTERNAL},
79 [IP_MOUNT_DEVFS] = {"mount.devfs", PF_INTERNAL | PF_BOOL},
80 [IP_MOUNT_DEVFS_RULESET]= {"mount.devfs.ruleset", PF_INTERNAL},
81 [IP_MOUNT_FSTAB] = {"mount.fstab", PF_INTERNAL},
82 [IP_STOP_TIMEOUT] = {"stop.timeout", PF_INTERNAL | PF_INT},
83 [IP_VNET_INTERFACE] = {"vnet.interface", PF_INTERNAL},
84 [IP__IP4_IFADDR] = {"ip4.addr", PF_INTERNAL | PF_CONV},
85#ifdef INET6
86 [IP__IP6_IFADDR] = {"ip6.addr", PF_INTERNAL | PF_CONV},
87#endif
88 [KP_ALLOW_CHFLAGS] = {"allow.chflags", 0},
89 [KP_ALLOW_MOUNT] = {"allow.mount", 0},
90 [KP_ALLOW_RAW_SOCKETS] = {"allow.raw_sockets", 0},
91 [KP_ALLOW_SET_HOSTNAME]= {"allow.set_hostname", 0},
92 [KP_ALLOW_SOCKET_AF] = {"allow.socket_af", 0},
93 [KP_ALLOW_SYSVIPC] = {"allow.sysvipc", 0},
94 [KP_ENFORCE_STATFS] = {"enforce_statfs", 0},
95 [KP_HOST_HOSTNAME] = {"host.hostname", 0},
96 [KP_IP4_ADDR] = {"ip4.addr", 0},
97#ifdef INET6
98 [KP_IP6_ADDR] = {"ip6.addr", 0},
99#endif
100 [KP_JID] = {"jid", 0},
101 [KP_NAME] = {"name", 0},
102 [KP_PATH] = {"path", 0},
103 [KP_PERSIST] = {"persist", 0},
104 [KP_SECURELEVEL] = {"securelevel", 0},
105 [KP_VNET] = {"vnet", 0},
106};
107
108/*
109 * Parse the jail configuration file.
110 */
111void
112load_config(void)
113{
114 struct cfjails wild;
115 struct cfparams opp;
116 struct cfjail *j, *tj, *wj;
117 struct cfparam *p, *vp, *tp;
118 struct cfstring *s, *vs, *ns;
119 struct cfvar *v;
120 char *ep;
121 size_t varoff;
122 int did_self, jseq, pgen;
123
124 if (!strcmp(cfname, "-")) {
125 cfname = "STDIN";
126 yyin = stdin;
127 } else {
128 yyin = fopen(cfname, "r");
129 if (!yyin)
130 err(1, "%s", cfname);
131 }
132 if (yyparse() || yynerrs)
133 exit(1);
134
135 /* Separate the wildcard jails out from the actual jails. */
136 jseq = 0;
137 TAILQ_INIT(&wild);
138 TAILQ_FOREACH_SAFE(j, &cfjails, tq, tj) {
139 j->seq = ++jseq;
140 if (wild_jail_name(j->name))
141 requeue(j, &wild);
142 }
143
144 TAILQ_FOREACH(j, &cfjails, tq) {
145 /* Set aside the jail's parameters. */
146 TAILQ_INIT(&opp);
147 TAILQ_CONCAT(&opp, &j->params, tq);
148 /*
149 * The jail name implies its "name" or "jid" parameter,
150 * though they may also be explicitly set later on.
151 */
152 add_param(j, NULL,
153 strtol(j->name, &ep, 10) && !*ep ? KP_JID : KP_NAME,
154 j->name);
155 /*
156 * Collect parameters for the jail, global parameters/variables,
157 * and any matching wildcard jails.
158 */
159 did_self = 0;
160 TAILQ_FOREACH(wj, &wild, tq) {
161 if (j->seq < wj->seq && !did_self) {
162 TAILQ_FOREACH(p, &opp, tq)
163 add_param(j, p, 0, NULL);
164 did_self = 1;
165 }
166 if (wild_jail_match(j->name, wj->name))
167 TAILQ_FOREACH(p, &wj->params, tq)
168 add_param(j, p, 0, NULL);
169 }
170 if (!did_self)
171 TAILQ_FOREACH(p, &opp, tq)
172 add_param(j, p, 0, NULL);
173
174 /* Resolve any variable substitutions. */
175 pgen = 0;
176 TAILQ_FOREACH(p, &j->params, tq) {
177 p->gen = ++pgen;
178 find_vars:
179 STAILQ_FOREACH(s, &p->val, tq) {
180 varoff = 0;
181 while ((v = STAILQ_FIRST(&s->vars))) {
182 TAILQ_FOREACH(vp, &j->params, tq)
183 if (!strcmp(vp->name, v->name))
184 break;
185 if (!vp) {
186 jail_warnx(j,
187 "%s: variable \"%s\" not found",
188 p->name, v->name);
189 bad_var:
190 j->flags |= JF_FAILED;
191 TAILQ_FOREACH(vp, &j->params, tq)
192 if (vp->gen == pgen)
193 vp->flags |= PF_BAD;
194 goto free_var;
195 }
196 if (vp->flags & PF_BAD)
197 goto bad_var;
198 if (vp->gen == pgen) {
199 jail_warnx(j, "%s: variable loop",
200 v->name);
201 goto bad_var;
202 }
203 STAILQ_FOREACH(vs, &vp->val, tq)
204 if (!STAILQ_EMPTY(&vs->vars)) {
205 vp->gen = pgen;
206 TAILQ_REMOVE(&j->params, vp,
207 tq);
208 TAILQ_INSERT_BEFORE(p, vp, tq);
209 p = vp;
210 goto find_vars;
211 }
212 vs = STAILQ_FIRST(&vp->val);
213 if (STAILQ_NEXT(vs, tq) != NULL &&
214 (s->s[0] != '\0' ||
215 STAILQ_NEXT(v, tq))) {
216 jail_warnx(j, "%s: array cannot be "
217 "substituted inline",
218 p->name);
219 goto bad_var;
220 }
221 s->s = erealloc(s->s, s->len + vs->len + 1);
222 memmove(s->s + v->pos + varoff + vs->len,
223 s->s + v->pos + varoff,
224 s->len - (v->pos + varoff) + 1);
225 memcpy(s->s + v->pos + varoff, vs->s, vs->len);
226 varoff += vs->len;
227 s->len += vs->len;
228 while ((vs = STAILQ_NEXT(vs, tq))) {
229 ns = emalloc(sizeof(struct cfstring));
230 ns->s = estrdup(vs->s);
231 ns->len = vs->len;
232 STAILQ_INIT(&ns->vars);
233 STAILQ_INSERT_AFTER(&p->val, s, ns, tq);
234 s = ns;
235 }
236 free_var:
237 free(v->name);
238 STAILQ_REMOVE_HEAD(&s->vars, tq);
239 free(v);
240 }
241 }
242 }
243
244 /* Free the jail's original parameter list and any variables. */
245 while ((p = TAILQ_FIRST(&opp)))
246 free_param(&opp, p);
247 TAILQ_FOREACH_SAFE(p, &j->params, tq, tp)
248 if (p->flags & PF_VAR)
249 free_param(&j->params, p);
250 }
251 while ((wj = TAILQ_FIRST(&wild))) {
252 free(wj->name);
253 while ((p = TAILQ_FIRST(&wj->params)))
254 free_param(&wj->params, p);
255 TAILQ_REMOVE(&wild, wj, tq);
256 }
257}
258
259/*
260 * Create a new jail record.
261 */
262struct cfjail *
263add_jail(void)
264{
265 struct cfjail *j;
266
267 j = emalloc(sizeof(struct cfjail));
268 memset(j, 0, sizeof(struct cfjail));
269 TAILQ_INIT(&j->params);
270 STAILQ_INIT(&j->dep[DEP_FROM]);
271 STAILQ_INIT(&j->dep[DEP_TO]);
272 j->queue = &cfjails;
273 TAILQ_INSERT_TAIL(&cfjails, j, tq);
274 return j;
275}
276
277/*
278 * Add a parameter to a jail.
279 */
280void
281add_param(struct cfjail *j, const struct cfparam *p, enum intparam ipnum,
282 const char *value)
283{
284 struct cfstrings nss;
285 struct cfparam *dp, *np;
286 struct cfstring *s, *ns;
287 struct cfvar *v, *nv;
288 struct ipspec *ips;
289 const char *name;
290 char *cs, *tname;
291 unsigned flags;
292
293 if (j == NULL) {
294 /* Create a single anonymous jail if one doesn't yet exist. */
295 j = TAILQ_LAST(&cfjails, cfjails);
296 if (j == NULL)
297 j = add_jail();
298 }
299 STAILQ_INIT(&nss);
300 if (p != NULL) {
301 name = p->name;
302 flags = p->flags;
303 /*
304 * Make a copy of the parameter's string list,
305 * which may be freed if it's overridden later.
306 */
307 STAILQ_FOREACH(s, &p->val, tq) {
308 ns = emalloc(sizeof(struct cfstring));
309 ns->s = estrdup(s->s);
310 ns->len = s->len;
311 STAILQ_INIT(&ns->vars);
312 STAILQ_FOREACH(v, &s->vars, tq) {
313 nv = emalloc(sizeof(struct cfvar));
314 nv->name = strdup(v->name);
315 nv->pos = v->pos;
316 STAILQ_INSERT_TAIL(&ns->vars, nv, tq);
317 }
318 STAILQ_INSERT_TAIL(&nss, ns, tq);
319 }
320 } else {
321 flags = PF_APPEND;
322 if (ipnum != 0) {
323 name = intparams[ipnum].name;
324 flags |= intparams[ipnum].flags;
325 } else if ((cs = strchr(value, '='))) {
326 tname = alloca(cs - value + 1);
327 strlcpy(tname, value, cs - value + 1);
328 name = tname;
329 value = cs + 1;
330 } else {
331 name = value;
332 value = NULL;
333 }
334 if (value != NULL) {
335 ns = emalloc(sizeof(struct cfstring));
336 ns->s = estrdup(value);
337 ns->len = strlen(value);
338 STAILQ_INIT(&ns->vars);
339 STAILQ_INSERT_TAIL(&nss, ns, tq);
340 }
341 }
342
343 /* See if this parameter has already been added. */
344 if (ipnum != 0)
345 dp = j->intparams[ipnum];
346 else
347 TAILQ_FOREACH(dp, &j->params, tq)
348 if (!(dp->flags & PF_CONV) && equalopts(dp->name, name))
349 break;
350 if (dp != NULL) {
351 /* Found it - append or replace. */
352 if (strcmp(dp->name, name)) {
353 free(dp->name);
354 dp->name = estrdup(name);
355 }
356 if (!(flags & PF_APPEND) || STAILQ_EMPTY(&nss))
357 free_param_strings(dp);
358 STAILQ_CONCAT(&dp->val, &nss);
359 dp->flags |= flags;
360 } else {
361 /* Not found - add it. */
362 np = emalloc(sizeof(struct cfparam));
363 np->name = estrdup(name);
364 STAILQ_INIT(&np->val);
365 STAILQ_CONCAT(&np->val, &nss);
366 np->flags = flags;
367 np->gen = 0;
368 TAILQ_INSERT_TAIL(&j->params, np, tq);
369 if (ipnum != 0)
370 j->intparams[ipnum] = np;
371 else
372 for (ipnum = 1; ipnum < IP_NPARAM; ipnum++)
373 if (!(intparams[ipnum].flags & PF_CONV) &&
374 equalopts(name, intparams[ipnum].name)) {
375 j->intparams[ipnum] = np;
376 np->flags |= intparams[ipnum].flags;
377 break;
378 }
379 }
380}
381
382/*
| 29
30#include <sys/types.h>
31#include <sys/socket.h>
32#include <sys/sysctl.h>
33
34#include <arpa/inet.h>
35#include <netinet/in.h>
36
37#include <err.h>
38#include <netdb.h>
39#include <stdio.h>
40#include <stdlib.h>
41#include <string.h>
42
43#include "jailp.h"
44
45struct ipspec {
46 const char *name;
47 unsigned flags;
48};
49
50extern FILE *yyin;
51extern int yynerrs;
52
53struct cfjails cfjails = TAILQ_HEAD_INITIALIZER(cfjails);
54
55static void free_param(struct cfparams *pp, struct cfparam *p);
56static void free_param_strings(struct cfparam *p);
57
58static const struct ipspec intparams[] = {
59 [IP_ALLOW_DYING] = {"allow.dying", PF_INTERNAL | PF_BOOL},
60 [IP_COMMAND] = {"command", PF_INTERNAL},
61 [IP_DEPEND] = {"depend", PF_INTERNAL},
62 [IP_EXEC_CLEAN] = {"exec.clean", PF_INTERNAL | PF_BOOL},
63 [IP_EXEC_CONSOLELOG] = {"exec.consolelog", PF_INTERNAL},
64 [IP_EXEC_FIB] = {"exec.fib", PF_INTERNAL | PF_INT},
65 [IP_EXEC_JAIL_USER] = {"exec.jail_user", PF_INTERNAL},
66 [IP_EXEC_POSTSTART] = {"exec.poststart", PF_INTERNAL},
67 [IP_EXEC_POSTSTOP] = {"exec.poststop", PF_INTERNAL},
68 [IP_EXEC_PRESTART] = {"exec.prestart", PF_INTERNAL},
69 [IP_EXEC_PRESTOP] = {"exec.prestop", PF_INTERNAL},
70 [IP_EXEC_START] = {"exec.start", PF_INTERNAL},
71 [IP_EXEC_STOP] = {"exec.stop", PF_INTERNAL},
72 [IP_EXEC_SYSTEM_JAIL_USER]= {"exec.system_jail_user",
73 PF_INTERNAL | PF_BOOL},
74 [IP_EXEC_SYSTEM_USER] = {"exec.system_user", PF_INTERNAL},
75 [IP_EXEC_TIMEOUT] = {"exec.timeout", PF_INTERNAL | PF_INT},
76 [IP_INTERFACE] = {"interface", PF_INTERNAL},
77 [IP_IP_HOSTNAME] = {"ip_hostname", PF_INTERNAL | PF_BOOL},
78 [IP_MOUNT] = {"mount", PF_INTERNAL},
79 [IP_MOUNT_DEVFS] = {"mount.devfs", PF_INTERNAL | PF_BOOL},
80 [IP_MOUNT_DEVFS_RULESET]= {"mount.devfs.ruleset", PF_INTERNAL},
81 [IP_MOUNT_FSTAB] = {"mount.fstab", PF_INTERNAL},
82 [IP_STOP_TIMEOUT] = {"stop.timeout", PF_INTERNAL | PF_INT},
83 [IP_VNET_INTERFACE] = {"vnet.interface", PF_INTERNAL},
84 [IP__IP4_IFADDR] = {"ip4.addr", PF_INTERNAL | PF_CONV},
85#ifdef INET6
86 [IP__IP6_IFADDR] = {"ip6.addr", PF_INTERNAL | PF_CONV},
87#endif
88 [KP_ALLOW_CHFLAGS] = {"allow.chflags", 0},
89 [KP_ALLOW_MOUNT] = {"allow.mount", 0},
90 [KP_ALLOW_RAW_SOCKETS] = {"allow.raw_sockets", 0},
91 [KP_ALLOW_SET_HOSTNAME]= {"allow.set_hostname", 0},
92 [KP_ALLOW_SOCKET_AF] = {"allow.socket_af", 0},
93 [KP_ALLOW_SYSVIPC] = {"allow.sysvipc", 0},
94 [KP_ENFORCE_STATFS] = {"enforce_statfs", 0},
95 [KP_HOST_HOSTNAME] = {"host.hostname", 0},
96 [KP_IP4_ADDR] = {"ip4.addr", 0},
97#ifdef INET6
98 [KP_IP6_ADDR] = {"ip6.addr", 0},
99#endif
100 [KP_JID] = {"jid", 0},
101 [KP_NAME] = {"name", 0},
102 [KP_PATH] = {"path", 0},
103 [KP_PERSIST] = {"persist", 0},
104 [KP_SECURELEVEL] = {"securelevel", 0},
105 [KP_VNET] = {"vnet", 0},
106};
107
108/*
109 * Parse the jail configuration file.
110 */
111void
112load_config(void)
113{
114 struct cfjails wild;
115 struct cfparams opp;
116 struct cfjail *j, *tj, *wj;
117 struct cfparam *p, *vp, *tp;
118 struct cfstring *s, *vs, *ns;
119 struct cfvar *v;
120 char *ep;
121 size_t varoff;
122 int did_self, jseq, pgen;
123
124 if (!strcmp(cfname, "-")) {
125 cfname = "STDIN";
126 yyin = stdin;
127 } else {
128 yyin = fopen(cfname, "r");
129 if (!yyin)
130 err(1, "%s", cfname);
131 }
132 if (yyparse() || yynerrs)
133 exit(1);
134
135 /* Separate the wildcard jails out from the actual jails. */
136 jseq = 0;
137 TAILQ_INIT(&wild);
138 TAILQ_FOREACH_SAFE(j, &cfjails, tq, tj) {
139 j->seq = ++jseq;
140 if (wild_jail_name(j->name))
141 requeue(j, &wild);
142 }
143
144 TAILQ_FOREACH(j, &cfjails, tq) {
145 /* Set aside the jail's parameters. */
146 TAILQ_INIT(&opp);
147 TAILQ_CONCAT(&opp, &j->params, tq);
148 /*
149 * The jail name implies its "name" or "jid" parameter,
150 * though they may also be explicitly set later on.
151 */
152 add_param(j, NULL,
153 strtol(j->name, &ep, 10) && !*ep ? KP_JID : KP_NAME,
154 j->name);
155 /*
156 * Collect parameters for the jail, global parameters/variables,
157 * and any matching wildcard jails.
158 */
159 did_self = 0;
160 TAILQ_FOREACH(wj, &wild, tq) {
161 if (j->seq < wj->seq && !did_self) {
162 TAILQ_FOREACH(p, &opp, tq)
163 add_param(j, p, 0, NULL);
164 did_self = 1;
165 }
166 if (wild_jail_match(j->name, wj->name))
167 TAILQ_FOREACH(p, &wj->params, tq)
168 add_param(j, p, 0, NULL);
169 }
170 if (!did_self)
171 TAILQ_FOREACH(p, &opp, tq)
172 add_param(j, p, 0, NULL);
173
174 /* Resolve any variable substitutions. */
175 pgen = 0;
176 TAILQ_FOREACH(p, &j->params, tq) {
177 p->gen = ++pgen;
178 find_vars:
179 STAILQ_FOREACH(s, &p->val, tq) {
180 varoff = 0;
181 while ((v = STAILQ_FIRST(&s->vars))) {
182 TAILQ_FOREACH(vp, &j->params, tq)
183 if (!strcmp(vp->name, v->name))
184 break;
185 if (!vp) {
186 jail_warnx(j,
187 "%s: variable \"%s\" not found",
188 p->name, v->name);
189 bad_var:
190 j->flags |= JF_FAILED;
191 TAILQ_FOREACH(vp, &j->params, tq)
192 if (vp->gen == pgen)
193 vp->flags |= PF_BAD;
194 goto free_var;
195 }
196 if (vp->flags & PF_BAD)
197 goto bad_var;
198 if (vp->gen == pgen) {
199 jail_warnx(j, "%s: variable loop",
200 v->name);
201 goto bad_var;
202 }
203 STAILQ_FOREACH(vs, &vp->val, tq)
204 if (!STAILQ_EMPTY(&vs->vars)) {
205 vp->gen = pgen;
206 TAILQ_REMOVE(&j->params, vp,
207 tq);
208 TAILQ_INSERT_BEFORE(p, vp, tq);
209 p = vp;
210 goto find_vars;
211 }
212 vs = STAILQ_FIRST(&vp->val);
213 if (STAILQ_NEXT(vs, tq) != NULL &&
214 (s->s[0] != '\0' ||
215 STAILQ_NEXT(v, tq))) {
216 jail_warnx(j, "%s: array cannot be "
217 "substituted inline",
218 p->name);
219 goto bad_var;
220 }
221 s->s = erealloc(s->s, s->len + vs->len + 1);
222 memmove(s->s + v->pos + varoff + vs->len,
223 s->s + v->pos + varoff,
224 s->len - (v->pos + varoff) + 1);
225 memcpy(s->s + v->pos + varoff, vs->s, vs->len);
226 varoff += vs->len;
227 s->len += vs->len;
228 while ((vs = STAILQ_NEXT(vs, tq))) {
229 ns = emalloc(sizeof(struct cfstring));
230 ns->s = estrdup(vs->s);
231 ns->len = vs->len;
232 STAILQ_INIT(&ns->vars);
233 STAILQ_INSERT_AFTER(&p->val, s, ns, tq);
234 s = ns;
235 }
236 free_var:
237 free(v->name);
238 STAILQ_REMOVE_HEAD(&s->vars, tq);
239 free(v);
240 }
241 }
242 }
243
244 /* Free the jail's original parameter list and any variables. */
245 while ((p = TAILQ_FIRST(&opp)))
246 free_param(&opp, p);
247 TAILQ_FOREACH_SAFE(p, &j->params, tq, tp)
248 if (p->flags & PF_VAR)
249 free_param(&j->params, p);
250 }
251 while ((wj = TAILQ_FIRST(&wild))) {
252 free(wj->name);
253 while ((p = TAILQ_FIRST(&wj->params)))
254 free_param(&wj->params, p);
255 TAILQ_REMOVE(&wild, wj, tq);
256 }
257}
258
259/*
260 * Create a new jail record.
261 */
262struct cfjail *
263add_jail(void)
264{
265 struct cfjail *j;
266
267 j = emalloc(sizeof(struct cfjail));
268 memset(j, 0, sizeof(struct cfjail));
269 TAILQ_INIT(&j->params);
270 STAILQ_INIT(&j->dep[DEP_FROM]);
271 STAILQ_INIT(&j->dep[DEP_TO]);
272 j->queue = &cfjails;
273 TAILQ_INSERT_TAIL(&cfjails, j, tq);
274 return j;
275}
276
277/*
278 * Add a parameter to a jail.
279 */
280void
281add_param(struct cfjail *j, const struct cfparam *p, enum intparam ipnum,
282 const char *value)
283{
284 struct cfstrings nss;
285 struct cfparam *dp, *np;
286 struct cfstring *s, *ns;
287 struct cfvar *v, *nv;
288 struct ipspec *ips;
289 const char *name;
290 char *cs, *tname;
291 unsigned flags;
292
293 if (j == NULL) {
294 /* Create a single anonymous jail if one doesn't yet exist. */
295 j = TAILQ_LAST(&cfjails, cfjails);
296 if (j == NULL)
297 j = add_jail();
298 }
299 STAILQ_INIT(&nss);
300 if (p != NULL) {
301 name = p->name;
302 flags = p->flags;
303 /*
304 * Make a copy of the parameter's string list,
305 * which may be freed if it's overridden later.
306 */
307 STAILQ_FOREACH(s, &p->val, tq) {
308 ns = emalloc(sizeof(struct cfstring));
309 ns->s = estrdup(s->s);
310 ns->len = s->len;
311 STAILQ_INIT(&ns->vars);
312 STAILQ_FOREACH(v, &s->vars, tq) {
313 nv = emalloc(sizeof(struct cfvar));
314 nv->name = strdup(v->name);
315 nv->pos = v->pos;
316 STAILQ_INSERT_TAIL(&ns->vars, nv, tq);
317 }
318 STAILQ_INSERT_TAIL(&nss, ns, tq);
319 }
320 } else {
321 flags = PF_APPEND;
322 if (ipnum != 0) {
323 name = intparams[ipnum].name;
324 flags |= intparams[ipnum].flags;
325 } else if ((cs = strchr(value, '='))) {
326 tname = alloca(cs - value + 1);
327 strlcpy(tname, value, cs - value + 1);
328 name = tname;
329 value = cs + 1;
330 } else {
331 name = value;
332 value = NULL;
333 }
334 if (value != NULL) {
335 ns = emalloc(sizeof(struct cfstring));
336 ns->s = estrdup(value);
337 ns->len = strlen(value);
338 STAILQ_INIT(&ns->vars);
339 STAILQ_INSERT_TAIL(&nss, ns, tq);
340 }
341 }
342
343 /* See if this parameter has already been added. */
344 if (ipnum != 0)
345 dp = j->intparams[ipnum];
346 else
347 TAILQ_FOREACH(dp, &j->params, tq)
348 if (!(dp->flags & PF_CONV) && equalopts(dp->name, name))
349 break;
350 if (dp != NULL) {
351 /* Found it - append or replace. */
352 if (strcmp(dp->name, name)) {
353 free(dp->name);
354 dp->name = estrdup(name);
355 }
356 if (!(flags & PF_APPEND) || STAILQ_EMPTY(&nss))
357 free_param_strings(dp);
358 STAILQ_CONCAT(&dp->val, &nss);
359 dp->flags |= flags;
360 } else {
361 /* Not found - add it. */
362 np = emalloc(sizeof(struct cfparam));
363 np->name = estrdup(name);
364 STAILQ_INIT(&np->val);
365 STAILQ_CONCAT(&np->val, &nss);
366 np->flags = flags;
367 np->gen = 0;
368 TAILQ_INSERT_TAIL(&j->params, np, tq);
369 if (ipnum != 0)
370 j->intparams[ipnum] = np;
371 else
372 for (ipnum = 1; ipnum < IP_NPARAM; ipnum++)
373 if (!(intparams[ipnum].flags & PF_CONV) &&
374 equalopts(name, intparams[ipnum].name)) {
375 j->intparams[ipnum] = np;
376 np->flags |= intparams[ipnum].flags;
377 break;
378 }
379 }
380}
381
382/*
|
383 * Check syntax of internal parameters.
384 */
385int
386check_intparams(struct cfjail *j)
387{
388 struct cfparam *p;
389 const char *val;
390 char *ep;
391 int error;
392
393 error = 0;
394 TAILQ_FOREACH(p, &j->params, tq) {
395 if (!STAILQ_EMPTY(&p->val) &&
396 (p->flags & (PF_BOOL | PF_INT))) {
397 val = STAILQ_LAST(&p->val, cfstring, tq)->s;
398 if (p->flags & PF_BOOL) {
399 if (strcasecmp(val, "false") &&
400 strcasecmp(val, "true") &&
401 ((void)strtol(val, &ep, 10), *ep)) {
402 jail_warnx(j,
403 "%s: unknown boolean value \"%s\"",
404 p->name, val);
405 error = -1;
406 }
407 } else {
408 (void)strtol(val, &ep, 10);
409 if (ep == val || *ep) {
410 jail_warnx(j,
411 "%s: non-integer value \"%s\"",
412 p->name, val);
413 error = -1;
414 }
415 }
416 }
417 }
418 return error;
419}
420
421/*
| |
422 * Return if a boolean parameter exists and is true.
423 */
424int
425bool_param(const struct cfparam *p)
426{
427 const char *cs;
428
429 if (p == NULL)
430 return 0;
431 cs = strrchr(p->name, '.');
432 return !strncmp(cs ? cs + 1 : p->name, "no", 2) ^
433 (STAILQ_EMPTY(&p->val) ||
434 !strcasecmp(STAILQ_LAST(&p->val, cfstring, tq)->s, "true") ||
435 (strtol(STAILQ_LAST(&p->val, cfstring, tq)->s, NULL, 10)));
436}
437
438/*
439 * Set an integer if a parameter if it exists.
440 */
441int
442int_param(const struct cfparam *p, int *ip)
443{
444 if (p == NULL || STAILQ_EMPTY(&p->val))
445 return 0;
446 *ip = strtol(STAILQ_LAST(&p->val, cfstring, tq)->s, NULL, 10);
447 return 1;
448}
449
450/*
451 * Return the string value of a scalar parameter if it exists.
452 */
453const char *
454string_param(const struct cfparam *p)
455{
456 return (p && !STAILQ_EMPTY(&p->val)
457 ? STAILQ_LAST(&p->val, cfstring, tq)->s : NULL);
458}
459
460/*
| 383 * Return if a boolean parameter exists and is true.
384 */
385int
386bool_param(const struct cfparam *p)
387{
388 const char *cs;
389
390 if (p == NULL)
391 return 0;
392 cs = strrchr(p->name, '.');
393 return !strncmp(cs ? cs + 1 : p->name, "no", 2) ^
394 (STAILQ_EMPTY(&p->val) ||
395 !strcasecmp(STAILQ_LAST(&p->val, cfstring, tq)->s, "true") ||
396 (strtol(STAILQ_LAST(&p->val, cfstring, tq)->s, NULL, 10)));
397}
398
399/*
400 * Set an integer if a parameter if it exists.
401 */
402int
403int_param(const struct cfparam *p, int *ip)
404{
405 if (p == NULL || STAILQ_EMPTY(&p->val))
406 return 0;
407 *ip = strtol(STAILQ_LAST(&p->val, cfstring, tq)->s, NULL, 10);
408 return 1;
409}
410
411/*
412 * Return the string value of a scalar parameter if it exists.
413 */
414const char *
415string_param(const struct cfparam *p)
416{
417 return (p && !STAILQ_EMPTY(&p->val)
418 ? STAILQ_LAST(&p->val, cfstring, tq)->s : NULL);
419}
420
421/*
|
461 * Look up extra IP addresses from the hostname and save interface and netmask.
| 422 * Check syntax and values of internal parameters. Set some internal
423 * parameters based on the values of others.
|
462 */
463int
| 424 */
425int
|
464ip_params(struct cfjail *j)
| 426check_intparams(struct cfjail *j)
|
465{
466 struct in_addr addr4;
| 427{
428 struct in_addr addr4;
|
467 struct addrinfo hints, *ai0, *ai;
| 429 struct addrinfo hints;
430 struct addrinfo *ai0, *ai;
431 struct cfparam *p;
|
468 struct cfstring *s, *ns;
| 432 struct cfstring *s, *ns;
|
| 433 const char *hostname, *val;
|
469 char *cs, *ep;
| 434 char *cs, *ep;
|
470 const char *hostname;
| |
471 size_t size;
| 435 size_t size;
|
472 int error, ip4ok, defif, prefix;
| 436 int error, gicode, ip4ok, defif, prefix;
|
473 int mib[4];
474 char avalue4[INET_ADDRSTRLEN];
475#ifdef INET6
476 struct in6_addr addr6;
477 int ip6ok, isip6;
478 char avalue6[INET6_ADDRSTRLEN];
479#endif
480
481 error = 0;
| 437 int mib[4];
438 char avalue4[INET_ADDRSTRLEN];
439#ifdef INET6
440 struct in6_addr addr6;
441 int ip6ok, isip6;
442 char avalue6[INET6_ADDRSTRLEN];
443#endif
444
445 error = 0;
|
| 446 /* Check format of boolan and integer values. */
447 TAILQ_FOREACH(p, &j->params, tq) {
448 if (!STAILQ_EMPTY(&p->val) &&
449 (p->flags & (PF_BOOL | PF_INT))) {
450 val = STAILQ_LAST(&p->val, cfstring, tq)->s;
451 if (p->flags & PF_BOOL) {
452 if (strcasecmp(val, "false") &&
453 strcasecmp(val, "true") &&
454 ((void)strtol(val, &ep, 10), *ep)) {
455 jail_warnx(j,
456 "%s: unknown boolean value \"%s\"",
457 p->name, val);
458 error = -1;
459 }
460 } else {
461 (void)strtol(val, &ep, 10);
462 if (ep == val || *ep) {
463 jail_warnx(j,
464 "%s: non-integer value \"%s\"",
465 p->name, val);
466 error = -1;
467 }
468 }
469 }
470 }
471
|
482 /*
483 * The ip_hostname parameter looks up the hostname, and adds parameters
484 * for any IP addresses it finds.
485 */
| 472 /*
473 * The ip_hostname parameter looks up the hostname, and adds parameters
474 * for any IP addresses it finds.
475 */
|
486 if (bool_param(j->intparams[IP_IP_HOSTNAME]) &&
| 476 if (((j->flags & JF_OP_MASK) != JF_STOP ||
477 j->intparams[IP_INTERFACE] != NULL) &&
478 bool_param(j->intparams[IP_IP_HOSTNAME]) &&
|
487 (hostname = string_param(j->intparams[KP_HOST_HOSTNAME]))) {
488 j->intparams[IP_IP_HOSTNAME] = NULL;
489 /*
490 * Silently ignore unsupported address families from
491 * DNS lookups.
492 */
493 size = 4;
494 ip4ok = sysctlnametomib("security.jail.param.ip4", mib, &size)
495 == 0;
496#ifdef INET6
497 size = 4;
498 ip6ok = sysctlnametomib("security.jail.param.ip6", mib, &size)
499 == 0;
500#endif
501 if (ip4ok
502#ifdef INET6
503 || ip6ok
504#endif
505 ) {
506 /* Look up the hostname (or get the address) */
507 memset(&hints, 0, sizeof(hints));
508 hints.ai_socktype = SOCK_STREAM;
509 hints.ai_family =
510#ifdef INET6
511 ip6ok ? (ip4ok ? PF_UNSPEC : PF_INET6) :
512#endif
513 PF_INET;
| 479 (hostname = string_param(j->intparams[KP_HOST_HOSTNAME]))) {
480 j->intparams[IP_IP_HOSTNAME] = NULL;
481 /*
482 * Silently ignore unsupported address families from
483 * DNS lookups.
484 */
485 size = 4;
486 ip4ok = sysctlnametomib("security.jail.param.ip4", mib, &size)
487 == 0;
488#ifdef INET6
489 size = 4;
490 ip6ok = sysctlnametomib("security.jail.param.ip6", mib, &size)
491 == 0;
492#endif
493 if (ip4ok
494#ifdef INET6
495 || ip6ok
496#endif
497 ) {
498 /* Look up the hostname (or get the address) */
499 memset(&hints, 0, sizeof(hints));
500 hints.ai_socktype = SOCK_STREAM;
501 hints.ai_family =
502#ifdef INET6
503 ip6ok ? (ip4ok ? PF_UNSPEC : PF_INET6) :
504#endif
505 PF_INET;
|
514 error = getaddrinfo(hostname, NULL, &hints, &ai0);
515 if (error != 0) {
| 506 gicode = getaddrinfo(hostname, NULL, &hints, &ai0);
507 if (gicode != 0) {
|
516 jail_warnx(j, "host.hostname %s: %s", hostname,
| 508 jail_warnx(j, "host.hostname %s: %s", hostname,
|
517 gai_strerror(error));
| 509 gai_strerror(gicode));
|
518 error = -1;
519 } else {
520 /*
521 * Convert the addresses to ASCII so jailparam
522 * can convert them back. Errors are not
523 * expected here.
524 */
525 for (ai = ai0; ai; ai = ai->ai_next)
526 switch (ai->ai_family) {
527 case AF_INET:
528 memcpy(&addr4,
529 &((struct sockaddr_in *)
530 (void *)ai->ai_addr)->
531 sin_addr, sizeof(addr4));
532 if (inet_ntop(AF_INET,
533 &addr4, avalue4,
534 INET_ADDRSTRLEN) == NULL)
535 err(1, "inet_ntop");
536 add_param(j, NULL, KP_IP4_ADDR,
537 avalue4);
538 break;
539#ifdef INET6
540 case AF_INET6:
541 memcpy(&addr6,
542 &((struct sockaddr_in6 *)
543 (void *)ai->ai_addr)->
544 sin6_addr, sizeof(addr6));
545 if (inet_ntop(AF_INET6,
546 &addr6, avalue6,
547 INET6_ADDRSTRLEN) == NULL)
548 err(1, "inet_ntop");
549 add_param(j, NULL, KP_IP6_ADDR,
550 avalue6);
551 break;
552#endif
553 }
554 freeaddrinfo(ai0);
555 }
556 }
557 }
| 510 error = -1;
511 } else {
512 /*
513 * Convert the addresses to ASCII so jailparam
514 * can convert them back. Errors are not
515 * expected here.
516 */
517 for (ai = ai0; ai; ai = ai->ai_next)
518 switch (ai->ai_family) {
519 case AF_INET:
520 memcpy(&addr4,
521 &((struct sockaddr_in *)
522 (void *)ai->ai_addr)->
523 sin_addr, sizeof(addr4));
524 if (inet_ntop(AF_INET,
525 &addr4, avalue4,
526 INET_ADDRSTRLEN) == NULL)
527 err(1, "inet_ntop");
528 add_param(j, NULL, KP_IP4_ADDR,
529 avalue4);
530 break;
531#ifdef INET6
532 case AF_INET6:
533 memcpy(&addr6,
534 &((struct sockaddr_in6 *)
535 (void *)ai->ai_addr)->
536 sin6_addr, sizeof(addr6));
537 if (inet_ntop(AF_INET6,
538 &addr6, avalue6,
539 INET6_ADDRSTRLEN) == NULL)
540 err(1, "inet_ntop");
541 add_param(j, NULL, KP_IP6_ADDR,
542 avalue6);
543 break;
544#endif
545 }
546 freeaddrinfo(ai0);
547 }
548 }
549 }
|
| 550
|
558 /*
559 * IP addresses may include an interface to set that address on,
560 * and a netmask/suffix for that address.
561 */
562 defif = string_param(j->intparams[IP_INTERFACE]) != NULL;
563#ifdef INET6
564 for (isip6 = 0; isip6 <= 1; isip6++)
565#else
566#define isip6 0
567 do
568#endif
569 {
570 if (j->intparams[KP_IP4_ADDR + isip6] == NULL)
571 continue;
572 STAILQ_FOREACH(s, &j->intparams[KP_IP4_ADDR + isip6]->val, tq) {
573 cs = strchr(s->s, '|');
574 if (cs || defif)
575 add_param(j, NULL, IP__IP4_IFADDR + isip6,
576 s->s);
577 if (cs) {
578 strcpy(s->s, cs + 1);
579 s->len -= cs + 1 - s->s;
580 }
581 if ((cs = strchr(s->s, '/'))) {
582 prefix = strtol(cs + 1, &ep, 10);
583 if (
584#ifdef INET6
585 !isip6 &&
586#endif
587 *ep == '.'
588 ? inet_pton(AF_INET, cs + 1, &addr4) != 1
589 : *ep || prefix < 0 || prefix > (
590#ifdef INET6
591 isip6 ? 128 :
592#endif
593 32)) {
594 jail_warnx(j,
595#ifdef INET6
596 isip6
597 ? "ip6.addr: bad prefixlen \"%s\"" :
598#endif
599 "ip4.addr: bad netmask \"%s\"",
600 cs);
601 error = -1;
602 }
603 *cs = '\0';
604 s->len = cs - s->s + 1;
605 }
606 }
607 }
608#ifndef INET6
609 while (0);
610#endif
611 return error;
612}
613
614/*
615 * Import parameters into libjail's binary jailparam format.
616 */
617int
618import_params(struct cfjail *j)
619{
620 struct cfparam *p;
621 struct cfstring *s, *ts;
622 struct jailparam *jp;
623 char *value, *cs;
624 size_t vallen;
625 int error;
626
627 error = 0;
628 j->njp = 0;
629 TAILQ_FOREACH(p, &j->params, tq)
630 if (!(p->flags & PF_INTERNAL))
631 j->njp++;
632 j->jp = jp = emalloc(j->njp * sizeof(struct jailparam));
633 TAILQ_FOREACH(p, &j->params, tq) {
634 if (p->flags & PF_INTERNAL)
635 continue;
636 if (jailparam_init(jp, p->name) < 0) {
637 error = -1;
638 jail_warnx(j, "%s", jail_errmsg);
639 continue;
640 }
641 if (STAILQ_EMPTY(&p->val))
642 value = NULL;
643 else if (!jp->jp_elemlen ||
644 !STAILQ_NEXT(STAILQ_FIRST(&p->val), tq)) {
645 /*
646 * Scalar parameters silently discard multiple (array)
647 * values, keeping only the last value added. This
648 * lets values added from the command line append to
649 * arrays wthout pre-checking the type.
650 */
651 value = STAILQ_LAST(&p->val, cfstring, tq)->s;
652 } else {
653 /*
654 * Convert arrays into comma-separated strings, which
655 * jailparam_import will then convert back into arrays.
656 */
657 vallen = 0;
658 STAILQ_FOREACH(s, &p->val, tq)
659 vallen += s->len + 1;
660 value = alloca(vallen);
661 cs = value;
662 STAILQ_FOREACH_SAFE(s, &p->val, tq, ts) {
663 strcpy(cs, s->s);
664 if (ts != NULL) {
665 cs += s->len + 1;
666 cs[-1] = ',';
667 }
668 }
669 }
670 if (jailparam_import(jp, value) < 0) {
671 error = -1;
672 jail_warnx(j, "%s", jail_errmsg);
673 }
674 jp++;
675 }
676 if (error) {
677 jailparam_free(j->jp, j->njp);
678 free(j->jp);
679 j->jp = NULL;
680 failed(j);
681 }
682 return error;
683}
684
685/*
686 * Check if options are equal (with or without the "no" prefix).
687 */
688int
689equalopts(const char *opt1, const char *opt2)
690{
691 char *p;
692
693 /* "opt" vs. "opt" or "noopt" vs. "noopt" */
694 if (strcmp(opt1, opt2) == 0)
695 return (1);
696 /* "noopt" vs. "opt" */
697 if (strncmp(opt1, "no", 2) == 0 && strcmp(opt1 + 2, opt2) == 0)
698 return (1);
699 /* "opt" vs. "noopt" */
700 if (strncmp(opt2, "no", 2) == 0 && strcmp(opt1, opt2 + 2) == 0)
701 return (1);
702 while ((p = strchr(opt1, '.')) != NULL &&
703 !strncmp(opt1, opt2, ++p - opt1)) {
704 opt2 += p - opt1;
705 opt1 = p;
706 /* "foo.noopt" vs. "foo.opt" */
707 if (strncmp(opt1, "no", 2) == 0 && strcmp(opt1 + 2, opt2) == 0)
708 return (1);
709 /* "foo.opt" vs. "foo.noopt" */
710 if (strncmp(opt2, "no", 2) == 0 && strcmp(opt1, opt2 + 2) == 0)
711 return (1);
712 }
713 return (0);
714}
715
716/*
717 * See if a jail name matches a wildcard.
718 */
719int
720wild_jail_match(const char *jname, const char *wname)
721{
722 const char *jc, *jd, *wc, *wd;
723
724 /*
725 * A non-final "*" component in the wild name matches a single jail
726 * component, and a final "*" matches one or more jail components.
727 */
728 for (jc = jname, wc = wname;
729 (jd = strchr(jc, '.')) && (wd = strchr(wc, '.'));
730 jc = jd + 1, wc = wd + 1)
731 if (strncmp(jc, wc, jd - jc + 1) && strncmp(wc, "*.", 2))
732 return 0;
733 return (!strcmp(jc, wc) || !strcmp(wc, "*"));
734}
735
736/*
737 * Return if a jail name is a wildcard.
738 */
739int
740wild_jail_name(const char *wname)
741{
742 const char *wc;
743
744 for (wc = strchr(wname, '*'); wc; wc = strchr(wc + 1, '*'))
745 if ((wc == wname || wc[-1] == '.') &&
746 (wc[1] == '\0' || wc[1] == '.'))
747 return 1;
748 return 0;
749}
750
751/*
752 * Free a parameter record and all its strings and variables.
753 */
754static void
755free_param(struct cfparams *pp, struct cfparam *p)
756{
757 free(p->name);
758 free_param_strings(p);
759 TAILQ_REMOVE(pp, p, tq);
760 free(p);
761}
762
763static void
764free_param_strings(struct cfparam *p)
765{
766 struct cfstring *s;
767 struct cfvar *v;
768
769 while ((s = STAILQ_FIRST(&p->val))) {
770 free(s->s);
771 while ((v = STAILQ_FIRST(&s->vars))) {
772 free(v->name);
773 STAILQ_REMOVE_HEAD(&s->vars, tq);
774 free(v);
775 }
776 STAILQ_REMOVE_HEAD(&p->val, tq);
777 free(s);
778 }
779}
| 551 /*
552 * IP addresses may include an interface to set that address on,
553 * and a netmask/suffix for that address.
554 */
555 defif = string_param(j->intparams[IP_INTERFACE]) != NULL;
556#ifdef INET6
557 for (isip6 = 0; isip6 <= 1; isip6++)
558#else
559#define isip6 0
560 do
561#endif
562 {
563 if (j->intparams[KP_IP4_ADDR + isip6] == NULL)
564 continue;
565 STAILQ_FOREACH(s, &j->intparams[KP_IP4_ADDR + isip6]->val, tq) {
566 cs = strchr(s->s, '|');
567 if (cs || defif)
568 add_param(j, NULL, IP__IP4_IFADDR + isip6,
569 s->s);
570 if (cs) {
571 strcpy(s->s, cs + 1);
572 s->len -= cs + 1 - s->s;
573 }
574 if ((cs = strchr(s->s, '/'))) {
575 prefix = strtol(cs + 1, &ep, 10);
576 if (
577#ifdef INET6
578 !isip6 &&
579#endif
580 *ep == '.'
581 ? inet_pton(AF_INET, cs + 1, &addr4) != 1
582 : *ep || prefix < 0 || prefix > (
583#ifdef INET6
584 isip6 ? 128 :
585#endif
586 32)) {
587 jail_warnx(j,
588#ifdef INET6
589 isip6
590 ? "ip6.addr: bad prefixlen \"%s\"" :
591#endif
592 "ip4.addr: bad netmask \"%s\"",
593 cs);
594 error = -1;
595 }
596 *cs = '\0';
597 s->len = cs - s->s + 1;
598 }
599 }
600 }
601#ifndef INET6
602 while (0);
603#endif
604 return error;
605}
606
607/*
608 * Import parameters into libjail's binary jailparam format.
609 */
610int
611import_params(struct cfjail *j)
612{
613 struct cfparam *p;
614 struct cfstring *s, *ts;
615 struct jailparam *jp;
616 char *value, *cs;
617 size_t vallen;
618 int error;
619
620 error = 0;
621 j->njp = 0;
622 TAILQ_FOREACH(p, &j->params, tq)
623 if (!(p->flags & PF_INTERNAL))
624 j->njp++;
625 j->jp = jp = emalloc(j->njp * sizeof(struct jailparam));
626 TAILQ_FOREACH(p, &j->params, tq) {
627 if (p->flags & PF_INTERNAL)
628 continue;
629 if (jailparam_init(jp, p->name) < 0) {
630 error = -1;
631 jail_warnx(j, "%s", jail_errmsg);
632 continue;
633 }
634 if (STAILQ_EMPTY(&p->val))
635 value = NULL;
636 else if (!jp->jp_elemlen ||
637 !STAILQ_NEXT(STAILQ_FIRST(&p->val), tq)) {
638 /*
639 * Scalar parameters silently discard multiple (array)
640 * values, keeping only the last value added. This
641 * lets values added from the command line append to
642 * arrays wthout pre-checking the type.
643 */
644 value = STAILQ_LAST(&p->val, cfstring, tq)->s;
645 } else {
646 /*
647 * Convert arrays into comma-separated strings, which
648 * jailparam_import will then convert back into arrays.
649 */
650 vallen = 0;
651 STAILQ_FOREACH(s, &p->val, tq)
652 vallen += s->len + 1;
653 value = alloca(vallen);
654 cs = value;
655 STAILQ_FOREACH_SAFE(s, &p->val, tq, ts) {
656 strcpy(cs, s->s);
657 if (ts != NULL) {
658 cs += s->len + 1;
659 cs[-1] = ',';
660 }
661 }
662 }
663 if (jailparam_import(jp, value) < 0) {
664 error = -1;
665 jail_warnx(j, "%s", jail_errmsg);
666 }
667 jp++;
668 }
669 if (error) {
670 jailparam_free(j->jp, j->njp);
671 free(j->jp);
672 j->jp = NULL;
673 failed(j);
674 }
675 return error;
676}
677
678/*
679 * Check if options are equal (with or without the "no" prefix).
680 */
681int
682equalopts(const char *opt1, const char *opt2)
683{
684 char *p;
685
686 /* "opt" vs. "opt" or "noopt" vs. "noopt" */
687 if (strcmp(opt1, opt2) == 0)
688 return (1);
689 /* "noopt" vs. "opt" */
690 if (strncmp(opt1, "no", 2) == 0 && strcmp(opt1 + 2, opt2) == 0)
691 return (1);
692 /* "opt" vs. "noopt" */
693 if (strncmp(opt2, "no", 2) == 0 && strcmp(opt1, opt2 + 2) == 0)
694 return (1);
695 while ((p = strchr(opt1, '.')) != NULL &&
696 !strncmp(opt1, opt2, ++p - opt1)) {
697 opt2 += p - opt1;
698 opt1 = p;
699 /* "foo.noopt" vs. "foo.opt" */
700 if (strncmp(opt1, "no", 2) == 0 && strcmp(opt1 + 2, opt2) == 0)
701 return (1);
702 /* "foo.opt" vs. "foo.noopt" */
703 if (strncmp(opt2, "no", 2) == 0 && strcmp(opt1, opt2 + 2) == 0)
704 return (1);
705 }
706 return (0);
707}
708
709/*
710 * See if a jail name matches a wildcard.
711 */
712int
713wild_jail_match(const char *jname, const char *wname)
714{
715 const char *jc, *jd, *wc, *wd;
716
717 /*
718 * A non-final "*" component in the wild name matches a single jail
719 * component, and a final "*" matches one or more jail components.
720 */
721 for (jc = jname, wc = wname;
722 (jd = strchr(jc, '.')) && (wd = strchr(wc, '.'));
723 jc = jd + 1, wc = wd + 1)
724 if (strncmp(jc, wc, jd - jc + 1) && strncmp(wc, "*.", 2))
725 return 0;
726 return (!strcmp(jc, wc) || !strcmp(wc, "*"));
727}
728
729/*
730 * Return if a jail name is a wildcard.
731 */
732int
733wild_jail_name(const char *wname)
734{
735 const char *wc;
736
737 for (wc = strchr(wname, '*'); wc; wc = strchr(wc + 1, '*'))
738 if ((wc == wname || wc[-1] == '.') &&
739 (wc[1] == '\0' || wc[1] == '.'))
740 return 1;
741 return 0;
742}
743
744/*
745 * Free a parameter record and all its strings and variables.
746 */
747static void
748free_param(struct cfparams *pp, struct cfparam *p)
749{
750 free(p->name);
751 free_param_strings(p);
752 TAILQ_REMOVE(pp, p, tq);
753 free(p);
754}
755
756static void
757free_param_strings(struct cfparam *p)
758{
759 struct cfstring *s;
760 struct cfvar *v;
761
762 while ((s = STAILQ_FIRST(&p->val))) {
763 free(s->s);
764 while ((v = STAILQ_FIRST(&s->vars))) {
765 free(v->name);
766 STAILQ_REMOVE_HEAD(&s->vars, tq);
767 free(v);
768 }
769 STAILQ_REMOVE_HEAD(&p->val, tq);
770 free(s);
771 }
772}
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