2 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
3 * Copyright (c) 2008 Bjoern A. Zeeb <bz@FreeBSD.org>
4 * Copyright (c) 2009 James Gritton <jamie@FreeBSD.org>
5 * Copyright (c) 2015 Emmanuel Vadot <manu@bocal.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
33 #include <sys/param.h>
35 #include <sys/socket.h>
36 #include <sys/sysctl.h>
38 #include <arpa/inet.h>
39 #include <netinet/in.h>
51 #define JP_USER 0x01000000
52 #define JP_OPT 0x02000000
54 #define JLS_XO_VERSION "1"
56 #define PRINT_DEFAULT 0x01
57 #define PRINT_HEADER 0x02
58 #define PRINT_NAMEVAL 0x04
59 #define PRINT_QUOTED 0x08
60 #define PRINT_SKIP 0x10
61 #define PRINT_VERBOSE 0x20
62 #define PRINT_JAIL_NAME 0x40
64 static struct jailparam *params;
65 static int *param_parent;
74 static int add_param(const char *name, void *value, size_t valuelen,
75 struct jailparam *source, unsigned flags);
76 static int sort_param(const void *a, const void *b);
77 static char *noname(const char *name);
78 static char *nononame(const char *name);
79 static int print_jail(int pflags, int jflags);
80 static void quoted_print(int pflags, char *name, char *value);
83 main(int argc, char **argv)
85 char *dot, *ep, *jname, *pname;
86 int c, i, jflags, jid, lastjid, pflags, spc;
88 argc = xo_parse_args(argc, argv);
92 xo_set_version(JLS_XO_VERSION);
94 pflags = jflags = jid = 0;
95 while ((c = getopt(argc, argv, "adj:hNnqsv")) >= 0)
102 jid = strtoul(optarg, &ep, 10);
109 pflags = (pflags & ~(PRINT_SKIP | PRINT_VERBOSE)) |
113 pflags |= PRINT_JAIL_NAME;
116 pflags = (pflags & ~PRINT_VERBOSE) | PRINT_NAMEVAL;
119 pflags |= PRINT_QUOTED;
122 pflags = (pflags & ~(PRINT_HEADER | PRINT_VERBOSE)) |
123 PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP;
127 ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) |
131 xo_errx(1, "usage: jls [-dhNnqv] [-j jail] [param ...]");
135 ip6_ok = feature_present("inet6");
138 ip4_ok = feature_present("inet");
141 /* Add the parameters to print. */
142 if (optind == argc) {
143 if (pflags & (PRINT_HEADER | PRINT_NAMEVAL))
144 add_param("all", NULL, (size_t)0, NULL, JP_USER);
145 else if (pflags & PRINT_VERBOSE) {
146 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
147 add_param("host.hostname", NULL, (size_t)0, NULL,
149 add_param("path", NULL, (size_t)0, NULL, JP_USER);
150 add_param("name", NULL, (size_t)0, NULL, JP_USER);
151 add_param("dying", NULL, (size_t)0, NULL, JP_USER);
152 add_param("cpuset.id", NULL, (size_t)0, NULL, JP_USER);
155 add_param("ip4.addr", NULL, (size_t)0, NULL,
160 add_param("ip6.addr", NULL, (size_t)0, NULL,
164 pflags |= PRINT_DEFAULT;
165 if (pflags & PRINT_JAIL_NAME)
166 add_param("name", NULL, (size_t)0, NULL, JP_USER);
168 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
171 add_param("ip4.addr", NULL, (size_t)0, NULL,
174 add_param("host.hostname", NULL, (size_t)0, NULL,
176 add_param("path", NULL, (size_t)0, NULL, JP_USER);
179 pflags &= ~PRINT_VERBOSE;
180 while (optind < argc)
181 add_param(argv[optind++], NULL, (size_t)0, NULL,
185 if (pflags & PRINT_SKIP) {
186 /* Check for parameters with jailsys parents. */
187 for (i = 0; i < nparams; i++) {
188 if ((params[i].jp_flags & JP_USER) &&
189 (dot = strchr(params[i].jp_name, '.'))) {
190 pname = alloca((dot - params[i].jp_name) + 1);
191 strlcpy(pname, params[i].jp_name,
192 (dot - params[i].jp_name) + 1);
193 param_parent[i] = add_param(pname,
194 NULL, (size_t)0, NULL, JP_OPT);
199 /* Add the index key parameters. */
201 add_param("jid", &jid, sizeof(jid), NULL, 0);
202 else if (jname != NULL)
203 add_param("name", jname, strlen(jname), NULL, 0);
205 add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
207 /* Print a header line if requested. */
208 if (pflags & PRINT_VERBOSE) {
209 xo_emit("{T:/%3s}{T:JID}{P: }{T:Hostname}{Pd:/%22s}{T:Path}\n",
211 xo_emit("{P:/%8s}{T:Name}{Pd:/%26s}{T:State}\n", "", "");
212 xo_emit("{P:/%8s}{T:CPUSetID}\n", "");
213 xo_emit("{P:/%8s}{T:IP Address(es)}\n", "");
215 else if (pflags & PRINT_DEFAULT)
216 if (pflags & PRINT_JAIL_NAME)
217 xo_emit("{P: }{T:JID/%-15s}{P: }{T:IP Address/%-15s}"
218 "{P: }{T:Hostname/%-29s}{P: }{T:Path}\n");
220 xo_emit("{T:JID/%6s}{P: }{T:IP Address}{P:/%6s}"
221 "{T:Hostname}{P:/%22s}{T:Path}\n", "", "");
222 else if (pflags & PRINT_HEADER) {
223 for (i = spc = 0; i < nparams; i++)
224 if (params[i].jp_flags & JP_USER) {
229 xo_emit(params[i].jp_name);
234 xo_open_container("jail-information");
235 xo_open_list("jail");
236 /* Fetch the jail(s) and print the parameters. */
237 if (jid != 0 || jname != NULL) {
238 if (print_jail(pflags, jflags) < 0)
239 xo_errx(1, "%s", jail_errmsg);
242 (lastjid = print_jail(pflags, jflags)) >= 0; )
244 if (errno != 0 && errno != ENOENT)
245 xo_errx(1, "%s", jail_errmsg);
247 xo_close_list("jail");
248 xo_close_container("jail-information");
254 add_param(const char *name, void *value, size_t valuelen,
255 struct jailparam *source, unsigned flags)
257 struct jailparam *param, *tparams;
260 static int paramlistsize;
262 /* The pseudo-parameter "all" scans the list of available parameters. */
263 if (!strcmp(name, "all")) {
264 tnparams = jailparam_all(&tparams);
266 xo_errx(1, "%s", jail_errmsg);
267 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
269 for (i = 0; i < tnparams; i++)
270 add_param(tparams[i].jp_name, NULL, (size_t)0,
276 /* Check for repeat parameters. */
277 for (i = 0; i < nparams; i++)
278 if (!strcmp(name, params[i].jp_name)) {
279 if (value != NULL && jailparam_import_raw(params + i,
280 value, valuelen) < 0)
281 xo_errx(1, "%s", jail_errmsg);
282 params[i].jp_flags |= flags;
284 jailparam_free(source, 1);
288 /* Make sure there is room for the new param record. */
291 params = malloc(paramlistsize * sizeof(*params));
292 param_parent = malloc(paramlistsize * sizeof(*param_parent));
293 if (params == NULL || param_parent == NULL)
295 } else if (nparams >= paramlistsize) {
297 params = realloc(params, paramlistsize * sizeof(*params));
298 param_parent = realloc(param_parent,
299 paramlistsize * sizeof(*param_parent));
300 if (params == NULL || param_parent == NULL)
301 xo_err(1, "realloc");
304 /* Look up the parameter. */
305 param_parent[nparams] = -1;
306 param = params + nparams++;
307 if (source != NULL) {
309 param->jp_flags |= flags;
310 return param - params;
312 if (jailparam_init(param, name) < 0 ||
313 (value != NULL ? jailparam_import_raw(param, value, valuelen)
314 : jailparam_import(param, value)) < 0) {
315 if (flags & JP_OPT) {
319 xo_errx(1, "%s", jail_errmsg);
321 param->jp_flags = flags;
322 return param - params;
326 sort_param(const void *a, const void *b)
328 const struct jailparam *parama, *paramb;
331 /* Put top-level parameters first. */
334 ap = strchr(parama->jp_name, '.');
335 bp = strchr(paramb->jp_name, '.');
340 return (strcmp(parama->jp_name, paramb->jp_name));
344 noname(const char *name)
348 nname = malloc(strlen(name) + 3);
351 p = strrchr(name, '.');
353 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
355 sprintf(nname, "no%s", name);
360 nononame(const char *name)
364 p = strrchr(name, '.');
365 if (strncmp(p ? p + 1 : name, "no", 2))
367 nname = malloc(strlen(name) - 1);
371 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
373 strcpy(nname, name + 2);
378 print_jail(int pflags, int jflags)
380 char *nname, *xo_nname;
382 int i, ai, jid, count, n, spc;
383 char ipbuf[INET6_ADDRSTRLEN];
385 jid = jailparam_get(params, nparams, jflags);
389 xo_open_instance("jail");
391 if (pflags & PRINT_VERBOSE) {
392 xo_emit("{:jid/%6d}{P: }{:hostname/%-29.29s/%s}{P: }"
393 "{:path/%.74s/%s}\n",
394 *(int *)params[0].jp_value,
395 (char *)params[1].jp_value,
396 (char *)params[2].jp_value);
397 xo_emit("{P: }{:name/%-29.29s/%s}{P: }{:state/%.74s}\n",
398 (char *)params[3].jp_value,
399 *(int *)params[4].jp_value ? "DYING" : "ACTIVE");
400 xo_emit("{P: }{:cpusetid/%d}\n", *(int *)params[5].jp_value);
403 if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) {
404 count = params[n].jp_valuelen / sizeof(struct in_addr);
405 for (ai = 0; ai < count; ai++)
406 if (inet_ntop(AF_INET,
407 &((struct in_addr *)params[n].jp_value)[ai],
408 ipbuf, sizeof(ipbuf)) == NULL)
409 xo_err(1, "inet_ntop");
411 xo_emit("{P: }{l:ipv4_addrs}{P:\n}", ipbuf);
417 if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) {
418 count = params[n].jp_valuelen / sizeof(struct in6_addr);
419 for (ai = 0; ai < count; ai++)
420 if (inet_ntop(AF_INET6,
421 &((struct in6_addr *)
422 params[n].jp_value)[ai],
423 ipbuf, sizeof(ipbuf)) == NULL)
424 xo_err(1, "inet_ntop");
426 xo_emit("{P: }{l:ipv6_addrs}{P:\n}", ipbuf);
430 } else if (pflags & PRINT_DEFAULT) {
431 if (pflags & PRINT_JAIL_NAME)
432 xo_emit("{P: }{:name/%-15s/%s}{P: }",
433 (char *)params[0].jp_value);
435 xo_emit("{:jid/%6d}{P: }", *(int *)params[0].jp_value);
436 xo_emit("{:ipv4/%-15.15s/%s}{P: }{:hostname/%-29.29s/%s}{P: }{:path/%.74s/%s}\n",
438 (!ip4_ok || params[1].jp_valuelen == 0) ? ""
439 : inet_ntoa(*(struct in_addr *)params[1].jp_value),
440 (char *)params[2-!ip4_ok].jp_value,
441 (char *)params[3-!ip4_ok].jp_value);
444 (char *)params[1].jp_value,
445 (char *)params[2].jp_value);
448 param_values = alloca(nparams * sizeof(*param_values));
449 for (i = 0; i < nparams; i++) {
450 if (!(params[i].jp_flags & JP_USER))
452 param_values[i] = jailparam_export(params + i);
453 if (param_values[i] == NULL)
454 xo_errx(1, "%s", jail_errmsg);
456 for (i = spc = 0; i < nparams; i++) {
457 if (!(params[i].jp_flags & JP_USER))
459 if ((pflags & PRINT_SKIP) &&
460 ((!(params[i].jp_ctltype &
461 (CTLFLAG_WR | CTLFLAG_TUN))) ||
462 (param_parent[i] >= 0 &&
463 *(int *)params[param_parent[i]].jp_value !=
470 if (pflags & PRINT_NAMEVAL) {
472 * Generally "name=value", but for booleans
473 * either "name" or "noname".
475 if (params[i].jp_flags &
476 (JP_BOOL | JP_NOBOOL)) {
477 if (*(int *)params[i].jp_value) {
478 asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name);
480 xo_emit("{d:/%s}", params[i].jp_name);
483 nname = (params[i].jp_flags &
485 nononame(params[i].jp_name)
486 : noname(params[i].jp_name);
487 if (params[i].jp_flags & JP_NOBOOL) {
488 asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name);
491 asprintf(&xo_nname, "{en:%s/false}", params[i].jp_name);
494 xo_emit("{d:/%s}", nname);
500 xo_emit("{d:%s}=", params[i].jp_name);
502 if (params[i].jp_valuelen == 0) {
503 if (pflags & PRINT_QUOTED)
505 else if (!(pflags & PRINT_NAMEVAL))
508 quoted_print(pflags, params[i].jp_name, param_values[i]);
512 for (i = 0; i < nparams; i++)
513 if (params[i].jp_flags & JP_USER)
514 free(param_values[i]);
517 xo_close_instance("jail");
522 quoted_print(int pflags, char *name, char *value)
526 char *param_name_value;
528 /* An empty string needs quoting. */
530 asprintf(¶m_name_value, "{k:%s}{d:%s/\"\"}", name, name);
531 xo_emit(param_name_value);
532 free(param_name_value);
536 asprintf(¶m_name_value, "{:%s/%%s}", name);
538 * The value will be surrounded by quotes if it contains spaces
541 qc = strchr(p, '\'') ? '"'
542 : strchr(p, '"') ? '\''
543 : strchr(p, ' ') || strchr(p, '\t') ? '"'
546 if (qc && pflags & PRINT_QUOTED)
547 xo_emit("{P:/%c}", qc);
549 xo_emit(param_name_value, value);
551 free(param_name_value);
553 if (qc && pflags & PRINT_QUOTED)
554 xo_emit("{P:/%c}", qc);