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 "2"
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 int special_print(int pflags, struct jailparam *param);
81 static void quoted_print(int pflags, char *name, char *value);
82 static void emit_ip_addr_list(int af_family, const char *list_name,
83 struct jailparam *param);
86 main(int argc, char **argv)
88 char *dot, *ep, *jname, *pname;
89 int c, i, jflags, jid, lastjid, pflags, spc;
91 argc = xo_parse_args(argc, argv);
95 xo_set_version(JLS_XO_VERSION);
97 pflags = jflags = jid = 0;
98 while ((c = getopt(argc, argv, "adj:hNnqsv")) >= 0)
102 jflags |= JAIL_DYING;
105 jid = strtoul(optarg, &ep, 10);
112 pflags = (pflags & ~(PRINT_SKIP | PRINT_VERBOSE)) |
116 pflags |= PRINT_JAIL_NAME;
119 pflags = (pflags & ~PRINT_VERBOSE) | PRINT_NAMEVAL;
122 pflags |= PRINT_QUOTED;
125 pflags = (pflags & ~(PRINT_HEADER | PRINT_VERBOSE)) |
126 PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP;
130 ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) |
134 xo_errx(1, "usage: jls [-dhNnqv] [-j jail] [param ...]");
138 ip6_ok = feature_present("inet6");
141 ip4_ok = feature_present("inet");
144 /* Add the parameters to print. */
145 if (optind == argc) {
146 if (pflags & (PRINT_HEADER | PRINT_NAMEVAL))
147 add_param("all", NULL, (size_t)0, NULL, JP_USER);
148 else if (pflags & PRINT_VERBOSE) {
149 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
150 add_param("host.hostname", NULL, (size_t)0, NULL,
152 add_param("path", NULL, (size_t)0, NULL, JP_USER);
153 add_param("name", NULL, (size_t)0, NULL, JP_USER);
154 add_param("dying", NULL, (size_t)0, NULL, JP_USER);
155 add_param("cpuset.id", NULL, (size_t)0, NULL, JP_USER);
158 add_param("ip4.addr", NULL, (size_t)0, NULL,
163 add_param("ip6.addr", NULL, (size_t)0, NULL,
167 pflags |= PRINT_DEFAULT;
168 if (pflags & PRINT_JAIL_NAME)
169 add_param("name", NULL, (size_t)0, NULL, JP_USER);
171 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
174 add_param("ip4.addr", NULL, (size_t)0, NULL,
177 add_param("host.hostname", NULL, (size_t)0, NULL,
179 add_param("path", NULL, (size_t)0, NULL, JP_USER);
182 pflags &= ~PRINT_VERBOSE;
183 while (optind < argc)
184 add_param(argv[optind++], NULL, (size_t)0, NULL,
188 if (pflags & PRINT_SKIP) {
189 /* Check for parameters with jailsys parents. */
190 for (i = 0; i < nparams; i++) {
191 if ((params[i].jp_flags & JP_USER) &&
192 (dot = strchr(params[i].jp_name, '.'))) {
193 pname = alloca((dot - params[i].jp_name) + 1);
194 strlcpy(pname, params[i].jp_name,
195 (dot - params[i].jp_name) + 1);
196 param_parent[i] = add_param(pname,
197 NULL, (size_t)0, NULL, JP_OPT);
202 /* Add the index key parameters. */
204 add_param("jid", &jid, sizeof(jid), NULL, 0);
205 else if (jname != NULL)
206 add_param("name", jname, strlen(jname), NULL, 0);
208 add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
210 /* Print a header line if requested. */
211 if (pflags & PRINT_VERBOSE) {
212 xo_emit("{T:/%3s}{T:JID}{P: }{T:Hostname}{Pd:/%22s}{T:Path}\n",
214 xo_emit("{P:/%8s}{T:Name}{Pd:/%26s}{T:State}\n", "", "");
215 xo_emit("{P:/%8s}{T:CPUSetID}\n", "");
216 xo_emit("{P:/%8s}{T:IP Address(es)}\n", "");
218 else if (pflags & PRINT_DEFAULT)
219 if (pflags & PRINT_JAIL_NAME)
220 xo_emit("{P: }{T:JID/%-15s}{P: }{T:IP Address/%-15s}"
221 "{P: }{T:Hostname/%-29s}{P: }{T:Path}\n");
223 xo_emit("{T:JID/%6s}{P: }{T:IP Address}{P:/%6s}"
224 "{T:Hostname}{P:/%22s}{T:Path}\n", "", "");
225 else if (pflags & PRINT_HEADER) {
226 for (i = spc = 0; i < nparams; i++)
227 if (params[i].jp_flags & JP_USER) {
232 xo_emit(params[i].jp_name);
237 xo_open_container("jail-information");
238 xo_open_list("jail");
239 /* Fetch the jail(s) and print the parameters. */
240 if (jid != 0 || jname != NULL) {
241 if (print_jail(pflags, jflags) < 0)
242 xo_errx(1, "%s", jail_errmsg);
245 (lastjid = print_jail(pflags, jflags)) >= 0; )
247 if (errno != 0 && errno != ENOENT)
248 xo_errx(1, "%s", jail_errmsg);
250 xo_close_list("jail");
251 xo_close_container("jail-information");
257 add_param(const char *name, void *value, size_t valuelen,
258 struct jailparam *source, unsigned flags)
260 struct jailparam *param, *tparams;
263 static int paramlistsize;
265 /* The pseudo-parameter "all" scans the list of available parameters. */
266 if (!strcmp(name, "all")) {
267 tnparams = jailparam_all(&tparams);
269 xo_errx(1, "%s", jail_errmsg);
270 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
272 for (i = 0; i < tnparams; i++)
273 add_param(tparams[i].jp_name, NULL, (size_t)0,
279 /* Check for repeat parameters. */
280 for (i = 0; i < nparams; i++)
281 if (!strcmp(name, params[i].jp_name)) {
282 if (value != NULL && jailparam_import_raw(params + i,
283 value, valuelen) < 0)
284 xo_errx(1, "%s", jail_errmsg);
285 params[i].jp_flags |= flags;
287 jailparam_free(source, 1);
291 /* Make sure there is room for the new param record. */
294 params = malloc(paramlistsize * sizeof(*params));
295 param_parent = malloc(paramlistsize * sizeof(*param_parent));
296 if (params == NULL || param_parent == NULL)
298 } else if (nparams >= paramlistsize) {
300 params = realloc(params, paramlistsize * sizeof(*params));
301 param_parent = realloc(param_parent,
302 paramlistsize * sizeof(*param_parent));
303 if (params == NULL || param_parent == NULL)
304 xo_err(1, "realloc");
307 /* Look up the parameter. */
308 param_parent[nparams] = -1;
309 param = params + nparams++;
310 if (source != NULL) {
312 param->jp_flags |= flags;
313 return param - params;
315 if (jailparam_init(param, name) < 0 ||
316 (value != NULL ? jailparam_import_raw(param, value, valuelen)
317 : jailparam_import(param, value)) < 0) {
318 if (flags & JP_OPT) {
322 xo_errx(1, "%s", jail_errmsg);
324 param->jp_flags = flags;
325 return param - params;
329 sort_param(const void *a, const void *b)
331 const struct jailparam *parama, *paramb;
334 /* Put top-level parameters first. */
337 ap = strchr(parama->jp_name, '.');
338 bp = strchr(paramb->jp_name, '.');
343 return (strcmp(parama->jp_name, paramb->jp_name));
347 noname(const char *name)
351 nname = malloc(strlen(name) + 3);
354 p = strrchr(name, '.');
356 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
358 sprintf(nname, "no%s", name);
363 nononame(const char *name)
367 p = strrchr(name, '.');
368 if (strncmp(p ? p + 1 : name, "no", 2))
370 nname = malloc(strlen(name) - 1);
374 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
376 strcpy(nname, name + 2);
381 print_jail(int pflags, int jflags)
383 char *nname, *xo_nname;
387 jid = jailparam_get(params, nparams, jflags);
391 xo_open_instance("jail");
393 if (pflags & PRINT_VERBOSE) {
394 xo_emit("{:jid/%6d}{P: }{:hostname/%-29.29s/%s}{P: }"
395 "{:path/%.74s/%s}\n",
396 *(int *)params[0].jp_value,
397 (char *)params[1].jp_value,
398 (char *)params[2].jp_value);
399 xo_emit("{P: }{:name/%-29.29s/%s}{P: }{:state/%.74s}\n",
400 (char *)params[3].jp_value,
401 *(int *)params[4].jp_value ? "DYING" : "ACTIVE");
402 xo_emit("{P: }{:cpusetid/%d}\n", *(int *)params[5].jp_value);
405 if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) {
406 emit_ip_addr_list(AF_INET, "ipv4_addrs", params + n);
411 if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) {
412 emit_ip_addr_list(AF_INET6, "ipv6_addrs", params + n);
416 } else if (pflags & PRINT_DEFAULT) {
417 if (pflags & PRINT_JAIL_NAME)
418 xo_emit("{P: }{:name/%-15s/%s}{P: }",
419 (char *)params[0].jp_value);
421 xo_emit("{:jid/%6d}{P: }", *(int *)params[0].jp_value);
422 xo_emit("{:ipv4/%-15.15s/%s}{P: }{:hostname/%-29.29s/%s}{P: }{:path/%.74s/%s}\n",
424 (!ip4_ok || params[1].jp_valuelen == 0) ? ""
425 : inet_ntoa(*(struct in_addr *)params[1].jp_value),
426 (char *)params[2-!ip4_ok].jp_value,
427 (char *)params[3-!ip4_ok].jp_value);
430 (char *)params[1].jp_value,
431 (char *)params[2].jp_value);
434 param_values = alloca(nparams * sizeof(*param_values));
435 for (i = 0; i < nparams; i++) {
436 if (!(params[i].jp_flags & JP_USER))
438 param_values[i] = jailparam_export(params + i);
439 if (param_values[i] == NULL)
440 xo_errx(1, "%s", jail_errmsg);
442 for (i = spc = 0; i < nparams; i++) {
443 if (!(params[i].jp_flags & JP_USER))
445 if ((pflags & PRINT_SKIP) &&
446 ((!(params[i].jp_ctltype &
447 (CTLFLAG_WR | CTLFLAG_TUN))) ||
448 (param_parent[i] >= 0 &&
449 *(int *)params[param_parent[i]].jp_value !=
456 if (pflags & PRINT_NAMEVAL) {
458 * Generally "name=value", but for booleans
459 * either "name" or "noname".
461 if (params[i].jp_flags &
462 (JP_BOOL | JP_NOBOOL)) {
463 if (*(int *)params[i].jp_value) {
464 asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name);
466 xo_emit("{d:/%s}", params[i].jp_name);
469 nname = (params[i].jp_flags &
471 nononame(params[i].jp_name)
472 : noname(params[i].jp_name);
473 if (params[i].jp_flags & JP_NOBOOL) {
474 asprintf(&xo_nname, "{en:%s/true}", params[i].jp_name);
477 asprintf(&xo_nname, "{en:%s/false}", params[i].jp_name);
480 xo_emit("{d:/%s}", nname);
486 xo_emit("{d:%s}=", params[i].jp_name);
488 if (!special_print(pflags, params + i))
489 quoted_print(pflags, params[i].jp_name, param_values[i]);
492 for (i = 0; i < nparams; i++)
493 if (params[i].jp_flags & JP_USER)
494 free(param_values[i]);
497 xo_close_instance("jail");
502 quoted_print(int pflags, char *name, char *value)
506 char *param_name_value;
508 /* An empty string needs quoting. */
510 asprintf(¶m_name_value, "{k:%s}{d:%s/\"\"}", name, name);
511 xo_emit(param_name_value);
512 free(param_name_value);
516 asprintf(¶m_name_value, "{:%s/%%s}", name);
518 * The value will be surrounded by quotes if it contains spaces
521 qc = strchr(p, '\'') ? '"'
522 : strchr(p, '"') ? '\''
523 : strchr(p, ' ') || strchr(p, '\t') ? '"'
526 if (qc && pflags & PRINT_QUOTED)
527 xo_emit("{P:/%c}", qc);
529 xo_emit(param_name_value, value);
531 free(param_name_value);
533 if (qc && pflags & PRINT_QUOTED)
534 xo_emit("{P:/%c}", qc);
538 special_print(int pflags, struct jailparam *param)
542 switch (xo_get_style(NULL)) {
551 if (!ip_as_list && param->jp_valuelen == 0) {
552 if (pflags & PRINT_QUOTED)
554 else if (!(pflags & PRINT_NAMEVAL))
556 } else if (ip_as_list && !strcmp(param->jp_name, "ip4.addr")) {
557 emit_ip_addr_list(AF_INET, param->jp_name, param);
558 } else if (ip_as_list && !strcmp(param->jp_name, "ip6.addr")) {
559 emit_ip_addr_list(AF_INET6, param->jp_name, param);
568 emit_ip_addr_list(int af_family, const char *list_name, struct jailparam *param)
570 char ipbuf[INET6_ADDRSTRLEN];
572 const char *emit_str;
577 addr_len = sizeof(struct in_addr);
578 emit_str = "{P: }{ql:ipv4_addr}{P:\n}";
581 addr_len = sizeof(struct in6_addr);
582 emit_str = "{P: }{ql:ipv6_addr}{P:\n}";
585 xo_err(1, "unsupported af_family");
589 count = param->jp_valuelen / addr_len;
591 xo_open_list(list_name);
592 for (ai = 0; ai < count; ai++) {
593 if (inet_ntop(af_family,
594 ((uint8_t *)param->jp_value) + addr_len * ai,
595 ipbuf, sizeof(ipbuf)) == NULL) {
596 xo_err(1, "inet_ntop");
598 xo_emit(emit_str, ipbuf);
601 xo_close_list(list_name);