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>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
34 #include <sys/socket.h>
35 #include <sys/sysctl.h>
37 #include <arpa/inet.h>
38 #include <netinet/in.h>
49 #define JP_USER 0x01000000
50 #define JP_OPT 0x02000000
52 #define PRINT_DEFAULT 0x01
53 #define PRINT_HEADER 0x02
54 #define PRINT_NAMEVAL 0x04
55 #define PRINT_QUOTED 0x08
56 #define PRINT_SKIP 0x10
57 #define PRINT_VERBOSE 0x20
58 #define PRINT_JAIL_NAME 0x40
60 static struct jailparam *params;
61 static int *param_parent;
70 static int add_param(const char *name, void *value, size_t valuelen,
71 struct jailparam *source, unsigned flags);
72 static int sort_param(const void *a, const void *b);
73 static char *noname(const char *name);
74 static char *nononame(const char *name);
75 static int print_jail(int pflags, int jflags);
76 static void quoted_print(char *str);
79 main(int argc, char **argv)
81 char *dot, *ep, *jname, *pname;
82 int c, i, jflags, jid, lastjid, pflags, spc;
85 pflags = jflags = jid = 0;
86 while ((c = getopt(argc, argv, "adj:hNnqsv")) >= 0)
93 jid = strtoul(optarg, &ep, 10);
100 pflags = (pflags & ~(PRINT_SKIP | PRINT_VERBOSE)) |
104 pflags |= PRINT_JAIL_NAME;
107 pflags = (pflags & ~PRINT_VERBOSE) | PRINT_NAMEVAL;
110 pflags |= PRINT_QUOTED;
113 pflags = (pflags & ~(PRINT_HEADER | PRINT_VERBOSE)) |
114 PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP;
118 ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) |
122 errx(1, "usage: jls [-dhNnqv] [-j jail] [param ...]");
126 ip6_ok = feature_present("inet6");
129 ip4_ok = feature_present("inet");
132 /* Add the parameters to print. */
133 if (optind == argc) {
134 if (pflags & (PRINT_HEADER | PRINT_NAMEVAL))
135 add_param("all", NULL, (size_t)0, NULL, JP_USER);
136 else if (pflags & PRINT_VERBOSE) {
137 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
138 add_param("host.hostname", NULL, (size_t)0, NULL,
140 add_param("path", NULL, (size_t)0, NULL, JP_USER);
141 add_param("name", NULL, (size_t)0, NULL, JP_USER);
142 add_param("dying", NULL, (size_t)0, NULL, JP_USER);
143 add_param("cpuset.id", NULL, (size_t)0, NULL, JP_USER);
146 add_param("ip4.addr", NULL, (size_t)0, NULL,
151 add_param("ip6.addr", NULL, (size_t)0, NULL,
155 pflags |= PRINT_DEFAULT;
156 if (pflags & PRINT_JAIL_NAME)
157 add_param("name", NULL, (size_t)0, NULL, JP_USER);
159 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
162 add_param("ip4.addr", NULL, (size_t)0, NULL,
165 add_param("host.hostname", NULL, (size_t)0, NULL,
167 add_param("path", NULL, (size_t)0, NULL, JP_USER);
170 pflags &= ~PRINT_VERBOSE;
171 while (optind < argc)
172 add_param(argv[optind++], NULL, (size_t)0, NULL,
176 if (pflags & PRINT_SKIP) {
177 /* Check for parameters with jailsys parents. */
178 for (i = 0; i < nparams; i++) {
179 if ((params[i].jp_flags & JP_USER) &&
180 (dot = strchr(params[i].jp_name, '.'))) {
181 pname = alloca((dot - params[i].jp_name) + 1);
182 strlcpy(pname, params[i].jp_name,
183 (dot - params[i].jp_name) + 1);
184 param_parent[i] = add_param(pname,
185 NULL, (size_t)0, NULL, JP_OPT);
190 /* Add the index key parameters. */
192 add_param("jid", &jid, sizeof(jid), NULL, 0);
193 else if (jname != NULL)
194 add_param("name", jname, strlen(jname), NULL, 0);
196 add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
198 /* Print a header line if requested. */
199 if (pflags & PRINT_VERBOSE)
200 printf(" JID Hostname Path\n"
203 " IP Address(es)\n");
204 else if (pflags & PRINT_DEFAULT)
205 if (pflags & PRINT_JAIL_NAME)
206 printf(" JID IP Address "
209 printf(" JID IP Address "
211 else if (pflags & PRINT_HEADER) {
212 for (i = spc = 0; i < nparams; i++)
213 if (params[i].jp_flags & JP_USER) {
218 fputs(params[i].jp_name, stdout);
223 /* Fetch the jail(s) and print the parameters. */
224 if (jid != 0 || jname != NULL) {
225 if (print_jail(pflags, jflags) < 0)
226 errx(1, "%s", jail_errmsg);
229 (lastjid = print_jail(pflags, jflags)) >= 0; )
231 if (errno != 0 && errno != ENOENT)
232 errx(1, "%s", jail_errmsg);
239 add_param(const char *name, void *value, size_t valuelen,
240 struct jailparam *source, unsigned flags)
242 struct jailparam *param, *tparams;
245 static int paramlistsize;
247 /* The pseudo-parameter "all" scans the list of available parameters. */
248 if (!strcmp(name, "all")) {
249 tnparams = jailparam_all(&tparams);
251 errx(1, "%s", jail_errmsg);
252 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
254 for (i = 0; i < tnparams; i++)
255 add_param(tparams[i].jp_name, NULL, (size_t)0,
261 /* Check for repeat parameters. */
262 for (i = 0; i < nparams; i++)
263 if (!strcmp(name, params[i].jp_name)) {
264 if (value != NULL && jailparam_import_raw(params + i,
265 value, valuelen) < 0)
266 errx(1, "%s", jail_errmsg);
267 params[i].jp_flags |= flags;
269 jailparam_free(source, 1);
273 /* Make sure there is room for the new param record. */
276 params = malloc(paramlistsize * sizeof(*params));
277 param_parent = malloc(paramlistsize * sizeof(*param_parent));
278 if (params == NULL || param_parent == NULL)
280 } else if (nparams >= paramlistsize) {
282 params = realloc(params, paramlistsize * sizeof(*params));
283 param_parent = realloc(param_parent,
284 paramlistsize * sizeof(*param_parent));
285 if (params == NULL || param_parent == NULL)
289 /* Look up the parameter. */
290 param_parent[nparams] = -1;
291 param = params + nparams++;
292 if (source != NULL) {
294 param->jp_flags |= flags;
295 return param - params;
297 if (jailparam_init(param, name) < 0 ||
298 (value != NULL ? jailparam_import_raw(param, value, valuelen)
299 : jailparam_import(param, value)) < 0) {
300 if (flags & JP_OPT) {
304 errx(1, "%s", jail_errmsg);
306 param->jp_flags = flags;
307 return param - params;
311 sort_param(const void *a, const void *b)
313 const struct jailparam *parama, *paramb;
316 /* Put top-level parameters first. */
319 ap = strchr(parama->jp_name, '.');
320 bp = strchr(paramb->jp_name, '.');
325 return (strcmp(parama->jp_name, paramb->jp_name));
329 noname(const char *name)
333 nname = malloc(strlen(name) + 3);
336 p = strrchr(name, '.');
338 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
340 sprintf(nname, "no%s", name);
345 nononame(const char *name)
349 p = strrchr(name, '.');
350 if (strncmp(p ? p + 1 : name, "no", 2))
352 nname = malloc(strlen(name) - 1);
356 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
358 strcpy(nname, name + 2);
363 print_jail(int pflags, int jflags)
367 int i, ai, jid, count, n, spc;
368 char ipbuf[INET6_ADDRSTRLEN];
370 jid = jailparam_get(params, nparams, jflags);
373 if (pflags & PRINT_VERBOSE) {
374 printf("%6d %-29.29s %.74s\n"
375 "%6s %-29.29s %.74s\n"
377 *(int *)params[0].jp_value,
378 (char *)params[1].jp_value,
379 (char *)params[2].jp_value,
381 (char *)params[3].jp_value,
382 *(int *)params[4].jp_value ? "DYING" : "ACTIVE",
384 *(int *)params[5].jp_value);
387 if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) {
388 count = params[n].jp_valuelen / sizeof(struct in_addr);
389 for (ai = 0; ai < count; ai++)
390 if (inet_ntop(AF_INET,
391 &((struct in_addr *)params[n].jp_value)[ai],
392 ipbuf, sizeof(ipbuf)) == NULL)
395 printf("%6s %-15.15s\n", "", ipbuf);
400 if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) {
401 count = params[n].jp_valuelen / sizeof(struct in6_addr);
402 for (ai = 0; ai < count; ai++)
403 if (inet_ntop(AF_INET6,
404 &((struct in6_addr *)
405 params[n].jp_value)[ai],
406 ipbuf, sizeof(ipbuf)) == NULL)
409 printf("%6s %s\n", "", ipbuf);
413 } else if (pflags & PRINT_DEFAULT) {
414 if (pflags & PRINT_JAIL_NAME)
415 printf(" %-15s ", (char *)params[0].jp_value);
417 printf("%6d ", *(int *)params[0].jp_value);
418 printf("%-15.15s %-29.29s %.74s\n",
420 (!ip4_ok || params[1].jp_valuelen == 0) ? "-"
421 : inet_ntoa(*(struct in_addr *)params[1].jp_value),
422 (char *)params[2-!ip4_ok].jp_value,
423 (char *)params[3-!ip4_ok].jp_value);
426 (char *)params[1].jp_value,
427 (char *)params[2].jp_value);
430 param_values = alloca(nparams * sizeof(*param_values));
431 for (i = 0; i < nparams; i++) {
432 if (!(params[i].jp_flags & JP_USER))
434 param_values[i] = jailparam_export(params + i);
435 if (param_values[i] == NULL)
436 errx(1, "%s", jail_errmsg);
438 for (i = spc = 0; i < nparams; i++) {
439 if (!(params[i].jp_flags & JP_USER))
441 if ((pflags & PRINT_SKIP) &&
442 ((!(params[i].jp_ctltype &
443 (CTLFLAG_WR | CTLFLAG_TUN))) ||
444 (param_parent[i] >= 0 &&
445 *(int *)params[param_parent[i]].jp_value !=
452 if (pflags & PRINT_NAMEVAL) {
454 * Generally "name=value", but for booleans
455 * either "name" or "noname".
457 if (params[i].jp_flags &
458 (JP_BOOL | JP_NOBOOL)) {
459 if (*(int *)params[i].jp_value)
460 printf("%s", params[i].jp_name);
462 nname = (params[i].jp_flags &
464 nononame(params[i].jp_name)
465 : noname(params[i].jp_name);
471 printf("%s=", params[i].jp_name);
473 if (params[i].jp_valuelen == 0) {
474 if (pflags & PRINT_QUOTED)
476 else if (!(pflags & PRINT_NAMEVAL))
479 quoted_print(param_values[i]);
482 for (i = 0; i < nparams; i++)
483 if (params[i].jp_flags & JP_USER)
484 free(param_values[i]);
490 quoted_print(char *str)
495 /* An empty string needs quoting. */
497 fputs("\"\"", stdout);
502 * The value will be surrounded by quotes if it contains spaces
505 qc = strchr(p, '\'') ? '"'
506 : strchr(p, '"') ? '\''
507 : strchr(p, ' ') || strchr(p, '\t') ? '"'
512 if (c == '\\' || c == qc)