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;
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 while (optind < argc)
171 add_param(argv[optind++], NULL, (size_t)0, NULL,
174 if (pflags & PRINT_SKIP) {
175 /* Check for parameters with jailsys parents. */
176 for (i = 0; i < nparams; i++) {
177 if ((params[i].jp_flags & JP_USER) &&
178 (dot = strchr(params[i].jp_name, '.'))) {
180 param_parent[i] = add_param(params[i].jp_name,
181 NULL, (size_t)0, NULL, JP_OPT);
187 /* Add the index key parameters. */
189 add_param("jid", &jid, sizeof(jid), NULL, 0);
190 else if (jname != NULL)
191 add_param("name", jname, strlen(jname), NULL, 0);
193 add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
195 /* Print a header line if requested. */
196 if (pflags & PRINT_VERBOSE)
197 printf(" JID Hostname Path\n"
200 " IP Address(es)\n");
201 else if (pflags & PRINT_DEFAULT)
202 if (pflags & PRINT_JAIL_NAME)
203 printf(" JID IP Address "
206 printf(" JID IP Address "
208 else if (pflags & PRINT_HEADER) {
209 for (i = spc = 0; i < nparams; i++)
210 if (params[i].jp_flags & JP_USER) {
215 fputs(params[i].jp_name, stdout);
220 /* Fetch the jail(s) and print the paramters. */
221 if (jid != 0 || jname != NULL) {
222 if (print_jail(pflags, jflags) < 0)
223 errx(1, "%s", jail_errmsg);
226 (lastjid = print_jail(pflags, jflags)) >= 0; )
228 if (errno != 0 && errno != ENOENT)
229 errx(1, "%s", jail_errmsg);
236 add_param(const char *name, void *value, size_t valuelen,
237 struct jailparam *source, unsigned flags)
239 struct jailparam *param, *tparams;
242 static int paramlistsize;
244 /* The pseudo-parameter "all" scans the list of available parameters. */
245 if (!strcmp(name, "all")) {
246 tnparams = jailparam_all(&tparams);
248 errx(1, "%s", jail_errmsg);
249 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
251 for (i = 0; i < tnparams; i++)
252 add_param(tparams[i].jp_name, NULL, (size_t)0,
258 /* Check for repeat parameters. */
259 for (i = 0; i < nparams; i++)
260 if (!strcmp(name, params[i].jp_name)) {
261 if (value != NULL && jailparam_import_raw(params + i,
262 value, valuelen) < 0)
263 errx(1, "%s", jail_errmsg);
264 params[i].jp_flags |= flags;
266 jailparam_free(source, 1);
270 /* Make sure there is room for the new param record. */
273 params = malloc(paramlistsize * sizeof(*params));
274 param_parent = malloc(paramlistsize * sizeof(*param_parent));
275 if (params == NULL || param_parent == NULL)
277 } else if (nparams >= paramlistsize) {
279 params = realloc(params, paramlistsize * sizeof(*params));
280 param_parent = realloc(param_parent,
281 paramlistsize * sizeof(*param_parent));
282 if (params == NULL || param_parent == NULL)
286 /* Look up the parameter. */
287 param_parent[nparams] = -1;
288 param = params + nparams++;
289 if (source != NULL) {
291 param->jp_flags |= flags;
292 return param - params;
294 if (jailparam_init(param, name) < 0)
295 errx(1, "%s", jail_errmsg);
296 param->jp_flags = flags;
297 if ((value != NULL ? jailparam_import_raw(param, value, valuelen)
298 : jailparam_import(param, value)) < 0) {
299 if (flags & JP_OPT) {
303 errx(1, "%s", jail_errmsg);
305 return param - params;
309 sort_param(const void *a, const void *b)
311 const struct jailparam *parama, *paramb;
314 /* Put top-level parameters first. */
317 ap = strchr(parama->jp_name, '.');
318 bp = strchr(paramb->jp_name, '.');
323 return (strcmp(parama->jp_name, paramb->jp_name));
327 noname(const char *name)
331 nname = malloc(strlen(name) + 3);
334 p = strrchr(name, '.');
336 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
338 sprintf(nname, "no%s", name);
343 nononame(const char *name)
347 p = strrchr(name, '.');
348 if (strncmp(p ? p + 1 : name, "no", 2))
350 nname = malloc(strlen(name) - 1);
354 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
356 strcpy(nname, name + 2);
361 print_jail(int pflags, int jflags)
365 int i, ai, jid, count, n, spc;
366 char ipbuf[INET6_ADDRSTRLEN];
368 jid = jailparam_get(params, nparams, jflags);
371 if (pflags & PRINT_VERBOSE) {
372 printf("%6d %-29.29s %.74s\n"
373 "%6s %-29.29s %.74s\n"
375 *(int *)params[0].jp_value,
376 (char *)params[1].jp_value,
377 (char *)params[2].jp_value,
379 (char *)params[3].jp_value,
380 *(int *)params[4].jp_value ? "DYING" : "ACTIVE",
382 *(int *)params[5].jp_value);
385 if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) {
386 count = params[n].jp_valuelen / sizeof(struct in_addr);
387 for (ai = 0; ai < count; ai++)
388 if (inet_ntop(AF_INET,
389 &((struct in_addr *)params[n].jp_value)[ai],
390 ipbuf, sizeof(ipbuf)) == NULL)
393 printf("%6s %-15.15s\n", "", ipbuf);
398 if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) {
399 count = params[n].jp_valuelen / sizeof(struct in6_addr);
400 for (ai = 0; ai < count; ai++)
401 if (inet_ntop(AF_INET6,
402 &((struct in6_addr *)
403 params[n].jp_value)[ai],
404 ipbuf, sizeof(ipbuf)) == NULL)
407 printf("%6s %s\n", "", ipbuf);
411 } else if (pflags & PRINT_DEFAULT) {
412 if (pflags & PRINT_JAIL_NAME)
413 printf(" %-15s ", (char *)params[0].jp_value);
415 printf("%6d ", *(int *)params[0].jp_value);
416 printf("%-15.15s %-29.29s %.74s\n",
418 (!ip4_ok || params[1].jp_valuelen == 0) ? "-"
419 : inet_ntoa(*(struct in_addr *)params[1].jp_value),
420 (char *)params[2-!ip4_ok].jp_value,
421 (char *)params[3-!ip4_ok].jp_value);
424 (char *)params[1].jp_value,
425 (char *)params[2].jp_value);
428 param_values = alloca(nparams * sizeof(*param_values));
429 for (i = 0; i < nparams; i++) {
430 if (!(params[i].jp_flags & JP_USER))
432 param_values[i] = jailparam_export(params + i);
433 if (param_values[i] == NULL)
434 errx(1, "%s", jail_errmsg);
436 for (i = spc = 0; i < nparams; i++) {
437 if (!(params[i].jp_flags & JP_USER))
439 if ((pflags & PRINT_SKIP) &&
440 ((!(params[i].jp_ctltype &
441 (CTLFLAG_WR | CTLFLAG_TUN))) ||
442 (param_parent[i] >= 0 &&
443 *(int *)params[param_parent[i]].jp_value !=
450 if (pflags & PRINT_NAMEVAL) {
452 * Generally "name=value", but for booleans
453 * either "name" or "noname".
455 if (params[i].jp_flags &
456 (JP_BOOL | JP_NOBOOL)) {
457 if (*(int *)params[i].jp_value)
458 printf("%s", params[i].jp_name);
460 nname = (params[i].jp_flags &
462 nononame(params[i].jp_name)
463 : noname(params[i].jp_name);
469 printf("%s=", params[i].jp_name);
471 if (params[i].jp_valuelen == 0) {
472 if (pflags & PRINT_QUOTED)
474 else if (!(pflags & PRINT_NAMEVAL))
477 quoted_print(param_values[i]);
480 for (i = 0; i < nparams; i++)
481 if (params[i].jp_flags & JP_USER)
482 free(param_values[i]);
488 quoted_print(char *str)
493 /* An empty string needs quoting. */
495 fputs("\"\"", stdout);
500 * The value will be surrounded by quotes if it contains spaces
503 qc = strchr(p, '\'') ? '"'
504 : strchr(p, '"') ? '\''
505 : strchr(p, ' ') || strchr(p, '\t') ? '"'
510 if (c == '\\' || c == qc)