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
59 static struct jailparam *params;
60 static int *param_parent;
69 static int add_param(const char *name, void *value, size_t valuelen,
70 struct jailparam *source, unsigned flags);
71 static int sort_param(const void *a, const void *b);
72 static char *noname(const char *name);
73 static char *nononame(const char *name);
74 static int print_jail(int pflags, int jflags);
75 static void quoted_print(char *str);
78 main(int argc, char **argv)
80 char *dot, *ep, *jname;
81 int c, i, jflags, jid, lastjid, pflags, spc;
84 pflags = jflags = jid = 0;
85 while ((c = getopt(argc, argv, "adj:hnqsv")) >= 0)
92 jid = strtoul(optarg, &ep, 10);
99 pflags = (pflags & ~(PRINT_SKIP | PRINT_VERBOSE)) |
103 pflags = (pflags & ~PRINT_VERBOSE) | PRINT_NAMEVAL;
106 pflags |= PRINT_QUOTED;
109 pflags = (pflags & ~(PRINT_HEADER | PRINT_VERBOSE)) |
110 PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP;
114 ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) |
118 errx(1, "usage: jls [-dhnqv] [-j jail] [param ...]");
122 ip6_ok = feature_present("inet6");
125 ip4_ok = feature_present("inet");
128 /* Add the parameters to print. */
129 if (optind == argc) {
130 if (pflags & (PRINT_HEADER | PRINT_NAMEVAL))
131 add_param("all", NULL, (size_t)0, NULL, JP_USER);
132 else if (pflags & PRINT_VERBOSE) {
133 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
134 add_param("host.hostname", NULL, (size_t)0, NULL,
136 add_param("path", NULL, (size_t)0, NULL, JP_USER);
137 add_param("name", NULL, (size_t)0, NULL, JP_USER);
138 add_param("dying", NULL, (size_t)0, NULL, JP_USER);
139 add_param("cpuset.id", NULL, (size_t)0, NULL, JP_USER);
142 add_param("ip4.addr", NULL, (size_t)0, NULL,
147 add_param("ip6.addr", NULL, (size_t)0, NULL,
151 pflags |= PRINT_DEFAULT;
152 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
155 add_param("ip4.addr", NULL, (size_t)0, NULL,
158 add_param("host.hostname", NULL, (size_t)0, NULL,
160 add_param("path", NULL, (size_t)0, NULL, JP_USER);
163 while (optind < argc)
164 add_param(argv[optind++], NULL, (size_t)0, NULL,
167 if (pflags & PRINT_SKIP) {
168 /* Check for parameters with jailsys parents. */
169 for (i = 0; i < nparams; i++) {
170 if ((params[i].jp_flags & JP_USER) &&
171 (dot = strchr(params[i].jp_name, '.'))) {
173 param_parent[i] = add_param(params[i].jp_name,
174 NULL, (size_t)0, NULL, JP_OPT);
180 /* Add the index key parameters. */
182 add_param("jid", &jid, sizeof(jid), NULL, 0);
183 else if (jname != NULL)
184 add_param("name", jname, strlen(jname), NULL, 0);
186 add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
188 /* Print a header line if requested. */
189 if (pflags & PRINT_VERBOSE)
190 printf(" JID Hostname Path\n"
193 " IP Address(es)\n");
194 else if (pflags & PRINT_DEFAULT)
195 printf(" JID IP Address "
197 else if (pflags & PRINT_HEADER) {
198 for (i = spc = 0; i < nparams; i++)
199 if (params[i].jp_flags & JP_USER) {
204 fputs(params[i].jp_name, stdout);
209 /* Fetch the jail(s) and print the paramters. */
210 if (jid != 0 || jname != NULL) {
211 if (print_jail(pflags, jflags) < 0)
212 errx(1, "%s", jail_errmsg);
215 (lastjid = print_jail(pflags, jflags)) >= 0; )
217 if (errno != 0 && errno != ENOENT)
218 errx(1, "%s", jail_errmsg);
225 add_param(const char *name, void *value, size_t valuelen,
226 struct jailparam *source, unsigned flags)
228 struct jailparam *param, *tparams;
231 static int paramlistsize;
233 /* The pseudo-parameter "all" scans the list of available parameters. */
234 if (!strcmp(name, "all")) {
235 tnparams = jailparam_all(&tparams);
237 errx(1, "%s", jail_errmsg);
238 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
240 for (i = 0; i < tnparams; i++)
241 add_param(tparams[i].jp_name, NULL, (size_t)0,
247 /* Check for repeat parameters. */
248 for (i = 0; i < nparams; i++)
249 if (!strcmp(name, params[i].jp_name)) {
250 if (value != NULL && jailparam_import_raw(params + i,
251 value, valuelen) < 0)
252 errx(1, "%s", jail_errmsg);
253 params[i].jp_flags |= flags;
255 jailparam_free(source, 1);
259 /* Make sure there is room for the new param record. */
262 params = malloc(paramlistsize * sizeof(*params));
263 param_parent = malloc(paramlistsize * sizeof(*param_parent));
264 if (params == NULL || param_parent == NULL)
266 } else if (nparams >= paramlistsize) {
268 params = realloc(params, paramlistsize * sizeof(*params));
269 param_parent = realloc(param_parent,
270 paramlistsize * sizeof(*param_parent));
271 if (params == NULL || param_parent == NULL)
275 /* Look up the parameter. */
276 param_parent[nparams] = -1;
277 param = params + nparams++;
278 if (source != NULL) {
280 param->jp_flags |= flags;
281 return param - params;
283 if (jailparam_init(param, name) < 0)
284 errx(1, "%s", jail_errmsg);
285 param->jp_flags = flags;
286 if ((value != NULL ? jailparam_import_raw(param, value, valuelen)
287 : jailparam_import(param, value)) < 0) {
288 if (flags & JP_OPT) {
292 errx(1, "%s", jail_errmsg);
294 return param - params;
298 sort_param(const void *a, const void *b)
300 const struct jailparam *parama, *paramb;
303 /* Put top-level parameters first. */
306 ap = strchr(parama->jp_name, '.');
307 bp = strchr(paramb->jp_name, '.');
312 return (strcmp(parama->jp_name, paramb->jp_name));
316 noname(const char *name)
320 nname = malloc(strlen(name) + 3);
323 p = strrchr(name, '.');
325 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
327 sprintf(nname, "no%s", name);
332 nononame(const char *name)
336 p = strrchr(name, '.');
337 if (strncmp(p ? p + 1 : name, "no", 2))
339 nname = malloc(strlen(name) - 1);
343 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
345 strcpy(nname, name + 2);
350 print_jail(int pflags, int jflags)
354 int i, ai, jid, count, n, spc;
355 char ipbuf[INET6_ADDRSTRLEN];
357 jid = jailparam_get(params, nparams, jflags);
360 if (pflags & PRINT_VERBOSE) {
361 printf("%6d %-29.29s %.74s\n"
362 "%6s %-29.29s %.74s\n"
364 *(int *)params[0].jp_value,
365 (char *)params[1].jp_value,
366 (char *)params[2].jp_value,
368 (char *)params[3].jp_value,
369 *(int *)params[4].jp_value ? "DYING" : "ACTIVE",
371 *(int *)params[5].jp_value);
374 if (ip4_ok && !strcmp(params[n].jp_name, "ip4.addr")) {
375 count = params[n].jp_valuelen / sizeof(struct in_addr);
376 for (ai = 0; ai < count; ai++)
377 if (inet_ntop(AF_INET,
378 &((struct in_addr *)params[n].jp_value)[ai],
379 ipbuf, sizeof(ipbuf)) == NULL)
382 printf("%6s %-15.15s\n", "", ipbuf);
387 if (ip6_ok && !strcmp(params[n].jp_name, "ip6.addr")) {
388 count = params[n].jp_valuelen / sizeof(struct in6_addr);
389 for (ai = 0; ai < count; ai++)
390 if (inet_ntop(AF_INET6,
391 &((struct in6_addr *)
392 params[n].jp_value)[ai],
393 ipbuf, sizeof(ipbuf)) == NULL)
396 printf("%6s %s\n", "", ipbuf);
400 } else if (pflags & PRINT_DEFAULT)
401 printf("%6d %-15.15s %-29.29s %.74s\n",
402 *(int *)params[0].jp_value,
404 (!ip4_ok || params[1].jp_valuelen == 0) ? "-"
405 : inet_ntoa(*(struct in_addr *)params[1].jp_value),
406 (char *)params[2-!ip4_ok].jp_value,
407 (char *)params[3-!ip4_ok].jp_value);
410 (char *)params[1].jp_value,
411 (char *)params[2].jp_value);
414 param_values = alloca(nparams * sizeof(*param_values));
415 for (i = 0; i < nparams; i++) {
416 if (!(params[i].jp_flags & JP_USER))
418 param_values[i] = jailparam_export(params + i);
419 if (param_values[i] == NULL)
420 errx(1, "%s", jail_errmsg);
422 for (i = spc = 0; i < nparams; i++) {
423 if (!(params[i].jp_flags & JP_USER))
425 if ((pflags & PRINT_SKIP) &&
426 ((!(params[i].jp_ctltype &
427 (CTLFLAG_WR | CTLFLAG_TUN))) ||
428 (param_parent[i] >= 0 &&
429 *(int *)params[param_parent[i]].jp_value !=
436 if (pflags & PRINT_NAMEVAL) {
438 * Generally "name=value", but for booleans
439 * either "name" or "noname".
441 if (params[i].jp_flags &
442 (JP_BOOL | JP_NOBOOL)) {
443 if (*(int *)params[i].jp_value)
444 printf("%s", params[i].jp_name);
446 nname = (params[i].jp_flags &
448 nononame(params[i].jp_name)
449 : noname(params[i].jp_name);
455 printf("%s=", params[i].jp_name);
457 if (params[i].jp_valuelen == 0) {
458 if (pflags & PRINT_QUOTED)
460 else if (!(pflags & PRINT_NAMEVAL))
463 quoted_print(param_values[i]);
466 for (i = 0; i < nparams; i++)
467 if (params[i].jp_flags & JP_USER)
468 free(param_values[i]);
474 quoted_print(char *str)
479 /* An empty string needs quoting. */
481 fputs("\"\"", stdout);
486 * The value will be surrounded by quotes if it contains spaces
489 qc = strchr(p, '\'') ? '"'
490 : strchr(p, '"') ? '\''
491 : strchr(p, ' ') || strchr(p, '\t') ? '"'
496 if (c == '\\' || c == qc)