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;
63 static int add_param(const char *name, void *value, size_t valuelen,
64 struct jailparam *source, unsigned flags);
65 static int sort_param(const void *a, const void *b);
66 static char *noname(const char *name);
67 static char *nononame(const char *name);
68 static int print_jail(int pflags, int jflags);
69 static void quoted_print(char *str);
72 main(int argc, char **argv)
74 char *dot, *ep, *jname;
75 int c, i, jflags, jid, lastjid, pflags, spc;
78 pflags = jflags = jid = 0;
79 while ((c = getopt(argc, argv, "adj:hnqsv")) >= 0)
86 jid = strtoul(optarg, &ep, 10);
91 pflags = (pflags & ~(PRINT_SKIP | PRINT_VERBOSE)) |
95 pflags = (pflags & ~PRINT_VERBOSE) | PRINT_NAMEVAL;
98 pflags |= PRINT_QUOTED;
101 pflags = (pflags & ~(PRINT_HEADER | PRINT_VERBOSE)) |
102 PRINT_NAMEVAL | PRINT_QUOTED | PRINT_SKIP;
106 ~(PRINT_HEADER | PRINT_NAMEVAL | PRINT_SKIP)) |
110 errx(1, "usage: jls [-dhnqv] [-j jail] [param ...]");
113 /* Add the parameters to print. */
114 if (optind == argc) {
115 if (pflags & (PRINT_HEADER | PRINT_NAMEVAL))
116 add_param("all", NULL, (size_t)0, NULL, JP_USER);
117 else if (pflags & PRINT_VERBOSE) {
118 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
119 add_param("host.hostname", NULL, (size_t)0, NULL,
121 add_param("path", NULL, (size_t)0, NULL, JP_USER);
122 add_param("name", NULL, (size_t)0, NULL, JP_USER);
123 add_param("dying", NULL, (size_t)0, NULL, JP_USER);
124 add_param("cpuset.id", NULL, (size_t)0, NULL, JP_USER);
125 add_param("ip4.addr", NULL, (size_t)0, NULL, JP_USER);
126 add_param("ip6.addr", NULL, (size_t)0, NULL,
129 pflags |= PRINT_DEFAULT;
130 add_param("jid", NULL, (size_t)0, NULL, JP_USER);
131 add_param("ip4.addr", NULL, (size_t)0, NULL, JP_USER);
132 add_param("host.hostname", NULL, (size_t)0, NULL,
134 add_param("path", NULL, (size_t)0, NULL, JP_USER);
137 while (optind < argc)
138 add_param(argv[optind++], NULL, (size_t)0, NULL,
141 if (pflags & PRINT_SKIP) {
142 /* Check for parameters with jailsys parents. */
143 for (i = 0; i < nparams; i++) {
144 if ((params[i].jp_flags & JP_USER) &&
145 (dot = strchr(params[i].jp_name, '.'))) {
147 param_parent[i] = add_param(params[i].jp_name,
148 NULL, (size_t)0, NULL, JP_OPT);
154 /* Add the index key parameters. */
156 add_param("jid", &jid, sizeof(jid), NULL, 0);
157 else if (jname != NULL)
158 add_param("name", jname, strlen(jname), NULL, 0);
160 add_param("lastjid", &lastjid, sizeof(lastjid), NULL, 0);
162 /* Print a header line if requested. */
163 if (pflags & PRINT_VERBOSE)
164 printf(" JID Hostname Path\n"
167 " IP Address(es)\n");
168 else if (pflags & PRINT_DEFAULT)
169 printf(" JID IP Address "
171 else if (pflags & PRINT_HEADER) {
172 for (i = spc = 0; i < nparams; i++)
173 if (params[i].jp_flags & JP_USER) {
178 fputs(params[i].jp_name, stdout);
183 /* Fetch the jail(s) and print the paramters. */
184 if (jid != 0 || jname != NULL) {
185 if (print_jail(pflags, jflags) < 0)
186 errx(1, "%s", jail_errmsg);
189 (lastjid = print_jail(pflags, jflags)) >= 0; )
191 if (errno != 0 && errno != ENOENT)
192 errx(1, "%s", jail_errmsg);
199 add_param(const char *name, void *value, size_t valuelen,
200 struct jailparam *source, unsigned flags)
202 struct jailparam *param, *tparams;
205 static int paramlistsize;
207 /* The pseudo-parameter "all" scans the list of available parameters. */
208 if (!strcmp(name, "all")) {
209 tnparams = jailparam_all(&tparams);
211 errx(1, "%s", jail_errmsg);
212 qsort(tparams, (size_t)tnparams, sizeof(struct jailparam),
214 for (i = 0; i < tnparams; i++)
215 add_param(tparams[i].jp_name, NULL, (size_t)0,
221 /* Check for repeat parameters. */
222 for (i = 0; i < nparams; i++)
223 if (!strcmp(name, params[i].jp_name)) {
224 if (value != NULL && jailparam_import_raw(params + i,
225 value, valuelen) < 0)
226 errx(1, "%s", jail_errmsg);
227 params[i].jp_flags |= flags;
229 jailparam_free(source, 1);
233 /* Make sure there is room for the new param record. */
236 params = malloc(paramlistsize * sizeof(*params));
237 param_parent = malloc(paramlistsize * sizeof(*param_parent));
238 if (params == NULL || param_parent == NULL)
240 } else if (nparams >= paramlistsize) {
242 params = realloc(params, paramlistsize * sizeof(*params));
243 param_parent = realloc(param_parent,
244 paramlistsize * sizeof(*param_parent));
245 if (params == NULL || param_parent == NULL)
249 /* Look up the parameter. */
250 param_parent[nparams] = -1;
251 param = params + nparams++;
252 if (source != NULL) {
254 param->jp_flags |= flags;
255 return param - params;
257 if (jailparam_init(param, name) < 0)
258 errx(1, "%s", jail_errmsg);
259 param->jp_flags = flags;
260 if ((value != NULL ? jailparam_import_raw(param, value, valuelen)
261 : jailparam_import(param, value)) < 0) {
262 if (flags & JP_OPT) {
266 errx(1, "%s", jail_errmsg);
268 return param - params;
272 sort_param(const void *a, const void *b)
274 const struct jailparam *parama, *paramb;
277 /* Put top-level parameters first. */
280 ap = strchr(parama->jp_name, '.');
281 bp = strchr(paramb->jp_name, '.');
286 return (strcmp(parama->jp_name, paramb->jp_name));
290 noname(const char *name)
294 nname = malloc(strlen(name) + 3);
297 p = strrchr(name, '.');
299 sprintf(nname, "%.*s.no%s", (int)(p - name), name, p + 1);
301 sprintf(nname, "no%s", name);
306 nononame(const char *name)
310 p = strrchr(name, '.');
311 if (strncmp(p ? p + 1 : name, "no", 2))
313 nname = malloc(strlen(name) - 1);
317 sprintf(nname, "%.*s.%s", (int)(p - name), name, p + 3);
319 strcpy(nname, name + 2);
324 print_jail(int pflags, int jflags)
328 int i, ai, jid, count, spc;
329 char ipbuf[INET6_ADDRSTRLEN];
331 jid = jailparam_get(params, nparams, jflags);
334 if (pflags & PRINT_VERBOSE) {
335 printf("%6d %-29.29s %.74s\n"
336 "%6s %-29.29s %.74s\n"
338 *(int *)params[0].jp_value,
339 (char *)params[1].jp_value,
340 (char *)params[2].jp_value,
342 (char *)params[3].jp_value,
343 *(int *)params[4].jp_value ? "DYING" : "ACTIVE",
345 *(int *)params[5].jp_value);
346 count = params[6].jp_valuelen / sizeof(struct in_addr);
347 for (ai = 0; ai < count; ai++)
348 if (inet_ntop(AF_INET,
349 &((struct in_addr *)params[6].jp_value)[ai],
350 ipbuf, sizeof(ipbuf)) == NULL)
353 printf("%6s %-15.15s\n", "", ipbuf);
354 if (!strcmp(params[7].jp_name, "ip6.addr")) {
355 count = params[7].jp_valuelen / sizeof(struct in6_addr);
356 for (ai = 0; ai < count; ai++)
357 if (inet_ntop(AF_INET6,
358 &((struct in_addr *)params[7].jp_value)[ai],
359 ipbuf, sizeof(ipbuf)) == NULL)
362 printf("%6s %s\n", "", ipbuf);
364 } else if (pflags & PRINT_DEFAULT)
365 printf("%6d %-15.15s %-29.29s %.74s\n",
366 *(int *)params[0].jp_value,
367 params[1].jp_valuelen == 0 ? "-"
368 : inet_ntoa(*(struct in_addr *)params[1].jp_value),
369 (char *)params[2].jp_value,
370 (char *)params[3].jp_value);
372 param_values = alloca(nparams * sizeof(*param_values));
373 for (i = 0; i < nparams; i++) {
374 if (!(params[i].jp_flags & JP_USER))
376 param_values[i] = jailparam_export(params + i);
377 if (param_values[i] == NULL)
378 errx(1, "%s", jail_errmsg);
380 for (i = spc = 0; i < nparams; i++) {
381 if (!(params[i].jp_flags & JP_USER))
383 if ((pflags & PRINT_SKIP) &&
384 ((!(params[i].jp_ctltype &
385 (CTLFLAG_WR | CTLFLAG_TUN))) ||
386 (param_parent[i] >= 0 &&
387 *(int *)params[param_parent[i]].jp_value !=
394 if (pflags & PRINT_NAMEVAL) {
396 * Generally "name=value", but for booleans
397 * either "name" or "noname".
399 if (params[i].jp_flags &
400 (JP_BOOL | JP_NOBOOL)) {
401 if (*(int *)params[i].jp_value)
402 printf("%s", params[i].jp_name);
404 nname = (params[i].jp_flags &
406 nononame(params[i].jp_name)
407 : noname(params[i].jp_name);
413 printf("%s=", params[i].jp_name);
415 if (params[i].jp_valuelen == 0) {
416 if (pflags & PRINT_QUOTED)
418 else if (!(pflags & PRINT_NAMEVAL))
421 quoted_print(param_values[i]);
424 for (i = 0; i < nparams; i++)
425 if (params[i].jp_flags & JP_USER)
426 free(param_values[i]);
432 quoted_print(char *str)
437 /* An empty string needs quoting. */
439 fputs("\"\"", stdout);
444 * The value will be surrounded by quotes if it contains spaces
447 qc = strchr(p, '\'') ? '"'
448 : strchr(p, '"') ? '\''
449 : strchr(p, ' ') || strchr(p, '\t') ? '"'
454 if (c == '\\' || c == qc)