2 * Copyright (c) 1996, 1998-2005, 2007-2008
3 * Todd C. Miller <Todd.Miller@courtesan.com>
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
17 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19 * Sponsored in part by the Defense Advanced Research Projects
20 * Agency (DARPA) and Air Force Research Laboratory, Air Force
21 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
28 #include <sys/param.h>
29 #include <sys/types.h>
31 #include <sys/socket.h>
40 #endif /* STDC_HEADERS */
44 # ifdef HAVE_STRINGS_H
47 #endif /* HAVE_STRING_H */
50 #endif /* HAVE_UNISTD_H */
53 #endif /* HAVE_FNMATCH */
54 #ifdef HAVE_NETGROUP_H
55 # include <netgroup.h>
56 #endif /* HAVE_NETGROUP_H */
60 #include <netinet/in.h>
61 #include <arpa/inet.h>
65 #include "interfaces.h"
70 # include "emul/fnmatch.h"
71 #endif /* HAVE_FNMATCH */
74 __unused static const char rcsid[] = "$Sudo: testsudoers.c,v 1.128 2008/11/19 17:01:20 millert Exp $";
82 char **Argv, **NewArgv;
84 struct interface *interfaces;
85 struct sudo_user sudo_user;
86 struct passwd *list_pw;
87 extern int parse_error;
89 /* passwd/group redirection for pwutil.c */
90 void (*my_setgrent) __P((void)) = setgrent;
91 void (*my_endgrent) __P((void)) = endgrent;
92 struct group *(*my_getgrnam) __P((const char *)) = getgrnam;
93 struct group *(*my_getgrgid) __P((gid_t)) = getgrgid;
94 void (*my_setpwent) __P((void)) = setpwent;
95 void (*my_endpwent) __P((void)) = endpwent;
96 struct passwd *(*my_getpwnam) __P((const char *)) = getpwnam;
97 struct passwd *(*my_getpwuid) __P((uid_t)) = getpwuid;
103 #if defined(SUDO_DEVEL) && defined(__OpenBSD__)
104 extern char *malloc_options;
110 int print_alias __P((void *, void *));
111 void dump_sudoers __P((void));
112 void print_defaults __P((void));
113 void print_privilege __P((struct privilege *));
114 void print_userspecs __P((void));
115 void usage __P((void)) __attribute__((__noreturn__));
116 void set_runasgr __P((char *));
117 void set_runaspw __P((char *));
119 extern void ts_setgrfile __P((const char *));
120 extern void ts_setgrent __P((void));
121 extern void ts_endgrent __P((void));
122 extern struct group *ts_getgrent __P((void));
123 extern struct group *ts_getgrnam __P((const char *));
124 extern struct group *ts_getgrgid __P((gid_t));
125 extern void ts_setpwfile __P((const char *));
126 extern void ts_setpwent __P((void));
127 extern void ts_endpwent __P((void));
128 extern struct passwd *ts_getpwent __P((void));
129 extern struct passwd *ts_getpwnam __P((const char *));
130 extern struct passwd *ts_getpwuid __P((uid_t));
138 struct privilege *priv;
140 char *p, *grfile, *pwfile, *runas_group, *runas_user;
141 char hbuf[MAXHOSTNAMELEN + 1];
142 int ch, dflag, rval, matched;
144 #if defined(SUDO_DEVEL) && defined(__OpenBSD__)
145 malloc_options = "AFGJPR";
155 grfile = pwfile = runas_group = runas_user = NULL;
156 while ((ch = getopt(argc, argv, "dg:G:h:p:u:")) != -1) {
168 runas_group = optarg;
186 /* Set group/passwd file and init the cache. */
188 my_setgrent = ts_setgrent;
189 my_endgrent = ts_endgrent;
190 my_getgrnam = ts_getgrnam;
191 my_getgrgid = ts_getgrgid;
192 ts_setgrfile(grfile);
195 my_setpwent = ts_setpwent;
196 my_endpwent = ts_endpwent;
197 my_getpwnam = ts_getpwnam;
198 my_getpwuid = ts_getpwuid;
199 ts_setpwfile(pwfile);
207 if ((sudo_user.pw = sudo_getpwnam("nobody")) == NULL)
208 errorx(1, "no passwd entry for nobody!");
209 user_cmnd = user_base = "true";
211 if ((sudo_user.pw = sudo_getpwnam(*argv)) == NULL)
212 errorx(1, "no passwd entry for %s!", *argv);
214 if ((p = strrchr(user_cmnd, '/')) != NULL)
217 user_base = user_cmnd;
221 if (user_host == NULL) {
222 if (gethostname(hbuf, sizeof(hbuf)) != 0)
223 error(1, "gethostname");
224 hbuf[sizeof(hbuf) - 1] = '\0';
227 if ((p = strchr(user_host, '.'))) {
229 user_shost = estrdup(user_host);
232 user_shost = user_host;
235 /* Fill in user_args from NewArgv. */
240 for (size = 0, from = NewArgv + 1; *from; from++)
241 size += strlen(*from) + 1;
243 user_args = (char *) emalloc(size);
244 for (to = user_args, from = NewArgv + 1; *from; from++) {
245 n = strlcpy(to, *from, size - (to - user_args));
246 if (n >= size - (to - user_args))
247 errorx(1, "internal error, init_vars() overflow");
254 /* Initialize default values. */
257 /* Load ip addr/mask for each interface. */
260 /* Allocate space for data structures in the parser. */
261 init_parser("sudoers", 0);
263 if (yyparse() != 0 || parse_error)
264 (void) fputs("Does not parse", stdout);
266 (void) fputs("Parses OK", stdout);
268 if (!update_defaults(SETDEF_ALL))
269 (void) fputs(" (problem with defaults entries)", stdout);
273 * Set runas passwd/group entries based on command line or sudoers.
274 * Note that if runas_group was specified without runas_user we
275 * defer setting runas_pw so the match routines know to ignore it.
277 if (runas_group != NULL) {
278 set_runasgr(runas_group);
279 if (runas_user != NULL)
280 set_runaspw(runas_user);
282 set_runaspw(runas_user ? runas_user : def_runas_default);
285 (void) putchar('\n');
291 /* This loop must match the one in sudoers_lookup() */
292 printf("\nEntries for user %s:\n", user_name);
294 tq_foreach_rev(&userspecs, us) {
295 if (userlist_matches(sudo_user.pw, &us->users) != ALLOW)
297 tq_foreach_rev(&us->privileges, priv) {
299 print_privilege(priv); /* XXX */
301 if (hostlist_matches(&priv->hostlist) == ALLOW) {
302 puts("\thost matched");
303 tq_foreach_rev(&priv->cmndlist, cs) {
304 if (runaslist_matches(&cs->runasuserlist,
305 &cs->runasgrouplist) == ALLOW) {
306 puts("\trunas matched");
307 rval = cmnd_matches(cs->cmnd);
310 printf("\tcmnd %s\n", rval == ALLOW ? "allowed" :
311 rval == DENY ? "denied" : "unmatched");
315 puts("\thost unmatched");
318 printf("\nCommand %s\n", matched == ALLOW ? "allowed" :
319 matched == DENY ? "denied" : "unmatched");
329 if ((runas_pw = sudo_getpwuid(atoi(user + 1))) == NULL)
330 runas_pw = sudo_fakepwnam(user, runas_gr ? runas_gr->gr_gid : 0);
332 if ((runas_pw = sudo_getpwnam(user)) == NULL)
333 errorx(1, "unknown user: %s", user);
342 if ((runas_gr = sudo_getgrgid(atoi(group + 1))) == NULL)
343 runas_gr = sudo_fakegrnam(group);
345 if ((runas_gr = sudo_getgrnam(group)) == NULL)
346 errorx(1, "unknown group: %s", group);
364 const struct passwd *pw;
366 return (pw->pw_passwd);
376 open_sudoers(path, keepopen)
380 return(fopen(path, "r"));
410 struct sudo_command *c;
415 fputs("ALL", stdout);
416 else if (m->type != COMMAND)
417 fputs(m->name, stdout);
419 c = (struct sudo_command *) m->name;
420 printf("%s%s%s", c->cmnd, c->args ? " " : "",
421 c->args ? c->args : "");
431 tq_foreach_fwd(&defaults, d) {
432 (void) fputs("Defaults", stdout);
447 tq_foreach_fwd(&d->binding, m) {
448 if (m != tq_first(&d->binding))
452 printf("\t%s%s", d->op == FALSE ? "!" : "", d->var);
453 if (d->val != NULL) {
454 printf("%c%s", d->op == TRUE ? '=' : d->op, d->val);
464 struct alias *a = (struct alias *)v1;
466 struct sudo_command *c;
470 (void) printf("Host_Alias\t%s = ", a->name);
473 (void) printf("Cmnd_Alias\t%s = ", a->name);
476 (void) printf("User_Alias\t%s = ", a->name);
479 (void) printf("Runas_Alias\t%s = ", a->name);
482 tq_foreach_fwd(&a->members, m) {
483 if (m != tq_first(&a->members))
485 if (m->type == COMMAND) {
486 c = (struct sudo_command *) m->name;
487 printf("%s%s%s", c->cmnd, c->args ? " " : "",
488 c->args ? c->args : "");
490 fputs(m->name, stdout);
497 print_privilege(priv)
498 struct privilege *priv;
505 for (p = priv; p != NULL; p = p->next) {
507 fputs(" : ", stdout);
508 tq_foreach_fwd(&p->hostlist, m) {
509 if (m != tq_first(&p->hostlist))
513 fputs(" = ", stdout);
514 tags.nopasswd = tags.noexec = UNSPEC;
515 tq_foreach_fwd(&p->cmndlist, cs) {
516 if (cs != tq_first(&p->cmndlist))
518 /* XXX - runasgrouplist too */
519 if (!tq_empty(&cs->runasuserlist)) {
521 tq_foreach_fwd(&cs->runasuserlist, m) {
522 if (m != tq_first(&cs->runasuserlist))
530 printf("ROLE=%s ", cs->role);
532 printf("TYPE=%s ", cs->type);
533 #endif /* HAVE_SELINUX */
534 if (cs->tags.nopasswd != UNSPEC && cs->tags.nopasswd != tags.nopasswd)
535 printf("%sPASSWD: ", cs->tags.nopasswd ? "NO" : "");
536 if (cs->tags.noexec != UNSPEC && cs->tags.noexec != tags.noexec)
537 printf("%sEXEC: ", cs->tags.noexec ? "NO" : "");
538 print_member(cs->cmnd);
539 memcpy(&tags, &cs->tags, sizeof(tags));
550 tq_foreach_fwd(&userspecs, us) {
551 tq_foreach_fwd(&us->users, m) {
552 if (m != tq_first(&us->users))
557 print_privilege(us->privileges.first); /* XXX */
568 alias_apply(print_alias, NULL);
577 (void) fprintf(stderr, "usage: %s [-d] [-G grfile] [-g group] [-h host] [-p pwfile] [-u user] <user> <command> [args]\n", getprogname());