Annotation of embedaddon/sudo/plugins/sudoers/sudoers.h, revision 1.1.1.5
1.1 misho 1: /*
1.1.1.4 misho 2: * Copyright (c) 1993-1996, 1998-2005, 2007-2013
1.1 misho 3: * Todd C. Miller <Todd.Miller@courtesan.com>
4: *
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.
8: *
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: *
17: * Sponsored in part by the Defense Advanced Research Projects
18: * Agency (DARPA) and Air Force Research Laboratory, Air Force
19: * Materiel Command, USAF, under agreement number F39502-99-1-0512.
20: */
21:
1.1.1.4 misho 22: #ifndef _SUDOERS_SUDOERS_H
23: #define _SUDOERS_SUDOERS_H
1.1 misho 24:
25: #include <limits.h>
1.1.1.2 misho 26: #ifdef HAVE_STDBOOL_H
27: # include <stdbool.h>
28: #else
29: # include "compat/stdbool.h"
30: #endif /* HAVE_STDBOOL_H */
1.1 misho 31:
32: #include <pathnames.h>
33: #include "missing.h"
1.1.1.5 ! misho 34: #include "fatal.h"
1.1 misho 35: #include "alloc.h"
36: #include "list.h"
37: #include "fileops.h"
38: #include "defaults.h"
39: #include "logging.h"
40: #include "sudo_nss.h"
41: #include "sudo_plugin.h"
1.1.1.2 misho 42: #include "sudo_debug.h"
1.1 misho 43:
44: #define DEFAULT_TEXT_DOMAIN "sudoers"
45: #include "gettext.h"
46:
47: /*
48: * Password db and supplementary group IDs with associated group names.
49: */
50: struct group_list {
51: char **groups;
52: GETGROUPS_T *gids;
53: int ngroups;
54: int ngids;
55: };
56:
57: /*
58: * Info pertaining to the invoking user.
59: */
60: struct sudo_user {
61: struct passwd *pw;
62: struct passwd *_runas_pw;
63: struct group *_runas_gr;
64: struct stat *cmnd_stat;
65: char *name;
66: char *path;
67: char *tty;
68: char *ttypath;
69: char *host;
70: char *shost;
1.1.1.5 ! misho 71: char *runhost;
! 72: char *srunhost;
1.1 misho 73: char *prompt;
74: char *cmnd;
75: char *cmnd_args;
76: char *cmnd_base;
77: char *cmnd_safe;
78: char *class_name;
79: char *krb5_ccname;
80: struct group_list *group_list;
81: char * const * env_vars;
82: #ifdef HAVE_SELINUX
83: char *role;
84: char *type;
85: #endif
1.1.1.3 misho 86: #ifdef HAVE_PRIV_SET
87: char *privs;
88: char *limitprivs;
89: #endif
1.1.1.4 misho 90: const char *cwd;
1.1 misho 91: char *iolog_file;
1.1.1.3 misho 92: GETGROUPS_T *gids;
93: int ngids;
1.1 misho 94: int closefrom;
95: int lines;
96: int cols;
1.1.1.3 misho 97: int flags;
1.1.1.4 misho 98: int max_groups;
99: mode_t umask;
1.1 misho 100: uid_t uid;
101: uid_t gid;
1.1.1.4 misho 102: pid_t sid;
1.1 misho 103: };
104:
105: /*
1.1.1.3 misho 106: * sudo_user flag values
107: */
108: #define RUNAS_USER_SPECIFIED 0x01
109: #define RUNAS_GROUP_SPECIFIED 0x02
110:
111: /*
1.1 misho 112: * Return values for sudoers_lookup(), also used as arguments for log_auth()
113: * Note: cannot use '0' as a value here.
114: */
115: /* XXX - VALIDATE_SUCCESS and VALIDATE_FAILURE instead? */
116: #define VALIDATE_ERROR 0x001
117: #define VALIDATE_OK 0x002
118: #define VALIDATE_NOT_OK 0x004
119: #define FLAG_CHECK_USER 0x010
120: #define FLAG_NO_USER 0x020
121: #define FLAG_NO_HOST 0x040
122: #define FLAG_NO_CHECK 0x080
1.1.1.3 misho 123: #define FLAG_NON_INTERACTIVE 0x100
124: #define FLAG_BAD_PASSWORD 0x200
125: #define FLAG_AUTH_ERROR 0x400
1.1 misho 126:
127: /*
128: * find_path()/load_cmnd() return values
129: */
130: #define FOUND 0
131: #define NOT_FOUND 1
132: #define NOT_FOUND_DOT 2
133:
134: /*
135: * Various modes sudo can be in (based on arguments) in hex
136: */
137: #define MODE_RUN 0x00000001
138: #define MODE_EDIT 0x00000002
139: #define MODE_VALIDATE 0x00000004
140: #define MODE_INVALIDATE 0x00000008
141: #define MODE_KILL 0x00000010
142: #define MODE_VERSION 0x00000020
143: #define MODE_HELP 0x00000040
144: #define MODE_LIST 0x00000080
145: #define MODE_CHECK 0x00000100
146: #define MODE_LISTDEFS 0x00000200
147: #define MODE_MASK 0x0000ffff
148:
149: /* Mode flags */
150: #define MODE_BACKGROUND 0x00010000 /* XXX - unused */
151: #define MODE_SHELL 0x00020000
152: #define MODE_LOGIN_SHELL 0x00040000
153: #define MODE_IMPLIED_SHELL 0x00080000
154: #define MODE_RESET_HOME 0x00100000
155: #define MODE_PRESERVE_GROUPS 0x00200000
156: #define MODE_PRESERVE_ENV 0x00400000
157: #define MODE_NONINTERACTIVE 0x00800000
158: #define MODE_IGNORE_TICKET 0x01000000
159:
160: /*
161: * Used with set_perms()
162: */
163: #define PERM_INITIAL 0x00
164: #define PERM_ROOT 0x01
165: #define PERM_USER 0x02
166: #define PERM_FULL_USER 0x03
167: #define PERM_SUDOERS 0x04
168: #define PERM_RUNAS 0x05
169: #define PERM_TIMESTAMP 0x06
170: #define PERM_NOEXIT 0x10 /* flag */
171: #define PERM_MASK 0xf0
172:
173: /*
174: * Shortcuts for sudo_user contents.
175: */
176: #define user_name (sudo_user.name)
177: #define user_uid (sudo_user.uid)
178: #define user_gid (sudo_user.gid)
1.1.1.4 misho 179: #define user_sid (sudo_user.sid)
180: #define user_umask (sudo_user.umask)
1.1 misho 181: #define user_passwd (sudo_user.pw->pw_passwd)
182: #define user_dir (sudo_user.pw->pw_dir)
1.1.1.3 misho 183: #define user_gids (sudo_user.gids)
184: #define user_ngids (sudo_user.ngids)
1.1 misho 185: #define user_group_list (sudo_user.group_list)
186: #define user_tty (sudo_user.tty)
187: #define user_ttypath (sudo_user.ttypath)
188: #define user_cwd (sudo_user.cwd)
189: #define user_cmnd (sudo_user.cmnd)
190: #define user_args (sudo_user.cmnd_args)
191: #define user_base (sudo_user.cmnd_base)
192: #define user_stat (sudo_user.cmnd_stat)
193: #define user_path (sudo_user.path)
194: #define user_prompt (sudo_user.prompt)
195: #define user_host (sudo_user.host)
196: #define user_shost (sudo_user.shost)
1.1.1.5 ! misho 197: #define user_runhost (sudo_user.runhost)
! 198: #define user_srunhost (sudo_user.srunhost)
1.1 misho 199: #define user_ccname (sudo_user.krb5_ccname)
200: #define safe_cmnd (sudo_user.cmnd_safe)
201: #define login_class (sudo_user.class_name)
202: #define runas_pw (sudo_user._runas_pw)
203: #define runas_gr (sudo_user._runas_gr)
204: #define user_role (sudo_user.role)
205: #define user_type (sudo_user.type)
206: #define user_closefrom (sudo_user.closefrom)
1.1.1.3 misho 207: #define runas_privs (sudo_user.privs)
208: #define runas_limitprivs (sudo_user.limitprivs)
1.1 misho 209:
210: #ifdef __TANDEM
1.1.1.4 misho 211: # define ROOT_UID 65535
1.1 misho 212: #else
1.1.1.4 misho 213: # define ROOT_UID 0
1.1 misho 214: #endif
1.1.1.4 misho 215: #define ROOT_GID 0
1.1 misho 216:
217: struct lbuf;
218: struct passwd;
219: struct stat;
220: struct timeval;
221:
222: /*
223: * Function prototypes
224: */
1.1.1.4 misho 225: #define YY_DECL int sudoerslex(void)
1.1 misho 226:
227: /* goodpath.c */
1.1.1.2 misho 228: bool sudo_goodpath(const char *, struct stat *);
1.1 misho 229:
230: /* findpath.c */
231: int find_path(char *, char **, struct stat *, char *, int);
232:
233: /* check.c */
1.1.1.4 misho 234: int check_user(int validate, int mode);
1.1.1.2 misho 235: bool user_is_exempt(void);
1.1 misho 236:
1.1.1.4 misho 237: /* prompt.c */
238: char *expand_prompt(const char *old_prompt, const char *user, const char *host);
239:
240: /* timestamp.c */
241: void remove_timestamp(bool);
242: bool set_lectured(void);
243:
1.1 misho 244: /* sudo_auth.c */
1.1.1.4 misho 245: bool sudo_auth_needs_end_session(void);
1.1.1.3 misho 246: int verify_user(struct passwd *pw, char *prompt, int validated);
1.1.1.2 misho 247: int sudo_auth_begin_session(struct passwd *pw, char **user_env[]);
248: int sudo_auth_end_session(struct passwd *pw);
1.1 misho 249: int sudo_auth_init(struct passwd *pw);
250: int sudo_auth_cleanup(struct passwd *pw);
251:
252: /* parse.c */
253: int sudo_file_open(struct sudo_nss *);
254: int sudo_file_close(struct sudo_nss *);
255: int sudo_file_setdefs(struct sudo_nss *);
256: int sudo_file_lookup(struct sudo_nss *, int, int);
257: int sudo_file_parse(struct sudo_nss *);
258: int sudo_file_display_cmnd(struct sudo_nss *, struct passwd *);
259: int sudo_file_display_defaults(struct sudo_nss *, struct passwd *, struct lbuf *);
260: int sudo_file_display_bound_defaults(struct sudo_nss *, struct passwd *, struct lbuf *);
261: int sudo_file_display_privs(struct sudo_nss *, struct passwd *, struct lbuf *);
262:
263: /* set_perms.c */
264: void rewind_perms(void);
265: int set_perms(int);
266: void restore_perms(void);
267: int pam_prep_user(struct passwd *);
268:
269: /* gram.y */
1.1.1.4 misho 270: int sudoersparse(void);
1.1 misho 271:
272: /* toke.l */
273: YY_DECL;
1.1.1.2 misho 274: extern const char *sudoers_file;
275: extern mode_t sudoers_mode;
276: extern uid_t sudoers_uid;
277: extern gid_t sudoers_gid;
1.1 misho 278:
279: /* defaults.c */
280: void dump_defaults(void);
281: void dump_auth_methods(void);
282:
283: /* getspwuid.c */
284: char *sudo_getepw(const struct passwd *);
285:
286: /* sudo_nss.c */
287: void display_privs(struct sudo_nss_list *, struct passwd *);
1.1.1.2 misho 288: bool display_cmnd(struct sudo_nss_list *, struct passwd *);
1.1 misho 289:
290: /* pwutil.c */
1.1.1.3 misho 291: __dso_public struct group *sudo_getgrgid(gid_t);
292: __dso_public struct group *sudo_getgrnam(const char *);
293: __dso_public void sudo_gr_addref(struct group *);
294: __dso_public void sudo_gr_delref(struct group *);
295: bool user_in_group(struct passwd *, const char *);
296: struct group *sudo_fakegrnam(const char *);
297: struct group_list *sudo_get_grlist(struct passwd *pw);
298: struct passwd *sudo_fakepwnam(const char *, gid_t);
1.1.1.4 misho 299: struct passwd *sudo_mkpwent(const char *user, uid_t uid, gid_t gid, const char *home, const char *shell);
1.1.1.3 misho 300: struct passwd *sudo_getpwnam(const char *);
301: struct passwd *sudo_getpwuid(uid_t);
1.1 misho 302: void sudo_endgrent(void);
303: void sudo_endpwent(void);
304: void sudo_endspent(void);
1.1.1.3 misho 305: void sudo_grlist_addref(struct group_list *);
306: void sudo_grlist_delref(struct group_list *);
307: void sudo_pw_addref(struct passwd *);
308: void sudo_pw_delref(struct passwd *);
1.1.1.4 misho 309: void sudo_set_grlist(struct passwd *pw, char * const *groups,
310: char * const *gids);
1.1.1.3 misho 311: void sudo_setgrent(void);
312: void sudo_setpwent(void);
313: void sudo_setspent(void);
1.1 misho 314:
315: /* timestr.c */
316: char *get_timestr(time_t, int);
317:
318: /* atobool.c */
319: int atobool(const char *str);
320:
1.1.1.5 ! misho 321: /* atoid.c */
! 322: int atoid(const char *str, const char *sep, char **endp, const char **errstr);
! 323:
1.1 misho 324: /* boottime.c */
325: int get_boottime(struct timeval *);
326:
327: /* iolog.c */
1.1.1.4 misho 328: int io_set_max_sessid(const char *sessid);
1.1.1.3 misho 329: void io_nextid(char *iolog_dir, char *iolog_dir_fallback, char sessid[7]);
1.1 misho 330:
331: /* iolog_path.c */
332: char *expand_iolog_path(const char *prefix, const char *dir, const char *file,
333: char **slashp);
334:
335: /* env.c */
336: char **env_get(void);
1.1.1.5 ! misho 337: void env_merge(char * const envp[]);
1.1 misho 338: void env_init(char * const envp[]);
339: void init_envtables(void);
340: void insert_env_vars(char * const envp[]);
341: void read_env_file(const char *, int);
342: void rebuild_env(void);
343: void validate_env_vars(char * const envp[]);
1.1.1.2 misho 344: int sudo_setenv(const char *var, const char *val, int overwrite);
345: int sudo_unsetenv(const char *var);
346: char *sudo_getenv(const char *name);
347: int sudoers_hook_getenv(const char *name, char **value, void *closure);
348: int sudoers_hook_putenv(char *string, void *closure);
349: int sudoers_hook_setenv(const char *name, const char *value, int overwrite, void *closure);
350: int sudoers_hook_unsetenv(const char *name, void *closure);
1.1 misho 351:
352: /* fmt_string.c */
353: char *fmt_string(const char *, const char *);
354:
355: /* sudoers.c */
1.1.1.2 misho 356: FILE *open_sudoers(const char *, bool, bool *);
1.1.1.4 misho 357: int sudoers_policy_init(void *info, char * const envp[]);
358: int sudoers_policy_main(int argc, char * const argv[], int pwflag, char *env_add[], void *closure);
359: void sudoers_cleanup(void);
360:
361: /* policy.c */
362: int sudoers_policy_deserialize_info(void *v, char **runas_user, char **runas_group);
363: int sudoers_policy_exec_setup(char *argv[], char *envp[], mode_t cmnd_umask, char *iolog_path, void *v);
364: extern const char *path_ldap_conf;
365: extern const char *path_ldap_secret;
1.1 misho 366:
367: /* aix.c */
368: void aix_restoreauthdb(void);
369: void aix_setauthdb(char *user);
370:
371: /* group_plugin.c */
372: int group_plugin_load(char *plugin_info);
373: void group_plugin_unload(void);
374: int group_plugin_query(const char *user, const char *group,
375: const struct passwd *pwd);
376:
377: /* setgroups.c */
378: int sudo_setgroups(int ngids, const GETGROUPS_T *gids);
379:
1.1.1.5 ! misho 380: /* gidlist.c */
! 381: int parse_gid_list(const char *gidstr, const gid_t *basegid, GETGROUPS_T **gidsp);
! 382:
1.1 misho 383: #ifndef _SUDO_MAIN
384: extern struct sudo_user sudo_user;
385: extern struct passwd *list_pw;
386: extern int long_list;
387: extern int sudo_mode;
388: extern uid_t timestamp_uid;
389: extern sudo_conv_t sudo_conv;
390: #endif
391:
1.1.1.4 misho 392: #endif /* _SUDOERS_SUDOERS_H */
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