2 * Copyright (c) 1993-1996,1998-2004 Todd C. Miller <Todd.Miller@courtesan.com>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 * Sponsored in part by the Defense Advanced Research Projects
17 * Agency (DARPA) and Air Force Research Laboratory, Air Force
18 * Materiel Command, USAF, under agreement number F39502-99-1-0512.
20 * $Sudo: sudo.h,v 1.213 2004/09/08 15:48:23 millert Exp $
26 #include <pathnames.h>
33 * Info pertaining to the invoking user.
37 struct passwd *_runas_pw;
38 struct stat *cmnd_stat;
55 * Return values for sudoers_lookup(), also used as arguments for log_auth()
56 * Note: cannot use '0' as a value here.
58 /* XXX - VALIDATE_SUCCESS and VALIDATE_FAILURE instead? */
59 #define VALIDATE_ERROR 0x001
60 #define VALIDATE_OK 0x002
61 #define VALIDATE_NOT_OK 0x004
62 #define FLAG_CHECK_USER 0x010
63 #define FLAG_NOPASS 0x020
64 #define FLAG_NO_USER 0x040
65 #define FLAG_NO_HOST 0x080
66 #define FLAG_NO_CHECK 0x100
67 #define FLAG_NOEXEC 0x200
70 * Pseudo-boolean values
82 * find_path()/load_cmnd() return values
86 #define NOT_FOUND_DOT -1
89 * Various modes sudo can be in (based on arguments) in octal
91 #define MODE_RUN 000001
92 #define MODE_VALIDATE 000002
93 #define MODE_INVALIDATE 000004
94 #define MODE_KILL 000010
95 #define MODE_VERSION 000020
96 #define MODE_HELP 000040
97 #define MODE_LIST 000100
98 #define MODE_LISTDEFS 000200
99 #define MODE_BACKGROUND 000400
100 #define MODE_SHELL 001000
101 #define MODE_LOGIN_SHELL 002000
102 #define MODE_IMPLIED_SHELL 004000
103 #define MODE_RESET_HOME 010000
104 #define MODE_PRESERVE_GROUPS 020000
105 #define MODE_EDIT 040000
108 * Used with set_perms()
110 #define PERM_ROOT 0x00
111 #define PERM_FULL_ROOT 0x01
112 #define PERM_USER 0x02
113 #define PERM_FULL_USER 0x03
114 #define PERM_SUDOERS 0x04
115 #define PERM_RUNAS 0x05
116 #define PERM_FULL_RUNAS 0x06
117 #define PERM_TIMESTAMP 0x07
120 * Shortcuts for sudo_user contents.
122 #define user_name (sudo_user.pw->pw_name)
123 #define user_passwd (sudo_user.pw->pw_passwd)
124 #define user_uid (sudo_user.pw->pw_uid)
125 #define user_gid (sudo_user.pw->pw_gid)
126 #define user_dir (sudo_user.pw->pw_dir)
127 #define user_shell (sudo_user.shell)
128 #define user_tty (sudo_user.tty)
129 #define user_cwd (sudo_user.cwd)
130 #define user_runas (sudo_user.runas)
131 #define user_cmnd (sudo_user.cmnd)
132 #define user_args (sudo_user.cmnd_args)
133 #define user_base (sudo_user.cmnd_base)
134 #define user_stat (sudo_user.cmnd_stat)
135 #define user_path (sudo_user.path)
136 #define user_prompt (sudo_user.prompt)
137 #define user_host (sudo_user.host)
138 #define user_shost (sudo_user.shost)
139 #define safe_cmnd (sudo_user.cmnd_safe)
140 #define login_class (sudo_user.class_name)
141 #define runas_pw (sudo_user._runas_pw)
144 * We used to use the system definition of PASS_MAX or _PASSWD_LEN,
145 * but that caused problems with various alternate authentication
146 * methods. So, we just define our own and assume that it is >= the
149 #define SUDO_PASS_MAX 256
152 * Flags for lock_file()
154 #define SUDO_LOCK 1 /* lock a file */
155 #define SUDO_TLOCK 2 /* test & lock a file (non-blocking) */
156 #define SUDO_UNLOCK 4 /* unlock a file */
159 * Flags for tgetpass()
161 #define TGP_ECHO 0x01 /* leave echo on when reading passwd */
162 #define TGP_STDIN 0x02 /* read from stdin, not /dev/tty */
169 * Function prototypes
171 #define YY_DECL int yylex __P((void))
173 #ifndef HAVE_CLOSEFROM
174 void closefrom __P((int));
177 char *getcwd __P((char *, size_t size));
180 int utimes __P((const char *, const struct timeval *));
183 int futimes __P((int, const struct timeval *));
185 #ifndef HAVE_SNPRINTF
186 int snprintf __P((char *, size_t, const char *, ...));
188 #ifndef HAVE_VSNPRINTF
189 int vsnprintf __P((char *, size_t, const char *, va_list));
191 #ifndef HAVE_ASPRINTF
192 int asprintf __P((char **, const char *, ...));
194 #ifndef HAVE_VASPRINTF
195 int vasprintf __P((char **, const char *, va_list));
197 #ifndef HAVE_STRCASECMP
198 int strcasecmp __P((const char *, const char *));
201 size_t strlcat __P((char *, const char *, size_t));
204 size_t strlcpy __P((char *, const char *, size_t));
206 char *sudo_goodpath __P((const char *, struct stat *));
207 char *tgetpass __P((const char *, int, int));
208 int find_path __P((char *, char **, struct stat *, char *));
209 void check_user __P((int));
210 void verify_user __P((struct passwd *, char *));
211 int sudoers_lookup __P((int));
213 int sudo_ldap_check __P((int));
214 void sudo_ldap_list_matches __P((void));
216 void set_perms_nosuid __P((int));
217 void set_perms_posix __P((int));
218 void set_perms_suid __P((int));
219 void remove_timestamp __P((int));
220 int check_secureware __P((char *));
221 void sia_attempt_auth __P((void));
222 void pam_attempt_auth __P((void));
223 int yyparse __P((void));
224 void pass_warn __P((FILE *));
225 VOID *emalloc __P((size_t));
226 VOID *emalloc2 __P((size_t, size_t));
227 VOID *erealloc __P((VOID *, size_t));
228 VOID *erealloc3 __P((VOID *, size_t, size_t));
229 char *estrdup __P((const char *));
230 int easprintf __P((char **, const char *, ...));
231 int evasprintf __P((char **, const char *, va_list));
232 void dump_defaults __P((void));
233 void dump_auth_methods __P((void));
234 void init_envtables __P((void));
235 int lock_file __P((int, int));
236 int touch __P((int, char *, struct timespec *));
237 int user_is_exempt __P((void));
238 void set_fqdn __P((void));
239 int set_runaspw __P((char *));
240 char *sudo_getepw __P((const struct passwd *));
241 int pam_prep_user __P((struct passwd *));
242 void zero_bytes __P((volatile VOID *, size_t));
243 int gettime __P((struct timespec *));
246 /* Only provide extern declarations outside of sudo.c. */
248 extern struct sudo_user sudo_user;
249 extern struct passwd *auth_pw;
251 extern FILE *sudoers_fp;
252 extern int tgetpass_flags;
253 extern uid_t timestamp_uid;
255 extern void (*set_perms) __P((int));
261 #endif /* _SUDO_SUDO_H */