Annotation of src/usr.bin/sudo/sudo.h, Revision 1.17
1.1 millert 1: /*
1.16 millert 2: * Copyright (c) 1993-1996,1998-2004 Todd C. Miller <Todd.Miller@courtesan.com>
1.1 millert 3: *
1.16 millert 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.
7: *
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.
1.1 millert 15: *
1.12 millert 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.
19: *
1.16 millert 20: * $Sudo: sudo.h,v 1.213 2004/09/08 15:48:23 millert Exp $
1.1 millert 21: */
22:
23: #ifndef _SUDO_SUDO_H
24: #define _SUDO_SUDO_H
25:
26: #include <pathnames.h>
1.16 millert 27: #include <limits.h>
1.1 millert 28: #include "compat.h"
29: #include "defaults.h"
30: #include "logging.h"
31:
32: /*
33: * Info pertaining to the invoking user.
34: */
35: struct sudo_user {
36: struct passwd *pw;
1.7 millert 37: struct passwd *_runas_pw;
1.16 millert 38: struct stat *cmnd_stat;
1.7 millert 39: char *path;
40: char *shell;
1.1 millert 41: char *tty;
1.16 millert 42: char cwd[PATH_MAX];
1.1 millert 43: char *host;
44: char *shost;
45: char **runas;
46: char *prompt;
47: char *cmnd;
48: char *cmnd_args;
1.16 millert 49: char *cmnd_base;
50: char *cmnd_safe;
1.4 millert 51: char *class_name;
1.1 millert 52: };
53:
54: /*
55: * Return values for sudoers_lookup(), also used as arguments for log_auth()
56: * Note: cannot use '0' as a value here.
57: */
58: /* XXX - VALIDATE_SUCCESS and VALIDATE_FAILURE instead? */
1.16 millert 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
1.1 millert 68:
69: /*
1.16 millert 70: * Pseudo-boolean values
1.1 millert 71: */
72: #undef TRUE
73: #define TRUE 1
74: #undef FALSE
75: #define FALSE 0
1.16 millert 76: #undef NOMATCH
77: #define NOMATCH -1
78: #undef UNSPEC
79: #define UNSPEC -2
1.1 millert 80:
81: /*
82: * find_path()/load_cmnd() return values
83: */
84: #define FOUND 1
85: #define NOT_FOUND 0
86: #define NOT_FOUND_DOT -1
87:
88: /*
89: * Various modes sudo can be in (based on arguments) in octal
90: */
1.7 millert 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
1.16 millert 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
1.1 millert 106:
107: /*
108: * Used with set_perms()
109: */
110: #define PERM_ROOT 0x00
1.8 millert 111: #define PERM_FULL_ROOT 0x01
112: #define PERM_USER 0x02
1.9 millert 113: #define PERM_FULL_USER 0x03
114: #define PERM_SUDOERS 0x04
115: #define PERM_RUNAS 0x05
1.16 millert 116: #define PERM_FULL_RUNAS 0x06
117: #define PERM_TIMESTAMP 0x07
1.1 millert 118:
119: /*
120: * Shortcuts for sudo_user contents.
121: */
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)
1.7 millert 127: #define user_shell (sudo_user.shell)
1.1 millert 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)
1.16 millert 133: #define user_base (sudo_user.cmnd_base)
134: #define user_stat (sudo_user.cmnd_stat)
1.7 millert 135: #define user_path (sudo_user.path)
1.1 millert 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)
1.4 millert 140: #define login_class (sudo_user.class_name)
1.7 millert 141: #define runas_pw (sudo_user._runas_pw)
1.1 millert 142:
143: /*
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
147: * system max.
148: */
149: #define SUDO_PASS_MAX 256
150:
151: /*
152: * Flags for lock_file()
153: */
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 */
1.3 millert 157:
158: /*
1.4 millert 159: * Flags for tgetpass()
160: */
161: #define TGP_ECHO 0x01 /* leave echo on when reading passwd */
162: #define TGP_STDIN 0x02 /* read from stdin, not /dev/tty */
163:
1.17 ! millert 164: struct passwd;
! 165: struct timespec;
! 166: struct timeval;
! 167:
1.4 millert 168: /*
1.1 millert 169: * Function prototypes
170: */
171: #define YY_DECL int yylex __P((void))
172:
1.14 millert 173: #ifndef HAVE_CLOSEFROM
174: void closefrom __P((int));
175: #endif
1.1 millert 176: #ifndef HAVE_GETCWD
177: char *getcwd __P((char *, size_t size));
178: #endif
1.16 millert 179: #ifndef HAVE_UTIMES
180: int utimes __P((const char *, const struct timeval *));
181: #endif
182: #ifdef HAVE_FUTIME
183: int futimes __P((int, const struct timeval *));
184: #endif
1.1 millert 185: #ifndef HAVE_SNPRINTF
186: int snprintf __P((char *, size_t, const char *, ...));
187: #endif
188: #ifndef HAVE_VSNPRINTF
189: int vsnprintf __P((char *, size_t, const char *, va_list));
190: #endif
191: #ifndef HAVE_ASPRINTF
192: int asprintf __P((char **, const char *, ...));
193: #endif
194: #ifndef HAVE_VASPRINTF
195: int vasprintf __P((char **, const char *, va_list));
196: #endif
197: #ifndef HAVE_STRCASECMP
198: int strcasecmp __P((const char *, const char *));
199: #endif
1.10 millert 200: #ifndef HAVE_STRLCAT
201: size_t strlcat __P((char *, const char *, size_t));
202: #endif
203: #ifndef HAVE_STRLCPY
204: size_t strlcpy __P((char *, const char *, size_t));
205: #endif
1.16 millert 206: char *sudo_goodpath __P((const char *, struct stat *));
1.1 millert 207: char *tgetpass __P((const char *, int, int));
1.16 millert 208: int find_path __P((char *, char **, struct stat *, char *));
209: void check_user __P((int));
1.5 millert 210: void verify_user __P((struct passwd *, char *));
1.1 millert 211: int sudoers_lookup __P((int));
1.16 millert 212: #ifdef HAVE_LDAP
213: int sudo_ldap_check __P((int));
214: void sudo_ldap_list_matches __P((void));
215: #endif
1.10 millert 216: void set_perms_nosuid __P((int));
217: void set_perms_posix __P((int));
218: void set_perms_suid __P((int));
1.1 millert 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));
1.10 millert 226: VOID *emalloc2 __P((size_t, size_t));
1.1 millert 227: VOID *erealloc __P((VOID *, size_t));
1.10 millert 228: VOID *erealloc3 __P((VOID *, size_t, size_t));
1.1 millert 229: char *estrdup __P((const char *));
1.5 millert 230: int easprintf __P((char **, const char *, ...));
231: int evasprintf __P((char **, const char *, va_list));
1.1 millert 232: void dump_defaults __P((void));
233: void dump_auth_methods __P((void));
1.7 millert 234: void init_envtables __P((void));
1.1 millert 235: int lock_file __P((int, int));
1.16 millert 236: int touch __P((int, char *, struct timespec *));
1.4 millert 237: int user_is_exempt __P((void));
1.2 millert 238: void set_fqdn __P((void));
1.16 millert 239: int set_runaspw __P((char *));
240: char *sudo_getepw __P((const struct passwd *));
1.7 millert 241: int pam_prep_user __P((struct passwd *));
1.13 millert 242: void zero_bytes __P((volatile VOID *, size_t));
1.16 millert 243: int gettime __P((struct timespec *));
1.1 millert 244: YY_DECL;
245:
246: /* Only provide extern declarations outside of sudo.c. */
1.11 millert 247: #ifndef _SUDO_MAIN
1.1 millert 248: extern struct sudo_user sudo_user;
1.5 millert 249: extern struct passwd *auth_pw;
1.1 millert 250:
251: extern FILE *sudoers_fp;
1.4 millert 252: extern int tgetpass_flags;
1.10 millert 253: extern uid_t timestamp_uid;
1.7 millert 254:
1.10 millert 255: extern void (*set_perms) __P((int));
1.1 millert 256: #endif
1.15 otto 257: #ifndef errno
1.1 millert 258: extern int errno;
1.15 otto 259: #endif
1.1 millert 260:
261: #endif /* _SUDO_SUDO_H */
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