Annotation of embedaddon/sudo/include/sudo_debug.h, revision 1.1.1.3
1.1 misho 1: /*
1.1.1.3 ! misho 2: * Copyright (c) 2011-2012 Todd C. Miller <Todd.Miller@courtesan.com>
1.1 misho 3: *
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.
15: */
16:
17: #ifndef _SUDO_DEBUG_H
18: #define _SUDO_DEBUG_H
19:
20: #include <stdarg.h>
21:
22: /*
23: * The priority and subsystem are encoded in a single 32-bit value.
24: * The lower 4 bits are the priority and the top 26 bits are the subsystem.
25: * This allows for 16 priorities and a very large number of subsystems.
26: * Bit 5 is used as a flag to specify whether to log the errno value.
27: * Bit 6 specifies whether to log the function, file and line number data.
28: */
29:
30: /*
31: * Sudo debug priorities, ordered least to most verbose,
32: * in other words, highest to lowest priority. Max pri is 15.
33: * Note: order must match sudo_debug_priorities[]
34: */
35: #define SUDO_DEBUG_CRIT 1 /* critical errors */
36: #define SUDO_DEBUG_ERROR 2 /* non-critical errors */
37: #define SUDO_DEBUG_WARN 3 /* non-fatal warnings */
38: #define SUDO_DEBUG_NOTICE 4 /* non-error condition notices */
39: #define SUDO_DEBUG_DIAG 5 /* diagnostic messages */
40: #define SUDO_DEBUG_INFO 6 /* informational message */
41: #define SUDO_DEBUG_TRACE 7 /* log function enter/exit */
42: #define SUDO_DEBUG_DEBUG 8 /* very verbose debugging */
43:
44: /*
45: * Sudo debug subsystems.
46: * This includes subsystems in the sudoers plugin.
47: * Note: order must match sudo_debug_subsystems[]
48: */
49: #define SUDO_DEBUG_MAIN ( 1<<6) /* sudo main() */
50: #define SUDO_DEBUG_ARGS ( 2<<6) /* command line argument processing */
51: #define SUDO_DEBUG_EXEC ( 3<<6) /* command execution */
52: #define SUDO_DEBUG_PTY ( 4<<6) /* pseudo-tty */
53: #define SUDO_DEBUG_UTMP ( 5<<6) /* utmp file ops */
54: #define SUDO_DEBUG_CONV ( 6<<6) /* user conversation */
55: #define SUDO_DEBUG_PCOMM ( 7<<6) /* plugin communications */
56: #define SUDO_DEBUG_UTIL ( 8<<6) /* utility functions */
57: #define SUDO_DEBUG_NETIF ( 9<<6) /* network interface functions */
58: #define SUDO_DEBUG_AUDIT (10<<6) /* audit */
59: #define SUDO_DEBUG_EDIT (11<<6) /* sudoedit */
60: #define SUDO_DEBUG_SELINUX (12<<6) /* selinux */
61: #define SUDO_DEBUG_LDAP (13<<6) /* sudoers LDAP */
62: #define SUDO_DEBUG_MATCH (14<<6) /* sudoers matching */
63: #define SUDO_DEBUG_PARSER (15<<6) /* sudoers parser */
64: #define SUDO_DEBUG_ALIAS (16<<6) /* sudoers alias functions */
65: #define SUDO_DEBUG_DEFAULTS (17<<6) /* sudoers defaults settings */
66: #define SUDO_DEBUG_AUTH (18<<6) /* authentication functions */
67: #define SUDO_DEBUG_ENV (19<<6) /* environment handling */
68: #define SUDO_DEBUG_LOGGING (20<<6) /* logging functions */
69: #define SUDO_DEBUG_NSS (21<<6) /* network service switch */
70: #define SUDO_DEBUG_RBTREE (22<<6) /* red-black tree functions */
71: #define SUDO_DEBUG_PERMS (23<<6) /* uid/gid swapping functions */
72: #define SUDO_DEBUG_PLUGIN (24<<6) /* main plugin functions */
73: #define SUDO_DEBUG_HOOKS (25<<6) /* hook functions */
1.1.1.2 misho 74: #define SUDO_DEBUG_SSSD (26<<6) /* sudoers SSSD */
1.1 misho 75: #define SUDO_DEBUG_ALL 0xfff0 /* all subsystems */
76:
77: /* Flag to include string version of errno in debug info. */
78: #define SUDO_DEBUG_ERRNO (1<<4)
79:
80: /* Flag to include function, file and line number in debug info. */
81: #define SUDO_DEBUG_LINENO (1<<5)
82:
83: /* Extract priority and convert to an index. */
84: #define SUDO_DEBUG_PRI(n) (((n) & 0xf) - 1)
85:
86: /* Extract subsystem and convert to an index. */
87: #define SUDO_DEBUG_SUBSYS(n) (((n) >> 6) - 1)
88:
89: /*
90: * Wrapper for sudo_debug_enter() that declares __func__ as needed
91: * and sets sudo_debug_subsys for sudo_debug_exit().
92: */
93: #ifdef HAVE___FUNC__
94: # define debug_decl(funcname, subsys) \
95: const int sudo_debug_subsys = (subsys); \
96: sudo_debug_enter(__func__, __FILE__, __LINE__, sudo_debug_subsys);
97: #else
98: # define debug_decl(funcname, subsys) \
99: const int sudo_debug_subsys = (subsys); \
100: const char *__func__ = #funcname; \
101: sudo_debug_enter(__func__, __FILE__, __LINE__, sudo_debug_subsys);
102: #endif
103:
104: /*
105: * Wrappers for sudo_debug_exit() and friends.
106: */
107: #define debug_return \
108: do { \
109: sudo_debug_exit(__func__, __FILE__, __LINE__, sudo_debug_subsys); \
110: return; \
111: } while (0)
112:
113: #define debug_return_int(rval) \
114: do { \
115: int sudo_debug_rval = (rval); \
116: sudo_debug_exit_int(__func__, __FILE__, __LINE__, sudo_debug_subsys, \
117: sudo_debug_rval); \
118: return sudo_debug_rval; \
119: } while (0)
120:
121: #define debug_return_size_t(rval) \
122: do { \
123: size_t sudo_debug_rval = (rval); \
124: sudo_debug_exit_size_t(__func__, __FILE__, __LINE__, sudo_debug_subsys,\
125: sudo_debug_rval); \
126: return sudo_debug_rval; \
127: } while (0)
128:
129: #define debug_return_long(rval) \
130: do { \
131: long sudo_debug_rval = (rval); \
132: sudo_debug_exit_long(__func__, __FILE__, __LINE__, sudo_debug_subsys, \
133: sudo_debug_rval); \
134: return sudo_debug_rval; \
135: } while (0)
136:
137: #define debug_return_bool(rval) \
138: do { \
139: int sudo_debug_rval = (rval); \
140: sudo_debug_exit_bool(__func__, __FILE__, __LINE__, sudo_debug_subsys, \
141: sudo_debug_rval); \
142: return sudo_debug_rval; \
143: } while (0)
144:
145: #define debug_return_str(rval) \
146: do { \
147: const char *sudo_debug_rval = (rval); \
148: sudo_debug_exit_str(__func__, __FILE__, __LINE__, sudo_debug_subsys, \
149: sudo_debug_rval); \
150: return (char *)sudo_debug_rval; \
151: } while (0)
152:
153: #define debug_return_str_masked(rval) \
154: do { \
155: const char *sudo_debug_rval = (rval); \
156: sudo_debug_exit_str_masked(__func__, __FILE__, __LINE__, \
157: sudo_debug_subsys, sudo_debug_rval); \
158: return (char *)sudo_debug_rval; \
159: } while (0)
160:
161: #define debug_return_ptr(rval) \
162: do { \
163: const void *sudo_debug_rval = (rval); \
164: sudo_debug_exit_ptr(__func__, __FILE__, __LINE__, sudo_debug_subsys, \
165: sudo_debug_rval); \
166: return (void *)sudo_debug_rval; \
167: } while (0)
168:
169: /*
170: * Variadic macros are a C99 feature but GNU cpp has supported
171: * a (different) version of them for a long time.
172: */
173: #if defined(__GNUC__) && __GNUC__ == 2
174: # define sudo_debug_printf(pri, fmt...) \
175: sudo_debug_printf2(__func__, __FILE__, __LINE__, (pri)|sudo_debug_subsys, \
1.1.1.2 misho 176: fmt)
1.1 misho 177: #else
178: # define sudo_debug_printf(pri, ...) \
179: sudo_debug_printf2(__func__, __FILE__, __LINE__, (pri)|sudo_debug_subsys, \
180: __VA_ARGS__)
181: #endif
182:
183: #define sudo_debug_execve(pri, path, argv, envp) \
184: sudo_debug_execve2((pri)|sudo_debug_subsys, (path), (argv), (envp))
185:
186: /*
187: * NULL-terminated string lists of priorities and subsystems.
188: */
189: extern const char *const sudo_debug_priorities[];
190: extern const char *const sudo_debug_subsystems[];
191:
192: void sudo_debug_enter(const char *func, const char *file, int line, int subsys);
193: void sudo_debug_execve2(int level, const char *path, char *const argv[], char *const envp[]);
194: void sudo_debug_exit(const char *func, const char *file, int line, int subsys);
195: void sudo_debug_exit_int(const char *func, const char *file, int line, int subsys, int rval);
196: void sudo_debug_exit_long(const char *func, const char *file, int line, int subsys, long rval);
197: void sudo_debug_exit_size_t(const char *func, const char *file, int line, int subsys, size_t rval);
198: void sudo_debug_exit_bool(const char *func, const char *file, int line, int subsys, int rval);
199: void sudo_debug_exit_str(const char *func, const char *file, int line, int subsys, const char *rval);
200: void sudo_debug_exit_str_masked(const char *func, const char *file, int line, int subsys, const char *rval);
201: void sudo_debug_exit_ptr(const char *func, const char *file, int line, int subsys, const void *rval);
202: int sudo_debug_fd_set(int fd);
203: int sudo_debug_init(const char *debugfile, const char *settings);
1.1.1.3 ! misho 204: void sudo_debug_printf2(const char *func, const char *file, int line, int level, const char *fmt, ...) __printflike(5, 6);
! 205: void sudo_debug_vprintf2(const char *func, const char *file, int line, int level, const char *fmt, va_list ap);
1.1 misho 206: void sudo_debug_write(const char *str, int len, int errno_val);
207: void sudo_debug_write2(const char *func, const char *file, int line, const char *str, int len, int errno_val);
208: pid_t sudo_debug_fork(void);
209:
210: #endif /* _SUDO_DEBUG_H */
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