1 /* $NetBSD: log.h,v 1.17 2021/04/19 14:40:15 christos Exp $ */ 2 /* $OpenBSD: log.h,v 1.33 2021/04/15 16:24:31 markus Exp $ */ 3 4 /* 5 * Author: Tatu Ylonen <ylo@cs.hut.fi> 6 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland 7 * All rights reserved 8 * 9 * As far as I am concerned, the code I have written for this software 10 * can be used freely for any purpose. Any derived versions of this 11 * software must be clearly marked as such, and if the derived work is 12 * incompatible with the protocol description in the RFC file, it must be 13 * called by a name other than "ssh" or "Secure Shell". 14 */ 15 16 #ifndef SSH_LOG_H 17 #define SSH_LOG_H 18 19 #include <stdarg.h> /* va_list */ 20 #include "ssherr.h" /* ssh_err() */ 21 22 /* Supported syslog facilities and levels. */ 23 typedef enum { 24 SYSLOG_FACILITY_DAEMON, 25 SYSLOG_FACILITY_USER, 26 SYSLOG_FACILITY_AUTH, 27 SYSLOG_FACILITY_LOCAL0, 28 SYSLOG_FACILITY_LOCAL1, 29 SYSLOG_FACILITY_LOCAL2, 30 SYSLOG_FACILITY_LOCAL3, 31 SYSLOG_FACILITY_LOCAL4, 32 SYSLOG_FACILITY_LOCAL5, 33 SYSLOG_FACILITY_LOCAL6, 34 SYSLOG_FACILITY_LOCAL7, 35 SYSLOG_FACILITY_NOT_SET = -1 36 } SyslogFacility; 37 38 typedef enum { 39 SYSLOG_LEVEL_QUIET, 40 SYSLOG_LEVEL_FATAL, 41 SYSLOG_LEVEL_ERROR, 42 SYSLOG_LEVEL_INFO, 43 SYSLOG_LEVEL_VERBOSE, 44 SYSLOG_LEVEL_DEBUG1, 45 SYSLOG_LEVEL_DEBUG2, 46 SYSLOG_LEVEL_DEBUG3, 47 SYSLOG_LEVEL_NOT_SET = -1 48 } LogLevel; 49 50 typedef void (log_handler_fn)(LogLevel, int, const char *, void *); 51 52 void log_init(const char *, LogLevel, SyslogFacility, int); 53 LogLevel log_level_get(void); 54 int log_change_level(LogLevel); 55 int log_is_on_stderr(void); 56 void log_redirect_stderr_to(const char *); 57 void log_verbose_add(const char *); 58 void log_verbose_reset(void); 59 60 SyslogFacility log_facility_number(char *); 61 const char * log_facility_name(SyslogFacility); 62 LogLevel log_level_number(char *); 63 const char * log_level_name(LogLevel); 64 65 void set_log_handler(log_handler_fn *, void *); 66 void cleanup_exit(int) __attribute__((noreturn)); 67 68 void sshlog(const char *, const char *, int, int, 69 LogLevel, const char *, const char *, ...) 70 __attribute__((format(printf, 7, 8))); 71 void sshlogv(const char *, const char *, int, int, 72 LogLevel, const char *, const char *, va_list); 73 void sshsigdie(const char *, const char *, int, int, 74 LogLevel, const char *, const char *, ...) __attribute__((noreturn)) 75 __attribute__((format(printf, 7, 8))); 76 void sshlogdie(const char *, const char *, int, int, 77 LogLevel, const char *, const char *, ...) __attribute__((noreturn)) 78 __attribute__((format(printf, 7, 8))); 79 void sshfatal(const char *, const char *, int, int, 80 LogLevel, const char *, const char *, ...) __attribute__((noreturn)) 81 __attribute__((format(printf, 7, 8))); 82 void sshlogdirect(LogLevel, int, const char *, ...) 83 __attribute__((format(printf, 3, 4))); 84 85 #define do_log2(level, ...) sshlog(__FILE__, __func__, __LINE__, 0, level, NULL, __VA_ARGS__) 86 #define debug3(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG3, NULL, __VA_ARGS__) 87 #define debug2(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG2, NULL, __VA_ARGS__) 88 #define debug(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG1, NULL, __VA_ARGS__) 89 #define verbose(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_VERBOSE, NULL, __VA_ARGS__) 90 #define logit(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_INFO, NULL, __VA_ARGS__) 91 #define error(...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__) 92 #define fatal(...) sshfatal(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_FATAL, NULL, __VA_ARGS__) 93 #define logdie(...) sshlogdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__) 94 #define sigdie(...) sshsigdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__) 95 96 /* Variants that prepend the caller's function */ 97 #define do_log2_f(level, ...) sshlog(__FILE__, __func__, __LINE__, 1, level, NULL, __VA_ARGS__) 98 #define debug3_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG3, NULL, __VA_ARGS__) 99 #define debug2_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG2, NULL, __VA_ARGS__) 100 #define debug_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG1, NULL, __VA_ARGS__) 101 #define verbose_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_VERBOSE, NULL, __VA_ARGS__) 102 #define logit_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_INFO, NULL, __VA_ARGS__) 103 #define error_f(...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__) 104 #define fatal_f(...) sshfatal(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_FATAL, NULL, __VA_ARGS__) 105 #define logdie_f(...) sshlogdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__) 106 #define sigdie_f(...) sshsigdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, NULL, __VA_ARGS__) 107 108 /* Variants that appends a ssh_err message */ 109 #define do_log2_r(r, level, ...) sshlog(__FILE__, __func__, __LINE__, 0, level, ssh_err(r), __VA_ARGS__) 110 #define debug3_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG3, ssh_err(r), __VA_ARGS__) 111 #define debug2_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG2, ssh_err(r), __VA_ARGS__) 112 #define debug_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_DEBUG1, ssh_err(r), __VA_ARGS__) 113 #define verbose_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_VERBOSE, ssh_err(r), __VA_ARGS__) 114 #define logit_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_INFO, ssh_err(r), __VA_ARGS__) 115 #define error_r(r, ...) sshlog(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__) 116 #define fatal_r(r, ...) sshfatal(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_FATAL, ssh_err(r), __VA_ARGS__) 117 #define logdie_r(r, ...) sshlogdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__) 118 #define sigdie_r(r, ...) sshsigdie(__FILE__, __func__, __LINE__, 0, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__) 119 #define do_log2_fr(r, level, ...) sshlog(__FILE__, __func__, __LINE__, 1, level, ssh_err(r), __VA_ARGS__) 120 #define debug3_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG3, ssh_err(r), __VA_ARGS__) 121 #define debug2_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG2, ssh_err(r), __VA_ARGS__) 122 #define debug_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_DEBUG1, ssh_err(r), __VA_ARGS__) 123 #define verbose_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_VERBOSE, ssh_err(r), __VA_ARGS__) 124 #define logit_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_INFO, ssh_err(r), __VA_ARGS__) 125 #define error_fr(r, ...) sshlog(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__) 126 #define fatal_fr(r, ...) sshfatal(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_FATAL, ssh_err(r), __VA_ARGS__) 127 #define logdie_fr(r, ...) sshlogdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__) 128 #define sigdie_fr(r, ...) sshsigdie(__FILE__, __func__, __LINE__, 1, SYSLOG_LEVEL_ERROR, ssh_err(r), __VA_ARGS__) 129 130 #endif 131