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/*
Unix SMB/CIFS implementation.
SMB debug stuff
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) John H Terpstra 1996-1998
Copyright (C) Luke Kenneth Casson Leighton 1996-1998
Copyright (C) Paul Ashton 1998
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _DEBUG_H
#define _DEBUG_H
/* -------------------------------------------------------------------------- **
* Debugging code. See also debug.c
*/
/* the maximum debug level to compile into the code. This assumes a good
optimising compiler that can remove unused code
for embedded or low-memory systems set this to a value like 2 to get
only important messages. This gives *much* smaller binaries
*/
#ifndef MAX_DEBUG_LEVEL
#define MAX_DEBUG_LEVEL 1000
#endif
int Debug1( const char *, ... ) PRINTF_ATTRIBUTE(1,2);
bool dbgtext( const char *, ... ) PRINTF_ATTRIBUTE(1,2);
bool dbghdrclass( int level, int cls, const char *location, const char *func);
bool dbghdr( int level, const char *location, const char *func);
/*
* Redefine DEBUGLEVEL because so we don't have to change every source file
* that *unnecessarily* references it.
*/
#define DEBUGLEVEL DEBUGLEVEL_CLASS[DBGC_ALL]
/*
* Define all new debug classes here. A class is represented by an entry in
* the DEBUGLEVEL_CLASS array. Index zero of this arrray is equivalent to the
* old DEBUGLEVEL. Any source file that does NOT add the following lines:
*
* #undef DBGC_CLASS
* #define DBGC_CLASS DBGC_<your class name here>
*
* at the start of the file (after #include "includes.h") will default to
* using index zero, so it will behaive just like it always has.
*/
#define DBGC_ALL 0 /* index equivalent to DEBUGLEVEL */
#define DBGC_TDB 1
#define DBGC_PRINTDRIVERS 2
#define DBGC_LANMAN 3
#define DBGC_SMB 4
#define DBGC_RPC_PARSE 5
#define DBGC_RPC_SRV 6
#define DBGC_RPC_CLI 7
#define DBGC_PASSDB 8
#define DBGC_SAM 9
#define DBGC_AUTH 10
#define DBGC_WINBIND 11
#define DBGC_VFS 12
#define DBGC_IDMAP 13
#define DBGC_QUOTA 14
#define DBGC_ACLS 15
#define DBGC_LOCKING 16
#define DBGC_MSDFS 17
#define DBGC_DMAPI 18
#define DBGC_REGISTRY 19
/* Always ensure this is updated when new fixed classes area added, to ensure the array in debug.c is the right size */
#define DBGC_MAX_FIXED 19
/* So you can define DBGC_CLASS before including debug.h */
#ifndef DBGC_CLASS
#define DBGC_CLASS 0 /* override as shown above */
#endif
extern int *DEBUGLEVEL_CLASS;
/* Debugging macros
*
* DEBUGLVL()
* If the 'file specific' debug class level >= level OR the system-wide
* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
* generate a header using the default macros for file, line, and
* function name. Returns True if the debug level was <= DEBUGLEVEL.
*
* Example: if( DEBUGLVL( 2 ) ) dbgtext( "Some text.\n" );
*
* DEBUG()
* If the 'file specific' debug class level >= level OR the system-wide
* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
* generate a header using the default macros for file, line, and
* function name. Each call to DEBUG() generates a new header *unless* the
* previous debug output was unterminated (i.e. no '\n').
* See debug.c:dbghdr() for more info.
*
* Example: DEBUG( 2, ("Some text and a value %d.\n", value) );
*
* DEBUGC()
* If the 'macro specified' debug class level >= level OR the system-wide
* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
* generate a header using the default macros for file, line, and
* function name. Each call to DEBUG() generates a new header *unless* the
* previous debug output was unterminated (i.e. no '\n').
* See debug.c:dbghdr() for more info.
*
* Example: DEBUGC( DBGC_TDB, 2, ("Some text and a value %d.\n", value) );
*
* DEBUGADD(), DEBUGADDC()
* Same as DEBUG() and DEBUGC() except the text is appended to the previous
* DEBUG(), DEBUGC(), DEBUGADD(), DEBUGADDC() with out another interviening
* header.
*
* Example: DEBUGADD( 2, ("Some text and a value %d.\n", value) );
* DEBUGADDC( DBGC_TDB, 2, ("Some text and a value %d.\n", value) );
*
* Note: If the debug class has not be redeined (see above) then the optimizer
* will remove the extra conditional test.
*/
/*
* From talloc.c:
*/
/* these macros gain us a few percent of speed on gcc */
#if (__GNUC__ >= 3)
/* the strange !! is to ensure that __builtin_expect() takes either 0 or 1
as its first argument */
#ifndef likely
#define likely(x) __builtin_expect(!!(x), 1)
#endif
#ifndef unlikely
#define unlikely(x) __builtin_expect(!!(x), 0)
#endif
#else
#ifndef likely
#define likely(x) (x)
#endif
#ifndef unlikely
#define unlikely(x) (x)
#endif
#endif
#define CHECK_DEBUGLVL( level ) \
( ((level) <= MAX_DEBUG_LEVEL) && \
unlikely(DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level)))
#define DEBUGLVL( level ) \
( CHECK_DEBUGLVL(level) \
&& dbghdrclass( level, DBGC_CLASS, __location__, __FUNCTION__ ) )
#define DEBUG( level, body ) \
(void)( ((level) <= MAX_DEBUG_LEVEL) && \
unlikely(DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level)) \
&& (dbghdrclass( level, DBGC_CLASS, __location__, __FUNCTION__ )) \
&& (dbgtext body) )
#define DEBUGC( dbgc_class, level, body ) \
(void)( ((level) <= MAX_DEBUG_LEVEL) && \
unlikely(DEBUGLEVEL_CLASS[ dbgc_class ] >= (level)) \
&& (dbghdrclass( level, DBGC_CLASS, __location__, __FUNCTION__ )) \
&& (dbgtext body) )
#define DEBUGADD( level, body ) \
(void)( ((level) <= MAX_DEBUG_LEVEL) && \
unlikely(DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level)) \
&& (dbgtext body) )
#define DEBUGADDC( dbgc_class, level, body ) \
(void)( ((level) <= MAX_DEBUG_LEVEL) && \
unlikely((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))) \
&& (dbgtext body) )
/* Print a separator to the debug log. */
#define DEBUGSEP(level)\
DEBUG((level),("===============================================================\n"))
/* The following definitions come from lib/debug.c */
/** Possible destinations for the debug log (in order of precedence -
* once set to DEBUG_FILE, it is not possible to reset to DEBUG_STDOUT
* for example. This makes it easy to override for debug to stderr on
* the command line, as the smb.conf cannot reset it back to
* file-based logging */
enum debug_logtype {DEBUG_DEFAULT_STDERR = 0, DEBUG_DEFAULT_STDOUT = 1, DEBUG_FILE = 2, DEBUG_STDOUT = 3, DEBUG_STDERR = 4, DEBUG_CALLBACK = 5};
struct debug_settings {
size_t max_log_size;
int syslog;
bool syslog_only;
bool timestamp_logs;
bool debug_prefix_timestamp;
bool debug_hires_timestamp;
bool debug_pid;
bool debug_uid;
bool debug_class;
};
void setup_logging(const char *prog_name, enum debug_logtype new_logtype);
void debug_close_dbf(void);
void gfree_debugsyms(void);
int debug_add_class(const char *classname);
int debug_lookup_classname(const char *classname);
bool debug_parse_levels(const char *params_str);
void debug_setup_talloc_log(void);
void debug_set_logfile(const char *name);
void debug_set_settings(struct debug_settings *settings);
bool reopen_logs_internal( void );
void force_check_log_size( void );
bool need_to_check_log_size( void );
void check_log_size( void );
void dbgflush( void );
bool dbghdrclass(int level, int cls, const char *location, const char *func);
bool dbghdr(int level, const char *location, const char *func);
bool debug_get_output_is_stderr(void);
bool debug_get_output_is_stdout(void);
void debug_schedule_reopen_logs(void);
char *debug_list_class_names_and_levels(void);
typedef void (*debug_callback_fn)(void *private_ptr, int level, const char *msg);
/**
Set a callback for all debug messages. Use in dlz_bind9 to push output to the bind logs
*/
void debug_set_callback(void *private_ptr, debug_callback_fn fn);
/**
log suspicious usage - print comments and backtrace
*/
_PUBLIC_ void log_suspicious_usage(const char *from, const char *info);
/**
print suspicious usage - print comments and backtrace
*/
_PUBLIC_ void print_suspicious_usage(const char* from, const char* info);
_PUBLIC_ uint32_t get_task_id(void);
_PUBLIC_ void log_task_id(void);
/* the debug operations structure - contains function pointers to
various debug implementations of each operation */
struct debug_ops {
/* function to log (using DEBUG) suspicious usage of data structure */
void (*log_suspicious_usage)(const char* from, const char* info);
/* function to log (using printf) suspicious usage of data structure.
* To be used in circumstances when using DEBUG would cause loop. */
void (*print_suspicious_usage)(const char* from, const char* info);
/* function to return process/thread id */
uint32_t (*get_task_id)(void);
/* function to log process/thread id */
void (*log_task_id)(int fd);
};
/**
register a set of debug handlers.
*/
_PUBLIC_ void register_debug_handlers(const char *name, struct debug_ops *ops);
#endif
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