libosmocore  1.5.1.129-442f
Osmocom core library
logging.h
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1 #pragma once
2 
7 #include <stdio.h>
8 #include <stdint.h>
9 #include <stdarg.h>
10 #include <stdbool.h>
11 #include <osmocom/core/defs.h>
12 #include <osmocom/core/linuxlist.h>
13 
14 #ifndef DEBUG
15 #define DEBUG
16 #endif
17 
18 #ifdef DEBUG
19 
24 #define DEBUGP(ss, fmt, args...) LOGP(ss, LOGL_DEBUG, fmt, ##args)
25 #define DEBUGPC(ss, fmt, args...) LOGPC(ss, LOGL_DEBUG, fmt, ##args)
26 #else
27 #define DEBUGP(xss, fmt, args...)
28 #define DEBUGPC(ss, fmt, args...)
29 #endif
30 
31 
32 void osmo_vlogp(int subsys, int level, const char *file, int line,
33  int cont, const char *format, va_list ap);
34 
35 void logp(int subsys, const char *file, int line, int cont, const char *format, ...) OSMO_DEPRECATED("Use DEBUGP* macros instead");
36 
43 #define LOGP(ss, level, fmt, args...) \
44  LOGPSRC(ss, level, NULL, 0, fmt, ## args)
45 
52 #define LOGPC(ss, level, fmt, args...) \
53  do { \
54  if (log_check_level(ss, level)) \
55  logp2(ss, level, __FILE__, __LINE__, 1, fmt, ##args); \
56  } while(0)
57 
70 #define LOGPSRC(ss, level, caller_file, caller_line, fmt, args...) \
71  LOGPSRCC(ss, level, caller_file, caller_line, 0, fmt, ##args)
72 
86 #define LOGPSRCC(ss, level, caller_file, caller_line, cont, fmt, args...) \
87  do { \
88  if (log_check_level(ss, level)) {\
89  if (caller_file) \
90  logp2(ss, level, caller_file, caller_line, cont, fmt, ##args); \
91  else \
92  logp2(ss, level, __FILE__, __LINE__, cont, fmt, ##args); \
93  }\
94  } while(0)
95 
97 #define LOGL_DEBUG 1
98 #define LOGL_INFO 3
99 #define LOGL_NOTICE 5
100 #define LOGL_ERROR 7
101 #define LOGL_FATAL 8
103 /* logging subsystems defined by the library itself */
104 #define DLGLOBAL -1
105 #define DLLAPD -2
106 #define DLINP -3
107 #define DLMUX -4
108 #define DLMI -5
109 #define DLMIB -6
110 #define DLSMS -7
111 #define DLCTRL -8
112 #define DLGTP -9
113 #define DLSTATS -10
114 #define DLGSUP -11
115 #define DLOAP -12
116 #define DLSS7 -13
117 #define DLSCCP -14
118 #define DLSUA -15
119 #define DLM3UA -16
120 #define DLMGCP -17
121 #define DLJIBUF -18
122 #define DLRSPRO -19
123 #define DLNS -20
124 #define DLBSSGP -21
125 #define DLNSDATA -22
126 #define DLNSSIGNAL -23
127 #define OSMO_NUM_DLIB 23
129 /* Colors that can be used in log_info_cat.color */
130 #define OSMO_LOGCOLOR_NORMAL NULL
131 #define OSMO_LOGCOLOR_RED "\033[1;31m"
132 #define OSMO_LOGCOLOR_GREEN "\033[1;32m"
133 #define OSMO_LOGCOLOR_YELLOW "\033[1;33m"
134 #define OSMO_LOGCOLOR_BLUE "\033[1;34m"
135 #define OSMO_LOGCOLOR_PURPLE "\033[1;35m"
136 #define OSMO_LOGCOLOR_CYAN "\033[1;36m"
137 #define OSMO_LOGCOLOR_DARKRED "\033[31m"
138 #define OSMO_LOGCOLOR_DARKGREEN "\033[32m"
139 #define OSMO_LOGCOLOR_DARKYELLOW "\033[33m"
140 #define OSMO_LOGCOLOR_DARKBLUE "\033[34m"
141 #define OSMO_LOGCOLOR_DARKPURPLE "\033[35m"
142 #define OSMO_LOGCOLOR_DARKCYAN "\033[36m"
143 #define OSMO_LOGCOLOR_DARKGREY "\033[1;30m"
144 #define OSMO_LOGCOLOR_GREY "\033[37m"
145 #define OSMO_LOGCOLOR_BRIGHTWHITE "\033[1;37m"
146 #define OSMO_LOGCOLOR_END "\033[0;m"
147 
149 struct log_category {
150  uint8_t loglevel;
151  uint8_t enabled;
152 };
153 
155 struct log_info_cat {
156  const char *name;
157  const char *color;
158  const char *description;
159  uint8_t loglevel;
160  uint8_t enabled;
161 };
162 
173 };
174 
187 };
188 
190 #define LOG_MAX_CTX _LOG_CTX_COUNT
191 
192 #define LOG_MAX_FILTERS _LOG_FLT_COUNT
193 
195 struct log_context {
196  void *ctx[LOG_MAX_CTX+1];
197 };
198 
200 #define LOG_FILTER_ALL (1<<LOG_FLT_ALL)
201 
202 #define GPRS_CTX_NSVC LOG_CTX_GB_NSVC
203 
204 #define GPRS_CTX_BVC LOG_CTX_GB_BVC
205 
208 struct log_target;
209 
211 typedef int log_filter(const struct log_context *ctx,
212  struct log_target *target);
213 
214 struct log_info;
215 struct vty;
216 struct gsmtap_inst;
217 
218 typedef void log_print_filters(struct vty *vty,
219  const struct log_info *info,
220  const struct log_target *tgt);
221 
222 typedef void log_save_filters(struct vty *vty,
223  const struct log_info *info,
224  const struct log_target *tgt);
225 
227 struct log_info {
228  /* filter callback function */
230 
232  const struct log_info_cat *cat;
234  unsigned int num_cat;
236  unsigned int num_cat_user;
237 
242 };
243 
253 };
254 
260 };
261 
266 };
267 
269 struct log_target {
270  struct llist_head entry;
275  void *filter_data[LOG_MAX_FILTERS+1];
276 
279 
281  uint8_t loglevel;
283  unsigned int use_color:1;
285  unsigned int print_timestamp:1;
287  unsigned int print_tid:1;
289  unsigned int print_filename:1;
291  unsigned int print_category:1;
293  unsigned int print_ext_timestamp:1;
294 
297 
298  union {
299  struct {
300  FILE *out;
301  const char *fname;
302  } tgt_file;
303 
304  struct {
305  int priority;
306  int facility;
307  } tgt_syslog;
308 
309  struct {
310  void *vty;
311  } tgt_vty;
312 
313  struct {
314  void *rb;
315  } tgt_rb;
316 
317  struct {
319  const char *ident;
320  const char *hostname;
321  } tgt_gsmtap;
322 
323  struct {
324  bool raw;
325  } sd_journal;
326  };
327 
334  void (*output) (struct log_target *target, unsigned int level,
335  const char *string);
336 
349  void (*raw_output)(struct log_target *target, int subsys,
350  unsigned int level, const char *file, int line,
351  int cont, const char *format, va_list ap);
352 
353  /* Should the log level be printed? */
355  /* Should we print the subsys in hex like '<000b>'? */
357  /* Should we print the source file and line, and in which way? */
359  /* Where on a log line to put the source file info. */
361 };
362 
363 /* use the above macros */
364 void logp2(int subsys, unsigned int level, const char *file,
365  int line, int cont, const char *format, ...)
366  __attribute__ ((format (printf, 6, 7)));
367 int log_init(const struct log_info *inf, void *talloc_ctx);
368 void log_fini(void);
369 int log_check_level(int subsys, unsigned int level);
370 
371 /* context management */
372 void log_reset_context(void);
373 int log_set_context(uint8_t ctx, void *value);
374 
375 /* filter on the targets */
376 void log_set_all_filter(struct log_target *target, int);
377 
378 void log_set_use_color(struct log_target *target, int);
379 void log_set_print_extended_timestamp(struct log_target *target, int);
380 void log_set_print_timestamp(struct log_target *target, int);
381 void log_set_print_tid(struct log_target *target, int);
382 void log_set_print_filename(struct log_target *target, int) OSMO_DEPRECATED("Use log_set_print_filename2() instead");
383 void log_set_print_filename2(struct log_target *target, enum log_filename_type lft);
384 void log_set_print_filename_pos(struct log_target *target, enum log_filename_pos pos);
385 void log_set_print_category(struct log_target *target, int);
386 void log_set_print_category_hex(struct log_target *target, int);
387 void log_set_print_level(struct log_target *target, int);
388 void log_set_log_level(struct log_target *target, int log_level);
389 void log_parse_category_mask(struct log_target *target, const char* mask);
390 const char* log_category_name(int subsys);
392 const char *log_level_str(unsigned int lvl) OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE;
393 int log_parse_category(const char *category);
394 void log_set_category_filter(struct log_target *target, int category,
395  int enable, int level);
396 
397 /* management of the targets */
398 struct log_target *log_target_create(void);
399 void log_target_destroy(struct log_target *target);
401 struct log_target *log_target_create_file(const char *fname);
402 struct log_target *log_target_create_syslog(const char *ident, int option,
403  int facility);
404 struct log_target *log_target_create_gsmtap(const char *host, uint16_t port,
405  const char *ident,
406  bool ofd_wq_mode,
407  bool add_sink);
409 void log_target_systemd_set_raw(struct log_target *target, bool raw);
410 int log_target_file_reopen(struct log_target *tgt);
411 int log_targets_reopen(void);
412 
413 void log_add_target(struct log_target *target);
414 void log_del_target(struct log_target *target);
415 
416 struct log_target *log_target_find(int type, const char *fname);
417 
418 void log_enable_multithread(void);
419 
420 void log_tgt_mutex_lock_impl(void);
421 void log_tgt_mutex_unlock_impl(void);
422 #define LOG_MTX_DEBUG 0
423 #if LOG_MTX_DEBUG
424  #include <pthread.h>
425  #define log_tgt_mutex_lock() do { fprintf(stderr, "[%lu] %s:%d [%s] lock\n", pthread_self(), __FILE__, __LINE__, __func__); log_tgt_mutex_lock_impl(); } while (0)
426  #define log_tgt_mutex_unlock() do { fprintf(stderr, "[%lu] %s:%d [%s] unlock\n", pthread_self(), __FILE__, __LINE__, __func__); log_tgt_mutex_unlock_impl(); } while (0)
427 #else
428  #define log_tgt_mutex_lock() log_tgt_mutex_lock_impl()
429  #define log_tgt_mutex_unlock() log_tgt_mutex_unlock_impl()
430 #endif
431 
void log_set_print_category_hex(struct log_target *target, int)
Enable or disable printing of the category number in hex (&#39;<000b>&#39;).
Definition: logging.c:865
Definition: logging.h:264
Information regarding one logging category.
Definition: logging.h:155
int filter_map
Internal data for filtering.
Definition: logging.h:273
int log_parse_level(const char *lvl) OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE
Parse a human-readable log level into a numeric value.
Definition: logging.c:313
#define OSMO_DEPRECATED(text)
Set the deprecated attribute with a message.
Definition: defs.h:41
int log_parse_category(const char *category)
parse a human-readable log category into numeric form
Definition: logging.c:331
const char * name
name of category
Definition: logging.h:156
VTY logging.
Definition: logging.h:246
struct gsm48_classmark3 __attribute__
fls64 - find last set bit in a 64-bit word : the word to search
Definition: log2.h:61
log_save_filters * save_fn
filter saving function
Definition: logging.h:239
Definition: logging.h:186
log_filename_type
Whether/how to log the source filename (and line number).
Definition: logging.h:256
void log_set_print_tid(struct log_target *target, int)
Enable or disable printing of timestamps while logging.
Definition: logging.c:808
bool print_level
Definition: logging.h:354
void * rb
Definition: logging.h:314
char subsys[16]
logging sub-system
Definition: gsmtap.h:129
void log_set_print_timestamp(struct log_target *target, int)
Enable or disable printing of timestamps while logging.
Definition: logging.c:786
const char * fname
Definition: logging.h:301
void logp(int subsys, const char *file, int line, int cont, const char *format,...) OSMO_DEPRECATED("Use DEBUGP* macros instead")
logging function used by DEBUGP() macro
Definition: logging.c:686
void log_set_print_filename(struct log_target *target, int) OSMO_DEPRECATED("Use log_set_print_filename2() instead")
Use log_set_print_filename2() instead.
Definition: logging.c:822
Configuration of single log category / sub-system.
Definition: logging.h:149
void log_set_print_extended_timestamp(struct log_target *target, int)
Enable or disable printing of extended timestamps while logging.
Definition: logging.c:799
log_ctx_index
Indexes to indicate the object currently acted upon.
Definition: logging.h:165
Definition: logging.h:167
#define OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE
Definition: defs.h:48
Definition: logging.h:258
struct log_target * log_target_create_gsmtap(const char *host, uint16_t port, const char *ident, bool ofd_wq_mode, bool add_sink)
Create a new logging target for GSMTAP logging.
Definition: logging_gsmtap.c:134
Definition: logging.h:181
uint8_t enabled
is this category enabled or not
Definition: logging.h:160
void log_set_print_filename2(struct log_target *target, enum log_filename_type lft)
Enable or disable printing of the filename while logging.
Definition: logging.c:834
log_filter_index
Indexes to indicate objects that should be logged.
Definition: logging.h:178
Definition: logging.h:179
int log_set_context(uint8_t ctx, void *value)
Set the logging context.
Definition: logging.c:747
syslog based logging
Definition: logging.h:247
const char * ident
Definition: logging.h:319
Definition: logging.h:170
Definition: logging.h:171
Definition: logging.h:182
General definitions that are meant to be included from header files.
bool raw
Definition: logging.h:324
log_target_type
Type of logging target.
Definition: logging.h:245
void log_target_destroy(struct log_target *target)
Unregister, close and delete a log target.
Definition: logging.c:1041
#define DEBUGP(ss, fmt, args...)
Log a debug message through the Osmocom logging framework.
Definition: logging.h:24
void * vty
Definition: logging.h:310
#define LOG_MAX_FILTERS
Maximum number of logging filters.
Definition: logging.h:192
write Write running configuration to or terminal n Write configuration to the file(same as write file)\n") ALIAS(config_write_file
struct log_target * log_target_find(int type, const char *fname)
Find a registered log target.
Definition: logging.c:1016
one gsmtap instance
Definition: gsmtap_util.h:27
uint8_t enabled
is logging enabled?
Definition: logging.h:151
void log_target_systemd_set_raw(struct log_target *target, bool raw)
Change meta information handling of an existing logging target.
Definition: logging_systemd.c:109
enum log_filename_type print_filename2
Definition: logging.h:358
int facility
Definition: logging.h:306
uint8_t level
logging level
Definition: gsmtap.h:126
unsigned int print_category
should log messages be prefixed with a category name?
Definition: logging.h:291
void log_add_target(struct log_target *target)
Register a new log target with the logging core.
Definition: logging.c:717
int log_filter(const struct log_context *ctx, struct log_target *target)
Log filter function.
Definition: logging.h:211
osmo_strrb-backed logging
Definition: logging.h:250
Definition: logging.h:183
int priority
Definition: logging.h:305
void log_enable_multithread(void)
Enable multithread support (mutex) in libosmocore logging system.
Definition: logging.c:101
text file logging
Definition: logging.h:248
Definition: logging.h:257
bool print_category_hex
Definition: logging.h:356
void log_del_target(struct log_target *target)
Unregister a log target from the logging core.
Definition: logging.c:725
void(* raw_output)(struct log_target *target, int subsys, unsigned int level, const char *file, int line, int cont, const char *format, va_list ap)
alternative call-back function to which the logging framework passes the unfortmatted input arguments...
Definition: logging.h:349
FILE * out
Definition: logging.h:300
enum log_filename_pos print_filename_pos
Definition: logging.h:360
Definition: logging.h:185
void log_set_all_filter(struct log_target *target, int)
Enable the LOG_FLT_ALL log filter.
Definition: logging.c:765
stderr logging
Definition: logging.h:249
void log_save_filters(struct vty *vty, const struct log_info *info, const struct log_target *tgt)
Definition: logging.h:222
unsigned int print_tid
should log messages be prefixed with the logger Thread ID?
Definition: logging.h:287
struct gsmtap_inst * gsmtap_inst
Definition: logging.h:318
Simple doubly linked list implementation.
void log_print_filters(struct vty *vty, const struct log_info *info, const struct log_target *tgt)
Definition: logging.h:218
unsigned int print_filename
DEPRECATED: use print_filename2 instead.
Definition: logging.h:289
(double) linked list header structure
Definition: linuxlist.h:46
void log_set_use_color(struct log_target *target, int)
Enable or disable the use of colored output.
Definition: logging.c:777
const char * color
color string for cateyory
Definition: logging.h:157
struct log_target * log_target_create_systemd(bool raw)
Create a new logging target for systemd journal logging.
Definition: logging_systemd.c:90
Definition: logging.h:180
void log_set_print_category(struct log_target *target, int)
Enable or disable printing of the category name.
Definition: logging.c:856
log_filter * filter_fn
Definition: logging.h:229
Definition: logging.h:168
int log_target_file_reopen(struct log_target *tgt)
close and re-open a log file (for log file rotation)
Definition: logging.c:1072
Definition: logging.h:169
void int log_init(const struct log_info *inf, void *talloc_ctx)
Initialize the Osmocom logging core.
Definition: logging.c:1117
struct log_target * log_target_create_stderr(void)
Create the STDERR log target.
Definition: logging.c:963
const char * log_level_str(unsigned int lvl) OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE
convert a numeric log level into human-readable string
Definition: logging.c:322
struct log_category * categories
logging categories
Definition: logging.h:278
uint8_t loglevel
global log level
Definition: logging.h:281
void log_tgt_mutex_lock_impl(void)
Acquire the osmo_log_tgt_mutex.
Definition: logging.c:111
Definition: logging.h:259
void log_set_category_filter(struct log_target *target, int category, int enable, int level)
Set a category filter on a given log target.
Definition: logging.c:896
void log_tgt_mutex_unlock_impl(void)
Release the osmo_log_tgt_mutex.
Definition: logging.c:127
GSMTAP network logging.
Definition: logging.h:251
void log_fini(void)
Definition: logging.c:1176
int log_check_level(int subsys, unsigned int level)
Check whether a log entry will be generated.
Definition: logging.c:1195
uint8_t loglevel
configured log-level
Definition: logging.h:150
void log_set_print_filename_pos(struct log_target *target, enum log_filename_pos pos)
Set the position where on a log line the source file info should be logged.
Definition: logging.c:845
Definition: logging.h:184
Definition: logging.h:172
struct log_target * log_target_create_file(const char *fname)
Create a new file-based log target.
Definition: logging.c:987
log_filename_pos
Where on a log line source file and line should be logged.
Definition: logging.h:263
Logging configuration, passed to log_init.
Definition: logging.h:227
uint8_t type
see GSMTAP_TYPE_*
Definition: gsmtap.h:122
void log_parse_category_mask(struct log_target *target, const char *mask)
parse the log category mask
Definition: logging.c:354
unsigned int print_timestamp
should log messages be prefixed with a timestamp?
Definition: logging.h:285
Definition: logging.h:166
log_print_filters * print_fn
filter saving function
Definition: logging.h:241
unsigned int num_cat_user
total number of user categories (not library)
Definition: logging.h:236
const char * log_category_name(int subsys)
Definition: logging.c:427
Log context information, passed to filter.
Definition: logging.h:195
const struct log_info_cat * cat
per-category information
Definition: logging.h:232
struct log_target * log_target_create_syslog(const char *ident, int option, int facility)
Create a new logging target for syslog logging.
Definition: logging_syslog.c:73
unsigned int use_color
should color be used when printing log messages?
Definition: logging.h:283
unsigned int print_ext_timestamp
should log messages be prefixed with an extended timestamp?
Definition: logging.h:293
struct log_target * log_target_create(void)
Create a new log target skeleton.
Definition: logging.c:921
void log_set_print_level(struct log_target *target, int)
Enable or disable printing of the log level name.
Definition: logging.c:876
const char * hostname
Definition: logging.h:320
structure representing a logging target
Definition: logging.h:269
void osmo_vlogp(int subsys, int level, const char *file, int line, int cont, const char *format, va_list ap)
vararg version of logging function
Definition: logging.c:651
void log_set_log_level(struct log_target *target, int log_level)
Set the global log level for a given log target.
Definition: logging.c:885
void log_reset_context(void)
Reset (clear) the logging context.
Definition: logging.c:731
#define LOG_MAX_CTX
Maximum number of logging contexts.
Definition: logging.h:190
systemd journal logging
Definition: logging.h:252
uint8_t loglevel
currently selected log-level
Definition: logging.h:159
unsigned int num_cat
total number of categories
Definition: logging.h:234
void logp2(int subsys, unsigned int level, const char *file, int line, int cont, const char *format,...) __attribute__((format(printf
logging function used by LOGP() macro
Definition: logging.c:703
int log_targets_reopen(void)
close and re-open all log files (for log file rotation)
Definition: logging.c:1087
Definition: logging.h:265
const char * description
description text
Definition: logging.h:158