libosmocore  1.4.1
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 
15 #define LOG_MAX_CTX 8
16 
17 #define LOG_MAX_FILTERS 8
18 
19 #ifndef DEBUG
20 #define DEBUG
21 #endif
22 
23 #ifdef DEBUG
24 
29 #define DEBUGP(ss, fmt, args...) LOGP(ss, LOGL_DEBUG, fmt, ##args)
30 #define DEBUGPC(ss, fmt, args...) LOGPC(ss, LOGL_DEBUG, fmt, ##args)
31 #else
32 #define DEBUGP(xss, fmt, args...)
33 #define DEBUGPC(ss, fmt, args...)
34 #endif
35 
36 
37 void osmo_vlogp(int subsys, int level, const char *file, int line,
38  int cont, const char *format, va_list ap);
39 
40 void logp(int subsys, const char *file, int line, int cont, const char *format, ...) OSMO_DEPRECATED("Use DEBUGP* macros instead");
41 
48 #define LOGP(ss, level, fmt, args...) \
49  LOGPSRC(ss, level, NULL, 0, fmt, ## args)
50 
57 #define LOGPC(ss, level, fmt, args...) \
58  do { \
59  if (log_check_level(ss, level)) \
60  logp2(ss, level, __FILE__, __LINE__, 1, fmt, ##args); \
61  } while(0)
62 
75 #define LOGPSRC(ss, level, caller_file, caller_line, fmt, args...) \
76  LOGPSRCC(ss, level, caller_file, caller_line, 0, fmt, ##args)
77 
91 #define LOGPSRCC(ss, level, caller_file, caller_line, cont, fmt, args...) \
92  do { \
93  if (log_check_level(ss, level)) {\
94  if (caller_file) \
95  logp2(ss, level, caller_file, caller_line, cont, fmt, ##args); \
96  else \
97  logp2(ss, level, __FILE__, __LINE__, cont, fmt, ##args); \
98  }\
99  } while(0)
100 
102 #define LOGL_DEBUG 1
103 #define LOGL_INFO 3
104 #define LOGL_NOTICE 5
105 #define LOGL_ERROR 7
106 #define LOGL_FATAL 8
108 /* logging subsystems defined by the library itself */
109 #define DLGLOBAL -1
110 #define DLLAPD -2
111 #define DLINP -3
112 #define DLMUX -4
113 #define DLMI -5
114 #define DLMIB -6
115 #define DLSMS -7
116 #define DLCTRL -8
117 #define DLGTP -9
118 #define DLSTATS -10
119 #define DLGSUP -11
120 #define DLOAP -12
121 #define DLSS7 -13
122 #define DLSCCP -14
123 #define DLSUA -15
124 #define DLM3UA -16
125 #define DLMGCP -17
126 #define DLJIBUF -18
127 #define DLRSPRO -19
128 #define OSMO_NUM_DLIB 19
130 /* Colors that can be used in log_info_cat.color */
131 #define OSMO_LOGCOLOR_NORMAL NULL
132 #define OSMO_LOGCOLOR_RED "\033[1;31m"
133 #define OSMO_LOGCOLOR_GREEN "\033[1;32m"
134 #define OSMO_LOGCOLOR_YELLOW "\033[1;33m"
135 #define OSMO_LOGCOLOR_BLUE "\033[1;34m"
136 #define OSMO_LOGCOLOR_PURPLE "\033[1;35m"
137 #define OSMO_LOGCOLOR_CYAN "\033[1;36m"
138 #define OSMO_LOGCOLOR_DARKRED "\033[31m"
139 #define OSMO_LOGCOLOR_DARKGREEN "\033[32m"
140 #define OSMO_LOGCOLOR_DARKYELLOW "\033[33m"
141 #define OSMO_LOGCOLOR_DARKBLUE "\033[34m"
142 #define OSMO_LOGCOLOR_DARKPURPLE "\033[35m"
143 #define OSMO_LOGCOLOR_DARKCYAN "\033[36m"
144 #define OSMO_LOGCOLOR_DARKGREY "\033[1;30m"
145 #define OSMO_LOGCOLOR_GREY "\033[37m"
146 #define OSMO_LOGCOLOR_BRIGHTWHITE "\033[1;37m"
147 #define OSMO_LOGCOLOR_END "\033[0;m"
148 
150 struct log_category {
151  uint8_t loglevel;
152  uint8_t enabled;
153 };
154 
156 struct log_info_cat {
157  const char *name;
158  const char *color;
159  const char *description;
160  uint8_t loglevel;
161  uint8_t enabled;
162 };
163 
165 struct log_context {
166  void *ctx[LOG_MAX_CTX+1];
167 };
168 
178 };
179 
191 };
192 
194 #define LOG_FILTER_ALL (1<<LOG_FLT_ALL)
195 
196 #define GPRS_CTX_NSVC LOG_CTX_GB_NSVC
197 
198 #define GPRS_CTX_BVC LOG_CTX_GB_BVC
199 
202 struct log_target;
203 
205 typedef int log_filter(const struct log_context *ctx,
206  struct log_target *target);
207 
208 struct log_info;
209 struct vty;
210 struct gsmtap_inst;
211 
212 typedef void log_print_filters(struct vty *vty,
213  const struct log_info *info,
214  const struct log_target *tgt);
215 
216 typedef void log_save_filters(struct vty *vty,
217  const struct log_info *info,
218  const struct log_target *tgt);
219 
221 struct log_info {
222  /* filter callback function */
224 
226  const struct log_info_cat *cat;
228  unsigned int num_cat;
230  unsigned int num_cat_user;
231 
236 };
237 
246 };
247 
253 };
254 
259 };
260 
262 struct log_target {
263  struct llist_head entry;
268  void *filter_data[LOG_MAX_FILTERS+1];
269 
272 
274  uint8_t loglevel;
276  unsigned int use_color:1;
278  unsigned int print_timestamp:1;
280  unsigned int print_filename:1;
282  unsigned int print_category:1;
284  unsigned int print_ext_timestamp:1;
285 
288 
289  union {
290  struct {
291  FILE *out;
292  const char *fname;
293  } tgt_file;
294 
295  struct {
296  int priority;
297  int facility;
298  } tgt_syslog;
299 
300  struct {
301  void *vty;
302  } tgt_vty;
303 
304  struct {
305  void *rb;
306  } tgt_rb;
307 
308  struct {
310  const char *ident;
311  const char *hostname;
312  } tgt_gsmtap;
313  };
314 
321  void (*output) (struct log_target *target, unsigned int level,
322  const char *string);
323 
336  void (*raw_output)(struct log_target *target, int subsys,
337  unsigned int level, const char *file, int line,
338  int cont, const char *format, va_list ap);
339 
340  /* Should the log level be printed? */
342  /* Should we print the subsys in hex like '<000b>'? */
344  /* Should we print the source file and line, and in which way? */
346  /* Where on a log line to put the source file info. */
348 };
349 
350 /* use the above macros */
351 void logp2(int subsys, unsigned int level, const char *file,
352  int line, int cont, const char *format, ...)
353  __attribute__ ((format (printf, 6, 7)));
354 int log_init(const struct log_info *inf, void *talloc_ctx);
355 void log_fini(void);
356 int log_check_level(int subsys, unsigned int level);
357 
358 /* context management */
359 void log_reset_context(void);
360 int log_set_context(uint8_t ctx, void *value);
361 
362 /* filter on the targets */
363 void log_set_all_filter(struct log_target *target, int);
364 
365 void log_set_use_color(struct log_target *target, int);
366 void log_set_print_extended_timestamp(struct log_target *target, int);
367 void log_set_print_timestamp(struct log_target *target, int);
368 void log_set_print_filename(struct log_target *target, int);
369 void log_set_print_filename2(struct log_target *target, enum log_filename_type lft);
370 void log_set_print_filename_pos(struct log_target *target, enum log_filename_pos pos);
371 void log_set_print_category(struct log_target *target, int);
372 void log_set_print_category_hex(struct log_target *target, int);
373 void log_set_print_level(struct log_target *target, int);
374 void log_set_log_level(struct log_target *target, int log_level);
375 void log_parse_category_mask(struct log_target *target, const char* mask);
376 const char* log_category_name(int subsys);
378 const char *log_level_str(unsigned int lvl) OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE;
379 int log_parse_category(const char *category);
380 void log_set_category_filter(struct log_target *target, int category,
381  int enable, int level);
382 
383 /* management of the targets */
384 struct log_target *log_target_create(void);
385 void log_target_destroy(struct log_target *target);
387 struct log_target *log_target_create_file(const char *fname);
388 struct log_target *log_target_create_syslog(const char *ident, int option,
389  int facility);
390 struct log_target *log_target_create_gsmtap(const char *host, uint16_t port,
391  const char *ident,
392  bool ofd_wq_mode,
393  bool add_sink);
394 int log_target_file_reopen(struct log_target *tgt);
395 int log_targets_reopen(void);
396 
397 void log_add_target(struct log_target *target);
398 void log_del_target(struct log_target *target);
399 
400 struct log_target *log_target_find(int type, const char *fname);
401 
402 void log_enable_multithread(void);
403 
404 void log_tgt_mutex_lock_impl(void);
405 void log_tgt_mutex_unlock_impl(void);
406 #define LOG_MTX_DEBUG 0
407 #if LOG_MTX_DEBUG
408  #include <pthread.h>
409  #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)
410  #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)
411 #else
412  #define log_tgt_mutex_lock() log_tgt_mutex_lock_impl()
413  #define log_tgt_mutex_unlock() log_tgt_mutex_unlock_impl()
414 #endif
415 
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:782
Definition: logging.h:257
Information regarding one logging category.
Definition: logging.h:156
int filter_map
Internal data for filtering.
Definition: logging.h:266
int log_parse_level(const char *lvl) OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE
Parse a human-readable log level into a numeric value.
Definition: logging.c:249
#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:267
const char * name
name of category
Definition: logging.h:157
VTY logging.
Definition: logging.h:240
struct osmo_gsm48_classmark __attribute__
Definition: conv_acc_generic.c:140
log_save_filters * save_fn
filter saving function
Definition: logging.h:233
Definition: logging.h:190
log_filename_type
Whether/how to log the source filename (and line number).
Definition: logging.h:249
bool print_level
Definition: logging.h:341
void * rb
Definition: logging.h:305
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:712
const char * fname
Definition: logging.h:292
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:614
void log_set_print_filename(struct log_target *target, int)
Use log_set_print_filename2() instead.
Definition: logging.c:739
Configuration of single log category / sub-system.
Definition: logging.h:150
void log_set_print_extended_timestamp(struct log_target *target, int)
Enable or disable printing of extended timestamps while logging.
Definition: logging.c:725
log_ctx_index
Indexes to indicate the object currently acted upon.
Definition: logging.h:171
Definition: logging.h:173
#define OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE
Definition: defs.h:48
Definition: logging.h:251
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:127
Definition: logging.h:186
uint8_t enabled
is this category enabled or not
Definition: logging.h:161
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:751
log_filter_index
Indexes to indicate objects that should be logged.
Definition: logging.h:183
Definition: logging.h:184
int log_set_context(uint8_t ctx, void *value)
Set the logging context.
Definition: logging.c:673
syslog based logging
Definition: logging.h:241
const char * ident
Definition: logging.h:310
Definition: logging.h:176
Definition: logging.h:187
General definitions that are meant to be included from header files.
log_target_type
Type of logging target.
Definition: logging.h:239
void log_target_destroy(struct log_target *target)
Unregister, close and delete a log target.
Definition: logging.c:955
#define DEBUGP(ss, fmt, args...)
Log a debug message through the Osmocom logging framework.
Definition: logging.h:29
void * vty
Definition: logging.h:301
#define LOG_MAX_FILTERS
Maximum number of logging filters.
Definition: logging.h:17
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:930
one gsmtap instance
Definition: gsmtap_util.h:27
uint8_t enabled
is logging enabled?
Definition: logging.h:152
enum log_filename_type print_filename2
Definition: logging.h:345
int facility
Definition: logging.h:297
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:282
void log_add_target(struct log_target *target)
Register a new log target with the logging core.
Definition: logging.c:643
int log_filter(const struct log_context *ctx, struct log_target *target)
Log filter function.
Definition: logging.h:205
osmo_strrb-backed logging
Definition: logging.h:244
Definition: logging.h:188
int priority
Definition: logging.h:296
void log_enable_multithread(void)
Enable multithread support (mutex) in libosmocore logging system.
Definition: logging.c:79
text file logging
Definition: logging.h:242
Definition: logging.h:250
bool print_category_hex
Definition: logging.h:343
void log_del_target(struct log_target *target)
Unregister a log target from the logging core.
Definition: logging.c:651
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:336
FILE * out
Definition: logging.h:291
enum log_filename_pos print_filename_pos
Definition: logging.h:347
void log_set_all_filter(struct log_target *target, int)
Enable the LOG_FLT_ALL log filter.
Definition: logging.c:691
stderr logging
Definition: logging.h:243
void log_save_filters(struct vty *vty, const struct log_info *info, const struct log_target *tgt)
Definition: logging.h:216
struct gsmtap_inst * gsmtap_inst
Definition: logging.h:309
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:212
unsigned int print_filename
DEPRECATED: use print_filename2 instead.
Definition: logging.h:280
(double) linked list header structure
Definition: linuxlist.h:45
void log_set_use_color(struct log_target *target, int)
Enable or disable the use of colored output.
Definition: logging.c:703
const char * color
color string for cateyory
Definition: logging.h:158
Definition: logging.h:185
void log_set_print_category(struct log_target *target, int)
Enable or disable printing of the category name.
Definition: logging.c:773
log_filter * filter_fn
Definition: logging.h:223
Definition: logging.h:174
int log_target_file_reopen(struct log_target *tgt)
close and re-open a log file (for log file rotation)
Definition: logging.c:981
Definition: logging.h:175
void int log_init(const struct log_info *inf, void *talloc_ctx)
Initialize the Osmocom logging core.
Definition: logging.c:1026
struct log_target * log_target_create_stderr(void)
Create the STDERR log target.
Definition: logging.c:879
const char * log_level_str(unsigned int lvl) OSMO_DEPRECATED_OUTSIDE_LIBOSMOCORE
convert a numeric log level into human-readable string
Definition: logging.c:258
struct log_category * categories
logging categories
Definition: logging.h:271
uint8_t loglevel
global log level
Definition: logging.h:274
void log_tgt_mutex_lock_impl(void)
Acquire the osmo_log_tgt_mutex.
Definition: logging.c:89
Definition: logging.h:252
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:813
void log_tgt_mutex_unlock_impl(void)
Release the osmo_log_tgt_mutex.
Definition: logging.c:105
GSMTAP network logging.
Definition: logging.h:245
void log_fini(void)
Definition: logging.c:1085
int log_check_level(int subsys, unsigned int level)
Check whether a log entry will be generated.
Definition: logging.c:1104
uint8_t loglevel
configured log-level
Definition: logging.h:151
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:762
Definition: logging.h:189
Definition: logging.h:177
struct log_target * log_target_create_file(const char *fname)
Create a new file-based log target.
Definition: logging.c:903
log_filename_pos
Where on a log line source file and line should be logged.
Definition: logging.h:256
Logging configuration, passed to log_init.
Definition: logging.h:221
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:290
unsigned int print_timestamp
should log messages be prefixed with a timestamp?
Definition: logging.h:278
Definition: logging.h:172
log_print_filters * print_fn
filter saving function
Definition: logging.h:235
unsigned int num_cat_user
total number of user categories (not library)
Definition: logging.h:230
const char * log_category_name(int subsys)
Definition: logging.c:363
Log context information, passed to filter.
Definition: logging.h:165
const struct log_info_cat * cat
per-category information
Definition: logging.h:226
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:276
unsigned int print_ext_timestamp
should log messages be prefixed with an extended timestamp?
Definition: logging.h:284
struct log_target * log_target_create(void)
Create a new log target skeleton.
Definition: logging.c:838
void log_set_print_level(struct log_target *target, int)
Enable or disable printing of the log level name.
Definition: logging.c:793
const char * hostname
Definition: logging.h:311
structure representing a logging target
Definition: logging.h:262
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:579
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:802
void log_reset_context(void)
Reset (clear) the logging context.
Definition: logging.c:657
#define LOG_MAX_CTX
Maximum number of logging contexts.
Definition: logging.h:15
uint8_t loglevel
currently selected log-level
Definition: logging.h:160
unsigned int num_cat
total number of categories
Definition: logging.h:228
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:631
int log_targets_reopen(void)
close and re-open all log files (for log file rotation)
Definition: logging.c:996
Definition: logging.h:258
const char * description
description text
Definition: logging.h:159