1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/*
* Copyright (c) 2021 David Lamparter, for NetDEF, Inc.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _FRR_ZLOG_5424_H
#define _FRR_ZLOG_5424_H
#include <sys/stat.h>
#include "typerb.h"
#include "zlog.h"
#include "zlog_targets.h"
#include "qobj.h"
struct thread;
struct thread_master;
enum zlog_5424_dst {
/* can be used to disable a target temporarily */
ZLOG_5424_DST_NONE = 0,
ZLOG_5424_DST_FD,
ZLOG_5424_DST_FILE,
ZLOG_5424_DST_FIFO,
ZLOG_5424_DST_UNIX,
#define ZLOG_5424_DST_LAST ZLOG_5424_DST_UNIX
};
enum zlog_5424_format {
ZLOG_FMT_5424 = 0,
ZLOG_FMT_3164,
ZLOG_FMT_LOCAL,
ZLOG_FMT_JOURNALD,
#define ZLOG_FMT_LAST ZLOG_FMT_JOURNALD
};
/* actual RCU'd logging backend */
struct zlt_5424;
struct zlog_cfg_5424 {
struct zlt_5424 *active;
pthread_mutex_t cfg_mtx;
/* general settings for all dsts */
int facility;
int prio_min;
bool kw_version;
bool kw_location;
bool kw_uid;
bool kw_ec;
bool kw_args;
uint32_t ts_flags;
enum zlog_5424_format fmt;
/* destination specifics */
enum zlog_5424_dst dst;
/* pre-opened FD. not the actual fd we log to */
int fd;
/* file, fifo, unix */
bool file_nocreate;
const char *filename;
mode_t file_mode;
/* -1 = no change */
uid_t file_uid;
gid_t file_gid;
/* remaining fields are internally used & updated by the 5424
* code - *not* config. don't set these.
*/
/* sockets only - read handler to reconnect on errors */
struct thread_master *master;
struct thread *t_reconnect;
unsigned int reconn_backoff, reconn_backoff_cur, reconn_backoff_max;
int sock_type;
struct sockaddr_storage sa;
socklen_t sa_len;
};
/* these don't do malloc/free to allow using a static global */
extern void zlog_5424_init(struct zlog_cfg_5424 *zcf);
/* keepopen = true => for shutdown, just zap the config, keep logging */
extern void zlog_5424_fini(struct zlog_cfg_5424 *zcf, bool keepopen);
/* apply metadata/config changes */
extern bool zlog_5424_apply_meta(struct zlog_cfg_5424 *zcf);
/* apply changes requiring (re-)opening the destination
*
* also does log cycling/rotate & applies _meta at the same time
*/
extern bool zlog_5424_apply_dst(struct zlog_cfg_5424 *zcf);
/* SIGHUP log rotation */
extern bool zlog_5424_rotate(struct zlog_cfg_5424 *zcf);
extern void zlog_5424_state(struct zlog_cfg_5424 *zcf, size_t *lost_msgs,
int *last_errno, bool *stale_errno,
struct timeval *err_ts);
/* this is the dynamically allocated "variant" */
PREDECL_RBTREE_UNIQ(targets);
struct zlog_cfg_5424_user {
struct targets_item targets_item;
char *name;
struct zlog_cfg_5424 cfg;
char *envvar;
/* non-const, always same as cfg.filename */
char *filename;
/* uid/gid strings to write back out in show config */
char *file_user;
char *file_group;
bool reconf_dst;
bool reconf_meta;
int unix_special;
QOBJ_FIELDS;
};
DECLARE_QOBJ_TYPE(zlog_cfg_5424_user);
extern void log_5424_cmd_init(void);
#endif /* _FRR_ZLOG_5424_H */
|
