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142 lines
2.9 KiB
C
142 lines
2.9 KiB
C
// SPDX-License-Identifier: ISC
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/*
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* Copyright (c) 2021 David Lamparter, for NetDEF, Inc.
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*/
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#ifndef _FRR_ZLOG_5424_H
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#define _FRR_ZLOG_5424_H
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#include <sys/stat.h>
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#include "typerb.h"
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#include "zlog.h"
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#include "zlog_targets.h"
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#include "qobj.h"
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struct event;
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struct event_loop;
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enum zlog_5424_dst {
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/* can be used to disable a target temporarily */
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ZLOG_5424_DST_NONE = 0,
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ZLOG_5424_DST_FD,
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ZLOG_5424_DST_FILE,
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ZLOG_5424_DST_FIFO,
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ZLOG_5424_DST_UNIX,
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#define ZLOG_5424_DST_LAST ZLOG_5424_DST_UNIX
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};
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enum zlog_5424_format {
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ZLOG_FMT_5424 = 0,
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ZLOG_FMT_3164,
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ZLOG_FMT_LOCAL,
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ZLOG_FMT_JOURNALD,
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#define ZLOG_FMT_LAST ZLOG_FMT_JOURNALD
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};
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/* actual RCU'd logging backend */
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struct zlt_5424;
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struct zlog_cfg_5424 {
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struct zlt_5424 *active;
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pthread_mutex_t cfg_mtx;
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/* general settings for all dsts */
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int facility;
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int prio_min;
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bool kw_version;
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bool kw_location;
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bool kw_uid;
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bool kw_ec;
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bool kw_args;
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uint32_t ts_flags;
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enum zlog_5424_format fmt;
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/* destination specifics */
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enum zlog_5424_dst dst;
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/* pre-opened FD. not the actual fd we log to */
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int fd;
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/* file, fifo, unix */
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bool file_nocreate;
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const char *filename;
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mode_t file_mode;
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/* -1 = no change */
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uid_t file_uid;
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gid_t file_gid;
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/* remaining fields are internally used & updated by the 5424
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* code - *not* config. don't set these.
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*/
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/* sockets only - read handler to reconnect on errors */
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struct event_loop *master;
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struct event *t_reconnect;
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unsigned int reconn_backoff, reconn_backoff_cur, reconn_backoff_max;
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int sock_type;
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struct sockaddr_storage sa;
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socklen_t sa_len;
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};
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/* these don't do malloc/free to allow using a static global */
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extern void zlog_5424_init(struct zlog_cfg_5424 *zcf);
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/* keepopen = true => for shutdown, just zap the config, keep logging */
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extern void zlog_5424_fini(struct zlog_cfg_5424 *zcf, bool keepopen);
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/* apply metadata/config changes */
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extern bool zlog_5424_apply_meta(struct zlog_cfg_5424 *zcf);
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/* apply changes requiring (re-)opening the destination
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*
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* also does log cycling/rotate & applies _meta at the same time
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*/
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extern bool zlog_5424_apply_dst(struct zlog_cfg_5424 *zcf);
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/* SIGHUP log rotation */
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extern bool zlog_5424_rotate(struct zlog_cfg_5424 *zcf);
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extern void zlog_5424_state(struct zlog_cfg_5424 *zcf, size_t *lost_msgs,
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int *last_errno, bool *stale_errno,
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struct timeval *err_ts);
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/* this is the dynamically allocated "variant" */
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PREDECL_RBTREE_UNIQ(targets);
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struct zlog_cfg_5424_user {
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struct targets_item targets_item;
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char *name;
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struct zlog_cfg_5424 cfg;
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char *envvar;
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/* non-const, always same as cfg.filename */
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char *filename;
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/* uid/gid strings to write back out in show config */
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char *file_user;
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char *file_group;
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bool reconf_dst;
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bool reconf_meta;
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int unix_special;
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QOBJ_FIELDS;
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};
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DECLARE_QOBJ_TYPE(zlog_cfg_5424_user);
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extern void log_5424_cmd_init(void);
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#endif /* _FRR_ZLOG_5424_H */
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