1 files changed, 141 insertions, 0 deletions
diff --git a/lib/zlog_5424.h b/lib/zlog_5424.h
new file mode 100644
index 0000000..06525c0
--- /dev/null
+++ b/lib/zlog_5424.h
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (c) 2021  David Lamparter, for NetDEF, Inc.
+ */
+
+#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 event;
+struct event_loop;
+
+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 event_loop *master;
+	struct event *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 */