1 files changed, 195 insertions, 0 deletions
diff --git a/include/haproxy/log.h b/include/haproxy/log.h
new file mode 100644
index 0000000..68b8207
--- /dev/null
+++ b/include/haproxy/log.h
@@ -0,0 +1,195 @@
+/*
+ * include/haproxy/log.h
+ * This file contains definitions of log-related functions.
+ *
+ * Copyright (C) 2000-2020 Willy Tarreau - w@1wt.eu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _HAPROXY_LOG_H
+#define _HAPROXY_LOG_H
+
+#include <syslog.h>
+
+#include <haproxy/api.h>
+#include <haproxy/log-t.h>
+#include <haproxy/pool-t.h>
+#include <haproxy/proxy-t.h>
+#include <haproxy/stream.h>
+
+extern struct pool_head *pool_head_requri;
+extern struct pool_head *pool_head_uniqueid;
+
+extern const char *log_levels[];
+extern char *log_format;
+extern char httpclient_log_format[];
+extern char default_tcp_log_format[];
+extern char default_http_log_format[];
+extern char clf_http_log_format[];
+extern char default_https_log_format[];
+
+extern char default_rfc5424_sd_log_format[];
+
+extern const char sess_term_cond[];
+extern const char sess_fin_state[];
+
+extern unsigned int dropped_logs;
+
+/* lof forward proxy list */
+extern struct proxy *cfg_log_forward;
+
+extern THREAD_LOCAL char *logline;
+extern THREAD_LOCAL char *logline_rfc5424;
+
+/* global syslog message counter */
+extern int cum_log_messages;
+
+/* syslog UDP message handler */
+void syslog_fd_handler(int fd);
+
+/* Initialize/Deinitialize log buffers used for syslog messages */
+int init_log_buffers(void);
+void deinit_log_buffers(void);
+
+/* build a log line for the session and an optional stream */
+int sess_build_logline(struct session *sess, struct stream *s, char *dst, size_t maxsize, struct list *list_format);
+
+/*
+ * send a log for the stream when we have enough info about it.
+ * Will not log if the frontend has no log defined.
+ */
+void strm_log(struct stream *s);
+void sess_log(struct session *sess);
+
+/* send a applicative log with custom list of loggers */
+void app_log(struct list *loggers, struct buffer *tag, int level, const char *format, ...)
+	__attribute__ ((format(printf, 4, 5)));
+
+/*
+ * add to the logformat linked list
+ */
+int add_to_logformat_list(char *start, char *end, int type, struct list *list_format, char **err);
+
+/*
+ * Parse the log_format string and fill a linked list.
+ * Variable name are preceded by % and composed by characters [a-zA-Z0-9]* : %varname
+ * You can set arguments using { } : %{many arguments}varname
+ */
+int parse_logformat_string(const char *str, struct proxy *curproxy, struct list *list_format, int options, int cap, char **err);
+
+int postresolve_logger_list(struct list *loggers, const char *section, const char *section_name);
+
+struct logger *dup_logger(struct logger *def);
+void free_logger(struct logger *logger);
+void deinit_log_target(struct log_target *target);
+
+/* Parse "log" keyword and update the linked list. */
+int parse_logger(char **args, struct list *loggers, int do_del, const char *file, int linenum, char **err);
+
+/*
+ * This function adds a header to the message and sends the syslog message
+ * using a printf format string
+ */
+void send_log(struct proxy *p, int level, const char *format, ...)
+	__attribute__ ((format(printf, 3, 4)));
+
+/*
+ * This function sends a syslog message to all loggers of a proxy,
+ * or to global loggers if the proxy is NULL.
+ * It also tries not to waste too much time computing the message header.
+ * It doesn't care about errors nor does it report them.
+ */
+
+void __send_log(struct list *loggers, struct buffer *tag, int level, char *message, size_t size, char *sd, size_t sd_size);
+
+/*
+ * returns log format for <fmt> or LOG_FORMAT_UNSPEC if not found.
+ */
+enum log_fmt get_log_format(const char *fmt);
+
+/*
+ * returns log level for <lev> or -1 if not found.
+ */
+int get_log_level(const char *lev);
+
+/*
+ * returns log facility for <fac> or -1 if not found.
+ */
+int get_log_facility(const char *fac);
+
+/*
+ * Write a string in the log string
+ * Take cares of quote options
+ *
+ * Return the address of the \0 character, or NULL on error
+ */
+char *lf_text_len(char *dst, const char *src, size_t len, size_t size, const struct logformat_node *node);
+
+/*
+ * Write a IP address to the log string
+ * +X option write in hexadecimal notation, most significant byte on the left
+ */
+char *lf_ip(char *dst, const struct sockaddr *sockaddr, size_t size, const struct logformat_node *node);
+
+/*
+ * Write a port to the log
+ * +X option write in hexadecimal notation, most significant byte on the left
+ */
+char *lf_port(char *dst, const struct sockaddr *sockaddr, size_t size, const struct logformat_node *node);
+
+
+/*
+ * Function to handle log header building (exported for sinks)
+ */
+char *update_log_hdr_rfc5424(const time_t time, suseconds_t frac);
+char *update_log_hdr(const time_t time);
+char * get_format_pid_sep1(int format, size_t *len);
+char * get_format_pid_sep2(int format, size_t *len);
+
+/*
+ * Builds a log line for the stream (must be valid).
+ */
+static inline int build_logline(struct stream *s, char *dst, size_t maxsize, struct list *list_format)
+{
+	return sess_build_logline(strm_sess(s), s, dst, maxsize, list_format);
+}
+
+struct ist *build_log_header(struct log_header hdr, size_t *nbelem);
+
+/*
+ * lookup log forward proxy by name
+ * Returns NULL if no proxy found.
+ */
+static inline struct proxy *log_forward_by_name(const char *name)
+{
+	struct proxy *px = cfg_log_forward;
+
+	while (px) {
+		if (strcmp(px->id, name) == 0)
+			return px;
+		px = px->next;
+	}
+	return NULL;
+}
+
+#endif /* _HAPROXY_LOG_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */