include/common/cfgparse.h

/*
  include/common/cfgparse.h
  Configuration parsing functions.

  Copyright (C) 2000-2008 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 _COMMON_CFGPARSE_H
#define _COMMON_CFGPARSE_H

#include <common/compat.h>
#include <common/config.h>
#include <common/mini-clist.h>

#include <types/proxy.h>

/* configuration sections */
#define CFG_NONE	0
#define CFG_GLOBAL	1
#define CFG_LISTEN	2

/* list of overlapping ACL rules that we can detect */
enum {
	CFG_ACL_TCP = 1,
	CFG_ACL_BLOCK = 2,
	CFG_ACL_REDIR = 4,
	CFG_ACL_BACKEND = 8,
};

struct cfg_keyword {
	int section;                            /* section type for this keyword */
	const char *kw;                         /* the keyword itself */
	int (*parse)(                           /* 0=OK, <0=Alert, >0=Warning */
		     char **args,               /* command line and arguments */
		     int section_type,          /* current section CFG_{GLOBAL|LISTEN} */
		     struct proxy *curpx,       /* current proxy (NULL in GLOBAL) */
		     struct proxy *defpx,       /* default proxy (NULL in GLOBAL) */
		     char *err,                 /* error message buffer (do not add '\n') */
		     int errlen);               /* error buffer size, '\0' included */
};

/* A keyword list. It is a NULL-terminated array of keywords. It embeds a
 * struct list in order to be linked to other lists, allowing it to easily
 * be declared where it is needed, and linked without duplicating data nor
 * allocating memory.
 */
struct cfg_kw_list {
	struct list list;
	struct cfg_keyword kw[VAR_ARRAY];
};


extern int cfg_maxpconn;
extern int cfg_maxconn;
extern unsigned int acl_seen;	/* CFG_ACL_* for current proxy being parsed */

int cfg_parse_global(const char *file, int linenum, char **args, int inv);
int cfg_parse_listen(const char *file, int linenum, char **args, int inv);
int readcfgfile(const char *file);
void cfg_register_keywords(struct cfg_kw_list *kwl);
void cfg_unregister_keywords(struct cfg_kw_list *kwl);

#endif /* _COMMON_CFGPARSE_H */

/*
 * Local variables:
 *  c-indent-level: 8
 *  c-basic-offset: 8
 * End:
 */