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#ifndef FR_PARSER_H
#define FR_PARSER_H
/*
* parser.h Structures and prototypes for parsing
* Version: $Id$
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* Copyright 2013 Alan DeKok <aland@freeradius.org>
*/
RCSIDH(parser_h, "$Id$")
#include <freeradius-devel/map.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef RADIUSD_H
/*
* Also defined in radiusd.h for radius_evalute_cond()
*/
typedef struct fr_cond_t fr_cond_t;
#endif
typedef enum {
COND_NONE = 0,
COND_AND = '&',
COND_OR = '|'
} fr_cond_op_t;
typedef enum {
COND_TYPE_INVALID = 0,
COND_TYPE_TRUE,
COND_TYPE_FALSE,
COND_TYPE_EXISTS,
COND_TYPE_MAP,
COND_TYPE_CHILD
} fr_cond_type_t;
typedef enum {
PASS2_FIXUP_NONE = 0,
PASS2_FIXUP_ATTR,
PASS2_FIXUP_TYPE,
PASS2_PAIRCOMPARE
} fr_cond_pass2_t;
/*
* Allow for the following structures:
*
* FOO no OP, RHS is NULL
* FOO OP BAR
* (COND) no LHS/RHS, child is COND, child OP is true
* (!(COND)) no LHS/RHS, child is COND, child OP is NOT
* (COND1 OP COND2) no LHS/RHS, next is COND2, next OP is OP
*/
struct fr_cond_t {
fr_cond_type_t type;
CONF_ITEM const *ci;
union {
vp_map_t *map;
vp_tmpl_t *vpt;
fr_cond_t *child;
} data;
bool negate;
fr_cond_pass2_t pass2_fixup;
DICT_ATTR const *cast;
fr_cond_op_t next_op;
fr_cond_t *next;
};
/*
* One pass over the conditions means that all references must
* exist at parse time.
*
* Two pass means "soft fail", that some invalid references are
* left for pass 2.
*/
#define FR_COND_ONE_PASS (0)
#define FR_COND_TWO_PASS (1)
ssize_t fr_condition_tokenize(TALLOC_CTX *ctx, CONF_ITEM *ci, char const *start, fr_cond_t **head, char const **error, int flag);
size_t fr_cond_sprint(char *buffer, size_t bufsize, fr_cond_t const *c);
bool fr_condition_walk(fr_cond_t *head, bool (*callback)(void *, fr_cond_t *), void *ctx);
#ifdef __cplusplus
}
#endif
#endif /* FR_PARSER_H */
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