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a65b343eee
This patch just renames functions, types and enums. No code was changed.
A significant number of files were touched, especially the ACL arrays,
so it is likely that some external patches will not apply anymore.
One important thing is that we had to split ACL_PAT_* into two groups :
- ACL_TEST_{PASS|MISS|FAIL}
- PAT_{MATCH|UNMATCH}
A future patch will enforce enums on all these places to avoid confusion.
137 lines
5.9 KiB
C
137 lines
5.9 KiB
C
/*
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* include/proto/pattern.h
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* This file provides structures and types for pattern matching.
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*
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* Copyright (C) 2000-2013 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_PATTERN_H
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#define _PROTO_PATTERN_H
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/* parse the <text> with <expr> compliant parser. <pattern> is a context for
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* the current parsed acl. It must initialized at NULL:
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*
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* struct pattern *pattern = NULL
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* pattern_register(..., &pattern, ...);
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*
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* patflag are a lot of 'PAT_F_*' flags pattern compatible. see
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* <types/acl.h>.
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*
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* The function returns 1 if the processing is ok, return -1 if the parser
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* fails, with <err> message filled. It returns -2 in "out of memory"
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* error case.
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*/
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int pattern_register(struct pattern_expr *expr, char *text, struct sample_storage *smp, struct pattern **pattern, int patflags, char **err);
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/* This function executes a pattern match on a sample. It applies pattern <expr>
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* to sample <smp>. If <sample> is not NULL, a pointer to an optional sample
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* associated to the matching patterned will be put there. The function returns
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* PAT_MATCH or PAT_NOMATCH.
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*/
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inline int pattern_exec_match(struct pattern_expr *expr, struct sample *smp, struct sample_storage **sample);
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/*
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*
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* The following functions are general purpose pattern matching functions.
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*
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*/
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/* ignore the current line */
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int pat_parse_nothing(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* NB: For two strings to be identical, it is required that their lengths match */
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int pat_match_str(struct sample *smp, struct pattern *pattern);
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/* NB: For two binary buffers to be identical, it is required that their lengths match */
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int pat_match_bin(struct sample *smp, struct pattern *pattern);
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/* Checks that the length of the pattern in <test> is included between min and max */
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int pat_match_len(struct sample *smp, struct pattern *pattern);
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/* Checks that the integer in <test> is included between min and max */
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int pat_match_int(struct sample *smp, struct pattern *pattern);
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/* Parse an integer. It is put both in min and max. */
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int pat_parse_int(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse an version. It is put both in min and max. */
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int pat_parse_dotted_ver(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse a range of integers delimited by either ':' or '-'. If only one
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* integer is read, it is set as both min and max.
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*/
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int pat_parse_range(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse a string. It is allocated and duplicated. */
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int pat_parse_str(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse a hexa binary definition. It is allocated and duplicated. */
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int pat_parse_bin(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse and concatenate strings into one. It is allocated and duplicated. */
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int pat_parse_strcat(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse a regex. It is allocated. */
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int pat_parse_reg(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* Parse an IP address and an optional mask in the form addr[/mask].
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* The addr may either be an IPv4 address or a hostname. The mask
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* may either be a dotted mask or a number of bits. Returns 1 if OK,
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* otherwise 0.
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*/
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int pat_parse_ip(const char **text, struct pattern *pattern, struct sample_storage *smp, int *opaque, char **err);
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/* always return false */
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int pat_match_nothing(struct sample *smp, struct pattern *pattern);
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/* Checks that the pattern matches the end of the tested string. */
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int pat_match_end(struct sample *smp, struct pattern *pattern);
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/* Checks that the pattern matches the beginning of the tested string. */
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int pat_match_beg(struct sample *smp, struct pattern *pattern);
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/* Checks that the pattern is included inside the tested string. */
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int pat_match_sub(struct sample *smp, struct pattern *pattern);
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/* Checks that the pattern is included inside the tested string, but enclosed
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* between slashes or at the beginning or end of the string. Slashes at the
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* beginning or end of the pattern are ignored.
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*/
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int pat_match_dir(struct sample *smp, struct pattern *pattern);
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/* Checks that the pattern is included inside the tested string, but enclosed
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* between dots or at the beginning or end of the string. Dots at the beginning
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* or end of the pattern are ignored.
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*/
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int pat_match_dom(struct sample *smp, struct pattern *pattern);
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/* Check that the IPv4 address in <test> matches the IP/mask in pattern */
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int pat_match_ip(struct sample *smp, struct pattern *pattern);
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/* Executes a regex. It temporarily changes the data to add a trailing zero,
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* and restores the previous character when leaving.
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*/
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int pat_match_reg(struct sample *smp, struct pattern *pattern);
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int pattern_read_from_file(struct pattern_expr *expr, const char *filename, int patflags, char **err);
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void pattern_free(struct pattern *pat);
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void pattern_prune_expr(struct pattern_expr *expr);
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void pattern_init_expr(struct pattern_expr *expr);
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#endif
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