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4c7e4b7738
All files that were including one of the following include files have been updated to only include haproxy/api.h or haproxy/api-t.h once instead: - common/config.h - common/compat.h - common/compiler.h - common/defaults.h - common/initcall.h - common/tools.h The choice is simple: if the file only requires type definitions, it includes api-t.h, otherwise it includes the full api.h. In addition, in these files, explicit includes for inttypes.h and limits.h were dropped since these are now covered by api.h and api-t.h. No other change was performed, given that this patch is large and affects 201 files. At least one (tools.h) was already freestanding and didn't get the new one added.
156 lines
5.9 KiB
C
156 lines
5.9 KiB
C
/*
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* include/proto/acl.h
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* This file provides interface definitions for ACL manipulation.
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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_ACL_H
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#define _PROTO_ACL_H
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#include <haproxy/api.h>
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#include <types/acl.h>
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#include <proto/sample.h>
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/*
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* FIXME: we need destructor functions too !
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*/
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/* Negate an acl result. This turns (ACL_MATCH_FAIL, ACL_MATCH_MISS,
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* ACL_MATCH_PASS) into (ACL_MATCH_PASS, ACL_MATCH_MISS, ACL_MATCH_FAIL).
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*/
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static inline enum acl_test_res acl_neg(enum acl_test_res res)
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{
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return (3 >> res);
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}
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/* Convert an acl result to a boolean. Only ACL_MATCH_PASS returns 1. */
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static inline int acl_pass(enum acl_test_res res)
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{
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return (res >> 1);
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}
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/* Return a pointer to the ACL <name> within the list starting at <head>, or
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* NULL if not found.
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*/
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struct acl *find_acl_by_name(const char *name, struct list *head);
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/* Return a pointer to the ACL keyword <kw> within the list starting at <head>,
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* or NULL if not found. Note that if <kw> contains an opening parenthesis,
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* only the left part of it is checked.
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*/
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struct acl_keyword *find_acl_kw(const char *kw);
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/* Parse an ACL expression starting at <args>[0], and return it.
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* Right now, the only accepted syntax is :
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* <subject> [<value>...]
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*/
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struct acl_expr *parse_acl_expr(const char **args, char **err, struct arg_list *al, const char *file, int line);
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/* Purge everything in the acl <acl>, then return <acl>. */
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struct acl *prune_acl(struct acl *acl);
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/* Parse an ACL with the name starting at <args>[0], and with a list of already
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* known ACLs in <acl>. If the ACL was not in the list, it will be added.
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* A pointer to that ACL is returned.
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*
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* args syntax: <aclname> <acl_expr>
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*/
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struct acl *parse_acl(const char **args, struct list *known_acl, char **err, struct arg_list *al, const char *file, int line);
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/* Purge everything in the acl_cond <cond>, then return <cond>. */
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struct acl_cond *prune_acl_cond(struct acl_cond *cond);
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/* Parse an ACL condition starting at <args>[0], relying on a list of already
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* known ACLs passed in <known_acl>. The new condition is returned (or NULL in
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* case of low memory). Supports multiple conditions separated by "or".
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*/
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struct acl_cond *parse_acl_cond(const char **args, struct list *known_acl,
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enum acl_cond_pol pol, char **err, struct arg_list *al,
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const char *file, int line);
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/* Builds an ACL condition starting at the if/unless keyword. The complete
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* condition is returned. NULL is returned in case of error or if the first
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* word is neither "if" nor "unless". It automatically sets the file name and
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* the line number in the condition for better error reporting, and sets the
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* HTTP initialization requirements in the proxy. If <err> is not NULL, it will
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* be set to an error message upon errors, that the caller will have to free.
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*/
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struct acl_cond *build_acl_cond(const char *file, int line, struct list *known_acl,
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struct proxy *px, const char **args, char **err);
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/* Execute condition <cond> and return either ACL_TEST_FAIL, ACL_TEST_MISS or
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* ACL_TEST_PASS depending on the test results. ACL_TEST_MISS may only be
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* returned if <opt> does not contain SMP_OPT_FINAL, indicating that incomplete
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* data is being examined. The function automatically sets SMP_OPT_ITERATE. This
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* function only computes the condition, it does not apply the polarity required
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* by IF/UNLESS, it's up to the caller to do this.
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*/
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enum acl_test_res acl_exec_cond(struct acl_cond *cond, struct proxy *px, struct session *sess, struct stream *strm, unsigned int opt);
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/* Returns a pointer to the first ACL conflicting with usage at place <where>
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* which is one of the SMP_VAL_* bits indicating a check place, or NULL if
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* no conflict is found. Only full conflicts are detected (ACL is not usable).
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* Use the next function to check for useless keywords.
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*/
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const struct acl *acl_cond_conflicts(const struct acl_cond *cond, unsigned int where);
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/* Returns a pointer to the first ACL and its first keyword to conflict with
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* usage at place <where> which is one of the SMP_VAL_* bits indicating a check
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* place. Returns true if a conflict is found, with <acl> and <kw> set (if non
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* null), or false if not conflict is found. The first useless keyword is
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* returned.
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*/
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int acl_cond_kw_conflicts(const struct acl_cond *cond, unsigned int where, struct acl const **acl, char const **kw);
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/*
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* Find targets for userlist and groups in acl. Function returns the number
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* of errors or OK if everything is fine.
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*/
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int acl_find_targets(struct proxy *p);
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/* Return a pointer to the ACL <name> within the list starting at <head>, or
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* NULL if not found.
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*/
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struct acl *find_acl_by_name(const char *name, struct list *head);
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/*
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* Registers the ACL keyword list <kwl> as a list of valid keywords for next
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* parsing sessions.
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*/
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void acl_register_keywords(struct acl_kw_list *kwl);
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/*
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* Unregisters the ACL keyword list <kwl> from the list of valid keywords.
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*/
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void acl_unregister_keywords(struct acl_kw_list *kwl);
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/* initializes ACLs by resolving the sample fetch names they rely upon.
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* Returns 0 on success, otherwise an error.
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*/
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int init_acl();
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#endif /* _PROTO_ACL_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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