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git01.mediatek.com / haproxy / 853b297c9b82e5db58826b07a4438c627b55b04c / . / src / acl.c
blob: 14a0e0ba6c9b42d3a9323bcfadb9c4e465e44f38 [file] [log] [blame]
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1/*
2 * ACL management functions.
3 *
Willy Tarreaud4c33c82013-01-07 21:59:07 +0100[diff] [blame]4 * Copyright 2000-2013 Willy Tarreau <w@1wt.eu>
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
Willy Tarreauae8b7962007-06-09 23:10:04 +0200[diff] [blame]13#include <ctype.h>
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]14#include <stdio.h>
15#include <string.h>
16
Willy Tarreau4c7e4b72020-05-27 12:58:42 +0200[diff] [blame]17#include <haproxy/api.h>
Willy Tarreau853b2972020-05-27 18:01:47 +0200[diff] [blame^]18#include <haproxy/list.h>
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]19#include <common/standard.h>
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +0100[diff] [blame]20#include <common/uri_auth.h>
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]21
Willy Tarreau2b5285d2010-05-09 23:45:24 +0200[diff] [blame]22#include <types/global.h>
23
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]24#include <proto/acl.h>
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]25#include <proto/arg.h>
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]26#include <proto/auth.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200[diff] [blame]27#include <proto/channel.h>
Willy Tarreau404e8ab2009-07-26 19:40:40 +0200[diff] [blame]28#include <proto/log.h>
Thierry FOURNIERed66c292013-11-28 11:05:19 +0100[diff] [blame]29#include <proto/pattern.h>
Willy Tarreau0b1cd942010-05-16 22:18:27 +0200[diff] [blame]30#include <proto/proxy.h>
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]31#include <proto/sample.h>
Willy Tarreaud28c3532012-04-19 19:28:33 +0200[diff] [blame]32#include <proto/stick_table.h>
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]33
Willy Tarreau8d2b7772020-05-27 10:58:19 +0200[diff] [blame]34#include <import/ebsttree.h>
Willy Tarreauc4262962010-05-10 23:42:40 +0200[diff] [blame]35
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]36/* List head of all known ACL keywords */
37static struct acl_kw_list acl_keywords = {
38 .list = LIST_HEAD_INIT(acl_keywords.list)
39};
40
Willy Tarreau0cba6072013-11-28 22:21:02 +0100[diff] [blame]41/* input values are 0 or 3, output is the same */
Thierry FOURNIER1794fdf2014-01-17 15:25:13 +0100[diff] [blame]42static inline enum acl_test_res pat2acl(struct pattern *pat)
Willy Tarreau0cba6072013-11-28 22:21:02 +0100[diff] [blame]43{
Thierry FOURNIER1794fdf2014-01-17 15:25:13 +0100[diff] [blame]44 if (pat)
45 return ACL_TEST_PASS;
46 else
47 return ACL_TEST_FAIL;
Willy Tarreau0cba6072013-11-28 22:21:02 +0100[diff] [blame]48}
49
Willy Tarreaua5909832007-06-17 20:40:25 +0200[diff] [blame]50/*
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]51 * Registers the ACL keyword list <kwl> as a list of valid keywords for next
52 * parsing sessions.
53 */
54void acl_register_keywords(struct acl_kw_list *kwl)
55{
56 LIST_ADDQ(&acl_keywords.list, &kwl->list);
57}
58
59/*
60 * Unregisters the ACL keyword list <kwl> from the list of valid keywords.
61 */
62void acl_unregister_keywords(struct acl_kw_list *kwl)
63{
64 LIST_DEL(&kwl->list);
65 LIST_INIT(&kwl->list);
66}
67
68/* Return a pointer to the ACL <name> within the list starting at <head>, or
69 * NULL if not found.
70 */
71struct acl *find_acl_by_name(const char *name, struct list *head)
72{
73 struct acl *acl;
74 list_for_each_entry(acl, head, list) {
75 if (strcmp(acl->name, name) == 0)
76 return acl;
77 }
78 return NULL;
79}
80
81/* Return a pointer to the ACL keyword <kw>, or NULL if not found. Note that if
Willy Tarreau4bfa4222013-12-16 22:01:06 +0100[diff] [blame]82 * <kw> contains an opening parenthesis or a comma, only the left part of it is
83 * checked.
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]84 */
85struct acl_keyword *find_acl_kw(const char *kw)
86{
87 int index;
88 const char *kwend;
89 struct acl_kw_list *kwl;
90
Willy Tarreau4bfa4222013-12-16 22:01:06 +0100[diff] [blame]91 kwend = kw;
Willy Tarreaued2c6622020-02-14 18:27:10 +0100[diff] [blame]92 while (is_idchar(*kwend))
Willy Tarreau4bfa4222013-12-16 22:01:06 +0100[diff] [blame]93 kwend++;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]94
95 list_for_each_entry(kwl, &acl_keywords.list, list) {
96 for (index = 0; kwl->kw[index].kw != NULL; index++) {
97 if ((strncmp(kwl->kw[index].kw, kw, kwend - kw) == 0) &&
98 kwl->kw[index].kw[kwend-kw] == 0)
99 return &kwl->kw[index];
100 }
101 }
102 return NULL;
103}
104
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]105static struct acl_expr *prune_acl_expr(struct acl_expr *expr)
106{
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]107 struct arg *arg;
Willy Tarreau145325e2017-04-12 23:03:31 +0200[diff] [blame]108 int unresolved = 0;
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]109
Thierry FOURNIER6f7203d2014-01-14 16:24:51 +0100[diff] [blame]110 pattern_prune(&expr->pat);
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]111
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]112 for (arg = expr->smp->arg_p; arg; arg++) {
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]113 if (arg->type == ARGT_STOP)
114 break;
Willy Tarreau496aa012012-06-01 10:38:29 +0200[diff] [blame]115 if (arg->type == ARGT_STR || arg->unresolved) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]116 free(arg->data.str.area);
117 arg->data.str.area = NULL;
118 arg->data.str.data = 0;
Willy Tarreau145325e2017-04-12 23:03:31 +0200[diff] [blame]119 unresolved |= arg->unresolved;
Willy Tarreau496aa012012-06-01 10:38:29 +0200[diff] [blame]120 arg->unresolved = 0;
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]121 }
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]122 }
123
Willy Tarreau145325e2017-04-12 23:03:31 +0200[diff] [blame]124 if (expr->smp->arg_p != empty_arg_list && !unresolved)
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]125 free(expr->smp->arg_p);
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]126 return expr;
127}
128
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]129/* Parse an ACL expression starting at <args>[0], and return it. If <err> is
130 * not NULL, it will be filled with a pointer to an error message in case of
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]131 * error. This pointer must be freeable or NULL. <al> is an arg_list serving
132 * as a list head to report missing dependencies.
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]133 *
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]134 * Right now, the only accepted syntax is :
135 * <subject> [<value>...]
136 */
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]137struct acl_expr *parse_acl_expr(const char **args, char **err, struct arg_list *al,
138 const char *file, int line)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]139{
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]140 __label__ out_return, out_free_expr;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]141 struct acl_expr *expr;
142 struct acl_keyword *aclkw;
Christopher Faulet54ceb042017-06-14 14:41:33 +0200[diff] [blame]143 int refflags, patflags;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]144 const char *arg;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]145 struct sample_expr *smp = NULL;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]146 int idx = 0;
147 char *ckw = NULL;
148 const char *begw;
149 const char *endw;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]150 const char *endt;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]151 int cur_type;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]152 int nbargs;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]153 int operator = STD_OP_EQ;
154 int op;
155 int contain_colon, have_dot;
156 const char *dot;
157 signed long long value, minor;
158 /* The following buffer contain two numbers, a ':' separator and the final \0. */
159 char buffer[NB_LLMAX_STR + 1 + NB_LLMAX_STR + 1];
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]160 int is_loaded;
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]161 int unique_id;
162 char *error;
163 struct pat_ref *ref;
164 struct pattern_expr *pattern_expr;
Thierry FOURNIER9860c412014-01-29 14:23:29 +0100[diff] [blame]165 int load_as_map = 0;
Willy Tarreau6f0ddca2014-08-29 17:36:40 +0200[diff] [blame]166 int acl_conv_found = 0;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]167
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]168 /* First, we look for an ACL keyword. And if we don't find one, then
169 * we look for a sample fetch expression starting with a sample fetch
170 * keyword.
Willy Tarreaubef91e72013-03-31 23:14:46 +0200[diff] [blame]171 */
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]172
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]173 al->ctx = ARGC_ACL; // to report errors while resolving args late
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]174 al->kw = *args;
175 al->conv = NULL;
176
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]177 aclkw = find_acl_kw(args[0]);
Willy Tarreau20490922014-03-17 18:04:27 +0100[diff] [blame]178 if (aclkw) {
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]179 /* OK we have a real ACL keyword */
Willy Tarreau9987ea92013-06-11 21:09:06 +0200[diff] [blame]180
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]181 /* build new sample expression for this ACL */
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]182 smp = calloc(1, sizeof(*smp));
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]183 if (!smp) {
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]184 memprintf(err, "out of memory when parsing ACL expression");
185 goto out_return;
186 }
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]187 LIST_INIT(&(smp->conv_exprs));
188 smp->fetch = aclkw->smp;
189 smp->arg_p = empty_arg_list;
Willy Tarreau34db1082012-04-19 17:16:54 +0200[diff] [blame]190
Joseph Herlant68082792018-11-15 14:55:09 -0800[diff] [blame]191 /* look for the beginning of the subject arguments */
Willy Tarreaued2c6622020-02-14 18:27:10 +0100[diff] [blame]192 for (arg = args[0]; is_idchar(*arg); arg++)
193 ;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]194
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]195 /* At this point, we have :
196 * - args[0] : beginning of the keyword
197 * - arg : end of the keyword, first character not part of keyword
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]198 */
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]199 nbargs = make_arg_list(arg, -1, smp->fetch->arg_mask, &smp->arg_p,
200 err, &endt, NULL, al);
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]201 if (nbargs < 0) {
202 /* note that make_arg_list will have set <err> here */
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]203 memprintf(err, "ACL keyword '%s' : %s", aclkw->kw, *err);
204 goto out_free_smp;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]205 }
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]206
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]207 if (!smp->arg_p) {
208 smp->arg_p = empty_arg_list;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]209 }
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]210 else if (smp->fetch->val_args && !smp->fetch->val_args(smp->arg_p, err)) {
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]211 /* invalid keyword argument, error must have been
212 * set by val_args().
213 */
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]214 memprintf(err, "in argument to '%s', %s", aclkw->kw, *err);
215 goto out_free_smp;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]216 }
217 arg = endt;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]218
Joseph Herlant68082792018-11-15 14:55:09 -0800[diff] [blame]219 /* look for the beginning of the converters list. Those directly attached
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]220 * to the ACL keyword are found just after <arg> which points to the comma.
Willy Tarreau6f0ddca2014-08-29 17:36:40 +0200[diff] [blame]221 * If we find any converter, then we don't use the ACL keyword's match
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]222 * anymore but the one related to the converter's output type.
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]223 */
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]224 cur_type = smp->fetch->out_type;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]225 while (*arg) {
226 struct sample_conv *conv;
227 struct sample_conv_expr *conv_expr;
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]228 int err_arg;
229 int argcnt;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]230
231 if (*arg && *arg != ',') {
232 if (ckw)
Willy Tarreau97108e02016-11-25 07:33:24 +0100[diff] [blame]233 memprintf(err, "ACL keyword '%s' : missing comma after converter '%s'.",
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]234 aclkw->kw, ckw);
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]235 else
236 memprintf(err, "ACL keyword '%s' : missing comma after fetch keyword.",
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]237 aclkw->kw);
238 goto out_free_smp;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]239 }
Willy Tarreauae52f062012-04-26 12:13:35 +0200[diff] [blame]240
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]241 /* FIXME: how long should we support such idiocies ? Maybe we
242 * should already warn ?
243 */
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]244 while (*arg == ',') /* then trailing commas */
245 arg++;
Willy Tarreau2e845be2012-10-19 19:49:09 +0200[diff] [blame]246
Willy Tarreau97108e02016-11-25 07:33:24 +0100[diff] [blame]247 begw = arg; /* start of converter keyword */
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]248
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]249 if (!*begw)
250 /* none ? end of converters */
251 break;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]252
Willy Tarreaued2c6622020-02-14 18:27:10 +0100[diff] [blame]253 for (endw = begw; is_idchar(*endw); endw++)
254 ;
Willy Tarreau9ca69362013-10-22 19:10:06 +0200[diff] [blame]255
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]256 free(ckw);
257 ckw = my_strndup(begw, endw - begw);
Willy Tarreauf75d0082013-04-07 21:20:44 +0200[diff] [blame]258
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]259 conv = find_sample_conv(begw, endw - begw);
260 if (!conv) {
261 /* Unknown converter method */
Willy Tarreau97108e02016-11-25 07:33:24 +0100[diff] [blame]262 memprintf(err, "ACL keyword '%s' : unknown converter '%s'.",
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]263 aclkw->kw, ckw);
264 goto out_free_smp;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]265 }
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]266
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]267 arg = endw;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]268
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]269 if (conv->in_type >= SMP_TYPES || conv->out_type >= SMP_TYPES) {
Willy Tarreau97108e02016-11-25 07:33:24 +0100[diff] [blame]270 memprintf(err, "ACL keyword '%s' : returns type of converter '%s' is unknown.",
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]271 aclkw->kw, ckw);
272 goto out_free_smp;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]273 }
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]274
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]275 /* If impossible type conversion */
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]276 if (!sample_casts[cur_type][conv->in_type]) {
Willy Tarreau97108e02016-11-25 07:33:24 +0100[diff] [blame]277 memprintf(err, "ACL keyword '%s' : converter '%s' cannot be applied.",
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]278 aclkw->kw, ckw);
279 goto out_free_smp;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]280 }
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]281
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]282 cur_type = conv->out_type;
Vincent Bernat02779b62016-04-03 13:48:43 +0200[diff] [blame]283 conv_expr = calloc(1, sizeof(*conv_expr));
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]284 if (!conv_expr)
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]285 goto out_free_smp;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]286
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]287 LIST_ADDQ(&(smp->conv_exprs), &(conv_expr->list));
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]288 conv_expr->conv = conv;
Willy Tarreau6f0ddca2014-08-29 17:36:40 +0200[diff] [blame]289 acl_conv_found = 1;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]290
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]291 al->kw = smp->fetch->kw;
292 al->conv = conv_expr->conv->kw;
293 argcnt = make_arg_list(endw, -1, conv->arg_mask, &conv_expr->arg_p, err, &arg, &err_arg, al);
294 if (argcnt < 0) {
295 memprintf(err, "ACL keyword '%s' : invalid arg %d in converter '%s' : %s.",
296 aclkw->kw, err_arg+1, ckw, *err);
297 goto out_free_smp;
298 }
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]299
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]300 if (argcnt && !conv->arg_mask) {
301 memprintf(err, "converter '%s' does not support any args", ckw);
302 goto out_free_smp;
303 }
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]304
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]305 if (!conv_expr->arg_p)
306 conv_expr->arg_p = empty_arg_list;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]307
Willy Tarreau80b53ff2020-02-14 08:40:37 +0100[diff] [blame]308 if (conv->val_args && !conv->val_args(conv_expr->arg_p, conv, file, line, err)) {
309 memprintf(err, "ACL keyword '%s' : invalid args in converter '%s' : %s.",
310 aclkw->kw, ckw, *err);
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]311 goto out_free_smp;
Willy Tarreau131b4662013-12-13 01:08:36 +0100[diff] [blame]312 }
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]313 }
Christopher Faulet361935a2019-09-13 09:50:15 +0200[diff] [blame]314 free(ckw);
315 ckw = NULL;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]316 }
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]317 else {
318 /* This is not an ACL keyword, so we hope this is a sample fetch
319 * keyword that we're going to transparently use as an ACL. If
320 * so, we retrieve a completely parsed expression with args and
321 * convs already done.
322 */
Willy Tarreaue3b57bf2020-02-14 16:50:14 +0100[diff] [blame]323 smp = sample_parse_expr((char **)args, &idx, file, line, err, al, NULL);
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]324 if (!smp) {
325 memprintf(err, "%s in ACL expression '%s'", *err, *args);
326 goto out_return;
327 }
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]328 cur_type = smp_expr_output_type(smp);
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]329 }
330
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]331 expr = calloc(1, sizeof(*expr));
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]332 if (!expr) {
333 memprintf(err, "out of memory when parsing ACL expression");
Christopher Faulet361935a2019-09-13 09:50:15 +0200[diff] [blame]334 goto out_free_smp;
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]335 }
336
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]337 pattern_init_head(&expr->pat);
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]338
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]339 expr->pat.expect_type = cur_type;
340 expr->smp = smp;
341 expr->kw = smp->fetch->kw;
342 smp = NULL; /* don't free it anymore */
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]343
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]344 if (aclkw && !acl_conv_found) {
345 expr->kw = aclkw->kw;
346 expr->pat.parse = aclkw->parse ? aclkw->parse : pat_parse_fcts[aclkw->match_type];
347 expr->pat.index = aclkw->index ? aclkw->index : pat_index_fcts[aclkw->match_type];
348 expr->pat.match = aclkw->match ? aclkw->match : pat_match_fcts[aclkw->match_type];
349 expr->pat.delete = aclkw->delete ? aclkw->delete : pat_delete_fcts[aclkw->match_type];
350 expr->pat.prune = aclkw->prune ? aclkw->prune : pat_prune_fcts[aclkw->match_type];
Thierry FOURNIERc5a4e982014-03-05 16:07:08 +0100[diff] [blame]351 }
352
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]353 if (!expr->pat.parse) {
Willy Tarreauaa4e32e2014-08-29 19:09:48 +0200[diff] [blame]354 /* Parse/index/match functions depend on the expression type,
355 * so we have to map them now. Some types can be automatically
356 * converted.
357 */
358 switch (cur_type) {
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]359 case SMP_T_BOOL:
360 expr->pat.parse = pat_parse_fcts[PAT_MATCH_BOOL];
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]361 expr->pat.index = pat_index_fcts[PAT_MATCH_BOOL];
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]362 expr->pat.match = pat_match_fcts[PAT_MATCH_BOOL];
Thierry FOURNIERb1136502014-01-15 11:38:49 +0100[diff] [blame]363 expr->pat.delete = pat_delete_fcts[PAT_MATCH_BOOL];
Thierry FOURNIER6f7203d2014-01-14 16:24:51 +0100[diff] [blame]364 expr->pat.prune = pat_prune_fcts[PAT_MATCH_BOOL];
Thierry FOURNIER5d344082014-01-27 14:19:53 +0100[diff] [blame]365 expr->pat.expect_type = pat_match_types[PAT_MATCH_BOOL];
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]366 break;
367 case SMP_T_SINT:
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]368 expr->pat.parse = pat_parse_fcts[PAT_MATCH_INT];
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]369 expr->pat.index = pat_index_fcts[PAT_MATCH_INT];
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]370 expr->pat.match = pat_match_fcts[PAT_MATCH_INT];
Thierry FOURNIERb1136502014-01-15 11:38:49 +0100[diff] [blame]371 expr->pat.delete = pat_delete_fcts[PAT_MATCH_INT];
Thierry FOURNIER6f7203d2014-01-14 16:24:51 +0100[diff] [blame]372 expr->pat.prune = pat_prune_fcts[PAT_MATCH_INT];
Thierry FOURNIER5d344082014-01-27 14:19:53 +0100[diff] [blame]373 expr->pat.expect_type = pat_match_types[PAT_MATCH_INT];
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]374 break;
Willy Tarreau78c5eec2019-04-19 11:45:20 +0200[diff] [blame]375 case SMP_T_ADDR:
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]376 case SMP_T_IPV4:
377 case SMP_T_IPV6:
378 expr->pat.parse = pat_parse_fcts[PAT_MATCH_IP];
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]379 expr->pat.index = pat_index_fcts[PAT_MATCH_IP];
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]380 expr->pat.match = pat_match_fcts[PAT_MATCH_IP];
Thierry FOURNIERb1136502014-01-15 11:38:49 +0100[diff] [blame]381 expr->pat.delete = pat_delete_fcts[PAT_MATCH_IP];
Thierry FOURNIER6f7203d2014-01-14 16:24:51 +0100[diff] [blame]382 expr->pat.prune = pat_prune_fcts[PAT_MATCH_IP];
Thierry FOURNIER5d344082014-01-27 14:19:53 +0100[diff] [blame]383 expr->pat.expect_type = pat_match_types[PAT_MATCH_IP];
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]384 break;
Thierry FOURNIER9fefbd52014-05-11 15:15:00 +0200[diff] [blame]385 case SMP_T_STR:
386 expr->pat.parse = pat_parse_fcts[PAT_MATCH_STR];
387 expr->pat.index = pat_index_fcts[PAT_MATCH_STR];
388 expr->pat.match = pat_match_fcts[PAT_MATCH_STR];
389 expr->pat.delete = pat_delete_fcts[PAT_MATCH_STR];
390 expr->pat.prune = pat_prune_fcts[PAT_MATCH_STR];
391 expr->pat.expect_type = pat_match_types[PAT_MATCH_STR];
392 break;
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]393 }
394 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]395
Willy Tarreau3c3dfd52013-11-04 18:09:12 +0100[diff] [blame]396 /* Additional check to protect against common mistakes */
Thierry FOURNIERd163e1c2013-11-28 11:41:23 +0100[diff] [blame]397 if (expr->pat.parse && cur_type != SMP_T_BOOL && !*args[1]) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]398 ha_warning("parsing acl keyword '%s' :\n"
399 " no pattern to match against were provided, so this ACL will never match.\n"
400 " If this is what you intended, please add '--' to get rid of this warning.\n"
401 " If you intended to match only for existence, please use '-m found'.\n"
402 " If you wanted to force an int to match as a bool, please use '-m bool'.\n"
403 "\n",
404 args[0]);
Willy Tarreau3c3dfd52013-11-04 18:09:12 +0100[diff] [blame]405 }
406
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]407 args++;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]408
409 /* check for options before patterns. Supported options are :
410 * -i : ignore case for all patterns by default
411 * -f : read patterns from those files
Willy Tarreau5adeda12013-03-31 22:13:34 +0200[diff] [blame]412 * -m : force matching method (must be used before -f)
Thierry FOURNIER9860c412014-01-29 14:23:29 +0100[diff] [blame]413 * -M : load the file as map file
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]414 * -u : force the unique id of the acl
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]415 * -- : everything after this is not an option
416 */
Christopher Faulet54ceb042017-06-14 14:41:33 +0200[diff] [blame]417 refflags = PAT_REF_ACL;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]418 patflags = 0;
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]419 is_loaded = 0;
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]420 unique_id = -1;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]421 while (**args == '-') {
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]422 if (strcmp(*args, "-i") == 0)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]423 patflags |= PAT_MF_IGNORE_CASE;
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]424 else if (strcmp(*args, "-n") == 0)
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]425 patflags |= PAT_MF_NO_DNS;
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]426 else if (strcmp(*args, "-u") == 0) {
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]427 unique_id = strtol(args[1], &error, 10);
428 if (*error != '\0') {
429 memprintf(err, "the argument of -u must be an integer");
430 goto out_free_expr;
431 }
432
433 /* Check if this id is really unique. */
434 if (pat_ref_lookupid(unique_id)) {
435 memprintf(err, "the id is already used");
436 goto out_free_expr;
437 }
438
439 args++;
440 }
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]441 else if (strcmp(*args, "-f") == 0) {
Thierry FOURNIERd163e1c2013-11-28 11:41:23 +0100[diff] [blame]442 if (!expr->pat.parse) {
Willy Tarreau9987ea92013-06-11 21:09:06 +0200[diff] [blame]443 memprintf(err, "matching method must be specified first (using '-m') when using a sample fetch of this type ('%s')", expr->kw);
Willy Tarreaubef91e72013-03-31 23:14:46 +0200[diff] [blame]444 goto out_free_expr;
445 }
446
Christopher Faulet54ceb042017-06-14 14:41:33 +0200[diff] [blame]447 if (!pattern_read_from_file(&expr->pat, refflags, args[1], patflags, load_as_map, err, file, line))
Willy Tarreau2b5285d2010-05-09 23:45:24 +0200[diff] [blame]448 goto out_free_expr;
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]449 is_loaded = 1;
Willy Tarreau5adeda12013-03-31 22:13:34 +0200[diff] [blame]450 args++;
451 }
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]452 else if (strcmp(*args, "-m") == 0) {
Willy Tarreau5adeda12013-03-31 22:13:34 +0200[diff] [blame]453 int idx;
454
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]455 if (is_loaded) {
Willy Tarreau5adeda12013-03-31 22:13:34 +0200[diff] [blame]456 memprintf(err, "'-m' must only be specified before patterns and files in parsing ACL expression");
457 goto out_free_expr;
458 }
459
Willy Tarreau6f8fe312013-11-28 22:24:25 +0100[diff] [blame]460 idx = pat_find_match_name(args[1]);
Willy Tarreau5adeda12013-03-31 22:13:34 +0200[diff] [blame]461 if (idx < 0) {
462 memprintf(err, "unknown matching method '%s' when parsing ACL expression", args[1]);
463 goto out_free_expr;
464 }
465
466 /* Note: -m found is always valid, bool/int are compatible, str/bin/reg/len are compatible */
Willy Tarreau9bb49f62015-09-24 16:37:12 +0200[diff] [blame]467 if (idx != PAT_MATCH_FOUND && !sample_casts[cur_type][pat_match_types[idx]]) {
Willy Tarreau93fddf12013-03-31 22:59:32 +0200[diff] [blame]468 memprintf(err, "matching method '%s' cannot be used with fetch keyword '%s'", args[1], expr->kw);
Willy Tarreau5adeda12013-03-31 22:13:34 +0200[diff] [blame]469 goto out_free_expr;
470 }
Thierry FOURNIERe3ded592013-12-06 15:36:54 +0100[diff] [blame]471 expr->pat.parse = pat_parse_fcts[idx];
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]472 expr->pat.index = pat_index_fcts[idx];
Thierry FOURNIERe3ded592013-12-06 15:36:54 +0100[diff] [blame]473 expr->pat.match = pat_match_fcts[idx];
Thierry FOURNIERb1136502014-01-15 11:38:49 +0100[diff] [blame]474 expr->pat.delete = pat_delete_fcts[idx];
Thierry FOURNIER6f7203d2014-01-14 16:24:51 +0100[diff] [blame]475 expr->pat.prune = pat_prune_fcts[idx];
Thierry FOURNIER5d344082014-01-27 14:19:53 +0100[diff] [blame]476 expr->pat.expect_type = pat_match_types[idx];
Willy Tarreau2b5285d2010-05-09 23:45:24 +0200[diff] [blame]477 args++;
478 }
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]479 else if (strcmp(*args, "-M") == 0) {
Christopher Faulet54ceb042017-06-14 14:41:33 +0200[diff] [blame]480 refflags |= PAT_REF_MAP;
Thierry FOURNIER9860c412014-01-29 14:23:29 +0100[diff] [blame]481 load_as_map = 1;
482 }
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]483 else if (strcmp(*args, "--") == 0) {
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]484 args++;
485 break;
486 }
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]487 else {
488 memprintf(err, "'%s' is not a valid ACL option. Please use '--' before any pattern beginning with a '-'", args[0]);
489 goto out_free_expr;
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]490 break;
Willy Tarreau2039bba2014-05-11 09:43:46 +0200[diff] [blame]491 }
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]492 args++;
493 }
494
Thierry FOURNIERd163e1c2013-11-28 11:41:23 +0100[diff] [blame]495 if (!expr->pat.parse) {
Willy Tarreau9987ea92013-06-11 21:09:06 +0200[diff] [blame]496 memprintf(err, "matching method must be specified first (using '-m') when using a sample fetch of this type ('%s')", expr->kw);
Willy Tarreaubef91e72013-03-31 23:14:46 +0200[diff] [blame]497 goto out_free_expr;
498 }
499
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]500 /* Create displayed reference */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]501 snprintf(trash.area, trash.size, "acl '%s' file '%s' line %d",
502 expr->kw, file, line);
503 trash.area[trash.size - 1] = '\0';
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]504
Ilya Shipitsin6fb0f212020-04-02 15:25:26 +0500[diff] [blame]505 /* Create new pattern reference. */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]506 ref = pat_ref_newid(unique_id, trash.area, PAT_REF_ACL);
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]507 if (!ref) {
508 memprintf(err, "memory error");
509 goto out_free_expr;
510 }
511
512 /* Create new pattern expression associated to this reference. */
Emeric Brun7d27f3c2017-07-03 17:54:23 +0200[diff] [blame]513 pattern_expr = pattern_new_expr(&expr->pat, ref, patflags, err, NULL);
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]514 if (!pattern_expr)
515 goto out_free_expr;
516
Willy Tarreauc8d7c962007-06-17 08:20:33 +0200[diff] [blame]517 /* now parse all patterns */
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]518 while (**args) {
519 arg = *args;
520
521 /* Compatibility layer. Each pattern can parse only one string per pattern,
522 * but the pat_parser_int() and pat_parse_dotted_ver() parsers were need
Ilya Shipitsin6fb0f212020-04-02 15:25:26 +0500[diff] [blame]523 * optionally two operators. The first operator is the match method: eq,
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]524 * le, lt, ge and gt. pat_parse_int() and pat_parse_dotted_ver() functions
525 * can have a compatibility syntax based on ranges:
526 *
527 * pat_parse_int():
528 *
529 * "eq x" -> "x" or "x:x"
530 * "le x" -> ":x"
531 * "lt x" -> ":y" (with y = x - 1)
532 * "ge x" -> "x:"
533 * "gt x" -> "y:" (with y = x + 1)
534 *
535 * pat_parse_dotted_ver():
536 *
537 * "eq x.y" -> "x.y" or "x.y:x.y"
538 * "le x.y" -> ":x.y"
539 * "lt x.y" -> ":w.z" (with w.z = x.y - 1)
540 * "ge x.y" -> "x.y:"
541 * "gt x.y" -> "w.z:" (with w.z = x.y + 1)
542 *
543 * If y is not present, assume that is "0".
544 *
545 * The syntax eq, le, lt, ge and gt are proper to the acl syntax. The
546 * following block of code detect the operator, and rewrite each value
547 * in parsable string.
548 */
549 if (expr->pat.parse == pat_parse_int ||
550 expr->pat.parse == pat_parse_dotted_ver) {
551 /* Check for operator. If the argument is operator, memorise it and
552 * continue to the next argument.
553 */
554 op = get_std_op(arg);
555 if (op != -1) {
556 operator = op;
557 args++;
558 continue;
559 }
560
561 /* Check if the pattern contain ':' or '-' character. */
562 contain_colon = (strchr(arg, ':') || strchr(arg, '-'));
563
564 /* If the pattern contain ':' or '-' character, give it to the parser as is.
565 * If no contain ':' and operator is STD_OP_EQ, give it to the parser as is.
566 * In other case, try to convert the value according with the operator.
567 */
568 if (!contain_colon && operator != STD_OP_EQ) {
569 /* Search '.' separator. */
570 dot = strchr(arg, '.');
571 if (!dot) {
572 have_dot = 0;
573 minor = 0;
574 dot = arg + strlen(arg);
575 }
576 else
577 have_dot = 1;
578
579 /* convert the integer minor part for the pat_parse_dotted_ver() function. */
580 if (expr->pat.parse == pat_parse_dotted_ver && have_dot) {
581 if (strl2llrc(dot+1, strlen(dot+1), &minor) != 0) {
582 memprintf(err, "'%s' is neither a number nor a supported operator", arg);
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]583 goto out_free_expr;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]584 }
585 if (minor >= 65536) {
586 memprintf(err, "'%s' contains too large a minor value", arg);
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]587 goto out_free_expr;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]588 }
589 }
590
591 /* convert the integer value for the pat_parse_int() function, and the
592 * integer major part for the pat_parse_dotted_ver() function.
593 */
594 if (strl2llrc(arg, dot - arg, &value) != 0) {
595 memprintf(err, "'%s' is neither a number nor a supported operator", arg);
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]596 goto out_free_expr;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]597 }
598 if (expr->pat.parse == pat_parse_dotted_ver) {
599 if (value >= 65536) {
600 memprintf(err, "'%s' contains too large a major value", arg);
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]601 goto out_free_expr;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]602 }
603 value = (value << 16) | (minor & 0xffff);
604 }
605
606 switch (operator) {
607
608 case STD_OP_EQ: /* this case is not possible. */
609 memprintf(err, "internal error");
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]610 goto out_free_expr;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]611
612 case STD_OP_GT:
613 value++; /* gt = ge + 1 */
614
615 case STD_OP_GE:
616 if (expr->pat.parse == pat_parse_int)
617 snprintf(buffer, NB_LLMAX_STR+NB_LLMAX_STR+2, "%lld:", value);
618 else
619 snprintf(buffer, NB_LLMAX_STR+NB_LLMAX_STR+2, "%lld.%lld:",
620 value >> 16, value & 0xffff);
621 arg = buffer;
622 break;
623
624 case STD_OP_LT:
625 value--; /* lt = le - 1 */
626
627 case STD_OP_LE:
628 if (expr->pat.parse == pat_parse_int)
629 snprintf(buffer, NB_LLMAX_STR+NB_LLMAX_STR+2, ":%lld", value);
630 else
631 snprintf(buffer, NB_LLMAX_STR+NB_LLMAX_STR+2, ":%lld.%lld",
632 value >> 16, value & 0xffff);
633 arg = buffer;
634 break;
635 }
636 }
637 }
638
Thierry FOURNIER3534d882014-01-20 17:01:44 +0100[diff] [blame]639 /* Add sample to the reference, and try to compile it fior each pattern
640 * using this value.
641 */
Thierry FOURNIERe47e4e22014-04-28 11:18:57 +0200[diff] [blame]642 if (!pat_ref_add(ref, arg, NULL, err))
Thierry FOURNIERb9b08462013-12-13 15:12:32 +0100[diff] [blame]643 goto out_free_expr;
Thierry FOURNIER511e9472014-01-23 17:40:34 +0100[diff] [blame]644 args++;
645 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]646
647 return expr;
648
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]649 out_free_expr:
650 prune_acl_expr(expr);
651 free(expr);
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]652 out_free_smp:
Christopher Faulet361935a2019-09-13 09:50:15 +0200[diff] [blame]653 free(ckw);
Willy Tarreauc37a3c72013-12-13 01:24:09 +0100[diff] [blame]654 free(smp);
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]655 out_return:
656 return NULL;
657}
658
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200[diff] [blame]659/* Purge everything in the acl <acl>, then return <acl>. */
660struct acl *prune_acl(struct acl *acl) {
661
662 struct acl_expr *expr, *exprb;
663
664 free(acl->name);
665
666 list_for_each_entry_safe(expr, exprb, &acl->expr, list) {
667 LIST_DEL(&expr->list);
668 prune_acl_expr(expr);
669 free(expr);
670 }
671
672 return acl;
673}
674
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]675/* Parse an ACL with the name starting at <args>[0], and with a list of already
676 * known ACLs in <acl>. If the ACL was not in the list, it will be added.
Willy Tarreau2a56c5e2010-03-15 16:13:29 +0100[diff] [blame]677 * A pointer to that ACL is returned. If the ACL has an empty name, then it's
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]678 * an anonymous one and it won't be merged with any other one. If <err> is not
679 * NULL, it will be filled with an appropriate error. This pointer must be
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]680 * freeable or NULL. <al> is the arg_list serving as a head for unresolved
681 * dependencies.
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]682 *
683 * args syntax: <aclname> <acl_expr>
684 */
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]685struct acl *parse_acl(const char **args, struct list *known_acl, char **err, struct arg_list *al,
686 const char *file, int line)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]687{
688 __label__ out_return, out_free_acl_expr, out_free_name;
689 struct acl *cur_acl;
690 struct acl_expr *acl_expr;
691 char *name;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]692 const char *pos;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]693
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]694 if (**args && (pos = invalid_char(*args))) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]695 memprintf(err, "invalid character in ACL name : '%c'", *pos);
Willy Tarreau2e74c3f2007-12-02 18:45:09 +0100[diff] [blame]696 goto out_return;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]697 }
Willy Tarreau2e74c3f2007-12-02 18:45:09 +0100[diff] [blame]698
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]699 acl_expr = parse_acl_expr(args + 1, err, al, file, line);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]700 if (!acl_expr) {
701 /* parse_acl_expr will have filled <err> here */
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]702 goto out_return;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]703 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]704
Willy Tarreau404e8ab2009-07-26 19:40:40 +0200[diff] [blame]705 /* Check for args beginning with an opening parenthesis just after the
706 * subject, as this is almost certainly a typo. Right now we can only
707 * emit a warning, so let's do so.
708 */
Krzysztof Piotr Oledzki4cdd8312009-10-05 00:23:35 +0200[diff] [blame]709 if (!strchr(args[1], '(') && *args[2] == '(')
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]710 ha_warning("parsing acl '%s' :\n"
711 " matching '%s' for pattern '%s' is likely a mistake and probably\n"
712 " not what you want. Maybe you need to remove the extraneous space before '('.\n"
713 " If you are really sure this is not an error, please insert '--' between the\n"
714 " match and the pattern to make this warning message disappear.\n",
715 args[0], args[1], args[2]);
Willy Tarreau404e8ab2009-07-26 19:40:40 +0200[diff] [blame]716
Willy Tarreau2a56c5e2010-03-15 16:13:29 +0100[diff] [blame]717 if (*args[0])
718 cur_acl = find_acl_by_name(args[0], known_acl);
719 else
720 cur_acl = NULL;
721
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]722 if (!cur_acl) {
723 name = strdup(args[0]);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]724 if (!name) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]725 memprintf(err, "out of memory when parsing ACL");
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]726 goto out_free_acl_expr;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]727 }
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]728 cur_acl = calloc(1, sizeof(*cur_acl));
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]729 if (cur_acl == NULL) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]730 memprintf(err, "out of memory when parsing ACL");
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]731 goto out_free_name;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]732 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]733
734 LIST_INIT(&cur_acl->expr);
735 LIST_ADDQ(known_acl, &cur_acl->list);
736 cur_acl->name = name;
737 }
738
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]739 /* We want to know what features the ACL needs (typically HTTP parsing),
740 * and where it may be used. If an ACL relies on multiple matches, it is
741 * OK if at least one of them may match in the context where it is used.
742 */
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]743 cur_acl->use |= acl_expr->smp->fetch->use;
744 cur_acl->val |= acl_expr->smp->fetch->val;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]745 LIST_ADDQ(&cur_acl->expr, &acl_expr->list);
746 return cur_acl;
747
748 out_free_name:
749 free(name);
750 out_free_acl_expr:
751 prune_acl_expr(acl_expr);
752 free(acl_expr);
753 out_return:
754 return NULL;
755}
756
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]757/* Some useful ACLs provided by default. Only those used are allocated. */
758
759const struct {
760 const char *name;
761 const char *expr[4]; /* put enough for longest expression */
762} default_acl_list[] = {
Willy Tarreau58393e12008-07-20 10:39:22 +0200[diff] [blame]763 { .name = "TRUE", .expr = {"always_true",""}},
764 { .name = "FALSE", .expr = {"always_false",""}},
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]765 { .name = "LOCALHOST", .expr = {"src","127.0.0.1/8",""}},
Willy Tarreau2492d5b2009-07-11 00:06:00 +0200[diff] [blame]766 { .name = "HTTP", .expr = {"req_proto_http",""}},
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]767 { .name = "HTTP_1.0", .expr = {"req_ver","1.0",""}},
768 { .name = "HTTP_1.1", .expr = {"req_ver","1.1",""}},
769 { .name = "METH_CONNECT", .expr = {"method","CONNECT",""}},
Daniel Schneller9ff96c72016-04-11 17:45:29 +0200[diff] [blame]770 { .name = "METH_DELETE", .expr = {"method","DELETE",""}},
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]771 { .name = "METH_GET", .expr = {"method","GET","HEAD",""}},
772 { .name = "METH_HEAD", .expr = {"method","HEAD",""}},
773 { .name = "METH_OPTIONS", .expr = {"method","OPTIONS",""}},
774 { .name = "METH_POST", .expr = {"method","POST",""}},
Daniel Schneller9ff96c72016-04-11 17:45:29 +0200[diff] [blame]775 { .name = "METH_PUT", .expr = {"method","PUT",""}},
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]776 { .name = "METH_TRACE", .expr = {"method","TRACE",""}},
777 { .name = "HTTP_URL_ABS", .expr = {"url_reg","^[^/:]*://",""}},
778 { .name = "HTTP_URL_SLASH", .expr = {"url_beg","/",""}},
779 { .name = "HTTP_URL_STAR", .expr = {"url","*",""}},
780 { .name = "HTTP_CONTENT", .expr = {"hdr_val(content-length)","gt","0",""}},
Emeric Brunbede3d02009-06-30 17:54:00 +0200[diff] [blame]781 { .name = "RDP_COOKIE", .expr = {"req_rdp_cookie_cnt","gt","0",""}},
Willy Tarreauc6317702008-07-20 09:29:50 +0200[diff] [blame]782 { .name = "REQ_CONTENT", .expr = {"req_len","gt","0",""}},
Willy Tarreaub6fb4202008-07-20 11:18:28 +0200[diff] [blame]783 { .name = "WAIT_END", .expr = {"wait_end",""}},
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]784 { .name = NULL, .expr = {""}}
785};
786
787/* Find a default ACL from the default_acl list, compile it and return it.
788 * If the ACL is not found, NULL is returned. In theory, it cannot fail,
789 * except when default ACLs are broken, in which case it will return NULL.
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]790 * If <known_acl> is not NULL, the ACL will be queued at its tail. If <err> is
791 * not NULL, it will be filled with an error message if an error occurs. This
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]792 * pointer must be freeable or NULL. <al> is an arg_list serving as a list head
793 * to report missing dependencies.
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]794 */
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]795static struct acl *find_acl_default(const char *acl_name, struct list *known_acl,
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]796 char **err, struct arg_list *al,
797 const char *file, int line)
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]798{
799 __label__ out_return, out_free_acl_expr, out_free_name;
800 struct acl *cur_acl;
801 struct acl_expr *acl_expr;
802 char *name;
803 int index;
804
805 for (index = 0; default_acl_list[index].name != NULL; index++) {
806 if (strcmp(acl_name, default_acl_list[index].name) == 0)
807 break;
808 }
809
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]810 if (default_acl_list[index].name == NULL) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]811 memprintf(err, "no such ACL : '%s'", acl_name);
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]812 return NULL;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]813 }
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]814
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]815 acl_expr = parse_acl_expr((const char **)default_acl_list[index].expr, err, al, file, line);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]816 if (!acl_expr) {
817 /* parse_acl_expr must have filled err here */
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]818 goto out_return;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]819 }
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]820
821 name = strdup(acl_name);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]822 if (!name) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]823 memprintf(err, "out of memory when building default ACL '%s'", acl_name);
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]824 goto out_free_acl_expr;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]825 }
826
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]827 cur_acl = calloc(1, sizeof(*cur_acl));
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]828 if (cur_acl == NULL) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]829 memprintf(err, "out of memory when building default ACL '%s'", acl_name);
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]830 goto out_free_name;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]831 }
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]832
833 cur_acl->name = name;
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]834 cur_acl->use |= acl_expr->smp->fetch->use;
835 cur_acl->val |= acl_expr->smp->fetch->val;
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]836 LIST_INIT(&cur_acl->expr);
837 LIST_ADDQ(&cur_acl->expr, &acl_expr->list);
838 if (known_acl)
839 LIST_ADDQ(known_acl, &cur_acl->list);
840
841 return cur_acl;
842
843 out_free_name:
844 free(name);
845 out_free_acl_expr:
846 prune_acl_expr(acl_expr);
847 free(acl_expr);
848 out_return:
849 return NULL;
850}
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]851
852/* Purge everything in the acl_cond <cond>, then return <cond>. */
853struct acl_cond *prune_acl_cond(struct acl_cond *cond)
854{
855 struct acl_term_suite *suite, *tmp_suite;
856 struct acl_term *term, *tmp_term;
857
858 /* iterate through all term suites and free all terms and all suites */
859 list_for_each_entry_safe(suite, tmp_suite, &cond->suites, list) {
860 list_for_each_entry_safe(term, tmp_term, &suite->terms, list)
861 free(term);
862 free(suite);
863 }
864 return cond;
865}
866
867/* Parse an ACL condition starting at <args>[0], relying on a list of already
868 * known ACLs passed in <known_acl>. The new condition is returned (or NULL in
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]869 * case of low memory). Supports multiple conditions separated by "or". If
870 * <err> is not NULL, it will be filled with a pointer to an error message in
871 * case of error, that the caller is responsible for freeing. The initial
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]872 * location must either be freeable or NULL. The list <al> serves as a list head
873 * for unresolved dependencies.
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]874 */
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]875struct acl_cond *parse_acl_cond(const char **args, struct list *known_acl,
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]876 enum acl_cond_pol pol, char **err, struct arg_list *al,
877 const char *file, int line)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]878{
879 __label__ out_return, out_free_suite, out_free_term;
Willy Tarreau74b98a82007-06-16 19:35:18 +0200[diff] [blame]880 int arg, neg;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]881 const char *word;
882 struct acl *cur_acl;
883 struct acl_term *cur_term;
884 struct acl_term_suite *cur_suite;
885 struct acl_cond *cond;
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]886 unsigned int suite_val;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]887
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]888 cond = calloc(1, sizeof(*cond));
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]889 if (cond == NULL) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]890 memprintf(err, "out of memory when parsing condition");
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]891 goto out_return;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]892 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]893
894 LIST_INIT(&cond->list);
895 LIST_INIT(&cond->suites);
896 cond->pol = pol;
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]897 cond->val = 0;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]898
899 cur_suite = NULL;
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]900 suite_val = ~0U;
Willy Tarreau74b98a82007-06-16 19:35:18 +0200[diff] [blame]901 neg = 0;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]902 for (arg = 0; *args[arg]; arg++) {
903 word = args[arg];
904
905 /* remove as many exclamation marks as we can */
906 while (*word == '!') {
907 neg = !neg;
908 word++;
909 }
910
911 /* an empty word is allowed because we cannot force the user to
912 * always think about not leaving exclamation marks alone.
913 */
914 if (!*word)
915 continue;
916
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]917 if (strcasecmp(word, "or") == 0 || strcmp(word, "||") == 0) {
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]918 /* new term suite */
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]919 cond->val |= suite_val;
920 suite_val = ~0U;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]921 cur_suite = NULL;
922 neg = 0;
923 continue;
924 }
925
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]926 if (strcmp(word, "{") == 0) {
927 /* we may have a complete ACL expression between two braces,
928 * find the last one.
929 */
930 int arg_end = arg + 1;
931 const char **args_new;
932
933 while (*args[arg_end] && strcmp(args[arg_end], "}") != 0)
934 arg_end++;
935
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]936 if (!*args[arg_end]) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]937 memprintf(err, "missing closing '}' in condition");
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]938 goto out_free_suite;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]939 }
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]940
941 args_new = calloc(1, (arg_end - arg + 1) * sizeof(*args_new));
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]942 if (!args_new) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]943 memprintf(err, "out of memory when parsing condition");
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]944 goto out_free_suite;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]945 }
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]946
Willy Tarreau2a56c5e2010-03-15 16:13:29 +0100[diff] [blame]947 args_new[0] = "";
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]948 memcpy(args_new + 1, args + arg + 1, (arg_end - arg) * sizeof(*args_new));
949 args_new[arg_end - arg] = "";
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]950 cur_acl = parse_acl(args_new, known_acl, err, al, file, line);
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]951 free(args_new);
952
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]953 if (!cur_acl) {
954 /* note that parse_acl() must have filled <err> here */
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]955 goto out_free_suite;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]956 }
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]957 arg = arg_end;
958 }
959 else {
960 /* search for <word> in the known ACL names. If we do not find
961 * it, let's look for it in the default ACLs, and if found, add
962 * it to the list of ACLs of this proxy. This makes it possible
963 * to override them.
964 */
965 cur_acl = find_acl_by_name(word, known_acl);
966 if (cur_acl == NULL) {
Thierry FOURNIER0d6ba512014-02-11 03:31:34 +0100[diff] [blame]967 cur_acl = find_acl_default(word, known_acl, err, al, file, line);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]968 if (cur_acl == NULL) {
969 /* note that find_acl_default() must have filled <err> here */
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]970 goto out_free_suite;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]971 }
Willy Tarreau95fa4692010-02-01 13:05:50 +0100[diff] [blame]972 }
Willy Tarreau16fbe822007-06-17 11:54:31 +0200[diff] [blame]973 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]974
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]975 cur_term = calloc(1, sizeof(*cur_term));
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]976 if (cur_term == NULL) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]977 memprintf(err, "out of memory when parsing condition");
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]978 goto out_free_suite;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]979 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]980
981 cur_term->acl = cur_acl;
982 cur_term->neg = neg;
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]983
984 /* Here it is a bit complex. The acl_term_suite is a conjunction
985 * of many terms. It may only be used if all of its terms are
986 * usable at the same time. So the suite's validity domain is an
987 * AND between all ACL keywords' ones. But, the global condition
988 * is valid if at least one term suite is OK. So it's an OR between
989 * all of their validity domains. We could emit a warning as soon
990 * as suite_val is null because it means that the last ACL is not
991 * compatible with the previous ones. Let's remain simple for now.
992 */
993 cond->use |= cur_acl->use;
994 suite_val &= cur_acl->val;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]995
996 if (!cur_suite) {
Vincent Bernat3c2f2f22016-04-03 13:48:42 +0200[diff] [blame]997 cur_suite = calloc(1, sizeof(*cur_suite));
Willy Tarreauf678b7f2013-01-24 00:25:39 +0100[diff] [blame]998 if (cur_suite == NULL) {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]999 memprintf(err, "out of memory when parsing condition");
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1000 goto out_free_term;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1001 }
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1002 LIST_INIT(&cur_suite->terms);
1003 LIST_ADDQ(&cond->suites, &cur_suite->list);
1004 }
1005 LIST_ADDQ(&cur_suite->terms, &cur_term->list);
Willy Tarreau74b98a82007-06-16 19:35:18 +0200[diff] [blame]1006 neg = 0;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1007 }
1008
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1009 cond->val |= suite_val;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1010 return cond;
1011
1012 out_free_term:
1013 free(cur_term);
1014 out_free_suite:
1015 prune_acl_cond(cond);
1016 free(cond);
1017 out_return:
1018 return NULL;
1019}
1020
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1021/* Builds an ACL condition starting at the if/unless keyword. The complete
1022 * condition is returned. NULL is returned in case of error or if the first
1023 * word is neither "if" nor "unless". It automatically sets the file name and
Willy Tarreau25320b22013-03-24 07:22:08 +0100[diff] [blame]1024 * the line number in the condition for better error reporting, and sets the
1025 * HTTP intiailization requirements in the proxy. If <err> is not NULL, it will
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1026 * be filled with a pointer to an error message in case of error, that the
1027 * caller is responsible for freeing. The initial location must either be
1028 * freeable or NULL.
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1029 */
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]1030struct acl_cond *build_acl_cond(const char *file, int line, struct list *known_acl,
1031 struct proxy *px, const char **args, char **err)
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1032{
Willy Tarreau0cba6072013-11-28 22:21:02 +0100[diff] [blame]1033 enum acl_cond_pol pol = ACL_COND_NONE;
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1034 struct acl_cond *cond = NULL;
1035
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1036 if (err)
1037 *err = NULL;
1038
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1039 if (!strcmp(*args, "if")) {
1040 pol = ACL_COND_IF;
1041 args++;
1042 }
1043 else if (!strcmp(*args, "unless")) {
1044 pol = ACL_COND_UNLESS;
1045 args++;
1046 }
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1047 else {
Willy Tarreaueb6cead2012-09-20 19:43:14 +0200[diff] [blame]1048 memprintf(err, "conditions must start with either 'if' or 'unless'");
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1049 return NULL;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1050 }
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1051
Christopher Faulet1b421ea2017-09-22 14:38:56 +0200[diff] [blame]1052 cond = parse_acl_cond(args, known_acl, pol, err, &px->conf.args, file, line);
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1053 if (!cond) {
1054 /* note that parse_acl_cond must have filled <err> here */
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1055 return NULL;
Willy Tarreaub7451bb2012-04-27 12:38:15 +0200[diff] [blame]1056 }
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1057
1058 cond->file = file;
1059 cond->line = line;
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1060 px->http_needed |= !!(cond->use & SMP_USE_HTTP_ANY);
Willy Tarreau2bbba412010-01-28 16:48:33 +0100[diff] [blame]1061 return cond;
1062}
1063
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1064/* Execute condition <cond> and return either ACL_TEST_FAIL, ACL_TEST_MISS or
1065 * ACL_TEST_PASS depending on the test results. ACL_TEST_MISS may only be
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]1066 * returned if <opt> does not contain SMP_OPT_FINAL, indicating that incomplete
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1067 * data is being examined. The function automatically sets SMP_OPT_ITERATE. This
1068 * function only computes the condition, it does not apply the polarity required
1069 * by IF/UNLESS, it's up to the caller to do this using something like this :
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1070 *
1071 * res = acl_pass(res);
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1072 * if (res == ACL_TEST_MISS)
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]1073 * return 0;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1074 * if (cond->pol == ACL_COND_UNLESS)
1075 * res = !res;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1076 */
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1077enum acl_test_res acl_exec_cond(struct acl_cond *cond, struct proxy *px, struct session *sess, struct stream *strm, unsigned int opt)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1078{
1079 __label__ fetch_next;
1080 struct acl_term_suite *suite;
1081 struct acl_term *term;
1082 struct acl_expr *expr;
1083 struct acl *acl;
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]1084 struct sample smp;
Willy Tarreau0cba6072013-11-28 22:21:02 +0100[diff] [blame]1085 enum acl_test_res acl_res, suite_res, cond_res;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1086
Willy Tarreau7a777ed2012-04-26 11:44:02 +0200[diff] [blame]1087 /* ACLs are iterated over all values, so let's always set the flag to
1088 * indicate this to the fetch functions.
1089 */
1090 opt |= SMP_OPT_ITERATE;
1091
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1092 /* We're doing a logical OR between conditions so we initialize to FAIL.
1093 * The MISS status is propagated down from the suites.
1094 */
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1095 cond_res = ACL_TEST_FAIL;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1096 list_for_each_entry(suite, &cond->suites, list) {
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1097 /* Evaluate condition suite <suite>. We stop at the first term
Willy Tarreau0cba6072013-11-28 22:21:02 +0100[diff] [blame]1098 * which returns ACL_TEST_FAIL. The MISS status is still propagated
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1099 * in case of uncertainty in the result.
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1100 */
1101
1102 /* we're doing a logical AND between terms, so we must set the
1103 * initial value to PASS.
1104 */
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1105 suite_res = ACL_TEST_PASS;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1106 list_for_each_entry(term, &suite->terms, list) {
1107 acl = term->acl;
1108
1109 /* FIXME: use cache !
1110 * check acl->cache_idx for this.
1111 */
1112
1113 /* ACL result not cached. Let's scan all the expressions
1114 * and use the first one to match.
1115 */
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1116 acl_res = ACL_TEST_FAIL;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1117 list_for_each_entry(expr, &acl->expr, list) {
Willy Tarreaud41f8d82007-06-10 10:06:18 +0200[diff] [blame]1118 /* we need to reset context and flags */
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]1119 memset(&smp, 0, sizeof(smp));
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1120 fetch_next:
Willy Tarreau192252e2015-04-04 01:47:55 +0200[diff] [blame]1121 if (!sample_process(px, sess, strm, opt, expr->smp, &smp)) {
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]1122 /* maybe we could not fetch because of missing data */
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]1123 if (smp.flags & SMP_F_MAY_CHANGE && !(opt & SMP_OPT_FINAL))
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1124 acl_res |= ACL_TEST_MISS;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1125 continue;
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]1126 }
Willy Tarreauc4262962010-05-10 23:42:40 +0200[diff] [blame]1127
Thierry FOURNIER1794fdf2014-01-17 15:25:13 +0100[diff] [blame]1128 acl_res |= pat2acl(pattern_exec_match(&expr->pat, &smp, 0));
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1129 /*
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1130 * OK now acl_res holds the result of this expression
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1131 * as one of ACL_TEST_FAIL, ACL_TEST_MISS or ACL_TEST_PASS.
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1132 *
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1133 * Then if (!MISS) we can cache the result, and put
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]1134 * (smp.flags & SMP_F_VOLATILE) in the cache flags.
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1135 *
1136 * FIXME: implement cache.
1137 *
1138 */
1139
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1140 /* we're ORing these terms, so a single PASS is enough */
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1141 if (acl_res == ACL_TEST_PASS)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1142 break;
1143
Willy Tarreau37406352012-04-23 16:16:37 +0200[diff] [blame]1144 if (smp.flags & SMP_F_NOT_LAST)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1145 goto fetch_next;
Willy Tarreaub6866442008-07-14 23:54:42 +0200[diff] [blame]1146
1147 /* sometimes we know the fetched data is subject to change
1148 * later and give another chance for a new match (eg: request
1149 * size, time, ...)
1150 */
Willy Tarreau32a6f2e2012-04-25 10:13:36 +0200[diff] [blame]1151 if (smp.flags & SMP_F_MAY_CHANGE && !(opt & SMP_OPT_FINAL))
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1152 acl_res |= ACL_TEST_MISS;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1153 }
1154 /*
1155 * Here we have the result of an ACL (cached or not).
1156 * ACLs are combined, negated or not, to form conditions.
1157 */
1158
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1159 if (term->neg)
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1160 acl_res = acl_neg(acl_res);
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1161
1162 suite_res &= acl_res;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1163
Willy Tarreau79c412b2013-10-30 19:30:32 +0100[diff] [blame]1164 /* we're ANDing these terms, so a single FAIL or MISS is enough */
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1165 if (suite_res != ACL_TEST_PASS)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1166 break;
1167 }
1168 cond_res |= suite_res;
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1169
1170 /* we're ORing these terms, so a single PASS is enough */
Thierry FOURNIERa65b3432013-11-28 18:22:00 +0100[diff] [blame]1171 if (cond_res == ACL_TEST_PASS)
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1172 break;
1173 }
Willy Tarreau11382812008-07-09 16:18:21 +0200[diff] [blame]1174 return cond_res;
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1175}
1176
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1177/* Returns a pointer to the first ACL conflicting with usage at place <where>
1178 * which is one of the SMP_VAL_* bits indicating a check place, or NULL if
1179 * no conflict is found. Only full conflicts are detected (ACL is not usable).
1180 * Use the next function to check for useless keywords.
Willy Tarreaudd64f8d2008-07-27 22:02:32 +0200[diff] [blame]1181 */
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1182const struct acl *acl_cond_conflicts(const struct acl_cond *cond, unsigned int where)
Willy Tarreaudd64f8d2008-07-27 22:02:32 +0200[diff] [blame]1183{
1184 struct acl_term_suite *suite;
1185 struct acl_term *term;
1186 struct acl *acl;
1187
1188 list_for_each_entry(suite, &cond->suites, list) {
1189 list_for_each_entry(term, &suite->terms, list) {
1190 acl = term->acl;
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1191 if (!(acl->val & where))
Willy Tarreaudd64f8d2008-07-27 22:02:32 +0200[diff] [blame]1192 return acl;
1193 }
1194 }
1195 return NULL;
1196}
1197
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1198/* Returns a pointer to the first ACL and its first keyword to conflict with
1199 * usage at place <where> which is one of the SMP_VAL_* bits indicating a check
1200 * place. Returns true if a conflict is found, with <acl> and <kw> set (if non
1201 * null), or false if not conflict is found. The first useless keyword is
1202 * returned.
1203 */
Willy Tarreau93fddf12013-03-31 22:59:32 +0200[diff] [blame]1204int acl_cond_kw_conflicts(const struct acl_cond *cond, unsigned int where, struct acl const **acl, char const **kw)
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1205{
1206 struct acl_term_suite *suite;
1207 struct acl_term *term;
1208 struct acl_expr *expr;
1209
1210 list_for_each_entry(suite, &cond->suites, list) {
1211 list_for_each_entry(term, &suite->terms, list) {
1212 list_for_each_entry(expr, &term->acl->expr, list) {
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]1213 if (!(expr->smp->fetch->val & where)) {
Willy Tarreaua91d0a52013-03-25 08:12:18 +0100[diff] [blame]1214 if (acl)
1215 *acl = term->acl;
1216 if (kw)
1217 *kw = expr->kw;
1218 return 1;
1219 }
1220 }
1221 }
1222 }
1223 return 0;
1224}
1225
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1226/*
1227 * Find targets for userlist and groups in acl. Function returns the number
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]1228 * of errors or OK if everything is fine. It must be called only once sample
1229 * fetch arguments have been resolved (after smp_resolve_args()).
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1230 */
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]1231int acl_find_targets(struct proxy *p)
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1232{
1233
1234 struct acl *acl;
1235 struct acl_expr *expr;
Thierry FOURNIER3ead5b92013-12-13 12:12:18 +0100[diff] [blame]1236 struct pattern_list *pattern;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1237 int cfgerr = 0;
Thierry FOURNIERc5959fd2014-01-20 14:29:33 +0100[diff] [blame]1238 struct pattern_expr_list *pexp;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1239
1240 list_for_each_entry(acl, &p->acl, list) {
1241 list_for_each_entry(expr, &acl->expr, list) {
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]1242 if (!strcmp(expr->kw, "http_auth_group")) {
1243 /* Note: the ARGT_USR argument may only have been resolved earlier
1244 * by smp_resolve_args().
1245 */
Thierry FOURNIER348971e2013-11-21 10:50:10 +0100[diff] [blame]1246 if (expr->smp->arg_p->unresolved) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1247 ha_alert("Internal bug in proxy %s: %sacl %s %s() makes use of unresolved userlist '%s'. Please report this.\n",
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200[diff] [blame]1248 p->id, *acl->name ? "" : "anonymous ", acl->name, expr->kw,
1249 expr->smp->arg_p->data.str.area);
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200[diff] [blame]1250 cfgerr++;
Willy Tarreau496aa012012-06-01 10:38:29 +0200[diff] [blame]1251 continue;
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1252 }
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1253
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]1254 if (LIST_ISEMPTY(&expr->pat.head)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1255 ha_alert("proxy %s: acl %s %s(): no groups specified.\n",
1256 p->id, acl->name, expr->kw);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1257 cfgerr++;
1258 continue;
1259 }
1260
Thierry FOURNIER9eec0a62014-01-22 18:38:02 +0100[diff] [blame]1261 /* For each pattern, check if the group exists. */
Thierry FOURNIERc5959fd2014-01-20 14:29:33 +0100[diff] [blame]1262 list_for_each_entry(pexp, &expr->pat.head, list) {
1263 if (LIST_ISEMPTY(&pexp->expr->patterns)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1264 ha_alert("proxy %s: acl %s %s(): no groups specified.\n",
1265 p->id, acl->name, expr->kw);
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1266 cfgerr++;
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]1267 continue;
1268 }
1269
Thierry FOURNIERc5959fd2014-01-20 14:29:33 +0100[diff] [blame]1270 list_for_each_entry(pattern, &pexp->expr->patterns, list) {
1271 /* this keyword only has one argument */
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]1272 if (!check_group(expr->smp->arg_p->data.usr, pattern->pat.ptr.str)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1273 ha_alert("proxy %s: acl %s %s(): invalid group '%s'.\n",
1274 p->id, acl->name, expr->kw, pattern->pat.ptr.str);
Thierry FOURNIER1e00d382014-02-11 11:31:40 +0100[diff] [blame]1275 cfgerr++;
1276 }
Krzysztof Piotr Oledzkif9423ae2010-01-29 19:26:18 +0100[diff] [blame]1277 }
1278 }
1279 }
1280 }
1281 }
1282
1283 return cfgerr;
1284}
Willy Tarreaudd64f8d2008-07-27 22:02:32 +0200[diff] [blame]1285
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]1286/* initializes ACLs by resolving the sample fetch names they rely upon.
1287 * Returns 0 on success, otherwise an error.
1288 */
1289int init_acl()
1290{
1291 int err = 0;
1292 int index;
1293 const char *name;
1294 struct acl_kw_list *kwl;
1295 struct sample_fetch *smp;
1296
1297 list_for_each_entry(kwl, &acl_keywords.list, list) {
1298 for (index = 0; kwl->kw[index].kw != NULL; index++) {
1299 name = kwl->kw[index].fetch_kw;
1300 if (!name)
1301 name = kwl->kw[index].kw;
1302
1303 smp = find_sample_fetch(name, strlen(name));
1304 if (!smp) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100[diff] [blame]1305 ha_alert("Critical internal error: ACL keyword '%s' relies on sample fetch '%s' which was not registered!\n",
1306 kwl->kw[index].kw, name);
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100[diff] [blame]1307 err++;
1308 continue;
1309 }
1310 kwl->kw[index].smp = smp;
1311 }
1312 }
1313 return err;
1314}
Willy Tarreaud4c33c82013-01-07 21:59:07 +0100[diff] [blame]1315
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1316/************************************************************************/
Willy Tarreaud4c33c82013-01-07 21:59:07 +0100[diff] [blame]1317/* All supported sample and ACL keywords must be declared here. */
1318/************************************************************************/
1319
1320/* Note: must not be declared <const> as its list will be overwritten.
Willy Tarreau61612d42012-04-19 18:42:05 +0200[diff] [blame]1321 * Please take care of keeping this list alphabetically sorted.
1322 */
Willy Tarreaudc13c112013-06-21 23:16:39 +0200[diff] [blame]1323static struct acl_kw_list acl_kws = {ILH, {
Willy Tarreaud4c33c82013-01-07 21:59:07 +0100[diff] [blame]1324 { /* END */ },
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1325}};
1326
Willy Tarreau0108d902018-11-25 19:14:37 +0100[diff] [blame]1327INITCALL1(STG_REGISTER, acl_register_keywords, &acl_kws);
Willy Tarreaua84d3742007-05-07 00:36:48 +0200[diff] [blame]1328
1329/*
1330 * Local variables:
1331 * c-indent-level: 8
1332 * c-basic-offset: 8
1333 * End:
1334 */