123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796 |
- /*-
- * Copyright 2016 Vsevolod Stakhov
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- #include "config.h"
- #include "libutil/multipattern.h"
- #include "libutil/str_util.h"
- #include "libcryptobox/cryptobox.h"
-
- #ifdef WITH_HYPERSCAN
- #include "logger.h"
- #include "unix-std.h"
- #include "hs.h"
- #endif
- #include "acism.h"
- #include "libutil/regexp.h"
- #include <stdalign.h>
-
- #define MAX_SCRATCH 4
-
- enum rspamd_hs_check_state {
- RSPAMD_HS_UNCHECKED = 0,
- RSPAMD_HS_SUPPORTED,
- RSPAMD_HS_UNSUPPORTED
- };
-
- static const char *hs_cache_dir = NULL;
- static enum rspamd_hs_check_state hs_suitable_cpu = RSPAMD_HS_UNCHECKED;
-
-
- struct RSPAMD_ALIGNED(64) rspamd_multipattern {
- #ifdef WITH_HYPERSCAN
- rspamd_cryptobox_hash_state_t hash_state;
- hs_database_t *db;
- hs_scratch_t *scratch[MAX_SCRATCH];
- GArray *hs_pats;
- GArray *hs_ids;
- GArray *hs_flags;
- guint scratch_used;
- #endif
- ac_trie_t *t;
- GArray *pats;
- GArray *res;
-
- gboolean compiled;
- guint cnt;
- enum rspamd_multipattern_flags flags;
- };
-
- static GQuark
- rspamd_multipattern_quark (void)
- {
- return g_quark_from_static_string ("multipattern");
- }
-
- static inline gboolean
- rspamd_hs_check (void)
- {
- #ifdef WITH_HYPERSCAN
- if (G_UNLIKELY (hs_suitable_cpu == RSPAMD_HS_UNCHECKED)) {
- if (hs_valid_platform () == HS_SUCCESS) {
- hs_suitable_cpu = RSPAMD_HS_SUPPORTED;
- }
- else {
- hs_suitable_cpu = RSPAMD_HS_UNSUPPORTED;
- }
- }
- #endif
-
- return hs_suitable_cpu == RSPAMD_HS_SUPPORTED;
- }
-
- void
- rspamd_multipattern_library_init (const gchar *cache_dir)
- {
- hs_cache_dir = cache_dir;
- #ifdef WITH_HYPERSCAN
- rspamd_hs_check ();
- #endif
- }
-
- #ifdef WITH_HYPERSCAN
- static gchar *
- rspamd_multipattern_escape_tld_hyperscan (const gchar *pattern, gsize slen,
- gsize *dst_len)
- {
- gsize len;
- const gchar *p, *prefix, *suffix;
- gchar *res;
-
- /*
- * We understand the following cases
- * 1) blah -> .blah\b
- * 2) *.blah -> ..*\\.blah\b|$
- * 3) ???
- */
-
- if (pattern[0] == '*') {
- p = strchr (pattern, '.');
-
- if (p == NULL) {
- /* XXX: bad */
- p = pattern;
- }
- else {
- p ++;
- }
-
- prefix = "\\.";
- len = slen + strlen (prefix);
- }
- else {
- prefix = "\\.";
- p = pattern;
- len = slen + strlen (prefix);
- }
-
- suffix = "(:?\\b|$)";
- len += strlen (suffix);
-
- res = g_malloc (len + 1);
- slen = rspamd_strlcpy (res, prefix, len + 1);
- slen += rspamd_strlcpy (res + slen, p, len + 1 - slen);
- slen += rspamd_strlcpy (res + slen, suffix, len + 1 - slen);
-
- *dst_len = slen;
-
- return res;
- }
-
- #endif
- static gchar *
- rspamd_multipattern_escape_tld_acism (const gchar *pattern, gsize len,
- gsize *dst_len)
- {
- gsize dlen, slen;
- const gchar *p, *prefix;
- gchar *res;
-
- /*
- * We understand the following cases
- * 1) blah -> \\.blah
- * 2) *.blah -> \\..*\\.blah
- * 3) ???
- */
- slen = len;
-
- if (pattern[0] == '*') {
- dlen = slen;
- p = memchr (pattern, '.', len);
-
- if (p == NULL) {
- /* XXX: bad */
- p = pattern;
- }
- else {
- p ++;
- }
-
- dlen -= p - pattern;
- prefix = ".";
- dlen ++;
- }
- else {
- dlen = slen + 1;
- prefix = ".";
- p = pattern;
- }
-
- res = g_malloc (dlen + 1);
- slen = strlen (prefix);
- memcpy (res, prefix, slen);
- rspamd_strlcpy (res + slen, p, dlen - slen + 1);
-
- *dst_len = dlen;
-
- return res;
- }
-
- /*
- * Escapes special characters from specific pattern
- */
- static gchar *
- rspamd_multipattern_pattern_filter (const gchar *pattern, gsize len,
- enum rspamd_multipattern_flags flags,
- gsize *dst_len)
- {
- gchar *ret = NULL;
- gint gl_flags = RSPAMD_REGEXP_ESCAPE_ASCII;
-
- if (flags & RSPAMD_MULTIPATTERN_UTF8) {
- gl_flags |= RSPAMD_REGEXP_ESCAPE_UTF;
- }
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- if (flags & RSPAMD_MULTIPATTERN_TLD) {
- gchar *tmp;
- gsize tlen;
- tmp = rspamd_multipattern_escape_tld_hyperscan (pattern, len, &tlen);
-
- ret = rspamd_str_regexp_escape (tmp, tlen, dst_len,
- gl_flags|RSPAMD_REGEXP_ESCAPE_RE);
- g_free (tmp);
- }
- else if (flags & RSPAMD_MULTIPATTERN_RE) {
- ret = rspamd_str_regexp_escape (pattern, len, dst_len, gl_flags |
- RSPAMD_REGEXP_ESCAPE_RE);
- }
- else if (flags & RSPAMD_MULTIPATTERN_GLOB) {
- ret = rspamd_str_regexp_escape (pattern, len, dst_len,
- gl_flags | RSPAMD_REGEXP_ESCAPE_GLOB);
- }
- else {
- ret = rspamd_str_regexp_escape (pattern, len, dst_len, gl_flags);
- }
-
- return ret;
- }
- #endif
-
- if (flags & RSPAMD_MULTIPATTERN_TLD) {
- ret = rspamd_multipattern_escape_tld_acism (pattern, len, dst_len);
- }
- else if (flags & RSPAMD_MULTIPATTERN_RE) {
- ret = rspamd_str_regexp_escape (pattern, len, dst_len, gl_flags |
- RSPAMD_REGEXP_ESCAPE_RE);
- }
- else if (flags & RSPAMD_MULTIPATTERN_GLOB) {
- ret = rspamd_str_regexp_escape (pattern, len, dst_len,
- gl_flags | RSPAMD_REGEXP_ESCAPE_GLOB);
- }
- else {
- ret = malloc (len + 1);
- *dst_len = rspamd_strlcpy (ret, pattern, len + 1);
- }
-
- return ret;
- }
-
- struct rspamd_multipattern *
- rspamd_multipattern_create (enum rspamd_multipattern_flags flags)
- {
- struct rspamd_multipattern *mp;
-
- /* Align due to blake2b state */
- (void) !posix_memalign((void **)&mp, RSPAMD_ALIGNOF(struct rspamd_multipattern),
- sizeof (*mp));
- g_assert (mp != NULL);
- memset (mp, 0, sizeof (*mp));
- mp->flags = flags;
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- mp->hs_pats = g_array_new (FALSE, TRUE, sizeof (gchar *));
- mp->hs_flags = g_array_new (FALSE, TRUE, sizeof (gint));
- mp->hs_ids = g_array_new (FALSE, TRUE, sizeof (gint));
- rspamd_cryptobox_hash_init (&mp->hash_state, NULL, 0);
-
- return mp;
- }
- #endif
-
- mp->pats = g_array_new (FALSE, TRUE, sizeof (ac_trie_pat_t));
-
- return mp;
- }
-
- struct rspamd_multipattern *
- rspamd_multipattern_create_sized (guint npatterns,
- enum rspamd_multipattern_flags flags)
- {
- struct rspamd_multipattern *mp;
-
- /* Align due to blake2b state */
- (void) !posix_memalign((void **)&mp, RSPAMD_ALIGNOF(struct rspamd_multipattern), sizeof (*mp));
- g_assert (mp != NULL);
- memset (mp, 0, sizeof (*mp));
- mp->flags = flags;
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- mp->hs_pats = g_array_sized_new (FALSE, TRUE, sizeof (gchar *), npatterns);
- mp->hs_flags = g_array_sized_new (FALSE, TRUE, sizeof (gint), npatterns);
- mp->hs_ids = g_array_sized_new (FALSE, TRUE, sizeof (gint), npatterns);
- rspamd_cryptobox_hash_init (&mp->hash_state, NULL, 0);
-
- return mp;
- }
- #endif
-
- mp->pats = g_array_sized_new (FALSE, TRUE, sizeof (ac_trie_pat_t), npatterns);
-
- return mp;
- }
-
- void
- rspamd_multipattern_add_pattern (struct rspamd_multipattern *mp,
- const gchar *pattern, gint flags)
- {
- g_assert (pattern != NULL);
-
- rspamd_multipattern_add_pattern_len (mp, pattern, strlen (pattern), flags);
- }
-
- void
- rspamd_multipattern_add_pattern_len (struct rspamd_multipattern *mp,
- const gchar *pattern, gsize patlen, gint flags)
- {
- gsize dlen;
-
- g_assert (pattern != NULL);
- g_assert (mp != NULL);
- g_assert (!mp->compiled);
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- gchar *np;
- gint fl = HS_FLAG_SOM_LEFTMOST;
- gint adjusted_flags = mp->flags | flags;
-
- if (adjusted_flags & RSPAMD_MULTIPATTERN_ICASE) {
- fl |= HS_FLAG_CASELESS;
- }
- if (adjusted_flags & RSPAMD_MULTIPATTERN_UTF8) {
- if (adjusted_flags & RSPAMD_MULTIPATTERN_TLD) {
- fl |= HS_FLAG_UTF8;
- }
- else {
- fl |= HS_FLAG_UTF8 | HS_FLAG_UCP;
- }
- }
- if (adjusted_flags & RSPAMD_MULTIPATTERN_DOTALL) {
- fl |= HS_FLAG_DOTALL;
- }
- if (adjusted_flags & RSPAMD_MULTIPATTERN_SINGLEMATCH) {
- fl |= HS_FLAG_SINGLEMATCH;
- fl &= ~HS_FLAG_SOM_LEFTMOST; /* According to hyperscan docs */
- }
- if (adjusted_flags & RSPAMD_MULTIPATTERN_NO_START) {
- fl &= ~HS_FLAG_SOM_LEFTMOST;
- }
-
- g_array_append_val (mp->hs_flags, fl);
- np = rspamd_multipattern_pattern_filter (pattern, patlen, flags, &dlen);
- g_array_append_val (mp->hs_pats, np);
- fl = mp->cnt;
- g_array_append_val (mp->hs_ids, fl);
- rspamd_cryptobox_hash_update (&mp->hash_state, np, dlen);
-
- mp->cnt ++;
-
- return;
- }
- #endif
- ac_trie_pat_t pat;
-
- pat.ptr = rspamd_multipattern_pattern_filter (pattern, patlen, flags, &dlen);
- pat.len = dlen;
-
- g_array_append_val (mp->pats, pat);
-
- mp->cnt ++;
- }
-
- struct rspamd_multipattern *
- rspamd_multipattern_create_full (const gchar **patterns,
- guint npatterns, enum rspamd_multipattern_flags flags)
- {
- struct rspamd_multipattern *mp;
- guint i;
-
- g_assert (npatterns > 0);
- g_assert (patterns != NULL);
-
- mp = rspamd_multipattern_create_sized (npatterns, flags);
-
- for (i = 0; i < npatterns; i++) {
- rspamd_multipattern_add_pattern (mp, patterns[i], flags);
- }
-
- return mp;
- }
-
- #ifdef WITH_HYPERSCAN
- static gboolean
- rspamd_multipattern_try_load_hs (struct rspamd_multipattern *mp,
- const guchar *hash)
- {
- gchar fp[PATH_MAX];
- gpointer map;
- gsize len;
-
- if (hs_cache_dir == NULL) {
- return FALSE;
- }
-
- rspamd_snprintf (fp, sizeof (fp), "%s/%*xs.hsmp", hs_cache_dir,
- (gint)rspamd_cryptobox_HASHBYTES / 2, hash);
-
- if ((map = rspamd_file_xmap (fp, PROT_READ, &len, TRUE)) != NULL) {
- if (hs_deserialize_database (map, len, &mp->db) == HS_SUCCESS) {
- munmap (map, len);
- return TRUE;
- }
-
- munmap (map, len);
- /* Remove stale file */
- (void)unlink (fp);
- }
-
- return FALSE;
- }
-
- static void
- rspamd_multipattern_try_save_hs (struct rspamd_multipattern *mp,
- const guchar *hash)
- {
- gchar fp[PATH_MAX], np[PATH_MAX];
- char *bytes = NULL;
- gsize len;
- gint fd;
-
- if (hs_cache_dir == NULL) {
- return;
- }
-
- rspamd_snprintf (fp, sizeof (fp), "%s/%*xs.hsmp.tmp", hs_cache_dir,
- (gint)rspamd_cryptobox_HASHBYTES / 2, hash);
-
- if ((fd = rspamd_file_xopen (fp, O_WRONLY | O_CREAT | O_EXCL, 00644, 0)) != -1) {
- if (hs_serialize_database (mp->db, &bytes, &len) == HS_SUCCESS) {
- if (write (fd, bytes, len) == -1) {
- msg_warn ("cannot write hyperscan cache to %s: %s",
- fp, strerror (errno));
- unlink (fp);
- free (bytes);
- }
- else {
- free (bytes);
- fsync (fd);
-
- rspamd_snprintf (np, sizeof (np), "%s/%*xs.hsmp", hs_cache_dir,
- (gint)rspamd_cryptobox_HASHBYTES / 2, hash);
-
- if (rename (fp, np) == -1) {
- msg_warn ("cannot rename hyperscan cache from %s to %s: %s",
- fp, np, strerror (errno));
- unlink (fp);
- }
- }
- }
- else {
- msg_warn ("cannot serialize hyperscan cache to %s: %s",
- fp, strerror (errno));
- unlink (fp);
- }
-
-
- close (fd);
- }
- }
- #endif
-
- gboolean
- rspamd_multipattern_compile (struct rspamd_multipattern *mp, GError **err)
- {
- g_assert (mp != NULL);
- g_assert (!mp->compiled);
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- guint i;
- hs_platform_info_t plt;
- hs_compile_error_t *hs_errors;
- guchar hash[rspamd_cryptobox_HASHBYTES];
-
- if (mp->cnt > 0) {
- g_assert (hs_populate_platform (&plt) == HS_SUCCESS);
- rspamd_cryptobox_hash_update (&mp->hash_state, (void *)&plt, sizeof (plt));
- rspamd_cryptobox_hash_final (&mp->hash_state, hash);
-
- if (!rspamd_multipattern_try_load_hs (mp, hash)) {
- if (hs_compile_multi ((const char *const *)mp->hs_pats->data,
- (const unsigned int *)mp->hs_flags->data,
- (const unsigned int *)mp->hs_ids->data,
- mp->cnt,
- HS_MODE_BLOCK,
- &plt,
- &mp->db,
- &hs_errors) != HS_SUCCESS) {
-
- g_set_error (err, rspamd_multipattern_quark (), EINVAL,
- "cannot create tree of regexp when processing '%s': %s",
- g_array_index (mp->hs_pats, char *, hs_errors->expression),
- hs_errors->message);
- hs_free_compile_error (hs_errors);
-
- return FALSE;
- }
- }
-
- rspamd_multipattern_try_save_hs (mp, hash);
-
- for (i = 0; i < MAX_SCRATCH; i ++) {
- g_assert (hs_alloc_scratch (mp->db, &mp->scratch[i]) == HS_SUCCESS);
- }
- }
-
- mp->compiled = TRUE;
-
- return TRUE;
- }
- #endif
-
- if (mp->cnt > 0) {
-
- if (mp->flags & (RSPAMD_MULTIPATTERN_GLOB|RSPAMD_MULTIPATTERN_RE)) {
- /* Fallback to pcre... */
- rspamd_regexp_t *re;
- mp->res = g_array_sized_new (FALSE, TRUE,
- sizeof (rspamd_regexp_t *), mp->cnt);
-
- for (guint i = 0; i < mp->cnt; i ++) {
- const ac_trie_pat_t *pat;
- const gchar *pat_flags = NULL;
-
- if (mp->flags & RSPAMD_MULTIPATTERN_UTF8) {
- pat_flags = "u";
- }
-
- pat = &g_array_index (mp->pats, ac_trie_pat_t, i);
- re = rspamd_regexp_new (pat->ptr, pat_flags, err);
-
- if (re == NULL) {
- return FALSE;
- }
-
- g_array_append_val (mp->res, re);
- }
- }
- else {
- mp->t = acism_create ((const ac_trie_pat_t *) mp->pats->data, mp->cnt);
- }
- }
-
- mp->compiled = TRUE;
-
- return TRUE;
- }
-
- struct rspamd_multipattern_cbdata {
- struct rspamd_multipattern *mp;
- const gchar *in;
- gsize len;
- rspamd_multipattern_cb_t cb;
- gpointer ud;
- guint nfound;
- gint ret;
- };
-
- #ifdef WITH_HYPERSCAN
- static gint
- rspamd_multipattern_hs_cb (unsigned int id,
- unsigned long long from,
- unsigned long long to,
- unsigned int flags,
- void *ud)
- {
- struct rspamd_multipattern_cbdata *cbd = ud;
- gint ret = 0;
-
- if (to > 0) {
-
- if (from == HS_OFFSET_PAST_HORIZON) {
- from = 0;
- }
-
- ret = cbd->cb (cbd->mp, id, from, to, cbd->in, cbd->len, cbd->ud);
-
- cbd->nfound ++;
- cbd->ret = ret;
- }
-
- return ret;
- }
- #endif
-
- static gint
- rspamd_multipattern_acism_cb (int strnum, int textpos, void *context)
- {
- struct rspamd_multipattern_cbdata *cbd = context;
- gint ret;
- ac_trie_pat_t pat;
-
- pat = g_array_index (cbd->mp->pats, ac_trie_pat_t, strnum);
- ret = cbd->cb (cbd->mp, strnum, textpos - pat.len,
- textpos, cbd->in, cbd->len, cbd->ud);
-
- cbd->nfound ++;
- cbd->ret = ret;
-
- return ret;
- }
-
- gint
- rspamd_multipattern_lookup (struct rspamd_multipattern *mp,
- const gchar *in, gsize len, rspamd_multipattern_cb_t cb,
- gpointer ud, guint *pnfound)
- {
- struct rspamd_multipattern_cbdata cbd;
- gint ret = 0;
-
- g_assert (mp != NULL);
-
- if (mp->cnt == 0 || !mp->compiled || len == 0) {
- return 0;
- }
-
- cbd.mp = mp;
- cbd.in = in;
- cbd.len = len;
- cbd.cb = cb;
- cbd.ud = ud;
- cbd.nfound = 0;
- cbd.ret = 0;
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- hs_scratch_t *scr = NULL;
- guint i;
-
- for (i = 0; i < MAX_SCRATCH; i ++) {
- if (!(mp->scratch_used & (1 << i))) {
- mp->scratch_used |= (1 << i);
- scr = mp->scratch[i];
- break;
- }
- }
-
- g_assert (scr != NULL);
-
- ret = hs_scan (mp->db, in, len, 0, scr,
- rspamd_multipattern_hs_cb, &cbd);
-
- mp->scratch_used &= ~(1 << i);
-
- if (ret == HS_SUCCESS) {
- ret = 0;
- }
- else if (ret == HS_SCAN_TERMINATED) {
- ret = cbd.ret;
- }
-
- if (pnfound) {
- *pnfound = cbd.nfound;
- }
-
- return ret;
- }
- #endif
-
- gint state = 0;
-
- if (mp->flags & (RSPAMD_MULTIPATTERN_GLOB|RSPAMD_MULTIPATTERN_RE)) {
- /* Terribly inefficient, but who cares - just use hyperscan */
- for (guint i = 0; i < mp->cnt; i ++) {
- rspamd_regexp_t *re = g_array_index (mp->res, rspamd_regexp_t *, i);
- const gchar *start = NULL, *end = NULL;
-
- while (rspamd_regexp_search (re,
- in,
- len,
- &start,
- &end,
- TRUE,
- NULL)) {
- if (rspamd_multipattern_acism_cb (i, end - in, &cbd)) {
- goto out;
- }
- }
- }
- out:
- ret = cbd.ret;
-
- if (pnfound) {
- *pnfound = cbd.nfound;
- }
- }
- else {
- /* Plain trie */
- ret = acism_lookup (mp->t, in, len, rspamd_multipattern_acism_cb, &cbd,
- &state, mp->flags & RSPAMD_MULTIPATTERN_ICASE);
-
- if (pnfound) {
- *pnfound = cbd.nfound;
- }
- }
-
- return ret;
- }
-
-
- void
- rspamd_multipattern_destroy (struct rspamd_multipattern *mp)
- {
- guint i;
-
- if (mp) {
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- gchar *p;
-
- if (mp->compiled && mp->cnt > 0) {
- for (i = 0; i < MAX_SCRATCH; i ++) {
- hs_free_scratch (mp->scratch[i]);
- }
-
- hs_free_database (mp->db);
- }
-
- for (i = 0; i < mp->cnt; i ++) {
- p = g_array_index (mp->hs_pats, gchar *, i);
- g_free (p);
- }
-
- g_array_free (mp->hs_pats, TRUE);
- g_array_free (mp->hs_ids, TRUE);
- g_array_free (mp->hs_flags, TRUE);
- free (mp); /* Due to posix_memalign */
-
- return;
- }
- #endif
- ac_trie_pat_t pat;
-
- if (mp->compiled && mp->cnt > 0) {
- acism_destroy (mp->t);
- }
-
- for (i = 0; i < mp->cnt; i ++) {
- pat = g_array_index (mp->pats, ac_trie_pat_t, i);
- g_free ((gchar *)pat.ptr);
- }
-
- g_array_free (mp->pats, TRUE);
-
- g_free (mp);
- }
- }
-
- const gchar*
- rspamd_multipattern_get_pattern (struct rspamd_multipattern *mp,
- guint index)
- {
- g_assert (mp != NULL);
- g_assert (index < mp->cnt);
-
- #ifdef WITH_HYPERSCAN
- if (rspamd_hs_check ()) {
- return g_array_index (mp->hs_pats, gchar *, index);
- }
- #endif
-
- ac_trie_pat_t pat;
-
- pat = g_array_index (mp->pats, ac_trie_pat_t, index);
-
- return pat.ptr;
- }
-
- guint
- rspamd_multipattern_get_npatterns (struct rspamd_multipattern *mp)
- {
- g_assert (mp != NULL);
-
- return mp->cnt;
- }
-
- gboolean
- rspamd_multipattern_has_hyperscan (void)
- {
- return rspamd_hs_check ();
- }
|