diff options
Diffstat (limited to 'src/analysis/scan')
-rw-r--r-- | src/analysis/scan/context-int.h | 24 | ||||
-rw-r--r-- | src/analysis/scan/context.c | 168 | ||||
-rw-r--r-- | src/analysis/scan/context.h | 7 | ||||
-rw-r--r-- | src/analysis/scan/patterns/backends/acism.c | 15 | ||||
-rw-r--r-- | src/analysis/scan/patterns/backends/hyperscan.c | 427 | ||||
-rw-r--r-- | src/analysis/scan/patterns/tokens/node.h | 1 | ||||
-rw-r--r-- | src/analysis/scan/patterns/tokens/nodes/any.c | 10 | ||||
-rw-r--r-- | src/analysis/scan/patterns/tokens/nodes/masked.c | 169 | ||||
-rw-r--r-- | src/analysis/scan/patterns/tokens/nodes/plain.c | 163 |
9 files changed, 817 insertions, 167 deletions
diff --git a/src/analysis/scan/context-int.h b/src/analysis/scan/context-int.h index efbd24e..6135201 100644 --- a/src/analysis/scan/context-int.h +++ b/src/analysis/scan/context-int.h @@ -30,8 +30,23 @@ #include "expr.h" #include "../../common/fnv1a.h" +#include "../../glibext/umemslice.h" +//#define __USE_TABLE_FOR_MATCHES + + +#ifndef __USE_TABLE_FOR_MATCHES + +/* Lien entre un motif et ses correspondances */ +typedef struct _matched_pattern_t +{ + const GSearchPattern *pattern; /* Motif recherché */ + GScanMatches *matches; /* Correspondances associées */ + +} matched_pattern_t; + +#endif /* Condition définissant une règle de correspondance */ typedef struct _rule_condition_t @@ -54,10 +69,17 @@ struct _GScanContext GBinContent *content; /* Contenu binaire traité */ bool scan_done; /* Phase d'analyse terminée ? */ - GUMemSlice **match_storages; /* Suivi de correspondances */ + GUMemSlice *match_allocator; /* Suivi de correspondances */ + match_area_t **match_storages; /* Suivi de correspondances */ size_t storages_count; /* Quantité de ces suivis */ +#ifdef __USE_TABLE_FOR_MATCHES GHashTable *full_trackers; /* Correspondances confirmées */ +#else + matched_pattern_t *full_trackers; /* Correspondances confirmées */ + size_t full_allocated; /* Quantité d'éléments alloués */ + size_t full_count; /* Quantité de correspondances */ +#endif bool global; /* Validation globale */ diff --git a/src/analysis/scan/context.c b/src/analysis/scan/context.c index 9a0e9ac..7929f9c 100644 --- a/src/analysis/scan/context.c +++ b/src/analysis/scan/context.c @@ -53,6 +53,13 @@ static void g_scan_context_dispose(GScanContext *); /* Procède à la libération totale de la mémoire. */ static void g_scan_context_finalize(GScanContext *); +#ifndef __USE_TABLE_FOR_MATCHES + +/* Compare un lien entre motif et correspondances avec un autre. */ +static int compare_matched_pattern(const matched_pattern_t *, const matched_pattern_t *); + +#endif + /* ---------------------------------------------------------------------------------- */ @@ -107,10 +114,17 @@ static void g_scan_context_init(GScanContext *context) context->content = NULL; context->scan_done = false; + context->match_allocator = g_umem_slice_new(sizeof(match_area_t)); context->match_storages = NULL; context->storages_count = 0; - context->full_trackers = g_hash_table_new_full(NULL, NULL, g_object_unref, g_object_unref); +#ifdef __USE_TABLE_FOR_MATCHES + context->full_trackers = g_hash_table_new_full(NULL, NULL, NULL/*g_object_unref*/, g_object_unref); +#else + context->full_trackers = NULL; + context->full_allocated = 0; + context->full_count = 0; +#endif context->global = true; @@ -134,19 +148,38 @@ static void g_scan_context_init(GScanContext *context) static void g_scan_context_dispose(GScanContext *context) { - size_t i; /* Boucle de parcours */ +#ifndef __USE_TABLE_FOR_MATCHES + matched_pattern_t *iter; /* Boucle de parcours #1 */ + matched_pattern_t *max; /* Borne de fin de parcours */ +#endif + size_t i; /* Boucle de parcours #2 */ g_clear_object(&context->options); g_clear_object(&context->content); - for (i = 0; i < context->storages_count; i++) - g_clear_object(&context->match_storages[i]); + g_clear_object(&context->match_allocator); if (context->full_trackers != NULL) { +#ifdef __USE_TABLE_FOR_MATCHES + g_hash_table_destroy(context->full_trackers); context->full_trackers = NULL; + +#else + + iter = context->full_trackers; + max = iter + context->full_count; + + for (; iter < max; iter++) + g_object_unref(G_OBJECT(iter->matches)); + + free(context->full_trackers); + context->full_trackers = NULL; + +#endif + } for (i = 0; i < context->cond_count; i++) @@ -257,20 +290,15 @@ GScanOptions *g_scan_context_get_options(const GScanContext *context) void g_scan_context_set_content(GScanContext *context, GBinContent *content, size_t ids_count) { - size_t i; /* Boucle de parcours */ - g_clear_object(&context->content); context->content = content; g_object_ref(G_OBJECT(content)); - context->match_storages = calloc(ids_count, sizeof(GUMemSlice *)); + context->match_storages = calloc(ids_count, sizeof(match_area_t *)); context->storages_count = ids_count; - for (i = 0; i < ids_count; i++) - context->match_storages[i] = g_umem_slice_new(sizeof(match_area_t)); - } @@ -344,25 +372,26 @@ void g_scan_context_mark_scan_as_done(GScanContext *context) /****************************************************************************** * * * Paramètres : context = instance à mettre à jour. * -* count = nombre d'allocateurs en place. [OUT] * +* id = identifiant du motif trouvé. * +* end = position finale d'une correspondance partielle. * * * -* Description : Fournit la liste des allocateurs mémorisant des emplacements.* +* Description : Retourne tous les correspondances partielles notées. * * * -* Retour : Liste des allocateurs assurant un suivi des correspondances. * +* Retour : Liste interne des localisations conservées. * * * * Remarques : - * * * ******************************************************************************/ -GUMemSlice **g_scan_context_get_match_storages(GScanContext *context, size_t *count) +void g_scan_context_store_atom_match_end(GScanContext *context, patid_t id, phys_t end) { - GUMemSlice **result; /* Allocateur à renvoyer */ + match_area_t *new; /* Nouvel enregistrement */ - result = context->match_storages; + new = g_umem_slice_alloc(context->match_allocator); - *count = context->storages_count; + new->end = end + 1; - return result; + add_tail_match_area(new, &context->match_storages[id]); } @@ -380,18 +409,46 @@ GUMemSlice **g_scan_context_get_match_storages(GScanContext *context, size_t *co * * ******************************************************************************/ -GUMemSlice *g_scan_context_get_atom_matches(const GScanContext *context, patid_t id) +match_area_t *g_scan_context_get_atom_matches(const GScanContext *context, patid_t id) { - GUMemSlice *result; /* Liste constituée à renvoyer */ + match_area_t *result; /* Liste constituée à renvoyer */ result = context->match_storages[id]; - g_object_ref(G_OBJECT(result)); + return result; + +} + + +#ifndef __USE_TABLE_FOR_MATCHES + +/****************************************************************************** +* * +* Paramètres : a = premier lien motif/correspondances à comparer. * +* b = second lien motif/correspondances à comparer. * +* * +* Description : Compare un lien entre motif et correspondances avec un autre.* +* * +* Retour : Bilan de la comparaison. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static int compare_matched_pattern(const matched_pattern_t *a, const matched_pattern_t *b) +{ + int result; /* Bilan à renvoyer */ + + assert(sizeof(unsigned long) == sizeof(void *)); + + result = sort_unsigned_long((unsigned long)a->pattern, (unsigned long)b->pattern); return result; } +#endif + /****************************************************************************** * * @@ -412,8 +469,9 @@ void g_scan_context_register_full_matches(GScanContext *context, GSearchPattern #ifndef NDEBUG GSearchPattern *matches_pattern; /* Clef d'un suivi */ #endif - - assert(!g_hash_table_contains(context->full_trackers, pattern)); +#ifndef __USE_TABLE_FOR_MATCHES + matched_pattern_t new; /* Nouvel enregistrement */ +#endif #ifndef NDEBUG @@ -425,11 +483,28 @@ void g_scan_context_register_full_matches(GScanContext *context, GSearchPattern #endif - g_object_ref(G_OBJECT(pattern)); +#ifdef __USE_TABLE_FOR_MATCHES + + assert(!g_hash_table_contains(context->full_trackers, pattern)); + + //g_object_ref(G_OBJECT(pattern)); /* TODO : REMME */ g_object_ref(G_OBJECT(matches)); g_hash_table_insert(context->full_trackers, pattern, matches); +#else + + new.pattern = pattern; + new.matches = matches; + + g_object_ref(G_OBJECT(matches)); + + context->full_trackers = qinsert_managed(context->full_trackers, &context->full_count, &context->full_allocated, + sizeof(matched_pattern_t), (__compar_fn_t)compare_matched_pattern, + &new); + +#endif + g_scan_matches_attach(matches, context, pattern); } @@ -451,12 +526,36 @@ void g_scan_context_register_full_matches(GScanContext *context, GSearchPattern GScanMatches *g_scan_context_get_full_matches(const GScanContext *context, const GSearchPattern *pattern) { GScanMatches *result; /* Correspondance à renvoyer */ +#ifndef __USE_TABLE_FOR_MATCHES + matched_pattern_t target; /* Lien ciblé */ + matched_pattern_t *found; /* Lien trouvé */ +#endif + +#ifdef __USE_TABLE_FOR_MATCHES result = g_hash_table_lookup(context->full_trackers, pattern); if (result != NULL) g_object_ref(G_OBJECT(result)); +#else + + target.pattern = pattern; + + found = bsearch(&target, context->full_trackers, context->full_count, + sizeof(matched_pattern_t), (__compar_fn_t)compare_matched_pattern); + + if (found == NULL) + result = NULL; + + else + { + result = found->matches; + g_object_ref(G_OBJECT(result)); + } + +#endif + return result; } @@ -478,7 +577,14 @@ GScanMatches *g_scan_context_get_full_matches(const GScanContext *context, const size_t g_scan_context_count_full_matches(const GScanContext *context, const GSearchPattern *pattern) { size_t result; /* Quantité à retourner */ +#ifdef __USE_TABLE_FOR_MATCHES GScanMatches *matches; /* Ensemble de Correspondances */ +#else + matched_pattern_t target; /* Lien ciblé */ + matched_pattern_t *found; /* Lien trouvé */ +#endif + +#ifdef __USE_TABLE_FOR_MATCHES matches = g_hash_table_lookup(context->full_trackers, pattern); @@ -487,6 +593,20 @@ size_t g_scan_context_count_full_matches(const GScanContext *context, const GSea else result = 0; +#else + + target.pattern = pattern; + + found = bsearch(&target, context->full_trackers, context->full_count, + sizeof(matched_pattern_t), (__compar_fn_t)compare_matched_pattern); + + if (found == NULL) + result = 0; + else + result = g_scan_matches_count(found->matches); + +#endif + return result; } diff --git a/src/analysis/scan/context.h b/src/analysis/scan/context.h index 75190ce..c3b979d 100644 --- a/src/analysis/scan/context.h +++ b/src/analysis/scan/context.h @@ -33,7 +33,6 @@ #include "matches/area.h" #include "patterns/patid.h" #include "../content.h" -#include "../../glibext/umemslice.h" @@ -77,11 +76,11 @@ bool g_scan_context_is_scan_done(const GScanContext *); /* Note que la phase d'analyse de contenu est terminée. */ void g_scan_context_mark_scan_as_done(GScanContext *); -/* Fournit la liste des allocateurs mémorisant des emplacements. */ -GUMemSlice **g_scan_context_get_match_storages(GScanContext *, size_t *); +/* Retourne tous les correspondances partielles notées. */ +void g_scan_context_store_atom_match_end(GScanContext *, patid_t, phys_t); /* Retourne tous les correspondances partielles notées. */ -GUMemSlice *g_scan_context_get_atom_matches(const GScanContext *, patid_t); +match_area_t *g_scan_context_get_atom_matches(const GScanContext *, patid_t); /* Enregistre toutes les correspondances établies pour un motif. */ void g_scan_context_register_full_matches(GScanContext *, GSearchPattern *, GScanMatches *); diff --git a/src/analysis/scan/patterns/backends/acism.c b/src/analysis/scan/patterns/backends/acism.c index 3f742fd..5037405 100644 --- a/src/analysis/scan/patterns/backends/acism.c +++ b/src/analysis/scan/patterns/backends/acism.c @@ -1326,7 +1326,6 @@ static void g_acism_backend_run_scan(const GAcismBackend *backend, GScanContext phys_t dlen; /* Quantité de données */ vmpa2t pos; /* Point de départ ciblé */ const bin_t *data; /* Données à analyser */ - GUMemSlice **matches; /* Zones d'enregistrements */ #ifdef __USE_BYTE_FREQ acism_code_t codes_for_bytes[256]; /* Copie des codes d'accès */ #endif @@ -1350,8 +1349,6 @@ static void g_acism_backend_run_scan(const GAcismBackend *backend, GScanContext g_binary_content_compute_start_pos(content, &pos); data = g_binary_content_get_raw_access(content, &pos, dlen); - matches = g_scan_context_get_match_storages(context, (size_t []){ 0 }); - /* Suivi via l'arborescence aplatie */ #ifdef __USE_BYTE_FREQ @@ -1401,14 +1398,16 @@ static void g_acism_backend_run_scan(const GAcismBackend *backend, GScanContext k = coverages[next * 2 + SOURCE_COVERAGE_START]; if (next_state.single_source) - g_umem_slice_put_uint64(matches[k], i - next_state.atom_size); + g_scan_context_store_atom_match_end(context, k, i); + //g_umem_slice_put_uint64(matches[0/*k*/], i - next_state.atom_size); else { final_k = coverages[next * 2 + SOURCE_COVERAGE_END]; for (; k < final_k; k++) - g_umem_slice_put_uint64(matches[k], i - next_state.atom_size); + g_scan_context_store_atom_match_end(context, k, i); + //g_umem_slice_put_uint64(matches[0/*k*/], i - next_state.atom_size); } @@ -1429,14 +1428,16 @@ static void g_acism_backend_run_scan(const GAcismBackend *backend, GScanContext k = coverages[test_state.index * 2 + SOURCE_COVERAGE_START]; if (sub_state.single_source) - g_umem_slice_put_uint64(matches[k], i - sub_state.atom_size); + g_scan_context_store_atom_match_end(context, k, i); + //g_umem_slice_put_uint64(matches[0/*k*/], i - sub_state.atom_size); else { final_k = coverages[test_state.index * 2 + SOURCE_COVERAGE_END]; for (; k < final_k; k++) - g_umem_slice_put_uint64(matches[k], i - sub_state.atom_size); + g_scan_context_store_atom_match_end(context, k, i); + //g_umem_slice_put_uint64(matches[0/*k*/], i - sub_state.atom_size); } diff --git a/src/analysis/scan/patterns/backends/hyperscan.c b/src/analysis/scan/patterns/backends/hyperscan.c index 5d535e3..40a7372 100644 --- a/src/analysis/scan/patterns/backends/hyperscan.c +++ b/src/analysis/scan/patterns/backends/hyperscan.c @@ -33,6 +33,7 @@ #include "hyperscan-int.h" #include "../../../../core/logs.h" +#include "../../../../glibext/umemslice.h" /* REMME */ @@ -56,6 +57,345 @@ static void g_hyperscan_backend_finalize(GHyperscanBackend *); /* --------------------- IMPLEMENTATION DES FONCTIONS DE CLASSE --------------------- */ +/** + * for i in range(int(8192 / 25) + 1): + * print(','.join([ '% 5u' % (i * 25 + k) for k in range(25) ]) + ',') + */ +static const unsigned int __cached_ids[8200] = { + + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, + 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, + 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, + 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, + 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, + 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, + 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, + 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, + 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, + 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 270, 271, 272, 273, 274, + 275, 276, 277, 278, 279, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, + 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, + 325, 326, 327, 328, 329, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, + 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, + 375, 376, 377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387, 388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398, 399, + 400, 401, 402, 403, 404, 405, 406, 407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 419, 420, 421, 422, 423, 424, + 425, 426, 427, 428, 429, 430, 431, 432, 433, 434, 435, 436, 437, 438, 439, 440, 441, 442, 443, 444, 445, 446, 447, 448, 449, + 450, 451, 452, 453, 454, 455, 456, 457, 458, 459, 460, 461, 462, 463, 464, 465, 466, 467, 468, 469, 470, 471, 472, 473, 474, + 475, 476, 477, 478, 479, 480, 481, 482, 483, 484, 485, 486, 487, 488, 489, 490, 491, 492, 493, 494, 495, 496, 497, 498, 499, + 500, 501, 502, 503, 504, 505, 506, 507, 508, 509, 510, 511, 512, 513, 514, 515, 516, 517, 518, 519, 520, 521, 522, 523, 524, + 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, + 550, 551, 552, 553, 554, 555, 556, 557, 558, 559, 560, 561, 562, 563, 564, 565, 566, 567, 568, 569, 570, 571, 572, 573, 574, + 575, 576, 577, 578, 579, 580, 581, 582, 583, 584, 585, 586, 587, 588, 589, 590, 591, 592, 593, 594, 595, 596, 597, 598, 599, + 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 620, 621, 622, 623, 624, + 625, 626, 627, 628, 629, 630, 631, 632, 633, 634, 635, 636, 637, 638, 639, 640, 641, 642, 643, 644, 645, 646, 647, 648, 649, + 650, 651, 652, 653, 654, 655, 656, 657, 658, 659, 660, 661, 662, 663, 664, 665, 666, 667, 668, 669, 670, 671, 672, 673, 674, + 675, 676, 677, 678, 679, 680, 681, 682, 683, 684, 685, 686, 687, 688, 689, 690, 691, 692, 693, 694, 695, 696, 697, 698, 699, + 700, 701, 702, 703, 704, 705, 706, 707, 708, 709, 710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 720, 721, 722, 723, 724, + 725, 726, 727, 728, 729, 730, 731, 732, 733, 734, 735, 736, 737, 738, 739, 740, 741, 742, 743, 744, 745, 746, 747, 748, 749, + 750, 751, 752, 753, 754, 755, 756, 757, 758, 759, 760, 761, 762, 763, 764, 765, 766, 767, 768, 769, 770, 771, 772, 773, 774, + 775, 776, 777, 778, 779, 780, 781, 782, 783, 784, 785, 786, 787, 788, 789, 790, 791, 792, 793, 794, 795, 796, 797, 798, 799, + 800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 812, 813, 814, 815, 816, 817, 818, 819, 820, 821, 822, 823, 824, + 825, 826, 827, 828, 829, 830, 831, 832, 833, 834, 835, 836, 837, 838, 839, 840, 841, 842, 843, 844, 845, 846, 847, 848, 849, + 850, 851, 852, 853, 854, 855, 856, 857, 858, 859, 860, 861, 862, 863, 864, 865, 866, 867, 868, 869, 870, 871, 872, 873, 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8111, 8112, 8113, 8114, 8115, 8116, 8117, 8118, 8119, 8120, 8121, 8122, 8123, 8124, + 8125, 8126, 8127, 8128, 8129, 8130, 8131, 8132, 8133, 8134, 8135, 8136, 8137, 8138, 8139, 8140, 8141, 8142, 8143, 8144, 8145, 8146, 8147, 8148, 8149, + 8150, 8151, 8152, 8153, 8154, 8155, 8156, 8157, 8158, 8159, 8160, 8161, 8162, 8163, 8164, 8165, 8166, 8167, 8168, 8169, 8170, 8171, 8172, 8173, 8174, + 8175, 8176, 8177, 8178, 8179, 8180, 8181, 8182, 8183, 8184, 8185, 8186, 8187, 8188, 8189, 8190, 8191, 8192, 8193, 8194, 8195, 8196, 8197, 8198, 8199, + +}; + + + /* Indique la taille maximale des suites d'octets recherchées. */ size_t g_hyperscan_backend_get_atom_max_size(const GHyperscanBackend *); @@ -87,7 +427,7 @@ typedef struct _hyperscan_context_t } hyperscan_context_t; /* Prend note d'une correspondance trouvée par Hyperscan. */ -static int handle_hyperscan_match_event(unsigned int, unsigned long long, unsigned long long, unsigned int, const hyperscan_context_t *); +static int handle_hyperscan_match_event(unsigned int, unsigned long long, unsigned long long, unsigned int, GScanContext *context/*const hyperscan_context_t *context*/); /* Parcours un contenu binaire à la recherche de motifs. */ static void g_hyperscan_backend_run_scan(const GHyperscanBackend *, GScanContext *); @@ -297,6 +637,9 @@ static bool g_hyperscan_backend_enroll_plain_pattern(GHyperscanBackend *backend, /*Recherche d'un motif déjà sollicité */ + i = backend->used; + + /* for (i = 0; i < backend->used; i++) { if (backend->lengths[i] != len) @@ -315,6 +658,7 @@ static bool g_hyperscan_backend_enroll_plain_pattern(GHyperscanBackend *backend, } } + */ /* Introduction d'un nouveau motif au besoin */ @@ -323,7 +667,7 @@ static bool g_hyperscan_backend_enroll_plain_pattern(GHyperscanBackend *backend, if (backend->used == backend->allocated) { if (backend->allocated == 0) - backend->allocated = 64; + backend->allocated = 6400; else backend->allocated *= 2; @@ -361,6 +705,9 @@ static bool g_hyperscan_backend_enroll_plain_pattern(GHyperscanBackend *backend, * * ******************************************************************************/ +#include <fcntl.h> +#include "../../../../common/io.h" + static bool g_hyperscan_backend_warm_up(GHyperscanBackend *backend) { bool result; /* Bilan à retourner */ @@ -388,17 +735,27 @@ static bool g_hyperscan_backend_warm_up(GHyperscanBackend *backend) /* Enregistrement des expressions à prendre en compte */ +#if 0 backend->lit_ids = malloc(backend->used * sizeof(unsigned)); for (i = 0; i < backend->used; i++) backend->lit_ids[i] = i; +#else + + backend->lit_ids = __cached_ids; + +#endif + + //hs_populate_platform(&platform); //platform.tune = 1; //platform.cpu_features = HS_CPU_FEATURES_AVX512; +#if 0 + ret = hs_compile_lit_multi((const char *const *)backend->atoms, NULL, backend->lit_ids, backend->lengths, backend->used, HS_MODE_BLOCK, NULL, &backend->database, &error); @@ -414,6 +771,52 @@ static bool g_hyperscan_backend_warm_up(GHyperscanBackend *backend) goto exit; } + do + { + char *bytes; + size_t length; + int fd; + + ret = hs_serialize_database(backend->database, &bytes, &length); + printf("ret: %d -vs- %d\n", ret, HS_SUCCESS); + + fd = open("/tmp/compiled.bin", O_WRONLY | O_CREAT | O_TRUNC, 0600); + + safe_write(fd, bytes, length); + + close(fd); + + } + while (0); + + +#else + + char *bytes; + size_t length; + bool status; + int fd; + + length = 674216; + bytes = malloc(length); + + fd = open("/tmp/compiled.bin", O_RDONLY); + + status = safe_read(fd, bytes, length); + + close(fd); + + //printf("status: %d\n", status); + + ret = hs_deserialize_database(bytes, length, &backend->database); + //printf("ret: %d -vs- %d\n", ret, HS_SUCCESS); + + + +#endif + + + #if 0 do { @@ -529,8 +932,15 @@ static size_t g_hyperscan_backend_count_plain_pattern_ids(const GHyperscanBacken * * ******************************************************************************/ -static int handle_hyperscan_match_event(unsigned int id, unsigned long long from, unsigned long long to, unsigned int flags, const hyperscan_context_t *context) +static int handle_hyperscan_match_event(unsigned int id, unsigned long long from, unsigned long long to, unsigned int flags, GScanContext *context/*const hyperscan_context_t *context*/) { + + g_scan_context_store_atom_match_end(context, id, to); + + return 0; + +#if 0 + phys_t offset; /* Point de départ établi */ const uint32_t *coverage_base; /* Base des suivis */ uint32_t k; /* Boucle de parcours */ @@ -551,10 +961,12 @@ static int handle_hyperscan_match_event(unsigned int id, unsigned long long from final_k = coverage_base[EXPR_COVERAGE_END]; for (; k < final_k; k++) - g_umem_slice_put_uint64(context->matches[k], offset); + g_umem_slice_put_uint64(context->matches[0/*k*/], offset); return 0; +#endif + } @@ -579,7 +991,7 @@ static void g_hyperscan_backend_run_scan(const GHyperscanBackend *backend, GScan vmpa2t pos; /* Point de départ ciblé */ const bin_t *data; /* Données à analyser */ #ifndef NDEBUG - siez_t count; /* Nombre de zones prévues */ + size_t count; /* Nombre de zones prévues */ #endif hyperscan_context_t hcontext; /* Rassemblement d'informations*/ GUMemSlice **matches; /* Zones d'enregistrements */ @@ -604,12 +1016,15 @@ static void g_hyperscan_backend_run_scan(const GHyperscanBackend *backend, GScan hcontext.lit_ids = backend->lit_ids; #endif + /* #ifndef NDEBUG matches = g_scan_context_get_match_storages(context, &count); assert(count == backend->used); #else matches = g_scan_context_get_match_storages(context, (size_t []){ 0 }); #endif + */ + matches = NULL; /* REMME */ hcontext.matches = matches; @@ -617,7 +1032,7 @@ static void g_hyperscan_backend_run_scan(const GHyperscanBackend *backend, GScan ret = hs_scan(backend->database, (const char *)data, dlen, 0 /* Arg. inutilisé */, backend->scratch, - (match_event_handler)handle_hyperscan_match_event, &hcontext); + (match_event_handler)handle_hyperscan_match_event, /*&h*/context); //printf("ret ok? %d\n", ret == HS_SUCCESS); diff --git a/src/analysis/scan/patterns/tokens/node.h b/src/analysis/scan/patterns/tokens/node.h index 55bf0a8..5b1a247 100644 --- a/src/analysis/scan/patterns/tokens/node.h +++ b/src/analysis/scan/patterns/tokens/node.h @@ -33,6 +33,7 @@ #include "../backend.h" #include "../../context.h" #include "../../matches/bytes.h" +#include "../../../../glibext/umemslice.h" #define G_TYPE_SCAN_TOKEN_NODE g_scan_token_node_get_type() diff --git a/src/analysis/scan/patterns/tokens/nodes/any.c b/src/analysis/scan/patterns/tokens/nodes/any.c index d65f3c9..4334fff 100644 --- a/src/analysis/scan/patterns/tokens/nodes/any.c +++ b/src/analysis/scan/patterns/tokens/nodes/any.c @@ -52,7 +52,7 @@ static void g_scan_token_node_any_finalize(GScanTokenNodeAny *); /* Inscrit la définition d'un motif dans un moteur de recherche. */ -static bool g_scan_token_node_any_enroll(GScanTokenNodeAny *, GScanContext *, GEngineBackend *, size_t, size_t *); +static bool g_scan_token_node_any_enroll(GScanTokenNodeAny *, GEngineBackend *, size_t, size_t *); /* Transforme les correspondances locales en trouvailles. */ static void g_scan_token_node_any_check_forward(const GScanTokenNodeAny *, scan_node_check_params_t *, TokenNodeCheckFlags, bool *); @@ -264,7 +264,6 @@ void g_scan_token_node_any_merge(GScanTokenNodeAny *any, GScanTokenNodeAny *extr /****************************************************************************** * * * Paramètres : node = définition de la bribe à enregistrer. * -* context = contexte de l'analyse à mener. * * backend = moteur de recherche à préchauffer. * * maxsize = taille max. des atomes (mise en commun optimisée). * * slow = niveau de ralentissement induit (0 = idéal). [OUT] * @@ -277,7 +276,7 @@ void g_scan_token_node_any_merge(GScanTokenNodeAny *any, GScanTokenNodeAny *extr * * ******************************************************************************/ -static bool g_scan_token_node_any_enroll(GScanTokenNodeAny *node, GScanContext *context, GEngineBackend *backend, size_t maxsize, size_t *slow) +static bool g_scan_token_node_any_enroll(GScanTokenNodeAny *node, GEngineBackend *backend, size_t maxsize, size_t *slow) { bool result; /* Statut à retourner */ bool forced; /* Inclusion dans un scan ? */ @@ -370,7 +369,7 @@ static void g_scan_token_node_any_check_forward(const GScanTokenNodeAny *node, s if (match_size <= size) { - size -= match_size; + size -= (match_size - 1); assert(cflags & TNCF_UPDATE_IN_PLACE); @@ -382,10 +381,11 @@ static void g_scan_token_node_any_check_forward(const GScanTokenNodeAny *node, s space->end = space->start + match_size; add_tail_match_area(space, ¶ms->main_areas); - params->main_count++; } + params->main_count += size; + } } diff --git a/src/analysis/scan/patterns/tokens/nodes/masked.c b/src/analysis/scan/patterns/tokens/nodes/masked.c index 4941e0e..5194cb8 100644 --- a/src/analysis/scan/patterns/tokens/nodes/masked.c +++ b/src/analysis/scan/patterns/tokens/nodes/masked.c @@ -475,15 +475,18 @@ static void g_scan_token_node_masked_check_forward(const GScanTokenNodeMasked *n #ifndef NDEBUG bool forced; /* Inclusion dans un scan ? */ #endif + match_area_t **areas; /* Liste de zones à constituer */ + size_t *count; /* Taille de cette liste */ + bool copy; /* Besoin d'une copie ? */ + bool inverted; /* Inversion des bilans ? */ size_t i; /* Boucle de parcours #1 */ const tracked_scan_atom_t *atom; /* Atome correspondant */ - GUMemSlice *atoms; /* Localisations des bribes */ - const umem_slice_iter_t *aiter; /* Boucle de parcours #2 */ - match_area_t *end; /* Borne de fin de parcours */ - match_area_t *pos; /* Position courante */ - bool status; /* Bilan d'une correspondance */ + match_area_t *atoms; /* Localisations des bribes */ + bool first_round; /* Premier tour de traitement */ match_area_t *area; /* Correspondance à valider */ match_area_t *next; /* Correspondance suivante */ + phys_t start; /* Début potentiel de motif */ + bool status; /* Bilan d'une correspondance */ phys_t after; /* Espace disposible après */ phys_t min_end; /* Fin la plus proche possible */ phys_t max_end; /* Fin la plus éloignée trouvée*/ @@ -514,101 +517,145 @@ static void g_scan_token_node_masked_check_forward(const GScanTokenNodeMasked *n if (!params->initialized) { + /* Destinations établies une fois pour toutes */ + + if (cflags & TNCF_KEEP_DISCARDED) + { + areas = ¶ms->kept_areas; + count = ¶ms->kept_count; + + copy = false; + inverted = true; + + } + + else if (cflags & TNCF_CREATE_NEW) + { + areas = ¶ms->created_areas; + count = ¶ms->created_count; + + copy = true; + inverted = false; + + } + + else + { + assert(cflags & TNCF_UPDATE_IN_PLACE); + + areas = ¶ms->main_areas; + count = ¶ms->main_count; + + copy = false; + inverted = false; + + } + + /* Parcours des combinaisons enregistrées */ + for (i = 0; i < node->enrolled_count; i++) { atom = &node->enrolled_atoms[i]; atoms = g_scan_context_get_atom_matches(params->context, atom->pid); + first_round = (*count == 0); + if (atom->fast_check) { - for (aiter = g_umem_slice_get_iter(atoms); aiter != NULL; aiter = aiter->next) - { - end = aiter->data_end; + /** + * Toutes les correspondances sont validées d'office car le motif identifié + * correspondant au motif complet. + */ - for (pos = aiter->data; pos < end; pos++) + if (!inverted) + { + for_each_match_area(area, atoms) { /** * La modification de la zone d'origine est possible dans tous les cas * car cette zone a été allouée de façon dédiée à un type de correspondances * et ne sera pas réutilisée comme autre source de correspondance ailleurs. */ - pos->end = pos->start + atom->len; - if (cflags & TNCF_KEEP_DISCARDED) - { - add_tail_match_area(pos, ¶ms->kept_areas); - params->kept_count++; - } - - else if (cflags & TNCF_CREATE_NEW) - { - add_tail_match_area(pos, ¶ms->created_areas); - params->created_count++; - } + assert(area->end >= atom->len); - else - { - assert(cflags & TNCF_UPDATE_IN_PLACE); + area->start = area->end - atom->len; - add_tail_match_area(pos, ¶ms->main_areas); - params->main_count++; - - } + (*count)++; } } + else + atoms = NULL; + } else { - for (aiter = g_umem_slice_get_iter(atoms); aiter != NULL; aiter = aiter->next) + for_each_match_area_safe(area, &atoms, next) { - end = aiter->data_end; + start = area->end - atom->len - atom->pos; - for (pos = aiter->data; pos < end; pos++) + status = check_scan_token_node_masked_content(node->bytes, node->len, + start, params->content); + + if (status) { - status = check_scan_token_node_masked_content(node->bytes, node->len, - pos->start, params->content); + /** + * La modification de la zone d'origine est possible dans tous les cas + * car cette zone a été allouée de façon dédiée à un type de correspondances + * et ne sera pas réutilisée comme autre source de correspondance ailleurs. + */ - if (status) + if (!inverted) { - /** - * La modification de la zone d'origine est possible dans tous les cas - * car cette zone a été allouée de façon dédiée à un type de correspondances - * et ne sera pas réutilisée comme autre source de correspondance ailleurs. - */ - pos->end = pos->start + node->len; - - if (cflags & TNCF_KEEP_DISCARDED) - { - add_tail_match_area(pos, ¶ms->kept_areas); - params->kept_count++; - } - - else if (cflags & TNCF_CREATE_NEW) - { - add_tail_match_area(pos, ¶ms->created_areas); - params->created_count++; - } - - else - { - assert(cflags & TNCF_UPDATE_IN_PLACE); - - add_tail_match_area(pos, ¶ms->main_areas); - params->main_count++; - - } + area->start = start; + area->end += atom->rem; + + (*count)++; } + else + del_match_area(area, &atoms); + + } + + else + { + /** + * Les principes de modifications restent valables, même inversés. + */ + if (inverted) + { + area->start = start; + area->end += atom->rem; + + (*count)++; + + } + else + del_match_area(area, &atoms); } } + + } + + /* Mise à jour de la liste */ + + if (atoms != NULL) + { + if (first_round) + *areas = atoms; + + else + merge_match_areas(areas, &atoms); + } } diff --git a/src/analysis/scan/patterns/tokens/nodes/plain.c b/src/analysis/scan/patterns/tokens/nodes/plain.c index 71e2e9b..5dd45df 100644 --- a/src/analysis/scan/patterns/tokens/nodes/plain.c +++ b/src/analysis/scan/patterns/tokens/nodes/plain.c @@ -654,16 +654,19 @@ static void g_scan_token_node_plain_check_forward(const GScanTokenNodePlain *nod { bool track_path; /* Conservation du chemin */ bool nocase; /* Pas d'intérêt pour la casse */ + match_area_t **areas; /* Liste de zones à constituer */ + size_t *count; /* Taille de cette liste */ + bool copy; /* Besoin d'une copie ? */ + bool inverted; /* Inversion des bilans ? */ size_t i; /* Boucle de parcours #1 */ - const sized_binary_t *raw; /* Données brutes d'origine */ const tracked_scan_atom_t *atom; /* Atome correspondant */ - GUMemSlice *atoms; /* Localisations des bribes */ - const umem_slice_iter_t *aiter; /* Boucle de parcours #2 */ - match_area_t *end; /* Borne de fin de parcours */ - match_area_t *pos; /* Position courante */ - bool status; /* Bilan d'une correspondance */ + match_area_t *atoms; /* Localisations des bribes */ + bool first_round; /* Premier tour de traitement */ match_area_t *area; /* Correspondance à valider */ + const sized_binary_t *raw; /* Données brutes d'origine */ match_area_t *next; /* Correspondance suivante */ + phys_t start; /* Début potentiel de motif */ + bool status; /* Bilan d'une correspondance */ phys_t after; /* Espace disposible après */ phys_t min_end; /* Fin la plus proche possible */ phys_t max_end; /* Fin la plus éloignée trouvée*/ @@ -689,98 +692,128 @@ static void g_scan_token_node_plain_check_forward(const GScanTokenNodePlain *nod */ if (!params->initialized) { + /* Destinations établies une fois pour toutes */ + + if (cflags & TNCF_KEEP_DISCARDED) + { + areas = ¶ms->kept_areas; + count = ¶ms->kept_count; + + copy = false; + inverted = true; + + } + + else if (cflags & TNCF_CREATE_NEW) + { + areas = ¶ms->created_areas; + count = ¶ms->created_count; + + copy = true; + inverted = false; + + } + + else + { + assert(cflags & TNCF_UPDATE_IN_PLACE); + + areas = ¶ms->main_areas; + count = ¶ms->main_count; + + copy = false; + inverted = false; + + } + + /* Parcours des combinaisons enregistrées */ + for (i = 0; i < node->count; i++) { - raw = &node->raw[i]; atom = &node->atoms[i]; atoms = g_scan_context_get_atom_matches(params->context, atom->pid); + first_round = (*count == 0); + if (atom->fast_check) { - for (aiter = g_umem_slice_get_iter(atoms); aiter != NULL; aiter = aiter->next) - { - end = aiter->data_end; + /** + * Toutes les correspondances sont validées d'office car le motif identifié + * correspondant au motif complet. + */ - for (pos = aiter->data; pos < end; pos++) + if (!inverted) + { + for_each_match_area(area, atoms) { /** * La modification de la zone d'origine est possible dans tous les cas * car cette zone a été allouée de façon dédiée à un type de correspondances * et ne sera pas réutilisée comme autre source de correspondance ailleurs. */ - pos->end = pos->start + atom->len; - if (cflags & TNCF_KEEP_DISCARDED) - { - add_tail_match_area(pos, ¶ms->kept_areas); - params->kept_count++; - } - - else if (cflags & TNCF_CREATE_NEW) - { - add_tail_match_area(pos, ¶ms->created_areas); - params->created_count++; - } - - else - { - assert(cflags & TNCF_UPDATE_IN_PLACE); + assert(area->end >= atom->len); - add_tail_match_area(pos, ¶ms->main_areas); - params->main_count++; + area->start = area->end - atom->len; - } + (*count)++; } } + else + atoms = NULL; + } else { - for (aiter = g_umem_slice_get_iter(atoms); aiter != NULL; aiter = aiter->next) + raw = &node->raw[i]; + + for_each_match_area_safe(area, &atoms, next) { - end = aiter->data_end; + start = area->end - atom->len - atom->pos; - for (pos = aiter->data; pos < end; pos++) + status = check_scan_token_node_plain_content(raw, atom, nocase, start, params->content); + + if (status) { - status = check_scan_token_node_plain_content(raw, atom, nocase, - pos->start - atom->pos, params->content); + /** + * La modification de la zone d'origine est possible dans tous les cas + * car cette zone a été allouée de façon dédiée à un type de correspondances + * et ne sera pas réutilisée comme autre source de correspondance ailleurs. + */ - if (status) + if (!inverted) { - /** - * La modification de la zone d'origine est possible dans tous les cas - * car cette zone a été allouée de façon dédiée à un type de correspondances - * et ne sera pas réutilisée comme autre source de correspondance ailleurs. - */ - pos->start -= atom->pos; - pos->end = pos->start + raw->len; + area->start = start; + area->end += atom->rem; - if (cflags & TNCF_KEEP_DISCARDED) - { - add_tail_match_area(pos, ¶ms->kept_areas); - params->kept_count++; - } + (*count)++; - else if (cflags & TNCF_CREATE_NEW) - { - add_tail_match_area(pos, ¶ms->created_areas); - params->created_count++; - } + } + else + del_match_area(area, &atoms); - else - { - assert(cflags & TNCF_UPDATE_IN_PLACE); + } - add_tail_match_area(pos, ¶ms->main_areas); - params->main_count++; + else + { + /** + * Les principes de modifications restent valables, même inversés. + */ + if (inverted) + { + area->start = start; + area->end += atom->rem; - } + (*count)++; } + else + del_match_area(area, &atoms); } @@ -789,6 +822,18 @@ static void g_scan_token_node_plain_check_forward(const GScanTokenNodePlain *nod } + /* Mise à jour de la liste */ + + if (atoms != NULL) + { + if (first_round) + *areas = atoms; + + else + merge_match_areas(areas, &atoms); + + } + } } |