929 lines
23 KiB
C
929 lines
23 KiB
C
/* mate_runtime.c
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* MATE -- Meta Analysis Tracing Engine
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*
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* Copyright 2004, Luis E. Garcia Ontanon <luis@ontanon.org>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "mate.h"
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typedef struct _mate_range mate_range;
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struct _mate_range {
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guint start;
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guint end;
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};
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typedef struct _tmp_pdu_data {
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GPtrArray* ranges;
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proto_tree* tree;
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mate_pdu* pdu;
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} tmp_pdu_data;
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typedef struct _gogkey {
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gchar* key;
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mate_cfg_gop* cfg;
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} gogkey;
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static mate_runtime_data* rd = NULL;
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static mate_config* mc = NULL;
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static int zero = 5;
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static int* dbg = &zero;
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static int* dbg_pdu = &zero;
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static int* dbg_gop = &zero;
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static int* dbg_gog = &zero;
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static FILE* dbg_facility = NULL;
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static gboolean destroy_mate_pdus(gpointer k _U_, gpointer v, gpointer p _U_) {
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mate_pdu* pdu = (mate_pdu*) v;
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if (pdu->avpl) delete_avpl(pdu->avpl,TRUE);
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g_slice_free(mate_max_size, (mate_max_size *)pdu);
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return TRUE;
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}
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static gboolean destroy_mate_gops(gpointer k _U_, gpointer v, gpointer p _U_) {
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mate_gop* gop = (mate_gop*) v;
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if (gop->avpl) delete_avpl(gop->avpl,TRUE);
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if (gop->gop_key) {
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if (g_hash_table_lookup(gop->cfg->gop_index,gop->gop_key) == gop) {
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g_hash_table_remove(gop->cfg->gop_index,gop->gop_key);
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}
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g_free(gop->gop_key);
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}
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g_slice_free(mate_max_size,(mate_max_size*)gop);
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return TRUE;
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}
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static void gog_remove_keys (mate_gog* gog);
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static gboolean destroy_mate_gogs(gpointer k _U_, gpointer v, gpointer p _U_) {
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mate_gog* gog = (mate_gog*) v;
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if (gog->avpl) delete_avpl(gog->avpl,TRUE);
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if (gog->gog_keys) {
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gog_remove_keys(gog);
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g_ptr_array_free(gog->gog_keys,FALSE);
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}
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g_slice_free(mate_max_size,(mate_max_size*)gog);
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return TRUE;
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}
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static gboolean return_true(gpointer k _U_, gpointer v _U_, gpointer p _U_) {
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return TRUE;
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}
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static void destroy_pdus_in_cfg(gpointer k _U_, gpointer v, gpointer p _U_) {
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mate_cfg_pdu* c = (mate_cfg_pdu *)v;
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g_hash_table_foreach_remove(c->items,destroy_mate_pdus,NULL);
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c->last_id = 0;
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}
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static void destroy_gops_in_cfg(gpointer k _U_, gpointer v, gpointer p _U_) {
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mate_cfg_gop* c = (mate_cfg_gop *)v;
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g_hash_table_foreach_remove(c->gop_index,return_true,NULL);
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g_hash_table_destroy(c->gop_index);
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c->gop_index = g_hash_table_new(g_str_hash,g_str_equal);
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g_hash_table_foreach_remove(c->gog_index,return_true,NULL);
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g_hash_table_destroy(c->gog_index);
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c->gog_index = g_hash_table_new(g_str_hash,g_str_equal);
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g_hash_table_foreach_remove(c->items,destroy_mate_gops,NULL);
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c->last_id = 0;
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}
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static void destroy_gogs_in_cfg(gpointer k _U_, gpointer v, gpointer p _U_) {
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mate_cfg_gog* c = (mate_cfg_gog *)v;
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g_hash_table_foreach_remove(c->items,destroy_mate_gogs,NULL);
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c->last_id = 0;
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}
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extern void initialize_mate_runtime(void) {
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dbg_print (dbg,5,dbg_facility,"initialize_mate: entering");
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if (( mc = mate_cfg() )) {
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if (rd == NULL ) {
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rd = (mate_runtime_data *)g_malloc(sizeof(mate_runtime_data));
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} else {
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g_hash_table_foreach(mc->pducfgs,destroy_pdus_in_cfg,NULL);
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g_hash_table_foreach(mc->gopcfgs,destroy_gops_in_cfg,NULL);
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g_hash_table_foreach(mc->gogcfgs,destroy_gogs_in_cfg,NULL);
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g_hash_table_destroy(rd->frames);
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}
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rd->current_items = 0;
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rd->now = -1.0f;
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rd->highest_analyzed_frame = 0;
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rd->frames = g_hash_table_new(g_direct_hash,g_direct_equal);
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/*mc->dbg_gop_lvl = 5;
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mc->dbg_gog_lvl = 5;
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*/
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dbg_pdu = &(mc->dbg_pdu_lvl);
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dbg_gop = &(mc->dbg_gop_lvl);
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dbg_gog = &(mc->dbg_gog_lvl);
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dbg = &(mc->dbg_lvl);
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dbg_facility = mc->dbg_facility;
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dbg_print(dbg, 1, dbg_facility, "starting mate");
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} else {
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rd = NULL;
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}
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}
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static mate_gop* new_gop(mate_cfg_gop* cfg, mate_pdu* pdu, gchar* key) {
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mate_gop* gop = (mate_gop*)g_slice_new(mate_max_size);
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gop->id = ++(cfg->last_id);
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gop->cfg = cfg;
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dbg_print(dbg_gop, 1, dbg_facility, "new_gop: %s: ``%s:%d''", key, gop->cfg->name, gop->id);
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gop->gop_key = key;
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gop->avpl = new_avpl(cfg->name);
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gop->last_n = 0;
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gop->gog = NULL;
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gop->next = NULL;
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gop->expiration = cfg->expiration > 0.0 ? cfg->expiration + rd->now : (float) -1.0 ;
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gop->idle_expiration = cfg->idle_timeout > 0.0 ? cfg->idle_timeout + rd->now : (float) -1.0 ;
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gop->time_to_die = cfg->lifetime > 0.0 ? cfg->lifetime + rd->now : (float) -1.0 ;
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gop->time_to_timeout = 0.0f;
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gop->last_time = gop->start_time = rd->now;
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gop->release_time = 0.0f;
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gop->num_of_pdus = 0;
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gop->num_of_after_release_pdus = 0;
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gop->pdus = pdu;
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gop->last_pdu = pdu;
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gop->released = FALSE;
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pdu->gop = gop;
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pdu->next = NULL;
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pdu->is_start = TRUE;
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pdu->time_in_gop = 0.0f;
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g_hash_table_insert(cfg->gop_index,gop->gop_key,gop);
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return gop;
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}
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static void adopt_gop(mate_gog* gog, mate_gop* gop) {
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dbg_print (dbg_gog,5,dbg_facility,"adopt_gop: gog=%X gop=%X",gog,gop);
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gop->gog = gog;
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gop->next = NULL;
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if (gop->cfg->start) {
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gog->num_of_counting_gops++;
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}
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gog->num_of_gops++;
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if (gog->last_gop) {
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gog->last_gop->next = gop;
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}
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gog->last_gop = gop;
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if (! gog->gops ) {
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gog->gops = gop;
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}
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}
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static mate_gog* new_gog(mate_cfg_gog* cfg, mate_gop* gop) {
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mate_gog* gog = (mate_gog*)g_slice_new(mate_max_size);
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gog->id = ++(cfg->last_id);
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gog->cfg = cfg;
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dbg_print (dbg_gog,1,dbg_facility,"new_gog: %s:%u for %s:%u",gog->cfg->name,gog->id,gop->cfg->name,gop->id);
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gog->avpl = new_avpl(cfg->name);
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gog->last_n = 0;
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gog->expiration = 0.0f;
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gog->idle_expiration = 0.0f;
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gog->start_time = rd->now;
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gog->release_time = 0.0f;
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gog->last_time = 0.0f;
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gog->gops = NULL;
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gog->last_gop = NULL;
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gog->num_of_gops = 0;
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gog->num_of_counting_gops = 0;
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gog->num_of_released_gops = 0;
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gog->gog_keys = g_ptr_array_new();
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adopt_gop(gog,gop);
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return gog;
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}
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static void apply_transforms(GPtrArray* transforms, AVPL* avpl) {
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AVPL_Transf* transform = NULL;
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guint i;
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for (i = 0; i < transforms->len; i++) {
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transform = (AVPL_Transf *)g_ptr_array_index(transforms,i);
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avpl_transform(avpl, transform);
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}
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}
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/* applies the extras for which type to what avpl */
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static void apply_extras(AVPL* from, AVPL* to, AVPL* extras) {
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AVPL* our_extras = new_avpl_loose_match("",from, extras, FALSE) ;
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if (our_extras) {
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merge_avpl(to,our_extras,TRUE);
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delete_avpl(our_extras,FALSE);
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}
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}
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static void gog_remove_keys (mate_gog* gog) {
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gogkey* gog_key;
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while (gog->gog_keys->len) {
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gog_key = (gogkey *)g_ptr_array_remove_index_fast(gog->gog_keys,0);
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if (g_hash_table_lookup(gog_key->cfg->gog_index,gog_key->key) == gog) {
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g_hash_table_remove(gog_key->cfg->gog_index,gog_key->key);
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}
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g_free(gog_key->key);
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g_free(gog_key);
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}
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}
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static void reanalyze_gop(mate_gop* gop) {
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LoAL* gog_keys = NULL;
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AVPL* curr_gogkey = NULL;
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mate_cfg_gop* gop_cfg = NULL;
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void* cookie = NULL;
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AVPL* gogkey_match = NULL;
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mate_gog* gog = gop->gog;
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gogkey* gog_key;
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if ( ! gog ) return;
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gog->last_time = rd->now;
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dbg_print (dbg_gog,1,dbg_facility,"reanalyze_gop: %s:%d",gop->cfg->name,gop->id);
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apply_extras(gop->avpl,gog->avpl,gog->cfg->extra);
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/* XXX: Instead of using the length of the avpl to check if an avpl has changed,
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which is not accurate at all, we should have apply_extras,
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apply_transformations and other functions that can modify the avpl
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to flag the avpl if it has changed, then we'll check for the flag
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and clear it after analysis */
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if (gog->last_n != gog->avpl->len) {
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dbg_print (dbg_gog,2,dbg_facility,"reanalyze_gop: gog has new attributes let's look for new keys");
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gog_keys = gog->cfg->keys;
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while (( curr_gogkey = get_next_avpl(gog_keys,&cookie) )) {
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gop_cfg = (mate_cfg_gop *)g_hash_table_lookup(mc->gopcfgs,curr_gogkey->name);
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if (( gogkey_match = new_avpl_exact_match(gop_cfg->name,gog->avpl,curr_gogkey,FALSE) )) {
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gog_key = (gogkey *)g_malloc(sizeof(gogkey));
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gog_key->key = avpl_to_str(gogkey_match);
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delete_avpl(gogkey_match,FALSE);
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gog_key->cfg = gop_cfg;
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if (g_hash_table_lookup(gop_cfg->gog_index,gog_key->key)) {
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g_free(gog_key->key);
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g_free(gog_key);
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gog_key = NULL;
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}
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if (! gog_key ) {
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/* XXX: since these gogs actually share key info
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we should try to merge (non released) gogs
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that happen to have equal keys */
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} else {
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: new key for gog=%s:%d : %s",gog->cfg->name,gog->id,gog_key->key);
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g_ptr_array_add(gog->gog_keys,gog_key);
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g_hash_table_insert(gog_key->cfg->gog_index,gog_key->key,gog);
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}
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}
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}
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gog->last_n = gog->avpl->len;
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}
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if (gog->num_of_released_gops == gog->num_of_counting_gops) {
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gog->released = TRUE;
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gog->expiration = gog->cfg->expiration + rd->now;
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} else {
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gog->released = FALSE;
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}
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}
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static void analyze_gop(mate_gop* gop) {
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mate_cfg_gog* cfg = NULL;
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LoAL* gog_keys = NULL;
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AVPL* curr_gogkey = NULL;
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void* cookie = NULL;
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AVPL* gogkey_match = NULL;
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mate_gog* gog = NULL;
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gchar* key = NULL;
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if ( ! gop->gog ) {
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/* no gog, let's either find one or create it if due */
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: no gog");
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gog_keys = (LoAL *)g_hash_table_lookup(mc->gogs_by_gopname,gop->cfg->name);
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if ( ! gog_keys ) {
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: no gog_keys for this gop");
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return;
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}
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/* We have gog_keys! look for matching gogkeys */
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: got gog_keys: %s",gog_keys->name) ;
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while (( curr_gogkey = get_next_avpl(gog_keys,&cookie) )) {
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if (( gogkey_match = new_avpl_exact_match(gop->cfg->name,gop->avpl,curr_gogkey,TRUE) )) {
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key = avpl_to_str(gogkey_match);
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: got gogkey_match: %s",key);
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if (( gog = (mate_gog *)g_hash_table_lookup(gop->cfg->gog_index,key) )) {
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: got already a matching gog");
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if (gog->num_of_counting_gops == gog->num_of_released_gops && gog->expiration < rd->now) {
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: this is a new gog, not the old one, let's create it");
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gog_remove_keys(gog);
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new_gog(gog->cfg,gop);
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break;
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} else {
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: this is our gog");
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if (! gop->gog ) adopt_gop(gog,gop);
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break;
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}
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} else {
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: no such gog in hash, let's create a new %s",curr_gogkey->name);
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cfg = (mate_cfg_gog *)g_hash_table_lookup(mc->gogcfgs,curr_gogkey->name);
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if (cfg) {
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gog = new_gog(cfg,gop);
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gog->num_of_gops = 1;
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if (gop->cfg->start) {
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gog->num_of_counting_gops = 1;
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}
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} else {
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dbg_print (dbg_gog,0,dbg_facility,"analyze_gop: no such gog_cfg: %s",curr_gogkey->name);
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}
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break;
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}
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/** Can't get here because of "breaks" above */
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g_assert_not_reached();
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}
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dbg_print (dbg_gog,1,dbg_facility,"analyze_gop: no gogkey_match: %s",key);
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} /* while */
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g_free(key);
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key = NULL;
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if (gogkey_match) delete_avpl(gogkey_match,TRUE);
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reanalyze_gop(gop);
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}
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}
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static void analyze_pdu(mate_pdu* pdu) {
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/* TODO:
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return a g_boolean to tell we've destroyed the pdu when the pdu is unnassigned
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destroy the unassigned pdu
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*/
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mate_cfg_gop* cfg = NULL;
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mate_gop* gop = NULL;
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gchar* gop_key;
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gchar* orig_gop_key = NULL;
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AVPL* candidate_start = NULL;
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AVPL* candidate_stop = NULL;
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AVPL* is_start = NULL;
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AVPL* is_stop = NULL;
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AVPL* gopkey_match = NULL;
|
|
LoAL* gog_keys = NULL;
|
|
AVPL* curr_gogkey = NULL;
|
|
void* cookie = NULL;
|
|
AVPL* gogkey_match = NULL;
|
|
gchar* gogkey_str = NULL;
|
|
|
|
dbg_print (dbg_gop,1,dbg_facility,"analyze_pdu: %s",pdu->cfg->name);
|
|
|
|
if (! (cfg = (mate_cfg_gop *)g_hash_table_lookup(mc->gops_by_pduname,pdu->cfg->name)) )
|
|
return;
|
|
|
|
if ((gopkey_match = new_avpl_exact_match("gop_key_match",pdu->avpl,cfg->key, TRUE))) {
|
|
gop_key = avpl_to_str(gopkey_match);
|
|
|
|
g_hash_table_lookup_extended(cfg->gop_index,(gconstpointer)gop_key,(gpointer *)&orig_gop_key,(gpointer *)&gop);
|
|
|
|
if ( gop ) {
|
|
g_free(gop_key);
|
|
|
|
/* is the gop dead ? */
|
|
if ( ! gop->released &&
|
|
( ( gop->cfg->lifetime > 0.0 && gop->time_to_die >= rd->now) ||
|
|
( gop->cfg->idle_timeout > 0.0 && gop->time_to_timeout >= rd->now) ) ) {
|
|
dbg_print (dbg_gop,4,dbg_facility,"analyze_pdu: expiring released gop");
|
|
gop->released = TRUE;
|
|
|
|
if (gop->gog && gop->cfg->start) gop->gog->num_of_released_gops++;
|
|
}
|
|
|
|
/* TODO: is the gop expired? */
|
|
|
|
gop_key = orig_gop_key;
|
|
|
|
dbg_print (dbg_gop,2,dbg_facility,"analyze_pdu: got gop: %s",gop_key);
|
|
|
|
if (( candidate_start = cfg->start )) {
|
|
|
|
dbg_print (dbg_gop,2,dbg_facility,"analyze_pdu: got candidate start");
|
|
|
|
if (( is_start = new_avpl_exact_match("",pdu->avpl, candidate_start, FALSE) )) {
|
|
delete_avpl(is_start,FALSE);
|
|
if ( gop->released ) {
|
|
dbg_print (dbg_gop,3,dbg_facility,"analyze_pdu: start on released gop, let's create a new gop");
|
|
|
|
g_hash_table_remove(cfg->gop_index,gop_key);
|
|
gop->gop_key = NULL;
|
|
gop = new_gop(cfg,pdu,gop_key);
|
|
g_hash_table_insert(cfg->gop_index,gop_key,gop);
|
|
} else {
|
|
dbg_print (dbg_gop,1,dbg_facility,"analyze_pdu: duplicate start on gop");
|
|
}
|
|
}
|
|
}
|
|
|
|
pdu->gop = gop;
|
|
|
|
if (gop->last_pdu) gop->last_pdu->next = pdu;
|
|
gop->last_pdu = pdu;
|
|
pdu->next = NULL;
|
|
pdu->time_in_gop = rd->now - gop->start_time;
|
|
|
|
if (gop->released) pdu->after_release = TRUE;
|
|
|
|
} else {
|
|
|
|
dbg_print (dbg_gop,1,dbg_facility,"analyze_pdu: no gop already");
|
|
|
|
if ( ! cfg->start ) {
|
|
/* there is no GopStart, we'll check for matching GogKeys
|
|
if we have one we'll create the Gop */
|
|
|
|
apply_extras(pdu->avpl,gopkey_match,cfg->extra);
|
|
|
|
gog_keys = (LoAL *)g_hash_table_lookup(mc->gogs_by_gopname,cfg->name);
|
|
|
|
if (gog_keys) {
|
|
|
|
while (( curr_gogkey = get_next_avpl(gog_keys,&cookie) )) {
|
|
if (( gogkey_match = new_avpl_exact_match(cfg->name,gopkey_match,curr_gogkey,FALSE) )) {
|
|
gogkey_str = avpl_to_str(gogkey_match);
|
|
|
|
if (g_hash_table_lookup(cfg->gog_index,gogkey_str)) {
|
|
gop = new_gop(cfg,pdu,gop_key);
|
|
g_hash_table_insert(cfg->gop_index,gop_key,gop);
|
|
delete_avpl(gogkey_match,FALSE);
|
|
g_free(gogkey_str);
|
|
break;
|
|
} else {
|
|
delete_avpl(gogkey_match,FALSE);
|
|
g_free(gogkey_str);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( ! gop ) {
|
|
g_free(gop_key);
|
|
delete_avpl(gopkey_match,TRUE);
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
g_free(gop_key);
|
|
delete_avpl(gopkey_match,TRUE);
|
|
return;
|
|
}
|
|
|
|
} else {
|
|
candidate_start = cfg->start;
|
|
|
|
if (( is_start = new_avpl_exact_match("",pdu->avpl, candidate_start, FALSE) )) {
|
|
delete_avpl(is_start,FALSE);
|
|
gop = new_gop(cfg,pdu,gop_key);
|
|
} else {
|
|
g_free(gop_key);
|
|
return;
|
|
}
|
|
|
|
pdu->gop = gop;
|
|
}
|
|
}
|
|
|
|
if (gop->last_pdu) gop->last_pdu->next = pdu;
|
|
gop->last_pdu = pdu;
|
|
pdu->next = NULL;
|
|
|
|
pdu->time_in_gop = rd->now - gop->start_time;
|
|
|
|
gop->num_of_pdus++;
|
|
gop->time_to_timeout = cfg->idle_timeout > 0.0 ? cfg->idle_timeout + rd->now : (float) -1.0 ;
|
|
|
|
dbg_print (dbg_gop,4,dbg_facility,"analyze_pdu: merge with key");
|
|
|
|
merge_avpl(gop->avpl,gopkey_match,TRUE);
|
|
delete_avpl(gopkey_match,TRUE);
|
|
|
|
dbg_print (dbg_gop,4,dbg_facility,"analyze_pdu: apply extras");
|
|
|
|
apply_extras(pdu->avpl,gop->avpl,gop->cfg->extra);
|
|
|
|
gop->last_time = pdu->rel_time;
|
|
|
|
if ( ! gop->released) {
|
|
candidate_stop = cfg->stop;
|
|
|
|
if (candidate_stop) {
|
|
is_stop = new_avpl_exact_match("",pdu->avpl, candidate_stop,FALSE);
|
|
} else {
|
|
is_stop = new_avpl("");
|
|
}
|
|
|
|
if(is_stop) {
|
|
dbg_print (dbg_gop,1,dbg_facility,"analyze_pdu: is a `stop");
|
|
delete_avpl(is_stop,FALSE);
|
|
|
|
if (! gop->released) {
|
|
gop->released = TRUE;
|
|
gop->release_time = pdu->rel_time;
|
|
if (gop->gog && gop->cfg->start) gop->gog->num_of_released_gops++;
|
|
}
|
|
|
|
pdu->is_stop = TRUE;
|
|
|
|
}
|
|
}
|
|
|
|
if (gop->last_n != gop->avpl->len) apply_transforms(gop->cfg->transforms,gop->avpl);
|
|
|
|
gop->last_n = gop->avpl->len;
|
|
|
|
if (gop->gog) {
|
|
reanalyze_gop(gop);
|
|
} else {
|
|
analyze_gop(gop);
|
|
}
|
|
|
|
} else {
|
|
dbg_print (dbg_gop,4,dbg_facility,"analyze_pdu: no match for this pdu");
|
|
|
|
pdu->gop = NULL;
|
|
}
|
|
}
|
|
|
|
static void get_pdu_fields(gpointer k, gpointer v, gpointer p) {
|
|
int hfid = *((int*) k);
|
|
gchar* name = (gchar*) v;
|
|
tmp_pdu_data* data = (tmp_pdu_data*) p;
|
|
GPtrArray* fis;
|
|
field_info* fi;
|
|
guint i,j;
|
|
mate_range* curr_range;
|
|
guint start;
|
|
guint end;
|
|
AVP* avp;
|
|
gchar* s;
|
|
|
|
|
|
fis = proto_get_finfo_ptr_array(data->tree, hfid);
|
|
|
|
if (fis) {
|
|
for (i = 0; i < fis->len; i++) {
|
|
fi = (field_info*) g_ptr_array_index(fis,i);
|
|
|
|
|
|
start = fi->start;
|
|
end = fi->start + fi->length;
|
|
|
|
dbg_print(dbg_pdu,5,dbg_facility,"get_pdu_fields: found field %i-%i",start,end);
|
|
|
|
for (j = 0; j < data->ranges->len; j++) {
|
|
|
|
curr_range = (mate_range*) g_ptr_array_index(data->ranges,j);
|
|
|
|
if (curr_range->end >= end && curr_range->start <= start) {
|
|
avp = new_avp_from_finfo(name, fi);
|
|
|
|
if (*dbg_pdu > 4) {
|
|
s = avp_to_str(avp);
|
|
dbg_print(dbg_pdu,0,dbg_facility,"get_pdu_fields: got %s",s);
|
|
g_free(s);
|
|
}
|
|
|
|
if (! insert_avp(data->pdu->avpl,avp) ) {
|
|
delete_avp(avp);
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static mate_pdu* new_pdu(mate_cfg_pdu* cfg, guint32 framenum, field_info* proto, proto_tree* tree) {
|
|
mate_pdu* pdu = (mate_pdu*)g_slice_new(mate_max_size);
|
|
field_info* cfi;
|
|
GPtrArray* ptrs;
|
|
mate_range* range;
|
|
mate_range* proto_range;
|
|
tmp_pdu_data data;
|
|
guint i,j;
|
|
gint min_dist;
|
|
field_info* range_fi;
|
|
gint32 last_start;
|
|
gint32 first_end;
|
|
gint32 curr_end;
|
|
int hfid;
|
|
|
|
dbg_print (dbg_pdu,1,dbg_facility,"new_pdu: type=%s framenum=%i",cfg->name,framenum);
|
|
|
|
pdu->id = ++(cfg->last_id);
|
|
pdu->cfg = cfg;
|
|
|
|
pdu->avpl = new_avpl(cfg->name);
|
|
|
|
pdu->frame = framenum;
|
|
pdu->next_in_frame = NULL;
|
|
pdu->rel_time = rd->now;
|
|
|
|
pdu->gop = NULL;
|
|
pdu->next = NULL;
|
|
pdu->time_in_gop = -1.0f;
|
|
|
|
pdu->first = FALSE;
|
|
pdu->is_start = FALSE;
|
|
pdu->is_stop = FALSE;
|
|
pdu->after_release = FALSE;
|
|
|
|
data.ranges = g_ptr_array_new();
|
|
data.pdu = pdu;
|
|
data.tree = tree;
|
|
|
|
/* first we create the proto range */
|
|
proto_range = (mate_range *)g_malloc(sizeof(mate_range));
|
|
proto_range->start = proto->start;
|
|
proto_range->end = proto->start + proto->length;
|
|
g_ptr_array_add(data.ranges,proto_range);
|
|
|
|
dbg_print(dbg_pdu,3,dbg_facility,"new_pdu: proto range %u-%u",proto_range->start,proto_range->end);
|
|
|
|
last_start = proto_range->start;
|
|
|
|
/* we move forward in the tranport */
|
|
for (i = cfg->transport_ranges->len; i--; ) {
|
|
hfid = *((int*)g_ptr_array_index(cfg->transport_ranges,i));
|
|
ptrs = proto_get_finfo_ptr_array(tree, hfid);
|
|
min_dist = 99999;
|
|
range_fi = NULL;
|
|
|
|
if (ptrs) {
|
|
for (j=0; j < ptrs->len; j++) {
|
|
cfi = (field_info*) g_ptr_array_index(ptrs,j);
|
|
if (cfi->start < last_start && min_dist >= (last_start - cfi->start) ) {
|
|
range_fi = cfi;
|
|
min_dist = last_start - cfi->start;
|
|
}
|
|
}
|
|
|
|
if ( range_fi ) {
|
|
range = (mate_range *)g_malloc(sizeof(*range));
|
|
range->start = range_fi->start;
|
|
range->end = range_fi->start + range_fi->length;
|
|
g_ptr_array_add(data.ranges,range);
|
|
|
|
last_start = range_fi->start;
|
|
|
|
dbg_print(dbg_pdu,3,dbg_facility,"new_pdu: transport(%i) range %i-%i",hfid,range->start,range->end);
|
|
} else {
|
|
/* we missed a range */
|
|
dbg_print(dbg_pdu,6,dbg_facility,"new_pdu: transport(%i) missed",hfid);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if (cfg->payload_ranges) {
|
|
|
|
first_end = proto_range->end;
|
|
|
|
for (i = 0 ; i < cfg->payload_ranges->len; i++) {
|
|
hfid = *((int*)g_ptr_array_index(cfg->payload_ranges,i));
|
|
ptrs = proto_get_finfo_ptr_array(tree, hfid);
|
|
min_dist = 99999;
|
|
range_fi = NULL;
|
|
|
|
if (ptrs) {
|
|
for (j=0; j < ptrs->len; j++) {
|
|
cfi = (field_info*) g_ptr_array_index(ptrs,j);
|
|
curr_end = cfi->start + cfi->length;
|
|
if (curr_end > first_end && min_dist >= (curr_end - first_end) ) {
|
|
range_fi = cfi;
|
|
min_dist = curr_end - first_end;
|
|
}
|
|
}
|
|
|
|
if ( range_fi ) {
|
|
range = (mate_range *)g_malloc(sizeof(*range));
|
|
range->start = range_fi->start;
|
|
range->end = range_fi->start + range_fi->length;
|
|
g_ptr_array_add(data.ranges,range);
|
|
|
|
dbg_print(dbg_pdu,3,dbg_facility,"new_pdu: payload(%i) range %i-%i",hfid,range->start,range->end);
|
|
} else {
|
|
/* we missed a range */
|
|
dbg_print(dbg_pdu,5,dbg_facility,"new_pdu: payload(%i) missed",hfid);
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
g_hash_table_foreach(cfg->hfids_attr,get_pdu_fields,&data);
|
|
|
|
apply_transforms(pdu->cfg->transforms,pdu->avpl);
|
|
|
|
g_ptr_array_free(data.ranges,TRUE);
|
|
|
|
return pdu;
|
|
}
|
|
|
|
|
|
extern void mate_analyze_frame(packet_info *pinfo, proto_tree* tree) {
|
|
mate_cfg_pdu* cfg;
|
|
GPtrArray* protos;
|
|
field_info* proto;
|
|
guint i,j;
|
|
AVPL* criterium_match;
|
|
|
|
mate_pdu* pdu = NULL;
|
|
mate_pdu* last = NULL;
|
|
|
|
rd->now = (float) nstime_to_sec(&pinfo->rel_ts);
|
|
|
|
if ( proto_tracking_interesting_fields(tree)
|
|
&& rd->highest_analyzed_frame < pinfo->fd->num ) {
|
|
for ( i = 0; i < mc->pducfglist->len; i++ ) {
|
|
|
|
cfg = (mate_cfg_pdu *)g_ptr_array_index(mc->pducfglist,i);
|
|
|
|
dbg_print (dbg_pdu,4,dbg_facility,"mate_analyze_frame: trying to extract: %s",cfg->name);
|
|
protos = proto_get_finfo_ptr_array(tree, cfg->hfid_proto);
|
|
|
|
if (protos) {
|
|
pdu = NULL;
|
|
|
|
for (j = 0; j < protos->len; j++) {
|
|
|
|
dbg_print (dbg_pdu,3,dbg_facility,"mate_analyze_frame: found matching proto, extracting: %s",cfg->name);
|
|
|
|
proto = (field_info*) g_ptr_array_index(protos,j);
|
|
pdu = new_pdu(cfg, pinfo->fd->num, proto, tree);
|
|
|
|
if (cfg->criterium) {
|
|
criterium_match = new_avpl_from_match(cfg->criterium_match_mode,"",pdu->avpl,cfg->criterium,FALSE);
|
|
|
|
if (criterium_match) {
|
|
delete_avpl(criterium_match,FALSE);
|
|
}
|
|
|
|
if ( (criterium_match && cfg->criterium_accept_mode == REJECT_MODE )
|
|
|| ( ! criterium_match && cfg->criterium_accept_mode == ACCEPT_MODE )) {
|
|
|
|
delete_avpl(pdu->avpl,TRUE);
|
|
g_slice_free(mate_max_size,(mate_max_size*)pdu);
|
|
pdu = NULL;
|
|
|
|
continue;
|
|
}
|
|
}
|
|
|
|
analyze_pdu(pdu);
|
|
|
|
if ( ! pdu->gop && cfg->drop_unassigned) {
|
|
delete_avpl(pdu->avpl,TRUE);
|
|
g_slice_free(mate_max_size,(mate_max_size*)pdu);
|
|
pdu = NULL;
|
|
continue;
|
|
}
|
|
|
|
if ( cfg->discard ) {
|
|
delete_avpl(pdu->avpl,TRUE);
|
|
pdu->avpl = NULL;
|
|
}
|
|
|
|
if (!last) {
|
|
g_hash_table_insert(rd->frames,GINT_TO_POINTER(pinfo->fd->num),pdu);
|
|
last = pdu;
|
|
} else {
|
|
last->next_in_frame = pdu;
|
|
last = pdu;
|
|
}
|
|
|
|
}
|
|
|
|
if ( pdu && cfg->last_extracted ) break;
|
|
}
|
|
}
|
|
|
|
rd->highest_analyzed_frame = pinfo->fd->num;
|
|
}
|
|
}
|
|
|
|
extern mate_pdu* mate_get_pdus(guint32 framenum) {
|
|
|
|
if (rd) {
|
|
return (mate_pdu*) g_hash_table_lookup(rd->frames,GUINT_TO_POINTER(framenum));
|
|
} else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
|