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httpDissector.c
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httpDissector.c
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#include "httpDissector.h"
#define GC_SLEEP_SECS 60
extern struct msgbuf sbuf;
//PCAP HANDLER
pcap_t *handle = NULL;
long max_caplen = 0;
long max_len = 0;
//INDEX
unsigned long interval_ctr = 0;
interval *intervals = NULL;
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
pthread_t collector;
pthread_t progress;
node_l *active_session_list = NULL;
uint32_t active_session_list_size = 0;
uint32_t max_active_session_list_size = 0;
node_l static_node;
node_l *nodel_aux;
// collision_list session_table[MAX_FLOWS_TABLE_SIZE] = { {0} }; //2^24
collision_list *session_table = NULL;
int resized_session_table = 0;
packet_info *pktinfo = NULL;
char version[32] = "Version 2.89b";
struct args_parse options;
struct timespec last_packet;
struct timespec first_packet = {0};
struct rusage *memory = NULL;
char format[8] = {0};
char *filter = NULL;
char *global_filename = NULL;
char **files_path = NULL;
short progress_bar = 1;
FILE *output = NULL;
FILE *gcoutput = NULL;
FILE *index_file = NULL;
//HTTP
http_packet http = NULL;
unsigned long total_packets_in_file = 0;
void reset();
void print_info(long elapsed);
int main_process(char *format, char *filename);
unsigned long remove_old_active_nodes(struct timespec last_packet);
void sigintHandler(int sig)
{
signal(SIGINT, SIG_DFL);
struct timeval end;
gettimeofday(&end, NULL);
fprintf(stderr, "\n\nSkipping, wait...\n");
//ºremove_old_active_nodes(last_packet);
running = 0;
if (options.interface == NULL && progress_bar) {
pthread_join(progress, NULL);
}
if (options.sorted) {
freePrintElementList();
}
long elapsed = end.tv_sec - start.tv_sec;
print_info(elapsed);
if (options.output != NULL) {
fclose(output);
}
if (options.gcoutput != NULL) {
fclose(gcoutput);
}
if (files_path != NULL) {
int i = 0;
for (i = 0; i < nFiles; i++) {
FREE(files_path[i]);
}
FREE(files_path);
files_path = NULL;
}
// FREE(filter);
// FREE(pktinfo);
// http_free_packet(&http);
if (options.interface == NULL) {
// freeConnectionPool();
// freeRequestPool();
// freeNodelPool();
}
if (options.index != NULL) {
FREE(intervals);
}
// err_mqueue_close();
FREE(session_table);
exit(0);
}
unsigned long remove_old_active_nodes(struct timespec last_packet)
{
unsigned long removed = 0;
uint32_t processed = active_session_list_size;
ERR_MSG("remove_old_active_nodes\n");
if (active_session_list_size == 0) {
return removed;
}
node_l *last = list_get_last_node(&active_session_list);
struct timespec diff;
while (processed > 0) {
if (last == NULL) {
return removed;
}
node_l *n = last;
last = last->prev;
connection *conn = (connection *) n->data;
conn->active_node = n;
diff = tsSubtract(last_packet, conn->last_ts);
if (diff.tv_sec > 60) {
cleanUpConnection(conn, gcoutput);
uint32_t index = getIndexFromConnection(conn);
node_l *list = session_table[index].list;
node_l *conexion_node = NULL;
if (list == NULL) {
// fprintf(stderr, "list == NULL\n");
removeActiveConnexion(conn);
} else if ((conexion_node = list_search(list, n, compareConnection)) == NULL) {
// fprintf(stderr, "conexion_node == NULL %"PRIu32" %s\n", index, session_table[index].list == NULL? "NULL": "!NULL");
if (session_table[index].list != NULL && session_table[index].list->data != NULL) {
conn->active_node = n;
conexion_node = session_table[index].list;
removeConnexion(conn, conexion_node, index);
} else {
removeActiveConnexion(conn);
}
} else {
removeConnexion(conn, conexion_node, index);
}
removed++;
}
processed--;
}
return removed;
}
void *recolector_de_basura()
{
if (options.verbose) {
ERR_MSG("DEBUG/ COLLECTOR INITIALIZED\n");
}
short l = 0;
//60 sleeps of 1 second, just to be able to end the thread properly
while (l < GC_SLEEP_SECS) {
sleep(1);
running == 0 ? l = GC_SLEEP_SECS : l++;
}
while (running) {
pthread_mutex_lock(&mutex);
l = 0;
if (options.log) {
syslog(LOG_NOTICE, " \n");
syslog(LOG_NOTICE, "Elements in table hash before removing entries: %"PRIu32"\n", active_session_list_size);
}
if (options.verbose) {
ERR_MSG("DEBUG/ ==============================\n");
ERR_MSG("DEBUG/ Elements active in table hash before removing entries: %"PRIu32"\n", active_session_list_size);
}
unsigned long removed = remove_old_active_nodes(last_packet);
increment_total_removed_requests(removed);
if (options.verbose) {
ERR_MSG("DEBUG/ Elements active in table hash after removing entries: %"PRIu32" Removed: %ld\n", active_session_list_size, removed);
ERR_MSG("DEBUG/ ==============================\n\n");
}
if (options.log) {
syslog(LOG_NOTICE, "Elements in table hash after removing entries: %"PRIu32" Removed: %ld\n", active_session_list_size, removed);
}
pthread_mutex_unlock(&mutex);
while (l < GC_SLEEP_SECS) {
sleep(1);
running == 0 ? l = GC_SLEEP_SECS : l++;
}
}
return NULL;
}
double hash_table_usage()
{
// return resized_session_table ? ((double) active_session_list_size) / ((long double) BIG_MAX_FLOWS_TABLE_SIZE) : ((double) active_session_list_size) / ((long double) MAX_FLOWS_TABLE_SIZE);
return ((double) active_session_list_size) / ((long double) MAX_FLOWS_TABLE_SIZE);
}
unsigned long hash_table_collisions()
{
uint32_t processed = active_session_list_size;
unsigned long counter = 0;
node_l *last = list_get_last_node(&active_session_list);
while (processed > 0) {
if (last == NULL) {
return counter;
}
node_l *n = last;
last = last->prev;
connection *conn = (connection *) n->data;
uint32_t index = getIndexFromConnection(conn);
if (session_table[index].n > 1) {
counter += session_table[index].n - 1;
}
processed--;
}
return counter;
}
double hash_table_collisions_ratio(unsigned long collisions)
{
return ((long double) collisions) / ((long double) active_session_list_size + collisions);
}
void loadBar(unsigned long long x, unsigned long long n, unsigned long long r, int w)
{
if (r <= 0) {
return;
}
struct timeval aux_exec;
struct timeval elapsed;
// Only update r times.
if (x % (n / r) != 0) {
return;
}
// Calculuate the ratio of complete-to-incomplete.
float ratio = x / (float)n;
int c = ratio * w;
// Show the percentage complete.
fprintf(stderr, "%3.0d%% [", ((int)(ratio * 100)));
int i = 0;
// Show the load bar.
for (i = 0; i < c; i++) {
fprintf(stderr, "=");
}
for (i = c; i < w; i++) {
fprintf(stderr, " ");
}
fprintf(stderr, "]");
gettimeofday(&aux_exec, NULL);
timersub(&aux_exec, &start, &elapsed);
if (options.files) {
fprintf(stderr, " Elapsed Time: (%ld %.2ld:%.2ld:%.2ld)\tRead Speed: %lld MB/s\tFile: (%d/%d)", (elapsed.tv_sec / 86400), (elapsed.tv_sec / 3600) % 60, (elapsed.tv_sec / 60) % 60, (elapsed.tv_sec) % 60, elapsed.tv_sec == 0 ? 0 : x / (elapsed.tv_sec * 1024 * 1024), ndldata->contFiles, nFiles);
} else {
fprintf(stderr, " Elapsed Time: (%ld %.2ld:%.2ld:%.2ld)\tRead Speed: %lld MB/s\t", (elapsed.tv_sec / 86400), (elapsed.tv_sec / 3600) % 60, (elapsed.tv_sec / 60) % 60, (elapsed.tv_sec) % 60, elapsed.tv_sec == 0 ? 0 : x / (elapsed.tv_sec * 1024 * 1024));
}
#ifdef __linux__
fprintf(stderr, "\n");
#endif
if (options.log) {
pthread_mutex_lock(&mutex);
syslog(LOG_NOTICE, "SPEED: %ld secs @ %lld MB/s PROGRESS: %3.0d%%", elapsed.tv_sec, elapsed.tv_sec == 0 ? 0 : x / (elapsed.tv_sec * 1024 * 1024), ((int)(ratio * 100)));
unsigned long collisions = hash_table_collisions();
syslog(LOG_NOTICE, "HASH_USAGE: %u %f%% COLLISIONS: %ld COLLISIONS_RATIO: %f%%", active_session_list_size, hash_table_usage() * 100, collisions, hash_table_collisions_ratio(collisions) * 100);
syslog(LOG_NOTICE, "POOL USAGE: node_pool: %f%% connections_pool: %f%% requests_pool: %f%%", pool_nodes_used_ratio() * 100, pool_connections_used_ratio() * 100, pool_requests_used_ratio() * 100);
syslog(LOG_NOTICE, "TRANSACTIONS: %llu REQUESTS: %llu RESPONSES: %llu", get_transactions(), get_total_requests(), get_total_responses());
// syslog(LOG_NOTICE, "G.REQ: %lld (%lld) ACTIVE_REQ: %lld ACTIVE_CONNEXIONS: %"PRIu32" (%lld) G.RESP: %"PRIu32"", getGottenRequests(), get_total_requests(), get_active_requests(), active_session_list_size, get_total_connexions(), getGottenResponses());
getrusage(RUSAGE_SELF, memory);
if (errno == EFAULT) {
syslog(LOG_NOTICE, "MEM Error: EFAULT\n");
} else if (errno == EINVAL) {
syslog(LOG_NOTICE, "MEM Error: EINVAL\n");
} else {
syslog(LOG_NOTICE, "MEM %ld %ld", elapsed.tv_sec, memory->ru_maxrss);
}
pthread_mutex_unlock(&mutex);
}
// ANSI Control codes to go back to the
// previous line and clear it.
fprintf(stderr, "\033[F");
fprintf(stderr, "\r");
//fflush(stderr);
}
void *barra_de_progreso()
{
static long sleeptime = 2000000;
if (options.log) {
sleeptime = 5000000;
}
while (running) {
usleep(10000);
if (options.index != NULL) {
loadBar(ftello(NDLTfile(ndldata)), ndldata->bytesTotalesFicheros, ndldata->bytesTotalesFicheros, 40);
} else {
loadBar(ndldata->bytesTotalesLeidos, ndldata->bytesTotalesFicheros, ndldata->bytesTotalesFicheros, 40);
}
usleep(sleeptime);
}
return NULL;
}
int parse_packet(const u_char *packet, const struct NDLTpkthdr *pkthdr, packet_info *pktinfo)
{
// ERR_MSG("DEBUG/ begining parse_packet().\n");
size_t size_ethernet = SIZE_ETHERNET;
memset(pktinfo->url, 0, URL_SIZE);
pktinfo->ethernet = (struct sniff_ethernet *)(packet);
//VLAN
if (pktinfo->ethernet->ether_type == 0x81) {
size_ethernet += 4;
}
// if (pktinfo->ethernet->ether_type == ){
// }
pktinfo->ip = (struct sniff_ip *)(packet + size_ethernet);
pktinfo->size_ip = IP_HL(pktinfo->ip) * 4;
if (pktinfo->size_ip < 20) {
return 1;
}
if (pkthdr->caplen < (size_ethernet + pktinfo->size_ip + 20)) {
return 1;
}
if(pktinfo->ip->ip_p != IPPROTO_TCP){ //CHECK FOR TCP
return 1;
}
pktinfo->tcp = (struct sniff_tcp*)(packet + size_ethernet + pktinfo->size_ip);
pktinfo->size_tcp = TH_OFF(pktinfo->tcp)*4;
pktinfo->port_src = ntohs(pktinfo->tcp->th_sport); /* source port */
pktinfo->port_dst = ntohs(pktinfo->tcp->th_dport); /* destination port */
pktinfo->tcp->th_seq = ntohl(pktinfo->tcp->th_seq);
pktinfo->tcp->th_ack = ntohl(pktinfo->tcp->th_ack);
if (pktinfo->size_tcp < 20) {
return 1;
}
pktinfo->payload = (u_char *)(packet + size_ethernet + pktinfo->size_ip + pktinfo->size_tcp);
pktinfo->size_payload = pkthdr->caplen - size_ethernet - pktinfo->size_ip - pktinfo->size_tcp;
pktinfo->ts.tv_sec = pkthdr->ts.tv_sec;
pktinfo->ts.tv_nsec = pkthdr->ts.tv_nsec;
if (http_parse_packet(pktinfo->payload, (int) pktinfo->size_payload, &http, pktinfo->ip->ip_src, pktinfo->ip->ip_dst) == -1) {
http_clean_up(&http);
return 1;
}
if (pktinfo->size_payload <= 0) {
pktinfo->request = -1;
http_clean_up(&http);
return 1;
}
pktinfo->op = http_get_op(http);
if (pktinfo->op == RESPONSE) {
pktinfo->request = 0;
pktinfo->responseCode = http_get_response_code(http);
strncpy(pktinfo->response_msg, http_get_response_msg(http), RESP_MSG_SIZE);
pktinfo->response_msg[RESP_MSG_SIZE - 1] = 0;
} else if (http_is_request(pktinfo->op)) {
char *host = http_get_host(http);
char *agent = http_get_agent(http);
char *uri = http_get_uri(http);
strcpy(pktinfo->agent, agent);
strcpy(pktinfo->host, host);
strcpy(pktinfo->url, uri);
if (options.url != NULL) {
if (boyermoore_search(pktinfo->url, options.url) == NULL) {
http_clean_up(&http);
// ERR_MSG("DEBUG/ finish parse_packet(). boyermoore_search url returned NULL\n");
return 1;
}
}
if (options.host != NULL) {
if (boyermoore_search(pktinfo->host, options.host) == NULL) {
http_clean_up(&http);
// ERR_MSG("DEBUG/ finish parse_packet(). boyermoore_search host returned NULL\n");
return 1;
}
}
pktinfo->request = 1;
} else {
pktinfo->request = -1;
}
// ERR_MSG("DEBUG/ calling http_clean_up().\n");
http_clean_up(&http);
// ERR_MSG("DEBUG/ finish parse_packet().\n");
return 0;
}
void index_callback(u_char *useless, const struct NDLTpkthdr *pkthdr, const u_char *packet)
{
static unsigned long current_interval = 0;
static bool in_interval = false;
static interval i;
//PROCESSING A NEW INTERVAL
if (!in_interval && current_interval < interval_ctr) {
i = intervals[current_interval];
if (NDLTjumpToPacket(ndldata, i.start_packet) == 0) {
//ERR
fprintf(stderr, "ERROR JUMPING IN FILE %llu\n", i.start_packet);
exit(1);
}
in_interval = true;
} else {
if (pkthdr->ts.tv_sec > i.end_ts) {
in_interval = false;
current_interval++;
} else {
callback(useless, pkthdr, packet);
}
}
return;
}
u_int64_t pkts, bytes;
u_int32_t last_sec = 0;
u_int32_t nn_packets = 0;
#define PAYLOAD_AUX_SIZE 1800
u_char *payload_aux = NULL;
void hpcap_callback(u_int8_t *payload, struct pcap_pkthdr *header, void *arg)
{
struct NDLTpkthdr pkthdr2;
pkthdr2.caplen = header->caplen;
pkthdr2.len = header->len;
pkthdr2.ts.tv_sec = header->ts.tv_sec;
pkthdr2.ts.tv_nsec = header->ts.tv_usec * 1000;
memset(payload_aux, 0, PAYLOAD_AUX_SIZE);
memcpy(payload_aux, payload, PAYLOAD_AUX_SIZE > pkthdr2.caplen ? pkthdr2.caplen : PAYLOAD_AUX_SIZE);
callback(arg, &pkthdr2, payload_aux);
return;
}
void online_callback(u_char *useless, const struct pcap_pkthdr *pkthdr, const u_char *packet)
{
struct NDLTpkthdr pkthdr2;
pkthdr2.caplen = pkthdr->caplen;
pkthdr2.len = pkthdr->len;
pkthdr2.ts.tv_sec = pkthdr->ts.tv_sec;
pkthdr2.ts.tv_nsec = pkthdr->ts.tv_usec * 1000;
callback(useless, &pkthdr2, packet);
return;
}
void callback(u_char *useless, const struct NDLTpkthdr *pkthdr, const u_char *packet)
{
//LOCK
pthread_mutex_lock(&mutex);
if (unlikely((getGottenRequests() / ((float) REQUEST_POOL)) > 0.6)) {
if (unlikely(options.verbose)) {
fprintf(stderr, "DEBUG/ ==============================\n");
fprintf(stderr, "DEBUG/ Elements active in table hash before removing entries: %"PRIu32"\n", active_session_list_size);
}
unsigned long removed = remove_old_active_nodes(last_packet);
increment_total_removed_requests(removed);
if (unlikely(options.verbose)) {
fprintf(stderr, "DEBUG/ Elements active in table hash after removing entries: %"PRIu32" Removed: %ld\n", active_session_list_size, removed);
fprintf(stderr, "DEBUG/ ==============================\n\n");
}
}
if (first_packet.tv_sec == 0) {
first_packet = pkthdr->ts;
fprintf(stderr, "First Packet. Caplen: %"PRIu32", Len: %"PRIu32"\n", pkthdr->caplen, pkthdr->len);
}
if (pkthdr->caplen > max_caplen) {
max_caplen = pkthdr->caplen;
}
if (pkthdr->len > max_len) {
max_len = pkthdr->len;
}
last_packet = pkthdr->ts;
packets++;
if (packets % options.skip != 0) {
pthread_mutex_unlock(&mutex);
return;
}
memset(pktinfo, 0, sizeof(packet_info));
int ret = parse_packet(packet, pkthdr, pktinfo);
if (ret) {
pthread_mutex_unlock(&mutex);
return;
}
if (pktinfo->request == -1) { //NI GET NI RESPONSE
pthread_mutex_unlock(&mutex);
return;
}
if (insertPacket(pktinfo) != 0) {
decrement_inserts();
}
increment_inserts();
pthread_mutex_unlock(&mutex);
}
//////ADDED
uint32_t *variance_data = NULL;
int variance_packets = 0;
int indexCompareFunction(const void *a, const void *b)
{
return (*(uint32_t *)a - * (uint32_t *)b);
}
void reset()
{
freeNodelPool();
freeConnectionPool();
freeRequestPool();
http_free_packet(&http);
FREE(session_table);
FREE(pktinfo);
active_session_list_size = 0;
max_active_session_list_size = 0;
active_session_list = NULL;
reset_counters();
//HTTP
http_alloc(&http);
//NEW
allocConnectionPool();
allocRequestPool();
// allocResponsePool();
allocNodelPool();
pktinfo = (packet_info *) calloc(sizeof(packet_info), 1);
// if(resized_session_table){
// session_table = (collision_list*) calloc(BIG_MAX_FLOWS_TABLE_SIZE, sizeof(collision_list));
// }else{
session_table = (collision_list *) calloc(MAX_FLOWS_TABLE_SIZE, sizeof(collision_list));
// }
}
///////END ADDED
int main(int argc, char *argv[])
{
#ifdef LOW_MEMORY_DISSECTOR
fprintf(stderr, "httpDissector: %s LOW MEMORY MODE\n", version);
#endif
#ifndef LOW_MEMORY_DISSECTOR
fprintf(stderr, "httpDissector: %s\n", version);
#endif
//GET
//POST
//HEAD
//PUT
//DELETE
//PATCH
//TRACE
//OPTIONS
//HTTP
filter = strdup("tcp and ((tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420 \
or tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x504F5354 \
or tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x48454144 \
or tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x50555420 \
or (tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x44454c45 && tcp[((tcp[12:1] & 0xf0) >> 2) + 4:2] = 0x5445) \
or (tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x50415443 && tcp[((tcp[12:1] & 0xf0) >> 2) + 4:2] = 0x4820) \
or (tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x54524143 && tcp[((tcp[12:1] & 0xf0) >> 2) + 4:2] = 0x4520) \
or (tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x4f505449 && tcp[((tcp[12:1] & 0xf0) >> 2) + 4:4] = 0x4f4e5320) \
or (tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x434f4e4e && tcp[((tcp[12:1] & 0xf0) >> 2) + 4:4] = 0x45435420) \
or tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x48545450))");
options = parse_args(argc, argv);
if (options.err == -3) {
how_to_use(argv[0]);
FREE(filter);
filter = NULL;
return 0;
}
if (options.err < 0) {
fprintf(stderr, "\nError: %s\n", options.errbuf);
how_to_use(argv[0]);
FREE(filter);
filter = NULL;
return -1;
}
if (options.version) {
fprintf(stderr, "%s\n", version);
return 0;
}
if (options.raw == 1) {
strcpy(format, NDLTFORMAT_DRIV_STR);
} else {
strcpy(format, NDLTFORMAT_PCAP_STR);
}
if (options.filter != NULL) {
switch (options.filter_mode) {
case OR:
filter = (char *) realloc(filter, (strlen(filter) + strlen(options.filter) + 6) * sizeof(char));
strcat(filter, " or ");
strcat(filter, options.filter);
break;
case AND: {
char *filter_aux = (char *) calloc((strlen(filter) + strlen(options.filter) + 6), sizeof(char));
strcat(filter_aux, options.filter);
strcat(filter_aux, " and ");
strcat(filter_aux, filter);
char *aux = filter;
filter = filter_aux;
free(aux);
}
break;
case OVERWRITE:
free(filter);
filter = strdup(options.filter);
break;
}
}
if (options.debug != 0) {
fprintf(stderr, "DEBUG/ Activated\n");
fprintf(stderr, "DEBUG/ RAW: %s\n", options.raw ? "true" : "false");
fprintf(stderr, "DEBUG/ Files: %s\n", options.files ? "true" : "false");
fprintf(stderr, "DEBUG/ Log: %s\n", options.log ? "true" : "false");
fprintf(stderr, "DEBUG/ Input File: %s\n", options.input);
fprintf(stderr, "DEBUG/ Output File: %s\n", options.output ? options.output : "STDOUT");
fprintf(stderr, "DEBUG/ Version: %s\n", version);
fprintf(stderr, "DEBUG/ Verbose: %s\n", options.verbose ? "true" : "false");
fprintf(stderr, "DEBUG/ Interface: %s\n", options.interface ? options.interface : "false");
fprintf(stderr, "DEBUG/ TwoLines: %s\n", options.twolines ? "true" : "false");
fprintf(stderr, "DEBUG/ RRD: %s\n", options.rrd ? "true" : "false");
fprintf(stderr, "DEBUG/ Debug: %d\n", options.debug);
fprintf(stderr, "DEBUG/ Index: %s\n", options.index);
fprintf(stderr, "DEBUG/ Filter: %s\n", filter);
fprintf(stderr, "\n");
}
if (options.output != NULL) {
if (options.binary) {
output = fopen(options.output, "wb");
} else {
output = fopen(options.output, "w");
}
if (output == NULL) {
fprintf(stderr, "ERROR TRYING TO OPEN THE OUTPUT FILE\n");
FREE(filter);
return -2;
}
} else {
output = stdout;
}
if (options.gcoutput != NULL) {
gcoutput = fopen(options.gcoutput, "w");
if (output == NULL) {
fprintf(stderr, "ERROR TRYING TO OPEN THE GC-OUTPUT FILE\n");
FREE(filter);
return -8;
}
}
// if(options.index != NULL){
// index_file = fopen(options.index, "w");
// if(index_file == NULL){
// fprintf(stderr, "ERROR TRYING TO OPEN THE INDEX FILE\n");
// FREE(filter);
// return -8;
// }
// }
if (options.files) {
files_path = parse_list_of_files(options.input, &nFiles);
if (files_path == NULL) {
fprintf(stderr, "Failure parsing list of files\n");
return -1;
}
}
//INICIALIZO TABLA
session_table = (collision_list *) calloc(MAX_FLOWS_TABLE_SIZE, sizeof(collision_list));
//HTTP
http_alloc(&http);
//NEW
allocConnectionPool();
allocRequestPool();
// allocResponsePool();
allocNodelPool();
//PACKET_INFO
pktinfo = (packet_info *) calloc(sizeof(packet_info), 1);
//PAYLOAD_AUX
payload_aux = (u_char *) malloc(sizeof(u_char) * PAYLOAD_AUX_SIZE);
//SORTED PRINT LIST
if (options.sorted) {
initPrintElementList();
}
//USING INDEX FILE
if (options.index != NULL && !options.files) {
intervals = read_index(options.index, options.input, &interval_ctr);
if (interval_ctr == 0) {
fprintf(stderr, "\nFile not big enough to use indices.\n\n");
options.index = NULL;
}
}
main_process(format, options.input);
if (options.output != NULL) {
fclose(output);
}
if (options.gcoutput != NULL) {
fclose(gcoutput);
}
if (files_path != NULL) {
int i = 0;
for (i = 0; i < nFiles; i++) {
FREE(files_path[i]);
}
FREE(files_path);
files_path = NULL;
}
if (options.index != NULL) {
FREE(intervals);
}
// freeConnectionPool();
// freeRequestPool();
// freeNodelPool();
FREE(session_table);
return 0;
}
int main_process(char *format, char *filename)
{
global_filename = filename;
struct bpf_program fp;
if (options.log) {
if (options.interface != NULL) {
options.log = 0;
} else {
setlogmask(LOG_UPTO(LOG_DEBUG));
openlog("httpDissector", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL1);
syslog(LOG_NOTICE, "Log started by process: %d", getpid());
syslog(LOG_NOTICE, "Reading file: %s", filename);
syslog(LOG_NOTICE, "SPEED secs\tspeed");
syslog(LOG_NOTICE, "MEM secs memory (kb)");
memory = malloc(sizeof(struct rusage));
}
}
char errbuf[PCAP_ERRBUF_SIZE] = {0};
if (options.hpcap != -1) {
#ifdef HPCAP_SUPPORT
hpcap_packet_online_loop(options.hpcap, options.hpcap_ifindex, options.hpcap_qindex, hpcap_callback, NULL);
exit(-1);
#endif
#ifndef HPCAP_SUPPORT
fprintf(stderr, "NO HPCAP SUPPORT IN THIS COMPILED VERSION. PLEASE, RECOMPILE WITH make httpDissectorHPCAP.\n");
exit(-2);
#endif
} else if (options.interface == NULL) {
ERR_MSG("DEBUG/ Before calling NDLTabrirTraza()\n");
if (options.files) {
ndldata = NDLTabrirTraza(filename, format, filter, 1, errbuf);
} else {
ndldata = NDLTabrirTraza(filename, format, filter, 0, errbuf);
}
if (ndldata == NULL) {
fprintf(stderr, "NULL WHILE OPENING NDL FILE: %s\n", errbuf);
fprintf(stderr, "File: %s\tRAW flag = %s\n", options.input, options.raw == 0 ? "false" : "true");
return -1;
}
if (options.raw != 1 && !options.files) {
fprintf(stderr, "Snapshot length: %d\n", pcap_snapshot(ndldata->traceFile.ph));
}
if (options.discards != NULL) {
if (!NDLTopenFileDiscards(ndldata, options.discards, errbuf)) {
fprintf(stderr, "ERROR WHILE OPENING DISCARDS FILE (%s): %s\n", options.discards, errbuf);
return -1;
}
}
ERR_MSG("DEBUG/ After calling NDLTabrirTraza()\n");
} else { //READ FROM INTERFACE
ERR_MSG("DEBUG/ calling pcap_open_live()\n");
handle = pcap_open_live(options.interface, SNAPLEN, PROMISC, to_MS, errbuf);
if (handle == NULL) {
fprintf(stderr, "Couldn't open device %s: %s\n", options.interface, errbuf);
return -2;
}
ERR_MSG("DEBUG/ calling pcap_compile()\n");
if (pcap_compile(handle, &fp, filter, 1, 0) == -1) {
fprintf(stderr, "Couldn't parse filter, %s\n|%s|", pcap_geterr(handle), filter);
return -3;
}
ERR_MSG("DEBUG/ calling pcap_setfilter()\n");
if (pcap_setfilter(handle, &fp) == -1) {
fprintf(stderr, "Couldn't install filter, %s\n", pcap_geterr(handle));
return -4;
}
}
ERR_MSG("DEBUG/ Creating hash table\n");
//creamos los hilos
ERR_MSG("DEBUG/ Creating collector thread\n");
//RECOLECTOR
if (options.collector) {