mirror of
https://github.com/Waujito/youtubeUnblock.git
synced 2024-12-22 06:15:31 +00:00
commandline options
This commit is contained in:
zabbius
parent
255371cbaa
commit
69955d5237
23
config.h
23
config.h
@ -20,31 +20,26 @@
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#define FRAGMENTATION_STRATEGY FRAG_STRAT_TCP
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#endif
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#if FRAGMENTATION_STRATEGY == FRAG_STRAT_TCP
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#define USE_TCP_SEGMENTATION
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#elif FRAGMENTATION_STRATEGY == FRAG_STRAT_IP
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#define USE_IP_FRAGMENTATION
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#elif FRAGMENTATION_STRATEGY == FRAG_STRAT_NONE
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#define USE_NO_FRAGMENTATION
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#endif
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#define RAWSOCKET_MARK (1 << 15)
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#ifdef USE_SEG2_DELAY
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#define SEG2_DELAY 100
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#endif
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#ifndef NO_FAKE_SNI
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#define FAKE_SNI
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#endif
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#define FAKE_SNI_TTL 8
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// No fake SNI
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#define FKSN_STRAT_NONE 0
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// Will invalidate fake client hello by out-of-ack_seq out-of-seq request
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#define FKSN_STRAT_ACK_SEQ 0
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#define FKSN_STRAT_ACK_SEQ 1
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// Will assume that GGC server is located further than FAKE_SNI_TTL
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// Thus, Fake Client Hello will be eliminated automatically.
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#define FKSN_STRAT_TTL 1
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#define FKSN_STRAT_TTL 2
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#ifndef NO_FAKE_SNI
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#define FAKE_SNI_STRATEGY FKSN_STRAT_NONE
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#endif
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#ifndef FAKE_SNI_STRATEGY
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#define FAKE_SNI_STRATEGY FKSN_STRAT_ACK_SEQ
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443
youtubeUnblock.c
443
youtubeUnblock.c
@ -34,11 +34,134 @@ static struct {
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int rawsocket;
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pthread_mutex_t rawsocket_lock;
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int threads;
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bool use_gso;
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int fragmentation_strategy;
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uint8_t fake_sni_ttl;
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int fake_sni_strategy;
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bool verbose;
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uint32_t seg2_delay;
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} config = {
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.rawsocket = -2,
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.threads = THREADS_NUM
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.threads = THREADS_NUM,
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.fragmentation_strategy = FRAGMENTATION_STRATEGY,
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.fake_sni_strategy = FAKE_SNI_STRATEGY,
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.fake_sni_ttl = FAKE_SNI_TTL,
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#ifdef SEG2_DELAY
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.seg2_delay = SEG2_DELAY,
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#else
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.seg2_delay = 0,
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#endif
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#ifdef USE_GSO
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.use_gso = true,
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#else
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.use_gso = false,
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#endif
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#ifdef DEBUG
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.verbose = true,
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#else
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.verbose = false,
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#endif
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};
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const char* get_value(const char *option, const char *prefix)
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{
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size_t prefix_len = strlen(prefix);
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size_t option_len = strlen(option);
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if (option_len < prefix_len || memcmp(prefix, option, prefix_len))
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return 0;
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return option + prefix_len;
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}
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bool parse_bool_option(const char *value) {
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errno = 0;
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if (strcmp(value, "1") == 0) {
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return true;
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}
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else if (strcmp(value, "0") == 0) {
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return false;
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}
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errno = EINVAL;
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return false;
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}
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uint32_t parse_uint_option(const char* value) {
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char* end;
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uint32_t result = strtoul(value, &end, 10);
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if (*end != '\0') {
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errno = EINVAL;
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return -1;
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}
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return result;
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}
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bool parse_option(const char* option) {
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const char* value;
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if ((value = get_value(option, "--gso=")) != 0) {
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config.use_gso = parse_bool_option(value);
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return errno == 0;
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}
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if ((value = get_value(option, "--verbose=")) != 0) {
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config.verbose = parse_bool_option(value);
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return errno == 0;
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}
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if ((value = get_value(option, "--frag=")) != 0) {
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if (strcmp(value, "tcp") == 0) {
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config.fragmentation_strategy = FRAG_STRAT_TCP;
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}
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else if (strcmp(value, "ip") == 0) {
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config.fragmentation_strategy = FRAG_STRAT_IP;
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}
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else if (strcmp(value, "none") == 0) {
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config.fragmentation_strategy = FRAG_STRAT_NONE;
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}
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else {
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return false;
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}
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return true;
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}
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if ((value = get_value(option, "--fake-sni=")) != 0) {
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if (strcmp(value, "ack") == 0) {
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config.fake_sni_strategy = FKSN_STRAT_ACK_SEQ;
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}
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else if (strcmp(value, "ttl") == 0) {
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config.fake_sni_strategy = FKSN_STRAT_TTL;
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}
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else if (strcmp(value, "none") == 0) {
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config.fake_sni_strategy = FKSN_STRAT_NONE;
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}
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else {
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return false;
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}
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return true;
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}
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if ((value = get_value(option, "--seg2delay=")) != 0) {
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config.seg2_delay = parse_uint_option(value);
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return errno == 0;
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}
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if ((value = get_value(option, "--threads=")) != 0) {
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config.threads = parse_uint_option(value);
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return errno == 0 && config.threads <= MAX_THREADS;
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}
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if ((value = get_value(option, "--fake-sni-ttl=")) != 0) {
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config.fake_sni_ttl = parse_uint_option(value);
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return errno == 0;
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}
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return false;
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}
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static int parse_args(int argc, const char *argv[]) {
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int err;
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char *end;
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@ -48,15 +171,29 @@ static int parse_args(int argc, const char *argv[]) {
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goto errormsg_help;
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}
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uint32_t queue_num = strtoul(argv[1], &end, 10);
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if (errno != 0 || *end != '\0') goto errormsg_help;
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config.queue_start_num = parse_uint_option(argv[1]);
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if (errno != 0) goto errormsg_help;
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for (int i = 2; i < argc; i++) {
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if (!parse_option(argv[i])) {
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printf("Invalid option %s\n", argv[i]);
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goto errormsg_help;
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}
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}
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config.queue_start_num = queue_num;
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return 0;
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errormsg_help:
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err = errno;
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printf("Usage: %s [queue_num]\n", argv[0]);
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printf("Usage: %s <queue_num> [OPTIONS]\n", argv[0]);
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printf("Options:\n");
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printf("\t--gso={0,1}\n");
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printf("\t--fake-sni={ack,ttl,none}\n");
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printf("\t--fake-sni-ttl=<ttl>\n");
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printf("\t--frag={tcp,ip,none}\n");
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printf("\t--seg2delay=<delay>\n");
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printf("\t--threads=<threads number>\n");
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printf("\t--verbose={0,1}\n");
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errno = err;
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if (errno == 0) errno = EINVAL;
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@ -154,36 +291,38 @@ static int send_raw_socket(const uint8_t *pkt, uint32_t pktlen) {
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int ret;
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if (pktlen > AVAILABLE_MTU) {
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#ifdef DEBUG
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printf("Split packet!\n");
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#endif
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if (config.verbose)
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printf("Split packet!\n");
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uint8_t buff1[MNL_SOCKET_BUFFER_SIZE];
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uint32_t buff1_size = MNL_SOCKET_BUFFER_SIZE;
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uint8_t buff2[MNL_SOCKET_BUFFER_SIZE];
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uint32_t buff2_size = MNL_SOCKET_BUFFER_SIZE;
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#if defined(USE_TCP_SEGMENTATION) || defined(RAWSOCK_TCP_FSTRAT)
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if ((ret = tcp4_frag(pkt, pktlen, AVAILABLE_MTU-128,
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buff1, &buff1_size, buff2, &buff2_size)) < 0) {
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switch (config.fragmentation_strategy) {
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case FRAG_STRAT_TCP:
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if ((ret = tcp4_frag(pkt, pktlen, AVAILABLE_MTU-128,
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buff1, &buff1_size, buff2, &buff2_size)) < 0) {
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errno = -ret;
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return ret;
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}
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#elif defined(USE_IP_FRAGMENTATION) || defined(RAWSOCK_IP_FSTRAT)
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if ((ret = ip4_frag(pkt, pktlen, AVAILABLE_MTU-128,
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buff1, &buff1_size, buff2, &buff2_size)) < 0) {
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errno = -ret;
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return ret;
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}
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break;
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case FRAG_STRAT_IP:
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if ((ret = ip4_frag(pkt, pktlen, AVAILABLE_MTU-128,
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buff1, &buff1_size, buff2, &buff2_size)) < 0) {
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errno = -ret;
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return ret;
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errno = -ret;
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return ret;
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}
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break;
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default:
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errno = EINVAL;
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printf("send_raw_socket: Packet is too big but fragmentation is disabled! "
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"Pass -DRAWSOCK_TCP_FSTRAT or -DRAWSOCK_IP_FSTRAT as CFLAGS "
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"To enable it only for raw socket\n");
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return -EINVAL;
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}
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#else
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errno = EINVAL;
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printf("send_raw_socket: Packet is too big but fragmentation is disabled! "
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"Pass -DRAWSOCK_TCP_FSTRAT or -DRAWSOCK_IP_FSTRAT as CFLAGS "
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"To enable it only for raw socket\n");
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return -EINVAL;
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#endif
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int sent = 0;
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int status = send_raw_socket(buff1, buff1_size);
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@ -332,20 +471,16 @@ static int process_packet(const struct packet_data packet, struct queue_data qda
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nfq_nlmsg_verdict_put(verdnlh, packet.id, NF_ACCEPT);
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if (vrd.gvideo_hello) {
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#ifdef DEBUG
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printf("Google video!\n");
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#endif
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if (config.verbose)
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printf("Google video!\n");
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if (dlen > 1480) {
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#ifdef DEBUG
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fprintf(stderr, "WARNING! Google video packet is too big and may cause issues!\n");
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#endif
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if (config.verbose)
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fprintf(stderr, "WARNING! Google video packet is too big and may cause issues!\n");
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}
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#ifdef FAKE_SNI
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uint8_t fake_sni[MNL_SOCKET_BUFFER_SIZE];
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uint32_t fsn_len = MNL_SOCKET_BUFFER_SIZE;
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#endif
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uint8_t frag1[MNL_SOCKET_BUFFER_SIZE];
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uint8_t frag2[MNL_SOCKET_BUFFER_SIZE];
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@ -358,54 +493,59 @@ static int process_packet(const struct packet_data packet, struct queue_data qda
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nfq_tcp_compute_checksum_ipv4(
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(struct tcphdr *)tcph, (struct iphdr *)iph);
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#ifdef FAKE_SNI
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ret = gen_fake_sni(iph, tcph, fake_sni, &fsn_len);
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if (ret < 0) {
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errno = -ret;
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perror("gen_fake_sni");
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goto fallback;
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if (config.fake_sni_strategy != FKSN_STRAT_NONE) {
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ret = gen_fake_sni(iph, tcph, fake_sni, &fsn_len);
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if (ret < 0) {
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errno = -ret;
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perror("gen_fake_sni");
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goto fallback;
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}
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ret = send_raw_socket(fake_sni, fsn_len);
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if (ret < 0) {
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errno = -ret;
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perror("send fake sni");
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goto fallback;
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}
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}
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ret = send_raw_socket(fake_sni, fsn_len);
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if (ret < 0) {
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errno = -ret;
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perror("send fake sni");
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goto fallback;
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size_t ipd_offset;
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size_t mid_offset;
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switch (config.fragmentation_strategy) {
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case FRAG_STRAT_TCP:
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ipd_offset = vrd.sni_offset;
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mid_offset = ipd_offset + vrd.sni_len / 2;
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if ((ret = tcp4_frag(raw_payload, raw_payload_len,
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mid_offset, frag1, &f1len, frag2, &f2len)) < 0) {
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errno = -ret;
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perror("tcp4_frag");
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goto send_verd;
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}
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break;
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case FRAG_STRAT_IP:
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ipd_offset = ((char *)data - (char *)tcph) + vrd.sni_offset;
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mid_offset = ipd_offset + vrd.sni_len / 2;
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mid_offset += 8 - mid_offset % 8;
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if ((ret = ip4_frag(raw_payload, raw_payload_len,
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mid_offset, frag1, &f1len, frag2, &f2len)) < 0) {
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errno = -ret;
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perror("ip4_frag");
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goto send_verd;
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}
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break;
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default:
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ret = send_raw_socket(raw_payload, raw_payload_len);
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if (ret < 0) {
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errno = -ret;
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perror("raw pack send");
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}
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goto send_verd;
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}
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#endif
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|
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|
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#if defined(USE_TCP_SEGMENTATION)
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size_t ipd_offset = vrd.sni_offset;
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size_t mid_offset = ipd_offset + vrd.sni_len / 2;
|
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|
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if ((ret = tcp4_frag(raw_payload, raw_payload_len,
|
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mid_offset, frag1, &f1len, frag2, &f2len)) < 0) {
|
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errno = -ret;
|
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perror("tcp4_frag");
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goto send_verd;
|
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}
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#elif defined(USE_IP_FRAGMENTATION)
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size_t ipd_offset = ((char *)data - (char *)tcph) + vrd.sni_offset;
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size_t mid_offset = ipd_offset + vrd.sni_len / 2;
|
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mid_offset += 8 - mid_offset % 8;
|
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|
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if ((ret = ip4_frag(raw_payload, raw_payload_len,
|
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mid_offset, frag1, &f1len, frag2, &f2len)) < 0) {
|
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errno = -ret;
|
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perror("ip4_frag");
|
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goto send_verd;
|
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}
|
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|
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#else
|
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ret = send_raw_socket(raw_payload, raw_payload_len);
|
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if (ret < 0) {
|
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errno = -ret;
|
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perror("raw pack send");
|
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}
|
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goto send_verd;
|
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#endif
|
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|
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ret = send_raw_socket(frag2, f2len);
|
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if (ret < 0) {
|
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@ -415,34 +555,33 @@ static int process_packet(const struct packet_data packet, struct queue_data qda
|
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goto send_verd;
|
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}
|
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|
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#ifdef SEG2_DELAY
|
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struct dps_t *dpdt = malloc(sizeof(struct dps_t));
|
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dpdt->pkt = malloc(f1len);
|
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memcpy(dpdt->pkt, frag1, f1len);
|
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dpdt->pktlen = f1len;
|
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dpdt->timer = SEG2_DELAY;
|
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pthread_t thr;
|
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pthread_create(&thr, NULL, delay_packet_send, dpdt);
|
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pthread_detach(thr);
|
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#else
|
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ret = send_raw_socket(frag1, f1len);
|
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if (ret < 0) {
|
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errno = -ret;
|
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perror("raw frags send: frag1");
|
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|
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goto send_verd;
|
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if (config.seg2_delay) {
|
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struct dps_t *dpdt = malloc(sizeof(struct dps_t));
|
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dpdt->pkt = malloc(f1len);
|
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memcpy(dpdt->pkt, frag1, f1len);
|
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dpdt->pktlen = f1len;
|
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dpdt->timer = config.seg2_delay;
|
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pthread_t thr;
|
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pthread_create(&thr, NULL, delay_packet_send, dpdt);
|
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pthread_detach(thr);
|
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}
|
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else {
|
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ret = send_raw_socket(frag1, f1len);
|
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if (ret < 0) {
|
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errno = -ret;
|
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perror("raw frags send: frag1");
|
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|
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#endif
|
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|
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goto send_verd;
|
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}
|
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}
|
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}
|
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|
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|
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/*
|
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if (pktb_mangled(pktb)) {
|
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#ifdef DEBUG
|
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printf("Mangled!\n");
|
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#endif
|
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if (config.versose)
|
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printf("Mangled!\n");
|
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|
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nfq_nlmsg_verdict_put_pkt(
|
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verdnlh, pktb_data(pktb), pktb_len(pktb));
|
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}
|
||||
@ -533,10 +672,10 @@ int init_queue(int queue_num) {
|
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nlh = nfq_nlmsg_put(buf, NFQNL_MSG_CONFIG, queue_num);
|
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nfq_nlmsg_cfg_put_params(nlh, NFQNL_COPY_PACKET, 0xffff);
|
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|
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#ifdef USE_GSO
|
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if (config.use_gso) {
|
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mnl_attr_put_u32(nlh, NFQA_CFG_FLAGS, htonl(NFQA_CFG_F_GSO));
|
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mnl_attr_put_u32(nlh, NFQA_CFG_MASK, htonl(NFQA_CFG_F_GSO));
|
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#endif
|
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}
|
||||
|
||||
if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
|
||||
perror("mnl_socket_send");
|
||||
@ -609,69 +748,73 @@ int main(int argc, const char *argv[]) {
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
#if defined(USE_TCP_SEGMENTATION)
|
||||
printf("Using TCP segmentation\n");
|
||||
#elif defined(USE_IP_FRAGMENTATION)
|
||||
printf("Using IP fragmentation\n");
|
||||
#else
|
||||
printf("SNI fragmentation is disabled\n");
|
||||
#endif
|
||||
switch (config.fragmentation_strategy) {
|
||||
case FRAG_STRAT_TCP:
|
||||
printf("Using TCP segmentation\n");
|
||||
break;
|
||||
case FRAG_STRAT_IP:
|
||||
printf("Using IP fragmentation\n");
|
||||
break;
|
||||
default:
|
||||
printf("SNI fragmentation is disabled\n");
|
||||
break;
|
||||
}
|
||||
|
||||
#ifdef SEG2_DELAY
|
||||
printf("Some outgoing googlevideo request segments will be delayed for %d ms as of SEG2_DELAY define\n", SEG2_DELAY);
|
||||
#endif
|
||||
if (config.seg2_delay)
|
||||
printf("Some outgoing googlevideo request segments will be delayed for %d ms as of seg2_delay define\n", config.seg2_delay);
|
||||
|
||||
#ifdef FAKE_SNI
|
||||
printf("Fake SNI will be sent before each googlevideo request\n");
|
||||
switch (config.fake_sni_strategy) {
|
||||
case FKSN_STRAT_TTL:
|
||||
printf("Fake SNI will be sent before each googlevideo request, TTL strategy will be used with TTL %d\n", config.fake_sni_ttl);
|
||||
break;
|
||||
case FRAG_STRAT_IP:
|
||||
printf("Fake SNI will be sent before each googlevideo request, Ack-Seq strategy will be used\n");
|
||||
break;
|
||||
default:
|
||||
printf("SNI fragmentation is disabled\n");
|
||||
break;
|
||||
}
|
||||
|
||||
printf("Fake SNI will use strategy: "
|
||||
#if FAKE_SNI_STRATEGY == FKSN_STRAT_TTL
|
||||
"TTL"
|
||||
#else
|
||||
"Ack-Seq"
|
||||
#endif
|
||||
"\n");
|
||||
#endif
|
||||
|
||||
#ifdef USE_GSO
|
||||
printf("GSO is enabled!\n");
|
||||
#endif
|
||||
if (config.use_gso)
|
||||
printf("GSO is enabled\n");
|
||||
|
||||
if (open_raw_socket() < 0) {
|
||||
perror("Unable to open raw socket");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
struct queue_res *qres;
|
||||
|
||||
if (config.threads == 1) {
|
||||
struct queue_conf tconf = {
|
||||
.i = 0,
|
||||
.queue_num = config.queue_start_num
|
||||
};
|
||||
|
||||
#if THREADS_NUM == 1
|
||||
struct queue_conf tconf = {
|
||||
.i = 0,
|
||||
.queue_num = config.queue_start_num
|
||||
};
|
||||
|
||||
struct queue_res *qres = init_queue_wrapper(&tconf);
|
||||
#else
|
||||
struct queue_conf thread_confs[MAX_THREADS];
|
||||
pthread_t threads[MAX_THREADS];
|
||||
for (int i = 0; i < config.threads; i++) {
|
||||
struct queue_conf *tconf = thread_confs + i;
|
||||
pthread_t *thr = threads + i;
|
||||
|
||||
tconf->queue_num = config.queue_start_num + i;
|
||||
tconf->i = i;
|
||||
|
||||
pthread_create(thr, NULL, init_queue_wrapper, tconf);
|
||||
qres = init_queue_wrapper(&tconf);
|
||||
}
|
||||
else {
|
||||
printf("%d threads wil be used\n", config.threads);
|
||||
|
||||
void *res;
|
||||
struct queue_res *qres
|
||||
for (int i = 0; i < config.threads; i++) {
|
||||
pthread_join(threads[i], &res);
|
||||
struct queue_conf thread_confs[MAX_THREADS];
|
||||
pthread_t threads[MAX_THREADS];
|
||||
for (int i = 0; i < config.threads; i++) {
|
||||
struct queue_conf *tconf = thread_confs + i;
|
||||
pthread_t *thr = threads + i;
|
||||
|
||||
qres = res;
|
||||
tconf->queue_num = config.queue_start_num + i;
|
||||
tconf->i = i;
|
||||
|
||||
pthread_create(thr, NULL, init_queue_wrapper, tconf);
|
||||
}
|
||||
|
||||
void *res;
|
||||
for (int i = 0; i < config.threads; i++) {
|
||||
pthread_join(threads[i], &res);
|
||||
|
||||
qres = res;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
if (close_raw_socket() < 0) {
|
||||
perror("Unable to close raw socket");
|
||||
|
||||
Loading…
Reference in New Issue
Block a user