mirror of
https://github.com/hufrea/byedpi.git
synced 2024-11-28 11:18:53 +03:00
Check not sent bytes, --ip-opt
This commit is contained in:
ruti
parent
ca03b1d311
commit
56a9043dd6
5 changed files with 96 additions and 16 deletions
84
desync.c
84
desync.c
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@ -76,9 +76,46 @@ static inline void delay(long ms)
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#define delay(ms) Sleep(ms)
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#endif
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#ifdef __linux__
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void wait_send(int sfd)
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{
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for (int i = 0; params.wait_send; i++) {
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struct {
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uint8_t state;
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uint8_t r[3];
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uint32_t rr[35];
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uint32_t notsent_bytes;
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} tcpi = {};
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socklen_t ts = sizeof(tcpi);
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if (getsockopt(sfd, IPPROTO_TCP,
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TCP_INFO, (char *)&tcpi, &ts) < 0) {
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perror("getsockopt TCP_INFO");
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break;
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}
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if (ts < sizeof(tcpi)) {
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LOG(LOG_E, "tcpi_notsent_bytes not provided\n");
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params.wait_send = 0;
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break;
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}
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if (tcpi.state != 1) {
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LOG(LOG_E, "state: %d\n", tcpi.state);
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return;
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}
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if (tcpi.notsent_bytes == 0) {
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return;
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}
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LOG(LOG_S, "not sent after %d ms\n", i);
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delay(1);
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}
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delay(params.sfdelay);
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}
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#else
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#define wait_send(sfd) delay(params.sfdelay)
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#endif
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#ifdef __linux__
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int send_fake(int sfd, char *buffer,
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int cnt, long pos, int fa, int ttl)
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int cnt, long pos, int fa, struct desync_params *opt)
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{
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struct packet pkt = cnt != IS_HTTP ? fake_tls : fake_http;
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size_t psz = pkt.size;
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@ -104,19 +141,31 @@ int send_fake(int sfd, char *buffer,
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}
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memcpy(p, pkt.data, psz < pos ? psz : pos);
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if (setttl(sfd, ttl, fa) < 0) {
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if (setttl(sfd, opt->ttl ? opt->ttl : 8, fa) < 0) {
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break;
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}
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if (opt->ip_options
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&& setsockopt(sfd, IPPROTO_IP, IP_OPTIONS,
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opt->ip_options, opt->ip_options_len) < 0) {
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perror("setsockopt IP_OPTIONS");
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break;
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}
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if (sendfile(sfd, ffd, 0, pos) < 0) {
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uniperror("sendfile");
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break;
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}
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delay(params.sfdelay);
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wait_send(sfd);
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memcpy(p, buffer, pos);
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if (setttl(sfd, params.def_ttl, fa) < 0) {
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break;
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}
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if (opt->ip_options
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&& setsockopt(sfd, IPPROTO_IP,
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IP_OPTIONS, opt->ip_options, 0) < 0) {
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perror("setsockopt IP_OPTIONS");
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break;
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}
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status = 0;
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}
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if (p) munmap(p, pos);
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@ -127,7 +176,7 @@ int send_fake(int sfd, char *buffer,
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#ifdef _WIN32
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int send_fake(int sfd, char *buffer,
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int cnt, long pos, int fa, int ttl)
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int cnt, long pos, int fa, struct desync_params *opt)
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{
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struct packet pkt = cnt != IS_HTTP ? fake_tls : fake_http;
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size_t psz = pkt.size;
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@ -180,7 +229,13 @@ int send_fake(int sfd, char *buffer,
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uniperror("SetFilePointer");
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break;
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}
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if (setttl(sfd, ttl, fa) < 0) {
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if (setttl(sfd, opt->ttl ? opt->ttl : 8, fa) < 0) {
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break;
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}
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if (opt->ip_options
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&& setsockopt(sfd, IPPROTO_IP, IP_OPTIONS,
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opt->ip_options, opt->ip_options_len) < 0) {
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perror("setsockopt IP_OPTIONS");
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break;
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}
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if (!TransmitFile(sfd, hfile, pos, pos, &ov,
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@ -204,6 +259,12 @@ int send_fake(int sfd, char *buffer,
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if (setttl(sfd, params.def_ttl, fa) < 0) {
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break;
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}
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if (opt->ip_options
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&& setsockopt(sfd, IPPROTO_IP, IP_OPTIONS,
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opt->ip_options, 0) < 0) {
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perror("setsockopt IP_OPTIONS");
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break;
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}
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status = 0;
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}
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if (!CloseHandle(hfile)) {
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@ -231,17 +292,14 @@ int send_oob(int sfd, char *buffer,
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return -1;
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}
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buffer[pos] = rchar;
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if (size) {
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delay(params.sfdelay);
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}
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wait_send(sfd);
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for (long i = 0; i < size; i++) {
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if (send(sfd, data + i, 1, MSG_OOB) < 0) {
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uniperror("send");
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return -1;
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}
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if (size != 1) {
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delay(params.sfdelay);
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}
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wait_send(sfd);
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}
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return 0;
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}
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@ -267,7 +325,7 @@ int send_disorder(int sfd,
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}
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int desync(int sfd, char *buffer, size_t bfsize,
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ssize_t desync(int sfd, char *buffer, size_t bfsize,
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ssize_t n, ssize_t offset, struct sockaddr *dst, int dp_c)
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{
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struct desync_params dp = params.dp[dp_c];
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@ -364,7 +422,7 @@ int desync(int sfd, char *buffer, size_t bfsize,
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#ifdef FAKE_SUPPORT
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case DESYNC_FAKE:
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s = send_fake(sfd,
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buffer + lp, type, pos - lp, fa, dp.ttl ? dp.ttl : 8);
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buffer + lp, type, pos - lp, fa, &dp);
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break;
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#endif
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case DESYNC_DISORDER:
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2
desync.h
2
desync.h
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@ -1 +1 @@
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int desync(int sfd, char *buffer, size_t bfsize, ssize_t n, ssize_t offset, struct sockaddr *dst, int dp_c);
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ssize_t desync(int sfd, char *buffer, size_t bfsize, ssize_t n, ssize_t offset, struct sockaddr *dst, int dp_c);
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16
main.c
16
main.c
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@ -39,6 +39,7 @@ oob_data = {
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struct params params = {
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.sfdelay = 3,
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.wait_send = 1,
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.def_ttl = 0,
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.custom_ttl = 0,
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.de_known = 0,
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@ -85,6 +86,7 @@ const char help_text[] = {
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#ifdef FAKE_SUPPORT
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" -f, --fake <n[+s]> Split and send fake packet\n"
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" -t, --ttl <num> TTL of fake packets, default 8\n"
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" -k, --ip-opt <f|:str> IP options of fake packets\n"
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" -l, --fake-tls <f|:str>\n"
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" -j, --fake-http <f|:str> Set custom fake packet\n"
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" -n, --tls-sni <str> Change SNI in fake ClientHello\n"
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@ -123,6 +125,7 @@ const struct option options[] = {
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#ifdef FAKE_SUPPORT
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{"fake", 1, 0, 'f'},
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{"ttl", 1, 0, 't'},
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{"ip-opt", 1, 0, 'k'},
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{"fake-tls", 1, 0, 'l'},
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{"fake-http", 1, 0, 'j'},
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{"tls-sni", 1, 0, 'n'},
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@ -132,6 +135,7 @@ const struct option options[] = {
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{"tlsrec", 1, 0, 'r'},
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{"def-ttl", 1, 0, 'g'},
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{"delay", 1, 0, 'w'}, //
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{"not-wait-send", 1, 0, 'W'}, //
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{0}
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};
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@ -484,6 +488,14 @@ int main(int argc, char **argv)
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dp->ttl = val;
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break;
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case 'k':
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dp->ip_options = ftob(optarg, &dp->ip_options_len);
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if (!dp->ip_options) {
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uniperror("read/parse");
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return -1;
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}
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break;
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case 'n':
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if (change_tls_sni(optarg, fake_tls.data, fake_tls.size)) {
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fprintf(stderr, "error chsni\n");
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@ -568,6 +580,10 @@ int main(int argc, char **argv)
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invalid = 1;
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break;
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case 'W':
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params.wait_send = 0;
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break;
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case 0:
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break;
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3
params.h
3
params.h
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@ -31,6 +31,8 @@ struct part {
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struct desync_params {
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int ttl;
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char *ip_options;
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ssize_t ip_options_len;
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int parts_n;
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struct part *parts;
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int mod_http;
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@ -43,6 +45,7 @@ struct params {
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int dp_count;
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struct desync_params *dp;
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long sfdelay;
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char wait_send;
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int def_ttl;
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char custom_ttl;
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5
proxy.c
5
proxy.c
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@ -350,6 +350,9 @@ int create_conn(struct poolhd *pool,
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return -1;
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}
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int status = connect(sfd, &addr.sa, sizeof(addr));
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if (status == 0 && params.tfo) {
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LOG(LOG_S, "TFO supported!\n");
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}
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if (status < 0 &&
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get_e() != EINPROGRESS && get_e() != EAGAIN) {
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uniperror("connect");
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@ -733,7 +736,7 @@ int on_desync(struct poolhd *pool, struct eval *val,
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if (sn < 0) {
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return -1;
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}
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if (sn != n) {
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if (sn < n) {
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val->buff.offset = sn;
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if (mod_etype(pool, val->pair, POLLOUT, 1)) {
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uniperror("mod_etype");
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