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nfqws: --dpi-desync-fake-unknown
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@ -153,6 +153,7 @@ nfqws takes the following parameters:
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--dpi-desync-any-protocol=0|1 ; 0(default)=desync only http and tls 1=desync any nonempty data packet
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--dpi-desync-fake-http=<filename> ; file containing fake http request. replacement for built-in
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--dpi-desync-fake-tls=<filename> ; file containing fake TLS ClientHello (for https). replacement for built-in
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--dpi-desync-fake-unknown=<filename> ; file containing unknown protocol fake payload. default is 256 zeroes
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--dpi-desync-cutoff=N ; apply dpi desync only to packet numbers less than N
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--hostlist=<filename> ; apply fooling only to the listed hosts (one host per line, subdomains auto apply)
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```
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@ -201,6 +201,7 @@ nfqws
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--dpi-desync-any-protocol=0|1 ; 0(default)=работать только по http request и tls clienthello 1=по всем непустым пакетам данных
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--dpi-desync-fake-http=<filename> ; файл, содержащий фейковый http запрос для dpi-desync=fake, на замену стандартному w3.org
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--dpi-desync-fake-tls=<filename> ; файл, содержащий фейковый tls clienthello для dpi-desync=fake, на замену стандартному w3.org
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--dpi-desync-fake-unknown=<filename> ; файл, содержащий фейковый пейлоад неизвестного протокола для dpi-desync=fake, на замену стандартным нулям 256 байт
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--dpi-desync-cutoff=N ; применять dpi desync только к исходящим пакетам по номеру меньше N
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--hostlist=<filename> ; применять дурение только к хостам из листа
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@ -230,8 +230,8 @@ packet_process_result dpi_desync_packet(uint8_t *data_pkt, size_t len_pkt, struc
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{
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if (!params.desync_any_proto) return res;
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DLOG("applying tampering to unknown protocol\n")
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fake = zeropkt;
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fake_size = 256;
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fake = params.fake_unknown;
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fake_size = params.fake_unknown_size;
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}
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if (bHaveHost)
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19
nfq/nfqws.c
19
nfq/nfqws.c
@ -499,6 +499,7 @@ static void exithelp()
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" --dpi-desync-any-protocol=0|1\t\t; 0(default)=desync only http and tls 1=desync any nonempty data packet\n"
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" --dpi-desync-fake-http=<filename>\t; file containing fake http request\n"
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" --dpi-desync-fake-tls=<filename>\t; file containing fake TLS ClientHello (for https)\n"
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" --dpi-desync-fake-unknown=<filename>\t; file containing unknown protocol fake payload\n"
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" --dpi-desync-cutoff=N\t\t\t; apply dpi desync only to packet numbers less than N\n"
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" --hostlist=<filename>\t\t\t; apply dpi desync only to the listed hosts (one host per line, subdomains auto apply)\n",
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CTRACK_T_SYN, CTRACK_T_EST, CTRACK_T_FIN,
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@ -552,6 +553,7 @@ int main(int argc, char **argv)
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memcpy(params.fake_tls,fake_tls_clienthello_default,params.fake_tls_size);
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params.fake_http_size = strlen(fake_http_request_default);
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memcpy(params.fake_http,fake_http_request_default,params.fake_http_size);
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params.fake_unknown_size = 256;
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params.wscale=-1; // default - dont change scale factor (client)
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params.ctrack_t_syn = CTRACK_T_SYN;
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params.ctrack_t_est = CTRACK_T_EST;
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@ -607,8 +609,9 @@ int main(int argc, char **argv)
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{"dpi-desync-any-protocol",optional_argument,0,0},// optidx=25
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{"dpi-desync-fake-http",required_argument,0,0},// optidx=26
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{"dpi-desync-fake-tls",required_argument,0,0},// optidx=27
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{"dpi-desync-cutoff",required_argument,0,0},// optidx=28
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{"hostlist",required_argument,0,0}, // optidx=29
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{"dpi-desync-fake-unknown",required_argument,0,0},// optidx=28
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{"dpi-desync-cutoff",required_argument,0,0},// optidx=29
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{"hostlist",required_argument,0,0}, // optidx=30
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{NULL,0,NULL,0}
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};
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if (argc < 2) exithelp();
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@ -862,14 +865,22 @@ int main(int argc, char **argv)
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exit_clean(1);
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}
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break;
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case 28: /* desync-cutoff */
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case 28: /* dpi-desync-fake-unknown */
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params.fake_unknown_size = sizeof(params.fake_unknown);
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if (!load_file_nonempty(optarg,params.fake_unknown,¶ms.fake_unknown_size))
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{
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fprintf(stderr, "could not read %s\n",optarg);
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exit_clean(1);
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}
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break;
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case 29: /* desync-cutoff */
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if (!sscanf(optarg, "%u", ¶ms.desync_cutoff))
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{
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fprintf(stderr, "invalid desync-cutoff value\n");
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exit_clean(1);
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}
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break;
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case 29: /* hostlist */
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case 30: /* hostlist */
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if (!LoadHostList(¶ms.hostlist, optarg))
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exit_clean(1);
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strncpy(params.hostfile,optarg,sizeof(params.hostfile));
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@ -43,8 +43,8 @@ struct params_s
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uint32_t desync_badseq_increment, desync_badseq_ack_increment;
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char hostfile[256];
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strpool *hostlist;
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uint8_t fake_http[1460],fake_tls[1460];
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size_t fake_http_size,fake_tls_size;
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uint8_t fake_http[1432],fake_tls[1432],fake_unknown[1432];
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size_t fake_http_size,fake_tls_size,fake_unknown_size;
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bool droproot;
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uid_t uid;
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gid_t gid;
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