diff options
Diffstat (limited to 'src/tsg_tamper.cpp')
| -rw-r--r-- | src/tsg_tamper.cpp | 55 |
1 files changed, 27 insertions, 28 deletions
diff --git a/src/tsg_tamper.cpp b/src/tsg_tamper.cpp index 80f5ef6..897e6dd 100644 --- a/src/tsg_tamper.cpp +++ b/src/tsg_tamper.cpp @@ -32,7 +32,7 @@ #define IPV6_UDP_PALYLOAD_START_INDEX 48 //ipv6_len(40) + udp_len(8) #define IPV6_IP_PAYLOAD_INDEX 4 //ipv6_payload_index(4) -int tamper_calc(char *str, int endlen) +int swop_payload2byte(char *str, int endlen) { int i = 0; int j = 0; @@ -42,6 +42,7 @@ int tamper_calc(char *str, int endlen) return 0; } + //这样交换是别面校验和不对的问题 for(i=1; i<endlen; i=i+2){ for (j=i+2; j<endlen; j=j+2){ if(str[i] != str[j]){ @@ -61,22 +62,18 @@ int send_tamper_xxx(const struct streaminfo *a_stream, long *tamper_count, const int trans_layload_len = 0; char tamper_buf[MTU_LEN] = {0}; int tamper_index = 0; - int ret = -1; if(a_stream==NULL || raw_pkt==NULL){ return -1; } - if(*tamper_count == -1){ - *tamper_count = 1; - }else{ - *tamper_count = *tamper_count + 1; - } - + *tamper_count = *tamper_count + 1; p_trans_payload = (char *)a_stream->ptcpdetail->pdata; trans_layload_len = a_stream->ptcpdetail->datalen; + if((p_trans_payload==NULL)||(trans_layload_len<=4)){ + FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TAMPER_FAILED_PLOAD_LESS_4], 0, FS_OP_ADD, 1); MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, __FUNCTION__, @@ -86,30 +83,33 @@ int send_tamper_xxx(const struct streaminfo *a_stream, long *tamper_count, const p_trans_payload, trans_layload_len, raw_pkt); + return -1; } memcpy(tamper_buf, p_trans_payload, trans_layload_len); - tamper_index = tamper_calc(tamper_buf, trans_layload_len); - if(tamper_index > 0){ - MESA_handle_runtime_log(g_tsg_para.logger, - RLOG_LV_DEBUG, - __FUNCTION__, - "Addr: %s, try send num %ld ptcpdetail->pdata %p, ptcpdetail->datalen %d rawpkt %p, modify the index(%d) position of the payload:(old: %02x %02x %02x %02x, new: %02x %02x %02x %02x)", - PRINTADDR(a_stream, g_tsg_para.level), - *tamper_count, - p_trans_payload, - trans_layload_len, - raw_pkt, - tamper_index, - (uint8_t)p_trans_payload[tamper_index-1], (uint8_t)p_trans_payload[tamper_index], (uint8_t)p_trans_payload[tamper_index+1], (uint8_t)p_trans_payload[tamper_index+2], - (uint8_t)tamper_buf[tamper_index-1], (uint8_t)tamper_buf[tamper_index], (uint8_t)tamper_buf[tamper_index+1], (uint8_t)tamper_buf[tamper_index+2]); - + tamper_index = swop_payload2byte(tamper_buf, trans_layload_len); + if(tamper_index > 0 ){ if(0 == tsg_send_inject_packet(a_stream, SIO_DEFAULT, tamper_buf, trans_layload_len, a_stream->routedir)){ - ret = 0; + FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_SUCESS_TAMPER], 0, FS_OP_ADD, 1); + MESA_handle_runtime_log(g_tsg_para.logger, + RLOG_LV_DEBUG, + __FUNCTION__, + "Addr: %s, try send num %ld ptcpdetail->pdata %p, ptcpdetail->datalen %d rawpkt %p, modify the index(%d) position of the payload:(old: %02x %02x %02x %02x, new: %02x %02x %02x %02x)", + PRINTADDR(a_stream, g_tsg_para.level), + *tamper_count, + p_trans_payload, + trans_layload_len, + raw_pkt, + tamper_index, + (uint8_t)p_trans_payload[tamper_index-1], (uint8_t)p_trans_payload[tamper_index], (uint8_t)p_trans_payload[tamper_index+1], (uint8_t)p_trans_payload[tamper_index+2], + (uint8_t)tamper_buf[tamper_index-1], (uint8_t)tamper_buf[tamper_index], (uint8_t)tamper_buf[tamper_index+1], (uint8_t)tamper_buf[tamper_index+2]); + return 0; } - }else{ - MESA_handle_runtime_log(g_tsg_para.logger, + } + + FS_operate(g_tsg_para.fs2_handle, g_tsg_para.fs2_field_id[TSG_FS2_TAMPER_FAILED_NOSWOP], 0, FS_OP_ADD, 1); + MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, __FUNCTION__, "Addr: %s, try send num %ld ptcpdetail->pdata %p, ptcpdetail->datalen %d rawpkt %p, payload tamper failed because payload data same", @@ -118,7 +118,6 @@ int send_tamper_xxx(const struct streaminfo *a_stream, long *tamper_count, const p_trans_payload, trans_layload_len, raw_pkt); - } - return ret; + return -1; } |