X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/02f215c550418f180d0d1b2694c99a7a8d4dc4b2..517400b7934a39872ffa02370ac7aa1264bec114:/projects/stargazer/plugins/capture/cap_nf/cap_nf.cpp diff --git a/projects/stargazer/plugins/capture/cap_nf/cap_nf.cpp b/projects/stargazer/plugins/capture/cap_nf/cap_nf.cpp index a572e8a1..37af9720 100644 --- a/projects/stargazer/plugins/capture/cap_nf/cap_nf.cpp +++ b/projects/stargazer/plugins/capture/cap_nf/cap_nf.cpp @@ -54,8 +54,9 @@ return cnc.GetPlugin(); NF_CAP::NF_CAP() : traffCnt(NULL), - tidTCP(0), - tidUDP(0), + settings(), + tidTCP(), + tidUDP(), runningTCP(false), runningUDP(false), stoppedTCP(true), @@ -63,7 +64,9 @@ NF_CAP::NF_CAP() portT(0), portU(0), sockTCP(-1), - sockUDP(-1) + sockUDP(-1), + errorStr(), + logger(GetPluginLogger(GetStgLogger(), "cap_nf")) { } @@ -115,6 +118,7 @@ if (portU > 0) runningUDP = false; CloseUDP(); errorStr = "Cannot create UDP thread"; + logger("Cannot create UDP thread."); printfd(__FILE__, "Error: Cannot create UDP thread\n"); return -1; } @@ -130,6 +134,7 @@ if (portT > 0) { runningTCP = false; CloseTCP(); + logger("Cannot create TCP thread."); errorStr = "Cannot create TCP thread"; printfd(__FILE__, "Error: Cannot create TCP thread\n"); return -1; @@ -146,7 +151,8 @@ if (portU && !stoppedUDP) CloseUDP(); for (int i = 0; i < 25 && !stoppedUDP; ++i) { - usleep(200000); + struct timespec ts = {0, 200000000}; + nanosleep(&ts, NULL); } if (stoppedUDP) { @@ -157,10 +163,12 @@ if (portU && !stoppedUDP) if (pthread_kill(tidUDP, SIGUSR1)) { errorStr = "Error sending signal to UDP thread"; + logger("Error sending sugnal to UDP thread."); printfd(__FILE__, "Error: Error sending signal to UDP thread\n"); return -1; } printfd(__FILE__, "UDP thread NOT stopped\n"); + logger("Cannot stop UDP thread."); } } if (portT && !stoppedTCP) @@ -168,7 +176,8 @@ if (portT && !stoppedTCP) CloseTCP(); for (int i = 0; i < 25 && !stoppedTCP; ++i) { - usleep(200000); + struct timespec ts = {0, 200000000}; + nanosleep(&ts, NULL); } if (stoppedTCP) { @@ -179,10 +188,12 @@ if (portT && !stoppedTCP) if (pthread_kill(tidTCP, SIGUSR1)) { errorStr = "Error sending signal to TCP thread"; + logger("Error sending signal to TCP thread."); printfd(__FILE__, "Error: Error sending signal to TCP thread\n"); return -1; } printfd(__FILE__, "TCP thread NOT stopped\n"); + logger("Cannot stop TCP thread."); } } return 0; @@ -195,6 +206,7 @@ sockUDP = socket(PF_INET, SOCK_DGRAM, 0); if (sockUDP <= 0) { errorStr = "Error opening UDP socket"; + logger("Cannot create UDP socket: %s", strerror(errno)); printfd(__FILE__, "Error: Error opening UDP socket\n"); return true; } @@ -204,6 +216,7 @@ sin.sin_addr.s_addr = inet_addr("0.0.0.0"); if (bind(sockUDP, (struct sockaddr *)&sin, sizeof(sin))) { errorStr = "Error binding UDP socket"; + logger("Cannot bind UDP socket: %s", strerror(errno)); printfd(__FILE__, "Error: Error binding UDP socket\n"); return true; } @@ -217,6 +230,7 @@ sockTCP = socket(PF_INET, SOCK_STREAM, 0); if (sockTCP <= 0) { errorStr = "Error opening TCP socket"; + logger("Cannot create TCP socket: %s", strerror(errno)); printfd(__FILE__, "Error: Error opening TCP socket\n"); return true; } @@ -226,12 +240,14 @@ sin.sin_addr.s_addr = inet_addr("0.0.0.0"); if (bind(sockTCP, (struct sockaddr *)&sin, sizeof(sin))) { errorStr = "Error binding TCP socket"; + logger("Cannot bind TCP socket: %s", strerror(errno)); printfd(__FILE__, "Error: Error binding TCP socket\n"); return true; } if (listen(sockTCP, 1)) { errorStr = "Error listening on TCP socket"; + logger("Cannot listen on TCP socket: %s", strerror(errno)); printfd(__FILE__, "Error: Error listening TCP socket\n"); return true; } @@ -240,6 +256,10 @@ return false; void * NF_CAP::RunUDP(void * c) { +sigset_t signalSet; +sigfillset(&signalSet); +pthread_sigmask(SIG_BLOCK, &signalSet, NULL); + NF_CAP * cap = static_cast(c); uint8_t buf[BUF_SIZE]; int res; @@ -259,6 +279,12 @@ while (cap->runningUDP) if (!cap->runningUDP) break; + if (res < 0) + { + cap->logger("recvfrom error: %s", strerror(errno)); + continue; + } + if (res == 0) // EOF { continue; @@ -282,6 +308,10 @@ return NULL; void * NF_CAP::RunTCP(void * c) { +sigset_t signalSet; +sigfillset(&signalSet); +pthread_sigmask(SIG_BLOCK, &signalSet, NULL); + NF_CAP * cap = static_cast(c); uint8_t buf[BUF_SIZE]; int res; @@ -304,11 +334,8 @@ while (cap->runningTCP) if (sd <= 0) { - if (errno != EINTR) - { - cap->errorStr = "Error accepting connection"; - printfd(__FILE__, "Error: Error accepting connection\n"); - } + if (sd < 0) + cap->logger("accept error: %s", strerror(errno)); continue; } @@ -319,6 +346,10 @@ while (cap->runningTCP) } res = recv(sd, buf, BUF_SIZE, MSG_WAITALL); + + if (res < 0) + cap->logger("recv error: %s", strerror(errno)); + close(sd); if (!cap->runningTCP) @@ -333,11 +364,6 @@ while (cap->runningTCP) // Need to check actual data length and wait all data to receive if (res < 24) { - if (errno != EINTR) - { - cap->errorStr = "Invalid data received"; - printfd(__FILE__, "Error: Invalid data received through TCP\n"); - } continue; } @@ -373,14 +399,14 @@ for (int i = 0; i < packets; ++i) { NF_DATA * data = reinterpret_cast(buf + 24 + i * 48); - ip.header.ipHeader.ip_v = 4; - ip.header.ipHeader.ip_hl = 5; - ip.header.ipHeader.ip_p = data->proto; + ip.rawPacket.header.ipHeader.ip_v = 4; + ip.rawPacket.header.ipHeader.ip_hl = 5; + ip.rawPacket.header.ipHeader.ip_p = data->proto; ip.dataLen = ntohl(data->octets); - ip.header.ipHeader.ip_src.s_addr = data->srcAddr; - ip.header.ipHeader.ip_dst.s_addr = data->dstAddr; - ip.header.sPort = data->srcPort; - ip.header.dPort = data->dstPort; + ip.rawPacket.header.ipHeader.ip_src.s_addr = data->srcAddr; + ip.rawPacket.header.ipHeader.ip_dst.s_addr = data->dstAddr; + ip.rawPacket.header.sPort = data->srcPort; + ip.rawPacket.header.dPort = data->dstPort; traffCnt->Process(ip); }