diff options
Diffstat (limited to 'src/nat_format.cpp')
| -rw-r--r-- | src/nat_format.cpp | 109 |
1 files changed, 71 insertions, 38 deletions
diff --git a/src/nat_format.cpp b/src/nat_format.cpp index 72f99a5..c67716d 100644 --- a/src/nat_format.cpp +++ b/src/nat_format.cpp @@ -21,7 +21,7 @@ #define HW_EVENT_ADD "SESSION_BUILT" #define HW_EVENT_DEL "SESSION_TEARDOWN" -#define HW_EVENT_NEW 0x01 +#define HW_EVENT_NEW 0x00 #define HW_EVENT_AGED 0x02 #define HW_EVENT_PERIOD 0x03 @@ -42,10 +42,13 @@ struct nat_format_global_info g_nat_format_info; -char *multicast_payload; -int cur_pkt = 0; +// 组播报文缓冲区和socket都是每个线程一个 +int platform_thread_num = get_thread_count(); -int udp_socket; +char **multicast_payloads; +int *cur_pkts; + +int *udp_sockets; struct sockaddr_in dst_addr = {0}; // 函数：子串匹配，返回子串结尾+1的位置，即值的起始位置 @@ -138,22 +141,22 @@ int extract_action_hs(char *data, int data_len, const char *key, char *dst) { } // 组播报文发送 -int send_multicast() { +int send_multicast(int thread_seq) { // 发之前统一填充发送时间 time_t now; time(&now); unsigned int now_timestamp = (int)now; for (int i = 0; i < g_nat_format_info.batch_size; i++) { - memcpy(multicast_payload + i*PAYLOAD_LEN+SEND_TIME_OFFSET, &now_timestamp, 4); + memcpy(multicast_payloads[thread_seq] + i*PAYLOAD_LEN+SEND_TIME_OFFSET, &now_timestamp, 4); } // 进行发送 - if (sendto(udp_socket, multicast_payload, PAYLOAD_LEN*g_nat_format_info.batch_size, 0, (struct sockaddr *)&dst_addr, sizeof(dst_addr)) < 0) { + if (sendto(udp_sockets[thread_seq], multicast_payloads[thread_seq], PAYLOAD_LEN*g_nat_format_info.batch_size, 0, (struct sockaddr *)&dst_addr, sizeof(dst_addr)) < 0) { MESA_handle_runtime_log(g_nat_format_info.log, RLOG_LV_INFO, "nat_format", "Send multicast failed: %s", strerror(errno)); - cur_pkt--; + cur_pkts[thread_seq]--; return -1; } - cur_pkt = 0; + cur_pkts[thread_seq] = 0; return 0; } @@ -185,31 +188,54 @@ int nat_format_init(void) { } // 分配并初始化组播报文存储空间，长度为 batch_size*46Bytes - multicast_payload = (char *)malloc(PAYLOAD_LEN * g_nat_format_info.batch_size); - memset(multicast_payload, 0, PAYLOAD_LEN * g_nat_format_info.batch_size); - - // 创建socket用于发包 - udp_socket = socket(AF_INET, SOCK_DGRAM, 0); - if (udp_socket == -1) { - printf("UDP multicast socket creation failed:%d, %s\n", errno, strerror(errno)); + multicast_payloads = (char **)malloc(platform_thread_num * sizeof(char *)); + if (multicast_payloads == NULL) { + printf("Memory of multicast_payloads allocation failure.\n"); return -1; } - // 绑定组播地址 + for (int i = 0; i < platform_thread_num; i++) { + multicast_payloads[i] = (char *)malloc(PAYLOAD_LEN * g_nat_format_info.batch_size); + if (multicast_payloads[i] == NULL) { + for (int j = 0; j < i; j++) { + free(multicast_payloads[j]); + } + free(multicast_payloads); + printf("Memory of multicast_payload for thread %d allocation failure.\n", i); + return -1; + } + memset(multicast_payloads[i], 0, PAYLOAD_LEN * g_nat_format_info.batch_size); + } + cur_pkts = (int *)malloc(platform_thread_num * sizeof(int)); + memset(cur_pkts, 0, platform_thread_num * sizeof(int)); + + // 组播地址 dst_addr.sin_family = AF_INET; dst_addr.sin_addr.s_addr = inet_addr(g_nat_format_info.multicast_ip); dst_addr.sin_port = htons(g_nat_format_info.multicast_port); struct in_addr multicast_addr; inet_pton(AF_INET, g_nat_format_info.multicast_ip, &multicast_addr.s_addr); - setsockopt(udp_socket, IPPROTO_IP, IP_MULTICAST_IF, &multicast_addr, sizeof(multicast_addr)); - // 绑定发包端口 + // 发包端口 struct sockaddr_in src_addr; src_addr.sin_family = AF_INET; src_addr.sin_port = htons(g_nat_format_info.host_port); src_addr.sin_addr.s_addr = inet_addr(g_nat_format_info.host_ip); - if (bind(udp_socket, (struct sockaddr*)&src_addr, sizeof(src_addr)) < 0) { - printf("socket bind failed\n"); - close(udp_socket); - return -1; + + // 创建socket用于发包 + udp_sockets = (int *)malloc(platform_thread_num * sizeof(int)); + for (int i = 0; i < platform_thread_num; i++) { + udp_sockets[i] = socket(AF_INET, SOCK_DGRAM, 0); + if (udp_sockets[i] == -1) { + free(udp_sockets); + printf("UDP multicast socket for thread %d creation failed:%d, %s\n", i, errno, strerror(errno)); + return -1; + } + setsockopt(udp_sockets[i], IPPROTO_IP, IP_MULTICAST_IF, &multicast_addr, sizeof(multicast_addr)); + if (bind(udp_sockets[i], (struct sockaddr*)&src_addr, sizeof(src_addr)) < 0) { + free(udp_sockets); + printf("socket bind for thread %d failed:%d, %s\n", i, errno, strerror(errno)); + close(udp_sockets[i]); + return -1; + } } return 0; @@ -217,7 +243,14 @@ int nat_format_init(void) { // 卸载函数 void nat_format_destroy(void) { - free(multicast_payload); + for (int j = 0; j < platform_thread_num; j++) { + free(multicast_payloads[j]); + } + free(multicast_payloads); + + free(cur_pkts); + + free(udp_sockets); } // 入口函数 @@ -328,12 +361,12 @@ char nat_format_entry(struct streaminfo *a_udp, void **pme, int thread_seq, void } // 将提取出来的信息写进组播载荷 - memcpy(multicast_payload + cur_pkt*PAYLOAD_LEN, &nat_payload, PAYLOAD_LEN); - cur_pkt++; + memcpy(multicast_payloads[thread_seq] + cur_pkts[thread_seq]*PAYLOAD_LEN, &nat_payload, PAYLOAD_LEN); + cur_pkts[thread_seq]++; // 攒够20个进行发送 - if (cur_pkt == g_nat_format_info.batch_size) { - send_multicast(); + if (cur_pkts[thread_seq] == g_nat_format_info.batch_size) { + send_multicast(thread_seq); } } // 华三syslog @@ -409,12 +442,12 @@ char nat_format_entry(struct streaminfo *a_udp, void **pme, int thread_seq, void } // 将提取出来的信息写进组播载荷 - memcpy(multicast_payload + cur_pkt*PAYLOAD_LEN, &nat_payload, PAYLOAD_LEN); - cur_pkt++; + memcpy(multicast_payloads[thread_seq] + cur_pkts[thread_seq]*PAYLOAD_LEN, &nat_payload, PAYLOAD_LEN); + cur_pkts[thread_seq]++; // 攒够20个进行发送 - if (cur_pkt == g_nat_format_info.batch_size) { - send_multicast(); + if (cur_pkts[thread_seq] == g_nat_format_info.batch_size) { + send_multicast(thread_seq); } } // 迪普syslog TODO @@ -447,7 +480,7 @@ char nat_format_entry(struct streaminfo *a_udp, void **pme, int thread_seq, void MESA_handle_runtime_log(g_nat_format_info.log, RLOG_LV_INFO, "nat_format Huawei Binary", "Unknown Version %d", hb_head->Version); return APP_STATE_GIVEME; } - u_int16_t log_num = hb_head->Count; + u_int16_t log_num = ntohs(hb_head->Count); // 提取防火墙日志生成时间 nat_payload.fw_log_timestamp = hb_head->Second; // 分别处理每一个body @@ -486,12 +519,12 @@ char nat_format_entry(struct streaminfo *a_udp, void **pme, int thread_seq, void } // 将提取出来的信息写进组播载荷 - memcpy(multicast_payload + cur_pkt*PAYLOAD_LEN, &nat_payload, PAYLOAD_LEN); - cur_pkt++; + memcpy(multicast_payloads[thread_seq] + cur_pkts[thread_seq]*PAYLOAD_LEN, &nat_payload, PAYLOAD_LEN); + cur_pkts[thread_seq]++; // 攒够20个进行发送 - if (cur_pkt == g_nat_format_info.batch_size) { - send_multicast(); + if (cur_pkts[thread_seq] == g_nat_format_info.batch_size) { + send_multicast(thread_seq); } // 定位下一个body的offset -- 03版本28,08版本的IPV4、NOPAT为44，USER为209，URL、TLV每个不同，由附加长度确定 @@ -500,7 +533,7 @@ char nat_format_entry(struct streaminfo *a_udp, void **pme, int thread_seq, void offset += body_len; } else { char *tmp = (char *)hb_body; - u_int16_t AppendLength = *(u_int16_t *)(tmp + sizeof(struct hw_binary_log_body) + HW_BINARY_BODY_V8_TLV_OFFSET); + u_int16_t AppendLength = ntohs(*(u_int16_t *)(tmp + sizeof(struct hw_binary_log_body) + HW_BINARY_BODY_V8_TLV_OFFSET)); offset += (HW_BINARY_BODY_LENGTH_V8_IPV4 + AppendLength); } } |