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-rw-r--r--src/tsg_proxy.cpp561
1 files changed, 561 insertions, 0 deletions
diff --git a/src/tsg_proxy.cpp b/src/tsg_proxy.cpp
new file mode 100644
index 0000000..8e007fa
--- /dev/null
+++ b/src/tsg_proxy.cpp
@@ -0,0 +1,561 @@
+#include <MESA/stream.h>
+#include <MESA/MESA_handle_logger.h>
+
+#include "tsg_rule.h"
+#include "tsg_variable.h"
+#include "tsg_send_log.h"
+#include "tsg_sync_state.h"
+#include "tsg_proxy.h"
+
+#define DEFAULT_WINSCLE 0
+#define DEFAULT_MSS 1460
+
+enum tsg_proxy_ipv4hdr_parse_error{
+ TSG_PROXY_IPV4HDR_NULL_PACKET = -1,
+};
+
+enum tsg_proxy_ipv6hdr_parse_error{
+ TSG_PROXY_IPV6HDR_NULL_PACKET = -1,
+ TSG_PROXY_IPV6HDR_NO_TCPHDR = -2,
+ TSG_PROXY_IPV6HDR_INVALID_TYPE = -3,
+};
+
+int tsg_proxy_ipv6_header_parse(const void *a_packet, struct pkt_info *pktinfo){
+ if(a_packet == NULL){
+ return TSG_PROXY_IPV6HDR_NULL_PACKET;
+ }
+ pktinfo->addr_type = ADDR_TYPE_IPV6;
+ pktinfo->iphdr.v6 = (struct ip6_hdr*)a_packet;
+ pktinfo->ip_totlen = ntohs(pktinfo->iphdr.v6->ip6_ctlun.ip6_un1.ip6_un1_plen) + sizeof(struct ip6_hdr);
+ uint8_t next_hdr_type = pktinfo->iphdr.v6->ip6_ctlun.ip6_un1.ip6_un1_nxt;
+ char *next_hdr_ptr = (char*)pktinfo->iphdr.v6 + sizeof(struct ip6_hdr);
+ int skip_len = 0;
+ int ret = 0;
+ while(true){
+ switch(next_hdr_type)
+ {
+ case IPPROTO_TCP:
+ //parse tcphdr
+ pktinfo->iphdr_len = next_hdr_ptr - (char*)a_packet;
+ pktinfo->tcphdr = (struct tcphdr*)next_hdr_ptr;
+ pktinfo->tcphdr_len = pktinfo->tcphdr->doff * 4;
+ pktinfo->data = (char*)pktinfo->tcphdr + pktinfo->tcphdr_len;
+ pktinfo->data_len = pktinfo->ip_totlen - pktinfo->iphdr_len - pktinfo->tcphdr_len;
+ return 0;
+ case IPPROTO_HOPOPTS:
+ case IPPROTO_ROUTING:
+ case IPPROTO_AH:
+ case IPPROTO_DSTOPTS:
+ skip_len = (*(next_hdr_ptr + 1)) * 8 + 8;
+ next_hdr_type = *next_hdr_ptr;
+ next_hdr_ptr += skip_len;
+ break;
+ case IPPROTO_NONE:
+ ret = TSG_PROXY_IPV6HDR_NO_TCPHDR;
+ goto error_out;
+ default:
+ ret = TSG_PROXY_IPV6HDR_INVALID_TYPE;
+ goto error_out;
+ }
+ }
+
+error_out:
+ return ret;
+}
+
+int tsg_proxy_ipv4_header_parse(const void *a_packet, struct pkt_info *pktinfo){
+ if(a_packet == NULL){
+ return TSG_PROXY_IPV4HDR_NULL_PACKET;
+ }
+ pktinfo->addr_type = ADDR_TYPE_IPV4;
+ pktinfo->iphdr.v4 = (struct iphdr*)a_packet;
+ pktinfo->iphdr_len = pktinfo->iphdr.v4->ihl * 4;
+ pktinfo->ip_totlen = ntohs(pktinfo->iphdr.v4->tot_len);
+ pktinfo->tcphdr = (struct tcphdr*)((char*)pktinfo->iphdr.v4 + pktinfo->iphdr_len);
+ pktinfo->tcphdr_len = pktinfo->tcphdr->doff * 4;
+ pktinfo->data = (char*)pktinfo->tcphdr + pktinfo->tcphdr_len;
+ pktinfo->data_len = pktinfo->ip_totlen - pktinfo->iphdr_len - pktinfo->tcphdr_len;
+ return 0;
+}
+
+static char* tsg_proxy_ipv4_errmsg_get(enum tsg_proxy_ipv4hdr_parse_error _errno){
+ switch(_errno){
+ case TSG_PROXY_IPV4HDR_NULL_PACKET:
+ return (char*)"null packet";
+ default:
+ return (char*)"unknown error";
+ }
+}
+
+static char* tsg_proxy_ipv6_errmsg_get(enum tsg_proxy_ipv6hdr_parse_error _errno){
+ switch(_errno){
+ case TSG_PROXY_IPV6HDR_NULL_PACKET:
+ return (char*)"null packet";
+ case TSG_PROXY_IPV6HDR_NO_TCPHDR:
+ return (char*)"no tcp header";
+ case TSG_PROXY_IPV6HDR_INVALID_TYPE:
+ return (char*)"invalid header type";
+ default:
+ return (char*)"unknown error";
+ }
+}
+
+static void tsg_proxy_ip_header_parse(const void *a_packet, enum addr_type_t addr_type, const struct streaminfo *stream, struct pkt_info *pktinfo){
+ if(addr_type == ADDR_TYPE_IPV6){
+ int ret = tsg_proxy_ipv6_header_parse(a_packet, pktinfo);
+ if(ret < 0){
+ char *errmsg = tsg_proxy_ipv6_errmsg_get((enum tsg_proxy_ipv6hdr_parse_error)ret);
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_FATAL, "PROXY", "Failed at parse ipv6 header, errmsg = %s, stream treaceid = %llu", errmsg, tsg_get_stream_trace_id(stream));
+ pktinfo->parse_failed = 1;
+ }
+ }
+ else{
+ int ret = tsg_proxy_ipv4_header_parse(a_packet, pktinfo);
+ if(ret < 0){
+ char *errmsg = tsg_proxy_ipv4_errmsg_get((enum tsg_proxy_ipv4hdr_parse_error)ret);
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_FATAL, "PROXY", "Failed at parse ipv4 header, errmsg = %s, stream treaceid = %llu", errmsg, tsg_get_stream_trace_id(stream));
+ pktinfo->parse_failed = 1;
+ }
+ }
+ return;
+}
+
+static void tsg_proxy_tcpopt_get(struct tsg_proxy_tcp_option *tcp_opt, struct tcphdr* tcphdr,int tcphdr_len)
+{
+ tcp_opt->mss = DEFAULT_MSS;
+ tcp_opt->wscale = DEFAULT_WINSCLE;
+ tcp_opt->window = ntohs(tcphdr->window);
+
+ const unsigned char *ptr = ((const unsigned char*)tcphdr + 20);
+ int length = tcphdr_len - 20;
+
+ while (length > 0){
+ int opcode = *ptr++;
+ int opsize;
+ switch (opcode){
+ case TCPOPT_EOL:
+ return;
+ case TCPOPT_NOP: /* Ref: RFC 793 section 3.1 */
+ length--;
+ continue;
+ default:
+ opsize = *ptr++;
+ if (opsize < 2) /* "silly options" */
+ return;
+ if (opsize > length)
+ return; /* don't parse partial options */
+ switch (opcode){
+ case TCPOPT_MAXSEG:
+ if (opsize == TCPOLEN_MAXSEG){
+ uint16_t in_mss = *(uint16_t *)ptr;
+ if(in_mss){
+ tcp_opt->mss = ntohs(in_mss);
+ }
+ }
+ break;
+
+ case TCPOPT_WINDOW:
+ if (opsize == TCPOLEN_WINDOW){
+ uint8_t snd_wscale = *(uint8_t *)ptr;
+ // rfc7323 page9: Thus, the shift count MUST be limited to 14 (which allows windows of 2^30 = 1 GiB).
+ // If a Window Scale option is received with a shift.cnt value larger than 14,
+ // the TCP SHOULD log the error but MUST use 14 instead of the specified value. */
+ tcp_opt->wscale = snd_wscale;
+ if(tcp_opt->wscale > 14){
+ tcp_opt->wscale = 14;
+ }
+ tcp_opt->wscale_set = 1;
+ //*wscale_perm=1;
+ }
+ break;
+ case TCPOPT_TIMESTAMP:
+ if (opsize == TCPOLEN_TIMESTAMP){
+ tcp_opt->ts_set = 1;
+ tcp_opt->ts_val = *(uint32_t*)ptr;
+ tcp_opt->ts_ecr = *(uint32_t*)(ptr + 4);
+ }
+ break;
+ case TCPOPT_SACK_PERMITTED:
+ if (opsize == TCPOLEN_SACK_PERMITTED){
+ tcp_opt->sack = 1;
+ }
+ break;
+ }
+ ptr += opsize-2;
+ length -= opsize;
+ }
+ }
+ return;
+}
+
+static int tsg_proxy_rawpkt_info_get(const void *raw_pkt, struct tsg_proxy_tcp_option *tcp_opt, const struct streaminfo *stream)
+{
+ int ret;
+ struct segment_id_list *sids = NULL;
+
+ ret = get_rawpkt_opt_from_streaminfo(stream, RWA_PKT_GET_SID_LIST, &sids);
+ if (ret != sizeof(struct segment_id_list)) {
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_FATAL, "PROXY", "Failed to get sid list, stream treaceid = %llu, %s", tsg_get_stream_trace_id(stream), printaddr(&stream->addr, stream->threadnum));
+ return -1;
+ }
+ memcpy(&tcp_opt->sid_list, sids, sizeof(struct segment_id_list));
+
+ void *route_ctx = NULL;
+ ret = get_rawpkt_opt_from_streaminfo(stream, RAW_PKT_GET_ROUTE_CTX, &route_ctx);
+ if (ret < 0) {
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_FATAL, "PROXY", "Failed to get route ctx, stream treaceid = %llu, %s", tsg_get_stream_trace_id(stream), printaddr(&stream->addr, stream->threadnum));
+ return -1;
+ }
+ tcp_opt->route_ctx_len = ret;
+ memcpy(tcp_opt->route_ctx, route_ctx, ret);
+
+ return 0;
+}
+
+void tsg_proxy_tcp_parse(struct tsg_proxy_tcp_attribute *tcp_attr, struct pkt_info *pktinfo, const struct streaminfo *stream)
+{
+ const void *raw_pkt = get_rawpkt_from_streaminfo(stream);
+
+ if (!raw_pkt) {
+ return;
+ }
+
+ if (pktinfo->tcphdr->syn && !pktinfo->tcphdr->ack) {
+ tsg_proxy_rawpkt_info_get(raw_pkt, &tcp_attr->tcp_opt_client, stream);
+ tsg_proxy_tcpopt_get(&tcp_attr->tcp_opt_client, pktinfo->tcphdr, pktinfo->tcphdr_len);
+ }
+
+ if (pktinfo->tcphdr->syn && pktinfo->tcphdr->ack) {
+ tsg_proxy_rawpkt_info_get(raw_pkt, &tcp_attr->tcp_opt_server, stream);
+ tsg_proxy_tcpopt_get(&tcp_attr->tcp_opt_server, pktinfo->tcphdr, pktinfo->tcphdr_len);
+ }
+}
+
+static struct tsg_proxy_tcp_attribute *tsg_proxy_tcp_attribute_get(const struct streaminfo *stream)
+{
+ struct session_runtime_attribute *srt_attribute = (struct session_runtime_attribute *)session_runtime_attribute_get(stream);
+ if (srt_attribute == NULL) {
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_FATAL, "PROXY", "Failed to get session runtime attribute, stream treaceid = %llu", tsg_get_stream_trace_id(stream));
+ return NULL;
+ }
+
+ if (srt_attribute->proxy_tcp_attr == NULL) {
+ srt_attribute->proxy_tcp_attr = (struct tsg_proxy_tcp_attribute *)dictator_malloc(stream->threadnum, sizeof(struct tsg_proxy_tcp_attribute));
+ memset(srt_attribute->proxy_tcp_attr, 0, sizeof(struct tsg_proxy_tcp_attribute));
+ }
+
+ return srt_attribute->proxy_tcp_attr;
+}
+
+void tsg_proxy_first_data_process(const struct streaminfo *stream, struct tsg_proxy_tcp_attribute *tcp_attr, struct pkt_info *pktinfo)
+{
+ struct tsg_proxy_tcp_option tcp_opt;
+ enum TSG_PROTOCOL tcp_protocol;
+ const struct session_runtime_process_context *session_context = session_runtime_process_context_get(stream);
+
+ memset(&tcp_opt, 0, sizeof(struct tsg_proxy_tcp_option));
+ tcp_protocol = srt_process_context_get_protocol(session_context);
+ switch(tcp_protocol)
+ {
+ case PROTO_SSL:
+ tcp_attr->tcp_protocol = 0x1;
+ break;
+
+ case PROTO_SSH:
+ tcp_attr->tcp_protocol = 0x2;
+ break;
+
+ default:
+ tcp_attr->tcp_protocol = 0x0;
+
+ }
+
+ if(tcp_attr->tcp_opt_client.ts_set && tcp_attr->tcp_opt_server.ts_set) {
+ tsg_proxy_tcpopt_get(&tcp_opt, pktinfo->tcphdr, pktinfo->tcphdr_len);
+ if(stream->curdir == DIR_C2S){
+ tcp_attr->tcp_opt_client.ts_val = tcp_opt.ts_val;
+ tcp_attr->tcp_opt_server.ts_val = tcp_opt.ts_ecr;
+ } else {
+ tcp_attr->tcp_opt_client.ts_val = tcp_opt.ts_ecr;
+ tcp_attr->tcp_opt_server.ts_val = tcp_opt.ts_val;
+ }
+ }
+
+ tcp_attr->tcp_info_packet_cur_dir = stream->curdir;
+ if (stream->curdir == DIR_C2S) {
+ tcp_attr->tcp_seq = pktinfo->tcphdr->seq;
+ tcp_attr->tcp_ack = pktinfo->tcphdr->ack_seq;
+ } else {
+ tcp_attr->tcp_seq = pktinfo->tcphdr->ack_seq;
+ tcp_attr->tcp_ack = pktinfo->tcphdr->seq;
+ }
+ return;
+}
+
+void tsg_proxy_tcp_options_parse(const struct streaminfo *stream, const void *a_packet)
+{
+ struct pkt_info pktinfo;
+ struct tsg_proxy_tcp_attribute *tcp_attr = tsg_proxy_tcp_attribute_get(stream);
+
+
+ if (tcp_attr == NULL) {
+ return;
+ }
+
+ if (tcp_attr->ignore) {
+ return;
+ }
+
+ memset(&pktinfo, 0, sizeof(struct pkt_info));
+ tsg_proxy_ip_header_parse(a_packet, (enum addr_type_t)stream->addr.addrtype, stream, &pktinfo);
+ if (pktinfo.parse_failed) {
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_FATAL, "PROXY", "invalid ip header, bypass pkt");
+ return;
+ }
+
+ if(stream->ptcpdetail->datalen > 0) {
+ if (tcp_attr->first_data_pkt_processed) {
+ struct maat_rule maat_rule;
+ int rule_num;
+ rule_num = session_matched_rules_copy(stream, TSG_SERVICE_INTERCEPT, &maat_rule, 1);
+ if (rule_num == 0) {
+ tcp_attr->ignore = 1;
+ }
+ } else {
+ tsg_proxy_first_data_process(stream, tcp_attr, &pktinfo);
+ tcp_attr->first_data_pkt_processed = 1;
+ }
+
+ return;
+ }
+
+ tsg_proxy_tcp_parse(tcp_attr, &pktinfo, stream);
+
+ return;
+}
+
+static void tsg_proxy_cmsg_subscriber_fill(struct session_runtime_attribute *session_attr, struct proxy_cmsg *cmsg)
+{
+ const char *client_subscribe_id = srt_attribute_get_client_subscriber_id(session_attr);
+ const char *server_subscribe_id = srt_attribute_get_server_subscriber_id(session_attr);
+ if (client_subscribe_id) {
+ cmsg->src_sub_id = (char *)client_subscribe_id;
+ }
+ if (server_subscribe_id) {
+ cmsg->dst_sub_id = (char *)server_subscribe_id;
+ }
+
+ return;
+}
+
+static void tsg_proxy_cmsg_asn_fill(struct session_runtime_attribute *session_attr, struct proxy_cmsg *cmsg)
+{
+ const struct asn_info *client_asn = srt_attribute_get_client_ip_asn(session_attr);
+ const struct asn_info *server_asn = srt_attribute_get_server_ip_asn(session_attr);
+ if (client_asn) {
+ if (client_asn->asn_id) {
+ cmsg->src_asn = client_asn->asn_id;
+ }
+ if (client_asn->organization) {
+ cmsg->src_organization = client_asn->organization;
+ }
+ }
+ if (server_asn) {
+ if (server_asn->asn_id) {
+ cmsg->dst_asn = server_asn->asn_id;
+ }
+ if (server_asn->organization) {
+ cmsg->dst_organization = server_asn->organization;
+ }
+ }
+
+ return;
+}
+
+static void tsg_proxy_cmsg_ip_location_fill(struct session_runtime_attribute *session_attr, struct proxy_cmsg *cmsg)
+{
+ const struct location_info *client_location = srt_attribute_get_client_ip_location(session_attr);
+ const struct location_info *server_location = srt_attribute_get_server_ip_location(session_attr);
+ if (client_location) {
+ if (client_location->country_full) {
+ cmsg->src_ip_location_country = client_location->country_full;
+ }
+ if (client_location->province_full) {
+ cmsg->src_ip_location_provine = client_location->province_full;
+ }
+ if (client_location->city_full) {
+ cmsg->src_ip_location_city = client_location->city_full;
+ }
+ if (client_location->subdivision_addr) {
+ cmsg->src_ip_location_subdivision = client_location->subdivision_addr;
+ }
+ }
+ if (server_location) {
+ if (server_location->country_full) {
+ cmsg->dst_ip_location_country = server_location->country_full;
+ }
+ if (server_location->province_full) {
+ cmsg->dst_ip_location_provine = server_location->province_full;
+ }
+ if (server_location->city_full) {
+ cmsg->dst_ip_location_city = server_location->city_full;
+ }
+ if (server_location->subdivision_addr) {
+ cmsg->dst_ip_location_subdivision = server_location->subdivision_addr;
+ }
+ }
+ return;
+}
+
+static void tsg_proxy_cmsg_ja3_fingerprint_fill(struct session_runtime_attribute *session_attr, struct proxy_cmsg *cmsg)
+{
+ const char *ja3_fingerprint = srt_attribute_get_ja3_fingerprint(session_attr);
+ if (ja3_fingerprint) {
+ cmsg->ssl_client_ja3_fingerprint = (char *)ja3_fingerprint;
+ }
+ return;
+}
+
+static void tsg_proxy_cmsg_fqdn_category_fill(struct session_runtime_attribute *session_attr, struct proxy_cmsg *cmsg)
+{
+ size_t n_category_ids = 0;
+ uint32_t category_ids[8] = {0};
+ struct cmsg_int32_array *fqdn_cat_ids = &cmsg->fqdn_cat_id_val;
+
+ n_category_ids = srt_attribute_get_category_ids(session_attr, category_ids, sizeof(category_ids)/sizeof(category_ids[0]));
+ if (n_category_ids > 0 && n_category_ids <= 8) {
+ fqdn_cat_ids->num = n_category_ids;
+ for (unsigned int i = 0; i < n_category_ids; i++) {
+ fqdn_cat_ids->value[i] = category_ids[i];
+ }
+ }
+ return;
+}
+
+static void tsg_proxy_tcp_attribute_dump(tsg_proxy_tcp_attribute *tcp_attr, struct proxy_cmsg *cmsg, const struct streaminfo *stream)
+{
+ struct tsg_proxy_tcp_option *client = &tcp_attr->tcp_opt_client;
+ struct tsg_proxy_tcp_option *server = &tcp_attr->tcp_opt_server;
+ char client_sids_str[128] = {0};
+ char server_sids_str[128] = {0};
+ char temp[10] = {0};
+
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "PROXY", "dump tcp attribute for stream %s, session_id %llu",
+ printaddr(&stream->addr, stream->threadnum), tsg_get_stream_trace_id(stream));
+
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "PROXY", "tcp_seq %u, tcp_ack %u, tcp_protocol %u, tcp_info_packet_cur_dir %u\n"\
+ "client mss %u, client wscale_set %u, client wscale %u, client sack %u, client ts_set %u, client ts_val %u, client window %u"\
+ "server mss %u, server wscale_set %u, server wscale %u, server sack %u, server ts_set %u, server ts_val %u, server window %u",
+ tcp_attr->tcp_seq, tcp_attr->tcp_ack, tcp_attr->tcp_protocol, tcp_attr->tcp_info_packet_cur_dir,
+ client->mss, client->wscale_set, client->wscale, client->sack, client->ts_set, client->ts_val, client->window,
+ server->mss, server->wscale_set, server->wscale, server->sack, server->ts_set, server->ts_val, server->window);
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "PROXY", "tcp_seq_route_ctx len %u, tcp_ack_route_ctx len %u\n", client->route_ctx_len, server->route_ctx_len);
+
+ for (unsigned int i = 0; i < client->sid_list.sz_sidlist; i++) {
+ snprintf(temp, sizeof(temp), "%u", client->sid_list.sid_list[i]);
+ strcat(client_sids_str, temp);
+ strcat(client_sids_str, ",");
+ }
+ for (unsigned int i = 0; i < server->sid_list.sz_sidlist; i++) {
+ snprintf(temp, sizeof(temp), "%u", server->sid_list.sid_list[i]);
+ strcat(server_sids_str, temp);
+ strcat(server_sids_str, ",");
+ }
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "PROXY", "tcp_seq_sids num %u, tcp_seq_sids value: %s, tcp_ack_sids num %u, tcp_seq_sids value: %s",
+ client->sid_list.sz_sidlist, client_sids_str, server->sid_list.sz_sidlist, server_sids_str);
+
+ MESA_handle_runtime_log(g_tsg_para.logger, RLOG_LV_DEBUG, "proxy", "client subscribe id: %s\n"\
+ "server subscribe id: %s\n"\
+ "client asn: %s\n"\
+ "server asn: %s\n"\
+ "client orgnization: %s\n"\
+ "server orgnization: %s\n"\
+ "client ip country: %s\n"\
+ "server ip country: %s\n"\
+ "client ip province: %s\n"\
+ "server ip province: %s\n"\
+ "client ip city: %s\n"\
+ "server ip city: %s\n"\
+ "client ip subdevision: %s\n"\
+ "server ip subdevision: %s\n"\
+ "ssl ja3 fingerprint:%s\n",
+ cmsg->src_sub_id,
+ cmsg->dst_sub_id,
+ cmsg->src_asn,
+ cmsg->dst_asn,
+ cmsg->src_organization,
+ cmsg->dst_organization,
+ cmsg->src_ip_location_country,
+ cmsg->dst_ip_location_country,
+ cmsg->src_ip_location_provine,
+ cmsg->dst_ip_location_provine,
+ cmsg->src_ip_location_city,
+ cmsg->dst_ip_location_city,
+ cmsg->src_ip_location_subdivision,
+ cmsg->dst_ip_location_subdivision,
+ cmsg->ssl_client_ja3_fingerprint);
+ return;
+}
+
+void tsg_proxy_update_policy_fill(const struct streaminfo *stream, struct update_policy *policy)
+{
+ struct proxy_cmsg *cmsg = &policy->cmsg;
+ struct tsg_proxy_tcp_attribute *tcp_attr = tsg_proxy_tcp_attribute_get(stream);
+ struct session_runtime_attribute *session_attr = (struct session_runtime_attribute *)session_runtime_attribute_get(stream);
+
+ if (session_attr == NULL || tcp_attr == NULL) {
+ return;
+ }
+
+ struct tsg_proxy_tcp_option *client = &tcp_attr->tcp_opt_client;
+ struct tsg_proxy_tcp_option *server = &tcp_attr->tcp_opt_server;
+
+ cmsg->tcp_seq = tcp_attr->tcp_seq;
+ cmsg->tcp_ack = tcp_attr->tcp_ack;
+ cmsg->tcp_protocol = tcp_attr->tcp_protocol;
+ cmsg->tcp_info_packet_cur_dir = tcp_attr->tcp_info_packet_cur_dir;
+
+ cmsg->tcp_mss_client = client->mss;
+ cmsg->tcp_sack_client = client->sack;
+ cmsg->tcp_ts_client = client->ts_set;
+ cmsg->tcp_window_client = client->window;
+ cmsg->tcp_ts_client_val = client->ts_val;
+
+ cmsg->tcp_seq_route_ctx.num = client->route_ctx_len;
+ memcpy(cmsg->tcp_seq_route_ctx.value, client->route_ctx, client->route_ctx_len);
+
+ cmsg->tcp_seq_sids.num = client->sid_list.sz_sidlist;
+ for (unsigned int i = 0; i < client->sid_list.sz_sidlist; i++) {
+ cmsg->tcp_seq_sids.value[i] = client->sid_list.sid_list[i];
+ }
+
+ cmsg->tcp_mss_server = server->mss;
+ cmsg->tcp_sack_server = server->sack;
+ cmsg->tcp_ts_server = server->ts_set;
+ cmsg->tcp_window_server = server->window;
+ cmsg->tcp_ts_server_val = server->ts_val;
+
+ cmsg->tcp_ack_route_ctx.num = server->route_ctx_len;
+ memcpy(cmsg->tcp_ack_route_ctx.value, server->route_ctx, server->route_ctx_len);
+
+ cmsg->tcp_ack_sids.num = server->sid_list.sz_sidlist;
+ for (unsigned int i = 0; i < server->sid_list.sz_sidlist; i++) {
+ cmsg->tcp_ack_sids.value[i] = server->sid_list.sid_list[i];
+ }
+
+ if (client->wscale_set && server->wscale_set) {
+ cmsg->tcp_wsacle_exist = 1;
+ cmsg->tcp_wsacle_client = client->wscale;
+ cmsg->tcp_wsacle_server = server->wscale;
+ }
+
+ tsg_proxy_cmsg_subscriber_fill(session_attr, cmsg);
+ tsg_proxy_cmsg_asn_fill(session_attr, cmsg);
+ tsg_proxy_cmsg_ip_location_fill(session_attr, cmsg);
+ tsg_proxy_cmsg_ja3_fingerprint_fill(session_attr, cmsg);
+ tsg_proxy_cmsg_fqdn_category_fill(session_attr, cmsg);
+
+ tsg_proxy_tcp_attribute_dump(tcp_attr, cmsg, stream);
+
+ return;
+} \ No newline at end of file