Module: kamailio Branch: master Commit: 9ff1080cc6452343e6bc2de00350b2f7bcecf6d2 URL: https://github.com/kamailio/kamailio/commit/9ff1080cc6452343e6bc2de00350b2f7...

Author: Daniel-Constantin Mierla miconda@gmail.com Committer: Daniel-Constantin Mierla miconda@gmail.com Date: 2024-08-20T12:26:10+02:00

core: new internal flags to skip adding received/rport in incoming via

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Modified: src/core/msg_translator.c Modified: src/core/parser/msg_parser.h

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Diff: https://github.com/kamailio/kamailio/commit/9ff1080cc6452343e6bc2de00350b2f7... Patch: https://github.com/kamailio/kamailio/commit/9ff1080cc6452343e6bc2de00350b2f7...

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diff --git a/src/core/msg_translator.c b/src/core/msg_translator.c index f26abd2e79d..5028accb1fb 100644 --- a/src/core/msg_translator.c +++ b/src/core/msg_translator.c @@ -212,6 +212,24 @@ static int check_via_address( return -1; }

+/* check if rport has to be added or updated in Via + * - return 1 on true; 0 on false */ +int rport_test(struct sip_msg *msg) +{ + if(msg->msg_flags & FL_VIA_NORECEIVED) { + return 0; + } + /* check if rport needs to be updated: + * - if FL_FORCE_RPORT is set add it (and del. any previous version) + * - if via already contains an rport add it and overwrite the previous + * rport value if present (if you don't want to overwrite the previous + * version remove the comments) */ + if(((msg->msg_flags | global_req_flags) & FL_FORCE_RPORT) + || (msg->via1->rport /*&& msg->via1->rport->value.s==0*/)) { + return 1; + } + return 0; +}

/* check if IP address in Via != source IP address of signaling, * or the sender requires adding rport or received values */ @@ -219,6 +237,9 @@ int received_test(struct sip_msg *msg) { int rcvd;

+ if(msg->msg_flags & FL_VIA_NORECEIVED) { + return 0; + } rcvd = msg->via1->received || msg->via1->rport || check_via_address(&msg->rcv.src_ip, &msg->via1->host, msg->via1->port, received_dns); @@ -230,6 +251,9 @@ int received_via_test(struct sip_msg *msg) { int rcvd;

+ if(msg->msg_flags & FL_VIA_NORECEIVED) { + return 0; + } rcvd = (check_via_address(&msg->rcv.src_ip, &msg->via1->host, msg->via1->port, received_dns) != 0); @@ -2039,7 +2063,7 @@ char *build_req_buf_from_sip_req(struct sip_msg *msg, struct lump *path_anchor; struct lump *path_lump; str branch; - unsigned int flags; + msg_flags_t flags; unsigned int udp_mtu; struct dest_info di; int ret; @@ -2108,13 +2132,8 @@ char *build_req_buf_from_sip_req(struct sip_msg *msg, } }

- /* check if rport needs to be updated: - * - if FL_FORCE_RPORT is set add it (and del. any previous version) - * - if via already contains an rport add it and overwrite the previous - * rport value if present (if you don't want to overwrite the previous - * version remove the comments) */ - if((flags & FL_FORCE_RPORT) - || (msg->via1->rport /*&& msg->via1->rport->value.s==0*/)) { + /* check if rport needs to be updated */ + if(rport_test(msg)) { if((rport_buf = rport_builder(msg, &rport_len)) == 0) { LM_ERR("rport_builder failed\n"); goto error00; /* free everything */ @@ -2518,8 +2537,7 @@ char *build_res_buf_from_sip_req(unsigned int code, str *text, str *new_tag, } } /* check if rport needs to be updated */ - if(((msg->msg_flags | global_req_flags) & FL_FORCE_RPORT) - || (msg->via1->rport /*&& msg->via1->rport->value.s==0*/)) { + if(rport_test(msg)) { if((rport_buf = rport_builder(msg, &rport_len)) == 0) { LM_ERR("rport_builder failed\n"); goto error01; /* free everything */ diff --git a/src/core/parser/msg_parser.h b/src/core/parser/msg_parser.h index 45e7eb1a714..0627754446a 100644 --- a/src/core/parser/msg_parser.h +++ b/src/core/parser/msg_parser.h @@ -133,8 +133,9 @@ typedef enum request_method /* WARNING: Value (1 << 31) is reserved for use in kamailio * nat_traversal module (flag FL_DO_KEEPALIVE)! */

-#define FL_FINAL_REPLY (1ULL << 32) /* local final reply sent */ -#define FL_DELAYED_REPLY (1ULL << 33) /* local reply sending delayed */ +#define FL_FINAL_REPLY (1ULL << 32) /* local final reply sent */ +#define FL_DELAYED_REPLY (1ULL << 33) /* local reply sending delayed */ +#define FL_VIA_NORECEIVED (1ULL << 34) /* no received test for incoming Via */

#define FL_MTU_FB_MASK (FL_MTU_TCP_FB | FL_MTU_TLS_FB | FL_MTU_SCTP_FB)