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@@ -8,9 +8,9 @@ Juha Heinanen
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<[email protected]>
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- Copyright © 2003 FhG FOKUS
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+ Copyright © 2003 FhG FOKUS
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- Copyright © 2008 Juha Heinanen
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+ Copyright © 2008 Juha Heinanen
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__________________________________________________________________
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1.1. Overview
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@@ -61,52 +61,51 @@ Juha Heinanen
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1.5. Functions
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- 1.5.1. t_relay_to_udp(ip, port), t_relay_to_udp(),
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- t_relay_to_tcp(ip, port) t_relay_to_tcp()
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- t_relay_to_tls(ip, port) t_relay_to_tls()
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- t_relay_to_sctp(ip, port) t_relay_to_sctp()
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-
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- 1.5.2. t_relay() t_relay(host, port)
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- 1.5.3. t_on_failure(failure_route)
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- 1.5.4. t_on_reply(onreply_route)
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- 1.5.5. t_on_branch(branch_route)
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- 1.5.6. append_branch()
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- 1.5.7. t_newtran()
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- 1.5.8. t_reply(code, reason_phrase)
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- 1.5.9. t_lookup_request()
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- 1.5.10. t_retransmit_reply()
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- 1.5.11. t_release()
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- 1.5.12. t_forward_nonack() t_forward_nonack(ip, port)
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- t_forward_nonack_udp(ip, port) t_forward_nonack_tcp(ip,
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- port) t_forward_nonack_tls(ip, port)
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- t_forward_nonack_sctp(ip, port)
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-
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- 1.5.13. t_set_fr(fr_inv_timeout [, fr_timeout])
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- 1.5.14. t_reset_fr()
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- 1.5.15. t_set_max_lifetime(inv_lifetime, noninv_lifetime)
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- 1.5.16. t_reset_max_lifetime()
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- 1.5.17. t_set_retr(retr_t1_interval, retr_t2_interval)
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- 1.5.18. t_reset_retr()
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- 1.5.19. t_set_auto_inv_100(0|1)
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- 1.5.20. t_branch_timeout()
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- 1.5.21. t_branch_replied()
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- 1.5.22. t_any_timeout()
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- 1.5.23. t_any_replied()
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- 1.5.24. t_grep_status("code")
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- 1.5.25. t_is_canceled()
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- 1.5.26. t_is_expired()
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- 1.5.27. t_relay_cancel()
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- 1.5.28. t_lookup_cancel(), t_lookup_cancel(1)
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- 1.5.29. t_drop_replies([mode])
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- 1.5.30. t_save_lumps()
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- 1.5.31. t_load_contacts()
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- 1.5.32. t_next_contacts()
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- 1.5.33. t_check_trans()
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- 1.5.34. t_set_disable_6xx(0|1)
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- 1.5.35. t_set_disable_failover(0|1)
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- 1.5.36. t_replicate(params)
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- 1.5.37. t_relay_to(proxy, flags)
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- 1.5.38. t_set_no_e2e_cancel_reason(0|1)
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+ 1.5.1. t_relay([host, port])
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+ 1.5.2. t_relay_to_udp([ip, port])
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+ 1.5.3. t_relay_to_tcp([ip, port])
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+ 1.5.4. t_relay_to_tls([ip, port])
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+ 1.5.5. t_relay_to_sctp([ip, port])
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+ 1.5.6. t_on_failure(failure_route)
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+ 1.5.7. t_on_reply(onreply_route)
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+ 1.5.8. t_on_branch(branch_route)
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+ 1.5.9. append_branch()
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+ 1.5.10. t_newtran()
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+ 1.5.11. t_reply(code, reason_phrase)
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+ 1.5.12. t_lookup_request()
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+ 1.5.13. t_retransmit_reply()
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+ 1.5.14. t_release()
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+ 1.5.15. t_forward_nonack([ip, port])
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+ 1.5.16. t_forward_nonack_udp(ip, port)
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+ 1.5.17. t_forward_nonack_tcp(ip, port)
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+ 1.5.18. t_forward_nonack_tls(ip, port)
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+ 1.5.19. t_forward_nonack_sctp(ip, port)
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+ 1.5.20. t_set_fr(fr_inv_timeout [, fr_timeout])
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+ 1.5.21. t_reset_fr()
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+ 1.5.22. t_set_max_lifetime(inv_lifetime, noninv_lifetime)
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+ 1.5.23. t_reset_max_lifetime()
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+ 1.5.24. t_set_retr(retr_t1_interval, retr_t2_interval)
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+ 1.5.25. t_reset_retr()
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+ 1.5.26. t_set_auto_inv_100(0|1)
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+ 1.5.27. t_branch_timeout()
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+ 1.5.28. t_branch_replied()
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+ 1.5.29. t_any_timeout()
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+ 1.5.30. t_any_replied()
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+ 1.5.31. t_grep_status("code")
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+ 1.5.32. t_is_canceled()
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+ 1.5.33. t_is_expired()
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+ 1.5.34. t_relay_cancel()
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+ 1.5.35. t_lookup_cancel([1])
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+ 1.5.36. t_drop_replies([mode])
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+ 1.5.37. t_save_lumps()
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+ 1.5.38. t_load_contacts()
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+ 1.5.39. t_next_contacts()
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+ 1.5.40. t_check_trans()
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+ 1.5.41. t_set_disable_6xx(0|1)
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+ 1.5.42. t_set_disable_failover(0|1)
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+ 1.5.43. t_replicate(params)
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+ 1.5.44. t_relay_to(proxy, flags)
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+ 1.5.45. t_set_no_e2e_cancel_reason(0|1)
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1.6. TM Module API
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@@ -176,7 +175,7 @@ Juha Heinanen
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Note
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Several Kamailio (OpenSER) TM module functionalities are now
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- implemented in the TMX module: “modules_k/tmx�. Check it to see if what
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+ implemented in the TMX module: "modules_k/tmx". Check it to see if what
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you are looking for is there.
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1.2. Serial Forking Based on Q Value
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@@ -1191,9 +1190,35 @@ modparam("tm", "e2e_cancel_reason", 0)
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1.5. Functions
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-1.5.1. t_relay_to_udp(ip, port), t_relay_to_udp(), t_relay_to_tcp(ip, port)
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-t_relay_to_tcp() t_relay_to_tls(ip, port) t_relay_to_tls()
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-t_relay_to_sctp(ip, port) t_relay_to_sctp()
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+1.5.1. t_relay([host, port])
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+
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+ Relay a message statefully either to the destination indicated in the
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+ current URI (if called without any parameters) or to the specified host
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+ and port. In the later case (host and port specified) the protocol used
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+ is the same protocol on which the message was received.
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+
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+ t_relay() is the statefull version for forward() while t_relay(host,
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+ port) is similar to forward(host, port).
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+
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+ In the forward to uri case (t_relay()), if the original URI was
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+ rewritten (by UsrLoc, RR, strip/prefix, etc.) the new URI will be
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+ taken). The destination (including the protocol) is determined from the
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+ uri, using SIP specific DNS resolving if needed (NAPTR, SRV a.s.o
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+ depending also on the dns options).
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+
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+ Returns a negative value on failure -- you may still want to send a
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+ negative reply upstream statelessly not to leave upstream UAC in lurch.
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+
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+ Example 41. t_relay usage
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+...
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+if (!t_relay())
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+{
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+ sl_reply_error();
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+ break;
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+};
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+...
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+
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+1.5.2. t_relay_to_udp([ip, port])
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Relay a message statefully using a fixed protocol either to the
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specified fixed destination or to a destination derived from the
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@@ -1211,7 +1236,7 @@ t_relay_to_sctp(ip, port) t_relay_to_sctp()
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derived from the message uri (using sip sepcific DNS lookups), but with
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the protocol corresponding to the function name.
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- Example 41. t_relay_to_udp usage
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+ Example 42. t_relay_to_udp usage
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...
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if (src_ip==10.0.0.0/8)
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t_relay_to_udp("1.2.3.4", "5060"); # sent to 1.2.3.4:5060 over udp
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@@ -1219,35 +1244,19 @@ else
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t_relay_to_tcp(); # relay to msg. uri, but over tcp
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...
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-1.5.2. t_relay() t_relay(host, port)
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+1.5.3. t_relay_to_tcp([ip, port])
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- Relay a message statefully either to the destination indicated in the
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- current URI (if called without any parameters) or to the specified host
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- and port. In the later case (host and port specified) the protocol used
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- is the same protocol on which the message was received.
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+ See function t_relay_to_udp([ip, port]).
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- t_relay() is the statefull version for forward(uri:host, uri:port)
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- while t_relay(host, port) is similar to forward(host, port).
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+1.5.4. t_relay_to_tls([ip, port])
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- In the forward to uri case (t_relay()), if the original URI was
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- rewritten (by UsrLoc, RR, strip/prefix, etc.) the new URI will be
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- taken). The destination (including the protocol) is determined from the
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- uri, using SIP specific DNS resolving if needed (NAPTR, SRV a.s.o
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- depending also on the dns options).
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+ See function t_relay_to_udp([ip, port]).
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- Returns a negative value on failure--you may still want to send a
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- negative reply upstream statelessly not to leave upstream UAC in lurch.
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+1.5.5. t_relay_to_sctp([ip, port])
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- Example 42. t_relay usage
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-...
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-if (!t_relay())
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-{
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- sl_reply_error();
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- break;
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-};
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-...
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+ See function t_relay_to_udp([ip, port]).
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-1.5.3. t_on_failure(failure_route)
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+1.5.6. t_on_failure(failure_route)
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Sets failure routing block, to which control is passed after a
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transaction completed with a negative result but before sending a final
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@@ -1284,7 +1293,7 @@ failure_route[1] {
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See test/onr.cfg for a more complex example of combination of serial
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with parallel forking.
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-1.5.4. t_on_reply(onreply_route)
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+1.5.7. t_on_reply(onreply_route)
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Sets the reply routing block, to which control is passed when a reply
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for the current transaction is received. Note that the set of commands
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@@ -1314,7 +1323,7 @@ es');
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}
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}
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-1.5.5. t_on_branch(branch_route)
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+1.5.8. t_on_branch(branch_route)
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Sets the branch routing block, to which control is passed after forking
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(when a new branch is created). For now branch routes are intended only
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@@ -1338,7 +1347,7 @@ branch_route[1] {
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}
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}
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-1.5.6. append_branch()
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+1.5.9. append_branch()
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Similarly to t_fork_to, it extends destination set by a new entry. The
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difference is that current URI is taken as new entry.
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@@ -1352,7 +1361,7 @@ t_fork();
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t_relay();
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...
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-1.5.7. t_newtran()
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+1.5.10. t_newtran()
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Creates a new transaction, returns a negative value on error. This is
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the only way a script can add a new transaction in an atomic way.
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@@ -1368,7 +1377,7 @@ if (t_newtran()) {
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See test/uas.cfg for more examples.
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-1.5.8. t_reply(code, reason_phrase)
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+1.5.11. t_reply(code, reason_phrase)
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Sends a stateful reply after a transaction has been established. See
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t_newtran for usage.
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@@ -1382,7 +1391,7 @@ if (t_newtran()) {
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t_reply("404", "Not found");
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...
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-1.5.9. t_lookup_request()
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+1.5.12. t_lookup_request()
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Checks if a transaction exists. Returns a positive value if so,
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negative otherwise. Most likely you will not want to use it, as a
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@@ -1397,7 +1406,7 @@ if (t_lookup_request()) {
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};
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...
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-1.5.10. t_retransmit_reply()
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+1.5.13. t_retransmit_reply()
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Retransmits a reply sent previously by UAS transaction.
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@@ -1406,7 +1415,7 @@ if (t_lookup_request()) {
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t_retransmit_reply();
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...
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-1.5.11. t_release()
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+1.5.14. t_release()
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Remove transaction from memory (it will be first put on a wait timer to
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absorb delayed messages).
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@@ -1416,11 +1425,10 @@ t_retransmit_reply();
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t_release();
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...
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-1.5.12. t_forward_nonack() t_forward_nonack(ip, port)
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-t_forward_nonack_udp(ip, port) t_forward_nonack_tcp(ip, port)
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-t_forward_nonack_tls(ip, port) t_forward_nonack_sctp(ip, port)
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+1.5.15. t_forward_nonack([ip, port])
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- mainly for internal usage--forward a non-ACK request statefully.
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+ Mainly for internal usage -- forward a non-ACK request statefully.
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+ Variants of this functions can enforce a specific transport protocol.
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Meaning of the parameters is as follows:
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* ip - IP address where the message should be sent.
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@@ -1431,7 +1439,23 @@ t_forward_nonack_tls(ip, port) t_forward_nonack_sctp(ip, port)
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t_forward_nonack("1.2.3.4", "5060");
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...
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-1.5.13. t_set_fr(fr_inv_timeout [, fr_timeout])
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+1.5.16. t_forward_nonack_udp(ip, port)
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+
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+ See function t_forward_nonack([ip, port]).
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+
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+1.5.17. t_forward_nonack_tcp(ip, port)
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+
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+ See function t_forward_nonack([ip, port]).
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+
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+1.5.18. t_forward_nonack_tls(ip, port)
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+
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+ See function t_forward_nonack([ip, port]).
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+
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+1.5.19. t_forward_nonack_sctp(ip, port)
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+
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+ See function t_forward_nonack([ip, port]).
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+
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+1.5.20. t_set_fr(fr_inv_timeout [, fr_timeout])
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Sets the fr_inv_timeout and optionally fr_timeout for the current
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transaction or for transactions created during the same script
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@@ -1465,7 +1489,7 @@ branch_route[1] {
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}
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}
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-1.5.14. t_reset_fr()
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+1.5.21. t_reset_fr()
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Resets the fr_inv_timer and fr_timer for the current transaction to the
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default values (set using the tm module parameters fr_inv_timer and
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@@ -1484,7 +1508,7 @@ route {
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...
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}
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-1.5.15. t_set_max_lifetime(inv_lifetime, noninv_lifetime)
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+1.5.22. t_set_max_lifetime(inv_lifetime, noninv_lifetime)
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Sets the maximum lifetime for the current INVITE or non-INVITE
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transaction, or for transactions created during the same script
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@@ -1513,7 +1537,7 @@ route {
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# INVITE and to 15s if not
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}
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-1.5.16. t_reset_max_lifetime()
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+1.5.23. t_reset_max_lifetime()
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Resets the the maximum lifetime for the current INVITE or non-INVITE
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transaction to the default value (set using the tm module parameter
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@@ -1532,7 +1556,7 @@ route {
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...
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}
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-1.5.17. t_set_retr(retr_t1_interval, retr_t2_interval)
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+1.5.24. t_set_retr(retr_t1_interval, retr_t2_interval)
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Sets the retr_t1_interval and retr_t2_interval for the current
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transaction or for transactions created during the same script
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@@ -1578,7 +1602,7 @@ branch_route[1] {
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}
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}
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|
|
|
|
|
-1.5.18. t_reset_retr()
|
|
|
+1.5.25. t_reset_retr()
|
|
|
|
|
|
Resets the retr_timer1 and retr_timer2 for the current transaction to
|
|
|
the default values (set using the tm module parameters retr_timer1 and
|
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|
@@ -1597,7 +1621,7 @@ route {
|
|
|
...
|
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|
}
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|
|
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|
-1.5.19. t_set_auto_inv_100(0|1)
|
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|
+1.5.26. t_set_auto_inv_100(0|1)
|
|
|
|
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|
Switch automatically sending 100 replies to INVITEs on/off on a per
|
|
|
transaction basis. It overrides the auto_inv_100 value for the current
|
|
|
@@ -1614,7 +1638,7 @@ route {
|
|
|
...
|
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|
}
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|
-1.5.20. t_branch_timeout()
|
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+1.5.27. t_branch_timeout()
|
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|
Returns true if the failure route is executed for a branch that did
|
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|
timeout. It can be used only from the failure_route.
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@@ -1628,7 +1652,7 @@ failure_route[0]{
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|
}
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|
}
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-1.5.21. t_branch_replied()
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+1.5.28. t_branch_replied()
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|
Returns true if the failure route is executed for a branch that did
|
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|
receive at least one reply in the past (the "current" reply is not
|
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@@ -1646,7 +1670,7 @@ failure_route[0]{
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}
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}
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-1.5.22. t_any_timeout()
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+1.5.29. t_any_timeout()
|
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|
Returns true if at least one of the current transactions branches did
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|
timeout.
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@@ -1662,7 +1686,7 @@ failure_route[0]{
|
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|
}
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}
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-1.5.23. t_any_replied()
|
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+1.5.30. t_any_replied()
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|
Returns true if at least one of the current transactions branches did
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|
receive some reply in the past. If called from a failure or onreply
|
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@@ -1677,7 +1701,7 @@ onreply_route[0]{
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|
}
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}
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-1.5.24. t_grep_status("code")
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+1.5.31. t_grep_status("code")
|
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Returns true if "code" is the final reply received (or locally
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|
generated) in at least one of the current transactions branches.
|
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@@ -1691,7 +1715,7 @@ onreply_route[0]{
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|
}
|
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|
}
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-1.5.25. t_is_canceled()
|
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+1.5.32. t_is_canceled()
|
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Returns true if the current transaction was canceled.
|
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|
@@ -1704,7 +1728,7 @@ failure_route[0]{
|
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|
}
|
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|
}
|
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|
-1.5.26. t_is_expired()
|
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|
+1.5.33. t_is_expired()
|
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|
Returns true if the current transaction has already been expired, i.e.
|
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|
the max_inv_lifetime/max_noninv_lifetime interval has already elapsed.
|
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|
@@ -1718,7 +1742,7 @@ failure_route[0]{
|
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|
}
|
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|
}
|
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|
-1.5.27. t_relay_cancel()
|
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|
+1.5.34. t_relay_cancel()
|
|
|
|
|
|
Forwards the CANCEL if the corresponding INVITE transaction exists. The
|
|
|
function is supposed to be used at the very beginning of the script,
|
|
|
@@ -1743,7 +1767,7 @@ if (method == CANCEL) {
|
|
|
# do the same as for INVITEs
|
|
|
}
|
|
|
|
|
|
-1.5.28. t_lookup_cancel(), t_lookup_cancel(1)
|
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|
+1.5.35. t_lookup_cancel([1])
|
|
|
|
|
|
Returns true if the corresponding INVITE transaction exists for a
|
|
|
CANCEL request. The function can be called at the beginning of the
|
|
|
@@ -1775,7 +1799,7 @@ if (method == CANCEL) {
|
|
|
# do the same as for INVITEs
|
|
|
}
|
|
|
|
|
|
-1.5.29. t_drop_replies([mode])
|
|
|
+1.5.36. t_drop_replies([mode])
|
|
|
|
|
|
Drops all the previously received replies in failure_route block to
|
|
|
make sure that none of them is picked up again.
|
|
|
@@ -1803,7 +1827,7 @@ failure_route[0]{
|
|
|
}
|
|
|
}
|
|
|
|
|
|
-1.5.30. t_save_lumps()
|
|
|
+1.5.37. t_save_lumps()
|
|
|
|
|
|
Forces the modifications of the processed SIP message to be saved in
|
|
|
shared memory before t_relay() is called. The new branches which are
|
|
|
@@ -1843,7 +1867,7 @@ failure_route[1] {
|
|
|
t_relay();
|
|
|
}
|
|
|
|
|
|
-1.5.31. t_load_contacts()
|
|
|
+1.5.38. t_load_contacts()
|
|
|
|
|
|
This is the first of the two functions that can be used to implement
|
|
|
serial/parallel forking based on the q value of individual branches in
|
|
|
@@ -1896,7 +1920,7 @@ if (!t_load_contacts()) {
|
|
|
};
|
|
|
...
|
|
|
|
|
|
-1.5.32. t_next_contacts()
|
|
|
+1.5.39. t_next_contacts()
|
|
|
|
|
|
The function t_next_contacts is the second of the two functions that
|
|
|
can be used to implement serial/parallel forking based on the q value
|
|
|
@@ -1948,7 +1972,7 @@ if (!t_next_contacts()) {
|
|
|
};
|
|
|
...
|
|
|
|
|
|
-1.5.33. t_check_trans()
|
|
|
+1.5.40. t_check_trans()
|
|
|
|
|
|
t_check_trans() can be used to quickly check if a message belongs or is
|
|
|
related to a transaction. It behaves differently for different types of
|
|
|
@@ -1998,7 +2022,7 @@ if ( method == "CANCEL" && !t_check_trans())
|
|
|
sl_reply("403", "cancel out of the blue forbidden");
|
|
|
# note: in this example t_check_trans() can be replaced by t_lookup_cancel()
|
|
|
|
|
|
-1.5.34. t_set_disable_6xx(0|1)
|
|
|
+1.5.41. t_set_disable_6xx(0|1)
|
|
|
|
|
|
Turn off/on 6xx replies special rfc conformant handling on a per
|
|
|
transaction basis. If turned off (t_set_disable_6xx("1")) 6XXs will be
|
|
|
@@ -2017,7 +2041,7 @@ route {
|
|
|
...
|
|
|
}
|
|
|
|
|
|
-1.5.35. t_set_disable_failover(0|1)
|
|
|
+1.5.42. t_set_disable_failover(0|1)
|
|
|
|
|
|
Turn off/on dns failover on a per transaction basis.
|
|
|
|
|
|
@@ -2032,7 +2056,7 @@ route {
|
|
|
...
|
|
|
}
|
|
|
|
|
|
-1.5.36. t_replicate(params)
|
|
|
+1.5.43. t_replicate(params)
|
|
|
|
|
|
Replicate the SIP request to a specific address.
|
|
|
|
|
|
@@ -2067,7 +2091,7 @@ t_replicate("sip:$var(h);transport=tls");
|
|
|
t_replicate_to_udp("1.2.3.4", "5060");
|
|
|
...
|
|
|
|
|
|
-1.5.37. t_relay_to(proxy, flags)
|
|
|
+1.5.44. t_relay_to(proxy, flags)
|
|
|
|
|
|
Forward the SIP request to a specific address, controlling internal
|
|
|
behavior via flags.
|
|
|
@@ -2101,7 +2125,7 @@ t_relay_to("tls:1.2.3.4");
|
|
|
t_relay_to("0x01");
|
|
|
...
|
|
|
|
|
|
-1.5.38. t_set_no_e2e_cancel_reason(0|1)
|
|
|
+1.5.45. t_set_no_e2e_cancel_reason(0|1)
|
|
|
|
|
|
Enables/disables reason header (RFC 3326) copying from the triggering
|
|
|
received CANCEL to the generated hop-by-hop CANCEL. 0 enables and 1
|
|
|
@@ -2188,7 +2212,7 @@ end of body
|
|
|
|
|
|
1.6.2. Functions
|
|
|
|
|
|
-1.6.2.1. register_tmcb(cb_type, cb_func)
|
|
|
+1.6.2.1. register_tmcb(cb_type, cb_func)
|
|
|
|
|
|
For programmatic use only--register a function to be called back on an
|
|
|
event. See t_hooks.h for more details.
|
|
|
@@ -2197,7 +2221,7 @@ end of body
|
|
|
* cb_type - Callback type.
|
|
|
* cb_func - Callback function.
|
|
|
|
|
|
-1.6.2.2. load_tm(*import_structure)
|
|
|
+1.6.2.2. load_tm(*import_structure)
|
|
|
|
|
|
For programmatic use only--import exported TM functions. See the acc
|
|
|
module for an example of use.
|
|
|
@@ -2205,7 +2229,7 @@ end of body
|
|
|
Meaning of the parameters is as follows:
|
|
|
* import_structure - Pointer to the import structure.
|
|
|
|
|
|
-1.6.2.3. int t_suspend(struct sip_msg *msg, unsigned int *hash_index,
|
|
|
+1.6.2.3. int t_suspend(struct sip_msg *msg, unsigned int *hash_index,
|
|
|
unsigned int *label)
|
|
|
|
|
|
For programmatic use only. This function together with t_continue() can
|
|
|
@@ -2243,7 +2267,7 @@ unsigned int *label)
|
|
|
t_suspend() should return 0 to make sure that the script processing
|
|
|
does not continue.
|
|
|
|
|
|
-1.6.2.4. int t_continue(unsigned int hash_index, unsigned int label, struct
|
|
|
+1.6.2.4. int t_continue(unsigned int hash_index, unsigned int label, struct
|
|
|
action *route)
|
|
|
|
|
|
For programmatic use only. This function is the pair of t_suspend(),
|
|
|
@@ -2259,7 +2283,7 @@ action *route)
|
|
|
|
|
|
Return value: 0 - success, <0 - error.
|
|
|
|
|
|
-1.6.2.5. int t_cancel_suspend(unsigned int hash_index, unsigned int label)
|
|
|
+1.6.2.5. int t_cancel_suspend(unsigned int hash_index, unsigned int label)
|
|
|
|
|
|
For programmatic use only. This function is for revoking t_suspend()
|
|
|
from the same process as it was executed before. t_cancel_suspend() can
|
Daniel-Constantin Mierla