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Add RFC 3327 Path header support to chan_sip

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This patch adds support for RFC 3327 "Path" headers. This can be enabled in
sip.conf using the 'supportpath' setting, either on a global basis or on a
peer basis. This setting enables Asterisk to route outgoing out-of-dialog
requests via a set of proxies by using a pre-loaded route-set defined by the
Path headers in the REGISTER request. This patch also adds Realtime support
for dynamically updating the Path information for a peer.

A huge thank-you to Klaus Darillion and Olle E Johansson for their efforts
in writing this patch.

Review: https://reviewboard.asterisk.org/r/2235/
Review: https://reviewboard.asterisk.org/r/991/

(closes issue ASTERISK-16884)
Reported by: klaus3000
Tested by: klaus3000, oej, mjordan
patches:
  path-1.8.0-patch.txt uploaded by klaus3000 (License 5054)
  oolong-path-support-trunk in team branch by oej (License 5267)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@382440 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Jordan
2013-03-05 13:14:43 +00:00
parent 469ca1c71d
commit 8d5c36c9bb
10 changed files with 316 additions and 39 deletions
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5
channels/sip/include/sip.h
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@@ -294,6 +294,7 @@
#define SIP_PROG_INBAND_NO (1 << 25)
#define SIP_PROG_INBAND_YES (2 << 25)
#define SIP_USEPATH (1 << 27) /*!< GDP: Trust and use incoming Path headers? */
#define SIP_SENDRPID (3 << 29) /*!< DP: Remote Party-ID Support */
#define SIP_SENDRPID_NO (0 << 29)
#define SIP_SENDRPID_PAI (1 << 29) /*!< Use "P-Asserted-Identity" for rpid */
@@ -304,7 +305,7 @@
#define SIP_FLAGS_TO_COPY \
(SIP_PROMISCREDIR | SIP_TRUSTRPID | SIP_SENDRPID | SIP_DTMF | SIP_REINVITE | \
SIP_PROG_INBAND | SIP_USECLIENTCODE | SIP_NAT_FORCE_RPORT | SIP_G726_NONSTANDARD | \
SIP_USEREQPHONE | SIP_INSECURE)
SIP_USEREQPHONE | SIP_INSECURE | SIP_USEPATH)
/*@}*/
/*! \name SIPflags2
@@ -737,6 +738,7 @@ struct __show_chan_arg {
struct sip_settings {
int peer_rtupdate; /*!< G: Update database with registration data for peer? */
int rtsave_sysname; /*!< G: Save system name at registration? */
int rtsave_path; /*!< G: Save path header on registration */
int ignore_regexpire; /*!< G: Ignore expiration of peer */
int rtautoclear; /*!< Realtime ?? */
int directrtpsetup; /*!< Enable support for Direct RTP setup (no re-invites) */
@@ -1368,6 +1370,7 @@ struct sip_peer {
int timer_t1; /*!< The maximum T1 value for the peer */
int timer_b; /*!< The maximum timer B (transaction timeouts) */
int fromdomainport; /*!< The From: domain port */
struct sip_route *path; /*!< Head of linked list of out-of-dialog outgoing routing steps (fm Path headers) */
/*XXX Seems like we suddenly have two flags with the same content. Why? To be continued... */
enum sip_peer_type type; /*!< Distinguish between "user" and "peer" types. This is used solely for CLI and manager commands */