Hello ladies,
I just added initial support for network change detection. This seems
to work for OS X, but Linux and Windows support are missing. Here's
the short introduction:
The idea behind is to enable stack recovering in an environment where
IP address or network changes. Change of address can be caused by
DHCP, switching from fixed to wireless etc. Network change detection
commands Sofia-SIP to restart tport (re-bind sockets) and updates NTA
accordingly.
Change detection can be enabled as a tag
"NTATAG_DETECT_NETWORK_UPDATES" to nua_create(). This tag can have
three different values:
NTA_NW_DETECT_NOTHING: do nothing
NTA_NW_DETECT_ONLY_INFO: only send an event to application, let user
handle the logic and needed actions
NTA_NW_DETECT_TRY_FULL: try to update all transactions and send an
event to application
With the last option NTA will re-REGISTER and user should not notice
anything. This of course works only with signaling; any media session
will be terminated. Currently NTA is still missing the logic to
update tport, this is under work.
Patches are available in the darcs tree, comments are welcome :)
BR,
Martti
Tue Aug 15 09:05:18 EEST 2006 [EMAIL PROTECTED]
* Network detection: added su_os_nw.[ch]
A ./libsofia-sip-ua/su/sofia-sip/su_os_nw.h
A ./libsofia-sip-ua/su/su_os_nw.c
M ./libsofia-sip-ua/su/su_wait.c +1
Tue Aug 15 09:01:40 EEST 2006 [EMAIL PROTECTED]
* Network detection: NTA headers updated
M ./libsofia-sip-ua/nta/nta_internal.h -125 +128
M ./libsofia-sip-ua/nta/sofia-sip/nta.h +7
M ./libsofia-sip-ua/nta/sofia-sip/nta_tag.h +18
Tue Aug 15 09:00:25 EEST 2006 [EMAIL PROTECTED]
* Network change detection: NTA updated to support
M ./libsofia-sip-ua/nta/nta.c +68
M ./libsofia-sip-ua/nta/nta_tag.c +2
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