Beta support: MMS on chatty/mmsd on Modem Manager - help/testing wanted!

[kent]

Getting closer ... but not quite there. Chatty now creates a conversation with a message indicating a MMS notification has arrived via sms which Chatty is working to download and parse.

Based on the mmsd output, it looks like the request never actually goes out though.

Code:

mmsd[6172]: src/service.c:mms_service_push_notify() did decode message
mmsd[6172]: src/service.c:mms_service_push_notify() is type NI?
mmsd[6172]: src/service.c:mms_service_push_notify() type is NI
mmsd[6172]: MMS transaction id: A20103012201500004000000000
mmsd[6172]: MMS version: 1.0
mmsd[6172]: From: +15555555555/TYPE=PLMN
mmsd[6172]: Subject:
mmsd[6172]: Class: Personal
mmsd[6172]: Size: 32768
mmsd[6172]: Expiry: 2021-01-06T01:22:04+0000
mmsd[6172]: Location: http://166.216.198.5:8004/Y/0103012201500004000000000
mmsd[6172]: src/service.c:mms_service_push_notify() about to store_meta_open 2
mmsd[6172]: src/service.c:mms_service_push_notify() did store_meta_open 2
mmsd[6172]: src/service.c:mms_service_push_notify() did create_request
mmsd[6172]: src/service.c:activate_bearer() service 0xaaab0c023bf0 setup 0 active 1
mmsd[6172]: src/service.c:process_request_queue() service 0xaaab0c023bf0
mmsd[6172]: src/service.c:process_request_queue() location http://166.216.198.5:8004/Y/0103012201500004000000000
request http://166.216.198.5:8004/Y/0103012201500004000000000
address proxy.mobile.att.net
port 80
host 166.216.198.5:8004
flags 0
request http://166.216.198.5:8004/Y/0103012201500004000000000
mmsd[6172]: Cannot process request (request type: 0)

The problem tracks back to the do_request() function call in gweb.c.  There is a getaddrinfo() command failing with a "Name or service not known" error code trying to resolve the proxy host information, but I can't figure out exactly why (~line#1320) . I verified the values being passed for the name and port inputs look correct, and verified "proxy.mobile.att.net" host resolves fine with a manual ns lookup.

I'm stumped for the moment.

If you have a matrix account, I generally hang out on the mobian and pmOS channels. Perhaps me helping you live would be easier?

I don't have a matrix account ... but I'll look into it. Any help is appreciated, but mostly I'm logging progress here in case something I'm coming across is useful (and I'm enough of a noob I can't quite tell the difference yet). I don't expect you to stop what you are working on to solve everything. 

I figured out what's going on. There is an addr_info() flag requiring a numeric ip address, which disables DNS lookup. The easiest solution is to just comment out that flag so addr_info() resolves a text domain name. This seems to work, but I'm not sure if that will break something else. So I've put in a hack at that level to do a dns lookup and replace if the session->address is not a valid numeric ip address.

This hack probably isn't a great final solution for production though.

Also, turns out it is possible to make a bloody mess of the mmsd request queue. There probably needs to be logic that eventually removes queue entries that can't be resolved (e.g. 404 Message not found in database).