kurogeek
d623ef8470
Replace the static prefix+extension numbering with random 6 digit box numbers (100000-999999) signed by the machine's yggdrasil key. A serf gossip cluster on yggdrasil port 7946 exchanges the signed records; phonebox-sync verifies key -> address derivation and the signature and writes the number -> address map to /run/phonebox/numbers for the asterisk dialplan. Any yggdrasil node running the service can reach any other; clan-core's ygg-input filter is opened for SIP, RTP and gossip. Drop the server-prefix-number and ata-local-number vars, add a two-node VM test that proves directory convergence and a call over yggdrasil.
1.9 KiB
A peer to peer phone relay network built on top of yggdrasil.
Every box is reachable from any yggdrasil node running this service, not only from members of the same clan.
Numbers
Each box gets a random 6 digit number (100000-999999) when its vars are
generated. The number is signed with the box's yggdrasil private key, so a
number is cryptographically bound to the yggdrasil address it belongs to;
nobody can claim a number for an address they do not own. Regenerate the
phonebox vars to get a new number.
Dialing from a phone plugged into the ATA:
| dialed | reaches |
|---|---|
NNNNNN |
the phone on box NNNNNN (line 00) |
NNNNNNXX |
line XX on box NNNNNN |
00, 01... |
local lines on this box |
888 |
fax of the current number directory |
000 |
fax echo test |
999 |
hello world |
Caller ID on the callee is the caller's box number followed by its line, so calling it back works.
Directory
There is no central registry. Each box runs a serf agent on yggdrasil port
7946 that gossips its signed number record (number, key, sig, owner
tags) to every other box it knows about. On every membership change the
phonebox-sync handler verifies all records and writes the resulting
number -> yggdrasil address map to /run/phonebox/numbers/, which the
asterisk dialplan reads at call time.
Bootstrapping: boxes of the same clan join each other automatically. To
connect to boxes outside the clan add one of their yggdrasil addresses to
extraPeers; after the first successful join the agent remembers the whole
membership in /var/lib/phonebox/serf.snapshot and rejoins on its own.
serf members -rpc-addr 127.0.0.1:7373 shows the live directory.