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.
43 lines
1.9 KiB
Markdown
43 lines
1.9 KiB
Markdown
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.
|