Commit Graph

9 Commits

Author SHA1 Message Date
Rusty Russell 4839916038 lightningd/cryptomsg: discard unknown odd messages internally.
This saves all callers having to handle it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell a845b07ada lightningd/cryptomsg: only free written messages if they're marked take().
This fixes a leak in gossip, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-07 11:38:20 +10:30
Rusty Russell 90737371d0 lightningd/cryptomsg: split raw crypto_state vs peer_crypto_state
Raw crypto_state is what we send across the wire: the peer one is for
use in async crypto io routines (peer_read_message/peer_write_message).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:56 +10:30
Rusty Russell 13ac472062 lightningd/crypto_sync: fix sync_crypto_write / sync_crypto_read
wire_sync_write() adds length, but we already have it, so use write_all.

sync_crypto_read() handed an on-stack buffer to cryptomsg_decrypt_header,
which expected a tal() pointer, so use the known length instead.

sync_crypto_read() also failed to read the tag; add that in (no
overflow possible as 16 is an int, len is a u16).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:35 +10:30
Christian Decker 597687d1f0 Fix CI build
Extraneous whitespace in cryptomsg.h
2017-02-21 17:56:35 +01:00
Rusty Russell e3f2d72d4d crypto_sync: synchronous routines for inter-peer crypto.
This is used by the opening daemon, for example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-21 15:15:29 +10:30
Rusty Russell 9fd40da38c generate-wire: don't hand unknown structures specially.
It's awkward to handle them differently.  But this change means we
need to expose them to the generated code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-21 15:15:19 +10:30
Rusty Russell 6a089ce112 cryptomsg: add towire/fromwire for crypto state.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-01-10 15:38:33 +10:30
Rusty Russell a7f682c66e lightningd/cryptomsg: routines to encrypt on the wire.
After the handshake, it's a simple matter of AEAD and key rotation.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-01-10 15:38:33 +10:30