From 5c239c128c04883dbed6d66f574edf8b48d11e11 Mon Sep 17 00:00:00 2001 From: Dimitri Staessens Date: Sun, 16 Aug 2026 18:55:15 +0000 Subject: lib: Replace shim IPCPs with points of attachment Removes the UDP and Ethernet shim IPCPs. The unicast and broadcast IPCPs can now directly attach to a "legacy" socket. We adopt Saltzer's Point-of-Attachment terminology, also advocated in Day's "Patterns in Network Architecture". The "poa" component manages these PoA's with one management thread, one link monitoring thread and one thread per attached point. For Ethernet PoA's the irm connect and enroll can resolve the destination IPCP or Layer name with a broadcast name query over the attached PoAs (first reply wins). UDP PoA's require a destination IP address or FQDN. attach to a local endpoint (required both server and client side): irm ipcp poa attach name a udp 10.0.0.1 irm ipcp poa attach name a udp 10.0.0.1:3435 irm ipcp poa attach name a udp [::1]:3435 irm ipcp poa attach name a eth dev eth0 irm ipcp poa attach name a eth dev eth0 ethertype 0xA000 release a PoA (refused while it carries a flow): irm ipcp poa detach name a udp 10.0.0.1:3435 irm ipcp poa detach name a eth eth0 list an IPCP's PoAs: irm ipcp poa list name a connect to a peer, by name or at an address: irm ipcp connect name b dst a irm ipcp connect name b dst a eth irm ipcp connect name b dst a eth dev eth0 irm ipcp connect name b dst a udp 10.0.0.1:3435 irm ipcp connect name b dst a udp peer.example.com:3435 disconnect by peer name, no address: irm ipcp disconnect name b dst a irm ipcp disconnect name b dst a component mgmt enroll has the same shape as connect: irm ipcp enroll name b layer lr autobind irm ipcp enroll name b layer lr autobind eth dev eth0 irm ipcp enroll name b layer lr autobind udp 10.0.0.1:3435 the IRMd config file attaches PoAs and names peers the same way: udp = [ "10.0.0.1", "10.0.0.1:3436" ] eth = [ "eth0", {dev="eth1", ethertype=0xA007} ] enrol={dst="LAN", eth={dev="eth0"}} conn=[{dst="lan3", eth={}}, {dst="lan4", udp="10.0.0.1:3435"}] Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders --- src/lib/pb/model.proto | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/lib/pb/model.proto') diff --git a/src/lib/pb/model.proto b/src/lib/pb/model.proto index 4c1564a5..e00f3e12 100644 --- a/src/lib/pb/model.proto +++ b/src/lib/pb/model.proto @@ -58,6 +58,19 @@ message layer_info_msg { required uint32 dir_hash_algo = 2; } +/* Address of a flow PoA peer. */ +message poa_addr_msg { + required uint32 type = 1; /* enum poa_type */ + optional uint32 ip4 = 2; + optional bytes ip6 = 3; + optional uint32 port = 4; + optional bytes mac = 5; + optional uint32 ethertype = 6; + optional string dev = 7; /* our device, eth only */ + optional string hostname = 8; /* IRMd resolves, UDP only */ + optional bytes src_mac = 9; /* our MAC, eth only */ +} + message ipcp_info_msg { required uint32 type = 1; required string name = 2; -- cgit v1.2.3