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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 <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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The previous shape registered no-op _rib_read / _rib_readdir /
_rib_getattr handlers when IPCP_FLOW_STATS was off, and there was a
bug where *buf was not set in the no-op causing free on an
uninitialized pointer.
IPCP_FLOW_STATS was referenced by config.h.in but the declaration was
lost during the CMake refactor.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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Adds an IPCP_ETH_FLOW_STATS cmake option (gated on HAVE_FUSE; default
off) exposing per-flow and aggregate frame counters at
/<ipcp>/eth/{summary,<fd>}.
Counters use RELAXED atomics; the macros expand to ((void) 0) when the
option is off. Per-flow and global counters live in nested stat
structs.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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This moves the build definitions back to src/ subdirectories
(CMakeLists.txt per component). Configuration and dependencies are
kept out of tree. Configuration options are bundled into cmake/config/
modules. Dependencies are grouped by component (system/, crypt/, eth/,
coverage/, etc.). It now consistently uses target-based commands
(target_include_directories, target_link_libraries) instead of global
include_directories(). Proper PRIVATE/PUBLIC visibility for executable
link libraries. CONFIG_OUROBOROS_DEBUG now properly set based on being
a valid debug config (not just checking the string name).
It also adds OuroborosTargets export for find_package() support and
CMake package config files (OuroborosConfig.cmake) for easier
integration with CMake projects.
The build logic now follows more idiomatic CMake practices with
configuration separated from target definitions.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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