ouroboros/src/lib, branch 0.18.3

lib: Don't initialize process RIB for IPCPs

2021-07-10T14:35:01+00:00

This will skip rib_init() at __init() for IPCPs (or at least, processes that have "ipcpd" in the executable name). The previous code tried to unmount the generic mount and then remount under the ipcp name, but it often failed because fuse_mount() is asynchronous and the mount was not up at the time of the unmount() call. Renaming the mount instead of unmounting failed for the same reason. This is a better fix for now. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Application RIB with FRCT statistics

2021-06-30T07:20:15+00:00

Application flows can now be monitored from the RIB, exposing FRCT statistics (window edges, retransmission timeout, rtt estimate, etc). Application RIB requires user permissions to be able to access /dev/fuse. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Pass full path for RIB entries

2021-06-29T06:56:03+00:00

The read functions for the RIB will now receive the full path, instead of only the entry name. For IPCPs, we organized the RIB in an ///entries structure with a directory per component, so we don't need the full path at this point. For process flow information, it's a lot more convenient to organize it the following way ///stat We can then register/unregister the flow descriptor when the frct instance is created, and for getting the stats, we'd know the flow descriptor from the fuse file path. If we would create a file per flow instead of a directory per flow, something like //flows/ we'd need to do additional bookkeeping to list the contents of that directory (we would need to track all flows with an active FRCT instance), that fuse knows because it tracks the directories. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Remove struct stat from RIB API

2021-06-28T13:29:19+00:00

The RIB API had a struct stat in the getattr() function, which made all components that exposed variables via the RIB dependent on . The rib now has its own struct rib_attr to set attributes such as size and last modified time. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Fix compilation with fuse (RIB) on FreeBSD

2021-06-28T13:29:16+00:00

Compilation failed on FreeBSD 14 with fuse enabled because of some missing definitions. __XSI_VISIBLE must be set before including for some definitions in . FreeBSD doesn't know the MSG_CONFIRM flag to sendto() or CLOCK_REALTIME_COARSE, which are Linux-specific. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib, ipcpd, irmd: Wrap pthread unlocks for cleanup

2021-06-23T06:36:48+00:00

This add an ouroboros/pthread.h header that wraps the pthread_..._unlock() functions for cleanup using pthread_cleanup_push() as this casting is not safe (and there were definitely bad casts in the code). The close() function is now also wrapped for cleanup in ouroboros/sockets.h. This allows enabling more compiler checks. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Bypass assertion in shm_rdrbuff

2021-06-21T06:46:47+00:00

This assert() causes ipcpd and subsequent irmd abort() when shutting down debug builds. Should be fixed some day when other components are more robust (frct retransmissions and routing). Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Move RIB initialization to common ground

2021-06-21T06:45:25+00:00

This moves Resource Information Base (RIB) initialization into the ipcp_init() function, so all IPCPs initialize a RIB. The RIB not shows some common IPCP information, such as the IPCP name, IPCP state and the layer name if the IPCP is part of a layer. The initialization of the hash algorithm and layer name was moved out of the common ipcp source because IPCPs may only know this information after enrollment. Some IPCPs were not even storing this information. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Remove raptor IPCP

2021-03-28T10:46:05+00:00

This removes the raptor IPCP. The code hasn't been updated for a while, and wouldn't compile. Raptor served its purpose as a PoC for Ouroboros-over-Ethernet-Layer-1, but giving the extreme niche hardware needed to run it, it's not worth maintaining this anymore. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

ipcpd: Single UDP port for the ipcpd-udp

2021-01-03T10:59:59+00:00

The UDP layer will now use a single (configurable) UDP port, default 3435. This makes it easer to allocate flows as a client from behind a NAT firewall without having to configure port forwarding rules. So basically, from now on Ouroboros traffic is transported over a bidirectional : UDP tunnel. The reason for not using/allowing different client/server ports is that it would require reading from different sockets using select() or something similar, but since we need the EID anyway (mgmt packets arrive on the same server UDP port), there's not a lot of benefit in doing it. Now the operation is similar to the ipcpd-eth, with the port somewhat functioning as a "layer name", where in UDP, the Ethertype functions as a "layer name". Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders