ouroboros/src/irmd, branch 0.18.2

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

irmd: Remove unused variable in prog_table

2021-04-13T17:26:03+00:00

This removes a program name variable that was not used anymore. 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

build: Update email addresses

2021-01-03T10:57:05+00:00

The ugent email addresses are shut down, updated to Ouroboros mail addresses. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

build: Update copyright to 2021

2021-01-03T10:56:28+00:00

Happy New Year, Ouroboros! Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

irmd: Fix data race in flow allocation

2020-11-25T14:35:23+00:00

The flow information in the main loop is passed as a direct pointer to an irm_flow object in the flow database. This was (probably) not really an issue due to how the flow allocation operations work, but the thread sanitizer was barfing a lot of (correct) data race errors when running bigger tests, so now makes a safe copy of the data. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Complete retransmission logic

2020-09-25T09:52:51+00:00

This completes the retransmission (automated repeat-request, ARQ) logic, sending (delayed) ACK messages when needed. On deallocation, flows will ACK try to retransmit any remaining unacknowledged messages (unless the FRCTFLINGER flag is turned off; this is on by default). Applications can safely shut down as soon as everything is ACK'd (i.e. the current Delta-t run is done). The activity timeout is now passed to the IPCP for it to sleep before completing deallocation (and releasing the flow_id). That should be moved to the IRMd in due time. The timerwheel is revised to be multi-level to reduce memory consumption. The resolution bumps by a factor of 1 << RXMQ_BUMP (16) and each level has RXMQ_SLOTS (1 << 8) slots. The lowest level has a resolution of (1 << RXMQ_RES) (20) ns, which is roughly a millisecond. Currently, 3 levels are defined, so the largest delay we can schedule at each level is: Level 0: 256ms Level 1: 4s Level 2: about a minute. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

irmd: Don't always send pub key in alloc response

2020-03-30T11:13:36+00:00

The allocation response was always containing an ECDHE key, which is not needed if the client doesn't request an encrypted flow. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

irmd: Fix cleanup of shm_flow_set

2020-03-20T11:10:44+00:00

The shm_flowset destroy was using the irmd pid, resulting in wrong unlinks. The irmd was not cleaning up the process table, resulting in shm leaks if there were still running processes on exit. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

irm: Revise naming API

2020-03-15T13:20:38+00:00

This revises the naming API to treat names (or reg_name in the source) as first-class citizens of the architecture. This is more in line with the way they are described in the article. Operations have been added to create/destroy names independently of registering. This was previously done only as part of register, and there was no way to delete a name from the IRMd. The create call now allows specifying a policy for load-balancing incoming flows for a name. The default is the new round-robin load-balancer, the previous behaviour is still available as a spillover load-balancer. The register calls will still create a name if it doesn't exist, with the default round-robin load-balancer. The tools now have a "name" section, so the format is now irm name ... Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders