ouroboros/src, branch 0.17.4

ipcpd: Remove some unused variables

2020-05-02T09:52:54+00:00

The compiler spotted some variables that weren't really used. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Fix retransmission DRF update

2020-05-02T09:34:28+00:00

The retransmission was always disabling the DRF flag. This caused problems with the loss of the first packet, which of course needs a DRF flag set. The retransmitted packet will now contain a the original DRF flag and an updated ack number. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Create an rxmwheel per flow

2020-05-02T09:34:28+00:00

The single retransmission wheel caused locking headaches as the calls for different flows could block on the same rxmwheel. This stabilizes the stack, but if the rdrbuff gets full there can now be big delays. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

tools: Stop oping client cleanly on bad write

2020-05-02T08:07:58+00:00

On a bad write, the writer thread would shutdown, leaving the client hanging. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Fix updating retransmission wheel

2020-05-01T08:13:10+00:00

Fixes infinite rescheduling with RTO getting lower than the timerwheel resolution. For very low RTO values we'd need a big packet buffer with the current memory allocator implementation (rdrbuff). Setting a (configurable) minimum RTO (250 us) reduces this need. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders

lib: Unmount stale RIB directories

2020-04-30T10:32:53+00:00

If Ouroboros crashed, the RIB directory might still be mounted. This checks if this is the case, then unmounts it. Signed-off-by: Sander Vrijders Signed-off-by: Dimitri Staessens

lib: Stabilize FRCP under packet loss conditions

2020-04-30T09:54:44+00:00

There were a bunch of bugs in FRCP that urgently needed fixing. Now data QoS is usable even with heavy packet loss (within some parameters). The current RTT estimator is the IETF one. It should be updated to the improved one used in the Linux kernel once the A-timer (ACKs without data) and graceful shutdown are implemented. 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

lib: Fix thread management in thread pool manager

2020-03-20T09:42:52+00:00

The thread pool manager wasn't counting working threads when deciding to create new ones, resulting in constant starting of new threads when threads were busy. Signed-off-by: Dimitri Staessens Signed-off-by: Sander Vrijders