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| author | Dimitri Staessens <dimitri@ouroboros.rocks> | 2026-05-10 17:45:56 +0200 |
|---|---|---|
| committer | Sander Vrijders <sander@ouroboros.rocks> | 2026-05-20 08:17:06 +0200 |
| commit | 9c10cd5c8db84e9b3fa6ca559cd2bce7a4235809 (patch) | |
| tree | 869f402fdc03d85ceab26416a3eba6226b610e4c /cmake | |
| parent | 46fa893af9ed74e2a473354c1777bd494b3374db (diff) | |
| download | ouroboros-9c10cd5c8db84e9b3fa6ca559cd2bce7a4235809.tar.gz ouroboros-9c10cd5c8db84e9b3fa6ca559cd2bce7a4235809.zip | |
ipcpd-eth: Tune raw sockets and retry queries
Add IPCP_ETH_SNDBUF/RCVBUF cmake build options so deployments can size
the AF_PACKET socket buffers without patching code. Drop the
O_NONBLOCK fcntl on the raw socket in favour of per-recvfrom
MSG_DONTWAIT so race-loser reader threads exit with EAGAIN without
spamming the log.
Track frame send failures and the SO_SNDBUF size in the eth/summary
RIB; log a one-shot warning when the kernel reports AF_PACKET drops.
Retry name queries up to NAME_QUERY_RETRIES times within
NAME_QUERY_TIMEO; a single lost ARP-style mgmt frame no longer fails
the query. Bump IRMd QUERY_TIMEOUT from 200 ms to 2200 ms so the IRMd
budget exceeds the new shim retry window.
Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/config/ipcp/eth.cmake | 4 | ||||
| -rw-r--r-- | cmake/config/irmd.cmake | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/cmake/config/ipcp/eth.cmake b/cmake/config/ipcp/eth.cmake index 4b9007d2..d336d647 100644 --- a/cmake/config/ipcp/eth.cmake +++ b/cmake/config/ipcp/eth.cmake @@ -10,6 +10,10 @@ set(IPCP_ETH_WR_THR 1 CACHE STRING "Number of writer threads in Ethernet IPCP") set(IPCP_ETH_QDISC_BYPASS false CACHE BOOL "Bypass the Qdisc in the kernel when using raw sockets") +set(IPCP_ETH_SNDBUF 0 CACHE STRING + "Raw socket SO_SNDBUF in bytes; 0 = leave kernel default (wmem_default)") +set(IPCP_ETH_RCVBUF 0 CACHE STRING + "Raw socket SO_RCVBUF in bytes; 0 = leave kernel default (rmem_default)") set(IPCP_ETH_LO_MTU 9000 CACHE STRING "Restrict Ethernet MTU over loopback interfaces") set(IPCP_ETH_MGMT_FRAME_SIZE 9000 CACHE STRING diff --git a/cmake/config/irmd.cmake b/cmake/config/irmd.cmake index b86a40c5..45d9e73d 100644 --- a/cmake/config/irmd.cmake +++ b/cmake/config/irmd.cmake @@ -10,8 +10,8 @@ set(ENROLL_TIMEOUT 20000 CACHE STRING "Timeout for an IPCP to enroll (ms)") set(REG_TIMEOUT 20000 CACHE STRING "Timeout for registering a name (ms)") -set(QUERY_TIMEOUT 200 CACHE STRING - "Timeout to query a name with an IPCP (ms)") +set(QUERY_TIMEOUT 2000 CACHE STRING + "Timeout to query a name with an IPCP (ms); must exceed shim retry budget") set(CONNECT_TIMEOUT 20000 CACHE STRING "Timeout to connect an IPCP to another IPCP (ms)") set(FLOW_ALLOC_TIMEOUT 20000 CACHE STRING |