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Joachim Wiberg
be3891c2f0
Two races could prevent DHCP-learned default routes from being installed at boot: 1. The signal from the DHCP client script could be lost leaving conf.d updated but frr.conf stale. 2. Even when the signal was received, 'vtysh -b' could fail because the FRR daemon chain (mgmtd→zebra→staticd) writes PID files before being fully operational, causing netd to give up with no retry. Fix both by refactoring netd to use libev: - Use an inotify watch of CONF_DIR, so netd reacts directly to file changes without depending on signal delivery. - On backend_apply() failure, schedule a retry in 5s and call pidfile() unconditionally so dependent services are not blocked waiting for the Finit condition 'pid/netd' to be satisfied. We also take this opportunity to rename /etc/netd/conf.d/ to /etc/net.d/ The extra /etc/netd/ directory level served no purpose — nothing else lives there. Flatten to /etc/net.d/ which reads more naturally as the drop-in directory for network configuration snippets. Also, reduce logging a bit since each netd backend already logs success or fail which is sufficient to know that a configuration change has been applied or not. Finally, with the new inotify processing in netd it's redundant to call 'initctl reload netd' from the udhcpc script, in fact it will only cause unnecessary overhead, so we drop it. Fixes #1438 Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Board Support
The board support for an architecture always starts with Qemu support,
this is what each linux_defconfig at the very least sets up. Then
each $BR2_ARCH has additional BSPs, e.g., Banana Pi BPI-R3.
The board/ directory is matched with the configs/*_defconfigs and
the only execption is board/common/, which holds all shared files for
Infix builds.
Each board/$BR2_ARCH/ can then have vendor/product sub-directories
for the BSPs which may contain "fixups" to the base kernel config and
any additional device tree files that should be included as well.
To rebuild a board-specific package, e.g. NanoPi R2S:
make friendlyarm-nanopi-r2s-rebuild all