13 Commits

Author	SHA1	Message	Date
Ophestra	91a2d4d6e1	internal/uevent: integrate error handling in event loop ... There are many subtleties when recovering from errors in the event loop, and coldboot requires internals to drain the receive buffer as synthetic uevents are being arranged. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-31 00:10:14 +09:00
Ophestra	f03c0fb249	internal/uevent: synthetic events for coldboot ... This causes the kernel to regenerate events that happened before earlyinit started. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-30 23:01:08 +09:00
Ophestra	b5592633f5	internal/uevent: separate recvmsg helper ... This enables messages to be received separately. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-30 02:53:26 +09:00
Ophestra	584e302168	internal/netlink: set receive buffer size ... This is done by both systemd sd-device and AOSP ueventd to improve robustness. Rosa OS will still handle ENOBUFS via coldboot but a big buffer should mitigate this as well. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-30 02:14:47 +09:00
Ophestra	141958656f	internal/uevent: handle state divergence ... This requires the caller to arrange for a coldboot to happen, some time after this error is encountered, and to resume event processing. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-30 01:50:09 +09:00
Ophestra	648079f42c	internal/netlink: switch to recvmsg/sendmsg ... These are more flexible than recvfrom/sendto. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-29 23:36:00 +09:00
Ophestra	ea014d6af2	internal/uevent: consume kernel-originated events ... These are not possible to cover outside integration vm. Extreme care is required when dealing with this method, so keep it simple. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-28 15:39:16 +09:00
Ophestra	1b48484c16	internal/uevent: exclusive socket access ... This is a much simplified mutex, since blocking is not required. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-28 01:01:06 +09:00
Ophestra	713bff3eb0	internal/uevent: decode uevent messages ... The wire format and behaviour is entirely undocumented. This is implemented by reading lib/kobject_uevent.c, with testdata collected from the internal/rosa kernel. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-28 00:49:34 +09:00
Ophestra	30f459e690	internal/uevent: nontrivial errors ... These errors are best represented as JSON. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-28 00:07:56 +09:00
Ophestra	8766fddcb3	internal/uevent: recoverable errors ... This runs in the Rosa OS init, so recover as much as possible, as otherwise it is likely to require a full system reboot to resume event processing. The caller is responsible for reporting the error. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-27 22:58:16 +09:00
Ophestra	2745602be3	internal/uevent: wrap netlink socket ... Unfortunately these messages do not have the same format as rtnetlink. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-27 22:46:18 +09:00
Ophestra	ee22847dde	internal/uevent: kobject_action lookup ... This is encoded as part of kobject uevent message headers. Signed-off-by: Ophestra <cat@gensokyo.uk>	2026-03-27 22:39:43 +09:00