wireguard-openbsd/sys/kern/uipc_socket.c, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/sys/kern/uipc_socket.c?h=jd%2Fqueueboosts2020-06-22T13:14:32ZExtend kqueue interface with EVFILT_EXCEPT filter.2020-06-22T13:14:32Zmpimpi@openbsd.org2020-06-22T13:14:32Zurn:sha1:7ab02df9ba969938f0d288bc81680642c429c9c4
This filter, already implemented in macOS and Dragonfly BSD, returns
exceptional conditions like the reception of out-of-band data.
The functionnality is similar to poll(2)'s POLLPRI & POLLRDBAND and
it can be used by the kqfilter-based poll & select implementation.
ok millert@ on a previous version, ok visa@
Compare `so' and `sosp' types just after `sosp' obtaining. We can't splice2020-06-18T14:05:21Zmvsmvs@openbsd.org2020-06-18T14:05:21Zurn:sha1:6a4f7213e40fa1e06c0f29499c22abd45246ff7c
sockets from different domains so there is no reason to have locking and memory
allocation in this error path. Also in this case only `so' will be locked by
solock() so we should avoid `sosp' modification.
ok mpi@
Set __EV_HUP when the conditions matching poll(2)'s POLLUP are found.2020-06-15T15:29:40Zmpimpi@openbsd.org2020-06-15T15:29:40Zurn:sha1:2b88cdafd374c425bef518b6071e7ccde4677902
This is only done in poll-compatibility mode, when __EV_POLL is set.
ok visa@, millert@
In sosplice(), temporarily release the socket lock before calling2020-04-12T16:15:18Zantonanton@openbsd.org2020-04-12T16:15:18Zurn:sha1:27427a72e313439258e46363f1bc801d3c750a5c
FRELE() as the last reference could be dropped which in turn will cause
soclose() to be called where the socket lock is unconditionally
acquired. Note that this is only a problem for sockets protected by the
non-recursive NET_LOCK() right now.
ok mpi@ visa@
Reported-by: syzbot+7c805a09545d997b924d@syzkaller.appspotmail.com
Abstract the head of knote lists. This allows extending the lists,2020-04-07T13:27:50Zvisavisa@openbsd.org2020-04-07T13:27:50Zurn:sha1:9c969c9ab4dbfc69101f439c13329bb852e9fe18
for example, with locking assertions.
OK mpi@, anton@
Fix unlimited recursion caused by local outbound bcast/mcast packet2020-03-11T22:21:28Zsashansashan@openbsd.org2020-03-11T22:21:28Zurn:sha1:aa1987fe7ce43547b96c53f0bcd1bcbc69d88e5a
sent via spliced socket.
Reported-by: syzbot+2f9616f39d3f3b281cfb@syzkaller.appspotmail.com
OK bluhm@
Replace field f_isfd with field f_flags in struct filterops to allow2020-02-20T16:56:51Zvisavisa@openbsd.org2020-02-20T16:56:51Zurn:sha1:b821368957f060d7b1e9eeaa4fbc563e892edb32
adding more filter properties without cluttering the struct.
OK mpi@, anton@
Push the KERNEL_LOCK() insidge pgsigio() and selwakeup().2020-02-14T14:32:44Zmpimpi@openbsd.org2020-02-14T14:32:44Zurn:sha1:112e0b7cd8c0810f5e6ec8c11d147cff217a606d
The 3 subsystems: signal, poll/select and kqueue can now be addressed
separatly.
Note that bpf(4) and audio(4) currently delay the wakeups to a separate
context in order to respect the KERNEL_LOCK() requirement. Sockets (UDP,
TCP) and pipes spin to grab the lock for the sames reasons.
ok anton@, visa@
Keep socket timeout intervals in nsecs and use them with tsleep_nsec(9).2020-01-15T13:17:35Zmpimpi@openbsd.org2020-01-15T13:17:35Zurn:sha1:1a273344ae32a61ecc379c236ac9b23f6623257d
Introduce and use TIMEVAL_TO_NSEC() to convert SO_RCVTIMEO/SO_SNDTIMEO
specified values into nanoseconds. As a side effect it is now possible
to specify a timeout larger that (USHRT_MAX / 100) seconds.
To keep code simple `so_linger' now represents a number of seconds with
0 meaning no timeout or 'infinity'.
Yes, the 0 -> INFSLP API change makes conversions complicated as many
timeout holders are still memset()'d.
Inputs from cheloha@ and bluhm@, ok bluhm@
Use C99 designated initializers with struct filterops. In addition,2019-12-31T13:48:31Zvisavisa@openbsd.org2019-12-31T13:48:31Zurn:sha1:94321eb495589ab239b0671b5b64153695549a6a
make the structs const so that the data are put in .rodata.
OK mpi@, deraadt@, anton@, bluhm@