wireguard-openbsd/sys/kern/kern_sysctl.c, branch jd/queueboostsWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/sys/kern/kern_sysctl.c?h=jd%2Fqueueboosts2020-06-22T02:45:18Zthere's not going to be any whole kernel wide network livelocks soon.2020-06-22T02:45:18Zdlgdlg@openbsd.org2020-06-22T02:45:18Zurn:sha1:0de7037a968aa89f7ec4dba4389f41679183f182rndvar.h not needed here2020-05-29T01:22:53Zderaadtderaadt@openbsd.org2020-05-29T01:22:53Zurn:sha1:416e7f624d7c7e736f2321f05d8daf48d6111744Return EINVAL for KERN_PROC if the size parameter is 0.2020-03-09T19:59:53Zmillertmillert@openbsd.org2020-03-09T19:59:53Zurn:sha1:5ce64eef948c7f368c4a2f4130eb9e9b2fe88b1a
Prevents a panic due to a NULL dereference; Coverity CID 1452899.
Based on a diff from mpi@, OK deraadt@ kettenis@
New `kern.allowdt' button must be set to open(2) /dev/dt.2020-01-24T14:00:31Zmpimpi@openbsd.org2020-01-24T14:00:31Zurn:sha1:c4318b7540a1c4c503732a1e40da9aaf95e3d46b
dt(4) exposes kernel internals, addresses and content of states to
userland. As such its interface shouldn't be available without
enabling it consciously.
ok millert@, deraadt@
Exclude offline cpus in KERN_CPTIME calculation. Without this too high2020-01-02T08:52:53Zclaudioclaudio@openbsd.org2020-01-02T08:52:53Zurn:sha1:6a2219e047a6bf62e09a0b176cd153e00effe3c9
idle time is reported in tools like vmstat.
OK visa@ benno@ krw@
Replace p_xstat with ps_xexit and ps_xsig2019-12-11T07:30:09Zguentherguenther@openbsd.org2019-12-11T07:30:09Zurn:sha1:381e34d2ea89fee5668fcdf23ae079bf0d0c5f37
Convert those to a consolidated status when needed in wait4(), kevent(),
and sysctl()
Pass exit code and signal separately to exit1()
(This also serves as prep for adding waitid(2))
ok mpi@
struct proc: change ps_start from utc time to uptime2019-10-22T21:19:22Zchelohacheloha@openbsd.org2019-10-22T21:19:22Zurn:sha1:fe57de6bf86372f8c8b447012d1d082826b5f1c4
Allows us to determine how long a process has been running, even if the
UTC clock jumps.
With help from bluhm@ and millert@, who squashed several bugs.
ok bluhm@ millert@
sysctl(2): add kern.utc_offset: successor to the DST/TIMEZONE options(4)2019-08-21T20:44:09Zchelohacheloha@openbsd.org2019-08-21T20:44:09Zurn:sha1:db1dd8d3f33835b58b53ec8a2619245839b6c1bf
The DST and TIMEZONE options(4) are incompatible with KARL, so we need
some other way to compensate for an RTC running with a known offset.
Enter kern.utc_offset, an offset in minutes East of UTC. TIMEZONE has
always been minutes West, but this is inconsistent with how everyone
else talks about timezones, hence the flip.
TIMEZONE has the advantage of being compiled into the binary. Our new
sysctl(2) has no such luck, so it needs to be set as early as possible
in boot, from sysctl.conf(5), so we can correct the kernel clock from
the RTC's local time to UTC before daemons like ntpd(8) and cron(8)
start. To encourage this, kern.utc_offset is made immutable after the
securelevel(7) is raised to 1.
Prompted by yasuoka@. Discussed with deraadt@, kettenis@, yasuoka@.
Additional testing by yasuoka@.
ok deraadt@, yasuoka@
Allow concurrent reads of the f_offset field of struct file by2019-08-05T08:35:59Zantonanton@openbsd.org2019-08-05T08:35:59Zurn:sha1:836f297b392ea9a1d38b1ff0cf70716087e44f8a
serializing both read/write operations using the existing file mutex.
The vnode lock still grants exclusive write access to the offset; the
mutex is only used to make the actual write atomic and prevent any
concurrent reader from observing intermediate values.
ok mpi@ visa@
Prevent integer overflow in kernel and userland when checking mbuf2019-07-16T17:39:02Zbluhmbluhm@openbsd.org2019-07-16T17:39:02Zurn:sha1:9392a7356dcbb9aa55ba792313ca7916e2904c2b
limits. Convert kernel variables and calculations for mbuf memory
into long to allow larger values on 64 bit machines. Put a range
check into the kernel sysctl. For the interface itself int is still
sufficient. In netstat -m cast all multiplications to unsigned
long to hold the product of two unsigned int.
input and OK visa@