Improve Proportional Rate Reduction (RFC6937) by using a
heuristic, which automatically chooses between
conservative CRB and more aggressive SSRB modes.
Only when snd_una advances (a partial ACK), SSRB may be
used. Also, that ACK must not have any indication of
ongoing loss - using the addition of new holes into the
scoreboard as proxy for such an event.
MFC after: 4 weeks
Reviewed By: #transport, kbowling, rrs
Sponsored By: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D28822
(cherry picked from commit 49a6fbe38728173da74d5b497f700178e2a6c830)
This was handy for some ad-hoc debugging and fits in with other
kmsan_check_*() routines which operate on some kind of data container.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
(cherry picked from commit be5464ae233ada46a778cc82f7107a10a7d5343b)
Replace int with either size_t or ssize_t (depending on context) in
order to support bit strings up to SSIZE_MAX bits in length. Since
some of the arguments that need to change type are pointers, we must
resort to light preprocessor trickery to avoid breaking existing code.
MFC after: 3 weeks
Sponsored by: Klara, Inc.
Reviewed by: kevans
Differential Revision: https://reviews.freebsd.org/D42698
(cherry picked from commit c56f45f2a9da7d989b79fd6c34b63100609ff9ae)
It is possible to reach this function from ddb via the "reset" command.
When this happens, we don't actually exit kdb, meaning we never execute
the latter steps of kdb_break() to restore the system state (e.g.
re-enable scheduler).
Therefore, we should not clear the kdb_active flag in this function, as
the debugger is still active. Put differently, kern_reboot() is not an
authority on kdb state, and should not touch it. The original motivation
for this assignment is not clear; I have checked thoroughly and I am
convinced it is not required by any reset code.
This fixes an edge case where a panic can be triggered during reset from
ddb:
1. Enter ddb via keyboard break sequence (KERNEL_PANICKED() == false &&
td->td_critnest > 0)
2. Execute the "reset" command
3. kern_reboot() sets kdb_active = false
4. A witness_checkorder() call via shutdown handler sees !kdb_active
and panics
Reviewed by: imp, markj
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D42684
(cherry picked from commit 4e78a766f607192698514d970ff4e9fa91d0482d)
ieee80211_unref_node() was only used in two error cases in
ieee80211_send_nulldata(). There we do not need to guard against
ni pointer reuse after decrementing the refcount of the ni as we
only update the stats and return.
Update the man page and remove the link for the now gone function.
Note: the last uses of the function were removed in 493d625543.
Sponsored by: The FreeBSD Foundation
Reviewed by: adrian, emaste
Differential Revision: https://reviews.freebsd.org/D42035
(cherry picked from commit 1137943b1c5b225e30b82350ff7fb12c258ea90f)
Summary:
Provide an implementation of fpu_kern_enter/fpu_kern_leave for PPC to
enable FPU, VSX, and Altivec usage in-kernel. The functions currently
only support FPU_KERN_NOCTX, but this is sufficient for ossl(1) and many
other users of the API.
This patchset has been tested on powerpc64le using a modified version of
the in-tree tools/tools/crypto/cryptocheck.c tool to check for FPU/Vec
register clobbering along with a follow-up patch to enable ossl(4) on
powerpc64*.
Reviewed by: jhibbits
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D41540
Relnotes: yes
(cherry picked from commit a6662c37b6ffee46e18be5f7570149edc64c1d0b)
On D40102 we implemented support for transport over IPv6 but the
documentation was not updated to reflect the new feature.
Clarify what is available and how it can be used.
MFC after: 1 week
Sponsored by: InnoGames GmbH
Differential Revision: https://reviews.freebsd.org/D42505
(cherry picked from commit 81d4c786209bfa3752c25b2564eb363027f5d914)
Allow SCTP state timeouts to be configured independently from TCP state
timeouts.
Reviewed by: tuexen
MFC after: 1 week
Sponsored by: Orange Business Services
Differential Revision: https://reviews.freebsd.org/D42393
(cherry picked from commit ca9dbde88122beb079b55fb4580b200f73044da6)
The nvlist based state retrieval ioctl has been replaced by an old-style
ioctl for performance reasons. Document that one.
Reported by: Michael Gmelin <grembo@freebsd.org>
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D42331
(cherry picked from commit 6869f90bf5bbb2f5ae5400e3a435b3680991321d)
This patch adds the necessary kernel and stty code to support setting
the IUTF8 flag for ttys. It is the first of two patches that fix
backspace behaviour for UTF-8 encoded characters when in canonical mode.
Reported by: christos
Reviewed by: christos, imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D42066
(cherry picked from commit 128f63cedc14ae21b35f74e11e2fe1a5659c58e8)
This helps with building small container images using pkgbase.
Reviewed by: manu bapt
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D41861
(cherry picked from commit 74da9c39c3460213750477204979989b5c39cbcd)
Using the effective group and not the real one when testing membership
has the consequence that unprivileged processes cannot see setuid
commands they launch until these have relinquished their privileges.
This is also in contradiction with how the similar cr_canseeotheruids()
works, i.e., by taking into account real user IDs.
Fix this by substituting groupmember() with realgroupmember(). While
here, simplify the code.
PR: 272093
Reviewed by: mhorne
MFC after: 2 weeks
Sponsored by: Kumacom SAS
Differential Revision: https://reviews.freebsd.org/D40642
Differential Revision: https://reviews.freebsd.org/D40644
(cherry picked from commit 91658080f1a598ddda03943a783c9a941199f7d2)
(cherry picked from commit 0452dd841336cea7cd979b13ef12b6ea5e992eff)
Like groupmember(), but taking into account the real group instead of
the effective group. Leverages the new supplementary_group_member()
function.
Reviewed by: mhorne
MFC after: 2 weeks
Sponsored by: Kumacom SAS
Differential Revision: https://reviews.freebsd.org/D40641
Differential Revision: https://reviews.freebsd.org/D40643
(cherry picked from commit 2a2bfa6ad92e9c82dcc55733ad2fd58fd2ea7559)
(cherry picked from commit 5d9f38405a10fdcd9fc108c940dcf2642e9f1833)
Mention cr_bsd_visible(9). Remove references to cr_canseeothergids(9)
and cr_canseeotheruids(9), as well as indirect references not
immediately useful.
Fix description of credentials checks to match reality.
Re-order errors to match code's check order.
Reviewed by: bcr, pauamma_gundo.com
MFC after: 2 weeks
Sponsored by: Kumacom SAS
Differential Revision: https://reviews.freebsd.org/D40638
(cherry picked from commit eb94f24fab4b44f13ca045370d9fcf12ca8835f2)
Essentially defer to cr_cansee(9), except for the specifics.
Be more specific on the return codes.
Reviewed by: bcr, pauamma_gundo.com
MFC after: 2 weeks
Sponsored by: Kumacom SAS
Differential Revision: https://reviews.freebsd.org/D40637
(cherry picked from commit 2ede38aff5d4c91a17ab6d093f2e8cce24b5418b)
When these functions were renamed 7 years ago, their man pages were not.
Rename the latter in accordance and fix the names inside them. Fix
references to them as well. Add the old man pages to the list of
obsolete files.
Reviewed by: mhorne
MFC after: 2 weeks
Sponsored by: Kumacom SAS
Differential Revision: https://reviews.freebsd.org/D40630
(cherry picked from commit c59ab75c04fa32bc6d292596ff5e4593a05a6b1b)
The AX88179A has two firmware modes, one of which is backward
compatible with existing AX88178A/179 driver. The active firmware mode
can be controlled through a register.
Update axge(4) man page to mention 179A support and ensure that, when
bound to a AX88179A, the driver activates the compatible firmware mode.
Reviewed by: markj
Pull Request: https://github.com/freebsd/freebsd-src/pull/854
MFC after: 1 week
(cherry picked from commit 6962da914dd511349b219241e92b32329be76fc6)
This is an initial take on documenting vulnerability mitigations.
Connect mitigations(7) to the build
Also add some cross references.
Reviewed by: gbe (earlier)
Sponsored by: The FreeBSD Foundation
Co-authored-by: Olivier Certner <olce.freebsd@certner.fr>
Differential Revision: https://reviews.freebsd.org/D41794
(cherry picked from commit b6a61ac2d475fba9c45f7f407549a522f60dea18)
(cherry picked from commit 6e5dcc6113da649a79e5bc2c3ea9329bcd1d85d5)
(cherry picked from commit a2b289608d6b54b6e1ce85096560807e551bb5ac)
Update the man pages for iwlwifi.4 and iwlwififw.4 to list the
current state of devices supported and which firmware they need.
The list is automatically generated based on a sysctl added to the
iwlwifi driver (so this is the driver's view). The reader should
not be surprised by the larger number of any/any/any/any entries
for PCI vendor and devices in the firmware table for which other
matching logic happens. The reader should also not be confused
about "TBD" (to be done) entries for chipsets which the driver
already supports but have no (public) product yet.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 242f314842767c36eaaacca9f433c80d34def39c)
The last comprehensive sync with OpenBSD's pf corresponds to
OpenBSD 4.5, but many changes have been ported over since then.
Reviewed by: kp, gbe, Kajetan Staszkiewicz <vegeta@tuxpowered.net>
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D42002
(cherry picked from commit 3e609fd481c07802fe837ed834c3710b8c19493c)
arm (pre-v6/v7) and sparc64 listed 12.x as the final release. 12.4 is
the final 12.x release so we can fix the version number.
(cherry picked from commit d06328c37bbcf3d3d3c7601372d29237996a6f6a)
As noted in 59169d9156,
tmpfs(5) supports the union option just fine.
MFC after: 7 days
(cherry picked from commit 1d225179fd5d7eb932486a94abb8b76be7e44241)
