Commit ab17854f97 fixed access to v_mount when the
vnode is unlocked for nfs_copy_file_range().
This patch does the same for nfs_advlockasync().
MFC after: 1 week
Modify db_show_sysctl_all so that it does not copy more than once the
data of the input oid, and so that what it passes to db_show_oid does
not alarm coverity.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D36847
Commit ab17854f97 fixed access to v_mount when the
vnode is unlocked for nfs_copy_file_range().
This patch does the same for nfs_ioctl().
Reviewed by: kib, markj
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D36846
Add the glue code to support netlink in Linuxolator.
linux_common(4) now depends on netlink(4).
All netlink protocol constants are consistent with the Linux version.
However, certain OS-specific constants such as AF_INET6, interface
flags or default routing table id, are different between FreeBSD and
Linux. Thus, it may be needed to rewrite some message parts or even
rewrite the whole message, adding or removing some TLVs. The core
netlink implementation code provides efficient rewriting callbacks
which Linuxolator now uses.
Reviewed by: dchagin
Differential Revision: https://reviews.freebsd.org/D36361
MFC after: 2 months
Netlinks is a communication protocol currently used in Linux kernel to modify,
read and subscribe for nearly all networking state. Interfaces, addresses, routes,
firewall, fibs, vnets, etc are controlled via netlink.
It is async, TLV-based protocol, providing 1-1 and 1-many communications.
The current implementation supports the subset of NETLINK_ROUTE
family. To be more specific, the following is supported:
* Dumps:
- routes
- nexthops / nexthop groups
- interfaces
- interface addresses
- neighbors (arp/ndp)
* Notifications:
- interface arrival/departure
- interface address arrival/departure
- route addition/deletion
* Modifications:
- adding/deleting routes
- adding/deleting nexthops/nexthops groups
- adding/deleting neghbors
- adding/deleting interfaces (basic support only)
* Rtsock interaction
- route events are bridged both ways
The implementation also supports the NETLINK_GENERIC family framework.
Implementation notes:
Netlink is implemented via loadable/unloadable kernel module,
not touching many kernel parts.
Each netlink socket uses dedicated taskqueue to support async operations
that can sleep, such as interface creation. All message processing is
performed within these taskqueues.
Compatibility:
Most of the Netlink data models specified above maps to FreeBSD concepts
nicely. Unmodified ip(8) binary correctly works with
interfaces, addresses, routes, nexthops and nexthop groups. Some
software such as net/bird require header-only modifications to compile
and work with FreeBSD netlink.
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D36002
MFC after: 2 months
glibc-based interface.
Unfortunately, the glibc maintainers, despite knowing the existence
of the FreeBSD qsort_r(3) interface in 2004 and refused to add the
same interface to glibc based on grounds of the lack of standardization
and portability concerns, has decided it was a good idea to introduce
their own qsort_r(3) interface in 2007 as a GNU extension with a
slightly different and incompatible interface.
With the adoption of their interface as POSIX standard, let's switch
to the same prototype, there is no need to remain incompatible.
C++ and C applications written for the historical FreeBSD interface
get source level compatibility when building in C++ mode, or when
building with a C compiler with C11 generics support, provided that
the caller passes a fifth parameter of qsort_r() that exactly matches
the historical FreeBSD comparator function pointer type and does not
redefine the historical qsort_r(3) prototype in their source code.
Symbol versioning is used to keep old binaries working.
MFC: never
Relnotes: yes
Reviewed by: cem, imp, hps, pauamma
Differential revision: https://reviews.freebsd.org/D17083
As `ncpus` was otherwise unused, keeping track was pointless. Gets rid
of a warning from an unused variable.
Reviewed by: kib
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D36628
renice_abs_user and renice_rel_user tests modify global state, so they
are not compatible with parallel execution.
Reviewed by: asomers
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D36720
Use the correct option to suppress warnings due to discarding const
from pointers on GCC vs clang.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D36780
static_kenv is only used under `FDT`, and `try_load_dtb` is only defined
with `FDT`.
Reviewed by: andrew, imp, manu
Differential Revision: https://reviews.freebsd.org/D36791
The regnode interface is currently only built for FDT, thus not
applicable to ACPI-only kernels. Move the "regnode_if.h" include
underneath a previously existing FDT cpp segment.
Reviewed by: andrew, imp, manu
Differential Revision: https://reviews.freebsd.org/D36790
coresight_cpu_debug only has an FDT attachment, so let's not build it
for kernels without FDT.
coresight.h includes sys/malloc.h via header pollution
dev/ofw/openfirm.h; include it directly in case we're building without
FDT.
Reviewed by: andrew, manu
Differential Revision: https://reviews.freebsd.org/D36789
clang 14 doesn't properly determine that we're unconditionally returning
if we have ACPI but not FDT. Push FDT setup entirely into a new
function, much like we currently do with ACPI, and just return ENXIO if
that doesn't succeed.
Reviewed by: andrew, manu (earlier version)
Differential Revision: https://reviews.freebsd.org/D36788
syscon currently includes sys/malloc.h via header pollution from
dev/ofw/ofw_bus.h -> dev/ofw/openfirm.h. Fix the build without FDT
defined by including sys/malloc.h directly.
Reviewed by: andrew, imp, manu
Differential Revision: https://reviews.freebsd.org/D36787
The CAM version bump 0x19 -> 0x1a changed the CAMGETPASSTHRU definition,
so applications using the old ioctl are broken. However, that version
change did not affect anything relating to the ioctl implementation for
periphs.
Fixes: 8f9be1eed1 ("cam(4): Improve XPT_DEV_MATCH")
PR: 264709
Tested by: andreas.mahling@googlemail.com
Reviewed by: imp
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D36389
Mostly remove from the SEE ALSO section, adding a mention of the port
where not removed. Elsewhere, remove as appropriate and change from .Xr
to .Nm where a mention of telnetd continues to make sense (or removing
it would require significant reworking of the surrounding text).
Reviewed by: imp, delphij, emaste
Differential Revision: https://reviews.freebsd.org/D36785
Support for telnet(d) was commented out some time ago. Remove now that
telnetd is gone.
Reviewed by: imp, delphij, emaste
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D36782
- Add const and __unused qualifiers where appropriate.
- Localize some global variables.
- Consistently spell vmexit state as "vme" in vmexit handlers, to avoid
shadowing the global vm_exit state array.
- Similarly, avoid shadowing "optarg".
MFC after: 2 weeks
This is easier to read and addresses some compiler warnings.
One might expect these tables to be read-only but it seems that the
snapshot/restore code may modify them.
MFC after: 2 weeks
