Rick Macklem [Fri, 23 Dec 2022 23:17:34 +0000 (15:17 -0800)]
nfsd: Handle file systems without a VOP_VPTOFH()
Unlike NFSv3, the NFSv4 server follows mount points
within the file system tree below the NFSv4 root directory.
If there is a file system mounted within this subtree
that returns EOPNOTSUPP for VOP_VPTOFH(), the NFSv4 server
would return an error for the mount point entry.
This resulted in an "I/O error" report from the Linux NFSv4
client. It also put an error code in the Readdir reply
that is not defined in the NFSv4 RFCs.
For the FreeBSD NFSv4 client, the entry with the error would
be ignored, which I think is reasonable behaviour for a
mounted file system that can never be exported.
This patch changes the NFSv4 server behaviour to ignore the
mount point entry and not send it in the Readdir reply.
It also changes the behaviour of Lookup for the entry so
that it replies ENOENT for the mount point directory, so
that it is consistent with no entry in the Readdir reply.
With these two changes, the Linux client behaviour is the
same as the FreeBSD client behaviour. It also avoids
putting an unknown error on the wire to the client.
Doug Moore [Thu, 22 Dec 2022 20:31:57 +0000 (14:31 -0600)]
iommu_gas: avoid overflow in bounds check
Change the range test in iommu_gas_match_one from '< ubound' to '<=
ubound', and pass a smaller-by-one ubound parameter to it, to avoid
overflow in ubound calculation.
Reported by: andrew
Reviewed by: andrew (previous version)
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D37764
Juraj Lutter [Thu, 8 Dec 2022 20:30:26 +0000 (21:30 +0100)]
sh(1): Allow non-printing characters in prompt strings
Introduce new prompt format characters:
- '\[' starts the sequence of non-printing chatacters
- '\]' ends the sequence of non-printing characters
Within these sequences, the following characters are now supported:
- '\a' emits ASCII BEL (0x07, 007) character
- '\e' emits ASCII ESC (0x1b, 033) character
- '\r' emits ASCII CR (0x0d, 015) character
- '\n' emits ASCII CRLF sequence
These can be used to embed ANSI sequences into prompt strings.
Example in .shrc:
PS1="\[\e[7m\]\u@\h\[\e[0m\]:\w \\$ "
This tries to maintain some degree of compatibility with GNU bash,
that uses GNU readline library (which behaves slightly different from
BSD editline): It has two "non-printing boundary" characters:
while BSD editline only has one (when using EL_PROMPT_ESC setting), so
for this purpose, ASCII \001 was chosen and both \[ and \] emits
this character.
And while here, enlarge PROMPTLEN from 128 to 192 characters.
Rick Macklem [Thu, 22 Dec 2022 17:35:15 +0000 (09:35 -0800)]
nfscl: Improve the console message for NFSERR_NOFILEHANDLE
Since a NFSERR_NOFILEHANDLE reply from an NFSv4 server
usually means that the file system is not exported on
the server, change the console log message to indicate
that.
Rick Macklem [Thu, 22 Dec 2022 17:10:27 +0000 (09:10 -0800)]
rpc.tlsservd: Check for a tls syscall failure.
Although the tls syscall to set up the upcall should
not normally fail, the daemon should check for such
a failure. This patch adds a check for that failure.
Andrew Turner [Mon, 19 Dec 2022 13:51:48 +0000 (13:51 +0000)]
Allow CPUs to be missing in the Arm PMU driver
To support running on some emulators we allow CPU start to fail if the
CPU we are starting is not present. The PMU driver will then check if
the CPU is present and fail to attach if any are missing.
To allow the PMU to be used in such an environment don't fail to attach
when a CPU is missing.
Andrew Turner [Mon, 19 Dec 2022 13:42:44 +0000 (13:42 +0000)]
Add support for the new Arm Generic UART _HID
Historically the ACPI _HID for both the Arm PL011 and Generic UARTs
was ARMH0011. In the Arm Base Boot Requirements 2.0 the Generic UART
_HID is changed to ARMHB000. Use this new value in the PL011 driver
where we support both UART types.
This has been observed in some recent EDK2 builds.
Andrew Turner [Thu, 22 Dec 2022 10:10:47 +0000 (10:10 +0000)]
Fix the SPDX-License-Identifier in DMC-620 files
The SPDX-License-Identifier was wrong in the Arm CoreLink DMC-620
driver files. It used the incorrect FreeBSD variant of the BSD-2-Clause
identifier. According to [1] all files should use BSD-2-Clause.
Andrew Turner [Thu, 22 Dec 2022 10:10:47 +0000 (10:10 +0000)]
Fix the SPDX-License-Identifier in CMN-600 files
The SPDX-License-Identifier was wrong in the Arm CoreLink CMN-600
driver files. It used the incorrect FreeBSD variant of the BSD-2-Clause
identifier. According to [1] all files should use BSD-2-Clause.
Andrew Turner [Thu, 22 Dec 2022 10:10:46 +0000 (10:10 +0000)]
Fix loading the hwpmc module when ACPI is enabled
In 0a9a4d2cd6092 a check for OPT_ACPI was added to the hwpmc Makefile
to fix loading the module in a kernel where ACPI has been disabled.
This broke loading the module when ACPI was enabled in the build as
OPT_ACPI isn't a Makefile macro so was always disabled.
Move this check to the C files where the DEV_ACPI macro does exist.
Reviewed by: gnn
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D37773
Jessica Clarke [Thu, 22 Dec 2022 10:23:10 +0000 (10:23 +0000)]
arm64: Don't include td_inhibitors when checking td_ast in do_ast
The td_ast member is an int so only 4 bytes, yet we were using an 8 byte
load and thus also got td_inhibitors in the upper bits. The code prior
to the commit that introduced td_ast did also do a bogus 8 byte load of
td_flags but masked the flags so arguably was correct, if dodgy. Now
that we're using the right width for the load we can also fold the
immediate offset back into the load; because td_ast is at an odd
multiple of 4 bytes from the start of struct thread the normal scaled
load couldn't be used with such an immediate offset when doing an 8 byte
load due to its limited immediate range, but we can use a scaled load
once more now that the offset is a multiple of the load width.
Rick Macklem [Wed, 21 Dec 2022 23:12:06 +0000 (15:12 -0800)]
rpc.tlsclntd: Check for a tls syscall failure.
Although the tls syscall to set up the upcall should
not normally fail, the daemon should check for such
a failure. This patch adds a check for that failure.
John Baldwin [Wed, 21 Dec 2022 18:47:08 +0000 (10:47 -0800)]
Disable -Wzero-length-bounds for the kernel for GCC 12.
The mlx5 driver and some other OFED bits use a somewhat dubious
pattern of:
struct foo {
uint64_t arg[0];
/* Real members of a struct */
};
The code then treats 'arg' as if it were really a kind of union
such that foo.arg[N] functions similarly to (uint64_t *)foo[N].
This uses of foo.arg[N] then trigger this warning.
No real bugs were found by this warning though, so just turn it off
globally.
John Baldwin [Wed, 21 Dec 2022 18:46:26 +0000 (10:46 -0800)]
Disable -Wdangling-pointer for the kernel for GCC 12.
Some of the warnings raised in the kernel seem to be outright bugs in
the compiler (e.g. the cases in ata_xpt.c and scsi_xpt.c). Other
cases are not fatal and it didn't seem to find any legitimate bugs in
the kernel.
John Baldwin [Wed, 21 Dec 2022 18:46:06 +0000 (10:46 -0800)]
Disable errors for -Wnonnull for the kernel for GCC 12.
The USB code and some other places raise false positives when a NULL
pointer is passed to an inlined function along with a separate length
and the compiler can't determine that the separate length of 0
prevents the use of the NULL pointer.
John Baldwin [Wed, 21 Dec 2022 18:45:45 +0000 (10:45 -0800)]
iee80211_hwmp: Don't dereference NULL ni in debug printf.
In this call to IEEE80211_NOTE, ni is always NULL due to the assignment
a few lines earlier at the start of the function. If debug traces are
enabled, then this will pass an invalid pointer as the 'mac' pointer to
ieee80211_note_mac. Use IEEE80211_DPRINTF which doesn't take a 'ni'
argument instead.
John Baldwin [Wed, 21 Dec 2022 18:45:26 +0000 (10:45 -0800)]
mrsas: Don't leak a stack pointer value in the softc.
mrsas_issue_blocked_cmd stores a pointer to an on-stack variable
in its softc so that the driver can call wakeup() on the correct
pointer. Once the loop around tsleep() has finished however, the
pointer is no longer needed and any further use would be invalid.
Clear sc->chan to NULL after the loop.
John Baldwin [Wed, 21 Dec 2022 18:33:18 +0000 (10:33 -0800)]
bhyve: Tidy vCPU pthread startup.
Set the thread affinity in fbsdrun_start_thread next to where the
thread name is set. This keeps all the pthread initialization
operations at the start of a thread in one place.
John Baldwin [Wed, 21 Dec 2022 18:32:24 +0000 (10:32 -0800)]
bhyve: Remove some no-op code for setting RIP.
fbsdrun_addcpu() read the current vCPU's RIP register from the kernel
via vm_get_register() to pass along through some layers to vm_loop()
which then set the register via vm_set_register(). However, this is
just always setting the value back to itself.
John Baldwin [Wed, 21 Dec 2022 18:31:16 +0000 (10:31 -0800)]
bhyve: Simplify setting vCPU capabilities.
- Enable VM_CAP_IPI_EXIT in fbsdrun_set_capabilities along with other
capabilities enabled on all vCPUs.
- Don't call fbsdrun_set_capabilities a second time on the BSP in
spinup_vcpu.
- To preserve previous behavior, don't unconditionally enable
unrestricted guest mode on the BSP (this unbreaks single-vCPU guests
on Nehalem systems, though supporting such setups is of dubious
value). Other places that enbale UG on the BSP are careful to check
the result of the operation and fail if it is not available.
- Don't set any capabilities in spinup_ap(). These are now all
redundant with earlier settings from spinup_vcpu().
- While here, axe a stale comment from fbsdrun_addcpu(). This
function is now always called from the main thread for all vCPUs.
Andrew Turner [Fri, 11 Nov 2022 08:55:59 +0000 (08:55 +0000)]
Add support for an array of hwresets
In some drivers we need to assert and deassert a group of hardware
resets in any order. To support this add a new hwreset_array that
manages all hwresets defined for a device.
Reviewed by: bz, manu, mmel
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37357
Zhenlei Huang [Wed, 21 Dec 2022 01:04:30 +0000 (09:04 +0800)]
geom_part: Fix potential integer overflow when checking size of the table
`hdr_entries` and `hdr_entsz` are both uint32_t as defined in UEFI spec.
Current spec does not have upper limit of the number of partition
entries and the size of partition entry, it is potential that malicious
or corrupted GPT header read from untrusted source contains large size of
entry number or size.
Justin Hibbits [Tue, 20 Dec 2022 20:08:34 +0000 (15:08 -0500)]
inet6: Fix LINT build
mli_delete_locked() is the only function that takes a const ifnet.
Since it's a static function there's no advantage to keeping it const.
Since `if_t` is not a const struct (currently) the compiler throws an
error passing the ifp around to ifnet functions.
John Baldwin [Tue, 20 Dec 2022 19:38:28 +0000 (11:38 -0800)]
ktls_tests: Ignore errors from close for receive error tests.
For tests that send invalid data to a TLS socket to trigger read
errors the kernel may end up dropping the connection before close is
called at the conclusion of the test resulting in spurious ECONNRESET
errors from close. Ignore any errors from close for these tests.
John Baldwin [Tue, 20 Dec 2022 19:38:07 +0000 (11:38 -0800)]
ktls_tests: Ignore spurious errors from shutdown(2).
For some of the "bad size" tests, the remote end can notice the error
and drop the connection before the test program returns from write to
call shutdown. In that case, shutdown fails with ENOTCONN. Permit
these ENOTCONN errors without failing the test.
Justin Hibbits [Fri, 9 Dec 2022 20:54:51 +0000 (15:54 -0500)]
DrvAPI: Extend driver KPI with more accessors
Summary:
Add the following accessors to hide some more netstack details:
* if_get/setcapabilities2 and *bits analogue
* if_setdname
* if_getxname
* if_transmit - wrapper for call to ifp->if_transmit()
- This required changing the existing if_transmit to
if_transmit_default, since that's its purpose.
* if_getalloctype
* if_getindex
* if_foreach_addr_type - Like if_foreach_lladdr() but for any address
family type. Used by some drivers to iterate over all AF_INET
addresses.
* if_init() - wrapper for ifp->if_init() call
* if_setinputfn
* if_setsndtagallocfn
* if_togglehwassist
ufs/ffs: detect endian mismatch between machine and filesystem
Mount on a LE machine a filesystem formatted for BE is not supported
currently. This adds a check for the superblock magic number using
swapped bytes to guess and warn the user that it may be a valid
superblock but endian is incompatible.
Ruslan Bukin [Mon, 19 Dec 2022 20:16:18 +0000 (20:16 +0000)]
Add support for ARM System Control and Management Interface (SCMI) v3.1.
The SCMI specification describes a set of standard interfaces for power,
performance and system management.
SCMI is extensible and provides interfaces to access functions which are
often implemented in firmwares in the System Control Processor (SCP).
This implements Shared Memory-based transfer, which is one of the ways on
how messages are exchanged between agents and the platform.
This includes a driver for ARM Message Handling Unit (MHU) Doorbell, which
is a mechanism that the caller can use to alert the callee of the presence
of a message.
The support implements clock management interface. For instance this allows
us to control HDMI pixel clock on ARM Morello Board.
Doug Rabson [Sun, 4 Dec 2022 15:53:07 +0000 (15:53 +0000)]
Allow realpath to work for file mounts
For file mounts, the directory vnode is not available from namei and this
prevents the use of vn_fullpath_hardlink. In this case, we can use the
vnode which was covered by the file mount with vn_fullpath.
This also disallows file mounts over files with link counts greater than
one to ensure a deterministic path to the mount point.
Doug Rabson [Wed, 23 Nov 2022 14:51:13 +0000 (14:51 +0000)]
Add support for mounting single files in nullfs
The main use-case for this is to support mounting config files and
secrets into OCI containers. My current workaround copies the files into
the container which is messy and risks secrets leaking into container
images if the cleanup fails.
This adds a VFCF flag to indicate whether the filesystem supports file
mounts and allows fspath to be either a directory or a file if the flag
is set.
Test Plan:
$ sudo mkdir -p /mnt
$ sudo touch /mnt/foo
$ sudo mount -t nullfs /COPYRIGHT /mnt/foo
Doug Rabson [Mon, 7 Nov 2022 16:56:09 +0000 (16:56 +0000)]
Add support for mounting single files in nullfs
My main use-case for this is to support mounting config files and secrets
into OCI containers. My current workaround copies the files into the
container which is messy and risks secrets leaking into container images
if the cleanup fails.
Jose Luis Duran [Mon, 19 Dec 2022 04:54:52 +0000 (05:54 +0100)]
xlocale(3): Link man pages
- provide various missing MLINKS for library functions
- update various SEE ALSO section to include the
new linked manual pages
- add various definitions of new functions like isideogram_l(3)
- document COMPATIBILITY for some functions
- bump man page dates
Rick Macklem [Sun, 18 Dec 2022 20:40:48 +0000 (12:40 -0800)]
krpc: Allow mountd/nfsd to optionally run in a jail
This patch modifies the kernel RPC so that it will allow
mountd/nfsd to run inside of a vnet jail. Running mountd/nfsd
inside a vnet jail will be enabled via a new kernel build
option called VNET_NFSD, which will be implemented in future
commits.
Although I suspect cr_prison can be set from the credentials
of the current thread unconditionally, I #ifdef'd the code
VNET_NFSD and only did this for the jailed case mainly to
document that it is only needed for use in a jail.
The TLS support code has not yet been modified to work in
a jail. That is planned as future development after the
basic VNET_NFSD support is in the kernel.
This patch should not result in any semantics change until
VNET_NFSD is implemented and used in a kernel configuration.
This can be eventually improved or simplified or fixed if necessary.
Following devices work with proper drivers and with the necessary clocks:
Native networking via eqos driver
USB3 and USB2
PCIe support is working but a bit picky about what hardware it supports (but so is Linux)
SD & (e)MMC
With the EDK2 loader video also works
Supported hardwares are Quartz64, NanoPI R5S and Firefly Station P2, more to come as DTS files gets done.
Rick Macklem [Sat, 17 Dec 2022 21:54:33 +0000 (13:54 -0800)]
jail.8: Update the man page for allow.nfsd
Commit bba7a2e89602 added "allow.nfsd" to optionally allow
mountd/nfsd to be run inside a vnet prison when the kernel
is built with "options VNET_NFSD".
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