Mike Karels [Wed, 2 Nov 2022 15:59:09 +0000 (10:59 -0500)]
fetch: support EAI_ADDRFAMILY error, correct two error messages
With the change to return EAI_ADDRFAMILY from getaddrinfo(), fetch
would print "Unknown resolver error" for that error. Add that error
and its string to libfetch's table, using an #ifdef just in case.
Correct error strings for EAI_NODATA (although it is currently unused)
and EAI_NONAME. Should maybe rework the code to use gai_strerror(3),
but that doesn't map directly, and the current strings are shortened.
Reviewed in https://reviews.freebsd.org/D37139 with related changes.
Mike Karels [Wed, 2 Nov 2022 15:57:59 +0000 (10:57 -0500)]
getaddrinfo: distinguish missing addrs from unresolvable names
Rework getaddrinfo(3) to return different error values for unresolvable
names (same as before, EAI_NONAME) and those without a requested addr
(EAI_ADDRFAMILY) when using DNS. This is implemented via an added
error in the nsswitch layer, NS_ADDRFAMILY, which is used only by
getaddrinfo(). The error is passed through nsdispatch(3), but that
routine has no changes to handle this error. The error originates in
the getaddrinfo DNS layer called via nsdispatch(), and is processed
by the search layer that calls nsdispatch().
While here, add a little style to returns near those that were
modified.
Reviewed in https://reviews.freebsd.org/D37139 with related changes.
gai_strerror.c still has messages for EAI_ADDRFAMILY and EAI_NODATA,
but not the man page. Re-add to the man page, and update comments
in the source. Document the errors that are not in RFC 3493 or
POSIX.
Reviewed in https://reviews.freebsd.org/D37139 with related changes.
Mike Karels [Wed, 2 Nov 2022 15:43:04 +0000 (10:43 -0500)]
netdb.h: re-enable EAI_ADDRFAMILY, EAI_NODATA
EAI_ADDRFAMILY and EAI_NODATA are not in RFC 3493, but are available
and used in many other systems. It is desirable to have at least one
of them in order to distinguish between names that do not resolve and
those that do not have the requested address type. A change to
getaddrinfo() will use EAI_ADDRFAMILY. Both were "#if 0"; re-enable,
conditioned on __BSD_VISIBLE, and update comments. Also add comments
and __BSD_VISIBLE conditional for the last three EAI errors, which
are not in the RFC or POSIX. Note, all of these are available in
NetBSD and OpenBSD, and EAI_ADDRFAMILY and EAI_NODATA are available
in Linux (glibc).
Reviewed in https://reviews.freebsd.org/D37139 with related changes.
Andrew Fengler [Wed, 12 May 2021 01:59:10 +0000 (01:59 +0000)]
Add support for adding default routes for other FIBs
Make rc.d/routing read defaultrouter_fibN and ipv6_defaultrouter_fibN, and
set it as the default gateway for FIB N, where N is from 1 to (net.fibs - 1)
This allows adding gateways for multiple FIBs in the same format as the main
gateway. (FIB 0)
Rick Macklem [Thu, 17 Nov 2022 01:37:22 +0000 (17:37 -0800)]
vfs_vnops.c: Fix blksize for ZFS
Since ZFS reports _PC_MIN_HOLE_SIZE as 512 (although it
appears that an unwritten region must be at least f_iosize
to remain unallocated), vn_generic_copy_file_range()
uses 4096 for the copy blksize for ZFS, reulting in slow copies.
For most other file systems, _PC_MIN_HOLE_SIZE and f_iosize
are the same value, so this patch modifies the code to
use f_iosize for most cases. It also documents in comments
why the blksize is being set a certain way, so that the code
does not appear to be doing "magic math".
Cy Schubert [Fri, 25 Nov 2022 23:29:14 +0000 (15:29 -0800)]
heimdal: Fix uninitialized pointer dereference
krb5_ret_preincipal() returns a non-zero return code when
a garbage principal is passed to it. Unfortunately ret_principal_ent()
does not check the return code, with garbage pointing to what would
have been the principal. This results in a segfault when free() is
called.
PR: 267944, 267972
Reported by: Robert Morris <rtm@lcs.mit.edu>
Building the DSDT table by basl will allow it to be loaded by qemu's
ACPI table loader.
Building the DSDT is complex and basl doesn't support it yet. For that
reason, it's still compiled by iasl. It's just a bit restructured.
Upcoming commits will restructure the builds of all other ACPI tables in
a similar way. So, this commit is done for consistency reasons. We're
starting with DSDT because it doesn't point to any other tables and it's
the last one in our current build list.
Corvin Köhne [Fri, 4 Nov 2022 11:30:37 +0000 (12:30 +0100)]
bhyve: use basl to load ACPI tables
Load the blobs compiled by iasl into a basl_table. The basl_table is a
temporary buffer which copies the ACPI tables into guest memory for us.
This allows us in the future to pass the blobs over the qemu fwcfg
interface to the guest.
Tom Jones [Thu, 17 Nov 2022 10:31:38 +0000 (10:31 +0000)]
ping: Fix handling of IP packet sizes
Ping reads raw IP packets to parse ICMP responses. When reading the
IP Header Len (IHL) ping was was taking the value from the provided
packet without any validation. This could lead to remotely triggerable
stack corruption.
Validate the IHL against expected and recieved data sizes when reading
from the received packet and when reading any quoted packets from within
the ICMP response.
Approved by: so
Reviewed by: markj, asomers
Security: FreeBSD-SA-22:15.ping
Security: CVE-2022-23093
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
X-NetApp-PR: #77
Differential Revision: https://reviews.freebsd.org/D37195
The use of volatile appears to be inherited from the kernel driver's
definitions of the same structures. It makes some sense, since USB TRBs
and related structures live in guest memory, but bhyve device models
generally don't volatile-qualify accesses to guest memory and I can't
see how they are required for correctness here. Moreover, XHCI_GADDR
does not return volatile pointers so we're already being inconsistent.
Just drop the qualifiers to address the warning.
Mark Johnston [Fri, 11 Nov 2022 15:02:42 +0000 (10:02 -0500)]
bhyve: Cast away const when fetching a config nvlist
Silence a warning from the compiler about "const" being discarded. The
warning is correct: nvlist values are supposed to be immutable.
However, fixing this properly will require some contortions on behalf of
consumers who look up a subtree of the config and modify it. Per a
discussion on freebsd-virtualization@, the solution will probably be to
outright replace the use of nvlists for VM configuration, but until that
happens let's document the problem and silence the warning.
Mark Johnston [Fri, 11 Nov 2022 15:02:10 +0000 (10:02 -0500)]
bhyve: Drop volatile qualifiers from virtio rings
The qualifiers are there presumably because these rings are mapped into
the guest, but they do not appear to be required for correctness, and
bhyve generally doesn't qualify accesses to guest memory this way.
Moreover, the qualifiers are discarded by snapshot code, causing clang
to emit warnings. Just stop using volatile here.
Some ACPI tables like XSDT contain pointers to other ACPI tables. When
an ACPI table is loaded by qemu's loader, the address in the guest
memory is unknown. For that reason, the qemu loader supports patching
those pointers. Basl keeps track of all pointers and causes the qemu
loader to patch all pointers.
The qemu ACPI table loader is unsupport yet. However, in a future commit
bhyve will use dynamic ACPI table offsets based on the size and
alignment requirements of each ACPI table. Therefore, tracking ACPI
table pointer is required too.
The qemu ACPI table loader patches the ACPI tables. After patching them,
checksums aren't correct any more. It has to calculate a new checksum
for the ACPI table. For that reason, basl has to keep track of checksums
and has to cause the qemu loader to create new checksums for the tables.
The qemu ACPI table loader isn't supported yet. However, the address of
all tables is unknown as long as bhyve hasn't finished ACPI table
creation. So, the checksum of tables which include pointer to other
tables are unknown too. This requires tracking of checksums too.
ACPI tables have different layouts. So, there's no common position for
the length field. When tables are build by basl, the length is unknown
at the beginning. It has to be set after building the table.
Corvin Köhne [Fri, 4 Nov 2022 13:30:53 +0000 (14:30 +0100)]
bhyve: add basl support for generic addresses
In upcoming commits, bhyve will build some ACPI tables by it's own.
Therefore, it should be capable of appending GENERIC_ADDRESS structs to
ACPI tables.
Corvin Köhne [Fri, 4 Nov 2022 11:24:49 +0000 (12:24 +0100)]
bhyve: add basic basl implementation
Basl is the bhyve ASL compiler. At the moment, it's just a small wrapper
to call iasl, the Intel ASL compiler. As bhyve will gain support for
qemu's ACPI table loader in the future, it has to create ACPI tables on
it's own. Therefore, it makes sense to create a new file which keeps the
code for basl.
This first implementation of basl supports creating an ACPI table by
appending raw bytes to it. It's also capable of loading all tables into
guest memory.
Corvin Köhne [Thu, 17 Nov 2022 06:51:51 +0000 (07:51 +0100)]
vmm: remove unneccessary rendezvous assertion
When a vcpu sees that a rendezvous is in progress, it exits and tries to
handle the rendezvous. The vcpu doesn't check if it's part of the
rendezvous or not. If the vcpu isn't part of the rendezvous, the
rendezvous could be done before it reaches the assertion. This will
cause a panic.
The assertion isn't needed at all because vm_handle_rendezvous properly
handles a spurious rendezvous. So, we can just remove it.
linuxkpi: Resolve duplicate global symbol name to fix LINT kernel build.
seq_printf() is defined in both spl_procfs_list.c and linux_seq_file.c .
Fix this by renaming the LinuxKPI ones and use macros to invoke the
correct function.
This diff extends LinuxKPI to support simple attribute files in debugfs.
These simple attributes are an essential component for compiling drm-kmod
with CONFIG_DEBUG_FS enabled.
This will allow for easier graphics driver debugging using
Intel's igt-gpu-tools.
Bjoern A. Zeeb [Tue, 22 Nov 2022 17:29:41 +0000 (17:29 +0000)]
iwlwifi: fix hang on unloading driver
f808c43ad9234670770601ba32a7426b00bbf528 introduced a FreeBSD specific
behaviour to wait for firmware load completion before returning from
loading the driver. This does no longer allow iwl_drv_stop to detect
that startup has completed and it will wait indefinitely for a
completion event that will not happen.
We could change the complete() call to a complete_all() but to avoid
confusion, future side effects, and for simplicity daisy-chain two
complete events in FreeBSD.
PR: 267869
Reported by: Peter Much (pmc citylink.dinoex.sub.org)
Tested by: Peter Much (pmc citylink.dinoex.sub.org)
Sponsored by: The FreeBSD Foundation
Bjoern A. Zeeb [Mon, 31 Oct 2022 14:33:58 +0000 (14:33 +0000)]
LinuxKPI: implement cpumask_of()
Add a static set of cpumasks for all (possible) cpus with only the one
indexed cpu enabled in each set.
This is needed for cpumask_of(_cpuid) which returns a cpumask (cpuset)
with only cpu _cpuid enabled and is used by one wireless driver at least.
Bjoern A. Zeeb [Mon, 7 Nov 2022 12:39:46 +0000 (12:39 +0000)]
LinuxKPI: 802.11: enable WME support
Most of the WME code has been there disabled for months. One of the
reasons was that it lead to crashes early on. It is now understood
that the crashes are independent event and we can enable WME.
Update the code and deal with the calls from net80211 and adjust the
updates to when mac80211 drivers expect them, coherently put it under
LKPI_80211_WME and enable the define locally.
Bjoern A. Zeeb [Sun, 30 Oct 2022 17:05:52 +0000 (17:05 +0000)]
LinuxKPI: add linux/leds.h
This is just a dummy enum and struct in order to make drivers compile
more happily as some parts are simply not hidden behind #ifdefs and
this avoids a longer-term maintenance problem.
Bjoern A. Zeeb [Mon, 31 Oct 2022 22:17:00 +0000 (22:17 +0000)]
LinuxKPI: string.h implement memcpy_and_pad()
Add a memcpy variant which takes length of source and destination
buffers and a padding character in case there is free space in the
destination. This is used by a wireless driver.
Bjoern A. Zeeb [Mon, 31 Oct 2022 23:53:26 +0000 (23:53 +0000)]
LinuxKPI: 802.11: pass internal variable to lkpi_80211_mo_sta_state()
With mac80211 operations (MO) tracing on we have seen some ill-ordered
executions of MO functions. In order to limit visibility of the mac80211
sta, pass the internal version into lkpi_80211_mo_sta_state() and only
there convert to the argument needed. This mostly eases tracing and
debugging.
Bjoern A. Zeeb [Sun, 23 Oct 2022 21:48:22 +0000 (21:48 +0000)]
LinuxKPI: 802.11: add MO tracing
Add a macro to each implemented mac80211 operation. This currently
turns into a printf if LINUXKPI_80211_DEBUG is defined but in the
future could become a different probe as well.
This is helpful for quick analysis and boot-time problem debugging
when DTrace and other frameworks may be harder to use.
Bjoern A. Zeeb [Sat, 22 Oct 2022 17:40:17 +0000 (17:40 +0000)]
iwlwifi: prepare to support debugfs
Import two files left out initially from the driver needed for debugfs
support [1]. Adjust the driver further to make it compile on FreeBSD.
This is currently turned off and needs more LinuxKPI/lindebugfs work.
Being in the tree will allow us to collaboratively work on it and
then we can enable it for good.
Justin Hibbits [Fri, 13 May 2022 22:18:25 +0000 (17:18 -0500)]
libm: Add feenableexcept and fedisableexcept to library on powerpc
Summary:
These functions are missing from the library itself, and exist solely in
the header. This breaks a few ports that expect libm to have the
symbols in the library itself.
Justin Hibbits [Wed, 5 May 2021 14:20:56 +0000 (09:20 -0500)]
msun fixes for SPE
Summary:
Fix FPU exception management for powerpcspe. Bits are in a different place from
the standard FPSCR, so we need to handle the shifting differences. Also,
there's no concept of a "software exception" raise, so we need to do exceptional
math to trigger the exception from software.
Alan Somers [Wed, 12 Oct 2022 22:44:09 +0000 (16:44 -0600)]
ctld: if adding a target fails, retry it on the next reload
If the admin creates more CTL ports than kern.cam.ctl.max_ports, then
adding some will fail. If he then removes some ports and does
"service ctld reload", he would expect that the new ports would get
added in the newly-freed port space. But they don't, because ctld
assigned them port numbers during their first creation attempts.
Fix this bug by removing newly created ports from ctld's internal list
if the kernel rejects them for any reason. That way, a subsequent
config reload will attempt to add them again, possibly with new port
numbers.
Mark Johnston [Sat, 22 Oct 2022 17:35:40 +0000 (13:35 -0400)]
bhyve: Fix some warnings in the ps2 emulation code
- Include headers containing prototypes for exported functions.
- Initialize all fields of the extended translation table.
- Qualify an unexported translation table as static.
- Fix error handling for a read(2).
- Fix some style bugs.
Append Keyboard Layout specified option for using VNC.
Part two: Append bhyve -K option for specified keyboard layout
with layout setting files every languages.
Since the cmd option '-k' was used in the meantime
it was changed to '-K'
Wanpeng Qian [Mon, 14 Nov 2022 12:59:11 +0000 (13:59 +0100)]
nvmecontrol: Fix condition when print number of Firmware Slots and Firmware Slot1 Readonly.
The Number of Firmware Slots should never be zero. So, a Firmware Slot 1
should always exist. For that reason, always print the Number of
Firmware Slots and the Firmware Slot 1 Read-Only value.
Wanpeng Qian [Mon, 14 Nov 2022 13:02:44 +0000 (14:02 +0100)]
bhyve: abort and return FEATURE_NOT_SAVEABLE while set feature with a save flag for NVMe controller.
Currently bhyve's NVMe controller cannot save feature values cross
reboot. It should return a FEATURE_NOT_SAVEABLE error when the command
specifies a save flag.
If the Feature Identifier specified in the Set Features command is not
saveable by the controller and the controller receives a Set Features
command with the Save bit set to one, then the command shall be aborted
with a status of Feature Identifier Not Saveable.
Wanpeng Qian [Mon, 14 Nov 2022 13:06:34 +0000 (14:06 +0100)]
bhyve: return FEATURE_NOT_CHANGEABLE for unimplemented feature of NVMe controller
Set Feature is a feature specified function. Currently only some
features have the set procedure. For features that are not handled by
the controller, we should return a FEATURE_NOT_CHANGEABLE error message.
Wanpeng Qian [Mon, 14 Nov 2022 13:08:52 +0000 (14:08 +0100)]
bhyve: nvme controller obey async event setting when reporting critical temperature
Async event report is controlled by async event configuration feature
setting. When reporting a critical temperature warning, check the async
event configuration.
dhclient(8): Verify lease-, renewal- and rebinding-time option sizes.
Else out-of-bound reads and undefined behaviour may happen.
The current code only checked for the presence of the first of four bytes.
Make sure the fields in question have the minium size required.
Zhenlei Huang [Tue, 18 Oct 2022 15:03:02 +0000 (11:03 -0400)]
geom_part: Check number of GPT entries and size of GPT entry
Current specification does not have upper limit of the number of
partition entries and the size of partition entry. In 799eac8c3df597179bbb3b078362f3ff03993a1a Andrey V. Elsukov introduced a
limit maximum number of GPT entries to 4k, but that is for write routine
(gpart create) only. When attaching disks that have large number of GPT
entries exceeding the limit, or disks with large size of partition
entry, it is still possible to exhaust kernel memory.
1. Reuse the limit of the maximum number of partition entries.
2. Limit the maximum size of GPT entry to 1k.
In current specification (2.10) the size of GPT entry is 128 *
2^n while n >= 0, and the size - 128 is reserved. 1k should be
sufficient enough for foreseen future.
Mark Johnston [Mon, 14 Nov 2022 20:08:45 +0000 (15:08 -0500)]
bhyve: Simplify control flow in the xhci device model
We only need to call pci_xhci_xfer_complete() when handling a transfer
to the control endpoint, so move that code into the epid == 1 block and
eliminate a goto. Also remove an unneeded reinitialization of
setup_trb.
Mark Johnston [Mon, 7 Nov 2022 21:07:26 +0000 (16:07 -0500)]
ksan: Build sanitizer runtimes without stack-smashing protection
On arm64 with per-thread stack canaries enabled (the PERTHREAD_SSP
option), the compiler may load curthread->td_md.md_canary in function
prologues. This is not safe in data_abort(); see commit 2c10be9e06d4.
Thus, sanitizer runtimes must also avoid accessing the current thread's
canary.
Since SSP has limited utility in sanitizer runtimes, simply disable it
unconditionally to avoid unpleasant surprises in the future.
MFC after: 2 weeks
Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Doug Moore [Sat, 29 Oct 2022 05:50:44 +0000 (00:50 -0500)]
iommu_gas: start space search from 1st free space
Maintain a pointer to an element in the domain map that is left of any
sufficiently large free gap in the tree and start the search for free
space there, rather than at the root of the tree. On find_space, move
that pointer to the leftmost leaf in the subtree of nodes with
free_down greater than or equal to the minimum allocation size before
starting the search for space from that pointer. On removal of a node
with address less than that pointer, update that pointer to point to
the predecessor or successor of the removed node.
In experiments with netperf streaming, this reduces by about 40% the
number of map entries examined in first-fit allocation.
Kirk McKusick [Sat, 12 Nov 2022 23:36:07 +0000 (15:36 -0800)]
Fix for tunefs(8) unable to add a UFS/FFS soft update journal.
The reported bug is UFS: bad file descriptor: soft update journaling
can not be enabled on some FreeBSD-provided disk images – failed
to write updated cg.
The UFS library (libufs(3)) failed to reopen its disk descriptor
when first attempting to update a cylinder group. The error only
occurred when trying to add journaling to a filesystem whose first
cylinder group was too full to hold the journal.
PR: 259090
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Ed Maste [Thu, 17 Nov 2022 14:15:20 +0000 (09:15 -0500)]
pkgbase: report type for duplicated METALOG entries
Duplicate METALOG file entries are more of a concern than duplicate
directories. The metalog check tool previously did not include the
entry type in the warnings, making it hard to find the ones of concern.
Ed Maste [Wed, 16 Nov 2022 19:53:42 +0000 (14:53 -0500)]
pkgbase: examine METALOG files relative to stage root directory
Previously we stripped the '.' from the beginning of each METALOG entry
to determine the path to stat. This meant that we examined files on the
build host, not the staged files.
Instead, strip off the last part of the specified METALOG pathname to
find the stage root directory, and stat files relative to that.
Reviewed by: bapt
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37412
Ed Maste [Mon, 24 Oct 2022 18:06:41 +0000 (14:06 -0400)]
build: Use `rm -fv` for BATCH_DELETE_OLD_FILES
It's possible to have files with odd permissions in the tmproot (or
sysroot), causing rm to prompt for each one during e.g. buildworld.
Add -f to forcibly delete these.
Reviewed by: brooks
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37111
Chuck Tuffli [Sun, 14 Aug 2022 14:45:21 +0000 (07:45 -0700)]
bhyve nvme: Check return value of mapped memory
Fuzzing of bhyve using hyfuzz discovered a way to cause a segmentation
fault in the NVMe emulation. If a guest specifies a physical address in
either the PRP1 or PRP2 field of a command that cannot be mapped from
guest to host, the function paddr_guest2host() returns a NULL pointer.
The NVMe emulation did not check for this error case, which allowed for
the segmentation fault to occur.
Fix is to check for a return value of NULL and indicate an error back to
the guest (Data Transfer error). While in the area, slightly refactor
the write/read blockif function to use a common error exit path.
Chuck Tuffli [Tue, 16 Aug 2022 16:15:53 +0000 (09:15 -0700)]
bhyve nvme: Support minimal Controller list
Controllers must support the Identify Controller list if they support
Namespace Management. But the UNH NVMe tests use this command regardless
of whether the device under test supports Namespace Management.
This implementation returns an empty Controller list (i.e., Number of
Identifiers is zero).
Chuck Tuffli [Tue, 16 Aug 2022 16:14:43 +0000 (09:14 -0700)]
bhyve nvme: Fix reported SANICAP value
The NVMe specification only allows Controllers compliant with the
revision 1.3 and earlier specification to report a value of 0x0 in the
No-Deallocate Modifies Media After Sanitize (NODMMAS) field.
For our revision 1.4 Controller, report that media is not modified after
Sanitize as the implementation does not implement Sanitize.
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