After the migration to libpfctl for rule retrieval we accidentally lost
support for clearing the rules counters.
Introduce a get_clear variant of pfctl_get_rule() which allows rules
counters to be cleared.
MFC after: 4 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29727
MAP-E (RFC 7597) requires special care for selecting source ports
in NAT operation on the Customer Edge because a part of bits of the port
numbers are used by the Border Relay to distinguish another side of the
IPv4-over-IPv6 tunnel.
PR: 254577
Reviewed by: kp
Differential Revision: https://reviews.freebsd.org/D29468
The manual page currently doesn't show an example how to print
the routing table, so add one and .Xr netstat while here.
PR: 231579
Reported by: Pekka Järvinen <pekka dot jarvinen at gmail dot com>
Reviewed by: debdrup
MFC after: 5 days
Differential Revision: https://reviews.freebsd.org/D29702
Introduce pfctl_pool to be able to extend the pool part of the pf rule
without breaking the ABI.
Reviewed by: kp
MFC after: 4 weeks
Differential Revision: https://reviews.freebsd.org/D29721
struct pf_rule had a few counter_u64_t counters. Those couldn't be
usefully comminicated with userspace, so the fields were doubled up in
uint64_t u_* versions.
Now that we use struct pfctl_rule (i.e. a fully userspace version) we
can safely change the structure and remove this wart.
Reviewed by: glebius
MFC after: 4 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29645
Stop using the kernel's struct pf_rule, switch to libpfctl's pfctl_rule.
Now that we use nvlists to communicate with the kernel these structures
can be fully decoupled.
Reviewed by: glebius
MFC after: 4 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29644
These functions no longer exist in the kernel, so there's no reason to
keep the prototypes in a kernel header. Move them to pfctl where they're
actually implemented.
Reviewed by: glebius
MFC after: 4 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29643
Create wrapper functions to handle the parsing of the nvlist and move
that code into pfctl_ioctl.c.
At some point this should be moved into a libpfctl.
MFC after: 4 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29560
Start using the new nvlist based ioctl to add rules.
MFC after: 4 weeks
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D29558
Several large data structures are allocated by fsck_ffs to track
resource usage. Most but not all were deallocated at the end of
checking each filesystem. This commit consolidates the freeing
of all data structures in one place and adds one that had previously
been missing.
It is important to clean up these data structures as they can be
large. If the previous allocations have not been freed, fsck_ffs
can run out of address space when many large filesystems are being
checked. An alternative would be to fork a new instance of fsck_ffs
for each filesystem to be checked, but we choose to free the small
set of large structures to save the fork overhead.
Reported by: Chuck Silvers
Tested by: Chuck Silvers
MFC after: 7 days
Sponsored by: Netflix
Vinum is a Logical Volume Manager that was introduced in FreeBSD 3.0,
and for FreeBSD 5 was ported to geom(4) as gvinum. gvinum has had no
specific development at least as far back as 2010, and has a number of
known bugs which are unlikely to be resolved.
Add a deprecation notice to raise awareness but state that vinum "may
not be" available in FreeBSD 14. Either it will be removed and the
notice will be updated to "is not" available, or someone will step up
to fix issues and maintain it and we will remove the notice.
Reviewed by: imp (earlier version)
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D29424
This fixes a long-standing but very obscure bug in fsck_ffs when
it is run with the -R (rerun after unexpected errors). It only
occurs if fsck_ffs finds duplicate blocks and they are all contained
in inodes that reside in the first block of inodes (typically among
the first 128 inodes).
Rather than use the usual ginode() interface to walk through the
inodes in pass1, there is a special optimized `getnextinode()'
routine for walking through all the inodes. It has its own private
buffer for reading the inode blocks. If pass 1 finds duplicate
blocks it runs pass 1b to find all the inodes that contain these
duplicate blocks. Pass 1b also uses the `getnextinode()' to search
for the inodes with duplicate blocks. Pass 1b stops when all the
duplicate blocks have been found. If all the duplicate blocks are
found in the first block of inodes, then the getnextinode cache
holds this block of bad inodes. The subsequent cleanup of the inodes
in passes 2-5 is done using ginode() which uses the regular fsck_ffs
cache.
When fsck_ffs restarts, pass1() calls setinodebuf() to point at the
first block of inodes. When it calls getnextinode() to get inode
2, getnextino() sees that its private cache already has the first
set of inodes loaded and starts using them. They are of course the
trashed inodes left over from the previous run of pass1b().
The fix is to always invalidate the getnextinode cache when calling
setinodebuf().
Reported by: Chuck Silvers
Tested by: Chuck Silvers
MFC after: 3 days
Sponsored by: Netflix
Pass 1b of fsck_ffs runs only when Pass 1 has found duplicate blocks.
When starting up, Pass 1b failed to properly skip over the two unused
inodes at the beginning of the filesystem resulting in the above error
message when it tried to read the filesystem root inode.
Reported by: Chuck Silvers
Tested by: Chuck Silvers
MFC after: 3 days
Sponsored by: Netflix
Beauty correction for verbose mode or in case we print multiple key
information to not continue with the next options directly after
as we did so far, e.g.:
AES-CCM 2:128-bit
AES-CCM 3:128-bit powersavemode ...
Sponsored-by: The FreeBSD Foundation
MFC-after: 2 weeks
Reviewed-by: adrian
Differential Revision: https://reviews.freebsd.org/D29393
In "heads" output just improve the header to describe all of the columns.
In "hooks" print filter name and hook name delimited with colon, so that
it matches "heads" output and also can be copy-and-pasted straight into
the command line for future "link" command.
After length decisions, we've decided that the if_wg(4) driver and
related work is not yet ready to live in the tree. This driver has
larger security implications than many, and thus will be held to
more scrutiny than other drivers.
Please also see the related message sent to the freebsd-hackers@
and freebsd-arch@ lists by Kyle Evans <kevans@FreeBSD.org> on
2021/03/16, with the subject line "Removing WireGuard Support From Base"
for additional context.
This is the culmination of about a week of work from three developers to
fix a number of functional and security issues. This patch consists of
work done by the following folks:
- Jason A. Donenfeld <Jason@zx2c4.com>
- Matt Dunwoodie <ncon@noconroy.net>
- Kyle Evans <kevans@FreeBSD.org>
Notable changes include:
- Packets are now correctly staged for processing once the handshake has
completed, resulting in less packet loss in the interim.
- Various race conditions have been resolved, particularly w.r.t. socket
and packet lifetime (panics)
- Various tests have been added to assure correct functionality and
tooling conformance
- Many security issues have been addressed
- if_wg now maintains jail-friendly semantics: sockets are created in
the interface's home vnet so that it can act as the sole network
connection for a jail
- if_wg no longer fails to remove peer allowed-ips of 0.0.0.0/0
- if_wg now exports via ioctl a format that is future proof and
complete. It is additionally supported by the upstream
wireguard-tools (which we plan to merge in to base soon)
- if_wg now conforms to the WireGuard protocol and is more closely
aligned with security auditing guidelines
Note that the driver has been rebased away from using iflib. iflib
poses a number of challenges for a cloned device trying to operate in a
vnet that are non-trivial to solve and adds complexity to the
implementation for little gain.
The crypto implementation that was previously added to the tree was a
super complex integration of what previously appeared in an old out of
tree Linux module, which has been reduced to crypto.c containing simple
boring reference implementations. This is part of a near-to-mid term
goal to work with FreeBSD kernel crypto folks and take advantage of or
improve accelerated crypto already offered elsewhere.
There's additional test suite effort underway out-of-tree taking
advantage of the aforementioned jail-friendly semantics to test a number
of real-world topologies, based on netns.sh.
Also note that this is still a work in progress; work going further will
be much smaller in nature.
MFC after: 1 month (maybe)
The kernel-side already accepted a persistent-keepalive-interval, so
just add a verb to ifconfig(8) for it and start exporting it so that
ifconfig(8) can view it.
PR: 253790
MFC after: 3 days
Discussed with: decke
The way that wireguard is designed does not actually require all peers
to have endpoints. In an architecture that might mimic a traditional
VPN server <-> client, the wg interface on a server would have a number
of peers without set endpoints -- the expectation is that the "clients"
will connect to the "server" peer, which will authenticate the
connection as a known peer and learn the endpoint from there.
MFC after: 3 days
Discussed with: decke, grehan (independently)
When the netdump host name fails to resolve, don't print errno, since
it's irrelevant. We might as well use a different exit status, too.
Sponsored by: Dell EMC Isilon
growfs supports growing mounted filesystems (writes are temporarily
suspended while the grow happens). Drop the check for fs_clean == 0
to restore this case. Leave fs_flags check for FS_UNCLEAN or
FS_NEEDSFSCK which represent the state of the filesystem when it was
mounted, and fsck should be run first if they are set.
PR: 253754
Reviewed by: mckusick
MFC after: 3 days
Fixes: 6eb925f845 ("Filesystem utilities that modify the...")
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D29021
This is a nop in practice, because it cannot be proven that this
particular bzero() is not significant. Make it explicit anyways, rather
than relying on an implementation detail of how the password is
collected.
Discussed with: Andrew Gierth <andrew tao146 riddles org uk>
This should eventually replace the socket passed to the various
handlers. In the meantime, making it global avoids repeatedly opening
and closing handles.
Reported by: kp
Reviewed by: kp (earlier version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28990
Also trimmed an unused block of code that never prints out LAGG_PROTOS.
Reviewed by: kp (earlier version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28961
A trivial change now that ifconfig is already using libifconfig.
Reviewed by: kp (earlier version)
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D28955
After 3e404b8c53, cam_getccb(3) clears the returned CCB, making
a number of calls to CCB_CLEAR_ALL_EXCEPT_HDR(3) unnecessary.
Reviewed By: imp
Sponsored by: NetApp, Inc.
Sponsored by: Klara, Inc.
Differential Revision: https://reviews.freebsd.org/D27812
Most of table types currently supported by ipfw have only one
algorithm implementation. When user creates such tables, allow
to omit algo name in arguments. E.g. now it is possible:
ipfw table T1 create type number
ipfw table T2 create type iface
ipfw table T3 create type flow
PR: 233072
MFC after: 1 week
Sponsored by: Yandex LLC
Some SATA drives have 'config' set to 0 in the identify block. Rather than rely
on it, use the strings windows uses to display the drive since they are supposed
to be space padded and will always be non-zero.
Make sys/buf.h, sys/pipe.h, sys/fs/devfs/devfs*.h headers usable in
userspace, assuming that the consumer has an idea what it is for.
Unhide more material from sys/mount.h and sys/ufs/ufs/inode.h,
sys/ufs/ufs/ufsmount.h for consumption of userspace tools, with the
same caveat.
Remove unacceptable hack from usr.sbin/makefs which relied on sys/buf.h
being unusable in userspace, where it override struct buf with its own
definition. Instead, provide struct m_buf and struct m_vnode and adapt
code to use local variants.
Reviewed by: mckusick
Tested by: pho
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D28679
Currently when peer information is displayed with `ifconfig wgN peer ..`
or `ifconfig wgN peer-list`, the netmask of the first `allowed-ips` will
be used as the netmask of all CIDR in `allowed-ips`. For example, if
the list is `192.168.1.0/24, 172.16.0.0/16`, it will display as
`192.168.1.0/24, 172.16.0.0/24`. While this does not affect the actual
functionality, it is very confusing.
Submitted by: Michael Chiu <nyan -at- myuji.xyz>
Reviewed by: grehan
Differential Revision: https://reviews.freebsd.org/D28655
MFC after: 1 day
The "source" variable was introduced in r26072, probably as the
traditional counterpart to "target". But the "source"/"target" names
suggest the opposite of their actual meaning. With ln, for example, the
source is the real file and the target is the newly created link. In
mount_nullfs the meaning is the opposite: the target is the existing
file system and the source is the newly created mountpoint. Better to
use "target"/"mountpoint" terminology, which matches the man page.
MFC after: 6 weeks
Sponsored by: Axcient
Mountroot isn't documented in the extant manual pages - so this
phrasing, while less absolute and concise, still conveys which
modules are recommended to be handled via loader.conf(5), and it also
does a better job of elucidating that the modules can include filesystem
drivers.
Submitted by: kevans (earlier version)
Reported by: imp, kevans, eugen
Reviewed by: kevans
Differential Revision: https://reviews.freebsd.org/D28542
Historically receive buffer overflows have been ignored and programs
could not tell if they missed messages or messages had been truncated
because of overflows. Since programs historically do not expect to get
receive overflow errors, this behavior is not the default.
This is really really important for programs that use route(4) to keep in sync
with the system. If we loose a message then we need to reload the full system
state, otherwise the behaviour from that point is undefined and can lead
to chasing bogus bug reports.
