jsg [Tue, 2 Jul 2024 04:10:25 +0000 (04:10 +0000)]
remove unused agp_map functions
last use (in inteldrm) was removed in March
yasuoka [Tue, 2 Jul 2024 00:35:56 +0000 (00:35 +0000)]
Fix previous. The place of "accounting" was wrong.
yasuoka [Tue, 2 Jul 2024 00:33:51 +0000 (00:33 +0000)]
Add support for RADIUS accounting.
yasuoka [Tue, 2 Jul 2024 00:00:12 +0000 (00:00 +0000)]
Change the syntax for "module" and "authenticate". "module" can have
a {} block now. On the other hand, "authentication" can be without a
{} block. The previous syntax is still accepted. Also make
specifying the path of "module" be optional.
yasuoka [Mon, 1 Jul 2024 23:53:30 +0000 (23:53 +0000)]
Stop scheduling an I/O event by the timer when the imsg_buf has the data
larger than the imsg header. It prevented the receiver from receiving the
following parts of the message.
deraadt [Mon, 1 Jul 2024 18:52:22 +0000 (18:52 +0000)]
signal handler must use the save_errno dance, and massage a variable
of type 'volatile sig_atomic_t'
ok tb
deraadt [Mon, 1 Jul 2024 18:43:50 +0000 (18:43 +0000)]
missing save_errno dance inside non-terminal signal handler
jmc [Mon, 1 Jul 2024 14:56:19 +0000 (14:56 +0000)]
tidy up the text in previous; ok yasuoka
yasuoka [Mon, 1 Jul 2024 14:15:15 +0000 (14:15 +0000)]
Enclose IPv6 address in a square bracket if the address is used with
the port number.
ok florian tobhe
kettenis [Mon, 1 Jul 2024 14:13:43 +0000 (14:13 +0000)]
Don't crash if we can't read the temperature for a zone while polling it.
ok dv@
bluhm [Mon, 1 Jul 2024 12:06:45 +0000 (12:06 +0000)]
Explicit TLS handshake with syslog client.
Add a new TLS handshake callback for incoming connections. This
will allow to inspect the client certificate later. For now only
print a debug message and check it in regress.
with and OK henning@
yasuoka [Mon, 1 Jul 2024 07:09:07 +0000 (07:09 +0000)]
Modify IPCP to use {D,NB}NS servers from RADIUS. Also move the
radius related functions from ppp.c to npppd_radius.c.
yasuoka [Mon, 1 Jul 2024 05:20:01 +0000 (05:20 +0000)]
Exit with an error code when error or module die.
CVS ----------------------------------------------------------------------
yasuoka [Mon, 1 Jul 2024 05:18:16 +0000 (05:18 +0000)]
Set SO_REUSEADDR for the listening socket. This makes radiusd(8)
can bind both on an interface address and a wildcard address.
djm [Mon, 1 Jul 2024 04:31:59 +0000 (04:31 +0000)]
openssh-9.8
djm [Mon, 1 Jul 2024 04:31:17 +0000 (04:31 +0000)]
when sending ObscureKeystrokeTiming chaff packets, we can't
rely on channel_did_enqueue to tell that there is data to send.
This flag indicates that the channels code enqueued a packet
on _this_ ppoll() iteration, not that data was enqueued in _any_
ppoll() iteration in the timeslice. ok markus@
yasuoka [Mon, 1 Jul 2024 03:48:57 +0000 (03:48 +0000)]
Call daemon(3) before parse_config() since parse_config() of radiusd(8)
starts some sub processes and parent-child relationship with them must
be kept. But we want to show config error on stderr, so keep stdio
files open and close them after parse_config().
yasuoka [Mon, 1 Jul 2024 03:32:09 +0000 (03:32 +0000)]
Remove unused secret field from struct radiusd_authentication
yasuoka [Mon, 1 Jul 2024 03:31:29 +0000 (03:31 +0000)]
Don't receive decoration when not requested.
yasuoka [Mon, 1 Jul 2024 03:29:21 +0000 (03:29 +0000)]
Show config error when -n
yasuoka [Mon, 1 Jul 2024 03:27:31 +0000 (03:27 +0000)]
Add missing size check.
yasuoka [Mon, 1 Jul 2024 03:22:06 +0000 (03:22 +0000)]
"secret" without quote can be used for key or value since it is treated
specially now.
yasuoka [Mon, 1 Jul 2024 03:17:00 +0000 (03:17 +0000)]
Tweak a white space.
yasuoka [Mon, 1 Jul 2024 03:13:42 +0000 (03:13 +0000)]
Delete a garbage empty definition.
djm [Mon, 1 Jul 2024 03:10:19 +0000 (03:10 +0000)]
use "lcd" to change directory before "lls" rather then "cd", since
the directory we're trying to list is local. Spotted by Corinna
Vinschen
jsg [Mon, 1 Jul 2024 00:05:43 +0000 (00:05 +0000)]
Remove history of the tms struct. It is tied to the function,
and the manual incorrectly claimed it first appeared in 4BSD.
ok deraadt@
jsg [Sun, 30 Jun 2024 23:57:31 +0000 (23:57 +0000)]
correct history; first mention of /etc/rc in init manual pages was v4
ok deraadt@
jsg [Sun, 30 Jun 2024 23:44:49 +0000 (23:44 +0000)]
correct history; dmesg appeared (without a manual page) in v7
ok deraadt@
deraadt [Sun, 30 Jun 2024 18:17:07 +0000 (18:17 +0000)]
we don't need the NOBYFOUR space-savings option anymore, that codepath
was replaced a while ago.
ok tb
deraadt [Sun, 30 Jun 2024 17:30:52 +0000 (17:30 +0000)]
delete dhclient(8). ipv4 dhcp leases have been acquired by the
always-running-in-background dhcpleased(8) for a while, which is
activated per-interface with "ifconfig $if autoconf', or
"ifconfig $if inet autoconf", or with "inet autoconf" in /etc/hostname.$if
dhclient(8) has done execve(3) of ifconfig(8) to handle this for a while,
so everyone has moved to the dhcpleased(8) method
ok florian
florian [Sun, 30 Jun 2024 16:10:26 +0000 (16:10 +0000)]
Clearify "force" and "preference" interaction.
Problem reported by Kirill A. Korinsky
OK kn
jsing [Sun, 30 Jun 2024 14:13:08 +0000 (14:13 +0000)]
Remove lhash statistics.
These are not exactly useful and we previously stopped exposing them.
ok tb@
krw [Sun, 30 Jun 2024 12:03:17 +0000 (12:03 +0000)]
Use howmany() to calculate how many prpl entries are needed to describe a
hibernate i/o.
Use of howmany() suggested by jmatthew@, ok jmatthew@
kevlo [Sun, 30 Jun 2024 08:13:02 +0000 (08:13 +0000)]
Add support for the Realtek RTL8126 chip to the rge(4) driver.
The RTL8126 is a PCIe to 5Gb Ethernet controller.
kevlo [Sun, 30 Jun 2024 08:12:06 +0000 (08:12 +0000)]
regen
kevlo [Sun, 30 Jun 2024 08:11:36 +0000 (08:11 +0000)]
Add Realtek RTL8126.
tb [Sun, 30 Jun 2024 05:18:14 +0000 (05:18 +0000)]
sync with base
tb [Sun, 30 Jun 2024 05:16:17 +0000 (05:16 +0000)]
cast string literals with z_const char *
from upstream
2ba25b2ddab9aa939c321d087fcfca573a9cca55
tb [Sun, 30 Jun 2024 05:13:38 +0000 (05:13 +0000)]
Z_HUFFMAN -> Z_HUFFMAN_ONLY + linewrapping churn in a comment
from upstream
0f3b7b9595cc7d85c3b13282e71fcecef7f18f9c
jsg [Sun, 30 Jun 2024 00:29:36 +0000 (00:29 +0000)]
remove struct acpi_parsestate, unused since dsdt.c rev 1.16
jsg [Sat, 29 Jun 2024 23:56:07 +0000 (23:56 +0000)]
remove defines for acpi ioctls, unused since acpi.c rev 1.59
jsg [Sat, 29 Jun 2024 23:37:50 +0000 (23:37 +0000)]
remove struct acpi_dev_rank, unused since acpi.c rev 1.144
florian [Sat, 29 Jun 2024 17:25:56 +0000 (17:25 +0000)]
Disable the shared cache between resolvers for now.
Since the latest libunbound update the frontend process would segfault
about once a day on one of my MX servers with what looks like a
use-after-free deep inside of libunbound.
Maybe we are poking too much at internals and the shared cache is too
much of a hack. #ifdef for now to ease investigation, but it is
possible that this code just has to go.
tb [Sat, 29 Jun 2024 16:10:08 +0000 (16:10 +0000)]
Z_HUFFMAN -> Z_HUFFMAN_ONLY
from upstream
0f3b7b9595cc7d85c3b13282e71fcecef7f18f9c
jsg [Sat, 29 Jun 2024 12:09:51 +0000 (12:09 +0000)]
remove unused vars
yasuoka [Sat, 29 Jun 2024 11:50:31 +0000 (11:50 +0000)]
Fix typos in previous.
jsg [Sat, 29 Jun 2024 11:32:35 +0000 (11:32 +0000)]
remove unused vars
jsg [Sat, 29 Jun 2024 11:29:55 +0000 (11:29 +0000)]
remove unused var
tb [Sat, 29 Jun 2024 07:34:12 +0000 (07:34 +0000)]
fix typo
yasuoka [Sat, 29 Jun 2024 07:19:18 +0000 (07:19 +0000)]
Add variables for RFC 5176 Error Cause.
yasuoka [Sat, 29 Jun 2024 00:53:56 +0000 (00:53 +0000)]
Add variables for DAE for RADIUS (RFC 5176).
bluhm [Fri, 28 Jun 2024 21:36:05 +0000 (21:36 +0000)]
Link regress unp-write-closed to build.
mvs [Fri, 28 Jun 2024 21:30:24 +0000 (21:30 +0000)]
Restore original EPIPE and ENOTCONN errors priority in the uipc_send()
path changed in rev 1.206. At least acme-client(1) is not happy with
this change.
Reported by claudio. Tests and ok by bluhm.
bluhm [Fri, 28 Jun 2024 21:07:27 +0000 (21:07 +0000)]
Test writing to socket pair closed by the other side. This must
trigger EPIPE error.
with and OK mvs@
tb [Fri, 28 Jun 2024 14:50:37 +0000 (14:50 +0000)]
Add more regress coverage for SSL_select_next_proto()
tb [Fri, 28 Jun 2024 14:48:43 +0000 (14:48 +0000)]
The ALPN callback should really ignore the out parameter if there's
no overlap. Document that explicitly. Also make it more explicit that
that the caller must work with a copy of out.
ok jsing
jan [Fri, 28 Jun 2024 14:46:31 +0000 (14:46 +0000)]
Cleanup control queue checks in vio(4).
Add missing newlines in prints while here.
ok sf@
tb [Fri, 28 Jun 2024 14:46:19 +0000 (14:46 +0000)]
Fix SSL_select_next_proto()
SSL_select_next_proto() is already quite broken by its design: const in,
non-const out, with the intention of pointing somewhere inside of the two
input pointers. A length returned in an unsigned char (because, you know,
the individual protocols are encoded in Pascal strings). Can't signal
uailure either. It also has an unreachable public return code.
Also, due to originally catering to NPN, this function opportunistically
selects a protocol from the second input (client) parameters, which makes
little sense for ALPN since that means the server falls back to a protocol
it doesn't (want to) support. If there's no overlap, it's the callback's
job to signal error to its caller for ALPN.
As if that wasn't enough misdesign and bugs, the one we're concerned with
here wasn't reported to us twice in ten years is that if you pass this API
a zero-length (or a sufficiently malformed client protocol list), it would
return a pointer pointing somewhere into the heap instead into one of the
two input pointers. This pointer could then be interpreted as a Pascal
string, resulting in an information disclosure of up to 255 bytes from the
heap to the peer, or a crash.
This can only happen for NPN (where it does happen in old python and node).
A long time ago jsing removed NPN support from LibreSSL, because it had
an utter garbage implementation and because it was practically unused.
First it was already replaced by the somewhat less bad ALPN, and the only
users were the always same language bindings that tend to use every feature
they shouldn't use. There were a lot of complaints due to failing test
cases in there, but in the end the decision turned out to be the right
one: the consequence is that LibreSSL isn't vulnerable to CVE-2024-5535.
Still, there is a bug here to fix. It is completely straightforward to
do so. Rewrite this mess using CBS, preserving the current behavior.
Also, we do not follow BoringSSL's renaming of the variables. It would
result in confusing code in almost all alpn callbacks I've seen in the
wild. The only exception is the accidental example of Qt.
ok jsing
jsing [Fri, 28 Jun 2024 13:37:49 +0000 (13:37 +0000)]
Remove handling of SSLv2 client hello messages.
This code was only previously enabled if the minimum enabled version was
TLSv1.0 and a non-version locked method is in use. Since TLSv1.0 and
TLSv1.1 were disabled nearly a year ago, this code is no longer ever
being used.
ok tb@
jsg [Fri, 28 Jun 2024 03:37:58 +0000 (03:37 +0000)]
drm/amdgpu: fix UBSAN warning in kv_dpm.c
From Alex Deucher
b065d79ed06a0bb4377bc6dcc2ff0cb1f55a798f in linux-6.6.y/6.6.36
f0d576f840153392d04b2d52cf3adab8f62e8cb6 in mainline linux
jsg [Fri, 28 Jun 2024 03:35:06 +0000 (03:35 +0000)]
drm/radeon: fix UBSAN warning in kv_dpm.c
From Alex Deucher
9e57611182a817824a17b1c3dd300ee74a174b42 in linux-6.6.y/6.6.36
a498df5421fd737d11bfd152428ba6b1c8538321 in mainline linux
jsg [Fri, 28 Jun 2024 03:33:00 +0000 (03:33 +0000)]
drm/i915/mso: using joiner is not possible with eDP MSO
From Jani Nikula
e7bda1f8ba8436266f7e49778009bf9995d1c801 in linux-6.6.y/6.6.36
49cc17967be95d64606d5684416ee51eec35e84a in mainline linux
djm [Thu, 27 Jun 2024 23:01:15 +0000 (23:01 +0000)]
delete obsolete comment
djm [Thu, 27 Jun 2024 22:36:44 +0000 (22:36 +0000)]
retire unused API
mglocker [Thu, 27 Jun 2024 21:35:34 +0000 (21:35 +0000)]
Clear interrupt before we process the request as specified in the
documentation.
jmc [Thu, 27 Jun 2024 21:02:16 +0000 (21:02 +0000)]
ssl(8) no longer contains a HISTORY section;
jmc [Thu, 27 Jun 2024 20:15:50 +0000 (20:15 +0000)]
space before punctuation in macro;
florian [Thu, 27 Jun 2024 16:39:31 +0000 (16:39 +0000)]
Remove outdated references to dhclient, it's finally going away.
Input & OK jmc
florian [Thu, 27 Jun 2024 14:53:06 +0000 (14:53 +0000)]
dhclient hasn't prodded us in a long time to renew a lease.
OK deraadt
kettenis [Thu, 27 Jun 2024 09:40:15 +0000 (09:40 +0000)]
Implement ts_set_limit() for rk3588. This makes thermal zones on rk3588
boards work. This should make DVFS safe on those boards. Note that the
device trees shipped with the current u-boot-rk3588 package do not
include the necessary support for DVFS and thermal zones yet.
ok dlg@
kettenis [Thu, 27 Jun 2024 09:37:07 +0000 (09:37 +0000)]
Implement an optional callback function for thermal sensors to set a trip
limit to support thermal zones that don't do polling. Thermal sensor
drivers should implement this callback if they can generate an interrupt
when the trop limit is reached and should call thermal_senser_update()
when that happens.
ok dlg@
djm [Wed, 26 Jun 2024 23:47:46 +0000 (23:47 +0000)]
move child process waitpid() loop out of SIGCHLD handler;
ok deraadt
deraadt [Wed, 26 Jun 2024 23:16:52 +0000 (23:16 +0000)]
Instead of using possibly complex ssh_signal(), write all the parts
of the grace_alarm_handler() using the exact things allowed by the
signal-safe rules. This is a good rule of thumb: Handlers should
be written to either set a global volatile sig_atomic_t inspected
from outside, and/or directly perform only safe operations listed
in our sigaction(2) manual page.
ok djm markus
deraadt [Wed, 26 Jun 2024 23:14:14 +0000 (23:14 +0000)]
save_errno wrappers inside two small signal handlers that perform
system calls, for systems with libc that do perform libc sigtramps.
ok djm markus
asou [Wed, 26 Jun 2024 21:41:30 +0000 (21:41 +0000)]
Remove unnecessary structure declaration.
ok jsg@
mvs [Wed, 26 Jun 2024 12:23:36 +0000 (12:23 +0000)]
Push socket re-lock to the vnode(9) release path within unp_detach().
The only reason to re-lock dying `so' is the lock order with vnode(9)
lock, thus `unp_gc_lock' rwlock(9) could be taken after solock().
ok bluhm
claudio [Wed, 26 Jun 2024 08:28:45 +0000 (08:28 +0000)]
Bump version
tb [Wed, 26 Jun 2024 03:41:10 +0000 (03:41 +0000)]
remove psk_idx from tlsext_randomize_build_order()
ok jsing
tb [Wed, 26 Jun 2024 03:39:49 +0000 (03:39 +0000)]
tls_extension_find(): make output index optional
suggested by jsing
jsg [Wed, 26 Jun 2024 01:40:49 +0000 (01:40 +0000)]
return type on a dedicated line when declaring functions
ok mglocker@
jsing [Tue, 25 Jun 2024 14:10:45 +0000 (14:10 +0000)]
Implement RSA key exchange in constant time.
RSA key exchange is known to have multiple security weaknesses,
including being potentially susceptible to padding oracle and timing
attacks.
The RSA key exchange code that we inherited from OpenSSL was riddled
with timing leaks, many of which we fixed (or minimised) early on.
However, a number of issues still remained, particularly those
related to libcrypto's RSA decryption and padding checks.
Rework the RSA key exchange code such that we decrypt with
RSA_NO_PADDING and then check the padding ourselves in constant
time. In this case, the pre-master secret is of a known length,
hence the padding is also a known length based on the size of the
RSA key. This makes it easy to implement a check that is much safer
than having RSA_private_decrypt() depad for us.
Regardless, we still strongly recommend disabling RSA key exchange
and using other key exchange methods that provide perfect forward
secrecy and do not depend on client generated keys.
Thanks to Marcel Maehren, Nurullah Erinola, Robert Merget, Juraj
Somorovsky, Joerg Schwenk and Hubert Kario for raising these issues
with us at various points in time.
ok tb@
claudio [Tue, 25 Jun 2024 13:21:18 +0000 (13:21 +0000)]
When filling prefixes with pt_writebuf() keep 2 bytes reserved in the
withdraw case. Those bytes are needed for the attribute length field.
Without this withdraw messages can become overfull and are dropped
without notice.
Problem found and fix tested by denis@
OK denis@ tb@
kettenis [Tue, 25 Jun 2024 12:02:48 +0000 (12:02 +0000)]
Print the last non-wakeup interrupt received during suspend. Note that
this may print an (MSI) interrupt that sneaks in just before we actually
enter the idle loop on the primary CPU. While such an interrupt shouldn't
happen, they won't prevent the machine from reaching a low power idle state.
So at this point these non-wakeup interrupts only need to be investigated
when the primary CPU gets woken up repeatedly.
ok mglocker@, deraadt@
kettenis [Tue, 25 Jun 2024 11:57:10 +0000 (11:57 +0000)]
Implement sleep button and EC events as wakeup events. Print the wakeup
reason.
ok mglocker@, deraadt@
tb [Tue, 25 Jun 2024 05:46:48 +0000 (05:46 +0000)]
Fix TLS extension shuffling
The diff decoupling the shuffle from the table order still relied on PSK
being last because it failed to adjust the upper bound in the for loop.
ok jsing
bluhm [Mon, 24 Jun 2024 21:22:14 +0000 (21:22 +0000)]
Show AMD SEV bits during identify CPU in dmesg.
Enable identifycpu() to discover and show AMD SEV related information
provided by cpuid.
The "crypt bit" for page table entries is stored in amd64_pos_cbit,
although it is not used yet.
Registers ecx and edx provide the number of guest and minimum ASID
for SEV-only guests. At least the latter value can be configured
in the BIOS, so it is useful to have this information in dmesg.
Therefore define emtpy bit masks for printf("%b") to get the raw
numbers.
from hshoexer@; OK mlarkin@
mglocker [Mon, 24 Jun 2024 15:56:07 +0000 (15:56 +0000)]
Some machines send AC change notifications to acpibat(4). Forward this
notification to acpiac(4), so that the AC status can be reflected correctly
to programs like apm(8).
This for example fixes the AC status on the Microsoft Surface Go 4.
Help from kettenis@
ok deraadt@, kettenis@
deraadt [Mon, 24 Jun 2024 14:39:28 +0000 (14:39 +0000)]
changing EINVAL from "has no associated size" to "has insufficient size"
does a better job of covering the case of partition not configured
(size = 0) or other too-small decision the kernel may make
bluhm [Mon, 24 Jun 2024 12:19:19 +0000 (12:19 +0000)]
Explicitly allocate stack memory for ICMP payload in IPv4 forward.
Old ip_forward() allocated a fake mbuf copy on the stack to send
an ICMP packet after ip_output() has failed. It seems easier to
just copy the data onto the stack that icmp_error() may use. Only
if the ICMP error packet is acutally sent, create the mbuf.
m_dup_pkthdr() uses atomic operation to link the incpb to mbuf.
pf_pkt_addr_changed() was immediately called afterwards to remove
the linkage again. Also m_tag_delete_chain() was overhead. New
code uses less CPU locking in the hot path.
OK deraadt@ claudio@
nicm [Mon, 24 Jun 2024 08:30:50 +0000 (08:30 +0000)]
Add a way (refresh-client -r) for control mode clients to provide OSC 10
and 11 responses to tmux so they can set the default foreground and
background colours, from George Nachman in GitHub issue 4014.
nicm [Mon, 24 Jun 2024 08:11:46 +0000 (08:11 +0000)]
Check the underline style colour against the correct default value again
(it was changed from 0 to 8), from Romain Francoise.
jmc [Mon, 24 Jun 2024 06:59:39 +0000 (06:59 +0000)]
- uppercase start of sentence
- correct sentence grammar
ok djm
tb [Mon, 24 Jun 2024 06:50:07 +0000 (06:50 +0000)]
ssl_err: KNF tweak
tb [Mon, 24 Jun 2024 06:49:45 +0000 (06:49 +0000)]
ssl_err: fix whitespace
tb [Mon, 24 Jun 2024 06:43:22 +0000 (06:43 +0000)]
libcrypto: constify most error string tables
These constitute the bulk of the remaining global mutable state in
libcrypto. This commit moves most of them into data.rel.ro, leaving
out ERR_str_{functs,libraries,reasons} (which require a slightly
different approach) and SYS_str_reasons which is populated on startup.
The main observation is that if ERR_load_strings() is called with a 0 lib
argument, the ERR_STRING_DATA argument is not actually modified. We could
use this fact to cast away const on the caller side and be done with it.
We can make this cleaner by adding a helper ERR_load_const_strings() which
explicitly avoids the assignment to str->error overriding the error code
already set in the table.
In order for this to work, we need to sprinkle some const in err/err.c.
CMS called ERR_load_strings() with non-0 lib argument, but this didn't
actually modify the error data since it ored in the value already stored
in the table.
Annoyingly, we need to cast const away once, namely in the call to
lh_insert() in int_err_set_item(). Fixing this would require changing
the public API and is going to be tricky since it requires that the
LHASH_DOALL_FN_* types adjust.
ok jsing
tb [Mon, 24 Jun 2024 06:32:04 +0000 (06:32 +0000)]
x509_conf: rename the merr label into err
jsg [Mon, 24 Jun 2024 05:15:29 +0000 (05:15 +0000)]
Studio -> Mac Studio; from Bryan Vyhmeister
djm [Mon, 24 Jun 2024 04:05:11 +0000 (04:05 +0000)]
mention SshdSessionPath option
jsg [Mon, 24 Jun 2024 03:57:38 +0000 (03:57 +0000)]
drm/i915: Fix audio component initialization
From Imre Deak
f287b1e34f1dd910723ca720300548c27a9a72d7 in linux-6.6.y/6.6.35
75800e2e4203ea83bbc9d4f63ad97ea582244a08 in mainline linux
jsg [Mon, 24 Jun 2024 03:52:26 +0000 (03:52 +0000)]
drm/i915/dpt: Make DPT object unshrinkable
From Vidya Srinivas
7a9883be3b98673333eec65c4a21cc18e60292eb in linux-6.6.y/6.6.35
43e2b37e2ab660c3565d4cff27922bc70e79c3f1 in mainline linux