Commit Graph

3711 Commits

Author SHA1 Message Date
Mike Frysinger c8d5210337 newlib: info: tweak iconv node to avoid collisions
We have "Iconv" and "iconv" nodes which generates Iconv.html and
iconv.html files.  On a case-insensitive filesystem, these collide.
Rename the "Iconv" node to match the chapter name that it's already
using to avoid the issue.
2022-12-13 05:22:09 -05:00
Corinna Vinschen 55de3fdd0e Cygwin: define FILE as struct __sFILE64, not as __sFILE
Until Cygwin 3.3.6, we define __LARGE64_FILES unconditionally, so we
were using the type __sFILE64 even for 64 bit.  That was lazy and wrong.
so commit 2902b3a09e ("Cygwin: drop requirement to build newlib's
stdio64") tried to fix that.

Unfortunately this patch forgot to take the exposure of the typename
__sFILE64 in userspace into account.  This leads to trouble in C++ due
to name mangling.

Commit 0f376ae220 tried to fix this by just renaming __sFILE to
__sFILE64 by using a macro.  While __sFILE and __sFILE64 are the same
size, they are not exactly congruent.

To avoid backward compatibility problems, make sure to define FILE
as the  real __sFILE64, and make sure that __sFILE is not defined at
all on Cygwin.

Fixes: 0f376ae220 ("Cygwin: rename __sFILE to __sFILE64 for backward
compatibility")
Fixes: 2902b3a09e ("Cygwin: drop requirement to build newlib's stdio64")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-12-08 17:16:20 +01:00
Alexey Lapshin 0b09753a3f libc: fix fropen/fwopen compile warnings
This patch fixes warnings that appears when compiling:

#define fwopen(__cookie,__fn) funopen(__cookie, (int (*)())0, __fn,
(fpos_t (*)())0, (int (*)())0)
Expands to:

funopen(__null, (int (*)())0, &app_printf, (fpos_t (*)())0, (int
(*)())0)
argument of type "int (*)()" is incompatible with parameter of type
"int (*)(void *__cookie, char *__buf, int __n)"C/C++(167)
invalid conversion from 'fpos_t (*)()' {aka 'long int (*)()'} to
'fpos_t (*)(void*, fpos_t, int)' {aka 'long int (*)(void*,

Discussion is here:
https://github.com/espressif/arduino-esp32/issues/7407
2022-12-07 13:10:24 +01:00
Corinna Vinschen 8d138c3f66 Cygwin: fix LC_CTYPE in global locale to be a real C.UTF-8 locale
https://cygwin.com/pipermail/cygwin/2022-December/252571.html

Cygwin's default locale is "C.UTF-8" as far as LC_CTYPE settings
are concerned.  However, while __global_locale contains fixed
mbtowc and wctomb pointers, the lc_ctype_T pointer is still pointing
to _C_ctype_locale, representing the standard "C" locale.

The problem with this is that the codeset name as well as MB_CUR_MAX
is wrong.

Fix this by introducing a new lc_ctype_T structure called
_C_utf8_ctype_locale, setting the default codeset to "UTF-8" and
MB_CUR_MAX to 6.  Use this as lc_ctype_T pointer in __global_locale
by default on Cygwin.

Fixes: a6a477fa81 ("POSIX-1.2008 per-thread locales, groundwork part 1")
Co-Authored-By: Takashi Yano <takashi.yano@nifty.ne.jp>
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-12-03 16:16:30 +01:00
Tobias Burnus b7aca332ce amdgcn: Use __builtin_gcn_ in libc/machine/amdgcn/getreent.c
Call __builtin_gcn_get_stack_limit and __builtin_gcn_first_call_this_thread_p
to reduce dependency on some register/layout assumptions by using the new
GCC mainline (GCC 13) builtins, if they are available. If not, the existing
code is used.
2022-11-22 18:05:34 -05:00
Tobias Burnus b9898fc993 amdgcn: Replace asm("s8") by __builtin_gcn_kernarg_ptr if existing
Check whether __builtin_gcn_kernarg_ptr is available and, if it is,
call it instead using the hard-coded 'asm("s8")' in:
* newlib/libc/machine/amdgcn/exit-value.h (exit_with_int)
* newlib/libc/machine/amdgcn/mlock.c (sbrk)
* newlib/libc/sys/amdgcn/write.c (write)

 newlib/libc/machine/amdgcn/exit-value.h |  6 ++++++
 newlib/libc/machine/amdgcn/mlock.c      | 10 +++++++---
 newlib/libc/sys/amdgcn/write.c          |  4 ++++
 3 files changed, 17 insertions(+), 3 deletions(-)
2022-11-21 13:10:29 +01:00
Jon Turney c03f0c3062
makedocbook: Fix false report of unhandled texinfo command
During 'make man', makedocbook falsely reports "texinfo command
'@modifier' remains in output" while processing the setlocal(3) manpage,
which contains that literal string.

Move the check for unrecognized texinfo commands to before processing
'@@' (an escaped '@') in the texinfo source, and teach it to ignore
them.

Improve that check slightly, so it catches non-alphabetic texinfo
commands, of which there are few.

Now we don't have false positives, we can make unrecognized texinfo
commands fatal to manpage generation, rather than leaving them verbatim
in the generated manpage.
2022-11-12 14:09:11 +00:00
Jon Turney 999925b253
makedocbook: Adjust inline whitespace to fix flake8 warnings 2022-11-12 14:09:10 +00:00
Jon Turney 2521dd48d8
makedocbook: Drop stray semicolons
This isn't written in C :)
2022-11-12 14:09:08 +00:00
Jon Turney 8b6c4249e2
makedocbook: Use sys.exit()
Use sys.exit() to write a message to stderr and terminate with a
non-zero exit code.
2022-11-12 14:09:07 +00:00
Jon Turney 2432d77099
makedocbook: Use raw strings for regexes
Use raw strings for regexes. This is best practice, and fixes a number
of "W605 invalid escape sequence" flakes.
2022-11-12 14:09:05 +00:00
Sebastian Huber 5c79aa4b22 powerpc/setjmp: Fix 64-bit buffer alignment
The rlwinm is a word-size instruction which clears the remaining 32 bits of a
64-bit register.  Use clrrdi in 64-bit configurations.
2022-11-10 16:05:17 +01:00
Thomas Schwinge 67459ce679 Generally make all 'long double complex' methods available in <complex.h>
..., not just '#if defined(__CYGWIN__)'.  (Exception: 'clog10l' which currently
indeed is for Cygwin only.)

This completes 2017-07-05 commit be3ca39474
"Fixed warnings for some long double complex methods" after Aditya Upadhyay's
work on importing "Long double complex methods" from NetBSD.

For example, this changes GCC/nvptx libgfortran 'configure' output as follows:

    [...]
    checking for ccosf... yes
    checking for ccos... yes
    checking for ccosl... [-no-]{+yes+}
    [...]

..., and correspondingly GCC/nvptx 'nvptx-none/libgfortran/config.h' as
follows:

    [...]
     /* Define to 1 if you have the `ccosl' function. */
    -/* #undef HAVE_CCOSL */
    +#define HAVE_CCOSL 1
    [...]

Similarly for 'ccoshl', 'cexpl', 'cpowl', 'csinl', 'csinhl', 'ctanl', 'ctanhl',
'cacoshl', 'cacosl', 'casinhl', 'catanhl'.  ('conjl', 'cprojl' are not
currently being used in libgfortran.)

This in turn simplifies GCC/nvptx 'libgfortran/intrinsics/c99_functions.c'
compilation such that this files doesn't have to provide its own
"Implementation of various C99 functions" for those, when in fact they're
available in newlib libm.
2022-11-08 21:38:08 +01:00
Corinna Vinschen a8526cb52b strftime/wcsftime: use STRLEN, not strlen
Commit 737e2004a3 accidentally introduced a call to strlen in
code used with wide character strings in case of wcsftime.  Use
STRLEN instead.

Fixes: 737e2004a3 ("strftime.c(__strftime): add %q, %v, tests; tweak %Z doc")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-10-29 20:15:58 +02:00
Jon Turney d3d63cecbb
makedocbook: Add explicit locking for PLY parser table generation
Drop 'makedocbook --cache' (any dependency on the man-cache rule which
invokes that was dropped by the non-recursive make changes)

Instead, add some explicit locking which prevents processes colliding
over the file containing generated python code for the parser table.
2022-10-29 18:34:05 +01:00
Sebastian Huber a89d3a89c3 powerpc/setjmp: Fix 64-bit support
The first attempt to support the 64-bit mode had two bugs:

1. The saved general-purpose register 31 value was overwritten with the saved
   link register value.

2. The link register was saved and restored using 32-bit instructions.

Use 64-bit store/load instructions to save/restore the link register.  Make
sure that the general-purpose register 31 and the link register storage areas
do not overlap.
2022-10-28 12:53:42 +02:00
Jon Turney 85148c43c4
Fix warning during manpage generaton
> ERROR: xref linking to Stubs has no generated link text.
> Error: no ID for constraint linkend: Stubs.

(Despite saying "ERROR", this is actually a warning, and manpages are
still generated)

Improve chapter-texi2docbook so it generates elements for texinfo
sections as well, so that a cross-reference to the "Stubs" section
contains a valid element ID.
2022-10-28 11:33:43 +01:00
Brian Inglis 737e2004a3 strftime.c(__strftime): add %q, %v, tests; tweak %Z doc
%q GNU quarter year 1-4
%v BSD/OSX/Ruby VMS/Oracle %e-%b-%Y
%Z change time zone *name* to *abbreviation*
2022-10-25 12:15:40 +02:00
Brian Inglis d6a26e542d strptime.c(strptime_l): add %q GNU quarter 2022-10-24 14:07:23 +02:00
Szabolcs Nagy 0b6342c97f Rerun automake in newlib/
newlib/libc/sys/arm/Makefile.inc was modified but automake was not rerun in

  commit 5230eb7f8c
  Implement sysconf for Arm

on arm-none-eabi target this caused

  ld: B/arm-none-eabi/lib/libg.a(libc_a-mallocr.o): in function `malloc_extend_top':
  S/newlib-cygwin/newlib/libc/stdlib/_mallocr.c:2161: undefined reference to `sysconf'
2022-09-28 10:49:53 -04:00
Markus B. Moessner 01f6251c09 Fix missing extern C statement 2022-09-26 13:44:21 -04:00
Sebastian Huber d9dc88048a powerpc/setjmp: Add 64-bit support
Use 64-bit store/load instructions to save/restore the general-purpose
registers.
2022-09-24 08:39:29 +02:00
Jeff Johnston 5230eb7f8c Implement sysconf for Arm
- add support for using sysconf to get page size in _mallocr.c via
  HAVE_SYSCONF_PAGESIZE flag set in configure.host
- set flag in configure.host for arm and add a default sysconf implementation
  in libc/sys/arm that returns the page size
- the default implementation can be overridden outside newlib to allow a
  different page size to improve malloc on devices with a small footprint
  without needing to rebuild newlib
- this patch is based on a contribution from Torbjorn Svensson and
  Niklas Dahlquist (https://ecos.sourceware.org/ml/newlib/current/017616.html)
2022-09-19 15:35:55 -04:00
tb eb5c631ead upstream OpenBSD: arc4random: fix indent 2022-09-10 21:00:38 +02:00
djm 52a410f9bd upstream OpenBSD: arc4random: Randomise the rekey interval a little.
Previously, the chacha20 instance would be rekeyed every 1.6MB. This
makes it happen at a random point somewhere in the 1-2MB range.

Feedback deraadt@ visa@, ok tb@ visa@

newlib port: Make REKEY_BASE depend on SIZE_MAX
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-09-10 20:59:01 +02:00
dtucker f5fece2838 upstream OpenBSD: arc4random: Remove unused ivbits argument from chacha_keysetup
to match other instances in the tree. ok deraadt@
2022-09-10 20:58:03 +02:00
deraadt db5e07368c upstream OpenBSD: arc4random: replace abort() with _exit()
In the incredibly unbelievable circumstance where _rs_init() fails to
allocate pages, don't call abort() because of corefile data leakage
concerns, but simply _exit(). The reasoning is _rs_init() will only fail
if someone finds a way to apply specific pressure against this failure
point, for the purpose of leaking information into a core which they can
read. We don't need a corefile in this instance to debug that. So take
this "lever" away from whoever in the future wants to do that.
2022-09-10 20:58:03 +02:00
Corinna Vinschen dd22053fee upstream OpenBSD: arc4random: bump file versions
This hides a patch not required in newlib
2022-09-10 20:58:01 +02:00
bcook ef76759d7f upstream OpenBSD: arc4random: Add support for building arc4random with MSVC.
By default, MSVC's stdlib.h defines min(), so we need to spell out something
less common to avoid picking it up.

ok deraadt@ beck@ miod@
2022-09-10 20:56:25 +02:00
Torbjörn SVENSSON a68e99f883 Don't allocate another header when merging chunks
In the nano version of malloc, when the last chunk is to be extended,
there is no need to acount for the header again as it's already taken
into account in the overall "alloc_size" at the beginning of the
function.

Contributed by STMicroelectronics

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
2022-09-01 15:39:10 -04:00
Torbjörn SVENSSON 0455ea28ce Used chunk needs to be removed from free_list
When using nano malloc and the remaning heap space is not big enough to
fullfill the allocation, malloc will attempt to merge the last chunk in
the free list with a new allocation in order to create a bigger chunk.
This is successful, but the chunk still remains in the free_list, so
any later call to malloc can give out the same region without it first
being freed.

Possible sequence to verify:

void *p1 = malloc(3000);
void *p2 = malloc(4000);
void *p3 = malloc(5000);
void *p4 = malloc(6000);
void *p5 = malloc(7000);
free(p2);
free(p4);
void *p6 = malloc(35000);
free(p6);
void *p7 = malloc(42000);
void *p8 = malloc(32000);

Without the change, p7 and p8 points to the same address.
Requirement, after malloc(35000), there is less than 42000 bytes
available on the heap.

Contributed by STMicroelectronics

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
2022-09-01 14:40:27 -04:00
Jeff Johnston d92d3a3c4a Fix some Coverity Scan errors. 2022-08-31 15:18:08 -04:00
Torbjörn SVENSSON dd1122e21c Restore _lock initialization in non-single threaded mode
When __SINGLE_THREAD__ is not defined, stdin, stdout and stderr needs
to have their _lock instance initialized. The __sfp() method is not
invoked for the 3 mentioned fds thus, the std() method needs to handle
the initialization of the lock.

This is more or less a revert of 382550072b

Contributed by STMicroelectronics

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>
2022-08-31 10:02:53 +02:00
Jeff Johnston 64a11fded1 Fix problem with _newlib_version.h not being filled in correctly 2022-08-22 17:55:23 -04:00
Yilin Sun via Newlib b7109cf82e SH: Do not build syscalls if option provided
This patch makes syscalls for SH architecture respecting the global option
"--disable-newlib-supplied-syscalls". This is useful when a bare-metal
toolchain is needed.

Signed-off-by: Yilin Sun <imi415@imi.moe>
2022-08-15 15:12:19 -04:00
Corinna Vinschen 85be74f295 newlocale: fix crash when trying to write to __C_locale
This simple testcase:

  locale_t st = newlocale(LC_ALL_MASK, "C", (locale_t)0);
  locale_t st2 = newlocale(LC_CTYPE_MASK, "en_US.UTF-8", st);

is sufficient to reproduce a crash in _newlocale_r.  After the first call
to newlocale, `st' points to __C_locale, which is const.  When using `st'
as locale base in the second call, _newlocale_r tries to set pointers
inside base to NULL.  This is bad if base is __C_locale, obviously.

Add a test to avoid trying to overwrite pointer values inside base if
base is __C_locale.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-08-12 12:29:26 +02:00
Corinna Vinschen 2902b3a09e Cygwin: drop requirement to build newlib's stdio64
Given that 64 bit Cygwin defines all file access types (off_t,
fpos_t, and derived types) as 64 bit anyway, there's no reason
left to rely on the stdio64 part of newlib.  Use base functions
and base types.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2022-08-03 13:41:35 +02:00
Matt Joyce ea99f21ce6 Add --enable-newlib-reent-thread-local option
By default, Newlib uses a huge object of type struct _reent to store
thread-specific data.  This object is returned by __getreent() if the
__DYNAMIC_REENT__ Newlib configuration option is defined.

The reentrancy structure contains for example errno and the standard input,
output, and error file streams.  This means that if an application only uses
errno it has a dependency on the file stream support even if it does not use
it.  This is an issue for lower end targets and applications which need to
qualify the software according to safety standards (for example ECSS-E-ST-40C,
ECSS-Q-ST-80C, IEC 61508, ISO 26262, DO-178, DO-330, DO-333).

If the new _REENT_THREAD_LOCAL configuration option is enabled, then struct
_reent is replaced by dedicated thread-local objects for each struct _reent
member.  The thread-local objects are defined in translation units which use
the corresponding object.
2022-07-13 06:55:46 +02:00
Matt Joyce 1a09082036 Add _REENT_IS_NULL()
In a follow up patch, struct _reent is optionally replaced by dedicated
thread-local objects.  In this case,_REENT is optionally defined to NULL.  Add
the _REENT_IS_NULL() macro to disable this check on demand.
2022-07-13 06:55:46 +02:00
Matt Joyce db2123caf8 Add _REENT_SIG_FUNC(ptr)
Add a _REENT_SIG_FUNC() macro to encapsulate access to the
_sig_func member of struct reent. This will help to replace the
struct member with a thread-local storage object in a follow up
patch.
2022-07-13 06:55:46 +02:00
Matt Joyce 81352a9df9 Add _REENT_CVTBUF(ptr)
Add a _REENT_CVTBUF() macro to encapsulate access to the _cvtbuf
member of struct reent. This will help to replace the struct
member with a thread-local storage object in a follow up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce 315c420e1b Add _REENT_CVTLEN(ptr)
Add a _REENT_CVTLEN() macro to encapsulate access to the _cvtlen
member of struct reent. This will help to replace the struct
member with a thread-local storage object in a follow-up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce f89ce35d83 Add _REENT_CLEANUP(ptr)
Add a _REENT_CLEANUP() macro to encapsulate access to the
__cleanup member of struct reent. This will help to replace the
struct member with a thread-local storage object in a follow up
patch.
2022-07-13 06:55:46 +02:00
Matt Joyce 50f078b48c Add _REENT_LOCALE(ptr)
Add a _REENT_LOCALE() macro to encapsulate access to the _locale
member of struct reent. This will help to replace the struct
member with a thread-local storage object in a follow up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce 0985d418cb Add _REENT_INC(ptr)
Add a _REENT_INC() macro to encapsulate access to the _inc member
of struct reent. This will help to replace the struct member with
a thread-local storage object in a follow up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce e56801f34d Add _REENT_STDERR(ptr)
Add a _REENT_STDERR() macro to encapsulate access to the _stderr
member of struct reent. This will help to replace the struct
member with a thread-local storage object in a follow up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce 3266a46327 Add _REENT_STDOUT(ptr)
Add a _REENT_STDOUT() macro to encapsulate access to the _stdout
member of struct reent. This will help to replace the struct
member with a thread-local storage object in a follow up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce 627a5cb413 Add _REENT_STDIN(ptr)
Add a _REENT_STDIN() macro to encapsulate access to the _stdin
member of struct reent. This will help to replace the struct
member with a thread-local storage object in a follow up patch.
2022-07-13 06:55:46 +02:00
Matt Joyce f3b8138239 Add _REENT_ERRNO(ptr)
Add a _REENT_ERRNO() macro to encapsulate the access to the
_errno member of struct reent. This will help to replace the
structure member with a thread-local storage object in a follow
up patch.

Replace uses of __errno_r() with _REENT_ERRNO().  Keep __errno_r() macro for
potential users outside of Newlib.
2022-07-13 06:55:41 +02:00
Matt Joyce d0d78e96eb Define _REENT_EMERGENCY(ptr) only once
Use this macro to access the _emergency member of struct _reent.  This macro
will help to replace the _emergency member of struct _reent with a thread-local
storage object in a follow up patch.
2022-07-13 06:50:25 +02:00
Sebastian Huber a3fe1ed573 Move content in <sys/reent.h>
Move definitions not directly related to struct _reent to the bottom of the
file.  This allows a contiguous #ifndef _REENT_THREAD_LOCAL_STORAGE block.
2022-07-13 06:50:25 +02:00
Sebastian Huber 1db7cf5ce6 RTEMS: Add README 2022-07-11 13:19:29 +02:00
Gleb Smirnoff c1abc93988 libc/syslog: fully deprecate and don't try to open "/dev/log"
The "/dev/log" socket existed in pre-FreeBSD times.  Later it was
substituted to a compatibility symlink.  The symlink creation was
deprecated in FreeBSD 10.2 and 9-STABLE.

Reviewed by:		markj
Differential revision:	https://reviews.freebsd.org/D35304
2022-07-11 13:19:29 +02:00
Konrad Sewiłło-Jopek cf2ba7d7f8 arp: Implement sticky ARP mode for interfaces.
Provide sticky ARP flag for network interface which marks it as the
"sticky" one similarly to what we have for bridges. Once interface is
marked sticky, any address resolved using the ARP will be saved as a
static one in the ARP table. Such functionality may be used to prevent
ARP spoofing or to decrease latencies in Ethernet networks.

The drawbacks include potential limitations in usage of ARP-based
load-balancers and high-availability solutions such as carp(4).

The implemented option is disabled by default, therefore should not
impact the default behaviour of the networking stack.

Sponsored by:		Conclusive Engineering sp. z o.o.
Reviewed By:		melifaro, pauamma_gundo.com
Differential Revision: https://reviews.freebsd.org/D35314
MFC after:		2 weeks
2022-07-11 13:19:29 +02:00
Alan Somers 27dfb5f33f Correctly measure system load averages > 1024
The old fixed-point arithmetic used for calculating load averages had an
overflow at 1024.  So on systems with extremely high load, the observed
load average would actually fall back to 0 and shoot up again, creating
a kind of sawtooth graph.

Fix this by using 64-bit math internally, while still reporting the load
average to userspace as a 32-bit number.

Sponsored by:	Axcient
Reviewed by:	imp
Differential Revision: https://reviews.freebsd.org/D35134
2022-07-11 13:19:29 +02:00
Konstantin Belousov 0ed668df2c Add ifcap2 names for RXTLS4 and RXTLS6 interface capabilities
and corresponding nvlist capabilities name strings.

Reviewed by:	hselasky, jhb, kp (previous version)
Sponsored by:	NVIDIA Networking
MFC after:	3 weeks
Differential revision:	https://reviews.freebsd.org/D32551
2022-07-11 13:19:29 +02:00
Konstantin Belousov 361bd82a1f Kernel-side infrastructure to implement nvlist-based set/get ifcaps
Reviewed by:	hselasky, jhb, kp (previous version)
Sponsored by:	NVIDIA Networking
MFC after:	3 weeks
Differential revision:	https://reviews.freebsd.org/D32551
2022-07-11 13:19:29 +02:00
Richard Scheffenegger aeced2f48a tcp: LRO code to deal with all 12 TCP header flags
TCP per RFC793 has 4 reserved flag bits for future use. One
of those bits may be used for Accurate ECN.
This patch is to include these bits in the LRO code to ease
the extensibility if/when these bits are used.

Reviewed By: hselasky, rrs, #transport
Sponsored by:        NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D34127
2022-07-11 13:19:29 +02:00
Mike Karels a9a87c1921 kernel: deprecate Internet Class A/B/C
Hide historical Class A/B/C macros unless IN_HISTORICAL_NETS is defined;
define it for user level.  Define IN_MULTICAST separately from IN_CLASSD,
and use it in pf instead of IN_CLASSD.  Stop using class for setting
default masks when not specified; instead, define new default mask
(24 bits).  Warn when an Internet address is set without a mask.

MFC after:	1 month
Reviewed by:	cy
Differential Revision: https://reviews.freebsd.org/D32708
2022-07-11 13:19:29 +02:00
Peter Lei 73784208e3 tcp: socket option to get stack alias name
TCP stack sysctl nodes are currently inserted using the stack
name alias. Allow the user to get the current stack's alias to
allow for programatic sysctl access.

Obtained from:	Netflix
2022-07-11 13:19:29 +02:00
Randall Stewart 0464f26db0 tcp: Add hystart-plus to cc_newreno and rack.
TCP Hystart draft version -03:
https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-hystartplusplus

Is a new version of hystart that allows one to carefully exit slow start if the RTT
spikes too much. The newer version has a slower-slow-start so to speak that then
kicks in for five round trips. To see if you exited too early, if not into congestion avoidance.
This commit will add that feature to our newreno CC and add the needed bits in rack to
be able to enable it.

Reviewed by: tuexen
Sponsored by: Netflix Inc.
Differential Revision:	https://reviews.freebsd.org/D32373
2022-07-11 13:19:29 +02:00
Randall Stewart 57703f72c8 tcp: Add support for DSACK based reordering window to rack.
The rack stack, with respect to the rack bits in it, was originally built based
on an early I-D of rack. In fact at that time the TLP bits were in a separate
I-D. The dynamic reordering window based on DSACK events was not present
in rack at that time. It is now part of the RFC and we need to update our stack
to include these features. However we want to have a way to control the feature
so that we can, if the admin decides, make it stay the same way system wide as
well as via socket option. The new sysctl and socket option has the following
meaning for setting:

00 (0) - Keep the old way, i.e. reordering window is 1 and do not use DSACK bytes to add to reorder window
01 (1) - Change the Reordering window to 1/4 of an RTT but do not use DSACK bytes to add to reorder window
10 (2) - Keep the reordering window as 1, but do use SACK bytes to add additional 1/4 RTT delay to the reorder window
11 (3) - reordering window is 1/4 of an RTT and add additional DSACK bytes to increase the reordering window (RFC behavior)

The default currently in the sysctl is 3 so we get standards based behavior.
Reviewed by: tuexen
Sponsored by: Netflix Inc.
Differential Revision: https://reviews.freebsd.org/D31506
2022-07-11 13:19:29 +02:00
Andrew Gallatin 4bf5c259d3 tsleep: Add a PNOLOCK flag
Add a PNOLOCK flag so that, in the race circumstance where
wakeup races are externally mitigated, tsleep() can be
called with a sleep time of 0 without triggering an
an assertion.

Reviewed by: jhb
Sponsored by: Netflix
2022-07-11 13:19:29 +02:00
Roy Marples 356891f5e0 socket: Implement SO_RERROR
SO_RERROR indicates that receive buffer overflows should be handled as
errors. 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.

Reviewed by:	philip (network), kbowling (transport), gbe (manpages)
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26652
2022-07-11 13:19:29 +02:00
Kristof Provost 5260d10c98 pf: syncookie support
Import OpenBSD's syncookie support for pf. This feature help pf resist
TCP SYN floods by only creating states once the remote host completes
the TCP handshake rather than when the initial SYN packet is received.

This is accomplished by using the initial sequence numbers to encode a
cookie (hence the name) in the SYN+ACK response and verifying this on
receipt of the client ACK.

Reviewed by:	kbowling
Obtained from:	OpenBSD
MFC after:	1 week
Sponsored by:	Modirum MDPay
Differential Revision:	https://reviews.freebsd.org/D31138
2022-07-11 13:19:29 +02:00
Randall Stewart b89c5a3e88 tcp: Add a socket option to rack
so we can test various changes to the slop value in timers.

Timer_slop, in TCP, has been 200ms for a long time. This value dates back
a long time when delayed ack timers were longer and links were slower. A
200ms timer slop allows 1 MSS to be sent over a 60kbps link. Its possible that
lowering this value to something more in line with todays delayed ack values (40ms)
might improve TCP. This bit of code makes it so rack can, via a socket option,
adjust the timer slop.

Reviewed by: mtuexen
Sponsered by: Netflix Inc
Differential Revision:	https://reviews.freebsd.org/D30249
2022-07-11 13:19:29 +02:00
Richard Scheffenegger d4971b6464 tcp: SACK Lost Retransmission Detection (LRD)
Recover from excessive losses without reverting to a
retransmission timeout (RTO). Disabled by default, enable
with sysctl net.inet.tcp.do_lrd=1

Reviewed By: #transport, rrs, tuexen, #manpages
Sponsored by: Netapp, Inc.
Differential Revision: https://reviews.freebsd.org/D28931
2022-07-11 13:19:29 +02:00
Randall Stewart a00ca7bd54 This brings into sync FreeBSD with the netflix
versions of rack and bbr. This fixes several breakages (panics) since the
tcp_lro code was committed that have been reported. Quite a few new features
are now in rack (prefecting of DGP -- Dynamic Goodput Pacing among the
largest). There is also support for ack-war prevention. Documents comming soon
on rack..

Sponsored by:           Netflix
Reviewed by:		rscheff, mtuexen
Differential Revision:	https://reviews.freebsd.org/D30036
2022-07-11 13:19:29 +02:00
John Baldwin 8424d5c949 Use thunks for compat ioctls using struct ifgroupreq.
Reviewed by:	brooks, kib
Obtained from:	CheriBSD
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D29893
2022-07-11 13:19:29 +02:00
Konstantin Belousov 19a627f3a4 ioccom: define ioctl cmd value that can never be valid
Its use is for cases where some filler is needed for cmd, or we need an
indication that there were no cmd supplied, and so on.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29935
2022-07-11 13:19:29 +02:00
Thomas Munro 363527bb03 poll(2): Add POLLRDHUP.
Teach poll(2) to support Linux-style POLLRDHUP events for sockets, if
requested.  Triggered when the remote peer shuts down writing or closes
its end.

Reviewed by:	kib
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D29757
2022-07-11 13:19:29 +02:00
Michael Tuexen 85140fb378 tcp: add support for TCP over UDP
Adding support for TCP over UDP allows communication with
TCP stacks which can be implemented in userspace without
requiring special priviledges or specific support by the OS.
This is joint work with rrs.

Reviewed by:		rrs
Sponsored by:		Netflix, Inc.
MFC after:		1 week
Differential Revision:	https://reviews.freebsd.org/D29469
2022-07-11 13:19:29 +02:00
Bjoern A. Zeeb defb5ffed4 termios: add more speeds
A lot of small arm64 gadgets are using 1500000 as console speed.
While cu can perfectly deal with this some 3rd party software, e.g.,
comms/conserver-con add speeds based on B<n> being defined.
Having it defined here simplifies enhancing other software.

Obtained-from:	NetBSD sys/sys/termios.h 1.36
MFC-after:	2 weeks
Reviewed-by:	philip (,okayed by imp)
Differential Revision:	https://reviews.freebsd.org/D29209
2022-07-11 13:19:29 +02:00
Alexander V. Chernikov 3be97ff62c Revert "SO_RERROR indicates that receive buffer overflows"
Wrong version of the change was pushed inadvertenly.

This reverts commit 4a01b854ca5c2e5124958363b3326708b913af71.
2022-07-11 13:19:29 +02:00
Alexander V. Chernikov 2ba2e1e052 SO_RERROR indicates that receive buffer overflows
should be handled as errors. 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.
2022-07-11 13:19:29 +02:00
Alex Richardson 8054ce555f Expose clang's alignment builtins and use them for roundup2/rounddown2
This makes roundup2/rounddown2 type- and const-preserving and allows
using it on pointer types without casting to uintptr_t first. Not
performing pointer-to-integer conversions also helps the compiler's
optimization passes and can therefore result in better code generation.
When using it with integer values there should be no change other than
the compiler checking that the alignment value is a valid power-of-two.

I originally implemented these builtins for CHERI a few years ago and
they have been very useful for CheriBSD. However, they are also useful
for non-CHERI code so I was able to upstream them for Clang 10.0.

Rationale from the clang documentation:
Clang provides builtins to support checking and adjusting alignment
of pointers and integers. These builtins can be used to avoid relying
on implementation-defined behavior of arithmetic on integers derived
from pointers. Additionally, these builtins retain type information
and, unlike bitwise arithmetic, they can perform semantic checking on
the alignment value.

There is also a feature request for GCC, so GCC may also support it in
the future: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98641

Reviewed By:	brooks, jhb, imp
Differential Revision: https://reviews.freebsd.org/D28332
2022-07-11 13:19:29 +02:00
Gleb Smirnoff 5bc5689a6a Catch up with 6edfd179c86: mechanically rename IFCAP_NOMAP to IFCAP_MEXTPG.
Originally IFCAP_NOMAP meant that the mbuf has external storage pointer
that points to unmapped address.  Then, this was extended to array of
such pointers.  Then, such mbufs were augmented with header/trailer.
Basically, extended mbufs are extended, and set of features is subject
to change.  The new name should be generic enough to avoid further
renaming.
2022-07-11 11:52:46 +02:00
Konstantin Belousov 581bde91a5 Add tcgetwinsize(3) and tcsetwinsize(3) to termios
These functions get/set tty winsize respectively, and are trivial wrappers
around corresponding termio ioctls.

The functions are expected to be a part of POSIX.1 issue 8:
https://www.austingroupbugs.net/view.php?id=1151#c3856.
They are currently available in NetBSD and in musl libc.

PR:	251868
Submitted by:	Soumendra Ganguly <soumendraganguly@gmail.com>
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D27650
2022-07-11 11:52:46 +02:00
Andrew Gallatin c76896074b Filter TCP connections to SO_REUSEPORT_LB listen sockets by NUMA domain
In order to efficiently serve web traffic on a NUMA
machine, one must avoid as many NUMA domain crossings as
possible. With SO_REUSEPORT_LB, a number of workers can share a
listen socket. However, even if a worker sets affinity to a core
or set of cores on a NUMA domain, it will receive connections
associated with all NUMA domains in the system. This will lead to
cross-domain traffic when the server writes to the socket or
calls sendfile(), and memory is allocated on the server's local
NUMA node, but transmitted on the NUMA node associated with the
TCP connection. Similarly, when the server reads from the socket,
he will likely be reading memory allocated on the NUMA domain
associated with the TCP connection.

This change provides a new socket ioctl, TCP_REUSPORT_LB_NUMA. A
server can now tell the kernel to filter traffic so that only
incoming connections associated with the desired NUMA domain are
given to the server. (Of course, in the case where there are no
servers sharing the listen socket on some domain, then as a
fallback, traffic will be hashed as normal to all servers sharing
the listen socket regardless of domain). This allows a server to
deal only with traffic that is local to its NUMA domain, and
avoids cross-domain traffic in most cases.

This patch, and a corresponding small patch to nginx to use
TCP_REUSPORT_LB_NUMA allows us to serve 190Gb/s of kTLS encrypted
https media content from dual-socket Xeons with only 13% (as
measured by pcm.x) cross domain traffic on the memory controller.

Reviewed by:	jhb, bz (earlier version), bcr (man page)
Tested by: gonzo
Sponsored by:	Netfix
Differential Revision:	https://reviews.freebsd.org/D21636
2022-07-11 11:52:46 +02:00
Brooks Davis 70b6efc47d style(9): Correct whitespace in struct definitions
struct ifconf and struct ifreq use the odd style "struct<tab>foo".
struct ifdrv seems to have tried to follow this but was committed with
spaces in place of most tabs resulting in "struct<space><space>ifdrv".

MFC after:	3 days
2022-07-11 11:52:46 +02:00
Conrad Meyer 3f7425e8bb unix(4): Enhance LOCAL_CREDS_PERSISTENT ABI
As this ABI is still fresh (r367287), let's correct some mistakes now:

- Version the structure to allow for future changes
- Include sender's pid in control message structure
- Use a distinct control message type from the cmsgcred / sockcred mess

Discussed with:	kib, markj, trasz
Differential Revision:	https://reviews.freebsd.org/D27084
2022-07-11 11:52:46 +02:00
Conrad Meyer 55dec604f8 unix(4): Add SOL_LOCAL:LOCAL_CREDS_PERSISTENT
This option is intended to be semantically identical to Linux's
SOL_SOCKET:SO_PASSCRED.  For now, it is mutually exclusive with the
pre-existing sockopt SOL_LOCAL:LOCAL_CREDS.

Reviewed by:	markj (penultimate version)
Differential Revision:	https://reviews.freebsd.org/D27011
2022-07-11 11:52:46 +02:00
Warner Losh 1cb590ab48 Integrate 4.4BSD-Lite2 changes to IOC_* definitions
Bring in the long-overdue 4.4BSD-Lite2 rev 8.3 by cgd of
sys/ioccom.h. This uses UL suffix for the IOC_* constants so they
don't sign extend. Also bring in the handy diagram from NetBSD's
version of this file. This alters the 4.4BSD-Lite2 code slightly
in a way that's semantically the same but more compact.

This should stop the warnings from Chrome for bogus sign extension.

Reviewed by: kib@, jhb@
Differential Revision: https://reviews.freebsd.org/D26423
2022-07-11 11:52:46 +02:00
John Baldwin 5ea36d92e6 Support hardware rate limiting (pacing) with TLS offload.
- Add a new send tag type for a send tag that supports both rate
  limiting (packet pacing) and TLS offload (mostly similar to D22669
  but adds a separate structure when allocating the new tag type).

- When allocating a send tag for TLS offload, check to see if the
  connection already has a pacing rate.  If so, allocate a tag that
  supports both rate limiting and TLS offload rather than a plain TLS
  offload tag.

- When setting an initial rate on an existing ifnet KTLS connection,
  set the rate in the TCP control block inp and then reset the TLS
  send tag (via ktls_output_eagain) to reallocate a TLS + ratelimit
  send tag.  This allocates the TLS send tag asynchronously from a
  task queue, so the TLS rate limit tag alloc is always sleepable.

- When modifying a rate on a connection using KTLS, look for a TLS
  send tag.  If the send tag is only a plain TLS send tag, assume we
  failed to allocate a TLS ratelimit tag (either during the
  TCP_TXTLS_ENABLE socket option, or during the send tag reset
  triggered by ktls_output_eagain) and ignore the new rate.  If the
  send tag is a ratelimit TLS send tag, change the rate on the TLS tag
  and leave the inp tag alone.

- Lock the inp lock when setting sb_tls_info for a socket send buffer
  so that the routines in tcp_ratelimit can safely dereference the
  pointer without needing to grab the socket buffer lock.

- Add an IFCAP_TXTLS_RTLMT capability flag and associated
  administrative controls in ifconfig(8).  TLS rate limit tags are
  only allocated if this capability is enabled.  Note that TLS offload
  (whether unlimited or rate limited) always requires IFCAP_TXTLS[46].

Reviewed by:	gallatin, hselasky
Relnotes:	yes
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D26691
2022-07-11 11:52:46 +02:00
Andrey V. Elsukov b8e36b9251 Implement SIOCGIFALIAS.
It is lightweight way to check if an IPv4 address exists.

Submitted by:	Roy Marples
Reviewed by:	gnn, melifaro
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D26636
2022-07-11 11:52:46 +02:00
Richard Scheffenegger 3f0cc70c13 Add IP(V6)_VLAN_PCP to set 802.1 priority per-flow.
This adds a new IP_PROTO / IPV6_PROTO setsockopt (getsockopt)
option IP(V6)_VLAN_PCP, which can be set to -1 (interface
default), or explicitly to any priority between 0 and 7.

Note that for untagged traffic, explicitly adding a
priority will insert a special 801.1Q vlan header with
vlan ID = 0 to carry the priority setting

Reviewed by:	gallatin, rrs
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D26409
2022-07-11 11:52:46 +02:00
Konstantin Belousov ec997fae0e Fix typo.
Sponsored by:	Mellanox Technologies/NVIDIA Networking
MFC after:	3 days
2022-07-11 11:52:46 +02:00
Alexander V. Chernikov 48ba673ce9 Introduce scalable route multipath.
This change is based on the nexthop objects landed in D24232.

The change introduces the concept of nexthop groups.
Each group contains the collection of nexthops with their
 relative weights and a dataplane-optimized structure to enable
 efficient nexthop selection.

Simular to the nexthops, nexthop groups are immutable. Dataplane part
 gets compiled during group creation and is basically an array of
 nexthop pointers, compiled w.r.t their weights.

With this change, `rt_nhop` field of `struct rtentry` contains either
 nexthop or nexthop group. They are distinguished by the presense of
 NHF_MULTIPATH flag.
All dataplane lookup functions returns pointer to the nexthop object,
leaving nexhop groups details inside routing subsystem.

User-visible changes:

The change is intended to be backward-compatible: all non-mpath operations
 should work as before with ROUTE_MPATH and net.route.multipath=1.

All routes now comes with weight, default weight is 1, maximum is 2^24-1.

Current maximum multipath group width is statically set to 64.
 This will become sysctl-tunable in the followup changes.

Using functionality:
* Recompile kernel with ROUTE_MPATH
* set net.route.multipath to 1

route add -6 2001:db8::/32 2001:db8::2 -weight 10
route add -6 2001:db8::/32 2001:db8::3 -weight 20

netstat -6On

Nexthop groups data

Internet6:
GrpIdx  NhIdx     Weight   Slots                                 Gateway     Netif  Refcnt
1         ------- ------- ------- --------------------------------------- ---------       1
              13      10       1                             2001:db8::2     vlan2
              14      20       2                             2001:db8::3     vlan2

Next steps:
* Land outbound hashing for locally-originated routes ( D26523 ).
* Fix net/bird multipath (net/frr seems to work fine)
* Add ROUTE_MPATH to GENERIC
* Set net.route.multipath=1 by default

Tested by:	olivier
Reviewed by:	glebius
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D26449
2022-07-11 11:52:46 +02:00
Ed Maste 9dd91a8330 add SIOCGIFDATA ioctl
For interfaces that do not support SIOCGIFMEDIA (for which there are
quite a few) the only fallback is to query the interface for
if_data->ifi_link_state.  While it's possible to get at if_data for an
interface via getifaddrs(3) or sysctl, both are heavy weight mechanisms.

SIOCGIFDATA is a simple ioctl to retrieve this fast with very little
resource use in comparison.  This implementation mirrors that of other
similar ioctls in FreeBSD.

Submitted by:	Roy Marples <roy@marples.name>
Reviewed by:	markj
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D26538
2022-07-11 11:52:46 +02:00
Richard Scheffenegger 7b30b9f648 TCP: send full initial window when timestamps are in use
The fastpath in tcp_output tries to send out
full segments, and avoid sending partial segments by
comparing against the static t_maxseg variable.
That value does not consider tcp options like timestamps,
while the initial window calculation is using
the correct dynamic tcp_maxseg() function.

Due to this interaction, the last, full size segment
is considered too short and not sent out immediately.

Reviewed by:	tuexen
MFC after:	2 weeks
Sponsored by:	NetApp, Inc.
Differential Revision:	https://reviews.freebsd.org/D26478
2022-07-11 11:52:46 +02:00
Navdeep Parhar 43e76bafcd Add two new ifnet capabilities
for hw checksumming and TSO for VXLAN traffic.

These are similar to the existing VLAN capabilities.

Reviewed by:	kib@
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D25873
2022-07-11 11:52:46 +02:00
Konstantin Belousov 1306ff4c92 Support for userspace non-transparent superpages (largepages).
Created with shm_open2(SHM_LARGEPAGE) and then configured with
FIOSSHMLPGCNF ioctl, largepages posix shared memory objects guarantee
that all userspace mappings of it are served by superpage non-managed
mappings.

Only amd64 for now, both 2M and 1G superpages can be requested, the
later requires CPU feature.

Reviewed by:	markj
Tested by:	pho
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24652
2022-07-11 11:52:46 +02:00
Mark Johnston 1a5f14a0c5 Include the psind in data returned by mincore(2).
Currently we use a single bit to indicate whether the virtual page is
part of a superpage.  To support a forthcoming implementation of
non-transparent 1GB superpages, it is useful to provide more detailed
information about large page sizes.

The change converts MINCORE_SUPER into a mask for MINCORE_PSIND(psind)
values, indicating a mapping of size psind, where psind is an index into
the pagesizes array returned by getpagesizes(3), which in turn comes
from the hw.pagesizes sysctl.  MINCORE_PSIND(1) is equal to the old
value of MINCORE_SUPER.

For now, two bits are used to record the page size, permitting values
of MAXPAGESIZES up to 4.

Reviewed by:	alc, kib
Sponsored by:	Juniper Networks, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D26238
2022-07-11 11:52:46 +02:00
Mateusz Guzik d066d123f1 sys: clean up empty lines in .c and .h files 2022-07-11 11:52:46 +02:00
Mateusz Guzik 27fc846731 net: clean up empty lines in .c and .h files 2022-07-11 11:52:46 +02:00
Konstantin Belousov 941cda2c16 Add SOL_LOCAL symbolic constant for unix socket option level.
The constant seems to exists on MacOS X >= 10.8.

Requested by:	swills
Reviewed by:	allanjude, kevans
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D25933
2022-07-11 11:52:46 +02:00
Kyle Evans c95c267a46 shm_open2: Implement SHM_GROW_ON_WRITE
Lack of SHM_GROW_ON_WRITE is actively breaking Python's memfd_create tests,
so go ahead and implement it. A future change will make memfd_create always
set SHM_GROW_ON_WRITE, to match Linux behavior and unbreak Python's tests
on -CURRENT.

Reviewed by:	kib
Differential Revision:	https://reviews.freebsd.org/D25502
2022-07-11 11:52:46 +02:00
Wei Hu 1a840361e8 HyperV socket implementation for FreeBSD
This change adds Hyper-V socket feature in FreeBSD. New socket address
family AF_HYPERV and its kernel support are added.

Submitted by:	Wei Hu <weh@microsoft.com>
Reviewed by:	Dexuan Cui <decui@microsoft.com>
Relnotes:	yes
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D24061
2022-07-11 11:52:46 +02:00
John Baldwin 7293d1e7b6 Initial support for kernel offload of TLS receive.
- Add a new TCP_RXTLS_ENABLE socket option to set the encryption and
  authentication algorithms and keys as well as the initial sequence
  number.

- When reading from a socket using KTLS receive, applications must use
  recvmsg().  Each successful call to recvmsg() will return a single
  TLS record.  A new TCP control message, TLS_GET_RECORD, will contain
  the TLS record header of the decrypted record.  The regular message
  buffer passed to recvmsg() will receive the decrypted payload.  This
  is similar to the interface used by Linux's KTLS RX except that
  Linux does not return the full TLS header in the control message.

- Add plumbing to the TOE KTLS interface to request either transmit
  or receive KTLS sessions.

- When a socket is using receive KTLS, redirect reads from
  soreceive_stream() into soreceive_generic().

- Note that this interface is currently only defined for TLS 1.1 and
  1.2, though I believe we will be able to reuse the same interface
  and structures for 1.3.
2022-07-11 11:52:46 +02:00
Randall Stewart 1da65b8919 This change does a small prepratory step
in getting the latest rack and bbr in from the NF repo. When those come in the
OOB data handling will be fixed where Skyzaller crashes.

Differential Revision:	https://reviews.freebsd.org/D24575
2022-07-11 11:52:46 +02:00