Commit Graph

243525 Commits

Author SHA1 Message Date
Konstantin Belousov
10ae16c7fe Fix stack grow for init.
During early stages of kern_exec(), including strings copyout,
p_textvp for init is NULL.  This prevented stack grow from working for
init execution.

Without stack gap enabled, initial stack segment size is enough for
strings passed by kernel to init.  With the gap enabled, the used
address might fall out of the initial segment, which kills init.

Exclude initproc from the check for contexts which should not cause
stack grow in the target map.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2019-08-08 16:48:19 +00:00
Konstantin Belousov
b706be23b4 Update comment explaining create_init().
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2019-08-08 16:42:53 +00:00
Justin Hibbits
e6bb926199 mips: Fix register target for SP setting in libproc
Copy-paste-o from r233042
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D21188
2019-08-08 16:37:32 +00:00
Conrad Meyer
90f4bdbe91 import zstd 1.4.2 2019-08-08 15:37:56 +00:00
Conrad Meyer
fa94c7381a import zstd 1.4.1 2019-08-08 15:30:49 +00:00
Warner Losh
cca7237972 Add TCP_RFC7413
We should be linting this This isn't enabled on all platforms, but compiles on
them all.

Noticed by: jhb in another review
2019-08-08 15:11:37 +00:00
Ed Maste
8279d4b711 armv8crypto: add missing unlock for session (after r336439)
Attempts to use cryptodev (e.g. tests at /usr/src/tests/sys/opencrypto
with armv8crypto added to the module lists) were causing a panic.

Submitted by:	Greg V <greg_unrelenting.technology>
Differential Revision:	https://reviews.freebsd.org/D21012
2019-08-08 14:34:53 +00:00
Tom Jones
deb2aead4a Rename IPPROTO 33 from SEP to DCCP
IPPROTO 33 is DCCP in the IANA Registry:
https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml

IPPROTO_SEP was added about 20 years ago in r33804. The entries were added
straight from RFC1700, without regard to whether they were used.

The reference in RFC1700 for SEP is '[JC120] <mystery contact>', this is an
indication that the protocol number was probably in use in a private network.

As RFC1700 is no longer the authoritative list of internet numbers and that
IANA assinged 33 to DCCP in RFC4340, change the header to the actual
authoritative source.

Reviewed by:	Richard Scheffenegger, bz
Approved by:	bz (mentor)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D21178
2019-08-08 11:43:09 +00:00
Bjoern A. Zeeb
1540a98e36 frag6: move public structure into file local space.
Move ip6asfrag and the accompanying IP6_REASS_MBUF macro from
ip6_var.h into frag6.c as they are not used outside frag6.c.
Sadly struct ip6q is all over the mac framework so we have to
leave it public.

This reduces the public KPI space.

MFC after:		3 months
X-MFC:			possibly MFC the #define only to stable branches
Sponsored by:		Netflix
2019-08-08 10:59:54 +00:00
Bjoern A. Zeeb
5778b399f1 frag6.c: cleanup varaibles and return statements.
Consitently put () around return values.
Do not assign variables at the time of variable declaration.
Sort variables.  Rename ia to ia6, remove/reuse some variables used only
once or twice for temporary calculations.

No functional changes intended.

MFC after:		3 months
Sponsored by:		Netflix
2019-08-08 10:15:47 +00:00
Bjoern A. Zeeb
23d374aa14 frag6.c: initial comment and whitespace cleanup.
Cleanup some comments (start with upper case, ends in punctuation,
use width and do not consume vertical space).  Update comments to
RFC8200.  Some whitespace changes.

No functional changes.

MFC after:		3 months
Sponsored by:		Netflix
2019-08-08 09:42:57 +00:00
Michael Tuexen
47d16bf9c1 Fix a typo.
Submitted by:		Thomas Dreibholz
MFC after:		1 week
2019-08-08 08:23:27 +00:00
Xin LI
22bbc4b242 Convert DDB_CTF to use newer version of ZLIB.
PR:		229763
Submitted by:	Yoshihiro Ota <ota j email ne jp>
Differential Revision:	https://reviews.freebsd.org/D21176
2019-08-08 07:27:49 +00:00
Xin LI
92e9c0608b Update bxe(4) to use new zlib.
PR:		229763
Submitted by:	Yoshihiro Ota <ota j email ne jp>
Differential Revision:	https://reviews.freebsd.org/D21175
2019-08-08 06:30:12 +00:00
Xin LI
2b0cabbdae Update geom_uzip to use new zlib:
- Use new zlib headers;
 - Removed z_alloc and z_free to use the common sys/dev/zlib version.
 - Replace z_compressBound with compressBound from zlib.

While there, limit LZMA CFLAGS to apply only for g_uzip_lzma.c.

PR:		229763
Submitted by:	Yoshihiro Ota <ota j email ne jp> (with changes,
		bugs are mine)
Differential Revision:	https://reviews.freebsd.org/D20271
2019-08-08 06:27:39 +00:00
Alan Cox
56e66ce802 Ordinarily, during a superpage promotion or demotion within a pmap, the
pmap's lock ensures that other operations on the pmap don't observe the
old mapping being broken before the new mapping is established.  However,
pmap_kextract() doesn't acquire the kernel pmap's lock, so it may observe
the broken mapping.  And, if it does, it returns an incorrect result.

This revision implements a lock-free solution to this problem in
pmap_update_entry() and pmap_kextract() because pmap_kextract() can't
acquire the kernel pmap's lock.

Reported by:	andrew, greg_unrelenting.technology
Reviewed by:	andrew, markj
Tested by:	greg_unrelenting.technology
X-MFC with:	r350579
Differential Revision:	https://reviews.freebsd.org/D21169
2019-08-08 06:26:34 +00:00
Conrad Meyer
47fec6f3b5 r350739 try #2
For some inexplicable reason, C++ compilers reject the -Wno- flag, and also
(ab)use CWARNFLAGS.

Reported by:	imp
2019-08-08 04:29:46 +00:00
Conrad Meyer
be3ab1876e Disable useless -Wformat-zero-length
It is part of -Wformat, which is enabled by -Wall.  Empty format strings are
well defined and it is perfectly reasonable to expect them in a formatting
interface.
2019-08-08 03:27:46 +00:00
Justin Hibbits
937e8f20af powerpc/pmap: Minor optimizations to 64-bit booke pmap
Don't recalculate the VM page of the page table pages, just pass them down
to free.  Also, use the pmap's page zero function instead of bzero().
2019-08-08 03:18:35 +00:00
Justin Hibbits
ca05fff090 Change autounmountd(8) to use time_t for duration instead of double
Summary:
autounmountd(8) uses doubles to handle mount time durations.  However,
it must convert to integer types, time_t in particular, to do anything
meaningful.  Additionally, even though it's a floating-point value in
seconds, the sub-seconds component is never used, so it's unnecessary.

Switching type to time_t fixes an assertion on powerpc64, which checks
that a sleep value that's not -1.0 is greater than 0.  On powerpc64, it
happens that the value of -1.0 gets loaded as a float (perhaps a bug in
gcc), but gets compared to a double.  This compares as false, so follows
through the 'sleep != -1.0' path, and fails the assert.  Since the
sub-second component isn't used in the double, just drop it and deal
with whole-integer seconds.

Reviewed by:	trasz
Differential Revision: https://reviews.freebsd.org/D21109
2019-08-08 03:16:32 +00:00
Conrad Meyer
7d0658ad55 Fix !DDB kernel configurations after r350713
KDB is standard and the kdb_active variable is always available.  So,
de-conditionalize inclusion of sys/kdb.h in kern_sysctl.c.

Reported by:	Michael Butler <imb AT protected-networks.net>
X-MFC-With:	r350713
Sponsored by:	Dell EMC Isilon
2019-08-08 01:37:41 +00:00
Li-Wen Hsu
26a6feda9c Follow r350693 to add a link for sbuf_nl_terminate(9)
Sponsored by:	The FreeBSD Foundation
2019-08-08 00:51:17 +00:00
Conrad Meyer
088c17b46b ddb(4): Add 'sysctl' command
Implement `sysctl` in `ddb` by overriding `SYSCTL_OUT`.  When handling the
req, we install custom ddb in/out handlers.  The out handler prints straight
to the debugger, while the in handler ignores all input.  This is intended
to allow us to print just about any sysctl.

There is a known issue when used from ddb(4) entered via 'sysctl
debug.kdb.enter=1'.  The DDB mode does not quite prevent all lock
interactions, and it is possible for the recursive Giant lock to be unlocked
when the ddb(4) 'sysctl' command is used.  This may result in a panic on
return from ddb(4) via 'c' (continue).  Obviously, this is not a problem
when debugging already-paniced systems.

Submitted by:	Travis Lane (formerly: <travis.lane AT isilon.com>)
Reviewed by:	vangyzen (earlier version), Don Morris <dgmorris AT earthlink.net>
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D20219
2019-08-08 00:42:29 +00:00
Andriy Gapon
09b238e7c9 rc.8: fix a typo in r350701
I wronlgy expected that igor(1) checks spelling of all words.

MFC after:	1 week
2019-08-07 21:20:25 +00:00
Andriy Gapon
ce6c81b9d8 rc.8: add a reference to service(8)
While here:
- use Xr macro for a reference to sysrc(8)
- clarify that rc.shutdown invokes rc.d scripts with "faststop" argument

MFC after:	1 week
2019-08-07 21:07:59 +00:00
Li-Wen Hsu
84922a5d4c Get configuration variable with default value for not breaking default setting
Reported by:	markj
Sponsored by:	The FreeBSD Foundation
2019-08-07 21:02:23 +00:00
Alan Somers
0bf48626aa Remove the fuse.ko -> fusefs.ko symlink
On FreeBSD 13.0, the fuse driver will always be known as fusefs. The
backwards compatibility symlink will still be used for stable/12 and
stable/11, though.

Reported by:	jhibbits
Reviewed by:	rgrimes, imp, cem
MFC after:	Never
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21181
2019-08-07 20:28:27 +00:00
Dimitry Andric
aa8d126847 Fix a possible segfault in wcsxfrm(3) and wcsxfrm_l(3).
If the length of the source wide character string, passed in via the
"size_t n" parameter, is set to zero, the function should only return
the required length for the destination wide character string.  In this
case, it should *not* attempt to write to the destination, so the "dst"
parameter is permitted to be NULL.

However, when the internally called _collate_wxfrm() function returns an
error, such as when using the "C" locale, as a fallback wcscpy(3) or
wcsncpy(3) are used.  But if the input length is zero, wcsncpy(3) will
be called with a length of -1!  If the "dst" parameter is NULL, this
will immediately result in a segfault, or if "dst" is a valid pointer,
it will most likely result in unexpectedly overwritten memory.

Fix this by explicitly checking for an input length greater than zero,
before calling wcsncpy(3).

Note that a similar situation does not occur in strxfrm(3), the plain
character version of this function, as it uses strlcpy(3) for the error
case.  The strlcpy(3) function does not write to the destination if the
input length is zero.

MFC after:	1 week
2019-08-07 20:13:43 +00:00
Mark Johnston
13a7c4d478 Use designated initializers for vmm_ops.
MFC after:	3 days
2019-08-07 19:45:44 +00:00
Mariusz Zaborski
9509775394 cap_filergs: limit size of the file name
The limit of the name in fileargs is twice the size of the MAXPATH.
The nvlist will not add an element with the longer name.
We can detect at this point that the path is too big, and simple return
the same error as open(2) would.

PR:		239700
Reported by:	markj
Tested by:	markj
MFC after:	2 weeks
2019-08-07 19:30:33 +00:00
Conrad Meyer
ac03832ef3 GEOM: Reduce unnecessary log interleaving with sbufs
Similar to what was done for device_printfs in r347229.

Convert g_print_bio() to a thin shim around g_format_bio(), which acts on an
sbuf; documented in g_bio.9.

Reviewed by:	markj
Discussed with:	rlibby
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D21165
2019-08-07 19:28:35 +00:00
Conrad Meyer
76cb1112da sbuf(9): Add sbuf_nl_terminate() API
The API is used to gracefully terminate text line(s) with a single \n.  If
the formatted buffer was empty or already ended in \n, it is unmodified.
Otherwise, a newline character is appended to it.  The API, like other
sbuf-modifying routines, is only valid while the sbuf is not FINISHED.

Reviewed by:	rlibby
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D21030
2019-08-07 19:27:14 +00:00
Conrad Meyer
d23813cdb9 sbuf(9): Refactor sbuf_newbuf into sbuf_new
Code flow was somewhat difficult to read due to the combination of
multiple return sites and the 4x possible dynamic constructions of an
sbuf.  (Future consideration: do we need all 4?)  Refactored slightly to
improve legibility.

No functional change.

Sponsored by:	Dell EMC Isilon
2019-08-07 19:25:56 +00:00
Conrad Meyer
71db411eb6 sbuf(9): Add NOWAIT dynamic buffer extension mode
The goal is to avoid some kinds of low-memory deadlock when formatting
heap-allocated buffers.

Reviewed by:	vangyzen
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D21015
2019-08-07 19:23:07 +00:00
Gleb Smirnoff
29bf090e15 resource.h is sufficient here, no need for resoursevar.h. 2019-08-07 18:32:01 +00:00
Edward Tomasz Napierala
63722e5212 Add cdceem(4) driver, for virtual ethernet devices compliant
with Communication Device Class Ethernet Emulation Model (CDC EEM).
The driver supports both the device, and host side operation; there
is a new USB template (#11) for the former.

This enables communication with virtual USB NIC provided by iLO 5,
as found in new HPE Proliant servers.

Reviewed by:	hselasky
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	Hewlett Packard Enterprise
2019-08-07 18:14:45 +00:00
Konstantin Belousov
c5fb9d20cd More places to clarify the robustness guarantees.
Wording submitted by:	Martin Simmons <martin@lispworks.com>
MFC after:	3 days
2019-08-07 17:51:40 +00:00
Konstantin Belousov
be50763fe0 Clarify the robustness guarantees.
Wording submitted by:	Martin Simmons <martin@lispworks.com>
MFC after:	3 days
2019-08-07 17:46:07 +00:00
Kirk McKusick
47d3e2f83b Correct the location of the first backup superblock in fsck_ffs.8.
Make a note in the newfs.8 manual page to update the first backup
superblock location when changing the default fragment size for
the filesystem.

Reported by:  O. Hartmann
2019-08-07 16:56:00 +00:00
Alan Somers
b0927a31dd Update RELNOTES for the fusefs rewrite
MFC after:	Never
Sponsored by:	The FreeBSD Foundation
2019-08-07 16:42:34 +00:00
Alan Somers
596a186627 RELNOTES: fix formatting from r350482
MFC after:	Never
Sponsored by:	The FreeBSD Foundation
2019-08-07 16:24:08 +00:00
Mark Johnston
bbce101753 Merge r3780 from elftoolchain.
Adjust argc and argv by optind before using them.  This slightly
simplifies the code.  No functional change intended.

MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21079
2019-08-07 16:22:25 +00:00
Warner Losh
ecdc19b50c Enable nvme on aarch64
Don't mark nvme as broken on aarch64. It compiles, at least, and people are
testing it out. This only enables the userland parts of the nvme stack.

Submitted by: greg at unrelenting technologies
Differential Revision: https://reviews.freebsd.org/D21168
2019-08-07 16:19:06 +00:00
Alexander Motin
b7e08f9305 Make GCC happy about math in r350676.
MFC after:	1 week
2019-08-07 15:05:08 +00:00
Alexander Motin
0912877616 Make camcontrol modepage support block descriptors.
It allows to read and write block descriptors alike to mode page parameters.
It allows to change block size or short-stroke HDDs or overprovision SSDs.
Depenting on -P parameter the change can be either persistent or till reset.
In case of block size change device may need reformat after the setting.
In case of SSD overprovisioning format or sanitize may be needed to really
free the flash.

During implementation appeared that csio_encode_visit() can not handle
integers of more then 4 bytes, that makes 8-byte LBA handling awkward.
I had to split it into two 4-byte halves now.

MFC after:	1 week
Relnotes:	yes
Sponsored by:	iXsystems, Inc.
2019-08-07 14:45:10 +00:00
Hans Petter Selasky
3194b27014 Correct PCI device ID for XHCI USB controller.
Submitted by:	Dmitry Luhtionov <dmitryluhtionov@gmail.com>
MFC after:	1 week
Sponsored by:	Mellanox Technologies
2019-08-07 13:35:13 +00:00
Emmanuel Vadot
0f6efb4445 ofw: ofw_reg_to_paddr: Use a 256 static array for the cell
Some hardware needs more than 32, bump this value.

We cannot use the _alloc for of getencprop as this function is called
too early in the boot before pmap is initialized and we only have
2k of stack when cninit is called.

Discussed with:     ian
2019-08-07 13:13:16 +00:00
Emmanuel Vadot
216cad16b6 arm: dts: am33xx: Fix the region for uart0
The region for uart0 is declared to be 0x2000 in size but the parent
node only declare 0x1000.
As the parent only declare a size of 0x1000 in the ranges for it's children
this cause the device to not be mappable.

https://patchwork.kernel.org/patch/11056769/
2019-08-07 13:11:53 +00:00
Mark Johnston
1966967151 readelf: Close input files when done with them.
The low fd limit used by poudriere exposed an odd failure mode in
cap_fileargs (used by readelf as of r350516).  In particular, when
the limit was hit, both the main process and casper service would
block on their shared socket, waiting forever for the other to send a
message.

Reported by:	zeising
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
2019-08-07 03:14:45 +00:00
Xin LI
a15cb219c6 Expose zlib's utility functions in Z_SOLO library when building kernel.
This allows kernel code to reuse zlib's implementation.

PR:		229763
Reviewed by:	Yoshihiro Ota <ota j email ne jp>
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D21156
2019-08-07 01:41:17 +00:00