Commit Graph

8306 Commits

Author SHA1 Message Date
Kirk McKusick
8b273fc833 By default, when doing incremental restores the restore program
overwrites an existing file rather than removing it and creating a
new file.  If the old and new version of the file both have extended
attributes and the extended attributes of the two versions of the
file are different, the result is that the new file ends up with
the union of the extended attributes of the old and new files.

To get the behavior of replacing the extended attributes rather
than augmenting them requires explicitly removing the old attributes
and then adding the new ones.

To get this behavior, the old file must be unlinked (which clears
out the old extended attributes).  Then the new file of the same
name must be created and the new extended attributes added to it.

This behavior can be obtained by specifying the -u flag when running
restore.  Rather than defaulting the -u option to on and possibly
breaking existing scripts using restore, this change simply notes
in the restore.8 manual page that the -u flag is recommended when
using restore on filesystems that contain extended attributes.

PR:                     216127
Reported by:            dewayne at heuristicsystems.com.au
Differential Revision:  https://reviews.freebsd.org/D9208
2017-01-22 17:49:14 +00:00
Andriy Voskoboinyk
c5bba9da5a net80211: allow to configure LDPC support
Tested with RTL8821AU, STA mode (Tx support only)

Reviewed by:	adrian
Differential Revision:	https://reviews.freebsd.org/D9268
2017-01-21 14:19:06 +00:00
Andriy Voskoboinyk
c1ae3717eb ifconfig(8): fix '-stbc' parameter name.
MFC after:	5 days
2017-01-20 22:41:16 +00:00
Alan Somers
77d9b0efa6 Misc Coverity fixes in camcontrol(8)
CID 1229913	Fix output of "camcontrol persist -i report_capabilities".
		The reported Persistent Reservation Types were wrong in all
		cases.
CID 1356029	Annotate the code so Coverity will know that this is a false
		positive.
CID 1366830	Fix a memory leak in "camcontrol timestamp -s"
CID 1366832	Fix a segfault that could be caused by bad drive firmware

Also, fix the man page entry for the "camcontrol epc state" command to match
what the code does.

Reviewed by:	ken, wblock
MFC after:	4 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D9239
2017-01-20 21:21:41 +00:00
Alan Somers
3e9662dcb4 Fix build of devd with GCC 4.2
Reported by:	olivier
Pointy-hat-to:	asomers
MFC after:	27 days
X-MFC-with:	312395
Sponsored by:	Spectra Logic Corp
2017-01-19 16:59:55 +00:00
Alan Somers
daa0d9dd7e Fix several Coverity CIDs in devd
CID 1362055, 1362054: File descriptor leaks during shutdown
CID 1362013: Potential null-termination fail with long network device names
CID 1362097: Uncaught exception during memory pressure
CID 1362017, 1362016: Unchecked errors, possibly resulting in weird behavior
	if two devd instances start at the same time.
CID 1362015:	Unchecked error that will probably never fail

Reported by:	Coverity
CID:	1362055 1362054 1362013 1362097 1362017 1362016 1362015
MFC after:	4 weeks
Sponsored by:	Spectra Logic Corp
2017-01-18 20:24:37 +00:00
Conrad Meyer
c9bf814804 restore(8): Handle extended attribute names correctly
UFS2 extended attribute names are not NUL-terminated.  Handle
appropriately.

Correct the EXTATTR_BASE_LENGTH() macro, which handled ea_namelength ==
one (mod eight) extended attributes incorrectly.

PR:		216127
Reported by:	dewayne at heuristicsystems.com.au
Reviewed by:	kib@
Sponsored by:	Dell EMC Isilon
Differential Revision:	https://reviews.freebsd.org/D9208
2017-01-18 18:16:57 +00:00
Hans Petter Selasky
f3e7afe2d7 Implement kernel support for hardware rate limited sockets.
- Add RATELIMIT kernel configuration keyword which must be set to
enable the new functionality.

- Add support for hardware driven, Receive Side Scaling, RSS aware, rate
limited sendqueues and expose the functionality through the already
established SO_MAX_PACING_RATE setsockopt(). The API support rates in
the range from 1 to 4Gbytes/s which are suitable for regular TCP and
UDP streams. The setsockopt(2) manual page has been updated.

- Add rate limit function callback API to "struct ifnet" which supports
the following operations: if_snd_tag_alloc(), if_snd_tag_modify(),
if_snd_tag_query() and if_snd_tag_free().

- Add support to ifconfig to view, set and clear the IFCAP_TXRTLMT
flag, which tells if a network driver supports rate limiting or not.

- This patch also adds support for rate limiting through VLAN and LAGG
intermediate network devices.

- How rate limiting works:

1) The userspace application calls setsockopt() after accepting or
making a new connection to set the rate which is then stored in the
socket structure in the kernel. Later on when packets are transmitted
a check is made in the transmit path for rate changes. A rate change
implies a non-blocking ifp->if_snd_tag_alloc() call will be made to the
destination network interface, which then sets up a custom sendqueue
with the given rate limitation parameter. A "struct m_snd_tag" pointer is
returned which serves as a "snd_tag" hint in the m_pkthdr for the
subsequently transmitted mbufs.

2) When the network driver sees the "m->m_pkthdr.snd_tag" different
from NULL, it will move the packets into a designated rate limited sendqueue
given by the snd_tag pointer. It is up to the individual drivers how the rate
limited traffic will be rate limited.

3) Route changes are detected by the NIC drivers in the ifp->if_transmit()
routine when the ifnet pointer in the incoming snd_tag mismatches the
one of the network interface. The network adapter frees the mbuf and
returns EAGAIN which causes the ip_output() to release and clear the send
tag. Upon next ip_output() a new "snd_tag" will be tried allocated.

4) When the PCB is detached the custom sendqueue will be released by a
non-blocking ifp->if_snd_tag_free() call to the currently bound network
interface.

Reviewed by:		wblock (manpages), adrian, gallatin, scottl (network)
Differential Revision:	https://reviews.freebsd.org/D3687
Sponsored by:		Mellanox Technologies
MFC after:		3 months
2017-01-18 13:31:17 +00:00
Conrad Meyer
db4fcadf52 "Buses" is the preferred plural of "bus"
Replace archaic "busses" with modern form "buses."

Intentionally excluded:
* Old/random drivers I didn't recognize
  * Old hardware in general
* Use of "busses" in code as identifiers

No functional change.

http://grammarist.com/spelling/buses-busses/

PR:		216099
Reported by:	bltsrc at mail.ru
Sponsored by:	Dell EMC Isilon
2017-01-15 17:54:01 +00:00
Alexander Motin
d1978d1b74 Make camcontrol cmd ... -i ... return only valid bytes.
Previously code ignored resid field and returned extra zeroes in case of
data underflow.  Now it returns only real bytes received from target.

MFC after:	2 weeks
2017-01-15 12:24:23 +00:00
Alexander Motin
36289c3336 Add checks for received mode page length.
If our buffer is too small, we may receive part of the page, and should
not try read/write past the end of the buffer.

Reported by:	Coverity
CID:		1368374, 1368375
MFC after:	1 week
2017-01-10 20:52:44 +00:00
Allan Jude
40d3e536c5 Add skein(3) front ends to the md5 manpage
Reported by:	emaste
2017-01-07 19:43:40 +00:00
Alexander Motin
54644e21e8 Make 'camcontrol modepage' support subpages.
MFC after:	2 weeks
2017-01-07 09:56:12 +00:00
Alexander Motin
26b1288f5a Make do_buff_decode() not read past the end of the buffer.
Abort format processing as soon as we have no enough data.

MFC after:	2 weeks
2017-01-07 09:33:11 +00:00
Adrian Chadd
e9bb7f9aa1 [ifconfig] add initial VHT (802.11ac) configuration and channel support to ifconfig.
This is very preliminary and mostly enough for me (with other patches)
to work on VHT support.

It adds:

* VHT20, VHT40 and VHT80 regulatory/band awareness
* VHT20, VHT40 and VHT80 channel configuration / population
* Parses vht channel specifications (eg ifconfig wlan0 create wlandev athp0 wlanmode monitor channel 36:vht/80)
* Configuration of VHT, VHT40, VHT80, VHT80+80, VHT160 channel
  width (IEEE80211_FVHT_VHT* flags in net80211)

TODO:

* No VHT80+80 or VHT160 channels yet - I don't yet have hardware, and I'm
  not yet sure how to support/populate VHT80+80 channels.
* No, I won't update the manpage until this is "more done", lest someone
  tries using vht and gets upset with me.
* No, I won't commit the regulatory database I'm testing with, so you'll
  just end up with no VHT channels ever populated.  Which is good, as there
  isn't an 11ac driver in-tree yet to try it with.
2017-01-07 02:07:05 +00:00
Dimitry Andric
a94c074d6a Fix clang 4.0.0 warnings about taking the address of a packed member of
struct ip in ping(8):

sbin/ping/ping.c:1684:53: error: taking address of packed member
'ip_src' of class or structure 'ip' may result in an unaligned pointer
value [-Werror,-Waddress-of-packed-member]
        (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_src.s_addr));
                                                           ^~~~~~~~~~~~~~~~~
sbin/ping/ping.c:1685:53: error: taking address of packed member
'ip_dst' of class or structure 'ip' may result in an unaligned pointer
value [-Werror,-Waddress-of-packed-member]
        (void)printf(" %s ", inet_ntoa(*(struct in_addr *)&ip->ip_dst.s_addr));
                                                           ^~~~~~~~~~~~~~~~~

MFC after:	3 days
2017-01-06 18:41:28 +00:00
Konstantin Belousov
1c32456953 Use type-independent formats for printing nlink_t and ino_t.
Extracted from:	ino64 work by gleb, mckusick
Discussed with:	mckusick
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-01-06 16:59:33 +00:00
Alan Somers
4a8c3cd0df Remove dead code in dhclient(8)
The offending code has been dead ever since the import from OpenBSD in
r195805.  OpenBSD later deleted that entire function.

Reported by:	Coverity
CID:		500059
MFC after:	4 weeks
Sponsored by:	Spectra Logic Corp
2017-01-04 18:13:05 +00:00
Andriy Voskoboinyk
3ddb14a5df sysctl(8): fix typename for uint32_t.
MFC after:	5 days.
2016-12-31 12:39:15 +00:00
Marius Strobl
6d3c367d9c Fix a bug in r272840; given that the optlen parameter of setsockopt(2)
is a 32-bit socklen_t, do_get3() passes the kernel to access the wrong
32-bit half on big-endian LP64 machines when simply casting the 64-bit
size_t optlen to a socklen_t pointer.
While at it and given that the intention of do_get3() apparently is to
hide/wrap the fact that socket options are used for communication with
ipfw(4), change the optlen parameter of do_set3() to be of type size_t
and as such more appropriate than uintptr_t, too.

MFC after:	3 days
2016-12-28 23:34:28 +00:00
Luiz Otavio O Souza
1e93588b1d Fix the parsing of NPt binat rules.
In this specific case the src address can be set to any, which was not
accepted prior to this commit.

pfSense bug report:	https://redmine.pfsense.org/issues/6985
Reviewed by:	kp
Obtained from:	pfSense
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC (Netgate)
2016-12-28 16:16:48 +00:00
Brooks Davis
98acad147a Convert tunefs use to nmount(2)
Reviewed by:	jhb, emaste
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8822
2016-12-22 00:35:12 +00:00
Brooks Davis
b32720888a Add a free_iovec() function to reset iovec's.
The primary purpose is to call nmount() in a loop with new iovec's so
free_iovec takes arguments by reference and resets their values.

Reviewed by:	cem
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8513
2016-12-14 21:26:43 +00:00
Andriy Voskoboinyk
bdad1bcea4 ifconfig: do not truncate SSID in verbose mode.
Fix 32-character SSID abbreviation for 'ifconfig -v wlan0 scan' command.

PR:		215301
Submitted by:	<ms-freebsd-bugzilla@stoffnet.at>
MFC after:	4 days
2016-12-14 21:12:43 +00:00
Christian Brueffer
c519c3c308 Language and mdoc cleanup. 2016-12-13 18:15:11 +00:00
Enji Cooper
f2a12bce27 Cut to the chase and just call free instead of free(x) + x = NULL
NULLing out x wasn't required as the memory was immediately scribbled
over with strdup in the following call.

MFC after:	1 week
Submitted by:	imp
2016-12-10 23:58:14 +00:00
Enji Cooper
110559ba69 free/NULL out variables prior to calling strdup to avoid leaking memory
if arguments are specified more than once with "camcontrol timestamp".

CID:		1366829, 1366831
MFC after:	1 week
2016-12-10 23:26:34 +00:00
Konrad Witaszczyk
480f31c214 Add support for encrypted kernel crash dumps.
Changes include modifications in kernel crash dump routines, dumpon(8) and
savecore(8). A new tool called decryptcore(8) was added.

A new DIOCSKERNELDUMP I/O control was added to send a kernel crash dump
configuration in the diocskerneldump_arg structure to the kernel.
The old DIOCSKERNELDUMP I/O control was renamed to DIOCSKERNELDUMP_FREEBSD11 for
backward ABI compatibility.

dumpon(8) generates an one-time random symmetric key and encrypts it using
an RSA public key in capability mode. Currently only AES-256-CBC is supported
but EKCD was designed to implement support for other algorithms in the future.
The public key is chosen using the -k flag. The dumpon rc(8) script can do this
automatically during startup using the dumppubkey rc.conf(5) variable.  Once the
keys are calculated dumpon sends them to the kernel via DIOCSKERNELDUMP I/O
control.

When the kernel receives the DIOCSKERNELDUMP I/O control it generates a random
IV and sets up the key schedule for the specified algorithm. Each time the
kernel tries to write a crash dump to the dump device, the IV is replaced by
a SHA-256 hash of the previous value. This is intended to make a possible
differential cryptanalysis harder since it is possible to write multiple crash
dumps without reboot by repeating the following commands:
# sysctl debug.kdb.enter=1
db> call doadump(0)
db> continue
# savecore

A kernel dump key consists of an algorithm identifier, an IV and an encrypted
symmetric key. The kernel dump key size is included in a kernel dump header.
The size is an unsigned 32-bit integer and it is aligned to a block size.
The header structure has 512 bytes to match the block size so it was required to
make a panic string 4 bytes shorter to add a new field to the header structure.
If the kernel dump key size in the header is nonzero it is assumed that the
kernel dump key is placed after the first header on the dump device and the core
dump is encrypted.

Separate functions were implemented to write the kernel dump header and the
kernel dump key as they need to be unencrypted. The dump_write function encrypts
data if the kernel was compiled with the EKCD option. Encrypted kernel textdumps
are not supported due to the way they are constructed which makes it impossible
to use the CBC mode for encryption. It should be also noted that textdumps don't
contain sensitive data by design as a user decides what information should be
dumped.

savecore(8) writes the kernel dump key to a key.# file if its size in the header
is nonzero. # is the number of the current core dump.

decryptcore(8) decrypts the core dump using a private RSA key and the kernel
dump key. This is performed by a child process in capability mode.
If the decryption was not successful the parent process removes a partially
decrypted core dump.

Description on how to encrypt crash dumps was added to the decryptcore(8),
dumpon(8), rc.conf(5) and savecore(8) manual pages.

EKCD was tested on amd64 using bhyve and i386, mipsel and sparc64 using QEMU.
The feature still has to be tested on arm and arm64 as it wasn't possible to run
FreeBSD due to the problems with QEMU emulation and lack of hardware.

Designed by:	def, pjd
Reviewed by:	cem, oshogbo, pjd
Partial review:	delphij, emaste, jhb, kib
Approved by:	pjd (mentor)
Differential Revision:	https://reviews.freebsd.org/D4712
2016-12-10 16:20:39 +00:00
Warner Losh
40975988cb Implement Intel's log page 0xc1 (Read Command Latency Log) and page
0xc1 (Write Command Latency Log).

Sponsored By: Netflix, Inc
2016-12-09 23:37:14 +00:00
Warner Losh
f1b276bec8 Fix Typo 2016-12-07 21:47:14 +00:00
Eric van Gyzen
2830098671 Add rcorder-visualize.sh, which generates graphviz from rc.d scripts
This is imported from NetBSD.  The author--Joerg Sonnenberger--agreed
to apply a two-clause BSD license, just so the license was clear.

This source tree location matches NetBSD, and is the first place someone
might look for such a tool.

Obtained from:	Joerg Sonnenberger via NetBSD
MFC after:	3 days
Sponsored by:	Dell EMC
2016-12-06 15:49:39 +00:00
Adrian Chadd
a1fa23910c [camcontrol] init ts=0 to quieten gcc.
It "looks" like ts is set to something on success, and not modified on
error.

Checked on IRC with: cem
2016-12-03 20:35:39 +00:00
Warner Losh
5619c99fb3 Flag the vendor specific pages as such. This allows different decoding
for the same page number as different vendors encode vendor specific
pages differently.
2016-12-02 14:44:45 +00:00
Kenneth D. Merry
28db0a5e74 Add SCSI REPORT TIMESTAMP and SET TIMESTAMP support.
This adds support to camcontrol(8) and libcam(3) for getting and setting
the time on SCSI protocol drives.  This is more commonly found on tape
drives, but is a SPC (SCSI Primary Commands) command, and may be found
on any device that speaks SCSI.

The new camcontrol timestamp subcommand allows getting the current device
time or setting the time to the current system time or any arbitrary time.

sbin/camcontrol/Makefile:
	Add timestamp.c.

sbin/camcontrol/camcontrol.8:
	Document the new timestamp subcommand.

sbin/camcontrol/camcontrol.c:
	Add the timestamp subcommand to camcontrol.

sbin/camcontrol/camcontrol.h:
	Add the timestamp() function prototype.

sbin/camcontrol/timestamp.c:
	Timestamp setting and reporting functionality.

sys/cam/scsi/scsi_all.c:
	Add two new CCB building functions, scsi_set_timestamp() and
	scsi_report_timestamp().  Also, add a new helper function,
	scsi_create_timestamp().

sys/cam/scsi/scsi_all.h:
	Add CDB and parameter data for the the set and report timestamp
	commands.

	Add function declarations for the new CCB building and helper
	functions.

Submitted by:	Sam Klopsch
Sponsored by:	Spectra Logic
MFC After:	2 weeks
2016-12-01 22:20:27 +00:00
Warner Losh
4d00d13c3e Simplify test. 2016-12-01 04:35:38 +00:00
Alexander Motin
b6fe583c55 Add gmirror create subcommand, alike to gstripe, gconcat, etc.
It is quite specific mode of operation without storing on-disk metadata.
It can be useful in some cases in combination with some external control
tools handling mirror creation and disks hot-plug.

MFC after:	2 weeks
Sponsored by:	iXsystems, Inc.
2016-11-30 09:27:08 +00:00
Oleg Bulyzhin
c99ebe6c01 Fix 'ipfw delete set N':
do not emit meaningless 'rule 0 not found' warning if set was already empty.

MFC after:	1 week
2016-11-29 10:43:58 +00:00
Brooks Davis
f2c99d387c Allocate a struct ifreq rather than using a (wrong) computed size for
the BIOCSETIF ioctl.

The kernel always copies an entire struct ifreq and IPv4 addresses will
always fit in an ifreq.

On systems with pointers larger than 64-bits, the computed size will be
less than the size of struct ifreq, potentially resulting in the kernel
attempting to copyin memory from outside the allocation.

Reviewed by:	jhb
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8445
2016-11-22 22:45:15 +00:00
Rick Macklem
49a8bad7d6 Modify umount so that it does not do an Unmount RPC for NFSv4 mounts
and uses TCP for the Unmount RPC if the mount is over TCP.
Without this patch, umount does an Unmount RPC over UDP for all NFS mounts.

Suggested by:	cperciva
Reviewed by:	cperciva
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D8503
2016-11-19 23:58:50 +00:00
Warner Losh
4e44c386ff i386 turns out to not have __uint128_t. So confusingly use 64-bit math
instead. Since we're little endian, we can get away with it. Also,
since the counters in quesitons would require billions of iops for
tens of billions of seconds to overflow, and since such data rates are
unlikely for people using i386 for a while, that's OK. The fastest
cards today can't do even a million IOPs.

Noticed by: dim@
Sponsored by: Netflix, Inc
2016-11-19 21:46:13 +00:00
Warner Losh
9caeb4305d Decode the Intel-specific Additional SMART data page (0xca) and print
it in human readable form. Include a pointer to the public spec that
was followed to implement this in the code. Samsung also implements
page 0xca on some of their drives, but the format is slighly
different, so the code skips printing zero keys. Samsung's log page
has additional, unknown data after the end of Intel defined data which
isn't displayed.

Supported by: Netfix, Inc
2016-11-19 17:13:12 +00:00
Warner Losh
0cf14228c4 Implement HGST Log page 0xc1, as documented in the HGST SN100 and
SN150 product manuals. Subpage 0x32 is documented, but not implemented.

Sponsored by: Netflix, Inc
2016-11-19 17:13:08 +00:00
Warner Losh
ab1dd0917b Print Intel's expanded Temperature log page.
Sponsored by: Netflix, Inc
2016-11-19 17:13:03 +00:00
Warner Losh
dc58cdf95e Expand the SMART / Health Information Log Page (Page 02) printout
based on NVM Express 1.2.1 Standard.

Sponsored by: Netflix, Inc
2016-11-19 17:12:49 +00:00
Warner Losh
33a099d2e5 Print numbers instead of hex values for smart data. The full 128-bit
number is printed, even though you'd need like a billion IOPs for a 10
billion seconds to overflow the 64-bit counters (~300 years).

Sponsored by: Netflix, Inc
2016-11-19 17:12:44 +00:00
Warner Losh
cc63e8e6ab Use a table for pages we know the size of. We have a special case for
the error log since it isn't a fixed size.

Sponsored by: Netflix, Inc
2016-11-19 17:12:39 +00:00
Warner Losh
fbc3f2995e Remove check for valid log pages. Let the drive tell us which pages
are valid or not. While many pages are reserved in the standard, that
doesn't make them invalid and future versions of the standard may
define then.

Sponsored by: Netflix, Inc
2016-11-19 17:12:28 +00:00
Adrian Chadd
53414bce1b [ifconfig] remove now duplicate IEEE80211_C_BITS definition; it's now in _ieee80211.h .
Reviewed by:	avos
Differential Revision:	https://reviews.freebsd.org/D8553
2016-11-18 21:12:36 +00:00
Luiz Otavio O Souza
08f58fe456 Zero etherswitch_vlangroup structure before doing partial assignments.
MFC after:	3 days
Sponsored by:	Rubicon Communications, LLC (Netgate)
2016-11-17 19:02:25 +00:00
Andrey V. Elsukov
757b5d8792 Add missing support of named lookup tables to the IPv6 code.
PR:		214419
MFC after:	1 week
Sponsored by:	Yandex LLC
2016-11-15 07:13:16 +00:00