Commit Graph

89 Commits

Author SHA1 Message Date
Tycho Nightingale
a4ba650262 Reorder includes to placate MIPS build.
Reported by:	markj
Sponsored by:	Dell EMC Isilon
2017-03-30 20:42:16 +00:00
Tycho Nightingale
86be94fca3 Add support for capturing 'struct ptrace_lwpinfo' for signals
resulting in a process dumping core in the corefile.

Also extend procstat to view select members of 'struct ptrace_lwpinfo'
from the contents of the note.

Sponsored by:	Dell EMC Isilon
2017-03-30 18:21:36 +00:00
Gleb Smirnoff
cc65eb4e79 Hide struct inpcb, struct tcpcb from the userland.
This is a painful change, but it is needed.  On the one hand, we avoid
modifying them, and this slows down some ideas, on the other hand we still
eventually modify them and tools like netstat(1) never work on next version of
FreeBSD.  We maintain a ton of spares in them, and we already got some ifdef
hell at the end of tcpcb.

Details:
- Hide struct inpcb, struct tcpcb under _KERNEL || _WANT_FOO.
- Make struct xinpcb, struct xtcpcb pure API structures, not including
  kernel structures inpcb and tcpcb inside.  Export into these structures
  the fields from inpcb and tcpcb that are known to be used, and put there
  a ton of spare space.
- Make kernel and userland utilities compilable after these changes.
- Bump __FreeBSD_version.

Reviewed by:	rrs, gnn
Differential Revision:	D10018
2017-03-21 06:39:49 +00:00
Enji Cooper
bc77d8f48c Use SRCTOP-relative paths and .CURDIR with :H instead of ".." specified paths
This implifies pathing in make/displayed output

MFC after:    3 weeks
Sponsored by: Dell EMC Isilon
2017-01-20 04:38:54 +00:00
Konstantin Belousov
d9d09103dd Use standard Versions.def for libprocstat.
This makes the versions inheritance consistent for our versioned libraries.

Extracted from:	ino64
Discussed with:	kan
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-01-09 11:11:52 +00:00
Konstantin Belousov
06c76d249c Use tab for indent.
Extracted from:	ino64 work by gleb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2017-01-09 10:47:20 +00:00
Enji Cooper
75b6a179ac Use nitems({mib,name}) instead of hardcoding their value
MFC after:	3 days
2017-01-09 00:54:18 +00:00
Conrad Meyer
f9d593d771 libprocstat: Include cd9660 headers in the same order as the kernel
Fix userspace build after r311665.
2017-01-08 08:36:37 +00:00
Marcel Moolenaar
2b4da8aa20 When MAKEOBJDIRPREFIX points to a case-insensitive file system, the
build can break when different source files create the same target
files (case-insensitivity speaking).  This is the case for object
files compiled with -fpic and shared libraries. The former uses
an extension of ".So", and the latter an extension ".so".  Rename
shared object files from *.So to *.pico to match what NetBSD does.

See also r305855

MFC after:	1 month
Sponsored by:	Bracket Computing
Differential Revision:	https://reviews.freebsd.org/D7906
2016-09-24 15:11:27 +00:00
Konstantin Belousov
6bd8ddcf0c Fix libprocstat build after r305902.
- Use _Bool to not require userspace to include stdbool.h.
- Make extattr.h usable without vnode_if.h.
- Follow i_ump to get cdev pointer.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
2016-09-17 18:14:31 +00:00
Glen Barber
a70cba9582 First pass through library packaging.
Sponsored by:	The FreeBSD Foundation
2016-02-04 21:16:35 +00:00
Bryan Drewery
7b3ea376a2 META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host.
This both avoids some dependencies on xinstall.host and allows
bootstrapping on older releases to work due to lack of at least 'install -l'
support.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:10:28 +00:00
Conrad Meyer
e6b95927f3 Fix core corruption caused by race in note_procstat_vmmap
This fix is spiritually similar to r287442 and was discovered thanks to
the KASSERT added in that revision.

NT_PROCSTAT_VMMAP output length, when packing kinfo structs, is tied to
the length of filenames corresponding to vnodes in the process' vm map
via vn_fullpath.  As vnodes may move during coredump, this is racy.

We do not remove the race, only prevent it from causing coredump
corruption.

- Add a sysctl, kern.coredump_pack_vmmapinfo, to allow users to disable
  kinfo packing for PROCSTAT_VMMAP notes.  This avoids VMMAP corruption
  and truncation, even if names change, at the cost of up to PATH_MAX
  bytes per mapped object.  The new sysctl is documented in core.5.

- Fix note_procstat_vmmap to self-limit in the second pass.  This
  addresses corruption, at the cost of sometimes producing a truncated
  result.

- Fix PROCSTAT_VMMAP consumers libutil (and libprocstat, via copy-paste)
  to grok the new zero padding.

Reported by:	pho (https://people.freebsd.org/~pho/stress/log/datamove4-2.txt)
Relnotes:	yes
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D3824
2015-10-06 18:07:00 +00:00
Conrad Meyer
14bdbaf2e4 Detect badly behaved coredump note helpers
Coredump notes depend on being able to invoke dump routines twice; once
in a dry-run mode to get the size of the note, and another to actually
emit the note to the corefile.

When a note helper emits a different length section the second time
around than the length it requested the first time, the kernel produces
a corrupt coredump.

NT_PROCSTAT_FILES output length, when packing kinfo structs, is tied to
the length of filenames corresponding to vnodes in the process' fd table
via vn_fullpath.  As vnodes may move around during dump, this is racy.

So:

 - Detect badly behaved notes in putnote() and pad underfilled notes.

 - Add a fail point, debug.fail_point.fill_kinfo_vnode__random_path to
   exercise the NT_PROCSTAT_FILES corruption.  It simply picks random
   lengths to expand or truncate paths to in fo_fill_kinfo_vnode().

 - Add a sysctl, kern.coredump_pack_fileinfo, to allow users to
   disable kinfo packing for PROCSTAT_FILES notes.  This should avoid
   both FILES note corruption and truncation, even if filenames change,
   at the cost of about 1 kiB in padding bloat per open fd.  Document
   the new sysctl in core.5.

 - Fix note_procstat_files to self-limit in the 2nd pass.  Since
   sometimes this will result in a short write, pad up to our advertised
   size.  This addresses note corruption, at the risk of sometimes
   truncating the last several fd info entries.

 - Fix NT_PROCSTAT_FILES consumers libutil and libprocstat to grok the
   zero padding.

With suggestions from:	bjk, jhb, kib, wblock
Approved by:	markj (mentor)
Relnotes:	yes
Sponsored by:	EMC / Isilon Storage Division
Differential Revision:	https://reviews.freebsd.org/D3548
2015-09-03 20:32:10 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
44d314f704 dirdeps.mk now sets DEP_RELDIR 2015-06-08 23:35:17 +00:00
Marcelo Araujo
a770b4d8ae Remove unused variable spotted by clang.
Differential Revision:	D2685
Reviewed by:		rodrigc, stas
2015-06-01 06:05:53 +00:00
Simon J. Gerraty
98e0ffaefb Merge sync of head 2015-05-27 01:19:58 +00:00
Allan Jude
04017fc7a4 Create links to the libprocstat man pages for all of the libprocstat functions so they can be looked up by name
Add a cross refrence to libprocstat in the procstat.1 man page

Differential Revision:	https://reviews.freebsd.org/D2578
Suggested by:	jmg
Reviewed by:	brueffer
Approved by:	wblock (mentor)
MFC after:	1 week
Sponsored by:	ScaleEngine Inc.
2015-05-21 03:32:44 +00:00
Baptiste Daroussin
6b129086dc Convert libraries to use LIBADD
While here reduce a bit overlinking
2014-11-25 11:07:26 +00:00
Gleb Smirnoff
03fcebe6a2 Do not include buf.h. 2014-11-23 10:26:28 +00:00
Simon J. Gerraty
ee7b0571c2 Merge head from 7/28 2014-08-19 06:50:54 +00:00
Baptiste Daroussin
2b7af31cf5 use .Mt to mark up email addresses consistently (part3)
PR:		191174
Submitted by:	Franco Fichtner  <franco at lastsummer.de>
2014-06-23 08:23:05 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
cc3f4b9965 Merge from head 2014-05-08 23:54:15 +00:00
Warner Losh
c6063d0da8 Use src.opts.mk in preference to bsd.own.mk except where we need stuff
from the latter.
2014-05-06 04:22:01 +00:00
Simon J. Gerraty
9d2ab4a62d Merge head 2014-04-27 08:13:43 +00:00
Robert Watson
b881b8be1d Update most userspace consumers of capability.h to use capsicum.h instead.
auditdistd is not updated as I will make the change upstream and then do a
vendor import sometime in the next week or two.

MFC after:	3 weeks
2014-03-16 11:04:44 +00:00
Robert Watson
09b46be1cd When querying a process's umask via sysctl in libprocstat(), don't
print a warning if EPERM is returned as this is an expected failure
mode rather than error -- similar to current handling of ESRCH.
This makes the output of 'procstat -as' vastly more palatable.

MFC after:	3 days
Sponsored by:	DARPA, AFRL
2014-03-02 13:26:08 +00:00
Xin LI
f4c8ba8370 MFV r259170:
4370 avoid transmitting holes during zfs send

4371 DMU code clean up

illumos/illumos-gate@43466aae47

NOTE: Make sure the boot code is updated if a zpool upgrade is
done on boot zpool.

MFC after:	2 weeks
2014-01-01 00:45:28 +00:00
Simon J. Gerraty
3caf0790a8 Merge head@256284 2013-10-13 02:35:19 +00:00
Simon J. Gerraty
34b33809b7 Updated dependencies 2013-10-13 00:24:00 +00:00
Pawel Jakub Dawidek
772f66457a Handle the cases where NULL is passed as cap_rightsp to the
filestat_new_entry() function.

Reported by:	Alex Kozlov <spam@rm-rf.kiev.ua>
Approved by:	re (gjb)
2013-10-09 20:58:50 +00:00
Simon J. Gerraty
d1d0158641 Merge from head 2013-09-05 20:18:59 +00:00
Pawel Jakub Dawidek
7008be5bd7 Change the cap_rights_t type from uint64_t to a structure that we can extend
in the future in a backward compatible (API and ABI) way.

The cap_rights_t represents capability rights. We used to use one bit to
represent one right, but we are running out of spare bits. Currently the new
structure provides place for 114 rights (so 50 more than the previous
cap_rights_t), but it is possible to grow the structure to hold at least 285
rights, although we can make it even larger if 285 rights won't be enough.

The structure definition looks like this:

	struct cap_rights {
		uint64_t	cr_rights[CAP_RIGHTS_VERSION + 2];
	};

The initial CAP_RIGHTS_VERSION is 0.

The top two bits in the first element of the cr_rights[] array contain total
number of elements in the array - 2. This means if those two bits are equal to
0, we have 2 array elements.

The top two bits in all remaining array elements should be 0.
The next five bits in all array elements contain array index. Only one bit is
used and bit position in this five-bits range defines array index. This means
there can be at most five array elements in the future.

To define new right the CAPRIGHT() macro must be used. The macro takes two
arguments - an array index and a bit to set, eg.

	#define	CAP_PDKILL	CAPRIGHT(1, 0x0000000000000800ULL)

We still support aliases that combine few rights, but the rights have to belong
to the same array element, eg:

	#define	CAP_LOOKUP	CAPRIGHT(0, 0x0000000000000400ULL)
	#define	CAP_FCHMOD	CAPRIGHT(0, 0x0000000000002000ULL)

	#define	CAP_FCHMODAT	(CAP_FCHMOD | CAP_LOOKUP)

There is new API to manage the new cap_rights_t structure:

	cap_rights_t *cap_rights_init(cap_rights_t *rights, ...);
	void cap_rights_set(cap_rights_t *rights, ...);
	void cap_rights_clear(cap_rights_t *rights, ...);
	bool cap_rights_is_set(const cap_rights_t *rights, ...);

	bool cap_rights_is_valid(const cap_rights_t *rights);
	void cap_rights_merge(cap_rights_t *dst, const cap_rights_t *src);
	void cap_rights_remove(cap_rights_t *dst, const cap_rights_t *src);
	bool cap_rights_contains(const cap_rights_t *big, const cap_rights_t *little);

Capability rights to the cap_rights_init(), cap_rights_set(),
cap_rights_clear() and cap_rights_is_set() functions are provided by
separating them with commas, eg:

	cap_rights_t rights;

	cap_rights_init(&rights, CAP_READ, CAP_WRITE, CAP_FSTAT);

There is no need to terminate the list of rights, as those functions are
actually macros that take care of the termination, eg:

	#define	cap_rights_set(rights, ...)				\
		__cap_rights_set((rights), __VA_ARGS__, 0ULL)
	void __cap_rights_set(cap_rights_t *rights, ...);

Thanks to using one bit as an array index we can assert in those functions that
there are no two rights belonging to different array elements provided
together. For example this is illegal and will be detected, because CAP_LOOKUP
belongs to element 0 and CAP_PDKILL to element 1:

	cap_rights_init(&rights, CAP_LOOKUP | CAP_PDKILL);

Providing several rights that belongs to the same array's element this way is
correct, but is not advised. It should only be used for aliases definition.

This commit also breaks compatibility with some existing Capsicum system calls,
but I see no other way to do that. This should be fine as Capsicum is still
experimental and this change is not going to 9.x.

Sponsored by:	The FreeBSD Foundation
2013-09-05 00:09:56 +00:00
Davide Italiano
237abf0c56 - Trim an unused and bogus Makefile for mount_smbfs.
- Reconnect with some minor modifications, in particular now selsocket()
internals are adapted to use sbintime units after recent'ish calloutng
switch.
2013-06-28 21:00:08 +00:00
John Baldwin
608203fd94 Borrow the algorithm from kvm_getprocs() to fix procstat_getprocs() to
handle the case where the process tables grows in between the calls to
fetch the size and fetch the table.

MFC after:	1 week
2013-06-11 20:00:49 +00:00
Mikolaj Golub
467112b4d1 Make errbuf optional, so if a caller is not interested in an error
message she can pass NULL (procstat(1) already does this).

MFC after:	2 weeks
2013-05-08 19:11:47 +00:00
Sergey Kandaurov
f45590da31 Bump date. 2013-05-04 12:44:00 +00:00
John Baldwin
958aa57537 Similar to 233760 and 236717, export some more useful info about the
kernel-based POSIX semaphore descriptors to userland via procstat(1) and
fstat(1):
- Change sem file descriptors to track the pathname they are associated
  with and add a ksem_info() method to copy the path out to a
  caller-supplied buffer.
- Use the fo_stat() method of shared memory objects and ksem_info() to
  export the path, mode, and value of a semaphore via struct kinfo_file.
- Add a struct semstat to the libprocstat(3) interface along with a
  procstat_get_sem_info() to export the mode and value of a semaphore.
- Teach fstat about semaphores and to display their path, mode, and value.

MFC after:	2 weeks
2013-05-03 21:11:57 +00:00
Mikolaj Golub
dd70ad64bf procstat_getpathname: for kvm method, instead of returning the error
that the method is not supported, return an empty string.

This looks more handy for callers like procstat(1), which will not
abort after the failed call and still output some useful information.

MFC after:	3 weeks
2013-05-01 15:02:58 +00:00
Mikolaj Golub
1f84c47e42 KVM method support for procstat_getgroups, procstat_getumask,
procstat_getrlimit, and procstat_getosrel.

MFC after:	3 weeks
2013-05-01 15:01:05 +00:00
Mikolaj Golub
b03e2d7729 Embed revision id in the library.
MFC after:	29 days
2013-04-21 17:10:10 +00:00
Joel Dahl
20ed2b4343 mdoc: end function context properly. 2013-04-20 22:16:49 +00:00
Mikolaj Golub
6dd520d609 Bump date. 2013-04-20 08:25:14 +00:00
Mikolaj Golub
89358231fa Add procstat_getkstack function to dump kernel stacks of a process.
MFC after:	1 month
2013-04-20 08:17:20 +00:00
Mikolaj Golub
2ff020d3c3 Add procstat_getauxv function to retrieve a process auxiliary vector.
MFC after:	1 month
2013-04-20 08:10:47 +00:00
Mikolaj Golub
4482b5e320 Extend libprocstat with functions to retrieve process command line
arguments and environment variables.

Suggested by:	stas
Reviewed by:	jhb and stas (initial version)
MFC after:	1 month
2013-04-20 08:07:04 +00:00
Mikolaj Golub
eec6cb1cf2 Add procstat_getosrel function to retrieve a process osrel info.
MFC after:	1 month
2013-04-20 08:03:56 +00:00