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1077 Commits

Author SHA1 Message Date
Dmitry Chagin
2ca5d34d20 Fix NULL pointer dereference in futex_wake_op() in case when the same 
address specified for arguments uaddr and uaddr2.

PR:		218987
Reported by:	luke.tw gmail
MFC after:	1 week
 2017-05-01 12:25:37 +00:00
Dmitry Chagin
c4f2941e0b Fix symlinkat() which use the newdfd argument to look up the old path, 
while it should use it for the new path instead.

Reported by:	trasz@
MFC after:	1 month
 2017-04-30 05:56:57 +00:00
Dmitry Chagin
25ada63736 Map Linux CLOCK_BOOTTIME to native CLOCK_UPTIME. 
MFC after:	1 week
 2017-04-23 07:57:30 +00:00
Dmitry Chagin
6e1d05bbd7 Add Evdev ioctl handler to the Linuxulator. 
PR:		218627
Submitted by:	Jan Kokemüller
Reported by:	Jan Kokemüller
MFC after:	1 week
 2017-04-23 07:43:50 +00:00
Conrad Meyer
c6943f3abc linux_ioctl: Refactor some v4l2 struct converters 
According to the C standard, it is invalid to copy beyond the end of an
object, even if that object is obviously a member of a larger object (a
struct, in this case).

Appease the standard and Coverity by refactoring the copy in a
straightforward way.  No functional change.

Reported by:	Coverity (CWE-120)
CIDs:		1007819, 1007820, 1007821, 1007822, 1009668, 1009669
Security:	no (false positive detection)
Sponsored by:	Dell EMC Isilon
 2017-04-13 17:34:51 +00:00
Tai-hwa Liang
113bb55f71 Adding SIOCGIFNAME support in Linuxulator. This should silence the console warning associated 
with linux-opera:
	linux: pid 23492 (opera): ioctl fd=5, cmd=0x8910 ('\M^I',16) is not implemented
	linux: pid 23492 (opera): ioctl fd=28, cmd=0x8910 ('\M^I',16) is not implemented
	...

Reviewed by:	kib, marcel, dchagin
Tested with:	linux-opera-12.16_3
MFC after:	1 month
 2017-04-09 15:27:04 +00:00
Dmitry Chagin
c695024348 Prevent ushort values overflow when convert new Linux 64-bit ipc 
struct to the old Linux ipc struct.

Reported by:	PVS-Studio
XMFC with:	r314866

MFC after:	3 days
 2017-04-07 05:37:08 +00:00
Dmitry Chagin
f0f583842e Use the kern_clock_nanosleep() to implement Linux clock_nanosleep() with 
the proper handling of the TIMER_ABSTIME flag.

XMFC after:	r315526

MFC after:	1 month
 2017-04-02 18:16:00 +00:00
Dmitry Chagin
0aecedaa83 Remove excess tv_nsec test as this is done by linux_to_native_timespec(). 
MFC after:	1 week
 2017-04-02 07:49:05 +00:00
Dmitry Chagin
2ac9dced18 The value in the tv_nsec field should be in the range 0 to 999999999. 
Pointed out by:	bde@

MFC after:	1 week
 2017-04-02 07:47:28 +00:00
Dmitry Chagin
71b50d0872 As noted by bde@ negative tv_sec values are not checked for overflow, 
so overflow can still occur. Fix that. Also remove the extra check for
tv_sec size as under COMPAT_LINUX32 it is always true.

Pointed out by:	bde@

MFC after:	1 week
 2017-04-02 07:46:13 +00:00
Dmitry Chagin
faa9679e24 Use kern_mincore() helper instead of abusing syscall entry. 
Suggested by:	kib@
Reviewed by:	kib@
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D10143
 2017-03-30 19:45:07 +00:00
Dmitry Chagin
6c2a934b79 Implement Linux mincore() system call. 
This is necessary for the upcoming drm-next.

Suggested by:	hselasky@
MFC after:	1 month
 2017-03-25 15:47:29 +00:00
Eric van Gyzen
4cf66812ea nanosleep: plug a kernel memory disclosure 
nanosleep() updates rmtp on EINVAL.  In that case, kern_nanosleep()
has not updated rmt, so sys_nanosleep() updates the user-space rmtp
by copying garbage from its stack frame.  This is not only a kernel
memory disclosure, it's also not POSIX-compliant.  Fix it to update
rmtp only on EINTR.

Reviewed by:	jilles (via D10020), dchagin
MFC after:	3 days
Security:	possibly
Sponsored by:	Dell EMC
Differential Revision:	https://reviews.freebsd.org/D10044
 2017-03-18 20:16:23 +00:00
Dmitry Chagin
b1ba0846f1 Implement getrandom() syscall. 
Note. GRND_RANDOM option is not supported for now.

MFC after:	1 month
 2017-03-18 18:34:29 +00:00
Dmitry Chagin
cd92d27e16 As noted by Roel Bouwman Linux allows a large buffer size than the 
struct ucred size. Fix this.

PR:		102956
Reported by:	Roel Bouwman <roel at qsp nl>
MFC after:	1 week
 2017-03-18 18:31:04 +00:00
Dmitry Chagin
857129394d To reduce code duplication move socket defines to the MI path. 
MFC after:	1 week
 2017-03-18 18:23:30 +00:00
Dmitry Chagin
54ec725bf3 Remove superflous break statment. 
MFC after:	1 week
 2017-03-18 18:19:31 +00:00
Dmitry Chagin
bd597911b2 Check for negative nanoseconds. 
Linux do that in timespec_valid().

Reported by:	vangyzen@
MFC after:	1 week
 2017-03-18 18:14:17 +00:00
Dmitry Chagin
5bb676adf7 Fix usage of the same 'i' variable in the external and nested loops. 
Submitted by: Svyatoslav <razmyslov at viva64.com>
Sponsored by: PVS-Studio

MFC after:	1 week
 2017-03-14 18:29:23 +00:00
Dmitry Chagin
b8bec5a415 Linux semop system call return EINVAL in case when the invalid nsops 
or semid values specified.

MFC after:	1 month
 2017-03-07 17:12:22 +00:00
Dmitry Chagin
c10e04f5a0 Linux kernel does not export to the user space ipc_perm.mode values 
other than S_IRWXUGO (0777).

MFC after:	1 month
 2017-03-07 17:09:12 +00:00
Dmitry Chagin
ab60bc8488 Reduce code duplication between MD Linux code by moving SYSV IPC 64-bit 
related struct definitions out into the MI path.

Invert the native ipc structs to the Linux ipc structs convesion logic.
Since 64-bit variant of ipc structs has more precision convert native ipc
structs to the 64-bit Linux ipc structs and then truncate 64-bit values
into the non 64-bit if needed. Unlike Linux, return EOVERFLOW if the
values do not fit.

Fix SYSV IPC for 64-bit Linuxulator which never sets IPC_64 bit.

MFC after:	1 month
 2017-03-07 17:07:16 +00:00
Mahdi Mokhtari
8049c6bfb8 Add UNIMPLEMENTED() placeholder macro for 
the syscalls that are not implemented in Linux kernel itself.
Cleanup DUMMY() macros.

Reviewed by:	dchagin, trasz
Approved by:	dchagin
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D9804
 2017-03-06 18:11:38 +00:00
Dmitry Chagin
8042c504f5 Style(9). 
MFC after:	1 month
 2017-03-04 08:59:21 +00:00
Dmitry Chagin
e45e3698ae Remove attribute __packed from some IPC struct definition since 
Linuxulator is x86 only.
The only notable differences in algnment for an LP64 64-bit system
when compared to a 32-bit system is an eight or large byte types
alignment.

MFC after:	1 month
 2017-03-04 08:57:39 +00:00
Dmitry Chagin
c1c8a12139 Hide Linux socketcall constants under corresponding #ifdef since 
they are used only in i386 Linuxulator.

MFC after:	1 week
 2017-03-04 06:54:05 +00:00
Dmitry Chagin
0633df29be Linux epoll return EEXIST on case when op is EPOLL_CTL_ADD, and the supplied 
file descriptor fd is already registered with this epoll instance.

MFC after:	1 month
 2017-02-28 19:55:16 +00:00
Dmitry Chagin
8bc4edfd75 Linux epoll return ENOENT error in case when op is EPOLL_CTL_MOD or 
EPOLL_CTL_DEL, and fd is not registered with this epoll instance.

MFC after:	1 month
 2017-02-28 19:54:22 +00:00
Dmitry Chagin
29b1ecbe01 FreeBSD does not have analgue for epill EPOLLPRI event type. 
So, do not set EPOLLPRI event acidently.
Also, do not set EPOLLWRNORM and EPOLLRDNORM events as epoll
do not set this events.

MFC after:	1 month
 2017-02-28 19:49:21 +00:00
Dmitry Chagin
281afc595f Return EINVAL when an invalid file descriptor specified. 
MFC after:	1 month
 2017-02-27 16:55:09 +00:00
Dmitry Chagin
ed211c40f4 Unify eventfd ioctl method and use it for other similar interfaces. 
MFC after:	1 month
 2017-02-27 16:53:52 +00:00
Dmitry Chagin
2fa6d2fe84 Return EINVAL in case when an invalid size of signal mask specified. 
MFC after:	1 month
 2017-02-26 20:01:58 +00:00
Dmitry Chagin
80c7315d17 Restore signal mask in epoll_pwait. 
MFC after:	1 month
 2017-02-26 19:54:17 +00:00
Dmitry Chagin
e0a254f6df Return EINVAL when an invalid file descriptor is specified. 
MFC after:	1 month
 2017-02-26 19:51:44 +00:00
Dmitry Chagin
dd93b628e9 Implement timerfd family syscalls. 
MFC after:	1 month
 2017-02-26 09:48:18 +00:00
Dmitry Chagin
01d4a346c2 Nostly style(9) changes, replace unused eventfd_truncate() 
by default invfo_truncate() method.

MFC after:	1 month
 2017-02-26 09:42:34 +00:00
Dmitry Chagin
0670e972e3 Return EOVERFLOW error in case then the size of tv_sec field of struct timespec 
in COMPAT_LINUX32 Linuxulator's not equal to the size of native tv_sec.

MFC after:	1 month
 2017-02-26 09:40:42 +00:00
Edward Tomasz Napierala
e801ac7852 Fix linux_fstatfs() to return proper value for f_frsize. Without it, 
linux df(1) binary from Xenial shows garbage.

Reviewed by:	dchagin
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D9692
 2017-02-25 20:32:37 +00:00
Mahdi Mokhtari
bd911530b7 Add linux_preadv() and linux_pwritev() syscalls to Linuxulator. 
Reviewed by:	dchagin
Approved by:	dchagin, trasz (src committers)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D9722
 2017-02-24 20:04:02 +00:00
Dmitry Chagin
8665c4d9cd Revert r314217. Commit is not match that I have approved. 2017-02-24 19:47:27 +00:00
Mahdi Mokhtari
21d23e3249 Add linux_preadv() and linux_pwritev() syscalls to Linuxulator. 
Reviewed by:	dchagin
Approved by:	dchagin, trasz (src committers)
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D9722
 2017-02-24 19:22:17 +00:00
Dmitry Chagin
c1f156d447 Right clock defines specified in linux_timer.h. 
Get rid of spirious clock defines from linux_misc.h.

MFC after:	1 week
 2017-02-23 08:17:42 +00:00
Edward Tomasz Napierala
3b51ec0886 Get rid of foo_sys() in linuxulator code. It was commented out, and it 
would be useless anyway - there is no point in pretending to have block
devices; our "block" devices are in fact character ones, and can only
be accessed as such.

Discussed with:	dchagin
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
 2017-02-21 15:57:01 +00:00
Edward Tomasz Napierala
c6d57d3073 There are some Linux binaries that expect the system to obey the "addr" 
parameter to mmap(2), even if MAP_FIXED is not explicitly specified.
Android ART is one example.  Implement bug compatibility for this case
in linuxulator.

Reviewed by:	dchagin@
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D9373
 2017-02-19 17:17:06 +00:00
Dmitry Chagin
486a06bdf0 Implement rt_tgsigqueueinfo system call used by glibc for pthread_sigqueue(3). 
MFC after:	2 week
 2017-02-19 07:38:11 +00:00
Dmitry Chagin
dddb7e7f25 Style(9), some XXX comments fix. No functional changes. 
MFC after:	1 week
 2017-02-18 10:01:17 +00:00
Dmitry Chagin
fa580e65c4 Initialize cap_rights before use. 
MFC after:	1 week
 2017-02-18 09:39:20 +00:00
Dmitry Chagin
56fba8e66b Finich r313684. 
Convert linux_recv(), linux_send() and linux_accept() system call arguments
to the register_t type too.

PR:		217161
MFC after:	3 days
xMFC with:	r313284,r313285,r313684
 2017-02-18 07:21:50 +00:00
Edward Tomasz Napierala
8081c6ce6b Improve debugging output. 
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
 2017-02-16 10:36:00 +00:00