Note that these simply will use the same logic as getxattr and setxattr, which
is not yet implemented for most filesystems.
PiperOrigin-RevId: 290800960
Java 11 parses /proc/self/mountinfo for cgroup information. Java 11.0.4 uses
the mount path to determine what cgroups existed, but Java 11.0.5 reads the
cgroup names from the superblock options.
This CL adds the cgroup name to the superblock options if the filesystem type
is "cgroup". Since gVisor doesn't actually support cgroups yet, we just infer
the cgroup name from the path.
PiperOrigin-RevId: 290434323
CERT Advisory CA-96.21 III. Solution advises that devices drop packets which
could not have correctly arrived on the wire, such as receiving a packet where
the source IP address is owned by the device that sent it.
Fixes#1507
PiperOrigin-RevId: 290378240
x86 and arm64 use a different stat struct in Linux
kernel, so the stat() syscall implementation has
to handle the file stat data separately.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: If3986e915a667362257a54e7fbbcc1fe18951015
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1493 from xiaobo55x:stat f15a216d9297eb9a96d2c483d396a9919145d7fa
PiperOrigin-RevId: 290274287
Add command to run benchmarks on GCP backed machines
using the gcloud producer.
Run with:
`bazel run :benchmarks -- run-gcp [BENCHMARK_NAME]`
Tested with the startup benchmark.
PiperOrigin-RevId: 290126444
These can remain disabled until we actually support extended attributes.
The following modifications were also made:
1. Disable save/restore on tests that change file permissions. Restore will not
work properly for these tests, since it will try to open the file with
read-write after it has been read- or write-only.
2. Change user.abc to user.test.
PiperOrigin-RevId: 290123941
There was a very bare get/setxattr in the InodeOperations interface. Add
context.Context to both, size to getxattr, and flags to setxattr.
Note that extended attributes are passed around as strings in this
implementation, so size is automatically encoded into the value. Size is
added in getxattr so that implementations can return ERANGE if a value is larger
than can fit in the user-allocated buffer. This prevents us from unnecessarily
passing around an arbitrarily large xattr when the user buffer is actually too
small.
Don't use the existing xattrwalk and xattrcreate messages and define our
own, mainly for the sake of simplicity.
Extended attributes will be implemented in future commits.
PiperOrigin-RevId: 290121300
sys_clone has many flavors in Linux, and amd64 chose
a different one from x86(different arguments order).
Ref kernel/fork.c for more info.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: I6c8cbc685f4a6e786b171715ab68292fc95cbf48
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1545 from xiaobo55x:clone 156bd2dfbc63ef5291627b0578ddea77997393b2
PiperOrigin-RevId: 290093953
If a previously added IPv6 address (statically or via SLAAC) was removed, it
would be left in an expired state waiting to be cleaned up if any references to
it were still held. During this time, the same address could be regenerated via
SLAAC, which should be allowed. This change supports this scenario.
When upgrading an endpoint from temporary or permanentExpired to permanent,
respect the new configuration type (static or SLAAC) and deprecated status,
along with the new PrimaryEndpointBehavior (which was already supported).
Test: stack.TestAutoGenAddrAfterRemoval
PiperOrigin-RevId: 289990168
This change adds support to send NDP Router Solicitation messages when a NIC
becomes enabled as a host, as per RFC 4861 section 6.3.7.
Note, Router Solicitations will only be sent when the stack has forwarding
disabled.
Tests: Unittests to make sure that the initial Router Solicitations are sent
as configured. The tests also validate the sent Router Solicitations' fields.
PiperOrigin-RevId: 289964095
The change to introduce worker goroutines can cause the endpoint
to transition to StateError and we should terminate the loop rather
than let the endpoint transition to a CLOSED state as we do
in case the endpoint enters TIME-WAIT/CLOSED. Moving to a closed
state would cause the actual error to not be propagated to
any read() calls etc.
PiperOrigin-RevId: 289923568
Signed-off-by: Bin Lu <bin.lu@arm.com>
Change-Id: I9cce23db4e5caec82ce42b4970fdb7f7e8c08f1d
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/773 from lubinszARM:pr_arch_basic 3fe2fd8e6286766bbe489ef971dce204f924feba
PiperOrigin-RevId: 289795569
This patch holds taskset.mu when getting tty. If we don't
do this, it may cause a "unlock of unlocked mutex" problem,
since signalHandlers may be replaced by CopyForExec() in
runSyscallAfterExecStop after the signalHandlers.mu has
been holded in TTY().
The problem is easy to reproduce with keeping to do "runsc ps".
The crash log is :
fatal error: sync: unlock of unlocked mutex
goroutine 5801304 [running]:
runtime.throw(0xfd019c, 0x1e)
GOROOT/src/runtime/panic.go:774 +0x72 fp=0xc001ba47b0 sp=0xc001ba4780 pc=0x431702
sync.throw(0xfd019c, 0x1e)
GOROOT/src/runtime/panic.go:760 +0x35 fp=0xc001ba47d0 sp=0xc001ba47b0 pc=0x431685
sync.(*Mutex).unlockSlow(0xc00cf94a30, 0xc0ffffffff)
GOROOT/src/sync/mutex.go:196 +0xd6 fp=0xc001ba47f8 sp=0xc001ba47d0 pc=0x4707d6
sync.(*Mutex).Unlock(0xc00cf94a30)
GOROOT/src/sync/mutex.go:190 +0x48 fp=0xc001ba4818 sp=0xc001ba47f8 pc=0x4706e8
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).TTY(0xc011a9e800, 0x0)
pkg/sentry/kernel/tty.go:38 +0x88 fp=0xc001ba4868 sp=0xc001ba4818 pc=0x835fa8
gvisor.dev/gvisor/pkg/sentry/control.Processes(0xc00025ae00, 0xc013e397c0, 0x40, 0xc0137b9800, 0x1, 0x7f292e9a4cc0)
pkg/sentry/control/proc.go:366 +0x355 fp=0xc001ba49a0 sp=0xc001ba4868 pc=0x9ac4a5
gvisor.dev/gvisor/runsc/boot.(*containerManager).Processes(0xc0003b62c0, 0xc0051423d0, 0xc0137b9800, 0x0, 0x0)
runsc/boot/controller.go:228 +0xdf fp=0xc001ba49e8 sp=0xc001ba49a0 pc=0xaf06cf
Signed-off-by: chris.zn <chris.zn@antfin.com>
Rahat Mahmood
Kevin Krakauer
Michael Pratt
Ryan Heacock
gVisor bot
Fabricio Voznika
Dean Deng
Haibo Xu
Nicolas Lacasse
Eyal Soha
Andrei Vagin
Tamir Duberstein
Adin Scannell
Zach Koopmans
Ghanan Gowripalan
Bhasker Hariharan
lubinszARM
chris.zn