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2021-04-09Move maxListenBacklog check to sentryMithun Iyer
Move maxListenBacklog check to the caller of endpoint Listen so that it is applicable to Unix domain sockets as well. This was changed in cl/366935921. Reported-by: syzbot+a35ae7cdfdde0c41cf7a@syzkaller.appspotmail.com PiperOrigin-RevId: 367728052
2021-04-09Rename IsV6LinkLocalAddress to IsV6LinkLocalUnicastAddressGhanan Gowripalan
To match the V4 variant. PiperOrigin-RevId: 367691981
2021-04-09Remove duplicate accept queue fullness checkTamir Duberstein
Both code paths perform this check; extract it and remove the comment that suggests it is unique to one of the paths. PiperOrigin-RevId: 367666160
2021-04-09Propagate SYN handling errorTamir Duberstein
Both callers of this function still drop this error on the floor, but progress is progress. Updates #4690. PiperOrigin-RevId: 367604788
2021-04-08Set root dentry and hash for verity before verifyChong Cai
Set root dentry and root hash in verity fs before we verify the root directory if a root hash is provided. These are used during verification. PiperOrigin-RevId: 367547346
2021-04-08Set parent after child is verifiedChong Cai
We should only set parent after child is verified. Also, if the parent is set before verified, destroyLocked() will try to grab parent.dirMu, which may cause deadlock. PiperOrigin-RevId: 367543655
2021-04-08Merge pull request #5736 from lubinszARM:pr_bblu_tlb_asidgVisor bot
PiperOrigin-RevId: 367523491
2021-04-08Do not forward link-local packetsGhanan Gowripalan
As per RFC 3927 section 7 and RFC 4291 section 2.5.6. Test: forward_test.TestMulticastForwarding PiperOrigin-RevId: 367519336
2021-04-08Drop unused escapes information.Adin Scannell
PiperOrigin-RevId: 367517305
2021-04-08Add Children in merkletree generateChong Cai
This field was missing and should be provided. PiperOrigin-RevId: 367474481
2021-04-08Join all routers group when forwarding is enabledGhanan Gowripalan
See comments inline code for rationale. Test: ip_test.TestJoinLeaveAllRoutersGroup PiperOrigin-RevId: 367449434
2021-04-08Clarify platform errors.Adin Scannell
PiperOrigin-RevId: 367446222
2021-04-07Add internal staging tags to //runsc and //shim binaries.Adin Scannell
PiperOrigin-RevId: 367328273
2021-04-07perf/getpid: add a case when syscalls are executed via mov $XXX, %eax; syscallAndrei Vagin
This is the most often pattern of calling system calls in real applications. PiperOrigin-RevId: 367320048
2021-04-07Remove flock suppressionTamir Duberstein
PiperOrigin-RevId: 367312275
2021-04-06Do not perform MLD for certain multicast scopesGhanan Gowripalan
...as per RFC 2710 section 5 page 10. Test: ipv6_test.TestMLDSkipProtocol PiperOrigin-RevId: 367031126
2021-04-05Update gofer dentry permissions only when needed.Ayush Ranjan
Without this change, we ask the gofer server to update the permissions whenever the UID, GID or size is updated via SetStat. Consequently, we don not generate inotify events when the permissions actually change due to SGID bit getting cleared. With this change, we will update the permissions only when needed and generate inotify events. PiperOrigin-RevId: 366946842
2021-04-05Fix listen backlog handling to be in parity with LinuxMithun Iyer
- Change the accept queue full condition for a listening endpoint to only honor completed (and delivered) connections. - Use syncookies if the number of incomplete connections is beyond listen backlog. This also cleans up the SynThreshold option code as that is no longer used with this change. - Added a new stack option to unconditionally generate syncookies. Similar to sysctl -w net.ipv4.tcp_syncookies=2 on Linux. - Enable keeping of incomplete connections beyond listen backlog. - Drop incoming SYNs only if the accept queue is filled up. - Drop incoming ACKs that complete handshakes when accept queue is full - Enable the stack to accept one more connection than programmed by listen backlog. - Handle backlog argument being zero, negative for listen, as Linux. - Add syscall and packetimpact tests to reflect the changes above. - Remove TCPConnectBacklog test which is polling for completed connections on the client side which is not reflective of whether the accept queue is filled up by the test. The modified syscall test in this CL addresses testing of connecting sockets. Fixes #3153 PiperOrigin-RevId: 366935921
2021-04-05Report task CPU usage through the cpuacct cgroup controller.Rahat Mahmood
PiperOrigin-RevId: 366923274
2021-04-05Add initial verity ioctl syscall testsChong Cai
PiperOrigin-RevId: 366907152
2021-04-05Enable Checkpoint/Restore test with VFS2Fabricio Voznika
Closes #3373 PiperOrigin-RevId: 366903991
2021-04-05Add fsstress on tmpfs to presubmitFabricio Voznika
Updates #5273 PiperOrigin-RevId: 366902314
2021-04-05Allow default control values to be set for cgroupfs.Rahat Mahmood
PiperOrigin-RevId: 366891806
2021-04-05Actually don't run unlink_benchmark with TSAN.Ayush Ranjan
This benchmark currently takes > 15 minutes to run in that case. PiperOrigin-RevId: 366891726
2021-04-05deflake semaphore testKevin Krakauer
There's no reason to actually increment the semaphore, it just introduces the chance of a race. PiperOrigin-RevId: 366851795
2021-04-05Allow user mount for verity fsChong Cai
Allow user mounting a verity fs on an existing mount by specifying mount flags root_hash and lower_path. PiperOrigin-RevId: 366843846
2021-04-05Set Verity bit in verity_prepare cmdChong Cai
This is needed to enable Xattrs features required by verity. PiperOrigin-RevId: 366843640
2021-04-05Fail tests when container returns non-zero statusFabricio Voznika
PiperOrigin-RevId: 366839955
2021-04-05Don't run unlink_benchmark with TSAN.Adin Scannell
This benchmark currently takes > 15 minutes to run in that case. PiperOrigin-RevId: 366817185
2021-04-03Remove eternal and enormous tests.Adin Scannell
PiperOrigin-RevId: 366573366
2021-04-02Implement cgroupfs.Rahat Mahmood
A skeleton implementation of cgroupfs. It supports trivial cpu and memory controllers with no support for hierarchies. PiperOrigin-RevId: 366561126
2021-04-02Internal change.gVisor bot
PiperOrigin-RevId: 366555466
2021-04-02Implement the runsc verity-prepare command.Rahat Mahmood
Implement a new runsc command to set up a sandbox with verityfs and run the measure tool. This is loosely forked from the do command, and currently requires the caller to provide the measure tool binary. PiperOrigin-RevId: 366553769
2021-04-02Add vfs1 to go/runsc-benchmarksZach Koopmans
PiperOrigin-RevId: 366470480
2021-04-02Internal change.gVisor bot
PiperOrigin-RevId: 366462448
2021-04-01Internal changesBhasker Hariharan
PiperOrigin-RevId: 366344805
2021-04-01Remove invalid dependency.Adin Scannell
PiperOrigin-RevId: 366344222
2021-04-01Internal change.gVisor bot
PiperOrigin-RevId: 366292533
2021-03-30Fix panic when overriding /dev files with VFS2Fabricio Voznika
VFS1 skips over mounts that overrides files in /dev because the list of files is hardcoded. This is not needed for VFS2 and a recent change lifted this restriction. However, parts of the code were still skipping /dev mounts even in VFS2, causing the loader to panic when it ran short of FDs to connect to the gofer. PiperOrigin-RevId: 365858436
2021-03-29[syserror] Split usermem packageZach Koopmans
Split usermem package to help remove syserror dependency in go_marshal. New hostarch package contains code not dependent on syserror. PiperOrigin-RevId: 365651233
2021-03-29Merge pull request #5728 from zhlhahaha:2091gVisor bot
PiperOrigin-RevId: 365613394
2021-03-29[perf] Reduce contention in ptrace.threadPool.lookupOrCreate().Ayush Ranjan
lookupOrCreate is called from subprocess.switchToApp() and subprocess.syscall(). lookupOrCreate() looks for a thread already created for the current TID. If a thread exists (common case), it returns immediately. Otherwise it creates a new one. This change switches to using a sync.RWMutex. The initial thread existence lookup is now done only with the read lock. So multiple successful lookups can occur concurrently. Only when a new thread is created will it acquire the lock for writing and update the map (which is not the common case). Discovered in mutex profiles from the various ptrace benchmarks. Example: https://gvisor.dev/profile/gvisor-buildkite/fd14bfad-b30f-44dc-859b-80ebac50beb4/843827db-da50-4dc9-a2ea-ecf734dde2d5/tmp/profile/ptrace/BenchmarkFio/operation.write/blockSize.4K/filesystem.tmpfs/benchmarks/fio/mutex.pprof/flamegraph PiperOrigin-RevId: 365612094
2021-03-26arm64 ring0: don't use inner-sharable to invalidate tlbRobin Luk
It is enough to invalidate the tlb of local vcpu in switch(). TLBI with inner-sharable will invalidate the tlb in other vcpu. Arm64 hardware supports at least 256 pcid, so I think it's ok to set the length of pcid pool to 128. Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
2021-03-25Use seqfile.SeqHandles correctly in VFS1 /proc/net/.Jamie Liu
Before this change: ``` $ docker run --runtime=runsc --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = EOF $ docker run --runtime=runsc-vfs2 --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = 256 ``` After this change: ``` $ docker run --runtime=runsc --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = 256 $ docker run --runtime=runsc-vfs2 --rm -it -v ~/tmp:/hosttmp ubuntu:focal /hosttmp/issue5732 --bytes1=128 --bytes2=1024 #1: read(128) = 128 #2: read(1024) = 256 ``` Fixes #5732 PiperOrigin-RevId: 365178386
2021-03-25Lock TaskSet mutex for writing in ptraceClone().Jamie Liu
This is necessary since ptraceClone() mutates tracer.ptraceTracees. PiperOrigin-RevId: 365152396
2021-03-25setgid: skip tests when we can't find usable GIDsKevin Krakauer
PiperOrigin-RevId: 365092320
2021-03-25Fix comments errorHoward Zhang
Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-03-25Fix nogo test errorHoward Zhang
Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-03-24Fix path to runsc in CNI tutorial.Ian Lewis
PiperOrigin-RevId: 364931406
2021-03-24Fix highlighting sidebar menu on the websiteIan Lewis
Highlighting previously highlighted multiple items in the sidebar if the had the same page name (not full url). This change simplifies this by adding the highlight class in the jekyll template rather than javascript, and highlights only the correct page. PiperOrigin-RevId: 364931350
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