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2021-07-30Merge release-20210726.0-16-gc9aac64e0 (automated)gVisor bot
2021-07-30Merge pull request #6257 from zhlhahaha:2193-1gVisor bot
PiperOrigin-RevId: 387885663
2021-07-30Merge release-20210726.0-12-g62ea5c0a2 (automated)gVisor bot
2021-07-30checklinkname: rudimentary type-checking of linkname directivesMichael Pratt
This CL introduces a 'checklinkname' analyzer, which provides rudimentary type-checking that verifies that function signatures on the local and remote sides of //go:linkname directives match expected values. If the Go standard library changes the definitions of any of these function, checklinkname will flag the change as a finding, providing an error informing the gVisor team to adapt to the upstream changes. This allows us to eliminate the majority of gVisor's forward-looking negative build tags, as we can catch mismatches in testing [1]. The remaining forward-looking negative build tags are covering shared struct definitions, which I hope to add to checklinkname in a future CL. [1] Of course, semantics/requirements can change without the signature changing, so we still must be careful, but this covers the common case. PiperOrigin-RevId: 387873847
2021-07-28Merge release-20210720.0-44-g72c2b74ac (automated)gVisor bot
2021-07-28Add Uid/Gid/Groups fields to VFS2 /proc/[pid]/status.Jamie Liu
For comparison: ``` $ docker run --rm -it ubuntu:focal bash -c 'cat /proc/self/status' Name: cat Umask: 0022 State: R (running) Tgid: 1 Ngid: 0 Pid: 1 PPid: 0 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 64 Groups: NStgid: 1 NSpid: 1 NSpgid: 1 NSsid: 1 VmPeak: 2660 kB VmSize: 2660 kB VmLck: 0 kB VmPin: 0 kB VmHWM: 528 kB VmRSS: 528 kB ... $ docker run --runtime=runsc-vfs2 --rm -it ubuntu:focal bash -c 'cat /proc/self/status' Name: cat State: R (running) Tgid: 1 Pid: 1 PPid: 0 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 4 Groups: VmSize: 10708 kB VmRSS: 3124 kB VmData: 316 kB ... ``` Fixes #6374 PiperOrigin-RevId: 387465655
2021-07-28Merge release-20210720.0-43-g01f7dd442 (automated)gVisor bot
2021-07-28Merge pull request #6358 from zhlhahaha:2232gVisor bot
PiperOrigin-RevId: 387442805
2021-07-28Merge release-20210720.0-40-g44efc282f (automated)gVisor bot
2021-07-28Lock gofer.dentry.dataMu before SetAttr RPC modifying file size.Jamie Liu
PiperOrigin-RevId: 387427887
2021-07-28tunning hasSlot function and fix store wrong value in usedSlotsHoward Zhang
Make hasSlot scan allocated slot, rather than the whole slice. It is supposed to store physicalStart in usedSlot. Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-07-28Merge release-20210720.0-39-g964fb3ca7 (automated)gVisor bot
2021-07-27Don't create an extra fd bitmap to allocate a new fd.Andrei Vagin
2021-07-24Merge release-20210712.0-61-g9ba8c40a3 (automated)gVisor bot
2021-07-23Clean up logic for when a VFS2 gofer regular file close causes a flushf.Jamie Liu
PiperOrigin-RevId: 386577891
2021-07-23Merge release-20210712.0-59-g3d0a93000 (automated)gVisor bot
2021-07-23Don't panic on user-controlled state in semaphore syscalls.Rahat Mahmood
Reported-by: syzbot+beb099a67f670386a367@syzkaller.appspotmail.com PiperOrigin-RevId: 386521361
2021-07-23Merge release-20210712.0-58-g0eea96057 (automated)gVisor bot
2021-07-23Add support for SIOCGIFCONF ioctl in hostinet.Lucas Manning
PiperOrigin-RevId: 386511818
2021-07-22VFS2: remove ext codeKevin Krakauer
We opted to move forward with FUSE instead. PiperOrigin-RevId: 386344258
2021-07-22Merge release-20210712.0-50-g8daeda207 (automated)gVisor bot
2021-07-22Merge pull request #6108 from sudo-sturbia:msgqueue/syscallsgVisor bot
PiperOrigin-RevId: 386323389
2021-07-22Merge release-20210712.0-40-gd5fb4623e (automated)gVisor bot
2021-07-22Replace kernel package types for clone and unshare with linux package types.Jamie Liu
PiperOrigin-RevId: 386312456
2021-07-22Merge release-20210712.0-39-gf1f746ddd (automated)gVisor bot
2021-07-21Add metric to count number of segments acknowledged by DSACK.Nayana Bidari
- Creates new metric "/tcp/segments_acked_with_dsack" to count the number of segments acked with DSACK. - Added check to verify the metric is getting incremented when a DSACK is sent in the unit tests. PiperOrigin-RevId: 386135949
2021-07-21Merge release-20210712.0-36-ga89b2f005 (automated)gVisor bot
2021-07-21Use atomics when checking for parent setgid in VFS2 tmpfs file creation.Jamie Liu
Reported-by: syzbot+59550b48e06cc0d3b638@syzkaller.appspotmail.com PiperOrigin-RevId: 386075453
2021-07-21Merge release-20210712.0-31-g49d9ef498 (automated)gVisor bot
2021-07-20Merge pull request #6220 from laijs:disconnect-fpgVisor bot
PiperOrigin-RevId: 385919423
2021-07-20Merge release-20210712.0-29-g1ad382220 (automated)gVisor bot
2021-07-20Add go:build directives as required by Go 1.17's gofmt.Jamie Liu
PiperOrigin-RevId: 385894869
2021-07-16Merge release-20210712.0-26-g628d7d3a4 (automated)gVisor bot
2021-07-15Fix refcount increments in gofer.filesystem.Sync.Fabricio Voznika
fs.renameMu is released and reacquired in `dentry.destroyLocked()` allowing a dentry to be in `fs.syncableDentries` with a negative reference count. Fixes #5263 PiperOrigin-RevId: 385054337
2021-07-15Merge release-20210712.0-23-gcd45d7b6c (automated)gVisor bot
2021-07-15netstack: support SO_RCVBUFFORCEKevin Krakauer
TCP is fully supported. As with SO_RCVBUF, other transport protocols perform no-ops per DefaultSocketOptionsHandler.OnSetReceiveBufferSize. PiperOrigin-RevId: 385023239
2021-07-14Merge release-20210705.0-21-g85a0a353a (automated)gVisor bot
2021-07-13Replace whitelist with allowlistFabricio Voznika
PiperOrigin-RevId: 384586164
2021-07-13Merge release-20210705.0-20-gd4dce953b (automated)gVisor bot
2021-07-13Do not require O_PATH flag to enable verityChong Cai
Remove the hack in gVisor vfs that allows verity to bypass the O_PATH check, since ioctl is not allowed on fds opened with O_PATH in linux. Verity still opens the lowerFD with O_PATH to open it as a symlink, but the API no longer expects O_PATH to open a fd to be verity enabled. Now only O_FOLLOW should be specified when opening and enabling verity features. PiperOrigin-RevId: 384567833
2021-07-13Implement stubs for msgget(2) and msgctl(IPC_RMID).Zyad A. Ali
Add support for msgget, and msgctl(IPC_RMID), and enable msgqueue syscall tests. Updates #135
2021-07-13Implement Registry.Remove.Zyad A. Ali
Remove implements the behaviour or msgctl(IPC_RMID). Updates #135
2021-07-13Implement Registry.FindOrCreate.Zyad A. Ali
FindOrCreate implements the behaviour of msgget(2). Updates #135
2021-07-13Create package msgqueue.Zyad A. Ali
Create package msgqueue, define primitives to be used for message queues, and add a msgqueue.Registry to IPCNamespace. Updates #135
2021-07-13Create ipc.Registry.Zyad A. Ali
Create ipc.Registry to hold fields, and define functionality common to all SysV registries, and have registries use it.
2021-07-13Create ipc package and ipc.Object.Zyad A. Ali
Create ipc.Object to define fields and functionality used in SysV mechanisms, and have them use it.
2021-07-13apply bitmap for fd_tableHoward Zhang
Apply bitmap in fd_table to record open file fd. It can accelerate the speed of allocating or removing fd from fdtable. Signed-off-by: Howard Zhang <howard.zhang@arm.com>
2021-07-13Merge release-20210705.0-16-ge35d20f79 (automated)gVisor bot
2021-07-12netstack: move SO_SNDBUF/RCVBUF clamping logic out of //pkg/tcpipKevin Krakauer
- Keeps Linux-specific behavior out of //pkg/tcpip - Makes it clearer that clamping is done only for setsockopt calls from users - Removes code duplication PiperOrigin-RevId: 384389809
2021-07-13Merge release-20210705.0-15-g520795aaa (automated)gVisor bot
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