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2021-09-02Merge release-20210823.0-44-gdfb3273f8 (automated)gVisor bot
2021-09-01Support sending with packet socketsGhanan Gowripalan
...through the loopback interface, only. This change only supports sending on packet sockets through the loopback interface as the loopback interface is the only interface used in packet socket syscall tests - the other link endpoints are not excercised with the existing test infrastructure. Support for sending on packet sockets through the other interfaces will be added as needed. BUG: https://fxbug.dev/81592 PiperOrigin-RevId: 394368899
2021-09-02Merge release-20210823.0-42-gae3bd3201 (automated)gVisor bot
2021-09-01Extract network datagram endpoint common facilitiesGhanan Gowripalan
...from the UDP endpoint. Datagram-based transport endpoints (e.g. UDP, RAW IP) can share a lot of their write path due to the datagram-based nature of these endpoints. Extract the common facilities from UDP so they can be shared with other transport endpoints (in a later change). Test: UDP syscall tests. PiperOrigin-RevId: 394347774
2021-09-01Merge release-20210823.0-40-gb4de26d6b (automated)gVisor bot
2021-09-01Don't use reflection in fpu.alignedBytes.Jamie Liu
reflect.ValueOf takes an interface{}, so when passed a slice the compiler emits a call to runtime.convTslice to heap-allocate a copy of the slice header. PiperOrigin-RevId: 394310052
2021-09-01Merge release-20210823.0-39-g702fe7d60 (automated)gVisor bot
2021-09-01Cache vdso.so's __kernel_rt_sigreturn location.Jamie Liu
PiperOrigin-RevId: 394300607
2021-09-01Merge release-20210823.0-38-g5da4270a8 (automated)gVisor bot
2021-09-01Propagate vfs.MkdirOptions.ForSyntheticMountpoint to overlay copy-up.Jamie Liu
PiperOrigin-RevId: 394296687
2021-09-01Merge release-20210823.0-37-g927ea16dd (automated)gVisor bot
2021-09-01unix: handle a case when a buffer is overflowedAndrei Vagin
Reported-by: syzbot+1aab6800bd14829609b8@syzkaller.appspotmail.com PiperOrigin-RevId: 394279838
2021-08-30Merge release-20210823.0-31-ga247e227b (automated)gVisor bot
2021-08-30Narrow COW-break on thread stacks.Jamie Liu
PiperOrigin-RevId: 393841270
2021-08-30Merge release-20210823.0-30-g574c6542a (automated)gVisor bot
2021-08-30Use specialFileFD handles in specialFileFD.Stat().Jamie Liu
PiperOrigin-RevId: 393831108
2021-08-27Merge release-20210816.0-52-gf7281c6cb (automated)gVisor bot
2021-08-27Fix lock order violations: mm.mappingMu > Task.mu.Nicolas Lacasse
Document this ordering in mm/mm.go. PiperOrigin-RevId: 393413203
2021-08-25Remove quotedev deviceChong Cai
PiperOrigin-RevId: 392982220
2021-08-24Merge release-20210816.0-37-g18beb6770 (automated)gVisor bot
2021-08-24Merge pull request #6438 from gystemd:tcsetpgrp_SIGTTOUgVisor bot
PiperOrigin-RevId: 392774712
2021-08-24Merge release-20210816.0-29-g2c3d7cb07 (automated)gVisor bot
2021-08-23Merge pull request #6491 from avagin:kvm-mem-slot-overlapgVisor bot
PiperOrigin-RevId: 392554743
2021-08-21platform/kvm: set physical slots without overlappingAndrei Vagin
Right now, the first slot starts with an address of a memory region and its size is faultBlockSize, but the second slot starts with (physicalStart + faultBlockSize) & faultBlockMask. It means they will overlap if a start address of a memory region are not aligned to faultBlockSize. The kernel doesn't allow to add overlapped regions, but we ignore the EEXIST error. Signed-off-by: Andrei Vagin <avagin@google.com>
2021-08-21Merge release-20210806.0-54-g0a15a216d (automated)gVisor bot
2021-08-20Allow gofer.specialFileFDs to be mmapped with a host FD.Jamie Liu
PiperOrigin-RevId: 392102898
2021-08-21Merge release-20210806.0-52-g0e49e0821 (automated)gVisor bot
2021-08-20Fix lock ordering violation introduced in cl/347704347.Nicolas Lacasse
We cannot hold mm.aioManager.mu while calling MUnmap, because MUnmap attempts to aquire mm.mappingMu. This violates the lock order as documented in mm/mm.go. PiperOrigin-RevId: 392102472
2021-08-20Remove experimental warning in the VFS2 README.Jamie Liu
PiperOrigin-RevId: 392078690
2021-08-20Merge release-20210806.0-48-g3ba8df92a (automated)gVisor bot
2021-08-19Cache verity dentriesChong Cai
Add an LRU cache to cache verity dentries when ref count drop to 0. This way we don't need to hash and verify the previous opened files or directories each time. PiperOrigin-RevId: 391880157
2021-08-20Merge release-20210806.0-46-ga77eaf2a9 (automated)gVisor bot
2021-08-19Use MM-mapped I/O instead of buffered copies in gofer.specialFileFD.Jamie Liu
The rationale given for using buffered copies is still valid, but it's unclear whether holding MM locks or allocating buffers is better in practice, and the former is at least consistent with gofer.regularFileFD (and VFS1), making performance easier to reason about. PiperOrigin-RevId: 391877913
2021-08-18Merge release-20210806.0-42-g75b5a4f45 (automated)gVisor bot
2021-08-18Add control configsChong Cai
Also plumber the controls through runsc PiperOrigin-RevId: 391594318
2021-08-18Merge release-20210806.0-39-gb495ae599 (automated)gVisor bot
2021-08-17Merge pull request #6262 from sudo-sturbia:msgqueue/syscalls3gVisor bot
PiperOrigin-RevId: 391416650
2021-08-17Added a SIGTTOU block check in SetForegroundProcessGroupgystemd
2021-08-17Implement stub for msgctl(2).Zyad A. Ali
Add support for msgctl and enable tests. Fixes #135
2021-08-17Implement control operations on msgqueue.Zyad A. Ali
For IPCInfo, update value of MSGSEG constant in abi to avoid overflow in MsgInfo.MsgSeg. MSGSEG was originaly simplified in abi, and is unused (by us and within the kernel), so updating it is okay. Updates #135
2021-08-17Implement ipc.Object.Set and use it in ipc mechanisms.Zyad A. Ali
Set provides functionality of {sem,shm,msg}ctl(IPC_SET).
2021-08-16fix sending of SIGTTOU signal in SetForegroundProcessGroupgystemd
Changed sendSignal to sendSignalLocked because tg.pidns.owner.mu and tg.signalHandlers.mu are already locked in SetForegroundProcess Added a control to verify whether the calling process is ignoring SIGTTOU before sending the signal
2021-08-14Merge release-20210806.0-29-gce58d71fd (automated)gVisor bot
2021-08-13[syserror] Remove pkg syserror.Zach Koopmans
Removes package syserror and moves still relevant code to either linuxerr or to syserr (to be later removed). Internal errors are converted from random types to *errors.Error types used in linuxerr. Internal errors are in linuxerr/internal.go. PiperOrigin-RevId: 390724202
2021-08-13Merge release-20210806.0-27-g6eb8596f7 (automated)gVisor bot
2021-08-13Add Event controlsChong Cai
Add Event controls and implement "stream" commands. PiperOrigin-RevId: 390691702
2021-08-13Merge release-20210806.0-22-gddcf884e9 (automated)gVisor bot
2021-08-12Add Usage controlsChong Cai
Add Usage controls and implement "usage/usagefd" commands. PiperOrigin-RevId: 390507423
2021-08-12Merge release-20210806.0-21-g02370bbd3 (automated)gVisor bot
2021-08-12[syserror] Convert remaining syserror definitions to linuxerr.Zach Koopmans
Convert remaining public errors (e.g. EINTR) from syserror to linuxerr. PiperOrigin-RevId: 390471763
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