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2021-11-04Merge release-20211026.0-33-g23a115dae (automated)gVisor bot
2021-11-04[syserr] Reverse dependency for tcpip.ErrorZach Koopmans
PiperOrigin-RevId: 407638912
2021-10-12Merge release-20210927.0-60-g8682ce689 (automated)gVisor bot
2021-10-12Remove state:"nosave"/"zerovalue" annotations from all waiter.Queues.Jamie Liu
Prior to cl/318010298, //pkg/state couldn't handle pointers to struct fields, which meant that it couldn't handle intrusive linked lists, which meant that it couldn't handle waiter.Queue, which meant that it couldn't handle epoll. As a result, VFS1 unregisters all epoll waiters before saving and re-registers them after loading, and waitable VFS1 file implementations tag their waiter.Queues state:"nosave" (causing them to be skipped by the save/restore machinery) or state:"zerovalue" (causing them to only be checked for zero-value-equality on save). VFS2 required cl/318010298 to support save/restore (due to the Impl inheritance pattern used by vfs.FileDescription, vfs.Dentry, etc.); correspondingly, VFS2 epoll assumes that waiter.Queues *will be* saved and loaded correctly, and VFS2 file implementations do not tag waiter.Queues. Some waiter.Queues, e.g. pipe.Pipe.Queue and kernel.Task.signalQueue, are used by both VFS1 and VFS2 (the latter via signalfd); as a result of the above, tagging these Queues state:"nosave" or state:"zerovalue" breaks VFS2 epoll. Remove VFS1 epoll unregistration before saving (bringing it in line with VFS2), and remove these tags from all waiter.Queues. Also clean up after the epoll test added by cl/402323053, which implied this issue (by instantiating DisableSave in the new test) without reporting it. PiperOrigin-RevId: 402596216
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
2021-08-12Merge 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
2021-07-28Merge release-20210720.0-39-g964fb3ca7 (automated)gVisor bot
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
2021-07-12Merge release-20210705.0-11-ge3fdd1593 (automated)gVisor bot
2021-07-12[syserror] Update syserror to linuxerr for more errors.Zach Koopmans
Update the following from syserror to the linuxerr equivalent: EEXIST EFAULT ENOTDIR ENOTTY EOPNOTSUPP ERANGE ESRCH PiperOrigin-RevId: 384329869
2021-07-01Merge release-20210628.0-16-g590b8d3e9 (automated)gVisor bot
2021-07-01[syserror] Update several syserror errors to linuxerr equivalents.Zach Koopmans
Update/remove most syserror errors to linuxerr equivalents. For list of removed errors, see //pkg/syserror/syserror.go. PiperOrigin-RevId: 382574582
2021-06-30Merge release-20210628.0-14-g6ef268409 (automated)gVisor bot
2021-06-30[syserror] Update syserror to linuxerr for EACCES, EBADF, and EPERM.Zach Koopmans
Update all instances of the above errors to the faster linuxerr implementation. With the temporary linuxerr.Equals(), no logical changes are made. PiperOrigin-RevId: 382306655
2021-06-29Merge release-20210628.0-8-g54b71221c (automated)gVisor bot
2021-06-29[syserror] Change syserror to linuxerr for E2BIG, EADDRINUSE, and EINVALZach Koopmans
Remove three syserror entries duplicated in linuxerr. Because of the linuxerr.Equals method, this is a mere change of return values from syserror to linuxerr definitions. Done with only these three errnos as CLs removing all grow to a significantly large size. PiperOrigin-RevId: 382173835
2021-06-25Merge release-20210614.0-27-gccd2d607e (automated)gVisor bot
2021-06-24Internal change.Jamie Liu
PiperOrigin-RevId: 381375705
2021-06-22Merge release-20210614.0-14-ge1dc1c78e (automated)gVisor bot
2021-06-22[syserror] Add conversions to linuxerr with temporary Equals method.Zach Koopmans
Add Equals method to compare syserror and unix.Errno errors to linuxerr errors. This will facilitate removal of syserror definitions in a followup, and finding needed conversions from unix.Errno to linuxerr. PiperOrigin-RevId: 380909667
2021-04-20Merge release-20210412.0-37-g3fff4c4a0 (automated)gVisor bot
2021-04-20Move SO_RCVBUF to socketops.Nayana Bidari
Fixes #2926, #674 PiperOrigin-RevId: 369457123
2021-03-24Merge release-20210315.0-23-ge7ca2a51a (automated)gVisor bot
2021-03-24Add POLLRDNORM/POLLWRNORM support.Bhasker Hariharan
On Linux these are meant to be equivalent to POLLIN/POLLOUT. Rather than hack these on in sys_poll etc it felt cleaner to just cleanup the call sites to notify for both events. This is what linux does as well. Fixes #5544 PiperOrigin-RevId: 364859977
2021-03-23Merge release-20210315.0-15-gacb4c6288 (automated)gVisor bot
2021-03-03Merge release-20210301.0-5-ga9441aea2 (automated)gVisor bot
2021-03-03[op] Replace syscall package usage with golang.org/x/sys/unix in pkg/.Ayush Ranjan
The syscall package has been deprecated in favor of golang.org/x/sys. Note that syscall is still used in the following places: - pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities are not yet available in golang.org/x/sys. - syscall.Stat_t is still used in some places because os.FileInfo.Sys() still returns it and not unix.Stat_t. Updates #214 PiperOrigin-RevId: 360701387
2021-02-10Merge release-20210201.0-72-g298c129cc (automated)gVisor bot
2021-02-09Add support for setting SO_SNDBUF for unix domain sockets.Bhasker Hariharan
The limits for snd/rcv buffers for unix domain socket is controlled by the following sysctls on linux - net.core.rmem_default - net.core.rmem_max - net.core.wmem_default - net.core.wmem_max Today in gVisor we do not expose these sysctls but we do support setting the equivalent in netstack via stack.Options() method. But AF_UNIX sockets in gVisor can be used without netstack, with hostinet or even without any networking stack at all. Which means ideally these sysctls need to live as globals in gVisor. But rather than make this a big change for now we hardcode the limits in the AF_UNIX implementation itself (which in itself is better than where we were before) where it SO_SNDBUF was hardcoded to 16KiB. Further we bump the initial limit to a default value of 208 KiB to match linux from the paltry 16 KiB we use today. Updates #5132 PiperOrigin-RevId: 356665498
2021-02-09Merge release-20210201.0-65-g2b978d874 (automated)gVisor bot
2021-02-09Collapse code that always returns errorTamir Duberstein
PiperOrigin-RevId: 356536548
2021-01-29Merge release-20210125.0-21-g8d1afb418 (automated)gVisor bot
2021-01-28Change tcpip.Error to an interfaceTamir Duberstein
This makes it possible to add data to types that implement tcpip.Error. ErrBadLinkEndpoint is removed as it is unused. PiperOrigin-RevId: 354437314
2020-12-28Merge release-20201208.0-89-g3ff7324df (automated)gVisor bot
2020-12-23vfs1: don't allow to open socket filesAndrei Vagin
open() has to return ENXIO in this case. O_PATH isn't supported by vfs1. PiperOrigin-RevId: 348820478
2020-10-08Merge release-20200928.0-66-ga55bd73d4 (automated)gVisor bot
2020-09-12Merge release-20200907.0-37-g3ca73841d (automated)gVisor bot
2020-09-11Move the 'marshal' and 'primitive' packages to the 'pkg' directory.Rahat Mahmood
PiperOrigin-RevId: 331256608
2020-09-11Merge release-20200810.0-237-g8d0f76dda (automated)gVisor bot
2020-09-11Merge release-20200907.0-36-g1f4fb817c (automated)gVisor bot
2020-09-11Merge release-20200810.0-236-gb8bee78d0 (automated)gVisor bot
2020-09-11Merge release-20200907.0-32-g831ab2dd9 (automated)gVisor bot
2020-09-11Fix host unix socket to not swallow EOF incorrectly.Bhasker Hariharan
Fixes an error where in case of a receive buffer larger than the host send buffer size for a host backed unix dgram socket we would end up swallowing EOF from recvmsg syscall causing the read() to block forever. PiperOrigin-RevId: 331192810
2020-09-09Refactor tty codebase to use master-replica terminology.Ayush Ranjan
Updates #2972 PiperOrigin-RevId: 329584905
2020-09-09[go-marshal] Enable auto-marshalling for host tty.Ayush Ranjan
PiperOrigin-RevId: 328415633
2020-09-01Merge release-20200818.0-102-g2eaf54dd5 (automated)gVisor bot
2020-09-01Refactor tty codebase to use master-replica terminology.Ayush Ranjan
Updates #2972 PiperOrigin-RevId: 329584905
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