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2018-06-12Fix reference leak for negative direntsIan Gudger
PiperOrigin-RevId: 200306715 Change-Id: I7c80059c77ebd3d9a5d7d48b05c8e7a597f10850
2018-06-12Runsc checkpoint works.Brielle Broder
This is the first iteration of checkpoint that actually saves to a file. Tests for checkpoint are included. Ran into an issue when private unix sockets are enabled. An error message was added for this case and the mutex state was set. PiperOrigin-RevId: 200269470 Change-Id: I28d29a9f92c44bf73dc4a4b12ae0509ee4070e93
2018-06-11Sentry: split tty.queue into its own file.Kevin Krakauer
Minor refactor. line_discipline.go was home to 2 large structs (lineDiscipline and queue), and queue is now large enough IMO to get its own file. Also moves queue locks into the queue struct, making locking simpler. PiperOrigin-RevId: 200080301 Change-Id: Ia75a0e9b3d9ac8d7e5a0f0099a54e1f5b8bdea34
2018-06-07Sentry: very basic terminal echo support.Kevin Krakauer
Adds support for echo to terminals. Echoing is just copying input back out to the user, e.g. when I type "foo" into a terminal, I expect "foo" to be echoed back to my terminal. Also makes the transform function part of the queue, eliminating the need to pass them around together and the possibility of using the wrong transform for a queue. PiperOrigin-RevId: 199655147 Change-Id: I37c490d4fc1ee91da20ae58ba1f884a5c14fd0d8
2018-06-05Add support for rpcinet owned procfs files.Brian Geffon
This change will add support for /proc/sys/net and /proc/net which will be managed and owned by rpcinet. This will allow these inodes to be forward as rpcs. PiperOrigin-RevId: 199370799 Change-Id: I2c876005d98fe55dd126145163bee5a645458ce4
2018-05-17Cleanup docsMichael Pratt
This brings the proc document more up-to-date. PiperOrigin-RevId: 197070161 Change-Id: Iae2cf9dc44e3e748a33f497bb95bd3c10d0c094a
2018-05-17Implement sysv shm.Rahat Mahmood
PiperOrigin-RevId: 197058289 Change-Id: I3946c25028b7e032be4894d61acb48ac0c24d574
2018-05-16Release mutex in BidirectionalConnect to avoid deadlock.Brian Geffon
When doing a BidirectionalConnect we don't need to continue holding the ConnectingEndpoint's mutex when creating the NewConnectedEndpoint as it was held during the Connect. Additionally, we're not holding the baseEndpoint mutex while Unregistering an event. PiperOrigin-RevId: 196875557 Change-Id: Ied4ceed89de883121c6cba81bc62aa3a8549b1e9
2018-05-15sentry: Replaces saving of inet.Stack with retrieval via context.Kevin Krakauer
Previously, inet.Stack was referenced in 2 structs in sentry/socket that can be saved/restored. If an app is saved and restored on another machine, it may try to use the old stack, which will have been replaced by a new stack on the new machine. PiperOrigin-RevId: 196733985 Change-Id: I6a8cfe73b5d7a90749734677dada635ab3389cb9
2018-05-11sentry: Adds canonical mode support.Kevin Krakauer
PiperOrigin-RevId: 196331627 Change-Id: Ifef4485f8202c52481af317cedd52d2ef48cea6a
2018-05-10Skip atime and mtime update when file is backed by host FDFabricio Voznika
When file is backed by host FD, atime and mtime for the host file and the cached attributes in the Sentry must be close together. In this case, the call to update atime and mtime can be skipped. This is important when host filesystem is using overlay because updating atime and mtime explicitly forces a copy up for every file that is touched. PiperOrigin-RevId: 196176413 Change-Id: I3933ea91637a071ba2ea9db9d8ac7cdba5dc0482
2018-05-10Make cachePolicy int to avoid string comparisonFabricio Voznika
PiperOrigin-RevId: 196157086 Change-Id: Ia7f7ffe1bf486b21ef8091e2e8ef9a9faf733dfc
2018-05-09Cache symlinks in addition to files and directories.Nicolas Lacasse
PiperOrigin-RevId: 196051326 Change-Id: I4195b110e9a7d38d1ce1ed9c613971dea1be3bf0
2018-05-09Increment link count in CreateHardlinkFabricio Voznika
Closes #28 PiperOrigin-RevId: 196041391 Change-Id: I5d79f1735b9d72744e8bebc6897002b27df9aa7a
2018-05-08Implement /proc/[pid]/statm.Jamie Liu
PiperOrigin-RevId: 195893391 Change-Id: I645b7042d7f4f9dd54723afde3e5df0986e43160
2018-05-08Capture restore file system corruption errors in exit error.Zhaozhong Ni
PiperOrigin-RevId: 195850822 Change-Id: I4d7bdd8fe129c5ed461b73e1d7458be2cf5680c2
2018-05-08Fix warning: redundant if ...; err != nil check, just return error instead.Ian Gudger
This warning is produced by golint. PiperOrigin-RevId: 195833381 Change-Id: Idd6a7e57e3cfdf00819f2374b19fc113585dc1e1
2018-05-07Fix misspellingsIan Gudger
PiperOrigin-RevId: 195742598 Change-Id: Ibd4a8e4394e268c87700b6d1e50b4b37dfce5182
2018-05-03Fix misspellings.Cyrille Hemidy
PiperOrigin-RevId: 195307689 Change-Id: I499f19af49875a43214797d63376f20ae788d2f4
2018-05-03Don't prematurely remove MountSource from parent's children.Christopher Koch
Otherwise, mounts that fail to be unmounted (EBUSY) will be removed from the children list anyway. At this point, this just affects /proc/pid/mounts and /proc/pid/mountinfo. PiperOrigin-RevId: 195267588 Change-Id: I79114483d73b90f9a7d764a7d513b5b2f251182e
2018-05-01Implement SO_TIMESTAMPIan Gudger
PiperOrigin-RevId: 195047018 Change-Id: I6d99528a00a2125f414e1e51e067205289ec9d3d
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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