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2018-05-17Cleanup docsMichael Pratt
This brings the proc document more up-to-date. PiperOrigin-RevId: 197070161 Change-Id: Iae2cf9dc44e3e748a33f497bb95bd3c10d0c094a
2018-05-17Fix capability check for sysv semaphores.Rahat Mahmood
Capabilities for sysv sem operations were being checked against the current task's user namespace. They should be checked against the user namespace owning the ipc namespace for the sems instead, per ipc/util.c:ipcperms(). PiperOrigin-RevId: 197063111 Change-Id: Iba29486b316f2e01ee331dda4e48a6ab7960d589
2018-05-17Implement sysv shm.Rahat Mahmood
PiperOrigin-RevId: 197058289 Change-Id: I3946c25028b7e032be4894d61acb48ac0c24d574
2018-05-17Fix sendto for dual stack UDP socketsIan Gudger
Previously, dual stack UDP sockets bound to an IPv4 address could not use sendto to communicate with IPv4 addresses. Further, dual stack UDP sockets bound to an IPv6 address could use sendto to communicate with IPv4 addresses. Neither of these behaviors are consistent with Linux. PiperOrigin-RevId: 197036024 Change-Id: Ic3713efc569f26196e35bb41e6ad63f23675fc90
2018-05-17Push signal-delivery and wait into the sandbox.Nicolas Lacasse
This is another step towards multi-container support. Previously, we delivered signals directly to the sandbox process (which then forwarded the signal to PID 1 inside the sandbox). Similarly, we waited on a container by waiting on the sandbox process itself. This approach will not work when there are multiple containers inside the sandbox, and we need to signal/wait on individual containers. This CL adds two new messages, ContainerSignal and ContainerWait. These messages include the id of the container to signal/wait. The controller inside the sandbox receives these messages and signals/waits on the appropriate process inside the sandbox. The container id is plumbed into the sandbox, but it currently is not used. We still end up signaling/waiting on PID 1 in all cases. Once we actually have multiple containers inside the sandbox, we will need to keep some sort of map of container id -> pid (or possibly pid namespace), and signal/kill the appropriate process for the container. PiperOrigin-RevId: 197028366 Change-Id: I07b4d5dc91ecd2affc1447e6b4bdd6b0b7360895
2018-05-16Fix another socket Dirent refcount.Christopher Koch
PiperOrigin-RevId: 196893452 Change-Id: I5ea0f851fcabc5eac5859e61f15213323d996337
2018-05-16Verify that when offset address is not null, infile must be seekableChanwit Kaewkasi
Change-Id: Id247399baeac58f6cd774acabd5d1da05e5b5697 PiperOrigin-RevId: 196887768
2018-05-16netstack: make TCP endpoint closed and error state cleanup work synchronous.Zhaozhong Ni
So that when saving TCP endpoint in these states, there is no pending or background activities. Also lift tcp network save rejection error to tcpip package. PiperOrigin-RevId: 196886839 Change-Id: I0fe73750f2743ec7e62d139eb2cec758c5dd6698
2018-05-16Refcount socket Dirents correctly.Christopher Koch
This should fix the socket Dirent memory leak. fs.NewFile takes a new reference. It should hold the *only* reference. DecRef that socket Dirent. Before the globalDirentMap was introduced, a mis-refcounted Dirent would be garbage collected when all references to it were gone. For socket Dirents, this meant that they would be garbage collected when the associated fs.Files disappeared. After the globalDirentMap, Dirents *must* be reference-counted correctly to be garbage collected, as Dirents remove themselves from the global map when their refcount goes to -1 (see Dirent.destroy). That removes the last pointer to that Dirent. PiperOrigin-RevId: 196878973 Change-Id: Ic7afcd1de97c7101ccb13be5fc31de0fb50963f0
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
2018-05-15Fix KVM EFAULT handling.Adin Scannell
PiperOrigin-RevId: 196781718 Change-Id: I889766eed871929cdc247c6b9aa634398adea9c9
2018-05-15Simplify KVM invalidation logic.Adin Scannell
PiperOrigin-RevId: 196780209 Change-Id: I89f39eec914ce54a7c6c4f28e1b6d5ff5a7dd38d
2018-05-15Simplify KVM state handling.Adin Scannell
This also removes the dependency on tmutex. PiperOrigin-RevId: 196764317 Change-Id: I523fb67454318e1a2ca9da3a08e63bfa3c1eeed3
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
2018-05-15Fix problem with sendfile(2) writing less dataFabricio Voznika
When the amount of data read is more than the amount written, sendfile would not adjust 'in file' position and would resume from the wrong location. Closes #33 PiperOrigin-RevId: 196731287 Change-Id: Ia219895dd765016ed9e571fd5b366963c99afb27
2018-05-15Refactor the Sandbox package into Sandbox + Container.Nicolas Lacasse
This is a necessary prerequisite for supporting multiple containers in a single sandbox. All the commands (in cmd package) now call operations on Containers (container package). When a Container first starts, it will create a Sandbox with the same ID. The Sandbox class is now simpler, as it only knows how to create boot/gofer processes, and how to forward commands into the running boot process. There are TODOs sprinkled around for additional support for multiple containers. Most notably, we need to detect when a container is intended to run in an existing sandbox (by reading the metadata), and then have some way to signal to the sandbox to start a new container. Other urpc calls into the sandbox need to pass the container ID, so the sandbox can run the operation on the given container. These are only half-plummed through right now. PiperOrigin-RevId: 196688269 Change-Id: I1ecf4abbb9dd8987a53ae509df19341aaf42b5b0
2018-05-14Disable INVPCID check; it's not used.Adin Scannell
PiperOrigin-RevId: 196615029 Change-Id: Idfa383a9aee6a9397167a4231ce99d0b0e5b9912
2018-05-14Make KVM system call first check.Adin Scannell
PiperOrigin-RevId: 196613447 Change-Id: Ib76902896798f072c3031b0c5cf7b433718928b7
2018-05-14Simplify KVM host map handling.Adin Scannell
PiperOrigin-RevId: 196611084 Change-Id: I6afa6b01e1dcd2aa9776dfc0f910874cc6b8d72c
2018-05-14Ignore spurious KVM emulation failures.Adin Scannell
PiperOrigin-RevId: 196609789 Change-Id: Ie261eea3b7fa05b6c348ca93e229de26cbd4dc7d
2018-05-11sentry: Adds canonical mode support.Kevin Krakauer
PiperOrigin-RevId: 196331627 Change-Id: Ifef4485f8202c52481af317cedd52d2ef48cea6a
2018-05-11netstack: TCP connecting state endpoint save / restore support.Zhaozhong Ni
PiperOrigin-RevId: 196325647 Change-Id: I850eb4a29b9c679da4db10eb164bbdf967690663
2018-05-11netstack: release rcv lock after ping socket save is done.Zhaozhong Ni
PiperOrigin-RevId: 196324694 Change-Id: Ia3a48976433f21622eacb4a38fefe7143ca5e31b
2018-05-11Remove error return from AddressSpace.Release()Michael Pratt
PiperOrigin-RevId: 196291289 Change-Id: Ie3487be029850b0b410b82416750853a6c4a2b00
2018-05-11Implement MAP_32BIT.Jamie Liu
PiperOrigin-RevId: 196281052 Change-Id: Ie620a0f983a1bf2570d0003d4754611879335c1c
2018-05-11Update README to point to nightly builds.Nicolas Lacasse
The "install from source" section is moved under "advanced" header, right before the testing section. PiperOrigin-RevId: 196271666 Change-Id: I653ac0a2fa4661c96a0cb3daf3528c2109fed8d7
2018-05-10Fix failure to rename directoryFabricio Voznika
os.Rename validates that the target doesn't exist, which is different from syscall.Rename which replace the target if both are directories. fsgofer needs the syscall behavior. PiperOrigin-RevId: 196194630 Change-Id: I87d08cad88b5ef310b245cd91647c4f5194159d8
2018-05-10Display the current git revision in the info blockChanwit Kaewkasi
Change-Id: I9737cc680968033ba82c95bb04cc482fcaa12642 PiperOrigin-RevId: 196192683
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
2018-05-10Fix nightly release upload path.Nicolas Lacasse
The "nightly/latest" was duplicated. PiperOrigin-RevId: 196156453 Change-Id: Iccac65d870f3eb44c4bd97bcbed5cc436cb1d3c9
2018-05-10Open file as read-write when mount points to a fileFabricio Voznika
This is to allow files mapped directly, like /etc/hosts, to be writable. Closes #40 PiperOrigin-RevId: 196155920 Change-Id: Id2027e421cef5f94a0951c3e18b398a77c285bbd
2018-05-10Upload the nightly release to a "nightly/latest" bucket for easy download.Nicolas Lacasse
We also upload to a path with the current date, so that previous builds are archived. Since these builds only include the date (and not time) their links are somewhat discoverable as well. PiperOrigin-RevId: 196147475 Change-Id: I54792d7a4ba2a7af24a51cd9b9f153c7744b310b
2018-05-10Put the http dependencies first in the WORKSPACE file.Nicolas Lacasse
PiperOrigin-RevId: 196131690 Change-Id: I3a4eec0dcca654380ea229e3ae388ca416200110
2018-05-10Build nightly runsc releases with Kokoro.Nicolas Lacasse
PiperOrigin-RevId: 196129010 Change-Id: I655eb3eecf24ffff475b3882ec55a8b55e6d2f36
2018-05-10Use the go_repository rule from the Gazelle repo.Nicolas Lacasse
The one from rules_go is being deprecated. PiperOrigin-RevId: 196128132 Change-Id: I7a4ab32696a1bcd221b0585b7a4e8109462a3609
2018-05-09Cache symlinks in addition to files and directories.Nicolas Lacasse
PiperOrigin-RevId: 196051326 Change-Id: I4195b110e9a7d38d1ce1ed9c613971dea1be3bf0
2018-05-09Small readme tweak.Nicolas Lacasse
Change-Id: Ibbb94cfd901d72d879657aca38bf3db1580f0d62 PiperOrigin-RevId: 196043734
2018-05-09Increment link count in CreateHardlinkFabricio Voznika
Closes #28 PiperOrigin-RevId: 196041391 Change-Id: I5d79f1735b9d72744e8bebc6897002b27df9aa7a
2018-05-09Return better errors from Docker when runsc fails to start.Nicolas Lacasse
Two changes in this CL: First, make the "boot" process sleep when it encounters an error to give the controller time to send the error back to the "start" process. Otherwise the "boot" process exits immediately and the control connection errors with EOF. Secondly, open the log file with O_APPEND, not O_TRUNC. Docker uses the same log file for all runtime commands, and setting O_TRUNC causes them to get destroyed. Furthermore, containerd parses these log files in the event of an error, and it does not like the file being truncated out from underneath it. Now, when trying to run a binary that does not exist in the image, the error message is more reasonable: $ docker run alpine /not/found docker: Error response from daemon: OCI runtime start failed: /usr/local/google/docker/runtimes/runscd did not terminate sucessfully: error starting sandbox: error starting application [/not/found]: failed to create init process: no such file or directory Fixes #32 PiperOrigin-RevId: 196027084 Change-Id: Iabc24c0bdd8fc327237acc051a1655515f445e68
2018-05-09Internal change.Googler
PiperOrigin-RevId: 195980843 Change-Id: I066f9696b69e92e144c2c8d2c2aa52c546df94fb
2018-05-08state: serialize string as bytes instead of protobuf string.Zhaozhong Ni
Protobuf strings have to be UTF-8 encoded or 7-bit ASCII. PiperOrigin-RevId: 195902557 Change-Id: I9800afd47ecfa6615e28a2cce7f2532f04f10763
2018-05-08Implement /proc/[pid]/statm.Jamie Liu
PiperOrigin-RevId: 195893391 Change-Id: I645b7042d7f4f9dd54723afde3e5df0986e43160
2018-05-08Bump Bazel rules_go to v0.12.0, and Go toolchain to v1.10.2Nicolas Lacasse
PiperOrigin-RevId: 195866234 Change-Id: I81404d44a45b41c6cb81f83bd7b7a8d8493f5c98
2018-05-08Capture restore file system corruption errors in exit error.Zhaozhong Ni
PiperOrigin-RevId: 195850822 Change-Id: I4d7bdd8fe129c5ed461b73e1d7458be2cf5680c2
2018-05-08Correct definition of SysV IPC structures.Jamie Liu
PiperOrigin-RevId: 195849066 Change-Id: If2146c7ce649522f86e661c5e52a9983345d6967
2018-05-08Use the containerd annotation instead of detecting the "pause" application.Nicolas Lacasse
FIXED=72380268 PiperOrigin-RevId: 195846596 Change-Id: Ic87fed1433482a514631e1e72f5ee208e11290d1
2018-05-08Error if container requires AppArmor, SELinux or seccompFabricio Voznika
Closes #35 PiperOrigin-RevId: 195840128 Change-Id: I31c1ad9b51ec53abb6f0b485d35622d4e9764b29
2018-05-08Sentry: always use "best speed" compression for save and remove the option.Zhaozhong Ni
PiperOrigin-RevId: 195835861 Change-Id: Ib696b1b571a6b061725a33c535cd7215fe518b97
2018-05-08Reword misleading log lineIan Gudger
PiperOrigin-RevId: 195834310 Change-Id: I8af748f75ab87ad1cd29c4c8904d07fd729ba6c9
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