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2019-06-24Merge b21b1db7 (automated)gVisor bot
2019-06-24Allow to change logging options using 'runsc debug'Fabricio Voznika
New options are: runsc debug --strace=off|all|function1,function2 runsc debug --log-level=warning|info|debug runsc debug --log-packets=true|false Updates #407 PiperOrigin-RevId: 254843128
2019-06-14Merge a8608c50 (automated)gVisor bot
2019-06-14Enable Receive Buffer Auto-Tuning for runsc.Bhasker Hariharan
Updates #230 PiperOrigin-RevId: 253225078
2019-06-14Merge 3e9b8ecb (automated)gVisor bot
2019-06-13Plumb context through more layers of filesytem.Ian Gudger
All functions which allocate objects containing AtomicRefCounts will soon need a context. PiperOrigin-RevId: 253147709
2019-06-13Merge add40fd6 (automated)gVisor bot
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-06-13Merge 4fdd560b (automated)gVisor bot
2019-06-13Set the HOME environment variable (fixes #293)Ian Lewis
runsc will now set the HOME environment variable as required by POSIX. The user's home directory is retrieved from the /etc/passwd file located on the container's file system during boot. PiperOrigin-RevId: 253120627
2019-06-12Merge bb849bad (automated)gVisor bot
2019-06-12gvisor/runsc: apply seccomp filters before parsing a state fileAndrei Vagin
PiperOrigin-RevId: 252869983
2019-06-12Merge 356d1be1 (automated)gVisor bot
2019-06-12Allow 'runsc do' to run without rootFabricio Voznika
'--rootless' flag lets a non-root user execute 'runsc do'. The drawback is that the sandbox and gofer processes will run as root inside a user namespace that is mapped to the caller's user, intead of nobody. And network is defaulted to '--network=host' inside the root network namespace. On the bright side, it's very convenient for testing: runsc --rootless do ls runsc --rootless do curl www.google.com PiperOrigin-RevId: 252840970
2019-06-11Merge fc746efa (automated)gVisor bot
2019-06-11Add support to mount pod shared tmpfs mountsFabricio Voznika
Parse annotations containing 'gvisor.dev/spec/mount' that gives hints about how mounts are shared between containers inside a pod. This information can be used to better inform how to mount these volumes inside gVisor. For example, a volume that is shared between containers inside a pod can be bind mounted inside the sandbox, instead of being two independent mounts. For now, this information is used to allow the same tmpfs mounts to be shared between containers which wasn't possible before. PiperOrigin-RevId: 252704037
2019-06-11Merge 847c4b97 (automated)gVisor bot
2019-06-11Use net.HardwareAddr for FDBasedLink.LinkAddressFabricio Voznika
It prints formatted to the log. PiperOrigin-RevId: 252699551
2019-06-10Merge a00157cc (automated)gVisor bot
2019-06-07Move //pkg/sentry/memutil to //pkg/memutil.Jamie Liu
PiperOrigin-RevId: 252124156
2019-06-06Implement reclaim-driven MemoryFile eviction.Jamie Liu
PiperOrigin-RevId: 251950660
2019-06-06Add multi-fd support to fdbased endpoint.Bhasker Hariharan
This allows an fdbased endpoint to have multiple underlying fd's from which packets can be read and dispatched/written to. This should allow for higher throughput as well as better scalability of the network stack as number of connections increases. Updates #231 PiperOrigin-RevId: 251852825
2019-06-05Shutdown host sockets on internal shutdownMichael Pratt
This is required to make the shutdown visible to peers outside the sandbox. The readClosed / writeClosed fields were dropped, as they were preventing a shutdown socket from reading the remainder of queued bytes. The host syscalls will return the appropriate errors for shutdown. The control message tests have been split out of socket_unix.cc to make the (few) remaining tests accessible to testing inherited host UDS, which don't support sending control messages. Updates #273 PiperOrigin-RevId: 251763060
2019-06-04Merge f520d0d5 (automated)gVisor bot
2019-06-03Refactor container FS setupFabricio Voznika
No change in functionaly. Added containerMounter object to keep state while the mounts are processed. This will help upcoming changes to share mounts per-pod. PiperOrigin-RevId: 251350096
2019-06-03Remove 'clearStatus' option from container.Wait*PID()Fabricio Voznika
clearStatus was added to allow detached execution to wait on the exec'd process and retrieve its exit status. However, it's not currently used. Both docker and gvisor-containerd-shim wait on the "shim" process and retrieve the exit status from there. We could change gvisor-containerd-shim to use waits, but it will end up also consuming a process for the wait, which is similar to having the shim process. Closes #234 PiperOrigin-RevId: 251349490
2019-06-03Remove spurious periodMichael Pratt
PiperOrigin-RevId: 251288885
2019-06-02Merge 216da0b7 (automated)gVisor bot
2019-05-30Add support for collecting execution trace to runsc.Bhasker Hariharan
Updates #220 PiperOrigin-RevId: 250532302
2019-05-23Set sticky bit to /tmpFabricio Voznika
This is generally done for '/tmp' to prevent accidental deletion of files. More details here: http://man7.org/linux/man-pages/man1/chmod.1.html#RESTRICTED_DELETION_FLAG_OR_STICKY_BIT PiperOrigin-RevId: 249633207 Change-Id: I444a5b406fdef664f5677b2f20f374972613a02b
2019-05-23Initial support for bind mountsFabricio Voznika
Separate MountSource from Mount. This is needed to allow mounts to be shared by multiple containers within the same pod. PiperOrigin-RevId: 249617810 Change-Id: Id2944feb7e4194951f355cbe6d4944ae3c02e468
2019-05-15Cleanup around urpc file payload handlingFabricio Voznika
urpc always closes all files once the RPC function returns. PiperOrigin-RevId: 248406857 Change-Id: I400a8562452ec75c8e4bddc2154948567d572950
2019-05-15gvisor/runsc: use a veth link address instead of generating a new oneAndrei Vagin
PiperOrigin-RevId: 248367340 Change-Id: Id792afcfff9c9d2cfd62cae21048316267b4a924
2019-05-09Implement fallocate(2)Fabricio Voznika
Closes #225 PiperOrigin-RevId: 247508791 Change-Id: I04f47cf2770b30043e5a272aba4ba6e11d0476cc
2019-05-03Fix runsc restore to be compatible with docker start --checkpoint ...Andrei Vagin
Change-Id: I02b30de13f1393df66edf8829fedbf32405d18f8 PiperOrigin-RevId: 246621192
2019-04-30Implement async MemoryFile eviction, and use it in CachingInodeOperations.Jamie Liu
This feature allows MemoryFile to delay eviction of "optional" allocations, such as unused cached file pages. Note that this incidentally makes CachingInodeOperations writeback asynchronous, in the sense that it doesn't occur until eviction; this is necessary because between when a cached page becomes evictable and when it's evicted, file writes (via CachingInodeOperations.Write) may dirty the page. As currently implemented, this feature won't meaningfully impact steady-state memory usage or caching; the reclaimer goroutine will schedule eviction as soon as it runs out of other work to do. Future CLs increase caching by adding constraints on when eviction is scheduled. PiperOrigin-RevId: 246014822 Change-Id: Ia85feb25a2de92a48359eb84434b6ec6f9bea2cb
2019-04-29Change copyright notice to "The gVisor Authors"Michael Pratt
Based on the guidelines at https://opensource.google.com/docs/releasing/authors/. 1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./' 2. Manual fixup of "Google Inc" references. 3. Add AUTHORS file. Authors may request to be added to this file. 4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS. Fixes #209 PiperOrigin-RevId: 245823212 Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-29Allow and document bug ids in gVisor codebase.Nicolas Lacasse
PiperOrigin-RevId: 245818639 Change-Id: I03703ef0fb9b6675955637b9fe2776204c545789
2019-04-26Make raw sockets a toggleable feature disabled by default.Kevin Krakauer
PiperOrigin-RevId: 245511019 Change-Id: Ia9562a301b46458988a6a1f0bbd5f07cbfcb0615
2019-04-23Revert runsc to use RecvMMsg packet dispatcher.Bhasker Hariharan
PacketMMap mode has issues due to a kernel bug. This change reverts us to using recvmmsg instead of a shared ring buffer to dispatch inbound packets. This will reduce performance but should be more stable under heavy load till PacketMMap is updated to use TPacketv3. See #210 for details. Perf difference between recvmmsg vs packetmmap. RecvMMsg : iperf3 -c 172.17.0.2 Connecting to host 172.17.0.2, port 5201 [ 4] local 172.17.0.1 port 43478 connected to 172.17.0.2 port 5201 [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 778 MBytes 6.53 Gbits/sec 4349 188 KBytes [ 4] 1.00-2.00 sec 786 MBytes 6.59 Gbits/sec 4395 212 KBytes [ 4] 2.00-3.00 sec 756 MBytes 6.34 Gbits/sec 3655 161 KBytes [ 4] 3.00-4.00 sec 782 MBytes 6.56 Gbits/sec 4419 175 KBytes [ 4] 4.00-5.00 sec 755 MBytes 6.34 Gbits/sec 4317 187 KBytes [ 4] 5.00-6.00 sec 774 MBytes 6.49 Gbits/sec 4002 173 KBytes [ 4] 6.00-7.00 sec 737 MBytes 6.18 Gbits/sec 3904 191 KBytes [ 4] 7.00-8.00 sec 530 MBytes 4.44 Gbits/sec 3318 189 KBytes [ 4] 8.00-9.00 sec 487 MBytes 4.09 Gbits/sec 2627 188 KBytes [ 4] 9.00-10.00 sec 770 MBytes 6.46 Gbits/sec 4221 170 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 6.99 GBytes 6.00 Gbits/sec 39207 sender [ 4] 0.00-10.00 sec 6.99 GBytes 6.00 Gbits/sec receiver iperf Done. PacketMMap: bhaskerh@gvisor-bench:~/tensorflow$ iperf3 -c 172.17.0.2 Connecting to host 172.17.0.2, port 5201 [ 4] local 172.17.0.1 port 43496 connected to 172.17.0.2 port 5201 [ ID] Interval Transfer Bandwidth Retr Cwnd [ 4] 0.00-1.00 sec 657 MBytes 5.51 Gbits/sec 0 1.01 MBytes [ 4] 1.00-2.00 sec 1021 MBytes 8.56 Gbits/sec 0 1.01 MBytes [ 4] 2.00-3.00 sec 1.21 GBytes 10.4 Gbits/sec 45 1.01 MBytes [ 4] 3.00-4.00 sec 1018 MBytes 8.54 Gbits/sec 15 1.01 MBytes [ 4] 4.00-5.00 sec 1.28 GBytes 11.0 Gbits/sec 45 1.01 MBytes [ 4] 5.00-6.00 sec 1.38 GBytes 11.9 Gbits/sec 0 1.01 MBytes [ 4] 6.00-7.00 sec 1.34 GBytes 11.5 Gbits/sec 45 856 KBytes [ 4] 7.00-8.00 sec 1.23 GBytes 10.5 Gbits/sec 0 901 KBytes [ 4] 8.00-9.00 sec 1010 MBytes 8.48 Gbits/sec 0 923 KBytes [ 4] 9.00-10.00 sec 1.39 GBytes 11.9 Gbits/sec 0 960 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bandwidth Retr [ 4] 0.00-10.00 sec 11.4 GBytes 9.83 Gbits/sec 150 sender [ 4] 0.00-10.00 sec 11.4 GBytes 9.83 Gbits/sec receiver Updates #210 PiperOrigin-RevId: 244968438 Change-Id: Id461b5cbff2dea6fa55cfc108ea246d8f83da20b
2019-04-17Use FD limit and file size limit from hostFabricio Voznika
FD limit and file size limit is read from the host, instead of using hard-coded defaults, given that they effect the sandbox process. Also limit the direct cache to use no more than half if the available FDs. PiperOrigin-RevId: 244050323 Change-Id: I787ad0fdf07c49d589e51aebfeae477324fe26e6
2019-04-17Return error from fdbased.NewFabricio Voznika
RELNOTES: n/a PiperOrigin-RevId: 244031742 Change-Id: Id0cdb73194018fb5979e67b58510ead19b5a2b81
2019-04-09Add TCP checksum verification.Bhasker Hariharan
PiperOrigin-RevId: 242704699 Change-Id: I87db368ca343b3b4bf4f969b17d3aa4ce2f8bd4f
2019-04-04gvisor: Add support for the MS_NOEXEC mount optionAndrei Vagin
https://github.com/google/gvisor/issues/145 PiperOrigin-RevId: 242044115 Change-Id: I8f140fe05e32ecd438b6be218e224e4b7fe05878
2019-04-02Remove obsolete TODO.Kevin Krakauer
PiperOrigin-RevId: 241637164 Change-Id: I65476a739cf38f1818dc47f6ce60638dec8b77a8
2019-04-02Change bug number for duplicate bug.Kevin Krakauer
PiperOrigin-RevId: 241567897 Change-Id: I580eac04f52bb15f4aab7df9822c4aa92e743021
2019-03-29gvisor/runsc: enable generic segmentation offload (GSO)Andrei Vagin
The linux packet socket can handle GSO packets, so we can segment packets to 64K instead of the MTU which is usually 1500. Here are numbers for the nginx-1m test: runsc: 579330.01 [Kbytes/sec] received runsc-gso: 1794121.66 [Kbytes/sec] received runc: 2122139.06 [Kbytes/sec] received and for tcp_benchmark: $ tcp_benchmark --duration 15 --ideal [ 4] 0.0-15.0 sec 86647 MBytes 48456 Mbits/sec $ tcp_benchmark --client --duration 15 --ideal [ 4] 0.0-15.0 sec 2173 MBytes 1214 Mbits/sec $ tcp_benchmark --client --duration 15 --ideal --gso 65536 [ 4] 0.0-15.0 sec 19357 MBytes 10825 Mbits/sec PiperOrigin-RevId: 241072403 Change-Id: I20b03063a1a6649362b43609cbbc9b59be06e6d5
2019-03-14Decouple filemem from platform and move it to pgalloc.MemoryFile.Jamie Liu
This is in preparation for improved page cache reclaim, which requires greater integration between the page cache and page allocator. PiperOrigin-RevId: 238444706 Change-Id: Id24141b3678d96c7d7dc24baddd9be555bffafe4
2019-03-13Allow filesystem.Mount to take an optional interface argument.Nicolas Lacasse
PiperOrigin-RevId: 238360231 Change-Id: I5eaf8d26f8892f77d71c7fbd6c5225ef471cedf1
2019-03-12Make HandleLocal apply to all non-loopback interfaces.Ian Gudger
HandleLocal is very similar conceptually to MULTICAST_LOOP, so we can unify the implementations. This has the benefit of making HandleLocal apply even when the fdbased link endpoint isn't in use. In addition, move looping logic to route creation so that it doesn't need to be run for each packet. This should improve performance. PiperOrigin-RevId: 238099480 Change-Id: I72839f16f25310471453bc9d3fb8544815b25c23
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