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2019-10-25Merge release-20190806.1-327-g8f029b3 (automated)gVisor bot
2019-10-25Convert DelayOption to the newer/faster SockOpt int type.Ian Gudger
DelayOption is set on all new endpoints in gVisor. PiperOrigin-RevId: 276746791
2019-10-25Merge release-20190806.1-325-gfd59891 (automated)gVisor bot
2019-10-25platform/ptrace: use tgkill instead of killAndrei Vagin
The syscall filters don't allow kill, just tgkill. PiperOrigin-RevId: 276718421
2019-10-24Merge release-20190806.1-318-gd9fd536 (automated)gVisor bot
2019-10-24Handle AT_SYMLINK_NOFOLLOW flag for execveat.Dean Deng
PiperOrigin-RevId: 276441249
2019-10-23Handle AT_EMPTY_PATH flag in execveat.Dean Deng
PiperOrigin-RevId: 276419967
2019-10-23Merge release-20190806.1-315-g6d4d956 (automated)gVisor bot
2019-10-23Merge pull request #641 from tanjianfeng:mastergVisor bot
PiperOrigin-RevId: 276380008
2019-10-23Merge release-20190806.1-309-gfbe6b50 (automated)gVisor bot
2019-10-23Keep minimal available fd to accelerate fd allocationDarcySail
Use fd.next to store the iteration start position, which can be used to accelerate allocating new FDs. And adding the corresponding gtest benchmark to measure performance. @tanjianfeng COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/758 from DarcySail:master 96685ec7886dfe1a64988406831d3bc002b438cc PiperOrigin-RevId: 276351250
2019-10-22Merge release-20190806.1-304-gebe8001 (automated)gVisor bot
2019-10-22Update const names to be Go style.Ian Lewis
PiperOrigin-RevId: 276165962
2019-10-22Merge release-20190806.1-303-ge63ff6d (automated)gVisor bot
2019-10-22platform/ptrace: exit without panic if a stub process has been killed by SIGKILLAndrei Vagin
SIGKILL can be sent only by an user or OOM-killer. In both cases, we don't need to panic. PiperOrigin-RevId: 276150120
2019-10-22Merge release-20190806.1-298-g070a8c2 (automated)gVisor bot
2019-10-21Remove old TODO.Nicolas Lacasse
PiperOrigin-RevId: 275956240
2019-10-21Merge release-20190806.1-297-g0b569b7 (automated)gVisor bot
2019-10-21Add basic implementation of execveat syscall and associated tests.Dean Deng
Allow file descriptors of directories as well as AT_FDCWD. PiperOrigin-RevId: 275929668
2019-10-21Merge release-20190806.1-296-ga9358ce (automated)gVisor bot
2019-10-21Merge release-20190806.1-295-g12235d5 (automated)gVisor bot
2019-10-21AF_PACKET support for netstack (aka epsocket).Kevin Krakauer
Like (AF_INET, SOCK_RAW) sockets, AF_PACKET sockets require CAP_NET_RAW. With runsc, you'll need to pass `--net-raw=true` to enable them. Binding isn't supported yet. PiperOrigin-RevId: 275909366
2019-10-19Merge release-20190806.1-294-g652f7b1 (automated)gVisor bot
2019-10-19Add support for pipes in VFS2.Kevin Krakauer
PiperOrigin-RevId: 275650307
2019-10-17Merge release-20190806.1-286-gdfdbdf1 (automated)gVisor bot
2019-10-17Refactor pipe to support VFS2.Kevin Krakauer
* Pulls common functionality (IO and locking on open) into pipe_util.go. * Adds pipe/vfs.go, which implements a subset of vfs.FileDescriptionImpl. A subsequent change will add support for pipes in memfs. PiperOrigin-RevId: 275322385
2019-10-16Reorder BUILD license and load functions in gvisor.Kevin Krakauer
PiperOrigin-RevId: 275139066
2019-10-16Merge release-20190806.1-282-g8fe48dc (automated)gVisor bot
2019-10-16Add sublevel to kernel versionMichael Pratt
Standard Linux kernel versions are VERSION.PATCHLEVEL.SUBLEVEL. e.g., 4.4.0, even when the sublevel is 0. Match this standard. PiperOrigin-RevId: 275125715
2019-10-16Merge release-20190806.1-281-g9fb5622 (automated)gVisor bot
2019-10-16Merge release-20190806.1-280-gfd4e436 (automated)gVisor bot
2019-10-16Fix problem with open FD when copy up is triggered in overlayfsFabricio Voznika
Linux kernel before 4.19 doesn't implement a feature that updates open FD after a file is open for write (and is copied to the upper layer). Already open FD will continue to read the old file content until they are reopened. This is especially problematic for gVisor because it caches open files. Flag was added to force readonly files to be reopenned when the same file is open for write. This is only needed if using kernels prior to 4.19. Closes #1006 It's difficult to really test this because we never run on tests on older kernels. I'm adding a test in GKE which uses kernels with the overlayfs problem for 1.14 and lower. PiperOrigin-RevId: 275115289
2019-10-16Support O_SYNC and O_DSYNC flags.Nicolas Lacasse
When any of these flags are set, all writes will trigger a subsequent fsync call. This behavior already existed for "write-through" mounts. O_DIRECT is treated as an alias for O_SYNC. Better support coming soon. PiperOrigin-RevId: 275114392
2019-10-16Merge release-20190806.1-279-gbbdcf44 (automated)gVisor bot
2019-10-16Fix syscall changes lost in rebaseMichael Pratt
These syscalls were changed in the amd64 file around the time the arm64 PR was sent out, so their changes got lost. Updates #63 PiperOrigin-RevId: 275114194
2019-10-16Merge release-20190806.1-278-gd22f053 (automated)gVisor bot
2019-10-16Merge pull request #736 from tanjianfeng:fix-unixgVisor bot
PiperOrigin-RevId: 275114157
2019-10-15Minor vfs.FileDescriptionImpl fixes.Jamie Liu
- Pass context.Context to OnClose(). - Pass memmap.MMapOpts to ConfigureMMap() by pointer so that implementations can actually mutate it as required. PiperOrigin-RevId: 274934967
2019-10-15epsocket: support /proc/net/snmpJianfeng Tan
Netstack has its own stats, we use this to fill /proc/net/snmp. Note that some metrics are not recorded in Netstack, which will be shown as 0 in the proc file. Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com> Change-Id: Ie0089184507d16f49bc0057b4b0482094417ebe1
2019-10-15netstack: add counters for tcp CurrEstab and EstabResetsJianfeng Tan
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
2019-10-15hostinet: support /proc/net/snmp and /proc/net/devJianfeng Tan
For hostinet, we inherit the data from host procfs. To to that, we cache the fds for these files for later reads. Fixes #506 Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com> Change-Id: I2f81215477455b9c59acf67e33f5b9af28ee0165
2019-10-15support /proc/net/routeJianfeng Tan
This proc file reports routing information to applications inside the container. Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com> Change-Id: I498e47f8c4c185419befbb42d849d0b099ec71f3
2019-10-15support /proc/net/snmpJianfeng Tan
This proc file contains statistics according to [1]. [1] https://tools.ietf.org/html/rfc2013 Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com> Change-Id: I9662132085edd8a7783d356ce4237d7ac0800d94
2019-10-15Merge release-20190806.1-270-gbfa0bb2 (automated)gVisor bot
2019-10-14Internal change.gVisor bot
PiperOrigin-RevId: 274700093
2019-10-10Merge release-20190806.1-263-g470997c (automated)gVisor bot
2019-10-10Allow for zero byte iovec with MSG_PEEK | MSG_TRUNC in recvmsg.Ian Lewis
This allows for peeking at the length of the next message on a netlink socket without pulling it off the socket's buffer/queue, allowing tools like 'ip' to work. This CL also fixes an issue where dump_done_errno was not included in the NLMSG_DONE messages payload. Issue #769 PiperOrigin-RevId: 274068637
2019-10-10Merge release-20190806.1-262-gc7e901f (automated)gVisor bot
2019-10-10Fix bugs in fragment handling.Bhasker Hariharan
Strengthen the header.IPv4.IsValid check to correctly check for IHL/TotalLength fields. Also add a check to make sure fragmentOffsets + size of the fragment do not cause a wrap around for the end of the fragment. PiperOrigin-RevId: 274049313
2019-10-10Merge release-20190806.1-259-gf8b1859 (automated)gVisor bot
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