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2020-01-21Merge release-20200115.0-50-gd46c397 (automated)gVisor bot
2020-01-21Fixing stuffKevin Krakauer
2020-01-21Add line break to /proc/net filesFabricio Voznika
Some files were missing the last line break. PiperOrigin-RevId: 290808898
2020-01-21Merge branch 'master' into iptables-write-filter-protoKevin Krakauer
2020-01-21Merge release-20200115.0-49-g2ba6198 (automated)gVisor bot
2020-01-21Add syscalls for lgetxattr, fgetxattr, lsetxattr, and fsetxattr.Dean Deng
Note that these simply will use the same logic as getxattr and setxattr, which is not yet implemented for most filesystems. PiperOrigin-RevId: 290800960
2020-01-21Merge release-20200115.0-48-g5f82f09 (automated)gVisor bot
2020-01-21Merge pull request #1558 from kevinGC:iptables-write-input-dropgVisor bot
PiperOrigin-RevId: 290793754
2020-01-20Enable uname syscall support on arm64.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I206f38416a64d7c6a8531d8eb305c6ea239616b8
2020-01-18Merge release-20200115.0-34-g1040159 (automated)gVisor bot
2020-01-18Include the cgroup name in the superblock options in /proc/self/mountinfo.Nicolas Lacasse
Java 11 parses /proc/self/mountinfo for cgroup information. Java 11.0.4 uses the mount path to determine what cgroups existed, but Java 11.0.5 reads the cgroup names from the superblock options. This CL adds the cgroup name to the superblock options if the filesystem type is "cgroup". Since gVisor doesn't actually support cgroups yet, we just infer the cgroup name from the path. PiperOrigin-RevId: 290434323
2020-01-18Merge release-20200115.0-33-g47d8525 (automated)gVisor bot
2020-01-17Filter out received packets with a local source IP address.Eyal Soha
CERT Advisory CA-96.21 III. Solution advises that devices drop packets which could not have correctly arrived on the wire, such as receiving a packet where the source IP address is owned by the device that sent it. Fixes #1507 PiperOrigin-RevId: 290378240
2020-01-17Merge release-20200115.0-32-gf1a5178 (automated)gVisor bot
2020-01-17Fix data race in MountNamespace.resolve.Nicolas Lacasse
We must hold fs.renameMu to access Dirent.parent. PiperOrigin-RevId: 290340804
2020-01-17Merge release-20200115.0-31-g9073521 (automated)gVisor bot
2020-01-17Convert EventMask to uint64Andrei Vagin
It is used for signalfd where the maximum signal is 64. PiperOrigin-RevId: 290331008
2020-01-17Merge release-20200115.0-30-g23fa847 (automated)gVisor bot
2020-01-17Remove addPermanentAddressLockedTamir Duberstein
It was possible to use this function incorrectly, and its separation wasn't buying us anything. PiperOrigin-RevId: 290311100
2020-01-17Merge release-20200115.0-29-g80d0f93 (automated)gVisor bot
2020-01-17Fix data race in tty.queue.readableSize.Nicolas Lacasse
We were setting queue.readable without holding the lock. PiperOrigin-RevId: 290306922
2020-01-17Add /proc/[pid]/cgroups fileFabricio Voznika
Updates #1195 PiperOrigin-RevId: 290298266
2020-01-17Add /proc/net/* filesFabricio Voznika
Updates #1195 PiperOrigin-RevId: 290285420
2020-01-17Merge release-20200115.0-26-gacf2d6d (automated)gVisor bot
2020-01-17Enable stat syscall support on arm64.Haibo Xu
x86 and arm64 use a different stat struct in Linux kernel, so the stat() syscall implementation has to handle the file stat data separately. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: If3986e915a667362257a54e7fbbcc1fe18951015 COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1493 from xiaobo55x:stat f15a216d9297eb9a96d2c483d396a9919145d7fa PiperOrigin-RevId: 290274287
2020-01-17Merge release-20200115.0-18-g345df7c (automated)gVisor bot
2020-01-17Add explanation for implementation of BSD full file locks.Dean Deng
PiperOrigin-RevId: 290272560
2020-01-17Merge release-20200115.0-17-g19b4653 (automated)gVisor bot
2020-01-16Remove unused rpcinet.Adin Scannell
PiperOrigin-RevId: 290198756
2020-01-17Merge release-20200115.0-16-g7a45ae7 (automated)gVisor bot
2020-01-16Implement setxattr for overlays.Dean Deng
PiperOrigin-RevId: 290186303
2020-01-16Merge release-20200115.0-15-g1e7f0c8 (automated)gVisor bot
2020-01-16Bump p9 version, adding corresponding checks to client_file.go.Dean Deng
PiperOrigin-RevId: 290145451
2020-01-16Merge release-20200115.0-14-gab48112 (automated)gVisor bot
2020-01-16Add IfChange/ThenChange reminders in fs/procFabricio Voznika
There is a lot of code duplication for VFSv2 and this serves as remind to keep the copies in sync. Updates #1195 PiperOrigin-RevId: 290139234
2020-01-16Implement tmpfs.SetStat with a size argument.Nicolas Lacasse
This is similar to 'Truncate' in vfs1. Updates https://github.com/google/gvisor/issues/1197 PiperOrigin-RevId: 290139140
2020-01-16Merge release-20200115.0-12-g3dd3275 (automated)gVisor bot
2020-01-16Add more files to /proc/[pid]/*Fabricio Voznika
Files not implemented require VFSv2 plumbing into the kernel. Also, cgroup is not implemented yet. Updates #1195 PiperOrigin-RevId: 290129176
2020-01-16Merge release-20200115.0-9-g07f2584 (automated)gVisor bot
2020-01-16Plumb getting/setting xattrs through InodeOperations and 9p gofer interfaces.Dean Deng
There was a very bare get/setxattr in the InodeOperations interface. Add context.Context to both, size to getxattr, and flags to setxattr. Note that extended attributes are passed around as strings in this implementation, so size is automatically encoded into the value. Size is added in getxattr so that implementations can return ERANGE if a value is larger than can fit in the user-allocated buffer. This prevents us from unnecessarily passing around an arbitrarily large xattr when the user buffer is actually too small. Don't use the existing xattrwalk and xattrcreate messages and define our own, mainly for the sake of simplicity. Extended attributes will be implemented in future commits. PiperOrigin-RevId: 290121300
2020-01-16Merge release-20200115.0-8-g7b7c318 (automated)gVisor bot
2020-01-16Add remaining /proc/* and /proc/sys/* filesFabricio Voznika
Except for one under /proc/sys/net/ipv4/tcp_sack. /proc/pid/* is still incomplete. Updates #1195 PiperOrigin-RevId: 290120438
2020-01-16Merge release-20200115.0-7-gfea1ce6 (automated)gVisor bot
2020-01-16Merge pull request #1272 from lubinszARM:pr_ring0_2gVisor bot
PiperOrigin-RevId: 290113719
2020-01-16Merge release-20200115.0-5-g420d335 (automated)gVisor bot
2020-01-16Enable clone syscall support on arm64.Haibo Xu
sys_clone has many flavors in Linux, and amd64 chose a different one from x86(different arguments order). Ref kernel/fork.c for more info. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I6c8cbc685f4a6e786b171715ab68292fc95cbf48 COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1545 from xiaobo55x:clone 156bd2dfbc63ef5291627b0578ddea77997393b2 PiperOrigin-RevId: 290093953
2020-01-16Merge release-20200115.0-4-ga7a1f00 (automated)gVisor bot
2020-01-15Support upgrading expired/removed IPv6 addresses to permanent SLAAC addressesGhanan Gowripalan
If a previously added IPv6 address (statically or via SLAAC) was removed, it would be left in an expired state waiting to be cleaned up if any references to it were still held. During this time, the same address could be regenerated via SLAAC, which should be allowed. This change supports this scenario. When upgrading an endpoint from temporary or permanentExpired to permanent, respect the new configuration type (static or SLAAC) and deprecated status, along with the new PrimaryEndpointBehavior (which was already supported). Test: stack.TestAutoGenAddrAfterRemoval PiperOrigin-RevId: 289990168
2020-01-16Merge release-20200115.0-3-g815df29 (automated)gVisor bot
2020-01-15Solicit IPv6 routers when a NIC becomes enabled as a hostGhanan Gowripalan
This change adds support to send NDP Router Solicitation messages when a NIC becomes enabled as a host, as per RFC 4861 section 6.3.7. Note, Router Solicitations will only be sent when the stack has forwarding disabled. Tests: Unittests to make sure that the initial Router Solicitations are sent as configured. The tests also validate the sent Router Solicitations' fields. PiperOrigin-RevId: 289964095
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