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2021-04-10Merge release-20210408.0-19-gc84ff9912 (automated)gVisor bot
2021-04-10Use the SecureRNG to generate listener noncesTamir Duberstein
Some other cleanup while I'm here: - Remove unused arguments - Handle some unhandled errors - Remove redundant casts - Remove redundant parens - Avoid shadowing `hash` package name PiperOrigin-RevId: 367816161
2021-04-10Merge release-20210408.0-18-g2fea7d096 (automated)gVisor bot
2021-04-10Don't store accepted endpoints in a channelTamir Duberstein
Use a linked list with cached length and capacity. The current channel is already composed with a mutex and condition variable, and is never used for its channel-like properties. Channels also require eager allocation equal to their capacity, which a linked list does not. PiperOrigin-RevId: 367766626
2021-04-10Merge release-20210408.0-17-gd1edabdca (automated)gVisor bot
2021-04-09iptables: support postrouting hook and SNAT targetToshi Kikuchi
The current SNAT implementation has several limitations: - SNAT source port has to be specified. It is not optional. - SNAT source port range is not supported. - SNAT for UDP is a one-way translation. No response packets are handled (because conntrack doesn't support UDP currently). - SNAT and REDIRECT can't work on the same connection. Fixes #5489 PiperOrigin-RevId: 367750325
2021-04-10Merge release-20210408.0-16-gea7faa505 (automated)gVisor bot
2021-04-09Return integrity failure only if enabledChong Cai
If the parent is not enabled in verity stepLocked(), failure to find the child dentry could just mean an incorrect path. PiperOrigin-RevId: 367733412
2021-04-10Merge release-20210408.0-15-g7420821a7 (automated)gVisor bot
2021-04-09Merge pull request #5767 from avagin:mxcsrgVisor bot
PiperOrigin-RevId: 367730917
2021-04-09Merge release-20210408.0-13-gdc8f6c691 (automated)gVisor bot
2021-04-09Move maxListenBacklog check to sentryMithun Iyer
Move maxListenBacklog check to the caller of endpoint Listen so that it is applicable to Unix domain sockets as well. This was changed in cl/366935921. Reported-by: syzbot+a35ae7cdfdde0c41cf7a@syzkaller.appspotmail.com PiperOrigin-RevId: 367728052
2021-04-09Merge release-20210408.0-12-g973ace6bd (automated)gVisor bot
2021-04-09Rename IsV6LinkLocalAddress to IsV6LinkLocalUnicastAddressGhanan Gowripalan
To match the V4 variant. PiperOrigin-RevId: 367691981
2021-04-09Merge release-20210408.0-11-g070b76fe7 (automated)gVisor bot
2021-04-09Remove duplicate accept queue fullness checkTamir Duberstein
Both code paths perform this check; extract it and remove the comment that suggests it is unique to one of the paths. PiperOrigin-RevId: 367666160
2021-04-09Merge release-20210408.0-10-g1fe5dd8c6 (automated)gVisor bot
2021-04-09Propagate SYN handling errorTamir Duberstein
Both callers of this function still drop this error on the floor, but progress is progress. Updates #4690. PiperOrigin-RevId: 367604788
2021-04-09Merge release-20210408.0-9-gedf30a9bc (automated)gVisor bot
2021-04-08Set root dentry and hash for verity before verifyChong Cai
Set root dentry and root hash in verity fs before we verify the root directory if a root hash is provided. These are used during verification. PiperOrigin-RevId: 367547346
2021-04-09Merge release-20210408.0-8-g496a3654e (automated)gVisor bot
2021-04-08Set parent after child is verifiedChong Cai
We should only set parent after child is verified. Also, if the parent is set before verified, destroyLocked() will try to grab parent.dirMu, which may cause deadlock. PiperOrigin-RevId: 367543655
2021-04-08Merge release-20210322.0-63-gae019e39b (automated)gVisor bot
2021-04-08Merge pull request #5736 from lubinszARM:pr_bblu_tlb_asidgVisor bot
PiperOrigin-RevId: 367523491
2021-04-08Merge release-20210322.0-61-g091badcb9 (automated)gVisor bot
2021-04-08Do not forward link-local packetsGhanan Gowripalan
As per RFC 3927 section 7 and RFC 4291 section 2.5.6. Test: forward_test.TestMulticastForwarding PiperOrigin-RevId: 367519336
2021-04-08Merge release-20210322.0-59-gffeb2a2f5 (automated)gVisor bot
2021-04-08Add Children in merkletree generateChong Cai
This field was missing and should be provided. PiperOrigin-RevId: 367474481
2021-04-08Merge release-20210322.0-58-g9e4a1e31d (automated)gVisor bot
2021-04-08Join all routers group when forwarding is enabledGhanan Gowripalan
See comments inline code for rationale. Test: ip_test.TestJoinLeaveAllRoutersGroup PiperOrigin-RevId: 367449434
2021-04-06Merge release-20210322.0-53-gd7fd00bad (automated)gVisor bot
2021-04-06Do not perform MLD for certain multicast scopesGhanan Gowripalan
...as per RFC 2710 section 5 page 10. Test: ipv6_test.TestMLDSkipProtocol PiperOrigin-RevId: 367031126
2021-04-06Merge release-20210322.0-52-gfb4c700d0 (automated)gVisor bot
2021-04-05Update gofer dentry permissions only when needed.Ayush Ranjan
Without this change, we ask the gofer server to update the permissions whenever the UID, GID or size is updated via SetStat. Consequently, we don not generate inotify events when the permissions actually change due to SGID bit getting cleared. With this change, we will update the permissions only when needed and generate inotify events. PiperOrigin-RevId: 366946842
2021-04-06Merge release-20210322.0-51-g56c69fb0e (automated)gVisor bot
2021-04-05Fix listen backlog handling to be in parity with LinuxMithun Iyer
- Change the accept queue full condition for a listening endpoint to only honor completed (and delivered) connections. - Use syncookies if the number of incomplete connections is beyond listen backlog. This also cleans up the SynThreshold option code as that is no longer used with this change. - Added a new stack option to unconditionally generate syncookies. Similar to sysctl -w net.ipv4.tcp_syncookies=2 on Linux. - Enable keeping of incomplete connections beyond listen backlog. - Drop incoming SYNs only if the accept queue is filled up. - Drop incoming ACKs that complete handshakes when accept queue is full - Enable the stack to accept one more connection than programmed by listen backlog. - Handle backlog argument being zero, negative for listen, as Linux. - Add syscall and packetimpact tests to reflect the changes above. - Remove TCPConnectBacklog test which is polling for completed connections on the client side which is not reflective of whether the accept queue is filled up by the test. The modified syscall test in this CL addresses testing of connecting sockets. Fixes #3153 PiperOrigin-RevId: 366935921
2021-04-06Merge release-20210322.0-50-g7a7fcf2db (automated)gVisor bot
2021-04-05Report task CPU usage through the cpuacct cgroup controller.Rahat Mahmood
PiperOrigin-RevId: 366923274
2021-04-05Merge release-20210322.0-46-g88f198c2a (automated)gVisor bot
2021-04-05Allow default control values to be set for cgroupfs.Rahat Mahmood
PiperOrigin-RevId: 366891806
2021-04-05Merge release-20210322.0-43-ge21a71bff (automated)gVisor bot
2021-04-05Allow user mount for verity fsChong Cai
Allow user mounting a verity fs on an existing mount by specifying mount flags root_hash and lower_path. PiperOrigin-RevId: 366843846
2021-04-05Fail tests when container returns non-zero statusFabricio Voznika
PiperOrigin-RevId: 366839955
2021-04-03Merge release-20210322.0-38-g932c8abd0 (automated)gVisor bot
2021-04-02Implement cgroupfs.Rahat Mahmood
A skeleton implementation of cgroupfs. It supports trivial cpu and memory controllers with no support for hierarchies. PiperOrigin-RevId: 366561126
2021-04-03Merge release-20210322.0-36-g491b106d6 (automated)gVisor bot
2021-04-02Merge release-20210322.0-34-gcc762235c (automated)gVisor bot
2021-04-02Internal change.gVisor bot
PiperOrigin-RevId: 366462448
2021-04-01Merge release-20210322.0-33-gb2ea37401 (automated)gVisor bot
2021-04-01Internal changesBhasker Hariharan
PiperOrigin-RevId: 366344805
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