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2020-10-12Merge release-20200928.0-93-g93bc0777b (automated)gVisor bot
2020-10-12Merge pull request #4072 from adamliyi:droppt_fixgVisor bot
PiperOrigin-RevId: 336719900
2020-10-12Merge release-20200928.0-91-gd861cd5f1 (automated)gVisor bot
2020-10-12[vfs2] Don't leak disconnected mounts.Dean Deng
PiperOrigin-RevId: 336694658
2020-10-10Merge release-20200928.0-90-gdb36d948f (automated)gVisor bot
2020-10-09TCP Receive window advertisement fixes.Bhasker Hariharan
The fix in commit 028e045da93b7c1c26417e80e4b4e388b86a713d was incorrect as it can cause the right edge of the window to shrink when we announce a zero window due to receive buffer being full as its done before the check for seeing if the window is being shrunk because of the selected window. Further the window was calculated purely on available space but in cases where we are getting full sized segments it makes more sense to use the actual bytes being held. This CL changes to use the lower of the total available space vs the available space in the maximal window we could advertise minus the actual payload bytes being held. This change also cleans up the code so that the window selection logic is not duplicated between getSendParams() and windowCrossedACKThresholdLocked. PiperOrigin-RevId: 336404827
2020-10-10Merge release-20200928.0-89-gd75fe7660 (automated)gVisor bot
2020-10-09RACK: Detect packet reordering.Nayana Bidari
RACK detects packet reordering by checking if the sender received ACK for the packet which has the sequence number less than the already acknowledged packets. PiperOrigin-RevId: 336397526
2020-10-09Include stat in Verity hashChong Cai
PiperOrigin-RevId: 336395445
2020-10-09Merge release-20200928.0-86-ga0ffc84ad (automated)gVisor bot
2020-10-09platform/kvm: remove the unused fieldAndrei Vagin
PiperOrigin-RevId: 336366624
2020-10-09Merge release-20200928.0-84-g6df400dfb (automated)gVisor bot
2020-10-09Merge pull request #4040 from lemin9538:lemin_arm64gVisor bot
PiperOrigin-RevId: 336362818
2020-10-09Merge release-20200928.0-81-g6bbf66227 (automated)gVisor bot
2020-10-09Reduce the cost of sysinfo(2).Jamie Liu
- sysinfo(2) does not actually require a fine-grained breakdown of memory usage. Accordingly, instead of calling pgalloc.MemoryFile.UpdateUsage() to update the sentry's fine-grained memory accounting snapshot, just use pgalloc.MemoryFile.TotalUsage() (which is a single fstat(), and therefore far cheaper). - Use the number of threads in the root PID namespace (i.e. globally) rather than in the task's PID namespace for consistency with Linux (which just reads global variable nr_threads), and add a new method to kernel.PIDNamespace to allow this to be read directly from an underlying map rather than requiring the allocation and population of an intermediate slice. PiperOrigin-RevId: 336353100
2020-10-09Merge release-20200928.0-78-g743327817 (automated)gVisor bot
2020-10-09Merge release-20200928.0-77-g257703c05 (automated)gVisor bot
2020-10-09Automated rollback of changelist 336304024Ghanan Gowripalan
PiperOrigin-RevId: 336339194
2020-10-09Merge release-20200928.0-75-g76a09f0cf (automated)gVisor bot
2020-10-09syscalls: Don't leak a file on the error pathAndrei Vagin
Reported-by: syzbot+bb82fb556d5d0a43f632@syzkaller.appspotmail.com PiperOrigin-RevId: 336324720
2020-10-09Merge release-20200928.0-74-g8566decab (automated)gVisor bot
2020-10-09Automated rollback of changelist 336185457Bhasker Hariharan
PiperOrigin-RevId: 336304024
2020-10-09Merge release-20200928.0-73-g07b1d7413 (automated)gVisor bot
2020-10-08Only block resolution when NUD is incompleteGhanan Gowripalan
When a completed entry exists for a neighbor, there is no need to block while reachability is (re)confirmed. The stack should continue to use the neighbor's link address while NUD is performed. Test: stack_test.TestNeighborCacheReplace PiperOrigin-RevId: 336199043
2020-10-08Merge release-20200928.0-72-g6bad4851d (automated)gVisor bot
2020-10-08Merge release-20200928.0-71-g6768e6c59 (automated)gVisor bot
2020-10-08Implement MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ.Jamie Liu
cf. 2a36ab717e8f "rseq/membarrier: Add MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ" PiperOrigin-RevId: 336186795
2020-10-08Do not resolve routes immediatelyGhanan Gowripalan
When a response needs to be sent to an incoming packet, the stack should consult its neighbour table to determine the remote address's link address. When an entry does not exist in the stack's neighbor table, the stack should queue the packet while link resolution completes. See comments. PiperOrigin-RevId: 336185457
2020-10-08Merge release-20200928.0-70-g40269d0c2 (automated)gVisor bot
2020-10-08Send unicast probes when link address is knownGhanan Gowripalan
When the neighbor table already has link address for a neighbor but is trying to confirm reachability, it may send unicast probes to the neighbor. PiperOrigin-RevId: 336166711
2020-10-08arm64: the mair_el1 value is wrongMin Le
the correct value needed is 0xbbff440c0400 but the const defined is 0x000000000000ffc0 due to the operator error in _MT_EL1_INIT, both kernel and user space memory attribute should be Normal memory not DEVICE_nGnRE Signed-off-by: Min Le <lemin.lm@antgroup.com>
2020-10-08Merge release-20200928.0-67-g0c3134028 (automated)gVisor bot
2020-10-08Change IPv6 reassembly timeout to 60sArthur Sfez
It was originally set to 30s for IPv6 (same as IPv4) but this is not what RFC 8200 prescibes. Linux also defaults to 60s [1]. [1] https://github.com/torvalds/linux/blob/47ec5303d73ea344e84f46660fff693c57641386/include/net/ipv6.h#L456 PiperOrigin-RevId: 336034636
2020-10-08Merge release-20200928.0-66-ga55bd73d4 (automated)gVisor bot
2020-10-07Add staticcheck and staticstyle analyzers.Adin Scannell
This change also adds support to go_stateify for detecting an appropriate receiver name, avoiding a large number of false positives. PiperOrigin-RevId: 335994587
2020-10-07Merge release-20200928.0-64-gb89e43e20 (automated)gVisor bot
2020-10-07Merge pull request #4376 from lubinszARM:pr_usr_tls_newgVisor bot
PiperOrigin-RevId: 335930035
2020-10-07Merge release-20200928.0-61-gecf9a7ef0 (automated)gVisor bot
2020-10-07Add precise synchronization to KVM.Adin Scannell
By using TSC scaling as a hack, we can trick the kernel into setting an offset of exactly zero. Huzzah! PiperOrigin-RevId: 335922019
2020-10-06Merge release-20200928.0-59-g95cac27d0 (automated)gVisor bot
2020-10-06Discard invalid Neighbor SolicitationsPeter Johnston
...per RFC 4861 s7.1.1. PiperOrigin-RevId: 335742851
2020-10-06Merge release-20200928.0-58-g99bf022c2 (automated)gVisor bot
2020-10-06Add support for IPv6 fragmentationArthur Sfez
Most of the IPv4 fragmentation code was moved in the fragmentation package and it is reused by IPv6 fragmentation. Test: - pkg/tcpip/network/ipv4:ipv4_test - pkg/tcpip/network/ipv6:ipv6_test - pkg/tcpip/network/fragmentation:fragmentation_test Fixes #4389 PiperOrigin-RevId: 335714280
2020-10-06Merge release-20200928.0-55-g1336af78d (automated)gVisor bot
2020-10-06Implement membarrier(2) commands other than *_SYNC_CORE.Jamie Liu
Updates #267 PiperOrigin-RevId: 335713923
2020-10-06Fix typo in merkletreegVisor bot
PiperOrigin-RevId: 335709552
2020-10-06Merge release-20200928.0-51-ga57dc67b6 (automated)gVisor bot
2020-10-06[vfs2] Don't leak reference from Mountnamespace.Root().Dean Deng
PiperOrigin-RevId: 335583637
2020-10-06Merge release-20200928.0-50-g798cc6b04 (automated)gVisor bot
2020-10-05Fix IPv4 ICMP echo handler to copy optionsJulian Elischer
The IPv4 RFCs are specific (though obtuse) that an echo response packet needs to contain all the options from the echo request, much as if it been routed back to the sender, though apparently with a new TTL. They suggest copying the incoming packet header to achieve this so that is what this patch does. PiperOrigin-RevId: 335559176
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