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2021-05-14Merge release-20210510.0-32-g2b457d9ee (automated)gVisor bot
2021-05-13Check filter table when forwarding IP packetsGhanan Gowripalan
This change updates the forwarding path to perform the forwarding hook with iptables so that the filter table is consulted before a packet is forwarded Updates #170. Test: iptables_test.TestForwardingHook PiperOrigin-RevId: 373702359
2021-05-14Merge release-20210510.0-31-g7ea2dcbae (automated)gVisor bot
2021-05-13Apply SWS avoidance to ACKs with window updatesMithun Iyer
When recovering from a zero-receive-window situation, and asked to send out an ACK, ensure that we apply SWS avoidance in our window updates. Fixes #5984 PiperOrigin-RevId: 373689578
2021-05-13Merge release-20210510.0-27-g84f04cc85 (automated)gVisor bot
2021-05-13Migrate PacketBuffer to use pkg/bufferTing-Yu Wang
Benchmark iperf3: Before After native->runsc 5.14 5.01 (Gbps) runsc->native 4.15 4.07 (Gbps) It did introduce overhead, mainly at the bridge between pkg/buffer and VectorisedView, the ExtractVV method. Once endpoints start migrating away from VV, this overhead will be gone. Updates #2404 PiperOrigin-RevId: 373651666
2021-05-13Merge release-20210510.0-26-gbaa0888f1 (automated)gVisor bot
2021-05-13Rename SetForwarding to SetForwardingDefaultAndAllNICsGhanan Gowripalan
...to make it clear to callers that all interfaces are updated with the forwarding flag and that future NICs will be created with the new forwarding state. PiperOrigin-RevId: 373618435
2021-05-13Merge release-20210503.0-53-ge6a9780f3 (automated)gVisor bot
2021-05-12Fix TODO comments.Ian Lewis
Fix TODO comments referring to incorrect issue numbers. Also fix the link in issue reviver comments to include the right url fragment. PiperOrigin-RevId: 373491821
2021-05-12Merge release-20210503.0-52-g29f4b71eb (automated)gVisor bot
2021-05-12Send ICMP errors when unable to forward fragmented packetsNick Brown
Before this change, we would silently drop packets when the packet was too big to be sent out through the NIC (and, for IPv4 packets, if DF was set). This change brings us into line with RFC 792 (IPv4) and RFC 4443 (IPv6), both of which specify that gateways should return an ICMP error to the sender when the packet can't be fragmented. PiperOrigin-RevId: 373480078
2021-05-12Merge release-20210503.0-51-g9854e5ac4 (automated)gVisor bot
2021-05-12Merge pull request #5975 from kevinGC:align32-mipsgVisor bot
PiperOrigin-RevId: 373466994
2021-05-12Merge release-20210503.0-48-gba6de2153 (automated)gVisor bot
2021-05-12Fix not calling decRef on merged segmentsTing-Yu Wang
This code path is for outgoing packets, and we don't currently do memory accounting on this path. So it wasn't breaking anything. This change did not add a test for ref-counting issue fixed, but will switch to the leak-checking ref-counter later when all ref-counting issues are fixed. PiperOrigin-RevId: 373447913
2021-05-12Merge release-20210503.0-47-g07e32fa69 (automated)gVisor bot
2021-05-12Document design details for refsvfs2 template.Dean Deng
PiperOrigin-RevId: 373437576
2021-05-12Internal change.gVisor bot
PiperOrigin-RevId: 373417636
2021-05-12Use an exhaustive list of architecturesKevin Krakauer
2021-05-12enable building //pkg/tcpip on 32-bit MIPSKevin Krakauer
N.B. we don't explicitly support MIPS, but there's no reason it shouldn't work.
2021-05-12Merge release-20210503.0-45-g8f6bfe257 (automated)gVisor bot
2021-05-11Merge pull request #5694 from kevinGC:align32gVisor bot
PiperOrigin-RevId: 373271579
2021-05-12Merge release-20210503.0-36-g49eb3da98 (automated)gVisor bot
2021-05-11[syserror] Refactor abi/linux.ErrnoZach Koopmans
PiperOrigin-RevId: 373265454
2021-05-11Internal change.gVisor bot
PiperOrigin-RevId: 373221316
2021-05-11Merge release-20210503.0-34-gebebb3059 (automated)gVisor bot
2021-05-11Change AcquireAssignedAddress to use RLock.Bhasker Hariharan
This is a hot path for all incoming packets and we don't need an exclusive lock here as we are not modifying any of the fields protected by mu here. PiperOrigin-RevId: 373181254
2021-05-11Move multicounter testutil functions out of network/ipArthur Sfez
This is in preparation of having aggregated NIC stats at the stack level. These validation functions will be needed outside of the network layer packages to test aggregated NIC stats. PiperOrigin-RevId: 373180565
2021-05-11Merge release-20210503.0-32-g1daabac23 (automated)gVisor bot
2021-05-11Process Hop-by-Hop header when forwarding IPv6 packetsNick Brown
Currently, we process IPv6 extension headers when receiving packets but not when forwarding them. This is fine for the most part, with with one exception: RFC 8200 requires that we process the Hop-by-Hop headers even while forwarding packets. This CL adds that support by invoking the Hop-by-hop logic performed when receiving packets during forwarding as well. PiperOrigin-RevId: 373145478
2021-05-07explicitly 0-index backing arrayKevin Krakauer
2021-05-07Merge release-20210419.0-79-ge691004e0 (automated)gVisor bot
2021-05-07Merge pull request #5758 from zhlhahaha:2125gVisor bot
PiperOrigin-RevId: 372608247
2021-05-07Init all vCPU when initializing machine on ARM64howard zhang
This patch is to solve problem that vCPU timer mess up when adding vCPU dynamically on ARM64, for detailed information please refer to: https://github.com/google/gvisor/issues/5739 There is no influence on x86 and here are main changes for ARM64: 1. create maxVCPUs number of vCPU in machine initialization 2. we want to sync gvisor vCPU number with host CPU number, so use smaller number between runtime.NumCPU and KVM_CAP_MAX_VCPUS to be maxVCPUS 3. put unused vCPUs into architecture-specific map initialvCPUs 4. When machine need to bind a new vCPU with tid, rather than creating new one, it would pick a vCPU from map initalvCPUs 5. change the setSystemTime function. When vCPU number increasing, the time cost for function setTSC(use syscall to set cntvoff) is liner growth from around 300 ns to 100000 ns, and this leads to the function setSystemTimeLegacy can not get correct offset value. 6. initializing StdioFDs and goferFD before a platform to avoid StdioFDs confects with vCPU fds Signed-off-by: howard zhang <howard.zhang@arm.com>
2021-05-07Merge release-20210419.0-77-g339001204 (automated)gVisor bot
2021-05-06Implement /proc/cmdlineSteve Silva
This change implements /proc/cmdline with a basic faux command line "BOOT_IMAGE=/vmlinuz-[version]-gvisor quiet" so apps that may expect it do not receive errors. Also tests for the existence of /proc/cmdline as part of the system call test suite PiperOrigin-RevId: 372462070
2021-05-06fix build constraintsKevin Krakauer
2021-05-06fix rebase errorKevin Krakauer
2021-05-06mark types as saveableKevin Krakauer
2021-05-06Added more commentsKevin Krakauer
2021-05-06Added commentsKevin Krakauer
2021-05-06Moved to atomicbitops and renamed filesKevin Krakauer
2021-05-06Fix alignment issue with 64-bit atomics on 32 bit machinesKevin Krakauer
2021-05-06Merge release-20210419.0-76-g9800fd8e4 (automated)gVisor bot
2021-05-06Solicit routers as long as RAs are handledGhanan Gowripalan
...to conform with Linux's `accept_ra` sysctl option. ``` accept_ra - INTEGER Accept Router Advertisements; autoconfigure using them. It also determines whether or not to transmit Router Solicitations. If and only if the functional setting is to accept Router Advertisements, Router Solicitations will be transmitted. Possible values are: 0 Do not accept Router Advertisements. 1 Accept Router Advertisements if forwarding is disabled. 2 Overrule forwarding behaviour. Accept Router Advertisements even if forwarding is enabled. Functional default: enabled if local forwarding is disabled. disabled if local forwarding is enabled. ``` With this change, routers may be solicited even if the stack is has forwarding enabled, as long as the interface is configured to handle RAs when forwarding is enabled. PiperOrigin-RevId: 372406501
2021-05-05Merge release-20210419.0-72-g8e40cca4b (automated)gVisor bot
2021-05-05Allow handling RAs when forwarding is enabledGhanan Gowripalan
...to conform with Linux's `accept_ra` sysctl option. ``` accept_ra - INTEGER Accept Router Advertisements; autoconfigure using them. It also determines whether or not to transmit Router Solicitations. If and only if the functional setting is to accept Router Advertisements, Router Solicitations will be transmitted. Possible values are: 0 Do not accept Router Advertisements. 1 Accept Router Advertisements if forwarding is disabled. 2 Overrule forwarding behaviour. Accept Router Advertisements even if forwarding is enabled. Functional default: enabled if local forwarding is disabled. disabled if local forwarding is enabled. ``` PiperOrigin-RevId: 372214640
2021-05-05Send ICMP errors when the network is unreachableNick Brown
Before this change, we would silently drop packets when unable to determine a route to the destination host. This change brings us into line with RFC 792 (IPv4) and RFC 4443 (IPv6), both of which specify that gateways should return an ICMP error to the sender when unable to reach the destination. Startblock: has LGTM from asfez and then add reviewer ghanan PiperOrigin-RevId: 372214051
2021-05-05Merge release-20210419.0-69-gbf49a847a (automated)gVisor bot
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