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2021-05-27Support SO_BINDTODEVICE in ICMP socketsSam Balana
Adds support for the SO_BINDTODEVICE socket option in ICMP sockets with an accompanying packetimpact test to exercise use of this socket option. Adds a unit test to exercise the NIC selection logic introduced by this change. The remaining unit tests for ICMP sockets need to be added in a subsequent CL. See https://gvisor.dev/issues/5623 for the list of remaining unit tests. Adds a "timeout" field to PacketimpactTestInfo, necessary due to the long runtime of the newly added packetimpact test. Fixes #5678 Fixes #4896 Updates #5623 Updates #5681 Updates #5763 Updates #5956 Updates #5966 Updates #5967 PiperOrigin-RevId: 376271581
2021-05-27nanosleep has to store the finish time in the restart blockAndrei Vagin
nanosleep has to count time that a thread spent in the stopped state. PiperOrigin-RevId: 376258641
2021-05-27Speed up TestBindToDeviceDistributionKevin Krakauer
Testing only TestBindToDeviceDistribution decreased from 24s to 11s, and with TSAN from 186s to 21s. Note: using `t.Parallel()` actually slows the test down. PiperOrigin-RevId: 376251420
2021-05-27Merge pull request #6059 from lubinszARM:pr_arm64_bouncegVisor bot
PiperOrigin-RevId: 376233013
2021-05-27Use fake clocks in all testsTamir Duberstein
...except TCP tests and NDP tests that mutate globals. These will be undertaken later. Updates #5940. PiperOrigin-RevId: 376145608
2021-05-27Avoid warningsTamir Duberstein
- Don't shadow package name - Don't defer in a loop - Remove unnecessary type conversion PiperOrigin-RevId: 376137822
2021-05-26Use the stack RNG everywhereTamir Duberstein
...except in tests. Note this replaces some uses of a cryptographic RNG with a plain RNG. PiperOrigin-RevId: 376070666
2021-05-26Specify subsequent layers as ICMP payloads and add ICMPv6.PointerSam Balana
Moves specification of subsequent layers to the Payload field of the ICMP and ICMPv6 layers. Removes the need to manually encode type-specific ICMP or ICMPv6 headers, such as the "pointer" header of parameter problem messages, in the payload. This is necessary prework to enable matching of more type-specific headers, such as "ident" of echo requests. Fixes a bug where the "reserved" header defined by ICMPv6 RFC 4443 was being incorrectly encoded by ToBytes. This change fixes the implementation by copying the payload into Payload, instead of the MessageBody. PiperOrigin-RevId: 376026420
2021-05-26Clarify commentTamir Duberstein
PiperOrigin-RevId: 376022495
2021-05-26Add verity getdents testsChong Cai
PiperOrigin-RevId: 376001603
2021-05-26Move presence methods from segment to TCPFlagsTamir Duberstein
PiperOrigin-RevId: 376001032
2021-05-26Alias most local importTamir Duberstein
PiperOrigin-RevId: 375977977
2021-05-26Spawn dequeing task via the clockTamir Duberstein
...and use manual clocks in forwarding and link resolution tests. Fixes #5141. Fixes #6012. PiperOrigin-RevId: 375939167
2021-05-26Use the stack clock everywhereTamir Duberstein
Updates #5939. Updates #6012. RELNOTES: n/a PiperOrigin-RevId: 375931554
2021-05-25Initialize Kernel.Timekeeper before network NSTamir Duberstein
PiperOrigin-RevId: 375843579
2021-05-25Use specific fmt verbs (avoid %v)Tamir Duberstein
Remove useless conversions. Avoid unhandled errors. PiperOrigin-RevId: 375834275
2021-05-25Enable verity after mount in verity_mount testChong Cai
PiperOrigin-RevId: 375823719
2021-05-25Merge pull request #6064 from sudo-sturbia:misspellinggVisor bot
PiperOrigin-RevId: 375789776
2021-05-25setgid directories for VFS1 tmpfs, overlayfs, and goferfsKevin Krakauer
PiperOrigin-RevId: 375780659
2021-05-25Use opaque types to represent timeTamir Duberstein
Introduce tcpip.MonotonicTime; replace int64 in tcpip.Clock method returns with time.Time and MonotonicTime to improve type safety and ensure that monotonic clock readings are never compared to wall clock readings. PiperOrigin-RevId: 375775907
2021-05-25Use the stack RNGTamir Duberstein
Remove redundant interface. PiperOrigin-RevId: 375756254
2021-05-25Expect POLLRDHUP on FuchsiaTamir Duberstein
PiperOrigin-RevId: 375749377
2021-05-25Merge pull request #6027 from liornm:fix-unused-flaggVisor bot
PiperOrigin-RevId: 375740504
2021-05-25Merge pull request #5904 from zchee:sync/readme-fix-typogVisor bot
PiperOrigin-RevId: 375731053
2021-05-25Use embedded mutex patternTamir Duberstein
PiperOrigin-RevId: 375728461
2021-05-25Merge pull request #6060 from zchee:tcpip-remove-unused-sfilegVisor bot
PiperOrigin-RevId: 375705200
2021-05-24Move RunImmediatelyScheduledJobs to faketimeTamir Duberstein
Use it everywhere. PiperOrigin-RevId: 375539262
2021-05-24Standardize import aliasTamir Duberstein
PiperOrigin-RevId: 375507298
2021-05-24Fix misspellings.Zyad A. Ali
2021-05-24Handle errorsTamir Duberstein
PiperOrigin-RevId: 375490676
2021-05-24Remove unused pkg/tcpip/time.s dummy assembly fileKoichi Shiraishi
Signed-off-by: Koichi Shiraishi <zchee.io@gmail.com>
2021-05-24arm64 kvm:use TLBI with "Inner Shareable" instead of IPI operationRobin Luk
on Arm64 platform, we can use TLBI with 'IS' instead of IPI operation. According to my understanding, the logic in invalidate() is much like an IPI operation. On Arm64, we can simply perform vmalle1is invalidation here, not use IPI. Reference: https://github.com/torvalds/linux/blob/v5.12/arch/arm64/kvm/mmu.c#L81 Signed-off-by: Robin Luk <lubin.lu@antgroup.com>
2021-05-22Remove detritusTamir Duberstein
- Unused constants - Unused functions - Unused arguments - Unkeyed literals - Unnecessary conversions PiperOrigin-RevId: 375253464
2021-05-21Make many tests build with NDK.Adam Barth
Not all the tests build yet, but many of them do now. PiperOrigin-RevId: 375209824
2021-05-21Prevent infinite loops from being optimized away.gVisor bot
https://github.com/llvm/llvm-project/commit/6c3129549374c0e81e28fd0a21e96f8087b63a78 adds "mustprogress" to loops, which causes empty, side-effect free loops to be optimized away. These loops are intentionally infinite for purposes of testing, so add asm statements that prevent them from being removed. PiperOrigin-RevId: 375188453
2021-05-21Add aggregated NIC statsArthur Sfez
This change also includes miscellaneous improvements: * UnknownProtocolRcvdPackets has been separated into two stats, to specify at which layer the unknown protocol was found (L3 or L4) * MalformedRcvdPacket is not aggregated across every endpoint anymore. Doing it this way did not add useful information, and it was also error-prone (example: ipv6 forgot to increment this aggregated stat, it only incremented its own ipv6.MalformedPacketsReceived). It is now only incremented the NIC. * Removed TestStatsString test which was outdated and had no real utility. PiperOrigin-RevId: 375057472
2021-05-21Clean-up netstack metrics descriptionsArthur Sfez
PiperOrigin-RevId: 375051638
2021-05-20Send SIGPIPE for closed pipes.Ian Lewis
Fixes #5974 Updates #161 PiperOrigin-RevId: 375024740
2021-05-20Merge pull request #6037 from sudo-sturbia:docgVisor bot
PiperOrigin-RevId: 375007632
2021-05-20Add Knative Services tutorialIan Lewis
This adds a new short tutorial on how to run Knative services in gVisor by enabling the runtime class feature flag for Knative. Fixes #3634 PiperOrigin-RevId: 374999528
2021-05-20Add protocol state to TCPINFOMithun Iyer
Add missing protocol state to TCPINFO struct and update packetimpact. This re-arranges the TCP state definitions to align with Linux. Fixes #478 PiperOrigin-RevId: 374996751
2021-05-20Automated rollback of changelist 374319456gVisor bot
PiperOrigin-RevId: 374983747
2021-05-20Suppress log message when there is no errorFabricio Voznika
PiperOrigin-RevId: 374981100
2021-05-20Fix cgroupfs mount racing with unmount.Rahat Mahmood
Previously, mount could discover a hierarchy being destroyed concurrently, which resulted in mount attempting to take a ref on an already destroyed cgroupfs. Reported-by: syzbot+062c0a67798a200f23ee@syzkaller.appspotmail.com PiperOrigin-RevId: 374959054
2021-05-20Format precondition to match style guide.Zyad A. Ali
2021-05-19Send ICMP errors when link address resolution failsNick Brown
Before this change, we would silently drop packets when link resolution failed. 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 link resolution fails. PiperOrigin-RevId: 374699789
2021-05-19Fix nogo analysis.Adin Scannell
Ignore calls to atomic functions in case there is no analysis information. It is unclear why this has broken in some cases, perhaps these functions have been replaced by intrinsics as an optimization? PiperOrigin-RevId: 374682441
2021-05-19Allow use of IFF_ONE_QUEUEliornm
Before fix, use of this flag causes an error. It affects applications like OpenVPN which sets this flag for legacy reasons. According to linux/if_tun.h "This flag has no real effect".
2021-05-18use more explicit netstack dependency restrictionsKevin Krakauer
Fuchsia was unable to build when building netstack transitively depended on golang.org/x/unix constants not defined in Fuchsia. The packages causing this (safemem and usermem) are no longer in the allowlist. Tested that this failed at cl/373651666, and passes now that the dependency has been removed. PiperOrigin-RevId: 374570220
2021-05-18Be explicit about setsid() return values in pty.ccKevin Krakauer
PiperOrigin-RevId: 374570219
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