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2019-08-02Merge 960a5e55 (automated)gVisor bot
2019-08-02Plumbing for iptables sockopts.Kevin Krakauer
PiperOrigin-RevId: 261413396
2019-08-02Merge 2906dffc (automated)gVisor bot
2019-08-02Automated rollback of changelist 261191548Rahat Mahmood
PiperOrigin-RevId: 261373749
2019-08-01Merge f2b25aea (automated)gVisor bot
2019-08-01Implement getsockopt(TCP_INFO).Rahat Mahmood
Export some readily-available fields for TCP_INFO and stub out the rest. PiperOrigin-RevId: 261191548
2019-07-31Merge 12c4eb29 (automated)gVisor bot
2019-07-31Fix ICMPv4 EchoReply packet checksumAustin Kiekintveld
The checksum was not being reset before being re-calculated and sent out. This caused the sent checksum to always be `0x0800`. Fixes #605. PiperOrigin-RevId: 260965059
2019-07-31Merge c6e6d92c (automated)gVisor bot
2019-07-31Test connecting UDP sockets to the ANY addressTamir Duberstein
This doesn't currently pass on gVisor. While I'm here, fix a bug where connecting to the v6-mapped v4 address doesn't work in gVisor. PiperOrigin-RevId: 260923961
2019-07-30Merge 7369c63e (automated)gVisor bot
2019-07-30Pass ProtocolAddress instead of its fieldsTamir Duberstein
PiperOrigin-RevId: 260803517
2019-07-30Merge 1decf764 (automated)gVisor bot
2019-07-30Change syscall.POLL to syscall.PPOLL.Haibo Xu
syscall.POLL is not supported on arm64, using syscall.PPOLL to support both the x86 and arm64. refs #63 Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I2c81a063d3ec4e7e6b38fe62f17a0924977f505e COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/543 from xiaobo55x:master ba598263fd3748d1addd48e4194080aa12085164 PiperOrigin-RevId: 260752049
2019-07-24Merge 2ed832ff (automated)gVisor bot
2019-07-24Add support for a subnet prefix length on interface network addressesChris Kuiper
This allows the user code to add a network address with a subnet prefix length. The prefix length value is stored in the network endpoint and provided back to the user in the ProtocolAddress type. PiperOrigin-RevId: 259807693
2019-07-23Merge 12c25656 (automated)gVisor bot
2019-07-23Deduplicate EndpointState.connected someTamir Duberstein
This fixes a bug introduced in cl/251934850 that caused connect-accept-close-connect races to result in the second connect call failiing when it should have succeeded. PiperOrigin-RevId: 259584525
2019-07-19Merge 0e040ba6 (automated)gVisor bot
2019-07-19Handle interfaceAddr and NIC options separately for IP_MULTICAST_IFChris Kuiper
This tweaks the handling code for IP_MULTICAST_IF to ignore the InterfaceAddr if a NICID is given. PiperOrigin-RevId: 258982541
2019-07-18Merge eefa817c (automated)gVisor bot
2019-07-18net/tcp/setockopt: impelment setsockopt(fd, SOL_TCP, TCP_INQ)Andrei Vagin
PiperOrigin-RevId: 258859507
2019-07-16Merge 74dc663b (automated)gVisor bot
2019-07-16Internal change.gVisor bot
PiperOrigin-RevId: 258424489
2019-07-13Merge 9b4d3280 (automated)gVisor bot
2019-07-12Add IPPROTO_RAW, which allows raw sockets to write IP headers.Kevin Krakauer
iptables also relies on IPPROTO_RAW in a way. It opens such a socket to manipulate the kernel's tables, but it doesn't actually use any of the functionality. Blegh. PiperOrigin-RevId: 257903078
2019-07-12Check that IP headers contain correct versionTamir Duberstein
PiperOrigin-RevId: 257888338
2019-07-12Merge 6116473b (automated)gVisor bot
2019-07-12Stub out support for TCP_MAXSEG.Bhasker Hariharan
Adds support to set/get the TCP_MAXSEG value but does not really change the segment sizes emitted by netstack or alter the MSS advertised by the endpoint. This is currently being added only to unblock iperf3 on gVisor. Plumbing this correctly requires a bit more work which will come in separate CLs. PiperOrigin-RevId: 257859112
2019-07-12Merge 69e0affa (automated)gVisor bot
2019-07-03netstack/udp: connect with the AF_UNSPEC address family means disconnectAndrei Vagin
PiperOrigin-RevId: 256433283
2019-07-02Merge pull request #279 from kevinGC:iptables-1-pkggVisor bot
PiperOrigin-RevId: 256231055
2019-06-27Merge 5b41ba5d (automated)gVisor bot
2019-06-27Fix various spelling issues in the documentationMichael Pratt
Addresses obvious typos, in the documentation only. COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/443 from Pixep:fix/documentation-spelling 4d0688164eafaf0b3010e5f4824b35d1e7176d65 PiperOrigin-RevId: 255477779
2019-06-22Merge c1761378 (automated)gVisor bot
2019-06-21Fix the logic for sending zero window updates.Bhasker Hariharan
Today we have the logic split in two places between endpoint Read() and the worker goroutine which actually sends a zero window. This change makes it so that when a zero window ACK is sent we set a flag in the endpoint which can be read by the endpoint to decide if it should notify the worker to send a nonZeroWindow update. The worker now does not do the check again but instead sends an ACK and flips the flag right away. Similarly today when SO_RECVBUF is set the SetSockOpt call has logic to decide if a zero window update is required. Rather than do that we move the logic to the worker goroutine and it can check the zeroWindow flag and send an update if required. PiperOrigin-RevId: 254505447
2019-06-21Deflake TestSimpleReceive failures due to timeoutsBrad Burlage
This test will occasionally fail waiting to read a packet. From repeated runs, I've seen it up to 1.5s for waitForPackets to complete. PiperOrigin-RevId: 254484627
2019-06-14Merge 3d71c627 (automated)gVisor bot
2019-06-13Add support for TCP receive buffer auto tuning.Bhasker Hariharan
The implementation is similar to linux where we track the number of bytes consumed by the application to grow the receive buffer of a given TCP endpoint. This ensures that the advertised window grows at a reasonable rate to accomodate for the sender's rate and prevents large amounts of data being held in stack buffers if the application is not actively reading or not reading fast enough. The original paper that was used to implement the linux receive buffer auto- tuning is available @ https://public.lanl.gov/radiant/pubs/drs/lacsi2001.pdf NOTE: Linux does not implement DRS as defined in that paper, it's just a good reference to understand the solution space. Updates #230 PiperOrigin-RevId: 253168283
2019-06-13Merge add40fd6 (automated)gVisor bot
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-06-12Minor BUILD file cleanup.Adin Scannell
PiperOrigin-RevId: 252918338
2019-06-12Merge branch 'master' into iptables-1-pkgKevin Krakauer
Change-Id: I7457a11de4725e1bf3811420c505d225b1cb6943
2019-06-12Merge 70578806 (automated)gVisor bot
2019-06-12Add support for TCP_CONGESTION socket option.Bhasker Hariharan
This CL also cleans up the error returned for setting congestion control which was incorrectly returning EINVAL instead of ENOENT. PiperOrigin-RevId: 252889093
2019-06-10Merge 589f36ac (automated)gVisor bot
2019-06-10Merge a00157cc (automated)gVisor bot
2019-06-10Fixes to listen backlog handling.Bhasker Hariharan
Changes netstack to confirm to current linux behaviour where if the backlog is full then we drop the SYN and do not send a SYN-ACK. Similarly we allow upto backlog connections to be in SYN-RCVD state as long as the backlog is not full. We also now drop a SYN if syn cookies are in use and the backlog for the listening endpoint is full. Added new tests to confirm the behaviour. Also reverted the change to increase the backlog in TcpPortReuseMultiThread syscall test. Fixes #236 PiperOrigin-RevId: 252500462
2019-06-10Address more comments.Kevin Krakauer
Change-Id: I83ae1079f3dcba6b018f59ab7898decab5c211d2
2019-06-07Address Ian's comments.Kevin Krakauer
Change-Id: I7445033b1970cbba3f2ed0682fe520dce02d8fad
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