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2021-09-21Merge release-20210906.0-53-gc485602de (automated)gVisor bot
2021-09-21socket/unix: clean up socket queue after releasing a queue lockAndrei Vagin
A socket queue can contain sockets (others and this one). We have to avoid taking locks of the same class where it is possible. PiperOrigin-RevId: 398100744
2021-09-19Merge release-20210906.0-46-g89a0011c1 (automated)gVisor bot
2021-09-19Support IPV6_RECVPKTINFO on UDP socketsGhanan Gowripalan
PiperOrigin-RevId: 397631833
2021-09-17Merge release-20210906.0-40-g7dacdbef5 (automated)gVisor bot
2021-09-17Allow rebinding packet socket protocolGhanan Gowripalan
...to change the network protocol a packet socket may receive packets from. This CL is a portion of an originally larger CL that was split with https://github.com/google/gvisor/commit/a8ad692fd36cbaf7f5a6b9af39d601053dbee338 being the dependent CL. That CL (accidentally) included the change in the endpoint's `afterLoad` method to take the required lock when accessing the endpoint's netProto field. That change should have been in this CL. The CL that made the change mentioned in the commit message is cl/396946187. PiperOrigin-RevId: 397412582
2021-09-15Merge release-20210906.0-26-g8b56b6b83 (automated)gVisor bot
2021-09-15Pass address properties in a single structTony Gong
Replaced the current AddAddressWithOptions method with AddAddressWithProperties which passes all address properties in a single AddressProperties type. More properties that need to be configured in the future are expected, so adding a type makes adding them easier. PiperOrigin-RevId: 396930729
2021-09-15Merge release-20210906.0-25-g149ca0096 (automated)gVisor bot
2021-09-15[bind] Return EINVAL for under sized addressGhanan Gowripalan
...and EAFNOSUPPORT for unexpected address family. To comply with Linux. Updates #6021, #6575. PiperOrigin-RevId: 396893590
2021-09-10Merge release-20210830.0-30-g2572af388 (automated)gVisor bot
2021-09-09Remove linux-compat loopback hacks from packet endpointGhanan Gowripalan
Previously, gVisor did not represent loopback devices as an ethernet device as Linux does. To maintain Linux API compatibility for packet sockets, a workaround was used to add an ethernet header if a link header was not already present in the packet buffer delivered to a packet endpoint. However, this workaround is a bug for non-ethernet based interfaces; not all links use an ethernet header (e.g. pure L3/TUN interfaces). As of 3b4bb947517d0d9010120aaa1c3989fd6abf278e, gVisor represents loopback devices as an ethernet-based device so this workaround can now be removed. BUG: https://fxbug.dev/81592 Updates #6530, #6531. PiperOrigin-RevId: 395819151
2021-09-02Merge release-20210823.0-48-g9149b2cef (automated)gVisor bot
2021-09-02unix: avoid taking two endpoint locksAndrei Vagin
If we want to take two endpoint locks, we need to be sure that we always take them in the same order. Accept() locks the listening endpoint to work with acceptedChan and then it calls GetLocalAddress that locks an accepted endpoint. Actually, we can release the listening endpoint lock before calling GetLocalAddress. Reported-by: syzbot+f52bd603f51a4ae91054@syzkaller.appspotmail.com PiperOrigin-RevId: 394553823
2021-09-02Merge release-20210823.0-44-gdfb3273f8 (automated)gVisor bot
2021-09-01Support sending with packet socketsGhanan Gowripalan
...through the loopback interface, only. This change only supports sending on packet sockets through the loopback interface as the loopback interface is the only interface used in packet socket syscall tests - the other link endpoints are not excercised with the existing test infrastructure. Support for sending on packet sockets through the other interfaces will be added as needed. BUG: https://fxbug.dev/81592 PiperOrigin-RevId: 394368899
2021-09-02Merge release-20210823.0-42-gae3bd3201 (automated)gVisor bot
2021-09-01Extract network datagram endpoint common facilitiesGhanan Gowripalan
...from the UDP endpoint. Datagram-based transport endpoints (e.g. UDP, RAW IP) can share a lot of their write path due to the datagram-based nature of these endpoints. Extract the common facilities from UDP so they can be shared with other transport endpoints (in a later change). Test: UDP syscall tests. PiperOrigin-RevId: 394347774
2021-09-01Merge release-20210823.0-37-g927ea16dd (automated)gVisor bot
2021-09-01unix: handle a case when a buffer is overflowedAndrei Vagin
Reported-by: syzbot+1aab6800bd14829609b8@syzkaller.appspotmail.com PiperOrigin-RevId: 394279838
2021-08-14Merge release-20210806.0-29-gce58d71fd (automated)gVisor bot
2021-08-13[syserror] Remove pkg syserror.Zach Koopmans
Removes package syserror and moves still relevant code to either linuxerr or to syserr (to be later removed). Internal errors are converted from random types to *errors.Error types used in linuxerr. Internal errors are in linuxerr/internal.go. PiperOrigin-RevId: 390724202
2021-08-12Merge release-20210806.0-21-g02370bbd3 (automated)gVisor bot
2021-08-12[syserror] Convert remaining syserror definitions to linuxerr.Zach Koopmans
Convert remaining public errors (e.g. EINTR) from syserror to linuxerr. PiperOrigin-RevId: 390471763
2021-08-12Merge release-20210726.0-57-g3416a3db7 (automated)gVisor bot
2021-08-12Merge release-20210726.0-56-g96459f559 (automated)gVisor bot
2021-08-12Add support for TCP send buffer auto tuning.Nayana Bidari
Send buffer size in TCP indicates the amount of bytes available for the sender to transmit. This change will allow TCP to update the send buffer size when - TCP enters established state. - ACK is received. The auto tuning is disabled when the send buffer size is set with the SO_SNDBUF option. PiperOrigin-RevId: 390312274
2021-07-30Merge release-20210726.0-17-g979d6e7d7 (automated)gVisor bot
2021-07-30Support RTM_DELLINKZeling Feng
This change will allow us to remove the default link in a packetimpact test so we can reduce indeterministic behaviors as required in https://fxbug.dev/78430. This will also help with testing #1388. Updates #578, #1388. PiperOrigin-RevId: 387896847
2021-07-28Merge release-20210720.0-39-g964fb3ca7 (automated)gVisor bot
2021-07-23Merge release-20210712.0-58-g0eea96057 (automated)gVisor bot
2021-07-23Add support for SIOCGIFCONF ioctl in hostinet.Lucas Manning
PiperOrigin-RevId: 386511818
2021-07-22Merge release-20210712.0-39-gf1f746ddd (automated)gVisor bot
2021-07-21Add metric to count number of segments acknowledged by DSACK.Nayana Bidari
- Creates new metric "/tcp/segments_acked_with_dsack" to count the number of segments acked with DSACK. - Added check to verify the metric is getting incremented when a DSACK is sent in the unit tests. PiperOrigin-RevId: 386135949
2021-07-20Merge release-20210712.0-29-g1ad382220 (automated)gVisor bot
2021-07-20Add go:build directives as required by Go 1.17's gofmt.Jamie Liu
PiperOrigin-RevId: 385894869
2021-07-15Merge release-20210712.0-23-gcd45d7b6c (automated)gVisor bot
2021-07-15netstack: support SO_RCVBUFFORCEKevin Krakauer
TCP is fully supported. As with SO_RCVBUF, other transport protocols perform no-ops per DefaultSocketOptionsHandler.OnSetReceiveBufferSize. PiperOrigin-RevId: 385023239
2021-07-13Merge release-20210705.0-16-ge35d20f79 (automated)gVisor bot
2021-07-12netstack: move SO_SNDBUF/RCVBUF clamping logic out of //pkg/tcpipKevin Krakauer
- Keeps Linux-specific behavior out of //pkg/tcpip - Makes it clearer that clamping is done only for setsockopt calls from users - Removes code duplication PiperOrigin-RevId: 384389809
2021-07-13Merge release-20210705.0-15-g520795aaa (automated)gVisor bot
2021-07-12Merge release-20210705.0-11-ge3fdd1593 (automated)gVisor bot
2021-07-12[syserror] Update syserror to linuxerr for more errors.Zach Koopmans
Update the following from syserror to the linuxerr equivalent: EEXIST EFAULT ENOTDIR ENOTTY EOPNOTSUPP ERANGE ESRCH PiperOrigin-RevId: 384329869
2021-07-02Merge release-20210628.0-22-gfcf0ff2fc (automated)gVisor bot
2021-07-02Merge pull request #6258 from liornm:fix-iptables-input-interfacegVisor bot
PiperOrigin-RevId: 382788878
2021-07-01Merge release-20210628.0-16-g590b8d3e9 (automated)gVisor bot
2021-07-01[syserror] Update several syserror errors to linuxerr equivalents.Zach Koopmans
Update/remove most syserror errors to linuxerr equivalents. For list of removed errors, see //pkg/syserror/syserror.go. PiperOrigin-RevId: 382574582
2021-06-30Merge release-20210628.0-14-g6ef268409 (automated)gVisor bot
2021-06-30[syserror] Update syserror to linuxerr for EACCES, EBADF, and EPERM.Zach Koopmans
Update all instances of the above errors to the faster linuxerr implementation. With the temporary linuxerr.Equals(), no logical changes are made. PiperOrigin-RevId: 382306655
2021-06-30Merge release-20210628.0-9-g90dbb4b0c (automated)gVisor bot
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