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2020-01-22Merge release-20200115.0-77-g1d97ada (automated)gVisor bot
2020-01-22Use embedded mutex pattern for stack.NICGhanan Gowripalan
- Wrap NIC's fields that should only be accessed while holding the mutex in an anonymous struct with the embedded mutex. - Make sure NIC's spoofing and promiscuous mode flags are only read while holding the NIC's mutex. - Use the correct endpoint when sending DAD messages. - Do not hold the NIC's lock when sending DAD messages. This change does not introduce any behaviour changes. Tests: Existing tests continue to pass. PiperOrigin-RevId: 291036251
2020-01-22Error marshalling the matcher.Kevin Krakauer
The iptables binary is looking for libxt_.so when it should be looking for libxt_udp.so, so it's having an issue reading the data in xt_match_entry. I think it may be an alignment issue. Trying to fix this is leading to me fighting with the metadata struct, so I'm gonna go kill that.
2020-01-22Merge release-20200115.0-74-g0e7f417 (automated)gVisor bot
2020-01-22Address GitHub comments.Kevin Krakauer
2020-01-22gonet PacketConn.RemoteAddr() incorrectly returns *net.TCPAddr, should be ↵Marek Majkowski
*net.UDPAddr PacketConn.LocalAddr() already returns *net.UDPAddr correctly.
2020-01-21Adding serialization.Kevin Krakauer
2020-01-21Merge pull request #1492 from majek:err_typo_in_netstack_testsgVisor bot
PiperOrigin-RevId: 290840370
2020-01-21Merge release-20200115.0-56-g7e6fbc6 (automated)gVisor bot
2020-01-21Add a new TCP stat for current open connections.Mithun Iyer
Such a stat accounts for all connections that are currently established and not yet transitioned to close state. Also fix bug in double increment of CurrentEstablished stat. Fixes #1579 PiperOrigin-RevId: 290827365
2020-01-21Passes all filter table UDP tests.Kevin Krakauer
2020-01-21Removed TCP work (saved in ipt-tcp-match).Kevin Krakauer
2020-01-21Add UDP matchers.Kevin Krakauer
2020-01-21Fixing stuffKevin Krakauer
2020-01-21Merge branch 'master' into iptables-write-filter-protoKevin Krakauer
2020-01-21Merge release-20200115.0-48-g5f82f09 (automated)gVisor bot
2020-01-21Merge pull request #1558 from kevinGC:iptables-write-input-dropgVisor bot
PiperOrigin-RevId: 290793754
2020-01-18Merge release-20200115.0-33-g47d8525 (automated)gVisor bot
2020-01-17Filter out received packets with a local source IP address.Eyal Soha
CERT Advisory CA-96.21 III. Solution advises that devices drop packets which could not have correctly arrived on the wire, such as receiving a packet where the source IP address is owned by the device that sent it. Fixes #1507 PiperOrigin-RevId: 290378240
2020-01-17Merge release-20200115.0-30-g23fa847 (automated)gVisor bot
2020-01-17Remove addPermanentAddressLockedTamir Duberstein
It was possible to use this function incorrectly, and its separation wasn't buying us anything. PiperOrigin-RevId: 290311100
2020-01-16Merge release-20200115.0-4-ga7a1f00 (automated)gVisor bot
2020-01-15Support upgrading expired/removed IPv6 addresses to permanent SLAAC addressesGhanan Gowripalan
If a previously added IPv6 address (statically or via SLAAC) was removed, it would be left in an expired state waiting to be cleaned up if any references to it were still held. During this time, the same address could be regenerated via SLAAC, which should be allowed. This change supports this scenario. When upgrading an endpoint from temporary or permanentExpired to permanent, respect the new configuration type (static or SLAAC) and deprecated status, along with the new PrimaryEndpointBehavior (which was already supported). Test: stack.TestAutoGenAddrAfterRemoval PiperOrigin-RevId: 289990168
2020-01-16Merge release-20200115.0-3-g815df29 (automated)gVisor bot
2020-01-15Solicit IPv6 routers when a NIC becomes enabled as a hostGhanan Gowripalan
This change adds support to send NDP Router Solicitation messages when a NIC becomes enabled as a host, as per RFC 4861 section 6.3.7. Note, Router Solicitations will only be sent when the stack has forwarding disabled. Tests: Unittests to make sure that the initial Router Solicitations are sent as configured. The tests also validate the sent Router Solicitations' fields. PiperOrigin-RevId: 289964095
2020-01-15Merge release-20191213.0-119-g275ac8c (automated)gVisor bot
2020-01-15Bugfix to terminate the protocol loop on StateError.Bhasker Hariharan
The change to introduce worker goroutines can cause the endpoint to transition to StateError and we should terminate the loop rather than let the endpoint transition to a CLOSED state as we do in case the endpoint enters TIME-WAIT/CLOSED. Moving to a closed state would cause the actual error to not be propagated to any read() calls etc. PiperOrigin-RevId: 289923568
2020-01-14Address Nic's comments.Kevin Krakauer
2020-01-14Merge release-20191213.0-116-ga611fda (automated)gVisor bot
2020-01-14Changes TCP packet dispatch to use a pool of goroutines.Bhasker Hariharan
All inbound segments for connections in ESTABLISHED state are delivered to the endpoint's queue but for every segment delivered we also queue the endpoint for processing to a selected processor. This ensures that when there are a large number of connections in ESTABLISHED state the inbound packets are all handled by a small number of goroutines and significantly reduces the amount of work the goscheduler has to perform. We let connections in other states follow the current path where the endpoint's goroutine directly handles the segments. Updates #231 PiperOrigin-RevId: 289728325
2020-01-14Merge release-20191213.0-115-g50625ce (automated)gVisor bot
2020-01-14Implement {g,s}etsockopt(IP_RECVTOS) for UDP socketsTamir Duberstein
PiperOrigin-RevId: 289718534
2020-01-14Merge release-20191213.0-114-g1ad8381 (automated)gVisor bot
2020-01-13Do Source Address Selection when choosing an IPv6 source addressGhanan Gowripalan
Do Source Address Selection when choosing an IPv6 source address as per RFC 6724 section 5 rules 1-3: 1) Prefer same address 2) Prefer appropriate scope 3) Avoid deprecated addresses. A later change will update Source Address Selection to follow rules 4-8. Tests: Rule 1 & 2: stack.TestIPv6SourceAddressSelectionScopeAndSameAddress, Rule 3: stack.TestAutoGenAddrTimerDeprecation, stack.TestAutoGenAddrDeprecateFromPI PiperOrigin-RevId: 289559373
2020-01-13Protocol filtering works.Kevin Krakauer
2020-01-13Merge branch 'iptables-write-input-drop' into iptables-write-filter-protoKevin Krakauer
2020-01-13Merge release-20191213.0-113-gdebd213 (automated)gVisor bot
2020-01-13Fix test building.Kevin Krakauer
2020-01-13Allow dual stack sockets to operate on AF_INETTamir Duberstein
Fixes #1490 Fixes #1495 PiperOrigin-RevId: 289523250
2020-01-13Merge branch 'master' into iptables-write-input-dropKevin Krakauer
2020-01-13Merge release-20191213.0-111-gb30cfb1 (automated)gVisor bot
2020-01-13Merge pull request #1528 from kevinGC:iptables-writegVisor bot
PiperOrigin-RevId: 289479774
2020-01-10I think INPUT works with protocolKevin Krakauer
2020-01-10Automated rollback of changelist 288990597Ghanan Gowripalan
PiperOrigin-RevId: 289169518
2020-01-10Put CancellableTimer tests in the tcpip_test packageGhanan Gowripalan
CancellableTimer tests were in a timer_test package but lived within the tcpip directory. This caused issues with go tools. PiperOrigin-RevId: 289166345
2020-01-10Cleaned up logs.Kevin Krakauer
2020-01-10Merge release-20191213.0-97-gdacd349 (automated)gVisor bot
2020-01-10panic fix in retransmitTimerExpired.Bhasker Hariharan
This is a band-aid fix for now to prevent panics. PiperOrigin-RevId: 289078453
2020-01-10Merge release-20191213.0-96-g27500d5 (automated)gVisor bot
2020-01-09New sync package.Ian Gudger
* Rename syncutil to sync. * Add aliases to sync types. * Replace existing usage of standard library sync package. This will make it easier to swap out synchronization primitives. For example, this will allow us to use primitives from github.com/sasha-s/go-deadlock to check for lock ordering violations. Updates #1472 PiperOrigin-RevId: 289033387
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