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PiperOrigin-RevId: 328415633
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PiperOrigin-RevId: 328410399
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PiperOrigin-RevId: 328410065
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The actual values used for this field in Netstack are actually EtherType values
of the protocol in an Ethernet frame. Eg. header.IPv4ProtocolNumber is 0x0800
and not the number of the IPv4 Protocol Number itself which is 4. Similarly
header.IPv6ProtocolNumber is set to 0x86DD whereas the IPv6 protocol number is
41.
See:
- https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml (For EtherType)
- https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml (For ProtocolNumbers)
PiperOrigin-RevId: 328407293
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PiperOrigin-RevId: 328403914
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iptables sockopts were kludged into an unnecessary check, this properly
relegates them to the {get,set}SockOptIP functions.
PiperOrigin-RevId: 328395135
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The debian rules are also moved to the top-level, since they
apply to binaries outside the //runsc directory.
Fixes #3665
PiperOrigin-RevId: 328379709
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Updates #3374
PiperOrigin-RevId: 328378700
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PiperOrigin-RevId: 328374775
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This change adds an option to replace the current implementation of ARP through
linkAddrCache, with an implementation of NUD through neighborCache. Switching
to using NUD for both ARP and NDP is beneficial for the reasons described by
RFC 4861 Section 3.1:
"[Using NUD] significantly improves the robustness of packet delivery in the
presence of failing routers, partially failing or partitioned links, or nodes
that change their link-layer addresses. For instance, mobile nodes can move
off-link without losing any connectivity due to stale ARP caches."
"Unlike ARP, Neighbor Unreachability Detection detects half-link failures and
avoids sending traffic to neighbors with which two-way connectivity is
absent."
Along with these changes exposes the API for querying and operating the
neighbor cache. Operations include:
- Create a static entry
- List all entries
- Delete all entries
- Remove an entry by address
This also exposes the API to change the NUD protocol constants on a per-NIC
basis to allow Neighbor Discovery to operate over links with widely varying
performance characteristics. See [RFC 4861 Section 10][1] for the list of
constants.
Finally, an API for subscribing to NUD state changes is exposed through
NUDDispatcher. See [RFC 4861 Appendix C][3] for the list of edges.
Tests:
pkg/tcpip/network/arp:arp_test
+ TestDirectRequest
pkg/tcpip/network/ipv6:ipv6_test
+ TestLinkResolution
+ TestNDPValidation
+ TestNeighorAdvertisementWithTargetLinkLayerOption
+ TestNeighorSolicitationResponse
+ TestNeighorSolicitationWithSourceLinkLayerOption
+ TestRouterAdvertValidation
pkg/tcpip/stack:stack_test
+ TestCacheWaker
+ TestForwardingWithFakeResolver
+ TestForwardingWithFakeResolverManyPackets
+ TestForwardingWithFakeResolverManyResolutions
+ TestForwardingWithFakeResolverPartialTimeout
+ TestForwardingWithFakeResolverTwoPackets
+ TestIPv6SourceAddressSelectionScopeAndSameAddress
[1]: https://tools.ietf.org/html/rfc4861#section-10
[2]: https://tools.ietf.org/html/rfc4861#appendix-C
Fixes #1889
Fixes #1894
Fixes #1895
Fixes #1947
Fixes #1948
Fixes #1949
Fixes #1950
PiperOrigin-RevId: 328365034
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When SO_LINGER option is enabled, the close will not return until all the
queued messages are sent and acknowledged for the socket or linger timeout is
reached. If the option is not set, close will return immediately. This option
is mainly supported for connection oriented protocols such as TCP.
PiperOrigin-RevId: 328350576
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These tests print disk_free_space()/disk_total_space() and expect the printed
result to be an integer (despite the fact that both the documented and returned
type is float). After cl/297213789, free/total disk space on tmpfs is
sufficiently large that PHP prints the result in scientific notation instead:
========DIFF========
012+ float(9.2233720368548E+18)
013+ float(9.2233720368548E+18)
012- float(%d)
013- float(%d)
========DONE========
FAIL disk_total_space() and disk_free_space() tests [ext/standard/tests/file/disk.phpt]
PiperOrigin-RevId: 328349906
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Due to how marshallable interface implementation was generated, we could not
marshal a struct whose named started with W because there was a naming
collision with parameter (w io.Writer) and type (w *StuctName).
Used "writer" as parameter name to avoid collision.
PiperOrigin-RevId: 328343930
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We still deviate a bit from linux in how long we will actually wait in
FIN-WAIT-2. Linux seems to cap it with TIME_WAIT_LEN and it's not completely
obvious as to why it's done that way. For now I think we can ignore that and
fix it if it really is an issue.
PiperOrigin-RevId: 328324922
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Fixes several java runtime tests:
java/nio/channels/FileChannel/directio/ReadDirect.java
java/nio/channels/FileChannel/directio/PreadDirect.java
Updates #3576.
PiperOrigin-RevId: 328281849
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PiperOrigin-RevId: 328259353
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This is closer to indistinguishable from VFS1 behavior.
PiperOrigin-RevId: 328256068
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If the data is in the same Reader as the merkle tree, we should verify
from the first layer in the tree, instead of from the beginning.
PiperOrigin-RevId: 328230988
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Go profiling was removed from runsc debug in a previous change.
PiperOrigin-RevId: 328203826
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This enables pre-release testing with 1.16. The intention is to replace these
with a nogo check before the next release.
PiperOrigin-RevId: 328193911
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When a loopback interface is configurd with an address and associated
subnet, the loopback should treat all addresses in that subnet as an
address it owns.
This is mimicking linux behaviour as seen below:
```
$ ip addr show dev lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group ...
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
$ ping 192.0.2.1
PING 192.0.2.1 (192.0.2.1) 56(84) bytes of data.
^C
--- 192.0.2.1 ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1018ms
$ ping 192.0.2.2
PING 192.0.2.2 (192.0.2.2) 56(84) bytes of data.
^C
--- 192.0.2.2 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2039ms
$ sudo ip addr add 192.0.2.1/24 dev lo
$ ip addr show dev lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group ...
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet 192.0.2.1/24 scope global lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
$ ping 192.0.2.1
PING 192.0.2.1 (192.0.2.1) 56(84) bytes of data.
64 bytes from 192.0.2.1: icmp_seq=1 ttl=64 time=0.131 ms
64 bytes from 192.0.2.1: icmp_seq=2 ttl=64 time=0.046 ms
64 bytes from 192.0.2.1: icmp_seq=3 ttl=64 time=0.048 ms
^C
--- 192.0.2.1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2042ms
rtt min/avg/max/mdev = 0.046/0.075/0.131/0.039 ms
$ ping 192.0.2.2
PING 192.0.2.2 (192.0.2.2) 56(84) bytes of data.
64 bytes from 192.0.2.2: icmp_seq=1 ttl=64 time=0.131 ms
64 bytes from 192.0.2.2: icmp_seq=2 ttl=64 time=0.069 ms
64 bytes from 192.0.2.2: icmp_seq=3 ttl=64 time=0.049 ms
64 bytes from 192.0.2.2: icmp_seq=4 ttl=64 time=0.035 ms
^C
--- 192.0.2.2 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3049ms
rtt min/avg/max/mdev = 0.035/0.071/0.131/0.036 ms
```
Test: integration_test.TestLoopbackAcceptAllInSubnet
PiperOrigin-RevId: 328188546
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We now allow hard links to be created within gofer fs (see
github.com/google/gvisor/commit/f20e63e31b56784c596897e86f03441f9d05f567).
Update the inotify documentation accordingly.
PiperOrigin-RevId: 328177485
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PiperOrigin-RevId: 328157101
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verity GetFilesystem is implemented by mounting the underlying file
system, save the mount, and store both the underlying root dentry and
root Merkle file dentry in verity's root dentry.
PiperOrigin-RevId: 327959334
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Add tests for socket re-bind/listen of client and server sockets
with the older connection still in TIME_WAIT state and with
SO_REUSEADDR enabled.
PiperOrigin-RevId: 327924702
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