p9.Twalk.handle() with a non-empty path also stats the walked-to path
anyway, so the preceding GetAttr is completely wasted.
PiperOrigin-RevId: 238440645
Change-Id: I7fbc7536f46b8157639d0d1f491e6aaa9ab688a3
Previous memory allocation was excessive (80 MB). Changed
it to use 2 MB instead. There is no drop in perfomance due
to this change:
ab -n 100 -c 10 http://server/latin10m.txt ==> 10 MB file
80 MB: 178 MB/s
2 MB: 181 MB/s
PiperOrigin-RevId: 238321594
Change-Id: I1c8aed13cad5d75f4506d2b406b305117055fbe5
Signed-off-by: Bin Lu <bin.lu@arm.com>
mpratt@google.com: matched against just x86_64, since that's all we care about.
Change-Id: I1320ef31cef6517bf6121a933cc105f2ac548ec8
PiperOrigin-RevId: 238294240
gonet.PacketConn now implements net.Conn, allowing it to be returned from
net.Dial.Dialer functions.
PiperOrigin-RevId: 238111980
Change-Id: I174884385ff4d9b8e9918fac7bbb5b93ca366ba7
HandleLocal is very similar conceptually to MULTICAST_LOOP, so we can unify
the implementations. This has the benefit of making HandleLocal apply even when
the fdbased link endpoint isn't in use.
In addition, move looping logic to route creation so that it doesn't need to be
run for each packet. This should improve performance.
PiperOrigin-RevId: 238099480
Change-Id: I72839f16f25310471453bc9d3fb8544815b25c23
- Redefine some memmap.Mappable, platform.File, and platform.Memory
semantics in terms of File reference counts (no functional change).
- Make AddressSpace.MapFile take a platform.File instead of a raw FD,
and replace platform.File.MapInto with platform.File.FD. This allows
kvm.AddressSpace.MapFile to always use platform.File.MapInternal instead
of maintaining its own (redundant) cache of file mappings in the sentry
address space.
PiperOrigin-RevId: 238044504
Change-Id: Ib73a11e4275c0da0126d0194aa6c6017a9cef64f
getsockopt(IP_MULTICAST_IF) only supports struct in_addr.
Also adds support for setsockopt(IP_MULTICAST_IF) with struct in_addr.
PiperOrigin-RevId: 237620230
Change-Id: I75e7b5b3e08972164eb1906f43ddd67aedffc27c
IP_MULTICAST_LOOP controls whether or not multicast packets sent on the default
route are looped back. In order to implement this switch, support for sending
and looping back multicast packets on the default route had to be implemented.
For now we only support IPv4 multicast.
PiperOrigin-RevId: 237534603
Change-Id: I490ac7ff8e8ebef417c7eb049a919c29d156ac1c
* open_create_test_runsc_ptrace_shared doesn't expect the write access to /
* exec_test_runsc_ptrace_shared could not find /usr/share/zoneinfo/
* clock_gettime_test_runsc_ptrace_shared didn't expect that
a thread cpu time can be zero.
* affinity_test_runsc_ptrace_shared expected minimum 3 cpus
PiperOrigin-RevId: 237509429
Change-Id: I477937e5d2cdf3f8720836bfa972abd35d8220a3
Now that tests aren't running in parallel, this test occassionally
takes too long and times out.
PiperOrigin-RevId: 237106971
Change-Id: I195a4b77315c9f5511c9e8ffadddb7aaa78beafd
ScopedSigaction is not async-signal-safe, so it cannot be used after fork.
Replace it with plain sigaction, which is safe. This is in a unique child
anyways, so it doesn't need any cleanup.
PiperOrigin-RevId: 237102411
Change-Id: I5c6ea373bbac67b9c4db204ceb1db62d338d9178
It is Implemented without the priority inheritance part given
that gVisor defers scheduling decisions to Go runtime and doesn't
have control over it.
PiperOrigin-RevId: 236989545
Change-Id: I714c8ca0798743ecf3167b14ffeb5cd834302560
This help troubleshoot cases where the container is killed and the
app logs don't show the reason.
PiperOrigin-RevId: 236982883
Change-Id: I361892856a146cea5b04abaa3aedbf805e123724
Tests using DisableSave because a portion of the test is *incompatible*
with S/R clearly cannot use random S/R, as the saves may occur in the
DisableSave critical section.
Most such tests already have NoRandomSave. Add it to the rest.
PiperOrigin-RevId: 236914708
Change-Id: Iee1cf044cfa7cb8d5aba21ddc130926218210c48
Clean up some error handling, and add TODO explaining incorrect
behaviour with respect to broadcast on interfaces lacking an IP
address.
PiperOrigin-RevId: 236756233
Change-Id: I9662e7dc062c90565a32a3e153c4dbc98c55b522
When run in parallel, multicast packets can be received by the wrong test. The
tests in the target are run in an isolated network namespace, but if
parallelism is enabled, multiple tests from the same target will run in
parallel within the target's network namespace. Disabling parallelism only
allows one test to run in the network namespace at a time, which prevents
interaction.
PiperOrigin-RevId: 236709160
Change-Id: If828db44f0ae4002af36de6097866137c8d9da5c
Now that we have SO_BROADCAST, we don't need (some of) the hackery in the DHCP
client. This also fixes a bizarre regression observed in Fuchsia where DHCP
acquisition was taking over two minutes.
PiperOrigin-RevId: 236661954
Change-Id: Ibcfe5d311fa5df8ff4ff2e40ccedffe91f92daa5
The globalPool uses a sync.Once mechanism for initialization,
and no cleanup is strictly required. It's not really feasible
to have the platform implement a full creation -> destruction
cycle (due to the way filters are assumed to be installed), so
drop the FIXME.
PiperOrigin-RevId: 236385278
Change-Id: I98ac660ed58cc688d8a07147d16074a3e8181314
Current procfs has some bugs. After executing ls twice, many dirs come
out with same name like "1" or ".". Files like "cpuinfo" disappear.
Here variable names is a slice with cap() > len(). Sort after appending
to it will not alloc a new space and impact orignal slice. Same to m.
Signed-off-by: Ruidong Cao <crdfrank@gmail.com>
Change-Id: I83e5cd1c7968c6fe28c35ea4fee497488d4f9eef
PiperOrigin-RevId: 236222270
...in accordance with RFCs 1112 and 2464.
Fixes IPv4 multicast when IP_MULTICAST_IF is specified.
Don't return ErrNoRoute when no route is needed.
Don't set Route.NextHop when no route is needed.
PiperOrigin-RevId: 236199813
Change-Id: I48ed33e1b7f760deaa37e18ad7f1b8b62819ab43
The specific issue was:
- Test creates a raw ICMP socket
- Test sends an ICMP echo request (aka ping request) to itself via loopback
- Now two events race:
- The raw socket recieves the ICMP echo request
- Netstack receives the request and generates a reply (aka ping reply),
which it sends back over loopback, where it is eventually received by the
raw socket
- The test was written to expect packets in a specific order, but they can
come in any order.
PiperOrigin-RevId: 236179066
Change-Id: I02c07c919d3d28093add3d18dd9196fbbc870813
Broadly, this change:
* Enables sockets to be created via `socket(AF_INET, SOCK_RAW, IPPROTO_ICMP)`.
* Passes the network-layer (IP) header up the stack to the transport endpoint,
which can pass it up to the socket layer. This allows a raw socket to return
the entire IP packet to users.
* Adds functions to stack.TransportProtocol, stack.Stack, stack.transportDemuxer
that enable incoming packets to be delivered to raw endpoints. New raw sockets
of other protocols (not ICMP) just need to register with the stack.
* Enables ping.endpoint to return IP headers when created via SOCK_RAW.
PiperOrigin-RevId: 235993280
Change-Id: I60ed994f5ff18b2cbd79f063a7fdf15d093d845a
There was a minor bug whth IsPosixErrorOkAndHoldsMatcher where
it wouldn't display the actual value contained. This fixes that
and adds a few other minor improvements.
PiperOrigin-RevId: 235809065
Change-Id: I487e5072e9569eb06104522963e9a1b34204daaf
Also exposes ipv4.MaxTotalSize since it is a generally useful constant.
PiperOrigin-RevId: 235799755
Change-Id: I1fa8d5294bf355acf5527cfdf274b3687d3c8b13
Jamie Liu
Nicolas Lacasse
Kevin Krakauer
Fabricio Voznika
Bin Lu
Noah Gold
Ian Gudger
Adin Scannell
Andrei Vagin
Michael Pratt
Bhasker Hariharan
Tamir Duberstein
Ruidong Cao
Brian Geffon
Googler