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Added the ability to get/set the IP_RECVTOS socket option on UDP endpoints. If
enabled, TOS from the incoming Network Header passed as ancillary data in the
ControlMessages.
Test:
* Added unit test to udp_test.go that tests getting/setting as well as
verifying that we receive expected TOS from incoming packet.
* Added a syscall test
PiperOrigin-RevId: 287029703
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It was calling Dentry.InsertChild with the dentry's mutex
already locked.
Updates #1035
PiperOrigin-RevId: 286962742
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- Make FilesystemImpl methods that operate on parent directories require
!rp.Done() (i.e. there is at least one path component to resolve) as
precondition and postcondition (in cases where they do not finish path
resolution due to mount boundary / absolute symlink), and require that they
do not need to follow the last path component (the file being created /
deleted) as a symlink. Check for these in VFS.
- Add FilesystemImpl.GetParentDentryAt(), which is required to obtain the old
parent directory for VFS.RenameAt(). (Passing the Dentry to be renamed
instead has the wrong semantics if the file named by the old path is a mount
point since the Dentry will be on the wrong Mount.)
- Update memfs to implement these methods correctly (?), including RenameAt.
- Change fspath.Parse() to allow empty paths (to simplify implementation of
AT_EMPTY_PATH).
- Change vfs.PathOperation to take a fspath.Path instead of a raw pathname;
non-test callers will need to fspath.Parse() pathnames themselves anyway in
order to detect absolute paths and select PathOperation.Start accordingly.
PiperOrigin-RevId: 286934941
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bm-tools requires python3 and pip3 in order to run
tests. Add pip3 so that dependencies correctly install
for Kokoro runs with bazel.
PiperOrigin-RevId: 286923840
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This change supports clearing all host-only NDP state when NICs become routers.
All discovered routers, discovered on-link prefixes and auto-generated addresses
will be invalidated when becoming a router. This is because normally, routers do
not process Router Advertisements to discover routers or on-link prefixes, and
do not do SLAAC.
Tests: Unittest to make sure that all discovered routers, discovered prefixes
and auto-generated addresses get invalidated when transitioning from a host to
a router.
PiperOrigin-RevId: 286902309
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PiperOrigin-RevId: 286667216
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PiperOrigin-RevId: 286666533
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PiperOrigin-RevId: 286660774
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PiperOrigin-RevId: 286639163
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PiperOrigin-RevId: 286616668
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Otherwise, CopyInFDSet will try to allocate a negative-length slice.
PiperOrigin-RevId: 286584907
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This change is needed to be compatible with the Linux kernel.
There is no glibc wrapper for the futex system call, so it is easy to
make a mistake and call syscall(__NR_futex, FUTEX_WAKE, addr) without
the fourth argument. This works on Linux, because it wakes one waiter
even if val is nonpositive.
PiperOrigin-RevId: 286494396
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This test suite has existed for quite a while and has become kind of messy.
Various tests can be joined together by parameterizing.
PiperOrigin-RevId: 286482240
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Without it, we get a build failure (inside the container) when trying to build
//runsc.
PiperOrigin-RevId: 286474518
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Otherwise a copy happens, which triggers a data race when reading
masterInodeOperations.SimpleFileOperations.uattr, which must be accessed with a
lock held.
PiperOrigin-RevId: 286464473
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When listen(2) is called on an unbound socket, the socket is
automatically bound to a random free port with the local address
set to INADDR_ANY.
PiperOrigin-RevId: 286305906
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PiperOrigin-RevId: 286299056
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It can take more than 10 seconds when running under --race.
PiperOrigin-RevId: 286296060
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PiperOrigin-RevId: 286281274
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This change removes the requirement that a new routing table be provided when a
router or prefix discovery event happens so that an updated routing table may
be provided to the stack at a later time from the event.
This change is to address the use case where the netstack integrator may need to
obtain a lock before providing updated routes in response to the events above.
As an example, say we have an integrator that performs the below two operations
operations as described:
A. Normal route update:
1. Obtain integrator lock
2. Update routes in the integrator
3. Call Stack.SetRouteTable with the updated routes
3.1. Obtain Stack lock
3.2. Update routes in Stack
3.3. Release Stack lock
4. Release integrator lock
B. NDP event triggered route update:
1. Obtain Stack lock
2. Call event handler
2.1. Obtain integrator lock
2.2. Update routes in the integrator
2.3. Release integrator lock
2.4. Return updated routes to update Stack
3. Update routes in Stack
4. Release Stack lock
A deadlock may occur if a Normal route update was attemped at the same time an
NDP event triggered route update was attempted. With threads T1 and T2:
1) T1 -> A.1, A.2
2) T2 -> B.1
3) T1 -> A.3 (hangs at A.3.1 since Stack lock is taken in step 2)
4) T2 -> B.2 (hangs at B.2.1 since integrator lock is taken in step 1)
Test: Existing tests were modified to not provide or expect routing table
changes in response to Router and Prefix discovery events.
PiperOrigin-RevId: 286274712
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PiperOrigin-RevId: 286259750
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This change makes sure that test variables are captured before running tests
in parallel, and removes unneeded buffered channel allocations. This change also
removes unnecessary timeouts.
PiperOrigin-RevId: 286255066
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PiperOrigin-RevId: 286249699
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PiperOrigin-RevId: 286248378
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This avoids conflicting definitions of GetSocketPairs() in outer namespace when
multiple such cc files are complied for one binary.
PiperOrigin-RevId: 286243045
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