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2018-12-14Move fdnotifier package to reduce internal confusion.Adin Scannell
PiperOrigin-RevId: 225632398 Change-Id: I909e7e2925aa369adc28e844c284d9a6108e85ce
2018-12-14Mark sync.Mutex in TTYFileOperations as nosaveAndrei Vagin
PiperOrigin-RevId: 225621767 Change-Id: Ie3a42cdf0b0de22a020ff43e307bf86409cff329
2018-12-14Implement SO_SNDTIMEOIan Gudger
PiperOrigin-RevId: 225620490 Change-Id: Ia726107b3f58093a5f881634f90b071b32d2c269
2018-12-13Fix WAITALL and RCVTIMEO interactionIan Gudger
PiperOrigin-RevId: 225424296 Change-Id: I60fcc2b859339dca9963cb32227a287e719ab765
2018-12-13transport/tcp: remove unused error return valuesIan Gudger
PiperOrigin-RevId: 225421480 Change-Id: I1e9259b0b7e8490164e830b73338a615129c7f0e
2018-12-12Filesystems shouldn't be saving references to Platform.Rahat Mahmood
Platform objects are not savable, storing references to them in filesystem datastructures would cause save to fail if someone actually passed in a Platform. Current implementations work because everywhere a Platform is expected, we currently pass in a Kernel object which embeds Platform and thus satisfies the interface. Eliminate this indirection and save pointers to Kernel directly. PiperOrigin-RevId: 225288336 Change-Id: Ica399ff43f425e15bc150a0d7102196c3d54a2ab
2018-12-12Fix a data race on Shm.key.Rahat Mahmood
PiperOrigin-RevId: 225240907 Change-Id: Ie568ce3cd643f3e4a0eaa0444f4ed589dcf6031f
2018-12-12Pass information about map writableness to filesystems.Rahat Mahmood
This is necessary to implement file seals for memfds. PiperOrigin-RevId: 225239394 Change-Id: Ib3f1ab31385afc4b24e96cd81a05ef1bebbcbb70
2018-12-11Format unshare flagsMichael Pratt
unshare actually takes a subset of clone flags, but has no unique flags, so formatting as clone flags is close enough. PiperOrigin-RevId: 225082774 Change-Id: I5b580f18607c7785f323e37809094115520a17c0
2018-12-11Remove unused envv variable from two funcs.Christopher Koch
PiperOrigin-RevId: 225041520 Change-Id: Ib1afc693e592d308d60db82022c5b7743fd3c646
2018-12-10Add safecopy support for arm64 platform.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I565214581eeb44045169da7f44d45a489082ac3a PiperOrigin-RevId: 224938170
2018-12-10Implement MSG_WAITALLIan Gudger
MSG_WAITALL requests that recv family calls do not perform short reads. It only has an effect for SOCK_STREAM sockets, other types ignore it. PiperOrigin-RevId: 224918540 Change-Id: Id97fbf972f1f7cbd4e08eec0138f8cbdf1c94fe7
2018-12-10Add type safety to shm ids and keys.Rahat Mahmood
PiperOrigin-RevId: 224864380 Change-Id: I49542279ad56bf15ba462d3de1ef2b157b31830a
2018-12-10Validate FS_BASE in Task.CloneMichael Pratt
arch_prctl already verified that the new FS_BASE was canonical, but Task.Clone did not. Centralize these checks in the arch packages. Failure to validate could cause an error in PTRACE_SET_REGS when we try to switch to the app. PiperOrigin-RevId: 224862398 Change-Id: Iefe63b3f9aa6c4810326b8936e501be3ec407f14
2018-12-09Stub out TCP_QUICKACKIan Gudger
PiperOrigin-RevId: 224696233 Change-Id: I45c425d9e32adee5dcce29ca7439a06567b26014
2018-12-07sentry: turn "dynamically-created" procfs files into static creation.Zhaozhong Ni
PiperOrigin-RevId: 224600982 Change-Id: I547253528e24fb0bb318fc9d2632cb80504acb34
2018-12-07Format sigaction in straceMichael Pratt
Sample: I1206 14:24:56.768520 3700 x:0] [ 1] ioctl_test E rt_sigaction(SIGSEGV, 0x7ee6edb0c590 {Handler: 0x559c6d915cf0, Flags: SA_SIGINFO|SA_RESTORER|SA_ONSTACK|SA_NODEFER, Restorer: 0x2a9901a259a0, Mask: []}, 0x7ee6edb0c630) I1206 14:24:56.768530 3700 x:0] [ 1] ioctl_test X rt_sigaction(SIGSEGV, 0x7ee6edb0c590 {Handler: 0x559c6d915cf0, Flags: SA_SIGINFO|SA_RESTORER|SA_ONSTACK|SA_NODEFER, Restorer: 0x2a9901a259a0, Mask: []}, 0x7ee6edb0c630 {Handler: SIG_DFL, Flags: 0x0, Restorer: 0x0, Mask: []}) = 0x0 (2.701?s) PiperOrigin-RevId: 224596606 Change-Id: I3512493aed99d3d75600249263da46686b1dc0e7
2018-12-07Add period to commentMichael Pratt
PiperOrigin-RevId: 224553291 Change-Id: I35d0772c215b71f4319c23f22df5c61c908f8590
2018-12-06Format signals, signal masks in straceMichael Pratt
Sample: I1205 16:51:49.869701 2492 x:0] [ 1] ioctl_test E rt_sigaction(SIGIO, 0x7e0e5b5e8500, 0x7e0e5b5e85a0) I1205 16:51:49.869766 2492 x:0] [ 1] ioctl_test X rt_sigaction(SIGIO, 0x7e0e5b5e8500, 0x7e0e5b5e85a0) = 0x0 (44.336?s) I1205 16:51:49.869831 2492 x:0] [ 1] ioctl_test E rt_sigprocmask(SIG_UNBLOCK, 0x7e0e5b5e8878 [SIGIO], 0x7e0e5b5e87c0, 0x8) I1205 16:51:49.869866 2492 x:0] [ 1] ioctl_test X rt_sigprocmask(SIG_UNBLOCK, 0x7e0e5b5e8878 [SIGIO], 0x7e0e5b5e87c0 [SIGIO 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64], 0x8) = 0x0 (2.575?s) PiperOrigin-RevId: 224422404 Change-Id: I3ed3f2ec6b1a639baa9cacd37ce7ee325c3703e4
2018-12-06Allow sending of broadcast packets w/o route.Chris Kuiper
Currently sending a broadcast packet (for DHCP, e.g.) requires a "default route" of the format "0.0.0.0/0 via 0.0.0.0 <intf>". There is no good reason for this and on devices with several ports this creates a rather akward route table with lots of such default routes (which defeats the purpose of a default route). PiperOrigin-RevId: 224378769 Change-Id: Icd7ec8a206eb08083cff9a837f6f9ab231c73a19
2018-12-06Convert ValueSet to a mapMichael Pratt
Unlike FlagSet, order doesn't matter here, so it can simply be a map. PiperOrigin-RevId: 224377910 Change-Id: I15810c698a7f02d8614bf09b59583ab73cba0514
2018-12-06Fix tcpip.Endpoint.Write contract regarding short writesIan Gudger
* Clarify tcpip.Endpoint.Write contract regarding short writes. * Enforce tcpip.Endpoint.Write contract regarding short writes. * Update relevant users of tcpip.Endpoint.Write. PiperOrigin-RevId: 224377586 Change-Id: I24299ecce902eb11317ee13dae3b8d8a7c5b097d
2018-12-06Add counters for memory events.Rahat Mahmood
Also ensure an event is emitted at startup. PiperOrigin-RevId: 224372065 Change-Id: I5f642b6d6b13c6468ee8f794effe285fcbbf29cf
2018-12-06Fixing O_TRUNC behavior to match Linux.Zach Koopmans
PiperOrigin-RevId: 224351139 Change-Id: I9453bd75e5a8d38db406bb47fdc01038ac60922e
2018-12-05sentry: support save / restore of TCP bind socket after shutdown.Zhaozhong Ni
PiperOrigin-RevId: 224227677 Change-Id: I08b0e0c0574170556269900653e5bcf9e9e5c9c9
2018-12-05Enforce directory accessibility before delete WalkMichael Pratt
By Walking before checking that the directory is writable and executable, MayDelete may return the Walk error (e.g., ENOENT) which would normally be masked by a permission error (EACCES). PiperOrigin-RevId: 224222453 Change-Id: I108a7f730e6bdaa7f277eaddb776267c00805475
2018-12-05Update MM.usageAS when mremap copies or moves a mapping.Jamie Liu
PiperOrigin-RevId: 224221509 Change-Id: I7aaea74629227d682786d3e435737364921249bf
2018-12-05sentry: skip waiting for undrain for netstack TCP endpoints in error state.Zhaozhong Ni
PiperOrigin-RevId: 224214981 Change-Id: I4c1dd5b1c856f7a4f9866a5dda44a5297e92486a
2018-12-05Add context to mount errorsMichael Pratt
This makes it more obvious why a mount failed. PiperOrigin-RevId: 224203880 Change-Id: I7961774a7b6fdbb5493a791f8b3815c49b8f7631
2018-12-05Check for CAP_SYS_RESOURCE in prctl(PR_SET_MM, ...)Zach Koopmans
If sys_prctl is called with PR_SET_MM without CAP_SYS_RESOURCE, the syscall should return failure with errno set to EPERM. See: http://man7.org/linux/man-pages/man2/prctl.2.html PiperOrigin-RevId: 224182874 Change-Id: I630d1dd44af8b444dd16e8e58a0764a0cf1ad9a3
2018-12-04Remove incorrect code and improve testing of Stack.GetMainNICAddressChris Kuiper
This removes code that should have never made it in in the first place, but did so due to incomplete testing. With the new tests the original code fails, the new code passes. PiperOrigin-RevId: 224086966 Change-Id: I646fef76977f4528f3705f497b95fad6b3ec32bc
2018-12-04Remove initRegs arg from cloneMichael Pratt
It is always the same as t.initRegs. PiperOrigin-RevId: 224085550 Change-Id: I5cc4ddc3b481d4748c3c43f6f4bb50da1dbac694
2018-12-04Partial writes should loop in rpcinet.Brian Geffon
FileOperations.Write should return ErrWouldBlock to allow the upper layer to loop and sendmsg should continue writing where it left off on a partial write. PiperOrigin-RevId: 224081631 Change-Id: Ic61f6943ea6b7abbd82e4279decea215347eac48
2018-12-04Whitelist Go 1.12 for tcpip/time_unsafe.goIan Gudger
The signature of time.now has remained unchanged: https://github.com/golang/go/blob/c2412a7681d5beaeb5a4ceef3b2b7886361282ce/src/time/time.go#L1072 PiperOrigin-RevId: 224061160 Change-Id: Ic84bd6ee8fb9952cd9ab580bcb0892444ce7c2da
2018-12-04Linkat(2) should sanity check flags.Brian Geffon
PiperOrigin-RevId: 224047765 Change-Id: I6f3c75b33c32bf8f8910ea3fab35406d7d672d87
2018-12-04Max link traversals should be for an entire path.Brian Geffon
The number of symbolic links that are allowed to be followed are for a full path and not just a chain of symbolic links. PiperOrigin-RevId: 224047321 Change-Id: I5e3c4caf66a93c17eeddcc7f046d1e8bb9434a40
2018-12-04sentry: save / restore netstack procfs configuration.Zhaozhong Ni
PiperOrigin-RevId: 224047120 Change-Id: Ia6cb17fa978595cd73857b6178c4bdba401e185e
2018-12-04Enforce name length restriction on paths.Brian Geffon
NAME_LENGTH must be enforced per component. PiperOrigin-RevId: 224046749 Change-Id: Iba8105b00d951f2509dc768af58e4110dafbe1c9
2018-12-04Fix mempolicy_test on bazel.Rahat Mahmood
Bazel runs multiple test cases on the same thread. Some of the test cases rely on the test thread starting with the default memory policy, while other tests modify the test thread's memory policy. This obviously breaks when the test framework doesn't run each test case on a new thread. Also fixing an incompatibility where set_mempolicy(2) was prevented from specifying an empty nodemask, which is allowed for some modes. PiperOrigin-RevId: 224038957 Change-Id: Ibf780766f2706ebc9b129dbc8cf1b85c2a275074
2018-12-04Fix available calculation when merging TCP segmentsIan Gudger
PiperOrigin-RevId: 224033418 Change-Id: I780be973e8be68ac93e8c9e7a100002e912f40d2
2018-12-04sentry: save copy of tcp segment's delivered views to avoid in-struct pointers.Zhaozhong Ni
PiperOrigin-RevId: 224033238 Change-Id: Ie5b1854b29340843b02c123766d290a8738d7631
2018-12-04Fix data race caused by unlocked call of Dirent.descendantOf.Nicolas Lacasse
PiperOrigin-RevId: 224025363 Change-Id: I98864403c779832e9e1436f7d3c3f6fb2fba9904
2018-12-04Add ARM64 support to pkg/abi/linuxBin Lu
Signed-off-by: Bin Lu <bin.lu@arm.com> Change-Id: I73cc4c406fadccb054e8e83c9464f6bef6280b0f PiperOrigin-RevId: 224025309
2018-12-03Return an int32 for netlink SO_RCVBUFIan Gudger
Untyped integer constants default to type int and the binary package will panic if one tries to encode an int. PiperOrigin-RevId: 223890001 Change-Id: Iccc3afd6d74bad24c35d764508e450fd317b76ec
2018-11-29Test that full segments will be sent when delay/cork is enabledIan Gudger
PiperOrigin-RevId: 223425575 Change-Id: Idd777e04c69e6ffcbfb0bdbea828a8b8b42d7672
2018-11-27Fix data race in fs.Async.Nicolas Lacasse
Replaces the WaitGroup with a RWMutex. Calls to Async hold the mutex for reading, while AsyncBarrier takes the lock for writing. This ensures that all executing Async work finishes before AsyncBarrier returns. Also pushes the Async() call from Inode.Release into gofer/InodeOperations.Release(). This removes a recursive Async call which should not have been allowed in the first place. The gofer Release call is the slow one (since it may make RPCs to the gofer), so putting the Async call there makes sense. PiperOrigin-RevId: 223093067 Change-Id: I116da7b20fce5ebab8d99c2ab0f27db7c89d890e
2018-11-27Save shutdown flags first.Brian Geffon
With rpcinet if shutdown flags are not saved before making the rpc a race is possible where blocked threads are woken up before the flags have been persisted. This would mean that threads can block indefinitely in a recvmsg after a shutdown(SHUT_RD) has happened. PiperOrigin-RevId: 223089783 Change-Id: If595e7add12aece54bcdf668ab64c570910d061a
2018-11-27Add procid support for arm64 platformHaibo Xu
Change-Id: I7c3db8dfdf95a125d7384c1d67c3300dbb99a47e PiperOrigin-RevId: 223039923
2018-11-26Implementation of preadv2 for Linux 4.4 supportZach Koopmans
Implement RWF_HIPRI (4.6) silently passes the read call. Implement -1 offset calls readv. PiperOrigin-RevId: 222840324 Change-Id: If9ddc1e8d086e1a632bdf5e00bae08205f95b6b0
2018-11-21Make ToView non-allocating for single VectorizedViews containing a single ViewIan Gudger
PiperOrigin-RevId: 222483471 Change-Id: I6720690b20167dd541fdfa5218eba7c9f7483347
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