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2018-08-10Implemented the splice(2) syscall.Justine Olshan
Currently the implementation matches the behavior of moving data between two file descriptors. However, it does not implement this through zero-copy movement. Thus, this code is a starting point to build the more complex implementation. PiperOrigin-RevId: 208284483 Change-Id: Ibde79520a3d50bc26aead7ad4f128d2be31db14e
2018-08-10Validate FS.base before establishing it in the task's register set.Neel Natu
PiperOrigin-RevId: 208229341 Change-Id: I5d84bc52bbafa073446ef497e56958d0d7955aa8
2018-08-09Fix missing O_LARGEFILE from O_CREAT filesMichael Pratt
Cleanup some more syscall.O_* references while we're here. PiperOrigin-RevId: 208133460 Change-Id: I48db71a38f817e4f4673977eafcc0e3874eb9a25
2018-08-02Copy creds in accessMichael Pratt
PiperOrigin-RevId: 207181631 Change-Id: Ic6205278715a9260fb970efb414fc758ea72c4c6
2018-08-02Update comment referenceMichael Pratt
PiperOrigin-RevId: 207180809 Change-Id: I08c264812919e81b2c56fdd4a9ef06924de8b52f
2018-08-02Automated rollback of changelist 207037226Zhaozhong Ni
PiperOrigin-RevId: 207125440 Change-Id: I6c572afb4d693ee72a0c458a988b0e96d191cd49
2018-08-02Add seccomp(2) support.Brian Geffon
Add support for the seccomp syscall and the flag SECCOMP_FILTER_FLAG_TSYNC. PiperOrigin-RevId: 207101507 Change-Id: I5eb8ba9d5ef71b0e683930a6429182726dc23175
2018-08-01Automated rollback of changelist 207007153Michael Pratt
PiperOrigin-RevId: 207037226 Change-Id: I8b5f1a056d4f3eab17846f2e0193bb737ecb5428
2018-08-01stateify: convert all packages to use explicit mode.Zhaozhong Ni
PiperOrigin-RevId: 207007153 Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9
2018-07-31proc: show file flags in fdinfoAndrei Vagin
Currently, there is an attempt to print FD flags, but they are not decoded into a number, so we see something like this: /criu # cat /proc/self/fdinfo/0 flags: {%!o(bool=000false)} Actually, fdinfo has to contain file flags. Change-Id: Idcbb7db908067447eb9ae6f2c3cfb861f2be1a97 PiperOrigin-RevId: 206794498
2018-07-27Added the O_LARGEFILE flag.Justine Olshan
This flag will always be true for gVisor files. PiperOrigin-RevId: 206355963 Change-Id: I2f03d2412e2609042df43b06d1318cba674574d0
2018-07-27stateify: support explicit annotation mode; convert refs and stack packages.Zhaozhong Ni
We have been unnecessarily creating too many savable types implicitly. PiperOrigin-RevId: 206334201 Change-Id: Idc5a3a14bfb7ee125c4f2bb2b1c53164e46f29a8
2018-07-19kernel: mutations on creds now require a copy.Adin Scannell
PiperOrigin-RevId: 205315612 Change-Id: I9a0a1e32c8abfb7467a38743b82449cc92830316
2018-07-12Fix aio eventfd lookupMichael Pratt
We're failing to set eventFile in the outer scope. PiperOrigin-RevId: 204392995 Change-Id: Ib9b04f839599ef552d7b5951d08223e2b1d5f6ad
2018-06-29aio: Return EINVAL if the number of events is negative.Nicolas Lacasse
PiperOrigin-RevId: 202671065 Change-Id: I248b74544d47ddde9cd59d89aa6ccb7dad2b6f89
2018-06-28Check for invalid offset when submitting an AIO read/write request.Nicolas Lacasse
PiperOrigin-RevId: 202528335 Change-Id: Ic32312cf4337bcb40a7155cb2174e5cd89a280f7
2018-06-27Ignore MADV_DONTDUMP and MADV_DODUMP.Jamie Liu
PiperOrigin-RevId: 202361912 Change-Id: I1d0ee529073954d467b870872f494cebbf8ea61a
2018-06-21Implement ioctl(FIOASYNC)Ian Gudger
FIOASYNC and friends are used to send signals when a file is ready for IO. This may or may not be needed by Nginx. While Nginx does use it, it is unclear if the code that uses it has any effect. PiperOrigin-RevId: 201550828 Change-Id: I7ba05a7db4eb2dfffde11e9bd9a35b65b98d7f50
2018-06-15Replace crypto/rand with internal rand packageMichael Pratt
PiperOrigin-RevId: 200784607 Change-Id: I39aa6ee632936dcbb00fc298adccffa606e9f4c0
2018-06-11Add O_TRUNC handling in openatFabricio Voznika
PiperOrigin-RevId: 200103677 Change-Id: I3efb565c30c64d35f8fd7b5c05ed78dcc2990c51
2018-06-08Fix sigaltstack semantics.Adin Scannell
Walking off the bottom of the sigaltstack, for example with recursive faults, results in forced signal delivery, not resetting the stack or pushing signal stack to whatever happens to lie below the signal stack. PiperOrigin-RevId: 199856085 Change-Id: I0004d2523f0df35d18714de2685b3eaa147837e0
2018-05-22Remove offset check to match with Linux implementation.Fabricio Voznika
PiperOrigin-RevId: 197644246 Change-Id: I63eb0a58889e69fbc4af2af8232f6fa1c399d43f
2018-05-22Change length type, and let fadvise64 return ESPIPE if file is a pipeChanwit Kaewkasi
Kernel before 2.6.16 return EINVAL, but later return ESPIPE for this case. Also change type of "length" from Uint(uint32) to Int64. Because C header uses type "size_t" (unsigned long) or "off_t" (long) for length. And it makes more sense to check length < 0 with Int64 because Uint cannot be negative. Change-Id: Ifd7fea2dcded7577a30760558d0d31f479f074c4 PiperOrigin-RevId: 197616743
2018-05-17Cleanup docsMichael Pratt
This brings the proc document more up-to-date. PiperOrigin-RevId: 197070161 Change-Id: Iae2cf9dc44e3e748a33f497bb95bd3c10d0c094a
2018-05-17Implement sysv shm.Rahat Mahmood
PiperOrigin-RevId: 197058289 Change-Id: I3946c25028b7e032be4894d61acb48ac0c24d574
2018-05-16Verify that when offset address is not null, infile must be seekableChanwit Kaewkasi
Change-Id: Id247399baeac58f6cd774acabd5d1da05e5b5697 PiperOrigin-RevId: 196887768
2018-05-15Fix problem with sendfile(2) writing less dataFabricio Voznika
When the amount of data read is more than the amount written, sendfile would not adjust 'in file' position and would resume from the wrong location. Closes #33 PiperOrigin-RevId: 196731287 Change-Id: Ia219895dd765016ed9e571fd5b366963c99afb27
2018-05-11Implement MAP_32BIT.Jamie Liu
PiperOrigin-RevId: 196281052 Change-Id: Ie620a0f983a1bf2570d0003d4754611879335c1c
2018-05-08Fix warning: redundant if ...; err != nil check, just return error instead.Ian Gudger
This warning is produced by golint. PiperOrigin-RevId: 195833381 Change-Id: Idd6a7e57e3cfdf00819f2374b19fc113585dc1e1
2018-05-01Add support for ping socketsIan Gudger
PiperOrigin-RevId: 195049322 Change-Id: I09f6dd58cf10a2e50e53d17d2823d540102913c5
2018-05-01Implement SO_TIMESTAMPIan Gudger
PiperOrigin-RevId: 195047018 Change-Id: I6d99528a00a2125f414e1e51e067205289ec9d3d
2018-05-01Fix SO_RCVTIMEOUT for recvmsgIan Gudger
PiperOrigin-RevId: 194938091 Change-Id: Id17f26df13a915ec0c388aad3198207ea1c28d53
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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