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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
2018-12-04Add ARM64 support to pkg/abi/linuxBin Lu
Signed-off-by: Bin Lu <bin.lu@arm.com> Change-Id: I73cc4c406fadccb054e8e83c9464f6bef6280b0f PiperOrigin-RevId: 224025309
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
2018-11-20Use RET_KILL_PROCESS if available in kernelFabricio Voznika
RET_KILL_THREAD doesn't work well for Go because it will kill only the offending thread and leave the process hanging. RET_TRAP can be masked out and it's not guaranteed to kill the process. RET_KILL_PROCESS is available since 4.14. For older kernel, continue to use RET_TRAP as this is the best option (likely to kill process, easy to debug). PiperOrigin-RevId: 222357867 Change-Id: Icc1d7d731274b16c2125b7a1ba4f7883fbdb2cbd
2018-11-20Add unsupported syscall events for get/setsockoptFabricio Voznika
PiperOrigin-RevId: 222148953 Change-Id: I21500a9f08939c45314a6414e0824490a973e5aa
2018-11-08Implement sync_file_range()Andrei Vagin
sync_file_range - sync a file segment with disk In Linux, sync_file_range() accepts three flags: SYNC_FILE_RANGE_WAIT_BEFORE Wait upon write-out of all pages in the specified range that have already been submitted to the device driver for write-out before performing any write. SYNC_FILE_RANGE_WRITE Initiate write-out of all dirty pages in the specified range which are not presently submitted write-out. Note that even this may block if you attempt to write more than request queue size. SYNC_FILE_RANGE_WAIT_AFTER Wait upon write-out of all pages in the range after performing any write. In this implementation: SYNC_FILE_RANGE_WAIT_BEFORE without SYNC_FILE_RANGE_WAIT_AFTER isn't supported right now. SYNC_FILE_RANGE_WRITE is skipped. It should initiate write-out of all dirty pages, but it doesn't wait, so it should be safe to do nothing while nobody uses SYNC_FILE_RANGE_WAIT_BEFORE. SYNC_FILE_RANGE_WAIT_AFTER is equal to fdatasync(). In Linux, sync_file_range() doesn't writes out the file's meta-data, but fdatasync() does if a file size is changed. PiperOrigin-RevId: 220730840 Change-Id: Iae5dfb23c2c916967d67cf1a1ad32f25eb3f6286
2018-10-20Add more unimplemented syscall eventsFabricio Voznika
Added events for *ctl syscalls that may have multiple different commands. For runsc, each syscall event is only logged once. For *ctl syscalls, use the cmd as identifier, not only the syscall number. PiperOrigin-RevId: 218015941 Change-Id: Ie3c19131ae36124861e9b492a7dbe1765d9e5e59
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-09Add memunit to sysinfo(2).Brian Geffon
Also properly add padding after Procs in the linux.Sysinfo structure. This will be implicitly padded to 64bits so we need to do the same. PiperOrigin-RevId: 216372907 Change-Id: I6eb6a27800da61d8f7b7b6e87bf0391a48fdb475
2018-10-08Statfs Namelen should be NAME_MAX not PATH_MAXMichael Pratt
We accidentally set the wrong maximum. I've also added PATH_MAX and NAME_MAX to the linux abi package. PiperOrigin-RevId: 216221311 Change-Id: I44805fcf21508831809692184a0eba4cee469633
2018-10-03Implement TIOCSCTTY ioctl as a noop.Nicolas Lacasse
PiperOrigin-RevId: 215658757 Change-Id: If63b33293f3e53a7f607ae72daa79e2b7ef6fcfd
2018-10-01Add itimer types to linux package, straceMichael Pratt
PiperOrigin-RevId: 215278262 Change-Id: Icd10384c99802be6097be938196044386441e282
2018-09-27Forward ioctl(TCSETSF) calls on host ttys to the host kernel.Nicolas Lacasse
We already forward TCSETS and TCSETSW. TCSETSF is roughly equivalent but discards pending input. The filters were relaxed to allow host ioctls with TCSETSF argument. This fixes programs like "passwd" that prevent user input from being displayed on the terminal. Before: root@b8a0240fc836:/# passwd Enter new UNIX password: 123 Retype new UNIX password: 123 passwd: password updated successfully After: root@ae6f5dabe402:/# passwd Enter new UNIX password: Retype new UNIX password: passwd: password updated successfully PiperOrigin-RevId: 214869788 Change-Id: I31b4d1373c1388f7b51d0f2f45ce40aa8e8b0b58
2018-09-14Reuse readlink parameter, add sockaddr max.Michael Pratt
PiperOrigin-RevId: 213058623 Change-Id: I522598c655d633b9330990951ff1c54d1023ec29
2018-09-05Open(2) isn't honoring O_NOFOLLOWBrian Geffon
PiperOrigin-RevId: 211644897 Change-Id: I882ed827a477d6c03576463ca5bf2d6351892b90
2018-08-27Add /proc/sys/kernel/shm[all,max,mni].Brian Geffon
PiperOrigin-RevId: 210459956 Change-Id: I51859b90fa967631e0a54a390abc3b5541fbee66
2018-08-27runsc: Terminal resizing support.Kevin Krakauer
Implements the TIOCGWINSZ and TIOCSWINSZ ioctls, which allow processes to resize the terminal. This allows, for example, sshd to properly set the window size for ssh sessions. PiperOrigin-RevId: 210392504 Change-Id: I0d4789154d6d22f02509b31d71392e13ee4a50ba
2018-08-24runsc: Terminal support for "docker exec -ti".Nicolas Lacasse
This CL adds terminal support for "docker exec". We previously only supported consoles for the container process, but not exec processes. The SYS_IOCTL syscall was added to the default seccomp filter list, but only for ioctls that get/set winsize and termios structs. We need to allow these ioctl for all containers because it's possible to run "exec -ti" on a container that was started without an attached console, after the filters have been installed. Note that control-character signals are still not properly supported. Tested with: $ docker run --runtime=runsc -it alpine In another terminial: $ docker exec -it <containerid> /bin/sh PiperOrigin-RevId: 210185456 Change-Id: I6d2401e53a7697bb988c120a8961505c335f96d9
2018-08-23Implement POSIX per-process interval timers.Jamie Liu
PiperOrigin-RevId: 210021612 Change-Id: If7c161e6fd08cf17942bfb6bc5a8d2c4e271c61e
2018-08-14Automated rollback of changelist 208284483Nicolas Lacasse
PiperOrigin-RevId: 208685417 Change-Id: Ie2849c4811e3a2d14a002f521cef018ded0c6c4a
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
2018-08-09Fix missing O_LARGEFILE from O_CREAT filesMichael Pratt
Cleanup some more syscall.O_* references while we're here. PiperOrigin-RevId: 208133460 Change-Id: I48db71a38f817e4f4673977eafcc0e3874eb9a25
2018-08-08Basic support for ip link/addr and ifconfigFabricio Voznika
Closes #94 PiperOrigin-RevId: 207997580 Change-Id: I19b426f1586b5ec12f8b0cd5884d5b401d334924
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
2018-08-01Automated 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
2018-07-27Added 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
2018-07-17Add API to decode 'stat.st_rdev' into major and minor numbers.Neel Natu
PiperOrigin-RevId: 204936533 Change-Id: Ib060920077fc914f97c4a0548a176d1368510c7b
2018-07-16Add CPUID faulting for ptrace and KVM.Adin Scannell
PiperOrigin-RevId: 204858314 Change-Id: I8252bf8de3232a7a27af51076139b585e73276d4
2018-07-16Add EventOperations.HostFD()Neel Natu
This method allows an eventfd inside the Sentry to be registered with with the host kernel. Update comment about memory mapping host fds via CachingInodeOperations. PiperOrigin-RevId: 204784859 Change-Id: I55823321e2d84c17ae0f7efaabc6b55b852ae257
2018-07-11Move ptrace constants to abi/linux.Jamie Liu
PiperOrigin-RevId: 204188763 Change-Id: I5596ab7abb3ec9e210a7f57b3fc420e836fa43f3
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
2018-05-17Implement sysv shm.Rahat Mahmood
PiperOrigin-RevId: 197058289 Change-Id: I3946c25028b7e032be4894d61acb48ac0c24d574
2018-05-11sentry: Adds canonical mode support.Kevin Krakauer
PiperOrigin-RevId: 196331627 Change-Id: Ifef4485f8202c52481af317cedd52d2ef48cea6a
2018-05-11Implement MAP_32BIT.Jamie Liu
PiperOrigin-RevId: 196281052 Change-Id: Ie620a0f983a1bf2570d0003d4754611879335c1c
2018-05-08Correct definition of SysV IPC structures.Jamie Liu
PiperOrigin-RevId: 195849066 Change-Id: If2146c7ce649522f86e661c5e52a9983345d6967
2018-05-04Fix runsc capabilitiesFabricio Voznika
There was a typo and one new capability missing from the list PiperOrigin-RevId: 195427713 Change-Id: I6d9e1c6e77b48fe85ef10d9f54c70c8a7271f6e7
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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