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2021-04-29Implement epoll_pwait2.Jing Chen
PiperOrigin-RevId: 371216407
2021-04-29Automated rollback of changelist 370733869Michael Pratt
PiperOrigin-RevId: 371131985
2021-04-27Remove uses of the binary package from networking code.Rahat Mahmood
Co-Author: ayushranjan PiperOrigin-RevId: 370785009
2021-04-27Fix SyscallInfo for epoll_pwait in strace.Jing Chen
PiperOrigin-RevId: 370733869
2021-03-29[syserror] Split usermem packageZach Koopmans
Split usermem package to help remove syserror dependency in go_marshal. New hostarch package contains code not dependent on syserror. PiperOrigin-RevId: 365651233
2021-03-03[op] Replace syscall package usage with golang.org/x/sys/unix in pkg/.Ayush Ranjan
The syscall package has been deprecated in favor of golang.org/x/sys. Note that syscall is still used in the following places: - pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities are not yet available in golang.org/x/sys. - syscall.Stat_t is still used in some places because os.FileInfo.Sys() still returns it and not unix.Stat_t. Updates #214 PiperOrigin-RevId: 360701387
2020-12-02[netstack] Refactor common utils out of netstack to socket package.Ayush Ranjan
Moved AddressAndFamily() and ConvertAddress() to socket package from netstack. This helps because these utilities are used by sibling netstack packages. Such sibling dependencies can later cause circular dependencies. Common utils shared between siblings should be moved up to the parent. PiperOrigin-RevId: 345275571
2020-09-29Replace remaining uses of reflection-based marshalling.Rahat Mahmood
- Rewrite arch.Stack.{Push,Pop}. For the most part, stack now implements marshal.CopyContext and can be used as the target of marshal operations. Stack.Push had some extra logic for automatically null-terminating slices. This was only used for two specific types of slices, and is now handled explicitly. - Delete usermem.CopyObject{In,Out}. - Replace most remaining uses of the encoding/binary package with go-marshal. Most of these were using the binary package to compute the size of a struct, which go-marshal can directly replace. ~3 uses of the binary package remain. These aren't reasonably replaceable by go-marshal: for example one use is to construct the syscall trampoline for systrap. - Fill out remaining convenience wrappers in the primitive package. PiperOrigin-RevId: 334502375
2020-09-15Enable automated marshalling for the syscall package.Rahat Mahmood
PiperOrigin-RevId: 331940975
2020-08-19ip6tables: move ipv4-specific logic into its own fileKevin Krakauer
A later change will introduce the equivalent IPv6 logic. #3549 PiperOrigin-RevId: 327499064
2020-08-03Plumbing context.Context to DecRef() and Release().Nayana Bidari
context is passed to DecRef() and Release() which is needed for SO_LINGER implementation. PiperOrigin-RevId: 324672584
2020-07-31iptables: support SO_ORIGINAL_DSTKevin Krakauer
Envoy (#170) uses this to get the original destination of redirected packets.
2020-07-27Fix strace for epoll event arrays.Jamie Liu
PiperOrigin-RevId: 323491461
2020-04-16Make ExtractErrno a functionFabricio Voznika
PiperOrigin-RevId: 306891171
2020-04-10Remove TODO from kernel.StracerFabricio Voznika
The dependency strace=>kernel grew over time. strace also depends on task's FD table and FSContext. It could be fixed with some interfaces the other way, but then we're trading an interface for another, and kernel.Stracer is likely cleaner. Closes #155 PiperOrigin-RevId: 305909678
2020-02-25Add netlink sockopt logging to strace.Ian Gudger
PiperOrigin-RevId: 297220008
2020-02-20Better strace logging for epoll syscalls.gVisor bot
Example: epoll_ctl(0x3 anon_inode:[eventpoll], EPOLL_CTL_ADD, 0x6 anon_inode:[eventfd], 0x7efe2fd92a80 {events=EPOLLIN|EPOLLOUT data=0x10203040506070a}) = 0x0 (4.411µs) epoll_wait(0x3 anon_inode:[eventpoll], 0x7efe2fd92b50 {{events=EPOLLOUT data=0x102030405060708}{events=EPOLLOUT data=0x102030405060708}{events=EPOLLOUT data=0x102030405060708}}, 0x3, 0xffffffff) = 0x3 (29.891µs) PiperOrigin-RevId: 296258146
2020-02-14Plumb VFS2 inside the SentrygVisor bot
- Added fsbridge package with interface that can be used to open and read from VFS1 and VFS2 files. - Converted ELF loader to use fsbridge - Added VFS2 types to FSContext - Added vfs.MountNamespace to ThreadGroup Updates #1623 PiperOrigin-RevId: 295183950
2020-02-11Move Align{Up,Down} into binary package.gVisor bot
PiperOrigin-RevId: 294477647
2020-02-07Log level, optname, optval and optlen in getsockopt/setsockopt in strace.Ian Gudger
Log 8, 16, and 32 int optvals and dump the memory of other sizes. Updates #1782 PiperOrigin-RevId: 293889388
2020-01-28Check sigsetsize in rt_sigactionMichael Pratt
This isn't in the libc wrapper, but it is in the syscall itself. Discovered by @xiaobo55x in #1625. PiperOrigin-RevId: 291973931
2020-01-27Update package locations.Adin Scannell
Because the abi will depend on the core types for marshalling (usermem, context, safemem, safecopy), these need to be flattened from the sentry directory. These packages contain no sentry-specific details. PiperOrigin-RevId: 291811289
2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-13Allow dual stack sockets to operate on AF_INETTamir Duberstein
Fixes #1490 Fixes #1495 PiperOrigin-RevId: 289523250
2020-01-09Merge pull request #1423 from xiaobo55x:stracegVisor bot
PiperOrigin-RevId: 288965915
2019-12-20Check for valid nfds before copying in an fd set.Dean Deng
Otherwise, CopyInFDSet will try to allocate a negative-length slice. PiperOrigin-RevId: 286584907
2019-12-18Enable pkg/sentry/strace support on arm64.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I006a1845b6aab2c2fdb9d80fffc1868a6a132ecd
2019-12-16Drop unnecessary cast.Dean Deng
Bitshift operators with signed int is supported in Go 1.13. PiperOrigin-RevId: 285853622
2019-12-10Format fd_set parameters in select(2)/pselect(2) for strace.Dean Deng
I1202 14:55:06.835076 7991 x:0] [ 1] select_test E select(0xa, 0x7fc6ce924c28 [0 1], null, null, 0x7fc6ce924c08 {sec=0 usec=0}) I1202 14:55:06.835102 7991 x:0] [ 1] select_test X select(0xa, 0x7fc6ce924c28 [0 1], null, null, 0x7fc6ce924c08 {sec=0 usec=0}) PiperOrigin-RevId: 284831805
2019-12-10Add all upstream syscalls to tablesMichael Pratt
Package strace is missing some syscalls we actually implement (e.g., getrandom). We also see newer syscalls sometimes (e.g., membarrier) that would be handy to have formatted. Let's go ahead and add all syscalls in the latest upstream release (v5.4), even though we only intend to implement v4.4. None of them are implemented, just included as placeholders. PiperOrigin-RevId: 284797577
2019-12-03strace: don't create a slice with a negative valueAndrei Vagin
PiperOrigin-RevId: 283613824
2019-11-21Import and structure cleanup.Adin Scannell
PiperOrigin-RevId: 281795269
2019-10-07Rename epsocket to netstack.Kevin Krakauer
PiperOrigin-RevId: 273365058
2019-09-23internal BUILD file cleanup.gVisor bot
PiperOrigin-RevId: 270680704
2019-09-05Better strace logs for statx.Nicolas Lacasse
PiperOrigin-RevId: 267498537
2019-08-16netstack: disconnect an unix socket only if the address family is AF_UNSPECAndrei Vagin
Linux allows to call connect for ANY and the zero port. PiperOrigin-RevId: 263892534
2019-07-03netstack/udp: connect with the AF_UNSPEC address family means disconnectAndrei Vagin
PiperOrigin-RevId: 256433283
2019-07-02Remove map from fd_map, change to fd_table.Adin Scannell
This renames FDMap to FDTable and drops the kernel.FD type, which had an entire package to itself and didn't serve much use (it was freely cast between types, and served as more of an annoyance than providing any protection.) Based on BenchmarkFDLookupAndDecRef-12, we can expect 5-10 ns per lookup operation, and 10-15 ns per concurrent lookup operation of savings. This also fixes two tangential usage issues with the FDMap. Namely, non-atomic use of NewFDFrom and associated calls to Remove (that are both racy and fail to drop the reference on the underlying file.) PiperOrigin-RevId: 256285890
2019-06-27Fix various spelling issues in the documentationMichael Pratt
Addresses obvious typos, in the documentation only. COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/443 from Pixep:fix/documentation-spelling 4d0688164eafaf0b3010e5f4824b35d1e7176d65 PiperOrigin-RevId: 255477779
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-06-06Use common definition of SockType.Rahat Mahmood
SockType isn't specific to unix domain sockets, and the current definition basically mirrors the linux ABI's definition. PiperOrigin-RevId: 251956740
2019-04-29Change copyright notice to "The gVisor Authors"Michael Pratt
Based on the guidelines at https://opensource.google.com/docs/releasing/authors/. 1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./' 2. Manual fixup of "Google Inc" references. 3. Add AUTHORS file. Authors may request to be added to this file. 4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS. Fixes #209 PiperOrigin-RevId: 245823212 Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-29Allow and document bug ids in gVisor codebase.Nicolas Lacasse
PiperOrigin-RevId: 245818639 Change-Id: I03703ef0fb9b6675955637b9fe2776204c545789
2019-04-18Format struct pollfd in poll(2)/ppoll(2)Michael Pratt
I0410 15:40:38.854295 3776 x:0] [ 1] poll_test E poll(0x2b00bfb5c020 [{FD: 0x3 anon_inode:[eventfd], Events: POLLOUT, REvents: ...}], 0x1, 0x1) I0410 15:40:38.854348 3776 x:0] [ 1] poll_test X poll(0x2b00bfb5c020 [{FD: 0x3 anon_inode:[eventfd], Events: POLLOUT|POLLERR|POLLHUP, REvents: POLLOUT}], 0x1, 0x1) = 0x1 (10.765?s) PiperOrigin-RevId: 244269879 Change-Id: If07ba54a486fdeaaedfc0123769b78d1da862307
2019-04-11Format FDs in strace logsMichael Pratt
Normal files display their path in the current mount namespace: I0410 10:57:54.964196 216336 x:0] [ 1] ls X read(0x3 /proc/filesystems, 0x55cee3bdb2c0 "nodev\t9p\nnodev\tdevpts \nnodev\tdevtmpfs\nnodev\tproc\nnodev\tramdiskfs\nnodev\tsysfs\nnodev\ttmpfs\n", 0x1000) = 0x58 (24.462?s) AT_FDCWD includes the CWD: I0411 12:58:48.278427 1526 x:0] [ 1] stat_test E newfstatat(AT_FDCWD /home/prattmic, 0x55ea719b564e /proc/self, 0x7ef5cefc2be8, 0x0) Sockets (and other non-vfs files) display an inode number (like /proc/PID/fd): I0410 10:54:38.909123 207684 x:0] [ 1] nc E bind(0x3 socket:[1], 0x55b5a1652040 {Family: AF_INET, Addr: , Port: 8080}, 0x10) I also fixed a few syscall args that should be Path. PiperOrigin-RevId: 243169025 Change-Id: Ic7dda6a82ae27062fe2a4a371557acfd6a21fa2a
2019-04-10Internal changeMichael Pratt
PiperOrigin-RevId: 242978508 Change-Id: I0ea59ac5ba1dd499e87c53f2e24709371048679b
2019-03-01Format capget/capset argumentsMichael Pratt
I0225 15:32:10.795034 4166 x:0] [ 6] E capget(0x7f477fdff8c8 {Version: 3, Pid: 0}, 0x7f477fdff8b0) I0225 15:32:10.795059 4166 x:0] [ 6] X capget(0x7f477fdff8c8 {Version: 3, Pid: 0}, 0x7f477fdff8b0 {Permitted: CAP_CHOWN|CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_FOWNER|CAP_FSETID|CAP_KILL|CAP_SETGID|CAP_SETUID|CAP_SETPCAP|CAP_LINUX_IMMUTABLE|CAP_NET_BIND_SERVICE|CAP_NET_BROADCAST|CAP_NET_ADMIN|CAP_NET_RAW|CAP_IPC_LOCK|CAP_IPC_OWNER|CAP_SYS_MODULE|CAP_SYS_RAWIO|CAP_SYS_CHROOT|CAP_SYS_PTRACE|CAP_SYS_PACCT|CAP_SYS_ADMIN|CAP_SYS_BOOT|CAP_SYS_NICE|CAP_SYS_RESOURCE|CAP_SYS_TIME|CAP_SYS_TTY_CONFIG|CAP_MKNOD|CAP_LEASE|CAP_AUDIT_WRITE|CAP_AUDIT_CONTROL|CAP_SETFCAP|CAP_MAC_OVERRIDE|CAP_MAC_ADMIN|CAP_SYSLOG|CAP_WAKE_ALARM|CAP_BLOCK_SUSPEND|CAP_AUDIT_READ, Inheritable: CAP_CHOWN|CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_FOWNER|CAP_FSETID|CAP_KILL|CAP_SETGID|CAP_SETUID|CAP_SETPCAP|CAP_LINUX_IMMUTABLE|CAP_NET_BIND_SERVICE|CAP_NET_BROADCAST|CAP_NET_ADMIN|CAP_NET_RAW|CAP_IPC_LOCK|CAP_IPC_OWNER|CAP_SYS_MODULE|CAP_SYS_RAWIO|CAP_SYS_CHROOT|CAP_SYS_PTRACE|CAP_SYS_PACCT|CAP_SYS_ADMIN|CAP_SYS_BOOT|CAP_SYS_NICE|CAP_SYS_RESOURCE|CAP_SYS_TIME|CAP_SYS_TTY_CONFIG|CAP_MKNOD|CAP_LEASE|CAP_AUDIT_WRITE|CAP_AUDIT_CONTROL|CAP_SETFCAP|CAP_MAC_OVERRIDE|CAP_MAC_ADMIN|CAP_SYSLOG|CAP_WAKE_ALARM|CAP_BLOCK_SUSPEND|CAP_AUDIT_READ, Effective: 0x0}) = 0x0 (3.399?s) I0225 15:32:10.795114 4166 x:0] [ 6] E capset(0x7f477fdff8c8 {Version: 3, Pid: 0}, 0x7f477fdff8b0 {Permitted: CAP_CHOWN|CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_FOWNER|CAP_FSETID|CAP_KILL|CAP_SETGID|CAP_SETUID|CAP_SETPCAP|CAP_LINUX_IMMUTABLE|CAP_NET_BIND_SERVICE|CAP_NET_BROADCAST|CAP_NET_ADMIN|CAP_NET_RAW|CAP_IPC_LOCK|CAP_IPC_OWNER|CAP_SYS_MODULE|CAP_SYS_RAWIO|CAP_SYS_CHROOT|CAP_SYS_PTRACE|CAP_SYS_PACCT|CAP_SYS_ADMIN|CAP_SYS_BOOT|CAP_SYS_NICE|CAP_SYS_RESOURCE|CAP_SYS_TIME|CAP_SYS_TTY_CONFIG|CAP_MKNOD|CAP_LEASE|CAP_AUDIT_WRITE|CAP_AUDIT_CONTROL|CAP_SETFCAP|CAP_MAC_OVERRIDE|CAP_MAC_ADMIN|CAP_SYSLOG|CAP_WAKE_ALARM|CAP_BLOCK_SUSPEND|CAP_AUDIT_READ, Inheritable: CAP_CHOWN|CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_FOWNER|CAP_FSETID|CAP_KILL|CAP_SETGID|CAP_SETUID|CAP_SETPCAP|CAP_LINUX_IMMUTABLE|CAP_NET_BIND_SERVICE|CAP_NET_BROADCAST|CAP_NET_ADMIN|CAP_NET_RAW|CAP_IPC_LOCK|CAP_IPC_OWNER|CAP_SYS_MODULE|CAP_SYS_RAWIO|CAP_SYS_CHROOT|CAP_SYS_PTRACE|CAP_SYS_PACCT|CAP_SYS_ADMIN|CAP_SYS_BOOT|CAP_SYS_NICE|CAP_SYS_RESOURCE|CAP_SYS_TIME|CAP_SYS_TTY_CONFIG|CAP_MKNOD|CAP_LEASE|CAP_AUDIT_WRITE|CAP_AUDIT_CONTROL|CAP_SETFCAP|CAP_MAC_OVERRIDE|CAP_MAC_ADMIN|CAP_SYSLOG|CAP_WAKE_ALARM|CAP_BLOCK_SUSPEND|CAP_AUDIT_READ, Effective: CAP_FOWNER}) I0225 15:32:10.795127 4166 x:0] [ 6] X capset(0x7f477fdff8c8 {Version: 3, Pid: 0}, 0x7f477fdff8b0 {Permitted: CAP_CHOWN|CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_FOWNER|CAP_FSETID|CAP_KILL|CAP_SETGID|CAP_SETUID|CAP_SETPCAP|CAP_LINUX_IMMUTABLE|CAP_NET_BIND_SERVICE|CAP_NET_BROADCAST|CAP_NET_ADMIN|CAP_NET_RAW|CAP_IPC_LOCK|CAP_IPC_OWNER|CAP_SYS_MODULE|CAP_SYS_RAWIO|CAP_SYS_CHROOT|CAP_SYS_PTRACE|CAP_SYS_PACCT|CAP_SYS_ADMIN|CAP_SYS_BOOT|CAP_SYS_NICE|CAP_SYS_RESOURCE|CAP_SYS_TIME|CAP_SYS_TTY_CONFIG|CAP_MKNOD|CAP_LEASE|CAP_AUDIT_WRITE|CAP_AUDIT_CONTROL|CAP_SETFCAP|CAP_MAC_OVERRIDE|CAP_MAC_ADMIN|CAP_SYSLOG|CAP_WAKE_ALARM|CAP_BLOCK_SUSPEND|CAP_AUDIT_READ, Inheritable: CAP_CHOWN|CAP_DAC_OVERRIDE|CAP_DAC_READ_SEARCH|CAP_FOWNER|CAP_FSETID|CAP_KILL|CAP_SETGID|CAP_SETUID|CAP_SETPCAP|CAP_LINUX_IMMUTABLE|CAP_NET_BIND_SERVICE|CAP_NET_BROADCAST|CAP_NET_ADMIN|CAP_NET_RAW|CAP_IPC_LOCK|CAP_IPC_OWNER|CAP_SYS_MODULE|CAP_SYS_RAWIO|CAP_SYS_CHROOT|CAP_SYS_PTRACE|CAP_SYS_PACCT|CAP_SYS_ADMIN|CAP_SYS_BOOT|CAP_SYS_NICE|CAP_SYS_RESOURCE|CAP_SYS_TIME|CAP_SYS_TTY_CONFIG|CAP_MKNOD|CAP_LEASE|CAP_AUDIT_WRITE|CAP_AUDIT_CONTROL|CAP_SETFCAP|CAP_MAC_OVERRIDE|CAP_MAC_ADMIN|CAP_SYSLOG|CAP_WAKE_ALARM|CAP_BLOCK_SUSPEND|CAP_AUDIT_READ, Effective: CAP_FOWNER}) = 0x0 (3.062?s) Not the most readable, but better than just a pointer. PiperOrigin-RevId: 236338875 Change-Id: I4b83f778122ab98de3874e16f4258dae18da916b
2019-01-31Remove license commentsMichael Pratt
Nothing reads them and they can simply get stale. Generated with: $ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD PiperOrigin-RevId: 231818945 Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
2018-12-21inotify notifies watchers when control events bit are setFabricio Voznika
The code that matches the event being published with events watchers was wronly matching all watchers in case any of the control event bits were set. Issue #121 PiperOrigin-RevId: 226521230 Change-Id: Ie2c42bc4366faaf59fbf80a74e9297499bd93f9e
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
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 07:28:55 +0000