- include packet_list.go
- exclude state.go (by renaming to include an underscore)
Also rename raw.go to endpoint.go for consistency.
PiperOrigin-RevId: 246547912
Change-Id: I19c8331c794ba683a940cc96a8be6497b53ff24d
$ dpkg -s runsc
Package: runsc
Status: install ok installed
Priority: optional
Section: contrib/devel
Maintainer: The gVisor Authors <gvisor-dev@googlegroups.com>
Architecture: amd64
Version: 20190304.1-123-g861434f612ce-dirty
Description: gVisor is a user-space kernel, written in Go, that
implements a substantial portion of the Linux system surface. It
includes an Open Container Initiative (OCI) runtime called runsc that
provides an isolation boundary between the application and the host
kernel. The runsc runtime integrates with Docker and Kubernetes,
making it simple to run sandboxed containers.
Homepage: https://gvisor.dev/
Built-Using: Bazel
Change-Id: I6f161de8fba649f12272a87b99529ccfd22e499a
PiperOrigin-RevId: 246546294
The test also times out when GCE machine has 2 CPUs. I cannot
repro it locally with a 2 CPU cgroup though. Let's skip the
test when there are 2 CPUs to stop the flakiness and retest it
once the fix is available.
PiperOrigin-RevId: 246523363
Change-Id: I9d9d922a5be3aa7bc91dff5a1807ca99f3f4a4f9
Fixed a small logic error that broke proper accounting of MultiPortEndpoints.
PiperOrigin-RevId: 246502126
Change-Id: I1a7d6ea134f811612e545676212899a3707bc2c2
This requires two changes:
1) Support for more than one socket to join a given multicast group.
2) Duplicate delivery of incoming multicast packets to all sockets listening
for it.
In addition, I tweaked the code (and added a test) to disallow duplicates
IP_ADD_MEMBERSHIP calls for the same group and NIC. This is how Linux does
it.
PiperOrigin-RevId: 246437315
Change-Id: Icad8300b4a8c3f501d9b4cd283bd3beabef88b72
With this change, we will be able to run runsc do in a host network namespace.
PiperOrigin-RevId: 246436660
Change-Id: I8ea18b1053c88fe2feed74239b915fe7a151ce34
Opensource tools (e. g. https://github.com/fatih/vim-go) can't hanlde more than
one golang package in one directory.
PiperOrigin-RevId: 246435962
Change-Id: I67487915e3838762424b2d168efc54ae34fb801f
Sandbox always runsc with IP 192.168.10.2 and the peer
network adds 1 to the address (192.168.10.3). Sandbox
IP can be changed using --ip flag.
Here a few examples:
sudo runsc do curl www.google.com
sudo runsc do --ip=10.10.10.2 bash -c "echo 123 | netcat -l -p 8080"
PiperOrigin-RevId: 246421277
Change-Id: I7b3dce4af46a57300350dab41cb27e04e4b6e9da
This feature allows MemoryFile to delay eviction of "optional"
allocations, such as unused cached file pages.
Note that this incidentally makes CachingInodeOperations writeback
asynchronous, in the sense that it doesn't occur until eviction; this is
necessary because between when a cached page becomes evictable and when
it's evicted, file writes (via CachingInodeOperations.Write) may dirty
the page.
As currently implemented, this feature won't meaningfully impact
steady-state memory usage or caching; the reclaimer goroutine will
schedule eviction as soon as it runs out of other work to do. Future CLs
increase caching by adding constraints on when eviction is scheduled.
PiperOrigin-RevId: 246014822
Change-Id: Ia85feb25a2de92a48359eb84434b6ec6f9bea2cb
Test times out when it runs on a single core. Skip until the
bug in the Go runtime is fixed.
PiperOrigin-RevId: 245866466
Change-Id: Ic3e72131c27136d58b71f6b11acc78abf55895d4
Cache last used messages and reuse them for subsequent requests.
If more messages are needed, they are created outside the cache
on demand.
PiperOrigin-RevId: 245836910
Change-Id: Icf099ddff95df420db8e09f5cdd41dcdce406c61
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
Previously, createAt was eating all errors from FindInode except for EACCES and
proceeding with the creation. This is incorrect, as FindInode can return many
other errors (like ENAMETOOLONG) that should stop creation.
This CL changes createAt to return all errors encountered except for ENOENT,
which we can ignore because we are about to create the thing.
PiperOrigin-RevId: 245773222
Change-Id: I1b317021de70f0550fb865506f6d8147d4aebc56
Add the CloseRead & CloseWrite methods that performs shutdown on the
corresponding Read & Write sides of a connection.
Change-Id: I3996a2abdc7cd68a2becba44dc4bd9f0919d2ce1
PiperOrigin-RevId: 245537950
Maximum filename length is filesystem-dependent, and obtained via
statfs::f_namelen. This limit is usually 255 bytes (NAME_MAX), but not
always. For example, VFAT supports filenames of up to 255... UCS-2
characters, which Linux conservatively takes to mean UTF-8-encoded
bytes: fs/fat/inode.c:fat_statfs(), FAT_LFN_LEN * NLS_MAX_CHARSET_SIZE.
As a result, Linux's VFS does not enforce NAME_MAX:
$ rg --maxdepth=1 '\WNAME_MAX\W' fs/ include/linux/
fs/libfs.c
38: buf->f_namelen = NAME_MAX;
64: if (dentry->d_name.len > NAME_MAX)
include/linux/relay.h
74: char base_filename[NAME_MAX]; /* saved base filename */
include/linux/fscrypt.h
149: * filenames up to NAME_MAX bytes, since base64 encoding expands the length.
include/linux/exportfs.h
176: * understanding that it is already pointing to a a %NAME_MAX+1 sized
Remove this check from core VFS, and add it to ramfs (and by extension
tmpfs), where it is actually applicable:
mm/shmem.c:shmem_dir_inode_operations.lookup == simple_lookup *does*
enforce NAME_MAX.
PiperOrigin-RevId: 245324748
Change-Id: I17567c4324bfd60e31746a5270096e75db963fac
Bazel 0.23.0 is required due to the use of cc_flags_supplier.bzl in the vdso
package. cc_flags_supplier.bzl was added in 0.23.0.
PiperOrigin-RevId: 245192715
Change-Id: I4258c064e5cc3bac2a587c887e0d8f87b6678ec7
TCP tests and the implementation will come in followup CLs.
Updates google/gvisor#206
Updates google/gvisor#207
PiperOrigin-RevId: 245121470
Change-Id: Ib50b62724d3ba0cbfb1374e1f908798431ee2b21
This CL fixes the following bugs:
- Uses atomic to set/read status instead of binary.LittleEndian.PutUint32 etc
which are not atomic.
- Increments ringOffsets for frames that are truncated (i.e status is
tpStatusCopy)
- Does not ignore frames with tpStatusLost bit set as they are valid frames and
only indicate that there some frames were lost before this one and metrics can
be retrieved with a getsockopt call.
- Adds checks to make sure blockSize is a multiple of page size. This is
required as the kernel allocates in pages per block and rejects sizes that are
not page aligned with an EINVAL.
Updates #210
PiperOrigin-RevId: 244959464
Change-Id: I5d61337b7e4c0f8a3063dcfc07791d4c4521ba1f
The caller must call Readdir() at least twice to detect
EOF. The old code was always restarting the directory
search and then skipping elements already seen, effectively
doubling the cost to read a directory. The code now
remembers the last offset and doesn't reposition the cursor
if next request comes at the same offset.
PiperOrigin-RevId: 244957816
Change-Id: If21a8dc68b76614adbcf4301439adfda40f2643f
p9.messageByType was taking 7% of p9.recv before, spending time
with reflection and map lookup. Now it's reduced to 1%.
PiperOrigin-RevId: 244947313
Change-Id: I42813f920557b7656f8b29157eb32acd79e11fa5
os.NewFile() accounts for 38% of CPU time in localFile.Walk().
This change switchs to use fd.FD which is much cheaper to create.
Now, fd.New() in localFile.Walk() accounts for only 4%.
PiperOrigin-RevId: 244944983
Change-Id: Ic892df96cf2633e78ad379227a213cb93ee0ca46
Create, Start, and Destroy were racing to create and destroy the
metadata directory of containers.
This is a re-upload of
https://gvisor-review.googlesource.com/c/gvisor/+/16260, but with the
correct account.
Change-Id: I16b7a9d0971f0df873e7f4145e6ac8f72730a4f1
PiperOrigin-RevId: 244892991
For a symbol link to some directory, eg.
`/tmp/symlink -> /tmp/dir`
`fstatat("/tmp/symlink")` should return symbol link data, but
`fstatat("/tmp/symlink/")` (symlink with trailing slash) should return
directory data it points following linux behaviour.
Currently fstatat() a symlink with trailing slash will get "not a
directory" error which is wrong.
Signed-off-by: Wei Zhang <zhangwei198900@gmail.com>
Change-Id: I63469b1fb89d083d1c1255d32d52864606fbd7e2
PiperOrigin-RevId: 244783916
Support shutdown on only the read side of an endpoint. Reads performed
after a call to Shutdown with only the ShutdownRead flag will return
ErrClosedForReceive without data.
Break out the shutdown(2) with SHUT_RD syscall test into to two tests.
The first tests that no packets are sent when shutting down the read
side of a socket. The second tests that, after shutting down the read
side of a socket, unread data can still be read, or an EOF if there is
no more data to read.
Change-Id: I9d7c0a06937909cbb466b7591544a4bcaebb11ce
PiperOrigin-RevId: 244459430
The MSG_TRUNC flag is set in the msghdr when a message is truncated.
Fixesgoogle/gvisor#200
PiperOrigin-RevId: 244440486
Change-Id: I03c7d5e7f5935c0c6b8d69b012db1780ac5b8456
Tamir Duberstein
Andrei Vagin
Andrei Vagin
Bhasker Hariharan
Fabricio Voznika
Chris Kuiper
Kevin Krakauer
Adin Scannell
Michael Pratt
Jamie Liu
Ian Gudger
Nicolas Lacasse
Googler
Ben Burkert
Ian Lewis
Wei Zhang