Age | Commit message (Collapse) | Author |
|
Having raw socket code together will make it easier to add support for other raw
network protocols. Currently, only ICMP uses the raw endpoint. However, adding
support for other protocols such as UDP shouldn't be much more difficult than
adding a few switch cases.
PiperOrigin-RevId: 241564875
Change-Id: I77e03adafe4ce0fd29ba2d5dfdc547d2ae8f25bf
|
|
We weren't saving simple devices' last allocated inode numbers, which
caused inode number reuse across S/R.
PiperOrigin-RevId: 241414245
Change-Id: I964289978841ef0a57d2fa48daf8eab7633c1284
|
|
This reveals a bug in the tests that require CAP_SET{UID,GID}: After the
child process enters the new user namespace, it ceases to have the
relevant capability in the parent user namespace, so the privileged
write must be done by the parent process. Change tests accordingly.
PiperOrigin-RevId: 241412765
Change-Id: I587c1f24aa6f2180fb2e5e5c0162691ba5bac1bc
|
|
- Make the body of InForkedProcess async-signal-safe.
- Pass the correct path to open().
PiperOrigin-RevId: 241348774
Change-Id: I753dfa36e4fb05521e659c173e3b7db0c7fc159b
|
|
PiperOrigin-RevId: 241037926
Change-Id: I4b0381ac1c7575e8b861291b068d3da22bc03850
|
|
When fork a child process, the name filed of TaskContext is not set.
It results in that when we cat /proc/{pid}/status, the name filed is
null.
Like this:
Name:
State: S (sleeping)
Tgid: 28
Pid: 28
PPid: 26
TracerPid: 0
FDSize: 8
VmSize: 89712 kB
VmRSS: 6648 kB
Threads: 1
CapInh: 00000000a93d35fb
CapPrm: 0000000000000000
CapEff: 0000000000000000
CapBnd: 00000000a93d35fb
Seccomp: 0
Change-Id: I5d469098c37cedd19da16b7ffab2e546a28a321e
PiperOrigin-RevId: 240893304
|
|
PiperOrigin-RevId: 240850187
Change-Id: I1458581b771a1031e47bba439e480829794927b8
|
|
- Document fsutil.CachedFileObject.FD() requirements on access
permissions, and change gofer.inodeFileState.FD() to honor them.
Fixes #147.
- Combine gofer.inodeFileState.readonly and
gofer.inodeFileState.readthrough, and simplify handle caching logic.
- Inline gofer.cachePolicy.cacheHandles into
gofer.inodeFileState.setSharedHandles, because users with access to
gofer.inodeFileState don't necessarily have access to the fs.Inode
(predictably, this is a save/restore problem).
Before this CL:
$ docker run --runtime=runsc-d -v $(pwd)/gvisor/repro:/root/repro -it ubuntu bash
root@34d51017ed67:/# /root/repro/runsc-b147
mmap: 0x7f3c01e45000
Segmentation fault
After this CL:
$ docker run --runtime=runsc-d -v $(pwd)/gvisor/repro:/root/repro -it ubuntu bash
root@d3c3cb56bbf9:/# /root/repro/runsc-b147
mmap: 0x7f78987ec000
o
PiperOrigin-RevId: 240818413
Change-Id: I49e1d4a81a0cb9177832b0a9f31a10da722a896b
|
|
PiperOrigin-RevId: 240681675
Change-Id: Ib214106e303669fca2d5c744ed5c18e835775161
|
|
The start time is the number of clock ticks between the boot time and
application start time.
PiperOrigin-RevId: 240619475
Change-Id: Ic8bd7a73e36627ed563988864b0c551c052492a5
|
|
Memfds are simply anonymous tmpfs files with no associated
mounts. Also implementing file seals, which Linux only implements for
memfds at the moment.
PiperOrigin-RevId: 240450031
Change-Id: I31de78b950101ae8d7a13d0e93fe52d98ea06f2f
|
|
PiperOrigin-RevId: 239896221
Change-Id: I0949981fe50c57131c5631cdeb10b225648575c0
|
|
PiperOrigin-RevId: 239803092
Change-Id: I42d612ed6a889e011e8474538958c6de90c6fcab
|
|
PiperOrigin-RevId: 239718991
Change-Id: Idc78557a8e9bfdd3cb7d8ec4db708364652640a4
|
|
PiperOrigin-RevId: 239714368
Change-Id: I35860b880a1d8885eb8c2d4ff267caaf72d91088
|
|
.net sets these flags to -1 and then uses their result, especting it to be
zero.
Does not set actual flags (e.g. MSG_TRUNC), but setting to zero is more correct
than what we did before.
PiperOrigin-RevId: 239657951
Change-Id: I89c5f84bc9b94a2cd8ff84e8ecfea09e01142030
|
|
See: https://tools.ietf.org/html/rfc6691#section-2
PiperOrigin-RevId: 239305632
Change-Id: Ie8eb912a43332e6490045dc95570709c5b81855e
|
|
In the case of a rename replacing an existing destination inode, ramfs
Rename failed to first remove the replaced inode. This caused:
1. A leak of a reference to the inode (making it live indefinitely).
2. For directories, a leak of the replaced directory's .. link to the
parent. This would cause the parent's link count to incorrectly
increase.
(2) is much simpler to test than (1), so that's what I've done.
agentfs has a similar bug with link count only, so the Dirent layer
informs the Inode if this is a replacing rename.
Fixes #133
PiperOrigin-RevId: 239105698
Change-Id: I4450af2462d8ae3339def812287213d2cbeebde0
|
|
PiperOrigin-RevId: 239026571
Change-Id: Ifd01674855094f3abad497776f418023452033a1
|
|
PiperOrigin-RevId: 238474202
Change-Id: Ib8c431e973e8cf1e1c8ee2f8c1978ddb8e88b0b8
|
|
getsockopt(IP_MULTICAST_IF) only supports struct in_addr.
Also adds support for setsockopt(IP_MULTICAST_IF) with struct in_addr.
PiperOrigin-RevId: 237620230
Change-Id: I75e7b5b3e08972164eb1906f43ddd67aedffc27c
|
|
This is the correct Linux behavior, and at least PHP depends on it.
PiperOrigin-RevId: 237565639
Change-Id: I931af09c8ed99a842cf70d22bfe0b65e330c4137
|
|
PiperOrigin-RevId: 237559843
Change-Id: I93a9d83a08cd3d49d5fc7fcad5b0710d0aa04aaa
|
|
IP_MULTICAST_LOOP controls whether or not multicast packets sent on the default
route are looped back. In order to implement this switch, support for sending
and looping back multicast packets on the default route had to be implemented.
For now we only support IPv4 multicast.
PiperOrigin-RevId: 237534603
Change-Id: I490ac7ff8e8ebef417c7eb049a919c29d156ac1c
|
|
* open_create_test_runsc_ptrace_shared doesn't expect the write access to /
* exec_test_runsc_ptrace_shared could not find /usr/share/zoneinfo/
* clock_gettime_test_runsc_ptrace_shared didn't expect that
a thread cpu time can be zero.
* affinity_test_runsc_ptrace_shared expected minimum 3 cpus
PiperOrigin-RevId: 237509429
Change-Id: I477937e5d2cdf3f8720836bfa972abd35d8220a3
|
|
ScopedSigaction is not async-signal-safe, so it cannot be used after fork.
Replace it with plain sigaction, which is safe. This is in a unique child
anyways, so it doesn't need any cleanup.
PiperOrigin-RevId: 237102411
Change-Id: I5c6ea373bbac67b9c4db204ceb1db62d338d9178
|
|
It is Implemented without the priority inheritance part given
that gVisor defers scheduling decisions to Go runtime and doesn't
have control over it.
PiperOrigin-RevId: 236989545
Change-Id: I714c8ca0798743ecf3167b14ffeb5cd834302560
|
|
Tests using DisableSave because a portion of the test is *incompatible*
with S/R clearly cannot use random S/R, as the saves may occur in the
DisableSave critical section.
Most such tests already have NoRandomSave. Add it to the rest.
PiperOrigin-RevId: 236914708
Change-Id: Iee1cf044cfa7cb8d5aba21ddc130926218210c48
|
|
PiperOrigin-RevId: 236752802
Change-Id: I9e50600b2ae25d5f2ac632c4405a7a185bdc3c92
|
|
Also added unimplemented notification for semctl(2)
commands.
PiperOrigin-RevId: 236340672
Change-Id: I0795e3bd2e6d41d7936fabb731884df426a42478
|
|
The specific issue was:
- Test creates a raw ICMP socket
- Test sends an ICMP echo request (aka ping request) to itself via loopback
- Now two events race:
- The raw socket recieves the ICMP echo request
- Netstack receives the request and generates a reply (aka ping reply),
which it sends back over loopback, where it is eventually received by the
raw socket
- The test was written to expect packets in a specific order, but they can
come in any order.
PiperOrigin-RevId: 236179066
Change-Id: I02c07c919d3d28093add3d18dd9196fbbc870813
|
|
Broadly, this change:
* Enables sockets to be created via `socket(AF_INET, SOCK_RAW, IPPROTO_ICMP)`.
* Passes the network-layer (IP) header up the stack to the transport endpoint,
which can pass it up to the socket layer. This allows a raw socket to return
the entire IP packet to users.
* Adds functions to stack.TransportProtocol, stack.Stack, stack.transportDemuxer
that enable incoming packets to be delivered to raw endpoints. New raw sockets
of other protocols (not ICMP) just need to register with the stack.
* Enables ping.endpoint to return IP headers when created via SOCK_RAW.
PiperOrigin-RevId: 235993280
Change-Id: I60ed994f5ff18b2cbd79f063a7fdf15d093d845a
|
|
PiperOrigin-RevId: 235578698
Change-Id: I608ff5e25eac97f6e1bda058511c1f82b0e3b736
|
|
This change adds support for the SO_BROADCAST socket option in gVisor Netstack.
This support includes getsockopt()/setsockopt() functionality for both UDP and
TCP endpoints (the latter being a NOOP), dispatching broadcast messages up and
down the stack, and route finding/creation for broadcast packets. Finally, a
suite of tests have been implemented, exercising this functionality through the
Linux syscall API.
PiperOrigin-RevId: 234850781
Change-Id: If3e666666917d39f55083741c78314a06defb26c
|
|
Ping sometimes uses this instead of SO_TIMESTAMP.
PiperOrigin-RevId: 234699590
Change-Id: Ibec9c34fa0d443a931557a2b1b1ecd83effe7765
|
|
PiperOrigin-RevId: 234690475
Change-Id: I1cbfb5aecd4697a4a26ec8524354aa8656cc3ba1
|
|
- Use new user namespace for namespace creation checks.
- Ensure userns is never nil since it's used by other namespaces.
PiperOrigin-RevId: 234673175
Change-Id: I4b9d9d1e63ce4e24362089793961a996f7540cd9
|
|
In addition to simplifying the implementation, this fixes two bugs:
- seqfile.NewSeqFile unconditionally creates an inode with mode 0444,
but {uid,gid}_map have mode 0644.
- idMapSeqFile.Write implements fs.FileOperations.Write ... but it
doesn't implement any other fs.FileOperations methods and is never
used as fs.FileOperations. idMapSeqFile.GetFile() =>
seqfile.SeqFile.GetFile() uses seqfile.seqFileOperations instead,
which rejects all writes.
PiperOrigin-RevId: 234638212
Change-Id: I4568f741ab07929273a009d7e468c8205a8541bc
|
|
This allows setting a default send interface for IPv4 multicast. IPv6 support
will come later.
PiperOrigin-RevId: 234251379
Change-Id: I65922341cd8b8880f690fae3eeb7ddfa47c8c173
|
|
PiperOrigin-RevId: 233516412
Change-Id: I7a0f1443de7eeebb5d8ad59e4759ca2e036a3c4d
|
|
Also switch to the correct casing style for local address variables.
PiperOrigin-RevId: 233161128
Change-Id: Ibc4a10a5d3ab04c40907aa885e8237b255c65a79
|
|
Also includes a few fixes for IPv4 multicast support. IPv6 support is coming in
a followup CL.
PiperOrigin-RevId: 233008638
Change-Id: If7dae6222fef43fda48033f0292af77832d95e82
|
|
PiperOrigin-RevId: 232948478
Change-Id: Ib830121e5e79afaf5d38d17aeef5a1ef97913d23
|
|
PiperOrigin-RevId: 232914984
Change-Id: Id2643d7ad8e986ca9be76d860788a71db2674cda
|
|
PiperOrigin-RevId: 232776481
Change-Id: Ic19d4aa6322fef71621bad0e9fb8bdedf6694114
|
|
Multiple tests were creating the same directory before removing it, making it
possible for concurrent tests to fail because the directory already exists.
PiperOrigin-RevId: 232389814
Change-Id: I35d409fff4b3fd864b30fee742cb587b14975c23
|
|
Nothing reads them and they can simply get stale.
Generated with:
$ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD
PiperOrigin-RevId: 231818945
Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
|
|
stdout can be (and, in automated testing, often is) a host pipe or
similar resource shared between multiple parallel tests, such that it
can become transiently full during testing.
PiperOrigin-RevId: 231413569
Change-Id: Id14991b5f71e53c894695899e65e1be4dd228cc6
|
|
PiperOrigin-RevId: 231404512
Change-Id: I31efcc23a0c4a48ef6fbba3ca07415d79290f55c
|
|
PiperOrigin-RevId: 231274510
Change-Id: I8f65157dbe18dae1c6235147fc4d27e0c844c833
|