syserror allows packages to register translators for errors. These
translators should be called prior to checking if the error is valid,
otherwise it may not account for possible errors that can be returned
from different packages, e.g. safecopy.BusError => syserror.EFAULT.
Second attempt, it passes tests now :-)
PiperOrigin-RevId: 363714508
Transport demuxer and UDP tests should not use a loopback address as the
source address for packets injected into the stack as martian loopback
packets will be dropped in a later change.
PiperOrigin-RevId: 363479681
Loopback traffic should be stack-local but gVisor has some clients
that depend on the ability to receive loopback traffic that originated
from outside of the stack. Because of this, we guard this change behind
IP protocol options.
Test: integration_test.TestExternalLoopbackTraffic
PiperOrigin-RevId: 363461242
Netstack does not check ACK number for FIN-ACK packets and goes into TIMEWAIT
unconditionally. Fixing the state machine will give us back the retransmission
of FIN.
PiperOrigin-RevId: 363301883
There is a race in handling new incoming connections on a listening
endpoint that causes the endpoint to reply to more incoming SYNs than
what is permitted by the listen backlog.
The race occurs when there is a successful passive connection handshake
and the synRcvdCount counter is decremented, followed by the endpoint
delivered to the accept queue. In the window of time between
synRcvdCount decrementing and the endpoint being enqueued for accept,
new incoming SYNs can be handled without honoring the listen backlog
value, as the backlog could be perceived not full.
Fixes#5637
PiperOrigin-RevId: 363279372
...as per RFC 7527.
If a looped-back DAD message is received, do not fail DAD since our own
DAD message does not indicate that a neighbor has the address assigned.
Test: ndp_test.TestDADResolveLoopback
PiperOrigin-RevId: 363224288
Calling into the stack from LinkAddressRequest is not needed as we
already have a reference to the network endpoint (IPv6) or network
interface (IPv4/ARP).
PiperOrigin-RevId: 363213973
Doing so involved breaking dependencies between //pkg/tcpip and the rest
of gVisor, which are discouraged anyways.
Tested on the Go branch via:
gvisor.dev/gvisor/pkg/tcpip/...
Addresses #1446.
PiperOrigin-RevId: 363081778
If there was a partial write (when not using the host FD) which did not generate
an error, we were incorrectly returning the number of bytes attempted to write
instead of the number of bytes actually written.
PiperOrigin-RevId: 363058989
Lots of small changes:
- simplify package API via Reservation type
- rename some single-letter variable names that were hard to follow
- rename some types
PiperOrigin-RevId: 362442366
By default, fusefs defers node permission checks to the server. The
default_permissions mount option enables the usual unix permission
checks based on the node owner and mode bits. Previously fusefs was
incorrectly checking permissions unconditionally.
Additionally, fusefs should restrict filesystem access to processes
started by the mount owner to prevent the fuse daemon from gaining
priviledge over other processes. The allow_other mount option
overrides this behaviour. Previously fusefs was incorrectly skipping
this check.
Updates #3229
PiperOrigin-RevId: 362419092
- Implement Stringer for it so that we can improve error messages.
- Use TCPFlags through the code base. There used to be a mixed usage of byte,
uint8 and int as TCP flags.
PiperOrigin-RevId: 361940150
IPv4 would violate the lock ordering of protocol > endpoint when closing
network endpoints by calling `ipv4.protocol.forgetEndpoint` while
holding the network endpoint lock.
PiperOrigin-RevId: 361232817
The integrator may be interested in who owns a duplicate address so
pass this information (if available) along.
Fixes#5605.
PiperOrigin-RevId: 361213556
Fabricio Voznika
Ghanan Gowripalan
Zeling Feng
Mithun Iyer
Kevin Krakauer
Etienne Perot
Ayush Ranjan
gVisor bot
Rahat Mahmood
Chong Cai
Bhasker Hariharan
Arthur Sfez