Age | Commit message (Collapse) | Author |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The abstract socket namespace no longer holds any references on sockets.
Instead, TryIncRef() is used when a socket is being retrieved in
BoundEndpoint(). Abstract sockets are now responsible for removing themselves
from the namespace they are in, when they are destroyed.
Updates #1486.
PiperOrigin-RevId: 327064173
|
|
|
|
Formerly, when a packet is constructed or parsed, all headers are set by the
client code. This almost always involved prepending to pk.Header buffer or
trimming pk.Data portion. This is known to prone to bugs, due to the complexity
and number of the invariants assumed across netstack to maintain.
In the new PacketHeader API, client will call Push()/Consume() method to
construct/parse an outgoing/incoming packet. All invariants, such as slicing
and trimming, are maintained by the API itself.
NewPacketBuffer() is introduced to create new PacketBuffer. Zero value is no
longer valid.
PacketBuffer now assumes the packet is a concatenation of following portions:
* LinkHeader
* NetworkHeader
* TransportHeader
* Data
Any of them could be empty, or zero-length.
PiperOrigin-RevId: 326507688
|
|
|
|
This is purely moving code, no changes. netfilter.go is cluttered and targets.go
is a good place for this.
#3549
PiperOrigin-RevId: 325879965
|
|
|
|
/proc/sys/net/ipv4/tcp_recovery is used to enable RACK loss
recovery in TCP.
PiperOrigin-RevId: 325157807
|
|
|
|
context is passed to DecRef() and Release() which is
needed for SO_LINGER implementation.
PiperOrigin-RevId: 324672584
|
|
|
|
Envoy (#170) uses this to get the original destination of redirected
packets.
|
|
PiperOrigin-RevId: 323715260
|
|
|
|
PiperOrigin-RevId: 322954792
|
|
|
|
PiperOrigin-RevId: 322937495
|
|
|
|
Socket option values are now required to implement marshal.Marshallable.
Co-authored-by: Rahat Mahmood <rahat@google.com>
PiperOrigin-RevId: 322831612
|
|
|
|
For iptables users, Check() is a hot path called for every packet one or more
times. Let's avoid a bunch of map lookups.
PiperOrigin-RevId: 322678699
|
|
|
|
Updates #173
PiperOrigin-RevId: 322665518
|
|
|
|
Updates #173
PiperOrigin-RevId: 321690756
|
|
|
|
gVisor incorrectly returns the wrong ARP type for SIOGIFHWADDR. This breaks
tcpdump as it tries to interpret the packets incorrectly.
Similarly, SIOCETHTOOL is used by tcpdump to query interface properties which
fails with an EINVAL since we don't implement it. For now change it to return
EOPNOTSUPP to indicate that we don't support the query rather than return
EINVAL.
NOTE: ARPHRD types for link endpoints are distinct from NIC capabilities
and NIC flags. In Linux all 3 exist eg. ARPHRD types are stored in dev->type
field while NIC capabilities are more like the device features which can be
queried using SIOCETHTOOL but not modified and NIC Flags are fields that can
be modified from user space. eg. NIC status (UP/DOWN/MULTICAST/BROADCAST) etc.
Updates #2746
PiperOrigin-RevId: 321436525
|
|
|
|
When we failed to create the new socket after adding the fd to
fdnotifier, we should remove the fd from fdnotifier, because we
are going to close the fd directly.
Fixes: #3241
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
|
|
|
|
Updates #2746
PiperOrigin-RevId: 320757963
|
|
|
|
RFC-1122 (and others) specify that UDP should not receive
datagrams that have a source address that is a multicast address.
Packets should never be received FROM a multicast address.
See also, RFC 768: 'User Datagram Protocol'
J. Postel, ISI, 28 August 1980
A UDP datagram received with an invalid IP source address
(e.g., a broadcast or multicast address) must be discarded
by UDP or by the IP layer (see rfc 1122 Section 3.2.1.3).
This CL does not address TCP or broadcast which is more complicated.
Also adds a test for both ipv6 and ipv4 UDP.
Fixes #3154
PiperOrigin-RevId: 320547674
|
|
|
|
Updates #2746
Fixes #3158
PiperOrigin-RevId: 320497190
|
|
Creating sockets by hostinet with VFS2 fails due to triggerring a
seccomp violation. In essence, we fails to pass down the field of
family.
We fix this by passing down this field, family.
Fixes #3141
Signed-off-by: Jianfeng Tan <henry.tjf@antfin.com>
|
|
|