Age | Commit message (Collapse) | Author |
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PiperOrigin-RevId: 335532690
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PiperOrigin-RevId: 335516972
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Updates #1487
PiperOrigin-RevId: 335516732
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PiperOrigin-RevId: 335516625
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PiperOrigin-RevId: 335492800
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We can get the network endpoint directly from the NIC.
This is a preparatory CL for when a Route needs to hold a dedicated NIC
as its output interface. This is because when forwarding is enabled,
packets may be sent from a NIC different from the NIC a route's local
address is associated with.
PiperOrigin-RevId: 335484500
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PiperOrigin-RevId: 335429072
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- When the KCOV_ENABLE_TRACE ioctl is called with the trace kind KCOV_TRACE_PC,
the kcov mode should be set to KCOV_*MODE*_TRACE_PC.
- When the owning task of kcov exits, the memory mapping should not be cleared
so it can be used by other tasks.
- Add more tests (also tested on native Linux kcov).
PiperOrigin-RevId: 335202585
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PiperOrigin-RevId: 335122704
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Signed-off-by: Andrei Vagin <avagin@gmail.com>
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Before we thought that interrupts are always disabled in the kernel
space, but here is a case when goruntime switches on a goroutine which
has been saved in the host mode. On restore, the popf instruction is
used to restore flags and this means that all flags what the goroutine
has in the host mode will be restored in the kernel mode. And in the
host mode, interrupts are always enabled.
The long story short, we can't use the IF flag for determine whether a
tasks is running in user or kernel mode.
This patch reworks the code so that in userspace, the first bit of the
IOPL flag will be always set. This doesn't give any new privilidges for
a task because CPL in userspace is always 3. But then we can use this
flag to distinguish user and kernel modes. The IOPL flag is never set in
the kernel and host modes.
Reported-by: syzbot+5036b325a8eb15c030cf@syzkaller.appspotmail.com
Reported-by: syzbot+034d580e89ad67b8dc75@syzkaller.appspotmail.com
Signed-off-by: Andrei Vagin <avagin@gmail.com>
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PiperOrigin-RevId: 335086850
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PiperOrigin-RevId: 335077195
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PiperOrigin-RevId: 335070320
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We are currently tracking the minimum RTT for RACK as smoothed RTT. As per RFC
minimum RTT can be a global minimum of all RTTs or filtered value of recent
RTT measurements. In this cl minimum RTT is updated to global minimum of all
RTTs for the connection.
PiperOrigin-RevId: 335061518
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PiperOrigin-RevId: 335051794
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When a child's root hash or its Merkle path is modified in its parent's
Merkle tree file, opening the file should fail, provided the directory
is verity enabled. The test for this behavior is added.
PiperOrigin-RevId: 334963690
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PiperOrigin-RevId: 334721453
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PiperOrigin-RevId: 334716351
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Adds support for the IPv6-compatible redirect target. Redirection is a limited
form of DNAT, where the destination is always the localhost.
Updates #3549.
PiperOrigin-RevId: 334698344
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Before this change, OutgoingPacketErrors was incremented in the
stack.Route methods. This was going to be a problem once
IPv4/IPv6 WritePackets support fragmentation because Route.WritePackets
might now know how many packets are left after an error occurs.
Test:
- pkg/tcpip/network/ipv4:ipv4_test
- pkg/tcpip/network/ipv6:ipv6_test
PiperOrigin-RevId: 334687983
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PiperOrigin-RevId: 334682753
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PiperOrigin-RevId: 334678513
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PiperOrigin-RevId: 334674481
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With cgroups configured NumCPU is correct, however GOMAXPROCS is still derived from total host core count and ignores cgroup restrictions. This can lead to different and undesired behavior across different hosts.
For example, the total number of threads in the guest process will be larger on machines with more cores.
This change configures the go runtime for the sandbox to only use the number of threads consistent with its restrictions.
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Add code in IPv6 to send ICMP packets while processing extension headers.
Add some accounting in processing IPV6 Extension headers which
allows us to report meaningful information back in ICMP parameter
problem packets.
IPv4 also needs to send a message when an unsupported protocol
is requested.
Add some tests to generate both ipv4 and ipv6 packets with
various errors and check the responses.
Add some new checkers and cleanup some inconsistencies in
the messages in that file.
Add new error types for the ICMPv4/6 generators.
Fix a bug in the ICMPv4 generator that stopped it from generating
"Unknown protocol" messages.
Updates #2211
PiperOrigin-RevId: 334661716
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PiperOrigin-RevId: 334656292
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