netdev - [PATCH v2 0/4] vsock: cancel connect packets when failing to connect

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1481123652-80603-1-git-send-email-bergwolf@gmail.com>
Date:   Wed,  7 Dec 2016 23:14:08 +0800
From:   Peng Tao <bergwolf@...il.com>
To:     Stefan Hajnoczi <stefanha@...hat.com>
Cc:     kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, Peng Tao <bergwolf@...il.com>
Subject: [PATCH v2 0/4] vsock: cancel connect packets when failing to connect

Currently, if a connect call fails on a signal or timeout (e.g., guest is still
in the process of starting up), we'll just return to caller and leave the connect
packet queued and they are sent even though the connection is considered a failure,
which can confuse applications with unwanted false connect attempt.

The patchset enables vsock (both host and guest) to cancel queued packets when
a connect attempt is considered to fail.

v2 changelog:
  - fix queued_replies counting and resume tx/rx when necessary

Peng Tao (4):
  vsock: track pkt owner vsock
  vhost-vsock: add pkt cancel capability
  vsock: add pkt cancel capability
  vsock: cancel packets when failing to connect

 drivers/vhost/vsock.c                   | 41 ++++++++++++++++++++++++++++++++
 include/linux/virtio_vsock.h            | 12 ++++++++++
 net/vmw_vsock/af_vsock.c                |  7 ++++++
 net/vmw_vsock/virtio_transport.c        | 42 +++++++++++++++++++++++++++++++++
 net/vmw_vsock/virtio_transport_common.c | 14 +++++------
 5 files changed, 109 insertions(+), 7 deletions(-)

-- 
2.7.4