From: Willem de Bruijn <will...@google.com>
Support peeking at a non-zero offset for UDP sockets. Match the
existing behavior on Unix datagram sockets.
1/3 makes the sk_peek_offset functions safe to use outside locks
2/3 removes udp headers before enqueue, to simplify offset arithmetic
3/3 introduces SO_PEEK_OFFSET support, with Unix socket peek semantics.
Changes
v1->v2
- squash patches 3 and 4
Willem de Bruijn (1):
sock: convert sk_peek_offset functions to WRITE_ONCE
samanthakumar (2):
udp: remove headers from UDP packets before queueing
udp: enable MSG_PEEK at non-zero offset
include/linux/skbuff.h | 7 ++++++-
include/net/sock.h | 27 ++++++++++++++++-----------
include/net/udp.h | 9 +++++++++
net/core/datagram.c | 9 ++++++---
net/core/sock.c | 28 ++++++++++++++++++++++------
net/ipv4/af_inet.c | 1 +
net/ipv4/udp.c | 38 ++++++++++++++++++++------------------
net/ipv6/af_inet6.c | 1 +
net/ipv6/udp.c | 30 ++++++++++++++++--------------
9 files changed, 97 insertions(+), 53 deletions(-)
--
2.8.0.rc3.226.g39d4020
