A missing piece to the VRF puzzle is the ability to bind sockets to
devices enslaved to a VRF. This patch set adds the enslaved device
index, sdif, to IPv4 and IPv6 socket lookups. The end result for users
is the following scope options for services:
1. "global" services - sockets not bound to any device
Allows 1 service to work across all network interfaces with
connected sockets bound to the VRF the connection originates
(Requires net.ipv4.tcp_l3mdev_accept=1 for TCP and
net.ipv4.udp_l3mdev_accept=1 for UDP)
2. "VRF" local services - sockets bound to a VRF
Sockets work across all network interfaces enslaved to a VRF but
are limited to just the one VRF.
3. "device" services - sockets bound to a specific network interface
Service works only through the one specific interface.
v2
- remove sk_lookup struct and add sdif as an argument to existing
functions
Changes since RFC:
- no significant logic changes; mainly whitespace cleanups
David Ahern (7):
net: ipv4: add second dif to udp socket lookups
net: ipv4: add second dif to inet socket lookups
net: ipv4: add second dif to raw socket lookups
net: ipv4: add second dif to multicast source filter
net: ipv6: add second dif to udp socket lookups
net: ipv6: add second dif to inet6 socket lookups
net: ipv6: add second dif to raw socket lookups
include/linux/igmp.h | 3 +-
include/linux/ipv6.h | 10 +++++++
include/net/inet6_hashtables.h | 22 ++++++++------
include/net/inet_hashtables.h | 31 +++++++++++---------
include/net/ip.h | 10 +++++++
include/net/raw.h | 2 +-
include/net/rawv6.h | 2 +-
include/net/tcp.h | 20 +++++++++++++
include/net/udp.h | 4 +--
net/dccp/ipv4.c | 2 +-
net/dccp/ipv6.c | 4 +--
net/ipv4/igmp.c | 6 ++--
net/ipv4/inet_hashtables.c | 27 ++++++++++-------
net/ipv4/raw.c | 18 ++++++++----
net/ipv4/raw_diag.c | 4 +--
net/ipv4/tcp_ipv4.c | 13 +++++----
net/ipv4/udp.c | 66 ++++++++++++++++++++++++------------------
net/ipv4/udp_diag.c | 10 +++----
net/ipv6/inet6_hashtables.c | 28 +++++++++++-------
net/ipv6/raw.c | 13 +++++----
net/ipv6/tcp_ipv6.c | 13 +++++----
net/ipv6/udp.c | 47 ++++++++++++++++--------------
net/netfilter/xt_TPROXY.c | 6 ++--
23 files changed, 227 insertions(+), 134 deletions(-)
--
2.1.4
