linux

iv/linux

History

Ido Schimmel ed13923f98 ipv6: Add a sysctl to control multipath hash fields

A subsequent patch will add a new multipath hash policy where the packet
fields used for multipath hash calculation are determined by user space.
This patch adds a sysctl that allows user space to set these fields.

The packet fields are represented using a bitmask and are common between
IPv4 and IPv6 to allow user space to use the same numbering across both
protocols. For example, to hash based on standard 5-tuple:

 # sysctl -w net.ipv6.fib_multipath_hash_fields=0x0037
 net.ipv6.fib_multipath_hash_fields = 0x0037

To avoid introducing holes in 'struct netns_sysctl_ipv6', move the
'bindv6only' field after the multipath hash fields.

The kernel rejects unknown fields, for example:

 # sysctl -w net.ipv6.fib_multipath_hash_fields=0x1000
 sysctl: setting key "net.ipv6.fib_multipath_hash_fields": Invalid argument

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2021-05-18 13:27:32 -07:00

bpf.h

bpf, netns: Keep a list of attached bpf_link's

2020-06-30 10:45:08 -07:00

can.h

can: remove obsolete version strings

2020-10-12 10:06:39 +02:00

conntrack.h

netfilter: conntrack: convert sysctls to u8

2021-04-13 13:10:39 +02:00

core.h

sock: Hide unused variable when !CONFIG_PROC_FS.