diff options
| author | Joel Scherpelz <jscherpelz@google.com> | 2017-03-22 18:19:04 +0900 |
|---|---|---|
| committer | Joel Scherpelz <jscherpelz@google.com> | 2017-03-23 05:03:51 +0000 |
| commit | e953f89b8563efe0b92f70033d237874c43d4a3d (patch) | |
| tree | 33033f62f1fc0748641712912b267d1c24576e73 /include/uapi/linux/sysctl.h | |
| parent | 22ff4ae765ff421ce0ba8a58f33b5df670224b72 (diff) | |
net: ipv6: Add sysctl for minimum prefix len acceptable in RIOs.
This commit adds a new sysctl accept_ra_rt_info_min_plen that
defines the minimum acceptable prefix length of Route Information
Options. The new sysctl is intended to be used together with
accept_ra_rt_info_max_plen to configure a range of acceptable
prefix lengths. It is useful to prevent misconfigurations from
unintentionally blackholing too much of the IPv6 address space
(e.g., home routers announcing RIOs for fc00::/7, which is
incorrect).
[backport of net-next bbea124bc99df968011e76eba105fe964a4eceab]
Bug: 33333670
Test: net_test passes
Signed-off-by: Joel Scherpelz <jscherpelz@google.com>
Acked-by: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/sysctl.h')
| -rw-r--r-- | include/uapi/linux/sysctl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h index 0956373b56db..d18980e74534 100644 --- a/include/uapi/linux/sysctl.h +++ b/include/uapi/linux/sysctl.h @@ -570,6 +570,7 @@ enum { NET_IPV6_PROXY_NDP=23, NET_IPV6_ACCEPT_SOURCE_ROUTE=25, NET_IPV6_ACCEPT_RA_FROM_LOCAL=26, + NET_IPV6_ACCEPT_RA_RT_INFO_MIN_PLEN=27, __NET_IPV6_MAX }; |