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ipv6: add ip6_del_rt_reason()

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Add RTA_DEL_REASON and enum rt_del_reason to the rtnetlink uAPI, and
add ip6_del_rt_reason(), which takes the reason a route is being
deleted. It has no skip_notify argument: a caller that records a
deletion reason wants the notification that carries it.

The reason is unused for now. Subsequent patches propagate it to the
deletion path and report it on RTM_DELROUTE.

Signed-off-by: Yuyang Huang <sigefriedhyy@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260808005642.26901-2-sigefriedhyy@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Yuyang Huang
2026-08-08 09:56:33 +09:00
committed by Paolo Abeni
parent f6057f06ef
commit cc17e386f8
3 changed files with 35 additions and 0 deletions
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2
include/net/ip6_route.h
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@@ -126,6 +126,8 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd,
int ip6_route_add(struct fib6_config *cfg, gfp_t gfp_flags,
struct netlink_ext_ack *extack);
int ip6_ins_rt(struct net *net, struct fib6_info *f6i);
int ip6_del_rt_reason(struct net *net, struct fib6_info *f6i,
enum rt_del_reason del_reason);
#if IS_ENABLED(CONFIG_IPV6)
int ip6_del_rt(struct net *net, struct fib6_info *f6i, bool skip_notify);
#else