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generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-08-21 03:45:43 +0000
tions'>+39 2017-02-09openvswitch: Add force commit.Jarno Rajahalme1-2/+24 2017-02-09openvswitch: Add original direction conntrack tuple to sw_flow_key.Jarno Rajahalme7-46/+227 2017-02-09openvswitch: Inherit master's labels.Jarno Rajahalme1-14/+31 2017-02-09openvswitch: Refactor labels initialization.Jarno Rajahalme1-42/+62 2017-02-09openvswitch: Simplify labels length logic.Jarno Rajahalme1-11/+9 2017-02-09openvswitch: Unionize ovs_key_ct_label with a u32 array.Jarno Rajahalme1-7/+8 2017-02-09openvswitch: Do not trigger events for unconfirmed connections.Jarno Rajahalme1-6/+22 2017-02-09openvswitch: Use inverted tuple in ovs_ct_find_existing() if NATted.Jarno Rajahalme1-2/+22 2017-02-09openvswitch: Fix comments for skb->_nfctJarno Rajahalme1-7/+7 2017-02-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller1-7/+5 2017-02-02netfilter: add and use nf_ct_set helperFlorian Westphal1-4/+2 2017-02-02skbuff: add and use skb_nfct helperFlorian Westphal1-3/+3 sing prefix/length only 1 notification is generated: $ ip -6 ro del vrf red 2001:db8:200::/120 $ ip mon route Deleted 2001:db8:200::/120 table red metric 1024 nexthop via 2001:db8:1::16 dev eth1 weight 1 nexthop via 2001:db8:2::16 dev eth2 weight 1 - if a delete request contains nexthops one notification is generated per nexthop deleted. This is unavoidable since IPv6 alllows a single nexthop to be deleted within a multipath route 4. Route Appends - IPv6 allows nexthops to be appended to an existing route. In this case one notification is sent for the new route with the append flag set. $ ip -6 ro append vrf red 2001:db8:200::/120 nexthop via 2001:db8:2::20 nexthop via 2001:db8:1::20 $ ip mon route Append 2001:db8:200::/120 table red metric 1024 nexthop via 2001:db8:1::2 dev eth1 weight 1 nexthop via 2001:db8:2::2 dev eth2 weight 1 nexthop via 2001:db8:2::20 dev eth2 weight 1 nexthop via 2001:db8:1::20 dev eth1 weight 1 - on failure of an append, a notification is sent with the route containing all of the nexthops successfully added, and it is followed by delete notifications as the hops are removed returning the route to its prior state. This is consistent with how it works today except the successful additions are coalesced into 1 notification. Addresses some of the inconsistencies also noted by Roopa at netdev0.1: https://www.netdev01.org/docs/prabhu-linux_ipv4_ipv6_inconsistencies_talk_slides.pdf v4 - changed series to do encoding in 1 patch and updating notificatons in separate patches to make it easier to review and understand - 1 notification for delete when using prefix/length; 1 notification for append - handle delete of a single nexthop without RTA_MULTIPATH in delete request - upated commit messages and cover letter v3 - removed the need for a user API to opt-in to change. Requiring an API just shifts the difference from same API with different behavior to different API to achieve equivalent behavior - route notifications changed to use RTA_MULTIPATH for add and replace - upated commit messages and cover letter v2 - fixed locking in patch 1 as noted by DaveM - changed user API for patch 2 to require an rtmsg with RTM_F_ALL_NEXTHOPS set in rtm_flags - revamped explanation of patch 2 and cover letter ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/ip6_fib.c19
-rw-r--r--net/ipv6/route.c228
2 files changed, 223 insertions, 24 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c