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| author |   Xin Long <lucien.xin@gmail.com> | 2020-08-17 14:30:49 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-08-18 15:58:53 -0700 |
| commit | 4ef1a7cb08e94da1f2f2a34ee6cefe7ae142dc98 (patch) | |
| tree | 730748995d08ea86e62673462e06c2beff9ad6fa /include | |
| parent | bonding: fix active-backup failover for current ARP slave (diff) | |
| download | wireguard-linux-4ef1a7cb08e94da1f2f2a34ee6cefe7ae142dc98.tar.xz wireguard-linux-4ef1a7cb08e94da1f2f2a34ee6cefe7ae142dc98.zip | |
ipv6: some fixes for ipv6_dev_find()
This patch is to do 3 things for ipv6_dev_find():
As David A. noticed,
- rt6_lookup() is not really needed. Different from __ip_dev_find(),
ipv6_dev_find() doesn't have a compatibility problem, so remove it.
As Hideaki suggested,
- "valid" (non-tentative) check for the address is also needed.
ipv6_chk_addr() calls ipv6_chk_addr_and_flags(), which will
traverse the address hash list, but it's heavy to be called
inside ipv6_dev_find(). This patch is to reuse the code of
ipv6_chk_addr_and_flags() for ipv6_dev_find().
- dev parameter is passed into ipv6_dev_find(), as link-local
addresses from user space has sin6_scope_id set and the dev
lookup needs it.
Fixes: 81f6cb31222d ("ipv6: add ipv6_dev_find()")
Suggested-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/addrconf.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index ba3f6c15ad2b..18f783dcd55f 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -97,7 +97,8 @@ bool ipv6_chk_custom_prefix(const struct in6_addr *addr, int ipv6_chk_prefix(const struct in6_addr *addr, struct net_device *dev); -struct net_device *ipv6_dev_find(struct net *net, const struct in6_addr *addr); +struct net_device *ipv6_dev_find(struct net *net, const struct in6_addr *addr, + struct net_device *dev); struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *addr, |