ipv6: introduce neighbour discovery ops
This patch introduces neighbour discovery ops callback structure. The
idea is to separate the handling for 6LoWPAN into the 6lowpan module.
These callback offers 6lowpan different handling, such as 802.15.4 short
address handling or RFC6775 (Neighbor Discovery Optimization for IPv6
over 6LoWPANs).
Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 44c1cef..b6e9bdc 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2531,7 +2531,7 @@
if (pinfo->autoconf && in6_dev->cnf.autoconf) {
struct in6_addr addr;
- bool tokenized = false;
+ bool tokenized = false, dev_addr_generated = false;
if (pinfo->prefix_len == 64) {
memcpy(&addr, &pinfo->prefix, 8);
@@ -2550,6 +2550,8 @@
} else if (ipv6_generate_eui64(addr.s6_addr + 8, dev) &&
ipv6_inherit_eui64(addr.s6_addr + 8, in6_dev)) {
goto put;
+ } else {
+ dev_addr_generated = true;
}
goto ok;
}
@@ -2565,6 +2567,15 @@
prefered_lft);
if (err)
goto put;
+
+ /* Ignore error case here because previous prefix add addr was
+ * successful which will be notified.
+ */
+ ndisc_ops_prefix_rcv_add_addr(net, dev, pinfo, in6_dev, &addr,
+ addr_type, addr_flags, sllao,
+ tokenized, valid_lft,
+ prefered_lft,
+ dev_addr_generated);
}
inet6_prefix_notify(RTM_NEWPREFIX, in6_dev, pinfo);
put: