[ovs-dev] [ovn-ipv6 21/26] ovn-util: Add solicited node addresses to ipv6_netaddr.
Justin Pettit
jpettit at ovn.org
Tue Jul 12 06:56:51 UTC 2016
Every IPv6 host has a link-local solicited node multicast address for
neighbor discovery. This commit defines the solicited node address for
each IPv6 address added to a logical switch or router port.
Signed-off-by: Justin Pettit <jpettit at ovn.org>
---
ovn/lib/ovn-util.c | 4 ++++
ovn/lib/ovn-util.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/ovn/lib/ovn-util.c b/ovn/lib/ovn-util.c
index 3e0c138..7ad69ad 100644
--- a/ovn/lib/ovn-util.c
+++ b/ovn/lib/ovn-util.c
@@ -53,9 +53,12 @@ add_ipv6_netaddr(struct lport_addresses *laddrs, struct in6_addr addr,
na->mask = ipv6_create_mask(plen);
na->network = ipv6_addr_bitand(&addr, &na->mask);
na->plen = plen;
+ in6_addr_solicited_node(&na->sn_addr, &addr);
na->addr_s = xmalloc(INET6_ADDRSTRLEN);
inet_ntop(AF_INET6, &addr, na->addr_s, INET6_ADDRSTRLEN);
+ na->sn_addr_s = xmalloc(INET6_ADDRSTRLEN);
+ inet_ntop(AF_INET6, &na->sn_addr, na->sn_addr_s, INET6_ADDRSTRLEN);
na->network_s = xmalloc(INET6_ADDRSTRLEN);
inet_ntop(AF_INET6, &na->network, na->network_s, INET6_ADDRSTRLEN);
}
@@ -189,6 +192,7 @@ destroy_lport_addresses(struct lport_addresses *laddrs)
for (int i = 0; i < laddrs->n_ipv6_addrs; i++) {
free(laddrs->ipv6_addrs[i].addr_s);
+ free(laddrs->ipv6_addrs[i].sn_addr_s);
free(laddrs->ipv6_addrs[i].network_s);
}
free(laddrs->ipv6_addrs);
diff --git a/ovn/lib/ovn-util.h b/ovn/lib/ovn-util.h
index b550ece..e9f3ec2 100644
--- a/ovn/lib/ovn-util.h
+++ b/ovn/lib/ovn-util.h
@@ -34,10 +34,12 @@ struct ipv4_netaddr {
struct ipv6_netaddr {
struct in6_addr addr; /* fc00::1 */
struct in6_addr mask; /* ffff:ffff:ffff:ffff:: */
+ struct in6_addr sn_addr; /* ff02:1:ff00::1 */
struct in6_addr network; /* fc00:: */
unsigned int plen; /* CIDR Prefix: 64 */
char *addr_s; /* "fc00::1" */
+ char *sn_addr_s; /* "ff02:1:ff00::1" */
char *network_s; /* "fc00::" */
};
--
1.9.1
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