[PATCH net-next v1 4/4] tipc: make sure required IPv6 addresses are scoped
From: Richard Alpe <hidden>
Date: 2016-03-03 13:20:43
Subsystem:
networking [general], the rest, tipc network layer · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Jon Maloy, Tung Quang Nguyen
Make sure the user has provided a scope for multicast and link local addresses used locally by a UDP bearer. Signed-off-by: Richard Alpe <redacted> Acked-by: Jon Maloy <redacted> Reviewed-by: Erik Hugne <redacted> --- net/tipc/udp_media.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/net/tipc/udp_media.c b/net/tipc/udp_media.c
index 6fe8740..fb2f7ec6 100644
--- a/net/tipc/udp_media.c
+++ b/net/tipc/udp_media.c@@ -310,9 +310,14 @@ err: #if IS_ENABLED(CONFIG_IPV6) } else if ((sa_local.ss_family & sa_remote.ss_family) == AF_INET6) { + int atype; struct sockaddr_in6 *ip6; ip6 = (struct sockaddr_in6 *)&sa_local; + atype = ipv6_addr_type(&ip6->sin6_addr); + if (__ipv6_addr_needs_scope_id(atype) && !ip6->sin6_scope_id) + return -EINVAL; + local->proto = htons(ETH_P_IPV6); local->udp_port = ip6->sin6_port; memcpy(&local->ipv6, &ip6->sin6_addr, sizeof(struct in6_addr));
--
2.1.4
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