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Commit 34f65dbb authored by Richard Alpe's avatar Richard Alpe Committed by David S. Miller
Browse files

tipc: make sure required IPv6 addresses are scoped 



Make sure the user has provided a scope for multicast and link local
addresses used locally by a UDP bearer.

Signed-off-by: default avatarRichard Alpe <richard.alpe@ericsson.com>
Acked-by: default avatarJon Maloy <jon.maloy@ericsson.com>
Reviewed-by: default avatarErik Hugne <erik.hugne@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ddb37125

net/tipc/udp_media.c

+5 −0
Original line number Diff line number Diff line
@@ -310,9 +310,14 @@ static int parse_options(struct nlattr *attrs[], struct udp_bearer *ub, 


#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));