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: Richard Alpe <richard.alpe@ericsson.com> Acked-by: Jon Maloy <jon.maloy@ericsson.com> Reviewed-by: Erik Hugne <erik.hugne@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -310,9 +310,14 @@ err:
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#if IS_ENABLED(CONFIG_IPV6)
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} else if ((sa_local.ss_family & sa_remote.ss_family) == AF_INET6) {
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int atype;
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struct sockaddr_in6 *ip6;
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ip6 = (struct sockaddr_in6 *)&sa_local;
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atype = ipv6_addr_type(&ip6->sin6_addr);
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if (__ipv6_addr_needs_scope_id(atype) && !ip6->sin6_scope_id)
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return -EINVAL;
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local->proto = htons(ETH_P_IPV6);
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local->udp_port = ip6->sin6_port;
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memcpy(&local->ipv6, &ip6->sin6_addr, sizeof(struct in6_addr));
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