[NET]: Fix IP_ADD/DROP_MEMBERSHIP to handle only connectionless
Fix IP[V6]_ADD_MEMBERSHIP and IP[V6]_DROP_MEMBERSHIP to return -EPROTO for connection oriented sockets. Signed-off-by: Flavio Leitner <fleitner@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -625,6 +625,10 @@ static int do_ip_setsockopt(struct sock *sk, int level,
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{
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struct ip_mreqn mreq;
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err = -EPROTO;
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if (inet_sk(sk)->is_icsk)
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break;
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if (optlen < sizeof(struct ip_mreq))
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goto e_inval;
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err = -EFAULT;
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@ -554,6 +554,10 @@ done:
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{
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struct ipv6_mreq mreq;
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retv = -EPROTO;
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if (inet_sk(sk)->is_icsk)
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break;
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retv = -EFAULT;
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if (copy_from_user(&mreq, optval, sizeof(struct ipv6_mreq)))
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break;
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