SCTP: Fix SCTP_SET_PEER_PRIMARY_ADDR to accpet v4mapped address (40a01039) · Commits · 戴 / test

SCTP_SET_PEER_PRIMARY_ADDR does not accpet v4mapped address, using v4mapped address in SCTP_SET_PEER_PRIMARY_ADDR socket option will get -EADDRNOTAVAIL error if v4map is enabled. This patch try to fix it by mapping v4mapped address to v4 address if allowed. Signed-off-by:

Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by:

Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by:

David S. Miller <davem@davemloft.net>

net/sctp/socket.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -2932,6 +2932,7 @@ static int sctp_setsockopt_peer_primary_addr(struct sock sk, char __user optva
		struct sctp_association *asoc = NULL;
		struct sctp_setpeerprim prim;
		struct sctp_chunk *chunk;
		struct sctp_af *af;
		int err;

		sp = sctp_sk(sk);
		@@ -2959,6 +2960,13 @@ static int sctp_setsockopt_peer_primary_addr(struct sock sk, char __user optva
		if (!sctp_state(asoc, ESTABLISHED))
		return -ENOTCONN;

		af = sctp_get_af_specific(prim.sspp_addr.ss_family);
		if (!af)
		return -EINVAL;

		if (!af->addr_valid((union sctp_addr *)&prim.sspp_addr, sp, NULL))
		return -EADDRNOTAVAIL;

		if (!sctp_assoc_lookup_laddr(asoc, (union sctp_addr *)&prim.sspp_addr))
		return -EADDRNOTAVAIL;

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