Commit b8140811 authored by Robin Seggelmann's avatar Robin Seggelmann Committed by Dr. Stephen Henson
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DTLS/SCTP struct authchunks Bug 

PR: 2809

DTLS/SCTP requires DATA and FORWARD-TSN chunks to be protected with
SCTP-AUTH.  It is checked if this has been activated successfully for
the local and remote peer. Due to a bug, however, the
gauth_number_of_chunks field of the authchunks struct is missing on
FreeBSD, and was therefore not considered in the OpenSSL implementation.
This patch sets the corresponding pointer for the check correctly
whether or not this bug is present.
(cherry picked from commit f596e3c4)
parent b9ef52b0

crypto/bio/bss_dgram.c

+3 −3
Original line number Diff line number Diff line
@@ -955,7 +955,7 @@ BIO *BIO_new_dgram_sctp(int fd, int close_flag) 
	ret = getsockopt(fd, IPPROTO_SCTP, SCTP_LOCAL_AUTH_CHUNKS, authchunks, &sockopt_len);

	OPENSSL_assert(ret >= 0);



	for (p = (unsigned char*) authchunks + sizeof(sctp_assoc_t);

	for (p = (unsigned char*) authchunks->gauth_chunks;

	     p < (unsigned char*) authchunks + sockopt_len;

	     p += sizeof(uint8_t))

		{
@@ -1245,7 +1245,7 @@ static int dgram_sctp_read(BIO *b, char *out, int outl) 
			ii = getsockopt(b->num, IPPROTO_SCTP, SCTP_PEER_AUTH_CHUNKS, authchunks, &optlen);

			OPENSSL_assert(ii >= 0);



			for (p = (unsigned char*) authchunks + sizeof(sctp_assoc_t);

			for (p = (unsigned char*) authchunks->gauth_chunks;

				 p < (unsigned char*) authchunks + optlen;

				 p += sizeof(uint8_t))

				{