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net: sctp: remove unused multiple cookie keys

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Vlad says: The whole multiple cookie keys code is completely unused
and has been all this time. Noone uses anything other then the
secret_key[0] since there is no changeover support anywhere.

Thus, for now clean up its left-over fragments.

Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2013-02-12 05:15:33 +00:00
committed by David S. Miller
parent 0790bbb68f
commit 570617e79c
4 changed files with 11 additions and 36 deletions
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include/net/sctp/constants.h
+1 -1
View File
@@ -303,7 +303,7 @@ enum { SCTP_MAX_GABS = 16 };
* to which we will raise the P-MTU.
*/
#define SCTP_DEFAULT_MINSEGMENT 512 /* MTU size ... if no mtu disc */
#define SCTP_HOW_MANY_SECRETS 2 /* How many secrets I keep */
#define SCTP_SECRET_SIZE 32 /* Number of octets in a 256 bits. */
#define SCTP_SIGNATURE_SIZE 20 /* size of a SLA-1 signature */
include/net/sctp/structs.h
+1 -4
View File
@@ -1236,10 +1236,7 @@ struct sctp_endpoint {
* Discussion in [RFC1750] can be helpful in
* selection of the key.
*/
__u8 secret_key[SCTP_HOW_MANY_SECRETS][SCTP_SECRET_SIZE];
int current_key;
int last_key;
int key_changed_at;
__u8 secret_key[SCTP_SECRET_SIZE];
/* digest: This is a digest of the sctp cookie. This field is
* only used on the receive path when we try to validate