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net: sctp: convert sctp_checksum_disable module param into sctp sysctl

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Get rid of the last module parameter for SCTP and make this
configurable via sysctl for SCTP like all the rest of SCTP's
configuration knobs.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann
2013-08-06 21:18:12 +02:00
committed by David S. Miller
parent 2690048c01
commit cda5f98e36
7 changed files with 29 additions and 11 deletions
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5
net/sctp/output.c
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@@ -395,6 +395,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
int padding; /* How much padding do we need? */
__u8 has_data = 0;
struct dst_entry *dst = tp->dst;
struct net *net;
unsigned char *auth = NULL; /* pointer to auth in skb data */
__u32 cksum_buf_len = sizeof(struct sctphdr);
@@ -541,7 +542,9 @@ int sctp_packet_transmit(struct sctp_packet *packet)
* Note: Adler-32 is no longer applicable, as has been replaced
* by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
*/
if (!sctp_checksum_disable) {
net = dev_net(dst->dev);
if (!net->sctp.checksum_disable) {
if (!(dst->dev->features & NETIF_F_SCTP_CSUM)) {
__u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);