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-rw-r--r--net/sctp/input.c4
-rw-r--r--net/sctp/output.c5
-rw-r--r--net/sctp/protocol.c5
-rw-r--r--net/sctp/sysctl.c10
4 files changed, 18 insertions, 6 deletions
diff --git a/net/sctp/input.c b/net/sctp/input.c
index fa91aff02388..b9a25e18bb2b 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -140,8 +140,8 @@ int sctp_rcv(struct sk_buff *skb)
__skb_pull(skb, skb_transport_offset(skb));
if (skb->len < sizeof(struct sctphdr))
goto discard_it;
- if (!sctp_checksum_disable && !skb_csum_unnecessary(skb) &&
- sctp_rcv_checksum(net, skb) < 0)
+ if (!net->sctp.checksum_disable && !skb_csum_unnecessary(skb) &&
+ sctp_rcv_checksum(net, skb) < 0)
goto discard_it;
skb_pull(skb, sizeof(struct sctphdr));
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 5a55c55d71ad..cdb5f4914e17 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -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* Note: Adler-32 is no longer applicable, as has been replaced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);
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index b52ec2510101..a570a6365f87 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -1193,6 +1193,9 @@ static int __net_init sctp_net_init(struct net *net)
/* Whether Cookie Preservative is enabled(1) or not(0) */
net->sctp.cookie_preserve_enable = 1;
+ /* Whether SCTP checksumming is disabled(1) or not(0) */
+ net->sctp.checksum_disable = 0;
+
/* Default sctp sockets to use md5 as their hmac alg */
#if defined (CONFIG_SCTP_DEFAULT_COOKIE_HMAC_MD5)
net->sctp.sctp_hmac_alg = "md5";
@@ -1549,6 +1552,4 @@ MODULE_ALIAS("net-pf-" __stringify(PF_INET) "-proto-132");
MODULE_ALIAS("net-pf-" __stringify(PF_INET6) "-proto-132");
MODULE_AUTHOR("Linux Kernel SCTP developers <linux-sctp@vger.kernel.org>");
MODULE_DESCRIPTION("Support for the SCTP protocol (RFC2960)");
-module_param_named(no_checksums, sctp_checksum_disable, bool, 0644);
-MODULE_PARM_DESC(no_checksums, "Disable checksums computing and verification");
MODULE_LICENSE("GPL");
diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 190674702b20..754809a7183d 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -296,7 +296,15 @@ static struct ctl_table sctp_net_table[] = {
.extra1 = &max_autoclose_min,
.extra2 = &max_autoclose_max,
},
-
+ {
+ .procname = "checksum_disable",
+ .data = &init_net.sctp.checksum_disable,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
{ /* sentinel */ }
};