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Diffstat (limited to 'net/sched/act_csum.c')
-rw-r--r--net/sched/act_csum.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index a0edd80a44db..e978ccd4402c 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -30,6 +30,7 @@
#include <net/tcp.h>
#include <net/udp.h>
#include <net/ip6_checksum.h>
+#include <net/sctp/checksum.h>
#include <net/act_api.h>
@@ -322,6 +323,25 @@ ignore_obscure_skb:
return 1;
}
+static int tcf_csum_sctp(struct sk_buff *skb, unsigned int ihl,
+ unsigned int ipl)
+{
+ struct sctphdr *sctph;
+
+ if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type & SKB_GSO_SCTP)
+ return 1;
+
+ sctph = tcf_csum_skb_nextlayer(skb, ihl, ipl, sizeof(*sctph));
+ if (!sctph)
+ return 0;
+
+ sctph->checksum = sctp_compute_cksum(skb,
+ skb_network_offset(skb) + ihl);
+ skb->ip_summed = CHECKSUM_NONE;
+
+ return 1;
+}
+
static int tcf_csum_ipv4(struct sk_buff *skb, u32 update_flags)
{
const struct iphdr *iph;
@@ -365,6 +385,11 @@ static int tcf_csum_ipv4(struct sk_buff *skb, u32 update_flags)
ntohs(iph->tot_len), 1))
goto fail;
break;
+ case IPPROTO_SCTP:
+ if ((update_flags & TCA_CSUM_UPDATE_FLAG_SCTP) &&
+ !tcf_csum_sctp(skb, iph->ihl * 4, ntohs(iph->tot_len)))
+ goto fail;
+ break;
}
if (update_flags & TCA_CSUM_UPDATE_FLAG_IPV4HDR) {
@@ -481,6 +506,11 @@ static int tcf_csum_ipv6(struct sk_buff *skb, u32 update_flags)
pl + sizeof(*ip6h), 1))
goto fail;
goto done;
+ case IPPROTO_SCTP:
+ if ((update_flags & TCA_CSUM_UPDATE_FLAG_SCTP) &&
+ !tcf_csum_sctp(skb, hl, pl + sizeof(*ip6h)))
+ goto fail;
+ goto done;
default:
goto ignore_skb;
}