Commit 13f5bf18 authored by David S. Miller's avatar David S. Miller

ipvs: Use frag walker helper in SCTP proto support.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Acked-by: default avatarSimon Horman <horms@verge.net.au>
parent 24824a09
......@@ -61,6 +61,7 @@ sctp_snat_handler(struct sk_buff *skb,
{
sctp_sctphdr_t *sctph;
unsigned int sctphoff;
struct sk_buff *iter;
__be32 crc32;
#ifdef CONFIG_IP_VS_IPV6
......@@ -89,8 +90,8 @@ sctp_snat_handler(struct sk_buff *skb,
/* Calculate the checksum */
crc32 = sctp_start_cksum((u8 *) sctph, skb_headlen(skb) - sctphoff);
for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next)
crc32 = sctp_update_cksum((u8 *) skb->data, skb_headlen(skb),
skb_walk_frags(skb, iter)
crc32 = sctp_update_cksum((u8 *) iter->data, skb_headlen(iter),
crc32);
crc32 = sctp_end_cksum(crc32);
sctph->checksum = crc32;
......@@ -102,9 +103,9 @@ static int
sctp_dnat_handler(struct sk_buff *skb,
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
sctp_sctphdr_t *sctph;
unsigned int sctphoff;
struct sk_buff *iter;
__be32 crc32;
#ifdef CONFIG_IP_VS_IPV6
......@@ -133,8 +134,8 @@ sctp_dnat_handler(struct sk_buff *skb,
/* Calculate the checksum */
crc32 = sctp_start_cksum((u8 *) sctph, skb_headlen(skb) - sctphoff);
for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next)
crc32 = sctp_update_cksum((u8 *) skb->data, skb_headlen(skb),
skb_walk_frags(skb, iter)
crc32 = sctp_update_cksum((u8 *) iter->data, skb_headlen(iter),
crc32);
crc32 = sctp_end_cksum(crc32);
sctph->checksum = crc32;
......@@ -145,9 +146,9 @@ sctp_dnat_handler(struct sk_buff *skb,
static int
sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp)
{
struct sk_buff *list = skb_shinfo(skb)->frag_list;
unsigned int sctphoff;
struct sctphdr *sh, _sctph;
struct sk_buff *iter;
__le32 cmp;
__le32 val;
__u32 tmp;
......@@ -166,9 +167,9 @@ sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp)
cmp = sh->checksum;
tmp = sctp_start_cksum((__u8 *) sh, skb_headlen(skb));
for (; list; list = list->next)
tmp = sctp_update_cksum((__u8 *) list->data,
skb_headlen(list), tmp);
skb_walk_frags(skb, iter)
tmp = sctp_update_cksum((__u8 *) iter->data,
skb_headlen(iter), tmp);
val = sctp_end_cksum(tmp);
......
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