From 118b2c9532c853ebdf15c21128d30a343b89ea45 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 20 Mar 2006 22:31:09 -0800 Subject: [DCCP]: Use sk->sk_prot->max_header consistently for non-data packets Using this also provides opportunities for introducing inet_csk_alloc_skb that would call alloc_skb, account it to the sock and skb_reserve(max_header), but I'll leave this for later, for now using sk_prot->max_header consistently is enough. Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: David S. Miller --- net/dccp/ipv6.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) (limited to 'net/dccp/ipv6.c') diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index f28f38fd013..0f328c753c5 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -514,7 +514,7 @@ static void dccp_v6_send_check(struct sock *sk, int len, struct sk_buff *skb) static void dccp_v6_ctl_send_reset(struct sk_buff *rxskb) { struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh; - const int dccp_hdr_reset_len = sizeof(struct dccp_hdr) + + const u32 dccp_hdr_reset_len = sizeof(struct dccp_hdr) + sizeof(struct dccp_hdr_ext) + sizeof(struct dccp_hdr_reset); struct sk_buff *skb; @@ -527,18 +527,12 @@ static void dccp_v6_ctl_send_reset(struct sk_buff *rxskb) if (!ipv6_unicast_destination(rxskb)) return; - /* - * We need to grab some memory, and put together an RST, - * and then put it into the queue to be sent. - */ - - skb = alloc_skb(MAX_HEADER + sizeof(struct ipv6hdr) + - dccp_hdr_reset_len, GFP_ATOMIC); + skb = alloc_skb(dccp_v6_ctl_socket->sk->sk_prot->max_header, + GFP_ATOMIC); if (skb == NULL) return; - skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr) + - dccp_hdr_reset_len); + skb_reserve(skb, dccp_v6_ctl_socket->sk->sk_prot->max_header); skb->h.raw = skb_push(skb, dccp_hdr_reset_len); dh = dccp_hdr(skb); @@ -590,18 +584,17 @@ static void dccp_v6_ctl_send_ack(struct sk_buff *rxskb) { struct flowi fl; struct dccp_hdr *rxdh = dccp_hdr(rxskb), *dh; - const int dccp_hdr_ack_len = sizeof(struct dccp_hdr) + + const u32 dccp_hdr_ack_len = sizeof(struct dccp_hdr) + sizeof(struct dccp_hdr_ext) + sizeof(struct dccp_hdr_ack_bits); struct sk_buff *skb; - skb = alloc_skb(MAX_HEADER + sizeof(struct ipv6hdr) + - dccp_hdr_ack_len, GFP_ATOMIC); + skb = alloc_skb(dccp_v6_ctl_socket->sk->sk_prot->max_header, + GFP_ATOMIC); if (skb == NULL) return; - skb_reserve(skb, MAX_HEADER + sizeof(struct ipv6hdr) + - dccp_hdr_ack_len); + skb_reserve(skb, dccp_v6_ctl_socket->sk->sk_prot->max_header); skb->h.raw = skb_push(skb, dccp_hdr_ack_len); dh = dccp_hdr(skb); -- cgit v1.2.3