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[SK_BUFF]: Introduce icmp_hdr(), remove skb->h.icmph 

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2007-03-13 14:43:18 -03:00 committed by David S. Miller
parent 4bedb45203
commit 88c7664f13
15 changed files with 54 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
include/linux/icmp.h
View File

@ -82,6 +82,15 @@ struct icmphdr {
} un;
};
#ifdef __KERNEL__
#include <linux/skbuff.h>
static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb)
{
return (struct icmphdr *)skb->h.raw;
}
#endif
/*
* constants for (set|get)sockopt
*/

1
include/linux/skbuff.h
View File

@ -238,7 +238,6 @@ struct sk_buff {
union {
struct tcphdr *th;
struct icmphdr *icmph;
struct iphdr *ipiph;
struct ipv6hdr *ipv6h;
unsigned char *raw;

4
net/dccp/ipv4.c
View File

@ -207,8 +207,8 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
(iph->ihl << 2));
struct dccp_sock *dp;
struct inet_sock *inet;
const int type = skb->h.icmph->type;
const int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct sock *sk;
__u64 seq;
int err;

4
net/ipv4/ah4.c
View File

@ -198,8 +198,8 @@ static void ah4_err(struct sk_buff *skb, u32 info)
struct ip_auth_hdr *ah = (struct ip_auth_hdr*)(skb->data+(iph->ihl<<2));
struct xfrm_state *x;
if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
skb->h.icmph->code != ICMP_FRAG_NEEDED)
if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
return;
x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, ah->spi, IPPROTO_AH, AF_INET);

4
net/ipv4/esp4.c
View File

@ -304,8 +304,8 @@ static void esp4_err(struct sk_buff *skb, u32 info)
struct ip_esp_hdr *esph = (struct ip_esp_hdr*)(skb->data+(iph->ihl<<2));
struct xfrm_state *x;
if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
skb->h.icmph->code != ICMP_FRAG_NEEDED)
if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
return;
x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, esph->spi, IPPROTO_ESP, AF_INET);

14
net/ipv4/icmp.c
View File

@ -355,7 +355,7 @@ static void icmp_push_reply(struct icmp_bxm *icmp_param,
ipc, rt, MSG_DONTWAIT) < 0)
ip_flush_pending_frames(icmp_socket->sk);
else if ((skb = skb_peek(&icmp_socket->sk->sk_write_queue)) != NULL) {
struct icmphdr *icmph = skb->h.icmph;
struct icmphdr *icmph = icmp_hdr(skb);
__wsum csum = 0;
struct sk_buff *skb1;
@ -613,7 +613,7 @@ static void icmp_unreach(struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(struct iphdr)))
goto out_err;
icmph = skb->h.icmph;
icmph = icmp_hdr(skb);
iph = (struct iphdr *)skb->data;
if (iph->ihl < 5) /* Mangled header, drop. */
@ -743,7 +743,7 @@ static void icmp_redirect(struct sk_buff *skb)
iph = (struct iphdr *)skb->data;
switch (skb->h.icmph->code & 7) {
switch (icmp_hdr(skb)->code & 7) {
case ICMP_REDIR_NET:
case ICMP_REDIR_NETTOS:
/*
@ -752,7 +752,7 @@ static void icmp_redirect(struct sk_buff *skb)
case ICMP_REDIR_HOST:
case ICMP_REDIR_HOSTTOS:
ip_rt_redirect(ip_hdr(skb)->saddr, iph->daddr,
skb->h.icmph->un.gateway,
icmp_hdr(skb)->un.gateway,
iph->saddr, skb->dev);
break;
}
@ -780,7 +780,7 @@ static void icmp_echo(struct sk_buff *skb)
if (!sysctl_icmp_echo_ignore_all) {
struct icmp_bxm icmp_param;
icmp_param.data.icmph = *skb->h.icmph;
icmp_param.data.icmph = *icmp_hdr(skb);
icmp_param.data.icmph.type = ICMP_ECHOREPLY;
icmp_param.skb = skb;
icmp_param.offset = 0;
@ -816,7 +816,7 @@ static void icmp_timestamp(struct sk_buff *skb)
icmp_param.data.times[2] = icmp_param.data.times[1];
if (skb_copy_bits(skb, 0, &icmp_param.data.times[0], 4))
BUG();
icmp_param.data.icmph = *skb->h.icmph;
icmp_param.data.icmph = *icmp_hdr(skb);
icmp_param.data.icmph.type = ICMP_TIMESTAMPREPLY;
icmp_param.data.icmph.code = 0;
icmp_param.skb = skb;
@ -943,7 +943,7 @@ int icmp_rcv(struct sk_buff *skb)
if (!pskb_pull(skb, sizeof(struct icmphdr)))
goto error;
icmph = skb->h.icmph;
icmph = icmp_hdr(skb);
/*
* 18 is the highest 'known' ICMP type. Anything else is a mystery

12
net/ipv4/ip_gre.c
View File

@ -320,8 +320,8 @@ static void ipgre_err(struct sk_buff *skb, u32 info)
struct iphdr *iph = (struct iphdr*)skb->data;
__be16 *p = (__be16*)(skb->data+(iph->ihl<<2));
int grehlen = (iph->ihl<<2) + 4;
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
__be16 flags;
@ -388,8 +388,8 @@ out:
struct iphdr *iph = (struct iphdr*)dp;
struct iphdr *eiph;
__be16 *p = (__be16*)(dp+(iph->ihl<<2));
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
int rel_type = 0;
int rel_code = 0;
__be32 rel_info = 0;
@ -422,7 +422,7 @@ out:
default:
return;
case ICMP_PARAMETERPROB:
n = ntohl(skb->h.icmph->un.gateway) >> 24;
n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
if (n < (iph->ihl<<2))
return;
@ -442,7 +442,7 @@ out:
return;
case ICMP_FRAG_NEEDED:
/* And it is the only really necessary thing :-) */
n = ntohs(skb->h.icmph->un.frag.mtu);
n = ntohs(icmp_hdr(skb)->un.frag.mtu);
if (n < grehlen+68)
return;
n -= grehlen;

6
net/ipv4/ip_sockglue.c
View File

@ -269,12 +269,12 @@ void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err,
serr = SKB_EXT_ERR(skb);
serr->ee.ee_errno = err;
serr->ee.ee_origin = SO_EE_ORIGIN_ICMP;
serr->ee.ee_type = skb->h.icmph->type;
serr->ee.ee_code = skb->h.icmph->code;
serr->ee.ee_type = icmp_hdr(skb)->type;
serr->ee.ee_code = icmp_hdr(skb)->code;
serr->ee.ee_pad = 0;
serr->ee.ee_info = info;
serr->ee.ee_data = 0;
serr->addr_offset = (u8 *)&(((struct iphdr *)(skb->h.icmph + 1))->daddr) -
serr->addr_offset = (u8 *)&(((struct iphdr *)(icmp_hdr(skb) + 1))->daddr) -
skb_network_header(skb);
serr->port = port;

4
net/ipv4/ipcomp.c
View File

@ -174,8 +174,8 @@ static void ipcomp4_err(struct sk_buff *skb, u32 info)
struct ip_comp_hdr *ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2));
struct xfrm_state *x;
if (skb->h.icmph->type != ICMP_DEST_UNREACH ||
skb->h.icmph->code != ICMP_FRAG_NEEDED)
if (icmp_hdr(skb)->type != ICMP_DEST_UNREACH ||
icmp_hdr(skb)->code != ICMP_FRAG_NEEDED)
return;
spi = htonl(ntohs(ipch->cpi));

12
net/ipv4/ipip.c
View File

@ -280,8 +280,8 @@ static int ipip_err(struct sk_buff *skb, u32 info)
ICMP in the real Internet is absolutely infeasible.
*/
struct iphdr *iph = (struct iphdr*)skb->data;
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
int err;
@ -336,8 +336,8 @@ out:
struct iphdr *iph = (struct iphdr*)dp;
int hlen = iph->ihl<<2;
struct iphdr *eiph;
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
int rel_type = 0;
int rel_code = 0;
__be32 rel_info = 0;
@ -354,7 +354,7 @@ out:
default:
return 0;
case ICMP_PARAMETERPROB:
n = ntohl(skb->h.icmph->un.gateway) >> 24;
n = ntohl(icmp_hdr(skb)->un.gateway) >> 24;
if (n < hlen)
return 0;
@ -373,7 +373,7 @@ out:
return 0;
case ICMP_FRAG_NEEDED:
/* And it is the only really necessary thing :-) */
n = ntohs(skb->h.icmph->un.frag.mtu);
n = ntohs(icmp_hdr(skb)->un.frag.mtu);
if (n < hlen+68)
return 0;
n -= hlen;

6
net/ipv4/raw.c
View File

@ -132,7 +132,7 @@ static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
return 1;
type = skb->h.icmph->type;
type = icmp_hdr(skb)->type;
if (type < 32) {
__u32 data = raw_sk(sk)->filter.data;
@ -184,8 +184,8 @@ out:
void raw_err (struct sock *sk, struct sk_buff *skb, u32 info)
{
struct inet_sock *inet = inet_sk(sk);
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
int err = 0;
int harderr = 0;

4
net/ipv4/tcp_ipv4.c
View File

@ -354,8 +354,8 @@ void tcp_v4_err(struct sk_buff *skb, u32 info)
struct tcphdr *th = (struct tcphdr *)(skb->data + (iph->ihl << 2));
struct tcp_sock *tp;
struct inet_sock *inet;
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct sock *sk;
__u32 seq;
int err;

4
net/ipv4/udp.c
View File

@ -330,8 +330,8 @@ void __udp4_lib_err(struct sk_buff *skb, u32 info, struct hlist_head udptable[])
struct inet_sock *inet;
struct iphdr *iph = (struct iphdr*)skb->data;
struct udphdr *uh = (struct udphdr*)(skb->data+(iph->ihl<<2));
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct sock *sk;
int harderr;
int err;

12
net/ipv6/sit.c
View File

@ -224,8 +224,8 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
ICMP in the real Internet is absolutely infeasible.
*/
struct iphdr *iph = (struct iphdr*)skb->data;
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct ip_tunnel *t;
int err;
@ -280,8 +280,8 @@ out:
struct iphdr *iph = (struct iphdr*)dp;
int hlen = iph->ihl<<2;
struct ipv6hdr *iph6;
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
int rel_type = 0;
int rel_code = 0;
int rel_info = 0;
@ -296,14 +296,14 @@ out:
default:
return;
case ICMP_PARAMETERPROB:
if (skb->h.icmph->un.gateway < hlen)
if (icmp_hdr(skb)->un.gateway < hlen)
return;
/* So... This guy found something strange INSIDE encapsulated
packet. Well, he is fool, but what can we do ?
*/
rel_type = ICMPV6_PARAMPROB;
rel_info = skb->h.icmph->un.gateway - hlen;
rel_info = icmp_hdr(skb)->un.gateway - hlen;
break;
case ICMP_DEST_UNREACH:

4
net/sctp/input.c
View File

@ -507,8 +507,8 @@ void sctp_v4_err(struct sk_buff *skb, __u32 info)
{
struct iphdr *iph = (struct iphdr *)skb->data;
struct sctphdr *sh = (struct sctphdr *)(skb->data + (iph->ihl <<2));
int type = skb->h.icmph->type;
int code = skb->h.icmph->code;
const int type = icmp_hdr(skb)->type;
const int code = icmp_hdr(skb)->code;
struct sock *sk;
struct sctp_association *asoc = NULL;
struct sctp_transport *transport;