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[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

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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
2007-04-20 22:47:35 -07:00
committed by David S. Miller
parent e023dd6437
commit eddc9ec53b
132 changed files with 565 additions and 564 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
net/ipv4/ipvs/ip_vs_app.c
View File

@@ -577,7 +577,6 @@ static const struct file_operations ip_vs_app_fops = {
int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
char *o_buf, int o_len, char *n_buf, int n_len)
{
struct iphdr *iph;
int diff;
int o_offset;
int o_left;
@@ -607,8 +606,7 @@ int ip_vs_skb_replace(struct sk_buff *skb, gfp_t pri,
}
/* must update the iph total length here */
iph = skb->nh.iph;
iph->tot_len = htons(skb->len);
ip_hdr(skb)->tot_len = htons(skb->len);
LeaveFunction(9);
return 0;

38
net/ipv4/ipvs/ip_vs_core.c
View File

@@ -212,7 +212,7 @@ ip_vs_sched_persist(struct ip_vs_service *svc,
__be16 ports[2])
{
struct ip_vs_conn *cp = NULL;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
struct ip_vs_dest *dest;
struct ip_vs_conn *ct;
__be16 dport; /* destination port to forward */
@@ -381,7 +381,7 @@ struct ip_vs_conn *
ip_vs_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_conn *cp = NULL;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
struct ip_vs_dest *dest;
__be16 _ports[2], *pptr;
@@ -447,7 +447,7 @@ int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
struct ip_vs_protocol *pp)
{
__be16 _ports[2], *pptr;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
pptr = skb_header_pointer(skb, iph->ihl*4,
sizeof(_ports), _ports);
@@ -546,7 +546,7 @@ ip_vs_gather_frags(struct sk_buff *skb, u_int32_t user)
{
skb = ip_defrag(skb, user);
if (skb)
ip_send_check(skb->nh.iph);
ip_send_check(ip_hdr(skb));
return skb;
}
@@ -557,7 +557,7 @@ ip_vs_gather_frags(struct sk_buff *skb, u_int32_t user)
void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp, int inout)
{
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
unsigned int icmp_offset = iph->ihl*4;
struct icmphdr *icmph = (struct icmphdr *)(skb_network_header(skb) +
icmp_offset);
@@ -618,14 +618,14 @@ static int ip_vs_out_icmp(struct sk_buff **pskb, int *related)
*related = 1;
/* reassemble IP fragments */
if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
skb = ip_vs_gather_frags(skb, IP_DEFRAG_VS_OUT);
if (!skb)
return NF_STOLEN;
*pskb = skb;
}
iph = skb->nh.iph;
iph = ip_hdr(skb);
offset = ihl = iph->ihl * 4;
ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
if (ic == NULL)
@@ -740,14 +740,14 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
if (skb->ipvs_property)
return NF_ACCEPT;
iph = skb->nh.iph;
iph = ip_hdr(skb);
if (unlikely(iph->protocol == IPPROTO_ICMP)) {
int related, verdict = ip_vs_out_icmp(pskb, &related);
if (related)
return verdict;
skb = *pskb;
iph = skb->nh.iph;
iph = ip_hdr(skb);
}
pp = ip_vs_proto_get(iph->protocol);
@@ -760,7 +760,7 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
skb = ip_vs_gather_frags(skb, IP_DEFRAG_VS_OUT);
if (!skb)
return NF_STOLEN;
iph = skb->nh.iph;
iph = ip_hdr(skb);
*pskb = skb;
}
@@ -810,8 +810,8 @@ ip_vs_out(unsigned int hooknum, struct sk_buff **pskb,
if (pp->snat_handler && !pp->snat_handler(pskb, pp, cp))
goto drop;
skb = *pskb;
skb->nh.iph->saddr = cp->vaddr;
ip_send_check(skb->nh.iph);
ip_hdr(skb)->saddr = cp->vaddr;
ip_send_check(ip_hdr(skb));
/* For policy routing, packets originating from this
* machine itself may be routed differently to packets
@@ -861,7 +861,7 @@ ip_vs_in_icmp(struct sk_buff **pskb, int *related, unsigned int hooknum)
*related = 1;
/* reassemble IP fragments */
if (skb->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) {
if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
skb = ip_vs_gather_frags(skb,
hooknum == NF_IP_LOCAL_IN ?
IP_DEFRAG_VS_IN : IP_DEFRAG_VS_FWD);
@@ -870,7 +870,7 @@ ip_vs_in_icmp(struct sk_buff **pskb, int *related, unsigned int hooknum)
*pskb = skb;
}
iph = skb->nh.iph;
iph = ip_hdr(skb);
offset = ihl = iph->ihl * 4;
ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
if (ic == NULL)
@@ -966,19 +966,19 @@ ip_vs_in(unsigned int hooknum, struct sk_buff **pskb,
|| skb->dev == &loopback_dev || skb->sk)) {
IP_VS_DBG(12, "packet type=%d proto=%d daddr=%d.%d.%d.%d ignored\n",
skb->pkt_type,
skb->nh.iph->protocol,
NIPQUAD(skb->nh.iph->daddr));
ip_hdr(skb)->protocol,
NIPQUAD(ip_hdr(skb)->daddr));
return NF_ACCEPT;
}
iph = skb->nh.iph;
iph = ip_hdr(skb);
if (unlikely(iph->protocol == IPPROTO_ICMP)) {
int related, verdict = ip_vs_in_icmp(pskb, &related, hooknum);
if (related)
return verdict;
skb = *pskb;
iph = skb->nh.iph;
iph = ip_hdr(skb);
}
/* Protocol supported? */
@@ -1064,7 +1064,7 @@ ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff **pskb,
{
int r;
if ((*pskb)->nh.iph->protocol != IPPROTO_ICMP)
if (ip_hdr(*pskb)->protocol != IPPROTO_ICMP)
return NF_ACCEPT;
return ip_vs_in_icmp(pskb, &r, hooknum);

2
net/ipv4/ipvs/ip_vs_dh.c
View File

@@ -204,7 +204,7 @@ ip_vs_dh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_dest *dest;
struct ip_vs_dh_bucket *tbl;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_dh_schedule(): Scheduling...\n");

4
net/ipv4/ipvs/ip_vs_ftp.c
View File

@@ -159,7 +159,7 @@ static int ip_vs_ftp_out(struct ip_vs_app *app, struct ip_vs_conn *cp,
return 0;
if (cp->app_data == &ip_vs_ftp_pasv) {
iph = (*pskb)->nh.iph;
iph = ip_hdr(*pskb);
th = (struct tcphdr *)&(((char *)iph)[iph->ihl*4]);
data = (char *)th + (th->doff << 2);
data_limit = (*pskb)->tail;
@@ -262,7 +262,7 @@ static int ip_vs_ftp_in(struct ip_vs_app *app, struct ip_vs_conn *cp,
/*
* Detecting whether it is passive
*/
iph = (*pskb)->nh.iph;
iph = ip_hdr(*pskb);
th = (struct tcphdr *)&(((char *)iph)[iph->ihl*4]);
/* Since there may be OPTIONS in the TCP packet and the HLEN is

2
net/ipv4/ipvs/ip_vs_lblc.c
View File

@@ -521,7 +521,7 @@ ip_vs_lblc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
struct ip_vs_dest *dest;
struct ip_vs_lblc_table *tbl;
struct ip_vs_lblc_entry *en;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_lblc_schedule(): Scheduling...\n");

2
net/ipv4/ipvs/ip_vs_lblcr.c
View File

@@ -775,7 +775,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
struct ip_vs_dest *dest;
struct ip_vs_lblcr_table *tbl;
struct ip_vs_lblcr_entry *en;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_lblcr_schedule(): Scheduling...\n");

12
net/ipv4/ipvs/ip_vs_proto_tcp.c
View File

@@ -83,8 +83,8 @@ tcp_conn_schedule(struct sk_buff *skb,
}
if (th->syn &&
(svc = ip_vs_service_get(skb->mark, skb->nh.iph->protocol,
skb->nh.iph->daddr, th->dest))) {
(svc = ip_vs_service_get(skb->mark, ip_hdr(skb)->protocol,
ip_hdr(skb)->daddr, th->dest))) {
if (ip_vs_todrop()) {
/*
* It seems that we are very loaded.
@@ -142,7 +142,7 @@ tcp_snat_handler(struct sk_buff **pskb,
return 0;
}
tcph = (void *)(*pskb)->nh.iph + tcphoff;
tcph = (void *)ip_hdr(*pskb) + tcphoff;
tcph->source = cp->vport;
/* Adjust TCP checksums */
@@ -193,7 +193,7 @@ tcp_dnat_handler(struct sk_buff **pskb,
return 0;
}
tcph = (void *)(*pskb)->nh.iph + tcphoff;
tcph = (void *)ip_hdr(*pskb) + tcphoff;
tcph->dest = cp->dport;
/*
@@ -229,9 +229,9 @@ tcp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
case CHECKSUM_NONE:
skb->csum = skb_checksum(skb, tcphoff, skb->len - tcphoff, 0);
case CHECKSUM_COMPLETE:
if (csum_tcpudp_magic(skb->nh.iph->saddr, skb->nh.iph->daddr,
if (csum_tcpudp_magic(ip_hdr(skb)->saddr, ip_hdr(skb)->daddr,
skb->len - tcphoff,
skb->nh.iph->protocol, skb->csum)) {
ip_hdr(skb)->protocol, skb->csum)) {
IP_VS_DBG_RL_PKT(0, pp, skb, 0,
"Failed checksum for");
return 0;

14
net/ipv4/ipvs/ip_vs_proto_udp.c
View File

@@ -89,8 +89,8 @@ udp_conn_schedule(struct sk_buff *skb, struct ip_vs_protocol *pp,
return 0;
}
if ((svc = ip_vs_service_get(skb->mark, skb->nh.iph->protocol,
skb->nh.iph->daddr, uh->dest))) {
if ((svc = ip_vs_service_get(skb->mark, ip_hdr(skb)->protocol,
ip_hdr(skb)->daddr, uh->dest))) {
if (ip_vs_todrop()) {
/*
* It seems that we are very loaded.
@@ -151,7 +151,7 @@ udp_snat_handler(struct sk_buff **pskb,
return 0;
}
udph = (void *)(*pskb)->nh.iph + udphoff;
udph = (void *)ip_hdr(*pskb) + udphoff;
udph->source = cp->vport;
/*
@@ -206,7 +206,7 @@ udp_dnat_handler(struct sk_buff **pskb,
return 0;
}
udph = (void *)(*pskb)->nh.iph + udphoff;
udph = (void *)ip_hdr(*pskb) + udphoff;
udph->dest = cp->dport;
/*
@@ -251,10 +251,10 @@ udp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
skb->csum = skb_checksum(skb, udphoff,
skb->len - udphoff, 0);
case CHECKSUM_COMPLETE:
if (csum_tcpudp_magic(skb->nh.iph->saddr,
skb->nh.iph->daddr,
if (csum_tcpudp_magic(ip_hdr(skb)->saddr,
ip_hdr(skb)->daddr,
skb->len - udphoff,
skb->nh.iph->protocol,
ip_hdr(skb)->protocol,
skb->csum)) {
IP_VS_DBG_RL_PKT(0, pp, skb, 0,
"Failed checksum for");

2
net/ipv4/ipvs/ip_vs_sh.c
View File

@@ -201,7 +201,7 @@ ip_vs_sh_schedule(struct ip_vs_service *svc, const struct sk_buff *skb)
{
struct ip_vs_dest *dest;
struct ip_vs_sh_bucket *tbl;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
IP_VS_DBG(6, "ip_vs_sh_schedule(): Scheduling...\n");

24
net/ipv4/ipvs/ip_vs_xmit.c
View File

@@ -156,7 +156,7 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
struct ip_vs_protocol *pp)
{
struct rtable *rt; /* Route to the other host */
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
u8 tos = iph->tos;
int mtu;
struct flowi fl = {
@@ -193,7 +193,7 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
ip_rt_put(rt);
return NF_STOLEN;
}
ip_send_check(skb->nh.iph);
ip_send_check(ip_hdr(skb));
/* drop old route */
dst_release(skb->dst);
@@ -226,7 +226,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
{
struct rtable *rt; /* Route to the other host */
int mtu;
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
EnterFunction(10);
@@ -266,8 +266,8 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
/* mangle the packet */
if (pp->dnat_handler && !pp->dnat_handler(&skb, pp, cp))
goto tx_error;
skb->nh.iph->daddr = cp->daddr;
ip_send_check(skb->nh.iph);
ip_hdr(skb)->daddr = cp->daddr;
ip_send_check(ip_hdr(skb));
IP_VS_DBG_PKT(10, pp, skb, 0, "After DNAT");
@@ -320,7 +320,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
{
struct rtable *rt; /* Route to the other host */
struct net_device *tdev; /* Device to other host */
struct iphdr *old_iph = skb->nh.iph;
struct iphdr *old_iph = ip_hdr(skb);
u8 tos = old_iph->tos;
__be16 df = old_iph->frag_off;
struct iphdr *iph; /* Our new IP header */
@@ -377,7 +377,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
}
kfree_skb(skb);
skb = new_skb;
old_iph = skb->nh.iph;
old_iph = ip_hdr(skb);
}
skb->h.raw = (void *) old_iph;
@@ -396,7 +396,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
/*
* Push down and install the IPIP header.
*/
iph = skb->nh.iph;
iph = ip_hdr(skb);
iph->version = 4;
iph->ihl = sizeof(struct iphdr)>>2;
iph->frag_off = df;
@@ -436,7 +436,7 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
struct ip_vs_protocol *pp)
{
struct rtable *rt; /* Route to the other host */
struct iphdr *iph = skb->nh.iph;
struct iphdr *iph = ip_hdr(skb);
int mtu;
EnterFunction(10);
@@ -461,7 +461,7 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
ip_rt_put(rt);
return NF_STOLEN;
}
ip_send_check(skb->nh.iph);
ip_send_check(ip_hdr(skb));
/* drop old route */
dst_release(skb->dst);
@@ -515,12 +515,12 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
* mangle and send the packet here (only for VS/NAT)
*/
if (!(rt = __ip_vs_get_out_rt(cp, RT_TOS(skb->nh.iph->tos))))
if (!(rt = __ip_vs_get_out_rt(cp, RT_TOS(ip_hdr(skb)->tos))))
goto tx_error_icmp;
/* MTU checking */
mtu = dst_mtu(&rt->u.dst);
if ((skb->len > mtu) && (skb->nh.iph->frag_off & htons(IP_DF))) {
if ((skb->len > mtu) && (ip_hdr(skb)->frag_off & htons(IP_DF))) {
ip_rt_put(rt);
icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
IP_VS_DBG_RL("ip_vs_in_icmp(): frag needed\n");