tcp_conn_in_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
const struct iphdr *iph, unsigned int proto_off, int inverse)
{
- __u16 _ports[2], *pptr;
+ __be16 _ports[2], *pptr;
pptr = skb_header_pointer(skb, proto_off, sizeof(_ports), _ports);
if (pptr == NULL)
tcp_conn_out_get(const struct sk_buff *skb, struct ip_vs_protocol *pp,
const struct iphdr *iph, unsigned int proto_off, int inverse)
{
- __u16 _ports[2], *pptr;
+ __be16 _ports[2], *pptr;
pptr = skb_header_pointer(skb, proto_off, sizeof(_ports), _ports);
if (pptr == NULL)
struct ip_vs_service *svc;
struct tcphdr _tcph, *th;
- th = skb_header_pointer(skb, skb->nh.iph->ihl*4,
- sizeof(_tcph), &_tcph);
+ th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
if (th == NULL) {
*verdict = NF_DROP;
return 0;
}
if (th->syn &&
- (svc = ip_vs_service_get(skb->nfmark, 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.
static inline void
-tcp_fast_csum_update(struct tcphdr *tcph, u32 oldip, u32 newip,
- u16 oldport, u16 newport)
+tcp_fast_csum_update(struct tcphdr *tcph, __be32 oldip, __be32 newip,
+ __be16 oldport, __be16 newport)
{
tcph->check =
- ip_vs_check_diff(~oldip, newip,
- ip_vs_check_diff(oldport ^ 0xFFFF,
- newport, tcph->check));
+ csum_fold(ip_vs_check_diff4(oldip, newip,
+ ip_vs_check_diff2(oldport, newport,
+ ~csum_unfold(tcph->check))));
}
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
struct tcphdr *tcph;
- unsigned int tcphoff = (*pskb)->nh.iph->ihl * 4;
+ const unsigned int tcphoff = ip_hdrlen(*pskb);
/* csum_check requires unshared skb */
if (!ip_vs_make_skb_writable(pskb, tcphoff+sizeof(*tcph)))
return 0;
}
- tcph = (void *)(*pskb)->nh.iph + tcphoff;
+ tcph = (void *)ip_hdr(*pskb) + tcphoff;
tcph->source = cp->vport;
/* Adjust TCP checksums */
/* Only port and addr are changed, do fast csum update */
tcp_fast_csum_update(tcph, cp->daddr, cp->vaddr,
cp->dport, cp->vport);
- if ((*pskb)->ip_summed == CHECKSUM_HW)
+ if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
(*pskb)->ip_summed = CHECKSUM_NONE;
} else {
/* full checksum calculation */
struct ip_vs_protocol *pp, struct ip_vs_conn *cp)
{
struct tcphdr *tcph;
- unsigned int tcphoff = (*pskb)->nh.iph->ihl * 4;
+ const unsigned int tcphoff = ip_hdrlen(*pskb);
/* csum_check requires unshared skb */
if (!ip_vs_make_skb_writable(pskb, tcphoff+sizeof(*tcph)))
return 0;
}
- tcph = (void *)(*pskb)->nh.iph + tcphoff;
+ tcph = (void *)ip_hdr(*pskb) + tcphoff;
tcph->dest = cp->dport;
/*
/* Only port and addr are changed, do fast csum update */
tcp_fast_csum_update(tcph, cp->vaddr, cp->daddr,
cp->vport, cp->dport);
- if ((*pskb)->ip_summed == CHECKSUM_HW)
+ if ((*pskb)->ip_summed == CHECKSUM_COMPLETE)
(*pskb)->ip_summed = CHECKSUM_NONE;
} else {
/* full checksum calculation */
static int
tcp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp)
{
- unsigned int tcphoff = skb->nh.iph->ihl*4;
+ const unsigned int tcphoff = ip_hdrlen(skb);
switch (skb->ip_summed) {
case CHECKSUM_NONE:
skb->csum = skb_checksum(skb, tcphoff, skb->len - tcphoff, 0);
- case CHECKSUM_HW:
- if (csum_tcpudp_magic(skb->nh.iph->saddr, skb->nh.iph->daddr,
+ case CHECKSUM_COMPLETE:
+ 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;
}
break;
default:
- /* CHECKSUM_UNNECESSARY */
+ /* No need to checksum. */
break;
}
#define TCP_DIR_OUTPUT 4
#define TCP_DIR_INPUT_ONLY 8
-static int tcp_state_off[IP_VS_DIR_LAST] = {
+static const int tcp_state_off[IP_VS_DIR_LAST] = {
[IP_VS_DIR_INPUT] = TCP_DIR_INPUT,
[IP_VS_DIR_OUTPUT] = TCP_DIR_OUTPUT,
[IP_VS_DIR_INPUT_ONLY] = TCP_DIR_INPUT_ONLY,
[IP_VS_TCP_S_LAST] = 2*HZ,
};
-
-#if 0
-
-/* FIXME: This is going to die */
-
-static int tcp_timeouts_dos[IP_VS_TCP_S_LAST+1] = {
- [IP_VS_TCP_S_NONE] = 2*HZ,
- [IP_VS_TCP_S_ESTABLISHED] = 8*60*HZ,
- [IP_VS_TCP_S_SYN_SENT] = 60*HZ,
- [IP_VS_TCP_S_SYN_RECV] = 10*HZ,
- [IP_VS_TCP_S_FIN_WAIT] = 60*HZ,
- [IP_VS_TCP_S_TIME_WAIT] = 60*HZ,
- [IP_VS_TCP_S_CLOSE] = 10*HZ,
- [IP_VS_TCP_S_CLOSE_WAIT] = 60*HZ,
- [IP_VS_TCP_S_LAST_ACK] = 30*HZ,
- [IP_VS_TCP_S_LISTEN] = 2*60*HZ,
- [IP_VS_TCP_S_SYNACK] = 100*HZ,
- [IP_VS_TCP_S_LAST] = 2*HZ,
-};
-
-#endif
-
static char * tcp_state_name_table[IP_VS_TCP_S_LAST+1] = {
[IP_VS_TCP_S_NONE] = "NONE",
[IP_VS_TCP_S_ESTABLISHED] = "ESTABLISHED",
struct ip_vs_dest *dest = cp->dest;
IP_VS_DBG(8, "%s %s [%c%c%c%c] %u.%u.%u.%u:%d->"
- "%u.%u.%u.%u:%d state: %s->%s cnt:%d\n",
+ "%u.%u.%u.%u:%d state: %s->%s conn->refcnt:%d\n",
pp->name,
(state_off==TCP_DIR_OUTPUT)?"output ":"input ",
th->syn? 'S' : '.',
{
struct tcphdr _tcph, *th;
- th = skb_header_pointer(skb, skb->nh.iph->ihl*4,
- sizeof(_tcph), &_tcph);
+ th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
if (th == NULL)
return 0;
static struct list_head tcp_apps[TCP_APP_TAB_SIZE];
static DEFINE_SPINLOCK(tcp_app_lock);
-static inline __u16 tcp_app_hashkey(__u16 port)
+static inline __u16 tcp_app_hashkey(__be16 port)
{
- return ((port >> TCP_APP_TAB_BITS) ^ port) & TCP_APP_TAB_MASK;
+ return (((__force u16)port >> TCP_APP_TAB_BITS) ^ (__force u16)port)
+ & TCP_APP_TAB_MASK;
}
static int tcp_register_app(struct ip_vs_app *inc)
{
struct ip_vs_app *i;
- __u16 hash, port = inc->port;
+ __u16 hash;
+ __be16 port = inc->port;
int ret = 0;
hash = tcp_app_hashkey(port);
projects / linux-2.6 / blobdiff