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ipvs: drop inverse argument to conn_{in,out}_get 

No longer necessary since the information is included in the ip_vs_iphdr
itself.

Signed-off-by: Alex Gartrell <agartrell@fb.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
This commit is contained in:
Alex Gartrell 2015-08-26 09:40:32 -07:00 committed by Simon Horman
parent 3b5ca61768
commit 802c41adcf
5 changed files with 37 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
include/net/ip_vs.h
View File

@ -495,14 +495,12 @@ struct ip_vs_protocol {
struct ip_vs_conn *
(*conn_in_get)(int af,
const struct sk_buff *skb,
const struct ip_vs_iphdr *iph,
int inverse);
const struct ip_vs_iphdr *iph);
struct ip_vs_conn *
(*conn_out_get)(int af,
const struct sk_buff *skb,
const struct ip_vs_iphdr *iph,
int inverse);
const struct ip_vs_iphdr *iph);
int (*snat_handler)(struct sk_buff *skb, struct ip_vs_protocol *pp,
struct ip_vs_conn *cp, struct ip_vs_iphdr *iph);
@ -1232,14 +1230,12 @@ struct ip_vs_conn *ip_vs_conn_in_get(const struct ip_vs_conn_param *p);
struct ip_vs_conn *ip_vs_ct_in_get(const struct ip_vs_conn_param *p);
struct ip_vs_conn * ip_vs_conn_in_get_proto(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph,
int inverse);
const struct ip_vs_iphdr *iph);
struct ip_vs_conn *ip_vs_conn_out_get(const struct ip_vs_conn_param *p);
struct ip_vs_conn * ip_vs_conn_out_get_proto(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph,
int inverse);
const struct ip_vs_iphdr *iph);
/* Get reference to gain full access to conn.
* By default, RCU read-side critical sections have access only to

12
net/netfilter/ipvs/ip_vs_conn.c
View File

@ -316,7 +316,7 @@ struct ip_vs_conn *ip_vs_conn_in_get(const struct ip_vs_conn_param *p)
static int
ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph,
int inverse, struct ip_vs_conn_param *p)
struct ip_vs_conn_param *p)
{
__be16 _ports[2], *pptr;
struct net *net = skb_net(skb);
@ -325,7 +325,7 @@ ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb,
if (pptr == NULL)
return 1;
if (likely(!inverse))
if (likely(!ip_vs_iph_inverse(iph)))
ip_vs_conn_fill_param(net, af, iph->protocol, &iph->saddr,
pptr[0], &iph->daddr, pptr[1], p);
else
@ -336,11 +336,11 @@ ip_vs_conn_fill_param_proto(int af, const struct sk_buff *skb,
struct ip_vs_conn *
ip_vs_conn_in_get_proto(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph, int inverse)
const struct ip_vs_iphdr *iph)
{
struct ip_vs_conn_param p;
if (ip_vs_conn_fill_param_proto(af, skb, iph, inverse, &p))
if (ip_vs_conn_fill_param_proto(af, skb, iph, &p))
return NULL;
return ip_vs_conn_in_get(&p);
@ -440,11 +440,11 @@ struct ip_vs_conn *ip_vs_conn_out_get(const struct ip_vs_conn_param *p)
struct ip_vs_conn *
ip_vs_conn_out_get_proto(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph, int inverse)
const struct ip_vs_iphdr *iph)
{
struct ip_vs_conn_param p;
if (ip_vs_conn_fill_param_proto(af, skb, iph, inverse, &p))
if (ip_vs_conn_fill_param_proto(af, skb, iph, &p))
return NULL;
return ip_vs_conn_out_get(&p);

31
net/netfilter/ipvs/ip_vs_core.c
View File

@ -444,12 +444,18 @@ ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
/*
* Do not schedule replies from local real server.
*/
if ((!skb->dev || skb->dev->flags & IFF_LOOPBACK) &&
(cp = pp->conn_in_get(svc->af, skb, iph, 1))) {
IP_VS_DBG_PKT(12, svc->af, pp, skb, iph->off,
"Not scheduling reply for existing connection");
__ip_vs_conn_put(cp);
return NULL;
if ((!skb->dev || skb->dev->flags & IFF_LOOPBACK)) {
iph->hdr_flags ^= IP_VS_HDR_INVERSE;
cp = pp->conn_in_get(svc->af, skb, iph);
iph->hdr_flags ^= IP_VS_HDR_INVERSE;
if (cp) {
IP_VS_DBG_PKT(12, svc->af, pp, skb, iph->off,
"Not scheduling reply for existing"
" connection");
__ip_vs_conn_put(cp);
return NULL;
}
}
/*
@ -946,7 +952,7 @@ static int ip_vs_out_icmp(struct sk_buff *skb, int *related,
ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, true, &ciph);
/* The embedded headers contain source and dest in reverse order */
cp = pp->conn_out_get(AF_INET, skb, &ciph, 1);
cp = pp->conn_out_get(AF_INET, skb, &ciph);
if (!cp)
return NF_ACCEPT;
@ -1001,7 +1007,7 @@ static int ip_vs_out_icmp_v6(struct sk_buff *skb, int *related,
return NF_ACCEPT;
/* The embedded headers contain source and dest in reverse order */
cp = pp->conn_out_get(AF_INET6, skb, &ciph, 1);
cp = pp->conn_out_get(AF_INET6, skb, &ciph);
if (!cp)
return NF_ACCEPT;
@ -1227,7 +1233,7 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
/*
* Check if the packet belongs to an existing entry
*/
cp = pp->conn_out_get(af, skb, &iph, 0);
cp = pp->conn_out_get(af, skb, &iph);
if (likely(cp))
return handle_response(af, skb, pd, cp, &iph, hooknum);
@ -1458,7 +1464,7 @@ ip_vs_in_icmp(struct sk_buff *skb, int *related, unsigned int hooknum)
/* The embedded headers contain source and dest in reverse order.
* For IPIP this is error for request, not for reply.
*/
cp = pp->conn_in_get(AF_INET, skb, &ciph, ipip ? 0 : 1);
cp = pp->conn_in_get(AF_INET, skb, &ciph);
if (!cp)
return NF_ACCEPT;
@ -1601,8 +1607,7 @@ static int ip_vs_in_icmp_v6(struct sk_buff *skb, int *related,
/* The embedded headers contain source and dest in reverse order
* if not from localhost
*/
cp = pp->conn_in_get(AF_INET6, skb, &ciph,
(hooknum == NF_INET_LOCAL_OUT) ? 0 : 1);
cp = pp->conn_in_get(AF_INET6, skb, &ciph);
if (!cp)
return NF_ACCEPT;
@ -1712,7 +1717,7 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
/*
* Check if the packet belongs to an existing connection entry
*/
cp = pp->conn_in_get(af, skb, &iph, 0);
cp = pp->conn_in_get(af, skb, &iph);
conn_reuse_mode = sysctl_conn_reuse_mode(ipvs);
if (conn_reuse_mode && !iph.fragoffs &&

17
net/netfilter/ipvs/ip_vs_proto_ah_esp.c
View File

@ -42,10 +42,10 @@ struct isakmp_hdr {
static void
ah_esp_conn_fill_param_proto(struct net *net, int af,
const struct ip_vs_iphdr *iph, int inverse,
const struct ip_vs_iphdr *iph,
struct ip_vs_conn_param *p)
{
if (likely(!inverse))
if (likely(!ip_vs_iph_inverse(iph)))
ip_vs_conn_fill_param(net, af, IPPROTO_UDP,
&iph->saddr, htons(PORT_ISAKMP),
&iph->daddr, htons(PORT_ISAKMP), p);
@ -57,14 +57,13 @@ ah_esp_conn_fill_param_proto(struct net *net, int af,
static struct ip_vs_conn *
ah_esp_conn_in_get(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph,
int inverse)
const struct ip_vs_iphdr *iph)
{
struct ip_vs_conn *cp;
struct ip_vs_conn_param p;
struct net *net = skb_net(skb);
ah_esp_conn_fill_param_proto(net, af, iph, inverse, &p);
ah_esp_conn_fill_param_proto(net, af, iph, &p);
cp = ip_vs_conn_in_get(&p);
if (!cp) {
/*
@ -73,7 +72,7 @@ ah_esp_conn_in_get(int af, const struct sk_buff *skb,
*/
IP_VS_DBG_BUF(12, "Unknown ISAKMP entry for outin packet "
"%s%s %s->%s\n",
inverse ? "ICMP+" : "",
ip_vs_iph_icmp(iph) ? "ICMP+" : "",
ip_vs_proto_get(iph->protocol)->name,
IP_VS_DBG_ADDR(af, &iph->saddr),
IP_VS_DBG_ADDR(af, &iph->daddr));
@ -85,18 +84,18 @@ ah_esp_conn_in_get(int af, const struct sk_buff *skb,
static struct ip_vs_conn *
ah_esp_conn_out_get(int af, const struct sk_buff *skb,
const struct ip_vs_iphdr *iph, int inverse)
const struct ip_vs_iphdr *iph)
{
struct ip_vs_conn *cp;
struct ip_vs_conn_param p;
struct net *net = skb_net(skb);
ah_esp_conn_fill_param_proto(net, af, iph, inverse, &p);
ah_esp_conn_fill_param_proto(net, af, iph, &p);
cp = ip_vs_conn_out_get(&p);
if (!cp) {
IP_VS_DBG_BUF(12, "Unknown ISAKMP entry for inout packet "
"%s%s %s->%s\n",
inverse ? "ICMP+" : "",
ip_vs_iph_icmp(iph) ? "ICMP+" : "",
ip_vs_proto_get(iph->protocol)->name,
IP_VS_DBG_ADDR(af, &iph->saddr),
IP_VS_DBG_ADDR(af, &iph->daddr));

2
net/netfilter/xt_ipvs.c
View File

@ -85,7 +85,7 @@ ipvs_mt(const struct sk_buff *skb, struct xt_action_param *par)
/*
* Check if the packet belongs to an existing entry
*/
cp = pp->conn_out_get(family, skb, &iph, 1 /* inverse */);
cp = pp->conn_out_get(family, skb, &iph);
if (unlikely(cp == NULL)) {
match = false;
goto out;