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libcxgb,iw_cxgb4,cxgbit: add cxgb_get_4tuple()

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Add cxgb_get_4tuple() in libcxgb_cm.c to remove
it's duplicate definitions from cxgb4/cm.c and
cxgbit/cxgbit_cm.c.

Signed-off-by: Varun Prakash <varun@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Varun Prakash
2016-09-13 21:23:56 +05:30
committed by David S. Miller
parent 2679d04041
commit 85e42b044e
7 changed files with 125 additions and 77 deletions
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41
drivers/target/iscsi/cxgbit/cxgbit_cm.c
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@@ -24,6 +24,7 @@
#include <net/ip6_route.h>
#include <net/addrconf.h>
#include <libcxgb_cm.h>
#include "cxgbit.h"
#include "clip_tbl.h"
@@ -789,42 +790,6 @@ void _cxgbit_free_csk(struct kref *kref)
kfree(csk);
}
static void
cxgbit_get_tuple_info(struct cpl_pass_accept_req *req, int *iptype,
__u8 *local_ip, __u8 *peer_ip, __be16 *local_port,
__be16 *peer_port)
{
u32 eth_len = ETH_HDR_LEN_G(be32_to_cpu(req->hdr_len));
u32 ip_len = IP_HDR_LEN_G(be32_to_cpu(req->hdr_len));
struct iphdr *ip = (struct iphdr *)((u8 *)(req + 1) + eth_len);
struct ipv6hdr *ip6 = (struct ipv6hdr *)((u8 *)(req + 1) + eth_len);
struct tcphdr *tcp = (struct tcphdr *)
((u8 *)(req + 1) + eth_len + ip_len);
if (ip->version == 4) {
pr_debug("%s saddr 0x%x daddr 0x%x sport %u dport %u\n",
__func__,
ntohl(ip->saddr), ntohl(ip->daddr),
ntohs(tcp->source),
ntohs(tcp->dest));
*iptype = 4;
memcpy(peer_ip, &ip->saddr, 4);
memcpy(local_ip, &ip->daddr, 4);
} else {
pr_debug("%s saddr %pI6 daddr %pI6 sport %u dport %u\n",
__func__,
ip6->saddr.s6_addr, ip6->daddr.s6_addr,
ntohs(tcp->source),
ntohs(tcp->dest));
*iptype = 6;
memcpy(peer_ip, ip6->saddr.s6_addr, 16);
memcpy(local_ip, ip6->daddr.s6_addr, 16);
}
*peer_port = tcp->source;
*local_port = tcp->dest;
}
static int
cxgbit_our_interface(struct cxgbit_device *cdev, struct net_device *egress_dev)
{
@@ -1340,8 +1305,8 @@ cxgbit_pass_accept_req(struct cxgbit_device *cdev, struct sk_buff *skb)
goto rel_skb;
}
cxgbit_get_tuple_info(req, &iptype, local_ip, peer_ip,
&local_port, &peer_port);
cxgb_get_4tuple(req, cdev->lldi.adapter_type, &iptype, local_ip,
peer_ip, &local_port, &peer_port);
/* Find output route */
if (iptype == 4) {