#include <net/sock.h>
#include <net/ipv6.h>
#include <net/ip6_checksum.h>
+#include <net/rawv6.h>
#include <net/xfrm.h>
#include <net/mip6.h>
-static xfrm_address_t *mip6_xfrm_addr(struct xfrm_state *x, xfrm_address_t *addr)
-{
- return x->coaddr;
-}
-
static inline unsigned int calc_padlen(unsigned int len, unsigned int n)
{
return (n - len + 16) & 0x7;
return len;
}
-int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
+static int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
{
struct ip6_mh *mh;
- if (!pskb_may_pull(skb, (skb->h.raw - skb->data) + 8) ||
- !pskb_may_pull(skb, (skb->h.raw - skb->data) + ((skb->h.raw[1] + 1) << 3)))
+ if (!pskb_may_pull(skb, (skb_transport_offset(skb)) + 8) ||
+ !pskb_may_pull(skb, (skb_transport_offset(skb) +
+ ((skb_transport_header(skb)[1] + 1) << 3))))
return -1;
- mh = (struct ip6_mh *)skb->h.raw;
+ mh = (struct ip6_mh *)skb_transport_header(skb);
if (mh->ip6mh_hdrlen < mip6_mh_len(mh->ip6mh_type)) {
LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH message too short: %d vs >=%d\n",
};
static struct mip6_report_rate_limiter mip6_report_rl = {
- .lock = SPIN_LOCK_UNLOCKED
+ .lock = __SPIN_LOCK_UNLOCKED(mip6_report_rl.lock)
};
static int mip6_destopt_input(struct xfrm_state *x, struct sk_buff *skb)
{
struct ipv6hdr *iph = ipv6_hdr(skb);
struct ipv6_destopt_hdr *destopt = (struct ipv6_destopt_hdr *)skb->data;
+ int err = destopt->nexthdr;
+ spin_lock(&x->lock);
if (!ipv6_addr_equal(&iph->saddr, (struct in6_addr *)x->coaddr) &&
!ipv6_addr_any((struct in6_addr *)x->coaddr))
- return -ENOENT;
+ err = -ENOENT;
+ spin_unlock(&x->lock);
- return destopt->nexthdr;
+ return err;
}
/* Destination Option Header is inserted.
u8 nexthdr;
int len;
- iph = (struct ipv6hdr *)skb->data;
- iph->payload_len = htons(skb->len - sizeof(*iph));
+ skb_push(skb, -skb_network_offset(skb));
+ iph = ipv6_hdr(skb);
- nexthdr = *skb_network_header(skb);
- *skb_network_header(skb) = IPPROTO_DSTOPTS;
+ nexthdr = *skb_mac_header(skb);
+ *skb_mac_header(skb) = IPPROTO_DSTOPTS;
- dstopt = (struct ipv6_destopt_hdr *)skb->h.raw;
+ dstopt = (struct ipv6_destopt_hdr *)skb_transport_header(skb);
dstopt->nexthdr = nexthdr;
hao = mip6_padn((char *)(dstopt + 1),
len = ((char *)hao - (char *)dstopt) + sizeof(*hao);
memcpy(&hao->addr, &iph->saddr, sizeof(hao->addr));
+ spin_lock_bh(&x->lock);
memcpy(&iph->saddr, x->coaddr, sizeof(iph->saddr));
+ spin_unlock_bh(&x->lock);
BUG_TRAP(len == x->props.header_len);
dstopt->hdrlen = (x->props.header_len >> 3) - 1;
struct ipv6_opt_hdr *exthdr =
(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
const unsigned char *nh = skb_network_header(skb);
- unsigned int packet_len = skb->tail - nh;
+ unsigned int packet_len = skb->tail - skb->network_header;
int found_rhdr = 0;
*nexthdr = &ipv6_hdr(skb)->nexthdr;
.description = "MIP6DESTOPT",
.owner = THIS_MODULE,
.proto = IPPROTO_DSTOPTS,
- .flags = XFRM_TYPE_NON_FRAGMENT,
+ .flags = XFRM_TYPE_NON_FRAGMENT | XFRM_TYPE_LOCAL_COADDR,
.init_state = mip6_destopt_init_state,
.destructor = mip6_destopt_destroy,
.input = mip6_destopt_input,
.output = mip6_destopt_output,
.reject = mip6_destopt_reject,
.hdr_offset = mip6_destopt_offset,
- .local_addr = mip6_xfrm_addr,
};
static int mip6_rthdr_input(struct xfrm_state *x, struct sk_buff *skb)
{
struct rt2_hdr *rt2 = (struct rt2_hdr *)skb->data;
+ int err = rt2->rt_hdr.nexthdr;
+ spin_lock(&x->lock);
if (!ipv6_addr_equal(&rt2->addr, (struct in6_addr *)x->coaddr) &&
!ipv6_addr_any((struct in6_addr *)x->coaddr))
- return -ENOENT;
+ err = -ENOENT;
+ spin_unlock(&x->lock);
- return rt2->rt_hdr.nexthdr;
+ return err;
}
/* Routing Header type 2 is inserted.
struct rt2_hdr *rt2;
u8 nexthdr;
- iph = (struct ipv6hdr *)skb->data;
- iph->payload_len = htons(skb->len - sizeof(*iph));
+ skb_push(skb, -skb_network_offset(skb));
+ iph = ipv6_hdr(skb);
- nexthdr = *skb_network_header(skb);
- *skb_network_header(skb) = IPPROTO_ROUTING;
+ nexthdr = *skb_mac_header(skb);
+ *skb_mac_header(skb) = IPPROTO_ROUTING;
- rt2 = (struct rt2_hdr *)skb->h.raw;
+ rt2 = (struct rt2_hdr *)skb_transport_header(skb);
rt2->rt_hdr.nexthdr = nexthdr;
rt2->rt_hdr.hdrlen = (x->props.header_len >> 3) - 1;
rt2->rt_hdr.type = IPV6_SRCRT_TYPE_2;
BUG_TRAP(rt2->rt_hdr.hdrlen == 2);
memcpy(&rt2->addr, &iph->daddr, sizeof(rt2->addr));
+ spin_lock_bh(&x->lock);
memcpy(&iph->daddr, x->coaddr, sizeof(iph->daddr));
+ spin_unlock_bh(&x->lock);
return 0;
}
struct ipv6_opt_hdr *exthdr =
(struct ipv6_opt_hdr *)(ipv6_hdr(skb) + 1);
const unsigned char *nh = skb_network_header(skb);
- unsigned int packet_len = skb->tail - nh;
+ unsigned int packet_len = skb->tail - skb->network_header;
int found_rhdr = 0;
*nexthdr = &ipv6_hdr(skb)->nexthdr;
.description = "MIP6RT",
.owner = THIS_MODULE,
.proto = IPPROTO_ROUTING,
- .flags = XFRM_TYPE_NON_FRAGMENT,
+ .flags = XFRM_TYPE_NON_FRAGMENT | XFRM_TYPE_REMOTE_COADDR,
.init_state = mip6_rthdr_init_state,
.destructor = mip6_rthdr_destroy,
.input = mip6_rthdr_input,
.output = mip6_rthdr_output,
.hdr_offset = mip6_rthdr_offset,
- .remote_addr = mip6_xfrm_addr,
};
-int __init mip6_init(void)
+static int __init mip6_init(void)
{
printk(KERN_INFO "Mobile IPv6\n");
printk(KERN_INFO "%s: can't add xfrm type(rthdr)\n", __FUNCTION__);
goto mip6_rthdr_xfrm_fail;
}
+ if (rawv6_mh_filter_register(mip6_mh_filter) < 0) {
+ printk(KERN_INFO "%s: can't add rawv6 mh filter\n", __FUNCTION__);
+ goto mip6_rawv6_mh_fail;
+ }
+
+
return 0;
+ mip6_rawv6_mh_fail:
+ xfrm_unregister_type(&mip6_rthdr_type, AF_INET6);
mip6_rthdr_xfrm_fail:
xfrm_unregister_type(&mip6_destopt_type, AF_INET6);
mip6_destopt_xfrm_fail:
return -EAGAIN;
}
-void __exit mip6_fini(void)
+static void __exit mip6_fini(void)
{
+ if (rawv6_mh_filter_unregister(mip6_mh_filter) < 0)
+ printk(KERN_INFO "%s: can't remove rawv6 mh filter\n", __FUNCTION__);
if (xfrm_unregister_type(&mip6_rthdr_type, AF_INET6) < 0)
printk(KERN_INFO "%s: can't remove xfrm type(rthdr)\n", __FUNCTION__);
if (xfrm_unregister_type(&mip6_destopt_type, AF_INET6) < 0)
printk(KERN_INFO "%s: can't remove xfrm type(destopt)\n", __FUNCTION__);
}
+
+module_init(mip6_init);
+module_exit(mip6_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_XFRM_TYPE(AF_INET6, XFRM_PROTO_DSTOPTS);
+MODULE_ALIAS_XFRM_TYPE(AF_INET6, XFRM_PROTO_ROUTING);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff