*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
+ * Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* Todo:
u8 *start, *scratch;
struct crypto_comp *tfm;
int cpu;
-
+
plen = skb->len;
dlen = IPCOMP_SCRATCH_SIZE;
start = skb->data;
err = pskb_expand_head(skb, 0, dlen - plen, GFP_ATOMIC);
if (err)
goto out;
-
+
skb->truesize += dlen - plen;
__skb_put(skb, dlen - plen);
memcpy(skb->data, scratch, dlen);
-out:
+out:
put_cpu();
return err;
}
struct ip_comp_hdr *ipch;
if (skb_linearize_cow(skb))
- goto out;
+ goto out;
skb->ip_summed = CHECKSUM_NONE;
- /* Remove ipcomp header and decompress original payload */
+ /* Remove ipcomp header and decompress original payload */
iph = skb->nh.iph;
ipch = (void *)skb->data;
iph->protocol = ipch->nexthdr;
__skb_pull(skb, sizeof(*ipch));
err = ipcomp_decompress(x, skb);
-out:
+out:
return err;
}
u8 *start, *scratch;
struct crypto_comp *tfm;
int cpu;
-
+
ihlen = iph->ihl * 4;
plen = skb->len - ihlen;
dlen = IPCOMP_SCRATCH_SIZE;
err = -EMSGSIZE;
goto out;
}
-
+
memcpy(start + sizeof(struct ip_comp_hdr), scratch, dlen);
put_cpu();
pskb_trim(skb, ihlen + dlen + sizeof(struct ip_comp_hdr));
return 0;
-
-out:
+
+out:
put_cpu();
return err;
}
if (skb_linearize_cow(skb))
goto out_ok;
-
+
err = ipcomp_compress(x, skb);
iph = skb->nh.iph;
spi = htonl(ntohs(ipch->cpi));
x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr,
- spi, IPPROTO_COMP, AF_INET);
+ spi, IPPROTO_COMP, AF_INET);
if (!x)
return;
NETDEBUG(KERN_DEBUG "pmtu discovery on SA IPCOMP/%08x/%u.%u.%u.%u\n",
xfrm_state_put(x);
}
-/* We always hold one tunnel user reference to indicate a tunnel */
+/* We always hold one tunnel user reference to indicate a tunnel */
static struct xfrm_state *ipcomp_tunnel_create(struct xfrm_state *x)
{
struct xfrm_state *t;
-
+ u8 mode = XFRM_MODE_TUNNEL;
+
t = xfrm_state_alloc();
if (t == NULL)
goto out;
t->id.daddr.a4 = x->id.daddr.a4;
memcpy(&t->sel, &x->sel, sizeof(t->sel));
t->props.family = AF_INET;
- t->props.mode = XFRM_MODE_TUNNEL;
+ if (x->props.mode == XFRM_MODE_BEET)
+ mode = x->props.mode;
+ t->props.mode = mode;
t->props.saddr.a4 = x->props.saddr.a4;
t->props.flags = x->props.flags;
struct xfrm_state *t;
t = xfrm_state_lookup((xfrm_address_t *)&x->id.daddr.a4,
- x->props.saddr.a4, IPPROTO_IPIP, AF_INET);
+ x->props.saddr.a4, IPPROTO_IPIP, AF_INET);
if (!t) {
t = ipcomp_tunnel_create(x);
if (!t) {