#define IPV6_TLV_TEL_DST_SIZE 8
#ifdef IP6_TNL_DEBUG
-#define IP6_TNL_TRACE(x...) printk(KERN_DEBUG "%s:" x "\n", __FUNCTION__)
+#define IP6_TNL_TRACE(x...) printk(KERN_DEBUG "%s:" x "\n", __func__)
#else
#define IP6_TNL_TRACE(x...) do {;} while(0)
#endif
char name[IFNAMSIZ];
int err;
- if (p->name[0]) {
+ if (p->name[0])
strlcpy(name, p->name, IFNAMSIZ);
- } else {
- int i;
- for (i = 1; i < IP6_TNL_MAX; i++) {
- sprintf(name, "ip6tnl%d", i);
- if (__dev_get_by_name(name) == NULL)
- break;
- }
- if (i == IP6_TNL_MAX)
- goto failed;
- }
+ else
+ sprintf(name, "ip6tnl%%d");
+
dev = alloc_netdev(sizeof (*t), name, ip6_tnl_dev_setup);
if (dev == NULL)
goto failed;
+ if (strchr(name, '%')) {
+ if (dev_alloc_name(dev, name) < 0)
+ goto failed_free;
+ }
+
t = netdev_priv(dev);
dev->init = ip6_tnl_dev_init;
t->parms = *p;
- if ((err = register_netdevice(dev)) < 0) {
- free_netdev(dev);
- goto failed;
- }
+ if ((err = register_netdevice(dev)) < 0)
+ goto failed_free;
+
dev_hold(dev);
ip6_tnl_link(t);
return t;
+
+failed_free:
+ free_netdev(dev);
failed:
return NULL;
}
static int
ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
- int *type, int *code, int *msg, __be32 *info, int offset)
+ int *type, int *code, int *msg, __u32 *info, int offset)
{
struct ipv6hdr *ipv6h = (struct ipv6hdr *) skb->data;
struct ip6_tnl *t;
if ((*code) == ICMPV6_HDR_FIELD)
teli = parse_tlv_tnl_enc_lim(skb, skb->data);
- if (teli && teli == ntohl(*info) - 2) {
+ if (teli && teli == *info - 2) {
tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->data[teli];
if (tel->encap_limit == 0) {
if (net_ratelimit())
}
break;
case ICMPV6_PKT_TOOBIG:
- mtu = ntohl(*info) - offset;
+ mtu = *info - offset;
if (mtu < IPV6_MIN_MTU)
mtu = IPV6_MIN_MTU;
t->dev->mtu = mtu;
static int
ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
- int type, int code, int offset, __u32 info)
+ int type, int code, int offset, __be32 info)
{
int rel_msg = 0;
int rel_type = type;
int rel_code = code;
- __u32 rel_info = info;
+ __u32 rel_info = ntohl(info);
int err;
struct sk_buff *skb2;
struct iphdr *eiph;
skb2->dst = NULL;
skb_pull(skb2, offset);
skb_reset_network_header(skb2);
- eiph = skb2->nh.iph;
+ eiph = ip_hdr(skb2);
/* Try to guess incoming interface */
memset(&fl, 0, sizeof(fl));
fl.fl4_dst = eiph->saddr;
fl.fl4_tos = RT_TOS(eiph->tos);
fl.proto = IPPROTO_IPIP;
- if (ip_route_output_key(&rt, &fl))
+ if (ip_route_output_key(&init_net, &rt, &fl))
goto out;
skb2->dev = rt->u.dst.dev;
fl.fl4_dst = eiph->daddr;
fl.fl4_src = eiph->saddr;
fl.fl4_tos = eiph->tos;
- if (ip_route_output_key(&rt, &fl) ||
+ if (ip_route_output_key(&init_net, &rt, &fl) ||
rt->u.dst.dev->type != ARPHRD_TUNNEL) {
ip_rt_put(rt);
goto out;
}
+ skb2->dst = (struct dst_entry *)rt;
} else {
ip_rt_put(rt);
if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
goto out;
skb2->dst->ops->update_pmtu(skb2->dst, rel_info);
- rel_info = htonl(rel_info);
}
- icmp_send(skb2, rel_type, rel_code, rel_info);
+ icmp_send(skb2, rel_type, rel_code, htonl(rel_info));
out:
kfree_skb(skb2);
static int
ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
- int type, int code, int offset, __u32 info)
+ int type, int code, int offset, __be32 info)
{
int rel_msg = 0;
int rel_type = type;
int rel_code = code;
- __u32 rel_info = info;
+ __u32 rel_info = ntohl(info);
int err;
err = ip6_tnl_err(skb, IPPROTO_IPV6, opt, &rel_type, &rel_code,
skb_reset_network_header(skb2);
/* Try to guess incoming interface */
- rt = rt6_lookup(&skb2->nh.ipv6h->saddr, NULL, 0, 0);
+ rt = rt6_lookup(&init_net, &ipv6_hdr(skb2)->saddr, NULL, 0, 0);
if (rt && rt->rt6i_dev)
skb2->dev = rt->rt6i_dev;
__u8 dsfield = ipv6_get_dsfield(ipv6h) & ~INET_ECN_MASK;
if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
- ipv4_change_dsfield(skb->nh.iph, INET_ECN_MASK, dsfield);
+ ipv4_change_dsfield(ip_hdr(skb), INET_ECN_MASK, dsfield);
if (INET_ECN_is_ce(dsfield))
- IP_ECN_set_ce(skb->nh.iph);
+ IP_ECN_set_ce(ip_hdr(skb));
}
static void ip6ip6_dscp_ecn_decapsulate(struct ip6_tnl *t,
struct sk_buff *skb)
{
if (t->parms.flags & IP6_TNL_F_RCV_DSCP_COPY)
- ipv6_copy_dscp(ipv6h, skb->nh.ipv6h);
+ ipv6_copy_dscp(ipv6_get_dsfield(ipv6h), ipv6_hdr(skb));
if (INET_ECN_is_ce(ipv6_get_dsfield(ipv6h)))
- IP6_ECN_set_ce(skb->nh.ipv6h);
+ IP6_ECN_set_ce(ipv6_hdr(skb));
}
static inline int ip6_tnl_rcv_ctl(struct ip6_tnl *t)
struct net_device *ldev = NULL;
if (p->link)
- ldev = dev_get_by_index(p->link);
+ ldev = dev_get_by_index(&init_net, p->link);
if ((ipv6_addr_is_multicast(&p->laddr) ||
- likely(ipv6_chk_addr(&p->laddr, ldev, 0))) &&
- likely(!ipv6_chk_addr(&p->raddr, NULL, 0)))
+ likely(ipv6_chk_addr(&init_net, &p->laddr, ldev, 0))) &&
+ likely(!ipv6_chk_addr(&init_net, &p->raddr, NULL, 0)))
ret = 1;
if (ldev)
struct ipv6hdr *ipv6h,
struct sk_buff *skb))
{
- struct ipv6hdr *ipv6h;
struct ip6_tnl *t;
-
- ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
read_lock(&ip6_tnl_lock);
goto discard;
}
secpath_reset(skb);
- skb->mac.raw = skb->nh.raw;
+ skb->mac_header = skb->network_header;
skb_reset_network_header(skb);
skb->protocol = htons(protocol);
skb->pkt_type = PACKET_HOST;
struct net_device *ldev = NULL;
if (p->link)
- ldev = dev_get_by_index(p->link);
+ ldev = dev_get_by_index(&init_net, p->link);
- if (unlikely(!ipv6_chk_addr(&p->laddr, ldev, 0)))
+ if (unlikely(!ipv6_chk_addr(&init_net, &p->laddr, ldev, 0)))
printk(KERN_WARNING
"%s xmit: Local address not yet configured!\n",
p->name);
else if (!ipv6_addr_is_multicast(&p->raddr) &&
- unlikely(ipv6_chk_addr(&p->raddr, NULL, 0)))
+ unlikely(ipv6_chk_addr(&init_net, &p->raddr, NULL, 0)))
printk(KERN_WARNING
"%s xmit: Routing loop! "
"Remote address found on this node!\n",
{
struct ip6_tnl *t = netdev_priv(dev);
struct net_device_stats *stats = &t->stat;
- struct ipv6hdr *ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct ipv6_tel_txoption opt;
struct dst_entry *dst;
struct net_device *tdev;
int mtu;
- int max_headroom = sizeof(struct ipv6hdr);
+ unsigned int max_headroom = sizeof(struct ipv6hdr);
u8 proto;
int err = -1;
int pkt_len;
if ((dst = ip6_tnl_dst_check(t)) != NULL)
dst_hold(dst);
else {
- dst = ip6_route_output(NULL, fl);
+ dst = ip6_route_output(&init_net, NULL, fl);
if (dst->error || xfrm_lookup(&dst, fl, NULL, 0) < 0)
goto tx_err_link_failure;
*/
max_headroom += LL_RESERVED_SPACE(tdev);
- if (skb_headroom(skb) < max_headroom ||
- skb_cloned(skb) || skb_shared(skb)) {
+ if (skb_headroom(skb) < max_headroom || skb_shared(skb) ||
+ (skb_cloned(skb) && !skb_clone_writable(skb, 0))) {
struct sk_buff *new_skb;
if (!(new_skb = skb_realloc_headroom(skb, max_headroom)))
dst_release(skb->dst);
skb->dst = dst_clone(dst);
- skb->h.raw = skb->nh.raw;
+ skb->transport_header = skb->network_header;
proto = fl->proto;
if (encap_limit >= 0) {
}
skb_push(skb, sizeof(struct ipv6hdr));
skb_reset_network_header(skb);
- ipv6h = skb->nh.ipv6h;
+ ipv6h = ipv6_hdr(skb);
*(__be32*)ipv6h = fl->fl6_flowlabel | htonl(0x60000000);
dsfield = INET_ECN_encapsulate(0, dsfield);
ipv6_change_dsfield(ipv6h, ~INET_ECN_MASK, dsfield);
- ipv6h->payload_len = htons(skb->len - sizeof(struct ipv6hdr));
ipv6h->hop_limit = t->parms.hop_limit;
ipv6h->nexthdr = proto;
ipv6_addr_copy(&ipv6h->saddr, &fl->fl6_src);
ipv6_addr_copy(&ipv6h->daddr, &fl->fl6_dst);
nf_reset(skb);
pkt_len = skb->len;
- err = NF_HOOK(PF_INET6, NF_IP6_LOCAL_OUT, skb, NULL,
- skb->dst->dev, dst_output);
+ err = ip6_local_out(skb);
if (net_xmit_eval(err) == 0) {
stats->tx_bytes += pkt_len;
ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct iphdr *iph = skb->nh.iph;
+ struct iphdr *iph = ip_hdr(skb);
int encap_limit = -1;
struct flowi fl;
__u8 dsfield;
dsfield = ipv4_get_dsfield(iph);
if ((t->parms.flags & IP6_TNL_F_USE_ORIG_TCLASS))
- fl.fl6_flowlabel |= ntohl(((__u32)iph->tos << IPV6_TCLASS_SHIFT)
- & IPV6_TCLASS_MASK);
+ fl.fl6_flowlabel |= htonl((__u32)iph->tos << IPV6_TCLASS_SHIFT)
+ & IPV6_TCLASS_MASK;
err = ip6_tnl_xmit2(skb, dev, dsfield, &fl, encap_limit, &mtu);
if (err != 0) {
ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ip6_tnl *t = netdev_priv(dev);
- struct ipv6hdr *ipv6h = skb->nh.ipv6h;
+ struct ipv6hdr *ipv6h = ipv6_hdr(skb);
int encap_limit = -1;
__u16 offset;
struct flowi fl;
!ip6_tnl_xmit_ctl(t) || ip6_tnl_addr_conflict(t, ipv6h))
return -1;
- if ((offset = parse_tlv_tnl_enc_lim(skb, skb->nh.raw)) > 0) {
+ offset = parse_tlv_tnl_enc_lim(skb, skb_network_header(skb));
+ if (offset > 0) {
struct ipv6_tlv_tnl_enc_lim *tel;
- tel = (struct ipv6_tlv_tnl_enc_lim *) &skb->nh.raw[offset];
+ tel = (struct ipv6_tlv_tnl_enc_lim *)&skb_network_header(skb)[offset];
if (tel->encap_limit == 0) {
icmpv6_send(skb, ICMPV6_PARAMPROB,
ICMPV6_HDR_FIELD, offset + 2, skb->dev);
int strict = (ipv6_addr_type(&p->raddr) &
(IPV6_ADDR_MULTICAST|IPV6_ADDR_LINKLOCAL));
- struct rt6_info *rt = rt6_lookup(&p->raddr, &p->laddr,
+ struct rt6_info *rt = rt6_lookup(&init_net, &p->raddr, &p->laddr,
p->link, strict);
if (rt == NULL)
static void ip6_tnl_dev_setup(struct net_device *dev)
{
- SET_MODULE_OWNER(dev);
dev->uninit = ip6_tnl_dev_uninit;
dev->destructor = free_netdev;
dev->hard_start_xmit = ip6_tnl_xmit;
projects / h-e-n / blobdiff