*
* Adapted from linux/net/ipv4/raw.c
*
- * $Id: raw.c,v 1.51 2002/02/01 22:01:04 davem Exp $
- *
* Fixes:
* Hideaki YOSHIFUJI : sin6_scope_id support
* YOSHIFUJI,H.@USAGI : raw checksum (RFC2292(bis) compliance)
#if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
#include <net/mip6.h>
#endif
+#include <linux/mroute6.h>
#include <net/raw.h>
#include <net/rawv6.h>
int is_multicast = ipv6_addr_is_multicast(loc_addr);
sk_for_each_from(sk, node)
- if (inet_sk(sk)->num == num) {
+ if (inet_sk(sk)->inet_num == num) {
struct ipv6_pinfo *np = inet6_sk(sk);
if (!net_eq(sock_net(sk), net))
read_lock(&raw_v6_hashinfo.lock);
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
- /*
- * The first socket found will be delivered after
- * delivery to transport protocols.
- */
-
if (sk == NULL)
goto out;
/* Raw sockets are IPv6 only */
if (addr_type == IPV6_ADDR_MAPPED)
- return(-EADDRNOTAVAIL);
+ return -EADDRNOTAVAIL;
lock_sock(sk);
if (sk->sk_state != TCP_CLOSE)
goto out;
+ rcu_read_lock();
/* Check if the address belongs to the host. */
if (addr_type != IPV6_ADDR_ANY) {
struct net_device *dev = NULL;
/* Binding to link-local address requires an interface */
if (!sk->sk_bound_dev_if)
- goto out;
+ goto out_unlock;
- dev = dev_get_by_index(sock_net(sk), sk->sk_bound_dev_if);
- if (!dev) {
- err = -ENODEV;
- goto out;
- }
+ err = -ENODEV;
+ dev = dev_get_by_index_rcu(sock_net(sk),
+ sk->sk_bound_dev_if);
+ if (!dev)
+ goto out_unlock;
}
/* ipv4 addr of the socket is invalid. Only the
err = -EADDRNOTAVAIL;
if (!ipv6_chk_addr(sock_net(sk), &addr->sin6_addr,
dev, 0)) {
- if (dev)
- dev_put(dev);
- goto out;
+ goto out_unlock;
}
}
- if (dev)
- dev_put(dev);
}
- inet->rcv_saddr = inet->saddr = v4addr;
+ inet->inet_rcv_saddr = inet->inet_saddr = v4addr;
ipv6_addr_copy(&np->rcv_saddr, &addr->sin6_addr);
if (!(addr_type & IPV6_ADDR_MULTICAST))
ipv6_addr_copy(&np->saddr, &addr->sin6_addr);
err = 0;
+out_unlock:
+ rcu_read_unlock();
out:
release_sock(sk);
return err;
static void rawv6_err(struct sock *sk, struct sk_buff *skb,
struct inet6_skb_parm *opt,
- int type, int code, int offset, __be32 info)
+ u8 type, u8 code, int offset, __be32 info)
{
struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
}
void raw6_icmp_error(struct sk_buff *skb, int nexthdr,
- int type, int code, int inner_offset, __be32 info)
+ u8 type, u8 code, int inner_offset, __be32 info)
{
struct sock *sk;
int hash;
read_lock(&raw_v6_hashinfo.lock);
sk = sk_head(&raw_v6_hashinfo.ht[hash]);
if (sk != NULL) {
- saddr = &ipv6_hdr(skb)->saddr;
- daddr = &ipv6_hdr(skb)->daddr;
+ /* Note: ipv6_hdr(skb) != skb->data */
+ struct ipv6hdr *ip6h = (struct ipv6hdr *)skb->data;
+ saddr = &ip6h->saddr;
+ daddr = &ip6h->daddr;
net = dev_net(skb->dev);
while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr,
skb_checksum_complete(skb)) {
atomic_inc(&sk->sk_drops);
kfree_skb(skb);
- return 0;
+ return NET_RX_DROP;
}
/* Charge it to the socket. */
- if (sock_queue_rcv_skb(sk,skb)<0) {
- atomic_inc(&sk->sk_drops);
+ if (sock_queue_rcv_skb(sk, skb) < 0) {
kfree_skb(skb);
- return 0;
+ return NET_RX_DROP;
}
return 0;
skb_network_header_len(skb));
if (!csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
- skb->len, inet->num, skb->csum))
+ skb->len, inet->inet_num, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
}
if (!skb_csum_unnecessary(skb))
skb->csum = ~csum_unfold(csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
&ipv6_hdr(skb)->daddr,
skb->len,
- inet->num, 0));
+ inet->inet_num, 0));
if (inet->hdrincl) {
if (skb_checksum_complete(skb)) {
atomic_inc(&sk->sk_drops);
kfree_skb(skb);
- return 0;
+ return NET_RX_DROP;
}
}
sin6->sin6_scope_id = IP6CB(skb)->iif;
}
- sock_recv_timestamp(msg, sk, skb);
+ sock_recv_ts_and_drops(msg, sk, skb);
if (np->rxopt.all)
datagram_recv_ctl(sk, msg, skb);
as some normal condition.
*/
err = (flags&MSG_DONTWAIT) ? -EAGAIN : -EHOSTUNREACH;
- atomic_inc(&sk->sk_drops);
goto out;
}
struct ipv6_pinfo *np = inet6_sk(sk);
struct ipv6hdr *iph;
struct sk_buff *skb;
- unsigned int hh_len;
int err;
if (length > rt->u.dst.dev->mtu) {
if (flags&MSG_PROBE)
goto out;
- hh_len = LL_RESERVED_SPACE(rt->u.dst.dev);
-
- skb = sock_alloc_send_skb(sk, length+hh_len+15,
- flags&MSG_DONTWAIT, &err);
+ skb = sock_alloc_send_skb(sk,
+ length + LL_ALLOCATED_SPACE(rt->u.dst.dev) + 15,
+ flags & MSG_DONTWAIT, &err);
if (skb == NULL)
goto error;
- skb_reserve(skb, hh_len);
+ skb_reserve(skb, LL_RESERVED_SPACE(rt->u.dst.dev));
skb->priority = sk->sk_priority;
skb->mark = sk->sk_mark;
- skb->dst = dst_clone(&rt->u.dst);
+ skb_dst_set(skb, dst_clone(&rt->u.dst));
skb_put(skb, length);
skb_reset_network_header(skb);
if (err)
goto error_fault;
- IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTREQUESTS);
+ IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
err = NF_HOOK(PF_INET6, NF_INET_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
dst_output);
if (err > 0)
- err = np->recverr ? net_xmit_errno(err) : 0;
+ err = net_xmit_errno(err);
if (err)
goto error;
out:
err = -EFAULT;
kfree_skb(skb);
error:
- IP6_INC_STATS(rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
+ IP6_INC_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUTDISCARDS);
+ if (err == -ENOBUFS && !np->recverr)
+ err = 0;
return err;
}
proto = ntohs(sin6->sin6_port);
if (!proto)
- proto = inet->num;
- else if (proto != inet->num)
+ proto = inet->inet_num;
+ else if (proto != inet->inet_num)
return(-EINVAL);
if (proto > 255)
if (sk->sk_state != TCP_ESTABLISHED)
return -EDESTADDRREQ;
- proto = inet->num;
+ proto = inet->inet_num;
daddr = &np->daddr;
fl.fl6_flowlabel = np->flow_label;
}
- if (ipv6_addr_any(daddr)) {
- /*
- * unspecified destination address
- * treated as error... is this correct ?
- */
- fl6_sock_release(flowlabel);
- return(-EINVAL);
- }
-
if (fl.oif == 0)
fl.oif = sk->sk_bound_dev_if;
memset(opt, 0, sizeof(struct ipv6_txoptions));
opt->tot_len = sizeof(struct ipv6_txoptions);
- err = datagram_send_ctl(msg, &fl, opt, &hlimit, &tclass);
+ err = datagram_send_ctl(sock_net(sk), msg, &fl, opt, &hlimit, &tclass);
if (err < 0) {
fl6_sock_release(flowlabel);
return err;
if (err)
goto out;
- ipv6_addr_copy(&fl.fl6_dst, daddr);
+ if (!ipv6_addr_any(daddr))
+ ipv6_addr_copy(&fl.fl6_dst, daddr);
+ else
+ fl.fl6_dst.s6_addr[15] = 0x1; /* :: means loopback (BSD'ism) */
if (ipv6_addr_any(&fl.fl6_src) && !ipv6_addr_any(&np->saddr))
ipv6_addr_copy(&fl.fl6_src, &np->saddr);
if (final_p)
ipv6_addr_copy(&fl.fl6_dst, final_p);
- if ((err = __xfrm_lookup(&dst, &fl, sk, XFRM_LOOKUP_WAIT)) < 0) {
+ err = __xfrm_lookup(sock_net(sk), &dst, &fl, sk, XFRM_LOOKUP_WAIT);
+ if (err < 0) {
if (err == -EREMOTE)
err = ip6_dst_blackhole(sk, &dst, &fl);
if (err < 0)
hlimit = ip6_dst_hoplimit(dst);
}
- if (tclass < 0) {
+ if (tclass < 0)
tclass = np->tclass;
- if (tclass < 0)
- tclass = 0;
- }
if (msg->msg_flags&MSG_CONFIRM)
goto do_confirm;
static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
struct raw6_sock *rp = raw6_sk(sk);
int val;
switch (optname) {
case IPV6_CHECKSUM:
+ if (inet_sk(sk)->inet_num == IPPROTO_ICMPV6 &&
+ level == IPPROTO_IPV6) {
+ /*
+ * RFC3542 tells that IPV6_CHECKSUM socket
+ * option in the IPPROTO_IPV6 level is not
+ * allowed on ICMPv6 sockets.
+ * If you want to set it, use IPPROTO_RAW
+ * level IPV6_CHECKSUM socket option
+ * (Linux extension).
+ */
+ return -EINVAL;
+ }
+
/* You may get strange result with a positive odd offset;
RFC2292bis agrees with me. */
if (val > 0 && (val&1))
}
static int rawv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
switch(level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
- if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+ if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval,
optlen);
#ifdef CONFIG_COMPAT
static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ char __user *optval, unsigned int optlen)
{
switch (level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
- if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+ if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
switch (optname) {
case IPV6_CHECKSUM:
+ /*
+ * We allow getsockopt() for IPPROTO_IPV6-level
+ * IPV6_CHECKSUM socket option on ICMPv6 sockets
+ * since RFC3542 is silent about it.
+ */
if (rp->checksum == 0)
val = -1;
else
break;
case SOL_ICMPV6:
- if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+ if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval,
optlen);
case SOL_RAW:
break;
case SOL_ICMPV6:
- if (inet_sk(sk)->num != IPPROTO_ICMPV6)
+ if (inet_sk(sk)->inet_num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval, optlen);
case SOL_IPV6:
switch(cmd) {
case SIOCOUTQ:
{
- int amount = atomic_read(&sk->sk_wmem_alloc);
+ int amount = sk_wmem_alloc_get(sk);
+
return put_user(amount, (int __user *)arg);
}
case SIOCINQ:
}
default:
+#ifdef CONFIG_IPV6_MROUTE
+ return ip6mr_ioctl(sk, cmd, (void __user *)arg);
+#else
return -ENOIOCTLCMD;
+#endif
}
}
static void rawv6_close(struct sock *sk, long timeout)
{
- if (inet_sk(sk)->num == IPPROTO_RAW)
- ip6_ra_control(sk, -1, NULL);
-
+ if (inet_sk(sk)->inet_num == IPPROTO_RAW)
+ ip6_ra_control(sk, -1);
+ ip6mr_sk_done(sk);
sk_common_release(sk);
}
+static void raw6_destroy(struct sock *sk)
+{
+ lock_sock(sk);
+ ip6_flush_pending_frames(sk);
+ release_sock(sk);
+
+ inet6_destroy_sock(sk);
+}
+
static int rawv6_init_sk(struct sock *sk)
{
struct raw6_sock *rp = raw6_sk(sk);
- switch (inet_sk(sk)->num) {
+ switch (inet_sk(sk)->inet_num) {
case IPPROTO_ICMPV6:
rp->checksum = 1;
rp->offset = 2;
.name = "RAWv6",
.owner = THIS_MODULE,
.close = rawv6_close,
+ .destroy = raw6_destroy,
.connect = ip6_datagram_connect,
.disconnect = udp_disconnect,
.ioctl = rawv6_ioctl,
.init = rawv6_init_sk,
- .destroy = inet6_destroy_sock,
.setsockopt = rawv6_setsockopt,
.getsockopt = rawv6_getsockopt,
.sendmsg = rawv6_sendmsg,
dest = &np->daddr;
src = &np->rcv_saddr;
destp = 0;
- srcp = inet_sk(sp)->num;
+ srcp = inet_sk(sp)->inet_num;
seq_printf(seq,
"%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
"%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], destp,
sp->sk_state,
- atomic_read(&sp->sk_wmem_alloc),
- atomic_read(&sp->sk_rmem_alloc),
+ sk_wmem_alloc_get(sp),
+ sk_rmem_alloc_get(sp),
0, 0L, 0,
sock_i_uid(sp), 0,
sock_i_ino(sp),
"local_address "
"remote_address "
"st tx_queue rx_queue tr tm->when retrnsmt"
- " uid timeout inode drops\n");
+ " uid timeout inode ref pointer drops\n");
else
raw6_sock_seq_show(seq, v, raw_seq_private(seq)->bucket);
return 0;
.release = seq_release_net,
};
-static int raw6_init_net(struct net *net)
+static int __net_init raw6_init_net(struct net *net)
{
if (!proc_net_fops_create(net, "raw6", S_IRUGO, &raw6_seq_fops))
return -ENOMEM;
return 0;
}
-static void raw6_exit_net(struct net *net)
+static void __net_exit raw6_exit_net(struct net *net)
{
proc_net_remove(net, "raw6");
}
.protocol = IPPROTO_IP, /* wild card */
.prot = &rawv6_prot,
.ops = &inet6_sockraw_ops,
- .capability = CAP_NET_RAW,
.no_check = UDP_CSUM_DEFAULT,
.flags = INET_PROTOSW_REUSE,
};
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff