*
* Based on linux/ipv4/udp.c
*
- * $Id: udp.c,v 1.65 2002/02/01 22:01:04 davem Exp $
- *
* Fixes:
* Hideaki YOSHIFUJI : sin6_scope_id support
* YOSHIFUJI Hideaki @USAGI and: Support IPV6_V6ONLY socket option, which
int badness = -1;
read_lock(&udp_hash_lock);
- sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
+ sk_for_each(sk, node, &udptable[udp_hashfn(net, hnum)]) {
struct inet_sock *inet = inet_sk(sk);
- if (sk->sk_net == net && sk->sk_hash == hnum &&
+ if (net_eq(sock_net(sk), net) && sk->sk_hash == hnum &&
sk->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(sk);
int score = 0;
goto out_free;
if (!peeked)
- UDP6_INC_STATS_USER(UDP_MIB_INDATAGRAMS, is_udplite);
+ UDP6_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_INDATAGRAMS, is_udplite);
sock_recv_timestamp(msg, sk, skb);
csum_copy_err:
lock_sock(sk);
if (!skb_kill_datagram(sk, skb, flags))
- UDP6_INC_STATS_USER(UDP_MIB_INERRORS, is_udplite);
+ UDP6_INC_STATS_USER(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
release_sock(sk);
if (flags & MSG_DONTWAIT)
struct sock *sk;
int err;
- sk = __udp6_lib_lookup(skb->dev->nd_net, daddr, uh->dest,
+ sk = __udp6_lib_lookup(dev_net(skb->dev), daddr, uh->dest,
saddr, uh->source, inet6_iif(skb), udptable);
if (sk == NULL)
return;
if ((rc = sock_queue_rcv_skb(sk,skb)) < 0) {
/* Note that an ENOMEM error is charged twice */
- if (rc == -ENOMEM)
- UDP6_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, is_udplite);
+ if (rc == -ENOMEM) {
+ UDP6_INC_STATS_BH(sock_net(sk),
+ UDP_MIB_RCVBUFERRORS, is_udplite);
+ atomic_inc(&sk->sk_drops);
+ }
goto drop;
}
return 0;
drop:
- UDP6_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
+ UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
kfree_skb(skb);
return -1;
}
sk_for_each_from(s, node) {
struct inet_sock *inet = inet_sk(s);
- if (s->sk_net != sk->sk_net)
+ if (sock_net(s) != sock_net(sk))
continue;
if (s->sk_hash == num && s->sk_family == PF_INET6) {
* Note: called only from the BH handler context,
* so we don't need to lock the hashes.
*/
-static int __udp6_lib_mcast_deliver(struct sk_buff *skb, struct in6_addr *saddr,
- struct in6_addr *daddr, struct hlist_head udptable[])
+static int __udp6_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
+ struct in6_addr *saddr, struct in6_addr *daddr,
+ struct hlist_head udptable[])
{
struct sock *sk, *sk2;
const struct udphdr *uh = udp_hdr(skb);
int dif;
read_lock(&udp_hash_lock);
- sk = sk_head(&udptable[ntohs(uh->dest) & (UDP_HTABLE_SIZE - 1)]);
+ sk = sk_head(&udptable[udp_hashfn(net, ntohs(uh->dest))]);
dif = inet6_iif(skb);
sk = udp_v6_mcast_next(sk, uh->dest, daddr, uh->source, saddr, dif);
if (!sk) {
uh->source, saddr, dif))) {
struct sk_buff *buff = skb_clone(skb, GFP_ATOMIC);
if (buff) {
- bh_lock_sock_nested(sk2);
+ bh_lock_sock(sk2);
if (!sock_owned_by_user(sk2))
udpv6_queue_rcv_skb(sk2, buff);
else
bh_unlock_sock(sk2);
}
}
- bh_lock_sock_nested(sk);
+ bh_lock_sock(sk);
if (!sock_owned_by_user(sk))
udpv6_queue_rcv_skb(sk, skb);
else
struct net_device *dev = skb->dev;
struct in6_addr *saddr, *daddr;
u32 ulen = 0;
+ struct net *net = dev_net(skb->dev);
if (!pskb_may_pull(skb, sizeof(struct udphdr)))
goto short_packet;
* Multicast receive code
*/
if (ipv6_addr_is_multicast(daddr))
- return __udp6_lib_mcast_deliver(skb, saddr, daddr, udptable);
+ return __udp6_lib_mcast_deliver(net, skb,
+ saddr, daddr, udptable);
/* Unicast */
* check socket cache ... must talk to Alan about his plans
* for sock caches... i'll skip this for now.
*/
- sk = __udp6_lib_lookup(skb->dev->nd_net, saddr, uh->source,
+ sk = __udp6_lib_lookup(net, saddr, uh->source,
daddr, uh->dest, inet6_iif(skb), udptable);
if (sk == NULL) {
if (udp_lib_checksum_complete(skb))
goto discard;
- UDP6_INC_STATS_BH(UDP_MIB_NOPORTS, proto == IPPROTO_UDPLITE);
+ UDP6_INC_STATS_BH(net, UDP_MIB_NOPORTS,
+ proto == IPPROTO_UDPLITE);
icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_PORT_UNREACH, 0, dev);
/* deliver */
- bh_lock_sock_nested(sk);
+ bh_lock_sock(sk);
if (!sock_owned_by_user(sk))
udpv6_queue_rcv_skb(sk, skb);
else
ulen, skb->len);
discard:
- UDP6_INC_STATS_BH(UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
+ UDP6_INC_STATS_BH(net, UDP_MIB_INERRORS, proto == IPPROTO_UDPLITE);
kfree_skb(skb);
return 0;
}
{
struct udp_sock *up = udp_sk(sk);
- if (up->pending) {
+ if (up->pending == AF_INET)
+ udp_flush_pending_frames(sk);
+ else if (up->pending) {
up->len = 0;
up->pending = 0;
ip6_flush_pending_frames(sk);
up->len = 0;
up->pending = 0;
if (!err)
- UDP6_INC_STATS_USER(UDP_MIB_OUTDATAGRAMS, is_udplite);
+ UDP6_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_OUTDATAGRAMS, is_udplite);
return err;
}
memset(opt, 0, sizeof(struct ipv6_txoptions));
opt->tot_len = sizeof(*opt);
- 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;
opt = ipv6_fixup_options(&opt_space, opt);
fl.proto = sk->sk_protocol;
- 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);
fl.fl_ip_sport = inet->sport;
} else {
dst_release(dst);
}
+ dst = NULL;
}
if (err > 0)
err = np->recverr ? net_xmit_errno(err) : 0;
release_sock(sk);
out:
+ dst_release(dst);
fl6_sock_release(flowlabel);
if (!err)
return len;
* seems like overkill.
*/
if (err == -ENOBUFS || test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) {
- UDP6_INC_STATS_USER(UDP_MIB_SNDBUFERRORS, is_udplite);
+ UDP6_INC_STATS_USER(sock_net(sk),
+ UDP_MIB_SNDBUFERRORS, is_udplite);
}
return err;
goto out;
}
-int udpv6_destroy_sock(struct sock *sk)
+void udpv6_destroy_sock(struct sock *sk)
{
lock_sock(sk);
udp_v6_flush_pending_frames(sk);
release_sock(sk);
inet6_destroy_sock(sk);
-
- return 0;
}
/*
srcp = ntohs(inet->sport);
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\n",
+ "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n",
bucket,
src->s6_addr32[0], src->s6_addr32[1],
src->s6_addr32[2], src->s6_addr32[3], srcp,
0, 0L, 0,
sock_i_uid(sp), 0,
sock_i_ino(sp),
- atomic_read(&sp->sk_refcnt), sp);
+ atomic_read(&sp->sk_refcnt), sp,
+ atomic_read(&sp->sk_drops));
}
int udp6_seq_show(struct seq_file *seq, void *v)
"local_address "
"remote_address "
"st tx_queue rx_queue tr tm->when retrnsmt"
- " uid timeout inode\n");
+ " uid timeout inode ref pointer drops\n");
else
udp6_sock_seq_show(seq, v, ((struct udp_iter_state *)seq->private)->bucket);
return 0;
}
-static struct file_operations udp6_seq_fops;
static struct udp_seq_afinfo udp6_seq_afinfo = {
- .owner = THIS_MODULE,
.name = "udp6",
.family = AF_INET6,
.hashtable = udp_hash,
- .seq_show = udp6_seq_show,
- .seq_fops = &udp6_seq_fops,
+ .seq_fops = {
+ .owner = THIS_MODULE,
+ },
+ .seq_ops = {
+ .show = udp6_seq_show,
+ },
};
int udp6_proc_init(struct net *net)
/* ------------------------------------------------------------------------ */
-DEFINE_PROTO_INUSE(udpv6)
-
struct proto udpv6_prot = {
.name = "UDPv6",
.owner = THIS_MODULE,
.compat_setsockopt = compat_udpv6_setsockopt,
.compat_getsockopt = compat_udpv6_getsockopt,
#endif
- REF_PROTO_INUSE(udpv6)
};
static struct inet_protosw udpv6_protosw = {
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