* 2 of the License, or (at your option) any later version.
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/ipv6.h>
#include <linux/icmpv6.h>
#include <linux/init.h>
+#include <linux/skbuff.h>
#include <asm/uaccess.h>
#include <net/sock.h>
#include <net/udp.h>
#include <net/raw.h>
#include <net/inet_common.h>
+#include <net/tcp_states.h>
#include <net/ip6_checksum.h>
#include <net/xfrm.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6);
+DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6) __read_mostly;
/* Grrr, addr_type already calculated by caller, but I don't want
* to add some silly "cookie" argument to this method just for that.
next:;
}
result = best;
- for(;; result += UDP_HTABLE_SIZE) {
+ for(i = 0; i < (1 << 16) / UDP_HTABLE_SIZE; i++, result += UDP_HTABLE_SIZE) {
if (result > sysctl_local_port_range[1])
result = sysctl_local_port_range[0]
+ ((result - sysctl_local_port_range[0]) &
if (!udp_lport_inuse(result))
break;
}
+ if (i >= (1 << 16) / UDP_HTABLE_SIZE)
+ goto fail;
gotit:
udp_port_rover = snum = result;
} else {
read_lock(&udp_hash_lock);
sk_for_each(sk, node, &udp_hash[hnum & (UDP_HTABLE_SIZE - 1)]) {
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
if (inet->num == hnum && sk->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(sk);
score++;
}
if (!ipv6_addr_any(&np->rcv_saddr)) {
- if (ipv6_addr_cmp(&np->rcv_saddr, daddr))
+ if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
continue;
score++;
}
if (!ipv6_addr_any(&np->daddr)) {
- if (ipv6_addr_cmp(&np->daddr, saddr))
+ if (!ipv6_addr_equal(&np->daddr, saddr))
continue;
score++;
}
int noblock, int flags, int *addr_len)
{
struct ipv6_pinfo *np = inet6_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
struct sk_buff *skb;
size_t copied;
int err;
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
copied);
} else if (msg->msg_flags&MSG_TRUNC) {
- if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+ if (__skb_checksum_complete(skb))
goto csum_copy_err;
err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov,
copied);
sin6->sin6_flowinfo = 0;
sin6->sin6_scope_id = 0;
- if (skb->protocol == htons(ETH_P_IP)) {
- struct inet_opt *inet = inet_sk(sk);
-
+ if (skb->protocol == htons(ETH_P_IP))
ipv6_addr_set(&sin6->sin6_addr, 0, 0,
htonl(0xffff), skb->nh.iph->saddr);
- if (inet->cmsg_flags)
- ip_cmsg_recv(msg, skb);
- } else {
+ else {
ipv6_addr_copy(&sin6->sin6_addr, &skb->nh.ipv6h->saddr);
-
- if (np->rxopt.all)
- datagram_recv_ctl(sk, msg, skb);
if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)
sin6->sin6_scope_id = IP6CB(skb)->iif;
}
+
+ }
+ if (skb->protocol == htons(ETH_P_IP)) {
+ if (inet->cmsg_flags)
+ ip_cmsg_recv(msg, skb);
+ } else {
+ if (np->rxopt.all)
+ datagram_recv_ctl(sk, msg, skb);
}
err = copied;
return err;
csum_copy_err:
- /* Clear queue. */
- if (flags&MSG_PEEK) {
- int clear = 0;
- spin_lock_irq(&sk->sk_receive_queue.lock);
- if (skb == skb_peek(&sk->sk_receive_queue)) {
- __skb_unlink(skb, &sk->sk_receive_queue);
- clear = 1;
- }
- spin_unlock_irq(&sk->sk_receive_queue.lock);
- if (clear)
- kfree_skb(skb);
- }
-
- skb_free_datagram(sk, skb);
+ skb_kill_datagram(sk, skb, flags);
if (flags & MSG_DONTWAIT) {
UDP6_INC_STATS_USER(UDP_MIB_INERRORS);
return -1;
}
- if (skb->ip_summed != CHECKSUM_UNNECESSARY) {
- if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum))) {
- UDP6_INC_STATS_BH(UDP_MIB_INERRORS);
- kfree_skb(skb);
- return 0;
- }
- skb->ip_summed = CHECKSUM_UNNECESSARY;
+ if (skb_checksum_complete(skb)) {
+ UDP6_INC_STATS_BH(UDP_MIB_INERRORS);
+ kfree_skb(skb);
+ return 0;
}
if (sock_queue_rcv_skb(sk,skb)<0) {
unsigned short num = ntohs(loc_port);
sk_for_each_from(s, node) {
- struct inet_opt *inet = inet_sk(s);
+ struct inet_sock *inet = inet_sk(s);
if (inet->num == num && s->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(s);
continue;
}
if (!ipv6_addr_any(&np->daddr) &&
- ipv6_addr_cmp(&np->daddr, rmt_addr))
+ !ipv6_addr_equal(&np->daddr, rmt_addr))
continue;
if (s->sk_bound_dev_if && s->sk_bound_dev_if != dif)
continue;
if (!ipv6_addr_any(&np->rcv_saddr)) {
- if (!ipv6_addr_cmp(&np->rcv_saddr, loc_addr))
- return s;
- continue;
+ if (!ipv6_addr_equal(&np->rcv_saddr, loc_addr))
+ continue;
}
if(!inet6_mc_check(s, loc_addr, rmt_addr))
continue;
read_unlock(&udp_hash_lock);
}
-static int udpv6_rcv(struct sk_buff **pskb, unsigned int *nhoffp)
+static int udpv6_rcv(struct sk_buff **pskb)
{
struct sk_buff *skb = *pskb;
struct sock *sk;
/* RFC 2460 section 8.1 says that we SHOULD log
this error. Well, it is reasonable.
*/
- LIMIT_NETDEBUG(
- printk(KERN_INFO "IPv6: udp checksum is 0\n"));
+ LIMIT_NETDEBUG(KERN_INFO "IPv6: udp checksum is 0\n");
goto discard;
}
if (ulen < skb->len) {
- if (__pskb_trim(skb, ulen))
+ if (pskb_trim_rcsum(skb, ulen))
goto discard;
saddr = &skb->nh.ipv6h->saddr;
daddr = &skb->nh.ipv6h->daddr;
uh = skb->h.uh;
}
- if (skb->ip_summed==CHECKSUM_HW) {
+ if (skb->ip_summed == CHECKSUM_HW &&
+ !csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum))
skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, skb->csum)) {
- LIMIT_NETDEBUG(printk(KERN_DEBUG "udp v6 hw csum failure.\n"));
- skb->ip_summed = CHECKSUM_NONE;
- }
- }
+
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
skb->csum = ~csum_ipv6_magic(saddr, daddr, ulen, IPPROTO_UDP, 0);
if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb))
goto discard;
- if (skb->ip_summed != CHECKSUM_UNNECESSARY &&
- (unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum)))
+ if (skb_checksum_complete(skb))
goto discard;
UDP6_INC_STATS_BH(UDP_MIB_NOPORTS);
*/
static void udp_v6_flush_pending_frames(struct sock *sk)
{
- struct udp_opt *up = udp_sk(sk);
+ struct udp_sock *up = udp_sk(sk);
if (up->pending) {
up->len = 0;
* Sending
*/
-static int udp_v6_push_pending_frames(struct sock *sk, struct udp_opt *up)
+static int udp_v6_push_pending_frames(struct sock *sk, struct udp_sock *up)
{
struct sk_buff *skb;
struct udphdr *uh;
- struct inet_opt *inet = inet_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
struct flowi *fl = &inet->cork.fl;
int err = 0;
struct msghdr *msg, size_t len)
{
struct ipv6_txoptions opt_space;
- struct udp_opt *up = udp_sk(sk);
- struct inet_opt *inet = inet_sk(sk);
+ struct udp_sock *up = udp_sk(sk);
+ struct inet_sock *inet = inet_sk(sk);
struct ipv6_pinfo *np = inet6_sk(sk);
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) msg->msg_name;
struct in6_addr *daddr, *final_p = NULL, final;
int addr_len = msg->msg_namelen;
int ulen = len;
int hlimit = -1;
+ int tclass = -1;
int corkreq = up->corkflag || msg->msg_flags&MSG_MORE;
int err;
+ int connected = 0;
/* destination address check */
if (sin6) {
if (likely(up->pending)) {
if (unlikely(up->pending != AF_INET6)) {
release_sock(sk);
- return -EINVAL;
+ return -EAFNOSUPPORT;
}
dst = NULL;
goto do_append_data;
* sk->sk_dst_cache.
*/
if (sk->sk_state == TCP_ESTABLISHED &&
- !ipv6_addr_cmp(daddr, &np->daddr))
+ ipv6_addr_equal(daddr, &np->daddr))
daddr = &np->daddr;
if (addr_len >= sizeof(struct sockaddr_in6) &&
fl->fl_ip_dport = inet->dport;
daddr = &np->daddr;
fl->fl6_flowlabel = np->flow_label;
+ connected = 1;
}
if (!fl->oif)
memset(opt, 0, sizeof(struct ipv6_txoptions));
opt->tot_len = sizeof(*opt);
- err = datagram_send_ctl(msg, fl, opt, &hlimit);
+ err = datagram_send_ctl(msg, fl, opt, &hlimit, &tclass);
if (err < 0) {
fl6_sock_release(flowlabel);
return err;
}
if (!(opt->opt_nflen|opt->opt_flen))
opt = NULL;
+ connected = 0;
}
if (opt == NULL)
opt = np->opt;
if (flowlabel)
opt = fl6_merge_options(&opt_space, flowlabel, opt);
+ opt = ipv6_fixup_options(&opt_space, opt);
fl->proto = IPPROTO_UDP;
ipv6_addr_copy(&fl->fl6_dst, daddr);
ipv6_addr_copy(&final, &fl->fl6_dst);
ipv6_addr_copy(&fl->fl6_dst, rt0->addr);
final_p = &final;
+ connected = 0;
}
- if (!fl->oif && ipv6_addr_is_multicast(&fl->fl6_dst))
+ if (!fl->oif && ipv6_addr_is_multicast(&fl->fl6_dst)) {
fl->oif = np->mcast_oif;
+ connected = 0;
+ }
- err = ip6_dst_lookup(sk, &dst, fl);
+ err = ip6_sk_dst_lookup(sk, &dst, fl);
if (err)
goto out;
if (final_p)
ipv6_addr_copy(&fl->fl6_dst, final_p);
- if ((err = xfrm_lookup(&dst, fl, sk, 0)) < 0) {
- dst_release(dst);
+ if ((err = xfrm_lookup(&dst, fl, sk, 0)) < 0)
goto out;
- }
if (hlimit < 0) {
if (ipv6_addr_is_multicast(&fl->fl6_dst))
hlimit = np->hop_limit;
if (hlimit < 0)
hlimit = dst_metric(dst, RTAX_HOPLIMIT);
+ if (hlimit < 0)
+ hlimit = ipv6_get_hoplimit(dst->dev);
+ }
+
+ if (tclass < 0) {
+ tclass = np->tclass;
+ if (tclass < 0)
+ tclass = 0;
}
if (msg->msg_flags&MSG_CONFIRM)
/* ... which is an evident application bug. --ANK */
release_sock(sk);
- LIMIT_NETDEBUG(printk(KERN_DEBUG "udp cork app bug 2\n"));
+ LIMIT_NETDEBUG(KERN_DEBUG "udp cork app bug 2\n");
err = -EINVAL;
goto out;
}
do_append_data:
up->len += ulen;
- err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov, ulen, sizeof(struct udphdr),
- hlimit, opt, fl, (struct rt6_info*)dst,
- corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags);
+ err = ip6_append_data(sk, ip_generic_getfrag, msg->msg_iov, ulen,
+ sizeof(struct udphdr), hlimit, tclass, opt, fl,
+ (struct rt6_info*)dst,
+ corkreq ? msg->msg_flags|MSG_MORE : msg->msg_flags);
if (err)
udp_v6_flush_pending_frames(sk);
else if (!corkreq)
err = udp_v6_push_pending_frames(sk, up);
- if (dst)
- ip6_dst_store(sk, dst,
- !ipv6_addr_cmp(&fl->fl6_dst, &np->daddr) ?
- &np->daddr : NULL);
+ if (dst) {
+ if (connected) {
+ ip6_dst_store(sk, dst,
+ ipv6_addr_equal(&fl->fl6_dst, &np->daddr) ?
+ &np->daddr : NULL);
+ } else {
+ dst_release(dst);
+ }
+ }
+
if (err > 0)
err = np->recverr ? net_xmit_errno(err) : 0;
release_sock(sk);
/*
* Socket option code for UDP
*/
-static int udpv6_setsockopt(struct sock *sk, int level, int optname,
+static int do_udpv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
- struct udp_opt *up = udp_sk(sk);
+ struct udp_sock *up = udp_sk(sk);
int val;
int err = 0;
- if (level != SOL_UDP)
- return ipv6_setsockopt(sk, level, optname, optval, optlen);
-
if(optlen<sizeof(int))
return -EINVAL;
return err;
}
-static int udpv6_getsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int __user *optlen)
+static int udpv6_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int optlen)
{
- struct udp_opt *up = udp_sk(sk);
- int val, len;
+ if (level != SOL_UDP)
+ return ipv6_setsockopt(sk, level, optname, optval, optlen);
+ return do_udpv6_setsockopt(sk, level, optname, optval, optlen);
+}
+#ifdef CONFIG_COMPAT
+static int compat_udpv6_setsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int optlen)
+{
if (level != SOL_UDP)
- return ipv6_getsockopt(sk, level, optname, optval, optlen);
+ return compat_ipv6_setsockopt(sk, level, optname,
+ optval, optlen);
+ return do_udpv6_setsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
+static int do_udpv6_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ struct udp_sock *up = udp_sk(sk);
+ int val, len;
if(get_user(len,optlen))
return -EFAULT;
return 0;
}
+static int udpv6_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ if (level != SOL_UDP)
+ return ipv6_getsockopt(sk, level, optname, optval, optlen);
+ return do_udpv6_getsockopt(sk, level, optname, optval, optlen);
+}
+
+#ifdef CONFIG_COMPAT
+static int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
+ char __user *optval, int __user *optlen)
+{
+ if (level != SOL_UDP)
+ return compat_ipv6_getsockopt(sk, level, optname,
+ optval, optlen);
+ return do_udpv6_getsockopt(sk, level, optname, optval, optlen);
+}
+#endif
+
static struct inet6_protocol udpv6_protocol = {
.handler = udpv6_rcv,
.err_handler = udpv6_err,
static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket)
{
- struct inet_opt *inet = inet_sk(sp);
+ struct inet_sock *inet = inet_sk(sp);
struct ipv6_pinfo *np = inet6_sk(sp);
struct in6_addr *dest, *src;
__u16 destp, srcp;
/* ------------------------------------------------------------------------ */
struct proto udpv6_prot = {
- .name = "UDP",
- .close = udpv6_close,
- .connect = ip6_datagram_connect,
- .disconnect = udp_disconnect,
- .ioctl = udp_ioctl,
- .destroy = udpv6_destroy_sock,
- .setsockopt = udpv6_setsockopt,
- .getsockopt = udpv6_getsockopt,
- .sendmsg = udpv6_sendmsg,
- .recvmsg = udpv6_recvmsg,
- .backlog_rcv = udpv6_queue_rcv_skb,
- .hash = udp_v6_hash,
- .unhash = udp_v6_unhash,
- .get_port = udp_v6_get_port,
- .slab_obj_size = sizeof(struct udp6_sock),
+ .name = "UDPv6",
+ .owner = THIS_MODULE,
+ .close = udpv6_close,
+ .connect = ip6_datagram_connect,
+ .disconnect = udp_disconnect,
+ .ioctl = udp_ioctl,
+ .destroy = udpv6_destroy_sock,
+ .setsockopt = udpv6_setsockopt,
+ .getsockopt = udpv6_getsockopt,
+ .sendmsg = udpv6_sendmsg,
+ .recvmsg = udpv6_recvmsg,
+ .backlog_rcv = udpv6_queue_rcv_skb,
+ .hash = udp_v6_hash,
+ .unhash = udp_v6_unhash,
+ .get_port = udp_v6_get_port,
+ .obj_size = sizeof(struct udp6_sock),
+#ifdef CONFIG_COMPAT
+ .compat_setsockopt = compat_udpv6_setsockopt,
+ .compat_getsockopt = compat_udpv6_getsockopt,
+#endif
};
-extern struct proto_ops inet6_dgram_ops;
-
static struct inet_protosw udpv6_protosw = {
.type = SOCK_DGRAM,
.protocol = IPPROTO_UDP,
git://git.onelab.eu / linux-2.6.git / blobdiff