/*
* UDP over IPv6
- * Linux INET6 implementation
+ * Linux INET6 implementation
*
* Authors:
- * Pedro Roque <roque@di.fc.ul.pt>
+ * Pedro Roque <roque@di.fc.ul.pt>
*
* Based on linux/ipv4/udp.c
*
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/sockios.h>
-#include <linux/sched.h>
#include <linux/net.h>
#include <linux/in6.h>
#include <linux/netdevice.h>
unsigned short hnum = ntohs(dport);
int badness = -1;
- read_lock(&udp_hash_lock);
+ read_lock(&udp_hash_lock);
sk_for_each(sk, node, &udptable[hnum & (UDP_HTABLE_SIZE - 1)]) {
struct inet_sock *inet = inet_sk(sk);
- if (inet->num == hnum && sk->sk_family == PF_INET6) {
+ if (sk->sk_hash == hnum && sk->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(sk);
int score = 0;
if (inet->dport) {
}
if (result)
sock_hold(result);
- read_unlock(&udp_hash_lock);
+ read_unlock(&udp_hash_lock);
return result;
}
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet_sock *inet = inet_sk(sk);
- struct sk_buff *skb;
+ struct sk_buff *skb;
size_t copied;
int err, copy_only, is_udplite = IS_UDPLITE(sk);
- if (addr_len)
- *addr_len=sizeof(struct sockaddr_in6);
-
+ if (addr_len)
+ *addr_len=sizeof(struct sockaddr_in6);
+
if (flags & MSG_ERRQUEUE)
return ipv6_recv_error(sk, msg, len);
if (!skb)
goto out;
- copied = skb->len - sizeof(struct udphdr);
- if (copied > len) {
- copied = len;
- msg->msg_flags |= MSG_TRUNC;
- }
+ copied = skb->len - sizeof(struct udphdr);
+ if (copied > len) {
+ copied = len;
+ msg->msg_flags |= MSG_TRUNC;
+ }
/*
* Decide whether to checksum and/or copy data.
/* Copy the address. */
if (msg->msg_name) {
struct sockaddr_in6 *sin6;
-
+
sin6 = (struct sockaddr_in6 *) msg->msg_name;
sin6->sin6_family = AF_INET6;
sin6->sin6_port = skb->h.uh->source;
} else {
if (np->rxopt.all)
datagram_recv_ctl(sk, msg, skb);
- }
+ }
err = copied;
if (flags & MSG_TRUNC)
static __inline__ void udpv6_err(struct sk_buff *skb,
struct inet6_skb_parm *opt, int type,
- int code, int offset, __u32 info )
+ int code, int offset, __be32 info )
{
return __udp6_lib_err(skb, opt, type, code, offset, info, udp_hash);
}
sk_for_each_from(s, node) {
struct inet_sock *inet = inet_sk(s);
- if (inet->num == num && s->sk_family == PF_INET6) {
+ if (s->sk_hash == num && s->sk_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(s);
if (inet->dport) {
if (inet->dport != rmt_port)
* 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[])
+ struct in6_addr *daddr, struct hlist_head udptable[])
{
struct sock *sk, *sk2;
const struct udphdr *uh = skb->h.uh;
}
if (skb->ip_summed == CHECKSUM_COMPLETE &&
!csum_ipv6_magic(&skb->nh.ipv6h->saddr, &skb->nh.ipv6h->daddr,
- skb->len, IPPROTO_UDP, skb->csum ))
+ skb->len, IPPROTO_UDP, skb->csum ))
skb->ip_summed = CHECKSUM_UNNECESSARY;
if (skb->ip_summed != CHECKSUM_UNNECESSARY)
skb->csum = ~csum_unfold(csum_ipv6_magic(&skb->nh.ipv6h->saddr,
&skb->nh.ipv6h->daddr,
- ulen, IPPROTO_UDP,
+ skb->len, IPPROTO_UDP,
0));
return (UDP_SKB_CB(skb)->partial_cov = 0);
{
struct sk_buff *skb = *pskb;
struct sock *sk;
- struct udphdr *uh;
+ struct udphdr *uh;
struct net_device *dev = skb->dev;
struct in6_addr *saddr, *daddr;
u32 ulen = 0;
goto discard;
}
- /*
- * Multicast receive code
+ /*
+ * Multicast receive code
*/
if (ipv6_addr_is_multicast(daddr))
return __udp6_lib_mcast_deliver(skb, saddr, daddr, udptable);
/* Unicast */
- /*
+ /*
* check socket cache ... must talk to Alan about his plans
* for sock caches... i'll skip this for now.
*/
kfree_skb(skb);
return(0);
}
-
+
/* deliver */
-
+
udpv6_queue_rcv_skb(sk, skb);
sock_put(sk);
return(0);
-short_packet:
+short_packet:
LIMIT_NETDEBUG(KERN_DEBUG "UDP%sv6: short packet: %d/%u\n",
is_udplite? "-Lite" : "", ulen, skb->len);
discard:
UDP6_INC_STATS_BH(UDP_MIB_INERRORS, is_udplite);
kfree_skb(skb);
- return(0);
+ return(0);
}
static __inline__ int udpv6_rcv(struct sk_buff **pskb)
up->len = 0;
up->pending = 0;
ip6_flush_pending_frames(sk);
- }
+ }
}
/*
* Sending
*/
-static int udp_v6_push_pending_frames(struct sock *sk, struct udp_sock *up)
+static int udp_v6_push_pending_frames(struct sock *sk)
{
struct sk_buff *skb;
struct udphdr *uh;
+ struct udp_sock *up = udp_sk(sk);
struct inet_sock *inet = inet_sk(sk);
struct flowi *fl = &inet->cork.fl;
int err = 0;
uh->check = csum_ipv6_magic(&fl->fl6_src, &fl->fl6_dst,
up->len, fl->proto, csum );
if (uh->check == 0)
- uh->check = -1;
+ uh->check = CSUM_MANGLED_0;
err = ip6_push_pending_frames(sk);
out:
if (sk->sk_state != TCP_ESTABLISHED)
return -EDESTADDRREQ;
daddr = &np->daddr;
- } else
+ } else
daddr = NULL;
if (daddr) {
*/
if (len > INT_MAX - sizeof(struct udphdr))
return -EMSGSIZE;
-
+
if (up->pending) {
/*
* There are pending frames.
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;
-
+
/* merge ip6_build_xmit from ip6_output */
if (opt && opt->srcrt) {
struct rt0_hdr *rt0 = (struct rt0_hdr *) opt->srcrt;
if (final_p)
ipv6_addr_copy(&fl.fl6_dst, final_p);
- if ((err = xfrm_lookup(&dst, &fl, sk, 0)) < 0)
+ if ((err = xfrm_lookup(&dst, &fl, sk, 1)) < 0)
goto out;
if (hlimit < 0) {
if (err)
udp_v6_flush_pending_frames(sk);
else if (!corkreq)
- err = udp_v6_push_pending_frames(sk, up);
+ err = udp_v6_push_pending_frames(sk);
else if (unlikely(skb_queue_empty(&sk->sk_write_queue)))
up->pending = 0;
/*
* Socket option code for UDP
*/
-static int do_udpv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
-{
- struct udp_sock *up = udp_sk(sk);
- int val;
- int err = 0;
-
- if(optlen<sizeof(int))
- return -EINVAL;
-
- if (get_user(val, (int __user *)optval))
- return -EFAULT;
-
- switch(optname) {
- case UDP_CORK:
- if (val != 0) {
- up->corkflag = 1;
- } else {
- up->corkflag = 0;
- lock_sock(sk);
- udp_v6_push_pending_frames(sk, up);
- release_sock(sk);
- }
- break;
- case UDP_ENCAP:
- switch (val) {
- case 0:
- up->encap_type = val;
- break;
- default:
- err = -ENOPROTOOPT;
- break;
- }
- break;
-
- case UDPLITE_SEND_CSCOV:
- if (!up->pcflag) /* Disable the option on UDP sockets */
- return -ENOPROTOOPT;
- if (val != 0 && val < 8) /* Illegal coverage: use default (8) */
- val = 8;
- up->pcslen = val;
- up->pcflag |= UDPLITE_SEND_CC;
- break;
-
- case UDPLITE_RECV_CSCOV:
- if (!up->pcflag) /* Disable the option on UDP sockets */
- return -ENOPROTOOPT;
- if (val != 0 && val < 8) /* Avoid silly minimal values. */
- val = 8;
- up->pcrlen = val;
- up->pcflag |= UDPLITE_RECV_CC;
- break;
-
- default:
- err = -ENOPROTOOPT;
- break;
- };
-
- return err;
-}
-
int udpv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
- return do_udpv6_setsockopt(sk, level, optname, optval, optlen);
+ return udp_lib_setsockopt(sk, level, optname, optval, optlen,
+ udp_v6_push_pending_frames);
return ipv6_setsockopt(sk, level, optname, optval, optlen);
}
char __user *optval, int optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
- return do_udpv6_setsockopt(sk, level, optname, optval, optlen);
+ return udp_lib_setsockopt(sk, level, optname, optval, optlen,
+ udp_v6_push_pending_frames);
return compat_ipv6_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;
-
- len = min_t(unsigned int, len, sizeof(int));
-
- if(len < 0)
- return -EINVAL;
-
- switch(optname) {
- case UDP_CORK:
- val = up->corkflag;
- break;
-
- case UDP_ENCAP:
- val = up->encap_type;
- break;
-
- case UDPLITE_SEND_CSCOV:
- val = up->pcslen;
- break;
-
- case UDPLITE_RECV_CSCOV:
- val = up->pcrlen;
- break;
-
- default:
- return -ENOPROTOOPT;
- };
-
- if(put_user(len, optlen))
- return -EFAULT;
- if(copy_to_user(optval, &val,len))
- return -EFAULT;
- return 0;
-}
-
int udpv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
- return do_udpv6_getsockopt(sk, level, optname, optval, optlen);
+ return udp_lib_getsockopt(sk, level, optname, optval, optlen);
return ipv6_getsockopt(sk, level, optname, optval, optlen);
}
char __user *optval, int __user *optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
- return do_udpv6_getsockopt(sk, level, optname, optval, optlen);
+ return udp_lib_getsockopt(sk, level, optname, optval, optlen);
return compat_ipv6_getsockopt(sk, level, optname, optval, optlen);
}
#endif
src->s6_addr32[2], src->s6_addr32[3], srcp,
dest->s6_addr32[0], dest->s6_addr32[1],
dest->s6_addr32[2], dest->s6_addr32[3], destp,
- sp->sk_state,
+ sp->sk_state,
atomic_read(&sp->sk_wmem_alloc),
atomic_read(&sp->sk_rmem_alloc),
0, 0L, 0,
projects / karo-tx-linux.git / blobdiff