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[DCCP]: Prepare the AF agnostic core for the introduction of DCCPv6

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Basically exports a similar set of functions as the one exported by
the non-AF specific TCP code.

In the process moved some non-AF specific code from dccp_v4_connect to
dccp_connect_init and moved the checksum verification from
dccp_invalid_packet to dccp_v4_rcv, so as to use it in dccp_v6_rcv
too.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo
2005-12-13 23:24:16 -08:00
committed by David S. Miller
parent 34ca686081
commit f21e68caa0
6 changed files with 114 additions and 52 deletions
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32
net/dccp/proto.c
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@@ -41,8 +41,12 @@
DEFINE_SNMP_STAT(struct dccp_mib, dccp_statistics) __read_mostly;
EXPORT_SYMBOL_GPL(dccp_statistics);
atomic_t dccp_orphan_count = ATOMIC_INIT(0);
EXPORT_SYMBOL_GPL(dccp_orphan_count);
static struct net_protocol dccp_protocol = {
.handler = dccp_v4_rcv,
.err_handler = dccp_v4_err,
@@ -149,6 +153,8 @@ int dccp_disconnect(struct sock *sk, int flags)
return err;
}
EXPORT_SYMBOL_GPL(dccp_disconnect);
/*
* Wait for a DCCP event.
*
@@ -156,8 +162,8 @@ int dccp_disconnect(struct sock *sk, int flags)
* take care of normal races (between the test and the event) and we don't
* go look at any of the socket buffers directly.
*/
static unsigned int dccp_poll(struct file *file, struct socket *sock,
poll_table *wait)
unsigned int dccp_poll(struct file *file, struct socket *sock,
poll_table *wait)
{
unsigned int mask;
struct sock *sk = sock->sk;
@@ -205,12 +211,16 @@ static unsigned int dccp_poll(struct file *file, struct socket *sock,
return mask;
}
EXPORT_SYMBOL_GPL(dccp_poll);
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
dccp_pr_debug("entry\n");
return -ENOIOCTLCMD;
}
EXPORT_SYMBOL_GPL(dccp_ioctl);
static int dccp_setsockopt_service(struct sock *sk, const u32 service,
char __user *optval, int optlen)
{
@@ -284,6 +294,8 @@ int dccp_setsockopt(struct sock *sk, int level, int optname,
return err;
}
EXPORT_SYMBOL_GPL(dccp_setsockopt);
static int dccp_getsockopt_service(struct sock *sk, int len,
u32 __user *optval,
int __user *optlen)
@@ -357,6 +369,8 @@ int dccp_getsockopt(struct sock *sk, int level, int optname,
return 0;
}
EXPORT_SYMBOL_GPL(dccp_getsockopt);
int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len)
{
@@ -413,6 +427,8 @@ out_discard:
goto out_release;
}
EXPORT_SYMBOL_GPL(dccp_sendmsg);
int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
size_t len, int nonblock, int flags, int *addr_len)
{
@@ -510,7 +526,9 @@ out:
return len;
}
static int inet_dccp_listen(struct socket *sock, int backlog)
EXPORT_SYMBOL_GPL(dccp_recvmsg);
int inet_dccp_listen(struct socket *sock, int backlog)
{
struct sock *sk = sock->sk;
unsigned char old_state;
@@ -546,6 +564,8 @@ out:
return err;
}
EXPORT_SYMBOL_GPL(inet_dccp_listen);
static const unsigned char dccp_new_state[] = {
/* current state: new state: action: */
[0] = DCCP_CLOSED,
@@ -651,11 +671,15 @@ adjudge_to_death:
sock_put(sk);
}
EXPORT_SYMBOL_GPL(dccp_close);
void dccp_shutdown(struct sock *sk, int how)
{
dccp_pr_debug("entry\n");
}
EXPORT_SYMBOL_GPL(dccp_shutdown);
static struct proto_ops inet_dccp_ops = {
.family = PF_INET,
.owner = THIS_MODULE,
@@ -763,6 +787,8 @@ MODULE_PARM_DESC(thash_entries, "Number of ehash buckets");
int dccp_debug;
module_param(dccp_debug, int, 0444);
MODULE_PARM_DESC(dccp_debug, "Enable debug messages");
EXPORT_SYMBOL_GPL(dccp_debug);
#endif
static int __init dccp_init(void)