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[NET]: {get|set}sockopt compatibility layer

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This patch extends {get|set}sockopt compatibility layer in order to
move protocol specific parts to their place and avoid huge universal
net/compat.c file in the future.

Signed-off-by: Dmitry Mishin <dim@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Mishin
2006-03-20 22:45:21 -08:00
committed by David S. Miller
parent c750360938
commit 3fdadf7d27
29 changed files with 928 additions and 139 deletions
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51
net/ipv4/udp.c
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@@ -1207,16 +1207,13 @@ static int udp_destroy_sock(struct sock *sk)
/*
* Socket option code for UDP
*/
static int udp_setsockopt(struct sock *sk, int level, int optname,
static int do_udp_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 (level != SOL_UDP)
return ip_setsockopt(sk, level, optname, optval, optlen);
if(optlen<sizeof(int))
return -EINVAL;
@@ -1256,15 +1253,31 @@ static int udp_setsockopt(struct sock *sk, int level, int optname,
return err;
}
static int udp_getsockopt(struct sock *sk, int level, int optname,
static int udp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
if (level != SOL_UDP)
return ip_setsockopt(sk, level, optname, optval, optlen);
return do_udp_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_udp_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
if (level != SOL_UDP)
return compat_ip_setsockopt(sk, level,
optname, optval, optlen);
return do_udp_setsockopt(sk, level, optname, optval, optlen);
}
#endif
static int do_udp_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 (level != SOL_UDP)
return ip_getsockopt(sk, level, optname, optval, optlen);
if(get_user(len,optlen))
return -EFAULT;
@@ -1293,6 +1306,24 @@ static int udp_getsockopt(struct sock *sk, int level, int optname,
return 0;
}
static int udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level != SOL_UDP)
return ip_getsockopt(sk, level, optname, optval, optlen);
return do_udp_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
if (level != SOL_UDP)
return compat_ip_getsockopt(sk, level,
optname, optval, optlen);
return do_udp_getsockopt(sk, level, optname, optval, optlen);
}
#endif
/**
* udp_poll - wait for a UDP event.
* @file - file struct
@@ -1350,6 +1381,10 @@ struct proto udp_prot = {
.destroy = udp_destroy_sock,
.setsockopt = udp_setsockopt,
.getsockopt = udp_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udp_setsockopt,
.compat_getsockopt = compat_udp_getsockopt,
#endif
.sendmsg = udp_sendmsg,
.recvmsg = udp_recvmsg,
.sendpage = udp_sendpage,