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

Browse source 
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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Dmitry Mishin 2006-03-20 22:45:21 -08:00 • committed by David S. Miller
commit 3fdadf7d27
29 changed files with 928 additions and 139 deletions
Download patch file Download diff file Expand all files Collapse all files

12
net/ipv6/af_inet6.c
View file

@ -470,6 +470,10 @@ const struct proto_ops inet6_stream_ops = {
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */
.getsockopt = sock_common_getsockopt, /* ok */
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
.sendmsg = inet_sendmsg, /* ok */
.recvmsg = sock_common_recvmsg, /* ok */
.mmap = sock_no_mmap,
@ -491,6 +495,10 @@ const struct proto_ops inet6_dgram_ops = {
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */
.getsockopt = sock_common_getsockopt, /* ok */
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
.sendmsg = inet_sendmsg, /* ok */
.recvmsg = sock_common_recvmsg, /* ok */
.mmap = sock_no_mmap,
@ -519,6 +527,10 @@ static const struct proto_ops inet6_sockraw_ops = {
.shutdown = inet_shutdown, /* ok */
.setsockopt = sock_common_setsockopt, /* ok */
.getsockopt = sock_common_getsockopt, /* ok */
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_sock_common_setsockopt,
.compat_getsockopt = compat_sock_common_getsockopt,
#endif
.sendmsg = inet_sendmsg, /* ok */
.recvmsg = sock_common_recvmsg, /* ok */
.mmap = sock_no_mmap,

163
net/ipv6/ipv6_sockglue.c
View file

@ -109,19 +109,13 @@ int ip6_ra_control(struct sock *sk, int sel, void (*destructor)(struct sock *))
return 0;
}
int ipv6_setsockopt(struct sock *sk, int level, int optname,
static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
struct ipv6_pinfo *np = inet6_sk(sk);
int val, valbool;
int retv = -ENOPROTOOPT;
if (level == SOL_IP && sk->sk_type != SOCK_RAW)
return udp_prot.setsockopt(sk, level, optname, optval, optlen);
if(level!=SOL_IPV6)
goto out;
if (optval == NULL)
val=0;
else if (get_user(val, (int __user *) optval))
@ -613,17 +607,9 @@ done:
retv = xfrm_user_policy(sk, optname, optval, optlen);
break;
#ifdef CONFIG_NETFILTER
default:
retv = nf_setsockopt(sk, PF_INET6, optname, optval,
optlen);
break;
#endif
}
release_sock(sk);
out:
return retv;
e_inval:
@ -631,6 +617,65 @@ e_inval:
return -EINVAL;
}
int ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW)
return udp_prot.setsockopt(sk, level, optname, optval, optlen);
if (level != SOL_IPV6)
return -ENOPROTOOPT;
err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
optname != IPV6_XFRM_POLICY) {
lock_sock(sk);
err = nf_setsockopt(sk, PF_INET6, optname, optval,
optlen);
release_sock(sk);
}
#endif
return err;
}
#ifdef CONFIG_COMPAT
int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
if (udp_prot.compat_setsockopt)
return udp_prot.compat_setsockopt(sk, level,
optname, optval, optlen);
else
return udp_prot.setsockopt(sk, level,
optname, optval, optlen);
}
if (level != SOL_IPV6)
return -ENOPROTOOPT;
err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
optname != IPV6_XFRM_POLICY) {
lock_sock(sk);
err = compat_nf_setsockopt(sk, PF_INET6, optname, optval,
optlen);
release_sock(sk);
}
#endif
return err;
}
#endif
static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
char __user *optval, int len)
{
@ -642,17 +687,13 @@ static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_opt_hdr *hdr,
return len;
}
int ipv6_getsockopt(struct sock *sk, int level, int optname,
static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
struct ipv6_pinfo *np = inet6_sk(sk);
int len;
int val;
if (level == SOL_IP && sk->sk_type != SOCK_RAW)
return udp_prot.getsockopt(sk, level, optname, optval, optlen);
if(level!=SOL_IPV6)
return -ENOPROTOOPT;
if (get_user(len, optlen))
return -EFAULT;
switch (optname) {
@ -842,17 +883,7 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
break;
default:
#ifdef CONFIG_NETFILTER
lock_sock(sk);
val = nf_getsockopt(sk, PF_INET6, optname, optval,
&len);
release_sock(sk);
if (val >= 0)
val = put_user(len, optlen);
return val;
#else
return -EINVAL;
#endif
}
len = min_t(unsigned int, sizeof(int), len);
if(put_user(len, optlen))
@ -862,6 +893,78 @@ int ipv6_getsockopt(struct sock *sk, int level, int optname,
return 0;
}
int ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW)
return udp_prot.getsockopt(sk, level, optname, optval, optlen);
if(level != SOL_IPV6)
return -ENOPROTOOPT;
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible EINVALs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_ADDRFORM &&
optname != MCAST_MSFILTER) {
int len;
if (get_user(len, optlen))
return -EFAULT;
lock_sock(sk);
err = nf_getsockopt(sk, PF_INET6, optname, optval,
&len);
release_sock(sk);
if (err >= 0)
err = put_user(len, optlen);
}
#endif
return err;
}
#ifdef CONFIG_COMPAT
int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
int err;
if (level == SOL_IP && sk->sk_type != SOCK_RAW) {
if (udp_prot.compat_getsockopt)
return udp_prot.compat_getsockopt(sk, level,
optname, optval, optlen);
else
return udp_prot.getsockopt(sk, level,
optname, optval, optlen);
}
if(level != SOL_IPV6)
return -ENOPROTOOPT;
err = do_ipv6_getsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible EINVALs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_ADDRFORM &&
optname != MCAST_MSFILTER) {
int len;
if (get_user(len, optlen))
return -EFAULT;
lock_sock(sk);
err = compat_nf_getsockopt(sk, PF_INET6, optname, optval,
&len);
release_sock(sk);
if (err >= 0)
err = put_user(len, optlen);
}
#endif
return err;
}
#endif
void __init ipv6_packet_init(void)
{
dev_add_pack(&ipv6_packet_type);

4
net/ipv6/ipv6_syms.c
View file

@ -18,6 +18,10 @@ EXPORT_SYMBOL(ip6_route_output);
EXPORT_SYMBOL(addrconf_lock);
EXPORT_SYMBOL(ipv6_setsockopt);
EXPORT_SYMBOL(ipv6_getsockopt);
#ifdef CONFIG_COMPAT
EXPORT_SYMBOL(compat_ipv6_setsockopt);
EXPORT_SYMBOL(compat_ipv6_getsockopt);
#endif
EXPORT_SYMBOL(inet6_register_protosw);
EXPORT_SYMBOL(inet6_unregister_protosw);
EXPORT_SYMBOL(inet6_add_protocol);

112
net/ipv6/raw.c
View file

@ -859,29 +859,12 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
}
static int rawv6_setsockopt(struct sock *sk, int level, int optname,
static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
struct raw6_sock *rp = raw6_sk(sk);
int val;
switch(level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
if (inet_sk(sk)->num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval,
optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return ipv6_setsockopt(sk, level, optname, optval,
optlen);
};
if (get_user(val, (int __user *)optval))
return -EFAULT;
@ -906,12 +889,9 @@ static int rawv6_setsockopt(struct sock *sk, int level, int optname,
}
}
static int rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
static int rawv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
struct raw6_sock *rp = raw6_sk(sk);
int val, len;
switch(level) {
case SOL_RAW:
break;
@ -919,15 +899,47 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
case SOL_ICMPV6:
if (inet_sk(sk)->num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval,
return rawv6_seticmpfilter(sk, level, optname, optval,
optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return ipv6_getsockopt(sk, level, optname, optval,
return ipv6_setsockopt(sk, level, optname, optval,
optlen);
};
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_rawv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
switch(level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
if (inet_sk(sk)->num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_seticmpfilter(sk, level, optname, optval,
optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return compat_ipv6_setsockopt(sk, level,
optname, optval, optlen);
};
return do_rawv6_setsockopt(sk, level, optname, optval, optlen);
}
#endif
static int do_rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
struct raw6_sock *rp = raw6_sk(sk);
int val, len;
if (get_user(len,optlen))
return -EFAULT;
@ -953,6 +965,52 @@ static int rawv6_getsockopt(struct sock *sk, int level, int optname,
return 0;
}
static int rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
switch(level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
if (inet_sk(sk)->num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval,
optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return ipv6_getsockopt(sk, level, optname, optval,
optlen);
};
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#ifdef CONFIG_COMPAT
static int compat_rawv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
{
switch(level) {
case SOL_RAW:
break;
case SOL_ICMPV6:
if (inet_sk(sk)->num != IPPROTO_ICMPV6)
return -EOPNOTSUPP;
return rawv6_geticmpfilter(sk, level, optname, optval,
optlen);
case SOL_IPV6:
if (optname == IPV6_CHECKSUM)
break;
default:
return compat_ipv6_getsockopt(sk, level,
optname, optval, optlen);
};
return do_rawv6_getsockopt(sk, level, optname, optval, optlen);
}
#endif
static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
{
switch(cmd) {
@ -1008,6 +1066,10 @@ struct proto rawv6_prot = {
.destroy = inet6_destroy_sock,
.setsockopt = rawv6_setsockopt,
.getsockopt = rawv6_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_rawv6_setsockopt,
.compat_getsockopt = compat_rawv6_getsockopt,
#endif
.sendmsg = rawv6_sendmsg,
.recvmsg = rawv6_recvmsg,
.bind = rawv6_bind,

12
net/ipv6/tcp_ipv6.c
View file

@ -1308,6 +1308,10 @@ static struct inet_connection_sock_af_ops ipv6_specific = {
.setsockopt = ipv6_setsockopt,
.getsockopt = ipv6_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6)
};
@ -1327,6 +1331,10 @@ static struct inet_connection_sock_af_ops ipv6_mapped = {
.setsockopt = ipv6_setsockopt,
.getsockopt = ipv6_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_ipv6_setsockopt,
.compat_getsockopt = compat_ipv6_getsockopt,
#endif
.addr2sockaddr = inet6_csk_addr2sockaddr,
.sockaddr_len = sizeof(struct sockaddr_in6)
};
@ -1566,6 +1574,10 @@ struct proto tcpv6_prot = {
.shutdown = tcp_shutdown,
.setsockopt = tcp_setsockopt,
.getsockopt = tcp_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_tcp_setsockopt,
.compat_getsockopt = compat_tcp_getsockopt,
#endif
.sendmsg = tcp_sendmsg,
.recvmsg = tcp_recvmsg,
.backlog_rcv = tcp_v6_do_rcv,

52
net/ipv6/udp.c
View file

@ -880,16 +880,13 @@ static int udpv6_destroy_sock(struct 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_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;
@ -927,15 +924,31 @@ static int udpv6_setsockopt(struct sock *sk, int level, int optname,
return err;
}
static int udpv6_getsockopt(struct sock *sk, int level, int optname,
static int udpv6_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, int optlen)
{
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 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 (level != SOL_UDP)
return ipv6_getsockopt(sk, level, optname, optval, optlen);
if(get_user(len,optlen))
return -EFAULT;
@ -964,6 +977,25 @@ static int udpv6_getsockopt(struct sock *sk, int level, int optname,
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,
@ -1046,6 +1078,10 @@ struct proto udpv6_prot = {
.destroy = udpv6_destroy_sock,
.setsockopt = udpv6_setsockopt,
.getsockopt = udpv6_getsockopt,
#ifdef CONFIG_COMPAT
.compat_setsockopt = compat_udpv6_setsockopt,
.compat_getsockopt = compat_udpv6_getsockopt,
#endif
.sendmsg = udpv6_sendmsg,
.recvmsg = udpv6_recvmsg,
.backlog_rcv = udpv6_queue_rcv_skb,