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net: pass a sockptr_t into ->setsockopt

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Rework the remaining setsockopt code to pass a sockptr_t instead of a
plain user pointer.  This removes the last remaining set_fs(KERNEL_DS)
outside of architecture specific code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> [ieee802154]
Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig
2020-07-23 08:09:07 +02:00
committed by David S. Miller
parent d38d2b00ba
commit a7b75c5a8c
61 changed files with 246 additions and 258 deletions
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30
net/rds/af_rds.c
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@@ -290,8 +290,7 @@ static int rds_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
return 0;
}
static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval,
int len)
static int rds_cancel_sent_to(struct rds_sock *rs, sockptr_t optval, int len)
{
struct sockaddr_in6 sin6;
struct sockaddr_in sin;
@@ -308,14 +307,15 @@ static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval,
goto out;
} else if (len < sizeof(struct sockaddr_in6)) {
/* Assume IPv4 */
if (copy_from_user(&sin, optval, sizeof(struct sockaddr_in))) {
if (copy_from_sockptr(&sin, optval,
sizeof(struct sockaddr_in))) {
ret = -EFAULT;
goto out;
}
ipv6_addr_set_v4mapped(sin.sin_addr.s_addr, &sin6.sin6_addr);
sin6.sin6_port = sin.sin_port;
} else {
if (copy_from_user(&sin6, optval,
if (copy_from_sockptr(&sin6, optval,
sizeof(struct sockaddr_in6))) {
ret = -EFAULT;
goto out;
@@ -327,21 +327,20 @@ out:
return ret;
}
static int rds_set_bool_option(unsigned char *optvar, char __user *optval,
static int rds_set_bool_option(unsigned char *optvar, sockptr_t optval,
int optlen)
{
int value;
if (optlen < sizeof(int))
return -EINVAL;
if (get_user(value, (int __user *) optval))
if (copy_from_sockptr(&value, optval, sizeof(int)))
return -EFAULT;
*optvar = !!value;
return 0;
}
static int rds_cong_monitor(struct rds_sock *rs, char __user *optval,
int optlen)
static int rds_cong_monitor(struct rds_sock *rs, sockptr_t optval, int optlen)
{
int ret;
@@ -358,8 +357,7 @@ static int rds_cong_monitor(struct rds_sock *rs, char __user *optval,
return ret;
}
static int rds_set_transport(struct rds_sock *rs, char __user *optval,
int optlen)
static int rds_set_transport(struct rds_sock *rs, sockptr_t optval, int optlen)
{
int t_type;
@@ -369,7 +367,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval,
if (optlen != sizeof(int))
return -EINVAL;
if (copy_from_user(&t_type, (int __user *)optval, sizeof(t_type)))
if (copy_from_sockptr(&t_type, optval, sizeof(t_type)))
return -EFAULT;
if (t_type < 0 || t_type >= RDS_TRANS_COUNT)
@@ -380,7 +378,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval,
return rs->rs_transport ? 0 : -ENOPROTOOPT;
}
static int rds_enable_recvtstamp(struct sock *sk, char __user *optval,
static int rds_enable_recvtstamp(struct sock *sk, sockptr_t optval,
int optlen, int optname)
{
int val, valbool;
@@ -388,7 +386,7 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval,
if (optlen != sizeof(int))
return -EFAULT;
if (get_user(val, (int __user *)optval))
if (copy_from_sockptr(&val, optval, sizeof(int)))
return -EFAULT;
valbool = val ? 1 : 0;
@@ -404,7 +402,7 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval,
return 0;
}
static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval,
static int rds_recv_track_latency(struct rds_sock *rs, sockptr_t optval,
int optlen)
{
struct rds_rx_trace_so trace;
@@ -413,7 +411,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval,
if (optlen != sizeof(struct rds_rx_trace_so))
return -EFAULT;
if (copy_from_user(&trace, optval, sizeof(trace)))
if (copy_from_sockptr(&trace, optval, sizeof(trace)))
return -EFAULT;
if (trace.rx_traces > RDS_MSG_RX_DGRAM_TRACE_MAX)
@@ -432,7 +430,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval,
}
static int rds_setsockopt(struct socket *sock, int level, int optname,
char __user *optval, unsigned int optlen)
sockptr_t optval, unsigned int optlen)
{
struct rds_sock *rs = rds_sk_to_rs(sock->sk);
int ret;