summaryrefslogtreecommitdiffstats
path: root/net/rxrpc
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2020-07-23 08:09:07 +0200
committerDavid S. Miller <davem@davemloft.net>2020-07-24 15:41:54 -0700
commita7b75c5a8c41445f33efb663887ff5f5c3b4454b (patch)
treea87e011ba3a0d76fda030b3a62080caa97fae1ef /net/rxrpc
parentd38d2b00ba64b3f2f30d70a7929000606d2c4509 (diff)
downloadlinux-a7b75c5a8c41445f33efb663887ff5f5c3b4454b.tar.bz2
net: pass a sockptr_t into ->setsockopt
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>
Diffstat (limited to 'net/rxrpc')
-rw-r--r--net/rxrpc/af_rxrpc.c8
-rw-r--r--net/rxrpc/ar-internal.h4
-rw-r--r--net/rxrpc/key.c9
3 files changed, 10 insertions, 11 deletions
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index cd7d0d204c74..e6725a6de015 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -588,7 +588,7 @@ EXPORT_SYMBOL(rxrpc_sock_set_min_security_level);
* set RxRPC socket options
*/
static int rxrpc_setsockopt(struct socket *sock, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
unsigned int min_sec_level;
@@ -639,8 +639,8 @@ static int rxrpc_setsockopt(struct socket *sock, int level, int optname,
ret = -EISCONN;
if (rx->sk.sk_state != RXRPC_UNBOUND)
goto error;
- ret = get_user(min_sec_level,
- (unsigned int __user *) optval);
+ ret = copy_from_sockptr(&min_sec_level, optval,
+ sizeof(unsigned int));
if (ret < 0)
goto error;
ret = -EINVAL;
@@ -658,7 +658,7 @@ static int rxrpc_setsockopt(struct socket *sock, int level, int optname,
if (rx->sk.sk_state != RXRPC_SERVER_BOUND2)
goto error;
ret = -EFAULT;
- if (copy_from_user(service_upgrade, optval,
+ if (copy_from_sockptr(service_upgrade, optval,
sizeof(service_upgrade)) != 0)
goto error;
ret = -EINVAL;
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 9a2139ebd67d..6d29a3603a3e 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -909,8 +909,8 @@ extern const struct rxrpc_security rxrpc_no_security;
extern struct key_type key_type_rxrpc;
extern struct key_type key_type_rxrpc_s;
-int rxrpc_request_key(struct rxrpc_sock *, char __user *, int);
-int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int);
+int rxrpc_request_key(struct rxrpc_sock *, sockptr_t , int);
+int rxrpc_server_keyring(struct rxrpc_sock *, sockptr_t, int);
int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time64_t,
u32);
diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c
index 0c98313dd7a8..94c3df392651 100644
--- a/net/rxrpc/key.c
+++ b/net/rxrpc/key.c
@@ -896,7 +896,7 @@ static void rxrpc_describe(const struct key *key, struct seq_file *m)
/*
* grab the security key for a socket
*/
-int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen)
+int rxrpc_request_key(struct rxrpc_sock *rx, sockptr_t optval, int optlen)
{
struct key *key;
char *description;
@@ -906,7 +906,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen)
if (optlen <= 0 || optlen > PAGE_SIZE - 1)
return -EINVAL;
- description = memdup_user_nul(optval, optlen);
+ description = memdup_sockptr_nul(optval, optlen);
if (IS_ERR(description))
return PTR_ERR(description);
@@ -926,8 +926,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen)
/*
* grab the security keyring for a server socket
*/
-int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval,
- int optlen)
+int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen)
{
struct key *key;
char *description;
@@ -937,7 +936,7 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval,
if (optlen <= 0 || optlen > PAGE_SIZE - 1)
return -EINVAL;
- description = memdup_user_nul(optval, optlen);
+ description = memdup_sockptr_nul(optval, optlen);
if (IS_ERR(description))
return PTR_ERR(description);