xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: pass a sockptr_t into ->setsockopt

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

8
net/rxrpc/af_rxrpc.c
View File

@@ -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;

4
net/rxrpc/ar-internal.h
View File

@@ -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);

9
net/rxrpc/key.c
View File

@@ -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);