diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-23 08:09:07 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-24 15:41:54 -0700 |
| commit | a7b75c5a8c41445f33efb663887ff5f5c3b4454b (patch) | |
| tree | a87e011ba3a0d76fda030b3a62080caa97fae1ef /net/rxrpc | |
| parent | d38d2b00ba64b3f2f30d70a7929000606d2c4509 (diff) | |
| download | linux-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.c | 8 | ||||
| -rw-r--r-- | net/rxrpc/ar-internal.h | 4 | ||||
| -rw-r--r-- | net/rxrpc/key.c | 9 |
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); |