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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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17
net/tls/tls_main.c
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@@ -450,7 +450,7 @@ static int tls_getsockopt(struct sock *sk, int level, int optname,
return do_tls_getsockopt(sk, optname, optval, optlen);
}
static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
static int do_tls_setsockopt_conf(struct sock *sk, sockptr_t optval,
unsigned int optlen, int tx)
{
struct tls_crypto_info *crypto_info;
@@ -460,7 +460,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
int rc = 0;
int conf;
if (!optval || (optlen < sizeof(*crypto_info))) {
if (sockptr_is_null(optval) || (optlen < sizeof(*crypto_info))) {
rc = -EINVAL;
goto out;
}
@@ -479,7 +479,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
goto out;
}
rc = copy_from_user(crypto_info, optval, sizeof(*crypto_info));
rc = copy_from_sockptr(crypto_info, optval, sizeof(*crypto_info));
if (rc) {
rc = -EFAULT;
goto err_crypto_info;
@@ -522,8 +522,9 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval,
goto err_crypto_info;
}
rc = copy_from_user(crypto_info + 1, optval + sizeof(*crypto_info),
optlen - sizeof(*crypto_info));
sockptr_advance(optval, sizeof(*crypto_info));
rc = copy_from_sockptr(crypto_info + 1, optval,
optlen - sizeof(*crypto_info));
if (rc) {
rc = -EFAULT;
goto err_crypto_info;
@@ -579,8 +580,8 @@ out:
return rc;
}
static int do_tls_setsockopt(struct sock *sk, int optname,
char __user *optval, unsigned int optlen)
static int do_tls_setsockopt(struct sock *sk, int optname, sockptr_t optval,
unsigned int optlen)
{
int rc = 0;
@@ -600,7 +601,7 @@ static int do_tls_setsockopt(struct sock *sk, int optname,
}
static int tls_setsockopt(struct sock *sk, int level, int optname,
char __user *optval, unsigned int optlen)
sockptr_t optval, unsigned int optlen)
{
struct tls_context *ctx = tls_get_ctx(sk);