hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

net/tcp: switch ->md5_parse to sockptr_t 

Pass a sockptr_t to prepare for set_fs-less handling of the kernel
pointer from bpf-cgroup.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Christoph Hellwig 2020-07-23 08:09:05 +02:00 committed by David S. Miller
parent 91ac1ccaff
commit d4c19c4914
4 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/tcp.h
View File

@ -2002,7 +2002,7 @@ struct tcp_sock_af_ops {
const struct sk_buff *skb);
int (*md5_parse)(struct sock *sk,
int optname,
char __user *optval,
sockptr_t optval,
int optlen);
#endif
};

3
net/ipv4/tcp.c
View File

@ -3249,7 +3249,8 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
#ifdef CONFIG_TCP_MD5SIG
case TCP_MD5SIG:
case TCP_MD5SIG_EXT:
err = tp->af_specific->md5_parse(sk, optname, optval, optlen);
err = tp->af_specific->md5_parse(sk, optname,
USER_SOCKPTR(optval), optlen);
break;
#endif
case TCP_USER_TIMEOUT:

4
net/ipv4/tcp_ipv4.c
View File

@ -1195,7 +1195,7 @@ static void tcp_clear_md5_list(struct sock *sk)
}
static int tcp_v4_parse_md5_keys(struct sock *sk, int optname,
char __user *optval, int optlen)
sockptr_t optval, int optlen)
{
struct tcp_md5sig cmd;
struct sockaddr_in *sin = (struct sockaddr_in *)&cmd.tcpm_addr;
@ -1206,7 +1206,7 @@ static int tcp_v4_parse_md5_keys(struct sock *sk, int optname,
if (optlen < sizeof(cmd))
return -EINVAL;
if (copy_from_user(&cmd, optval, sizeof(cmd)))
if (copy_from_sockptr(&cmd, optval, sizeof(cmd)))
return -EFAULT;
if (sin->sin_family != AF_INET)

4
net/ipv6/tcp_ipv6.c
View File

@ -567,7 +567,7 @@ static struct tcp_md5sig_key *tcp_v6_md5_lookup(const struct sock *sk,
}
static int tcp_v6_parse_md5_keys(struct sock *sk, int optname,
char __user *optval, int optlen)
sockptr_t optval, int optlen)
{
struct tcp_md5sig cmd;
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&cmd.tcpm_addr;
@ -577,7 +577,7 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, int optname,
if (optlen < sizeof(cmd))
return -EINVAL;
if (copy_from_user(&cmd, optval, sizeof(cmd)))
if (copy_from_sockptr(&cmd, optval, sizeof(cmd)))
return -EFAULT;
if (sin6->sin6_family != AF_INET6)