summaryrefslogtreecommitdiffstats
path: root/net/ipv6
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/ipv6
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/ipv6')
-rw-r--r--net/ipv6/ipv6_sockglue.c10
-rw-r--r--net/ipv6/raw.c10
-rw-r--r--net/ipv6/udp.c6
-rw-r--r--net/ipv6/udp_impl.h4
4 files changed, 14 insertions, 16 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index dcd000a5a9b1..d2282f5c9760 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -980,8 +980,8 @@ e_inval:
return -EINVAL;
}
-int ipv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
+int ipv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
+ unsigned int optlen)
{
int err;
@@ -991,14 +991,12 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname,
if (level != SOL_IPV6)
return -ENOPROTOOPT;
- err = do_ipv6_setsockopt(sk, level, optname, USER_SOCKPTR(optval),
- optlen);
+ err = do_ipv6_setsockopt(sk, level, optname, optval, optlen);
#ifdef CONFIG_NETFILTER
/* we need to exclude all possible ENOPROTOOPTs except default case */
if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY &&
optname != IPV6_XFRM_POLICY)
- err = nf_setsockopt(sk, PF_INET6, optname, USER_SOCKPTR(optval),
- optlen);
+ err = nf_setsockopt(sk, PF_INET6, optname, optval, optlen);
#endif
return err;
}
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 594e01ad670a..874f01cd7aec 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -972,13 +972,13 @@ do_confirm:
}
static int rawv6_seticmpfilter(struct sock *sk, int level, int optname,
- char __user *optval, int optlen)
+ sockptr_t optval, int optlen)
{
switch (optname) {
case ICMPV6_FILTER:
if (optlen > sizeof(struct icmp6_filter))
optlen = sizeof(struct icmp6_filter);
- if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen))
+ if (copy_from_sockptr(&raw6_sk(sk)->filter, optval, optlen))
return -EFAULT;
return 0;
default:
@@ -1015,12 +1015,12 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname,
static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
struct raw6_sock *rp = raw6_sk(sk);
int val;
- if (get_user(val, (int __user *)optval))
+ if (copy_from_sockptr(&val, optval, sizeof(val)))
return -EFAULT;
switch (optname) {
@@ -1062,7 +1062,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname,
}
static int rawv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
+ sockptr_t optval, unsigned int optlen)
{
switch (level) {
case SOL_RAW:
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 2df1e6c9d7cb..15818e18655d 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1618,12 +1618,12 @@ void udpv6_destroy_sock(struct sock *sk)
/*
* Socket option code for UDP
*/
-int udpv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen)
+int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
+ unsigned int optlen)
{
if (level == SOL_UDP || level == SOL_UDPLITE)
return udp_lib_setsockopt(sk, level, optname,
- USER_SOCKPTR(optval), optlen,
+ optval, optlen,
udp_v6_push_pending_frames);
return ipv6_setsockopt(sk, level, optname, optval, optlen);
}
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index 30dfb6f1b762..b2fcc46c1630 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -17,8 +17,8 @@ void udp_v6_rehash(struct sock *sk);
int udpv6_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
-int udpv6_setsockopt(struct sock *sk, int level, int optname,
- char __user *optval, unsigned int optlen);
+int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
+ unsigned int optlen);
int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
int flags, int *addr_len);