diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-23 08:08:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-24 15:41:54 -0700 |
| commit | b43c6153132c92745317f92174af84f57b160b76 (patch) | |
| tree | db2fdec6c3272519fc3fc7291e7733fa56dece40 /net/ipv6 | |
| parent | 89654c5fcd511d9fe26ec376f5e855581aa44802 (diff) | |
| download | lwn-b43c6153132c92745317f92174af84f57b160b76.tar.gz lwn-b43c6153132c92745317f92174af84f57b160b76.zip | |
net/ipv6: switch ip6_mroute_setsockopt 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>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/ip6mr.c | 17 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 3 |
2 files changed, 11 insertions, 9 deletions
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 1f4d20e97c07..06b0d2c329b9 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -1629,7 +1629,8 @@ EXPORT_SYMBOL(mroute6_is_socket); * MOSPF/PIM router set up we can clean this up. */ -int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsigned int optlen) +int ip6_mroute_setsockopt(struct sock *sk, int optname, sockptr_t optval, + unsigned int optlen) { int ret, parent = 0; struct mif6ctl vif; @@ -1665,7 +1666,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns case MRT6_ADD_MIF: if (optlen < sizeof(vif)) return -EINVAL; - if (copy_from_user(&vif, optval, sizeof(vif))) + if (copy_from_sockptr(&vif, optval, sizeof(vif))) return -EFAULT; if (vif.mif6c_mifi >= MAXMIFS) return -ENFILE; @@ -1678,7 +1679,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns case MRT6_DEL_MIF: if (optlen < sizeof(mifi_t)) return -EINVAL; - if (copy_from_user(&mifi, optval, sizeof(mifi_t))) + if (copy_from_sockptr(&mifi, optval, sizeof(mifi_t))) return -EFAULT; rtnl_lock(); ret = mif6_delete(mrt, mifi, 0, NULL); @@ -1697,7 +1698,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns case MRT6_DEL_MFC_PROXY: if (optlen < sizeof(mfc)) return -EINVAL; - if (copy_from_user(&mfc, optval, sizeof(mfc))) + if (copy_from_sockptr(&mfc, optval, sizeof(mfc))) return -EFAULT; if (parent == 0) parent = mfc.mf6cc_parent; @@ -1718,7 +1719,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns if (optlen != sizeof(flags)) return -EINVAL; - if (get_user(flags, (int __user *)optval)) + if (copy_from_sockptr(&flags, optval, sizeof(flags))) return -EFAULT; rtnl_lock(); mroute_clean_tables(mrt, flags); @@ -1735,7 +1736,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns if (optlen != sizeof(v)) return -EINVAL; - if (get_user(v, (int __user *)optval)) + if (copy_from_sockptr(&v, optval, sizeof(v))) return -EFAULT; mrt->mroute_do_assert = v; return 0; @@ -1748,7 +1749,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns if (optlen != sizeof(v)) return -EINVAL; - if (get_user(v, (int __user *)optval)) + if (copy_from_sockptr(&v, optval, sizeof(v))) return -EFAULT; v = !!v; rtnl_lock(); @@ -1769,7 +1770,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns if (optlen != sizeof(u32)) return -EINVAL; - if (get_user(v, (u32 __user *)optval)) + if (copy_from_sockptr(&v, optval, sizeof(v))) return -EFAULT; /* "pim6reg%u" should not exceed 16 bytes (IFNAMSIZ) */ if (v != RT_TABLE_DEFAULT && v >= 100000000) diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 85892b35cff7..119dfaf5f4bb 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -337,7 +337,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, valbool = (val != 0); if (ip6_mroute_opt(optname)) - return ip6_mroute_setsockopt(sk, optname, optval, optlen); + return ip6_mroute_setsockopt(sk, optname, USER_SOCKPTR(optval), + optlen); if (needs_rtnl) rtnl_lock(); |