diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-23 08:08:54 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-24 15:41:54 -0700 |
| commit | c2f12630c60ff33a9cafd221646053fc10ec59b6 (patch) | |
| tree | 13a34d0e37c35537253ea052d60de462b17c0f0a /net/ipv6 | |
| parent | ab214d1bf8c7ef1ed7af803a72491cb29edfa8f5 (diff) | |
| download | lwn-c2f12630c60ff33a9cafd221646053fc10ec59b6.tar.gz lwn-c2f12630c60ff33a9cafd221646053fc10ec59b6.zip | |
netfilter: switch nf_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/ipv6_sockglue.c | 3 | ||||
| -rw-r--r-- | net/ipv6/netfilter/ip6_tables.c | 24 |
2 files changed, 14 insertions, 13 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 56a74707c617..85892b35cff7 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -996,7 +996,8 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, /* 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, optval, optlen); + err = nf_setsockopt(sk, PF_INET6, optname, USER_SOCKPTR(optval), + optlen); #endif return err; } diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index a787aba30e2d..1d52957a413f 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -1119,7 +1119,7 @@ __do_replace(struct net *net, const char *name, unsigned int valid_hooks, } static int -do_replace(struct net *net, const void __user *user, unsigned int len) +do_replace(struct net *net, sockptr_t arg, unsigned int len) { int ret; struct ip6t_replace tmp; @@ -1127,7 +1127,7 @@ do_replace(struct net *net, const void __user *user, unsigned int len) void *loc_cpu_entry; struct ip6t_entry *iter; - if (copy_from_user(&tmp, user, sizeof(tmp)) != 0) + if (copy_from_sockptr(&tmp, arg, sizeof(tmp)) != 0) return -EFAULT; /* overflow check */ @@ -1143,8 +1143,8 @@ do_replace(struct net *net, const void __user *user, unsigned int len) return -ENOMEM; loc_cpu_entry = newinfo->entries; - if (copy_from_user(loc_cpu_entry, user + sizeof(tmp), - tmp.size) != 0) { + sockptr_advance(arg, sizeof(tmp)); + if (copy_from_sockptr(loc_cpu_entry, arg, tmp.size) != 0) { ret = -EFAULT; goto free_newinfo; } @@ -1493,7 +1493,7 @@ out_unlock: } static int -compat_do_replace(struct net *net, void __user *user, unsigned int len) +compat_do_replace(struct net *net, sockptr_t arg, unsigned int len) { int ret; struct compat_ip6t_replace tmp; @@ -1501,7 +1501,7 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len) void *loc_cpu_entry; struct ip6t_entry *iter; - if (copy_from_user(&tmp, user, sizeof(tmp)) != 0) + if (copy_from_sockptr(&tmp, arg, sizeof(tmp)) != 0) return -EFAULT; /* overflow check */ @@ -1517,8 +1517,8 @@ compat_do_replace(struct net *net, void __user *user, unsigned int len) return -ENOMEM; loc_cpu_entry = newinfo->entries; - if (copy_from_user(loc_cpu_entry, user + sizeof(tmp), - tmp.size) != 0) { + sockptr_advance(arg, sizeof(tmp)); + if (copy_from_sockptr(loc_cpu_entry, arg, tmp.size) != 0) { ret = -EFAULT; goto free_newinfo; } @@ -1619,7 +1619,7 @@ compat_get_entries(struct net *net, struct compat_ip6t_get_entries __user *uptr, #endif static int -do_ip6t_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len) +do_ip6t_set_ctl(struct sock *sk, int cmd, sockptr_t arg, unsigned int len) { int ret; @@ -1630,14 +1630,14 @@ do_ip6t_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned int len) case IP6T_SO_SET_REPLACE: #ifdef CONFIG_COMPAT if (in_compat_syscall()) - ret = compat_do_replace(sock_net(sk), user, len); + ret = compat_do_replace(sock_net(sk), arg, len); else #endif - ret = do_replace(sock_net(sk), user, len); + ret = do_replace(sock_net(sk), arg, len); break; case IP6T_SO_SET_ADD_COUNTERS: - ret = do_add_counters(sock_net(sk), USER_SOCKPTR(user), len); + ret = do_add_counters(sock_net(sk), arg, len); break; default: |