Merge 4.4.172 into android-4.4-p

[sagit-ice-cold/kernel_xiaomi_msm8998.git] / net / ipv6 / af_inet6.c

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index d6f2dab..043c30d 100644 (file)
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -64,6 +64,20 @@
 #include <asm/uaccess.h>
 #include <linux/mroute6.h>
 
+#ifdef CONFIG_ANDROID_PARANOID_NETWORK
+#include <linux/android_aid.h>
+
+static inline int current_has_network(void)
+{
+       return in_egroup_p(AID_INET) || capable(CAP_NET_RAW);
+}
+#else
+static inline int current_has_network(void)
+{
+       return 1;
+}
+#endif
+
 MODULE_AUTHOR("Cast of dozens");
 MODULE_DESCRIPTION("IPv6 protocol stack for Linux");
 MODULE_LICENSE("GPL");
@@ -112,6 +126,9 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
        if (protocol < 0 || protocol >= IPPROTO_MAX)
                return -EINVAL;
 
+       if (!current_has_network())
+               return -EACCES;
+
        /* Look for the requested type/protocol pair. */
 lookup_protocol:
        err = -ESOCKTNOSUPPORT;
@@ -158,8 +175,7 @@ lookup_protocol:
        }
 
        err = -EPERM;
-       if (sock->type == SOCK_RAW && !kern &&
-           !ns_capable(net->user_ns, CAP_NET_RAW))
+       if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
                goto out_rcu_unlock;
 
        sock->ops = answer->ops;
@@ -673,6 +689,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
                fl6.flowi6_mark = sk->sk_mark;
                fl6.fl6_dport = inet->inet_dport;
                fl6.fl6_sport = inet->inet_sport;
+               fl6.flowi6_uid = sk->sk_uid;
                security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
 
                rcu_read_lock();