Merge commit 'v3.0-rc5' into android-3.0

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / af_inet.c

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index cc1463156cd037ad08b6a2f637c90b4d43fc5e7a..d4e5ade7f851af38fe9a41c419d2c924d4bdc199 100644 (file)
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -118,6 +118,19 @@
 #include <linux/mroute.h>
 #endif
 
+#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
 
 /* The inetsw table contains everything that inet_create needs to
  * build a new socket.
@@ -258,6 +271,7 @@ static inline int inet_netns_ok(struct net *net, int protocol)
        return ipprot->netns_ok;
 }
 
+
 /*
  *     Create an inet socket.
  */
@@ -274,6 +288,9 @@ static int inet_create(struct net *net, struct socket *sock, int protocol,
        int try_loading_module = 0;
        int err;
 
+       if (!current_has_network())
+               return -EACCES;
+
        if (unlikely(!inet_ehash_secret))
                if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
                        build_ehash_secret();
@@ -465,6 +482,9 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
        if (addr_len < sizeof(struct sockaddr_in))
                goto out;
 
+       if (addr->sin_family != AF_INET)
+               goto out;
+
        chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr);
 
        /* Not specified by any standard per-se, however it breaks too
@@ -673,6 +693,7 @@ int inet_accept(struct socket *sock, struct socket *newsock, int flags)
 
        lock_sock(sk2);
 
+       sock_rps_record_flow(sk2);
        WARN_ON(!((1 << sk2->sk_state) &
                  (TCPF_ESTABLISHED | TCPF_CLOSE_WAIT | TCPF_CLOSE)));
 
@@ -868,6 +889,7 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
        case SIOCSIFPFLAGS:
        case SIOCGIFPFLAGS:
        case SIOCSIFFLAGS:
+       case SIOCKILLADDR:
                err = devinet_ioctl(net, cmd, (void __user *)arg);
                break;
        default: