From: 黄涛 <huangtao@rock-chips.com>
Date: Sat, 30 Jul 2011 14:44:42 +0000 (+0800)
Subject: Revert "net: Replace AID_NET_RAW checks with capable(CAP_NET_RAW)."
X-Git-Tag: firefly_0821_release~9944
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=64e52659970567ed9fa5802ca4acb514b187ba3f;p=firefly-linux-kernel-4.4.55.git

Revert "net: Replace AID_NET_RAW checks with capable(CAP_NET_RAW)."

This reverts commit f9193a728ae53bf17792f3eebad07f89c2166c73.
---

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 58525bd72506..941d9752a3c1 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -118,16 +118,6 @@
 
 #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
@@ -271,6 +261,28 @@ static inline int inet_netns_ok(struct net *net, int protocol)
 	return ipprot->netns_ok;
 }
 
+#ifdef CONFIG_ANDROID_PARANOID_NETWORK
+static inline int current_has_network(void)
+{
+	return (!current_euid() || in_egroup_p(AID_INET) ||
+		in_egroup_p(AID_NET_RAW));
+}
+static inline int current_has_cap(int cap)
+{
+	if (cap == CAP_NET_RAW && in_egroup_p(AID_NET_RAW))
+		return 1;
+	return capable(cap);
+}
+# else
+static inline int current_has_network(void)
+{
+	return 1;
+}
+static inline int current_has_cap(int cap)
+{
+	return capable(cap);
+}
+#endif
 
 /*
  *	Create an inet socket.
@@ -342,7 +354,7 @@ lookup_protocol:
 	}
 
 	err = -EPERM;
-	if (answer->capability > 0 && !capable(answer->capability))
+	if (answer->capability > 0 && !current_has_cap(answer->capability))
 		goto out_rcu_unlock;
 
 	err = -EAFNOSUPPORT;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 2f7c3bf90e83..0a883bf68ceb 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -64,16 +64,6 @@
 
 #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");
@@ -109,6 +99,29 @@ static __inline__ struct ipv6_pinfo *inet6_sk_generic(struct sock *sk)
 	return (struct ipv6_pinfo *)(((u8 *)sk) + offset);
 }
 
+#ifdef CONFIG_ANDROID_PARANOID_NETWORK
+static inline int current_has_network(void)
+{
+	return (!current_euid() || in_egroup_p(AID_INET) ||
+		in_egroup_p(AID_NET_RAW));
+}
+static inline int current_has_cap(int cap)
+{
+	if (cap == CAP_NET_RAW && in_egroup_p(AID_NET_RAW))
+		return 1;
+	return capable(cap);
+}
+# else
+static inline int current_has_network(void)
+{
+	return 1;
+}
+static inline int current_has_cap(int cap)
+{
+	return capable(cap);
+}
+#endif
+
 static int inet6_create(struct net *net, struct socket *sock, int protocol)
 {
 	struct inet_sock *inet;
@@ -175,7 +188,7 @@ lookup_protocol:
 	}
 
 	err = -EPERM;
-	if (answer->capability > 0 && !capable(answer->capability))
+	if (answer->capability > 0 && !current_has_cap(answer->capability))
 		goto out_rcu_unlock;
 
 	sock->ops = answer->ops;