X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=net%2Fipv4%2Faf_inet.c;h=45ced52c03d46db84900228d10bfb391053d0248;hb=c5c2523893747f88a83376abad310c8ad13f7197;hp=cf358c84c44060353b69b5ef26129f8a9cb2a266;hpb=f8abea8f8c24ecdad6d6861bffb912f23f2741cd;p=powerpc.git

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index cf358c84c4..45ced52c03 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -87,6 +87,7 @@
 #include <linux/init.h>
 #include <linux/poll.h>
 #include <linux/netfilter_ipv4.h>
+#include <linux/random.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -217,6 +218,26 @@ out:
 	return err;
 }
 
+u32 inet_ehash_secret __read_mostly;
+EXPORT_SYMBOL(inet_ehash_secret);
+
+/*
+ * inet_ehash_secret must be set exactly once
+ * Instead of using a dedicated spinlock, we (ab)use inetsw_lock
+ */
+void build_ehash_secret(void)
+{
+	u32 rnd;
+	do {
+		get_random_bytes(&rnd, sizeof(rnd));
+	} while (rnd == 0);
+	spin_lock_bh(&inetsw_lock);
+	if (!inet_ehash_secret)
+		inet_ehash_secret = rnd;
+	spin_unlock_bh(&inetsw_lock);
+}
+EXPORT_SYMBOL(build_ehash_secret);
+
 /*
  *	Create an inet socket.
  */
@@ -233,6 +254,11 @@ static int inet_create(struct socket *sock, int protocol)
 	int try_loading_module = 0;
 	int err;
 
+	if (sock->type != SOCK_RAW &&
+	    sock->type != SOCK_DGRAM &&
+	    !inet_ehash_secret)
+		build_ehash_secret();
+
 	sock->state = SS_UNCONNECTED;
 
 	/* Look for the requested type/protocol pair. */
@@ -755,6 +781,9 @@ int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 		case SIOCGSTAMP:
 			err = sock_get_timestamp(sk, (struct timeval __user *)arg);
 			break;
+		case SIOCGSTAMPNS:
+			err = sock_get_timestampns(sk, (struct timespec __user *)arg);
+			break;
 		case SIOCADDRT:
 		case SIOCDELRT:
 		case SIOCRTMSG:
@@ -1109,7 +1138,7 @@ static int inet_gso_send_check(struct sk_buff *skb)
 	if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
 		goto out;
 
-	iph = skb->nh.iph;
+	iph = ip_hdr(skb);
 	ihl = iph->ihl * 4;
 	if (ihl < sizeof(*iph))
 		goto out;
@@ -1117,8 +1146,9 @@ static int inet_gso_send_check(struct sk_buff *skb)
 	if (unlikely(!pskb_may_pull(skb, ihl)))
 		goto out;
 
-	skb->h.raw = __skb_pull(skb, ihl);
-	iph = skb->nh.iph;
+	__skb_pull(skb, ihl);
+	skb_reset_transport_header(skb);
+	iph = ip_hdr(skb);
 	proto = iph->protocol & (MAX_INET_PROTOS - 1);
 	err = -EPROTONOSUPPORT;
 
@@ -1152,7 +1182,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
 	if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
 		goto out;
 
-	iph = skb->nh.iph;
+	iph = ip_hdr(skb);
 	ihl = iph->ihl * 4;
 	if (ihl < sizeof(*iph))
 		goto out;
@@ -1160,8 +1190,9 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
 	if (unlikely(!pskb_may_pull(skb, ihl)))
 		goto out;
 
-	skb->h.raw = __skb_pull(skb, ihl);
-	iph = skb->nh.iph;
+	__skb_pull(skb, ihl);
+	skb_reset_transport_header(skb);
+	iph = ip_hdr(skb);
 	id = ntohs(iph->id);
 	proto = iph->protocol & (MAX_INET_PROTOS - 1);
 	segs = ERR_PTR(-EPROTONOSUPPORT);
@@ -1177,11 +1208,11 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
 
 	skb = segs;
 	do {
-		iph = skb->nh.iph;
+		iph = ip_hdr(skb);
 		iph->id = htons(id++);
 		iph->tot_len = htons(skb->len - skb->mac_len);
 		iph->check = 0;
-		iph->check = ip_fast_csum(skb->nh.raw, iph->ihl);
+		iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
 	} while ((skb = skb->next));
 
 out:
@@ -1336,7 +1367,7 @@ static int __init inet_init(void)
 	 *	Initialise per-cpu ipv4 mibs
 	 */
 
-	if(init_ipv4_mibs())
+	if (init_ipv4_mibs())
 		printk(KERN_CRIT "inet_init: Cannot init ipv4 mibs\n"); ;
 
 	ipv4_proc_init();