Subject: [PATCH] nethost: Only display af_unix sockets for the current host.
From: Eric W. Biederman <ebiederman@lnxi.com>
Date: 1133878126 -0700

---

 net/unix/af_unix.c |   26 ++++++++++++++++++++------
 1 files changed, 20 insertions(+), 6 deletions(-)

ba32b5675c276019e9e979306ce8738160307a85
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 9ca3ca2..4073b4d 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1909,12 +1909,19 @@ static unsigned int unix_poll(struct fil
 
 
 #ifdef CONFIG_PROC_FS
-static struct sock *unix_seq_idx(int *iter, loff_t pos)
+struct unix_iter_state {
+	struct nethost	*host;
+	int		i;
+};
+
+static struct sock *unix_seq_idx(struct unix_iter_state *iter, loff_t pos)
 {
 	loff_t off = 0;
 	struct sock *s;
 
-	for (s = first_unix_socket(iter); s; s = next_unix_socket(iter, s)) {
+	for (s = first_unix_socket(&iter->i); s; s = next_unix_socket(&iter->i, s)) {
+		if (s->sk_host != iter->host)
+			continue;
 		if (off == pos) 
 			return s;
 		++off;
@@ -1931,11 +1938,17 @@ static void *unix_seq_start(struct seq_f
 
 static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
+	struct unix_iter_state *iter = seq->private;
+	struct sock *sk = v;
 	++*pos;
 
 	if (v == (void *)1) 
-		return first_unix_socket(seq->private);
-	return next_unix_socket(seq->private, v);
+		sk = first_unix_socket(&iter->i);
+	else
+		sk = next_unix_socket(&iter->i, sk);
+	while(sk && (sk->sk_host != iter->host))
+		sk = next_unix_socket(&iter->i, sk);
+	return sk;
 }
 
 static void unix_seq_stop(struct seq_file *seq, void *v)
@@ -1999,7 +2012,7 @@ static int unix_seq_open(struct inode *i
 {
 	struct seq_file *seq;
 	int rc = -ENOMEM;
-	int *iter = kmalloc(sizeof(int), GFP_KERNEL);
+	struct unix_iter_state *iter = kmalloc(sizeof(*iter), GFP_KERNEL);
 
 	if (!iter)
 		goto out;
@@ -2010,7 +2023,8 @@ static int unix_seq_open(struct inode *i
 
 	seq	     = file->private_data;
 	seq->private = iter;
-	*iter = 0;
+	iter->i = 0;
+	iter->host = current->host;
 out:
 	return rc;
 out_kfree:
-- 
1.0.GIT