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-rw-r--r--net/unix/diag.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 161ce6c05e31..83799ef19b49 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -26,6 +26,23 @@ rtattr_failure:
return -EMSGSIZE;
}
+static int sk_diag_dump_vfs(struct sock *sk, struct sk_buff *nlskb)
+{
+ struct dentry *dentry = unix_sk(sk)->dentry;
+ struct unix_diag_vfs *uv;
+
+ if (dentry) {
+ uv = UNIX_DIAG_PUT(nlskb, UNIX_DIAG_VFS, sizeof(*uv));
+ uv->udiag_vfs_ino = dentry->d_inode->i_ino;
+ uv->udiag_vfs_dev = dentry->d_sb->s_dev;
+ }
+
+ return 0;
+
+rtattr_failure:
+ return -EMSGSIZE;
+}
+
static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_req *req,
u32 pid, u32 seq, u32 flags, int sk_ino)
{
@@ -48,6 +65,10 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r
sk_diag_dump_name(sk, skb))
goto nlmsg_failure;
+ if ((req->udiag_show & UDIAG_SHOW_VFS) &&
+ sk_diag_dump_vfs(sk, skb))
+ goto nlmsg_failure;
+
nlh->nlmsg_len = skb_tail_pointer(skb) - b;
return skb->len;