X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=omf_keys%2Fkey_fs.py;h=383b43252bcb5f7d2d0b9bad21041dcebb7d6f35;hb=4f4b6a83adff080c491ebf3d186f3e9205d61e46;hp=80cdc429bcf9654fe517f355e9c95693744d628c;hpb=ebd3b79100d211ed27c4fb8ed80cb40533b0fc36;p=playground.git

diff --git a/omf_keys/key_fs.py b/omf_keys/key_fs.py
index 80cdc42..383b432 100644
--- a/omf_keys/key_fs.py
+++ b/omf_keys/key_fs.py
@@ -3,11 +3,23 @@
 # A FUSE filesystem implementation to provide a file interface for
 # vsys_publickeys VSYS script. To be used by OMF Resource Controller.
 
+# Usage: ./keys_fs.py /keys
+#        ls /keys
+#        cat /keys/all
+
+# NOTE:
+# Sliver has to have following ccapabilities set.
+# SECURE_MOUNT
+# BINARY_MOUNT
+
+
 import os
+import sys
 import stat
 import errno
 import fuse
-import sys
+import fcntl
+import select
 from fuse import Fuse
 
 fuse.fuse_python_api = (0, 2)
@@ -15,9 +27,20 @@ fuse.fuse_python_api = (0, 2)
 keys_dir = "/keys"
 keys_file = os.path.join(keys_dir, "all")
 
-# TODO: for Giovanni
 def read_keys():
-    return "reading PLC users' public keys\n"
+    fin = os.open("/vsys/publickeys.in", os.O_NONBLOCK | os.O_WRONLY)
+    fout = os.open("/vsys/publickeys.out", os.O_NONBLOCK | os.O_RDONLY)
+    
+    in_flags = fcntl.fcntl(fin, fcntl.F_GETFL)
+    out_flags = fcntl.fcntl(fin, fcntl.F_GETFL)
+    
+    res = select.select([fout], [], [])
+    
+    fcntl.fcntl(fin, fcntl.F_SETFL, in_flags & ~os.O_NONBLOCK)
+    fcntl.fcntl(fout, fcntl.F_SETFL, out_flags & ~os.O_NONBLOCK)
+    
+    f = os.fdopen(fout, "r")
+    return f.read()
 
 class MyStat(fuse.Stat):
     def __init__(self):