From 7d7f9554b49ffbdeed0b2e614c0692f0f348bb3d Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@tremily.us>
Date: Fri, 19 Oct 2012 00:47:51 -0400
Subject: [PATCH] Add Module.versions attribute.

Signed-off-by: W. Trevor King <wking@tremily.us>
---
 kmod/_libkmod_h.pxd | 11 +++++++++++
 kmod/module.pyx     | 18 ++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/kmod/_libkmod_h.pxd b/kmod/_libkmod_h.pxd
index 457cfbc..ef948dd 100644
--- a/kmod/_libkmod_h.pxd
+++ b/kmod/_libkmod_h.pxd
@@ -9,14 +9,19 @@
 # along with this program; if not, write to the Free Software Foundation,
 # Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
+cimport libc.stdint as _stdint
+
+
 cdef extern from *:
     ctypedef char* const_char_ptr 'const char *'
     ctypedef char* const_char_const_ptr 'const char const *'
     ctypedef void* const_void_ptr 'const void *'
 
+
 cdef extern from 'errno.h':
     enum: EEXIST
 
+
 cdef extern from 'stdbool.h':
     ctypedef struct bool:
         pass
@@ -94,3 +99,9 @@ cdef extern from 'libkmod.h':
     # returned by kernel
     int kmod_module_get_refcnt(const_kmod_module_ptr mod)
     long kmod_module_get_size(const_kmod_module_ptr mod)
+
+    # Information retrieved from ELF headers and section
+    int kmod_module_get_versions(const_kmod_module_ptr mod, kmod_list **list)
+    const_char_ptr kmod_module_version_get_symbol(const_kmod_list_ptr entry)
+    _stdint.uint64_t kmod_module_version_get_crc(const_kmod_list_ptr entry)
+    void kmod_module_versions_free_list(kmod_list *list)
diff --git a/kmod/module.pyx b/kmod/module.pyx
index 3c1f023..379a75d 100644
--- a/kmod/module.pyx
+++ b/kmod/module.pyx
@@ -67,6 +67,24 @@ cdef class Module (object):
         return _libkmod_h.kmod_module_get_size(self.module)
     size = property(fget=_size_get)
 
+    def _versions_get(self):
+        cdef _list.ModList ml = _list.ModList()
+        cdef _list.ModListItem mli
+        err = _libkmod_h.kmod_module_get_versions(self.module, &ml.list)
+        if err < 0:
+            raise _KmodError('Could not get versions')
+        try:
+            for item in ml:
+                mli = <_list.ModListItem> item
+                symbol = _util.char_ptr_to_str(
+                    _libkmod_h.kmod_module_version_get_symbol(mli.list))
+                crc = _libkmod_h.kmod_module_version_get_crc(mli.list)
+                yield {'symbol': symbol, 'crc': crc}
+        finally:
+            _libkmod_h.kmod_module_versions_free_list(ml.list)
+            ml.list = NULL
+    versions = property(fget=_versions_get)
+
     def insert(self, flags=0, extra_options=None, install_callback=None,
                data=None, print_action_callback=None):
         cdef char *opt = NULL
-- 
2.26.2