From 988f7d48a153e9ee56582a4dc4d3c4f00a157696 Mon Sep 17 00:00:00 2001
From: Jake Omann <jomann@nagios.com>
Date: Fri, 8 Dec 2017 17:41:35 -0600
Subject: [PATCH] POC for adding mountpoints to disk_partitions() with all=True

---
 psutil/_psutil_windows.c | 52 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/psutil/_psutil_windows.c b/psutil/_psutil_windows.c
index c840a2b7c..ef8e65886 100644
--- a/psutil/_psutil_windows.c
+++ b/psutil/_psutil_windows.c
@@ -2498,11 +2498,15 @@ psutil_disk_partitions(PyObject *self, PyObject *args) {
     DWORD num_bytes;
     char drive_strings[255];
     char *drive_letter = drive_strings;
+    char mp_buf[MAX_PATH];
+    char mp_path[MAX_PATH];
     int all;
     int type;
     int ret;
     unsigned int old_mode = 0;
     char opts[20];
+    HANDLE mp_h;
+    BOOL mp_flag;
     LPTSTR fs_type[MAX_PATH + 1] = { 0 };
     DWORD pflags = 0;
     PyObject *py_all;
@@ -2573,6 +2577,54 @@ psutil_disk_partitions(PyObject *self, PyObject *args) {
                 strcat_s(opts, _countof(opts), "rw");
             if (pflags & FILE_VOLUME_IS_COMPRESSED)
                 strcat_s(opts, _countof(opts), ",compressed");
+
+            // Check for mount points on this volume and add/get info
+            // (checks first to know if we can even have mount points)
+            if (all == 1 && (pflags & FILE_SUPPORTS_REPARSE_POINTS)) {
+
+                mp_h = FindFirstVolumeMountPoint(drive_letter, mp_buf, MAX_PATH);
+                if (mp_h != INVALID_HANDLE_VALUE) {
+                    strcpy_s(mp_path, MAX_PATH, drive_letter);
+                    strcat_s(mp_path, MAX_PATH, mp_buf);
+
+                    py_tuple = Py_BuildValue(
+                        "(ssss)",
+                        drive_letter,
+                        mp_path,
+                        fs_type,  // either FAT, FAT32, NTFS, HPFS, CDFS, UDF or NWFS
+                        opts);
+                    if (!py_tuple)
+                        goto error;
+                    if (PyList_Append(py_retlist, py_tuple))
+                        goto error;
+                    Py_DECREF(py_tuple);
+
+                    // Continue looking for more mount points
+                    mp_flag = FindNextVolumeMountPoint(mp_h, mp_buf, MAX_PATH);
+                    while (mp_flag) {
+
+                        strcpy_s(mp_path, MAX_PATH, drive_letter);
+                        strcat_s(mp_path, MAX_PATH, mp_buf);
+
+                        py_tuple = Py_BuildValue(
+                            "(ssss)",
+                            drive_letter,
+                            mp_path,
+                            fs_type,  // either FAT, FAT32, NTFS, HPFS, CDFS, UDF or NWFS
+                            opts);
+                        if (!py_tuple)
+                            goto error;
+                        if (PyList_Append(py_retlist, py_tuple))
+                            goto error;
+                        Py_DECREF(py_tuple);
+
+                        mp_flag = FindNextVolumeMountPoint(mp_h, mp_buf, MAX_PATH);
+                    }
+
+                    FindVolumeMountPointClose(mp_h);
+                }
+
+            }
         }
 
         if (strlen(opts) > 0)