diff --git a/python/plugins/processing/algs/grass7/description/r.mask.rast.txt b/python/plugins/processing/algs/grass7/description/r.mask.rast.txt
new file mode 100644
index 000000000000..358253e907f1
--- /dev/null
+++ b/python/plugins/processing/algs/grass7/description/r.mask.rast.txt
@@ -0,0 +1,8 @@
+r.mask
+r.mask.rast - Creates a MASK for limiting raster operation.
+Raster (r.*)
+ParameterRaster|raster|Name of raster map to use as mask|False
+ParameterRaster|input|Name of raster map to which apply the mask|False
+ParameterString|maskcats|Raster values to use for mask. Format: 1 2 3 thru 7 *|*|False|True
+*ParameterBoolean|-i|Create inverse mask|False|True
+OutputRaster|output|Masked
diff --git a/python/plugins/processing/algs/grass7/description/r.mask.vect.txt b/python/plugins/processing/algs/grass7/description/r.mask.vect.txt
new file mode 100644
index 000000000000..cc009c630ca8
--- /dev/null
+++ b/python/plugins/processing/algs/grass7/description/r.mask.vect.txt
@@ -0,0 +1,9 @@
+r.mask
+r.mask.vect - Creates a MASK for limiting raster operation with a vector layer.
+Raster (r.*)
+ParameterVector|vector|Name of vector map to use as mask|1,2|False
+ParameterRaster|input|Name of raster map to which apply the mask|False
+*ParameterString|cats|Category values. Example: 1,3,7-9,13|None|False|True
+*ParameterString|where|WHERE conditions of SQL statement without 'where' keyword|None|True|True
+*ParameterBoolean|-i|Create inverse mask|False|True
+OutputRaster|output|Masked
diff --git a/python/plugins/processing/algs/grass7/ext/r_mask.py b/python/plugins/processing/algs/grass7/ext/r_mask.py
new file mode 100644
index 000000000000..97875aab7349
--- /dev/null
+++ b/python/plugins/processing/algs/grass7/ext/r_mask.py
@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    r_mask.py
+    ---------
+    Date                 : February 2016
+    Copyright            : (C) 2016 by Médéric Ribreux
+    Email                : medspx at medspx dot fr
+***************************************************************************
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+***************************************************************************
+"""
+
+__author__ = 'Médéric Ribreux'
+__date__ = 'February 2016'
+__copyright__ = '(C) 2016, Médéric Ribreux'
+
+# This will get replaced with a git SHA1 when you do a git archive
+
+__revision__ = '$Format:%H$'
+
+
+def processCommand(alg):
+    # Remove output and input
+    clipped = alg.getParameterFromName('input')
+    out = alg.getOutputFromName('output')
+    alg.exportedLayers[out.value] = alg.exportedLayers[clipped.value]
+    alg.removeOutputFromName('output')
+    alg.parameters.remove(clipped)
+
+    alg.processCommand()
+
+    # Re-add the output !
+    alg.addOutput(out)
+
+
+def processOutputs(alg):
+    out = alg.getOutputValue('output')
+    inputRaster = alg.exportedLayers[out]
+    command = u"r.out.gdal --overwrite -c createopt=\"TFW=YES,COMPRESS=LZW\" input={} output=\"{}\"".format(
+        inputRaster, out)
+    alg.commands.append(command)
+    alg.outputCommands.append(command)
diff --git a/python/plugins/processing/algs/grass7/ext/r_mask_rast.py b/python/plugins/processing/algs/grass7/ext/r_mask_rast.py
new file mode 100644
index 000000000000..4714ea11972d
--- /dev/null
+++ b/python/plugins/processing/algs/grass7/ext/r_mask_rast.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    r_mask_rast.py
+    --------------
+    Date                 : February 2016
+    Copyright            : (C) 2016 by Médéric Ribreux
+    Email                : medspx at medspx dot fr
+***************************************************************************
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+***************************************************************************
+"""
+
+__author__ = 'Médéric Ribreux'
+__date__ = 'February 2016'
+__copyright__ = '(C) 2016, Médéric Ribreux'
+
+# This will get replaced with a git SHA1 when you do a git archive
+
+__revision__ = '$Format:%H$'
+
+import r_mask
+
+
+def processCommand(alg):
+    r_mask.processCommand(alg)
+
+
+def processOutputs(alg):
+    r_mask.processOutputs(alg)
diff --git a/python/plugins/processing/algs/grass7/ext/r_mask_vect.py b/python/plugins/processing/algs/grass7/ext/r_mask_vect.py
new file mode 100644
index 000000000000..dfc332d5eda0
--- /dev/null
+++ b/python/plugins/processing/algs/grass7/ext/r_mask_vect.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+
+"""
+***************************************************************************
+    r_mask_vect.py
+    --------------
+    Date                 : February 2016
+    Copyright            : (C) 2016 by Médéric Ribreux
+    Email                : medspx at medspx dot fr
+***************************************************************************
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+***************************************************************************
+"""
+
+__author__ = 'Médéric Ribreux'
+__date__ = 'February 2016'
+__copyright__ = '(C) 2016, Médéric Ribreux'
+
+# This will get replaced with a git SHA1 when you do a git archive
+
+__revision__ = '$Format:%H$'
+
+import r_mask
+
+
+def processCommand(alg):
+    r_mask.processCommand(alg)
+
+
+def processOutputs(alg):
+    r_mask.processOutputs(alg)