Remove get_vmlinux calls

Sorry, I know I asked for it, but I hadn't quite figured out what was
going on.  Things in the symbols/linux code are considered part of the
framework, and therefore it's the framework version that should have been
bumped.  Since the framework comes packages with LinuxUtilities we can
rely on the version numbers to be suitable.  This cleans up the mess I
caused, sorry for the extra work!  5:S

Author: ikelos

volatility3/framework/constants/_version.py

@@ -1,7 +1,7 @@
 # We use the SemVer 2.0.0 versioning scheme
 VERSION_MAJOR = 2  # Number of releases of the library with a breaking change
-VERSION_MINOR = 8  # Number of changes that only add to the interface
-VERSION_PATCH = 1  # Number of changes that do not change the interface
+VERSION_MINOR = 9  # Number of changes that only add to the interface
+VERSION_PATCH = 0  # Number of changes that do not change the interface
 VERSION_SUFFIX = ""
 
 PACKAGE_VERSION = (

volatility3/framework/symbols/linux/extensions/__init__.py

@@ -1609,19 +1609,6 @@ def get_state(self):
 
 
 class bpf_prog(objects.StructType):
-    def _get_vmlinux(self):
-        linuxutils_required_version = (2, 1, 1)
-        linuxutils_current_version = linux.LinuxUtilities._version
-        if not requirements.VersionRequirement.matches_required(
-            linuxutils_required_version, linuxutils_current_version
-        ):
-            raise exceptions.PluginRequirementException(
-                f"linux.LinuxUtilities version not suitable: required {linuxutils_required_version} found {linuxutils_current_version}"
-            )
-
-        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
-        return vmlinux
-
     def get_type(self) -> Union[str, None]:
         """Returns a string with the eBPF program type"""
 
@@ -1645,7 +1632,7 @@ def get_tag(self) -> Union[str, None]:
         if not self.has_member("tag"):
             return None
 
-        vmlinux = self._get_vmlinux()
+        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
         vmlinux_layer = vmlinux.context.layers[vmlinux.layer_name]
 
         prog_tag_addr = self.tag.vol.offset
@@ -2057,26 +2044,13 @@ def get_flags_list(self) -> List[str]:
 
         return flags
 
-    def _get_vmlinux(self):
-        linuxutils_required_version = (2, 1, 1)
-        linuxutils_current_version = linux.LinuxUtilities._version
-        if not requirements.VersionRequirement.matches_required(
-            linuxutils_required_version, linuxutils_current_version
-        ):
-            raise exceptions.PluginRequirementException(
-                f"linux.LinuxUtilities version not suitable: required {linuxutils_required_version} found {linuxutils_current_version}"
-            )
-
-        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
-        return vmlinux
-
     def to_paddr(self) -> int:
         """Converts a page's virtual address to its physical address using the current physical memory model.
 
         Returns:
             int: page physical address
         """
-        vmlinux = self._get_vmlinux()
+        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
         vmlinux_layer = vmlinux.context.layers[vmlinux.layer_name]
 
         vmemmap_start = None
@@ -2127,7 +2101,7 @@ def get_content(self) -> Union[str, None]:
         Returns:
             The page content
         """
-        vmlinux = self._get_vmlinux()
+        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
         vmlinux_layer = vmlinux.context.layers[vmlinux.layer_name]
         physical_layer = vmlinux.context.layers["memory_layer"]
         page_paddr = self.to_paddr()
@@ -2145,19 +2119,6 @@ class IDR(objects.StructType):
     MAX_IDR_SHIFT = INT_SIZE * 8 - 1
     MAX_IDR_BIT = 1 << MAX_IDR_SHIFT
 
-    def _get_vmlinux(self):
-        linuxutils_required_version = (2, 1, 1)
-        linuxutils_current_version = linux.LinuxUtilities._version
-        if not requirements.VersionRequirement.matches_required(
-            linuxutils_required_version, linuxutils_current_version
-        ):
-            raise exceptions.PluginRequirementException(
-                f"linux.LinuxUtilities version not suitable: required {linuxutils_required_version} found {linuxutils_current_version}"
-            )
-
-        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
-        return vmlinux
-
     def idr_max(self, num_layers: int) -> int:
         """Returns the maximum ID which can be allocated given idr::layers
 
@@ -2181,7 +2142,7 @@ def idr_find(self, idr_id: int) -> int:
         Returns:
             A pointer to the given ID element
         """
-        vmlinux = self._get_vmlinux()
+        vmlinux = linux.LinuxUtilities.get_module_from_volobj_type(self._context, self)
         if not vmlinux.get_type("idr_layer").has_member("layer"):
             vollog.info(
                 "Unsupported IDR implementation, it should be a very very old kernel, probabably < 2.6"