[edk2-devel] [PATCH 1/2] BaseTools/FMMT: Add Extract FV function

Yuwei Chen yuwei.chen at intel.com
Fri Sep 16 01:50:56 UTC 2022


REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3938

With this patch "-e" parameter supports extract FV function.
Usage: FMMT -e Inputfile TargetFv Outputfile

Cc: Bob Feng <bob.c.feng at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Signed-off-by: Yuwei Chen <yuwei.chen at intel.com>
---
 BaseTools/Source/Python/FMMT/FMMT.py          |  3 +-
 .../Source/Python/FMMT/core/FMMTOperation.py  | 45 +++++++++++--------
 .../Source/Python/FMMT/core/FvHandler.py      |  5 +--
 3 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/BaseTools/Source/Python/FMMT/FMMT.py b/BaseTools/Source/Python/FMMT/FMMT.py
index 10800e776a72..3590f3340ec3 100644
--- a/BaseTools/Source/Python/FMMT/FMMT.py
+++ b/BaseTools/Source/Python/FMMT/FMMT.py
@@ -24,7 +24,8 @@ parser.add_argument("-d", "--Delete", dest="Delete", nargs='+',
                         If not given TargetFvName, all the existed target Ffs will be deleted'")
 parser.add_argument("-e", "--Extract", dest="Extract", nargs='+',
                     help="Extract a Ffs Info: '-e inputfile TargetFvName(Optional) TargetFfsName outputfile\
-                        If not given TargetFvName, the first found target Ffs will be extracted'")
+                        If not given TargetFvName, the first found target Ffs will be extracted.\
+                        If only given TargetFvName, not given TargetFfsName, the TargetFv will be extracted to output file'")
 parser.add_argument("-a", "--Add", dest="Add", nargs='+',
                     help="Add a Ffs into a FV:'-a inputfile TargetFvName newffsfile outputfile'")
 parser.add_argument("-r", "--Replace", dest="Replace", nargs='+',
diff --git a/BaseTools/Source/Python/FMMT/core/FMMTOperation.py b/BaseTools/Source/Python/FMMT/core/FMMTOperation.py
index c2cc2e246740..4e58c91b5c41 100644
--- a/BaseTools/Source/Python/FMMT/core/FMMTOperation.py
+++ b/BaseTools/Source/Python/FMMT/core/FMMTOperation.py
@@ -63,9 +63,10 @@ def DeleteFfs(inputfile: str, TargetFfs_name: str, outputfile: str, Fv_name: str
     FmmtParser.WholeFvTree.FindNode(TargetFfs_name, FmmtParser.WholeFvTree.Findlist)
     # Choose the Specfic DeleteFfs with Fv info
     if Fv_name:
-        for item in FmmtParser.WholeFvTree.Findlist:
-            if item.Parent.key != Fv_name and item.Parent.Data.Name != Fv_name:
-                FmmtParser.WholeFvTree.Findlist.remove(item)
+        FindNum = len(FmmtParser.WholeFvTree.Findlist)
+        for index in range(FindNum-1, -1, -1):
+            if FmmtParser.WholeFvTree.Findlist[index].Parent.key != Fv_name and FmmtParser.WholeFvTree.Findlist[index].Parent.Data.Name != Fv_name:
+                FmmtParser.WholeFvTree.Findlist.remove(FmmtParser.WholeFvTree.Findlist[index])
     Status = False
     if FmmtParser.WholeFvTree.Findlist != []:
         for Delete_Ffs in FmmtParser.WholeFvTree.Findlist:
@@ -149,9 +150,10 @@ def ReplaceFfs(inputfile: str, Ffs_name: str, newffsfile: str, outputfile: str,
     new_ffs.Data.PadData = GetPadSize(new_ffs.Data.Size, FFS_COMMON_ALIGNMENT) * b'\xff'
     FmmtParser.WholeFvTree.FindNode(Ffs_name, FmmtParser.WholeFvTree.Findlist)
     if Fv_name:
-        for item in FmmtParser.WholeFvTree.Findlist:
-            if item.Parent.key != Fv_name and item.Parent.Data.Name != Fv_name:
-                FmmtParser.WholeFvTree.Findlist.remove(item)
+        FindNum = len(FmmtParser.WholeFvTree.Findlist)
+        for index in range(FindNum-1, -1, -1):
+            if FmmtParser.WholeFvTree.Findlist[index].Parent.key != Fv_name and FmmtParser.WholeFvTree.Findlist[index].Parent.Data.Name != Fv_name:
+                FmmtParser.WholeFvTree.Findlist.remove(FmmtParser.WholeFvTree.Findlist[index])
     if FmmtParser.WholeFvTree.Findlist != []:
         for TargetFfs in FmmtParser.WholeFvTree.Findlist:
             FfsMod = FvHandler(newFmmtParser.WholeFvTree.Child[0], TargetFfs)
@@ -180,18 +182,25 @@ def ExtractFfs(inputfile: str, Ffs_name: str, outputfile: str, Fv_name: str=None
     logger.debug('Done!')
     FmmtParser.WholeFvTree.FindNode(Ffs_name, FmmtParser.WholeFvTree.Findlist)
     if Fv_name:
-        for item in FmmtParser.WholeFvTree.Findlist:
-            if item.Parent.key != Fv_name and item.Parent.Data.Name != Fv_name:
-                FmmtParser.WholeFvTree.Findlist.remove(item)
+        FindNum = len(FmmtParser.WholeFvTree.Findlist)
+        for index in range(FindNum-1, -1, -1):
+            if FmmtParser.WholeFvTree.Findlist[index].Parent.key != Fv_name and FmmtParser.WholeFvTree.Findlist[index].Parent.Data.Name != Fv_name:
+                FmmtParser.WholeFvTree.Findlist.remove(FmmtParser.WholeFvTree.Findlist[index])
     if FmmtParser.WholeFvTree.Findlist != []:
         TargetNode = FmmtParser.WholeFvTree.Findlist[0]
-        TargetFv = TargetNode.Parent
-        if TargetFv.Data.Header.Attributes & EFI_FVB2_ERASE_POLARITY:
-            TargetNode.Data.Header.State = c_uint8(
-                ~TargetNode.Data.Header.State)
-        FinalData = struct2stream(TargetNode.Data.Header) + TargetNode.Data.Data
-        with open(outputfile, "wb") as f:
-            f.write(FinalData)
-        logger.debug('Extract ffs data is saved in {}.'.format(outputfile))
+        if TargetNode.type == FV_TREE or SEC_FV_TREE or DATA_FV_TREE:
+            FinalData = struct2stream(TargetNode.Data.Header) + TargetNode.Data.Data
+            with open(outputfile, "wb") as f:
+                f.write(FinalData)
+            logger.debug('Extract fv data is saved in {}.'.format(outputfile))
+        else:
+            TargetFv = TargetNode.Parent
+            if TargetFv.Data.Header.Attributes & EFI_FVB2_ERASE_POLARITY:
+                TargetNode.Data.Header.State = c_uint8(
+                    ~TargetNode.Data.Header.State)
+            FinalData = struct2stream(TargetNode.Data.Header) + TargetNode.Data.Data
+            with open(outputfile, "wb") as f:
+                f.write(FinalData)
+            logger.debug('Extract ffs data is saved in {}.'.format(outputfile))
     else:
-        logger.error('Target Ffs not found!!!')
+        logger.error('Target Ffs/Fv not found!!!')
diff --git a/BaseTools/Source/Python/FMMT/core/FvHandler.py b/BaseTools/Source/Python/FMMT/core/FvHandler.py
index c81541ec18b1..e8b848009878 100644
--- a/BaseTools/Source/Python/FMMT/core/FvHandler.py
+++ b/BaseTools/Source/Python/FMMT/core/FvHandler.py
@@ -155,7 +155,6 @@ class FvHandler:
     def CompressData(self, TargetTree) -> None:
         TreePath = TargetTree.GetTreePath()
         pos = len(TreePath)
-        self.Status = False
         while pos:
             if not self.Status:
                 if TreePath[pos-1].type == SECTION_TREE and TreePath[pos-1].Data.Type == 0x02:
@@ -487,7 +486,6 @@ class FvHandler:
                     ~self.NewFfs.Data.Header.State)
             # If TargetFv have enough free space, just move part of the free space to NewFfs, split free space to NewFfs and new free space.
             if TargetLen < 0:
-                self.Status = True
                 self.TargetFfs.Data.Data = b'\xff' * (-TargetLen)
                 TargetFv.Data.Free_Space = (-TargetLen)
                 TargetFv.Data.ModFvExt()
@@ -498,13 +496,14 @@ class FvHandler:
                 ModifyFfsType(self.NewFfs)
                 # Recompress from the Fv node to update all the related node data.
                 self.CompressData(TargetFv)
+                self.Status = True
             elif TargetLen == 0:
-                self.Status = True
                 TargetFv.Child.remove(self.TargetFfs)
                 TargetFv.insertChild(self.NewFfs)
                 ModifyFfsType(self.NewFfs)
                 # Recompress from the Fv node to update all the related node data.
                 self.CompressData(TargetFv)
+                self.Status = True
             # If TargetFv do not have enough free space, need move part of the free space of TargetFv's parent Fv to TargetFv/NewFfs.
             else:
                 if TargetFv.type == FV_TREE:
-- 
2.27.0.windows.1



-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#93879): https://edk2.groups.io/g/devel/message/93879
Mute This Topic: https://groups.io/mt/93714554/1813853
Group Owner: devel+owner at edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [edk2-devel-archive at redhat.com]
-=-=-=-=-=-=-=-=-=-=-=-




More information about the edk2-devel-archive mailing list