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Skip some special section (CRC and Fileinfo)

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This commit is contained in:
Maschell 2019-03-07 01:29:06 +01:00
parent 86551bf306
commit 2ddc46b43a
1 changed files with 24 additions and 3 deletions
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27
src/main/java/rpx/RPXFileSystem.java
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@ -58,6 +58,9 @@ public class RPXFileSystem implements GFileSystem {
public static final int SHF_RPL_ZLIB = 0x08000000; public static final int SHF_RPL_ZLIB = 0x08000000;
public static final int SHT_NOBITS = 0x00000008; public static final int SHT_NOBITS = 0x00000008;
public static final int SHT_RPL_CRCS = 0x80000003;
public static final int SHT_RPL_FILEINFO = 0x80000004;
private final FSRLRoot fsFSRL; private final FSRLRoot fsFSRL;
private FileSystemIndexHelper<ElfData> fsih; private FileSystemIndexHelper<ElfData> fsih;
private FileSystemRefManager refManager = new FileSystemRefManager(this); private FileSystemRefManager refManager = new FileSystemRefManager(this);
@ -100,11 +103,21 @@ public class RPXFileSystem implements GFileSystem {
ElfHeader elfFile = ElfHeader.createElfHeader(RethrowContinuesFactory.INSTANCE, bProvider); ElfHeader elfFile = ElfHeader.createElfHeader(RethrowContinuesFactory.INSTANCE, bProvider);
elfFile.parse(); elfFile.parse();
long shdr_elf_offset = elfFile.e_ehsize() & 0xFFFFFFFF;
long shdr_data_elf_offset = shdr_elf_offset + elfFile.e_shnum() * elfFile.e_shentsize();
ByteBuffer buffer = ByteBuffer.allocate(0); ByteBuffer buffer = ByteBuffer.allocate(0);
int section_count = 0;
for (ElfSectionHeader h : elfFile.getSections()) { for (ElfSectionHeader h : elfFile.getSections()) {
if (h.getType() == SHT_RPL_CRCS || h.getType() == SHT_RPL_FILEINFO) {
continue;
}
section_count++;
}
long shdr_elf_offset = elfFile.e_ehsize() & 0xFFFFFFFF;
long shdr_data_elf_offset = shdr_elf_offset + section_count * elfFile.e_shentsize();
for (ElfSectionHeader h : elfFile.getSections()) {
long curSize = h.getSize(); long curSize = h.getSize();
long flags = h.getFlags(); long flags = h.getFlags();
long offset = h.getOffset(); long offset = h.getOffset();
@ -130,8 +143,16 @@ public class RPXFileSystem implements GFileSystem {
} }
long newEnd = shdr_data_elf_offset + curSize; long newEnd = shdr_data_elf_offset + curSize;
if (h.getType() == SHT_RPL_CRCS || h.getType() == SHT_RPL_FILEINFO) {
System.out.println("Skip special section " + h.getTypeAsString());
continue;
}
System.out.println("Saving " + h.getTypeAsString());
buffer = checkBuffer(buffer, newEnd); buffer = checkBuffer(buffer, newEnd);
buffer.position((int) shdr_data_elf_offset); buffer.position((int) shdr_data_elf_offset);
System.out.println("Write data " + String.format("%08X", shdr_data_elf_offset));
buffer.put(data); buffer.put(data);
offset = shdr_data_elf_offset; offset = shdr_data_elf_offset;
shdr_data_elf_offset += curSize; shdr_data_elf_offset += curSize;