diff options
Diffstat (limited to 'contrib/elf2dmp')
| -rw-r--r-- | contrib/elf2dmp/main.c | 28 | ||||
| -rw-r--r-- | contrib/elf2dmp/pe.h | 15 |
2 files changed, 41 insertions, 2 deletions
diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c index 2f6028d8eb..89f0c69ab0 100644 --- a/contrib/elf2dmp/main.c +++ b/contrib/elf2dmp/main.c @@ -17,6 +17,7 @@ #define SYM_URL_BASE "https://msdl.microsoft.com/download/symbols/" #define PDB_NAME "ntkrnlmp.pdb" +#define PE_NAME "ntoskrnl.exe" #define INITIAL_MXCSR 0x1f80 @@ -405,6 +406,25 @@ static int write_dump(struct pa_space *ps, return fclose(dmp_file); } +static bool pe_check_export_name(uint64_t base, void *start_addr, + struct va_space *vs) +{ + IMAGE_EXPORT_DIRECTORY export_dir; + const char *pe_name; + + if (pe_get_data_dir_entry(base, start_addr, IMAGE_FILE_EXPORT_DIRECTORY, + &export_dir, sizeof(export_dir), vs)) { + return false; + } + + pe_name = va_space_resolve(vs, base + export_dir.Name); + if (!pe_name) { + return false; + } + + return !strcmp(pe_name, PE_NAME); +} + static int pe_get_pdb_symstore_hash(uint64_t base, void *start_addr, char *hash, struct va_space *vs) { @@ -489,6 +509,7 @@ int main(int argc, char *argv[]) uint64_t KdDebuggerDataBlock; KDDEBUGGER_DATA64 *kdbg; uint64_t KdVersionBlock; + bool kernel_found = false; if (argc != 3) { eprintf("usage:\n\t%s elf_file dmp_file\n", argv[0]); @@ -536,11 +557,14 @@ int main(int argc, char *argv[]) } if (*(uint16_t *)nt_start_addr == 0x5a4d) { /* MZ */ - break; + if (pe_check_export_name(KernBase, nt_start_addr, &vs)) { + kernel_found = true; + break; + } } } - if (!nt_start_addr) { + if (!kernel_found) { eprintf("Failed to find NT kernel image\n"); err = 1; goto out_ps; diff --git a/contrib/elf2dmp/pe.h b/contrib/elf2dmp/pe.h index 807d006364..71126af1ac 100644 --- a/contrib/elf2dmp/pe.h +++ b/contrib/elf2dmp/pe.h @@ -88,6 +88,20 @@ typedef struct IMAGE_NT_HEADERS64 { IMAGE_OPTIONAL_HEADER64 OptionalHeader; } __attribute__ ((packed)) IMAGE_NT_HEADERS64; +typedef struct IMAGE_EXPORT_DIRECTORY { + uint32_t Characteristics; + uint32_t TimeDateStamp; + uint16_t MajorVersion; + uint16_t MinorVersion; + uint32_t Name; + uint32_t Base; + uint32_t NumberOfFunctions; + uint32_t NumberOfNames; + uint32_t AddressOfFunctions; + uint32_t AddressOfNames; + uint32_t AddressOfNameOrdinals; +} __attribute__ ((packed)) IMAGE_EXPORT_DIRECTORY; + typedef struct IMAGE_DEBUG_DIRECTORY { uint32_t Characteristics; uint32_t TimeDateStamp; @@ -102,6 +116,7 @@ typedef struct IMAGE_DEBUG_DIRECTORY { #define IMAGE_DEBUG_TYPE_CODEVIEW 2 #endif +#define IMAGE_FILE_EXPORT_DIRECTORY 0 #define IMAGE_FILE_DEBUG_DIRECTORY 6 typedef struct guid_t { |