From bbf9e9debd761b5c5024d8417ad38e1cadc70d5b Mon Sep 17 00:00:00 2001 From: midipix Date: Sat, 21 Nov 2015 21:17:19 -0500 Subject: driver integration 1/9: remove old (ad-hoc) driver, prepare source tree. --- src/main/pe_get_image_meta.c | 196 ------------------------------------------- 1 file changed, 196 deletions(-) delete mode 100644 src/main/pe_get_image_meta.c (limited to 'src/main/pe_get_image_meta.c') diff --git a/src/main/pe_get_image_meta.c b/src/main/pe_get_image_meta.c deleted file mode 100644 index 350abe3..0000000 --- a/src/main/pe_get_image_meta.c +++ /dev/null @@ -1,196 +0,0 @@ -#include -#include -#include -#include -#include - -#include -#include "perk_impl.h" - -static int pe_free_image_meta_impl (struct pe_image_meta * meta, int status) -{ - unsigned i; - - if (!meta) return 0; - - for (i=0; isummary.num_of_implibs; i++) - free(meta->idata[i].items); - - free(meta->idata); - free(meta->sectbl); - free(meta); - - return status; -} - -int pe_free_image_meta (struct pe_image_meta * meta) -{ - return pe_free_image_meta_impl(meta,0); -} - -int pe_get_named_section_index (const struct pe_image_meta * m, const char * name) -{ - int i; for (i=0; icoff.num_of_sections; i++) - if (!(strcmp(name,m->sectbl[i].name))) - return i; - - return -1; -} - -int pe_get_block_section_index (const struct pe_image_meta * m, const struct pe_block * block) -{ - int i; - uint32_t low,high; - - for (i=0; icoff.num_of_sections; i++) { - low = m->sectbl[i].virtual_addr; - high = low + m->sectbl[i].virtual_size; - - if ((block->rva >= low) && (block->rva + block->size <= high)) - return i; - } - - return -1; -} - -int pe_get_image_meta (const struct pe_raw_image * image, struct pe_image_meta ** meta) -{ - int i,j,s,status; - struct pe_image_meta * m; - char * base = image->addr; - - if (!(m = calloc(1,sizeof(*m)))) - return errno; - - m->ados = (struct pe_image_dos_hdr *)base; - - if ((status = (pe_read_dos_header(m->ados,&m->dos)))) - return pe_free_image_meta_impl(m,status); - - m->acoff = (struct pe_coff_file_hdr *)(base + m->dos.dos_lfanew); - - if ((status = (pe_read_coff_header(m->acoff,&m->coff)))) - return pe_free_image_meta_impl(m,status); - - m->aopt = (union pe_opt_hdr *)((char *)m->acoff + sizeof(m->coff)); - - if ((status = (pe_read_optional_header(m->aopt,&m->opt)))) - return pe_free_image_meta_impl(m,status); - - m->asectbl = (struct pe_sec_hdr *)((char *)m->aopt + m->coff.size_of_opt_hdr); - - if (!(m->sectbl = calloc(m->coff.num_of_sections,sizeof(*(m->sectbl))))) - return pe_free_image_meta_impl(m,status); - - for (i=0; icoff.num_of_sections; i++) - pe_read_section_header(&m->asectbl[i],&m->sectbl[i]); - - /* .edata */ - i = pe_get_named_section_index(m,".edata"); - s = pe_get_block_section_index(m,&m->opt.dirs.export_tbl); - - if ((i >= 0) && (i != s)) - return pe_free_image_meta_impl(m,PERK_MALFORMED_IMAGE); - - if (s >= 0) { - m->hedata = &m->sectbl[s]; - m->aedata = (struct pe_export_hdr *)(base + m->sectbl[s].ptr_to_raw_data - + m->opt.dirs.export_tbl.rva - m->sectbl[s].virtual_addr); - } else if (i >= 0) { - m->hedata = &m->sectbl[i]; - m->aedata = (struct pe_export_hdr *)(base + m->sectbl[i].ptr_to_raw_data); - } - - if (m->aedata) - pe_read_export_header(m->aedata,&m->edata); - - /* .idata */ - struct pe_import_hdr * pidata; - struct pe_import_lookup_item * pitem; - - i = pe_get_named_section_index(m,".idata"); - s = pe_get_block_section_index(m,&m->opt.dirs.import_tbl); - - if ((i >= 0) && (i != s)) - return pe_free_image_meta_impl(m,PERK_MALFORMED_IMAGE); - - if (s >= 0) { - m->hidata = &m->sectbl[s]; - m->aidata = (struct pe_import_hdr *)(base + m->sectbl[s].ptr_to_raw_data - + m->opt.dirs.import_tbl.rva - m->sectbl[s].virtual_addr); - } else if (i >= 0) { - m->hidata = &m->sectbl[i]; - m->aidata = (struct pe_import_hdr *)(base + m->sectbl[i].ptr_to_raw_data); - } - - if (m->aidata) { - /* num of implibs */ - for (pidata=m->aidata; pidata->name_rva[0]; pidata++,m->summary.num_of_implibs++); - - /* import headers */ - if (!(m->idata = calloc(m->summary.num_of_implibs,sizeof(*(m->idata))))) - return pe_free_image_meta_impl(m,status); - - for (i=0; isummary.num_of_implibs; i++) { - pe_read_import_header(&m->aidata[i],&m->idata[i]); - - m->idata[i].name = base + m->hidata->ptr_to_raw_data - + m->idata[i].name_rva - m->hidata->virtual_addr; - - if (m->idata[i].import_lookup_tbl_rva) - m->idata[i].aitems = (struct pe_import_lookup_item *)(base + m->hidata->ptr_to_raw_data - + m->idata[i].import_lookup_tbl_rva - m->hidata->virtual_addr); - - #ifdef PERK_DEVEL - printf("%s\n",m->idata[i].name); - #endif - - /* items */ - m->idata[i].count = 0; - if (m->idata[i].import_lookup_tbl_rva) { - for (pitem=m->idata[i].aitems; *(uint32_t *)pitem->u.hint_name_tbl_rva; pitem++) - m->idata[i].count++; - - if (!(m->idata[i].items = calloc(m->idata[i].count,sizeof(*(m->idata[i].items))))) - return pe_free_image_meta_impl(m,status); - } - - for (j=0; jidata[i].count; j++) { - if ((status = pe_read_import_lookup_item( - &(m->idata[i].aitems[j]), - &(m->idata[i].items[j]), - m->opt.std.magic))) - return pe_free_image_meta_impl(m,status); - - switch (m->opt.std.magic) { - case PE_MAGIC_PE32: - m->idata[i].items[j].flags = m->idata[i].items[j].u.import_lookup_entry_32; - break; - - case PE_MAGIC_PE32_PLUS: - m->idata[i].items[j].flags = (m->idata[i].items[j].u.import_lookup_entry_64 >> 32); - break; - } - - if (!m->idata[i].items[j].flags) { - struct pe_hint_name_entry * pentry = - (struct pe_hint_name_entry *)(base + m->hidata->ptr_to_raw_data - + m->idata[i].items[j].u.hint_name_tbl_rva - m->hidata->virtual_addr); - - m->idata[i].items[j].name = (char *)pentry->name; - #ifdef PERK_DEVEL - printf("%s\n",m->idata[i].items[j].name); - #endif - } - } - } - } - - /* image */ - m->image.addr = image->addr; - m->image.size = image->size; - - /* all done */ - *meta = m; - return 0; -} -- cgit v1.2.3