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/*****************************************************************************/
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/* pemagination: a (virtual) tour into portable bits and executable bytes */
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/* Copyright (C) 2013--2017 Z. Gilboa */
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/* Released under GPLv2 and GPLv3; see COPYING.PEMAGINE. */
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/*****************************************************************************/
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#include <psxtypes/psxtypes.h>
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#include <pemagine/pe_consts.h>
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#include <pemagine/pe_structs.h>
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#include <pemagine/pemagine.h>
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#include "pe_impl.h"
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static int pe_enum_modules(
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pe_enum_modules_callback * callback,
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const uintptr_t in_order_member_offset,
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void * context)
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{
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int ret;
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uintptr_t peb_tbl_addr;
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struct pe_peb_ldr_data * peb_ldr_data;
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struct pe_ldr_tbl_entry * ldr_tbl_entry;
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struct pe_list_entry * plist_head;
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struct pe_list_entry * plist_current;
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peb_ldr_data = (struct pe_peb_ldr_data *)pe_get_peb_ldr_data_address();
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plist_head = (struct pe_list_entry *)0;
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if ((intptr_t)peb_ldr_data == 0) {
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callback(
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0,
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PE_CALLBACK_REASON_ERROR,
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context);
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return -1;
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}
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ret = callback(
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0,
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PE_CALLBACK_REASON_INIT,
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context);
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if (ret <= 0)
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return ret;
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switch (in_order_member_offset) {
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case IN_LOAD_ORDER_MODULE_LIST_OFFSET:
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plist_head = peb_ldr_data->in_load_order_module_list.flink;
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break;
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case IN_MEMORY_ORDER_MODULE_LIST_OFFSET:
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plist_head = peb_ldr_data->in_memory_order_module_list.flink;
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break;
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case IN_INITIALIZATION_ORDER_MODULE_LIST_OFFSET:
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plist_head = peb_ldr_data->in_init_order_module_list.flink;
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break;
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}
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plist_current = plist_head;
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do {
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peb_tbl_addr = (uintptr_t)plist_current - in_order_member_offset;
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ldr_tbl_entry = (struct pe_ldr_tbl_entry *)peb_tbl_addr;
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ret = callback(
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ldr_tbl_entry,
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PE_CALLBACK_REASON_ITEM,
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context);
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if (ret <= 0)
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return ret;
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else
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plist_current = plist_current->flink;
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} while (plist_current != plist_head);
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ret = callback(
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ldr_tbl_entry,
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PE_CALLBACK_REASON_DONE,
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context);
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return ret;
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}
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int pe_enum_modules_in_load_order(pe_enum_modules_callback * fn, void * ctx)
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{
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return pe_enum_modules(fn,IN_LOAD_ORDER_MODULE_LIST_OFFSET,ctx);
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}
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int pe_enum_modules_in_memory_order(pe_enum_modules_callback * fn, void * ctx)
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{
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return pe_enum_modules(fn,IN_MEMORY_ORDER_MODULE_LIST_OFFSET,ctx);
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}
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int pe_enum_modules_in_init_order(pe_enum_modules_callback * fn, void * ctx)
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{
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return pe_enum_modules(fn,IN_INITIALIZATION_ORDER_MODULE_LIST_OFFSET,ctx);
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}
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