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/********************************************************/
/* ntapi: Native API core library */
/* Copyright (C) 2013,2014,2015 Z. Gilboa */
/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
/********************************************************/
#include <psxtypes/psxtypes.h>
#include <pemagine/pemagine.h>
#include <dalist/dalist.h>
#include <ntapi/ntapi.h>
struct callback_ctx {
struct dalist_ex * ldr_state_snapshot;
int32_t status;
};
static int __cdecl __add_module_base_address_to_list(
struct pe_ldr_tbl_entry * ldr_tbl_entry,
enum pe_callback_reason int_callback_reason,
void * context)
{
struct dalist_node * node;
struct callback_ctx * ctx;
ctx = (struct callback_ctx *)context;
if (int_callback_reason == PE_CALLBACK_REASON_ERROR) {
ctx->status = NT_STATUS_UNSUCCESSFUL;
return ctx->status;
} else if (int_callback_reason != PE_CALLBACK_REASON_ITEM) {
ctx->status = NT_STATUS_SUCCESS;
return 1;
} else if (!ldr_tbl_entry->dll_base) {
ctx->status = NT_STATUS_SUCCESS;
return 1;
}
ctx->status = dalist_get_node_by_key(
ctx->ldr_state_snapshot,
(struct dalist_node_ex **)&node,
(uintptr_t)ldr_tbl_entry->dll_base,
DALIST_NODE_TYPE_NEW,
0);
if (ctx->status != DALIST_OK)
return -1;
else
return 1;
}
int __cdecl __ntapi_ldr_create_state_snapshot(
__out struct dalist_ex * ldr_state_snapshot)
{
struct callback_ctx ctx;
if (!ldr_state_snapshot->free && !ldr_state_snapshot->memfn_ptr)
return NT_STATUS_BUFFER_TOO_SMALL;
else if (ldr_state_snapshot->info.list_nodes)
return NT_STATUS_INVALID_USER_BUFFER;
ctx.ldr_state_snapshot = ldr_state_snapshot;
pe_enum_modules_in_load_order(
__add_module_base_address_to_list,
&ctx);
return ctx.status;
}
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