mirror of
https://github.com/radareorg/radare2.git
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132 lines
2.9 KiB
C
132 lines
2.9 KiB
C
/* radare - LGPL - Copyright 2013-2017 - pancake */
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#include <r_types.h>
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#include <r_util.h>
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#include <r_lib.h>
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#include <r_bin.h>
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static bool check_bytes(const ut8 *buf, ut64 length) {
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if (buf && length > 0xffff && buf[0] != 0xcf && buf[0] != 0x7f) {
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const ut32 ep = length - 0x10000 + 0xfff0; /* F000:FFF0 address */
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/* hacky check to avoid detecting multidex bins as bios */
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/* need better fix for this */
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if (!memcmp (buf, "dex", 3)) {
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return 0;
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}
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/* Check if this a 'jmp' opcode */
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if ((buf[ep] == 0xea) || (buf[ep] == 0xe9)) {
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return 1;
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}
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}
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return 0;
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}
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static void *load_bytes(RBinFile *arch, const ut8 *buf, ut64 sz, ut64 loadaddr, Sdb *sdb) {
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if (!check_bytes (buf, sz)) {
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return NULL;
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}
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return R_NOTNULL;
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}
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static bool load(RBinFile *arch) {
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const ut8 *bytes = arch? r_buf_buffer (arch->buf): NULL;
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ut64 sz = arch? r_buf_size (arch->buf): 0;
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return check_bytes (bytes, sz);
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}
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static int destroy(RBinFile *arch) {
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// r_bin_bios_free ((struct r_bin_bios_obj_t*)arch->o->bin_obj);
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return true;
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}
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static ut64 baddr(RBinFile *arch) {
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return 0;
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}
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/* accelerate binary load */
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static RList *strings(RBinFile *arch) {
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return NULL;
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}
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static RBinInfo *info(RBinFile *arch) {
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RBinInfo *ret = NULL;
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if (!(ret = R_NEW0 (RBinInfo))) {
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return NULL;
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}
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ret->lang = NULL;
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ret->file = arch->file? strdup (arch->file): NULL;
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ret->type = strdup ("bios");
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ret->bclass = strdup ("1.0");
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ret->rclass = strdup ("bios");
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ret->os = strdup ("any");
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ret->subsystem = strdup ("unknown");
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ret->machine = strdup ("pc");
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ret->arch = strdup ("x86");
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ret->has_va = 1;
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ret->bits = 16;
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ret->big_endian = 0;
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ret->dbg_info = 0;
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return ret;
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}
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static RList *sections(RBinFile *arch) {
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RList *ret = NULL;
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RBinSection *ptr = NULL;
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if (!(ret = r_list_newf ((RListFree) free))) {
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return NULL;
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}
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// program headers is another section
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if (!(ptr = R_NEW0 (RBinSection))) {
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return ret;
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}
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strcpy (ptr->name, "bootblk");
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ptr->vsize = ptr->size = 0x10000;
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ptr->paddr = arch->buf->length - ptr->size;
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ptr->vaddr = 0xf0000;
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ptr->srwx = R_BIN_SCN_READABLE | R_BIN_SCN_WRITABLE |
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R_BIN_SCN_EXECUTABLE | R_BIN_SCN_MAP;
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ptr->add = true;
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r_list_append (ret, ptr);
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return ret;
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}
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static RList *entries(RBinFile *arch) {
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RList *ret;
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RBinAddr *ptr = NULL;
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if (!(ret = r_list_new ())) {
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return NULL;
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}
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ret->free = free;
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if (!(ptr = R_NEW0 (RBinAddr))) {
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return ret;
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}
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ptr->paddr = 0; // 0x70000;
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ptr->vaddr = 0xffff0;
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r_list_append (ret, ptr);
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return ret;
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}
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RBinPlugin r_bin_plugin_bios = {
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.name = "bios",
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.desc = "BIOS bin plugin",
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.license = "LGPL",
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.load = &load,
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.load_bytes = &load_bytes,
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.destroy = &destroy,
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.check_bytes = &check_bytes,
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.baddr = &baddr,
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.entries = entries,
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.sections = sections,
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.strings = &strings,
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.info = &info,
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};
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#ifndef CORELIB
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RlibStruct radare_plugin = {
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.type = R_LIB_TYPE_BIN,
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.data = &r_bin_plugin_bios,
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.version = R2_VERSION
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};
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#endif
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