mirror of
https://github.com/radareorg/radare2.git
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274 lines
6.9 KiB
C
274 lines
6.9 KiB
C
/* radare - LGPL - Copyright 2009-2016 - pancake, nibble */
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#include <r_anal.h>
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#include <r_cons.h>
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#include <sdb.h>
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#define DB anal->sdb_xrefs
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static const char *analref_toString(RAnalRefType type) {
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switch (type) {
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case R_ANAL_REF_TYPE_NULL:
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/* do nothing */
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break;
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case R_ANAL_REF_TYPE_CODE:
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return "code.jmp";
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case R_ANAL_REF_TYPE_CALL:
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return "code.call";
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case R_ANAL_REF_TYPE_DATA:
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return "data.mem";
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case R_ANAL_REF_TYPE_STRING:
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return "data.string";
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}
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return "unk";
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}
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static void XREFKEY(char * const key, const size_t key_len,
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char const * const kind, const RAnalRefType type, const ut64 addr) {
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char const * _sdb_type = analref_toString (type);
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snprintf (key, key_len, "%s.%s.0x%"PFMT64x, kind, _sdb_type, addr);
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}
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R_API bool r_anal_xrefs_save(RAnal *anal, const char *prjDir) {
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char *xrefs_path = r_str_newf ("%s" R_SYS_DIR "xrefs.sdb", prjDir);
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sdb_file (anal->sdb_xrefs, xrefs_path);
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free (xrefs_path);
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return sdb_sync (anal->sdb_xrefs);
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}
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R_API int r_anal_xrefs_set (RAnal *anal, const RAnalRefType type, ut64 from, ut64 to) {
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char key[33];
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if (!anal || !DB) {
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return false;
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}
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if (!anal->iob.is_valid_offset (anal->iob.io, to, 0)) {
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return false;
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}
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// unknown refs should not be stored. seems wrong
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if (type == R_ANAL_REF_TYPE_NULL) {
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return false;
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}
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XREFKEY (key, sizeof (key), "ref", type, from);
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sdb_array_add_num (DB, key, to, 0);
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XREFKEY (key, sizeof (key), "xref", type, to);
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sdb_array_add_num (DB, key, from, 0);
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return true;
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}
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R_API int r_anal_xrefs_deln (RAnal *anal, const RAnalRefType type, ut64 from, ut64 to) {
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char key[33];
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if (!anal || !DB) {
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return false;
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}
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XREFKEY (key, sizeof (key), "ref", type, from);
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sdb_array_remove_num (DB, key, to, 0);
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XREFKEY (key, sizeof (key), "xref", type, to);
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sdb_array_remove_num (DB, key, from, 0);
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return true;
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}
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static int _type = -1;
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static RList *_list = NULL;
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static char *_kpfx = NULL;
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static int xrefs_list_cb_any(RAnal *anal, const char *k, const char *v) {
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//ut64 dst, src = r_num_get (NULL, v);
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if (!strncmp (_kpfx, k, strlen (_kpfx))) {
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RAnalRef *ref = r_anal_ref_new ();
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if (ref) {
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ref->addr = r_num_get (NULL, k + strlen (_kpfx) + 1);
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ref->at = r_num_get (NULL, v); // XXX
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ref->type = _type;
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r_list_append (_list, ref);
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}
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}
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return true;
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}
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R_API int r_anal_xrefs_from (RAnal *anal, RList *list, const char *kind, const RAnalRefType type, ut64 addr) {
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char *next, *s, *str, *ptr, key[256];
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RAnalRef *ref = NULL;
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if (addr == UT64_MAX) {
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_type = type;
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_list = list;
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_kpfx = r_str_newf ("xref.%s", analref_toString (type));
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sdb_foreach (DB, (SdbForeachCallback)xrefs_list_cb_any, anal);
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free (_kpfx);
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return true;
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}
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XREFKEY(key, sizeof (key), kind, type, addr);
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str = sdb_get (DB, key, 0);
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if (!str) {
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return false;
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}
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for (next = ptr = str; next; ptr = next) {
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s = sdb_anext (ptr, &next);
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if (!(ref = r_anal_ref_new ())) {
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return false;
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}
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ref->addr = r_num_get (NULL, s);
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ref->at = addr;
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ref->type = type;
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r_list_append (list, ref);
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}
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free (str);
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return true;
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}
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R_API RList *r_anal_xrefs_get (RAnal *anal, ut64 to) {
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RList *list = r_list_new ();
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if (!list) {
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return NULL;
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}
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list->free = NULL; // XXX
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r_anal_xrefs_from (anal, list, "xref", R_ANAL_REF_TYPE_NULL, to);
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r_anal_xrefs_from (anal, list, "xref", R_ANAL_REF_TYPE_CODE, to);
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r_anal_xrefs_from (anal, list, "xref", R_ANAL_REF_TYPE_CALL, to);
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r_anal_xrefs_from (anal, list, "xref", R_ANAL_REF_TYPE_DATA, to);
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r_anal_xrefs_from (anal, list, "xref", R_ANAL_REF_TYPE_STRING, to);
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if (r_list_empty (list)) {
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r_list_free (list);
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list = NULL;
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}
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return list;
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}
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R_API RList *r_anal_refs_get (RAnal *anal, ut64 from) {
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RList *list = r_list_new ();
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if (!list) {
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return NULL;
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}
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list->free = NULL;
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_NULL, from);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_CODE, from);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_CALL, from);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_DATA, from);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_STRING, from);
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if (r_list_empty (list)) {
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r_list_free (list);
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list = NULL;
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}
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return list;
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}
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R_API RList *r_anal_xrefs_get_from (RAnal *anal, ut64 to) {
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RList *list = r_list_new ();
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if (!list) {
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return NULL;
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}
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list->free = NULL; // XXX
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_NULL, to);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_CODE, to);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_CALL, to);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_DATA, to);
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r_anal_xrefs_from (anal, list, "ref", R_ANAL_REF_TYPE_STRING, to);
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if (r_list_length (list)<1) {
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r_list_free (list);
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list = NULL;
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}
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return list;
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}
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R_API bool r_anal_xrefs_init(RAnal *anal) {
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sdb_reset (DB);
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if (DB) {
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sdb_array_set (DB, "types", -1, "code.jmp,code.call,data.mem,data.string", 0);
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return true;
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}
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return false;
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}
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static int xrefs_list_cb_rad(RAnal *anal, const char *k, const char *v) {
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ut64 dst, src = r_num_get (NULL, v);
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if (!strncmp (k, "ref.", 4)) {
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const char *p = r_str_rchr (k, NULL, '.');
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if (p) {
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dst = r_num_get (NULL, p + 1);
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anal->cb_printf ("ax 0x%"PFMT64x" 0x%"PFMT64x"\n", src, dst);
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}
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}
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return 1;
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}
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static bool xrefs_list_cb_json(RAnal *anal, bool is_first, const char *k, const char *v) {
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ut64 dst, src = r_num_get (NULL, v);
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if (strlen (k) > 8) {
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const char *p = r_str_rchr (k, NULL, '.');
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if (p) {
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if (is_first) {
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is_first = false;
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} else {
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anal->cb_printf (",");
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}
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dst = r_num_get (NULL, p + 1);
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sscanf (p + 1, "0x%"PFMT64x, &dst);
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anal->cb_printf ("\"%"PFMT64d"\":%"PFMT64d, src, dst);
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}
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}
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return is_first;
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}
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static int xrefs_list_cb_plain(RAnal *anal, const char *k, const char *v) {
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anal->cb_printf ("%s=%s\n", k, v);
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return 1;
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}
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R_API void r_anal_xrefs_list(RAnal *anal, int rad) {
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switch (rad) {
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case 1:
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case '*':
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sdb_foreach (DB, (SdbForeachCallback)xrefs_list_cb_rad, anal);
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break;
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case 'j':
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{
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anal->cb_printf ("{");
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bool is_first = true;
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SdbListIter *sdb_iter;
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SdbKv *kv;
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SdbList *sdb_list = sdb_foreach_match (DB, "^ref.", false);
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ls_foreach (sdb_list, sdb_iter, kv) {
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is_first = xrefs_list_cb_json (anal, is_first, kv->key, kv->value);
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}
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ls_free (sdb_list);
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anal->cb_printf ("}\n");
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}
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break;
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default:
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sdb_foreach (DB, (SdbForeachCallback)xrefs_list_cb_plain, anal);
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break;
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}
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}
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R_API const char *r_anal_xrefs_type_tostring (char type) {
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switch (type) {
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case R_ANAL_REF_TYPE_CODE:
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return "JMP";
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case R_ANAL_REF_TYPE_CALL:
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return "CALL";
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case R_ANAL_REF_TYPE_DATA:
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return "DATA";
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case R_ANAL_REF_TYPE_STRING:
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return "STRING";
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case R_ANAL_REF_TYPE_NULL:
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default:
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return "UNKNOWN";
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}
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}
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typedef struct {
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RAnal *anal;
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int count;
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} CountState;
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static int countcb(CountState *cs, const char *k, const char *v) {
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if (!strncmp (k, "ref.", 4))
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cs->count ++;
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return 1;
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}
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R_API int r_anal_xrefs_count(RAnal *anal) {
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CountState cs = { anal, 0 };
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sdb_foreach (DB, (SdbForeachCallback)countcb, &cs);
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return cs.count;
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}
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