mirror of
https://github.com/radareorg/radare2.git
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287 lines
7.0 KiB
C
287 lines
7.0 KiB
C
/* radare - LGPL - Copyright 2009-2014 - pancake, nibble */
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#include <r_anal.h>
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#include <r_util.h>
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#include <r_list.h>
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#include <r_io.h>
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#include "../config.h"
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R_LIB_VERSION(r_anal);
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static RAnalPlugin *anal_static_plugins[] =
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{ R_ANAL_STATIC_PLUGINS };
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/*
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static RAnalVarType anal_default_vartypes[] =
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{{ "char", "c", 1 },
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{ "byte", "b", 1 },
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{ "int", "i", 4 },
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{ "int32", "d", 4 },
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{ "int64", "q", 8 },
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{ "dword", "x", 4 },
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{ "float", "f", 4 },
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{ NULL, NULL, 0 }};
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*/
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static void r_anal_type_init(RAnal *anal) {
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Sdb *D = anal->sdb_types;
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sdb_set (D, "unsigned int", "type", 0);
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sdb_set (D, "unsigned char", "type", 0);
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sdb_set (D, "unsigned short", "type", 0);
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sdb_set (D, "int", "type", 0);
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sdb_set (D, "long", "type", 0);
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sdb_set (D, "void *", "type", 0);
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sdb_set (D, "char", "type", 0);
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sdb_set (D, "char *", "type", 0);
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sdb_set (D, "const char*", "type", 0);
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sdb_set (D, "type.unsigned int", "i", 0);
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sdb_set (D, "type.unsigned char", "b", 0);
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sdb_set (D, "type.unsigned short", "w", 0);
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sdb_set (D, "type.int", "d", 0);
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sdb_set (D, "type.long", "x", 0);
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sdb_set (D, "type.void *", "p", 0);
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sdb_set (D, "type.char", "x", 0);
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sdb_set (D, "type.char *", "*z", 0);
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sdb_set (D, "type.const char*", "*z", 0);
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}
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R_API RAnal *r_anal_new() {
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int i;
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RAnalPlugin *static_plugin;
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RAnal *anal = R_NEW0 (RAnal);
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if (!anal) return NULL;
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anal->nopskip = R_TRUE; // skip nops in code analysis
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anal->decode = R_TRUE; // slow slow if not used
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anal->sdb = sdb_new (NULL, NULL, 0);
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anal->sdb_fcns = sdb_ns (anal->sdb, "fcns", 1);
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anal->sdb_meta = sdb_ns (anal->sdb, "meta", 1);
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anal->sdb_hints = sdb_ns (anal->sdb, "hints", 1);
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anal->sdb_xrefs = sdb_ns (anal->sdb, "xrefs", 1);
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//anal->sdb_vars = sdb_ns (anal->sdb, "vars", 1); // its inside fcns right now
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//anal->sdb_args = sdb_ns (anal->sdb, "args", 1);
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//anal->sdb_ret = sdb_ns (anal->sdb, "ret", 1);
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//anal->sdb_locals = sdb_ns (anal->sdb, "locals", 1);
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anal->sdb_types = sdb_ns (anal->sdb, "types", 1);
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anal->printf = (PrintfCallback) printf;
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r_anal_type_init (anal);
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r_anal_xrefs_init (anal);
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anal->diff_thbb = R_ANAL_THRESHOLDBB;
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anal->diff_thfcn = R_ANAL_THRESHOLDFCN;
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anal->split = R_TRUE; // used from core
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anal->syscall = r_syscall_new ();
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r_io_bind_init (anal->iob);
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r_flag_bind_init (anal->flb);
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anal->reg = r_reg_new ();
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anal->lineswidth = 0;
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anal->fcns = r_anal_fcn_list_new ();
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#if USE_NEW_FCN_STORE
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anal->fcnstore = r_listrange_new ();
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#endif
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anal->refs = r_anal_ref_list_new ();
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anal->types = r_anal_type_list_new ();
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r_anal_set_bits (anal, 32);
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r_anal_set_big_endian (anal, R_FALSE);
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anal->plugins = r_list_new ();
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anal->plugins->free = (RListFree) r_anal_plugin_free;
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for (i=0; anal_static_plugins[i]; i++) {
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static_plugin = R_NEW (RAnalPlugin);
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*static_plugin = *anal_static_plugins[i];
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r_anal_add (anal, static_plugin);
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}
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/*
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for (i=0; anal_default_vartypes[i].name; i++)
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r_anal_var_type_add (anal, anal_default_vartypes[i].name,
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anal_default_vartypes[i].size, anal_default_vartypes[i].fmt);
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*/
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return anal;
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}
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R_API void r_anal_plugin_free (RAnalPlugin *p) {
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if (p && p->fini) {
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p->fini (p);
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}
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}
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R_API RAnal *r_anal_free(RAnal *a) {
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if (!a) return NULL;
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/* TODO: Free anals here */
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R_FREE (a->cpu);
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r_list_free (a->plugins);
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a->fcns->free = r_anal_fcn_free;
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r_list_free (a->fcns);
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// might provoke double frees since this is used in r_anal_fcn_insert()
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//r_listrange_free (a->fcnstore);
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r_list_free (a->refs);
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r_list_free (a->types);
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r_reg_free (a->reg);
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r_anal_op_free (a->queued);
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a->sdb = NULL;
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r_syscall_free (a->syscall);
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sdb_ns_free (a->sdb);
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if (a->esil)
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r_anal_esil_free (a->esil);
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// r_io_free(anal->iob.io); // need r_core (but recursive problem to fix)
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memset (a, 0, sizeof (RAnal));
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free (a);
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return NULL;
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}
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R_API void r_anal_set_user_ptr(RAnal *anal, void *user) {
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anal->user = user;
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}
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R_API int r_anal_add(RAnal *anal, RAnalPlugin *foo) {
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if (foo->init)
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foo->init (anal->user);
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r_list_append (anal->plugins, foo);
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return R_TRUE;
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}
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// TODO: Must be deprecated
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R_API int r_anal_list(RAnal *anal) {
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RAnalPlugin *h;
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RListIter *it;
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r_list_foreach (anal->plugins, it, h) {
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anal->printf ("anal %-10s %s\n", h->name, h->desc);
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}
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return R_FALSE;
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}
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R_API int r_anal_use(RAnal *anal, const char *name) {
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RListIter *it;
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RAnalPlugin *h;
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r_list_foreach (anal->plugins, it, h) {
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if (!strcmp (h->name, name)) {
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anal->cur = h;
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r_anal_set_reg_profile (anal);
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if (anal->esil) {
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r_anal_esil_free (anal->esil);
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anal->esil = NULL;
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}
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return R_TRUE;
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}
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}
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return R_FALSE;
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}
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R_API int r_anal_set_reg_profile(RAnal *anal) {
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if (anal && anal->cur && anal->cur->set_reg_profile)
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return anal->cur->set_reg_profile (anal);
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return R_FALSE;
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}
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R_API int r_anal_set_bits(RAnal *anal, int bits) {
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switch (bits) {
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case 8:
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case 16:
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case 32:
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case 64:
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anal->bits = bits;
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r_anal_set_reg_profile (anal);
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return R_TRUE;
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}
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return R_FALSE;
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}
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R_API void r_anal_set_cpu(RAnal *anal, const char *cpu) {
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free (anal->cpu);
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anal->cpu = cpu ? strdup (cpu) : NULL;
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}
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R_API int r_anal_set_big_endian(RAnal *anal, int bigend) {
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anal->big_endian = bigend;
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return R_TRUE;
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}
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R_API char *r_anal_strmask (RAnal *anal, const char *data) {
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RAnalOp *op;
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ut8 *buf;
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char *ret = NULL;
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int oplen, len, idx = 0;
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ret = strdup (data);
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buf = malloc (1+strlen (data));
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op = r_anal_op_new ();
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if (op == NULL || ret == NULL || buf == NULL) {
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free (op);
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free (buf);
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free (ret);
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return NULL;
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}
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len = r_hex_str2bin (data, buf);
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while (idx < len) {
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if ((oplen = r_anal_op (anal, op, 0, buf+idx, len-idx)) <1)
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break;
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switch (op->type) {
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case R_ANAL_OP_TYPE_CALL:
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case R_ANAL_OP_TYPE_UCALL:
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case R_ANAL_OP_TYPE_CJMP:
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case R_ANAL_OP_TYPE_JMP:
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case R_ANAL_OP_TYPE_UJMP:
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if (op->nopcode != 0)
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memset (ret+(idx+op->nopcode)*2,
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'.', (oplen-op->nopcode)*2);
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}
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idx += oplen;
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}
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free (op);
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free (buf);
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return ret;
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}
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R_API void r_anal_trace_bb(RAnal *anal, ut64 addr) {
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RAnalBlock *bbi;
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RAnalFunction *fcni;
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RListIter *iter, *iter2;
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r_list_foreach (anal->fcns, iter, fcni) {
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r_list_foreach (fcni->bbs, iter2, bbi) {
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if (addr>=bbi->addr && addr<(bbi->addr+bbi->size)) {
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bbi->traced = R_TRUE;
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break;
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}
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}
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}
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}
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R_API RList* r_anal_get_fcns (RAnal *anal) { return anal->fcns; }
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R_API int r_anal_project_load(RAnal *anal, const char *prjfile) {
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if (prjfile && *prjfile)
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return r_anal_xrefs_load (anal, prjfile);
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return R_FALSE;
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}
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R_API int r_anal_project_save(RAnal *anal, const char *prjfile) {
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if (!prjfile || !*prjfile)
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return R_FALSE;
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r_anal_xrefs_save (anal, prjfile);
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return R_TRUE;
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}
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R_API RAnalOp *r_anal_op_hexstr(RAnal *anal, ut64 addr, const char *str) {
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int len;
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ut8 *buf;
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RAnalOp *op = R_NEW0 (RAnalOp);
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if (!op) return NULL;
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buf = malloc (strlen (str)+1);
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if (!buf) {
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free (op);
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return NULL;
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}
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len = r_hex_str2bin (str, buf);
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r_anal_op (anal, op, addr, buf, len);
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return op;
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}
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R_API int r_anal_op_is_eob (RAnalOp *op) {
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switch (op->type) {
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case R_ANAL_OP_TYPE_JMP:
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case R_ANAL_OP_TYPE_UJMP:
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case R_ANAL_OP_TYPE_CJMP:
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case R_ANAL_OP_TYPE_RET:
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case R_ANAL_OP_TYPE_TRAP:
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return 1;
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}
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return 0;
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}
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