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added command wrapper for cp method ref insertion

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deeso 2014-04-09 23:33:17 -05:00
parent 307169886e
commit 1808ae3d22
1 changed files with 121 additions and 12 deletions
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133
libr/core/p/core_java.c
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@ -117,6 +117,8 @@ static int r_cmd_java_handle_list_code_references (RCore *core, const char *cmd)
static char * r_cmd_java_get_descriptor (RCore *core, RBinJavaObj *bin, ut16 idx);
static int r_cmd_java_handle_print_exceptions (RCore *core, const char *input);
static int r_cmd_java_handle_insert_method_ref (RCore *core, const char *input);
static int r_cmd_java_handle_yara_code_extraction_refs (RCore *core, const char *input);
typedef struct r_cmd_java_cms_t {
const char *name;
@ -211,6 +213,15 @@ typedef struct r_cmd_java_cms_t {
#define PRINT_EXC_DESC "list all exceptions to fields and methods in code sections"
#define PRINT_EXC_LEN 3
#define YARA_CODE_REFS "yc_w_refs"
#define YARA_CODE_REFS_ARGS "[name] [start] [count]"
#define YARA_CODE_REFS_DESC "yara code bytes extraction with a name starting at <start> to <count>"
#define YARA_CODE_REFS_LEN 9
#define INSERT_MREF "i_mref"
#define INSERT_MREF_ARGS "<classname> <name> <descriptor in form of (Lpref;)Lref;"
#define INSERT_MREF_DESC "append a method reference CP object to the end of the CP object array (creates all requisite objects)"
#define INSERT_MREF_LEN 6
static RCmdJavaCmd JAVA_CMDS[] = {
@ -231,6 +242,8 @@ static RCmdJavaCmd JAVA_CMDS[] = {
{SUMMARY_INFO, SUMMARY_INFO_ARGS, SUMMARY_INFO_DESC, REPLACE_CLASS_NAME_LEN, r_cmd_java_handle_summary_info},
{LIST_CODE_REFS, LIST_CODE_REFS_ARGS, LIST_CODE_REFS_DESC, LIST_CODE_REFS_LEN, r_cmd_java_handle_list_code_references},
{PRINT_EXC, PRINT_EXC_ARGS, PRINT_EXC_DESC, PRINT_EXC_LEN, r_cmd_java_handle_print_exceptions},
{YARA_CODE_REFS, YARA_CODE_REFS_ARGS, YARA_CODE_REFS_DESC, YARA_CODE_REFS_LEN, r_cmd_java_handle_yara_code_extraction_refs},
{INSERT_MREF, INSERT_MREF_ARGS, INSERT_MREF_DESC, INSERT_MREF_LEN, r_cmd_java_handle_insert_method_ref},
};
enum {
@ -251,7 +264,9 @@ enum {
SUMMARY_INFO_IDX = 14,
LIST_CODE_REFS_IDX = 15,
PRINT_EXC_IDX = 16,
END_CMDS = 17,
YARA_CODE_REFS_IDX = 17,
INSERT_MREF_IDX = 18,
END_CMDS = 19,
};
static ut8 r_cmd_java_obj_ref (const char *name, const char *class_name, ut32 len) {
@ -1690,18 +1705,112 @@ static int r_cmd_java_handle_list_code_references (RCore *core, const char *inpu
return R_TRUE;
}
/*
static int r_cmd_java_handle_yara_code_extraction_refs (RCore *core, const char *input) {
RAnal *anal = get_anal (core);
RBinJavaObj *bin = (RBinJavaObj *) r_cmd_java_get_bin_obj (anal);
const char *p = input? r_cmd_java_consumetok (input, ' ', -1): NULL, *n = NULL;
char *name = NULL;
ut64 addr = -1, count = -1;
int res = R_FALSE;
typedef struct r_bin_java_attr_exception_table_entry_t {
ut64 file_offset;
ut16 start_pc;
ut16 end_pc;
ut16 handler_pc;
ut16 catch_type;
ut64 size;
} RBinJavaExceptionEntry;
if (!bin) return res;
*/
if (!p) return res;
n = *p ? r_cmd_java_strtok (p, ' ', -1) : NULL;
name = n && p && p != n ? malloc (n-p+2) : NULL;
if (!name) return res;
memset (name, 0, n-p);
memcpy (name, p, n-p);
p = r_cmd_java_strtok (p, ' ', -1);
addr = p && *p && r_cmd_java_is_valid_input_num_value(core, p) ? r_cmd_java_get_input_num_value (core, p) : -1;
p = r_cmd_java_strtok (p, ' ', -1);
count = p && *p && r_cmd_java_is_valid_input_num_value(core, p) ? r_cmd_java_get_input_num_value (core, p) : -1;
if (name && count != (ut64) -1 && addr != (ut64) -1) {
// find function at addr
// find the start basic block
// read the bytes
// hexlify the bytes
// set the name = bytes
// print t
}
free (name);
return res;
}
static int r_cmd_java_handle_insert_method_ref (RCore *core, const char *input) {
RAnal *anal = get_anal (core);
RBinJavaObj *bin = (RBinJavaObj *) r_cmd_java_get_bin_obj (anal);
const char *p = input? r_cmd_java_consumetok (input, ' ', -1): NULL, *n = NULL;
char *classname=NULL, *name = NULL, *descriptor = NULL;
ut32 cn_sz = 0, n_sz = 0, d_sz = 0;
ut64 addr = -1, count = -1;
int res = R_FALSE;
if (!bin) return res;
if (!p) return res;
n = *p ? r_cmd_java_strtok (p, ' ', -1) : NULL;
classname = n && p && p != n ? malloc (n-p+1) : NULL;
cn_sz = n-p +1;
if (!classname) return res;
snprintf (classname, cn_sz, "%s", p);
//memset (classname, 0, cn_sz);
//memcpy (classname, p, n-p);
p = n+1;
n = *p ? r_cmd_java_strtok (p, ' ', -1) : NULL;
name = n && p && p != n ? malloc (n-p+1) : NULL;
n_sz = n-p +1;
if (!name) {
free (classname);
return res;
}
snprintf (name, n_sz, "%s", p);
//memset (name, 0, n_sz);
//memcpy (name, p, n-p);
p = n+1;
n = *p ? r_cmd_java_strtok (p, ' ', -1) : NULL;
if (n) {
descriptor = n && p && p != n ? malloc (n-p+1) : NULL;
d_sz = n-p +1;
}
else if (p && *p) {
d_sz = strlen (p) + 1;
descriptor = d_sz > 1 ? malloc (d_sz) : NULL;
}
if (!descriptor) {
free (classname);
free (name);
return res;
}
snprintf (descriptor, d_sz, "%s", p);
//memset (descriptor, 0, d_sz);
//memcpy (descriptor, p, n-p);
r_cons_printf ("Would be adding class name:%s, name: %s, descriptor: %s\n", classname, name, descriptor);
free (classname);
free (name);
free (descriptor);
res = R_TRUE;
return res;
}
static int r_cmd_java_handle_print_exceptions (RCore *core, const char *input) {
RAnal *anal = get_anal (core);
@ -1711,7 +1820,7 @@ static int r_cmd_java_handle_print_exceptions (RCore *core, const char *input) {
ut64 func_addr = -1;
RBinJavaExceptionEntry *exc_entry;
const char *p = r_cmd_java_consumetok (input, ' ', -1);
const char *p = input? r_cmd_java_consumetok (input, ' ', -1): NULL;
func_addr = p && *p && r_cmd_java_is_valid_input_num_value(core, p) ? r_cmd_java_get_input_num_value (core, p) : -1;
if (!bin) return R_FALSE;