radare2/libr/core/cmd_open.c
2017-06-14 15:38:10 +02:00

722 lines
19 KiB
C

/* radare - LGPL - Copyright 2009-2016 - pancake */
#include "r_list.h"
#include "r_config.h"
#include "r_core.h"
#include "r_print.h"
#include "r_bin.h"
#include "r_debug.h"
static inline ut32 find_binfile_id_by_fd (RBin *bin, ut32 fd) {
RListIter *it;
RBinFile *bf;
r_list_foreach (bin->binfiles, it, bf) {
if (bf->fd == fd) {
return bf->id;
}
}
return UT32_MAX;
}
static void cmd_open_bin(RCore *core, const char *input) {
const char* help_msg[] = {
"Usage:", "ob", " # List open binary files backed by fd",
"ob", "", "List opened binary files and objid",
"ob", " [fd objid]", "Switch to open binary file by fd number and objid",
"obb", " [fd]", "Switch to open binfile by fd number",
"obr", " [baddr]", "Rebase current bin object",
"ob-", " [fd]", "Delete binfile by fd",
"obd", " [objid]", "Delete binary file by objid. Do nothing if only one loaded.",
"obo", " [objid]", "Switch to open binary file by objid",
NULL};
const char *value = NULL;
ut32 binfile_num = -1, binobj_num = -1;
switch (input[1]) {
case 0:
case 'l':
case 'j':
case '*':
r_core_bin_list (core, input[1]);
break;
case 'b': // "obb"
{
ut32 fd;
value = *(input + 3) ? input + 3 : NULL;
if (!value) {
eprintf ("Invalid fd number.");
break;
}
binfile_num = UT32_MAX;
fd = *value && r_is_valid_input_num_value (core->num, value) ?
r_get_input_num_value (core->num, value) : UT32_MAX;
binfile_num = find_binfile_id_by_fd (core->bin, fd);
if (binfile_num == UT32_MAX) {
eprintf ("Invalid fd number.");
break;
}
r_core_bin_raise (core, binfile_num, -1);
break;
}
case ' ':
{
ut32 fd;
int n;
const char *tmp;
char *v;
v = input[2] ? strdup (input + 2) : NULL;
if (!v) {
eprintf ("Invalid arguments");
break;
}
n = r_str_word_set0 (v);
if (n < 2 || n > 2) {
eprintf ("Invalid arguments\n");
eprintf ("usage: ob fd obj\n");
free (v);
break;
}
tmp = r_str_word_get0 (v, 0);
fd = *v && r_is_valid_input_num_value (core->num, tmp) ?
r_get_input_num_value (core->num, tmp) : UT32_MAX;
tmp = r_str_word_get0 (v, 1);
binobj_num = *v && r_is_valid_input_num_value (core->num, tmp) ?
r_get_input_num_value (core->num, tmp) : UT32_MAX;
binfile_num = find_binfile_id_by_fd (core->bin, fd);
r_core_bin_raise (core, binfile_num, binobj_num);
free (v);
break;
}
case 'r':
r_core_bin_rebase (core, r_num_math (core->num, input + 3));
r_core_cmd0 (core, ".is*");
break;
case 'o':
value = input[3] ? input + 3 : NULL;
if (!value) {
eprintf ("Invalid argument");
break;
}
binobj_num = *value && r_is_valid_input_num_value (core->num, value) ?
r_get_input_num_value (core->num, value) : UT32_MAX;
if (binobj_num == UT32_MAX) {
eprintf ("Invalid binobj_num");
break;
}
r_core_bin_raise (core, -1, binobj_num);
break;
case '-': // "ob-"
//FIXME this command doesn't remove nothing
if (input[2] == '*') {
//FIXME this only delete from a list but it doesn't free any space
r_cons_printf ("[i] Deleted %d binfiles\n",
r_bin_file_delete_all (core->bin));
} else {
ut32 fd;
value = input[3] ? input + 3 : NULL;
if (!value) {
eprintf ("Invalid argument\n");
break;
}
fd = *value && r_is_valid_input_num_value (core->num, value) ?
r_get_input_num_value (core->num, value) : UT32_MAX;
binfile_num = find_binfile_id_by_fd (core->bin, fd);
if (binfile_num == UT32_MAX) {
eprintf ("Invalid fd\n");
break;
}
if (r_core_bin_delete (core, binfile_num, -1)){
if (!r_bin_file_delete (core->bin, fd))
eprintf ("Cannot find an RBinFile associated with that fd.\n");
} else {
eprintf ("Couldn't erase because there must be 1 bin object loaded\n");
}
}
break;
case 'd': // backward compat, must be deleted
value = input[2] ? input + 2 : NULL;
if (!value) {
eprintf ("Invalid bin object number.");
break;
}
binobj_num = *value && r_is_valid_input_num_value (core->num, value) ?
r_get_input_num_value (core->num, value) : UT32_MAX;
if (binobj_num == UT32_MAX) {
eprintf ("Invalid bin object number.");
break;
}
r_core_bin_delete (core, -1, binobj_num);
break;
case '?':
r_core_cmd_help (core, help_msg);
break;
}
}
static void cmd_open_map (RCore *core, const char *input) {
const char* help_msg[] = {
"Usage:", "om[-] [arg]", " # map opened files",
"om", "", "list all defined IO maps",
"om", "-0x10000", "remove the map at given address",
"om", " fd addr [size]", "create new io map",
"omr", " fd|0xADDR ADDR", "relocate current map",
"om*", "", "show r2 commands to restore mapaddr",
NULL };
ut64 fd = 0LL;
ut64 addr = 0LL;
ut64 size = 0LL;
ut64 delta = 0LL;
char *s, *p, *q;
ut64 cur, new;
RIOMap *map = NULL;
const char *P;
switch (input[1]) {
case 'r':
if (input[2] != ' ')
break;
P = strchr (input+3, ' ');
if (P) {
cur = r_num_math (core->num, input+3);
new = r_num_math (core->num, P+1);
map = atoi (input+3)>0?
r_io_map_resolve (core->io, cur):
r_io_map_get (core->io, cur);
if (map) {
ut64 diff = map->to - map->from;
map->from = new;
map->to = new+diff;
} else eprintf ("Cannot find any map here\n");
} else {
cur = core->offset;
new = r_num_math (core->num, input+3);
map = r_io_map_resolve (core->io, core->file->desc->fd);
if (map) {
ut64 diff = map->to - map->from;
map->from = new;
map->to = new+diff;
} else eprintf ("Cannot find any map here\n");
}
break;
case ' ':
// i need to parse delta, offset, size
s = strdup (input+2);
p = strchr (s, ' ');
if (p) {
q = strchr (p+1, ' ');
*p = 0;
fd = r_num_math (core->num, s);
addr = r_num_math (core->num, p+1);
if (q) {
char *r = strchr (q+1, ' ');
*q = 0;
if (r) {
*r = 0;
size = r_num_math (core->num, q+1);
delta = r_num_math (core->num, r+1);
} else size = r_num_math (core->num, q+1);
} else size = r_io_size (core->io);
r_io_map_add (core->io, fd, 0, delta, addr, size);
} else eprintf ("Invalid use of om . See om? for help.");
free (s);
break;
case '-':
if (atoi (input + 3)>0) {
r_io_map_del (core->io,
r_num_math (core->num, input+2));
} else {
r_io_map_del_at (core->io,
r_num_math (core->num, input+2));
}
break;
case '\0':
r_io_map_list (core->io, 0);
break;
case '*':
r_io_map_list (core->io, 'r');
break;
default:
case '?':
r_core_cmd_help (core, help_msg);
break;
}
r_core_block_read (core);
}
R_API void r_core_file_reopen_in_malloc (RCore *core) {
RCoreFile *f;
RListIter *iter;
r_list_foreach (core->files, iter, f) {
ut64 sz = r_io_desc_size (core->io, f->desc);
ut8 *buf = calloc (sz, 1);
if (!buf) {
eprintf ("Cannot allocate %d\n", (int)sz);
continue;
}
(void)r_io_pread (core->io, 0, buf, sz);
char *url = r_str_newf ("malloc://%d", (int)sz);
RIODesc *desc = r_io_open (core->io, url, R_IO_READ | R_IO_WRITE, 0);
if (desc) {
r_io_close (core->io, f->desc);
f->desc = desc;
(void)r_io_write_at (core->io, 0, buf, sz);
} else {
eprintf ("Cannot open %s\n", url);
}
free (buf);
free (url);
break;
}
}
R_API void r_core_file_reopen_debug (RCore *core, const char *args) {
RCoreFile *ofile = core->file;
RBinFile *bf = NULL;
char *binpath = NULL;
if (!ofile || !ofile->desc || !ofile->desc->uri || !ofile->desc->fd) {
eprintf ("No file open?\n");
return;
}
bf = r_bin_file_find_by_fd (core->bin, ofile->desc->fd);
binpath = bf ? strdup (bf->file) : NULL;
if (!binpath) {
if (r_file_exists (ofile->desc->name)) {
binpath = strdup (ofile->desc->name);
}
}
if (!binpath) {
/* fallback to oo */
(void)r_core_cmd0 (core, "oo");
return;
}
int bits = core->assembler->bits;
char *oldname = r_file_abspath (binpath);
char *newfile = r_str_newf ("dbg://%s %s", oldname, args);
char *newfile2 = strdup (newfile);
core->file->desc->uri = newfile;
core->file->desc->referer = NULL;
//r_core_file_reopen (core, newfile, 0, 2);
r_config_set_i (core->config, "asm.bits", bits);
r_config_set_i (core->config, "cfg.debug", true);
r_core_file_reopen (core, newfile, 0, 2);
newfile = newfile2;
#if !__WINDOWS__
ut64 new_baddr = r_debug_get_baddr (core->dbg, newfile);
ut64 old_baddr = r_config_get_i (core->config, "bin.baddr");
if (old_baddr != new_baddr) {
r_bin_set_baddr (core->bin, new_baddr);
r_config_set_i (core->config, "bin.baddr", new_baddr);
r_core_bin_rebase (core, new_baddr);
// r_core_bin_load (core, newfile, new_baddr);
// reload symbols with new baddr
r_core_cmd0 (core, ".is*");
r_core_cmd0 (core, ".ir*");
r_core_cmd0 (core, ".iz*");
r_core_cmd0 (core, ".iM*");
}
#endif
r_core_cmd0 (core, "sr PC");
free (oldname);
free (binpath);
free (newfile);
}
static int cmd_open(void *data, const char *input) {
const char *help_msg[] = {
"Usage: o","[com- ] [file] ([offset])","",
"o","","list opened files",
"o=","","list opened files (ascii-art bars)",
"o*","","list opened files in r2 commands",
"oa","[?] [addr]","Open bin info from the given address",
"ob","[?] [lbdos] [...]","list open binary files backed by fd",
"oc"," [file]","open core file, like relaunching r2",
"oi","[-|idx]","alias for o, but using index instead of fd",
"oj","[?] ","list opened files in JSON format",
"oL","","list all IO plugins registered",
"om","[?]","create, list, remove IO maps",
"on"," [file] 0x4000","map raw file at 0x4000 (no r_bin involved)",
"oo","[?]","reopen current file (kill+fork in debugger)",
"oo","+","reopen current file in read-write",
"ood"," [args]","reopen in debugger mode (with args)",
"oo[bnm]"," [...]","see oo? for help",
"op"," ["R_LIB_EXT"]","open r2 native plugin (asm, bin, core, ..)",
"o"," 4","Switch to open file on fd 4",
"o","-1","close file descriptor 1",
"o-","*","close all opened files",
"o--","","close all files, analysis, binfiles, flags, same as !r2 --",
"o"," [file]","open [file] file in read-only",
"o","+ [file]","open file in read-write mode",
"o"," [file] 0x4000","map file at 0x4000",
NULL
};
const char* help_msg_oo[] = {
"Usage:", "oo[-] [arg]", " # map opened files",
"oo", "", "reopen current file",
"oo+", "", "reopen in read-write",
"oob", "", "reopen loading rbin info",
"ood", "", "reopen in debug mode",
"oom", "", "reopen in malloc://",
"oon", "", "reopen without loading rbin info",
"oon+", "", "reopen in read-write mode without loading rbin info",
"oonn", "", "reopen without loading rbin info, but with header flags",
"oonn+", "", "reopen in read-write mode without loading rbin info, but with",
NULL};
RCore *core = (RCore*)data;
int perms = R_IO_READ;
ut64 addr, baddr = r_config_get_i (core->config, "bin.baddr");
int nowarn = r_config_get_i (core->config, "file.nowarn");
RCoreFile *file;
int num = -1;
int isn = 0;
char *ptr;
RListIter *iter;
switch (*input) {
case '=':
r_io_desc_list_visual (core->io, core->offset, core->blocksize,
r_cons_get_size (NULL), r_config_get_i (core->config, "scr.color"));
break;
case '\0':
r_core_file_list (core, (int)(*input));
break;
case '*':
if ('?' == input[1]) {
const char *help_msg[] = {
"Usage:", "o* [> files.r2]", "",
"o*", "", "list opened files in r2 commands", NULL
};
r_core_cmd_help (core, help_msg);
break;
}
case 'j':
if ('?' == input[1]) {
const char *help_msg[] = {
"Usage:", "oj [~{}]", " # Use ~{} to indent the JSON",
"oj", "", "list opened files in JSON format", NULL
};
r_core_cmd_help (core, help_msg);
break;
}
r_core_file_list (core, (int)(*input));
break;
case 'L':
r_io_plugin_list (core->io);
break;
case 'a': // "oa"
if ('?' == input[1]) {
const char *help_msg[] = {
"Usage:", "oa [addr] ([filename])", " # load bininfo and update flags",
"oa", " [addr]", "Open bin info from the given address",
"oa", " [addr] [filename]", "Open file and load bin info at given address",NULL
};
r_core_cmd_help (core, help_msg);
break;
}
addr = core->offset;
if (input[1]) {
char *arg = strdup (input + 2);
char *filename = strchr (arg, ' ');
if (filename) {
RIODesc *desc = r_io_open (core->io, filename + 1, R_IO_READ, 0);
if (desc) {
*filename = 0;
addr = r_num_math (core->num, arg);
r_bin_load_io (core->bin, desc, addr, 0, 0);
r_io_close (core->io, desc);
r_core_cmd0 (core, ".is*");
} else {
eprintf ("Cannot open %s\n", filename + 1);
}
} else {
addr = r_num_math (core->num, input + 1);
RCoreFile *cf = r_core_file_cur (core);
if (cf && cf->desc) {
r_bin_load_io (core->bin, cf->desc, addr, 0, 0);
r_core_cmd0 (core, ".is*");
} else {
eprintf ("No file to load bin from?\n");
}
}
free (arg);
} else {
/* reload all bininfo */
r_list_foreach (core->files, iter, file) {
r_bin_load_io (core->bin, file->desc, addr, 0, 0);
r_core_cmd0 (core, ".is*");
break;
}
}
//r_bin_load_io_at_offset_as (core->bin, core->file->desc,
break;
case 'p':
if (r_sandbox_enable (0)) {
eprintf ("This command is disabled in sandbox mode\n");
return 0;
}
if (input[1]==' ') {
if (r_lib_open (core->lib, input+2) == R_FAIL) {
eprintf ("Oops\n");
}
} else {
eprintf ("Usage: op [r2plugin."R_LIB_EXT"]\n");
}
break;
case 'i': // "oi"
switch (input[1]) {
case ' ': // "oi "
{
RListIter *iter = NULL;
RCoreFile *f;
int nth = r_num_math (core->num, input + 2);
int count = 0;
r_list_foreach (core->files, iter, f) {
if (count == nth) {
r_io_raise (core->io, num);
break;
}
count++;
}
}
break;
case '-': // "oi-"
{
RListIter *iter = NULL;
RCoreFile *f;
int nth = r_num_math (core->num, input + 2);
int count = 0;
r_list_foreach (core->files, iter, f) {
if (count == nth) {
r_core_file_close_fd (core, f->desc->fd);
break;
}
count++;
}
}
break;
case 'j':
case '*':
case 0:
r_core_file_list (core, input[1]);
break;
}
break;
case '+':
perms = R_IO_READ|R_IO_WRITE;
/* fall through */
case 'f':
/* open file with spaces or special chars */
if (input[1] == ' ') {
const char *fn = input + 2;
file = r_core_file_open (core, fn, perms, 0);
if (file) {
r_core_bin_load (core, fn, UT64_MAX);
} else {
eprintf ("Cannot open (%s)\n", fn);
}
} else {
eprintf ("Usage: of [path-to-file]\n");
}
break;
case 'n': // "on"
// like in r2 -n
isn = 1;
if (input[1] == '*') {
r_core_file_list (core, 'n');
break;
}
/* fall through */
case ' ':
{
ut64 ba = 0L;
ut64 ma = 0L;
char *fn = strdup (input + (isn? 2:1));
if (!fn || !*fn) {
eprintf ("Usage: on [file]\n");
free (fn);
break;
}
ptr = strchr (fn, ' ');
if (ptr) {
*ptr++ = '\0';
char *ptr2 = strchr (ptr, ' ');
if (ptr2) {
*ptr2++ = 0;
ba = r_num_math (core->num, ptr2);
}
ma = r_num_math (core->num, ptr);
}
int num = atoi (input + 1);
if (num <= 0) {
if (fn && *fn) {
file = r_core_file_open (core, fn, perms, ma);
if (file) {
r_cons_printf ("%d\n", file->desc->fd);
// MUST CLEAN BEFORE LOADING
if (!isn) {
r_core_bin_load (core, fn, ba);
}
} else if (!nowarn) {
eprintf ("Cannot open file '%s'\n", fn);
}
} else {
eprintf ("Usage: on [file] ([maddr]) ([baddr])\n");
}
} else {
RListIter *iter = NULL;
RCoreFile *f;
core->switch_file_view = 0;
r_list_foreach (core->files, iter, f) {
if (f->desc->fd == num) {
r_io_raise (core->io, num);
core->switch_file_view = 1;
// raise rbinobj too
int binfile_num = find_binfile_id_by_fd (core->bin, num);
r_core_bin_raise (core, binfile_num, -1);
break;
}
}
}
r_core_block_read (core);
free (fn);
}
break;
case 'b':
cmd_open_bin (core, input);
break;
case '-': // o-
switch (input[1]) {
case '*': // "o-*"
r_core_file_close_fd (core, -1);
r_io_close_all (core->io);
r_bin_file_delete_all (core->bin);
r_list_purge(core->files);
break;
case '-': // "o--"
eprintf ("All core files, io, anal and flags info purged.\n");
r_core_file_close_fd (core, -1);
r_io_close_all (core->io);
r_bin_file_delete_all (core->bin);
// TODO: Move to a-- ?
r_anal_purge (core->anal);
// TODO: Move to f-- ?
r_flag_unset_all (core->flags);
// TODO: rbin?
break;
default:
if (!r_core_file_close_fd (core, atoi (input + 1))) {
eprintf ("Unable to find filedescriptor %d\n",
atoi (input + 1));
}
break;
case '?':
eprintf ("Usage: o-# or o-*, where # is the filedescriptor number\n");
}
// hackaround to fix invalid read
//r_core_cmd0 (core, "oo");
// uninit deref
//r_core_block_read (core);
break;
case 'm':
cmd_open_map (core, input);
break;
case 'o':
switch (input[1]) {
case 'm': // "oom"
r_core_file_reopen_in_malloc (core);
break;
case 'd': // "ood" : reopen in debugger
if ('?' == input[2]) {
const char *help_msg[] = {
"ood"," [args]","reopen in debugger mode (with args)",NULL
};
r_core_cmd_help (core, help_msg);
} else {
r_core_file_reopen_debug (core, input + 2);
}
break;
case 'b': // "oob" : reopen with bin info
if ('?' == input[2]) {
const char *help_msg[] = {
"oob", "", "reopen loading rbin info",NULL
};
r_core_cmd_help (core, help_msg);
} else {
r_core_file_reopen (core, input + 2, 0, 2);
}
break;
case 'n':
if ('n' == input[2]) {
if ('?' == input[3]) {
const char *help_msg[] = {
"oonn", "", "reopen without loading rbin info, but with header flags",NULL
};
r_core_cmd_help (core, help_msg);
break;
}
perms = (input[3] == '+')? R_IO_READ|R_IO_WRITE: 0;
r_core_file_reopen (core, input + 4, perms, 0);
// TODO: Use API instead of !rabin2 -rk
r_core_cmdf (core, ".!rabin2 -rk '' '%s'", core->file->desc->name);
} else if ('?' == input[2]) {
const char *help_msg[] = {
"oon", "", "reopen without loading rbin info",NULL
};
r_core_cmd_help (core, help_msg);
break;
}
perms = ('+' == input[2])? R_IO_READ|R_IO_WRITE: 0;
r_core_file_reopen (core, input + 3, perms, 0);
break;
case '+':
if ('?' == input[2]) {
const char *help_msg[] = {
"oo+", "", "reopen in read-write",NULL
};
r_core_cmd_help (core, help_msg);
} else {
r_core_file_reopen (core, input + 2, R_IO_READ | R_IO_WRITE, 1);
}
break;
case 0: // "oo"
r_core_file_reopen (core, input + 2, 0, 1);
break;
case '?':
default:
r_core_cmd_help (core, help_msg_oo);
break;
}
break;
case 'c':
if (input[1] && input[2]) {
if (r_sandbox_enable (0)) {
eprintf ("This command is disabled in sandbox mode\n");
return 0;
}
// memleak? lose all settings wtf
// if load fails does not fallbacks to previous file
r_core_fini (core);
r_core_init (core);
if (!r_core_file_open (core, input + 2, R_IO_READ, 0)) {
eprintf ("Cannot open file\n");
}
if (!r_core_bin_load (core, NULL, baddr)) {
r_config_set_i (core->config, "io.va", false);
}
} else {
eprintf ("Missing argument\n");
}
break;
case '?':
default:
r_core_cmd_help (core, help_msg);
break;
}
return 0;
}