mirror of
https://github.com/radareorg/radare2.git
synced 2024-12-14 00:38:55 +00:00
361 lines
8.6 KiB
C
361 lines
8.6 KiB
C
/* radare - LGPL - Copyright 2008-2016 - pancake */
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <r_io.h>
|
|
#include <r_util.h>
|
|
#include <r_list.h>
|
|
|
|
R_API int r_io_map_count (RIO *io) {
|
|
return r_list_length (io->maps);
|
|
}
|
|
|
|
R_API RIOMap * r_io_map_new(RIO *io, int fd, int flags, ut64 delta, ut64 addr, ut64 size) {
|
|
RIOMap *map = R_NEW0 (RIOMap);
|
|
if (!map || ((UT64_MAX - size) < addr)) { //prevent interger-overflow
|
|
free (map);
|
|
return NULL;
|
|
}
|
|
map->fd = fd;
|
|
map->flags = flags;
|
|
map->delta = delta;
|
|
map->from = addr;
|
|
map->to = addr + size;
|
|
r_list_append (io->maps, map);
|
|
return map;
|
|
}
|
|
|
|
R_API void r_io_map_init(RIO *io) {
|
|
io->maps = r_list_new ();
|
|
}
|
|
|
|
R_API int r_io_map_sort(void *_a, void *_b) {
|
|
RIOMap *a = _a, *b = _b;
|
|
if (a->from == b->from) {
|
|
ut64 a_sz = a->to - a->from;
|
|
ut64 b_sz = b->to - b->from;
|
|
return a_sz < b_sz;
|
|
}
|
|
return a->from < b->from;
|
|
}
|
|
|
|
R_API int r_io_map_write_update(RIO *io, int fd, ut64 addr, ut64 len) {
|
|
int res = false;
|
|
RIOMap *map = NULL;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->fd == fd) break;
|
|
map = NULL;
|
|
}
|
|
if (map && map->to < addr+len) {
|
|
res = true;
|
|
map->to = addr+len;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
R_API int r_io_map_truncate_update(RIO *io, int fd, ut64 sz) {
|
|
int res = false;
|
|
RIOMap *map = NULL;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->fd == fd) break;
|
|
map = NULL;
|
|
}
|
|
if (map) {
|
|
res = true;
|
|
map->to = map->from + sz;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
R_API RIOMap *r_io_map_get(RIO *io, ut64 addr) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->from == map->to && addr >= map->from) {
|
|
return map;
|
|
}
|
|
if (addr >= map->from && addr < map->to) {
|
|
return map;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
R_API RIOMap *r_io_map_resolve(RIO *io, int fd) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
if (io && io->maps) {
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->fd == fd) {
|
|
return map;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
R_API RIOMap *r_io_map_resolve_from_list (RList *maps, int fd) {
|
|
RIOMap *map = NULL;
|
|
RListIter *iter;
|
|
if (maps) {
|
|
r_list_foreach (maps, iter, map) {
|
|
if (map->fd == fd) {
|
|
return map;
|
|
}
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static RList *r_io_map_get_maps_in_range_prepend(RIO *io, ut64 addr, ut64 endaddr) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
RList *maps = r_list_new ();
|
|
if (!maps) return NULL;
|
|
maps->free = NULL;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->from <= addr && addr < map->to) r_list_append(maps, map);
|
|
//if (map->from == addr && endaddr == map->to) r_list_prepend(maps, map);
|
|
if (map->from < endaddr && endaddr < map->to) r_list_prepend(maps, map);
|
|
if (addr <= map->from && map->to <= endaddr) r_list_prepend(maps, map);
|
|
}
|
|
return maps;
|
|
}
|
|
|
|
R_API RIOMap *r_io_map_resolve_in_range (RIO *io, ut64 addr, ut64 endaddr, int fd) {
|
|
RList *maps;
|
|
RIOMap *map;
|
|
if (!io || !io->maps)
|
|
return NULL;
|
|
maps = r_io_map_get_maps_in_range_prepend (io, addr, endaddr);
|
|
map = r_io_map_resolve_from_list (maps, fd);
|
|
r_list_free (maps);
|
|
return map;
|
|
}
|
|
|
|
R_API RList *r_io_map_get_maps_in_range(RIO *io, ut64 addr, ut64 endaddr) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
RList *maps = r_list_new ();
|
|
if (!maps) return NULL;
|
|
maps->free = NULL;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->from <= addr && addr < map->to) r_list_append(maps, map);
|
|
//if (map->from == addr && endaddr == map->to) r_list_append(maps, map);
|
|
if (map->from < endaddr && endaddr < map->to) r_list_append(maps, map);
|
|
if (addr <= map->from && map->to <= endaddr) r_list_append(maps, map);
|
|
}
|
|
return maps;
|
|
}
|
|
|
|
R_API RIOMap * r_io_map_get_first_map_in_range(RIO *io, ut64 addr, ut64 endaddr) {
|
|
RIOMap *map = NULL;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->from <= addr && addr < map->to) break;
|
|
//if (map->from == addr && endaddr == map->to) r_list_append(maps, map);
|
|
if (map->from < endaddr && endaddr < map->to) break;
|
|
if (addr <= map->from && map->to <= endaddr) break;
|
|
map = NULL;
|
|
}
|
|
return map;
|
|
}
|
|
|
|
R_API int r_io_map_del(RIO *io, int fd) {
|
|
RIOMap *map;
|
|
RListIter *iter, *tmp;
|
|
ut8 deleted = false;
|
|
if (io && io->maps) {
|
|
r_list_foreach_safe (io->maps, iter, tmp, map) {
|
|
if (fd==-1 || map->fd==fd) {
|
|
r_list_delete (io->maps, iter);
|
|
deleted = true;
|
|
}
|
|
}
|
|
}
|
|
return deleted;
|
|
}
|
|
|
|
R_API ut64 r_io_map_next(RIO *io, ut64 addr) {
|
|
ut64 next = UT64_MAX;
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->from > addr)
|
|
if (!next || map->from < next)
|
|
next = map->from;
|
|
}
|
|
return next;
|
|
}
|
|
|
|
R_API int r_io_map_del_at(RIO *io, ut64 addr) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
if (map->from <= addr && addr < map->to) {
|
|
r_list_delete (io->maps, iter);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
R_API RIOMap *r_io_map_add_next_available(RIO *io, int fd, int flags, ut64 delta, ut64 addr, ut64 size, ut64 load_align) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
ut64 next_addr = addr,
|
|
end_addr = next_addr + size;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
next_addr = R_MAX (next_addr, map->to+(load_align - (map->to % load_align)));
|
|
// XXX - This does not handle when file overflow 0xFFFFFFFF000 -> 0x00000FFF
|
|
// adding the check for the map's fd to see if this removes contention for
|
|
// memory mapping with multiple files.
|
|
|
|
if (map->fd == fd && ((map->from <= next_addr && next_addr < map->to) ||
|
|
(map->from <= end_addr && end_addr < map->to)) ) {
|
|
//return r_io_map_add(io, fd, flags, delta, map->to, size);
|
|
next_addr = map->to + (load_align - (map->to % load_align));
|
|
return r_io_map_add_next_available(io, fd, flags, delta, next_addr, size, load_align);
|
|
} else break;
|
|
}
|
|
return r_io_map_new (io, fd, flags, delta, next_addr, size);
|
|
}
|
|
|
|
R_API RIOMap *r_io_map_add(RIO *io, int fd, int flags, ut64 delta, ut64 addr, ut64 size) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
ut64 end_addr = addr + size;
|
|
r_list_foreach (io->maps, iter, map) {
|
|
// XXX - This does not handle when file overflow 0xFFFFFFFF000 -> 0x00000000
|
|
// keeping (fd, to, from) tuples as separate maps
|
|
if ( map->fd == fd && ((map->from <= addr && addr < map->to) ||
|
|
(map->from <= end_addr && end_addr < map->to)) )
|
|
//return r_io_map_add(io, fd, flags, delta, map->to, size);
|
|
return NULL;
|
|
}
|
|
return r_io_map_new (io, fd, flags, delta, addr, size);
|
|
}
|
|
|
|
R_API int r_io_map_exists_for_offset (RIO *io, ut64 off) {
|
|
int res = false;
|
|
RIOMap *im = NULL;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, im) {
|
|
if (im->from <= off && off < im->to) {
|
|
res = true;
|
|
break;
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
R_API ut64 r_io_map_select(RIO *io, ut64 off) {
|
|
int done = 0;
|
|
ut64 fd = -1;
|
|
ut64 paddr = off;
|
|
RIOMap *im = NULL;
|
|
RListIter *iter;
|
|
ut64 prevfrom = 0LL;
|
|
r_list_foreach (io->maps, iter, im) {
|
|
if (off>=im->from) {
|
|
if (prevfrom) {
|
|
if (im->from<prevfrom)
|
|
r_io_use_fd (io, im->fd);
|
|
} else {
|
|
r_io_use_fd (io, im->fd);
|
|
}
|
|
prevfrom = im->from;
|
|
}
|
|
if (off >= im->from && off < im->to) {
|
|
paddr = off - im->from + im->delta; //-im->from;
|
|
fd = im->fd;
|
|
done = 1;
|
|
if (fd == io->raised)
|
|
break;
|
|
}
|
|
}
|
|
if (done == 0) {
|
|
r_io_use_fd (io, fd);
|
|
r_io_seek (io, -1, R_IO_SEEK_SET);
|
|
return paddr;
|
|
}
|
|
if (fd == -1) {
|
|
r_io_seek (io, off, R_IO_SEEK_SET);
|
|
return off;
|
|
}
|
|
r_io_use_fd (io, fd);
|
|
if (io->debug) /* HACK */
|
|
r_io_seek (io, off, R_IO_SEEK_SET);
|
|
else r_io_seek (io, paddr, R_IO_SEEK_SET);
|
|
r_io_use_fd (io, fd);
|
|
return paddr;
|
|
}
|
|
|
|
R_API ut64 r_io_map_select_current_fd(RIO *io, ut64 off, int fd) {
|
|
int done = 0;
|
|
ut64 paddr = off;
|
|
RIOMap *im = NULL;
|
|
RListIter *iter;
|
|
r_list_foreach (io->maps, iter, im) {
|
|
if (im->fd != fd) continue;
|
|
if (off >= im->from && off < im->to) {
|
|
paddr = off - im->from + im->delta; //-im->from;
|
|
done = 1;
|
|
}
|
|
}
|
|
if (done == 0) {
|
|
r_io_seek (io, -1, R_IO_SEEK_SET);
|
|
return paddr;
|
|
}
|
|
if (fd == -1) {
|
|
r_io_seek (io, off, R_IO_SEEK_SET);
|
|
return off;
|
|
}
|
|
if (io->debug) { /* HACK */
|
|
r_io_seek (io, off, R_IO_SEEK_SET);
|
|
} else {
|
|
r_io_seek (io, paddr, R_IO_SEEK_SET);
|
|
}
|
|
return paddr;
|
|
}
|
|
|
|
R_API bool r_io_map_overlaps (RIO *io, RIODesc *fd, RIOMap *map) {
|
|
RListIter *iter;
|
|
RIOMap *im = NULL;
|
|
ut64 off = map->from;
|
|
if (!fd) return false;
|
|
r_list_foreach (io->maps, iter, im) {
|
|
if (im == map) continue;
|
|
if (off >= im->from && off < im->to) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
R_API void r_io_map_list (RIO *io, int mode) {
|
|
RIOMap *map;
|
|
RListIter *iter;
|
|
if (io && io->maps && io->cb_printf) {
|
|
r_list_foreach (io->maps, iter, map) {
|
|
switch (mode) {
|
|
case 1:
|
|
case 'r':
|
|
if (map->from) {
|
|
io->cb_printf ("omr 0x0 0x%"PFMT64x"\n", map->from);
|
|
}
|
|
break;
|
|
default:
|
|
io->cb_printf ("%i +0x%"PFMT64x" 0x%"PFMT64x
|
|
" - 0x%"PFMT64x" ; %s\n", map->fd,
|
|
map->delta, map->from, map->to,
|
|
r_str_rwx_i (map->flags));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|