radare2/libr/io/p/io_windbg.c
2018-09-15 22:52:12 +02:00

120 lines
2.8 KiB
C

// Copyright (c) 2014-2017, The Lemon Man, All rights reserved. LGPLv3
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3.0 of the License, or (at your option) any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this library.
#include <r_io.h>
#include <r_lib.h>
#include <r_socket.h>
#include <r_util.h>
#include <transport.h>
#include <windbg.h>
static bool __plugin_open(RIO *io, const char *file, bool many) {
return (!strncmp (file, "windbg://", 9));
}
static RIODesc *__open(RIO *io, const char *file, int rw, int mode) {
if (!__plugin_open (io, file, 0)) {
return NULL;
}
if (!iob_select ("pipe")) {
eprintf("Could not initialize the IO backend\n");
return NULL;
}
void *io_ctx = iob_open (file + 9);
if (!io_ctx) {
eprintf ("Could not open the pipe\n");
return NULL;
}
eprintf ("Opened pipe %s with fd %p\n", file + 9, io_ctx);
WindCtx *ctx = windbg_ctx_new (io_ctx);
if (!ctx) {
eprintf ("Failed to initialize windbg context\n");
return NULL;
}
return r_io_desc_new (io, &r_io_plugin_windbg, file, rw, mode, ctx);
}
static int __write(RIO *io, RIODesc *fd, const ut8 *buf, int count) {
if (!fd) {
return -1;
}
if (windbg_get_target (fd->data)) {
ut64 va;
if (!windbg_va_to_pa (fd->data, io->off, &va)) {
return -1;
}
return windbg_write_at_phys (fd->data, buf, va, count);
}
return windbg_write_at (fd->data, buf, io->off, count);
}
static ut64 __lseek(RIO *io, RIODesc *fd, ut64 offset, int whence) {
switch (whence) {
case R_IO_SEEK_SET:
return offset;
case R_IO_SEEK_CUR:
return io->off + offset;
case R_IO_SEEK_END:
return UT64_MAX;
default:
return offset;
}
}
static int __read(RIO *io, RIODesc *fd, ut8 *buf, int count) {
if (!fd) {
return -1;
}
if (windbg_get_target (fd->data)) {
ut64 va;
if (!windbg_va_to_pa (fd->data, io->off, &va)) {
return -1;
}
return windbg_read_at_phys (fd->data, buf, va, count);
}
return windbg_read_at (fd->data, buf, io->off, count);
}
static int __close(RIODesc *fd) {
windbg_ctx_free (fd->data);
return true;
}
RIOPlugin r_io_plugin_windbg = {
.name = "windbg",
.desc = "Attach to a KD debugger (windbg://socket)",
.license = "LGPL3",
.open = __open,
.close = __close,
.read = __read,
.check = __plugin_open,
.lseek = __lseek,
.write = __write,
.isdbg = true
};
#ifndef CORELIB
R_API RLibStruct radare_plugin = {
.type = R_LIB_TYPE_IO,
.data = &r_io_plugin_windbg,
.version = R2_VERSION
};
#endif