radare2/libr/io/p/io_windbg.c

102 lines
2.4 KiB
C

// Copyright (c) 2014, The Lemon Man, All rights reserved.
// 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 <wind.h>
static bool __plugin_open(RIO *io, const char *file, bool many) {
return !strncmp (file, "windbg://", strlen ("windbg://"));
}
static RIODesc *__open(RIO *io, const char *file, int rw, int mode) {
void *io_ctx;
WindCtx *ctx;
if (!__plugin_open (io, file, 0))
return NULL;
if (!iob_select ("pipe")) {
eprintf("Could not initialize the IO backend\n");
return NULL;
}
io_ctx = iob_open (file + 9);
if (!io_ctx) {
eprintf ("Could not open the pipe\n");
return NULL;
}
ctx = wind_ctx_new (io_ctx);
if (!ctx)
return NULL;
return r_io_desc_new (&r_io_plugin_windbg, -1, file, true, mode, ctx);
}
static int __write(RIO *io, RIODesc *fd, const ut8 *buf, int count) {
if (!fd)
return -1;
if (wind_get_target(fd->data)) {
ut64 va;
if (!wind_va_to_pa (fd->data, io->off, &va))
return -1;
return wind_write_at_phys (fd->data, buf, va, count);
}
return wind_write_at (fd->data, buf, io->off, count);
}
static ut64 __lseek(RIO *io, RIODesc *fd, ut64 offset, int whence) {
return offset;
}
static int __read(RIO *io, RIODesc *fd, ut8 *buf, int count) {
if (!fd)
return -1;
if (wind_get_target(fd->data)) {
ut64 va;
if (!wind_va_to_pa (fd->data, io->off, &va))
return -1;
return wind_read_at_phys(fd->data, buf, va, count);
}
return wind_read_at(fd->data, buf, io->off, count);
}
static int __close(RIODesc *fd) {
wind_ctx_free (fd->data);
return true;
}
RIOPlugin r_io_plugin_windbg = {
.name = "windbg",
.desc = "Attach to a KD debugger",
.license = "LGPL3",
.open = __open,
.close = __close,
.read = __read,
.write = __write,
.check = __plugin_open,
.lseek = __lseek,
.isdbg = true,
};