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/*
* Copyright ( c ) 1993 , 1994 , 1995 , 1996 Rick Sladkey < jrs @ world . std . com >
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* Copyright ( c ) 1996 - 2017 The strace developers .
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* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* 1. Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* 2. Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in the
* documentation and / or other materials provided with the distribution .
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission .
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ` ` AS IS ' ' AND ANY EXPRESS OR
* IMPLIED WARRANTIES , INCLUDING , BUT NOT LIMITED TO , THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED .
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING , BUT
* NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS OF USE ,
* DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY , OR TORT
* ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE .
*/
# include "defs.h"
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/*
* The C library ' s definition of struct termios might differ from
* the kernel one , and we need to use the kernel layout .
*/
# include <linux/termios.h>
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# include "xlat/tcxonc_options.h"
# include "xlat/tcflsh_options.h"
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# include "xlat/baud_options.h"
# include "xlat/modem_flags.h"
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static void
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decode_termios ( struct tcb * const tcp , const kernel_ulong_t addr )
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{
struct termios tios ;
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tprints ( " , " ) ;
if ( umove_or_printaddr ( tcp , addr , & tios ) )
return ;
if ( abbrev ( tcp ) ) {
tprints ( " { " ) ;
printxval ( baud_options , tios . c_cflag & CBAUD , " B??? " ) ;
tprintf ( " %sopost %sisig %sicanon %secho ...} " ,
( tios . c_oflag & OPOST ) ? " " : " - " ,
( tios . c_lflag & ISIG ) ? " " : " - " ,
( tios . c_lflag & ICANON ) ? " " : " - " ,
( tios . c_lflag & ECHO ) ? " " : " - " ) ;
return ;
}
tprintf ( " {c_iflags=%#lx, c_oflags=%#lx, " ,
( long ) tios . c_iflag , ( long ) tios . c_oflag ) ;
tprintf ( " c_cflags=%#lx, c_lflags=%#lx, " ,
( long ) tios . c_cflag , ( long ) tios . c_lflag ) ;
tprintf ( " c_line=%u, " , tios . c_line ) ;
if ( ! ( tios . c_lflag & ICANON ) )
tprintf ( " c_cc[VMIN]=%d, c_cc[VTIME]=%d, " ,
tios . c_cc [ VMIN ] , tios . c_cc [ VTIME ] ) ;
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tprints ( " c_cc= " ) ;
print_quoted_string ( ( char * ) tios . c_cc , NCCS , QUOTE_FORCE_HEX ) ;
tprints ( " } " ) ;
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}
static void
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decode_termio ( struct tcb * const tcp , const kernel_ulong_t addr )
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{
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struct termio tio ;
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int i ;
tprints ( " , " ) ;
if ( umove_or_printaddr ( tcp , addr , & tio ) )
return ;
if ( abbrev ( tcp ) ) {
tprints ( " { " ) ;
printxval ( baud_options , tio . c_cflag & CBAUD , " B??? " ) ;
tprintf ( " %sopost %sisig %sicanon %secho ...} " ,
( tio . c_oflag & OPOST ) ? " " : " - " ,
( tio . c_lflag & ISIG ) ? " " : " - " ,
( tio . c_lflag & ICANON ) ? " " : " - " ,
( tio . c_lflag & ECHO ) ? " " : " - " ) ;
return ;
}
tprintf ( " {c_iflags=%#lx, c_oflags=%#lx, " ,
( long ) tio . c_iflag , ( long ) tio . c_oflag ) ;
tprintf ( " c_cflags=%#lx, c_lflags=%#lx, " ,
( long ) tio . c_cflag , ( long ) tio . c_lflag ) ;
tprintf ( " c_line=%u, " , tio . c_line ) ;
# ifdef _VMIN
if ( ! ( tio . c_lflag & ICANON ) )
tprintf ( " c_cc[_VMIN]=%d, c_cc[_VTIME]=%d, " ,
tio . c_cc [ _VMIN ] , tio . c_cc [ _VTIME ] ) ;
# else /* !_VMIN */
if ( ! ( tio . c_lflag & ICANON ) )
tprintf ( " c_cc[VMIN]=%d, c_cc[VTIME]=%d, " ,
tio . c_cc [ VMIN ] , tio . c_cc [ VTIME ] ) ;
# endif /* !_VMIN */
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tprints ( " c_cc= \" " ) ;
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for ( i = 0 ; i < NCC ; i + + )
tprintf ( " \\ x%02x " , tio . c_cc [ i ] ) ;
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tprints ( " \" } " ) ;
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}
static void
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decode_winsize ( struct tcb * const tcp , const kernel_ulong_t addr )
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{
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struct winsize ws ;
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tprints ( " , " ) ;
if ( umove_or_printaddr ( tcp , addr , & ws ) )
return ;
tprintf ( " {ws_row=%d, ws_col=%d, ws_xpixel=%d, ws_ypixel=%d} " ,
ws . ws_row , ws . ws_col , ws . ws_xpixel , ws . ws_ypixel ) ;
}
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# ifdef TIOCGSIZE
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static void
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decode_ttysize ( struct tcb * const tcp , const kernel_ulong_t addr )
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{
struct ttysize ts ;
tprints ( " , " ) ;
if ( umove_or_printaddr ( tcp , addr , & ts ) )
return ;
tprintf ( " {ts_lines=%d, ts_cols=%d} " ,
ts . ts_lines , ts . ts_cols ) ;
}
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# endif
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static void
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decode_modem_flags ( struct tcb * const tcp , const kernel_ulong_t addr )
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{
int i ;
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tprints ( " , " ) ;
if ( umove_or_printaddr ( tcp , addr , & i ) )
return ;
tprints ( " [ " ) ;
printflags ( modem_flags , i , " TIOCM_??? " ) ;
tprints ( " ] " ) ;
}
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int
Change type of ioctl 3rd argument from long to kernel_ureg_t
* defs.h (DECL_IOCTL): Change arg type from long to kernel_ureg_t.
* dm.c (dm_known_ioctl, dm_ioctl): Likewise.
* file_ioctl.c (file_ioctl): Likewise.
* fs_x_ioctl.c (fs_x_ioctl): Likewise.
* ioctl.c (ioctl_decode): Likewise.
* loop.c (decode_loop_info, decode_loop_info64): Change addr type
from long to kernel_ureg_t.
(loop_ioctl): Change arg type from long to kernel_ureg_t.
* ptp.c (ptp_ioctl): Likewise.
* scsi.c (print_sg_io_v3_req, print_sg_io_v3_res, print_sg_io_v4_req,
print_sg_io_v4_res, scsi_ioctl): Likewise.
* sock.c (print_ifreq, sock_ioctl): Likewise.
(decode_ifconf): Change addr type from long to kernel_ureg_t.
* term.c (decode_termios, decode_termio, decode_winsize, decode_ttysize,
decode_modem_flags): Likewise.
(term_ioctl): Change arg type from long to kernel_ureg_t.
* ubi.c (ubi_ioctl): Likewise.
* userfaultfd.c (uffdio_ioctl): Likewise.
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term_ioctl ( struct tcb * const tcp , const unsigned int code ,
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const kernel_ulong_t arg )
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{
switch ( code ) {
/* struct termios */
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case TCGETS :
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# ifdef TCGETS2
case TCGETS2 :
# endif
case TIOCGLCKTRMIOS :
if ( entering ( tcp ) )
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return 0 ;
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ATTRIBUTE_FALLTHROUGH ;
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case TCSETS :
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# ifdef TCSETS2
case TCSETS2 :
# endif
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case TCSETSW :
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# ifdef TCSETSW2
case TCSETSW2 :
# endif
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case TCSETSF :
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# ifdef TCSETSF2
case TCSETSF2 :
# endif
case TIOCSLCKTRMIOS :
decode_termios ( tcp , arg ) ;
break ;
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/* struct termio */
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case TCGETA :
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if ( entering ( tcp ) )
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return 0 ;
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ATTRIBUTE_FALLTHROUGH ;
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case TCSETA :
case TCSETAW :
case TCSETAF :
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decode_termio ( tcp , arg ) ;
break ;
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/* struct winsize */
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case TIOCGWINSZ :
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if ( entering ( tcp ) )
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return 0 ;
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ATTRIBUTE_FALLTHROUGH ;
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case TIOCSWINSZ :
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decode_winsize ( tcp , arg ) ;
break ;
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/* struct ttysize */
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# ifdef TIOCGSIZE
case TIOCGSIZE :
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if ( entering ( tcp ) )
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return 0 ;
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ATTRIBUTE_FALLTHROUGH ;
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case TIOCSSIZE :
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decode_ttysize ( tcp , arg ) ;
break ;
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# endif
/* ioctls with a direct decodable arg */
case TCXONC :
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tprints ( " , " ) ;
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printxval64 ( tcxonc_options , arg , " TC??? " ) ;
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break ;
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case TCFLSH :
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tprints ( " , " ) ;
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printxval64 ( tcflsh_options , arg , " TC??? " ) ;
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break ;
case TCSBRK :
case TCSBRKP :
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case TIOCSCTTY :
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tprintf ( " , %d " , ( int ) arg ) ;
break ;
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/* ioctls with an indirect parameter displayed as modem flags */
case TIOCMGET :
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if ( entering ( tcp ) )
return 0 ;
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ATTRIBUTE_FALLTHROUGH ;
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case TIOCMBIS :
case TIOCMBIC :
case TIOCMSET :
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decode_modem_flags ( tcp , arg ) ;
break ;
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/* ioctls with an indirect parameter displayed in decimal */
case TIOCGPGRP :
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case TIOCGSID :
case TIOCGETD :
case TIOCGSOFTCAR :
case TIOCGPTN :
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case FIONREAD :
case TIOCOUTQ :
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# ifdef TIOCGEXCL
case TIOCGEXCL :
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# endif
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# ifdef TIOCGDEV
case TIOCGDEV :
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# endif
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if ( entering ( tcp ) )
return 0 ;
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ATTRIBUTE_FALLTHROUGH ;
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case TIOCSPGRP :
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case TIOCSETD :
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case FIONBIO :
case FIOASYNC :
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case TIOCPKT :
case TIOCSSOFTCAR :
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case TIOCSPTLCK :
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tprints ( " , " ) ;
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printnum_int ( tcp , arg , " %d " ) ;
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break ;
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/* ioctls with an indirect parameter displayed as a char */
case TIOCSTI :
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tprints ( " , " ) ;
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printstrn ( tcp , arg , 1 ) ;
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break ;
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/* ioctls with no parameters */
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case TIOCSBRK :
case TIOCCBRK :
case TIOCCONS :
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case TIOCNOTTY :
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case TIOCEXCL :
case TIOCNXCL :
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case FIOCLEX :
case FIONCLEX :
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# ifdef TIOCVHANGUP
case TIOCVHANGUP :
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# endif
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# ifdef TIOCSSERIAL
case TIOCSSERIAL :
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# endif
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break ;
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/* ioctls which are unknown */
default :
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return RVAL_DECODED ;
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}
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return RVAL_IOCTL_DECODED ;
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}