static bool
print_iovec(struct tcb *tcp, void *elem_buf, size_t elem_size, void *data)
{
const kernel_ulong_t *iov;
kernel_ulong_t iov_buf[2], len;
struct print_iovec_config *c = data;
if (elem_size < sizeof(iov_buf)) {
iov_buf[0] = ((unsigned int *) elem_buf)[0];
iov_buf[1] = ((unsigned int *) elem_buf)[1];
iov = iov_buf;
} else {
iov = elem_buf;
}
tprints("{iov_base=");
len = iov[1];
switch (c->decode_iov) {
case IOV_DECODE_STR:
if (len > c->data_size)
len = c->data_size;
if (c->data_size != (kernel_ulong_t) -1)
c->data_size -= len;
printstrn(tcp, iov[0], len);
break;
case IOV_DECODE_NETLINK:
if (len > c->data_size)
len = c->data_size;
if (c->data_size != (kernel_ulong_t) -1)
c->data_size -= len;
/* assume that the descriptor is 1st syscall argument */
decode_netlink(tcp, tcp->u_arg[0], iov[0], len);
break;
default:
printaddr(iov[0]);
break;
}
tprintf(", iov_len=%" PRI_klu "}", iov[1]);
return true;
}
int
term_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
switch (code) {
/* struct termios */
case TCGETS:
#ifdef TCGETS2
case TCGETS2:
#endif
case TIOCGLCKTRMIOS:
if (entering(tcp))
return 0;
case TCSETS:
#ifdef TCSETS2
case TCSETS2:
#endif
case TCSETSW:
#ifdef TCSETSW2
case TCSETSW2:
#endif
case TCSETSF:
#ifdef TCSETSF2
case TCSETSF2:
#endif
case TIOCSLCKTRMIOS:
decode_termios(tcp, arg);
break;
/* struct termio */
case TCGETA:
if (entering(tcp))
return 0;
case TCSETA:
case TCSETAW:
case TCSETAF:
decode_termio(tcp, arg);
break;
/* struct winsize */
case TIOCGWINSZ:
if (entering(tcp))
return 0;
case TIOCSWINSZ:
decode_winsize(tcp, arg);
break;
/* struct ttysize */
#ifdef TIOCGSIZE
case TIOCGSIZE:
if (entering(tcp))
return 0;
case TIOCSSIZE:
decode_ttysize(tcp, arg);
break;
#endif
/* ioctls with a direct decodable arg */
case TCXONC:
tprints(", ");
printxval64(tcxonc_options, arg, "TC???");
break;
case TCFLSH:
tprints(", ");
printxval64(tcflsh_options, arg, "TC???");
break;
case TCSBRK:
case TCSBRKP:
case TIOCSCTTY:
tprintf(", %d", (int) arg);
break;
/* ioctls with an indirect parameter displayed as modem flags */
case TIOCMGET:
if (entering(tcp))
return 0;
case TIOCMBIS:
case TIOCMBIC:
case TIOCMSET:
decode_modem_flags(tcp, arg);
break;
/* ioctls with an indirect parameter displayed in decimal */
case TIOCGPGRP:
case TIOCGSID:
case TIOCGETD:
case TIOCGSOFTCAR:
case TIOCGPTN:
case FIONREAD:
case TIOCOUTQ:
#ifdef TIOCGEXCL
case TIOCGEXCL:
#endif
#ifdef TIOCGDEV
case TIOCGDEV:
#endif
if (entering(tcp))
return 0;
case TIOCSPGRP:
case TIOCSETD:
case FIONBIO:
case FIOASYNC:
case TIOCPKT:
case TIOCSSOFTCAR:
case TIOCSPTLCK:
tprints(", ");
printnum_int(tcp, arg, "%d");
break;
/* ioctls with an indirect parameter displayed as a char */
case TIOCSTI:
tprints(", ");
printstrn(tcp, arg, 1);
break;
/* ioctls with no parameters */
case TIOCSBRK:
case TIOCCBRK:
case TIOCCONS:
case TIOCNOTTY:
case TIOCEXCL:
case TIOCNXCL:
case FIOCLEX:
case FIONCLEX:
#ifdef TIOCVHANGUP
case TIOCVHANGUP:
#endif
#ifdef TIOCSSERIAL
case TIOCSSERIAL:
#endif
break;
/* ioctls which are unknown */
default:
return RVAL_DECODED;
}
return RVAL_IOCTL_DECODED;
}
static int
evdev_read_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t arg)
{
/* fixed-number fixed-length commands */
switch (code) {
case EVIOCGVERSION:
tprints(", ");
printnum_int(tcp, arg, "%#x");
return 1;
case EVIOCGEFFECTS:
tprints(", ");
printnum_int(tcp, arg, "%u");
return 1;
case EVIOCGID:
return getid_ioctl(tcp, arg);
# ifdef EVIOCGREP
case EVIOCGREP:
return repeat_ioctl(tcp, arg);
# endif
case EVIOCGKEYCODE:
return keycode_ioctl(tcp, arg);
# ifdef EVIOCGKEYCODE_V2
case EVIOCGKEYCODE_V2:
return keycode_V2_ioctl(tcp, arg);
# endif
}
/* fixed-number variable-length commands */
switch (_IOC_NR(code)) {
# ifdef EVIOCGMTSLOTS
case _IOC_NR(EVIOCGMTSLOTS(0)):
return mtslots_ioctl(tcp, code, arg);
# endif
case _IOC_NR(EVIOCGNAME(0)):
case _IOC_NR(EVIOCGPHYS(0)):
case _IOC_NR(EVIOCGUNIQ(0)):
tprints(", ");
if (syserror(tcp))
printaddr(arg);
else
printstrn(tcp, arg, tcp->u_rval);
return 1;
# ifdef EVIOCGPROP
case _IOC_NR(EVIOCGPROP(0)):
return decode_bitset(tcp, arg, evdev_prop,
INPUT_PROP_MAX, "PROP_???");
# endif
case _IOC_NR(EVIOCGSND(0)):
return decode_bitset(tcp, arg, evdev_snd,
SND_MAX, "SND_???");
# ifdef EVIOCGSW
case _IOC_NR(EVIOCGSW(0)):
return decode_bitset(tcp, arg, evdev_switch,
SW_MAX, "SW_???");
# endif
case _IOC_NR(EVIOCGKEY(0)):
return decode_bitset(tcp, arg, evdev_keycode,
KEY_MAX, "KEY_???");
case _IOC_NR(EVIOCGLED(0)):
return decode_bitset(tcp, arg, evdev_leds,
LED_MAX, "LED_???");
}
/* multi-number fixed-length commands */
if ((_IOC_NR(code) & ~ABS_MAX) == _IOC_NR(EVIOCGABS(0)))
return abs_ioctl(tcp, arg);
/* multi-number variable-length commands */
if ((_IOC_NR(code) & ~EV_MAX) == _IOC_NR(EVIOCGBIT(0, 0)))
return bit_ioctl(tcp, _IOC_NR(code) & EV_MAX, arg);
return 0;
}
