term.c: enhance tty ioctl parser
Decode as much data on entering syscall as possible. * term.c (decode_termios, decode_termio, decode_winsize, decode_ttysize, decode_modem_flags): New functions. (term_ioctl): Use them. Update for RVAL_DECODED.
This commit is contained in:
parent
483c15f4be
commit
fd3cdc04d8
397
term.c
397
term.c
@ -32,269 +32,274 @@
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*/
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#include <linux/termios.h>
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#ifdef TCXONC
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# include "xlat/tcxonc_options.h"
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#endif
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#ifdef TCFLSH
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# include "xlat/tcflsh_options.h"
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#endif
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#include "xlat/tcxonc_options.h"
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#include "xlat/tcflsh_options.h"
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#include "xlat/baud_options.h"
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#include "xlat/modem_flags.h"
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int
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term_ioctl(struct tcb *tcp, const unsigned int code, long arg)
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static void
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decode_termios(struct tcb *tcp, const long addr)
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{
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struct termios tios;
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struct termio tio;
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struct winsize ws;
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#ifdef TIOCGSIZE
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struct ttysize ts;
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#endif
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int i;
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if (entering(tcp))
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return 0;
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if (!verbose(tcp))
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return;
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tprints(", ");
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if (umove_or_printaddr(tcp, addr, &tios))
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return;
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if (abbrev(tcp)) {
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tprints("{");
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printxval(baud_options, tios.c_cflag & CBAUD, "B???");
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tprintf(" %sopost %sisig %sicanon %secho ...}",
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(tios.c_oflag & OPOST) ? "" : "-",
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(tios.c_lflag & ISIG) ? "" : "-",
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(tios.c_lflag & ICANON) ? "" : "-",
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(tios.c_lflag & ECHO) ? "" : "-");
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return;
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}
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tprintf("{c_iflags=%#lx, c_oflags=%#lx, ",
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(long) tios.c_iflag, (long) tios.c_oflag);
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tprintf("c_cflags=%#lx, c_lflags=%#lx, ",
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(long) tios.c_cflag, (long) tios.c_lflag);
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tprintf("c_line=%u, ", tios.c_line);
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if (!(tios.c_lflag & ICANON))
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tprintf("c_cc[VMIN]=%d, c_cc[VTIME]=%d, ",
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tios.c_cc[VMIN], tios.c_cc[VTIME]);
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tprintf("c_cc=\"");
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for (i = 0; i < NCCS; i++)
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tprintf("\\x%02x", tios.c_cc[i]);
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tprintf("\"}");
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}
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static void
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decode_termio(struct tcb *tcp, const long addr)
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{
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struct termio tio;
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int i;
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if (!verbose(tcp))
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return;
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tprints(", ");
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if (umove_or_printaddr(tcp, addr, &tio))
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return;
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if (abbrev(tcp)) {
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tprints("{");
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printxval(baud_options, tio.c_cflag & CBAUD, "B???");
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tprintf(" %sopost %sisig %sicanon %secho ...}",
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(tio.c_oflag & OPOST) ? "" : "-",
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(tio.c_lflag & ISIG) ? "" : "-",
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(tio.c_lflag & ICANON) ? "" : "-",
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(tio.c_lflag & ECHO) ? "" : "-");
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return;
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}
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tprintf("{c_iflags=%#lx, c_oflags=%#lx, ",
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(long) tio.c_iflag, (long) tio.c_oflag);
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tprintf("c_cflags=%#lx, c_lflags=%#lx, ",
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(long) tio.c_cflag, (long) tio.c_lflag);
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tprintf("c_line=%u, ", tio.c_line);
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#ifdef _VMIN
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if (!(tio.c_lflag & ICANON))
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tprintf("c_cc[_VMIN]=%d, c_cc[_VTIME]=%d, ",
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tio.c_cc[_VMIN], tio.c_cc[_VTIME]);
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#else /* !_VMIN */
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if (!(tio.c_lflag & ICANON))
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tprintf("c_cc[VMIN]=%d, c_cc[VTIME]=%d, ",
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tio.c_cc[VMIN], tio.c_cc[VTIME]);
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#endif /* !_VMIN */
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tprintf("c_cc=\"");
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for (i = 0; i < NCC; i++)
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tprintf("\\x%02x", tio.c_cc[i]);
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tprintf("\"}");
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}
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static void
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decode_winsize(struct tcb *tcp, const long addr)
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{
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struct winsize ws;
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if (!verbose(tcp))
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return;
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tprints(", ");
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if (umove_or_printaddr(tcp, addr, &ws))
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return;
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tprintf("{ws_row=%d, ws_col=%d, ws_xpixel=%d, ws_ypixel=%d}",
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ws.ws_row, ws.ws_col, ws.ws_xpixel, ws.ws_ypixel);
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}
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#ifdef TIOCGSIZE
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static void
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decode_ttysize(struct tcb *tcp, const long addr)
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{
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struct ttysize ts;
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if (!verbose(tcp))
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return;
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tprints(", ");
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if (umove_or_printaddr(tcp, addr, &ts))
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return;
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tprintf("{ts_lines=%d, ts_cols=%d}",
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ts.ts_lines, ts.ts_cols);
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}
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#endif
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static void
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decode_modem_flags(struct tcb *tcp, const long addr)
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{
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int i;
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if (!verbose(tcp))
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return;
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tprints(", ");
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if (umove_or_printaddr(tcp, addr, &i))
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return;
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tprints("[");
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printflags(modem_flags, i, "TIOCM_???");
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tprints("]");
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}
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int
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term_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
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{
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switch (code) {
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/* ioctls with termios or termio args */
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#ifdef TCGETS
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/* struct termios */
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case TCGETS:
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if (syserror(tcp))
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#ifdef TCGETS2
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case TCGETS2:
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#endif
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case TIOCGLCKTRMIOS:
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if (entering(tcp))
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return 0;
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case TCSETS:
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#ifdef TCSETS2
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case TCSETS2:
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#endif
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case TCSETSW:
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#ifdef TCSETSW2
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case TCSETSW2:
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#endif
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case TCSETSF:
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if (!verbose(tcp) || umove(tcp, arg, &tios) < 0)
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return 0;
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if (abbrev(tcp)) {
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tprints(", {");
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printxval(baud_options, tios.c_cflag & CBAUD, "B???");
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tprintf(" %sopost %sisig %sicanon %secho ...}",
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(tios.c_oflag & OPOST) ? "" : "-",
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(tios.c_lflag & ISIG) ? "" : "-",
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(tios.c_lflag & ICANON) ? "" : "-",
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(tios.c_lflag & ECHO) ? "" : "-");
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return 1;
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}
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tprintf(", {c_iflags=%#lx, c_oflags=%#lx, ",
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(long) tios.c_iflag, (long) tios.c_oflag);
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tprintf("c_cflags=%#lx, c_lflags=%#lx, ",
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(long) tios.c_cflag, (long) tios.c_lflag);
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tprintf("c_line=%u, ", tios.c_line);
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if (!(tios.c_lflag & ICANON))
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tprintf("c_cc[VMIN]=%d, c_cc[VTIME]=%d, ",
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tios.c_cc[VMIN], tios.c_cc[VTIME]);
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tprintf("c_cc=\"");
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for (i = 0; i < NCCS; i++)
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tprintf("\\x%02x", tios.c_cc[i]);
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tprintf("\"}");
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return 1;
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#endif /* TCGETS */
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#ifdef TCSETSF2
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case TCSETSF2:
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#endif
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case TIOCSLCKTRMIOS:
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decode_termios(tcp, arg);
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break;
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#ifdef TCGETA
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/* struct termio */
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case TCGETA:
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if (syserror(tcp))
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if (entering(tcp))
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return 0;
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case TCSETA:
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case TCSETAW:
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case TCSETAF:
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if (!verbose(tcp) || umove(tcp, arg, &tio) < 0)
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return 0;
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if (abbrev(tcp)) {
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tprints(", {");
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printxval(baud_options, tio.c_cflag & CBAUD, "B???");
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tprintf(" %sopost %sisig %sicanon %secho ...}",
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(tio.c_oflag & OPOST) ? "" : "-",
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(tio.c_lflag & ISIG) ? "" : "-",
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(tio.c_lflag & ICANON) ? "" : "-",
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(tio.c_lflag & ECHO) ? "" : "-");
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return 1;
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}
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tprintf(", {c_iflags=%#lx, c_oflags=%#lx, ",
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(long) tio.c_iflag, (long) tio.c_oflag);
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tprintf("c_cflags=%#lx, c_lflags=%#lx, ",
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(long) tio.c_cflag, (long) tio.c_lflag);
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tprintf("c_line=%u, ", tio.c_line);
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#ifdef _VMIN
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if (!(tio.c_lflag & ICANON))
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tprintf("c_cc[_VMIN]=%d, c_cc[_VTIME]=%d, ",
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tio.c_cc[_VMIN], tio.c_cc[_VTIME]);
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#else /* !_VMIN */
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if (!(tio.c_lflag & ICANON))
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tprintf("c_cc[VMIN]=%d, c_cc[VTIME]=%d, ",
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tio.c_cc[VMIN], tio.c_cc[VTIME]);
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#endif /* !_VMIN */
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tprintf("c_cc=\"");
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for (i = 0; i < NCC; i++)
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tprintf("\\x%02x", tio.c_cc[i]);
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tprintf("\"}");
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return 1;
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#endif /* TCGETA */
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decode_termio(tcp, arg);
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break;
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/* ioctls with winsize or ttysize args */
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#ifdef TIOCGWINSZ
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/* struct winsize */
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case TIOCGWINSZ:
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if (syserror(tcp))
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if (entering(tcp))
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return 0;
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case TIOCSWINSZ:
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if (!verbose(tcp) || umove(tcp, arg, &ws) < 0)
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return 0;
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tprintf(", {ws_row=%d, ws_col=%d, ws_xpixel=%d, ws_ypixel=%d}",
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ws.ws_row, ws.ws_col, ws.ws_xpixel, ws.ws_ypixel);
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return 1;
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#endif /* TIOCGWINSZ */
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decode_winsize(tcp, arg);
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break;
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/* struct ttysize */
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#ifdef TIOCGSIZE
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case TIOCGSIZE:
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if (syserror(tcp))
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if (entering(tcp))
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return 0;
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case TIOCSSIZE:
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if (!verbose(tcp) || umove(tcp, arg, &ts) < 0)
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return 0;
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tprintf(", {ts_lines=%d, ts_cols=%d}",
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ts.ts_lines, ts.ts_cols);
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return 1;
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decode_ttysize(tcp, arg);
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break;
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#endif
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/* ioctls with a direct decodable arg */
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#ifdef TCXONC
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case TCXONC:
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tprints(", ");
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printxval(tcxonc_options, arg, "TC???");
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return 1;
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#endif
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#ifdef TCFLSH
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break;
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case TCFLSH:
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tprints(", ");
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printxval(tcflsh_options, arg, "TC???");
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return 1;
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#endif
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#ifdef TIOCSCTTY
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break;
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case TCSBRK:
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case TCSBRKP:
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case TIOCSCTTY:
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tprintf(", %ld", arg);
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return 1;
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#endif
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tprintf(", %d", (int) arg);
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break;
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/* ioctls with an indirect parameter displayed as modem flags */
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#ifdef TIOCMGET
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case TIOCMGET:
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if (entering(tcp))
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return 0;
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case TIOCMBIS:
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case TIOCMBIC:
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case TIOCMSET:
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if (umove(tcp, arg, &i) < 0)
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return 0;
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tprints(", [");
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printflags(modem_flags, i, "TIOCM_???");
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tprints("]");
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return 1;
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#endif /* TIOCMGET */
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decode_modem_flags(tcp, arg);
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break;
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/* ioctls with an indirect parameter displayed in decimal */
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case TIOCSPGRP:
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case TIOCGPGRP:
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#ifdef TIOCGETPGRP
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case TIOCGETPGRP:
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#endif
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#ifdef TIOCSETPGRP
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case TIOCSETPGRP:
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#endif
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#ifdef FIONREAD
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case FIONREAD:
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#endif
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case TIOCOUTQ:
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#ifdef FIONBIO
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case FIONBIO:
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#endif
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#ifdef FIOASYNC
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case FIOASYNC:
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#endif
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#ifdef FIOGETOWN
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case FIOGETOWN:
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#endif
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#ifdef FIOSETOWN
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case FIOSETOWN:
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#endif
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#ifdef TIOCGETD
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case TIOCGSID:
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case TIOCGETD:
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#endif
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#ifdef TIOCSETD
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case TIOCSETD:
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#endif
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#ifdef TIOCPKT
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case TIOCPKT:
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#endif
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#ifdef TIOCREMOTE
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case TIOCREMOTE:
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#endif
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#ifdef TIOCUCNTL
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case TIOCUCNTL:
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#endif
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#ifdef TIOCTCNTL
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case TIOCTCNTL:
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#endif
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#ifdef TIOCSIGNAL
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case TIOCSIGNAL:
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#endif
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#ifdef TIOCSSOFTCAR
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case TIOCSSOFTCAR:
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#endif
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#ifdef TIOCGSOFTCAR
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case TIOCGSOFTCAR:
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#endif
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#ifdef TIOCISPACE
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case TIOCISPACE:
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#endif
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#ifdef TIOCISIZE
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case TIOCISIZE:
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#endif
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#ifdef TIOCSINTR
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case TIOCSINTR:
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#endif
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#ifdef TIOCSPTLCK
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case TIOCSPTLCK:
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#endif
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#ifdef TIOCGPTN
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case TIOCGPTN:
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case FIONREAD:
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case TIOCOUTQ:
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#ifdef TIOCGEXCL
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case TIOCGEXCL:
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#endif
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#ifdef TIOCGDEV
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case TIOCGDEV:
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#endif
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if (entering(tcp))
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return 0;
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case TIOCSPGRP:
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case TIOCSETD:
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case FIONBIO:
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case FIOASYNC:
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case TIOCPKT:
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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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return 1;
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break;
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/* ioctls with an indirect parameter displayed as a char */
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#ifdef TIOCSTI
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case TIOCSTI:
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#endif
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tprints(", ");
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printstr(tcp, arg, 1);
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return 1;
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break;
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/* ioctls with no parameters */
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#ifdef TIOCNOTTY
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case TIOCNOTTY:
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#endif
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#ifdef FIOCLEX
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case FIOCLEX:
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#endif
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#ifdef FIONCLEX
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case FIONCLEX:
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#endif
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#ifdef TIOCCONS
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case TIOCSBRK:
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case TIOCCBRK:
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case TIOCCONS:
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case TIOCNOTTY:
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case TIOCEXCL:
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case TIOCNXCL:
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case FIOCLEX:
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case FIONCLEX:
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#ifdef TIOCVHANGUP
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case TIOCVHANGUP:
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#endif
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return 1;
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#ifdef TIOCSSERIAL
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case TIOCSSERIAL:
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#endif
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break;
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/* ioctls which are unknown */
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default:
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return 0;
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return RVAL_DECODED;
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}
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return RVAL_DECODED | 1;
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}
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