diff options
Diffstat (limited to 'usr/src/cmd/ssh/libssh/common/ttymodes.c')
-rw-r--r-- | usr/src/cmd/ssh/libssh/common/ttymodes.c | 480 |
1 files changed, 0 insertions, 480 deletions
diff --git a/usr/src/cmd/ssh/libssh/common/ttymodes.c b/usr/src/cmd/ssh/libssh/common/ttymodes.c deleted file mode 100644 index b20ab34ff3..0000000000 --- a/usr/src/cmd/ssh/libssh/common/ttymodes.c +++ /dev/null @@ -1,480 +0,0 @@ -/* - * Author: Tatu Ylonen <ylo@cs.hut.fi> - * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland - * All rights reserved - * - * As far as I am concerned, the code I have written for this software - * can be used freely for any purpose. Any derived versions of this - * software must be clearly marked as such, and if the derived work is - * incompatible with the protocol description in the RFC file, it must be - * called by a name other than "ssh" or "Secure Shell". - */ - -/* - * SSH2 tty modes support by Kevin Steves. - * Copyright (c) 2001 Kevin Steves. 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. - * - * 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. - */ - -/* - * Copyright 2009 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -/* - * Encoding and decoding of terminal modes in a portable way. - * Much of the format is defined in ttymodes.h; it is included multiple times - * into this file with the appropriate macro definitions to generate the - * suitable code. - */ - -#include "includes.h" -RCSID("$OpenBSD: ttymodes.c,v 1.18 2002/06/19 00:27:55 deraadt Exp $"); - -#include "packet.h" -#include "log.h" -#include "ssh1.h" -#include "compat.h" -#include "buffer.h" -#include "bufaux.h" - -#define TTY_OP_END 0 -/* - * uint32 (u_int) follows speed in SSH1 and SSH2 - */ -#define TTY_OP_ISPEED_PROTO1 192 -#define TTY_OP_OSPEED_PROTO1 193 -#define TTY_OP_ISPEED_PROTO2 128 -#define TTY_OP_OSPEED_PROTO2 129 - -/* - * Converts POSIX speed_t to a baud rate. The values of the - * constants for speed_t are not themselves portable. - */ -static int -speed_to_baud(speed_t speed) -{ - switch (speed) { - case B0: - return 0; - case B50: - return 50; - case B75: - return 75; - case B110: - return 110; - case B134: - return 134; - case B150: - return 150; - case B200: - return 200; - case B300: - return 300; - case B600: - return 600; - case B1200: - return 1200; - case B1800: - return 1800; - case B2400: - return 2400; - case B4800: - return 4800; - case B9600: - return 9600; - -#ifdef B19200 - case B19200: - return 19200; -#else /* B19200 */ -#ifdef EXTA - case EXTA: - return 19200; -#endif /* EXTA */ -#endif /* B19200 */ - -#ifdef B38400 - case B38400: - return 38400; -#else /* B38400 */ -#ifdef EXTB - case EXTB: - return 38400; -#endif /* EXTB */ -#endif /* B38400 */ - -#ifdef B7200 - case B7200: - return 7200; -#endif /* B7200 */ -#ifdef B14400 - case B14400: - return 14400; -#endif /* B14400 */ -#ifdef B28800 - case B28800: - return 28800; -#endif /* B28800 */ -#ifdef B57600 - case B57600: - return 57600; -#endif /* B57600 */ -#ifdef B76800 - case B76800: - return 76800; -#endif /* B76800 */ -#ifdef B115200 - case B115200: - return 115200; -#endif /* B115200 */ -#ifdef B230400 - case B230400: - return 230400; -#endif /* B230400 */ -#ifdef B460800 - case B460800: - return 460800; -#endif /* B460800 */ -#ifdef B921600 - case B921600: - return 921600; -#endif /* B921600 */ - default: - return 9600; - } -} - -/* - * Converts a numeric baud rate to a POSIX speed_t. - */ -static speed_t -baud_to_speed(int baud) -{ - switch (baud) { - case 0: - return B0; - case 50: - return B50; - case 75: - return B75; - case 110: - return B110; - case 134: - return B134; - case 150: - return B150; - case 200: - return B200; - case 300: - return B300; - case 600: - return B600; - case 1200: - return B1200; - case 1800: - return B1800; - case 2400: - return B2400; - case 4800: - return B4800; - case 9600: - return B9600; - -#ifdef B19200 - case 19200: - return B19200; -#else /* B19200 */ -#ifdef EXTA - case 19200: - return EXTA; -#endif /* EXTA */ -#endif /* B19200 */ - -#ifdef B38400 - case 38400: - return B38400; -#else /* B38400 */ -#ifdef EXTB - case 38400: - return EXTB; -#endif /* EXTB */ -#endif /* B38400 */ - -#ifdef B7200 - case 7200: - return B7200; -#endif /* B7200 */ -#ifdef B14400 - case 14400: - return B14400; -#endif /* B14400 */ -#ifdef B28800 - case 28800: - return B28800; -#endif /* B28800 */ -#ifdef B57600 - case 57600: - return B57600; -#endif /* B57600 */ -#ifdef B76800 - case 76800: - return B76800; -#endif /* B76800 */ -#ifdef B115200 - case 115200: - return B115200; -#endif /* B115200 */ -#ifdef B230400 - case 230400: - return B230400; -#endif /* B230400 */ -#ifdef B460800 - case 460800: - return B460800; -#endif /* B460800 */ -#ifdef B921600 - case 921600: - return B921600; -#endif /* B921600 */ - default: - return B9600; - } -} - -/* - * Encodes terminal modes for the terminal referenced by fd - * or tiop in a portable manner, and appends the modes to a packet - * being constructed. - */ -void -tty_make_modes(int fd, struct termios *tiop) -{ - struct termios tio; - int baud; - Buffer buf; - int tty_op_ospeed, tty_op_ispeed; - void (*put_arg)(Buffer *, u_int); - - buffer_init(&buf); - if (compat20) { - tty_op_ospeed = TTY_OP_OSPEED_PROTO2; - tty_op_ispeed = TTY_OP_ISPEED_PROTO2; - put_arg = buffer_put_int; - } else { - tty_op_ospeed = TTY_OP_OSPEED_PROTO1; - tty_op_ispeed = TTY_OP_ISPEED_PROTO1; - put_arg = (void (*)(Buffer *, u_int)) buffer_put_char; - } - - if (tiop == NULL) { - if (tcgetattr(fd, &tio) == -1) { - log("tcgetattr: %.100s", strerror(errno)); - goto end; - } - } else - tio = *tiop; - - /* Store input and output baud rates. */ - baud = speed_to_baud(cfgetospeed(&tio)); - debug3("tty_make_modes: ospeed %d", baud); - buffer_put_char(&buf, tty_op_ospeed); - buffer_put_int(&buf, baud); - baud = speed_to_baud(cfgetispeed(&tio)); - debug3("tty_make_modes: ispeed %d", baud); - buffer_put_char(&buf, tty_op_ispeed); - buffer_put_int(&buf, baud); - - /* Store values of mode flags. */ -#define TTYCHAR(NAME, OP) \ - debug3("tty_make_modes: %d %d", OP, tio.c_cc[NAME]); \ - buffer_put_char(&buf, OP); \ - put_arg(&buf, tio.c_cc[NAME]); - -#define TTYMODE(NAME, FIELD, OP) \ - debug3("tty_make_modes: %d %d", OP, ((tio.FIELD & NAME) != 0)); \ - buffer_put_char(&buf, OP); \ - put_arg(&buf, ((tio.FIELD & NAME) != 0)); - -#include "ttymodes.h" - -#undef TTYCHAR -#undef TTYMODE - -end: - /* Mark end of mode data. */ - buffer_put_char(&buf, TTY_OP_END); - if (compat20) - packet_put_string(buffer_ptr(&buf), buffer_len(&buf)); - else - packet_put_raw(buffer_ptr(&buf), buffer_len(&buf)); - buffer_free(&buf); -} - -/* - * Decodes terminal modes for the terminal referenced by fd in a portable - * manner from a packet being read. - */ -void -tty_parse_modes(int fd, int *n_bytes_ptr) -{ - struct termios tio; - int opcode, baud; - int n_bytes = 0; - int failure = 0; - u_int (*get_arg)(void); - int arg, arg_size; - - if (compat20) { - *n_bytes_ptr = packet_get_int(); - debug3("tty_parse_modes: SSH2 n_bytes %d", *n_bytes_ptr); - if (*n_bytes_ptr == 0) - return; - get_arg = packet_get_int; - arg_size = 4; - } else { - get_arg = packet_get_char; - arg_size = 1; - } - - /* - * Get old attributes for the terminal. We will modify these - * flags. I am hoping that if there are any machine-specific - * modes, they will initially have reasonable values. - */ - if (tcgetattr(fd, &tio) == -1) { - log("tcgetattr: %.100s", strerror(errno)); - failure = -1; - } - - for (;;) { - n_bytes += 1; - opcode = packet_get_char(); - switch (opcode) { - case TTY_OP_END: - goto set; - - /* XXX: future conflict possible */ - case TTY_OP_ISPEED_PROTO1: - case TTY_OP_ISPEED_PROTO2: - n_bytes += 4; - baud = packet_get_int(); - debug3("tty_parse_modes: ispeed %d", baud); - if (failure != -1 && cfsetispeed(&tio, baud_to_speed(baud)) == -1) - error("cfsetispeed failed for %d", baud); - break; - - /* XXX: future conflict possible */ - case TTY_OP_OSPEED_PROTO1: - case TTY_OP_OSPEED_PROTO2: - n_bytes += 4; - baud = packet_get_int(); - debug3("tty_parse_modes: ospeed %d", baud); - if (failure != -1 && cfsetospeed(&tio, baud_to_speed(baud)) == -1) - error("cfsetospeed failed for %d", baud); - break; - -#define TTYCHAR(NAME, OP) \ - case OP: \ - n_bytes += arg_size; \ - tio.c_cc[NAME] = get_arg(); \ - debug3("tty_parse_modes: %d %d", OP, tio.c_cc[NAME]); \ - break; -#define TTYMODE(NAME, FIELD, OP) \ - case OP: \ - n_bytes += arg_size; \ - if ((arg = get_arg())) \ - tio.FIELD |= NAME; \ - else \ - tio.FIELD &= ~NAME; \ - debug3("tty_parse_modes: %d %d", OP, arg); \ - break; - -#include "ttymodes.h" - -#undef TTYCHAR -#undef TTYMODE - - default: - debug("Ignoring unsupported tty mode opcode %d (0x%x)", - opcode, opcode); - if (!compat20) { - /* - * SSH1: - * Opcodes 1 to 127 are defined to have - * a one-byte argument. - * Opcodes 128 to 159 are defined to have - * an integer argument. - */ - if (opcode > 0 && opcode < 128) { - n_bytes += 1; - (void) packet_get_char(); - break; - } else if (opcode >= 128 && opcode < 160) { - n_bytes += 4; - (void) packet_get_int(); - break; - } else { - /* - * It is a truly undefined opcode (160 to 255). - * We have no idea about its arguments. So we - * must stop parsing. Note that some data may be - * left in the packet; hopefully there is nothing - * more coming after the mode data. - */ - log("parse_tty_modes: unknown opcode %d", opcode); - goto set; - } - } else { - /* - * SSH2: - * Opcodes 1 to 159 are defined to have - * a uint32 argument. - * Opcodes 160 to 255 are undefined and - * cause parsing to stop. - */ - if (opcode > 0 && opcode < 160) { - n_bytes += 4; - (void) packet_get_int(); - break; - } else { - log("parse_tty_modes: unknown opcode %d", opcode); - goto set; - } - } - } - } - -set: - if (*n_bytes_ptr != n_bytes) { - *n_bytes_ptr = n_bytes; - log("parse_tty_modes: n_bytes_ptr != n_bytes: %d %d", - *n_bytes_ptr, n_bytes); - return; /* Don't process bytes passed */ - } - if (failure == -1) - return; /* Packet parsed ok but tcgetattr() failed */ - - /* Set the new modes for the terminal. */ - if (tcsetattr(fd, TCSANOW, &tio) == -1) - log("Setting tty modes failed: %.100s", strerror(errno)); -} |