Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 5 | * |
| 6 | * As far as I am concerned, the code I have written for this software |
| 7 | * can be used freely for any purpose. Any derived versions of this |
| 8 | * software must be clearly marked as such, and if the derived work is |
| 9 | * incompatible with the protocol description in the RFC file, it must be |
| 10 | * called by a name other than "ssh" or "Secure Shell". |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 11 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 12 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 13 | /* |
| 14 | * SSH2 tty modes support by Kevin Steves. |
| 15 | * Copyright (c) 2001 Kevin Steves. All rights reserved. |
| 16 | * |
| 17 | * Redistribution and use in source and binary forms, with or without |
| 18 | * modification, are permitted provided that the following conditions |
| 19 | * are met: |
| 20 | * 1. Redistributions of source code must retain the above copyright |
| 21 | * notice, this list of conditions and the following disclaimer. |
| 22 | * 2. Redistributions in binary form must reproduce the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer in the |
| 24 | * documentation and/or other materials provided with the distribution. |
| 25 | * |
| 26 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 27 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 28 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 29 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 30 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 31 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 32 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 33 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 34 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 35 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 36 | */ |
| 37 | |
| 38 | /* |
| 39 | * Encoding and decoding of terminal modes in a portable way. |
| 40 | * Much of the format is defined in ttymodes.h; it is included multiple times |
| 41 | * into this file with the appropriate macro definitions to generate the |
| 42 | * suitable code. |
| 43 | */ |
| 44 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 45 | #include "includes.h" |
Ben Lindstrom | cb72e4f | 2002-06-21 00:41:51 +0000 | [diff] [blame] | 46 | RCSID("$OpenBSD: ttymodes.c,v 1.18 2002/06/19 00:27:55 deraadt Exp $"); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 47 | |
| 48 | #include "packet.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 49 | #include "log.h" |
| 50 | #include "ssh1.h" |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 51 | #include "compat.h" |
| 52 | #include "buffer.h" |
| 53 | #include "bufaux.h" |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 54 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 55 | #define TTY_OP_END 0 |
| 56 | /* |
| 57 | * uint32 (u_int) follows speed in SSH1 and SSH2 |
| 58 | */ |
| 59 | #define TTY_OP_ISPEED_PROTO1 192 |
| 60 | #define TTY_OP_OSPEED_PROTO1 193 |
| 61 | #define TTY_OP_ISPEED_PROTO2 128 |
| 62 | #define TTY_OP_OSPEED_PROTO2 129 |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 63 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 64 | /* |
| 65 | * Converts POSIX speed_t to a baud rate. The values of the |
| 66 | * constants for speed_t are not themselves portable. |
| 67 | */ |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 68 | static int |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 69 | speed_to_baud(speed_t speed) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 70 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 71 | switch (speed) { |
| 72 | case B0: |
| 73 | return 0; |
| 74 | case B50: |
| 75 | return 50; |
| 76 | case B75: |
| 77 | return 75; |
| 78 | case B110: |
| 79 | return 110; |
| 80 | case B134: |
| 81 | return 134; |
| 82 | case B150: |
| 83 | return 150; |
| 84 | case B200: |
| 85 | return 200; |
| 86 | case B300: |
| 87 | return 300; |
| 88 | case B600: |
| 89 | return 600; |
| 90 | case B1200: |
| 91 | return 1200; |
| 92 | case B1800: |
| 93 | return 1800; |
| 94 | case B2400: |
| 95 | return 2400; |
| 96 | case B4800: |
| 97 | return 4800; |
| 98 | case B9600: |
| 99 | return 9600; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 100 | |
| 101 | #ifdef B19200 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 102 | case B19200: |
| 103 | return 19200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 104 | #else /* B19200 */ |
| 105 | #ifdef EXTA |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 106 | case EXTA: |
| 107 | return 19200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 108 | #endif /* EXTA */ |
| 109 | #endif /* B19200 */ |
| 110 | |
| 111 | #ifdef B38400 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 112 | case B38400: |
| 113 | return 38400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 114 | #else /* B38400 */ |
| 115 | #ifdef EXTB |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 116 | case EXTB: |
| 117 | return 38400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 118 | #endif /* EXTB */ |
| 119 | #endif /* B38400 */ |
| 120 | |
| 121 | #ifdef B7200 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 122 | case B7200: |
| 123 | return 7200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 124 | #endif /* B7200 */ |
| 125 | #ifdef B14400 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 126 | case B14400: |
| 127 | return 14400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 128 | #endif /* B14400 */ |
| 129 | #ifdef B28800 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 130 | case B28800: |
| 131 | return 28800; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 132 | #endif /* B28800 */ |
| 133 | #ifdef B57600 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 134 | case B57600: |
| 135 | return 57600; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 136 | #endif /* B57600 */ |
| 137 | #ifdef B76800 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 138 | case B76800: |
| 139 | return 76800; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 140 | #endif /* B76800 */ |
| 141 | #ifdef B115200 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 142 | case B115200: |
| 143 | return 115200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 144 | #endif /* B115200 */ |
| 145 | #ifdef B230400 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 146 | case B230400: |
| 147 | return 230400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 148 | #endif /* B230400 */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 149 | default: |
| 150 | return 9600; |
| 151 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 152 | } |
| 153 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 154 | /* |
| 155 | * Converts a numeric baud rate to a POSIX speed_t. |
| 156 | */ |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 157 | static speed_t |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 158 | baud_to_speed(int baud) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 159 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 160 | switch (baud) { |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 161 | case 0: |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 162 | return B0; |
| 163 | case 50: |
| 164 | return B50; |
| 165 | case 75: |
| 166 | return B75; |
| 167 | case 110: |
| 168 | return B110; |
| 169 | case 134: |
| 170 | return B134; |
| 171 | case 150: |
| 172 | return B150; |
| 173 | case 200: |
| 174 | return B200; |
| 175 | case 300: |
| 176 | return B300; |
| 177 | case 600: |
| 178 | return B600; |
| 179 | case 1200: |
| 180 | return B1200; |
| 181 | case 1800: |
| 182 | return B1800; |
| 183 | case 2400: |
| 184 | return B2400; |
| 185 | case 4800: |
| 186 | return B4800; |
| 187 | case 9600: |
| 188 | return B9600; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 189 | |
| 190 | #ifdef B19200 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 191 | case 19200: |
| 192 | return B19200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 193 | #else /* B19200 */ |
| 194 | #ifdef EXTA |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 195 | case 19200: |
| 196 | return EXTA; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 197 | #endif /* EXTA */ |
| 198 | #endif /* B19200 */ |
| 199 | |
| 200 | #ifdef B38400 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 201 | case 38400: |
| 202 | return B38400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 203 | #else /* B38400 */ |
| 204 | #ifdef EXTB |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 205 | case 38400: |
| 206 | return EXTB; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 207 | #endif /* EXTB */ |
| 208 | #endif /* B38400 */ |
| 209 | |
| 210 | #ifdef B7200 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 211 | case 7200: |
| 212 | return B7200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 213 | #endif /* B7200 */ |
| 214 | #ifdef B14400 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 215 | case 14400: |
| 216 | return B14400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 217 | #endif /* B14400 */ |
| 218 | #ifdef B28800 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 219 | case 28800: |
| 220 | return B28800; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 221 | #endif /* B28800 */ |
| 222 | #ifdef B57600 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 223 | case 57600: |
| 224 | return B57600; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 225 | #endif /* B57600 */ |
| 226 | #ifdef B76800 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 227 | case 76800: |
| 228 | return B76800; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 229 | #endif /* B76800 */ |
| 230 | #ifdef B115200 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 231 | case 115200: |
| 232 | return B115200; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 233 | #endif /* B115200 */ |
| 234 | #ifdef B230400 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 235 | case 230400: |
| 236 | return B230400; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 237 | #endif /* B230400 */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 238 | default: |
| 239 | return B9600; |
| 240 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 241 | } |
| 242 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 243 | /* |
| 244 | * Encodes terminal modes for the terminal referenced by fd |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 245 | * or tiop in a portable manner, and appends the modes to a packet |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 246 | * being constructed. |
| 247 | */ |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 248 | void |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 249 | tty_make_modes(int fd, struct termios *tiop) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 250 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 251 | struct termios tio; |
| 252 | int baud; |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 253 | Buffer buf; |
| 254 | int tty_op_ospeed, tty_op_ispeed; |
| 255 | void (*put_arg)(Buffer *, u_int); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 256 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 257 | buffer_init(&buf); |
| 258 | if (compat20) { |
| 259 | tty_op_ospeed = TTY_OP_OSPEED_PROTO2; |
| 260 | tty_op_ispeed = TTY_OP_ISPEED_PROTO2; |
| 261 | put_arg = buffer_put_int; |
| 262 | } else { |
| 263 | tty_op_ospeed = TTY_OP_OSPEED_PROTO1; |
| 264 | tty_op_ispeed = TTY_OP_ISPEED_PROTO1; |
| 265 | put_arg = (void (*)(Buffer *, u_int)) buffer_put_char; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 266 | } |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 267 | |
| 268 | if (tiop == NULL) { |
| 269 | if (tcgetattr(fd, &tio) == -1) { |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 270 | logit("tcgetattr: %.100s", strerror(errno)); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 271 | goto end; |
| 272 | } |
| 273 | } else |
| 274 | tio = *tiop; |
| 275 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 276 | /* Store input and output baud rates. */ |
| 277 | baud = speed_to_baud(cfgetospeed(&tio)); |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 278 | debug3("tty_make_modes: ospeed %d", baud); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 279 | buffer_put_char(&buf, tty_op_ospeed); |
| 280 | buffer_put_int(&buf, baud); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 281 | baud = speed_to_baud(cfgetispeed(&tio)); |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 282 | debug3("tty_make_modes: ispeed %d", baud); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 283 | buffer_put_char(&buf, tty_op_ispeed); |
| 284 | buffer_put_int(&buf, baud); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 285 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 286 | /* Store values of mode flags. */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 287 | #define TTYCHAR(NAME, OP) \ |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 288 | debug3("tty_make_modes: %d %d", OP, tio.c_cc[NAME]); \ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 289 | buffer_put_char(&buf, OP); \ |
| 290 | put_arg(&buf, tio.c_cc[NAME]); |
| 291 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 292 | #define TTYMODE(NAME, FIELD, OP) \ |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 293 | debug3("tty_make_modes: %d %d", OP, ((tio.FIELD & NAME) != 0)); \ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 294 | buffer_put_char(&buf, OP); \ |
| 295 | put_arg(&buf, ((tio.FIELD & NAME) != 0)); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 296 | |
| 297 | #include "ttymodes.h" |
| 298 | |
| 299 | #undef TTYCHAR |
| 300 | #undef TTYMODE |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 301 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 302 | end: |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 303 | /* Mark end of mode data. */ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 304 | buffer_put_char(&buf, TTY_OP_END); |
| 305 | if (compat20) |
| 306 | packet_put_string(buffer_ptr(&buf), buffer_len(&buf)); |
| 307 | else |
| 308 | packet_put_raw(buffer_ptr(&buf), buffer_len(&buf)); |
| 309 | buffer_free(&buf); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 310 | } |
| 311 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 312 | /* |
| 313 | * Decodes terminal modes for the terminal referenced by fd in a portable |
| 314 | * manner from a packet being read. |
| 315 | */ |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 316 | void |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 317 | tty_parse_modes(int fd, int *n_bytes_ptr) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 318 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 319 | struct termios tio; |
| 320 | int opcode, baud; |
| 321 | int n_bytes = 0; |
| 322 | int failure = 0; |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 323 | u_int (*get_arg)(void); |
| 324 | int arg, arg_size; |
| 325 | |
| 326 | if (compat20) { |
| 327 | *n_bytes_ptr = packet_get_int(); |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 328 | debug3("tty_parse_modes: SSH2 n_bytes %d", *n_bytes_ptr); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 329 | if (*n_bytes_ptr == 0) |
| 330 | return; |
| 331 | get_arg = packet_get_int; |
| 332 | arg_size = 4; |
| 333 | } else { |
| 334 | get_arg = packet_get_char; |
| 335 | arg_size = 1; |
| 336 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 337 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 338 | /* |
| 339 | * Get old attributes for the terminal. We will modify these |
| 340 | * flags. I am hoping that if there are any machine-specific |
| 341 | * modes, they will initially have reasonable values. |
| 342 | */ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 343 | if (tcgetattr(fd, &tio) == -1) { |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 344 | logit("tcgetattr: %.100s", strerror(errno)); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 345 | failure = -1; |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 346 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 347 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 348 | for (;;) { |
| 349 | n_bytes += 1; |
| 350 | opcode = packet_get_char(); |
| 351 | switch (opcode) { |
| 352 | case TTY_OP_END: |
| 353 | goto set; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 354 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 355 | /* XXX: future conflict possible */ |
| 356 | case TTY_OP_ISPEED_PROTO1: |
| 357 | case TTY_OP_ISPEED_PROTO2: |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 358 | n_bytes += 4; |
| 359 | baud = packet_get_int(); |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 360 | debug3("tty_parse_modes: ispeed %d", baud); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 361 | if (failure != -1 && cfsetispeed(&tio, baud_to_speed(baud)) == -1) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 362 | error("cfsetispeed failed for %d", baud); |
| 363 | break; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 364 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 365 | /* XXX: future conflict possible */ |
| 366 | case TTY_OP_OSPEED_PROTO1: |
| 367 | case TTY_OP_OSPEED_PROTO2: |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 368 | n_bytes += 4; |
| 369 | baud = packet_get_int(); |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 370 | debug3("tty_parse_modes: ospeed %d", baud); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 371 | if (failure != -1 && cfsetospeed(&tio, baud_to_speed(baud)) == -1) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 372 | error("cfsetospeed failed for %d", baud); |
| 373 | break; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 374 | |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 375 | #define TTYCHAR(NAME, OP) \ |
| 376 | case OP: \ |
| 377 | n_bytes += arg_size; \ |
| 378 | tio.c_cc[NAME] = get_arg(); \ |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 379 | debug3("tty_parse_modes: %d %d", OP, tio.c_cc[NAME]); \ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 380 | break; |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 381 | #define TTYMODE(NAME, FIELD, OP) \ |
| 382 | case OP: \ |
| 383 | n_bytes += arg_size; \ |
| 384 | if ((arg = get_arg())) \ |
| 385 | tio.FIELD |= NAME; \ |
| 386 | else \ |
| 387 | tio.FIELD &= ~NAME; \ |
Ben Lindstrom | 491bbb8 | 2001-06-25 05:24:16 +0000 | [diff] [blame] | 388 | debug3("tty_parse_modes: %d %d", OP, arg); \ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 389 | break; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 390 | |
| 391 | #include "ttymodes.h" |
| 392 | |
| 393 | #undef TTYCHAR |
| 394 | #undef TTYMODE |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 395 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 396 | default: |
| 397 | debug("Ignoring unsupported tty mode opcode %d (0x%x)", |
Damien Miller | 9f0f5c6 | 2001-12-21 14:45:46 +1100 | [diff] [blame] | 398 | opcode, opcode); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 399 | if (!compat20) { |
| 400 | /* |
| 401 | * SSH1: |
| 402 | * Opcodes 1 to 127 are defined to have |
| 403 | * a one-byte argument. |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 404 | * Opcodes 128 to 159 are defined to have |
| 405 | * an integer argument. |
| 406 | */ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 407 | if (opcode > 0 && opcode < 128) { |
| 408 | n_bytes += 1; |
| 409 | (void) packet_get_char(); |
| 410 | break; |
| 411 | } else if (opcode >= 128 && opcode < 160) { |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 412 | n_bytes += 4; |
| 413 | (void) packet_get_int(); |
| 414 | break; |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 415 | } else { |
| 416 | /* |
| 417 | * It is a truly undefined opcode (160 to 255). |
| 418 | * We have no idea about its arguments. So we |
| 419 | * must stop parsing. Note that some data may be |
| 420 | * left in the packet; hopefully there is nothing |
| 421 | * more coming after the mode data. |
| 422 | */ |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 423 | logit("parse_tty_modes: unknown opcode %d", opcode); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 424 | goto set; |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 425 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 426 | } else { |
| 427 | /* |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 428 | * SSH2: |
Ben Lindstrom | ac2f003 | 2001-04-15 14:25:12 +0000 | [diff] [blame] | 429 | * Opcodes 1 to 159 are defined to have |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 430 | * a uint32 argument. |
| 431 | * Opcodes 160 to 255 are undefined and |
| 432 | * cause parsing to stop. |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 433 | */ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 434 | if (opcode > 0 && opcode < 160) { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 435 | n_bytes += 4; |
| 436 | (void) packet_get_int(); |
| 437 | break; |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 438 | } else { |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 439 | logit("parse_tty_modes: unknown opcode %d", opcode); |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 440 | goto set; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 441 | } |
Ben Lindstrom | 6328ab3 | 2002-03-22 02:54:23 +0000 | [diff] [blame] | 442 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 443 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 444 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 445 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 446 | set: |
| 447 | if (*n_bytes_ptr != n_bytes) { |
| 448 | *n_bytes_ptr = n_bytes; |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 449 | logit("parse_tty_modes: n_bytes_ptr != n_bytes: %d %d", |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 450 | *n_bytes_ptr, n_bytes); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 451 | return; /* Don't process bytes passed */ |
| 452 | } |
| 453 | if (failure == -1) |
Ben Lindstrom | ac2f003 | 2001-04-15 14:25:12 +0000 | [diff] [blame] | 454 | return; /* Packet parsed ok but tcgetattr() failed */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 455 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 456 | /* Set the new modes for the terminal. */ |
Ben Lindstrom | ae8e2d3 | 2001-04-14 23:13:02 +0000 | [diff] [blame] | 457 | if (tcsetattr(fd, TCSANOW, &tio) == -1) |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 458 | logit("Setting tty modes failed: %.100s", strerror(errno)); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 459 | } |