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authorVijay Kumar Banerjee <vijay@rtems.org>2021-04-13 12:36:36 -0600
committerVijay Kumar Banerjee <vijay@rtems.org>2021-04-13 23:57:13 -0600
commit327666fbdf8f27830308ab0732b5983f87942e43 (patch)
tree6c91cc3447b6cb3cafe4b8bffd205d1aa591f9e7
parent6923bb47129e359fd63a459802e7fbfb35156e7f (diff)
downloadrtems-net-legacy-327666fbdf8f27830308ab0732b5983f87942e43.tar.bz2
Revert "Add telnetd"
This reverts commit 1370111877f13c867d3a2bfca4b8fde1679bcec0.
-rw-r--r--telnetd/README23
-rw-r--r--telnetd/check_passwd.c106
-rw-r--r--telnetd/des.c873
-rw-r--r--telnetd/des.h1
-rw-r--r--telnetd/genpw.c79
-rw-r--r--telnetd/pty.c401
-rw-r--r--telnetd/telnetd-init.c18
-rw-r--r--telnetd/telnetd.c459
8 files changed, 0 insertions, 1960 deletions
diff --git a/telnetd/README b/telnetd/README
deleted file mode 100644
index 3807aa5..0000000
--- a/telnetd/README
+++ /dev/null
@@ -1,23 +0,0 @@
-Author: fernando.ruiz@ctv.es (correo@fernando-ruiz.com)
-
-This directory contains a telnetd server
-primary features:
-
- + create a user shell pseudo-terminal task.
-
-This code has not been extensively tested. It is provided as a tool
-for RTEMS users to open more shell tcp/ip pseudo-terminal.
-Suggestions and comments are appreciated.
-
-Read libmisc/shell for more information.
-
-NOTES:
-
-1. OOB not yet implemented. Only a reduced negotiation is implemented.
-
-2. If you have tcp/ip initialied you can start telnetd daemon.
- You need register pseudo-terminals driver into device drivers table.
-
-Enjoy it.
-
-FUTURE:
diff --git a/telnetd/check_passwd.c b/telnetd/check_passwd.c
deleted file mode 100644
index b4ea4d0..0000000
--- a/telnetd/check_passwd.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/*
- * Authorship
- * ----------
- * This software was created by
- * Till Straumann <strauman@slac.stanford.edu>, 2003-2007
- * Stanford Linear Accelerator Center, Stanford University.
- *
- * Acknowledgement of sponsorship
- * ------------------------------
- * This software was produced by
- * the Stanford Linear Accelerator Center, Stanford University,
- * under Contract DE-AC03-76SFO0515 with the Department of Energy.
- *
- * Government disclaimer of liability
- * ----------------------------------
- * Neither the United States nor the United States Department of Energy,
- * nor any of their employees, makes any warranty, express or implied, or
- * assumes any legal liability or responsibility for the accuracy,
- * completeness, or usefulness of any data, apparatus, product, or process
- * disclosed, or represents that its use would not infringe privately owned
- * rights.
- *
- * Stanford disclaimer of liability
- * --------------------------------
- * Stanford University makes no representations or warranties, express or
- * implied, nor assumes any liability for the use of this software.
- *
- * Stanford disclaimer of copyright
- * --------------------------------
- * Stanford University, owner of the copyright, hereby disclaims its
- * copyright and all other rights in this software. Hence, anyone may
- * freely use it for any purpose without restriction.
- *
- * Maintenance of notices
- * ----------------------
- * In the interest of clarity regarding the origin and status of this
- * SLAC software, this and all the preceding Stanford University notices
- * are to remain affixed to any copy or derivative of this software made
- * or distributed by the recipient and are to be affixed to any copy of
- * software made or distributed by the recipient that contains a copy or
- * derivative of this software.
- *
- * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
- *
- * Copyright (c) 2009 embedded brains GmbH and others.
- *
- * embedded brains GmbH
- * Obere Lagerstr. 30
- * D-82178 Puchheim
- * Germany
- * <rtems@embedded-brains.de>
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <termios.h>
-#include <errno.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-
-#include <rtems/telnetd.h>
-
-#include "des.h"
-#include <rtems/passwd.h>
-
-/**
- * @brief Standard Telnet login check that uses DES to encrypt the passphrase.
- *
- * Takes a @a passphrase, encrypts it and compares it to the encrypted
- * passphrase in the @c TELNETD_PASSWD environment variable. No password is
- * required if @c TELNETD_PASSWD is unset. The argument @a user is ignored.
- */
-bool rtems_telnetd_login_check(
- const char *user,
- const char *passphrase
-)
-{
- char *pw = getenv( "TELNETD_PASSWD");
- char cryptbuf [21];
- char salt [3];
-
- if (pw == NULL || strlen( pw) == 0) {
- #ifdef TELNETD_DEFAULT_PASSWD
- pw = TELNETD_DEFAULT_PASSWD;
- #else
- return true;
- #endif
- }
-
- strncpy( salt, pw, 2);
- salt [2] = '\0';
-
- return strcmp(
- __des_crypt_r( passphrase, salt, cryptbuf, sizeof( cryptbuf)),
- pw
- ) == 0;
-}
diff --git a/telnetd/des.c b/telnetd/des.c
deleted file mode 100644
index 1d0295a..0000000
--- a/telnetd/des.c
+++ /dev/null
@@ -1,873 +0,0 @@
-/*
- * FreeSec: libcrypt for NetBSD
- *
- * Copyright (c) 1994 David Burren
- * All rights reserved.
- *
- * Ported to RTEMS and made reentrant by Till Straumann, 9/2003
- *
- * Adapted for FreeBSD-2.0 by Geoffrey M. Rehmet
- * this file should now *only* export crypt(), in order to make
- * binaries of libcrypt exportable from the USA
- *
- * Adapted for FreeBSD-4.0 by Mark R V Murray
- * this file should now *only* export crypt_des(), in order to make
- * a module that can be optionally included in libcrypt.
- *
- * 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. Neither the name of the author nor the names of other contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
- *
- * This is an original implementation of the DES and the crypt(3) interfaces
- * by David Burren <davidb@werj.com.au>.
- *
- * An excellent reference on the underlying algorithm (and related
- * algorithms) is:
- *
- * B. Schneier, Applied Cryptography: protocols, algorithms,
- * and source code in C, John Wiley & Sons, 1994.
- *
- * Note that in that book's description of DES the lookups for the initial,
- * pbox, and final permutations are inverted (this has been brought to the
- * attention of the author). A list of errata for this book has been
- * posted to the sci.crypt newsgroup by the author and is available for FTP.
- *
- * ARCHITECTURE ASSUMPTIONS:
- * It is assumed that the 8-byte arrays passed by reference can be
- * addressed as arrays of u_int32_t's (ie. the CPU is not picky about
- * alignment).
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define __FORCE_GLIBC
-#include <sys/cdefs.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#ifndef __rtems__
-#include <pwd.h>
-#include <crypt.h>
-#endif
-#include <string.h>
-#include <stdlib.h>
-
-#include "des.h"
-
-#define REENTRANT
-/* Re-entrantify me -- all this junk needs to be in
- * struct crypt_data to make this really reentrant... */
-
-/* TS; not really - only the stuff in Des_Context */
-static struct fixed1 {
-u_char inv_key_perm[64];
-u_char inv_comp_perm[56];
-u_char u_sbox[8][64];
-u_char un_pbox[32];
-} des1_f;
-static struct fixed2 {
-u_int32_t ip_maskl[8][256], ip_maskr[8][256];
-} des2_f;
-static struct fixed3 {
-u_int32_t fp_maskl[8][256], fp_maskr[8][256];
-} des3_f;
-static struct fixed4 {
-u_int32_t key_perm_maskl[8][128], key_perm_maskr[8][128];
-u_int32_t comp_maskl[8][128], comp_maskr[8][128];
-} des4_f;
-
-#define inv_key_perm des1_f.inv_key_perm
-#define inv_comp_perm des1_f.inv_comp_perm
-#define u_sbox des1_f.u_sbox
-#define un_pbox des1_f.un_pbox
-#define ip_maskl des2_f.ip_maskl
-#define ip_maskr des2_f.ip_maskr
-#define fp_maskl des3_f.fp_maskl
-#define fp_maskr des3_f.fp_maskr
-#define key_perm_maskl des4_f.key_perm_maskl
-#define key_perm_maskr des4_f.key_perm_maskr
-#define comp_maskl des4_f.comp_maskl
-#define comp_maskr des4_f.comp_maskr
-
-/* These need to be maintained per-process */
-struct Des_Context {
-u_int32_t en_keysl[16], en_keysr[16];
-u_int32_t de_keysl[16], de_keysr[16];
-u_int32_t saltbits;
-u_int32_t old_salt;
-u_int32_t old_rawkey0, old_rawkey1;
-};
-
-#ifndef REENTRANT
-static struct Des_Context single;
-#endif
-
-#define en_keysl des_ctx->en_keysl
-#define en_keysr des_ctx->en_keysr
-#define de_keysl des_ctx->de_keysl
-#define de_keysr des_ctx->de_keysr
-#define saltbits des_ctx->saltbits
-#define old_salt des_ctx->old_salt
-#define old_rawkey0 des_ctx->old_rawkey0
-#define old_rawkey1 des_ctx->old_rawkey1
-
-/* Static stuff that stays resident and doesn't change after
- * being initialized, and therefore doesn't need to be made
- * reentrant. */
-static u_char init_perm[64], final_perm[64];
-static u_char m_sbox[4][4096];
-static u_int32_t psbox[4][256];
-
-
-
-
-/* A pile of data */
-static const u_char ascii64[] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
-
-static const u_char IP[64] = {
- 58, 50, 42, 34, 26, 18, 10, 2, 60, 52, 44, 36, 28, 20, 12, 4,
- 62, 54, 46, 38, 30, 22, 14, 6, 64, 56, 48, 40, 32, 24, 16, 8,
- 57, 49, 41, 33, 25, 17, 9, 1, 59, 51, 43, 35, 27, 19, 11, 3,
- 61, 53, 45, 37, 29, 21, 13, 5, 63, 55, 47, 39, 31, 23, 15, 7
-};
-
-static const u_char key_perm[56] = {
- 57, 49, 41, 33, 25, 17, 9, 1, 58, 50, 42, 34, 26, 18,
- 10, 2, 59, 51, 43, 35, 27, 19, 11, 3, 60, 52, 44, 36,
- 63, 55, 47, 39, 31, 23, 15, 7, 62, 54, 46, 38, 30, 22,
- 14, 6, 61, 53, 45, 37, 29, 21, 13, 5, 28, 20, 12, 4
-};
-
-static const u_char key_shifts[16] = {
- 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1
-};
-
-static const u_char comp_perm[48] = {
- 14, 17, 11, 24, 1, 5, 3, 28, 15, 6, 21, 10,
- 23, 19, 12, 4, 26, 8, 16, 7, 27, 20, 13, 2,
- 41, 52, 31, 37, 47, 55, 30, 40, 51, 45, 33, 48,
- 44, 49, 39, 56, 34, 53, 46, 42, 50, 36, 29, 32
-};
-
-/*
- * No E box is used, as it's replaced by some ANDs, shifts, and ORs.
- */
-
-static const u_char sbox[8][64] = {
- {
- 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
- 0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
- 4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
- 15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13
- },
- {
- 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
- 3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
- 0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
- 13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9
- },
- {
- 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
- 13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
- 13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
- 1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12
- },
- {
- 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
- 13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
- 10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
- 3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14
- },
- {
- 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
- 14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
- 4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
- 11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3
- },
- {
- 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
- 10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
- 9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
- 4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13
- },
- {
- 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
- 13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
- 1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
- 6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12
- },
- {
- 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
- 1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
- 7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
- 2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11
- }
-};
-
-static const u_char pbox[32] = {
- 16, 7, 20, 21, 29, 12, 28, 17, 1, 15, 23, 26, 5, 18, 31, 10,
- 2, 8, 24, 14, 32, 27, 3, 9, 19, 13, 30, 6, 22, 11, 4, 25
-};
-
-static const u_int32_t bits32[32] =
-{
- 0x80000000, 0x40000000, 0x20000000, 0x10000000,
- 0x08000000, 0x04000000, 0x02000000, 0x01000000,
- 0x00800000, 0x00400000, 0x00200000, 0x00100000,
- 0x00080000, 0x00040000, 0x00020000, 0x00010000,
- 0x00008000, 0x00004000, 0x00002000, 0x00001000,
- 0x00000800, 0x00000400, 0x00000200, 0x00000100,
- 0x00000080, 0x00000040, 0x00000020, 0x00000010,
- 0x00000008, 0x00000004, 0x00000002, 0x00000001
-};
-
-static const u_char bits8[8] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 };
-static const u_int32_t *bits28, *bits24;
-
-
-static int
-ascii_to_bin(char ch)
-{
- if (ch > 'z')
- return(0);
- if (ch >= 'a')
- return(ch - 'a' + 38);
- if (ch > 'Z')
- return(0);
- if (ch >= 'A')
- return(ch - 'A' + 12);
- if (ch > '9')
- return(0);
- if (ch >= '.')
- return(ch - '.');
- return(0);
-}
-
-static struct Des_Context *
-des_ctx_init(void)
-{
-struct Des_Context *des_ctx;
-#ifdef REENTRANT
- des_ctx = malloc(sizeof(*des_ctx));
-#else
- des_ctx = &single;
-#endif
- old_rawkey0 = old_rawkey1 = 0L;
- saltbits = 0L;
- old_salt = 0L;
-
- return des_ctx;
-}
-
-static void
-des_init(void)
-{
- int i, j, b, k, inbit, obit;
- u_int32_t *p, *il, *ir, *fl, *fr;
- static int des_initialised = 0;
-
- if (des_initialised==1)
- return;
-
-#ifndef REENTRANT
- des_ctx_init();
-#endif
-
- bits24 = (bits28 = bits32 + 4) + 4;
-
- /*
- * Invert the S-boxes, reordering the input bits.
- */
- for (i = 0; i < 8; i++)
- for (j = 0; j < 64; j++) {
- b = (j & 0x20) | ((j & 1) << 4) | ((j >> 1) & 0xf);
- u_sbox[i][j] = sbox[i][b];
- }
-
- /*
- * Convert the inverted S-boxes into 4 arrays of 8 bits.
- * Each will handle 12 bits of the S-box input.
- */
- for (b = 0; b < 4; b++)
- for (i = 0; i < 64; i++)
- for (j = 0; j < 64; j++)
- m_sbox[b][(i << 6) | j] =
- (u_char)((u_sbox[(b << 1)][i] << 4) |
- u_sbox[(b << 1) + 1][j]);
-
- /*
- * Set up the initial & final permutations into a useful form, and
- * initialise the inverted key permutation.
- */
- for (i = 0; i < 64; i++) {
- init_perm[final_perm[i] = IP[i] - 1] = (u_char)i;
- inv_key_perm[i] = 255;
- }
-
- /*
- * Invert the key permutation and initialise the inverted key
- * compression permutation.
- */
- for (i = 0; i < 56; i++) {
- inv_key_perm[key_perm[i] - 1] = (u_char)i;
- inv_comp_perm[i] = 255;
- }
-
- /*
- * Invert the key compression permutation.
- */
- for (i = 0; i < 48; i++) {
- inv_comp_perm[comp_perm[i] - 1] = (u_char)i;
- }
-
- /*
- * Set up the OR-mask arrays for the initial and final permutations,
- * and for the key initial and compression permutations.
- */
- for (k = 0; k < 8; k++) {
- for (i = 0; i < 256; i++) {
- *(il = &ip_maskl[k][i]) = 0L;
- *(ir = &ip_maskr[k][i]) = 0L;
- *(fl = &fp_maskl[k][i]) = 0L;
- *(fr = &fp_maskr[k][i]) = 0L;
- for (j = 0; j < 8; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j]) {
- if ((obit = init_perm[inbit]) < 32)
- *il |= bits32[obit];
- else
- *ir |= bits32[obit-32];
- if ((obit = final_perm[inbit]) < 32)
- *fl |= bits32[obit];
- else
- *fr |= bits32[obit - 32];
- }
- }
- }
- for (i = 0; i < 128; i++) {
- *(il = &key_perm_maskl[k][i]) = 0L;
- *(ir = &key_perm_maskr[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 8 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit = inv_key_perm[inbit]) == 255)
- continue;
- if (obit < 28)
- *il |= bits28[obit];
- else
- *ir |= bits28[obit - 28];
- }
- }
- *(il = &comp_maskl[k][i]) = 0L;
- *(ir = &comp_maskr[k][i]) = 0L;
- for (j = 0; j < 7; j++) {
- inbit = 7 * k + j;
- if (i & bits8[j + 1]) {
- if ((obit=inv_comp_perm[inbit]) == 255)
- continue;
- if (obit < 24)
- *il |= bits24[obit];
- else
- *ir |= bits24[obit - 24];
- }
- }
- }
- }
-
- /*
- * Invert the P-box permutation, and convert into OR-masks for
- * handling the output of the S-box arrays setup above.
- */
- for (i = 0; i < 32; i++)
- un_pbox[pbox[i] - 1] = (u_char)i;
-
- for (b = 0; b < 4; b++)
- for (i = 0; i < 256; i++) {
- *(p = &psbox[b][i]) = 0L;
- for (j = 0; j < 8; j++) {
- if (i & bits8[j])
- *p |= bits32[un_pbox[8 * b + j]];
- }
- }
-
- des_initialised = 1;
-}
-
-
-static void
-setup_salt(long salt, struct Des_Context *des_ctx)
-{
- u_int32_t obit, saltbit;
- int i;
-
- if (salt == old_salt)
- return;
- old_salt = salt;
-
- saltbits = 0L;
- saltbit = 1;
- obit = 0x800000;
- for (i = 0; i < 24; i++) {
- if (salt & saltbit)
- saltbits |= obit;
- saltbit <<= 1;
- obit >>= 1;
- }
-}
-
-
-static int
-des_setkey(const char *key, struct Des_Context *des_ctx)
-{
- u_int32_t k0, k1, rawkey0, rawkey1;
- int shifts, round;
-
- des_init();
-
- rawkey0 = ntohl(*(const u_int32_t *) key);
- rawkey1 = ntohl(*(const u_int32_t *) (key + 4));
-
- if ((rawkey0 | rawkey1)
- && rawkey0 == old_rawkey0
- && rawkey1 == old_rawkey1) {
- /*
- * Already setup for this key.
- * This optimisation fails on a zero key (which is weak and
- * has bad parity anyway) in order to simplify the starting
- * conditions.
- */
- return(0);
- }
- old_rawkey0 = rawkey0;
- old_rawkey1 = rawkey1;
-
- /*
- * Do key permutation and split into two 28-bit subkeys.
- */
- k0 = key_perm_maskl[0][rawkey0 >> 25]
- | key_perm_maskl[1][(rawkey0 >> 17) & 0x7f]
- | key_perm_maskl[2][(rawkey0 >> 9) & 0x7f]
- | key_perm_maskl[3][(rawkey0 >> 1) & 0x7f]
- | key_perm_maskl[4][rawkey1 >> 25]
- | key_perm_maskl[5][(rawkey1 >> 17) & 0x7f]
- | key_perm_maskl[6][(rawkey1 >> 9) & 0x7f]
- | key_perm_maskl[7][(rawkey1 >> 1) & 0x7f];
- k1 = key_perm_maskr[0][rawkey0 >> 25]
- | key_perm_maskr[1][(rawkey0 >> 17) & 0x7f]
- | key_perm_maskr[2][(rawkey0 >> 9) & 0x7f]
- | key_perm_maskr[3][(rawkey0 >> 1) & 0x7f]
- | key_perm_maskr[4][rawkey1 >> 25]
- | key_perm_maskr[5][(rawkey1 >> 17) & 0x7f]
- | key_perm_maskr[6][(rawkey1 >> 9) & 0x7f]
- | key_perm_maskr[7][(rawkey1 >> 1) & 0x7f];
- /*
- * Rotate subkeys and do compression permutation.
- */
- shifts = 0;
- for (round = 0; round < 16; round++) {
- u_int32_t t0, t1;
-
- shifts += key_shifts[round];
-
- t0 = (k0 << shifts) | (k0 >> (28 - shifts));
- t1 = (k1 << shifts) | (k1 >> (28 - shifts));
-
- de_keysl[15 - round] =
- en_keysl[round] = comp_maskl[0][(t0 >> 21) & 0x7f]
- | comp_maskl[1][(t0 >> 14) & 0x7f]
- | comp_maskl[2][(t0 >> 7) & 0x7f]
- | comp_maskl[3][t0 & 0x7f]
- | comp_maskl[4][(t1 >> 21) & 0x7f]
- | comp_maskl[5][(t1 >> 14) & 0x7f]
- | comp_maskl[6][(t1 >> 7) & 0x7f]
- | comp_maskl[7][t1 & 0x7f];
-
- de_keysr[15 - round] =
- en_keysr[round] = comp_maskr[0][(t0 >> 21) & 0x7f]
- | comp_maskr[1][(t0 >> 14) & 0x7f]
- | comp_maskr[2][(t0 >> 7) & 0x7f]
- | comp_maskr[3][t0 & 0x7f]
- | comp_maskr[4][(t1 >> 21) & 0x7f]
- | comp_maskr[5][(t1 >> 14) & 0x7f]
- | comp_maskr[6][(t1 >> 7) & 0x7f]
- | comp_maskr[7][t1 & 0x7f];
- }
- return(0);
-}
-
-
-static int
-do_des( u_int32_t l_in, u_int32_t r_in, u_int32_t *l_out, u_int32_t *r_out, int count, struct Des_Context *des_ctx)
-{
- /*
- * l_in, r_in, l_out, and r_out are in pseudo-"big-endian" format.
- */
- u_int32_t l, r, *kl, *kr, *kl1, *kr1;
- u_int32_t f, r48l, r48r;
- int round;
-
- if (count == 0) {
- return(1);
- } else if (count > 0) {
- /*
- * Encrypting
- */
- kl1 = en_keysl;
- kr1 = en_keysr;
- } else {
- /*
- * Decrypting
- */
- count = -count;
- kl1 = de_keysl;
- kr1 = de_keysr;
- }
-
- /*
- * Do initial permutation (IP).
- */
- l = ip_maskl[0][l_in >> 24]
- | ip_maskl[1][(l_in >> 16) & 0xff]
- | ip_maskl[2][(l_in >> 8) & 0xff]
- | ip_maskl[3][l_in & 0xff]
- | ip_maskl[4][r_in >> 24]
- | ip_maskl[5][(r_in >> 16) & 0xff]
- | ip_maskl[6][(r_in >> 8) & 0xff]
- | ip_maskl[7][r_in & 0xff];
- r = ip_maskr[0][l_in >> 24]
- | ip_maskr[1][(l_in >> 16) & 0xff]
- | ip_maskr[2][(l_in >> 8) & 0xff]
- | ip_maskr[3][l_in & 0xff]
- | ip_maskr[4][r_in >> 24]
- | ip_maskr[5][(r_in >> 16) & 0xff]
- | ip_maskr[6][(r_in >> 8) & 0xff]
- | ip_maskr[7][r_in & 0xff];
-
- while (count--) {
- /*
- * Do each round.
- */
- kl = kl1;
- kr = kr1;
- round = 16;
- while (round--) {
- /*
- * Expand R to 48 bits (simulate the E-box).
- */
- r48l = ((r & 0x00000001) << 23)
- | ((r & 0xf8000000) >> 9)
- | ((r & 0x1f800000) >> 11)
- | ((r & 0x01f80000) >> 13)
- | ((r & 0x001f8000) >> 15);
-
- r48r = ((r & 0x0001f800) << 7)
- | ((r & 0x00001f80) << 5)
- | ((r & 0x000001f8) << 3)
- | ((r & 0x0000001f) << 1)
- | ((r & 0x80000000) >> 31);
- /*
- * Do salting for crypt() and friends, and
- * XOR with the permuted key.
- */
- f = (r48l ^ r48r) & saltbits;
- r48l ^= f ^ *kl++;
- r48r ^= f ^ *kr++;
- /*
- * Do sbox lookups (which shrink it back to 32 bits)
- * and do the pbox permutation at the same time.
- */
- f = psbox[0][m_sbox[0][r48l >> 12]]
- | psbox[1][m_sbox[1][r48l & 0xfff]]
- | psbox[2][m_sbox[2][r48r >> 12]]
- | psbox[3][m_sbox[3][r48r & 0xfff]];
- /*
- * Now that we've permuted things, complete f().
- */
- f ^= l;
- l = r;
- r = f;
- }
- r = l;
- l = f;
- }
- /*
- * Do final permutation (inverse of IP).
- */
- *l_out = fp_maskl[0][l >> 24]
- | fp_maskl[1][(l >> 16) & 0xff]
- | fp_maskl[2][(l >> 8) & 0xff]
- | fp_maskl[3][l & 0xff]
- | fp_maskl[4][r >> 24]
- | fp_maskl[5][(r >> 16) & 0xff]
- | fp_maskl[6][(r >> 8) & 0xff]
- | fp_maskl[7][r & 0xff];
- *r_out = fp_maskr[0][l >> 24]
- | fp_maskr[1][(l >> 16) & 0xff]
- | fp_maskr[2][(l >> 8) & 0xff]
- | fp_maskr[3][l & 0xff]
- | fp_maskr[4][r >> 24]
- | fp_maskr[5][(r >> 16) & 0xff]
- | fp_maskr[6][(r >> 8) & 0xff]
- | fp_maskr[7][r & 0xff];
- return(0);
-}
-
-
-#if 0
-static int
-des_cipher(const char *in, char *out, u_int32_t salt, int count)
-{
- u_int32_t l_out, r_out, rawl, rawr;
- int retval;
- union {
- u_int32_t *ui32;
- const char *c;
- } trans;
-
- des_init();
-
- setup_salt(salt);
-
- trans.c = in;
- rawl = ntohl(*trans.ui32++);
- rawr = ntohl(*trans.ui32);
-
- retval = do_des(rawl, rawr, &l_out, &r_out, count);
-
- trans.c = out;
- *trans.ui32++ = htonl(l_out);
- *trans.ui32 = htonl(r_out);
- return(retval);
-}
-#endif
-
-
-#ifndef REENTRANT
-void
-setkey(const char *key)
-{
- int i, j;
- u_int32_t packed_keys[2];
- u_char *p;
-
- p = (u_char *) packed_keys;
-
- for (i = 0; i < 8; i++) {
- p[i] = 0;
- for (j = 0; j < 8; j++)
- if (*key++ & 1)
- p[i] |= bits8[j];
- }
- des_setkey(p, &single);
-}
-#endif
-
-
-#ifndef REENTRANT
-void
-encrypt(char *block, int flag)
-{
- u_int32_t io[2];
- u_char *p;
- int i, j;
-
- des_init();
-
- setup_salt(0L, &single);
- p = block;
- for (i = 0; i < 2; i++) {
- io[i] = 0L;
- for (j = 0; j < 32; j++)
- if (*p++ & 1)
- io[i] |= bits32[j];
- }
- do_des(io[0], io[1], io, io + 1, flag ? -1 : 1, &single);
- for (i = 0; i < 2; i++)
- for (j = 0; j < 32; j++)
- block[(i << 5) | j] = (io[i] & bits32[j]) ? 1 : 0;
-}
-
-#endif
-
-char *
-__des_crypt_r(const char *key, const char *setting, char *output, int sz)
-{
- char *rval = 0;
- struct Des_Context *des_ctx;
- u_int32_t count, salt, l, r0, r1, keybuf[2];
- u_char *p, *q;
-
- if (sz < 21)
- return NULL;
-
- des_init();
- des_ctx = des_ctx_init();
-
- /*
- * Copy the key, shifting each character up by one bit
- * and padding with zeros.
- */
- q = (u_char *)keybuf;
- while (q - (u_char *)keybuf - 8) {
- *q++ = *key << 1;
- if (*(q - 1))
- key++;
- }
- if (des_setkey((char *)keybuf, des_ctx))
- goto bailout;
-
-#if 0
- if (*setting == _PASSWORD_EFMT1) {
- int i;
- /*
- * "new"-style:
- * setting - underscore, 4 bytes of count, 4 bytes of salt
- * key - unlimited characters
- */
- for (i = 1, count = 0L; i < 5; i++)
- count |= ascii_to_bin(setting[i]) << ((i - 1) * 6);
-
- for (i = 5, salt = 0L; i < 9; i++)
- salt |= ascii_to_bin(setting[i]) << ((i - 5) * 6);
-
- while (*key) {
- /*
- * Encrypt the key with itself.
- */
- if (des_cipher((char *)keybuf, (char *)keybuf, 0L, 1))
- goto bailout;
- /*
- * And XOR with the next 8 characters of the key.
- */
- q = (u_char *)keybuf;
- while (q - (u_char *)keybuf - 8 && *key)
- *q++ ^= *key++ << 1;
-
- if (des_setkey((char *)keybuf))
- goto bailout;
- }
- strncpy(output, setting, 9);
-
- /*
- * Double check that we weren't given a short setting.
- * If we were, the above code will probably have created
- * wierd values for count and salt, but we don't really care.
- * Just make sure the output string doesn't have an extra
- * NUL in it.
- */
- output[9] = '\0';
- p = (u_char *)output + strlen(output);
- } else
-#endif
- {
- /*
- * "old"-style:
- * setting - 2 bytes of salt
- * key - up to 8 characters
- */
- count = 25;
-
- salt = (ascii_to_bin(setting[1]) << 6)
- | ascii_to_bin(setting[0]);
-
- output[0] = setting[0];
- /*
- * If the encrypted password that the salt was extracted from
- * is only 1 character long, the salt will be corrupted. We
- * need to ensure that the output string doesn't have an extra
- * NUL in it!
- */
- output[1] = setting[1] ? setting[1] : output[0];
-
- p = (u_char *)output + 2;
- }
- setup_salt(salt, des_ctx);
- /*
- * Do it.
- */
- if (do_des(0L, 0L, &r0, &r1, (int)count, des_ctx))
- goto bailout;
- /*
- * Now encode the result...
- */
- l = (r0 >> 8);
- *p++ = ascii64[(l >> 18) & 0x3f];
- *p++ = ascii64[(l >> 12) & 0x3f];
- *p++ = ascii64[(l >> 6) & 0x3f];
- *p++ = ascii64[l & 0x3f];
-
- l = (r0 << 16) | ((r1 >> 16) & 0xffff);
- *p++ = ascii64[(l >> 18) & 0x3f];
- *p++ = ascii64[(l >> 12) & 0x3f];
- *p++ = ascii64[(l >> 6) & 0x3f];
- *p++ = ascii64[l & 0x3f];
-
- l = r1 << 2;
- *p++ = ascii64[(l >> 12) & 0x3f];
- *p++ = ascii64[(l >> 6) & 0x3f];
- *p++ = ascii64[l & 0x3f];
- *p = 0;
-
- rval = output;
-bailout:
- free(des_ctx);
- return rval;
-}
-
-#ifdef DEBUG
-
-void
-des_snap(void **pf, void **pd)
-{
- uint8* pfc;
- *pf = malloc(sizeof(struct fixed1) + sizeof(struct fixed2) + sizeof(struct fixed3) + sizeof(struct fixed4));
- pfc = *pf;
- memcpy(pfc, &des1_f, sizeof(des1_f));
- pfc += sizeof(des1_f);
- memcpy(pfc, &des2_f, sizeof(des2_f));
- pfc += sizeof(des2_f);
- memcpy(pfc, &des3_f, sizeof(des3_f));
- pfc += sizeof(des3_f);
- memcpy(pfc, &des4_f, sizeof(des4_f));
-// *pd = malloc(sizeof(struct Des_Context));
-// memcpy(*pd, &des_ctx, sizeof(des_ctx));
-}
-
-void
-des_check(void *pf, void *pd)
-{
- uint8* pfc1, pfc2, pfc3, pfc4;
- pfc1 = pf;
- pfc2 = pfc1 + sizeof(des1_f);
- pfc3 = pfc2 + sizeof(des2_f);
- pfc4 = pfc3 + sizeof(des3_f);
- printf("Fixed: do%s differ"/*", Context: do%s differ"*/"\n",
- (memcmp(pfc1, &des1_f, sizeof(des1_f)) ||
- memcmp(pfc2, &des2_f, sizeof(des2_f)) ||
- memcmp(pfc3, &des4_f, sizeof(des3_f)) ||
- memcmp(pfc4, &des4_f, sizeof(des4_f))) ? "" : "nt");
-}
-
-#endif
diff --git a/telnetd/des.h b/telnetd/des.h
deleted file mode 100644
index 382dab7..0000000
--- a/telnetd/des.h
+++ /dev/null
@@ -1 +0,0 @@
-char *__des_crypt_r(const char *, const char *, char *, int);
diff --git a/telnetd/genpw.c b/telnetd/genpw.c
deleted file mode 100644
index 1cb30bc..0000000
--- a/telnetd/genpw.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Authorship
- * ----------
- * This software was created by
- * Till Straumann <strauman@slac.stanford.edu>, 2003-2007
- * Stanford Linear Accelerator Center, Stanford University.
- *
- * Acknowledgement of sponsorship
- * ------------------------------
- * This software was produced by
- * the Stanford Linear Accelerator Center, Stanford University,
- * under Contract DE-AC03-76SFO0515 with the Department of Energy.
- *
- * Government disclaimer of liability
- * ----------------------------------
- * Neither the United States nor the United States Department of Energy,
- * nor any of their employees, makes any warranty, express or implied, or
- * assumes any legal liability or responsibility for the accuracy,
- * completeness, or usefulness of any data, apparatus, product, or process
- * disclosed, or represents that its use would not infringe privately owned
- * rights.
- *
- * Stanford disclaimer of liability
- * --------------------------------
- * Stanford University makes no representations or warranties, express or
- * implied, nor assumes any liability for the use of this software.
- *
- * Stanford disclaimer of copyright
- * --------------------------------
- * Stanford University, owner of the copyright, hereby disclaims its
- * copyright and all other rights in this software. Hence, anyone may
- * freely use it for any purpose without restriction.
- *
- * Maintenance of notices
- * ----------------------
- * In the interest of clarity regarding the origin and status of this
- * SLAC software, this and all the preceding Stanford University notices
- * are to remain affixed to any copy or derivative of this software made
- * or distributed by the recipient and are to be affixed to any copy of
- * software made or distributed by the recipient that contains a copy or
- * derivative of this software.
- *
- * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <crypt.h>
-#include <stdio.h>
-#include <unistd.h>
-
-static void
-usage(char *nm)
-{
- fprintf(stderr,"Usage: %s [-h] [-s salt] cleartext_password\n", nm);
-}
-
-int
-main(int argc, char **argv)
-{
-int ch;
-char *salt="td";
- while ( (ch=getopt(argc, argv, "hs:")) >=0 ) {
- switch (ch) {
- default: fprintf(stderr,"Unknown Option '%c'\n",ch);
- case 'h': usage(argv[0]);
- return 0;
- case 's': salt=optarg;
- break;
- }
- }
- if ( optind >= argc ) {
- usage(argv[0]);
- return 1;
- }
- printf("#define TELNETD_DEFAULT_PASSWD \"%s\"\n",crypt(argv[optind],salt));
-}
diff --git a/telnetd/pty.c b/telnetd/pty.c
deleted file mode 100644
index a593bbd..0000000
--- a/telnetd/pty.c
+++ /dev/null
@@ -1,401 +0,0 @@
-/*
- * /dev/ptyXX (Support for pseudo-terminals)
- *
- * Original Author: Fernando RUIZ CASAS (fernando.ruiz@ctv.es)
- * May 2001
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Till Straumann <strauman@slac.stanford.edu>
- *
- * - converted into a loadable module
- * - NAWS support / ioctls for querying/setting the window
- * size added.
- * - don't delete the running task when the connection
- * is closed. Rather let 'read()' return a 0 count so
- * they may cleanup. Some magic hack works around termios
- * limitation.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#define DEBUG_WH (1<<0)
-#define DEBUG_DETAIL (1<<1)
-
-/* #define DEBUG DEBUG_WH */
-
-/*-----------------------------------------*/
-#include <sys/ttycom.h>
-#include <rtems/pty.h>
-#include <rtems/seterr.h>
-#include <errno.h>
-#include <sys/socket.h>
-/*-----------------------------------------*/
-#include <inttypes.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <unistd.h>
-/*-----------------------------------------*/
-#define IAC_ESC 255
-#define IAC_DONT 254
-#define IAC_DO 253
-#define IAC_WONT 252
-#define IAC_WILL 251
-#define IAC_SB 250
-#define IAC_GA 249
-#define IAC_EL 248
-#define IAC_EC 247
-#define IAC_AYT 246
-#define IAC_AO 245
-#define IAC_IP 244
-#define IAC_BRK 243
-#define IAC_DMARK 242
-#define IAC_NOP 241
-#define IAC_SE 240
-#define IAC_EOR 239
-
-#define SB_MAX RTEMS_PTY_SB_MAX
-
-static bool ptyPollInitialize(rtems_termios_tty *,
- rtems_termios_device_context *, struct termios *,
- rtems_libio_open_close_args_t *);
-static void ptyShutdown(rtems_termios_tty *,
- rtems_termios_device_context *, rtems_libio_open_close_args_t *);
-static void ptyPollWrite(rtems_termios_device_context *, const char *, size_t);
-static int ptyPollRead(rtems_termios_device_context *);
-static bool ptySetAttributes(rtems_termios_device_context *,
- const struct termios *);
-static int my_pty_control(rtems_termios_device_context *,
- ioctl_command_t, void *);
-
-static const rtems_termios_device_handler pty_handler = {
- .first_open = ptyPollInitialize,
- .last_close = ptyShutdown,
- .poll_read = ptyPollRead,
- .write = ptyPollWrite,
- .set_attributes = ptySetAttributes,
- .ioctl = my_pty_control
-};
-
-static
-int send_iac(rtems_pty_context *pty, unsigned char mode, unsigned char option)
-{
- unsigned char buf[3];
-
- buf[0]=IAC_ESC;
- buf[1]=mode;
- buf[2]=option;
- return write(pty->socket, buf, sizeof(buf));
-}
-
-const char *rtems_pty_initialize(rtems_pty_context *pty, uintptr_t unique)
-{
- rtems_status_code sc;
-
- memset(pty, 0, sizeof(*pty));
- (void)snprintf(pty->name, sizeof(pty->name), "/dev/pty%" PRIuPTR, unique);
- rtems_termios_device_context_initialize(&pty->base, "pty");
- pty->socket = -1;
- sc = rtems_termios_device_install(pty->name, &pty_handler, NULL, &pty->base);
- if (sc != RTEMS_SUCCESSFUL) {
- return NULL;
- }
-
- return pty->name;
-}
-
-void rtems_pty_close_socket(rtems_pty_context *pty)
-{
- if (pty->socket >= 0) {
- (void)close(pty->socket);
- pty->socket = -1;
- }
-}
-
-void rtems_pty_set_socket(rtems_pty_context *pty, int socket)
-{
- struct timeval t;
-
- rtems_pty_close_socket(pty);
- pty->socket = socket;
-
- /* set a long polling interval to save CPU time */
- t.tv_sec=2;
- t.tv_usec=00000;
- (void)setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, &t, sizeof(t));
-
- /* inform the client that we will echo */
- send_iac(pty, IAC_WILL, 1);
-}
-
-/*-----------------------------------------------------------*/
-/*
- * The NVT terminal is negociated in PollRead and PollWrite
- * with every BYTE sendded or received.
- * A litle status machine in the pty_read_byte(int minor)
- *
- */
-static const char IAC_AYT_RSP[]="\r\nAYT? Yes, RTEMS-SHELL is here\r\n";
-static const char IAC_BRK_RSP[]="<*Break*>";
-static const char IAC_IP_RSP []="<*Interrupt*>";
-
-static int
-handleSB(rtems_pty_context *pty)
-{
- switch (pty->sb_buf[0]) {
- case 31: /* NAWS */
- pty->width = (pty->sb_buf[1]<<8) + pty->sb_buf[2];
- pty->height = (pty->sb_buf[3]<<8) + pty->sb_buf[4];
-#if DEBUG & DEBUG_WH
- fprintf(stderr,
- "Setting width/height to %ix%i\n",
- pty->width,
- pty->height);
-#endif
- break;
- default:
- break;
- }
- return 0;
-}
-
-static int ptyPollRead(rtems_termios_device_context *base)
-{ /* Characters written to the client side*/
- rtems_pty_context *pty = (rtems_pty_context *)base;
- unsigned char value;
- unsigned int omod;
- int count;
- int result;
-
- count=read(pty->socket,&value,sizeof(value));
- if (count<0)
- return -1;
-
- if (count<1) {
- /* Unfortunately, there is no way of passing an EOF
- * condition through the termios driver. Hence, we
- * resort to an ugly hack. Setting cindex>ccount
- * causes the termios driver to return a read count
- * of '0' which is what we want here. We leave
- * 'errno' untouched.
- */
- pty->ttyp->cindex=pty->ttyp->ccount+1;
- return pty->ttyp->termios.c_cc[VEOF];
- };
-
- omod=pty->iac_mode;
- pty->iac_mode=0;
- switch(omod & 0xff) {
- case IAC_ESC:
- switch(value) {
- case IAC_ESC :
- /* in case this is an ESC ESC sequence in SB mode */
- pty->iac_mode = omod>>8;
- return IAC_ESC;
- case IAC_DONT:
- case IAC_DO :
- case IAC_WONT:
- case IAC_WILL:
- pty->iac_mode=value;
- return -1;
- case IAC_SB :
-#if DEBUG & DEBUG_DETAIL
- printk("SB\n");
-#endif
- pty->iac_mode=value;
- pty->sb_ind=0;
- return -100;
- case IAC_GA :
- return -1;
- case IAC_EL :
- return 0x03; /* Ctrl-C*/
- case IAC_EC :
- return '\b';
- case IAC_AYT :
- write(pty->socket,IAC_AYT_RSP,strlen(IAC_AYT_RSP));
- return -1;
- case IAC_AO :
- return -1;
- case IAC_IP :
- write(pty->socket,IAC_IP_RSP,strlen(IAC_IP_RSP));
- return -1;
- case IAC_BRK :
- write(pty->socket,IAC_BRK_RSP,strlen(IAC_BRK_RSP));
- return -1;
- case IAC_DMARK:
- return -2;
- case IAC_NOP :
- return -1;
- case IAC_SE :
-#if DEBUG & DEBUG_DETAIL
- {
- int i;
- printk("SE");
- for (i=0; i<pty->sb_ind; i++)
- printk(" %02x",pty->sb_buf[i]);
- printk("\n");
- }
-#endif
- handleSB(pty);
- return -101;
- case IAC_EOR :
- return -102;
- default :
- return -1;
- };
- break;
-
- case IAC_SB:
- pty->iac_mode=omod;
- if (IAC_ESC==value) {
- pty->iac_mode=(omod<<8)|value;
- } else {
- if (pty->sb_ind < SB_MAX)
- pty->sb_buf[pty->sb_ind++]=value;
- }
- return -1;
-
- case IAC_WILL:
- if (value==34){
- send_iac(pty,IAC_DONT, 34); /*LINEMODE*/
- send_iac(pty,IAC_DO , 1); /*ECHO */
- } else if (value==31) {
- send_iac(pty,IAC_DO , 31); /*NAWS */
-#if DEBUG & DEBUG_DETAIL
- printk("replied DO NAWS\n");
-#endif
- } else {
- send_iac(pty,IAC_DONT,value);
- }
- return -1;
- case IAC_DONT:
- return -1;
- case IAC_DO :
- if (value==3) {
- send_iac(pty,IAC_WILL, 3); /* GO AHEAD*/
- } else if (value==1) {
- send_iac(pty,IAC_WILL, 1); /* ECHO */
- } else {
- send_iac(pty,IAC_WONT,value);
- };
- return -1;
- case IAC_WONT:
- if (value==1) {
- send_iac(pty,IAC_WILL, 1);
- } else { /* ECHO */
- send_iac(pty,IAC_WONT,value);
- }
- return -1;
- default:
- if (value==IAC_ESC) {
- pty->iac_mode=value;
- return -1;
- } else {
- result=value;
- if ( 0
- /* map CRLF to CR for symmetry */
- || ((value=='\n') && pty->last_cr)
- /* map telnet CRNUL to CR down here */
- || ((value==0) && pty->last_cr)
- ) result=-1;
- pty->last_cr=(value=='\r');
- return result;
- };
- };
- /* should never get here but keep compiler happy */
- return -1;
-}
-
-/*-----------------------------------------------------------*/
-/* Set the 'Hardware' */
-/*-----------------------------------------------------------*/
-static bool
-ptySetAttributes(rtems_termios_device_context *base, const struct termios *t)
-{
- rtems_pty_context *pty = (rtems_pty_context *)base;
- pty->c_cflag = t->c_cflag;
- return true;
-}
-/*-----------------------------------------------------------*/
-static bool
-ptyPollInitialize(rtems_termios_tty *ttyp,
- rtems_termios_device_context *base, struct termios *t,
- rtems_libio_open_close_args_t *args)
-{
- rtems_pty_context *pty = (rtems_pty_context *)base;
- pty->ttyp = ttyp;
- pty->iac_mode = 0;
- pty->sb_ind = 0;
- pty->width = 0;
- pty->height = 0;
- return ptySetAttributes(&pty->base, t);
-}
-/*-----------------------------------------------------------*/
-static void
-ptyShutdown(rtems_termios_tty *ttyp,
- rtems_termios_device_context *base, rtems_libio_open_close_args_t *arg)
-{
- rtems_pty_context *pty = (rtems_pty_context *)base;
- close(pty->socket);
-}
-/*-----------------------------------------------------------*/
-/* Write Characters into pty device */
-/*-----------------------------------------------------------*/
-static void
-ptyPollWrite(rtems_termios_device_context *base, const char *buf, size_t len)
-{
- rtems_pty_context *pty = (rtems_pty_context *)base;
-
- while (len > 0) {
- ssize_t n = write(pty->socket, buf, len);
- if (n <= 0) {
- break;
- }
-
- buf += (size_t)n;
- len -= (size_t)n;
- }
-}
-
-static int
-my_pty_control(rtems_termios_device_context *base,
- ioctl_command_t request, void *buffer)
-{
- rtems_pty_context *p = (rtems_pty_context *)base;
- struct winsize *wp = buffer;
-
- switch (request) {
- case TIOCGWINSZ:
- wp->ws_row = p->height;
- wp->ws_col = p->width;
-#if DEBUG & DEBUG_WH
- fprintf(stderr,
- "ioctl(TIOCGWINSZ), returning %ix%i\n",
- wp->ws_col,
- wp->ws_row);
-#endif
- break;
- case TIOCSWINSZ:
-#if DEBUG & DEBUG_WH
- fprintf(stderr,
- "ioctl(TIOCGWINSZ), setting %ix%i\n",
- wp->ws_col,
- wp->ws_row);
-#endif
-
- p->height = wp->ws_row;
- p->width = wp->ws_col;
- break;
- default:
- rtems_set_errno_and_return_minus_one(EINVAL);
- break;
- }
-
- return 0;
-}
diff --git a/telnetd/telnetd-init.c b/telnetd/telnetd-init.c
deleted file mode 100644
index 586aaef..0000000
--- a/telnetd/telnetd-init.c
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * Copyright (c) 2018 embedded brains GmbH. All rights reserved.
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <rtems/telnetd.h>
-
-rtems_status_code rtems_telnetd_initialize( void )
-{
- return rtems_telnetd_start( &rtems_telnetd_config );
-}
diff --git a/telnetd/telnetd.c b/telnetd/telnetd.c
deleted file mode 100644
index b8adec2..0000000
--- a/telnetd/telnetd.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/***********************************************************/
-/*
- *
- * The telnet DAEMON
- *
- * Author: 17,may 2001
- *
- * WORK: fernando.ruiz@ctv.es
- * HOME: correo@fernando-ruiz.com
- *
- * After start the net you can start this daemon.
- * It uses the previously inited pseudo-terminales (pty.c)
- * getting a new terminal with getpty(). This function
- * gives a terminal name passing a opened socket like parameter.
- *
- * With register_telnetd() you add a new command in the shell to start
- * this daemon interactively. (Login in /dev/console of course)
- *
- * Sorry but OOB is not still implemented. (This is the first version)
- *
- * Till Straumann <strauman@slac.stanford.edu>
- * - made the 'shell' interface more generic, i.e. it is now
- * possible to have 'telnetd' run an arbitrary 'shell'
- * program.
- *
- * Copyright (c) 2009, 2018 embedded brains GmbH and others.
- *
- * embedded brains GmbH
- * Dornierstr. 4
- * D-82178 Puchheim
- * Germany
- * <rtems@embedded-brains.de>
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <sys/queue.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <inttypes.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <syslog.h>
-
-#include <rtems.h>
-#include <rtems/pty.h>
-#include <rtems/shell.h>
-#include <rtems/telnetd.h>
-#include <rtems/thread.h>
-#include <rtems/userenv.h>
-
-#ifdef RTEMS_NETWORKING
-#include <rtems/rtems_bsdnet.h>
-#endif
-
-#define TELNETD_EVENT_SUCCESS RTEMS_EVENT_0
-
-#define TELNETD_EVENT_ERROR RTEMS_EVENT_1
-
-typedef struct telnetd_context telnetd_context;
-
-typedef struct telnetd_session {
- rtems_pty_context pty;
- char peername[16];
- telnetd_context *ctx;
- rtems_id task_id;
- LIST_ENTRY(telnetd_session) link;
-} telnetd_session;
-
-struct telnetd_context {
- rtems_telnetd_config_table config;
- int server_socket;
- rtems_id task_id;
- rtems_mutex mtx;
- LIST_HEAD(, telnetd_session) free_sessions;
- telnetd_session sessions[RTEMS_ZERO_LENGTH_ARRAY];
-};
-
-typedef union {
- struct sockaddr_in sin;
- struct sockaddr sa;
-} telnetd_address;
-
-RTEMS_NO_RETURN static void telnetd_session_fatal_error(
- const telnetd_context *ctx
-)
-{
- (void)rtems_event_send(ctx->task_id, TELNETD_EVENT_ERROR);
- rtems_task_exit();
-}
-
-static bool telnetd_login(telnetd_context *ctx, telnetd_session *session)
-{
- bool success;
-
- if (ctx->config.login_check == NULL) {
- return true;
- }
-
- success = rtems_shell_login_prompt(
- stdin,
- stderr,
- session->pty.name,
- ctx->config.login_check
- );
-
- if (!success) {
- syslog(
- LOG_AUTHPRIV | LOG_WARNING,
- "telnetd: too many wrong passwords entered from %s",
- session->peername
- );
- }
-
- return success;
-}
-
-static void telnetd_session_task(rtems_task_argument arg)
-{
- rtems_status_code sc;
- telnetd_session *session;
- telnetd_context *ctx;
- const char *path;
-
- session = (telnetd_session *) arg;
- ctx = session->ctx;
-
- sc = rtems_libio_set_private_env();
- if (sc != RTEMS_SUCCESSFUL) {
- telnetd_session_fatal_error(ctx);
- }
-
- path = rtems_pty_get_path(&session->pty);
-
- stdin = fopen(path, "r+");
- if (stdin == NULL) {
- telnetd_session_fatal_error(ctx);
- }
-
- stdout = fopen(path, "r+");
- if (stdout == NULL) {
- telnetd_session_fatal_error(ctx);
- }
-
- stderr = fopen(path, "r+");
- if (stderr == NULL) {
- telnetd_session_fatal_error(ctx);
- }
-
- (void)rtems_event_send(ctx->task_id, TELNETD_EVENT_SUCCESS);
-
- while (true) {
- rtems_event_set events;
-
- (void)rtems_event_system_receive(
- RTEMS_EVENT_SYSTEM_SERVER,
- RTEMS_WAIT | RTEMS_EVENT_ALL,
- RTEMS_NO_TIMEOUT,
- &events
- );
-
- syslog(
- LOG_DAEMON | LOG_INFO,
- "telnetd: accepted connection from %s on %s",
- session->peername,
- path
- );
-
- if (telnetd_login(ctx, session)) {
- (*ctx->config.command)(session->pty.name, ctx->config.arg);
- }
-
- syslog(
- LOG_DAEMON | LOG_INFO,
- "telnetd: releasing connection from %s on %s",
- session->peername,
- path
- );
-
- rtems_pty_close_socket(&session->pty);
-
- rtems_mutex_lock(&ctx->mtx);
- LIST_INSERT_HEAD(&ctx->free_sessions, session, link);
- rtems_mutex_unlock(&ctx->mtx);
- }
-}
-
-static void telnetd_sleep_after_error(void)
-{
- /* If something went wrong, sleep for some time */
- rtems_task_wake_after(10 * rtems_clock_get_ticks_per_second());
-}
-
-static void telnetd_server_task(rtems_task_argument arg)
-{
- telnetd_context *ctx;
-
- ctx = (telnetd_context *) arg;
-
- while (true) {
- telnetd_address peer;
- socklen_t address_len;
- int session_socket;
- telnetd_session *session;
-
- address_len = sizeof(peer.sin);
- session_socket = accept(ctx->server_socket, &peer.sa, &address_len);
- if (session_socket < 0) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot accept session");
- telnetd_sleep_after_error();
- continue;
- };
-
- rtems_mutex_lock(&ctx->mtx);
- session = LIST_FIRST(&ctx->free_sessions);
-
- if (session == NULL) {
- rtems_mutex_unlock(&ctx->mtx);
-
- (void)close(session_socket);
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: no free session available");
- telnetd_sleep_after_error();
- continue;
- }
-
- LIST_REMOVE(session, link);
- rtems_mutex_unlock(&ctx->mtx);
-
- rtems_pty_set_socket(&session->pty, session_socket);
-
- if (
- inet_ntop(
- AF_INET,
- &peer.sin.sin_addr,
- session->peername,
- sizeof(session->peername)
- ) == NULL
- ) {
- strlcpy(session->peername, "<UNKNOWN>", sizeof(session->peername));
- }
-
- (void)rtems_event_system_send(session->task_id, RTEMS_EVENT_SYSTEM_SERVER);
- }
-}
-
-static void telnetd_destroy_context(telnetd_context *ctx)
-{
- telnetd_session *session;
-
- LIST_FOREACH(session, &ctx->free_sessions, link) {
- if (session->task_id != 0) {
- (void)rtems_task_delete(session->task_id);
- }
-
- (void)unlink(rtems_pty_get_path(&session->pty));
- }
-
- if (ctx->server_socket >= 0) {
- (void)close(ctx->server_socket);
- }
-
- rtems_mutex_destroy(&ctx->mtx);
- free(ctx);
-}
-
-static rtems_status_code telnetd_create_server_socket(telnetd_context *ctx)
-{
- telnetd_address srv;
- socklen_t address_len;
- int enable;
-
- ctx->server_socket = socket(PF_INET, SOCK_STREAM, 0);
- if (ctx->server_socket < 0) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot create server socket");
- return RTEMS_UNSATISFIED;
- }
-
- enable = 1;
- (void)setsockopt(
- ctx->server_socket,
- SOL_SOCKET,
- SO_KEEPALIVE,
- &enable,
- sizeof(enable)
- );
-
- memset(&srv, 0, sizeof(srv));
- srv.sin.sin_family = AF_INET;
- srv.sin.sin_port = htons(ctx->config.port);
- address_len = sizeof(srv.sin);
-
- if (bind(ctx->server_socket, &srv.sa, address_len) != 0) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot bind server socket");
- return RTEMS_RESOURCE_IN_USE;
- };
-
- if (listen(ctx->server_socket, ctx->config.client_maximum) != 0) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot listen on server socket");
- return RTEMS_UNSATISFIED;
- };
-
- return RTEMS_SUCCESSFUL;
-}
-
-static rtems_status_code telnetd_create_session_tasks(telnetd_context *ctx)
-{
- uint16_t i;
-
- ctx->task_id = rtems_task_self();
-
- for (i = 0; i < ctx->config.client_maximum; ++i) {
- telnetd_session *session;
- rtems_status_code sc;
- const char *path;
- rtems_event_set events;
-
- session = &ctx->sessions[i];
- session->ctx = ctx;
- rtems_mutex_init(&ctx->mtx, "Telnet");
- LIST_INSERT_HEAD(&ctx->free_sessions, session, link);
-
- sc = rtems_task_create(
- rtems_build_name('T', 'N', 'T', 'a' + i % 26),
- ctx->config.priority,
- ctx->config.stack_size,
- RTEMS_DEFAULT_MODES,
- RTEMS_FLOATING_POINT,
- &session->task_id
- );
- if (sc != RTEMS_SUCCESSFUL) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot create session task");
- return RTEMS_UNSATISFIED;
- }
-
- path = rtems_pty_initialize(&session->pty, i);
- if (path == NULL) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot create session PTY");
- return RTEMS_UNSATISFIED;
- }
-
- (void)rtems_task_start(
- session->task_id,
- telnetd_session_task,
- (rtems_task_argument) session
- );
-
- (void)rtems_event_receive(
- TELNETD_EVENT_SUCCESS | TELNETD_EVENT_ERROR,
- RTEMS_WAIT | RTEMS_EVENT_ANY,
- RTEMS_NO_TIMEOUT,
- &events
- );
-
- if ((events & TELNETD_EVENT_ERROR) != 0) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot initialize session task");
- return RTEMS_UNSATISFIED;
- }
- }
-
- return RTEMS_SUCCESSFUL;
-}
-
-rtems_status_code rtems_telnetd_start(const rtems_telnetd_config_table* config)
-{
- telnetd_context *ctx;
- rtems_status_code sc;
- uint16_t client_maximum;
-
- if (config->command == NULL) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: configuration with invalid command");
- return RTEMS_INVALID_ADDRESS;
- }
-
- if (config->client_maximum == 0) {
- client_maximum = 5;
- } else {
- client_maximum = config->client_maximum;
- }
-
- ctx = calloc(
- 1,
- sizeof(*ctx) + client_maximum * sizeof(ctx->sessions[0])
- );
- if (ctx == NULL) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot allocate server context");
- return RTEMS_UNSATISFIED;
- }
-
- ctx->config = *config;
- ctx->config.client_maximum = client_maximum;
- ctx->server_socket = -1;
- LIST_INIT(&ctx->free_sessions);
-
- /* Check priority */
-#ifdef RTEMS_NETWORKING
- if (ctx->config.priority == 0) {
- ctx->config.priority = rtems_bsdnet_config.network_task_priority;
- }
-#endif
- if (ctx->config.priority == 0) {
- ctx->config.priority = 100;
- }
-
- /* Check stack size */
- if (ctx->config.stack_size == 0) {
- ctx->config.stack_size = (size_t)32 * 1024;
- }
-
- if (ctx->config.port == 0) {
- ctx->config.port = 23;
- }
-
- sc = telnetd_create_server_socket(ctx);
- if (sc != RTEMS_SUCCESSFUL) {
- telnetd_destroy_context(ctx);
- return sc;
- }
-
- sc = telnetd_create_session_tasks(ctx);
- if (sc != RTEMS_SUCCESSFUL) {
- telnetd_destroy_context(ctx);
- return sc;
- }
-
- sc = rtems_task_create(
- rtems_build_name('T', 'N', 'T', 'D'),
- ctx->config.priority,
- RTEMS_MINIMUM_STACK_SIZE,
- RTEMS_DEFAULT_MODES,
- RTEMS_FLOATING_POINT,
- &ctx->task_id
- );
- if (sc != RTEMS_SUCCESSFUL) {
- syslog(LOG_DAEMON | LOG_ERR, "telnetd: cannot create server task");
- telnetd_destroy_context(ctx);
- return RTEMS_UNSATISFIED;
- }
-
- (void)rtems_task_start(
- ctx->task_id,
- telnetd_server_task,
- (rtems_task_argument) ctx
- );
-
- syslog(
- LOG_DAEMON | LOG_INFO,
- "telnetd: started successfully on port %" PRIu16, ctx->config.port
- );
- return RTEMS_SUCCESSFUL;
-}