From 2973d0c78e9b8eed3c5af239927c6bd36af64604 Mon Sep 17 00:00:00 2001 From: "B. Watson" Date: Wed, 13 Mar 2019 02:50:42 -0400 Subject: initial commit --- uip/apps/telnetd/Makefile.telnetd | 1 + uip/apps/telnetd/shell.c | 123 ++++++++++++++ uip/apps/telnetd/shell.h | 104 +++++++++++ uip/apps/telnetd/telnetd.c | 350 ++++++++++++++++++++++++++++++++++++++ uip/apps/telnetd/telnetd.h | 63 +++++++ 5 files changed, 641 insertions(+) create mode 100644 uip/apps/telnetd/Makefile.telnetd create mode 100644 uip/apps/telnetd/shell.c create mode 100644 uip/apps/telnetd/shell.h create mode 100644 uip/apps/telnetd/telnetd.c create mode 100644 uip/apps/telnetd/telnetd.h (limited to 'uip/apps/telnetd') diff --git a/uip/apps/telnetd/Makefile.telnetd b/uip/apps/telnetd/Makefile.telnetd new file mode 100644 index 0000000..afb1b59 --- /dev/null +++ b/uip/apps/telnetd/Makefile.telnetd @@ -0,0 +1 @@ +APP_SOURCES += telnetd.c shell.c memb.c diff --git a/uip/apps/telnetd/shell.c b/uip/apps/telnetd/shell.c new file mode 100644 index 0000000..9345cae --- /dev/null +++ b/uip/apps/telnetd/shell.c @@ -0,0 +1,123 @@ + /* + * Copyright (c) 2003, Adam Dunkels. + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * 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. + * + * This file is part of the uIP TCP/IP stack. + * + * $Id: shell.c,v 1.1 2006/06/07 09:43:54 adam Exp $ + * + */ + +#include "shell.h" + +#include + +struct ptentry { + char *commandstr; + void (* pfunc)(char *str); +}; + +#define SHELL_PROMPT "uIP 1.0> " + +/*---------------------------------------------------------------------------*/ +static void +parse(register char *str, struct ptentry *t) +{ + struct ptentry *p; + for(p = t; p->commandstr != NULL; ++p) { + if(strncmp(p->commandstr, str, strlen(p->commandstr)) == 0) { + break; + } + } + + p->pfunc(str); +} +/*---------------------------------------------------------------------------*/ +static void +inttostr(register char *str, unsigned int i) +{ + str[0] = '0' + i / 100; + if(str[0] == '0') { + str[0] = ' '; + } + str[1] = '0' + (i / 10) % 10; + if(str[0] == ' ' && str[1] == '0') { + str[1] = ' '; + } + str[2] = '0' + i % 10; + str[3] = ' '; + str[4] = 0; +} +/*---------------------------------------------------------------------------*/ +static void +help(char *str) +{ + shell_output("Available commands:", ""); + shell_output("stats - show network statistics", ""); + shell_output("conn - show TCP connections", ""); + shell_output("help, ? - show help", ""); + shell_output("exit - exit shell", ""); +} +/*---------------------------------------------------------------------------*/ +static void +unknown(char *str) +{ + if(strlen(str) > 0) { + shell_output("Unknown command: ", str); + } +} +/*---------------------------------------------------------------------------*/ +static struct ptentry parsetab[] = + {{"stats", help}, + {"conn", help}, + {"help", help}, + {"exit", shell_quit}, + {"?", help}, + + /* Default action */ + {NULL, unknown}}; +/*---------------------------------------------------------------------------*/ +void +shell_init(void) +{ +} +/*---------------------------------------------------------------------------*/ +void +shell_start(void) +{ + shell_output("uIP command shell", ""); + shell_output("Type '?' and return for help", ""); + shell_prompt(SHELL_PROMPT); +} +/*---------------------------------------------------------------------------*/ +void +shell_input(char *cmd) +{ + parse(cmd, parsetab); + shell_prompt(SHELL_PROMPT); +} +/*---------------------------------------------------------------------------*/ diff --git a/uip/apps/telnetd/shell.h b/uip/apps/telnetd/shell.h new file mode 100644 index 0000000..b57d7be --- /dev/null +++ b/uip/apps/telnetd/shell.h @@ -0,0 +1,104 @@ +/** + * \file + * Interface for the Contiki shell. + * \author Adam Dunkels + * + * Some of the functions declared in this file must be implemented as + * a shell back-end in the architecture specific files of a Contiki + * port. + */ + + +/* + * Copyright (c) 2003, Adam Dunkels. + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * 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. + * + * This file is part of the Contiki desktop OS. + * + * $Id: shell.h,v 1.1 2006/06/07 09:43:54 adam Exp $ + * + */ +#ifndef __SHELL_H__ +#define __SHELL_H__ + +/** + * Initialize the shell. + * + * Called when the shell front-end process starts. This function may + * be used to start listening for signals. + */ +void shell_init(void); + +/** + * Start the shell back-end. + * + * Called by the front-end when a new shell is started. + */ +void shell_start(void); + +/** + * Process a shell command. + * + * This function will be called by the shell GUI / telnet server whan + * a command has been entered that should be processed by the shell + * back-end. + * + * \param command The command to be processed. + */ +void shell_input(char *command); + +/** + * Quit the shell. + * + */ +void shell_quit(char *); + + +/** + * Print a string to the shell window. + * + * This function is implemented by the shell GUI / telnet server and + * can be called by the shell back-end to output a string in the + * shell window. The string is automatically appended with a linebreak. + * + * \param str1 The first half of the string to be output. + * \param str2 The second half of the string to be output. + */ +void shell_output(char *str1, char *str2); + +/** + * Print a prompt to the shell window. + * + * This function can be used by the shell back-end to print out a + * prompt to the shell window. + * + * \param prompt The prompt to be printed. + * + */ +void shell_prompt(char *prompt); + +#endif /* __SHELL_H__ */ diff --git a/uip/apps/telnetd/telnetd.c b/uip/apps/telnetd/telnetd.c new file mode 100644 index 0000000..7a5ae85 --- /dev/null +++ b/uip/apps/telnetd/telnetd.c @@ -0,0 +1,350 @@ +/* + * Copyright (c) 2003, Adam Dunkels. + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * 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. + * + * This file is part of the uIP TCP/IP stack + * + * $Id: telnetd.c,v 1.2 2006/06/07 09:43:54 adam Exp $ + * + */ + +#include "uip.h" +#include "telnetd.h" +#include "memb.h" +#include "shell.h" + +#include + +#define ISO_nl 0x0a +#define ISO_cr 0x0d + +struct telnetd_line { + char line[TELNETD_CONF_LINELEN]; +}; +MEMB(linemem, struct telnetd_line, TELNETD_CONF_NUMLINES); + +#define STATE_NORMAL 0 +#define STATE_IAC 1 +#define STATE_WILL 2 +#define STATE_WONT 3 +#define STATE_DO 4 +#define STATE_DONT 5 +#define STATE_CLOSE 6 + +static struct telnetd_state s; + +#define TELNET_IAC 255 +#define TELNET_WILL 251 +#define TELNET_WONT 252 +#define TELNET_DO 253 +#define TELNET_DONT 254 +/*---------------------------------------------------------------------------*/ +static char * +alloc_line(void) +{ + return memb_alloc(&linemem); +} +/*---------------------------------------------------------------------------*/ +static void +dealloc_line(char *line) +{ + memb_free(&linemem, line); +} +/*---------------------------------------------------------------------------*/ +void +shell_quit(char *str) +{ + s.state = STATE_CLOSE; +} +/*---------------------------------------------------------------------------*/ +static void +sendline(char *line) +{ + static unsigned int i; + + for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { + if(s.lines[i] == NULL) { + s.lines[i] = line; + break; + } + } + if(i == TELNETD_CONF_NUMLINES) { + dealloc_line(line); + } +} +/*---------------------------------------------------------------------------*/ +void +shell_prompt(char *str) +{ + char *line; + line = alloc_line(); + if(line != NULL) { + strncpy(line, str, TELNETD_CONF_LINELEN); + /* petsciiconv_toascii(line, TELNETD_CONF_LINELEN);*/ + sendline(line); + } +} +/*---------------------------------------------------------------------------*/ +void +shell_output(char *str1, char *str2) +{ + static unsigned len; + char *line; + + line = alloc_line(); + if(line != NULL) { + len = strlen(str1); + strncpy(line, str1, TELNETD_CONF_LINELEN); + if(len < TELNETD_CONF_LINELEN) { + strncpy(line + len, str2, TELNETD_CONF_LINELEN - len); + } + len = strlen(line); + if(len < TELNETD_CONF_LINELEN - 2) { + line[len] = ISO_cr; + line[len+1] = ISO_nl; + line[len+2] = 0; + } + /* petsciiconv_toascii(line, TELNETD_CONF_LINELEN);*/ + sendline(line); + } +} +/*---------------------------------------------------------------------------*/ +void +telnetd_init(void) +{ + uip_listen(HTONS(23)); + memb_init(&linemem); + shell_init(); +} +/*---------------------------------------------------------------------------*/ +static void +acked(void) +{ + static unsigned int i; + + while(s.numsent > 0) { + dealloc_line(s.lines[0]); + for(i = 1; i < TELNETD_CONF_NUMLINES; ++i) { + s.lines[i - 1] = s.lines[i]; + } + s.lines[TELNETD_CONF_NUMLINES - 1] = NULL; + --s.numsent; + } +} +/*---------------------------------------------------------------------------*/ +static void +senddata(void) +{ + static char *bufptr, *lineptr; + static int buflen, linelen; + + bufptr = uip_appdata; + buflen = 0; + for(s.numsent = 0; s.numsent < TELNETD_CONF_NUMLINES && + s.lines[s.numsent] != NULL ; ++s.numsent) { + lineptr = s.lines[s.numsent]; + linelen = strlen(lineptr); + if(linelen > TELNETD_CONF_LINELEN) { + linelen = TELNETD_CONF_LINELEN; + } + if(buflen + linelen < uip_mss()) { + memcpy(bufptr, lineptr, linelen); + bufptr += linelen; + buflen += linelen; + } else { + break; + } + } + uip_send(uip_appdata, buflen); +} +/*---------------------------------------------------------------------------*/ +static void +closed(void) +{ + static unsigned int i; + + for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { + if(s.lines[i] != NULL) { + dealloc_line(s.lines[i]); + } + } +} +/*---------------------------------------------------------------------------*/ +static void +get_char(u8_t c) +{ + if(c == ISO_cr) { + return; + } + + s.buf[(int)s.bufptr] = c; + if(s.buf[(int)s.bufptr] == ISO_nl || + s.bufptr == sizeof(s.buf) - 1) { + if(s.bufptr > 0) { + s.buf[(int)s.bufptr] = 0; + /* petsciiconv_topetscii(s.buf, TELNETD_CONF_LINELEN);*/ + } + shell_input(s.buf); + s.bufptr = 0; + } else { + ++s.bufptr; + } +} +/*---------------------------------------------------------------------------*/ +static void +sendopt(u8_t option, u8_t value) +{ + char *line; + line = alloc_line(); + if(line != NULL) { + line[0] = TELNET_IAC; + line[1] = option; + line[2] = value; + line[3] = 0; + sendline(line); + } +} +/*---------------------------------------------------------------------------*/ +static void +newdata(void) +{ + u16_t len; + u8_t c; + char *dataptr; + + + len = uip_datalen(); + dataptr = (char *)uip_appdata; + + while(len > 0 && s.bufptr < sizeof(s.buf)) { + c = *dataptr; + ++dataptr; + --len; + switch(s.state) { + case STATE_IAC: + if(c == TELNET_IAC) { + get_char(c); + s.state = STATE_NORMAL; + } else { + switch(c) { + case TELNET_WILL: + s.state = STATE_WILL; + break; + case TELNET_WONT: + s.state = STATE_WONT; + break; + case TELNET_DO: + s.state = STATE_DO; + break; + case TELNET_DONT: + s.state = STATE_DONT; + break; + default: + s.state = STATE_NORMAL; + break; + } + } + break; + case STATE_WILL: + /* Reply with a DONT */ + sendopt(TELNET_DONT, c); + s.state = STATE_NORMAL; + break; + + case STATE_WONT: + /* Reply with a DONT */ + sendopt(TELNET_DONT, c); + s.state = STATE_NORMAL; + break; + case STATE_DO: + /* Reply with a WONT */ + sendopt(TELNET_WONT, c); + s.state = STATE_NORMAL; + break; + case STATE_DONT: + /* Reply with a WONT */ + sendopt(TELNET_WONT, c); + s.state = STATE_NORMAL; + break; + case STATE_NORMAL: + if(c == TELNET_IAC) { + s.state = STATE_IAC; + } else { + get_char(c); + } + break; + } + + + } + +} +/*---------------------------------------------------------------------------*/ +void +telnetd_appcall(void) +{ + static unsigned int i; + if(uip_connected()) { + /* tcp_markconn(uip_conn, &s);*/ + for(i = 0; i < TELNETD_CONF_NUMLINES; ++i) { + s.lines[i] = NULL; + } + s.bufptr = 0; + s.state = STATE_NORMAL; + + shell_start(); + } + + if(s.state == STATE_CLOSE) { + s.state = STATE_NORMAL; + uip_close(); + return; + } + + if(uip_closed() || + uip_aborted() || + uip_timedout()) { + closed(); + } + + if(uip_acked()) { + acked(); + } + + if(uip_newdata()) { + newdata(); + } + + if(uip_rexmit() || + uip_newdata() || + uip_acked() || + uip_connected() || + uip_poll()) { + senddata(); + } +} +/*---------------------------------------------------------------------------*/ diff --git a/uip/apps/telnetd/telnetd.h b/uip/apps/telnetd/telnetd.h new file mode 100644 index 0000000..2ee8acd --- /dev/null +++ b/uip/apps/telnetd/telnetd.h @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2003, Adam Dunkels. + * 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. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * 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. + * + * This file is part of the uIP TCP/IP stack + * + * $Id: telnetd.h,v 1.2 2006/06/07 09:43:54 adam Exp $ + * + */ +#ifndef __TELNETD_H__ +#define __TELNETD_H__ + +#include "uipopt.h" + +void telnetd_appcall(void); + +#ifndef TELNETD_CONF_LINELEN +#define TELNETD_CONF_LINELEN 40 +#endif +#ifndef TELNETD_CONF_NUMLINES +#define TELNETD_CONF_NUMLINES 16 +#endif + +struct telnetd_state { + char *lines[TELNETD_CONF_NUMLINES]; + char buf[TELNETD_CONF_LINELEN]; + char bufptr; + u8_t numsent; + u8_t state; +}; + +typedef struct telnetd_state uip_tcp_appstate_t; + +#ifndef UIP_APPCALL +#define UIP_APPCALL telnetd_appcall +#endif + +#endif /* __TELNETD_H__ */ -- cgit v1.2.3