nsh_stdsession() cannot use the same login logic as nsh_session(); Also put telnet login in a separate file for symmetry
This commit is contained in:
Gregory Nutt
parent
93d9d5e4ca
commit
07cf99130c
@ -46,13 +46,15 @@ CSRCS += nsh_timcmds.c nsh_envcmds.c nsh_syscmds.c nsh_dbgcmds.c
|
||||
|
||||
ifeq ($(CONFIG_NFILE_STREAMS),0)
|
||||
CSRCS += nsh_stdsession.c
|
||||
ifeq ($(CONFIG_NSH_CONSOLE_LOGIN),y)
|
||||
CSRCS += nsh_stdlogin.c
|
||||
endif
|
||||
else
|
||||
CSRCS += nsh_session.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_NSH_CONSOLE_LOGIN),y)
|
||||
CSRCS += nsh_login.c
|
||||
endif
|
||||
endif
|
||||
|
||||
ifneq ($(CONFIG_NFILE_DESCRIPTORS),0)
|
||||
CSRCS += nsh_fsutils.c
|
||||
@ -93,6 +95,9 @@ endif
|
||||
|
||||
ifeq ($(CONFIG_NSH_TELNET),y)
|
||||
CSRCS += nsh_telnetd.c
|
||||
ifeq ($(CONFIG_NSH_TELNET_LOGIN),y)
|
||||
CSRCS += nsh_telnetlogin.c
|
||||
endif
|
||||
endif
|
||||
|
||||
ifneq ($(CONFIG_NSH_DISABLESCRIPT),y)
|
||||
|
||||
@ -888,7 +888,15 @@ int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline);
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NSH_CONSOLE_LOGIN
|
||||
# if CONFIG_NFILE_DESCRIPTORS > 0
|
||||
int nsh_login(FAR struct console_stdio_s *pstate);
|
||||
# else
|
||||
int nsh_stdlogin(FAR struct console_stdio_s *pstate);
|
||||
# endif
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET_LOGIN
|
||||
int nsh_telnetlogin(FAR struct console_stdio_s *pstate);
|
||||
#endif
|
||||
|
||||
/* Application interface */
|
||||
|
||||
228
nshlib/nsh_stdlogin.c
Normal file
228
nshlib/nsh_stdlogin.c
Normal file
@ -0,0 +1,228 @@
|
||||
/****************************************************************************
|
||||
* apps/nshlib/nsh_stdlogin.c
|
||||
*
|
||||
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
|
||||
* COPYRIGHT OWNER 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#include <apps/fsutils/passwd.h>
|
||||
#ifdef CONFIG_NSH_CLE
|
||||
# include <apps/cle.h>
|
||||
#else
|
||||
# include <apps/readline.h>
|
||||
#endif
|
||||
|
||||
#include "nsh.h"
|
||||
#include "nsh_console.h"
|
||||
|
||||
#ifdef CONFIG_NSH_CONSOLE_LOGIN
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_stdtoken
|
||||
****************************************************************************/
|
||||
|
||||
static void nsh_stdtoken(FAR struct console_stdio_s *pstate,
|
||||
FAR char *buffer, size_t buflen)
|
||||
{
|
||||
FAR char *start;
|
||||
FAR char *endp1;
|
||||
bool quoted = false;
|
||||
|
||||
/* Find the start of token. Either (1) the first non-white space
|
||||
* character on the command line or (2) the character immediately after
|
||||
* a quotation mark.
|
||||
*/
|
||||
|
||||
for (start = pstate->cn_line; *start; start++)
|
||||
{
|
||||
/* Does the token open with a quotation mark */
|
||||
|
||||
if (*start == '"')
|
||||
{
|
||||
/* Yes.. break out with start set to the character after the
|
||||
* quotation mark.
|
||||
*/
|
||||
|
||||
quoted = true;
|
||||
start++;
|
||||
break;
|
||||
}
|
||||
|
||||
/* No, then any non-whitespace is the first character of the token */
|
||||
|
||||
else if (!isspace(*start))
|
||||
{
|
||||
/* Break out with start set to the first character of the token */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Find the terminating character after the token on the command line. The
|
||||
* terminating character is either (1) the matching quotation mark, or (2)
|
||||
* any whitespace.
|
||||
*/
|
||||
|
||||
for (endp1 = start; *endp1; endp1++)
|
||||
{
|
||||
/* Did the token begin with a quotation mark? */
|
||||
|
||||
if (quoted)
|
||||
{
|
||||
/* Yes.. then only the matching quotation mark (or end of string)
|
||||
* terminates
|
||||
*/
|
||||
|
||||
if (*endp1 == '"')
|
||||
{
|
||||
/* Break out... endp1 points to closing quotation mark */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* No.. any whitespace (or end of string) terminates */
|
||||
|
||||
else if (isspace(*endp1))
|
||||
{
|
||||
/* Break out... endp1 points to first while space encountered */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Replace terminating character with a NUL terminator */
|
||||
|
||||
*endp1 = '\0';
|
||||
|
||||
/* Copied the token into the buffer */
|
||||
|
||||
strncpy(buffer, start, buflen);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_stdlogin
|
||||
*
|
||||
* Description:
|
||||
* Prompt the user for a username and password. Return a failure if valid
|
||||
* credentials are not returned (after some retries.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int nsh_stdlogin(FAR struct console_stdio_s *pstate)
|
||||
{
|
||||
char username[16];
|
||||
char password[16];
|
||||
int ret;
|
||||
int i;
|
||||
|
||||
/* Loop for the configured number of retries */
|
||||
|
||||
for (i = 0; i < CONFIG_NSH_LOGIN_FAILCOUNT; i++)
|
||||
{
|
||||
/* Ask for the login username */
|
||||
|
||||
printf("%s", g_userprompt);
|
||||
|
||||
/* Get the reponse, handling all possible cases */
|
||||
|
||||
#ifdef CONFIG_NSH_CLE
|
||||
ret = cle(pstate->cn_line, CONFIG_NSH_LINELEN,
|
||||
stdin, stdout);
|
||||
#else
|
||||
ret = std_readline(pstate->cn_line, CONFIG_NSH_LINELEN);
|
||||
#endif
|
||||
|
||||
username[0] = '\0';
|
||||
if (ret != EOF)
|
||||
{
|
||||
/* Parse out the username */
|
||||
|
||||
nsh_stdtoken(pstate, username, sizeof(username));
|
||||
}
|
||||
|
||||
/* Ask for the login password */
|
||||
|
||||
printf("%s", g_passwordprompt);
|
||||
|
||||
password[0] = '\0';
|
||||
if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, stdin) != NULL)
|
||||
{
|
||||
/* Parse out the password */
|
||||
|
||||
nsh_stdtoken(pstate, password, sizeof(password));
|
||||
|
||||
/* Verify the username and password */
|
||||
|
||||
#ifdef CONFIG_FSUTILS_PASSWD
|
||||
ret = passwd_verify(username, password);
|
||||
if (PASSWORD_VERIFY_MATCH(ret))
|
||||
|
||||
#else
|
||||
if (strcmp(password, CONFIG_NSH_LOGIN_PASSWORD) == 0 &&
|
||||
strcmp(username, CONFIG_NSH_LOGIN_USERNAME) == 0)
|
||||
#endif
|
||||
{
|
||||
printf("%s", g_loginsuccess);
|
||||
return OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
printf("%s", g_badcredentials);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Too many failed login attempts */
|
||||
|
||||
printf("%s", g_loginfailure);
|
||||
return -1;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_NSH_CONSOLE_LOGIN */
|
||||
@ -87,7 +87,7 @@ int nsh_session(FAR struct console_stdio_s *pstate)
|
||||
#ifdef CONFIG_NSH_CONSOLE_LOGIN
|
||||
/* Login User and Password Check */
|
||||
|
||||
if (nsh_login(pstate) != OK)
|
||||
if (nsh_stdlogin(pstate) != OK)
|
||||
{
|
||||
nsh_exit(vtbl, 1);
|
||||
return -1; /* nsh_exit does not return */
|
||||
@ -109,6 +109,7 @@ int nsh_session(FAR struct console_stdio_s *pstate)
|
||||
/* Output the fixed message of the day */
|
||||
|
||||
printf("%s\n", g_nshmotd);
|
||||
|
||||
# endif
|
||||
#endif
|
||||
|
||||
|
||||
@ -40,15 +40,10 @@
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <unistd.h>
|
||||
#include <ctype.h>
|
||||
#include <assert.h>
|
||||
#include <debug.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <arpa/inet.h>
|
||||
|
||||
#include <apps/fsutils/passwd.h>
|
||||
#include <apps/netutils/telnetd.h>
|
||||
|
||||
#include "nsh.h"
|
||||
@ -56,235 +51,15 @@
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET_LOGIN
|
||||
|
||||
# define TELNET_IAC 255
|
||||
# define TELNET_WILL 251
|
||||
# define TELNET_WONT 252
|
||||
# define TELNET_DO 253
|
||||
# define TELNET_DONT 254
|
||||
# define TELNET_USE_ECHO 1
|
||||
# define TELNET_NOTUSE_ECHO 0
|
||||
|
||||
#endif /* CONFIG_NSH_TELNET_LOGIN */
|
||||
|
||||
/****************************************************************************
|
||||
* Private Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnetecho
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET_LOGIN
|
||||
static void nsh_telnetecho(FAR struct console_stdio_s *pstate, uint8_t is_use)
|
||||
{
|
||||
uint8_t optbuf[4];
|
||||
optbuf[0] = TELNET_IAC;
|
||||
optbuf[1] = (is_use == TELNET_USE_ECHO) ? TELNET_WILL : TELNET_DO;
|
||||
optbuf[2] = 1;
|
||||
optbuf[3] = 0;
|
||||
fputs((char *)optbuf, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnettoken
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET_LOGIN
|
||||
static void nsh_telnettoken(FAR struct console_stdio_s *pstate,
|
||||
FAR char *buffer, size_t buflen)
|
||||
{
|
||||
FAR char *start;
|
||||
FAR char *endp1;
|
||||
bool quoted = false;
|
||||
|
||||
/* Find the start of token. Either (1) the first non-white space
|
||||
* character on the command line or (2) the character immediately after
|
||||
* a quotation mark.
|
||||
*/
|
||||
|
||||
for (start = pstate->cn_line; *start; start++)
|
||||
{
|
||||
/* Does the token open with a quotation mark */
|
||||
|
||||
if (*start == '"')
|
||||
{
|
||||
/* Yes.. break out with start set to the character after the
|
||||
* quotation mark.
|
||||
*/
|
||||
|
||||
quoted = true;
|
||||
start++;
|
||||
break;
|
||||
}
|
||||
|
||||
/* No, then any non-whitespace is the first character of the token */
|
||||
|
||||
else if (!isspace(*start))
|
||||
{
|
||||
/* Break out with start set to the first character of the token */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Find the terminating character after the token on the command line. The
|
||||
* terminating character is either (1) the matching quotation mark, or (2)
|
||||
* any whitespace.
|
||||
*/
|
||||
|
||||
for (endp1 = start; *endp1; endp1++)
|
||||
{
|
||||
/* Did the token begin with a quotation mark? */
|
||||
|
||||
if (quoted)
|
||||
{
|
||||
/* Yes.. then only the matching quotation mark (or end of string)
|
||||
* terminates
|
||||
*/
|
||||
|
||||
if (*endp1 == '"')
|
||||
{
|
||||
/* Break out... endp1 points to closing quotation mark */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* No.. any whitespace (or end of string) terminates */
|
||||
|
||||
else if (isspace(*endp1))
|
||||
{
|
||||
/* Break out... endp1 points to first while space encountered */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Replace terminating character with a NUL terminator */
|
||||
|
||||
*endp1 = '\0';
|
||||
|
||||
/* Copied the token into the buffer */
|
||||
|
||||
strncpy(buffer, start, buflen);
|
||||
}
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnetlogin
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET_LOGIN
|
||||
static int nsh_telnetlogin(FAR struct console_stdio_s *pstate)
|
||||
{
|
||||
char username[16];
|
||||
char password[16];
|
||||
#ifdef CONFIG_FSUTILS_PASSWD
|
||||
int ret;
|
||||
#endif
|
||||
int i;
|
||||
|
||||
/* Present the NSH Telnet greeting */
|
||||
|
||||
fputs(g_telnetgreeting, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
|
||||
/* Loop for the configured number of retries */
|
||||
|
||||
for (i = 0; i < CONFIG_NSH_LOGIN_FAILCOUNT; i++)
|
||||
{
|
||||
/* Ask for the login username */
|
||||
|
||||
fputs(g_userprompt, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
|
||||
username[0] = '\0';
|
||||
if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, INSTREAM(pstate)) != NULL)
|
||||
{
|
||||
/* Parse out the username */
|
||||
|
||||
nsh_telnettoken(pstate, username, sizeof(username));
|
||||
}
|
||||
|
||||
/* Ask for the login password */
|
||||
|
||||
fputs(g_passwordprompt, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
nsh_telnetecho(pstate, TELNET_NOTUSE_ECHO);
|
||||
|
||||
password[0] = '\0';
|
||||
if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, INSTREAM(pstate)) != NULL)
|
||||
{
|
||||
/* Parse out the password */
|
||||
|
||||
nsh_telnettoken(pstate, password, sizeof(password));
|
||||
|
||||
/* Verify the username and password */
|
||||
|
||||
#ifdef CONFIG_FSUTILS_PASSWD
|
||||
ret = passwd_verify(username, password);
|
||||
if (PASSWORD_VERIFY_MATCH(ret))
|
||||
#else
|
||||
if (strcmp(password, CONFIG_NSH_LOGIN_PASSWORD) == 0 &&
|
||||
strcmp(username, CONFIG_NSH_LOGIN_USERNAME) == 0)
|
||||
#endif
|
||||
{
|
||||
fputs(g_loginsuccess, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
nsh_telnetecho(pstate, TELNET_USE_ECHO);
|
||||
return OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
fputs(g_badcredentials, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
}
|
||||
}
|
||||
|
||||
nsh_telnetecho(pstate, TELNET_USE_ECHO);
|
||||
}
|
||||
|
||||
/* Too many failed login attempts */
|
||||
|
||||
fputs(g_loginfailure, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
return -1;
|
||||
}
|
||||
#endif /* CONFIG_NSH_TELNET_LOGIN */
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnetmain
|
||||
****************************************************************************/
|
||||
|
||||
int nsh_telnetmain(int argc, char *argv[])
|
||||
static int nsh_telnetmain(int argc, char *argv[])
|
||||
{
|
||||
FAR struct console_stdio_s *pstate = nsh_newconsole();
|
||||
FAR struct nsh_vtbl_s *vtbl;
|
||||
|
||||
251
nshlib/nsh_telnetlogin.c
Normal file
251
nshlib/nsh_telnetlogin.c
Normal file
@ -0,0 +1,251 @@
|
||||
/****************************************************************************
|
||||
* apps/nshlib/nsh_telnetlogin.c
|
||||
*
|
||||
* Copyright (C) 2007-2013, 2016 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 Gregory Nutt nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
|
||||
* COPYRIGHT OWNER 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#include <apps/fsutils/passwd.h>
|
||||
|
||||
#include "nsh.h"
|
||||
#include "nsh_console.h"
|
||||
|
||||
#ifdef CONFIG_NSH_TELNET_LOGIN
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define TELNET_IAC 255
|
||||
#define TELNET_WILL 251
|
||||
#define TELNET_WONT 252
|
||||
#define TELNET_DO 253
|
||||
#define TELNET_DONT 254
|
||||
#define TELNET_USE_ECHO 1
|
||||
#define TELNET_NOTUSE_ECHO 0
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnetecho
|
||||
****************************************************************************/
|
||||
|
||||
static void nsh_telnetecho(FAR struct console_stdio_s *pstate, uint8_t is_use)
|
||||
{
|
||||
uint8_t optbuf[4];
|
||||
optbuf[0] = TELNET_IAC;
|
||||
optbuf[1] = (is_use == TELNET_USE_ECHO) ? TELNET_WILL : TELNET_DO;
|
||||
optbuf[2] = 1;
|
||||
optbuf[3] = 0;
|
||||
fputs((char *)optbuf, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnettoken
|
||||
****************************************************************************/
|
||||
|
||||
static void nsh_telnettoken(FAR struct console_stdio_s *pstate,
|
||||
FAR char *buffer, size_t buflen)
|
||||
{
|
||||
FAR char *start;
|
||||
FAR char *endp1;
|
||||
bool quoted = false;
|
||||
|
||||
/* Find the start of token. Either (1) the first non-white space
|
||||
* character on the command line or (2) the character immediately after
|
||||
* a quotation mark.
|
||||
*/
|
||||
|
||||
for (start = pstate->cn_line; *start; start++)
|
||||
{
|
||||
/* Does the token open with a quotation mark */
|
||||
|
||||
if (*start == '"')
|
||||
{
|
||||
/* Yes.. break out with start set to the character after the
|
||||
* quotation mark.
|
||||
*/
|
||||
|
||||
quoted = true;
|
||||
start++;
|
||||
break;
|
||||
}
|
||||
|
||||
/* No, then any non-whitespace is the first character of the token */
|
||||
|
||||
else if (!isspace(*start))
|
||||
{
|
||||
/* Break out with start set to the first character of the token */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Find the terminating character after the token on the command line. The
|
||||
* terminating character is either (1) the matching quotation mark, or (2)
|
||||
* any whitespace.
|
||||
*/
|
||||
|
||||
for (endp1 = start; *endp1; endp1++)
|
||||
{
|
||||
/* Did the token begin with a quotation mark? */
|
||||
|
||||
if (quoted)
|
||||
{
|
||||
/* Yes.. then only the matching quotation mark (or end of string)
|
||||
* terminates
|
||||
*/
|
||||
|
||||
if (*endp1 == '"')
|
||||
{
|
||||
/* Break out... endp1 points to closing quotation mark */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* No.. any whitespace (or end of string) terminates */
|
||||
|
||||
else if (isspace(*endp1))
|
||||
{
|
||||
/* Break out... endp1 points to first while space encountered */
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Replace terminating character with a NUL terminator */
|
||||
|
||||
*endp1 = '\0';
|
||||
|
||||
/* Copied the token into the buffer */
|
||||
|
||||
strncpy(buffer, start, buflen);
|
||||
}
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: nsh_telnetlogin
|
||||
****************************************************************************/
|
||||
|
||||
int nsh_telnetlogin(FAR struct console_stdio_s *pstate)
|
||||
{
|
||||
char username[16];
|
||||
char password[16];
|
||||
#ifdef CONFIG_FSUTILS_PASSWD
|
||||
int ret;
|
||||
#endif
|
||||
int i;
|
||||
|
||||
/* Present the NSH Telnet greeting */
|
||||
|
||||
fputs(g_telnetgreeting, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
|
||||
/* Loop for the configured number of retries */
|
||||
|
||||
for (i = 0; i < CONFIG_NSH_LOGIN_FAILCOUNT; i++)
|
||||
{
|
||||
/* Ask for the login username */
|
||||
|
||||
fputs(g_userprompt, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
|
||||
username[0] = '\0';
|
||||
if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, INSTREAM(pstate)) != NULL)
|
||||
{
|
||||
/* Parse out the username */
|
||||
|
||||
nsh_telnettoken(pstate, username, sizeof(username));
|
||||
}
|
||||
|
||||
/* Ask for the login password */
|
||||
|
||||
fputs(g_passwordprompt, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
nsh_telnetecho(pstate, TELNET_NOTUSE_ECHO);
|
||||
|
||||
password[0] = '\0';
|
||||
if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, INSTREAM(pstate)) != NULL)
|
||||
{
|
||||
/* Parse out the password */
|
||||
|
||||
nsh_telnettoken(pstate, password, sizeof(password));
|
||||
|
||||
/* Verify the username and password */
|
||||
|
||||
#ifdef CONFIG_FSUTILS_PASSWD
|
||||
ret = passwd_verify(username, password);
|
||||
if (PASSWORD_VERIFY_MATCH(ret))
|
||||
#else
|
||||
if (strcmp(password, CONFIG_NSH_LOGIN_PASSWORD) == 0 &&
|
||||
strcmp(username, CONFIG_NSH_LOGIN_USERNAME) == 0)
|
||||
#endif
|
||||
{
|
||||
fputs(g_loginsuccess, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
nsh_telnetecho(pstate, TELNET_USE_ECHO);
|
||||
return OK;
|
||||
}
|
||||
else
|
||||
{
|
||||
fputs(g_badcredentials, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
}
|
||||
}
|
||||
|
||||
nsh_telnetecho(pstate, TELNET_USE_ECHO);
|
||||
}
|
||||
|
||||
/* Too many failed login attempts */
|
||||
|
||||
fputs(g_loginfailure, pstate->cn_outstream);
|
||||
fflush(pstate->cn_outstream);
|
||||
return -1;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_NSH_TELNET_LOGIN */
|
||||
Loading…
Reference in New Issue
Block a user