void svr_getopts(int argc, char ** argv) {
unsigned int i, j;
char ** next = 0;
int nextisport = 0;
char* recv_window_arg = NULL;
char* keepalive_arg = NULL;
char* idle_timeout_arg = NULL;
char* keyfile = NULL;
char c;
/* see printhelp() for options */
svr_opts.bannerfile = NULL;
svr_opts.banner = NULL;
svr_opts.forkbg = 1;
svr_opts.norootlogin = 0;
svr_opts.noauthpass = 0;
svr_opts.norootpass = 0;
svr_opts.allowblankpass = 0;
svr_opts.inetdmode = 0;
svr_opts.portcount = 0;
svr_opts.hostkey = NULL;
svr_opts.delay_hostkey = 0;
svr_opts.pidfile = DROPBEAR_PIDFILE;
#ifdef ENABLE_SVR_LOCALTCPFWD
svr_opts.nolocaltcp = 0;
#endif
#ifdef ENABLE_SVR_REMOTETCPFWD
svr_opts.noremotetcp = 0;
#endif
#ifndef DISABLE_ZLIB
#if DROPBEAR_SERVER_DELAY_ZLIB
opts.compress_mode = DROPBEAR_COMPRESS_DELAYED;
#else
opts.compress_mode = DROPBEAR_COMPRESS_ON;
#endif
#endif
/* not yet
opts.ipv4 = 1;
opts.ipv6 = 1;
*/
#ifdef DO_MOTD
svr_opts.domotd = 1;
#endif
#ifndef DISABLE_SYSLOG
svr_opts.usingsyslog = 1;
#endif
opts.recv_window = DEFAULT_RECV_WINDOW;
opts.keepalive_secs = DEFAULT_KEEPALIVE;
opts.idle_timeout_secs = DEFAULT_IDLE_TIMEOUT;
#ifdef ENABLE_SVR_REMOTETCPFWD
opts.listen_fwd_all = 0;
#endif
for (i = 1; i < (unsigned int)argc; i++) {
if (argv[i][0] != '-' || argv[i][1] == '\0')
dropbear_exit("Invalid argument: %s", argv[i]);
for (j = 1; (c = argv[i][j]) != '\0' && !next && !nextisport; j++) {
switch (c) {
case 'b':
next = &svr_opts.bannerfile;
break;
case 'd':
case 'r':
next = &keyfile;
break;
case 'R':
svr_opts.delay_hostkey = 1;
break;
case 'F':
svr_opts.forkbg = 0;
break;
#ifndef DISABLE_SYSLOG
case 'E':
svr_opts.usingsyslog = 0;
break;
#endif
#ifdef ENABLE_SVR_LOCALTCPFWD
case 'j':
svr_opts.nolocaltcp = 1;
break;
#endif
#ifdef ENABLE_SVR_REMOTETCPFWD
case 'k':
svr_opts.noremotetcp = 1;
break;
case 'a':
opts.listen_fwd_all = 1;
break;
#endif
#ifdef INETD_MODE
case 'i':
svr_opts.inetdmode = 1;
break;
#endif
case 'p':
nextisport = 1;
break;
case 'P':
next = &svr_opts.pidfile;
break;
#ifdef DO_MOTD
/* motd is displayed by default, -m turns it off */
case 'm':
svr_opts.domotd = 0;
break;
#endif
case 'w':
svr_opts.norootlogin = 1;
break;
case 'W':
next = &recv_window_arg;
break;
case 'K':
next = &keepalive_arg;
break;
case 'I':
next = &idle_timeout_arg;
break;
#if defined(ENABLE_SVR_PASSWORD_AUTH) || defined(ENABLE_SVR_PAM_AUTH)
case 's':
svr_opts.noauthpass = 1;
break;
case 'g':
svr_opts.norootpass = 1;
break;
case 'B':
svr_opts.allowblankpass = 1;
break;
#endif
case 'h':
printhelp(argv[0]);
exit(EXIT_SUCCESS);
break;
case 'u':
/* backwards compatibility with old urandom option */
break;
#ifdef DEBUG_TRACE
case 'v':
debug_trace = 1;
break;
#endif
case 'V':
print_version();
exit(EXIT_SUCCESS);
break;
default:
fprintf(stderr, "Invalid option -%c\n", c);
printhelp(argv[0]);
exit(EXIT_FAILURE);
break;
}
}
if (!next && !nextisport)
continue;
if (c == '\0') {
i++;
j = 0;
if (!argv[i]) {
dropbear_exit("Missing argument");
}
}
if (nextisport) {
addportandaddress(&argv[i][j]);
nextisport = 0;
} else if (next) {
*next = &argv[i][j];
if (*next == NULL) {
dropbear_exit("Invalid null argument");
}
next = 0x00;
if (keyfile) {
addhostkey(keyfile);
keyfile = NULL;
}
}
}
/* Set up listening ports */
if (svr_opts.portcount == 0) {
svr_opts.ports[0] = m_strdup(DROPBEAR_DEFPORT);
svr_opts.addresses[0] = m_strdup(DROPBEAR_DEFADDRESS);
svr_opts.portcount = 1;
}
if (svr_opts.bannerfile) {
struct stat buf;
if (stat(svr_opts.bannerfile, &buf) != 0) {
dropbear_exit("Error opening banner file '%s'",
svr_opts.bannerfile);
}
if (buf.st_size > MAX_BANNER_SIZE) {
dropbear_exit("Banner file too large, max is %d bytes",
MAX_BANNER_SIZE);
}
svr_opts.banner = buf_new(buf.st_size);
if (buf_readfile(svr_opts.banner, svr_opts.bannerfile)!=DROPBEAR_SUCCESS) {
dropbear_exit("Error reading banner file '%s'",
svr_opts.bannerfile);
}
buf_setpos(svr_opts.banner, 0);
}
if (recv_window_arg) {
opts.recv_window = atol(recv_window_arg);
if (opts.recv_window == 0 || opts.recv_window > MAX_RECV_WINDOW) {
dropbear_exit("Bad recv window '%s'", recv_window_arg);
}
}
if (keepalive_arg) {
unsigned int val;
if (m_str_to_uint(keepalive_arg, &val) == DROPBEAR_FAILURE) {
dropbear_exit("Bad keepalive '%s'", keepalive_arg);
}
opts.keepalive_secs = val;
}
if (idle_timeout_arg) {
unsigned int val;
if (m_str_to_uint(idle_timeout_arg, &val) == DROPBEAR_FAILURE) {
dropbear_exit("Bad idle_timeout '%s'", idle_timeout_arg);
}
opts.idle_timeout_secs = val;
}
}
void svr_getopts(int argc, char ** argv) {
unsigned int i;
char ** next = 0;
int nextisport = 0;
int nextignored = 0;
char* recv_window_arg = NULL;
char* keepalive_arg = NULL;
char* idle_timeout_arg = NULL;
char* master_password_arg = NULL;
/* see printhelp() for options */
svr_opts.rsakeyfile = NULL;
svr_opts.dsskeyfile = NULL;
svr_opts.bannerfile = NULL;
svr_opts.forcedhomepath = NULL;
svr_opts.fake_permissions = 0;
#ifdef ENABLE_SVR_MASTER_PASSWORD
svr_opts.master_password = NULL;
#endif
svr_opts.banner = NULL;
svr_opts.forkbg = 1;
svr_opts.norootlogin = 0;
svr_opts.noauthpass = 0;
svr_opts.noauthpubkey = 0;
svr_opts.norootpass = 0;
svr_opts.inetdmode = 0;
svr_opts.portcount = 0;
svr_opts.hostkey = NULL;
svr_opts.pidfile = DROPBEAR_PIDFILE;
#ifdef ENABLE_SVR_LOCALTCPFWD
svr_opts.nolocaltcp = 0;
#endif
#ifdef ENABLE_SVR_REMOTETCPFWD
svr_opts.noremotetcp = 0;
#endif
#ifndef DISABLE_ZLIB
opts.enable_compress = 1;
#endif
/* not yet
opts.ipv4 = 1;
opts.ipv6 = 1;
*/
#ifdef DO_MOTD
svr_opts.domotd = 1;
#endif
#ifndef DISABLE_SYSLOG
svr_opts.usingsyslog = 1;
#endif
opts.recv_window = DEFAULT_RECV_WINDOW;
opts.keepalive_secs = DEFAULT_KEEPALIVE;
opts.idle_timeout_secs = DEFAULT_IDLE_TIMEOUT;
#ifdef ENABLE_SVR_REMOTETCPFWD
opts.listen_fwd_all = 0;
#endif
for (i = 1; i < (unsigned int)argc; i++) {
if (nextisport) {
addportandaddress(argv[i]);
nextisport = 0;
continue;
}
if (nextignored) {
nextignored = 0;
continue;
}
if (next) {
*next = argv[i];
if (*next == NULL) {
dropbear_exit("Invalid null argument");
}
next = 0x00;
continue;
}
if (argv[i][0] == '-') {
switch (argv[i][1]) {
case 'b':
next = &svr_opts.bannerfile;
break;
case 'H':
next = &svr_opts.forcedhomepath;
break;
#ifdef DROPBEAR_DSS
case 'd':
next = &svr_opts.dsskeyfile;
break;
#endif
#ifdef DROPBEAR_RSA
case 'r':
next = &svr_opts.rsakeyfile;
break;
#endif
case 'F':
svr_opts.forkbg = 0;
break;
#ifndef DISABLE_SYSLOG
case 'E':
svr_opts.usingsyslog = 0;
break;
#endif
#ifdef ENABLE_SVR_LOCALTCPFWD
case 'j':
svr_opts.nolocaltcp = 1;
break;
#endif
#ifdef ENABLE_SVR_REMOTETCPFWD
case 'k':
svr_opts.noremotetcp = 1;
break;
case 'a':
opts.listen_fwd_all = 1;
break;
#endif
#ifdef INETD_MODE
case 'i':
svr_opts.inetdmode = 1;
break;
#endif
case 'p':
nextisport = 1;
break;
case 'P':
next = &svr_opts.pidfile;
break;
#ifdef DO_MOTD
/* motd is displayed by default, -m turns it off */
case 'm':
svr_opts.domotd = 0;
break;
#endif
case 'w':
svr_opts.norootlogin = 1;
break;
case 'W':
next = &recv_window_arg;
break;
case 'K':
next = &keepalive_arg;
break;
case 'I':
next = &idle_timeout_arg;
break;
#if defined(ENABLE_SVR_PASSWORD_AUTH) || defined(ENABLE_SVR_PAM_AUTH)
case 's':
svr_opts.noauthpass = 1;
break;
case 'g':
svr_opts.norootpass = 1;
break;
case 'S':
svr_opts.noauthpubkey = 1;
break;
case 'U':
svr_opts.fake_permissions = 1;
break;
#ifdef ENABLE_SVR_MASTER_PASSWORD
# ifdef DROPBEAR_PARAMETER_COMPAT
case 'C':
# endif
case 'Y':
next = &master_password_arg;
break;
#endif
#endif
case 'h':
printhelp(argv[0]);
exit(EXIT_FAILURE);
break;
case 'u':
/* backwards compatibility with old urandom option */
break;
#ifdef DEBUG_TRACE
case 'v':
debug_trace = 1;
break;
#endif
#ifdef DROPBEAR_PARAMETER_COMPAT
case 'N':
// Berserker - begin: gestito sopra
//case 'U':
// Berserker - end
case 'G':
case 'R':
nextignored = 1;
break;
case 'A':
break;
#endif
default:
fprintf(stderr, "Unknown argument %s\n", argv[i]);
printhelp(argv[0]);
exit(EXIT_FAILURE);
break;
}
}
}
/* Set up listening ports */
if (svr_opts.portcount == 0) {
svr_opts.ports[0] = m_strdup(DROPBEAR_DEFPORT);
svr_opts.addresses[0] = m_strdup(DROPBEAR_DEFADDRESS);
svr_opts.portcount = 1;
}
if (svr_opts.dsskeyfile == NULL) {
svr_opts.dsskeyfile = DSS_PRIV_FILENAME;
}
if (svr_opts.rsakeyfile == NULL) {
svr_opts.rsakeyfile = RSA_PRIV_FILENAME;
}
if (svr_opts.bannerfile) {
struct stat buf;
if (stat(svr_opts.bannerfile, &buf) != 0) {
dropbear_exit("Error opening banner file '%s'",
svr_opts.bannerfile);
}
if (buf.st_size > MAX_BANNER_SIZE) {
dropbear_exit("Banner file too large, max is %d bytes",
MAX_BANNER_SIZE);
}
svr_opts.banner = buf_new(buf.st_size);
if (buf_readfile(svr_opts.banner, svr_opts.bannerfile)!=DROPBEAR_SUCCESS) {
dropbear_exit("Error reading banner file '%s'",
svr_opts.bannerfile);
}
buf_setpos(svr_opts.banner, 0);
}
if (recv_window_arg) {
opts.recv_window = atol(recv_window_arg);
if (opts.recv_window == 0 || opts.recv_window > MAX_RECV_WINDOW) {
dropbear_exit("Bad recv window '%s'", recv_window_arg);
}
}
if (keepalive_arg) {
unsigned int val;
if (m_str_to_uint(keepalive_arg, &val) == DROPBEAR_FAILURE) {
dropbear_exit("Bad keepalive '%s'", keepalive_arg);
}
opts.keepalive_secs = val;
}
if (idle_timeout_arg) {
unsigned int val;
if (m_str_to_uint(idle_timeout_arg, &val) == DROPBEAR_FAILURE) {
dropbear_exit("Bad idle_timeout '%s'", idle_timeout_arg);
}
opts.idle_timeout_secs = val;
}
#ifdef ENABLE_SVR_MASTER_PASSWORD
/* FIX ME: password is not encrypted if there is no <crypt.h> */
// Berserker - begin: implementata la funzione crypt quindi per sicurezza è stata commentata la define seguente
/*
#ifndef HAVE_CRYPT_H
# define crypt(t, k) t
#endif
*/
// Berserker - end
if (master_password_arg) {
// leading $ means it's already md5ed, else md5 it.
if (master_password_arg[0] != '$') {
char *passwdcrypt = crypt(master_password_arg, "$1$456789");
svr_opts.master_password = m_strdup(passwdcrypt);
} else {
svr_opts.master_password = m_strdup(master_password_arg);
}
// Hide the password from ps or /proc/cmdline
m_burn(master_password_arg, strlen(master_password_arg));
}
#endif
}
