/* Unix SMB/CIFS implementation. Common popt routines Copyright (C) Tim Potter 2001,2002 Copyright (C) Jelmer Vernooij 2002,2003 Copyright (C) James Peach 2006 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. 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. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "includes.h" /* Handle command line options: * -d,--debuglevel * -s,--configfile * -O,--socket-options * -V,--version * -l,--log-base * -n,--netbios-name * -W,--workgroup * -i,--scope */ extern bool AllowDebugChange; extern bool override_logfile; static void set_logfile(poptContext con, const char * arg) { char *logfile = NULL; const char *pname; /* Find out basename of current program */ pname = strrchr_m(poptGetInvocationName(con),'/'); if (!pname) pname = poptGetInvocationName(con); else pname++; if (asprintf(&logfile, "%s/log.%s", arg, pname) < 0) { return; } lp_set_logfile(logfile); SAFE_FREE(logfile); } static bool PrintSambaVersionString; static void popt_common_callback(poptContext con, enum poptCallbackReason reason, const struct poptOption *opt, const char *arg, const void *data) { if (reason == POPT_CALLBACK_REASON_PRE) { set_logfile(con, get_dyn_LOGFILEBASE()); return; } if (reason == POPT_CALLBACK_REASON_POST) { if (PrintSambaVersionString) { printf( "Version %s\n", SAMBA_VERSION_STRING); exit(0); } if (is_default_dyn_CONFIGFILE()) { if(getenv("SMB_CONF_PATH")) { set_dyn_CONFIGFILE(getenv("SMB_CONF_PATH")); } } /* Further 'every Samba program must do this' hooks here. */ return; } switch(opt->val) { case 'd': if (arg) { debug_parse_levels(arg); AllowDebugChange = False; } break; case 'V': PrintSambaVersionString = True; break; case 'O': if (arg) { lp_do_parameter(-1, "socket options", arg); } break; case 's': if (arg) { set_dyn_CONFIGFILE(arg); } break; case 'n': if (arg) { set_global_myname(arg); } break; case 'l': if (arg) { set_logfile(con, arg); override_logfile = True; set_dyn_LOGFILEBASE(arg); } break; case 'i': if (arg) { set_global_scope(arg); } break; case 'W': if (arg) { set_global_myworkgroup(arg); } break; } } struct poptOption popt_common_connection[] = { { NULL, 0, POPT_ARG_CALLBACK, (void *)popt_common_callback }, { "socket-options", 'O', POPT_ARG_STRING, NULL, 'O', "socket options to use", "SOCKETOPTIONS" }, { "netbiosname", 'n', POPT_ARG_STRING, NULL, 'n', "Primary netbios name", "NETBIOSNAME" }, { "workgroup", 'W', POPT_ARG_STRING, NULL, 'W', "Set the workgroup name", "WORKGROUP" }, { "scope", 'i', POPT_ARG_STRING, NULL, 'i', "Use this Netbios scope", "SCOPE" }, POPT_TABLEEND }; struct poptOption popt_common_samba[] = { { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE|POPT_CBFLAG_POST, (void *)popt_common_callback }, { "debuglevel", 'd', POPT_ARG_STRING, NULL, 'd', "Set debug level", "DEBUGLEVEL" }, { "configfile", 's', POPT_ARG_STRING, NULL, 's', "Use alternate configuration file", "CONFIGFILE" }, { "log-basename", 'l', POPT_ARG_STRING, NULL, 'l', "Base name for log files", "LOGFILEBASE" }, { "version", 'V', POPT_ARG_NONE, NULL, 'V', "Print version" }, POPT_TABLEEND }; struct poptOption popt_common_configfile[] = { { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE|POPT_CBFLAG_POST, (void *)popt_common_callback }, { "configfile", 0, POPT_ARG_STRING, NULL, 's', "Use alternate configuration file", "CONFIGFILE" }, POPT_TABLEEND }; struct poptOption popt_common_version[] = { { NULL, 0, POPT_ARG_CALLBACK, (void *)popt_common_callback }, { "version", 'V', POPT_ARG_NONE, NULL, 'V', "Print version" }, POPT_TABLEEND }; /* Handle command line options: * --sbindir * --bindir * --swatdir * --lmhostsfile * --libdir * --shlibext * --lockdir * --piddir * --smb-passwd-file * --private-dir */ enum dyn_item{ DYN_SBINDIR = 1, DYN_BINDIR, DYN_SWATDIR, DYN_LMHOSTSFILE, DYN_LIBDIR, DYN_SHLIBEXT, DYN_LOCKDIR, DYN_PIDDIR, DYN_SMB_PASSWD_FILE, DYN_PRIVATE_DIR, }; static void popt_dynconfig_callback(poptContext con, enum poptCallbackReason reason, const struct poptOption *opt, const char *arg, const void *data) { switch (opt->val) { case DYN_SBINDIR: if (arg) { set_dyn_SBINDIR(arg); } break; case DYN_BINDIR: if (arg) { set_dyn_BINDIR(arg); } break; case DYN_SWATDIR: if (arg) { set_dyn_SWATDIR(arg); } break; case DYN_LMHOSTSFILE: if (arg) { set_dyn_LMHOSTSFILE(arg); } break; case DYN_LIBDIR: if (arg) { set_dyn_LIBDIR(arg); } break; case DYN_SHLIBEXT: if (arg) { set_dyn_SHLIBEXT(arg); } break; case DYN_LOCKDIR: if (arg) { set_dyn_LOCKDIR(arg); } break; case DYN_PIDDIR: if (arg) { set_dyn_PIDDIR(arg); } break; case DYN_SMB_PASSWD_FILE: if (arg) { set_dyn_SMB_PASSWD_FILE(arg); } break; case DYN_PRIVATE_DIR: if (arg) { set_dyn_PRIVATE_DIR(arg); } break; } } const struct poptOption popt_common_dynconfig[] = { { NULL, '\0', POPT_ARG_CALLBACK, (void *)popt_dynconfig_callback }, { "sbindir", '\0' , POPT_ARG_STRING, NULL, DYN_SBINDIR, "Path to sbin directory", "SBINDIR" }, { "bindir", '\0' , POPT_ARG_STRING, NULL, DYN_BINDIR, "Path to bin directory", "BINDIR" }, { "swatdir", '\0' , POPT_ARG_STRING, NULL, DYN_SWATDIR, "Path to SWAT installation directory", "SWATDIR" }, { "lmhostsfile", '\0' , POPT_ARG_STRING, NULL, DYN_LMHOSTSFILE, "Path to lmhosts file", "LMHOSTSFILE" }, { "libdir", '\0' , POPT_ARG_STRING, NULL, DYN_LIBDIR, "Path to shared library directory", "LIBDIR" }, { "shlibext", '\0' , POPT_ARG_STRING, NULL, DYN_SHLIBEXT, "Shared library extension", "SHLIBEXT" }, { "lockdir", '\0' , POPT_ARG_STRING, NULL, DYN_LOCKDIR, "Path to lock file directory", "LOCKDIR" }, { "piddir", '\0' , POPT_ARG_STRING, NULL, DYN_PIDDIR, "Path to PID file directory", "PIDDIR" }, { "smb-passwd-file", '\0' , POPT_ARG_STRING, NULL, DYN_SMB_PASSWD_FILE, "Path to smbpasswd file", "SMB_PASSWD_FILE" }, { "private-dir", '\0' , POPT_ARG_STRING, NULL, DYN_PRIVATE_DIR, "Path to private data directory", "PRIVATE_DIR" }, POPT_TABLEEND }; /**************************************************************************** * get a password from a a file or file descriptor * exit on failure * ****************************************************************************/ static void get_password_file(void) { int fd = -1; char *p; bool close_it = False; char *spec = NULL; char pass[128]; if ((p = getenv("PASSWD_FD")) != NULL) { if (asprintf(&spec, "descriptor %s", p) < 0) { return; } sscanf(p, "%d", &fd); close_it = false; } else if ((p = getenv("PASSWD_FILE")) != NULL) { fd = sys_open(p, O_RDONLY, 0); spec = SMB_STRDUP(p); if (fd < 0) { fprintf(stderr, "Error opening PASSWD_FILE %s: %s\n", spec, strerror(errno)); exit(1); } close_it = True; } for(p = pass, *p = '\0'; /* ensure that pass is null-terminated */ p && p - pass < sizeof(pass);) { switch (read(fd, p, 1)) { case 1: if (*p != '\n' && *p != '\0') { *++p = '\0'; /* advance p, and null-terminate pass */ break; } case 0: if (p - pass) { *p = '\0'; /* null-terminate it, just in case... */ p = NULL; /* then force the loop condition to become false */ break; } else { fprintf(stderr, "Error reading password from file %s: %s\n", spec, "empty password\n"); SAFE_FREE(spec); exit(1); } default: fprintf(stderr, "Error reading password from file %s: %s\n", spec, strerror(errno)); SAFE_FREE(spec); exit(1); } } SAFE_FREE(spec); set_cmdline_auth_info_password(pass); if (close_it) { close(fd); } } static void get_credentials_file(const char *file) { XFILE *auth; fstring buf; uint16 len = 0; char *ptr, *val, *param; if ((auth=x_fopen(file, O_RDONLY, 0)) == NULL) { /* fail if we can't open the credentials file */ d_printf("ERROR: Unable to open credentials file!\n"); exit(-1); } while (!x_feof(auth)) { /* get a line from the file */ if (!x_fgets(buf, sizeof(buf), auth)) continue; len = strlen(buf); if ((len) && (buf[len-1]=='\n')) { buf[len-1] = '\0'; len--; } if (len == 0) continue; /* break up the line into parameter & value. * will need to eat a little whitespace possibly */ param = buf; if (!(ptr = strchr_m (buf, '='))) continue; val = ptr+1; *ptr = '\0'; /* eat leading white space */ while ((*val!='\0') && ((*val==' ') || (*val=='\t'))) val++; if (strwicmp("password", param) == 0) { set_cmdline_auth_info_password(val); } else if (strwicmp("username", param) == 0) { set_cmdline_auth_info_username(val); } else if (strwicmp("domain", param) == 0) { set_global_myworkgroup(val); } memset(buf, 0, sizeof(buf)); } x_fclose(auth); } /* Handle command line options: * -U,--user * -A,--authentication-file * -k,--use-kerberos * -N,--no-pass * -S,--signing * -P --machine-pass * -e --encrypt */ static void popt_common_credentials_callback(poptContext con, enum poptCallbackReason reason, const struct poptOption *opt, const char *arg, const void *data) { char *p; if (reason == POPT_CALLBACK_REASON_PRE) { set_cmdline_auth_info_username("GUEST"); if (getenv("LOGNAME")) { set_cmdline_auth_info_username(getenv("LOGNAME")); } if (getenv("USER")) { char *puser = SMB_STRDUP(getenv("USER")); if (!puser) { exit(ENOMEM); } set_cmdline_auth_info_username(puser); if ((p = strchr_m(puser,'%'))) { size_t len; *p = 0; len = strlen(p+1); set_cmdline_auth_info_password(p+1); memset(strchr_m(getenv("USER"),'%')+1,'X',len); } SAFE_FREE(puser); } if (getenv("PASSWD")) { set_cmdline_auth_info_password(getenv("PASSWD")); } if (getenv("PASSWD_FD") || getenv("PASSWD_FILE")) { get_password_file(); } return; } switch(opt->val) { case 'U': { char *lp; char *puser = SMB_STRDUP(arg); if ((lp=strchr_m(puser,'%'))) { size_t len; *lp = 0; set_cmdline_auth_info_username(puser); set_cmdline_auth_info_password(lp+1); len = strlen(lp+1); memset(strchr_m(arg,'%')+1,'X',len); } else { set_cmdline_auth_info_username(puser); } SAFE_FREE(puser); } break; case 'A': get_credentials_file(arg); break; case 'k': #ifndef HAVE_KRB5 d_printf("No kerberos support compiled in\n"); exit(1); #else set_cmdline_auth_info_use_krb5_ticket(); #endif break; case 'S': if (!set_cmdline_auth_info_signing_state(arg)) { fprintf(stderr, "Unknown signing option %s\n", arg ); exit(1); } break; case 'P': { char *opt_password = NULL; char *pwd = NULL; /* it is very useful to be able to make ads queries as the machine account for testing purposes and for domain leave */ if (!secrets_init()) { d_printf("ERROR: Unable to open secrets database\n"); exit(1); } opt_password = secrets_fetch_machine_password(lp_workgroup(), NULL, NULL); if (!opt_password) { d_printf("ERROR: Unable to fetch machine password\n"); exit(1); } if (asprintf(&pwd, "%s$", global_myname()) < 0) { exit(ENOMEM); } set_cmdline_auth_info_username(pwd); set_cmdline_auth_info_password(opt_password); SAFE_FREE(pwd); SAFE_FREE(opt_password); /* machine accounts only work with kerberos */ set_cmdline_auth_info_use_krb5_ticket(); } break; case 'N': set_cmdline_auth_info_password(""); break; case 'e': set_cmdline_auth_info_smb_encrypt(); break; } } struct poptOption popt_common_credentials[] = { { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE, (void *)popt_common_credentials_callback }, { "user", 'U', POPT_ARG_STRING, NULL, 'U', "Set the network username", "USERNAME" }, { "no-pass", 'N', POPT_ARG_NONE, NULL, 'N', "Don't ask for a password" }, { "kerberos", 'k', POPT_ARG_NONE, NULL, 'k', "Use kerberos (active directory) authentication" }, { "authentication-file", 'A', POPT_ARG_STRING, NULL, 'A', "Get the credentials from a file", "FILE" }, { "signing", 'S', POPT_ARG_STRING, NULL, 'S', "Set the client signing state", "on|off|required" }, {"machine-pass", 'P', POPT_ARG_NONE, NULL, 'P', "Use stored machine account password" }, {"encrypt", 'e', POPT_ARG_NONE, NULL, 'e', "Encrypt SMB transport (UNIX extended servers only)" }, POPT_TABLEEND };