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samba-mirror/source3/utils/testparm.c

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/*
Unix SMB/CIFS implementation.
Test validity of smb.conf
Copyright (C) Karl Auer 1993, 1994-1998
Extensively modified by Andrew Tridgell, 1995
Converted to popt by Jelmer Vernooij (jelmer@nl.linux.org), 2002
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/>.
*/
/*
* Testbed for loadparm.c/params.c
*
* This module simply loads a specified configuration file and
* if successful, dumps it's contents to stdout. Note that the
* operation is performed with DEBUGLEVEL at 3.
*
* Useful for a quick 'syntax check' of a configuration file.
*
*/
#include "includes.h"
#include "system/filesys.h"
#include "popt_common.h"
#include "lib/param/loadparm.h"
/*******************************************************************
Check if a directory exists.
********************************************************************/
static bool directory_exist_stat(const char *dname,SMB_STRUCT_STAT *st)
{
SMB_STRUCT_STAT st2;
bool ret;
if (!st)
st = &st2;
if (sys_stat(dname, st, false) != 0)
return(False);
ret = S_ISDIR(st->st_ex_mode);
if(!ret)
errno = ENOTDIR;
return ret;
}
/***********************************************
Here we do a set of 'hard coded' checks for bad
configuration settings.
************************************************/
static int do_global_checks(void)
{
int ret = 0;
SMB_STRUCT_STAT st;
const char *socket_options;
if (lp_security() >= SEC_DOMAIN && !lp_encrypted_passwords()) {
fprintf(stderr, "ERROR: in 'security=domain' mode the "
"'encrypt passwords' parameter must always be "
"set to 'true'.\n\n");
ret = 1;
}
if (lp_we_are_a_wins_server() && lp_wins_server_list()) {
fprintf(stderr, "ERROR: both 'wins support = true' and "
"'wins server = <server list>' cannot be set in "
"the smb.conf file. nmbd will abort with this "
"setting.\n\n");
ret = 1;
}
if (strequal(lp_workgroup(), lp_netbios_name())) {
fprintf(stderr, "WARNING: 'workgroup' and 'netbios name' "
"must differ.\n\n");
}
if (!directory_exist_stat(lp_lockdir(), &st)) {
fprintf(stderr, "ERROR: lock directory %s does not exist\n\n",
lp_lockdir());
ret = 1;
} else if ((st.st_ex_mode & 0777) != 0755) {
fprintf(stderr, "WARNING: lock directory %s should have "
"permissions 0755 for browsing to work\n\n",
lp_lockdir());
}
if (!directory_exist_stat(lp_statedir(), &st)) {
fprintf(stderr, "ERROR: state directory %s does not exist\n\n",
lp_statedir());
ret = 1;
} else if ((st.st_ex_mode & 0777) != 0755) {
fprintf(stderr, "WARNING: state directory %s should have "
"permissions 0755 for browsing to work\n\n",
lp_statedir());
}
if (!directory_exist_stat(lp_cachedir(), &st)) {
fprintf(stderr, "ERROR: cache directory %s does not exist\n\n",
lp_cachedir());
ret = 1;
} else if ((st.st_ex_mode & 0777) != 0755) {
fprintf(stderr, "WARNING: cache directory %s should have "
"permissions 0755 for browsing to work\n\n",
lp_cachedir());
}
if (!directory_exist_stat(lp_piddir(), &st)) {
fprintf(stderr, "ERROR: pid directory %s does not exist\n\n",
lp_piddir());
ret = 1;
}
if (lp_passdb_expand_explicit()) {
fprintf(stderr, "WARNING: passdb expand explicit = yes is "
"deprecated\n\n");
}
/*
* Socket options.
*/
socket_options = lp_socket_options();
if (socket_options != NULL &&
(strstr(socket_options, "SO_SNDBUF") ||
strstr(socket_options, "SO_RCVBUF") ||
strstr(socket_options, "SO_SNDLOWAT") ||
strstr(socket_options, "SO_RCVLOWAT")))
{
fprintf(stderr,
"WARNING: socket options = %s\n"
"This warning is printed because you set one of the\n"
"following options: SO_SNDBUF, SO_RCVBUF, SO_SNDLOWAT,\n"
"SO_RCVLOWAT\n"
"Modern server operating systems are tuned for\n"
"high network performance in the majority of situations;\n"
"when you set 'socket options' you are overriding those\n"
"settings.\n"
"Linux in particular has an auto-tuning mechanism for\n"
"buffer sizes (SO_SNDBUF, SO_RCVBUF) that will be\n"
"disabled if you specify a socket buffer size. This can\n"
"potentially cripple your TCP/IP stack.\n\n"
"Getting the 'socket options' correct can make a big\n"
"difference to your performance, but getting them wrong\n"
"can degrade it by just as much. As with any other low\n"
"level setting, if you must make changes to it, make\n "
"small changes and test the effect before making any\n"
"large changes.\n\n",
socket_options);
}
/*
* Password server sanity checks.
*/
if((lp_security() >= SEC_DOMAIN) && !*lp_passwordserver()) {
const char *sec_setting;
if(lp_security() == SEC_DOMAIN)
sec_setting = "domain";
else if(lp_security() == SEC_ADS)
sec_setting = "ads";
else
sec_setting = "";
fprintf(stderr, "ERROR: The setting 'security=%s' requires the "
"'password server' parameter be set to the "
"default value * or a valid password server.\n\n",
sec_setting );
ret = 1;
}
if((lp_security() >= SEC_DOMAIN) && (strcmp(lp_passwordserver(), "*") != 0)) {
const char *sec_setting;
if(lp_security() == SEC_DOMAIN)
sec_setting = "domain";
else if(lp_security() == SEC_ADS)
sec_setting = "ads";
else
sec_setting = "";
fprintf(stderr, "WARNING: The setting 'security=%s' should NOT "
"be combined with the 'password server' "
"parameter.\n"
"(by default Samba will discover the correct DC "
"to contact automatically).\n\n",
sec_setting );
}
/*
* Password chat sanity checks.
*/
if(lp_security() == SEC_USER && lp_unix_password_sync()) {
/*
* Check that we have a valid lp_passwd_program() if not using pam.
*/
#ifdef WITH_PAM
if (!lp_pam_password_change()) {
#endif
if((lp_passwd_program(talloc_tos()) == NULL) ||
(strlen(lp_passwd_program(talloc_tos())) == 0))
{
fprintf(stderr,
"ERROR: the 'unix password sync' "
"parameter is set and there is no valid "
"'passwd program' parameter.\n\n");
ret = 1;
} else {
const char *passwd_prog;
char *truncated_prog = NULL;
const char *p;
passwd_prog = lp_passwd_program(talloc_tos());
p = passwd_prog;
next_token_talloc(talloc_tos(),
&p,
&truncated_prog, NULL);
if (truncated_prog && access(truncated_prog, F_OK) == -1) {
fprintf(stderr,
"ERROR: the 'unix password sync' "
"parameter is set and the "
"'passwd program' (%s) cannot be "
"executed (error was %s).\n\n",
truncated_prog,
strerror(errno));
ret = 1;
}
}
#ifdef WITH_PAM
}
#endif
if(lp_passwd_chat(talloc_tos()) == NULL) {
fprintf(stderr,
"ERROR: the 'unix password sync' parameter is "
"set and there is no valid 'passwd chat' "
"parameter.\n\n");
ret = 1;
}
if ((lp_passwd_program(talloc_tos()) != NULL) &&
(strlen(lp_passwd_program(talloc_tos())) > 0))
{
/* check if there's a %u parameter present */
if(strstr_m(lp_passwd_program(talloc_tos()), "%u") == NULL) {
fprintf(stderr,
"ERROR: the 'passwd program' (%s) "
"requires a '%%u' parameter.\n\n",
lp_passwd_program(talloc_tos()));
ret = 1;
}
}
/*
* Check that we have a valid script and that it hasn't
* been written to expect the old password.
*/
if(lp_encrypted_passwords()) {
if(strstr_m( lp_passwd_chat(talloc_tos()), "%o")!=NULL) {
fprintf(stderr,
"ERROR: the 'passwd chat' script [%s] "
"expects to use the old plaintext "
"password via the %%o substitution. With "
"encrypted passwords this is not "
"possible.\n\n",
lp_passwd_chat(talloc_tos()) );
ret = 1;
}
}
}
if (strlen(lp_winbind_separator()) != 1) {
fprintf(stderr, "ERROR: the 'winbind separator' parameter must "
"be a single character.\n\n");
ret = 1;
}
if (*lp_winbind_separator() == '+') {
fprintf(stderr, "'winbind separator = +' might cause problems "
"with group membership.\n\n");
}
if (lp_algorithmic_rid_base() < BASE_RID) {
/* Try to prevent admin foot-shooting, we can't put algorithmic
rids below 1000, that's the 'well known RIDs' on NT */
fprintf(stderr, "'algorithmic rid base' must be equal to or "
"above %lu\n\n", BASE_RID);
}
if (lp_algorithmic_rid_base() & 1) {
fprintf(stderr, "'algorithmic rid base' must be even.\n\n");
}
#ifndef HAVE_DLOPEN
if (lp_preload_modules()) {
fprintf(stderr, "WARNING: 'preload modules = ' set while loading "
"plugins not supported.\n\n");
}
#endif
if (!lp_passdb_backend()) {
fprintf(stderr, "ERROR: passdb backend must have a value or be "
"left out\n\n");
}
if (lp_os_level() > 255) {
fprintf(stderr, "WARNING: Maximum value for 'os level' is "
"255!\n\n");
}
if (strequal(lp_dos_charset(), "UTF8") || strequal(lp_dos_charset(), "UTF-8")) {
fprintf(stderr, "ERROR: 'dos charset' must not be UTF8\n\n");
ret = 1;
}
return ret;
}
/**
* per-share logic tests
*/
static void do_per_share_checks(int s)
{
const char **deny_list = lp_hostsdeny(s);
const char **allow_list = lp_hostsallow(s);
int i;
if(deny_list) {
for (i=0; deny_list[i]; i++) {
char *hasstar = strchr_m(deny_list[i], '*');
char *hasquery = strchr_m(deny_list[i], '?');
if(hasstar || hasquery) {
fprintf(stderr,
"Invalid character %c in hosts deny list "
"(%s) for service %s.\n\n",
hasstar ? *hasstar : *hasquery,
deny_list[i],
lp_servicename(talloc_tos(), s));
}
}
}
if(allow_list) {
for (i=0; allow_list[i]; i++) {
char *hasstar = strchr_m(allow_list[i], '*');
char *hasquery = strchr_m(allow_list[i], '?');
if(hasstar || hasquery) {
fprintf(stderr,
"Invalid character %c in hosts allow "
"list (%s) for service %s.\n\n",
hasstar ? *hasstar : *hasquery,
allow_list[i],
lp_servicename(talloc_tos(), s));
}
}
}
if(lp_level2_oplocks(s) && !lp_oplocks(s)) {
fprintf(stderr, "Invalid combination of parameters for service "
"%s. Level II oplocks can only be set if oplocks "
"are also set.\n\n",
lp_servicename(talloc_tos(), s));
}
if (!lp_store_dos_attributes(s) && lp_map_hidden(s)
&& !(lp_create_mask(s) & S_IXOTH))
{
fprintf(stderr,
"Invalid combination of parameters for service %s. Map "
"hidden can only work if create mask includes octal "
"01 (S_IXOTH).\n\n",
lp_servicename(talloc_tos(), s));
}
if (!lp_store_dos_attributes(s) && lp_map_hidden(s)
&& (lp_force_create_mode(s) & S_IXOTH))
{
fprintf(stderr,
"Invalid combination of parameters for service "
"%s. Map hidden can only work if force create mode "
"excludes octal 01 (S_IXOTH).\n\n",
lp_servicename(talloc_tos(), s));
}
if (!lp_store_dos_attributes(s) && lp_map_system(s)
&& !(lp_create_mask(s) & S_IXGRP))
{
fprintf(stderr,
"Invalid combination of parameters for service "
"%s. Map system can only work if create mask includes "
"octal 010 (S_IXGRP).\n\n",
lp_servicename(talloc_tos(), s));
}
if (!lp_store_dos_attributes(s) && lp_map_system(s)
&& (lp_force_create_mode(s) & S_IXGRP))
{
fprintf(stderr,
"Invalid combination of parameters for service "
"%s. Map system can only work if force create mode "
"excludes octal 010 (S_IXGRP).\n\n",
lp_servicename(talloc_tos(), s));
}
if (lp_printing(s) == PRINT_CUPS && *(lp_printcommand(talloc_tos(), s)) != '\0') {
fprintf(stderr,
"Warning: Service %s defines a print command, but "
"parameter is ignored when using CUPS libraries.\n\n",
lp_servicename(talloc_tos(), s));
}
}
int main(int argc, const char *argv[])
{
const char *config_file = get_dyn_CONFIGFILE();
int s;
static int silent_mode = False;
static int show_all_parameters = False;
int ret = 0;
poptContext pc;
static char *parameter_name = NULL;
static const char *section_name = NULL;
const char *cname;
const char *caddr;
static int show_defaults;
static int skip_logic_checks = 0;
struct poptOption long_options[] = {
POPT_AUTOHELP
{"suppress-prompt", 's', POPT_ARG_VAL, &silent_mode, 1, "Suppress prompt for enter"},
{"verbose", 'v', POPT_ARG_NONE, &show_defaults, 1, "Show default options too"},
{"skip-logic-checks", 'l', POPT_ARG_NONE, &skip_logic_checks, 1, "Skip the global checks"},
{"show-all-parameters", '\0', POPT_ARG_VAL, &show_all_parameters, True, "Show the parameters, type, possible values" },
{"parameter-name", '\0', POPT_ARG_STRING, &parameter_name, 0, "Limit testparm to a named parameter" },
{"section-name", '\0', POPT_ARG_STRING, &section_name, 0, "Limit testparm to a named section" },
POPT_COMMON_VERSION
POPT_COMMON_DEBUGLEVEL
POPT_COMMON_OPTION
POPT_TABLEEND
};
TALLOC_CTX *frame = talloc_stackframe();
load_case_tables();
/*
* Set the default debug level to 2.
* Allow it to be overridden by the command line,
* not by smb.conf.
*/
lp_set_cmdline("log level", "2");
pc = poptGetContext(NULL, argc, argv, long_options,
POPT_CONTEXT_KEEP_FIRST);
poptSetOtherOptionHelp(pc, "[OPTION...] <config-file> [host-name] [host-ip]");
while(poptGetNextOpt(pc) != -1);
if (show_all_parameters) {
show_parameter_list();
exit(0);
}
setup_logging(poptGetArg(pc), DEBUG_STDERR);
if (poptPeekArg(pc))
config_file = poptGetArg(pc);
cname = poptGetArg(pc);
caddr = poptGetArg(pc);
poptFreeContext(pc);
if ( cname && ! caddr ) {
printf ( "ERROR: You must specify both a machine name and an IP address.\n" );
ret = 1;
goto done;
}
fprintf(stderr,"Load smb config files from %s\n",config_file);
if (!lp_load_with_registry_shares(config_file,False,True,False,True)) {
fprintf(stderr,"Error loading services.\n");
ret = 1;
goto done;
}
fprintf(stderr,"Loaded services file OK.\n");
if (skip_logic_checks == 0) {
ret = do_global_checks();
}
for (s=0;s<1000;s++) {
if (VALID_SNUM(s))
if (strlen(lp_servicename(talloc_tos(), s)) > 12) {
fprintf(stderr, "WARNING: You have some share names that are longer than 12 characters.\n" );
fprintf(stderr, "These may not be accessible to some older clients.\n" );
fprintf(stderr, "(Eg. Windows9x, WindowsMe, and smbclient prior to Samba 3.0.)\n" );
break;
}
}
for (s=0;s<1000;s++) {
if (VALID_SNUM(s) && (skip_logic_checks == 0)) {
do_per_share_checks(s);
}
}
if (!section_name && !parameter_name) {
fprintf(stderr,
"Server role: %s\n\n",
server_role_str(lp_server_role()));
}
if (!cname) {
if (!silent_mode) {
fprintf(stderr,"Press enter to see a dump of your service definitions\n");
fflush(stdout);
getc(stdin);
}
if (parameter_name || section_name) {
bool isGlobal = False;
s = GLOBAL_SECTION_SNUM;
if (!section_name) {
section_name = GLOBAL_NAME;
isGlobal = True;
} else if ((isGlobal=!strwicmp(section_name, GLOBAL_NAME)) == 0 &&
(s=lp_servicenumber(section_name)) == -1) {
fprintf(stderr,"Unknown section %s\n",
section_name);
ret = 1;
goto done;
}
if (parameter_name) {
if (!dump_a_parameter( s, parameter_name, stdout, isGlobal)) {
fprintf(stderr,"Parameter %s unknown for section %s\n",
parameter_name, section_name);
ret = 1;
goto done;
}
} else {
if (isGlobal == True)
lp_dump(stdout, show_defaults, 0);
else
lp_dump_one(stdout, show_defaults, s);
}
goto done;
}
lp_dump(stdout, show_defaults, lp_numservices());
}
if(cname && caddr){
/* this is totally ugly, a real `quick' hack */
for (s=0;s<1000;s++) {
if (VALID_SNUM(s)) {
if (allow_access(lp_hostsdeny(-1), lp_hostsallow(-1), cname, caddr)
&& allow_access(lp_hostsdeny(s), lp_hostsallow(s), cname, caddr)) {
fprintf(stderr,"Allow connection from %s (%s) to %s\n",
cname,caddr,lp_servicename(talloc_tos(), s));
} else {
fprintf(stderr,"Deny connection from %s (%s) to %s\n",
cname,caddr,lp_servicename(talloc_tos(), s));
}
}
}
}
done:
gfree_loadparm();
TALLOC_FREE(frame);
return ret;
}