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/*
* Common PDB SQL backend functions
* Copyright (C) Jelmer Vernooij 2003-2004
*
* 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 2 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, write to the Free Software Foundation, Inc., 675
* Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#define CONFIG_TABLE_DEFAULT "user"
#define CONFIG_LOGON_TIME_DEFAULT "logon_time"
#define CONFIG_LOGOFF_TIME_DEFAULT "logoff_time"
#define CONFIG_KICKOFF_TIME_DEFAULT "kickoff_time"
#define CONFIG_PASS_LAST_SET_TIME_DEFAULT "pass_last_set_time"
#define CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT "pass_can_change_time"
#define CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT "pass_must_change_time"
#define CONFIG_USERNAME_DEFAULT "username"
#define CONFIG_DOMAIN_DEFAULT "domain"
#define CONFIG_NT_USERNAME_DEFAULT "nt_username"
#define CONFIG_FULLNAME_DEFAULT "nt_fullname"
#define CONFIG_HOME_DIR_DEFAULT "home_dir"
#define CONFIG_DIR_DRIVE_DEFAULT "dir_drive"
#define CONFIG_LOGON_SCRIPT_DEFAULT "logon_script"
#define CONFIG_PROFILE_PATH_DEFAULT "profile_path"
#define CONFIG_ACCT_DESC_DEFAULT "acct_desc"
#define CONFIG_WORKSTATIONS_DEFAULT "workstations"
#define CONFIG_UNKNOWN_STR_DEFAULT "unknown_str"
#define CONFIG_MUNGED_DIAL_DEFAULT "munged_dial"
#define CONFIG_USER_SID_DEFAULT "user_sid"
#define CONFIG_GROUP_SID_DEFAULT "group_sid"
#define CONFIG_LM_PW_DEFAULT "lm_pw"
#define CONFIG_NT_PW_DEFAULT "nt_pw"
#define CONFIG_PLAIN_PW_DEFAULT "NULL"
#define CONFIG_ACCT_CTRL_DEFAULT "acct_ctrl"
#define CONFIG_LOGON_DIVS_DEFAULT "logon_divs"
#define CONFIG_HOURS_LEN_DEFAULT "hours_len"
#define CONFIG_BAD_PASSWORD_COUNT_DEFAULT "bad_password_count"
#define CONFIG_LOGON_COUNT_DEFAULT "logon_count"
#define CONFIG_UNKNOWN_6_DEFAULT "unknown_6"
#define CONFIG_LOGON_HOURS "logon_hours"
/* Used to construct insert and update queries */
typedef struct pdb_sql_query {
char update;
char *part1;
char *part2;
} pdb_sql_query;
static void pdb_sql_int_field(struct pdb_sql_query *q, const char *name, int value)
{
if (!name || strchr(name, '\''))
return; /* This field shouldn't be set by us */
if (q->update) {
q->part1 =
talloc_asprintf_append(q->part1,
"%s = %d,", name, value);
} else {
q->part1 =
talloc_asprintf_append(q->part1, "%s,", name);
q->part2 =
talloc_asprintf_append(q->part2, "%d,", value);
}
}
char *sql_escape_string(TALLOC_CTX *mem_ctx, const char *unesc)
{
char *esc = talloc_array(mem_ctx, char, strlen(unesc) * 2 + 3);
size_t pos_unesc = 0, pos_esc = 0;
for(pos_unesc = 0; unesc[pos_unesc]; pos_unesc++) {
switch(unesc[pos_unesc]) {
case '\\':
case '\'':
case '"':
esc[pos_esc] = '\\'; pos_esc++;
default:
esc[pos_esc] = unesc[pos_unesc]; pos_esc++;
break;
}
}
esc[pos_esc] = '\0';
return esc;
}
static NTSTATUS pdb_sql_string_field(struct pdb_sql_query *q,
const char *name, const char *value)
{
char *esc_value;
if (!name || !value || !strcmp(value, "") || strchr(name, '\''))
return NT_STATUS_INVALID_PARAMETER; /* This field shouldn't be set by module */
esc_value = sql_escape_string(q, value);
if (q->update) {
q->part1 =
talloc_asprintf_append(q->part1,
"%s = '%s',", name, esc_value);
} else {
q->part1 =
talloc_asprintf_append(q->part1, "%s,", name);
q->part2 =
talloc_asprintf_append(q->part2, "'%s',",
esc_value);
}
talloc_free(esc_value);
return NT_STATUS_OK;
}
#define config_value(data,name,default_value) \
lp_parm_const_string(GLOBAL_SECTION_SNUM, data, name, default_value)
static const char * config_value_write(const char *location, const char *name, const char *default_value)
{
char const *v = NULL;
char const *swrite = NULL;
v = lp_parm_const_string(GLOBAL_SECTION_SNUM, location, name, default_value);
if (!v)
return NULL;
swrite = strrchr(v, ':');
/* Default to the same field as read field */
if (!swrite) {
/* Updating NULL does not make much sense */
if (!strcmp(v, "NULL"))
return NULL;
return v;
}
swrite++;
/* If the field is 0 chars long, we shouldn't write to it */
if (!strlen(swrite) || !strcmp(swrite, "NULL"))
return NULL;
/* Otherwise, use the additionally specified */
return swrite;
}
static const char * config_value_read(const char *location, const char *name, const char *default_value)
{
char *v = NULL;
char *swrite;
v = lp_parm_talloc_string(GLOBAL_SECTION_SNUM, location, name, default_value);
if (!v)
return "NULL";
swrite = strrchr(v, ':');
/* If no write is specified, there are no problems */
if (!swrite) {
if (strlen(v) == 0)
return "NULL";
return (const char *)v;
}
/* Otherwise, we have to cut the ':write_part' */
*swrite = '\0';
if (strlen(v) == 0)
return "NULL";
return (const char *)v;
}
char *sql_account_query_select(TALLOC_CTX *mem_ctx, const char *data, BOOL update, enum sql_search_field field, const char *value)
{
const char *field_string;
char *query;
switch(field) {
case SQL_SEARCH_NONE:
field_string = "'1'";
value = "1";
break;
case SQL_SEARCH_USER_SID:
field_string = config_value_read(data, "user sid column",
CONFIG_USER_SID_DEFAULT);
break;
case SQL_SEARCH_USER_NAME:
field_string = config_value_read(data, "username column",
CONFIG_USERNAME_DEFAULT);
break;
default:
field_string = "unknown";
break;
}
query = talloc_asprintf(mem_ctx,
"SELECT %s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s FROM %s WHERE %s = '%s'",
config_value_read(data, "logon time column",
CONFIG_LOGON_TIME_DEFAULT),
config_value_read(data, "logoff time column",
CONFIG_LOGOFF_TIME_DEFAULT),
config_value_read(data, "kickoff time column",
CONFIG_KICKOFF_TIME_DEFAULT),
config_value_read(data, "pass last set time column",
CONFIG_PASS_LAST_SET_TIME_DEFAULT),
config_value_read(data, "pass can change time column",
CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
config_value_read(data, "pass must change time column",
CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
config_value_read(data, "username column",
CONFIG_USERNAME_DEFAULT),
config_value_read(data, "domain column",
CONFIG_DOMAIN_DEFAULT),
config_value_read(data, "nt username column",
CONFIG_NT_USERNAME_DEFAULT),
config_value_read(data, "fullname column",
CONFIG_FULLNAME_DEFAULT),
config_value_read(data, "home dir column",
CONFIG_HOME_DIR_DEFAULT),
config_value_read(data, "dir drive column",
CONFIG_DIR_DRIVE_DEFAULT),
config_value_read(data, "logon script column",
CONFIG_LOGON_SCRIPT_DEFAULT),
config_value_read(data, "profile path column",
CONFIG_PROFILE_PATH_DEFAULT),
config_value_read(data, "acct desc column",
CONFIG_ACCT_DESC_DEFAULT),
config_value_read(data, "workstations column",
CONFIG_WORKSTATIONS_DEFAULT),
config_value_read(data, "unknown string column",
CONFIG_UNKNOWN_STR_DEFAULT),
config_value_read(data, "munged dial column",
CONFIG_MUNGED_DIAL_DEFAULT),
config_value_read(data, "user sid column",
CONFIG_USER_SID_DEFAULT),
config_value_read(data, "group sid column",
CONFIG_GROUP_SID_DEFAULT),
config_value_read(data, "lanman pass column",
CONFIG_LM_PW_DEFAULT),
config_value_read(data, "nt pass column",
CONFIG_NT_PW_DEFAULT),
config_value_read(data, "plain pass column",
CONFIG_PLAIN_PW_DEFAULT),
config_value_read(data, "acct ctrl column",
CONFIG_ACCT_CTRL_DEFAULT),
config_value_read(data, "logon divs column",
CONFIG_LOGON_DIVS_DEFAULT),
config_value_read(data, "hours len column",
CONFIG_HOURS_LEN_DEFAULT),
config_value_read(data, "bad password count column",
CONFIG_BAD_PASSWORD_COUNT_DEFAULT),
config_value_read(data, "logon count column",
CONFIG_LOGON_COUNT_DEFAULT),
config_value_read(data, "unknown 6 column",
CONFIG_UNKNOWN_6_DEFAULT),
config_value_read(data, "logon hours column",
CONFIG_LOGON_HOURS),
config_value(data, "table", CONFIG_TABLE_DEFAULT),
field_string, value
);
return query;
}
char *sql_account_query_delete(TALLOC_CTX *mem_ctx, const char *data, const char *esc)
{
char *query;
query = talloc_asprintf(mem_ctx, "DELETE FROM %s WHERE %s = '%s'",
config_value(data, "table", CONFIG_TABLE_DEFAULT),
config_value_read(data, "username column",
CONFIG_USERNAME_DEFAULT), esc);
return query;
}
char *sql_account_query_update(TALLOC_CTX *mem_ctx, const char *location, const SAM_ACCOUNT *newpwd, char isupdate)
{
char *ret;
pstring temp;
fstring sid_str;
pdb_sql_query *query;
int some_field_affected = 0;
query = talloc(mem_ctx, pdb_sql_query);
query->update = isupdate;
/* I know this is somewhat overkill but only the talloc
* functions have asprint_append and the 'normal' asprintf
* is a GNU extension */
query->part2 = talloc_asprintf(query, "%s", "");
if (query->update) {
query->part1 =
talloc_asprintf(query, "UPDATE %s SET ",
config_value(location, "table",
CONFIG_TABLE_DEFAULT));
} else {
query->part1 =
talloc_asprintf(query, "INSERT INTO %s (",
config_value(location, "table",
CONFIG_TABLE_DEFAULT));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_ACCTCTRL)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location, "acct ctrl column",
CONFIG_ACCT_CTRL_DEFAULT),
pdb_get_acct_ctrl(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_LOGONTIME)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"logon time column",
CONFIG_LOGON_TIME_DEFAULT),
pdb_get_logon_time(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_LOGOFFTIME)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"logoff time column",
CONFIG_LOGOFF_TIME_DEFAULT),
pdb_get_logoff_time(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_KICKOFFTIME)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"kickoff time column",
CONFIG_KICKOFF_TIME_DEFAULT),
pdb_get_kickoff_time(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_CANCHANGETIME)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"pass can change time column",
CONFIG_PASS_CAN_CHANGE_TIME_DEFAULT),
pdb_get_pass_can_change_time(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_MUSTCHANGETIME)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"pass must change time column",
CONFIG_PASS_MUST_CHANGE_TIME_DEFAULT),
pdb_get_pass_must_change_time(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_PASSLASTSET)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"pass last set time column",
CONFIG_PASS_LAST_SET_TIME_DEFAULT),
pdb_get_pass_last_set_time(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_HOURSLEN)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"hours len column",
CONFIG_HOURS_LEN_DEFAULT),
pdb_get_hours_len(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_LOGONDIVS)) {
some_field_affected = 1;
pdb_sql_int_field(query,
config_value_write(location,
"logon divs column",
CONFIG_LOGON_DIVS_DEFAULT),
pdb_get_logon_divs(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_USERSID)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "user sid column",
CONFIG_USER_SID_DEFAULT),
sid_to_string(sid_str,
pdb_get_user_sid(newpwd)));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_GROUPSID)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "group sid column",
CONFIG_GROUP_SID_DEFAULT),
sid_to_string(sid_str,
pdb_get_group_sid(newpwd)));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_USERNAME)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "username column",
CONFIG_USERNAME_DEFAULT),
pdb_get_username(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_DOMAIN)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "domain column",
CONFIG_DOMAIN_DEFAULT),
pdb_get_domain(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_USERNAME)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location,
"nt username column",
CONFIG_NT_USERNAME_DEFAULT),
pdb_get_nt_username(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_FULLNAME)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "fullname column",
CONFIG_FULLNAME_DEFAULT),
pdb_get_fullname(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_LOGONSCRIPT)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location,
"logon script column",
CONFIG_LOGON_SCRIPT_DEFAULT),
pdb_get_logon_script(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_PROFILE)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location,
"profile path column",
CONFIG_PROFILE_PATH_DEFAULT),
pdb_get_profile_path(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_DRIVE)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "dir drive column",
CONFIG_DIR_DRIVE_DEFAULT),
pdb_get_dir_drive(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_SMBHOME)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location, "home dir column",
CONFIG_HOME_DIR_DEFAULT),
pdb_get_homedir(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_WORKSTATIONS)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location,
"workstations column",
CONFIG_WORKSTATIONS_DEFAULT),
pdb_get_workstations(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_UNKNOWNSTR)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location,
"unknown string column",
CONFIG_UNKNOWN_STR_DEFAULT),
pdb_get_workstations(newpwd));
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_LMPASSWD)) {
some_field_affected = 1;
pdb_sethexpwd(temp, pdb_get_lanman_passwd(newpwd),
pdb_get_acct_ctrl(newpwd));
pdb_sql_string_field(query,
config_value_write(location,
"lanman pass column",
CONFIG_LM_PW_DEFAULT), temp);
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_NTPASSWD)) {
some_field_affected = 1;
pdb_sethexpwd(temp, pdb_get_nt_passwd(newpwd),
pdb_get_acct_ctrl(newpwd));
pdb_sql_string_field(query,
config_value_write(location, "nt pass column",
CONFIG_NT_PW_DEFAULT), temp);
}
if (!isupdate || IS_SAM_CHANGED(newpwd, PDB_HOURS)) {
some_field_affected = 1;
pdb_sql_string_field(query,
config_value_write(location,
"logon hours column",
CONFIG_LOGON_HOURS),
pdb_get_hours(newpwd));
}
if (!some_field_affected) {
talloc_free(query);
return NULL;
}
if (query->update) {
query->part1[strlen(query->part1) - 1] = '\0';
query->part1 =
talloc_asprintf_append(query->part1,
" WHERE %s = '%s'",
config_value_read(location,
"user sid column",
CONFIG_USER_SID_DEFAULT),
sid_to_string(sid_str, pdb_get_user_sid (newpwd)));
} else {
query->part2[strlen(query->part2) - 1] = ')';
query->part1[strlen(query->part1) - 1] = ')';
query->part1 =
talloc_asprintf_append(query->part1,
" VALUES (%s", query->part2);
}
ret = talloc_strdup(mem_ctx, query->part1);
talloc_free(query);
return ret;
}
BOOL sql_account_config_valid(const char *data)
{
const char *sid_column, *username_column;
sid_column = config_value_read(data, "user sid column", CONFIG_USER_SID_DEFAULT);
username_column = config_value_read(data, "username column", CONFIG_USERNAME_DEFAULT);
if(!strcmp(sid_column,"NULL") || !strcmp(username_column, "NULL")) {
DEBUG(0,("Please specify both a valid 'user sid column' and a valid 'username column' in smb.conf\n"));
return False;
}
return True;
}
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