diff options
Diffstat (limited to 'source/lib/smbldap.c')
| -rw-r--r-- | source/lib/smbldap.c | 734 |
1 files changed, 730 insertions, 4 deletions
diff --git a/source/lib/smbldap.c b/source/lib/smbldap.c index bb37222d5af..84017873177 100644 --- a/source/lib/smbldap.c +++ b/source/lib/smbldap.c @@ -1,7 +1,11 @@ /* Unix SMB/CIFS mplementation. LDAP protocol helper functions for SAMBA + Copyright (C) Jean François Micouleau 1998 Copyright (C) Gerald Carter 2001-2003 + Copyright (C) Shahms King 2001 + Copyright (C) Andrew Bartlett 2002-2003 + Copyright (C) Stefan (metze) Metzmacher 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 @@ -22,6 +26,16 @@ #include "includes.h" #include "smbldap.h" +#ifndef LDAP_OPT_SUCCESS +#define LDAP_OPT_SUCCESS 0 +#endif + +/* Try not to hit the up or down server forever */ + +#define SMBLDAP_DONT_PING_TIME 10 /* ping only all 10 seconds */ +#define SMBLDAP_NUM_RETRIES 8 /* retry only 8 times */ + + /* attributes used by Samba 2.2 */ ATTRIB_MAP_ENTRY attrib_map_v22[] = { @@ -133,7 +147,7 @@ ATTRIB_MAP_ENTRY sidmap_attr_list[] = { perform a simple table lookup and return the attribute name **********************************************************************/ -const char* get_attr_key2string( ATTRIB_MAP_ENTRY table[], int key ) + const char* get_attr_key2string( ATTRIB_MAP_ENTRY table[], int key ) { int i = 0; @@ -151,7 +165,7 @@ const char* get_attr_key2string( ATTRIB_MAP_ENTRY table[], int key ) Return the list of attribute names from a mapping table **********************************************************************/ -char** get_attr_list( ATTRIB_MAP_ENTRY table[] ) + char** get_attr_list( ATTRIB_MAP_ENTRY table[] ) { char **names; int i = 0; @@ -180,7 +194,7 @@ char** get_attr_list( ATTRIB_MAP_ENTRY table[] ) Cleanup ********************************************************************/ -void free_attr_list( char **list ) + void free_attr_list( char **list ) { int i = 0; @@ -262,7 +276,7 @@ BOOL fetch_ldap_pw(char **dn, char** pw) manage memory used by the array, by each struct, and values ***********************************************************************/ -void ldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const char *value) + void smbldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const char *value) { LDAPMod **mods; int i; @@ -344,3 +358,715 @@ void ldap_set_mod (LDAPMod *** modlist, int modop, const char *attribute, const *modlist = mods; } + +/********************************************************************** + Set attribute to newval in LDAP, regardless of what value the + attribute had in LDAP before. +*********************************************************************/ + void smbldap_make_mod(LDAP *ldap_struct, LDAPMessage *existing, + LDAPMod ***mods, + const char *attribute, const char *newval) +{ + char **values = NULL; + + if (existing != NULL) { + values = ldap_get_values(ldap_struct, existing, attribute); + } + + /* all of our string attributes are case insensitive */ + + if ((values != NULL) && (values[0] != NULL) && + StrCaseCmp(values[0], newval) == 0) + { + + /* Believe it or not, but LDAP will deny a delete and + an add at the same time if the values are the + same... */ + + ldap_value_free(values); + return; + } + + /* Regardless of the real operation (add or modify) + we add the new value here. We rely on deleting + the old value, should it exist. */ + + if ((newval != NULL) && (strlen(newval) > 0)) { + smbldap_set_mod(mods, LDAP_MOD_ADD, attribute, newval); + } + + if (values == NULL) { + /* There has been no value before, so don't delete it. + Here's a possible race: We might end up with + duplicate attributes */ + return; + } + + /* By deleting exactly the value we found in the entry this + should be race-free in the sense that the LDAP-Server will + deny the complete operation if somebody changed the + attribute behind our back. */ + + smbldap_set_mod(mods, LDAP_MOD_DELETE, attribute, values[0]); + ldap_value_free(values); +} + + +/********************************************************************** + Some varients of the LDAP rebind code do not pass in the third 'arg' + pointer to a void*, so we try and work around it by assuming that the + value of the 'LDAP *' pointer is the same as the one we had passed in + **********************************************************************/ + +struct smbldap_state_lookup { + LDAP *ld; + struct smbldap_state *smbldap_state; + struct smbldap_state_lookup *prev, *next; +}; + +static struct smbldap_state_lookup *smbldap_state_lookup_list; + +static struct smbldap_state *smbldap_find_state(LDAP *ld) +{ + struct smbldap_state_lookup *t; + + for (t = smbldap_state_lookup_list; t; t = t->next) { + if (t->ld == ld) { + return t->smbldap_state; + } + } + return NULL; +} + +static void smbldap_delete_state(struct smbldap_state *smbldap_state) +{ + struct smbldap_state_lookup *t; + + for (t = smbldap_state_lookup_list; t; t = t->next) { + if (t->smbldap_state == smbldap_state) { + DLIST_REMOVE(smbldap_state_lookup_list, t); + SAFE_FREE(t); + return; + } + } +} + +static void smbldap_store_state(LDAP *ld, struct smbldap_state *smbldap_state) +{ + struct smbldap_state *tmp_ldap_state; + struct smbldap_state_lookup *t; + struct smbldap_state_lookup *tmp; + + if ((tmp_ldap_state = smbldap_find_state(ld))) { + SMB_ASSERT(tmp_ldap_state == smbldap_state); + return; + } + + t = smb_xmalloc(sizeof(*t)); + ZERO_STRUCTP(t); + + DLIST_ADD_END(smbldap_state_lookup_list, t, tmp); + t->ld = ld; + t->smbldap_state = smbldap_state; +} + +/******************************************************************* + open a connection to the ldap server. +******************************************************************/ +static int smbldap_open_connection (struct smbldap_state *ldap_state) + +{ + int rc = LDAP_SUCCESS; + int version; + BOOL ldap_v3 = False; + LDAP **ldap_struct = &ldap_state->ldap_struct; + +#ifdef HAVE_LDAP_INITIALIZE + DEBUG(10, ("smbldap_open_connection: %s\n", ldap_state->uri)); + + if ((rc = ldap_initialize(ldap_struct, ldap_state->uri)) != LDAP_SUCCESS) { + DEBUG(0, ("ldap_initialize: %s\n", ldap_err2string(rc))); + return rc; + } +#else + + /* Parse the string manually */ + + { + int port = 0; + fstring protocol; + fstring host; + const char *p = ldap_state->uri; + SMB_ASSERT(sizeof(protocol)>10 && sizeof(host)>254); + + /* skip leading "URL:" (if any) */ + if ( strncasecmp( p, "URL:", 4 ) == 0 ) { + p += 4; + } + + sscanf(p, "%10[^:]://%254s[^:]:%d", protocol, host, &port); + + if (port == 0) { + if (strequal(protocol, "ldap")) { + port = LDAP_PORT; + } else if (strequal(protocol, "ldaps")) { + port = LDAPS_PORT; + } else { + DEBUG(0, ("unrecognised protocol (%s)!\n", protocol)); + } + } + + if ((*ldap_struct = ldap_init(host, port)) == NULL) { + DEBUG(0, ("ldap_init failed !\n")); + return LDAP_OPERATIONS_ERROR; + } + + if (strequal(protocol, "ldaps")) { +#ifdef LDAP_OPT_X_TLS + int tls = LDAP_OPT_X_TLS_HARD; + if (ldap_set_option (*ldap_struct, LDAP_OPT_X_TLS, &tls) != LDAP_SUCCESS) + { + DEBUG(0, ("Failed to setup a TLS session\n")); + } + + DEBUG(3,("LDAPS option set...!\n")); +#else + DEBUG(0,("smbldap_open_connection: Secure connection not supported by LDAP client libraries!\n")); + return LDAP_OPERATIONS_ERROR; +#endif + } + } +#endif + + /* Store the LDAP pointer in a lookup list */ + + smbldap_store_state(*ldap_struct, ldap_state); + + /* Upgrade to LDAPv3 if possible */ + + if (ldap_get_option(*ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version) == LDAP_OPT_SUCCESS) + { + if (version != LDAP_VERSION3) + { + version = LDAP_VERSION3; + if (ldap_set_option (*ldap_struct, LDAP_OPT_PROTOCOL_VERSION, &version) == LDAP_OPT_SUCCESS) { + ldap_v3 = True; + } + } else { + ldap_v3 = True; + } + } + + if (lp_ldap_ssl() == LDAP_SSL_START_TLS) { +#ifdef LDAP_OPT_X_TLS + if (ldap_v3) { + if ((rc = ldap_start_tls_s (*ldap_struct, NULL, NULL)) != LDAP_SUCCESS) + { + DEBUG(0,("Failed to issue the StartTLS instruction: %s\n", + ldap_err2string(rc))); + return rc; + } + DEBUG (3, ("StartTLS issued: using a TLS connection\n")); + } else { + + DEBUG(0, ("Need LDAPv3 for Start TLS\n")); + return LDAP_OPERATIONS_ERROR; + } +#else + DEBUG(0,("smbldap_open_connection: StartTLS not supported by LDAP client libraries!\n")); + return LDAP_OPERATIONS_ERROR; +#endif + } + + DEBUG(2, ("smbldap_open_connection: connection opened\n")); + return rc; +} + + +/******************************************************************* + a rebind function for authenticated referrals + This version takes a void* that we can shove useful stuff in :-) +******************************************************************/ +#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000) +#else +static int rebindproc_with_state (LDAP * ld, char **whop, char **credp, + int *methodp, int freeit, void *arg) +{ + struct smbldap_state *ldap_state = arg; + + /** @TODO Should we be doing something to check what servers we rebind to? + Could we get a referral to a machine that we don't want to give our + username and password to? */ + + if (freeit) { + SAFE_FREE(*whop); + memset(*credp, '\0', strlen(*credp)); + SAFE_FREE(*credp); + } else { + DEBUG(5,("rebind_proc_with_state: Rebinding as \"%s\"\n", + ldap_state->bind_dn)); + + *whop = strdup(ldap_state->bind_dn); + if (!*whop) { + return LDAP_NO_MEMORY; + } + *credp = strdup(ldap_state->bind_secret); + if (!*credp) { + SAFE_FREE(*whop); + return LDAP_NO_MEMORY; + } + *methodp = LDAP_AUTH_SIMPLE; + } + return 0; +} +#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/ + +/******************************************************************* + a rebind function for authenticated referrals + This version takes a void* that we can shove useful stuff in :-) + and actually does the connection. +******************************************************************/ +#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000) +static int rebindproc_connect_with_state (LDAP *ldap_struct, + LDAP_CONST char *url, + ber_tag_t request, + ber_int_t msgid, void *arg) +{ + struct smbldap_state *ldap_state = arg; + int rc; + DEBUG(5,("rebindproc_connect_with_state: Rebinding as \"%s\"\n", + ldap_state->bind_dn)); + + /** @TODO Should we be doing something to check what servers we rebind to? + Could we get a referral to a machine that we don't want to give our + username and password to? */ + + rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret); + + return rc; +} +#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/ + +/******************************************************************* + Add a rebind function for authenticated referrals +******************************************************************/ +#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000) +#else +# if LDAP_SET_REBIND_PROC_ARGS == 2 +static int rebindproc (LDAP *ldap_struct, char **whop, char **credp, + int *method, int freeit ) +{ + struct smbldap_state *ldap_state = smbldap_find_state(ldap_struct); + + return rebindproc_with_state(ldap_struct, whop, credp, + method, freeit, ldap_state); + +} +# endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/ +#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/ + +/******************************************************************* + a rebind function for authenticated referrals + this also does the connection, but no void*. +******************************************************************/ +#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000) +# if LDAP_SET_REBIND_PROC_ARGS == 2 +static int rebindproc_connect (LDAP * ld, LDAP_CONST char *url, int request, + ber_int_t msgid) +{ + struct smbldap_state *ldap_state = smbldap_find_state(ld); + + return rebindproc_connect_with_state(ld, url, (ber_tag_t)request, msgid, + ldap_state); +} +# endif /*LDAP_SET_REBIND_PROC_ARGS == 2*/ +#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/ + +/******************************************************************* + connect to the ldap server under system privilege. +******************************************************************/ +static int smbldap_connect_system(struct smbldap_state *ldap_state, LDAP * ldap_struct) +{ + int rc; + char *ldap_dn; + char *ldap_secret; + + /* get the password */ + if (!fetch_ldap_pw(&ldap_dn, &ldap_secret)) + { + DEBUG(0, ("ldap_connect_system: Failed to retrieve password from secrets.tdb\n")); + return LDAP_INVALID_CREDENTIALS; + } + + ldap_state->bind_dn = ldap_dn; + ldap_state->bind_secret = ldap_secret; + + /* removed the sasl_bind_s "EXTERNAL" stuff, as my testsuite + (OpenLDAP) doesnt' seem to support it */ + + DEBUG(10,("ldap_connect_system: Binding to ldap server %s as \"%s\"\n", + ldap_state->uri, ldap_dn)); + +#if defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000) +# if LDAP_SET_REBIND_PROC_ARGS == 2 + ldap_set_rebind_proc(ldap_struct, &rebindproc_connect); +# endif +# if LDAP_SET_REBIND_PROC_ARGS == 3 + ldap_set_rebind_proc(ldap_struct, &rebindproc_connect_with_state, (void *)ldap_state); +# endif +#else /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/ +# if LDAP_SET_REBIND_PROC_ARGS == 2 + ldap_set_rebind_proc(ldap_struct, &rebindproc); +# endif +# if LDAP_SET_REBIND_PROC_ARGS == 3 + ldap_set_rebind_proc(ldap_struct, &rebindproc_with_state, (void *)ldap_state); +# endif +#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/ + + rc = ldap_simple_bind_s(ldap_struct, ldap_dn, ldap_secret); + + if (rc != LDAP_SUCCESS) { + char *ld_error = NULL; + ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, + &ld_error); + DEBUG(ldap_state->num_failures ? 2 : 0, + ("failed to bind to server with dn= %s Error: %s\n\t%s\n", + ldap_dn ? ldap_dn : "(unknown)", ldap_err2string(rc), + ld_error ? ld_error : "(unknown)")); + SAFE_FREE(ld_error); + ldap_state->num_failures++; + return rc; + } + + ldap_state->num_failures = 0; + + DEBUG(3, ("ldap_connect_system: succesful connection to the LDAP server\n")); + return rc; +} + +/********************************************************************** +Connect to LDAP server (called before every ldap operation) +*********************************************************************/ +static int smbldap_open(struct smbldap_state *ldap_state) +{ + int rc; + SMB_ASSERT(ldap_state); + +#ifndef NO_LDAP_SECURITY + if (geteuid() != 0) { + DEBUG(0, ("smbldap_open: cannot access LDAP when not root..\n")); + return LDAP_INSUFFICIENT_ACCESS; + } +#endif + + if ((ldap_state->ldap_struct != NULL) && ((ldap_state->last_ping + SMBLDAP_DONT_PING_TIME) < time(NULL))) { + struct sockaddr_un addr; + socklen_t len = sizeof(addr); + int sd; + if (ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_DESC, &sd) == 0 && + getpeername(sd, (struct sockaddr *) &addr, &len) < 0) { + /* the other end has died. reopen. */ + ldap_unbind_ext(ldap_state->ldap_struct, NULL, NULL); + ldap_state->ldap_struct = NULL; + ldap_state->last_ping = (time_t)0; + } else { + ldap_state->last_ping = time(NULL); + } + } + + if (ldap_state->ldap_struct != NULL) { + DEBUG(5,("smbldap_open: already connected to the LDAP server\n")); + return LDAP_SUCCESS; + } + + if ((rc = smbldap_open_connection(ldap_state))) { + return rc; + } + + if ((rc = smbldap_connect_system(ldap_state, ldap_state->ldap_struct))) { + ldap_unbind_ext(ldap_state->ldap_struct, NULL, NULL); + ldap_state->ldap_struct = NULL; + return rc; + } + + + ldap_state->last_ping = time(NULL); + DEBUG(4,("The LDAP server is succesful connected\n")); + + return LDAP_SUCCESS; +} + +/********************************************************************** +Disconnect from LDAP server +*********************************************************************/ +static NTSTATUS smbldap_close(struct smbldap_state *ldap_state) +{ + if (!ldap_state) + return NT_STATUS_INVALID_PARAMETER; + + if (ldap_state->ldap_struct != NULL) { + ldap_unbind_ext(ldap_state->ldap_struct, NULL, NULL); + ldap_state->ldap_struct = NULL; + } + + smbldap_delete_state(ldap_state); + + DEBUG(5,("The connection to the LDAP server was closed\n")); + /* maybe free the results here --metze */ + + + + return NT_STATUS_OK; +} + +static int smbldap_retry_open(struct smbldap_state *ldap_state, int *attempts) +{ + int rc; + + SMB_ASSERT(ldap_state && attempts); + + if (*attempts != 0) { + unsigned int sleep_time; + uint8 rand_byte; + + /* Sleep for a random timeout */ + rand_byte = (char)(sys_random()); + + sleep_time = (((*attempts)*(*attempts))/2)*rand_byte*2; + /* we retry after (0.5, 1, 2, 3, 4.5, 6) seconds + on average. + */ + DEBUG(3, ("Sleeping for %u milliseconds before reconnecting\n", + sleep_time)); + msleep(sleep_time); + } + (*attempts)++; + + if ((rc = smbldap_open(ldap_state))) { + DEBUG(1,("Connection to LDAP Server failed for the %d try!\n",*attempts)); + return rc; + } + + return LDAP_SUCCESS; +} + + +/********************************************************************* + ********************************************************************/ + +int smbldap_search(struct smbldap_state *ldap_state, + const char *base, int scope, const char *filter, + char *attrs[], int attrsonly, + LDAPMessage **res) +{ + int rc = LDAP_SERVER_DOWN; + int attempts = 0; + char *utf8_filter; + + SMB_ASSERT(ldap_state); + + if (push_utf8_allocate(&utf8_filter, filter) == (size_t)-1) { + return LDAP_NO_MEMORY; + } + + while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) { + + if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS) + continue; + + rc = ldap_search_s(ldap_state->ldap_struct, base, scope, + utf8_filter, attrs, attrsonly, res); + } + + if (rc == LDAP_SERVER_DOWN) { + DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO)); + smbldap_close(ldap_state); + } + + SAFE_FREE(utf8_filter); + return rc; +} + +int smbldap_modify(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[]) +{ + int rc = LDAP_SERVER_DOWN; + int attempts = 0; + char *utf8_dn; + + SMB_ASSERT(ldap_state); + + if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) { + return LDAP_NO_MEMORY; + } + + while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) { + + if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS) + continue; + + rc = ldap_modify_s(ldap_state->ldap_struct, utf8_dn, attrs); + } + + if (rc == LDAP_SERVER_DOWN) { + DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO)); + smbldap_close(ldap_state); + } + + SAFE_FREE(utf8_dn); + return rc; +} + +int smbldap_add(struct smbldap_state *ldap_state, const char *dn, LDAPMod *attrs[]) +{ + int rc = LDAP_SERVER_DOWN; + int attempts = 0; + char *utf8_dn; + + SMB_ASSERT(ldap_state); + + if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) { + return LDAP_NO_MEMORY; + } + + while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) { + + if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS) + continue; + + rc = ldap_add_s(ldap_state->ldap_struct, utf8_dn, attrs); + } + + if (rc == LDAP_SERVER_DOWN) { + DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO)); + smbldap_close(ldap_state); + } + + SAFE_FREE(utf8_dn); + return rc; +} + +int smbldap_delete(struct smbldap_state *ldap_state, const char *dn) +{ + int rc = LDAP_SERVER_DOWN; + int attempts = 0; + char *utf8_dn; + + SMB_ASSERT(ldap_state); + + if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) { + return LDAP_NO_MEMORY; + } + + while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) { + + if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS) + continue; + + rc = ldap_delete_s(ldap_state->ldap_struct, utf8_dn); + } + + if (rc == LDAP_SERVER_DOWN) { + DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO)); + smbldap_close(ldap_state); + } + + SAFE_FREE(utf8_dn); + return rc; +} + +int smbldap_extended_operation(struct smbldap_state *ldap_state, + LDAP_CONST char *reqoid, struct berval *reqdata, + LDAPControl **serverctrls, LDAPControl **clientctrls, + char **retoidp, struct berval **retdatap) +{ + int rc = LDAP_SERVER_DOWN; + int attempts = 0; + + if (!ldap_state) + return (-1); + + while ((rc == LDAP_SERVER_DOWN) && (attempts < SMBLDAP_NUM_RETRIES)) { + + if ((rc = smbldap_retry_open(ldap_state,&attempts)) != LDAP_SUCCESS) + continue; + + rc = ldap_extended_operation_s(ldap_state->ldap_struct, reqoid, reqdata, + serverctrls, clientctrls, retoidp, retdatap); + } + + if (rc == LDAP_SERVER_DOWN) { + DEBUG(0,("%s: LDAP server is down!\n",FUNCTION_MACRO)); + smbldap_close(ldap_state); + } + + return rc; +} + +/******************************************************************* + run the search by name. +******************************************************************/ +int smbldap_search_suffix (struct smbldap_state *ldap_state, const char *filter, + char **search_attr, LDAPMessage ** result) +{ + int scope = LDAP_SCOPE_SUBTREE; + int rc; + + DEBUG(2, ("smbldap_search_suffix: searching for:[%s]\n", filter)); + + rc = smbldap_search(ldap_state, lp_ldap_suffix(), scope, filter, search_attr, 0, result); + + if (rc != LDAP_SUCCESS) { + char *ld_error = NULL; + ldap_get_option(ldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, + &ld_error); + DEBUG(0,("smbldap_search_suffix: Problem during the LDAP search: %s (%s)\n", + ld_error?ld_error:"(unknown)", ldap_err2string (rc))); + DEBUG(3,("smbldap_search_suffix: Query was: %s, %s\n", lp_ldap_suffix(), + filter)); + SAFE_FREE(ld_error); + } + + return rc; +} + +/********************************************************************** + Housekeeping + *********************************************************************/ + +void smbldap_free_struct(struct smbldap_state **ldap_state) +{ + smbldap_close(*ldap_state); + + if ((*ldap_state)->bind_secret) { + memset((*ldap_state)->bind_secret, '\0', strlen((*ldap_state)->bind_secret)); + } + + SAFE_FREE((*ldap_state)->bind_dn); + SAFE_FREE((*ldap_state)->bind_secret); + + *ldap_state = NULL; + + /* No need to free any further, as it is talloc()ed */ +} + + +/********************************************************************** + Intitalise the 'general' ldap structures, on which ldap operations may be conducted + *********************************************************************/ + +NTSTATUS smbldap_init(TALLOC_CTX *mem_ctx, const char *location, struct smbldap_state **smbldap_state) +{ + *smbldap_state = talloc_zero(mem_ctx, sizeof(**smbldap_state)); + if (!*smbldap_state) { + DEBUG(0, ("talloc() failed for ldapsam private_data!\n")); + return NT_STATUS_NO_MEMORY; + } + + if (location) { + (*smbldap_state)->uri = talloc_strdup(mem_ctx, location); + } else { + (*smbldap_state)->uri = "ldap://localhost"; + } + return NT_STATUS_OK; +} + |