mirror of
https://gitlab.isc.org/isc-projects/bind9
synced 2025-08-30 14:07:59 +00:00
Style cleanup in DLZ LDAP driver. No functional change, no CHANGES note.
This commit is contained in:
Evan Hunt
parent
c85677097d
commit
5d35a7a2fb
@ -15,7 +15,7 @@
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
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* USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* The development of Dynamically Loadable Zones (DLZ) for Bind 9 was
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* The development of Dynamically Loadable Zones (DLZ) for BIND 9 was
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* conceived and contributed by Rob Butler.
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*
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* Permission to use, copy, modify, and distribute this software for any
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@ -102,7 +102,6 @@ static dns_sdlzimplementation_t *dlz_ldap = NULL;
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*/
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typedef struct {
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#ifdef ISC_PLATFORM_USETHREADS
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db_list_t *db; /*%< handle to a list of DB */
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#else
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@ -113,7 +112,6 @@ typedef struct {
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char *cred; /*%< password for simple authentication method */
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int protocol; /*%< LDAP communication protocol version */
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char *hosts; /*%< LDAP server hosts */
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} ldap_instance_t;
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/* forward references */
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@ -129,10 +127,8 @@ dlz_ldap_destroy(void *driverarg, void *dbdata);
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*/
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/*% checks that the LDAP URL parameters make sense */
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static isc_result_t
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dlz_ldap_checkURL(char *URL, int attrCnt, const char *msg) {
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isc_result_t result = ISC_R_SUCCESS;
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int ldap_result;
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LDAPURLDesc *ldap_url = NULL;
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@ -199,17 +195,15 @@ dlz_ldap_checkURL(char *URL, int attrCnt, const char *msg) {
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}
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cleanup:
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if (ldap_url != NULL)
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ldap_free_urldesc(ldap_url);
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return result;
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return (result);
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}
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/*% Connects / reconnects to LDAP server */
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/*% Connects / reconnects to LDAP server */
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static isc_result_t
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dlz_ldap_connect(ldap_instance_t *dbi, dbinstance_t *dbc) {
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isc_result_t result;
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int ldap_result;
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@ -224,7 +218,7 @@ dlz_ldap_connect(ldap_instance_t *dbi, dbinstance_t *dbc) {
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/* initialize. */
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dbc->dbconn = ldap_init(dbi->hosts, LDAP_PORT);
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if (dbc->dbconn == NULL)
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return ISC_R_NOMEMORY;
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return (ISC_R_NOMEMORY);
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/* set protocol version. */
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ldap_result = ldap_set_option((LDAP *) dbc->dbconn,
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@ -243,7 +237,7 @@ dlz_ldap_connect(ldap_instance_t *dbi, dbinstance_t *dbc) {
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goto cleanup;
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}
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return ISC_R_SUCCESS;
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return (ISC_R_SUCCESS);
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cleanup:
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@ -253,7 +247,7 @@ dlz_ldap_connect(ldap_instance_t *dbi, dbinstance_t *dbc) {
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dbc->dbconn = NULL;
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}
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return result;
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return (result);
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}
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#ifdef ISC_PLATFORM_USETHREADS
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@ -265,9 +259,7 @@ dlz_ldap_connect(ldap_instance_t *dbi, dbinstance_t *dbc) {
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* multithreaded operation.
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*/
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static void
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ldap_destroy_dblist(db_list_t *dblist)
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{
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ldap_destroy_dblist(db_list_t *dblist) {
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dbinstance_t *ndbi = NULL;
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dbinstance_t *dbi = NULL;
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@ -299,10 +291,8 @@ ldap_destroy_dblist(db_list_t *dblist)
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* This function is only used when the driver is compiled for
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* multithreaded operation.
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*/
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static dbinstance_t *
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ldap_find_avail_conn(db_list_t *dblist)
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{
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ldap_find_avail_conn(db_list_t *dblist) {
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dbinstance_t *dbi = NULL;
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dbinstance_t *head;
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int count = 0;
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@ -314,7 +304,7 @@ ldap_find_avail_conn(db_list_t *dblist)
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while (count < dbc_search_limit) {
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/* try to lock on the mutex */
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if (isc_mutex_trylock(&dbi->instance_lock) == ISC_R_SUCCESS)
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return dbi; /* success, return the DBI for use. */
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return (dbi); /* success, return the DBI for use. */
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/* not successful, keep trying */
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dbi = ISC_LIST_NEXT(dbi, link);
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@ -330,9 +320,8 @@ ldap_find_avail_conn(db_list_t *dblist)
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"LDAP driver unable to find available connection "
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"after searching %d times",
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count);
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return NULL;
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return (NULL);
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}
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#endif /* ISC_PLATFORM_USETHREADS */
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static isc_result_t
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@ -361,12 +350,11 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
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DNS_LOGMODULE_DLZ, ISC_LOG_INFO,
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"LDAP no entries to process.");
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return ISC_R_FAILURE;
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return (ISC_R_FAILURE);
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}
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/* loop through all entries returned */
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while (entry != NULL) {
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/* reset for this loop */
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ttl = 0;
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len = 0;
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@ -374,7 +362,7 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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attribute = attrs[i];
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/* determine how much space we need for data string */
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for (j=0; attrs[j] != NULL; j++) {
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for (j = 0; attrs[j] != NULL; j++) {
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/* get the list of values for this attribute. */
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vals = ldap_get_values(dbc, entry, attrs[j]);
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/* skip empty attributes. */
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@ -387,7 +375,7 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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len = len + strlen(vals[0]) + 1;
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/* free vals for next loop */
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ldap_value_free(vals);
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} /* end for (j=0; attrs[j] != NULL, j++) loop */
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} /* end for (j = 0; attrs[j] != NULL, j++) loop */
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/* allocate memory for data string */
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data = isc_mem_allocate(ns_g_mctx, len + 1);
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@ -411,7 +399,6 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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/* loop through the attributes in the order specified. */
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while (attribute != NULL) {
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/* get the list of values for this attribute. */
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vals = ldap_get_values(dbc, entry, attribute);
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@ -486,18 +473,20 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
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DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
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"LDAP driver unable "
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"to retrieve dns type");
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"to retrieve DNS type");
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result = ISC_R_FAILURE;
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goto cleanup;
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}
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if (strlen(data) < 1) {
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isc_log_write(dns_lctx, DNS_LOGCATEGORY_DATABASE,
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DNS_LOGMODULE_DLZ, ISC_LOG_ERROR,
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"LDAP driver unable "
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"to retrieve dns data");
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"to retrieve DNS data");
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result = ISC_R_FAILURE;
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goto cleanup;
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}
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if (allnodes == isc_boolean_true) {
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if (strcasecmp(host, "~") == 0)
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result = dns_sdlz_putnamedrr(
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@ -547,7 +536,6 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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} /* end while (entry != NULL) */
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cleanup:
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/* de-allocate memory */
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if (vals != NULL)
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ldap_value_free(vals);
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@ -558,7 +546,7 @@ ldap_process_results(LDAP *dbc, LDAPMessage *msg, char ** attrs,
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if (data != NULL)
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isc_mem_free(ns_g_mctx, data);
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return result;
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return (result);
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}
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/*%
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@ -606,7 +594,7 @@ ldap_get_results(const char *zone, const char *record,
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/* if DBI is null, can't do anything else */
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if (dbi == NULL)
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return ISC_R_FAILURE;
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return (ISC_R_FAILURE);
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/* set fields */
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if (zone != NULL) {
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@ -735,7 +723,7 @@ ldap_get_results(const char *zone, const char *record,
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goto cleanup;
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}
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for (i=0; i < 3; i++) {
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for (i = 0; i < 3; i++) {
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/*
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* dbi->dbconn may be null if trying to reconnect on a
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@ -800,7 +788,7 @@ ldap_get_results(const char *zone, const char *record,
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goto cleanup;
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break;
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} /* close switch(ldap_result) */
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} /* end for (int i=0 i < 3; i++) */
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} /* end for (int i = 0 i < 3; i++) */
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if (result != ISC_R_SUCCESS)
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goto cleanup;
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@ -846,7 +834,6 @@ ldap_get_results(const char *zone, const char *record,
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result = ISC_R_UNEXPECTED;
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}
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cleanup:
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/* it's always good to cleanup after yourself */
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@ -877,13 +864,12 @@ ldap_get_results(const char *zone, const char *record,
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isc_mem_free(ns_g_mctx, querystring );
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/* return result */
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return result;
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return (result);
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}
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/*
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* DLZ methods
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*/
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static isc_result_t
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dlz_ldap_allowzonexfr(void *driverarg, void *dbdata, const char *name,
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const char *client)
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@ -895,11 +881,12 @@ dlz_ldap_allowzonexfr(void *driverarg, void *dbdata, const char *name,
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/* check to see if we are authoritative for the zone first */
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result = dlz_ldap_findzone(driverarg, dbdata, name);
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if (result != ISC_R_SUCCESS) {
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return result;
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return (result);
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}
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/* get all the zone data */
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return ldap_get_results(name, NULL, client, ALLOWXFR, dbdata, NULL);
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result = ldap_get_results(name, NULL, client, ALLOWXFR, dbdata, NULL);
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return (result);
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}
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static isc_result_t
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@ -907,7 +894,7 @@ dlz_ldap_allnodes(const char *zone, void *driverarg, void *dbdata,
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dns_sdlzallnodes_t *allnodes)
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{
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UNUSED(driverarg);
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return ldap_get_results(zone, NULL, NULL, ALLNODES, dbdata, allnodes);
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return (ldap_get_results(zone, NULL, NULL, ALLNODES, dbdata, allnodes));
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}
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static isc_result_t
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@ -915,27 +902,29 @@ dlz_ldap_authority(const char *zone, void *driverarg, void *dbdata,
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dns_sdlzlookup_t *lookup)
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{
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UNUSED(driverarg);
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return ldap_get_results(zone, NULL, NULL, AUTHORITY, dbdata, lookup);
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return (ldap_get_results(zone, NULL, NULL, AUTHORITY, dbdata, lookup));
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}
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static isc_result_t
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dlz_ldap_findzone(void *driverarg, void *dbdata, const char *name)
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{
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dlz_ldap_findzone(void *driverarg, void *dbdata, const char *name) {
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UNUSED(driverarg);
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return ldap_get_results(name, NULL, NULL, FINDZONE, dbdata, NULL);
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return (ldap_get_results(name, NULL, NULL, FINDZONE, dbdata, NULL));
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}
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static isc_result_t
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dlz_ldap_lookup(const char *zone, const char *name, void *driverarg,
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void *dbdata, dns_sdlzlookup_t *lookup)
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{
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isc_result_t result;
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UNUSED(driverarg);
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if (strcmp(name, "*") == 0)
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return ldap_get_results(zone, "~", NULL,
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LOOKUP, dbdata, lookup);
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result = ldap_get_results(zone, "~", NULL, LOOKUP,
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dbdata, lookup);
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else
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return ldap_get_results(zone, name, NULL,
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LOOKUP, dbdata, lookup);
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result = ldap_get_results(zone, name, NULL, LOOKUP,
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dbdata, lookup);
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return (result);
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}
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@ -943,7 +932,6 @@ static isc_result_t
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dlz_ldap_create(const char *dlzname, unsigned int argc, char *argv[],
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void *driverarg, void **dbdata)
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{
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isc_result_t result;
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ldap_instance_t *ldap_inst = NULL;
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dbinstance_t *dbi = NULL;
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@ -1039,24 +1027,24 @@ dlz_ldap_create(const char *dlzname, unsigned int argc, char *argv[],
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case 12:
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result = dlz_ldap_checkURL(argv[11], 0, "allow zone transfer");
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if (result != ISC_R_SUCCESS)
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return result;
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return (result);
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case 11:
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result = dlz_ldap_checkURL(argv[10], 3, "all nodes");
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if (result != ISC_R_SUCCESS)
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return result;
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return (result);
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case 10:
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if (strlen(argv[9]) > 0) {
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result = dlz_ldap_checkURL(argv[9], 3, "authority");
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if (result != ISC_R_SUCCESS)
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return result;
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return (result);
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}
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case 9:
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result = dlz_ldap_checkURL(argv[8], 3, "lookup");
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if (result != ISC_R_SUCCESS)
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return result;
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return (result);
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result = dlz_ldap_checkURL(argv[7], 0, "find zone");
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if (result != ISC_R_SUCCESS)
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return result;
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return (result);
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break;
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default:
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/* not really needed, should shut up compiler. */
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@ -1248,36 +1236,28 @@ dlz_ldap_create(const char *dlzname, unsigned int argc, char *argv[],
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return(ISC_R_SUCCESS);
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cleanup:
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dlz_ldap_destroy(NULL, ldap_inst);
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return(ISC_R_FAILURE);
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}
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void
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dlz_ldap_destroy(void *driverarg, void *dbdata)
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{
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dlz_ldap_destroy(void *driverarg, void *dbdata) {
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UNUSED(driverarg);
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if (dbdata != NULL) {
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#ifdef ISC_PLATFORM_USETHREADS
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/* cleanup the list of DBI's */
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ldap_destroy_dblist((db_list_t *)
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((ldap_instance_t *)dbdata)->db);
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#else /* ISC_PLATFORM_USETHREADS */
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/* release connection */
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if (((ldap_instance_t *)dbdata)->db->dbconn != NULL)
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ldap_unbind_s((LDAP *)
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((ldap_instance_t *)dbdata)->db->dbconn);
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/* destroy single DB instance */
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destroy_sqldbinstance(((ldap_instance_t *)dbdata)->db);
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#endif /* ISC_PLATFORM_USETHREADS */
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if (((ldap_instance_t *)dbdata)->hosts != NULL)
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@ -1338,8 +1318,7 @@ dlz_ldap_init(void) {
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result = ISC_R_UNEXPECTED;
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}
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return result;
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return (result);
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}
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/*%
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@ -1347,7 +1326,6 @@ dlz_ldap_init(void) {
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*/
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void
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dlz_ldap_clear(void) {
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/*
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* Write debugging message to log
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*/
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