s3:winbind add wcache_tdc_fetch_domainbysid

add a function to lookup a domain in the winbind cache by domain SID

diff --git a/source3/winbindd/winbindd_cache.c b/source3/winbindd/winbindd_cache.c
index c6ef293134518641506dcec16b80f25a66cf721f..9363a70a2145ef1a28036dc6203006702ac08bf0 100644 (file)
--- a/source3/winbindd/winbindd_cache.c
+++ b/source3/winbindd/winbindd_cache.c
@@ -4542,6 +4542,58 @@ struct winbindd_tdc_domain * wcache_tdc_fetch_domain( TALLOC_CTX *ctx, const cha
        return d;       
 }
 
+/*********************************************************************
+ ********************************************************************/
+
+struct winbindd_tdc_domain*
+       wcache_tdc_fetch_domainbysid(TALLOC_CTX *ctx,
+                                    const struct dom_sid *sid)
+{
+       struct winbindd_tdc_domain *dom_list = NULL;
+       size_t num_domains = 0;
+       int i;
+       struct winbindd_tdc_domain *d = NULL;
+
+       DEBUG(10,("wcache_tdc_fetch_domainbysid: Searching for domain %s\n",
+                 sid_string_dbg(sid)));
+
+       if (!init_wcache()) {
+               return false;
+       }
+
+       /* fetch the list */
+
+       wcache_tdc_fetch_list(&dom_list, &num_domains);
+
+       for (i = 0; i<num_domains; i++) {
+               if (sid_equal(sid, &(dom_list[i].sid))) {
+                       DEBUG(10, ("wcache_tdc_fetch_domainbysid: "
+                                  "Found domain %s for SID %s\n",
+                                  dom_list[i].domain_name,
+                                  sid_string_dbg(sid)));
+
+                       d = TALLOC_P(ctx, struct winbindd_tdc_domain);
+                       if (!d)
+                               break;
+
+                       d->domain_name = talloc_strdup(d,
+                                                      dom_list[i].domain_name);
+
+                       d->dns_name = talloc_strdup(d, dom_list[i].dns_name);
+                       sid_copy(&d->sid, &dom_list[i].sid);
+                       d->trust_flags = dom_list[i].trust_flags;
+                       d->trust_type = dom_list[i].trust_type;
+                       d->trust_attribs = dom_list[i].trust_attribs;
+
+                       break;
+               }
+       }
+
+        TALLOC_FREE(dom_list);
+
+       return d;
+}
+
 
 /*********************************************************************
  ********************************************************************/

diff --git a/source3/winbindd/winbindd_proto.h b/source3/winbindd/winbindd_proto.h
index ecdbdfe6846ceb6b23f2d6f65d7eb04f5059c84d..52e6bfede0f0b3c662953f746df3a19e7cc7fec5 100644 (file)
--- a/source3/winbindd/winbindd_proto.h
+++ b/source3/winbindd/winbindd_proto.h
@@ -134,6 +134,7 @@ bool winbindd_cache_validate_and_initialize(void);
 bool wcache_tdc_fetch_list( struct winbindd_tdc_domain **domains, size_t *num_domains );
 bool wcache_tdc_add_domain( struct winbindd_domain *domain );
 struct winbindd_tdc_domain * wcache_tdc_fetch_domain( TALLOC_CTX *ctx, const char *name );
+struct winbindd_tdc_domain* wcache_tdc_fetch_domainbysid(TALLOC_CTX *ctx, const struct dom_sid *sid);
 void wcache_tdc_clear( void );
 #ifdef HAVE_ADS
 struct ads_struct;