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Diffstat (limited to 'source3/libsmb/namecache.c')
-rw-r--r--source3/libsmb/namecache.c111
1 files changed, 89 insertions, 22 deletions
diff --git a/source3/libsmb/namecache.c b/source3/libsmb/namecache.c
index d3541b7719..e3e7ac4e3c 100644
--- a/source3/libsmb/namecache.c
+++ b/source3/libsmb/namecache.c
@@ -113,7 +113,7 @@ static char* namecache_key(const char *name, int name_type)
**/
BOOL namecache_store(const char *name, int name_type,
- int num_names, struct in_addr *ip_list)
+ int num_names, struct ip_service *ip_list)
{
time_t expiry;
char *key, *value_string;
@@ -126,27 +126,19 @@ BOOL namecache_store(const char *name, int name_type,
*/
if (!gencache_init()) return False;
- DEBUG(5, ("namecache_store: storing %d address%s for %s#%02x: ",
- num_names, num_names == 1 ? "": "es", name, name_type));
-
- for (i = 0; i < num_names; i++)
- DEBUGADD(5, ("%s%s", inet_ntoa(ip_list[i]),
- i == (num_names - 1) ? "" : ", "));
-
- DEBUGADD(5, ("\n"));
+ if ( DEBUGLEVEL >= 5 ) {
+ DEBUG(5, ("namecache_store: storing %d address%s for %s#%02x: ",
+ num_names, num_names == 1 ? "": "es", name, name_type));
+ for (i = 0; i < num_names; i++)
+ DEBUGADD(5, ("%s:%d%s", inet_ntoa(ip_list[i].ip),
+ ip_list[i].port, (i == (num_names - 1) ? "" : ",")));
+
+ DEBUGADD(5, ("\n"));
+ }
+
key = namecache_key(name, name_type);
-
- /*
- * Cache pdc location or dc lists for only a little while
- * otherwise if we lock on to a bad DC we can potentially be
- * out of action for the entire cache timeout time!
- */
-
- if (name_type == 0x1b || name_type == 0x1c)
- expiry = time(NULL) + 10;
- else
- expiry = time(NULL) + lp_name_cache_timeout();
+ expiry = time(NULL) + lp_name_cache_timeout();
/*
* Generate string representation of ip addresses list
@@ -180,7 +172,7 @@ BOOL namecache_store(const char *name, int name_type,
* false if name isn't found in the cache or has expired
**/
-BOOL namecache_fetch(const char *name, int name_type, struct in_addr **ip_list,
+BOOL namecache_fetch(const char *name, int name_type, struct ip_service **ip_list,
int *num_names)
{
char *key, *value;
@@ -201,7 +193,9 @@ BOOL namecache_fetch(const char *name, int name_type, struct in_addr **ip_list,
if (!gencache_get(key, &value, &timeout)) {
DEBUG(5, ("no entry for %s#%02X found.\n", name, name_type));
+ gencache_del(key);
SAFE_FREE(key);
+ SAFE_FREE(value);
return False;
} else {
DEBUG(5, ("name %s#%02X found.\n", name, name_type));
@@ -213,7 +207,8 @@ BOOL namecache_fetch(const char *name, int name_type, struct in_addr **ip_list,
*num_names = ipstr_list_parse(value, ip_list);
SAFE_FREE(key);
- SAFE_FREE(value);
+ SAFE_FREE(value);
+
return *num_names > 0; /* true only if some ip has been fetched */
}
@@ -252,3 +247,75 @@ void namecache_flush(void)
DEBUG(5, ("Namecache flushed\n"));
}
+/* Construct a name status record key. */
+
+static char *namecache_status_record_key(const char *name, int name_type1,
+ int name_type2, struct in_addr keyip)
+{
+ char *keystr;
+
+ asprintf(&keystr, "NBT/%s#%02X.%02X.%s",
+ strupper_static(name), name_type1, name_type2, inet_ntoa(keyip));
+ return keystr;
+}
+
+/* Store a name status record. */
+
+BOOL namecache_status_store(const char *keyname, int keyname_type,
+ int name_type, struct in_addr keyip,
+ const char *srvname)
+{
+ char *key;
+ time_t expiry;
+ BOOL ret;
+
+ if (!gencache_init())
+ return False;
+
+ key = namecache_status_record_key(keyname, keyname_type, name_type, keyip);
+ if (!key)
+ return False;
+
+ expiry = time(NULL) + lp_name_cache_timeout();
+ ret = gencache_set(key, srvname, expiry);
+
+ if (ret)
+ DEBUG(5, ("namecache_status_store: entry %s -> %s\n", key, srvname ));
+ else
+ DEBUG(5, ("namecache_status_store: entry %s store failed.\n", key ));
+
+ SAFE_FREE(key);
+ return ret;
+}
+
+/* Fetch a name status record. */
+
+BOOL namecache_status_fetch(const char *keyname, int keyname_type,
+ int name_type, struct in_addr keyip, char *srvname_out)
+{
+ char *key = NULL;
+ char *value = NULL;
+ time_t timeout;
+
+ if (!gencache_init())
+ return False;
+
+ key = namecache_status_record_key(keyname, keyname_type, name_type, keyip);
+ if (!key)
+ return False;
+
+ if (!gencache_get(key, &value, &timeout)) {
+ DEBUG(5, ("namecache_status_fetch: no entry for %s found.\n", key));
+ gencache_del(key);
+ SAFE_FREE(key);
+ SAFE_FREE(value);
+ return False;
+ } else {
+ DEBUG(5, ("namecache_status_fetch: key %s -> %s\n", key, value ));
+ }
+
+ strlcpy(srvname_out, value, 16);
+ SAFE_FREE(key);
+ SAFE_FREE(value);
+ return True;
+}