filestore: respect g_disable_hashing

If g_disable_hashing is set, behave like libnss wasn't compiled
in.

src/util-file.c

@@ -181,8 +181,13 @@ void FileForceHashParseCfg(ConfNode *conf)
                 "found. Please use 'force-hash: [md5]' instead");
 
         if (ConfValIsTrue(force_md5)) {
-            FileForceMd5Enable();
-            SCLogInfo("forcing md5 calculation for logged files");
+            if (g_disable_hashing) {
+                SCLogInfo(
+                        "not forcing md5 calculation for logged files: hashing globally disabled");
+            } else {
+                FileForceMd5Enable();
+                SCLogInfo("forcing md5 calculation for logged files");
+            }
         }
     }
 
@@ -194,18 +199,33 @@ void FileForceHashParseCfg(ConfNode *conf)
 
         TAILQ_FOREACH(field, &forcehash_node->head, next) {
             if (strcasecmp("md5", field->val) == 0) {
-                FileForceMd5Enable();
-                SCLogConfig("forcing md5 calculation for logged or stored files");
+                if (g_disable_hashing) {
+                    SCLogInfo("not forcing md5 calculation for logged files: hashing globally "
+                              "disabled");
+                } else {
+                    FileForceMd5Enable();
+                    SCLogConfig("forcing md5 calculation for logged or stored files");
+                }
             }
 
             if (strcasecmp("sha1", field->val) == 0) {
-                FileForceSha1Enable();
-                SCLogConfig("forcing sha1 calculation for logged or stored files");
+                if (g_disable_hashing) {
+                    SCLogInfo("not forcing sha1 calculation for logged files: hashing globally "
+                              "disabled");
+                } else {
+                    FileForceSha1Enable();
+                    SCLogConfig("forcing sha1 calculation for logged or stored files");
+                }
             }
 
             if (strcasecmp("sha256", field->val) == 0) {
-                FileForceSha256Enable();
-                SCLogConfig("forcing sha256 calculation for logged or stored files");
+                if (g_disable_hashing) {
+                    SCLogInfo("not forcing sha256 calculation for logged files: hashing globally "
+                              "disabled");
+                } else {
+                    FileForceSha256Enable();
+                    SCLogConfig("forcing sha256 calculation for logged or stored files");
+                }
             }
         }
     }