file: fix storing parallel files

When looping available files 'flags' misuse would lead to all files
being closed after the first close.

This patch separates per file and per call flags.

src/output-filedata.c

@@ -141,7 +141,7 @@ static TmEcode OutputFiledataLog(ThreadVars *tv, Packet *p, void *thread_data)
     BUG_ON(logger != NULL && store == NULL);
     BUG_ON(logger == NULL && store == NULL);
 
-    uint8_t flags = 0;
+    uint8_t call_flags = 0;
     Flow * const f = p->flow;
 
     /* no flow, no files */
@@ -150,9 +150,9 @@ static TmEcode OutputFiledataLog(ThreadVars *tv, Packet *p, void *thread_data)
     }
 
     if (p->flowflags & FLOW_PKT_TOCLIENT)
-        flags |= STREAM_TOCLIENT;
+        call_flags |= STREAM_TOCLIENT;
     else
-        flags |= STREAM_TOSERVER;
+        call_flags |= STREAM_TOSERVER;
 
     int file_close = (p->flags & PKT_PSEUDO_STREAM_END) ? 1 : 0;
     int file_trunc = 0;
@@ -160,11 +160,12 @@ static TmEcode OutputFiledataLog(ThreadVars *tv, Packet *p, void *thread_data)
     file_trunc = StreamTcpReassembleDepthReached(p);
 
     FileContainer *ffc = AppLayerParserGetFiles(p->proto, f->alproto,
-                                                f->alstate, flags);
+                                                f->alstate, call_flags);
     SCLogDebug("ffc %p", ffc);
     if (ffc != NULL) {
         File *ff;
         for (ff = ffc->head; ff != NULL; ff = ff->next) {
+            uint8_t file_flags = call_flags;
 #ifdef HAVE_MAGIC
             if (FileForceMagic() && ff->magic == NULL) {
                 FilemagicGlobalLookup(ff);
@@ -196,7 +197,7 @@ static TmEcode OutputFiledataLog(ThreadVars *tv, Packet *p, void *thread_data)
             if (ff->file_store_id == 0) {
                 /* new file */
                 ff->file_store_id = SC_ATOMIC_ADD(g_file_store_id, 1);
-                flags |= OUTPUT_FILEDATA_FLAG_OPEN;
+                file_flags |= OUTPUT_FILEDATA_FLAG_OPEN;
             } else {
                 /* existing file */
             }
@@ -209,7 +210,7 @@ static TmEcode OutputFiledataLog(ThreadVars *tv, Packet *p, void *thread_data)
 
             /* tell the logger we're closing up */
             if (ff->state >= FILE_STATE_CLOSED)
-                flags |= OUTPUT_FILEDATA_FLAG_CLOSE;
+                file_flags |= OUTPUT_FILEDATA_FLAG_CLOSE;
 
             /* do the actual logging */
             const uint8_t *data = NULL;
@@ -219,12 +220,12 @@ static TmEcode OutputFiledataLog(ThreadVars *tv, Packet *p, void *thread_data)
                     &data, &data_len,
                     ff->content_stored);
 
-            int file_logged = CallLoggers(tv, store, p, ff, data, data_len, flags);
+            int file_logged = CallLoggers(tv, store, p, ff, data, data_len, file_flags);
             if (file_logged) {
                 ff->content_stored += data_len;
 
                 /* all done */
-                if (flags & OUTPUT_FILEDATA_FLAG_CLOSE) {
+                if (file_flags & OUTPUT_FILEDATA_FLAG_CLOSE) {
                     ff->flags |= FILE_STORED;
                 }
             }