Add proper per-file copyright notices/licenses and top-level license.

[bluesky.git] / nfs3 / nfsd.c

diff --git a/nfs3/nfsd.c b/nfs3/nfsd.c
index 55819e0..f723350 100644 (file)
--- a/nfs3/nfsd.c
+++ b/nfs3/nfsd.c
@@ -3,13 +3,36 @@
  * Copyright (C) 2009  The Regents of the University of California
  * Written by Michael Vrable <mvrable@cs.ucsd.edu>
  *
- * TODO: Licensing
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
  */
 
 /* Main entry point for an NFSv3 server which will proxy requests to a cloud
  * filesystem. */
 
 #include "mount_prot.h"
+#include "nfs3_prot.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <rpc/pmap_clnt.h>
@@ -26,28 +49,51 @@ void register_rpc();
 BlueSkyFS *fs;
 BlueSkyStore *store;
 
+/* A cookie value returned for uncommitted writes and verified by commits; this
+ * should be a unique value each time the server is started. */
+char nfsd_instance_verf_cookie[NFS3_WRITEVERFSIZE];
+
+static void shutdown_handler(int num)
+{
+    g_print("SIGINT caught, shutting down...\n");
+    g_print("Proxy statistics:\n");
+    bluesky_stats_dump_all();
+    exit(1);
+}
+
 int main(int argc, char *argv[])
 {
     int i;
+
+    signal(SIGPIPE, SIG_IGN);
+    signal(SIGINT, shutdown_handler);
+
     bluesky_init();
-    register_rpc();
+    g_set_prgname("nfsd");
+
+    const char *target = getenv("BLUESKY_TARGET");
+    if (target == NULL)
+        target = "s3";
 
-    bluesky_options.synchronous_stores = 1;
+    const char *key = getenv("BLUESKY_KEY");
+    if (key == NULL)
+        key = "";
 
-    store = bluesky_store_new("s3");
-    fs = bluesky_init_fs("export", store);
+    const char *profile_output = getenv("BLUESKY_PROFILE_OUT");
+    if (profile_output != NULL)
+        bluesky_profile_set_output(fopen(profile_output, "a"));
 
-    BlueSkyInode *root;
-    root = bluesky_get_inode(fs, BLUESKY_ROOT_INUM);
-    if (root == NULL) {
-        printf("Initializing fresh root inode...\n");
-        root = bluesky_new_inode(BLUESKY_ROOT_INUM, fs, BLUESKY_DIRECTORY);
-        root->nlink = 1;
-        root->mode = 0755;
-        bluesky_insert_inode(fs, root);
-    }
+    store = bluesky_store_new(target);
+    fs = bluesky_init_fs("export", store, key);
 
-    bluesky_debug_dump(fs);
+    const char *stats_output = getenv("BLUESKY_STATS_OUT");
+    if (stats_output != NULL)
+        bluesky_stats_run_periodic_dump(fopen(stats_output, "a"));
+
+    bluesky_crypt_random_bytes(nfsd_instance_verf_cookie,
+                               sizeof(nfsd_instance_verf_cookie));
+
+    register_rpc();
 
     svc_run();
     fprintf(stderr, "%s", "svc_run returned");