ovs-vsctl: reconnect to the database if connection was dropped

[sliver-openvswitch.git] / utilities / ovs-vsctl.c

diff --git a/utilities/ovs-vsctl.c b/utilities/ovs-vsctl.c
index 2d8c7c7..c563eee 100644 (file)
--- a/utilities/ovs-vsctl.c
+++ b/utilities/ovs-vsctl.c
@@ -128,7 +128,7 @@ static bool retry;
 static struct table_style table_style = TABLE_STYLE_DEFAULT;
 
 /* All supported commands. */
-static const struct vsctl_command_syntax all_commands[];
+static const struct vsctl_command_syntax *get_all_commands(void);
 
 /* The IDL we're using and the current transaction, if any.
  * This is for use by vsctl_exit() only, to allow it to clean up.
@@ -302,7 +302,7 @@ parse_options(int argc, char *argv[], struct shash *local_options)
     options = xmemdup(global_long_options, sizeof global_long_options);
     allocated_options = ARRAY_SIZE(global_long_options);
     n_options = n_global_long_options;
-    for (p = all_commands; p->name; p++) {
+    for (p = get_all_commands(); p->name; p++) {
         if (p->options[0]) {
             char *save_ptr = NULL;
             char *name;
@@ -568,7 +568,7 @@ find_command(const char *name)
     if (shash_is_empty(&commands)) {
         const struct vsctl_command_syntax *p;
 
-        for (p = all_commands; p->name; p++) {
+        for (p = get_all_commands(); p->name; p++) {
             shash_add_assert(&commands, p->name, p);
         }
     }
@@ -2021,9 +2021,12 @@ cmd_del_port(struct vsctl_context *ctx)
 
     vsctl_context_populate_cache(ctx);
     if (find_bridge(ctx, target, false)) {
-        vsctl_fatal("cannot delete port %s because it is the local port "
-                    "for bridge %s (deleting this port requires deleting "
-                    "the entire bridge)", target, target);
+        if (must_exist) {
+            vsctl_fatal("cannot delete port %s because it is the local port "
+                        "for bridge %s (deleting this port requires deleting "
+                        "the entire bridge)", target, target);
+        }
+        port = NULL;
     } else if (!with_iface) {
         port = find_port(ctx, target, must_exist);
     } else {
@@ -3349,6 +3352,7 @@ set_column(const struct vsctl_table_class *table,
 
         ovsdb_datum_union(&datum, ovsdb_idl_read(row, column),
                           &column->type, false);
+        ovsdb_idl_txn_verify(row, column);
         ovsdb_idl_txn_write(row, column, &datum);
     } else {
         struct ovsdb_datum datum;
@@ -3627,7 +3631,7 @@ post_create(struct vsctl_context *ctx)
     struct uuid dummy;
 
     if (!uuid_from_string(&dummy, ds_cstr(&ctx->output))) {
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
     real = ovsdb_idl_txn_get_insert_uuid(ctx->txn, &dummy);
     if (real) {
@@ -3745,7 +3749,7 @@ evaluate_relop(const struct ovsdb_datum *a, const struct ovsdb_datum *b,
         return ovsdb_datum_includes_all(b, a, type);
 
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
 }
 
@@ -4055,7 +4059,7 @@ do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,
     switch (status) {
     case TXN_UNCOMMITTED:
     case TXN_INCOMPLETE:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
 
     case TXN_ABORTED:
         /* Should not happen--we never call ovsdb_idl_txn_abort(). */
@@ -4076,7 +4080,7 @@ do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,
         vsctl_fatal("database not locked");
 
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
     free(error);
 
@@ -4119,6 +4123,11 @@ do_vsctl(const char *args, struct vsctl_command *commands, size_t n_commands,
     free(commands);
 
     if (wait_for_reload && status != TXN_UNCHANGED) {
+        /* Even, if --retry flag was not specified, ovs-vsctl still
+         * has to retry to establish OVSDB connection, if wait_for_reload
+         * was set.  Otherwise, ovs-vsctl would end up waiting forever
+         * until cur_cfg would be updated. */
+        ovsdb_idl_enable_reconnect(idl);
         for (;;) {
             ovsdb_idl_run(idl);
             OVSREC_OPEN_VSWITCH_FOR_EACH (ovs, idl) {
@@ -4225,3 +4234,7 @@ static const struct vsctl_command_syntax all_commands[] = {
     {NULL, 0, 0, NULL, NULL, NULL, NULL, RO},
 };
 
+static const struct vsctl_command_syntax *get_all_commands(void)
+{
+    return all_commands;
+}