[ovs-dev] [PATCH] ovs-vsctl: Add "show" command for printing an overview of configuration.
Ben Pfaff
blp at nicira.com
Tue May 3 22:12:51 UTC 2011
---
ChangeLog | 2 +
utilities/ovs-vsctl.8.in | 3 +
utilities/ovs-vsctl.c | 182 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 187 insertions(+), 0 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index bd0c40d..4a96651 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,8 @@ post v1.1.0
------------------------
- The new "-s" option for "ovs-dpctl show" prints packet and byte
counters for each port.
+ - ovs-vsctl:
+ - New "show" command to print an overview of configuration.
- Feature removals:
- Dropped support for "tun_id_from_cookie" OpenFlow extension.
(Use the extensible match extensions instead.)
diff --git a/utilities/ovs-vsctl.8.in b/utilities/ovs-vsctl.8.in
index 0b3e164..07d847f 100644
--- a/utilities/ovs-vsctl.8.in
+++ b/utilities/ovs-vsctl.8.in
@@ -153,6 +153,9 @@ Any successful \fBovs\-vsctl\fR command automatically initializes the
Open vSwitch database if it is empty. This command is provided to
initialize the database without executing any other command.
.
+.IP "\fBshow\fR"
+Prints a brief overview of the database contents.
+.
.IP "\fBemer\-reset\fR"
Reset the configuration into a clean state. It deconfigures OpenFlow
controllers, OVSDB servers, and SSL, and deletes port mirroring,
diff --git a/utilities/ovs-vsctl.c b/utilities/ovs-vsctl.c
index 2c1ba6d..2a0abb8 100644
--- a/utilities/ovs-vsctl.c
+++ b/utilities/ovs-vsctl.c
@@ -479,6 +479,7 @@ usage: %s [OPTIONS] COMMAND [ARG...]\n\
\n\
Open vSwitch commands:\n\
init initialize database, if not yet initialized\n\
+ show print overview of database contents\n\
emer-reset reset configuration to clean state\n\
\n\
Bridge commands:\n\
@@ -1007,6 +1008,186 @@ cmd_init(struct vsctl_context *ctx OVS_UNUSED)
{
}
+struct cmd_show_table {
+ const struct ovsdb_idl_table_class *table;
+ const struct ovsdb_idl_column *name_column;
+ const struct ovsdb_idl_column *columns[3];
+ bool recurse;
+};
+
+static struct cmd_show_table cmd_show_tables[] = {
+ {&ovsrec_table_open_vswitch,
+ NULL,
+ {&ovsrec_open_vswitch_col_manager_options,
+ &ovsrec_open_vswitch_col_bridges,
+ &ovsrec_open_vswitch_col_ovs_version},
+ false},
+
+ {&ovsrec_table_bridge,
+ &ovsrec_bridge_col_name,
+ {&ovsrec_bridge_col_controller,
+ &ovsrec_bridge_col_fail_mode,
+ &ovsrec_bridge_col_ports},
+ false},
+
+ {&ovsrec_table_port,
+ &ovsrec_port_col_name,
+ {&ovsrec_port_col_tag,
+ &ovsrec_port_col_trunks,
+ &ovsrec_port_col_interfaces},
+ false},
+
+ {&ovsrec_table_interface,
+ &ovsrec_interface_col_name,
+ {&ovsrec_interface_col_type,
+ &ovsrec_interface_col_options,
+ NULL},
+ false},
+
+ {&ovsrec_table_controller,
+ &ovsrec_controller_col_target,
+ {&ovsrec_controller_col_is_connected,
+ NULL,
+ NULL},
+ false},
+
+ {&ovsrec_table_manager,
+ &ovsrec_manager_col_target,
+ {&ovsrec_manager_col_is_connected,
+ NULL,
+ NULL},
+ false},
+};
+
+static void
+pre_cmd_show(struct vsctl_context *ctx)
+{
+ struct cmd_show_table *show;
+
+ for (show = cmd_show_tables;
+ show < &cmd_show_tables[ARRAY_SIZE(cmd_show_tables)];
+ show++) {
+ size_t i;
+
+ ovsdb_idl_add_table(ctx->idl, show->table);
+ if (show->name_column) {
+ ovsdb_idl_add_column(ctx->idl, show->name_column);
+ }
+ for (i = 0; i < ARRAY_SIZE(show->columns); i++) {
+ const struct ovsdb_idl_column *column = show->columns[i];
+ if (column) {
+ ovsdb_idl_add_column(ctx->idl, column);
+ }
+ }
+ }
+}
+
+static struct cmd_show_table *
+cmd_show_find_table_by_row(const struct ovsdb_idl_row *row)
+{
+ struct cmd_show_table *show;
+
+ for (show = cmd_show_tables;
+ show < &cmd_show_tables[ARRAY_SIZE(cmd_show_tables)];
+ show++) {
+ if (show->table == row->table->class) {
+ return show;
+ }
+ }
+ return NULL;
+}
+
+static struct cmd_show_table *
+cmd_show_find_table_by_name(const char *name)
+{
+ struct cmd_show_table *show;
+
+ for (show = cmd_show_tables;
+ show < &cmd_show_tables[ARRAY_SIZE(cmd_show_tables)];
+ show++) {
+ if (!strcmp(show->table->name, name)) {
+ return show;
+ }
+ }
+ return NULL;
+}
+
+static void
+cmd_show_row(struct vsctl_context *ctx, const struct ovsdb_idl_row *row,
+ int level)
+{
+ struct cmd_show_table *show = cmd_show_find_table_by_row(row);
+ size_t i;
+
+ ds_put_char_multiple(&ctx->output, ' ', level * 4);
+ ds_put_format(&ctx->output, "%s ", show->table->name);
+ if (show && show->name_column) {
+ const struct ovsdb_datum *datum;
+
+ datum = ovsdb_idl_read(row, show->name_column);
+ ovsdb_datum_to_string(datum, &show->name_column->type, &ctx->output);
+ } else {
+ ds_put_format(&ctx->output, UUID_FMT, UUID_ARGS(&row->uuid));
+ }
+ ds_put_char(&ctx->output, '\n');
+
+ if (!show || show->recurse) {
+ return;
+ }
+
+ show->recurse = true;
+ for (i = 0; i < ARRAY_SIZE(show->columns); i++) {
+ const struct ovsdb_idl_column *column = show->columns[i];
+ const struct ovsdb_datum *datum;
+
+ if (!column) {
+ break;
+ }
+
+ datum = ovsdb_idl_read(row, column);
+ if (column->type.key.type == OVSDB_TYPE_UUID &&
+ column->type.key.u.uuid.refTableName) {
+ struct cmd_show_table *ref_show;
+ size_t j;
+
+ ref_show = cmd_show_find_table_by_name(
+ column->type.key.u.uuid.refTableName);
+ if (ref_show) {
+ for (j = 0; j < datum->n; j++) {
+ const struct ovsdb_idl_row *ref_row;
+
+ ref_row = ovsdb_idl_get_row_for_uuid(ctx->idl,
+ ref_show->table,
+ &datum->keys[j].uuid);
+ if (ref_row) {
+ cmd_show_row(ctx, ref_row, level + 1);
+ }
+ }
+ continue;
+ }
+ }
+
+ if (!ovsdb_datum_is_default(datum, &column->type)) {
+ ds_put_char_multiple(&ctx->output, ' ', (level + 1) * 4);
+ ds_put_format(&ctx->output, "%s: ", column->name);
+ ovsdb_datum_to_string(datum, &column->type, &ctx->output);
+ ds_put_char(&ctx->output, '\n');
+ }
+ }
+ show->recurse = false;
+}
+
+static void
+cmd_show(struct vsctl_context *ctx)
+{
+ const struct ovsdb_idl_row *row;
+
+ for (row = ovsdb_idl_first_row(ctx->idl, cmd_show_tables[0].table);
+ row; row = ovsdb_idl_next_row(row)) {
+ cmd_show_row(ctx, row, 0);
+ }
+}
+
static void
pre_cmd_emer_reset(struct vsctl_context *ctx)
{
@@ -3558,6 +3739,7 @@ try_again:
static const struct vsctl_command_syntax all_commands[] = {
/* Open vSwitch commands. */
{"init", 0, 0, NULL, cmd_init, NULL, "", RW},
+ {"show", 0, 0, pre_cmd_show, cmd_show, NULL, "", RO},
/* Bridge commands. */
{"add-br", 1, 3, pre_get_info, cmd_add_br, NULL, "--may-exist", RW},
--
1.7.4.4
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