*/
#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
#include <vnet/mpls/mpls.h>
#include <vnet/fib/mpls_fib.h>
#include <vnet/fib/ip4_fib.h>
#include <vnet/adj/adj_midchain.h>
#include <vnet/dpo/classify_dpo.h>
+typedef struct
+{
+ mpls_interface_state_change_function_t *function;
+ uword function_opaque;
+} mpls_interface_state_change_callback_t;
+
+/** Functions to call when interface becomes MPLS enabled/disabled. */
+static mpls_interface_state_change_callback_t *state_change_callbacks;
u8
mpls_sw_interface_is_enabled (u32 sw_if_index)
{
mpls_main_t * mm = &mpls_main;
- if (vec_len(mm->mpls_enabled_by_sw_if_index) < sw_if_index)
+ if (vec_len(mm->mpls_enabled_by_sw_if_index) <= sw_if_index)
return (0);
return (mm->mpls_enabled_by_sw_if_index[sw_if_index]);
}
void
-mpls_sw_interface_enable_disable (mpls_main_t * mm,
- u32 sw_if_index,
- u8 is_enable)
+mpls_interface_state_change_add_callback (
+ mpls_interface_state_change_function_t *function, uword opaque)
+{
+ mpls_interface_state_change_callback_t cb = {
+ .function = function,
+ .function_opaque = opaque,
+ };
+ vec_add1 (state_change_callbacks, cb);
+}
+
+int
+mpls_sw_interface_enable_disable (mpls_main_t *mm, u32 sw_if_index,
+ u8 is_enable)
{
fib_node_index_t lfib_index;
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
vec_validate_init_empty (mm->mpls_enabled_by_sw_if_index, sw_if_index, 0);
+ lfib_index = fib_table_find(FIB_PROTOCOL_MPLS,
+ MPLS_FIB_DEFAULT_TABLE_ID);
+
+ if (~0 == lfib_index)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
/*
* enable/disable only on the 1<->0 transition
*/
if (is_enable)
{
if (1 != ++mm->mpls_enabled_by_sw_if_index[sw_if_index])
- return;
+ return (0);
+
+ fib_table_lock (lfib_index, FIB_PROTOCOL_MPLS, FIB_SOURCE_INTERFACE);
- lfib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_MPLS,
- MPLS_FIB_DEFAULT_TABLE_ID);
- vec_validate(mm->fib_index_by_sw_if_index, 0);
+ vec_validate(mm->fib_index_by_sw_if_index, sw_if_index);
mm->fib_index_by_sw_if_index[sw_if_index] = lfib_index;
}
else
{
ASSERT(mm->mpls_enabled_by_sw_if_index[sw_if_index] > 0);
if (0 != --mm->mpls_enabled_by_sw_if_index[sw_if_index])
- return;
+ return (0);
- fib_table_unlock(mm->fib_index_by_sw_if_index[sw_if_index],
- FIB_PROTOCOL_MPLS);
+ fib_table_unlock (mm->fib_index_by_sw_if_index[sw_if_index],
+ FIB_PROTOCOL_MPLS, FIB_SOURCE_INTERFACE);
}
vnet_feature_enable_disable ("mpls-input", "mpls-not-enabled",
sw_if_index, !is_enable, 0, 0);
+ if (is_enable)
+ hi->l3_if_count++;
+ else if (hi->l3_if_count)
+ hi->l3_if_count--;
+
+ {
+ mpls_interface_state_change_callback_t *cb;
+ vec_foreach (cb, state_change_callbacks)
+ cb->function (mm, cb->function_opaque, sw_if_index, is_enable);
+ }
+
+ return (0);
}
static clib_error_t *
vnet_main_t * vnm = vnet_get_main();
clib_error_t * error = 0;
u32 sw_if_index, enable;
+ int rv;
sw_if_index = ~0;
goto done;
}
- mpls_sw_interface_enable_disable(&mpls_main, sw_if_index, enable);
+ rv = mpls_sw_interface_enable_disable (&mpls_main, sw_if_index, enable);
+
+ if (VNET_API_ERROR_NO_SUCH_FIB == rv)
+ error = clib_error_return (0, "default MPLS table must be created first");
done:
return error;
}
/*?
- * This command enables an interface to accpet MPLS packets
+ * This command enables an interface to accept MPLS packets
*
* @cliexpar
* @cliexstart{set interface mpls}
.function = mpls_interface_enable_disable,
.short_help = "Enable/Disable an interface for MPLS forwarding",
};
+
+static void
+show_mpls_one_interface (vnet_main_t *vnm, vlib_main_t *vm, u32 sw_if_index,
+ bool verbose)
+{
+ mpls_main_t *mm = &mpls_main;
+ u8 enabled;
+
+ enabled = mm->mpls_enabled_by_sw_if_index[sw_if_index];
+
+ if (enabled)
+ {
+ vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnm,
+ sw_if_index);
+ vlib_cli_output (vm, " MPLS enabled");
+ }
+ else if (verbose)
+ {
+ vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, vnm,
+ sw_if_index);
+ vlib_cli_output (vm, " MPLS disabled");
+ }
+}
+
+static walk_rc_t
+show_mpls_interface_walk (vnet_main_t *vnm, vnet_sw_interface_t *si, void *ctx)
+{
+ show_mpls_one_interface (vnm, ctx, si->sw_if_index, false);
+
+ return (WALK_CONTINUE);
+}
+
+static clib_error_t *
+show_mpls_interface (vlib_main_t *vm, unformat_input_t *input,
+ vlib_cli_command_t *cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index;
+
+ sw_if_index = ~0;
+
+ if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
+ ;
+
+ if (~0 == sw_if_index)
+ {
+ vnet_sw_interface_walk (vnm, show_mpls_interface_walk, vm);
+ }
+ else
+ {
+ show_mpls_one_interface (vnm, vm, sw_if_index, true);
+ }
+
+ return NULL;
+}
+
+/*?
+ * This command displays the MPLS forwarding state of an interface
+ *
+ * @cliexpar
+ * @cliexstart{show mpls interface}
+ * set mpls interface GigEthernet0/8/0
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND (show_mpls_interface_command, static) = {
+ .path = "show mpls interface",
+ .function = show_mpls_interface,
+ .short_help = "Show MPLS interface forwarding",
+};