isisd: API: basic circuit config
Create isis_vty.c and start moving off CLI functions into that. These
then call newly-added "nice" API wrappers.
Patch contains significant work authored by Christian Franke.
[v2: removed stuff that crept in from the next patch]
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/isisd/isis_vty.c b/isisd/isis_vty.c
new file mode 100644
index 0000000..4b45df1
--- /dev/null
+++ b/isisd/isis_vty.c
@@ -0,0 +1,678 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_circuit.h
+ *
+ * Copyright (C) 2001,2002 Sampo Saaristo
+ * Tampere University of Technology
+ * Institute of Communications Engineering
+ * Copyright (C) 2016 David Lamparter, for NetDEF, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public Licenseas published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <zebra.h>
+#include <command.h>
+
+#include "isis_circuit.h"
+#include "isis_csm.h"
+#include "isis_misc.h"
+#include "isisd.h"
+
+static struct isis_circuit *
+isis_circuit_lookup (struct vty *vty)
+{
+ struct interface *ifp;
+ struct isis_circuit *circuit;
+
+ ifp = (struct interface *) vty->index;
+ if (!ifp)
+ {
+ vty_out (vty, "Invalid interface %s", VTY_NEWLINE);
+ return NULL;
+ }
+
+ circuit = circuit_scan_by_ifp (ifp);
+ if (!circuit)
+ {
+ vty_out (vty, "ISIS is not enabled on circuit %s%s",
+ ifp->name, VTY_NEWLINE);
+ return NULL;
+ }
+
+ return circuit;
+}
+
+DEFUN (ip_router_isis,
+ ip_router_isis_cmd,
+ "(ip|ipv6) router isis WORD",
+ "Interface Internet Protocol config commands\n"
+ "IP router interface commands\n"
+ "IS-IS Routing for IP\n"
+ "Routing process tag\n")
+{
+ struct interface *ifp;
+ struct isis_circuit *circuit;
+ struct isis_area *area;
+ const char *af = argv[0];
+ const char *area_tag = argv[1];
+
+ ifp = (struct interface *) vty->index;
+ assert (ifp);
+
+ /* Prevent more than one area per circuit */
+ circuit = circuit_scan_by_ifp (ifp);
+ if (circuit)
+ {
+ if (circuit->ip_router == 1)
+ {
+ if (strcmp (circuit->area->area_tag, area_tag))
+ {
+ vty_out (vty, "ISIS circuit is already defined on %s%s",
+ circuit->area->area_tag, VTY_NEWLINE);
+ return CMD_ERR_NOTHING_TODO;
+ }
+ return CMD_SUCCESS;
+ }
+ }
+
+ area = isis_area_lookup (area_tag);
+ if (!area)
+ area = isis_area_create (area_tag);
+
+ if (!circuit)
+ circuit = isis_circuit_create (area, ifp);
+
+ bool ip = circuit->ip_router, ipv6 = circuit->ipv6_router;
+ if (af[2] != '\0')
+ ipv6 = true;
+ else
+ ip = true;
+
+ isis_circuit_af_set (circuit, ip, ipv6);
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_ip_router_isis,
+ no_ip_router_isis_cmd,
+ "no (ip|ipv6) router isis WORD",
+ NO_STR
+ "Interface Internet Protocol config commands\n"
+ "IP router interface commands\n"
+ "IS-IS Routing for IP\n"
+ "Routing process tag\n")
+{
+ struct interface *ifp;
+ struct isis_area *area;
+ struct isis_circuit *circuit;
+ const char *af = argv[0];
+ const char *area_tag = argv[1];
+
+ ifp = (struct interface *) vty->index;
+ if (!ifp)
+ {
+ vty_out (vty, "Invalid interface %s", VTY_NEWLINE);
+ return CMD_ERR_NO_MATCH;
+ }
+
+ area = isis_area_lookup (area_tag);
+ if (!area)
+ {
+ vty_out (vty, "Can't find ISIS instance %s%s",
+ argv[0], VTY_NEWLINE);
+ return CMD_ERR_NO_MATCH;
+ }
+
+ circuit = circuit_lookup_by_ifp (ifp, area->circuit_list);
+ if (!circuit)
+ {
+ vty_out (vty, "ISIS is not enabled on circuit %s%s",
+ ifp->name, VTY_NEWLINE);
+ return CMD_ERR_NO_MATCH;
+ }
+
+ bool ip = circuit->ip_router, ipv6 = circuit->ipv6_router;
+ if (af[2] != '\0')
+ ipv6 = false;
+ else
+ ip = false;
+
+ isis_circuit_af_set (circuit, ip, ipv6);
+ return CMD_SUCCESS;
+}
+
+DEFUN (isis_passive,
+ isis_passive_cmd,
+ "isis passive",
+ "IS-IS commands\n"
+ "Configure the passive mode for interface\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ isis_circuit_passive_set (circuit, 1);
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_passive,
+ no_isis_passive_cmd,
+ "no isis passive",
+ NO_STR
+ "IS-IS commands\n"
+ "Configure the passive mode for interface\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ if (if_is_loopback (circuit->interface))
+ {
+ vty_out (vty, "Can't set no passive for loopback interface%s",
+ VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ isis_circuit_passive_set (circuit, 0);
+ return CMD_SUCCESS;
+}
+
+DEFUN (isis_circuit_type,
+ isis_circuit_type_cmd,
+ "isis circuit-type (level-1|level-1-2|level-2-only)",
+ "IS-IS commands\n"
+ "Configure circuit type for interface\n"
+ "Level-1 only adjacencies are formed\n"
+ "Level-1-2 adjacencies are formed\n"
+ "Level-2 only adjacencies are formed\n")
+{
+ int is_type;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ is_type = string2circuit_t (argv[0]);
+ if (!is_type)
+ {
+ vty_out (vty, "Unknown circuit-type %s", VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ if (circuit->state == C_STATE_UP &&
+ circuit->area->is_type != IS_LEVEL_1_AND_2 &&
+ circuit->area->is_type != is_type)
+ {
+ vty_out (vty, "Invalid circuit level for area %s.%s",
+ circuit->area->area_tag, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+ isis_circuit_is_type_set (circuit, is_type);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_circuit_type,
+ no_isis_circuit_type_cmd,
+ "no isis circuit-type (level-1|level-1-2|level-2-only)",
+ NO_STR
+ "IS-IS commands\n"
+ "Configure circuit type for interface\n"
+ "Level-1 only adjacencies are formed\n"
+ "Level-1-2 adjacencies are formed\n"
+ "Level-2 only adjacencies are formed\n")
+{
+ int is_type;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ /*
+ * Set the circuits level to its default value
+ */
+ if (circuit->state == C_STATE_UP)
+ is_type = circuit->area->is_type;
+ else
+ is_type = IS_LEVEL_1_AND_2;
+ isis_circuit_is_type_set (circuit, is_type);
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (isis_network,
+ isis_network_cmd,
+ "isis network point-to-point",
+ "IS-IS commands\n"
+ "Set network type\n"
+ "point-to-point network type\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ if (!isis_circuit_circ_type_set(circuit, CIRCUIT_T_P2P))
+ {
+ vty_out (vty, "isis network point-to-point "
+ "is valid only on broadcast interfaces%s",
+ VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_network,
+ no_isis_network_cmd,
+ "no isis network point-to-point",
+ NO_STR
+ "IS-IS commands\n"
+ "Set network type for circuit\n"
+ "point-to-point network type\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ if (!isis_circuit_circ_type_set(circuit, CIRCUIT_T_BROADCAST))
+ {
+ vty_out (vty, "isis network point-to-point "
+ "is valid only on broadcast interfaces%s",
+ VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (isis_priority,
+ isis_priority_cmd,
+ "isis priority <0-127>",
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Priority value\n")
+{
+ int prio;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ prio = atoi (argv[0]);
+ if (prio < MIN_PRIORITY || prio > MAX_PRIORITY)
+ {
+ vty_out (vty, "Invalid priority %d - should be <0-127>%s",
+ prio, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ circuit->priority[0] = prio;
+ circuit->priority[1] = prio;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_priority,
+ no_isis_priority_cmd,
+ "no isis priority",
+ NO_STR
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ circuit->priority[0] = DEFAULT_PRIORITY;
+ circuit->priority[1] = DEFAULT_PRIORITY;
+
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_isis_priority,
+ no_isis_priority_arg_cmd,
+ "no isis priority <0-127>",
+ NO_STR
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Priority value\n")
+
+DEFUN (isis_priority_l1,
+ isis_priority_l1_cmd,
+ "isis priority <0-127> level-1",
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Priority value\n"
+ "Specify priority for level-1 routing\n")
+{
+ int prio;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ prio = atoi (argv[0]);
+ if (prio < MIN_PRIORITY || prio > MAX_PRIORITY)
+ {
+ vty_out (vty, "Invalid priority %d - should be <0-127>%s",
+ prio, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ circuit->priority[0] = prio;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_priority_l1,
+ no_isis_priority_l1_cmd,
+ "no isis priority level-1",
+ NO_STR
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Specify priority for level-1 routing\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ circuit->priority[0] = DEFAULT_PRIORITY;
+
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_isis_priority_l1,
+ no_isis_priority_l1_arg_cmd,
+ "no isis priority <0-127> level-1",
+ NO_STR
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Priority value\n"
+ "Specify priority for level-1 routing\n")
+
+DEFUN (isis_priority_l2,
+ isis_priority_l2_cmd,
+ "isis priority <0-127> level-2",
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Priority value\n"
+ "Specify priority for level-2 routing\n")
+{
+ int prio;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ prio = atoi (argv[0]);
+ if (prio < MIN_PRIORITY || prio > MAX_PRIORITY)
+ {
+ vty_out (vty, "Invalid priority %d - should be <0-127>%s",
+ prio, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ circuit->priority[1] = prio;
+
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_priority_l2,
+ no_isis_priority_l2_cmd,
+ "no isis priority level-2",
+ NO_STR
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Specify priority for level-2 routing\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ circuit->priority[1] = DEFAULT_PRIORITY;
+
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_isis_priority_l2,
+ no_isis_priority_l2_arg_cmd,
+ "no isis priority <0-127> level-2",
+ NO_STR
+ "IS-IS commands\n"
+ "Set priority for Designated Router election\n"
+ "Priority value\n"
+ "Specify priority for level-2 routing\n")
+
+/* Metric command */
+DEFUN (isis_metric,
+ isis_metric_cmd,
+ "isis metric <0-16777215>",
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Default metric value\n")
+{
+ int met;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ met = atoi (argv[0]);
+
+ /* RFC3787 section 5.1 */
+ if (circuit->area && circuit->area->oldmetric == 1 &&
+ met > MAX_NARROW_LINK_METRIC)
+ {
+ vty_out (vty, "Invalid metric %d - should be <0-63> "
+ "when narrow metric type enabled%s",
+ met, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ /* RFC4444 */
+ if (circuit->area && circuit->area->newmetric == 1 &&
+ met > MAX_WIDE_LINK_METRIC)
+ {
+ vty_out (vty, "Invalid metric %d - should be <0-16777215> "
+ "when wide metric type enabled%s",
+ met, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ isis_circuit_metric_set (circuit, IS_LEVEL_1, met);
+ isis_circuit_metric_set (circuit, IS_LEVEL_2, met);
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_metric,
+ no_isis_metric_cmd,
+ "no isis metric",
+ NO_STR
+ "IS-IS commands\n"
+ "Set default metric for circuit\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ isis_circuit_metric_set (circuit, IS_LEVEL_1, DEFAULT_CIRCUIT_METRIC);
+ isis_circuit_metric_set (circuit, IS_LEVEL_2, DEFAULT_CIRCUIT_METRIC);
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_isis_metric,
+ no_isis_metric_arg_cmd,
+ "no isis metric <0-16777215>",
+ NO_STR
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Default metric value\n")
+
+DEFUN (isis_metric_l1,
+ isis_metric_l1_cmd,
+ "isis metric <0-16777215> level-1",
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Default metric value\n"
+ "Specify metric for level-1 routing\n")
+{
+ int met;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ met = atoi (argv[0]);
+
+ /* RFC3787 section 5.1 */
+ if (circuit->area && circuit->area->oldmetric == 1 &&
+ met > MAX_NARROW_LINK_METRIC)
+ {
+ vty_out (vty, "Invalid metric %d - should be <0-63> "
+ "when narrow metric type enabled%s",
+ met, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ /* RFC4444 */
+ if (circuit->area && circuit->area->newmetric == 1 &&
+ met > MAX_WIDE_LINK_METRIC)
+ {
+ vty_out (vty, "Invalid metric %d - should be <0-16777215> "
+ "when wide metric type enabled%s",
+ met, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ isis_circuit_metric_set (circuit, IS_LEVEL_1, met);
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_metric_l1,
+ no_isis_metric_l1_cmd,
+ "no isis metric level-1",
+ NO_STR
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Specify metric for level-1 routing\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ isis_circuit_metric_set (circuit, IS_LEVEL_1, DEFAULT_CIRCUIT_METRIC);
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_isis_metric_l1,
+ no_isis_metric_l1_arg_cmd,
+ "no isis metric <0-16777215> level-1",
+ NO_STR
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Default metric value\n"
+ "Specify metric for level-1 routing\n")
+
+DEFUN (isis_metric_l2,
+ isis_metric_l2_cmd,
+ "isis metric <0-16777215> level-2",
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Default metric value\n"
+ "Specify metric for level-2 routing\n")
+{
+ int met;
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ met = atoi (argv[0]);
+
+ /* RFC3787 section 5.1 */
+ if (circuit->area && circuit->area->oldmetric == 1 &&
+ met > MAX_NARROW_LINK_METRIC)
+ {
+ vty_out (vty, "Invalid metric %d - should be <0-63> "
+ "when narrow metric type enabled%s",
+ met, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ /* RFC4444 */
+ if (circuit->area && circuit->area->newmetric == 1 &&
+ met > MAX_WIDE_LINK_METRIC)
+ {
+ vty_out (vty, "Invalid metric %d - should be <0-16777215> "
+ "when wide metric type enabled%s",
+ met, VTY_NEWLINE);
+ return CMD_ERR_AMBIGUOUS;
+ }
+
+ isis_circuit_metric_set (circuit, IS_LEVEL_2, met);
+ return CMD_SUCCESS;
+}
+
+DEFUN (no_isis_metric_l2,
+ no_isis_metric_l2_cmd,
+ "no isis metric level-2",
+ NO_STR
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Specify metric for level-2 routing\n")
+{
+ struct isis_circuit *circuit = isis_circuit_lookup (vty);
+ if (!circuit)
+ return CMD_ERR_NO_MATCH;
+
+ isis_circuit_metric_set (circuit, IS_LEVEL_2, DEFAULT_CIRCUIT_METRIC);
+ return CMD_SUCCESS;
+}
+
+ALIAS (no_isis_metric_l2,
+ no_isis_metric_l2_arg_cmd,
+ "no isis metric <0-16777215> level-2",
+ NO_STR
+ "IS-IS commands\n"
+ "Set default metric for circuit\n"
+ "Default metric value\n"
+ "Specify metric for level-2 routing\n")
+/* end of metrics */
+
+void
+isis_vty_init (void)
+{
+ install_element (INTERFACE_NODE, &ip_router_isis_cmd);
+ install_element (INTERFACE_NODE, &no_ip_router_isis_cmd);
+
+ install_element (INTERFACE_NODE, &isis_passive_cmd);
+ install_element (INTERFACE_NODE, &no_isis_passive_cmd);
+
+ install_element (INTERFACE_NODE, &isis_circuit_type_cmd);
+ install_element (INTERFACE_NODE, &no_isis_circuit_type_cmd);
+
+ install_element (INTERFACE_NODE, &isis_network_cmd);
+ install_element (INTERFACE_NODE, &no_isis_network_cmd);
+
+ install_element (INTERFACE_NODE, &isis_priority_cmd);
+ install_element (INTERFACE_NODE, &no_isis_priority_cmd);
+ install_element (INTERFACE_NODE, &no_isis_priority_arg_cmd);
+ install_element (INTERFACE_NODE, &isis_priority_l1_cmd);
+ install_element (INTERFACE_NODE, &no_isis_priority_l1_cmd);
+ install_element (INTERFACE_NODE, &no_isis_priority_l1_arg_cmd);
+ install_element (INTERFACE_NODE, &isis_priority_l2_cmd);
+ install_element (INTERFACE_NODE, &no_isis_priority_l2_cmd);
+ install_element (INTERFACE_NODE, &no_isis_priority_l2_arg_cmd);
+
+ install_element (INTERFACE_NODE, &isis_metric_cmd);
+ install_element (INTERFACE_NODE, &no_isis_metric_cmd);
+ install_element (INTERFACE_NODE, &no_isis_metric_arg_cmd);
+ install_element (INTERFACE_NODE, &isis_metric_l1_cmd);
+ install_element (INTERFACE_NODE, &no_isis_metric_l1_cmd);
+ install_element (INTERFACE_NODE, &no_isis_metric_l1_arg_cmd);
+ install_element (INTERFACE_NODE, &isis_metric_l2_cmd);
+ install_element (INTERFACE_NODE, &no_isis_metric_l2_cmd);
+ install_element (INTERFACE_NODE, &no_isis_metric_l2_arg_cmd);
+}