/*
- * IS-IS Rout(e)ing protocol - isis_constants.h
+ * IS-IS Rout(e)ing protocol - isis_constants.h
*
* Copyright (C) 2001,2002 Sampo Saaristo
- * Tampere University of Technology
+ * Tampere University of Technology
* Institute of Communications Engineering
*
- * 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)
+ * 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
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef ISIS_CONSTANTS_H
/*
* Architectural constant values from p. 35 of ISO/IEC 10589
- */
+ */
-#define MAX_LINK_METRIC 63
-#define MAX_PATH_METRIC 1023
+#define MAX_NARROW_LINK_METRIC 63
+#define MAX_NARROW_PATH_METRIC 1023
+#define MAX_WIDE_LINK_METRIC 0x00FFFFFF /* RFC4444 */
+#define MAX_WIDE_PATH_METRIC 0xFE000000 /* RFC3787 */
#define ISO_SAP 0xFE
#define INTRADOMAIN_ROUTEING_SELECTOR 0
#define SEQUENCE_MODULUS 4294967296
-#define RECEIVE_LSP_BUFFER_SIZE 1492
+
+#define ISO9542_ESIS 0x82
+#define ISO10589_ISIS 0x83
/*
* implementation specific jitter values
*/
-#define IIH_JITTER 25 /* % */
-#define MAX_AGE_JITTER 5 /* % */
-#define MAX_LSP_GEN_JITTER 5 /* % */
-#define CSNP_JITTER 10 /* % */
-#define PSNP_JITTER 10 /* % */
+#define IIH_JITTER 10 /* % */
+#define MAX_AGE_JITTER 5 /* % */
+#define MAX_LSP_GEN_JITTER 5 /* % */
+#define CSNP_JITTER 10 /* % */
+#define PSNP_JITTER 10 /* % */
#define RANDOM_SPREAD 100000.0
+#define ISIS_LEVELS 2
+#define ISIS_LEVEL1 1
+#define ISIS_LEVEL2 2
+
/*
* Default values
- * ISO - 10589
- * Section 7.3.21 - Parameters
+ * ISO - 10589 Section 7.3.21 - Parameters
+ * RFC 4444
*/
#define MAX_AGE 1200
#define ZERO_AGE_LIFETIME 60
-#define MAX_LSP_GEN_INTERVAL 900
-#define MIN_LSP_GEN_INTERVAL 30
-#define MIN_LSP_TRANS_INTERVAL 5
-#define ISIS_MIN_LSP_LIFETIME 380
-#define CSNP_INTERVAL 10
-#define PSNP_INTERVAL 2
-#define ISIS_MAX_PATH_SPLITS 3
+#define MIN_LSP_LIFETIME 350
+#define MAX_LSP_LIFETIME 65535
+#define DEFAULT_LSP_LIFETIME 1200
-#define ISIS_LEVELS 2
-#define ISIS_LEVEL1 1
-#define ISIS_LEVEL2 2
+#define MIN_MAX_LSP_GEN_INTERVAL 1
+#define MAX_MAX_LSP_GEN_INTERVAL 65235
+#define DEFAULT_MAX_LSP_GEN_INTERVAL 900
+
+#define MIN_MIN_LSP_GEN_INTERVAL 1
+#define MAX_MIN_LSP_GEN_INTERVAL 120 /* RFC 4444 says 65535 */
+#define DEFAULT_MIN_LSP_GEN_INTERVAL 30
+
+#define MIN_LSP_RETRANS_INTERVAL 5 /* Seconds */
+
+#define TRIGGERED_IIH_DELAY 50 /* msec */
+
+#define MIN_CSNP_INTERVAL 1
+#define MAX_CSNP_INTERVAL 600
+#define DEFAULT_CSNP_INTERVAL 10
-#define HELLO_INTERVAL 1
-#define HELLO_MINIMAL HELLO_INTERVAL
-#define HELLO_MULTIPLIER 3
+#define MIN_PSNP_INTERVAL 1
+#define MAX_PSNP_INTERVAL 120
+#define DEFAULT_PSNP_INTERVAL 2
+
+#define MIN_HELLO_INTERVAL 1
+#define MAX_HELLO_INTERVAL 600
+#define DEFAULT_HELLO_INTERVAL 3
+
+#define MIN_HELLO_MULTIPLIER 2
+#define MAX_HELLO_MULTIPLIER 100
+#define DEFAULT_HELLO_MULTIPLIER 10
+
+#define MIN_PRIORITY 0
+#define MAX_PRIORITY 127
#define DEFAULT_PRIORITY 64
-/* different vendors implement different values 5-10 on average */
-#define LSP_GEN_INTERVAL_DEFAULT 10
-#define LSP_INTERVAL 33 /* msecs */
-#define DEFAULT_CIRCUIT_METRICS 10
-#define METRICS_UNSUPPORTED 0x80
-#define PERIODIC_SPF_INTERVAL 60 /* at the top of my head */
-#define MINIMUM_SPF_INTERVAL 5 /* .. same here */
+
+/* min and max metric varies by new vs old metric types */
+#define DEFAULT_CIRCUIT_METRIC 10
+
+#define METRICS_UNSUPPORTED 0x80
+
+#define MINIMUM_SPF_INTERVAL 1
+
+#define ISIS_MAX_PATH_SPLITS 64
/*
* NLPID values
*/
#define NLPID_IP 204
#define NLPID_IPV6 142
+#define NLPID_SNAP 128
+#define NLPID_CLNP 129
+#define NLPID_ESIS 130
/*
* Return values for functions
#define SNPA_ADDRSTRLEN 18
#define ISIS_SYS_ID_LEN 6
+#define ISIS_NSEL_LEN 1
#define SYSID_STRLEN 24
/*
/* we need to be aware of the fact we are using ISO sized
* packets, using isomtu = mtu - LLC_LEN
*/
-#define ISO_MTU(C) \
- (C->circ_type==CIRCUIT_T_BROADCAST) ? \
- (C->interface->mtu - LLC_LEN) : (C->interface->mtu)
-
-#ifndef ETH_ALEN
-#define ETH_ALEN 6
-#endif
-
-#endif /* ISIS_CONSTANTS_H */
-
-
-
-
-
+#define ISO_MTU(C) \
+ ((if_is_broadcast((C)->interface)) ? (C->interface->mtu - LLC_LEN) \
+ : (C->interface->mtu))
+#define MAX_LLC_LEN 0x5ff
+#define ETHERTYPE_EXT_LLC 0x8870
+static inline uint16_t isis_ethertype(size_t len)
+{
+ if (len > MAX_LLC_LEN)
+ return ETHERTYPE_EXT_LLC;
+ return len;
+}
+#endif /* ISIS_CONSTANTS_H */
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