Adding upstream version 8.4.4.upstream/8.4.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 181 insertions, 0 deletions

diff --git a/isisd/isis_constants.h b/isisd/isis_constants.h
new file mode 100644
index 0000000..3d6a20e
--- /dev/null
+++ b/isisd/isis_constants.h
@@ -0,0 +1,181 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_constants.h
+ *
+ * Copyright (C) 2001,2002   Sampo Saaristo
+ *                           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)
+ * 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; 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
+#define ISIS_CONSTANTS_H
+
+/*
+ * Architectural constant values from p. 35 of ISO/IEC 10589
+ */
+
+#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 ISO9542_ESIS			0x82
+#define ISO10589_ISIS			0x83
+
+/*
+ * implementation specific jitter values
+ */
+
+#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
+ * RFC 4444
+ */
+#define MAX_AGE                       1200
+#define ZERO_AGE_LIFETIME             60
+#define MIN_LSP_LIFETIME              350
+#define MAX_LSP_LIFETIME              65535
+#define DEFAULT_LSP_LIFETIME          1200
+
+#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 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
+
+/* 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 ISIS_OK       0
+#define ISIS_WARNING  1
+#define ISIS_ERROR    2
+#define ISIS_CRITICAL 3
+
+/*
+ * IS-IS Circuit Types
+ */
+
+#define IS_LEVEL_1       1
+#define IS_LEVEL_2       2
+#define IS_LEVEL_1_AND_2 3
+
+#define SNPA_ADDRSTRLEN 18
+#define ISIS_SYS_ID_LEN  6
+#define ISIS_NSEL_LEN    1
+#define SYSID_STRLEN    24
+
+/*
+ * LSP bit masks
+ */
+#define LSPBIT_P   0x80
+#define LSPBIT_ATT 0x08 /* only use the Default ATT bit */
+#define LSPBIT_OL  0x04
+#define LSPBIT_IST 0x03
+
+/*
+ * LSP bit masking macros
+ * taken from tcpdumps
+ * print-isoclns.c
+ */
+
+#define ISIS_MASK_LSP_OL_BIT(x)            ((x)&0x4)
+#define ISIS_MASK_LSP_IS_L1_BIT(x)         ((x)&0x1)
+#define ISIS_MASK_LSP_IS_L2_BIT(x)         ((x)&0x2)
+#define ISIS_MASK_LSP_PARTITION_BIT(x)     ((x)&0x80)
+#define ISIS_MASK_LSP_ATT_BITS(x)          ((x)&0x78)
+#define ISIS_MASK_LSP_ATT_ERROR_BIT(x)     ((x)&0x40)
+#define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x)   ((x)&0x20)
+#define ISIS_MASK_LSP_ATT_DELAY_BIT(x)     ((x)&0x10)
+
+#define LLC_LEN 3
+
+/* we need to be aware of the fact we are using ISO sized
+ * packets, using isomtu = mtu - LLC_LEN
+ */
+#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 */