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acddc0ed3c
Done with a combination of regex'ing and banging my head against a wall. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
110 lines
5.0 KiB
C
110 lines
5.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* PIM for Quagga
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* Copyright (C) 2008 Everton da Silva Marques
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*/
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#ifndef PIM_TLV_H
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#define PIM_TLV_H
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#include <zebra.h>
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#include "config.h"
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#include "if.h"
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#include "linklist.h"
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#define PIM_MSG_OPTION_TYPE_HOLDTIME (1)
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#define PIM_MSG_OPTION_TYPE_LAN_PRUNE_DELAY (2)
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#define PIM_MSG_OPTION_TYPE_DR_PRIORITY (19)
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#define PIM_MSG_OPTION_TYPE_GENERATION_ID (20)
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#define PIM_MSG_OPTION_TYPE_DM_STATE_REFRESH (21)
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#define PIM_MSG_OPTION_TYPE_ADDRESS_LIST (24)
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typedef uint32_t pim_hello_options;
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#define PIM_OPTION_MASK_HOLDTIME (1 << 0) /* recv holdtime */
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#define PIM_OPTION_MASK_LAN_PRUNE_DELAY (1 << 1) /* recv lan_prune_delay */
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#define PIM_OPTION_MASK_DR_PRIORITY (1 << 2) /* recv dr_priority */
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#define PIM_OPTION_MASK_GENERATION_ID (1 << 3) /* recv generation_id */
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#define PIM_OPTION_MASK_ADDRESS_LIST (1 << 4) /* recv secondary address list */
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#define PIM_OPTION_MASK_CAN_DISABLE_JOIN_SUPPRESSION (1 << 5) /* T bit value (valid if recv lan_prune_delay) */
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#define PIM_RPT_BIT_MASK (1 << 0)
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#define PIM_WILDCARD_BIT_MASK (1 << 1)
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#define PIM_OPTION_SET(options, option_mask) ((options) |= (option_mask))
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#define PIM_OPTION_UNSET(options, option_mask) ((options) &= ~(option_mask))
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#define PIM_OPTION_IS_SET(options, option_mask) ((options) & (option_mask))
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#define PIM_TLV_GET_UINT16(buf) \
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({ \
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uint16_t _tmp; \
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memcpy(&_tmp, (buf), sizeof(uint16_t)); \
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ntohs(_tmp); \
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})
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#define PIM_TLV_GET_UINT32(buf) \
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({ \
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uint32_t _tmp; \
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memcpy(&_tmp, (buf), sizeof(uint32_t)); \
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ntohl(_tmp); \
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})
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#define PIM_TLV_GET_TYPE(buf) PIM_TLV_GET_UINT16(buf)
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#define PIM_TLV_GET_LENGTH(buf) PIM_TLV_GET_UINT16(buf)
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#define PIM_TLV_GET_HOLDTIME(buf) PIM_TLV_GET_UINT16(buf)
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#define PIM_TLV_GET_PROPAGATION_DELAY(buf) (PIM_TLV_GET_UINT16(buf) & 0x7FFF)
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#define PIM_TLV_GET_OVERRIDE_INTERVAL(buf) PIM_TLV_GET_UINT16(buf)
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#define PIM_TLV_GET_CAN_DISABLE_JOIN_SUPPRESSION(buf) ((*(const uint8_t *)(buf)) & 0x80)
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#define PIM_TLV_GET_DR_PRIORITY(buf) PIM_TLV_GET_UINT32(buf)
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#define PIM_TLV_GET_GENERATION_ID(buf) PIM_TLV_GET_UINT32(buf)
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#define PIM_TLV_TYPE_SIZE (2)
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#define PIM_TLV_LENGTH_SIZE (2)
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#define PIM_TLV_MIN_SIZE (PIM_TLV_TYPE_SIZE + PIM_TLV_LENGTH_SIZE)
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#define PIM_TLV_OPTION_SIZE(option_len) (PIM_TLV_MIN_SIZE + (option_len))
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uint8_t *pim_tlv_append_uint16(uint8_t *buf, const uint8_t *buf_pastend,
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uint16_t option_type, uint16_t option_value);
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uint8_t *pim_tlv_append_2uint16(uint8_t *buf, const uint8_t *buf_pastend,
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uint16_t option_type, uint16_t option_value1,
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uint16_t option_value2);
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uint8_t *pim_tlv_append_uint32(uint8_t *buf, const uint8_t *buf_pastend,
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uint16_t option_type, uint32_t option_value);
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uint8_t *pim_tlv_append_addrlist_ucast(uint8_t *buf, const uint8_t *buf_pastend,
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struct interface *ifp, int family);
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int pim_tlv_parse_holdtime(const char *ifname, pim_addr src_addr,
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pim_hello_options *hello_options,
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uint16_t *hello_option_holdtime, uint16_t option_len,
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const uint8_t *tlv_curr);
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int pim_tlv_parse_lan_prune_delay(const char *ifname, pim_addr src_addr,
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pim_hello_options *hello_options,
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uint16_t *hello_option_propagation_delay,
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uint16_t *hello_option_override_interval,
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uint16_t option_len, const uint8_t *tlv_curr);
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int pim_tlv_parse_dr_priority(const char *ifname, pim_addr src_addr,
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pim_hello_options *hello_options,
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uint32_t *hello_option_dr_priority,
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uint16_t option_len, const uint8_t *tlv_curr);
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int pim_tlv_parse_generation_id(const char *ifname, pim_addr src_addr,
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pim_hello_options *hello_options,
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uint32_t *hello_option_generation_id,
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uint16_t option_len, const uint8_t *tlv_curr);
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int pim_tlv_parse_addr_list(const char *ifname, pim_addr src_addr,
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pim_hello_options *hello_options,
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struct list **hello_option_addr_list,
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uint16_t option_len, const uint8_t *tlv_curr);
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int pim_encode_addr_ucast(uint8_t *buf, pim_addr addr);
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int pim_encode_addr_ucast_prefix(uint8_t *buf, struct prefix *p);
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int pim_encode_addr_group(uint8_t *buf, afi_t afi, int bidir, int scope,
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pim_addr group);
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int pim_parse_addr_ucast(pim_addr *out, const uint8_t *buf, int buf_size,
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bool *wrong_af);
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int pim_parse_addr_ucast_prefix(struct prefix *out, const uint8_t *buf,
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int buf_size);
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int pim_parse_addr_group(pim_sgaddr *sg, const uint8_t *buf, int buf_size);
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int pim_parse_addr_source(pim_sgaddr *sg, uint8_t *flags, const uint8_t *buf,
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int buf_size);
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#endif /* PIM_TLV_H */
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