1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2008 Everton da Silva Marques
16 #define PIM_MSG_OPTION_TYPE_HOLDTIME (1)
17 #define PIM_MSG_OPTION_TYPE_LAN_PRUNE_DELAY (2)
18 #define PIM_MSG_OPTION_TYPE_DR_PRIORITY (19)
19 #define PIM_MSG_OPTION_TYPE_GENERATION_ID (20)
20 #define PIM_MSG_OPTION_TYPE_DM_STATE_REFRESH (21)
21 #define PIM_MSG_OPTION_TYPE_ADDRESS_LIST (24)
23 typedef uint32_t pim_hello_options
;
24 #define PIM_OPTION_MASK_HOLDTIME (1 << 0) /* recv holdtime */
25 #define PIM_OPTION_MASK_LAN_PRUNE_DELAY (1 << 1) /* recv lan_prune_delay */
26 #define PIM_OPTION_MASK_DR_PRIORITY (1 << 2) /* recv dr_priority */
27 #define PIM_OPTION_MASK_GENERATION_ID (1 << 3) /* recv generation_id */
28 #define PIM_OPTION_MASK_ADDRESS_LIST (1 << 4) /* recv secondary address list */
29 #define PIM_OPTION_MASK_CAN_DISABLE_JOIN_SUPPRESSION (1 << 5) /* T bit value (valid if recv lan_prune_delay) */
31 #define PIM_RPT_BIT_MASK (1 << 0)
32 #define PIM_WILDCARD_BIT_MASK (1 << 1)
34 #define PIM_OPTION_SET(options, option_mask) ((options) |= (option_mask))
35 #define PIM_OPTION_UNSET(options, option_mask) ((options) &= ~(option_mask))
36 #define PIM_OPTION_IS_SET(options, option_mask) ((options) & (option_mask))
38 #define PIM_TLV_GET_UINT16(buf) \
41 memcpy(&_tmp, (buf), sizeof(uint16_t)); \
44 #define PIM_TLV_GET_UINT32(buf) \
47 memcpy(&_tmp, (buf), sizeof(uint32_t)); \
50 #define PIM_TLV_GET_TYPE(buf) PIM_TLV_GET_UINT16(buf)
51 #define PIM_TLV_GET_LENGTH(buf) PIM_TLV_GET_UINT16(buf)
52 #define PIM_TLV_GET_HOLDTIME(buf) PIM_TLV_GET_UINT16(buf)
53 #define PIM_TLV_GET_PROPAGATION_DELAY(buf) (PIM_TLV_GET_UINT16(buf) & 0x7FFF)
54 #define PIM_TLV_GET_OVERRIDE_INTERVAL(buf) PIM_TLV_GET_UINT16(buf)
55 #define PIM_TLV_GET_CAN_DISABLE_JOIN_SUPPRESSION(buf) ((*(const uint8_t *)(buf)) & 0x80)
56 #define PIM_TLV_GET_DR_PRIORITY(buf) PIM_TLV_GET_UINT32(buf)
57 #define PIM_TLV_GET_GENERATION_ID(buf) PIM_TLV_GET_UINT32(buf)
59 #define PIM_TLV_TYPE_SIZE (2)
60 #define PIM_TLV_LENGTH_SIZE (2)
61 #define PIM_TLV_MIN_SIZE (PIM_TLV_TYPE_SIZE + PIM_TLV_LENGTH_SIZE)
62 #define PIM_TLV_OPTION_SIZE(option_len) (PIM_TLV_MIN_SIZE + (option_len))
64 uint8_t *pim_tlv_append_uint16(uint8_t *buf
, const uint8_t *buf_pastend
,
65 uint16_t option_type
, uint16_t option_value
);
66 uint8_t *pim_tlv_append_2uint16(uint8_t *buf
, const uint8_t *buf_pastend
,
67 uint16_t option_type
, uint16_t option_value1
,
68 uint16_t option_value2
);
69 uint8_t *pim_tlv_append_uint32(uint8_t *buf
, const uint8_t *buf_pastend
,
70 uint16_t option_type
, uint32_t option_value
);
71 uint8_t *pim_tlv_append_addrlist_ucast(uint8_t *buf
, const uint8_t *buf_pastend
,
72 struct interface
*ifp
, int family
);
74 int pim_tlv_parse_holdtime(const char *ifname
, pim_addr src_addr
,
75 pim_hello_options
*hello_options
,
76 uint16_t *hello_option_holdtime
, uint16_t option_len
,
77 const uint8_t *tlv_curr
);
78 int pim_tlv_parse_lan_prune_delay(const char *ifname
, pim_addr src_addr
,
79 pim_hello_options
*hello_options
,
80 uint16_t *hello_option_propagation_delay
,
81 uint16_t *hello_option_override_interval
,
82 uint16_t option_len
, const uint8_t *tlv_curr
);
83 int pim_tlv_parse_dr_priority(const char *ifname
, pim_addr src_addr
,
84 pim_hello_options
*hello_options
,
85 uint32_t *hello_option_dr_priority
,
86 uint16_t option_len
, const uint8_t *tlv_curr
);
87 int pim_tlv_parse_generation_id(const char *ifname
, pim_addr src_addr
,
88 pim_hello_options
*hello_options
,
89 uint32_t *hello_option_generation_id
,
90 uint16_t option_len
, const uint8_t *tlv_curr
);
91 int pim_tlv_parse_addr_list(const char *ifname
, pim_addr src_addr
,
92 pim_hello_options
*hello_options
,
93 struct list
**hello_option_addr_list
,
94 uint16_t option_len
, const uint8_t *tlv_curr
);
96 int pim_encode_addr_ucast(uint8_t *buf
, pim_addr addr
);
97 int pim_encode_addr_ucast_prefix(uint8_t *buf
, struct prefix
*p
);
98 int pim_encode_addr_group(uint8_t *buf
, afi_t afi
, int bidir
, int scope
,
101 int pim_parse_addr_ucast(pim_addr
*out
, const uint8_t *buf
, int buf_size
,
103 int pim_parse_addr_ucast_prefix(struct prefix
*out
, const uint8_t *buf
,
105 int pim_parse_addr_group(pim_sgaddr
*sg
, const uint8_t *buf
, int buf_size
);
106 int pim_parse_addr_source(pim_sgaddr
*sg
, uint8_t *flags
, const uint8_t *buf
,
109 #endif /* PIM_TLV_H */