3 * Copyright (C) 2008 Everton da Silva Marques
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
29 #define PIM_MSG_OPTION_TYPE_HOLDTIME (1)
30 #define PIM_MSG_OPTION_TYPE_LAN_PRUNE_DELAY (2)
31 #define PIM_MSG_OPTION_TYPE_DR_PRIORITY (19)
32 #define PIM_MSG_OPTION_TYPE_GENERATION_ID (20)
33 #define PIM_MSG_OPTION_TYPE_DM_STATE_REFRESH (21)
34 #define PIM_MSG_OPTION_TYPE_ADDRESS_LIST (24)
36 typedef uint32_t pim_hello_options
;
37 #define PIM_OPTION_MASK_HOLDTIME (1 << 0) /* recv holdtime */
38 #define PIM_OPTION_MASK_LAN_PRUNE_DELAY (1 << 1) /* recv lan_prune_delay */
39 #define PIM_OPTION_MASK_DR_PRIORITY (1 << 2) /* recv dr_priority */
40 #define PIM_OPTION_MASK_GENERATION_ID (1 << 3) /* recv generation_id */
41 #define PIM_OPTION_MASK_ADDRESS_LIST (1 << 4) /* recv secondary address list */
42 #define PIM_OPTION_MASK_CAN_DISABLE_JOIN_SUPPRESSION (1 << 5) /* T bit value (valid if recv lan_prune_delay) */
44 #define PIM_RPT_BIT_MASK (1 << 0)
45 #define PIM_WILDCARD_BIT_MASK (1 << 1)
47 #define PIM_OPTION_SET(options, option_mask) ((options) |= (option_mask))
48 #define PIM_OPTION_UNSET(options, option_mask) ((options) &= ~(option_mask))
49 #define PIM_OPTION_IS_SET(options, option_mask) ((options) & (option_mask))
51 #define PIM_TLV_GET_UINT16(buf) \
54 memcpy(&_tmp, (buf), sizeof(uint16_t)); \
57 #define PIM_TLV_GET_UINT32(buf) \
60 memcpy(&_tmp, (buf), sizeof(uint32_t)); \
63 #define PIM_TLV_GET_TYPE(buf) PIM_TLV_GET_UINT16(buf)
64 #define PIM_TLV_GET_LENGTH(buf) PIM_TLV_GET_UINT16(buf)
65 #define PIM_TLV_GET_HOLDTIME(buf) PIM_TLV_GET_UINT16(buf)
66 #define PIM_TLV_GET_PROPAGATION_DELAY(buf) (PIM_TLV_GET_UINT16(buf) & 0x7FFF)
67 #define PIM_TLV_GET_OVERRIDE_INTERVAL(buf) PIM_TLV_GET_UINT16(buf)
68 #define PIM_TLV_GET_CAN_DISABLE_JOIN_SUPPRESSION(buf) ((*(const uint8_t *)(buf)) & 0x80)
69 #define PIM_TLV_GET_DR_PRIORITY(buf) PIM_TLV_GET_UINT32(buf)
70 #define PIM_TLV_GET_GENERATION_ID(buf) PIM_TLV_GET_UINT32(buf)
72 #define PIM_TLV_TYPE_SIZE (2)
73 #define PIM_TLV_LENGTH_SIZE (2)
74 #define PIM_TLV_MIN_SIZE (PIM_TLV_TYPE_SIZE + PIM_TLV_LENGTH_SIZE)
75 #define PIM_TLV_OPTION_SIZE(option_len) (PIM_TLV_MIN_SIZE + (option_len))
77 uint8_t *pim_tlv_append_uint16(uint8_t *buf
, const uint8_t *buf_pastend
,
78 uint16_t option_type
, uint16_t option_value
);
79 uint8_t *pim_tlv_append_2uint16(uint8_t *buf
, const uint8_t *buf_pastend
,
80 uint16_t option_type
, uint16_t option_value1
,
81 uint16_t option_value2
);
82 uint8_t *pim_tlv_append_uint32(uint8_t *buf
, const uint8_t *buf_pastend
,
83 uint16_t option_type
, uint32_t option_value
);
84 uint8_t *pim_tlv_append_addrlist_ucast(uint8_t *buf
, const uint8_t *buf_pastend
,
85 struct list
*ifconnected
, int family
);
87 int pim_tlv_parse_holdtime(const char *ifname
, struct in_addr src_addr
,
88 pim_hello_options
*hello_options
,
89 uint16_t *hello_option_holdtime
, uint16_t option_len
,
90 const uint8_t *tlv_curr
);
91 int pim_tlv_parse_lan_prune_delay(const char *ifname
, struct in_addr src_addr
,
92 pim_hello_options
*hello_options
,
93 uint16_t *hello_option_propagation_delay
,
94 uint16_t *hello_option_override_interval
,
95 uint16_t option_len
, const uint8_t *tlv_curr
);
96 int pim_tlv_parse_dr_priority(const char *ifname
, struct in_addr src_addr
,
97 pim_hello_options
*hello_options
,
98 uint32_t *hello_option_dr_priority
,
99 uint16_t option_len
, const uint8_t *tlv_curr
);
100 int pim_tlv_parse_generation_id(const char *ifname
, struct in_addr src_addr
,
101 pim_hello_options
*hello_options
,
102 uint32_t *hello_option_generation_id
,
103 uint16_t option_len
, const uint8_t *tlv_curr
);
104 int pim_tlv_parse_addr_list(const char *ifname
, struct in_addr src_addr
,
105 pim_hello_options
*hello_options
,
106 struct list
**hello_option_addr_list
,
107 uint16_t option_len
, const uint8_t *tlv_curr
);
109 int pim_encode_addr_ucast(uint8_t *buf
, struct prefix
*p
);
110 int pim_encode_addr_group(uint8_t *buf
, afi_t afi
, int bidir
, int scope
,
111 struct in_addr group
);
113 int pim_parse_addr_ucast(struct prefix
*p
, const uint8_t *buf
, int buf_size
);
114 int pim_parse_addr_group(struct prefix_sg
*sg
, const uint8_t *buf
,
116 int pim_parse_addr_source(struct prefix_sg
*sg
, uint8_t *flags
,
117 const uint8_t *buf
, int buf_size
);
119 #endif /* PIM_TLV_H */