1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
/*
PIM for Quagga
Copyright (C) 2008 Everton da Silva Marques
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as 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 PIM_TLV_H
#define PIM_TLV_H
#include <zebra.h>
#include "config.h"
#include "if.h"
#include "linklist.h"
#define PIM_MSG_OPTION_TYPE_HOLDTIME (1)
#define PIM_MSG_OPTION_TYPE_LAN_PRUNE_DELAY (2)
#define PIM_MSG_OPTION_TYPE_DR_PRIORITY (19)
#define PIM_MSG_OPTION_TYPE_GENERATION_ID (20)
#define PIM_MSG_OPTION_TYPE_DM_STATE_REFRESH (21)
#define PIM_MSG_OPTION_TYPE_ADDRESS_LIST (24)
typedef uint32_t pim_hello_options;
#define PIM_OPTION_MASK_HOLDTIME (1 << 0) /* recv holdtime */
#define PIM_OPTION_MASK_LAN_PRUNE_DELAY (1 << 1) /* recv lan_prune_delay */
#define PIM_OPTION_MASK_DR_PRIORITY (1 << 2) /* recv dr_priority */
#define PIM_OPTION_MASK_GENERATION_ID (1 << 3) /* recv generation_id */
#define PIM_OPTION_MASK_ADDRESS_LIST (1 << 4) /* recv secondary address list */
#define PIM_OPTION_MASK_CAN_DISABLE_JOIN_SUPPRESSION (1 << 5) /* T bit value (valid if recv lan_prune_delay) */
#define PIM_RPT_BIT_MASK (1 << 0)
#define PIM_WILDCARD_BIT_MASK (1 << 1)
#define PIM_OPTION_SET(options, option_mask) ((options) |= (option_mask))
#define PIM_OPTION_UNSET(options, option_mask) ((options) &= ~(option_mask))
#define PIM_OPTION_IS_SET(options, option_mask) ((options) & (option_mask))
#define PIM_TLV_GET_UINT16(buf) ntohs(*(const uint16_t *)(buf))
#define PIM_TLV_GET_UINT32(buf) ntohl(*(const uint32_t *)(buf))
#define PIM_TLV_GET_TYPE(buf) PIM_TLV_GET_UINT16(buf)
#define PIM_TLV_GET_LENGTH(buf) PIM_TLV_GET_UINT16(buf)
#define PIM_TLV_GET_HOLDTIME(buf) PIM_TLV_GET_UINT16(buf)
#define PIM_TLV_GET_PROPAGATION_DELAY(buf) (PIM_TLV_GET_UINT16(buf) & 0x7FFF)
#define PIM_TLV_GET_OVERRIDE_INTERVAL(buf) PIM_TLV_GET_UINT16(buf)
#define PIM_TLV_GET_CAN_DISABLE_JOIN_SUPPRESSION(buf) ((*(const uint8_t *)(buf)) & 0x80)
#define PIM_TLV_GET_DR_PRIORITY(buf) PIM_TLV_GET_UINT32(buf)
#define PIM_TLV_GET_GENERATION_ID(buf) PIM_TLV_GET_UINT32(buf)
#define PIM_TLV_TYPE_SIZE (2)
#define PIM_TLV_LENGTH_SIZE (2)
#define PIM_TLV_MIN_SIZE (PIM_TLV_TYPE_SIZE + PIM_TLV_LENGTH_SIZE)
#define PIM_TLV_OPTION_SIZE(option_len) (PIM_TLV_MIN_SIZE + (option_len))
uint8_t *pim_tlv_append_uint16(uint8_t *buf,
const uint8_t *buf_pastend,
uint16_t option_type,
uint16_t option_value);
uint8_t *pim_tlv_append_2uint16(uint8_t *buf,
const uint8_t *buf_pastend,
uint16_t option_type,
uint16_t option_value1,
uint16_t option_value2);
uint8_t *pim_tlv_append_uint32(uint8_t *buf,
const uint8_t *buf_pastend,
uint16_t option_type,
uint32_t option_value);
uint8_t *pim_tlv_append_addrlist_ucast(uint8_t *buf,
const uint8_t *buf_pastend,
struct list *ifconnected);
int pim_tlv_parse_holdtime(const char *ifname, struct in_addr src_addr,
pim_hello_options *hello_options,
uint16_t *hello_option_holdtime,
uint16_t option_len,
const uint8_t *tlv_curr);
int pim_tlv_parse_lan_prune_delay(const char *ifname, struct in_addr src_addr,
pim_hello_options *hello_options,
uint16_t *hello_option_propagation_delay,
uint16_t *hello_option_override_interval,
uint16_t option_len,
const uint8_t *tlv_curr);
int pim_tlv_parse_dr_priority(const char *ifname, struct in_addr src_addr,
pim_hello_options *hello_options,
uint32_t *hello_option_dr_priority,
uint16_t option_len,
const uint8_t *tlv_curr);
int pim_tlv_parse_generation_id(const char *ifname, struct in_addr src_addr,
pim_hello_options *hello_options,
uint32_t *hello_option_generation_id,
uint16_t option_len,
const uint8_t *tlv_curr);
int pim_tlv_parse_addr_list(const char *ifname, struct in_addr src_addr,
pim_hello_options *hello_options,
struct list **hello_option_addr_list,
uint16_t option_len,
const uint8_t *tlv_curr);
int pim_parse_addr_ucast (struct prefix *p,
const uint8_t *buf,
int buf_size);
int pim_parse_addr_group (struct prefix *p,
const uint8_t *buf,
int buf_size);
int pim_parse_addr_source(struct prefix *p,
uint8_t *flags,
const uint8_t *buf,
int buf_size);
#endif /* PIM_TLV_H */
|
