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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
/*
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_UPSTREAM_H
#define PIM_UPSTREAM_H
#include <zebra.h>
#include <prefix.h>
#include <pimd/pim_rpf.h>
#define PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED (1 << 0)
#define PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED_UPDATED (1 << 1)
#define PIM_UPSTREAM_FLAG_MASK_FHR (1 << 2)
#define PIM_UPSTREAM_FLAG_MASK_SRC_IGMP (1 << 3)
#define PIM_UPSTREAM_FLAG_MASK_SRC_PIM (1 << 4)
#define PIM_UPSTREAM_FLAG_MASK_SRC_STREAM (1 << 5)
#define PIM_UPSTREAM_FLAG_MASK_SRC_MSDP (1 << 6)
#define PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE (1 << 7)
#define PIM_UPSTREAM_FLAG_MASK_SRC_LHR (1 << 8)
#define PIM_UPSTREAM_FLAG_ALL 0xFFFFFFFF
#define PIM_UPSTREAM_FLAG_TEST_DR_JOIN_DESIRED(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED)
#define PIM_UPSTREAM_FLAG_TEST_DR_JOIN_DESIRED_UPDATED(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED_UPDATED)
#define PIM_UPSTREAM_FLAG_TEST_FHR(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_FHR)
#define PIM_UPSTREAM_FLAG_TEST_SRC_IGMP(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SRC_IGMP)
#define PIM_UPSTREAM_FLAG_TEST_SRC_PIM(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SRC_PIM)
#define PIM_UPSTREAM_FLAG_TEST_SRC_STREAM(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SRC_STREAM)
#define PIM_UPSTREAM_FLAG_TEST_SRC_MSDP(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SRC_MSDP)
#define PIM_UPSTREAM_FLAG_TEST_SEND_SG_RPT_PRUNE(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE)
#define PIM_UPSTREAM_FLAG_TEST_SRC_LHR(flags) ((flags) & PIM_UPSTREAM_FLAG_MASK_SRC_LHR)
#define PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED)
#define PIM_UPSTREAM_FLAG_SET_DR_JOIN_DESIRED_UPDATED(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED_UPDATED)
#define PIM_UPSTREAM_FLAG_SET_FHR(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_FHR)
#define PIM_UPSTREAM_FLAG_SET_SRC_IGMP(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SRC_IGMP)
#define PIM_UPSTREAM_FLAG_SET_SRC_PIM(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SRC_PIM)
#define PIM_UPSTREAM_FLAG_SET_SRC_STREAM(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SRC_STREAM)
#define PIM_UPSTREAM_FLAG_SET_SRC_MSDP(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SRC_MSDP)
#define PIM_UPSTREAM_FLAG_SET_SEND_SG_RPT_PRUNE(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE)
#define PIM_UPSTREAM_FLAG_SET_SRC_LHR(flags) ((flags) |= PIM_UPSTREAM_FLAG_MASK_SRC_LHR)
#define PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED)
#define PIM_UPSTREAM_FLAG_UNSET_DR_JOIN_DESIRED_UPDATED(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_DR_JOIN_DESIRED_UPDATED)
#define PIM_UPSTREAM_FLAG_UNSET_FHR(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_FHR)
#define PIM_UPSTREAM_FLAG_UNSET_SRC_IGMP(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SRC_IGMP)
#define PIM_UPSTREAM_FLAG_UNSET_SRC_PIM(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SRC_PIM)
#define PIM_UPSTREAM_FLAG_UNSET_SRC_STREAM(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SRC_STREAM)
#define PIM_UPSTREAM_FLAG_UNSET_SRC_MSDP(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SRC_MSDP)
#define PIM_UPSTREAM_FLAG_UNSET_SEND_SG_RPT_PRUNE(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SEND_SG_RPT_PRUNE)
#define PIM_UPSTREAM_FLAG_UNSET_SRC_LHR(flags) ((flags) &= ~PIM_UPSTREAM_FLAG_MASK_SRC_LHR)
enum pim_upstream_state {
PIM_UPSTREAM_NOTJOINED,
PIM_UPSTREAM_JOINED,
};
enum pim_reg_state {
PIM_REG_NOINFO,
PIM_REG_JOIN,
PIM_REG_JOIN_PENDING,
PIM_REG_PRUNE,
};
enum pim_upstream_sptbit {
PIM_UPSTREAM_SPTBIT_FALSE,
PIM_UPSTREAM_SPTBIT_TRUE
};
/*
Upstream (S,G) channel in Joined state
(S,G) in the "Not Joined" state is not represented
See RFC 4601: 4.5.7. Sending (S,G) Join/Prune Message
*/
struct pim_upstream {
struct pim_upstream *parent;
struct in_addr upstream_addr;/* Who we are talking to */
struct in_addr upstream_register; /*Who we received a register from*/
struct prefix_sg sg; /* (S,G) group key */
char sg_str[PIM_SG_LEN];
uint32_t flags;
struct channel_oil *channel_oil;
struct list *sources;
struct list *ifchannels;
enum pim_upstream_state join_state;
enum pim_reg_state reg_state;
enum pim_upstream_sptbit sptbit;
int ref_count;
struct pim_rpf rpf;
struct thread *t_join_timer;
/*
* RST(S,G)
*/
struct thread *t_rs_timer;
#define PIM_REGISTER_SUPPRESSION_PERIOD (60)
#define PIM_REGISTER_PROBE_PERIOD (15)
/*
* KAT(S,G)
*/
struct thread *t_ka_timer;
#define PIM_KEEPALIVE_PERIOD (210)
#define PIM_RP_KEEPALIVE_PERIOD ( 3 * qpim_register_suppress_time + qpim_register_probe_time )
/* on the RP we restart a timer to indicate if registers are being rxed for
* SG. This is needed by MSDP to determine its local SA cache */
struct thread *t_msdp_reg_timer;
#define PIM_MSDP_REG_RXED_PERIOD (3 * (1.5 * qpim_register_suppress_time))
int64_t state_transition; /* Record current state uptime */
};
struct list *pim_upstream_list;
struct hash *pim_upstream_hash;
void pim_upstream_free(struct pim_upstream *up);
struct pim_upstream *pim_upstream_find (struct prefix_sg *sg);
struct pim_upstream *pim_upstream_find_or_add (struct prefix_sg *sg,
struct interface *ifp, int flags,
const char *name);
struct pim_upstream *pim_upstream_add (struct prefix_sg *sg,
struct interface *ifp, int flags,
const char *name);
void pim_upstream_ref (struct pim_upstream *up, int flags);
struct pim_upstream *pim_upstream_del(struct pim_upstream *up, const char *name);
int pim_upstream_evaluate_join_desired(struct pim_upstream *up);
int pim_upstream_evaluate_join_desired_interface(struct pim_upstream *up,
struct pim_ifchannel *ch,
struct pim_ifchannel *starch);
void pim_upstream_update_join_desired(struct pim_upstream *up);
void pim_upstream_join_suppress(struct pim_upstream *up,
struct in_addr rpf_addr,
int holdtime);
void pim_upstream_join_timer_decrease_to_t_override(const char *debug_label,
struct pim_upstream *up);
void pim_upstream_join_timer_restart(struct pim_upstream *up, struct pim_rpf *old);
void pim_upstream_rpf_genid_changed(struct in_addr neigh_addr);
void pim_upstream_rpf_interface_changed(struct pim_upstream *up,
struct interface *old_rpf_ifp);
void pim_upstream_update_could_assert(struct pim_upstream *up);
void pim_upstream_update_my_assert_metric(struct pim_upstream *up);
void pim_upstream_keep_alive_timer_start (struct pim_upstream *up, uint32_t time);
int pim_upstream_switch_to_spt_desired (struct prefix_sg *sg);
#define SwitchToSptDesired(sg) pim_upstream_switch_to_spt_desired (sg)
int pim_upstream_is_sg_rpt (struct pim_upstream *up);
void pim_upstream_set_sptbit (struct pim_upstream *up, struct interface *incoming);
void pim_upstream_start_register_stop_timer (struct pim_upstream *up, int null_register);
void pim_upstream_send_join (struct pim_upstream *up);
void pim_upstream_switch (struct pim_upstream *up, enum pim_upstream_state new_state);
const char *pim_upstream_state2str (enum pim_upstream_state join_state);
#define PIM_REG_STATE_STR_LEN 12
const char *pim_reg_state2str (enum pim_reg_state state, char *state_str);
int pim_upstream_inherited_olist_decide (struct pim_upstream *up);
int pim_upstream_inherited_olist (struct pim_upstream *up);
int pim_upstream_empty_inherited_olist (struct pim_upstream *up);
void pim_upstream_find_new_rpf (void);
void pim_upstream_msdp_reg_timer_start(struct pim_upstream *up);
void pim_upstream_init (void);
void pim_upstream_terminate (void);
void join_timer_start (struct pim_upstream *up);
int pim_upstream_compare (void *arg1, void *arg2);
void pim_upstream_register_reevaluate (void);
void pim_upstream_add_lhr_star_pimreg (void);
void pim_upstream_remove_lhr_star_pimreg (const char *nlist);
void pim_upstream_spt_prefix_list_update (struct prefix_list *pl);
#endif /* PIM_UPSTREAM_H */
|
