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
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Copyright 2009-2016, LabN Consulting, L.L.C.
*
*/
#ifndef QUAGGA_HGP_RFAPI_MONITOR_H
#define QUAGGA_HGP_RFAPI_MONITOR_H
#include "lib/zebra.h"
#include "lib/prefix.h"
#include "lib/table.h"
/*
* These get attached to the nodes in an import table (using "aggregate" ptr)
* to indicate which nves are interested in a prefix/target
*/
struct rfapi_monitor_vpn {
struct rfapi_monitor_vpn *next; /* chain from struct agg_node */
struct rfapi_descriptor *rfd; /* which NVE requested the route */
struct prefix p; /* constant: pfx in original request */
struct agg_node *node; /* node we're currently attached to */
uint32_t flags;
#define RFAPI_MON_FLAG_NEEDCALLBACK 0x00000001 /* deferred callback */
// int dcount; /* debugging counter */
struct event *timer;
};
struct rfapi_monitor_encap {
struct rfapi_monitor_encap *next;
struct rfapi_monitor_encap *prev;
struct agg_node *node; /* VPN node */
struct bgp_path_info *bpi; /* VPN bpi */
struct agg_node *rn; /* parent node */
};
struct rfapi_monitor_eth {
struct rfapi_monitor_eth *next; /* for use in vpn0_queries list */
struct rfapi_descriptor *rfd; /* which NVE requested the route */
struct ethaddr macaddr;
uint32_t logical_net_id;
struct event *timer;
};
/*
* This is referenced by the "aggregate" field of a route node
* in an RFAPI import table.
*
* node lock/unlock:
* - one lock increment for this structure itself
* - one lock per chained struct rfapi_monitor_vpn
* - one lock for the mon_eth skiplist itself
* - one lock per mon_eth skiplist entry
* - one lock for the ext skiplist itself
* - one lock for each ext skiplist entry
* remember to free skiplist when freeing rfapi_it_extra
* - one lock per chained struct rfapi_monitor_encap
*
*/
struct rfapi_it_extra {
union {
struct {
struct rfapi_monitor_vpn *v;
struct skiplist *idx_rd; /* RD index */
struct skiplist *mon_eth; /* ether queries */
struct {
/* routes with UN addrs, either cached encap or
* Encap TLV */
int valid_interior_count;
/* unicast exterior routes, key=bpi,
* val=allocated prefix */
struct skiplist *source;
} e;
} vpn;
struct {
struct rfapi_monitor_encap *e;
} encap;
} u;
};
#define RFAPI_IT_EXTRA_GET(rn) \
((struct rfapi_it_extra \
*)((rn)->aggregate \
? (rn)->aggregate \
: (agg_lock_node(rn), \
(rn)->aggregate = XCALLOC( \
MTYPE_RFAPI_IT_EXTRA, \
sizeof(struct rfapi_it_extra)))))
#define RFAPI_RDINDEX(rn) \
((rn)->aggregate ? RFAPI_IT_EXTRA_GET(rn)->u.vpn.idx_rd : NULL)
#define RFAPI_RDINDEX_W_ALLOC(rn) (RFAPI_IT_EXTRA_GET(rn)->u.vpn.idx_rd)
#define RFAPI_MONITOR_ETH(rn) \
((rn)->aggregate ? RFAPI_IT_EXTRA_GET(rn)->u.vpn.mon_eth : NULL)
#define RFAPI_MONITOR_ETH_W_ALLOC(rn) (RFAPI_IT_EXTRA_GET(rn)->u.vpn.mon_eth)
#define RFAPI_MONITOR_VPN(rn) \
((rn)->aggregate ? RFAPI_IT_EXTRA_GET(rn)->u.vpn.v : NULL)
#define RFAPI_MONITOR_VPN_W_ALLOC(rn) (RFAPI_IT_EXTRA_GET(rn)->u.vpn.v)
#define RFAPI_MONITOR_ENCAP(rn) \
((rn)->aggregate ? RFAPI_IT_EXTRA_GET(rn)->u.encap.e : NULL)
#define RFAPI_MONITOR_ENCAP_W_ALLOC(rn) (RFAPI_IT_EXTRA_GET(rn)->u.encap.e)
#define RFAPI_MONITOR_EXTERIOR(rn) (&(RFAPI_IT_EXTRA_GET(rn)->u.vpn.e))
#define RFAPI_HAS_MONITOR_EXTERIOR(rn) \
(rn && rn->aggregate \
&& ((struct rfapi_it_extra *)(rn->aggregate))->u.vpn.e.source \
&& !skiplist_first(((struct rfapi_it_extra *)(rn->aggregate)) \
->u.vpn.e.source, \
NULL, NULL))
extern void rfapiMonitorLoopCheck(struct rfapi_monitor_vpn *mchain);
extern void rfapiMonitorCleanCheck(struct bgp *bgp);
extern void rfapiMonitorCheckAttachAllowed(void);
extern void rfapiMonitorExtraFlush(safi_t safi, struct agg_node *rn);
extern struct agg_node *rfapiMonitorGetAttachNode(struct rfapi_descriptor *rfd,
struct prefix *p);
extern void rfapiMonitorAttachImportHd(struct rfapi_descriptor *rfd);
extern struct agg_node *rfapiMonitorAdd(struct bgp *bgp,
struct rfapi_descriptor *rfd,
struct prefix *p);
extern void rfapiMonitorDetachImportHd(struct rfapi_descriptor *rfd);
extern void rfapiMonitorDel(struct bgp *bgp, struct rfapi_descriptor *rfd,
struct prefix *p);
extern int rfapiMonitorDelHd(struct rfapi_descriptor *rfd);
extern void rfapiMonitorCallbacksOff(struct bgp *bgp);
extern void rfapiMonitorCallbacksOn(struct bgp *bgp);
extern void rfapiMonitorResponseRemovalOff(struct bgp *bgp);
extern void rfapiMonitorResponseRemovalOn(struct bgp *bgp);
extern void rfapiMonitorExtraPrune(safi_t safi, struct agg_node *rn);
extern void rfapiMonitorTimersRestart(struct rfapi_descriptor *rfd,
const struct prefix *p);
extern void rfapiMonitorItNodeChanged(struct rfapi_import_table *import_table,
struct agg_node *it_node,
struct rfapi_monitor_vpn *monitor_list);
extern void rfapiMonitorMovedUp(struct rfapi_import_table *import_table,
struct agg_node *old_node,
struct agg_node *new_node,
struct rfapi_monitor_vpn *monitor_list);
extern struct agg_node *rfapiMonitorEthAdd(struct bgp *bgp,
struct rfapi_descriptor *rfd,
struct ethaddr *macaddr,
uint32_t logical_net_id);
extern void rfapiMonitorEthDel(struct bgp *bgp, struct rfapi_descriptor *rfd,
struct ethaddr *macaddr,
uint32_t logical_net_id);
#endif /* QUAGGA_HGP_RFAPI_MONITOR_H */
|
