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d62a17ae | 1 | /* |
65efcfce LB |
2 | * |
3 | * Copyright 2009-2016, LabN Consulting, L.L.C. | |
4 | * | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
65efcfce LB |
19 | */ |
20 | ||
21 | ||
f8b6f499 LB |
22 | #include "lib/zebra.h" |
23 | #include "lib/prefix.h" | |
fe08ba7e | 24 | #include "lib/agg_table.h" |
f8b6f499 LB |
25 | #include "lib/memory.h" |
26 | #include "lib/vty.h" | |
27 | ||
28 | #include "bgpd/bgpd.h" | |
29 | #include "bgpd/bgp_route.h" | |
30 | ||
31 | #include "bgpd/rfapi/vnc_export_table.h" | |
32 | #include "bgpd/rfapi/rfapi_private.h" | |
33 | #include "bgpd/rfapi/rfapi_import.h" | |
a3b55c25 | 34 | #include "bgpd/rfapi/vnc_debug.h" |
65efcfce | 35 | |
fe08ba7e | 36 | struct agg_node *vnc_etn_get(struct bgp *bgp, vnc_export_type_t type, |
5a1ae2c2 | 37 | const struct prefix *p) |
65efcfce | 38 | { |
fe08ba7e DS |
39 | struct agg_table *t = NULL; |
40 | struct agg_node *rn = NULL; | |
d62a17ae | 41 | afi_t afi; |
42 | ||
43 | if (!bgp || !bgp->rfapi) | |
44 | return NULL; | |
45 | ||
46 | afi = family2afi(p->family); | |
47 | assert(afi == AFI_IP || afi == AFI_IP6); | |
48 | ||
49 | switch (type) { | |
50 | case EXPORT_TYPE_BGP: | |
51 | if (!bgp->rfapi->rt_export_bgp[afi]) | |
fe08ba7e | 52 | bgp->rfapi->rt_export_bgp[afi] = agg_table_init(); |
d62a17ae | 53 | t = bgp->rfapi->rt_export_bgp[afi]; |
54 | break; | |
55 | ||
56 | case EXPORT_TYPE_ZEBRA: | |
57 | if (!bgp->rfapi->rt_export_zebra[afi]) | |
fe08ba7e | 58 | bgp->rfapi->rt_export_zebra[afi] = agg_table_init(); |
d62a17ae | 59 | t = bgp->rfapi->rt_export_zebra[afi]; |
60 | break; | |
61 | } | |
62 | ||
63 | if (t) | |
fe08ba7e | 64 | rn = agg_node_get(t, p); |
d62a17ae | 65 | return rn; |
65efcfce LB |
66 | } |
67 | ||
fe08ba7e | 68 | struct agg_node *vnc_etn_lookup(struct bgp *bgp, vnc_export_type_t type, |
5a1ae2c2 | 69 | const struct prefix *p) |
65efcfce | 70 | { |
fe08ba7e DS |
71 | struct agg_table *t = NULL; |
72 | struct agg_node *rn = NULL; | |
d62a17ae | 73 | afi_t afi; |
74 | ||
75 | if (!bgp || !bgp->rfapi) | |
76 | return NULL; | |
77 | ||
78 | afi = family2afi(p->family); | |
79 | assert(afi == AFI_IP || afi == AFI_IP6); | |
80 | ||
81 | switch (type) { | |
82 | case EXPORT_TYPE_BGP: | |
83 | if (!bgp->rfapi->rt_export_bgp[afi]) | |
fe08ba7e | 84 | bgp->rfapi->rt_export_bgp[afi] = agg_table_init(); |
d62a17ae | 85 | t = bgp->rfapi->rt_export_bgp[afi]; |
86 | break; | |
87 | ||
88 | case EXPORT_TYPE_ZEBRA: | |
89 | if (!bgp->rfapi->rt_export_zebra[afi]) | |
fe08ba7e | 90 | bgp->rfapi->rt_export_zebra[afi] = agg_table_init(); |
d62a17ae | 91 | t = bgp->rfapi->rt_export_zebra[afi]; |
92 | break; | |
93 | } | |
94 | ||
95 | if (t) | |
fe08ba7e | 96 | rn = agg_node_lookup(t, p); |
d62a17ae | 97 | return rn; |
65efcfce LB |
98 | } |
99 | ||
d62a17ae | 100 | struct vnc_export_info *vnc_eti_get(struct bgp *bgp, vnc_export_type_t etype, |
5a1ae2c2 | 101 | const struct prefix *p, struct peer *peer, |
d62a17ae | 102 | uint8_t type, uint8_t subtype) |
65efcfce | 103 | { |
fe08ba7e | 104 | struct agg_node *etn; |
d62a17ae | 105 | struct vnc_export_info *eti; |
106 | ||
107 | etn = vnc_etn_get(bgp, etype, p); | |
108 | assert(etn); | |
109 | ||
110 | for (eti = etn->info; eti; eti = eti->next) { | |
111 | if (peer == eti->peer && type == eti->type | |
112 | && subtype == eti->subtype) { | |
113 | ||
114 | break; | |
115 | } | |
116 | } | |
117 | ||
118 | if (eti) { | |
fe08ba7e | 119 | agg_unlock_node(etn); |
d62a17ae | 120 | } else { |
121 | eti = XCALLOC(MTYPE_RFAPI_ETI, sizeof(struct vnc_export_info)); | |
122 | assert(eti); | |
123 | eti->node = etn; | |
124 | eti->peer = peer; | |
125 | peer_lock(peer); | |
126 | eti->type = type; | |
127 | eti->subtype = subtype; | |
128 | eti->next = etn->info; | |
129 | etn->info = eti; | |
130 | } | |
131 | ||
132 | return eti; | |
65efcfce LB |
133 | } |
134 | ||
d62a17ae | 135 | void vnc_eti_delete(struct vnc_export_info *goner) |
65efcfce | 136 | { |
fe08ba7e | 137 | struct agg_node *etn; |
d62a17ae | 138 | struct vnc_export_info *eti; |
139 | struct vnc_export_info *eti_prev = NULL; | |
140 | ||
141 | etn = goner->node; | |
142 | ||
143 | for (eti = etn->info; eti; eti_prev = eti, eti = eti->next) { | |
144 | if (eti == goner) | |
145 | break; | |
146 | } | |
147 | ||
148 | if (!eti) { | |
149 | vnc_zlog_debug_verbose("%s: COULDN'T FIND ETI", __func__); | |
150 | return; | |
151 | } | |
152 | ||
153 | if (eti_prev) { | |
154 | eti_prev->next = goner->next; | |
155 | } else { | |
156 | etn->info = goner->next; | |
157 | } | |
158 | ||
159 | peer_unlock(eti->peer); | |
160 | goner->node = NULL; | |
161 | XFREE(MTYPE_RFAPI_ETI, goner); | |
162 | ||
fe08ba7e | 163 | agg_unlock_node(etn); |
65efcfce LB |
164 | } |
165 | ||
d62a17ae | 166 | struct vnc_export_info *vnc_eti_checktimer(struct bgp *bgp, |
167 | vnc_export_type_t etype, | |
5f040085 DS |
168 | const struct prefix *p, |
169 | struct peer *peer, uint8_t type, | |
170 | uint8_t subtype) | |
65efcfce | 171 | { |
fe08ba7e | 172 | struct agg_node *etn; |
d62a17ae | 173 | struct vnc_export_info *eti; |
65efcfce | 174 | |
d62a17ae | 175 | etn = vnc_etn_lookup(bgp, etype, p); |
176 | if (!etn) | |
177 | return NULL; | |
65efcfce | 178 | |
d62a17ae | 179 | for (eti = etn->info; eti; eti = eti->next) { |
180 | if (peer == eti->peer && type == eti->type | |
181 | && subtype == eti->subtype) { | |
65efcfce | 182 | |
d62a17ae | 183 | break; |
184 | } | |
185 | } | |
65efcfce | 186 | |
fe08ba7e | 187 | agg_unlock_node(etn); |
65efcfce | 188 | |
d62a17ae | 189 | if (eti && eti->timer) |
190 | return eti; | |
65efcfce | 191 | |
d62a17ae | 192 | return NULL; |
65efcfce | 193 | } |