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Commit | Line | Data |
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12e41d03 | 1 | /* |
896014f4 DL |
2 | * PIM for Quagga |
3 | * Copyright (C) 2008 Everton da Silva Marques | |
4 | * | |
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. | |
9 | * | |
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. | |
14 | * | |
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 | |
18 | */ | |
12e41d03 DL |
19 | |
20 | #ifndef PIM_OIL_H | |
21 | #define PIM_OIL_H | |
22 | ||
23 | #include "pim_mroute.h" | |
5923b739 | 24 | #include "pim_iface.h" |
12e41d03 | 25 | |
0fba6e63 DS |
26 | /* |
27 | * Where did we get this (S,G) from? | |
28 | * | |
29 | * IGMP - Learned from IGMP | |
30 | * PIM - Learned from PIM | |
31 | * SOURCE - Learned from Source multicast packet received | |
781a1745 | 32 | * STAR - Inherited |
0fba6e63 DS |
33 | */ |
34 | #define PIM_OIF_FLAG_PROTO_IGMP (1 << 0) | |
35 | #define PIM_OIF_FLAG_PROTO_PIM (1 << 1) | |
11e0acfb DS |
36 | #define PIM_OIF_FLAG_PROTO_STAR (1 << 2) |
37 | #define PIM_OIF_FLAG_PROTO_VXLAN (1 << 3) | |
d45432cd AK |
38 | #define PIM_OIF_FLAG_PROTO_ANY \ |
39 | (PIM_OIF_FLAG_PROTO_IGMP | PIM_OIF_FLAG_PROTO_PIM \ | |
11e0acfb | 40 | | PIM_OIF_FLAG_PROTO_STAR | PIM_OIF_FLAG_PROTO_VXLAN) |
12e41d03 | 41 | |
5923b739 AK |
42 | /* OIF is present in the OIL but must not be used for forwarding traffic */ |
43 | #define PIM_OIF_FLAG_MUTE (1 << 4) | |
1865a44a DS |
44 | /* |
45 | * We need a pimreg vif id from the kernel. | |
46 | * Since ifindex == vif id for most cases and the number | |
47 | * of expected interfaces is at most 100, using MAXVIFS -1 | |
48 | * is probably ok. | |
49 | * Don't come running to me if this assumption is bad, | |
50 | * fix it. | |
51 | */ | |
e34a317a DS |
52 | #define PIM_OIF_PIM_REGISTER_VIF 0 |
53 | #define PIM_MAX_USABLE_VIFS (MAXVIFS - 1) | |
1865a44a | 54 | |
d62a17ae | 55 | struct channel_counts { |
56 | unsigned long long lastused; | |
cd333cf9 | 57 | unsigned long origpktcnt; |
d62a17ae | 58 | unsigned long pktcnt; |
59 | unsigned long oldpktcnt; | |
cd333cf9 | 60 | unsigned long origbytecnt; |
d62a17ae | 61 | unsigned long bytecnt; |
62 | unsigned long oldbytecnt; | |
cd333cf9 | 63 | unsigned long origwrong_if; |
d62a17ae | 64 | unsigned long wrong_if; |
65 | unsigned long oldwrong_if; | |
3667e8a0 DS |
66 | }; |
67 | ||
12e41d03 DL |
68 | /* |
69 | qpim_channel_oil_list holds a list of struct channel_oil. | |
70 | ||
71 | Each channel_oil.oil is used to control an (S,G) entry in the Kernel | |
72 | Multicast Forwarding Cache. | |
bbe598df SP |
73 | |
74 | There is a case when we create a channel_oil but don't install in the kernel | |
75 | ||
76 | Case where (S, G) entry not installed in the kernel: | |
77 | FRR receives IGMP/PIM (*, G) join and RP is not configured or | |
78 | not-reachable, then create a channel_oil for the group G with the incoming | |
79 | interface(channel_oil.oil.mfcc_parent) as invalid i.e "MAXVIF" and populate | |
80 | the outgoing interface where join is received. Keep this entry in the stack, | |
81 | but don't install in the kernel(channel_oil.installed = 0). | |
82 | ||
83 | Case where (S, G) entry installed in the kernel: | |
84 | When RP is configured and is reachable for the group G, and receiving a | |
85 | join if channel_oil is already present then populate the incoming interface | |
86 | and install the entry in the kernel, if channel_oil not present, then create | |
87 | a new_channel oil(channel_oil.installed = 1). | |
88 | ||
89 | is_valid: indicate if this entry is valid to get installed in kernel. | |
90 | installed: indicate if this entry is installed in the kernel. | |
91 | ||
12e41d03 | 92 | */ |
7315ecda | 93 | PREDECL_RBTREE_UNIQ(rb_pim_oil) |
12e41d03 DL |
94 | |
95 | struct channel_oil { | |
856e863f DS |
96 | struct pim_instance *pim; |
97 | ||
7315ecda DS |
98 | struct rb_pim_oil_item oil_rb; |
99 | ||
d62a17ae | 100 | struct mfcctl oil; |
101 | int installed; | |
102 | int oil_inherited_rescan; | |
103 | int oil_size; | |
104 | int oil_ref_count; | |
105 | time_t oif_creation[MAXVIFS]; | |
106 | uint32_t oif_flags[MAXVIFS]; | |
107 | struct channel_counts cc; | |
108 | struct pim_upstream *up; | |
e7cd85bd | 109 | time_t mroute_creation; |
12e41d03 DL |
110 | }; |
111 | ||
7315ecda DS |
112 | extern int pim_channel_oil_compare(const struct channel_oil *c1, |
113 | const struct channel_oil *c2); | |
114 | DECLARE_RBTREE_UNIQ(rb_pim_oil, struct channel_oil, oil_rb, | |
115 | pim_channel_oil_compare) | |
116 | ||
117 | ||
040d86ad DS |
118 | extern struct list *pim_channel_oil_list; |
119 | ||
611925dc DS |
120 | void pim_oil_init(struct pim_instance *pim); |
121 | void pim_oil_terminate(struct pim_instance *pim); | |
040d86ad | 122 | |
12e41d03 | 123 | void pim_channel_oil_free(struct channel_oil *c_oil); |
4d9ad5dc MS |
124 | struct channel_oil *pim_find_channel_oil(struct pim_instance *pim, |
125 | struct prefix_sg *sg); | |
611925dc DS |
126 | struct channel_oil *pim_channel_oil_add(struct pim_instance *pim, |
127 | struct prefix_sg *sg, | |
7984af18 | 128 | const char *name); |
afb2f470 DS |
129 | void pim_channel_oil_change_iif(struct pim_instance *pim, |
130 | struct channel_oil *c_oil, int input_vif_index, | |
131 | const char *name); | |
a155fed5 | 132 | struct channel_oil *pim_channel_oil_del(struct channel_oil *c_oil, |
17823cdd | 133 | const char *name); |
12e41d03 | 134 | |
d62a17ae | 135 | int pim_channel_add_oif(struct channel_oil *c_oil, struct interface *oif, |
1b249e70 | 136 | uint32_t proto_mask, const char *caller); |
d62a17ae | 137 | int pim_channel_del_oif(struct channel_oil *c_oil, struct interface *oif, |
1b249e70 | 138 | uint32_t proto_mask, const char *caller); |
1865a44a | 139 | |
d62a17ae | 140 | int pim_channel_oil_empty(struct channel_oil *c_oil); |
781a1745 | 141 | |
d62a17ae | 142 | char *pim_channel_oil_dump(struct channel_oil *c_oil, char *buf, size_t size); |
5923b739 AK |
143 | |
144 | void pim_channel_update_oif_mute(struct channel_oil *c_oil, | |
145 | struct pim_interface *pim_ifp); | |
a155fed5 AK |
146 | |
147 | void pim_channel_oil_upstream_deref(struct channel_oil *c_oil); | |
1537a668 | 148 | void pim_channel_del_inherited_oif(struct channel_oil *c_oil, |
17823cdd | 149 | struct interface *oif, const char *caller); |
1537a668 | 150 | |
12e41d03 | 151 | #endif /* PIM_OIL_H */ |