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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" | |
24 | ||
0fba6e63 DS |
25 | /* |
26 | * Where did we get this (S,G) from? | |
27 | * | |
28 | * IGMP - Learned from IGMP | |
29 | * PIM - Learned from PIM | |
30 | * SOURCE - Learned from Source multicast packet received | |
781a1745 | 31 | * STAR - Inherited |
0fba6e63 DS |
32 | */ |
33 | #define PIM_OIF_FLAG_PROTO_IGMP (1 << 0) | |
34 | #define PIM_OIF_FLAG_PROTO_PIM (1 << 1) | |
11e0acfb DS |
35 | #define PIM_OIF_FLAG_PROTO_STAR (1 << 2) |
36 | #define PIM_OIF_FLAG_PROTO_VXLAN (1 << 3) | |
d45432cd AK |
37 | #define PIM_OIF_FLAG_PROTO_ANY \ |
38 | (PIM_OIF_FLAG_PROTO_IGMP | PIM_OIF_FLAG_PROTO_PIM \ | |
11e0acfb | 39 | | PIM_OIF_FLAG_PROTO_STAR | PIM_OIF_FLAG_PROTO_VXLAN) |
12e41d03 | 40 | |
1865a44a DS |
41 | /* |
42 | * We need a pimreg vif id from the kernel. | |
43 | * Since ifindex == vif id for most cases and the number | |
44 | * of expected interfaces is at most 100, using MAXVIFS -1 | |
45 | * is probably ok. | |
46 | * Don't come running to me if this assumption is bad, | |
47 | * fix it. | |
48 | */ | |
e34a317a DS |
49 | #define PIM_OIF_PIM_REGISTER_VIF 0 |
50 | #define PIM_MAX_USABLE_VIFS (MAXVIFS - 1) | |
1865a44a | 51 | |
d62a17ae | 52 | struct channel_counts { |
53 | unsigned long long lastused; | |
cd333cf9 | 54 | unsigned long origpktcnt; |
d62a17ae | 55 | unsigned long pktcnt; |
56 | unsigned long oldpktcnt; | |
cd333cf9 | 57 | unsigned long origbytecnt; |
d62a17ae | 58 | unsigned long bytecnt; |
59 | unsigned long oldbytecnt; | |
cd333cf9 | 60 | unsigned long origwrong_if; |
d62a17ae | 61 | unsigned long wrong_if; |
62 | unsigned long oldwrong_if; | |
3667e8a0 DS |
63 | }; |
64 | ||
12e41d03 DL |
65 | /* |
66 | qpim_channel_oil_list holds a list of struct channel_oil. | |
67 | ||
68 | Each channel_oil.oil is used to control an (S,G) entry in the Kernel | |
69 | Multicast Forwarding Cache. | |
bbe598df SP |
70 | |
71 | There is a case when we create a channel_oil but don't install in the kernel | |
72 | ||
73 | Case where (S, G) entry not installed in the kernel: | |
74 | FRR receives IGMP/PIM (*, G) join and RP is not configured or | |
75 | not-reachable, then create a channel_oil for the group G with the incoming | |
76 | interface(channel_oil.oil.mfcc_parent) as invalid i.e "MAXVIF" and populate | |
77 | the outgoing interface where join is received. Keep this entry in the stack, | |
78 | but don't install in the kernel(channel_oil.installed = 0). | |
79 | ||
80 | Case where (S, G) entry installed in the kernel: | |
81 | When RP is configured and is reachable for the group G, and receiving a | |
82 | join if channel_oil is already present then populate the incoming interface | |
83 | and install the entry in the kernel, if channel_oil not present, then create | |
84 | a new_channel oil(channel_oil.installed = 1). | |
85 | ||
86 | is_valid: indicate if this entry is valid to get installed in kernel. | |
87 | installed: indicate if this entry is installed in the kernel. | |
88 | ||
12e41d03 DL |
89 | */ |
90 | ||
91 | struct channel_oil { | |
856e863f DS |
92 | struct pim_instance *pim; |
93 | ||
d62a17ae | 94 | struct mfcctl oil; |
95 | int installed; | |
96 | int oil_inherited_rescan; | |
97 | int oil_size; | |
98 | int oil_ref_count; | |
99 | time_t oif_creation[MAXVIFS]; | |
100 | uint32_t oif_flags[MAXVIFS]; | |
101 | struct channel_counts cc; | |
102 | struct pim_upstream *up; | |
e7cd85bd | 103 | time_t mroute_creation; |
12e41d03 DL |
104 | }; |
105 | ||
040d86ad DS |
106 | extern struct list *pim_channel_oil_list; |
107 | ||
611925dc DS |
108 | void pim_oil_init(struct pim_instance *pim); |
109 | void pim_oil_terminate(struct pim_instance *pim); | |
040d86ad | 110 | |
12e41d03 | 111 | void pim_channel_oil_free(struct channel_oil *c_oil); |
4d9ad5dc MS |
112 | struct channel_oil *pim_find_channel_oil(struct pim_instance *pim, |
113 | struct prefix_sg *sg); | |
611925dc DS |
114 | struct channel_oil *pim_channel_oil_add(struct pim_instance *pim, |
115 | struct prefix_sg *sg, | |
12e41d03 DL |
116 | int input_vif_index); |
117 | void pim_channel_oil_del(struct channel_oil *c_oil); | |
118 | ||
d62a17ae | 119 | int pim_channel_add_oif(struct channel_oil *c_oil, struct interface *oif, |
120 | uint32_t proto_mask); | |
121 | int pim_channel_del_oif(struct channel_oil *c_oil, struct interface *oif, | |
1865a44a DS |
122 | uint32_t proto_mask); |
123 | ||
d62a17ae | 124 | int pim_channel_oil_empty(struct channel_oil *c_oil); |
781a1745 | 125 | |
d62a17ae | 126 | char *pim_channel_oil_dump(struct channel_oil *c_oil, char *buf, size_t size); |
12e41d03 | 127 | #endif /* PIM_OIL_H */ |