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1 | /* | |
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 | */ | |
19 | ||
20 | #ifndef PIM_IFACE_H | |
21 | #define PIM_IFACE_H | |
22 | ||
23 | #include <zebra.h> | |
24 | ||
25 | #include "if.h" | |
26 | #include "vty.h" | |
27 | #include "vrf.h" | |
28 | #include "zclient.h" | |
29 | #include "ferr.h" | |
30 | ||
31 | #include "pim_igmp.h" | |
32 | #include "pim_upstream.h" | |
33 | #include "bfd.h" | |
34 | ||
35 | #define PIM_IF_MASK_PIM (1 << 0) | |
36 | #define PIM_IF_MASK_IGMP (1 << 1) | |
37 | #define PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS (1 << 2) | |
38 | #define PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION (1 << 3) | |
39 | ||
40 | #define PIM_IF_IS_DELETED(ifp) ((ifp)->ifindex == IFINDEX_INTERNAL) | |
41 | ||
42 | #define PIM_IF_TEST_PIM(options) (PIM_IF_MASK_PIM & (options)) | |
43 | #define PIM_IF_TEST_IGMP(options) (PIM_IF_MASK_IGMP & (options)) | |
44 | #define PIM_IF_TEST_IGMP_LISTEN_ALLROUTERS(options) (PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS & (options)) | |
45 | #define PIM_IF_TEST_PIM_CAN_DISABLE_JOIN_SUPRESSION(options) (PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION & (options)) | |
46 | ||
47 | #define PIM_IF_DO_PIM(options) ((options) |= PIM_IF_MASK_PIM) | |
48 | #define PIM_IF_DO_IGMP(options) ((options) |= PIM_IF_MASK_IGMP) | |
49 | #define PIM_IF_DO_IGMP_LISTEN_ALLROUTERS(options) ((options) |= PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS) | |
50 | #define PIM_IF_DO_PIM_CAN_DISABLE_JOIN_SUPRESSION(options) ((options) |= PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION) | |
51 | ||
52 | #define PIM_IF_DONT_PIM(options) ((options) &= ~PIM_IF_MASK_PIM) | |
53 | #define PIM_IF_DONT_IGMP(options) ((options) &= ~PIM_IF_MASK_IGMP) | |
54 | #define PIM_IF_DONT_IGMP_LISTEN_ALLROUTERS(options) ((options) &= ~PIM_IF_MASK_IGMP_LISTEN_ALLROUTERS) | |
55 | #define PIM_IF_DONT_PIM_CAN_DISABLE_JOIN_SUPRESSION(options) ((options) &= ~PIM_IF_MASK_PIM_CAN_DISABLE_JOIN_SUPRESSION) | |
56 | ||
57 | #define PIM_I_am_DR(pim_ifp) (pim_ifp)->pim_dr_addr.s_addr == (pim_ifp)->primary_address.s_addr | |
58 | ||
59 | struct pim_iface_upstream_switch { | |
60 | struct in_addr address; | |
61 | struct list *us; | |
62 | }; | |
63 | ||
64 | enum pim_secondary_addr_flags { | |
65 | PIM_SEC_ADDRF_NONE = 0, | |
66 | PIM_SEC_ADDRF_STALE = (1 << 0) | |
67 | }; | |
68 | ||
69 | struct pim_secondary_addr { | |
70 | struct prefix addr; | |
71 | enum pim_secondary_addr_flags flags; | |
72 | }; | |
73 | ||
74 | struct pim_interface { | |
75 | uint32_t options; /* bit vector */ | |
76 | ifindex_t mroute_vif_index; | |
77 | struct pim_instance *pim; | |
78 | ||
79 | struct in_addr primary_address; /* remember addr to detect change */ | |
80 | struct list *sec_addr_list; /* list of struct pim_secondary_addr */ | |
81 | struct in_addr update_source; /* user can statically set the primary | |
82 | * address of the interface */ | |
83 | ||
84 | int igmp_version; /* IGMP version */ | |
85 | int igmp_default_robustness_variable; /* IGMPv3 QRV */ | |
86 | int igmp_default_query_interval; /* IGMPv3 secs between general | |
87 | queries */ | |
88 | int igmp_query_max_response_time_dsec; /* IGMPv3 Max Response Time in | |
89 | dsecs for general queries */ | |
90 | int igmp_specific_query_max_response_time_dsec; /* IGMPv3 Max Response | |
91 | Time in dsecs for | |
92 | specific queries */ | |
93 | struct list *igmp_socket_list; /* list of struct igmp_sock */ | |
94 | struct list *igmp_join_list; /* list of struct igmp_join */ | |
95 | ||
96 | int pim_sock_fd; /* PIM socket file descriptor */ | |
97 | struct thread *t_pim_sock_read; /* thread for reading PIM socket */ | |
98 | int64_t pim_sock_creation; /* timestamp of PIM socket creation */ | |
99 | ||
100 | struct thread *t_pim_hello_timer; | |
101 | int pim_hello_period; | |
102 | int pim_default_holdtime; | |
103 | int pim_triggered_hello_delay; | |
104 | uint32_t pim_generation_id; | |
105 | uint16_t pim_propagation_delay_msec; /* config */ | |
106 | uint16_t pim_override_interval_msec; /* config */ | |
107 | struct list *pim_neighbor_list; /* list of struct pim_neighbor */ | |
108 | struct list *upstream_switch_list; | |
109 | struct pim_ifchannel_rb ifchannel_rb; | |
110 | ||
111 | /* neighbors without lan_delay */ | |
112 | int pim_number_of_nonlandelay_neighbors; | |
113 | uint16_t pim_neighbors_highest_propagation_delay_msec; | |
114 | uint16_t pim_neighbors_highest_override_interval_msec; | |
115 | ||
116 | /* DR Election */ | |
117 | int64_t pim_dr_election_last; /* timestamp */ | |
118 | int pim_dr_election_count; | |
119 | int pim_dr_election_changes; | |
120 | struct in_addr pim_dr_addr; | |
121 | uint32_t pim_dr_priority; /* config */ | |
122 | int pim_dr_num_nondrpri_neighbors; /* neighbors without dr_pri */ | |
123 | ||
124 | /* boundary prefix-list */ | |
125 | char *boundary_oil_plist; | |
126 | ||
127 | int64_t pim_ifstat_start; /* start timestamp for stats */ | |
128 | uint32_t pim_ifstat_hello_sent; | |
129 | uint32_t pim_ifstat_hello_sendfail; | |
130 | uint32_t pim_ifstat_hello_recv; | |
131 | uint32_t pim_ifstat_hello_recvfail; | |
132 | uint32_t pim_ifstat_join_recv; | |
133 | uint32_t pim_ifstat_join_send; | |
134 | uint32_t pim_ifstat_prune_recv; | |
135 | uint32_t pim_ifstat_prune_send; | |
136 | uint32_t pim_ifstat_reg_recv; | |
137 | uint32_t pim_ifstat_reg_send; | |
138 | uint32_t pim_ifstat_reg_stop_recv; | |
139 | uint32_t pim_ifstat_reg_stop_send; | |
140 | uint32_t pim_ifstat_assert_recv; | |
141 | uint32_t pim_ifstat_assert_send; | |
142 | struct bfd_info *bfd_info; | |
143 | }; | |
144 | ||
145 | /* | |
146 | if default_holdtime is set (>= 0), use it; | |
147 | otherwise default_holdtime is 3.5 * hello_period | |
148 | */ | |
149 | #define PIM_IF_DEFAULT_HOLDTIME(pim_ifp) \ | |
150 | (((pim_ifp)->pim_default_holdtime < 0) \ | |
151 | ? ((pim_ifp)->pim_hello_period * 7 / 2) \ | |
152 | : ((pim_ifp)->pim_default_holdtime)) | |
153 | ||
154 | void pim_if_init(struct pim_instance *pim); | |
155 | void pim_if_terminate(struct pim_instance *pim); | |
156 | ||
157 | struct pim_interface *pim_if_new(struct interface *ifp, bool igmp, bool pim, | |
158 | bool ispimreg); | |
159 | void pim_if_delete(struct interface *ifp); | |
160 | void pim_if_addr_add(struct connected *ifc); | |
161 | void pim_if_addr_del(struct connected *ifc, int force_prim_as_any); | |
162 | void pim_if_addr_add_all(struct interface *ifp); | |
163 | void pim_if_addr_del_all(struct interface *ifp); | |
164 | void pim_if_addr_del_all_igmp(struct interface *ifp); | |
165 | void pim_if_addr_del_all_pim(struct interface *ifp); | |
166 | ||
167 | int pim_if_add_vif(struct interface *ifp, bool ispimreg); | |
168 | int pim_if_del_vif(struct interface *ifp); | |
169 | void pim_if_add_vif_all(struct pim_instance *pim); | |
170 | void pim_if_del_vif_all(struct pim_instance *pim); | |
171 | ||
172 | struct interface *pim_if_find_by_vif_index(struct pim_instance *pim, | |
173 | ifindex_t vif_index); | |
174 | int pim_if_find_vifindex_by_ifindex(struct pim_instance *pim, | |
175 | ifindex_t ifindex); | |
176 | ||
177 | int pim_if_lan_delay_enabled(struct interface *ifp); | |
178 | uint16_t pim_if_effective_propagation_delay_msec(struct interface *ifp); | |
179 | uint16_t pim_if_effective_override_interval_msec(struct interface *ifp); | |
180 | uint16_t pim_if_jp_override_interval_msec(struct interface *ifp); | |
181 | struct pim_neighbor *pim_if_find_neighbor(struct interface *ifp, | |
182 | struct in_addr addr); | |
183 | ||
184 | long pim_if_t_suppressed_msec(struct interface *ifp); | |
185 | int pim_if_t_override_msec(struct interface *ifp); | |
186 | ||
187 | struct in_addr pim_find_primary_addr(struct interface *ifp); | |
188 | ||
189 | ferr_r pim_if_igmp_join_add(struct interface *ifp, struct in_addr group_addr, | |
190 | struct in_addr source_addr); | |
191 | int pim_if_igmp_join_del(struct interface *ifp, struct in_addr group_addr, | |
192 | struct in_addr source_addr); | |
193 | ||
194 | void pim_if_update_could_assert(struct interface *ifp); | |
195 | ||
196 | void pim_if_assert_on_neighbor_down(struct interface *ifp, | |
197 | struct in_addr neigh_addr); | |
198 | ||
199 | void pim_if_rpf_interface_changed(struct interface *old_rpf_ifp, | |
200 | struct pim_upstream *up); | |
201 | ||
202 | void pim_if_update_join_desired(struct pim_interface *pim_ifp); | |
203 | ||
204 | void pim_if_update_assert_tracking_desired(struct interface *ifp); | |
205 | ||
206 | void pim_if_create_pimreg(struct pim_instance *pim); | |
207 | ||
208 | int pim_if_connected_to_source(struct interface *ifp, struct in_addr src); | |
209 | int pim_update_source_set(struct interface *ifp, struct in_addr source); | |
210 | ||
211 | bool pim_if_is_vrf_device(struct interface *ifp); | |
212 | ||
213 | int pim_if_ifchannel_count(struct pim_interface *pim_ifp); | |
214 | #endif /* PIM_IFACE_H */ |