FD.io VPP  v18.07.1-19-g511ce25
Vector Packet Processing
igmp.api
Go to the documentation of this file.
1 /* Hey Emacs use -*- mode: C -*- */
2 /*
3  *------------------------------------------------------------------
4  * Copyright (c) 2017 Cisco and/or its affiliates.
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *------------------------------------------------------------------
17  */
18 
19 option version = "1.0.0";
20 import "vnet/ip/ip_types.api";
21 
22 /**
23  * @brief Filter mode
24  */
26  EXCLUDE = 0,
27  INCLUDE = 1,
28 };
29 
30 
31 /**
32  * @brief
33  * Used by a 'host' to enable the reception/listening of packets for a specific
34  * multicast group
35  *
36  * For each socket on which IPMulticastListen has been invoked, the
37  * system records the desired multicast reception state for that socket.
38  * That state conceptually consists of a set of records of the form:
39  *
40  * (interface, multicast-address, filter-mode, source-list)
41  *
42  * The socket state evolves in response to each invocation of
43  * IPMulticastListen on the socket, as follows:
44  *
45  * o If the requested filter mode is INCLUDE *and* the requested source
46  * list is empty, then the entry corresponding to the requested
47  * interface and multicast address is deleted if present. If no such
48  * entry is present, the request is ignored.
49  *
50  * o If the requested filter mode is EXCLUDE *or* the requested source
51  * list is non-empty, then the entry corresponding to the requested
52  * interface and multicast address, if present, is changed to contain
53  * the requested filter mode and source list. If no such entry is
54  * present, a new entry is created, using the parameters specified in
55  * the request.
56  *
57  * @param client_index - opaque cookie to identify the sender
58  * @param context - sender context, to match reply w/ request
59  * @param sw_if_index - interface sw index
60  * @param filter - filter mode
61  * @param saddr - source address
62  * @param gaddr - group address
63  */
64 typeonly define igmp_group
65 {
66  vl_api_filter_mode_t filter;
69  vl_api_ip4_address_t gaddr;
70  vl_api_ip4_address_t saddrs[n_srcs];
71 };
72 autoreply define igmp_listen
73 {
76 
78 };
79 
80 /**
81  * @brief
82  * Used by a 'router' and 'host' to enable the recption of IGMP packets.
83  * For hosts this must be called once before igmp_listen.
84  *
85  * @param client_index - opaque cookie to identify the sender
86  * @param context - sender context, to match reply w/ request
87  * @param enable - if set, enable igmp messages on configuration
88  * @param mode - Host (1) or router (0) mode
89  * @param sw_if_index - interface sw index
90  */
91 autoreply define igmp_enable_disable
92 {
95 
99 };
100 
101 /**
102  * @brief dump (S,G)s from interface
103  * @param client_index - opaque cookie to identify the sender
104  * @param context - sender context, to match reply w/ request
105  * @param sw_if_index - interface sw index (~0 for all)
106 */
107 define igmp_dump
108 {
111 
113 };
114 
115 /**
116  * @brief igmp details
117  * @param context - sender context, to match reply w/ request
118  * @param sw_if_index - interface sw index
119  * @param saddr - source address
120  * @param gaddr - group address
121  */
122 define igmp_details
123 {
125 
127  vl_api_ip4_address_t saddr;
128  vl_api_ip4_address_t gaddr;
129 };
130 
131 /** \brief remove all (S,G)s from an interface
132  @param client_index - opaque cookie to identify the sender
133  @param context - sender context, to match reply w/ request
134  @param sw_if_index - interface sw index
135 */
136 autoreply define igmp_clear_interface
137 {
140 
142 };
143 
144 /**
145  * @brief register for igmp events
146  * @param client_index - opaque cookie to identify the sender
147  * @param context - sender context, to match reply w/ request
148  * @param pid - sender's pid
149  * @param enable - 1 enable, 0 disable igmp events
150  */
151 autoreply define want_igmp_events
152 {
155 
158 };
159 
161  rpc want_igmp_events returns want_igmp_events_reply
162  events igmp_event;
163 };
164 
165 /**
166  * @brief igmp event details
167  * @param client_index - opaque cookie to identify the sender
168  * @param context - sender context, to match reply w/ request
169  * @param sw_if_index - interface sw index
170  * @param saddr - source address
171  * @param gaddr - group address
172  *@param filter - filter mode
173  */
175 {
177 
179  vl_api_filter_mode_t filter;
180  vl_api_ip4_address_t saddr;
181  vl_api_ip4_address_t gaddr;
182 };
183 
184 /**
185  * @brief enum to specify either ASM or SSM semantics
186  */
188 {
189  ASM = 0,
190  SSM = 1,
191 };
192 
193 /**
194  * @brief Definition of a Group prefix and its type
195  */
196 typedef group_prefix
197 {
198  vl_api_group_prefix_type_t type;
199  vl_api_prefix_t prefix;
200 };
201 
202 /**
203  * @brief Configure a prefix for SSM or ASM semantics
204  * @param address - Prefix address
205  * @param address_length - Prefix length
206  */
207 autoreply define igmp_group_prefix_set
208 {
211 
212  vl_api_group_prefix_t gp;
213 };
214 
215 define igmp_group_prefix_dump
216 {
219 };
220 
221 define igmp_group_prefix_details
222 {
224 
225  vl_api_group_prefix_t gp;
226 };
227 
228 
229 /*
230  * Local Variables:
231  * eval: (c-set-style "gnu")
232  * End:
233  */
int igmp_listen(vlib_main_t *vm, igmp_filter_mode_t mode, u32 sw_if_index, const ip46_address_t *saddrs, const ip46_address_t *gaddr)
igmp listen Called by a host to request reception of multicast packets
Definition: igmp.c:133
vl_api_filter_mode_t filter
Definition: igmp.api:66
Definition: igmp.api:190
vl_api_filter_mode_t filter
Definition: igmp.api:179
Definition: igmp.api:27
Definition: igmp.api:26
option version
Definition: igmp.api:19
vl_api_ip4_address_t gaddr
Definition: igmp.api:181
unsigned char u8
Definition: types.h:56
filter_mode
Filter mode.
Definition: igmp.api:25
service
Definition: igmp.api:160
unsigned int u32
Definition: types.h:88
void igmp_event(igmp_filter_mode_t filter, u32 sw_if_index, const ip46_address_t *saddr, const ip46_address_t *gaddr)
Send an IGMP event to listening parties.
Definition: igmp_api.c:382
int igmp_enable_disable(u32 sw_if_index, u8 enable, igmp_mode_t mode)
IGMP interface enable/disable.
Definition: igmp.c:340
vl_api_ip4_address_t saddr
Definition: igmp.api:180
Definition: igmp.api:189
vl_api_igmp_group_t group
Definition: igmp.api:77
vl_api_ip4_address_t gaddr
Definition: igmp.api:128
void igmp_group_prefix_set(const fib_prefix_t *pfx, igmp_group_prefix_type_t type)
Used by a 'host' to enable the reception/listening of packets for a specific multicast group...
Definition: igmp.api:64
typedef group_prefix
Definition of a Group prefix and its type.
Definition: igmp.api:197
vl_api_group_prefix_t gp
Definition: igmp.api:212
vl_api_ip4_address_t gaddr
Definition: igmp.api:69
vl_api_ip4_address_t saddr
Definition: igmp.api:127
vl_api_prefix_t prefix
Definition: igmp.api:199
group_prefix_type
enum to specify either ASM or SSM semantics
Definition: igmp.api:187
vl_api_group_prefix_t gp
Definition: igmp.api:225