Line data Source code
1 : /*
2 : * Copyright (c) 2017 SUSE LLC.
3 : * Licensed under the Apache License, Version 2.0 (the "License");
4 : * you may not use this file except in compliance with the License.
5 : * You may obtain a copy of the License at:
6 : *
7 : * http://www.apache.org/licenses/LICENSE-2.0
8 : *
9 : * Unless required by applicable law or agreed to in writing, software
10 : * distributed under the License is distributed on an "AS IS" BASIS,
11 : * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 : * See the License for the specific language governing permissions and
13 : * limitations under the License.
14 : *------------------------------------------------------------------
15 : */
16 :
17 : #include <vnet/vnet.h>
18 : #include <vlibmemory/api.h>
19 :
20 : #include <vnet/interface.h>
21 : #include <vnet/api_errno.h>
22 : #include <vnet/feature/feature.h>
23 : #include <vnet/fib/fib_table.h>
24 : #include <vnet/ip/ip_types_api.h>
25 :
26 : #include <geneve/geneve.h>
27 :
28 : /* define message IDs */
29 : #include <vnet/format_fns.h>
30 : #include <geneve/geneve.api_enum.h>
31 : #include <geneve/geneve.api_types.h>
32 :
33 : /**
34 : * Base message ID fot the plugin
35 : */
36 : static u32 geneve_base_msg_id;
37 : #define REPLY_MSG_ID_BASE geneve_base_msg_id
38 :
39 : #include <vlibapi/api_helper_macros.h>
40 :
41 : static void
42 0 : vl_api_sw_interface_set_geneve_bypass_t_handler
43 : (vl_api_sw_interface_set_geneve_bypass_t * mp)
44 : {
45 : vl_api_sw_interface_set_geneve_bypass_reply_t *rmp;
46 0 : int rv = 0;
47 0 : u32 sw_if_index = ntohl (mp->sw_if_index);
48 :
49 0 : VALIDATE_SW_IF_INDEX (mp);
50 :
51 0 : vnet_int_geneve_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
52 0 : BAD_SW_IF_INDEX_LABEL;
53 :
54 0 : REPLY_MACRO (VL_API_SW_INTERFACE_SET_GENEVE_BYPASS_REPLY);
55 : }
56 :
57 62 : static void vl_api_geneve_add_del_tunnel_t_handler
58 : (vl_api_geneve_add_del_tunnel_t * mp)
59 : {
60 : vl_api_geneve_add_del_tunnel_reply_t *rmp;
61 62 : int rv = 0;
62 62 : ip4_main_t *im = &ip4_main;
63 :
64 62 : uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
65 62 : if (!p)
66 : {
67 0 : rv = VNET_API_ERROR_NO_SUCH_FIB;
68 0 : goto out;
69 : }
70 :
71 62 : vnet_geneve_add_del_tunnel_args_t a = {
72 62 : .is_add = mp->is_add,
73 62 : .is_ip6 = mp->remote_address.af,
74 62 : .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
75 62 : .encap_fib_index = p[0],
76 62 : .decap_next_index = ntohl (mp->decap_next_index),
77 62 : .vni = ntohl (mp->vni),
78 : };
79 :
80 62 : ip_address_decode (&mp->remote_address, &a.remote);
81 62 : ip_address_decode (&mp->local_address, &a.local);
82 :
83 : /* Check src & dst are different */
84 62 : if (ip46_address_cmp (&a.remote, &a.local) == 0)
85 : {
86 0 : rv = VNET_API_ERROR_SAME_SRC_DST;
87 0 : goto out;
88 : }
89 103 : if (ip46_address_is_multicast (&a.remote) &&
90 41 : !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
91 : {
92 0 : rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
93 0 : goto out;
94 : }
95 :
96 62 : u32 sw_if_index = ~0;
97 62 : rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
98 :
99 62 : out:
100 : /* *INDENT-OFF* */
101 62 : REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL_REPLY,
102 : ({
103 : rmp->sw_if_index = ntohl (sw_if_index);
104 : }));
105 : /* *INDENT-ON* */
106 : }
107 :
108 2 : static void vl_api_geneve_add_del_tunnel2_t_handler
109 : (vl_api_geneve_add_del_tunnel2_t * mp)
110 : {
111 : vl_api_geneve_add_del_tunnel2_reply_t *rmp;
112 2 : int rv = 0;
113 2 : ip4_main_t *im = &ip4_main;
114 :
115 2 : uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
116 2 : if (!p)
117 : {
118 0 : rv = VNET_API_ERROR_NO_SUCH_FIB;
119 0 : goto out;
120 : }
121 :
122 2 : vnet_geneve_add_del_tunnel_args_t a = {
123 2 : .is_add = mp->is_add,
124 2 : .is_ip6 = mp->remote_address.af,
125 2 : .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
126 2 : .encap_fib_index = p[0],
127 2 : .decap_next_index = ntohl (mp->decap_next_index),
128 2 : .vni = ntohl (mp->vni),
129 2 : .l3_mode = mp->l3_mode,
130 : };
131 :
132 2 : ip_address_decode (&mp->remote_address, &a.remote);
133 2 : ip_address_decode (&mp->local_address, &a.local);
134 :
135 : /* Check src & dst are different */
136 2 : if (ip46_address_cmp (&a.remote, &a.local) == 0)
137 : {
138 0 : rv = VNET_API_ERROR_SAME_SRC_DST;
139 0 : goto out;
140 : }
141 2 : if (ip46_address_is_multicast (&a.remote) &&
142 0 : !vnet_sw_if_index_is_api_valid (a.mcast_sw_if_index))
143 : {
144 0 : rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
145 0 : goto out;
146 : }
147 :
148 2 : u32 sw_if_index = ~0;
149 2 : rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
150 :
151 2 : out:
152 : /* *INDENT-OFF* */
153 2 : REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL2_REPLY,
154 : ({
155 : rmp->sw_if_index = ntohl (sw_if_index);
156 : }));
157 : /* *INDENT-ON* */
158 : }
159 :
160 0 : static void send_geneve_tunnel_details
161 : (geneve_tunnel_t * t, vl_api_registration_t * reg, u32 context)
162 : {
163 : vl_api_geneve_tunnel_details_t *rmp;
164 0 : ip4_main_t *im4 = &ip4_main;
165 0 : ip6_main_t *im6 = &ip6_main;
166 0 : u8 is_ipv6 = !ip46_address_is_ip4 (&t->remote);
167 :
168 0 : rmp = vl_msg_api_alloc (sizeof (*rmp));
169 0 : clib_memset (rmp, 0, sizeof (*rmp));
170 0 : rmp->_vl_msg_id = ntohs (VL_API_GENEVE_TUNNEL_DETAILS + REPLY_MSG_ID_BASE);
171 0 : ip_address_encode (&t->local, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
172 : &rmp->src_address);
173 0 : ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
174 : &rmp->dst_address);
175 0 : rmp->encap_vrf_id =
176 0 : htonl (is_ipv6 ? im6->fibs[t->encap_fib_index].
177 0 : ft_table_id : im4->fibs[t->encap_fib_index].ft_table_id);
178 :
179 0 : rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
180 0 : rmp->vni = htonl (t->vni);
181 0 : rmp->decap_next_index = htonl (t->decap_next_index);
182 0 : rmp->sw_if_index = htonl (t->sw_if_index);
183 0 : rmp->context = context;
184 :
185 0 : vl_api_send_msg (reg, (u8 *) rmp);
186 0 : }
187 :
188 0 : static void vl_api_geneve_tunnel_dump_t_handler
189 : (vl_api_geneve_tunnel_dump_t * mp)
190 : {
191 : vl_api_registration_t *reg;
192 0 : geneve_main_t *vxm = &geneve_main;
193 : geneve_tunnel_t *t;
194 : u32 sw_if_index;
195 :
196 0 : reg = vl_api_client_index_to_registration (mp->client_index);
197 0 : if (!reg)
198 0 : return;
199 :
200 0 : sw_if_index = ntohl (mp->sw_if_index);
201 :
202 0 : if (~0 == sw_if_index)
203 : {
204 : /* *INDENT-OFF* */
205 0 : pool_foreach (t, vxm->tunnels)
206 : {
207 0 : send_geneve_tunnel_details(t, reg, mp->context);
208 : }
209 : /* *INDENT-ON* */
210 : }
211 : else
212 : {
213 0 : if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
214 0 : (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
215 : {
216 0 : return;
217 : }
218 0 : t = &vxm->tunnels[vxm->tunnel_index_by_sw_if_index[sw_if_index]];
219 0 : send_geneve_tunnel_details (t, reg, mp->context);
220 : }
221 : }
222 :
223 : /*
224 : * geneve_api_hookup
225 : * Add geneve's API message handlers to the table.
226 : */
227 : /* API definitions */
228 : #include <vnet/format_fns.h>
229 : #include <geneve/geneve.api.c>
230 :
231 : static clib_error_t *
232 575 : geneve_api_hookup (vlib_main_t * vm)
233 : {
234 575 : api_main_t *am = vlibapi_get_main ();
235 :
236 : /*
237 : * Set up the (msg_name, crc, message-id) table
238 : */
239 575 : geneve_base_msg_id = setup_message_id_table ();
240 :
241 575 : vl_api_increase_msg_trace_size (
242 : am, VL_API_GENEVE_ADD_DEL_TUNNEL + REPLY_MSG_ID_BASE, 16 * sizeof (u32));
243 :
244 575 : return 0;
245 : }
246 :
247 1151 : VLIB_API_INIT_FUNCTION (geneve_api_hookup);
248 :
249 : #include <vlib/unix/plugin.h>
250 : #include <vpp/app/version.h>
251 :
252 : /* *INDENT-OFF* */
253 : VLIB_PLUGIN_REGISTER () = {
254 : .version = VPP_BUILD_VER,
255 : .description = "GENEVE Tunnels",
256 : };
257 : /* *INDENT-ON* */
258 :
259 : /*
260 : * fd.io coding-style-patch-verification: ON
261 : *
262 : * Local Variables:
263 : * eval: (c-set-style "gnu")
264 : * End:
265 : */
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