FD.io VPP  v19.01.3-6-g70449b9b9
Vector Packet Processing
vxlan_gbp_api.c
Go to the documentation of this file.
1 /*
2  *------------------------------------------------------------------
3  * vxlan_gbp_api.c - vxlan gbp api
4  *
5  * Copyright (c) 2018 Cisco and/or its affiliates.
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at:
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  *------------------------------------------------------------------
18  */
19 
20 #include <vnet/vnet.h>
21 #include <vlibmemory/api.h>
22 
23 #include <vnet/interface.h>
24 #include <vnet/api_errno.h>
25 #include <vnet/feature/feature.h>
27 #include <vnet/fib/fib_table.h>
28 #include <vnet/ip/ip_types_api.h>
29 
30 #include <vnet/vnet_msg_enum.h>
31 
32 #define vl_typedefs /* define message structures */
33 #include <vnet/vnet_all_api_h.h>
34 #undef vl_typedefs
35 
36 #define vl_endianfun /* define message structures */
37 #include <vnet/vnet_all_api_h.h>
38 #undef vl_endianfun
39 
40 /* instantiate all the print functions we know about */
41 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
42 #define vl_printfun
43 #include <vnet/vnet_all_api_h.h>
44 #undef vl_printfun
45 
47 
48 #define foreach_vpe_api_msg \
49 _(SW_INTERFACE_SET_VXLAN_GBP_BYPASS, sw_interface_set_vxlan_gbp_bypass) \
50 _(VXLAN_GBP_TUNNEL_ADD_DEL, vxlan_gbp_tunnel_add_del) \
51 _(VXLAN_GBP_TUNNEL_DUMP, vxlan_gbp_tunnel_dump)
52 
53 static void
56 {
57  vl_api_sw_interface_set_vxlan_gbp_bypass_reply_t *rmp;
58  int rv = 0;
59  u32 sw_if_index = ntohl (mp->sw_if_index);
60 
62 
63  vnet_int_vxlan_gbp_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
65 
66  REPLY_MACRO (VL_API_SW_INTERFACE_SET_VXLAN_GBP_BYPASS_REPLY);
67 }
68 
71 {
73  ip46_address_t src, dst;
74  ip46_type_t itype;
75  int rv = 0;
76  u32 fib_index;
77 
78  itype = ip_address_decode (&mp->tunnel.src, &src);
79  itype = ip_address_decode (&mp->tunnel.dst, &dst);
80 
81  fib_index = fib_table_find (fib_proto_from_ip46 (itype),
82  ntohl (mp->tunnel.encap_table_id));
83  if (fib_index == ~0)
84  {
85  rv = VNET_API_ERROR_NO_SUCH_FIB;
86  goto out;
87  }
88 
90  .is_add = mp->is_add,
91  .is_ip6 = (itype == IP46_TYPE_IP6),
92  .instance = ntohl (mp->tunnel.instance),
93  .mcast_sw_if_index = ntohl (mp->tunnel.mcast_sw_if_index),
94  .encap_fib_index = fib_index,
95  .vni = ntohl (mp->tunnel.vni),
96  .dst = dst,
97  .src = src,
99  };
100 
101  /* Check src & dst are different */
102  if (ip46_address_cmp (&a.dst, &a.src) == 0)
103  {
104  rv = VNET_API_ERROR_SAME_SRC_DST;
105  goto out;
106  }
107  if (ip46_address_is_multicast (&a.dst) &&
109  {
110  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
111  goto out;
112  }
113 
114  u32 sw_if_index = ~0;
115  rv = vnet_vxlan_gbp_tunnel_add_del (&a, &sw_if_index);
116 
117 out:
118  /* *INDENT-OFF* */
119  REPLY_MACRO2(VL_API_VXLAN_GBP_TUNNEL_ADD_DEL_REPLY,
120  ({
121  rmp->sw_if_index = ntohl (sw_if_index);
122  }));
123  /* *INDENT-ON* */
124 }
125 
128 {
130  ip46_type_t itype = (ip46_address_is_ip4 (&t->dst) ?
132 
133  rmp = vl_msg_api_alloc (sizeof (*rmp));
134  clib_memset (rmp, 0, sizeof (*rmp));
135  rmp->_vl_msg_id = ntohs (VL_API_VXLAN_GBP_TUNNEL_DETAILS);
136 
137  ip_address_encode (&t->src, itype, &rmp->tunnel.src);
138  ip_address_encode (&t->dst, itype, &rmp->tunnel.dst);
139  rmp->tunnel.encap_table_id =
141 
142  rmp->tunnel.instance = htonl (t->user_instance);
143  rmp->tunnel.mcast_sw_if_index = htonl (t->mcast_sw_if_index);
144  rmp->tunnel.vni = htonl (t->vni);
145  rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
146  rmp->context = context;
147 
148  vl_api_send_msg (reg, (u8 *) rmp);
149 }
150 
153 {
158 
160  if (!reg)
161  return;
162 
163  sw_if_index = ntohl (mp->sw_if_index);
164 
165  if (~0 == sw_if_index)
166  {
167  /* *INDENT-OFF* */
168  pool_foreach (t, vxm->tunnels,
169  ({
170  send_vxlan_gbp_tunnel_details(t, reg, mp->context);
171  }));
172  /* *INDENT-ON* */
173  }
174  else
175  {
176  if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
177  (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
178  {
179  return;
180  }
183  }
184 }
185 
186 /*
187  * vpe_api_hookup
188  * Add vpe's API message handlers to the table.
189  * vlib has already mapped shared memory and
190  * added the client registration handlers.
191  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
192  */
193 #define vl_msg_name_crc_list
194 #include <vnet/vnet_all_api_h.h>
195 #undef vl_msg_name_crc_list
196 
197 static void
199 {
200 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
201  foreach_vl_msg_name_crc_vxlan_gbp;
202 #undef _
203 }
204 
205 static clib_error_t *
207 {
208  api_main_t *am = &api_main;
209 
210 #define _(N,n) \
211  vl_msg_api_set_handlers(VL_API_##N, #n, \
212  vl_api_##n##_t_handler, \
213  vl_noop_handler, \
214  vl_api_##n##_t_endian, \
215  vl_api_##n##_t_print, \
216  sizeof(vl_api_##n##_t), 1);
218 #undef _
219 
220  /*
221  * Set up the (msg_name, crc, message-id) table
222  */
224 
225  return 0;
226 }
227 
229 
230 /*
231  * fd.io coding-style-patch-verification: ON
232  *
233  * Local Variables:
234  * eval: (c-set-style "gnu")
235  * End:
236  */
vl_api_vxlan_gbp_tunnel_t tunnel
Definition: vxlan_gbp.api:50
static void vl_api_sw_interface_set_vxlan_gbp_bypass_t_handler(vl_api_sw_interface_set_vxlan_gbp_bypass_t *mp)
Definition: vxlan_gbp_api.c:55
vl_api_address_t src
Definition: vxlan_gbp.api:32
#define foreach_vpe_api_msg
Definition: vxlan_gbp_api.c:48
Create or delete a VXLAN-GBP tunnel.
Definition: vxlan_gbp.api:45
a
Definition: bitmap.h:538
VLIB_API_INIT_FUNCTION(vxlan_gbp_api_hookup)
#define REPLY_MACRO2(t, body)
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
static void vl_api_send_msg(vl_api_registration_t *rp, u8 *elem)
Definition: api.h:34
int vnet_vxlan_gbp_tunnel_add_del(vnet_vxlan_gbp_tunnel_add_del_args_t *a, u32 *sw_if_indexp)
Definition: vxlan_gbp.c:383
static void setup_message_id_table(api_main_t *am)
vxlan_gbp_main_t vxlan_gbp_main
Definition: vxlan_gbp.c:33
void * vl_msg_api_alloc(int nbytes)
#define ip46_address_cmp(ip46_1, ip46_2)
Definition: ip6_packet.h:92
unsigned char u8
Definition: types.h:56
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip6_packet.h:178
vl_api_vxlan_gbp_tunnel_t tunnel
Definition: vxlan_gbp.api:70
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:490
u32 sw_if_index
Definition: vxlan_gbp.api:37
unsigned int u32
Definition: types.h:88
u32 fib_table_find(fib_protocol_t proto, u32 table_id)
Get the index of the FIB for a Table-ID.
Definition: fib_table.c:1064
ip46_type_t ip_address_decode(const vl_api_address_t *in, ip46_address_t *out)
Definition: ip_types_api.c:59
fib_protocol_t fib_proto_from_ip46(ip46_type_t iproto)
Convert from ip46_type to fib_protocol.
Definition: fib_types.c:303
#define REPLY_MACRO(t)
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:202
#define ip46_address_is_ip4(ip46)
Definition: ip6_packet.h:88
An API client registration, only in vpp/vlib.
Definition: api_common.h:45
#define BAD_SW_IF_INDEX_LABEL
static uword vnet_sw_if_index_is_api_valid(u32 sw_if_index)
vlib_main_t * vm
Definition: buffer.c:301
vl_api_address_t dst
Definition: vxlan_gbp.api:33
static void vl_api_vxlan_gbp_tunnel_add_del_t_handler(vl_api_vxlan_gbp_tunnel_add_del_t *mp)
Definition: vxlan_gbp_api.c:70
static void vl_api_vxlan_gbp_tunnel_dump_t_handler(vl_api_vxlan_gbp_tunnel_dump_t *mp)
static void send_vxlan_gbp_tunnel_details(vxlan_gbp_tunnel_t *t, vl_api_registration_t *reg, u32 context)
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:56
ip46_address_t dst
Definition: vxlan_gbp.h:86
ip46_type_t
Definition: ip6_packet.h:70
u32 fib_table_get_table_id(u32 fib_index, fib_protocol_t proto)
Get the Table-ID of the FIB from protocol and index.
Definition: fib_table.c:1053
ip46_address_t src
Definition: vxlan_gbp.h:85
Interface set vxlan-bypass request.
Definition: vxlan_gbp.api:80
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
vxlan_gbp_tunnel_t * tunnels
Definition: vxlan_gbp.h:166
void ip_address_encode(const ip46_address_t *in, ip46_type_t type, vl_api_address_t *out)
Definition: ip_types_api.c:76
api_main_t api_main
Definition: api_shared.c:35
static clib_error_t * vxlan_gbp_api_hookup(vlib_main_t *vm)
void vnet_int_vxlan_gbp_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: vxlan_gbp.c:969
u32 * tunnel_index_by_sw_if_index
Definition: vxlan_gbp.h:181
#define VALIDATE_SW_IF_INDEX(mp)