FD.io VPP  v21.01.1
Vector Packet Processing
vxlan_gbp_api.c
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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 
69 static int
70 vxlan_gbp_tunnel_mode_decode (vl_api_vxlan_gbp_api_tunnel_mode_t in,
72 {
73  in = clib_net_to_host_u32 (in);
74 
75  switch (in)
76  {
79  return (0);
82  return (0);
83  }
84  return (VNET_API_ERROR_INVALID_VALUE);
85 }
86 
89 {
92  ip46_address_t src, dst;
93  ip46_type_t itype;
94  int rv = 0;
95  u32 sw_if_index = ~0;
96  u32 fib_index;
97 
98  itype = ip_address_decode (&mp->tunnel.src, &src);
99  itype = ip_address_decode (&mp->tunnel.dst, &dst);
100 
101  fib_index = fib_table_find (fib_proto_from_ip46 (itype),
102  ntohl (mp->tunnel.encap_table_id));
103  if (fib_index == ~0)
104  {
105  rv = VNET_API_ERROR_NO_SUCH_FIB;
106  goto out;
107  }
108 
109  rv = vxlan_gbp_tunnel_mode_decode (mp->tunnel.mode, &mode);
110 
111  if (rv)
112  goto out;
113 
115  .is_add = mp->is_add,
116  .is_ip6 = (itype == IP46_TYPE_IP6),
117  .instance = ntohl (mp->tunnel.instance),
118  .mcast_sw_if_index = ntohl (mp->tunnel.mcast_sw_if_index),
119  .encap_fib_index = fib_index,
120  .vni = ntohl (mp->tunnel.vni),
121  .dst = dst,
122  .src = src,
123  .mode = mode,
124  };
125 
126  /* Check src & dst are different */
127  if (ip46_address_cmp (&a.dst, &a.src) == 0)
128  {
129  rv = VNET_API_ERROR_SAME_SRC_DST;
130  goto out;
131  }
132  if (ip46_address_is_multicast (&a.dst) &&
134  {
135  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
136  goto out;
137  }
138 
139  rv = vnet_vxlan_gbp_tunnel_add_del (&a, &sw_if_index);
140 
141 out:
142  /* *INDENT-OFF* */
143  REPLY_MACRO2(VL_API_VXLAN_GBP_TUNNEL_ADD_DEL_REPLY,
144  ({
145  rmp->sw_if_index = ntohl (sw_if_index);
146  }));
147  /* *INDENT-ON* */
148 }
149 
152 {
154  ip46_type_t itype = (ip46_address_is_ip4 (&t->dst) ?
156 
157  rmp = vl_msg_api_alloc (sizeof (*rmp));
158  clib_memset (rmp, 0, sizeof (*rmp));
159  rmp->_vl_msg_id = ntohs (VL_API_VXLAN_GBP_TUNNEL_DETAILS);
160 
161  ip_address_encode (&t->src, itype, &rmp->tunnel.src);
162  ip_address_encode (&t->dst, itype, &rmp->tunnel.dst);
163  rmp->tunnel.encap_table_id =
165 
166  rmp->tunnel.instance = htonl (t->user_instance);
167  rmp->tunnel.mcast_sw_if_index = htonl (t->mcast_sw_if_index);
168  rmp->tunnel.vni = htonl (t->vni);
169  rmp->tunnel.sw_if_index = htonl (t->sw_if_index);
170  rmp->context = context;
171 
172  vl_api_send_msg (reg, (u8 *) rmp);
173 }
174 
177 {
182 
184  if (!reg)
185  return;
186 
187  sw_if_index = ntohl (mp->sw_if_index);
188 
189  if (~0 == sw_if_index)
190  {
191  /* *INDENT-OFF* */
192  pool_foreach (t, vxm->tunnels)
193  {
195  }
196  /* *INDENT-ON* */
197  }
198  else
199  {
200  if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
201  (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
202  {
203  return;
204  }
207  }
208 }
209 
210 /*
211  * vpe_api_hookup
212  * Add vpe's API message handlers to the table.
213  * vlib has already mapped shared memory and
214  * added the client registration handlers.
215  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
216  */
217 #define vl_msg_name_crc_list
218 #include <vnet/vnet_all_api_h.h>
219 #undef vl_msg_name_crc_list
220 
221 static void
223 {
224 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
225  foreach_vl_msg_name_crc_vxlan_gbp;
226 #undef _
227 }
228 
229 static clib_error_t *
231 {
232  api_main_t *am = vlibapi_get_main ();
233 
234 #define _(N,n) \
235  vl_msg_api_set_handlers(VL_API_##N, #n, \
236  vl_api_##n##_t_handler, \
237  vl_noop_handler, \
238  vl_api_##n##_t_endian, \
239  vl_api_##n##_t_print, \
240  sizeof(vl_api_##n##_t), 1);
242 #undef _
243 
244  /*
245  * Set up the (msg_name, crc, message-id) table
246  */
248 
249  return 0;
250 }
251 
253 
254 /*
255  * fd.io coding-style-patch-verification: ON
256  *
257  * Local Variables:
258  * eval: (c-set-style "gnu")
259  * End:
260  */
vl_api_vxlan_gbp_tunnel_t tunnel
Definition: vxlan_gbp.api:58
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
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip46_address.h:154
#define foreach_vpe_api_msg
Definition: vxlan_gbp_api.c:48
Create or delete a VXLAN-GBP tunnel.
Definition: vxlan_gbp.api:53
a
Definition: bitmap.h:544
#define ntohs(x)
Definition: af_xdp.bpf.c:29
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:527
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:35
int vnet_vxlan_gbp_tunnel_add_del(vnet_vxlan_gbp_tunnel_add_del_args_t *a, u32 *sw_if_indexp)
Definition: vxlan_gbp.c:384
static void setup_message_id_table(api_main_t *am)
enum vxlan_gbp_tunnel_mode_t_ vxlan_gbp_tunnel_mode_t
vl_api_address_t src
Definition: gre.api:54
vxlan_gbp_main_t vxlan_gbp_main
Definition: vxlan_gbp.c:34
vlib_main_t * vm
Definition: in2out_ed.c:1580
static u8 ip46_address_is_ip4(const ip46_address_t *ip46)
Definition: ip46_address.h:55
void * vl_msg_api_alloc(int nbytes)
unsigned char u8
Definition: types.h:56
vl_api_vxlan_gbp_tunnel_t tunnel
Definition: vxlan_gbp.api:81
static int ip46_address_cmp(const ip46_address_t *ip46_1, const ip46_address_t *ip46_2)
Definition: ip46_address.h:80
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:1106
ip46_type_t ip_address_decode(const vl_api_address_t *in, ip46_address_t *out)
Decode/Encode for struct/union types.
Definition: ip_types_api.c:186
fib_protocol_t fib_proto_from_ip46(ip46_type_t iproto)
Convert from ip46_type to fib_protocol.
Definition: fib_types.c:409
#define REPLY_MACRO(t)
vl_api_address_t dst
Definition: gre.api:55
vl_api_tunnel_mode_t mode
Definition: gre.api:48
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:227
An API client registration, only in vpp/vlib.
Definition: api_common.h:47
#define BAD_SW_IF_INDEX_LABEL
static uword vnet_sw_if_index_is_api_valid(u32 sw_if_index)
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:88
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:79
ip46_address_t dst
Definition: vxlan_gbp.h:87
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:1095
static int vxlan_gbp_tunnel_mode_decode(vl_api_vxlan_gbp_api_tunnel_mode_t in, vxlan_gbp_tunnel_mode_t *out)
Definition: vxlan_gbp_api.c:70
vl_api_interface_index_t sw_if_index
Definition: vxlan_gbp.api:66
vl_api_interface_index_t sw_if_index
Definition: vxlan_gbp.api:96
ip46_address_t src
Definition: vxlan_gbp.h:86
Interface set vxlan-bypass request.
Definition: vxlan_gbp.api:92
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u32 instance
Definition: gre.api:51
vxlan_gbp_tunnel_t * tunnels
Definition: vxlan_gbp.h:168
void ip_address_encode(const ip46_address_t *in, ip46_type_t type, vl_api_address_t *out)
Definition: ip_types_api.c:220
static api_main_t * vlibapi_get_main(void)
Definition: api_common.h:389
vl_api_interface_index_t sw_if_index[default=0xffffffff]
Definition: vxlan_gbp.api:74
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:970
u32 * tunnel_index_by_sw_if_index
Definition: vxlan_gbp.h:183
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:34
#define VALIDATE_SW_IF_INDEX(mp)
ip46_type_t
Definition: ip46_address.h:22