FD.io VPP  v20.09-64-g4f7b92f0a
Vector Packet Processing
geneve_api.c
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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/geneve/geneve.h>
24 #include <vnet/fib/fib_table.h>
25 #include <vnet/ip/ip_types_api.h>
26 
27 #include <vnet/vnet_msg_enum.h>
28 
29 #define vl_typedefs /* define message structures */
30 #include <vnet/vnet_all_api_h.h>
31 #undef vl_typedefs
32 
33 #define vl_endianfun /* define message structures */
34 #include <vnet/vnet_all_api_h.h>
35 #undef vl_endianfun
36 
37 /* instantiate all the print functions we know about */
38 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
39 #define vl_printfun
40 #include <vnet/vnet_all_api_h.h>
41 #undef vl_printfun
42 
44 
45 #define foreach_vpe_api_msg \
46 _(SW_INTERFACE_SET_GENEVE_BYPASS, sw_interface_set_geneve_bypass) \
47 _(GENEVE_ADD_DEL_TUNNEL, geneve_add_del_tunnel) \
48 _(GENEVE_ADD_DEL_TUNNEL2, geneve_add_del_tunnel2) \
49 _(GENEVE_TUNNEL_DUMP, geneve_tunnel_dump)
50 
51 static void
54 {
55  vl_api_sw_interface_set_geneve_bypass_reply_t *rmp;
56  int rv = 0;
57  u32 sw_if_index = ntohl (mp->sw_if_index);
58 
60 
61  vnet_int_geneve_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
63 
64  REPLY_MACRO (VL_API_SW_INTERFACE_SET_GENEVE_BYPASS_REPLY);
65 }
66 
69 {
71  int rv = 0;
72  ip4_main_t *im = &ip4_main;
73 
74  uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
75  if (!p)
76  {
77  rv = VNET_API_ERROR_NO_SUCH_FIB;
78  goto out;
79  }
80 
82  .is_add = mp->is_add,
83  .is_ip6 = mp->remote_address.af,
84  .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
85  .encap_fib_index = p[0],
86  .decap_next_index = ntohl (mp->decap_next_index),
87  .vni = ntohl (mp->vni),
88  };
89 
92 
93  /* Check src & dst are different */
94  if (ip46_address_cmp (&a.remote, &a.local) == 0)
95  {
96  rv = VNET_API_ERROR_SAME_SRC_DST;
97  goto out;
98  }
101  {
102  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
103  goto out;
104  }
105 
106  u32 sw_if_index = ~0;
107  rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
108 
109 out:
110  /* *INDENT-OFF* */
111  REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL_REPLY,
112  ({
113  rmp->sw_if_index = ntohl (sw_if_index);
114  }));
115  /* *INDENT-ON* */
116 }
117 
120 {
122  int rv = 0;
123  ip4_main_t *im = &ip4_main;
124 
125  uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
126  if (!p)
127  {
128  rv = VNET_API_ERROR_NO_SUCH_FIB;
129  goto out;
130  }
131 
133  .is_add = mp->is_add,
134  .is_ip6 = mp->remote_address.af,
135  .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
136  .encap_fib_index = p[0],
137  .decap_next_index = ntohl (mp->decap_next_index),
138  .vni = ntohl (mp->vni),
139  .l3_mode = mp->l3_mode,
140  };
141 
144 
145  /* Check src & dst are different */
146  if (ip46_address_cmp (&a.remote, &a.local) == 0)
147  {
148  rv = VNET_API_ERROR_SAME_SRC_DST;
149  goto out;
150  }
153  {
154  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
155  goto out;
156  }
157 
158  u32 sw_if_index = ~0;
159  rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
160 
161 out:
162  /* *INDENT-OFF* */
163  REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL2_REPLY,
164  ({
165  rmp->sw_if_index = ntohl (sw_if_index);
166  }));
167  /* *INDENT-ON* */
168 }
169 
170 static void send_geneve_tunnel_details
172 {
174  ip4_main_t *im4 = &ip4_main;
175  ip6_main_t *im6 = &ip6_main;
177 
178  rmp = vl_msg_api_alloc (sizeof (*rmp));
179  clib_memset (rmp, 0, sizeof (*rmp));
180  rmp->_vl_msg_id = ntohs (VL_API_GENEVE_TUNNEL_DETAILS);
182  &rmp->src_address);
183  ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
184  &rmp->dst_address);
185  rmp->encap_vrf_id =
186  htonl (is_ipv6 ? im6->fibs[t->encap_fib_index].
187  ft_table_id : im4->fibs[t->encap_fib_index].ft_table_id);
188 
189  rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
190  rmp->vni = htonl (t->vni);
191  rmp->decap_next_index = htonl (t->decap_next_index);
192  rmp->sw_if_index = htonl (t->sw_if_index);
193  rmp->context = context;
194 
195  vl_api_send_msg (reg, (u8 *) rmp);
196 }
197 
200 {
202  geneve_main_t *vxm = &geneve_main;
203  geneve_tunnel_t *t;
205 
207  if (!reg)
208  return;
209 
210  sw_if_index = ntohl (mp->sw_if_index);
211 
212  if (~0 == sw_if_index)
213  {
214  /* *INDENT-OFF* */
215  pool_foreach (t, vxm->tunnels,
216  ({
217  send_geneve_tunnel_details(t, reg, mp->context);
218  }));
219  /* *INDENT-ON* */
220  }
221  else
222  {
223  if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
224  (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
225  {
226  return;
227  }
229  send_geneve_tunnel_details (t, reg, mp->context);
230  }
231 }
232 
233 /*
234  * vpe_api_hookup
235  * Add vpe's API message handlers to the table.
236  * vlib has already mapped shared memory and
237  * added the client registration handlers.
238  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
239  */
240 #define vl_msg_name_crc_list
241 #include <vnet/vnet_all_api_h.h>
242 #undef vl_msg_name_crc_list
243 
244 static void
246 {
247 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
248  foreach_vl_msg_name_crc_geneve;
249 #undef _
250 }
251 
252 static clib_error_t *
254 {
255  api_main_t *am = vlibapi_get_main ();
256 
257 #define _(N,n) \
258  vl_msg_api_set_handlers(VL_API_##N, #n, \
259  vl_api_##n##_t_handler, \
260  vl_noop_handler, \
261  vl_api_##n##_t_endian, \
262  vl_api_##n##_t_print, \
263  sizeof(vl_api_##n##_t), 1);
265 #undef _
266 
267  am->api_trace_cfg[VL_API_GENEVE_ADD_DEL_TUNNEL].size += 16 * sizeof (u32);
268 
269  /*
270  * Set up the (msg_name, crc, message-id) table
271  */
273 
274  return 0;
275 }
276 
278 
279 /*
280  * fd.io coding-style-patch-verification: ON
281  *
282  * Local Variables:
283  * eval: (c-set-style "gnu")
284  * End:
285  */
vl_api_address_t local_address
Definition: geneve.api:48
vl_api_interface_index_t mcast_sw_if_index
Definition: geneve.api:50
vl_api_interface_index_t mcast_sw_if_index
Definition: geneve.api:30
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip46_address.h:154
a
Definition: bitmap.h:538
#define ntohs(x)
Definition: af_xdp.bpf.c:29
int size
for sanity checking
Definition: api_common.h:83
static void vl_api_geneve_add_del_tunnel2_t_handler(vl_api_geneve_add_del_tunnel2_t *mp)
Definition: geneve_api.c:119
#define REPLY_MACRO2(t, body)
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
u32 decap_next_index
Definition: geneve.h:110
static void vl_api_send_msg(vl_api_registration_t *rp, u8 *elem)
Definition: api.h:35
#define foreach_vpe_api_msg
Definition: geneve_api.c:45
vl_api_interface_index_t sw_if_index
Definition: geneve.api:61
u32 mcast_sw_if_index
Definition: geneve.h:107
vl_api_interface_index_t mcast_sw_if_index
Definition: geneve.api:77
vlib_main_t * vm
Definition: in2out_ed.c:1582
int vnet_geneve_add_del_tunnel(vnet_geneve_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
Definition: geneve.c:351
static u8 ip46_address_is_ip4(const ip46_address_t *ip46)
Definition: ip46_address.h:55
u32 * tunnel_index_by_sw_if_index
Definition: geneve.h:179
void * vl_msg_api_alloc(int nbytes)
vl_api_address_t remote_address
Definition: geneve.api:29
unsigned char u8
Definition: types.h:56
trace_cfg_t * api_trace_cfg
Current trace configuration.
Definition: api_common.h:277
geneve_tunnel_t * tunnels
Definition: geneve.h:165
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:513
Interface set geneve-bypass request.
Definition: geneve.api:90
static int ip46_address_cmp(const ip46_address_t *ip46_1, const ip46_address_t *ip46_2)
Definition: ip46_address.h:80
vl_api_interface_index_t sw_if_index
Definition: geneve.api:74
unsigned int u32
Definition: types.h:88
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:160
#define hash_get(h, key)
Definition: hash.h:249
uword * fib_index_by_table_id
Hash table mapping table id to fib index.
Definition: ip4.h:132
VLIB_API_INIT_FUNCTION(geneve_api_hookup)
u32 encap_fib_index
Definition: geneve.h:113
vl_api_address_t local_address
Definition: geneve.api:28
vl_api_interface_index_t sw_if_index
Definition: geneve.api:40
#define REPLY_MACRO(t)
ip6_main_t ip6_main
Definition: ip6_forward.c:2781
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 clib_error_t * geneve_api_hookup(vlib_main_t *vm)
Definition: geneve_api.c:253
vl_api_interface_index_t sw_if_index
Definition: geneve.api:94
u32 ft_table_id
Table ID (hash key) for this FIB.
Definition: fib_table.h:92
vl_api_address_t src_address
Definition: geneve.api:75
static void send_geneve_tunnel_details(geneve_tunnel_t *t, vl_api_registration_t *reg, u32 context)
Definition: geneve_api.c:171
ip46_address_t local
Definition: geneve.h:103
static void vl_api_geneve_add_del_tunnel_t_handler(vl_api_geneve_add_del_tunnel_t *mp)
Definition: geneve_api.c:68
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:79
u32 sw_if_index
Definition: geneve.h:116
IPv4 main type.
Definition: ip4.h:106
static void vl_api_sw_interface_set_geneve_bypass_t_handler(vl_api_sw_interface_set_geneve_bypass_t *mp)
Definition: geneve_api.c:53
ip46_address_t remote
Definition: geneve.h:104
static void setup_message_id_table(api_main_t *am)
Definition: geneve_api.c:245
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u64 uword
Definition: types.h:112
void ip_address_encode(const ip46_address_t *in, ip46_type_t type, vl_api_address_t *out)
Definition: ip_types_api.c:194
vl_api_interface_index_t sw_if_index
Definition: geneve.api:68
static api_main_t * vlibapi_get_main(void)
Definition: api_common.h:389
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:1144
geneve_main_t geneve_main
Definition: geneve.c:39
struct fib_table_t_ * fibs
Vector of FIBs.
Definition: ip4.h:111
bool is_ipv6
Definition: dhcp.api:202
struct fib_table_t_ * fibs
Definition: ip6.h:184
vl_api_address_t dst_address
Definition: geneve.api:76
static void vl_api_geneve_tunnel_dump_t_handler(vl_api_geneve_tunnel_dump_t *mp)
Definition: geneve_api.c:199
vl_api_interface_index_t sw_if_index
Definition: wireguard.api:33
vl_api_address_t remote_address
Definition: geneve.api:49
#define VALIDATE_SW_IF_INDEX(mp)
void vnet_int_geneve_bypass_mode(u32 sw_if_index, u8 is_ip6, u8 is_enable)
Definition: geneve.c:923