FD.io VPP  v20.05-21-gb1500e9ff
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_TUNNEL_DUMP, geneve_tunnel_dump)
49 
50 static void
53 {
54  vl_api_sw_interface_set_geneve_bypass_reply_t *rmp;
55  int rv = 0;
56  u32 sw_if_index = ntohl (mp->sw_if_index);
57 
59 
60  vnet_int_geneve_bypass_mode (sw_if_index, mp->is_ipv6, mp->enable);
62 
63  REPLY_MACRO (VL_API_SW_INTERFACE_SET_GENEVE_BYPASS_REPLY);
64 }
65 
68 {
70  int rv = 0;
71  ip4_main_t *im = &ip4_main;
72 
73  uword *p = hash_get (im->fib_index_by_table_id, ntohl (mp->encap_vrf_id));
74  if (!p)
75  {
76  rv = VNET_API_ERROR_NO_SUCH_FIB;
77  goto out;
78  }
79 
81  .is_add = mp->is_add,
82  .is_ip6 = mp->remote_address.af,
83  .mcast_sw_if_index = ntohl (mp->mcast_sw_if_index),
84  .encap_fib_index = p[0],
85  .decap_next_index = ntohl (mp->decap_next_index),
86  .vni = ntohl (mp->vni),
87  };
88 
91 
92  /* Check src & dst are different */
93  if (ip46_address_cmp (&a.remote, &a.local) == 0)
94  {
95  rv = VNET_API_ERROR_SAME_SRC_DST;
96  goto out;
97  }
100  {
101  rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
102  goto out;
103  }
104 
105  u32 sw_if_index = ~0;
106  rv = vnet_geneve_add_del_tunnel (&a, &sw_if_index);
107 
108 out:
109  /* *INDENT-OFF* */
110  REPLY_MACRO2(VL_API_GENEVE_ADD_DEL_TUNNEL_REPLY,
111  ({
112  rmp->sw_if_index = ntohl (sw_if_index);
113  }));
114  /* *INDENT-ON* */
115 }
116 
117 static void send_geneve_tunnel_details
119 {
121  ip4_main_t *im4 = &ip4_main;
122  ip6_main_t *im6 = &ip6_main;
124 
125  rmp = vl_msg_api_alloc (sizeof (*rmp));
126  clib_memset (rmp, 0, sizeof (*rmp));
127  rmp->_vl_msg_id = ntohs (VL_API_GENEVE_TUNNEL_DETAILS);
129  &rmp->src_address);
130  ip_address_encode (&t->remote, is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
131  &rmp->dst_address);
132  rmp->encap_vrf_id =
133  htonl (is_ipv6 ? im6->fibs[t->encap_fib_index].
134  ft_table_id : im4->fibs[t->encap_fib_index].ft_table_id);
135 
136  rmp->mcast_sw_if_index = htonl (t->mcast_sw_if_index);
137  rmp->vni = htonl (t->vni);
138  rmp->decap_next_index = htonl (t->decap_next_index);
139  rmp->sw_if_index = htonl (t->sw_if_index);
140  rmp->context = context;
141 
142  vl_api_send_msg (reg, (u8 *) rmp);
143 }
144 
147 {
149  geneve_main_t *vxm = &geneve_main;
150  geneve_tunnel_t *t;
152 
154  if (!reg)
155  return;
156 
157  sw_if_index = ntohl (mp->sw_if_index);
158 
159  if (~0 == sw_if_index)
160  {
161  /* *INDENT-OFF* */
162  pool_foreach (t, vxm->tunnels,
163  ({
164  send_geneve_tunnel_details(t, reg, mp->context);
165  }));
166  /* *INDENT-ON* */
167  }
168  else
169  {
170  if ((sw_if_index >= vec_len (vxm->tunnel_index_by_sw_if_index)) ||
171  (~0 == vxm->tunnel_index_by_sw_if_index[sw_if_index]))
172  {
173  return;
174  }
176  send_geneve_tunnel_details (t, reg, mp->context);
177  }
178 }
179 
180 /*
181  * vpe_api_hookup
182  * Add vpe's API message handlers to the table.
183  * vlib has already mapped shared memory and
184  * added the client registration handlers.
185  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
186  */
187 #define vl_msg_name_crc_list
188 #include <vnet/vnet_all_api_h.h>
189 #undef vl_msg_name_crc_list
190 
191 static void
193 {
194 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
195  foreach_vl_msg_name_crc_geneve;
196 #undef _
197 }
198 
199 static clib_error_t *
201 {
202  api_main_t *am = vlibapi_get_main ();
203 
204 #define _(N,n) \
205  vl_msg_api_set_handlers(VL_API_##N, #n, \
206  vl_api_##n##_t_handler, \
207  vl_noop_handler, \
208  vl_api_##n##_t_endian, \
209  vl_api_##n##_t_print, \
210  sizeof(vl_api_##n##_t), 1);
212 #undef _
213 
214  am->api_trace_cfg[VL_API_GENEVE_ADD_DEL_TUNNEL].size += 16 * sizeof (u32);
215 
216  /*
217  * Set up the (msg_name, crc, message-id) table
218  */
220 
221  return 0;
222 }
223 
225 
226 /*
227  * fd.io coding-style-patch-verification: ON
228  *
229  * Local Variables:
230  * eval: (c-set-style "gnu")
231  * End:
232  */
vl_api_interface_index_t mcast_sw_if_index
Definition: geneve.api:29
static uword ip46_address_is_multicast(const ip46_address_t *a)
Definition: ip46_address.h:154
a
Definition: bitmap.h:538
int size
for sanity checking
Definition: api_common.h:83
#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
u32 mcast_sw_if_index
Definition: geneve.h:107
vl_api_interface_index_t mcast_sw_if_index
Definition: geneve.api:55
int vnet_geneve_add_del_tunnel(vnet_geneve_add_del_tunnel_args_t *a, u32 *sw_if_indexp)
Definition: geneve.c:340
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:180
void * vl_msg_api_alloc(int nbytes)
vl_api_address_t remote_address
Definition: geneve.api:28
unsigned char u8
Definition: types.h:56
trace_cfg_t * api_trace_cfg
Current trace configuration.
Definition: api_common.h:273
geneve_tunnel_t * tunnels
Definition: geneve.h:163
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:513
Interface set geneve-bypass request.
Definition: geneve.api:68
vl_api_interface_index_t sw_if_index
Definition: gre.api:53
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:52
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:27
vl_api_interface_index_t sw_if_index
Definition: geneve.api:39
#define REPLY_MACRO(t)
ip6_main_t ip6_main
Definition: ip6_forward.c:2784
vlib_main_t * vm
Definition: in2out_ed.c:1599
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:226
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:200
vl_api_interface_index_t sw_if_index
Definition: geneve.api:72
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:53
static void send_geneve_tunnel_details(geneve_tunnel_t *t, vl_api_registration_t *reg, u32 context)
Definition: geneve_api.c:118
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:67
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:57
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:52
ip46_address_t remote
Definition: geneve.h:104
static void setup_message_id_table(api_main_t *am)
Definition: geneve_api.c:192
#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:46
static api_main_t * vlibapi_get_main(void)
Definition: api_common.h:379
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:54
static void vl_api_geneve_tunnel_dump_t_handler(vl_api_geneve_tunnel_dump_t *mp)
Definition: geneve_api.c:146
#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:912