FD.io VPP  v21.01.1
Vector Packet Processing
stn_api.c
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1 /*
2  * Copyright (c) 2017 Cisco and/or its affiliates.
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 #include <vlibapi/api.h>
17 #include <vlibmemory/api.h>
18 
19 #include <plugins/stn/stn.h>
20 #include <vnet/ip/format.h>
21 #include <vnet/format_fns.h>
22 #include <vnet/ip/ip_types_api.h>
23 #include <vppinfra/byte_order.h>
24 
25 /* define message IDs */
26 #include <stn/stn.api_enum.h>
27 #include <stn/stn.api_types.h>
28 
29 #define REPLY_MSG_ID_BASE stn_main.msg_id_base
31 
32 #define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
33 /* Macro to finish up custom dump fns */
34 #define FINISH \
35  vec_add1 (s, 0); \
36  vl_print (handle, (char *)s); \
37  vec_free (s); \
38  return handle;
39 
40 static void
42 {
44  vl_api_stn_add_del_rule_reply_t *rmp;
45  int rv = 0;
46 
47  ip_address_decode (&mp->ip_address, &args.address);
48  args.sw_if_index = clib_net_to_host_u32 (mp->sw_if_index);
49  args.del = !mp->is_add;
50 
51  rv = stn_rule_add_del (&args);
52 
53  REPLY_MACRO (VL_API_STN_ADD_DEL_RULE_REPLY);
54 }
55 
56 static void
58  u32 context)
59 {
61 
62  rmp = vl_msg_api_alloc (sizeof (*rmp));
63  clib_memset (rmp, 0, sizeof (*rmp));
64  rmp->_vl_msg_id =
65  clib_host_to_net_u16 (VL_API_STN_RULES_DETAILS + stn_main.msg_id_base);
66 
69  IP46_TYPE_IP6, &rmp->ip_address);
70  rmp->context = context;
71  rmp->sw_if_index = clib_host_to_net_u32 (r->sw_if_index);
72 
73  vl_api_send_msg (reg, (u8 *) rmp);
74 }
75 
76 static void
78 {
80  stn_main_t *stn = &stn_main;
81  stn_rule_t *r;
82 
84  if (reg == 0)
85  return;
86 
87  /* *INDENT-OFF* */
88  pool_foreach (r, stn->rules) {
89  send_stn_rules_details (r, reg, mp->context);
90  }
91  /* *INDENT-ON* */
92 }
93 
94 #include <stn/stn.api.c>
97 {
98  /* Ask for a correctly-sized block of API message decode slots */
100 
101  return 0;
102 }
103 
104 /*
105  * fd.io coding-style-patch-verification: ON
106  *
107  * Local Variables:
108  * eval: (c-set-style "gnu")
109  * End:
110  */
#define pool_foreach(VAR, POOL)
Iterate through pool.
Definition: pool.h:527
Definition: stn.h:24
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
Definition: stn.h:30
u32 sw_if_index
TX interface to send packets to.
Definition: stn.h:50
int stn_rule_add_del(stn_rule_add_del_args_t *args)
Add or delete an stn rule.
Definition: stn.c:285
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
stn_main_t stn_main
Definition: stn.c:24
void * vl_msg_api_alloc(int nbytes)
Dump STN rules.
Definition: stn.api:45
unsigned char u8
Definition: types.h:56
ip46_address_t address
Destination address of intercepted packets.
Definition: stn.h:48
Add/del STN rules.
Definition: stn.api:33
stn_rule_t * rules
Definition: stn.h:32
u8 del
Whether to delete the rule.
Definition: stn.h: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:186
vl_api_interface_index_t sw_if_index
Definition: stn.api:59
vl_api_interface_index_t sw_if_index
Definition: stn.api:37
static void vl_api_stn_add_del_rule_t_handler(vl_api_stn_add_del_rule_t *mp)
Definition: stn_api.c:41
STN response to rules request.
Definition: stn.api:56
static void vl_api_stn_rules_dump_t_handler(vl_api_stn_rules_dump_t *mp)
Definition: stn_api.c:77
#define REPLY_MACRO(t)
vl_api_address_t ip_address
Definition: stn.api:36
An API client registration, only in vpp/vlib.
Definition: api_common.h:47
static void setup_message_id_table(api_main_t *am)
Definition: bfd_api.c:409
vl_api_address_t ip_address
Definition: stn.api:58
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:79
u16 msg_id_base
Definition: stn.h:43
u32 sw_if_index
Definition: stn.h:27
void ip_address_encode(const ip46_address_t *in, ip46_type_t type, vl_api_address_t *out)
Definition: ip_types_api.c:220
clib_error_t * stn_api_init(vlib_main_t *vm, stn_main_t *sm)
Definition: stn_api.c:96
ip46_address_t address
Definition: stn.h:25
static void send_stn_rules_details(stn_rule_t *r, vl_api_registration_t *reg, u32 context)
Definition: stn_api.c:57