nat: use correct data types for memory sizes
[vpp.git] / src / plugins / nat / dslite / dslite_api.c
1 /*
2  *------------------------------------------------------------------
3  * dslite_api.c - DS-Lite API
4  *
5  * Copyright (c) 2019 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 #include <vnet/ip/ip_types_api.h>
20 #include <nat/dslite/dslite.h>
21 #include <nat/dslite/dslite.api_enum.h>
22 #include <nat/dslite/dslite.api_types.h>
23 #include <vnet/ip/ip.h>
24 #include <vnet/fib/fib_table.h>
25 #include <vlibmemory/api.h>
26
27 #define REPLY_MSG_ID_BASE dm->msg_id_base
28 #include <vlibapi/api_helper_macros.h>
29
30 static void
31 vl_api_dslite_set_aftr_addr_t_handler (vl_api_dslite_set_aftr_addr_t * mp)
32 {
33   vl_api_dslite_set_aftr_addr_reply_t *rmp;
34   dslite_main_t *dm = &dslite_main;
35   int rv = 0;
36   ip6_address_t ip6_addr;
37   ip4_address_t ip4_addr;
38
39   memcpy (&ip6_addr.as_u8, mp->ip6_addr, 16);
40   memcpy (&ip4_addr.as_u8, mp->ip4_addr, 4);
41
42   rv = dslite_set_aftr_ip6_addr (dm, &ip6_addr);
43   if (rv == 0)
44     rv = dslite_set_aftr_ip4_addr (dm, &ip4_addr);
45
46   REPLY_MACRO (VL_API_DSLITE_SET_AFTR_ADDR_REPLY);
47 }
48
49 static void
50 vl_api_dslite_get_aftr_addr_t_handler (vl_api_dslite_get_aftr_addr_t * mp)
51 {
52   vl_api_dslite_get_aftr_addr_reply_t *rmp;
53   dslite_main_t *dm = &dslite_main;
54   int rv = 0;
55
56   /* *INDENT-OFF* */
57   REPLY_MACRO2 (VL_API_DSLITE_GET_AFTR_ADDR_REPLY,
58   ({
59     memcpy (rmp->ip4_addr, &dm->aftr_ip4_addr.as_u8, 4);
60     memcpy (rmp->ip6_addr, &dm->aftr_ip6_addr.as_u8, 16);
61   }))
62   /* *INDENT-ON* */
63 }
64
65 static void
66 vl_api_dslite_set_b4_addr_t_handler (vl_api_dslite_set_b4_addr_t * mp)
67 {
68   vl_api_dslite_set_b4_addr_reply_t *rmp;
69   dslite_main_t *dm = &dslite_main;
70   int rv = 0;
71   ip6_address_t ip6_addr;
72   ip4_address_t ip4_addr;
73
74   memcpy (&ip6_addr.as_u8, mp->ip6_addr, 16);
75   memcpy (&ip4_addr.as_u8, mp->ip4_addr, 4);
76
77   rv = dslite_set_b4_ip6_addr (dm, &ip6_addr);
78   if (rv == 0)
79     rv = dslite_set_b4_ip4_addr (dm, &ip4_addr);
80
81   REPLY_MACRO (VL_API_DSLITE_SET_B4_ADDR_REPLY);
82 }
83
84 static void
85 vl_api_dslite_get_b4_addr_t_handler (vl_api_dslite_get_b4_addr_t * mp)
86 {
87   vl_api_dslite_get_b4_addr_reply_t *rmp;
88   dslite_main_t *dm = &dslite_main;
89   int rv = 0;
90
91   /* *INDENT-OFF* */
92   REPLY_MACRO2 (VL_API_DSLITE_GET_B4_ADDR_REPLY,
93   ({
94     memcpy (rmp->ip4_addr, &dm->b4_ip4_addr.as_u8, 4);
95     memcpy (rmp->ip6_addr, &dm->b4_ip6_addr.as_u8, 16);
96   }))
97   /* *INDENT-ON* */
98 }
99
100 static void
101   vl_api_dslite_add_del_pool_addr_range_t_handler
102   (vl_api_dslite_add_del_pool_addr_range_t * mp)
103 {
104   vl_api_dslite_add_del_pool_addr_range_reply_t *rmp;
105   dslite_main_t *dm = &dslite_main;
106   int rv = 0;
107   ip4_address_t this_addr;
108   u32 start_host_order, end_host_order;
109   int count;
110   u32 *tmp;
111
112   tmp = (u32 *) mp->start_addr;
113   start_host_order = clib_host_to_net_u32 (tmp[0]);
114   tmp = (u32 *) mp->end_addr;
115   end_host_order = clib_host_to_net_u32 (tmp[0]);
116
117   // TODO:
118   // end_host_order < start_host_order
119
120   count = (end_host_order - start_host_order) + 1;
121   memcpy (&this_addr.as_u8, mp->start_addr, 4);
122
123   rv = nat_add_del_ip4_pool_addrs (&dm->pool, this_addr, count, mp->is_add, 0);
124
125   REPLY_MACRO (VL_API_DSLITE_ADD_DEL_POOL_ADDR_RANGE_REPLY);
126 }
127
128 static void
129 send_dslite_address_details (nat_ip4_pool_addr_t * a,
130                              vl_api_registration_t * reg, u32 context)
131 {
132   dslite_main_t *dm = &dslite_main;
133   vl_api_dslite_address_details_t *rmp;
134
135   rmp = vl_msg_api_alloc (sizeof (*rmp));
136
137   clib_memset (rmp, 0, sizeof (*rmp));
138
139   rmp->_vl_msg_id = ntohs (VL_API_DSLITE_ADDRESS_DETAILS + dm->msg_id_base);
140   clib_memcpy (rmp->ip_address, &(a->addr), 4);
141   rmp->context = context;
142
143   vl_api_send_msg (reg, (u8 *) rmp);
144 }
145
146 static void
147 vl_api_dslite_address_dump_t_handler (vl_api_dslite_address_dump_t * mp)
148 {
149   vl_api_registration_t *reg;
150   dslite_main_t *dm = &dslite_main;
151   nat_ip4_pool_addr_t *a;
152
153   reg = vl_api_client_index_to_registration (mp->client_index);
154   if (!reg)
155     return;
156
157   /* *INDENT-OFF* */
158   vec_foreach (a, dm->pool.pool_addr)
159     {
160       send_dslite_address_details (a, reg, mp->context);
161     }
162   /* *INDENT-ON* */
163 }
164
165 /* API definitions */
166 #include <vnet/format_fns.h>
167 #include <nat/dslite/dslite.api.c>
168
169 /* Set up the API message handling tables */
170 clib_error_t *
171 dslite_api_hookup (vlib_main_t * vm)
172 {
173   dslite_main_t *dm = &dslite_main;
174
175   dm->msg_id_base = setup_message_id_table ();
176   return 0;
177 }