FD.io VPP  v18.07-34-g55fbdb9
Vector Packet Processing
policer_api.c
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1 /*
2  *------------------------------------------------------------------
3  * policer_api.c - policer api
4  *
5  * Copyright (c) 2016 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/policer/policer.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 _(POLICER_ADD_DEL, policer_add_del) \
47 _(POLICER_DUMP, policer_dump)
48 
49 static void
51 {
54  int rv = 0;
55  u8 *name = NULL;
57  clib_error_t *error;
58  u32 policer_index;
59 
60  name = format (0, "%s", mp->name);
62 
63  memset (&cfg, 0, sizeof (cfg));
64  cfg.rfc = mp->type;
65  cfg.rnd_type = mp->round_type;
66  cfg.rate_type = mp->rate_type;
67  cfg.rb.kbps.cir_kbps = ntohl (mp->cir);
68  cfg.rb.kbps.eir_kbps = ntohl (mp->eir);
69  cfg.rb.kbps.cb_bytes = clib_net_to_host_u64 (mp->cb);
70  cfg.rb.kbps.eb_bytes = clib_net_to_host_u64 (mp->eb);
74  cfg.exceed_action.dscp = mp->exceed_dscp;
77  cfg.color_aware = mp->color_aware;
78 
79  error = policer_add_del (vm, name, &cfg, &policer_index, mp->is_add);
80 
81  if (error)
82  rv = VNET_API_ERROR_UNSPECIFIED;
83 
84  /* *INDENT-OFF* */
85  REPLY_MACRO2(VL_API_POLICER_ADD_DEL_REPLY,
86  ({
87  if (rv == 0 && mp->is_add)
88  rmp->policer_index = ntohl(policer_index);
89  else
90  rmp->policer_index = ~0;
91  }));
92  /* *INDENT-ON* */
93 }
94 
95 static void
99  vl_api_registration_t * reg, u32 context)
100 {
102 
103  mp = vl_msg_api_alloc (sizeof (*mp));
104  memset (mp, 0, sizeof (*mp));
105  mp->_vl_msg_id = ntohs (VL_API_POLICER_DETAILS);
106  mp->context = context;
107  mp->cir = htonl (config->rb.kbps.cir_kbps);
108  mp->eir = htonl (config->rb.kbps.eir_kbps);
109  mp->cb = clib_host_to_net_u64 (config->rb.kbps.cb_bytes);
110  mp->eb = clib_host_to_net_u64 (config->rb.kbps.eb_bytes);
111  mp->rate_type = config->rate_type;
112  mp->round_type = config->rnd_type;
113  mp->type = config->rfc;
115  mp->conform_dscp = config->conform_action.dscp;
117  mp->exceed_dscp = config->exceed_action.dscp;
119  mp->violate_dscp = config->violate_action.dscp;
120  mp->single_rate = templ->single_rate ? 1 : 0;
121  mp->color_aware = templ->color_aware ? 1 : 0;
122  mp->scale = htonl (templ->scale);
123  mp->cir_tokens_per_period = htonl (templ->cir_tokens_per_period);
124  mp->pir_tokens_per_period = htonl (templ->pir_tokens_per_period);
125  mp->current_limit = htonl (templ->current_limit);
126  mp->current_bucket = htonl (templ->current_bucket);
127  mp->extended_limit = htonl (templ->extended_limit);
128  mp->extended_bucket = htonl (templ->extended_bucket);
129  mp->last_update_time = clib_host_to_net_u64 (templ->last_update_time);
130 
131  strncpy ((char *) mp->name, (char *) name, ARRAY_LEN (mp->name) - 1);
132 
133  vl_api_send_msg (reg, (u8 *) mp);
134 }
135 
136 static void
138 {
141  hash_pair_t *hp;
142  uword *p;
143  u32 pool_index;
144  u8 *match_name = 0;
145  u8 *name;
148 
150  if (!reg)
151  return;
152 
153  if (mp->match_name_valid)
154  {
155  match_name = format (0, "%s%c", mp->match_name, 0);
156  vec_terminate_c_string (match_name);
157  }
158 
159  if (mp->match_name_valid)
160  {
161  p = hash_get_mem (pm->policer_config_by_name, match_name);
162  if (p)
163  {
164  pool_index = p[0];
165  config = pool_elt_at_index (pm->configs, pool_index);
166  templ = pool_elt_at_index (pm->policer_templates, pool_index);
167  send_policer_details (match_name, config, templ, reg, mp->context);
168  }
169  }
170  else
171  {
172  /* *INDENT-OFF* */
174  ({
175  name = (u8 *) hp->key;
176  pool_index = hp->value[0];
177  config = pool_elt_at_index (pm->configs, pool_index);
178  templ = pool_elt_at_index (pm->policer_templates, pool_index);
179  send_policer_details(name, config, templ, reg, mp->context);
180  }));
181  /* *INDENT-ON* */
182  }
183 }
184 
185 /*
186  * policer_api_hookup
187  * Add vpe's API message handlers to the table.
188  * vlib has alread mapped shared memory and
189  * added the client registration handlers.
190  * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
191  */
192 #define vl_msg_name_crc_list
193 #include <vnet/vnet_all_api_h.h>
194 #undef vl_msg_name_crc_list
195 
196 static void
198 {
199 #define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
200  foreach_vl_msg_name_crc_policer;
201 #undef _
202 }
203 
204 static clib_error_t *
206 {
207  api_main_t *am = &api_main;
208 
209 #define _(N,n) \
210  vl_msg_api_set_handlers(VL_API_##N, #n, \
211  vl_api_##n##_t_handler, \
212  vl_noop_handler, \
213  vl_api_##n##_t_endian, \
214  vl_api_##n##_t_print, \
215  sizeof(vl_api_##n##_t), 1);
217 #undef _
218  /*
219  * Set up the (msg_name, crc, message-id) table
220  */
222 
223  return 0;
224 }
225 
227 
228 /*
229  * fd.io coding-style-patch-verification: ON
230  *
231  * Local Variables:
232  * eval: (c-set-style "gnu")
233  * End:
234  */
Policer operational state response.
Definition: policer.api:115
Get list of policers.
Definition: policer.api:79
sse2_qos_pol_cfg_params_st * configs
Definition: policer.h:30
static void vl_api_policer_add_del_t_handler(vl_api_policer_add_del_t *mp)
Definition: policer_api.c:50
sse2_qos_pol_action_params_st conform_action
Definition: xlate.h:151
uword * policer_config_by_name
Definition: policer.h:34
#define REPLY_MACRO2(t, body)
#define NULL
Definition: clib.h:55
static void vl_api_send_msg(vl_api_registration_t *rp, u8 *elem)
Definition: api.h:34
#define vec_terminate_c_string(V)
(If necessary) NULL terminate a vector containing a c-string.
Definition: vec.h:1016
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:419
#define foreach_vpe_api_msg
Definition: policer_api.c:45
void * vl_msg_api_alloc(int nbytes)
Add/del policer response.
Definition: policer.api:66
unsigned char u8
Definition: types.h:56
vnet_policer_main_t vnet_policer_main
Definition: policer.c:19
static void setup_message_id_table(api_main_t *am)
Definition: policer_api.c:197
unsigned int u32
Definition: types.h:88
struct sse2_qos_pol_cfg_params_st_::@293::@294 kbps
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:464
sse2_qos_pol_action_params_st violate_action
Definition: xlate.h:153
static clib_error_t * policer_api_hookup(vlib_main_t *vm)
Definition: policer_api.c:205
API main structure, used by both vpp and binary API clients.
Definition: api_common.h:201
sse2_qos_pol_action_params_st exceed_action
Definition: xlate.h:152
union sse2_qos_pol_cfg_params_st_::@293 rb
An API client registration, only in vpp/vlib.
Definition: api_common.h:44
vlib_main_t * vm
Definition: buffer.c:294
#define ARRAY_LEN(x)
Definition: clib.h:59
static vl_api_registration_t * vl_api_client_index_to_registration(u32 index)
Definition: api.h:56
static void vl_api_policer_dump_t_handler(vl_api_policer_dump_t *mp)
Definition: policer_api.c:137
clib_error_t * policer_add_del(vlib_main_t *vm, u8 *name, sse2_qos_pol_cfg_params_st *cfg, u32 *policer_index, u8 is_add)
Definition: policer.c:22
static void send_policer_details(u8 *name, sse2_qos_pol_cfg_params_st *config, policer_read_response_type_st *templ, vl_api_registration_t *reg, u32 context)
Definition: policer_api.c:96
VLIB_API_INIT_FUNCTION(policer_api_hookup)
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
#define hash_foreach_pair(p, v, body)
Iterate over hash pairs.
Definition: hash.h:373
u64 uword
Definition: types.h:112
#define hash_get_mem(h, key)
Definition: hash.h:269
policer_read_response_type_st * policer_templates
Definition: policer.h:31
Add/del policer.
Definition: policer.api:38
api_main_t api_main
Definition: api_shared.c:35