1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/*
* Copyright (c) 2018 PANTHEON.tech.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <string.h>
#include <vom/interface.hpp>
#include <vom/om.hpp>
#include <vpp-oper/interface.hpp>
#include <sc_plugins.h>
using VOM::interface;
using VOM::OM;
using VOM::HW;
using VOM::rc_t;
using type_t = VOM::interface::type_t;
using admin_state_t = VOM::interface::admin_state_t;
class interface_builder {
public:
interface_builder() {}
shared_ptr<VOM::interface> build() {
if (m_name.empty() || m_type.empty())
return nullptr;
return make_shared<interface>(m_name, type_t::from_string(m_type),
admin_state_t::from_int(m_state));
}
/* Getters */
string name() {
return m_name;
}
/* Setters */
interface_builder& set_name(string n) {
m_name = n;
return *this;
}
interface_builder& set_type(string t) {
if (t == "iana-if-type:ethernetCsmacd")
m_type = "ETHERNET";
return *this;
}
interface_builder& set_state(bool enable) {
m_state = enable;
return *this;
}
std::string to_string() {
std::ostringstream os;
os << m_name << "," << m_type << "," << m_state;
return os.str();
}
private:
string m_name;
string m_type;
bool m_state;
};
// XPATH: /openconfig-interfaces:interfaces/interface[name='%s']/config/
static int
oc_interfaces_config_cb(sr_session_ctx_t *ds, const char *xpath,
sr_notif_event_t event, void *private_ctx)
{
UNUSED(private_ctx);
interface_builder builder;
shared_ptr<VOM::interface> intf;
string intf_name;
sr_change_iter_t *it = nullptr;
sr_xpath_ctx_t state;
sr_val_t *ol = nullptr;
sr_val_t *ne = nullptr;
sr_change_oper_t oper;
bool create, remove, modify;
int rc;
SRP_LOG_INF("In %s", __FUNCTION__);
ARG_CHECK2(SR_ERR_INVAL_ARG, ds, xpath);
if (event != SR_EV_VERIFY)
return SR_ERR_OK;
if (sr_get_changes_iter(ds, (char *)xpath, &it) != SR_ERR_OK) {
sr_free_change_iter(it);
return SR_ERR_OK;
}
foreach_change (ds, it, oper, ol, ne) {
intf_name = sr_xpath_key_value(ne->xpath, "interface", "name", &state);
if (intf_name.empty()) {
sr_set_error(ds, "XPATH interface name NOT found", ne->xpath);
return SR_ERR_INVAL_ARG;
}
sr_xpath_recover(&state);
switch (oper) {
case SR_OP_CREATED:
if (sr_xpath_node_name_eq(ne->xpath, "name")) {
builder.set_name(ne->data.string_val);
create = true;
} else if(sr_xpath_node_name_eq(ne->xpath, "type")) {
builder.set_type(ne->data.string_val);
} else if(sr_xpath_node_name_eq(ne->xpath, "enabled")) {
builder.set_state(ne->data.bool_val);
}
break;
case SR_OP_MODIFIED:
if (sr_xpath_node_name_eq(ne->xpath, "enabled")) {
string n = sr_xpath_key_value(ne->xpath, "interface",
"name", &state);
intf = interface::find(n);
if (!intf) {
rc = SR_ERR_OPERATION_FAILED;
goto nothing_todo;
}
intf->set(admin_state_t::from_int(ne->data.bool_val));
modify = true;
}
break;
case SR_OP_DELETED:
if (sr_xpath_node_name_eq(ol->xpath, "name")) {
builder.set_name(ol->data.string_val);
remove = true;
}
break;
default:
rc = SR_ERR_UNSUPPORTED;
goto nothing_todo;
}
sr_xpath_recover(&state);
sr_free_val(ol);
sr_free_val(ne);
}
if (create) {
SRP_LOG_INF("creating interface '%s'", builder.name().c_str());
intf = builder.build();
if (nullptr == intf) {
SRP_LOG_ERR_MSG("Interface does not exist");
rc = SR_ERR_INVAL_ARG;
goto nothing_todo;
}
}
if (create || modify) {
if ( OM::write(intf->key(), *intf) != rc_t::OK ) {
SRP_LOG_ERR("Fail writing changes to VPP for: %s",
builder.to_string().c_str());
rc = SR_ERR_OPERATION_FAILED;
goto nothing_todo;
}
} else if (remove) {
SRP_LOG_INF("deleting interface '%s'", builder.name().c_str());
OM::remove(builder.name());
}
sr_free_change_iter(it);
return SR_ERR_OK;
nothing_todo:
sr_free_val(ol);
sr_free_val(ne);
sr_free_change_iter(it);
return rc;
}
//XPATH : /openconfig-interfaces:interfaces/interface/state
static int
oc_interfaces_state_cb(const char *xpath, sr_val_t **values, size_t *values_cnt,
uint64_t request_id, const char *original_xpath,
void *private_ctx)
{
UNUSED(request_id); UNUSED(original_xpath); UNUSED(private_ctx);
vapi_payload_sw_interface_details reply;
shared_ptr<interface_dump> dump;
string intf_name;
sr_val_t *vals = nullptr;
sr_xpath_ctx_t state;
char xpath_root[XPATH_SIZE];
int vc = 7;
int cnt = 0;
int rc;
SRP_LOG_INF("In %s", __FUNCTION__);
ARG_CHECK3(SR_ERR_INVAL_ARG, xpath, values, values_cnt);
intf_name = sr_xpath_key_value((char*) xpath, "interface", "name", &state);
if (intf_name.empty()) {
SRP_LOG_ERR_MSG("XPATH interface name not found");
return SR_ERR_INVAL_ARG;
}
sr_xpath_recover(&state);
snprintf(xpath_root, XPATH_SIZE,
"/openconfig-interfaces:interfaces/interface[name='%s']/state",
intf_name.c_str());
rc = sr_new_values(vc, &vals);
if (SR_ERR_OK != rc)
return rc;
dump = make_shared<interface_dump>(intf_name); //dump only specific intf
HW::enqueue(dump);
HW::write();
reply = dump->begin()->get_payload();
sr_val_build_xpath(&vals[cnt], "%s/name", xpath_root);
sr_val_set_str_data(&vals[cnt], SR_STRING_T, (char *)reply.interface_name);
cnt++;
//TODO revisit types after V3PO has been implemented
sr_val_build_xpath(&vals[cnt], "%s/type", xpath_root);
sr_val_set_str_data(&vals[cnt], SR_IDENTITYREF_T, "ianaift:ethernetCsmacd");
cnt++;
sr_val_build_xpath(&vals[cnt], "%s/mtu", xpath_root);
vals[cnt].type = SR_UINT16_T;
vals[cnt].data.uint16_val = reply.link_mtu;
cnt++;
sr_val_build_xpath(&vals[cnt], "%s/enabled", xpath_root);
vals[cnt].type = SR_BOOL_T;
vals[cnt].data.bool_val = reply.admin_up_down;
cnt++;
sr_val_build_xpath(&vals[cnt], "%s/ifindex", xpath_root);
vals[cnt].type = SR_UINT32_T;
vals[cnt].data.uint32_val = reply.sw_if_index;
cnt++;
sr_val_build_xpath(&vals[cnt], "%s/admin-status", xpath_root);
sr_val_set_str_data(&vals[cnt], SR_ENUM_T,
reply.admin_up_down ? "UP" : "DOWN");
cnt++;
sr_val_build_xpath(&vals[cnt], "%s/oper-status", xpath_root);
sr_val_set_str_data(&vals[cnt], SR_ENUM_T,
reply.link_up_down ? "UP" : "DOWN");
cnt++;
*values = vals;
*values_cnt = cnt;
return SR_ERR_OK;
}
int
openconfig_interface_init(sc_plugin_main_t *pm)
{
int rc = SR_ERR_OK;
SRP_LOG_DBG_MSG("Initializing openconfig-interfaces plugin.");
rc = sr_subtree_change_subscribe(pm->session, "/openconfig-interfaces:interfaces/interface/config",
oc_interfaces_config_cb, nullptr, 98, SR_SUBSCR_CTX_REUSE, &pm->subscription);
if (SR_ERR_OK != rc) {
goto error;
}
rc = sr_dp_get_items_subscribe(pm->session, "/openconfig-interfaces:interfaces/interface/state",
oc_interfaces_state_cb, nullptr, SR_SUBSCR_CTX_REUSE, &pm->subscription);
if (SR_ERR_OK != rc) {
goto error;
}
SRP_LOG_DBG_MSG("openconfig-interfaces plugin initialized successfully.");
return SR_ERR_OK;
error:
SRP_LOG_ERR("Error by initialization of openconfig-interfaces plugin. Error : %d", rc);
return rc;
}
void
openconfig_interface_exit(__attribute__((unused)) sc_plugin_main_t *pm)
{
}
SC_INIT_FUNCTION(openconfig_interface_init);
SC_EXIT_FUNCTION(openconfig_interface_exit);
|