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8073dd31 | 1 | /* |
2dd88e5d | 2 | * Copyright (c) 2011, 2012, 2013, 2014, 2015 Nicira, Inc. |
8073dd31 NM |
3 | * Copyright (c) 2013 InMon Corp. |
4 | * | |
5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
6 | * you may not use this file except in compliance with the License. | |
7 | * You may obtain a copy of the License at: | |
8 | * | |
9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
10 | * | |
11 | * Unless required by applicable law or agreed to in writing, software | |
12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
14 | * See the License for the specific language governing permissions and | |
15 | * limitations under the License. | |
16 | */ | |
17 | ||
18 | #include <config.h> | |
3f636c7e JR |
19 | #undef NDEBUG |
20 | #include "netflow.h" | |
b7807e4f | 21 | #include <arpa/inet.h> |
8073dd31 NM |
22 | #include <errno.h> |
23 | #include <getopt.h> | |
24 | #include <signal.h> | |
25 | #include <stdlib.h> | |
26 | #include <unistd.h> | |
27 | #include <setjmp.h> | |
8073dd31 NM |
28 | #include "command-line.h" |
29 | #include "daemon.h" | |
30 | #include "dynamic-string.h" | |
8073dd31 | 31 | #include "ofpbuf.h" |
3f636c7e | 32 | #include "ovstest.h" |
8073dd31 NM |
33 | #include "packets.h" |
34 | #include "poll-loop.h" | |
35 | #include "socket-util.h" | |
36 | #include "unixctl.h" | |
37 | #include "util.h" | |
e6211adc | 38 | #include "openvswitch/vlog.h" |
8073dd31 | 39 | |
cab50449 | 40 | OVS_NO_RETURN static void usage(void); |
8073dd31 NM |
41 | static void parse_options(int argc, char *argv[]); |
42 | ||
43 | static unixctl_cb_func test_sflow_exit; | |
44 | ||
45 | /* Datagram. */ | |
46 | #define SFLOW_VERSION_5 5 | |
47 | #define SFLOW_MIN_LEN 36 | |
8073dd31 NM |
48 | |
49 | /* Sample tag numbers. */ | |
50 | #define SFLOW_FLOW_SAMPLE 1 | |
51 | #define SFLOW_COUNTERS_SAMPLE 2 | |
52 | #define SFLOW_FLOW_SAMPLE_EXPANDED 3 | |
53 | #define SFLOW_COUNTERS_SAMPLE_EXPANDED 4 | |
54 | ||
55 | /* Structure element tag numbers. */ | |
56 | #define SFLOW_TAG_CTR_IFCOUNTERS 1 | |
50b9699f NM |
57 | #define SFLOW_TAG_CTR_LACPCOUNTERS 7 |
58 | #define SFLOW_TAG_CTR_OPENFLOWPORT 1004 | |
59 | #define SFLOW_TAG_CTR_PORTNAME 1005 | |
8073dd31 NM |
60 | #define SFLOW_TAG_PKT_HEADER 1 |
61 | #define SFLOW_TAG_PKT_SWITCH 1001 | |
50b9699f NM |
62 | #define SFLOW_TAG_PKT_TUNNEL4_OUT 1023 |
63 | #define SFLOW_TAG_PKT_TUNNEL4_IN 1024 | |
64 | #define SFLOW_TAG_PKT_TUNNEL_VNI_OUT 1029 | |
65 | #define SFLOW_TAG_PKT_TUNNEL_VNI_IN 1030 | |
66 | ||
67 | /* string sizes */ | |
68 | #define SFL_MAX_PORTNAME_LEN 255 | |
8073dd31 NM |
69 | |
70 | struct sflow_addr { | |
71 | enum { | |
72 | SFLOW_ADDRTYPE_undefined = 0, | |
73 | SFLOW_ADDRTYPE_IP4, | |
74 | SFLOW_ADDRTYPE_IP6 | |
75 | } type; | |
76 | ||
77 | union { | |
78 | ovs_be32 ip4; | |
79 | ovs_be32 ip6[4]; | |
80 | } a; | |
81 | }; | |
82 | ||
83 | struct sflow_xdr { | |
84 | /* Exceptions. */ | |
85 | jmp_buf env; | |
86 | int errline; | |
87 | ||
88 | /* Cursor. */ | |
89 | ovs_be32 *datap; | |
90 | uint32_t i; | |
91 | uint32_t quads; | |
92 | ||
93 | /* Agent. */ | |
94 | struct sflow_addr agentAddr; | |
e731d71b | 95 | char agentIPStr[INET6_ADDRSTRLEN + 2]; |
8073dd31 NM |
96 | uint32_t subAgentId; |
97 | uint32_t uptime_mS; | |
98 | ||
99 | /* Datasource. */ | |
100 | uint32_t dsClass; | |
101 | uint32_t dsIndex; | |
102 | ||
103 | /* Sequence numbers. */ | |
104 | uint32_t dgramSeqNo; | |
105 | uint32_t fsSeqNo; | |
106 | uint32_t csSeqNo; | |
107 | ||
108 | /* Structure offsets. */ | |
109 | struct { | |
110 | uint32_t HEADER; | |
111 | uint32_t SWITCH; | |
50b9699f NM |
112 | uint32_t TUNNEL4_OUT; |
113 | uint32_t TUNNEL4_IN; | |
114 | uint32_t TUNNEL_VNI_OUT; | |
115 | uint32_t TUNNEL_VNI_IN; | |
8073dd31 | 116 | uint32_t IFCOUNTERS; |
50b9699f NM |
117 | uint32_t LACPCOUNTERS; |
118 | uint32_t OPENFLOWPORT; | |
119 | uint32_t PORTNAME; | |
8073dd31 NM |
120 | } offset; |
121 | ||
122 | /* Flow sample fields. */ | |
123 | uint32_t meanSkipCount; | |
124 | uint32_t samplePool; | |
125 | uint32_t dropEvents; | |
126 | uint32_t inputPortFormat; | |
127 | uint32_t inputPort; | |
128 | uint32_t outputPortFormat; | |
129 | uint32_t outputPort; | |
130 | }; | |
131 | ||
132 | #define SFLOWXDR_try(x) ((x->errline = setjmp(x->env)) == 0) | |
133 | #define SFLOWXDR_throw(x) longjmp(x->env, __LINE__) | |
134 | #define SFLOWXDR_assert(x, t) if (!(t)) SFLOWXDR_throw(x) | |
135 | ||
136 | static void | |
137 | sflowxdr_init(struct sflow_xdr *x, void *buf, size_t len) | |
138 | { | |
139 | x->datap = buf; | |
140 | x->quads = len >> 2; | |
141 | } | |
142 | ||
143 | static uint32_t | |
144 | sflowxdr_next(struct sflow_xdr *x) | |
145 | { | |
146 | return ntohl(x->datap[x->i++]); | |
147 | } | |
148 | ||
149 | static ovs_be32 | |
150 | sflowxdr_next_n(struct sflow_xdr *x) | |
151 | { | |
152 | return x->datap[x->i++]; | |
153 | } | |
154 | ||
155 | static bool | |
156 | sflowxdr_more(const struct sflow_xdr *x, uint32_t q) | |
157 | { | |
158 | return q + x->i <= x->quads; | |
159 | } | |
160 | ||
161 | static void | |
162 | sflowxdr_skip(struct sflow_xdr *x, uint32_t q) | |
163 | { | |
164 | x->i += q; | |
165 | } | |
166 | ||
167 | static uint32_t | |
168 | sflowxdr_mark(const struct sflow_xdr *x, uint32_t q) | |
169 | { | |
170 | return x->i + q; | |
171 | } | |
172 | ||
173 | static bool | |
174 | sflowxdr_mark_ok(const struct sflow_xdr *x, uint32_t m) | |
175 | { | |
176 | return m == x->i; | |
177 | } | |
178 | ||
179 | static void | |
180 | sflowxdr_mark_unique(struct sflow_xdr *x, uint32_t *pi) | |
181 | { | |
182 | if (*pi) { | |
183 | SFLOWXDR_throw(x); | |
184 | } | |
185 | *pi = x->i; | |
186 | } | |
187 | ||
188 | static void | |
189 | sflowxdr_setc(struct sflow_xdr *x, uint32_t j) | |
190 | { | |
191 | x->i = j; | |
192 | } | |
193 | ||
194 | static const char * | |
195 | sflowxdr_str(const struct sflow_xdr *x) | |
196 | { | |
197 | return (const char *) (x->datap + x->i); | |
198 | } | |
199 | ||
200 | static uint64_t | |
201 | sflowxdr_next_int64(struct sflow_xdr *x) | |
202 | { | |
203 | uint64_t scratch; | |
204 | scratch = sflowxdr_next(x); | |
205 | scratch <<= 32; | |
206 | scratch += sflowxdr_next(x); | |
207 | return scratch; | |
208 | } | |
209 | ||
210 | static void | |
211 | process_counter_sample(struct sflow_xdr *x) | |
212 | { | |
213 | if (x->offset.IFCOUNTERS) { | |
214 | sflowxdr_setc(x, x->offset.IFCOUNTERS); | |
215 | printf("IFCOUNTERS"); | |
216 | printf(" dgramSeqNo=%"PRIu32, x->dgramSeqNo); | |
217 | printf(" ds=%s>%"PRIu32":%"PRIu32, | |
218 | x->agentIPStr, x->dsClass, x->dsIndex); | |
219 | printf(" csSeqNo=%"PRIu32, x->csSeqNo); | |
220 | printf(" ifindex=%"PRIu32, sflowxdr_next(x)); | |
221 | printf(" type=%"PRIu32, sflowxdr_next(x)); | |
222 | printf(" ifspeed=%"PRIu64, sflowxdr_next_int64(x)); | |
223 | printf(" direction=%"PRIu32, sflowxdr_next(x)); | |
224 | printf(" status=%"PRIu32, sflowxdr_next(x)); | |
225 | printf(" in_octets=%"PRIu64, sflowxdr_next_int64(x)); | |
226 | printf(" in_unicasts=%"PRIu32, sflowxdr_next(x)); | |
227 | printf(" in_multicasts=%"PRIu32, sflowxdr_next(x)); | |
228 | printf(" in_broadcasts=%"PRIu32, sflowxdr_next(x)); | |
229 | printf(" in_discards=%"PRIu32, sflowxdr_next(x)); | |
230 | printf(" in_errors=%"PRIu32, sflowxdr_next(x)); | |
231 | printf(" in_unknownprotos=%"PRIu32, sflowxdr_next(x)); | |
232 | printf(" out_octets=%"PRIu64, sflowxdr_next_int64(x)); | |
233 | printf(" out_unicasts=%"PRIu32, sflowxdr_next(x)); | |
234 | printf(" out_multicasts=%"PRIu32, sflowxdr_next(x)); | |
235 | printf(" out_broadcasts=%"PRIu32, sflowxdr_next(x)); | |
236 | printf(" out_discards=%"PRIu32, sflowxdr_next(x)); | |
237 | printf(" out_errors=%"PRIu32, sflowxdr_next(x)); | |
238 | printf(" promiscuous=%"PRIu32, sflowxdr_next(x)); | |
239 | printf("\n"); | |
240 | } | |
50b9699f NM |
241 | if (x->offset.LACPCOUNTERS) { |
242 | uint8_t *mac; | |
243 | union { | |
244 | ovs_be32 all; | |
245 | struct { | |
246 | uint8_t actorAdmin; | |
247 | uint8_t actorOper; | |
248 | uint8_t partnerAdmin; | |
249 | uint8_t partnerOper; | |
250 | } v; | |
251 | } state; | |
252 | ||
253 | sflowxdr_setc(x, x->offset.LACPCOUNTERS); | |
254 | printf("LACPCOUNTERS"); | |
255 | mac = (uint8_t *)sflowxdr_str(x); | |
256 | printf(" sysID="ETH_ADDR_FMT, ETH_ADDR_ARGS(mac)); | |
257 | sflowxdr_skip(x, 2); | |
258 | mac = (uint8_t *)sflowxdr_str(x); | |
259 | printf(" partnerID="ETH_ADDR_FMT, ETH_ADDR_ARGS(mac)); | |
260 | sflowxdr_skip(x, 2); | |
261 | printf(" aggID=%"PRIu32, sflowxdr_next(x)); | |
262 | state.all = sflowxdr_next_n(x); | |
263 | printf(" actorAdmin=0x%"PRIx32, state.v.actorAdmin); | |
264 | printf(" actorOper=0x%"PRIx32, state.v.actorOper); | |
265 | printf(" partnerAdmin=0x%"PRIx32, state.v.partnerAdmin); | |
266 | printf(" partnerOper=0x%"PRIx32, state.v.partnerOper); | |
267 | printf(" LACPUDsRx=%"PRIu32, sflowxdr_next(x)); | |
268 | printf(" markerPDUsRx=%"PRIu32, sflowxdr_next(x)); | |
269 | printf(" markerRespPDUsRx=%"PRIu32, sflowxdr_next(x)); | |
270 | printf(" unknownRx=%"PRIu32, sflowxdr_next(x)); | |
271 | printf(" illegalRx=%"PRIu32, sflowxdr_next(x)); | |
272 | printf(" LACPUDsTx=%"PRIu32, sflowxdr_next(x)); | |
273 | printf(" markerPDUsTx=%"PRIu32, sflowxdr_next(x)); | |
274 | printf(" markerRespPDUsTx=%"PRIu32, sflowxdr_next(x)); | |
275 | printf("\n"); | |
276 | } | |
277 | if (x->offset.OPENFLOWPORT) { | |
278 | sflowxdr_setc(x, x->offset.OPENFLOWPORT); | |
279 | printf("OPENFLOWPORT"); | |
280 | printf(" datapath_id=%"PRIu64, sflowxdr_next_int64(x)); | |
281 | printf(" port_no=%"PRIu32, sflowxdr_next(x)); | |
282 | printf("\n"); | |
283 | } | |
284 | if (x->offset.PORTNAME) { | |
285 | uint32_t pnLen; | |
286 | const char *pnBytes; | |
287 | char portName[SFL_MAX_PORTNAME_LEN + 1]; | |
288 | sflowxdr_setc(x, x->offset.PORTNAME); | |
289 | printf("PORTNAME"); | |
290 | pnLen = sflowxdr_next(x); | |
291 | SFLOWXDR_assert(x, (pnLen <= SFL_MAX_PORTNAME_LEN)); | |
292 | pnBytes = sflowxdr_str(x); | |
293 | memcpy(portName, pnBytes, pnLen); | |
294 | portName[pnLen] = '\0'; | |
295 | printf(" portName=%s", portName); | |
296 | printf("\n"); | |
297 | } | |
8073dd31 NM |
298 | } |
299 | ||
300 | static char | |
301 | bin_to_hex(int hexit) | |
302 | { | |
303 | return "0123456789ABCDEF"[hexit]; | |
304 | } | |
305 | ||
306 | static int | |
307 | print_hex(const char *a, int len, char *buf, int bufLen) | |
308 | { | |
309 | unsigned char nextByte; | |
310 | int b = 0; | |
311 | int i; | |
312 | ||
313 | for (i = 0; i < len; i++) { | |
314 | if (b > bufLen - 10) { | |
315 | break; | |
316 | } | |
317 | nextByte = a[i]; | |
318 | buf[b++] = bin_to_hex(nextByte >> 4); | |
319 | buf[b++] = bin_to_hex(nextByte & 0x0f); | |
320 | if (i < len - 1) { | |
321 | buf[b++] = '-'; | |
322 | } | |
323 | } | |
324 | buf[b] = '\0'; | |
325 | return b; | |
326 | } | |
327 | ||
50b9699f NM |
328 | static void |
329 | print_struct_ipv4(struct sflow_xdr *x, const char *prefix) | |
330 | { | |
331 | ovs_be32 src, dst; | |
332 | ||
333 | printf(" %s_length=%"PRIu32, prefix, sflowxdr_next(x)); | |
334 | printf(" %s_protocol=%"PRIu32, prefix, sflowxdr_next(x)); | |
335 | ||
336 | src = sflowxdr_next_n(x); | |
337 | dst = sflowxdr_next_n(x); | |
338 | printf(" %s_src="IP_FMT, prefix, IP_ARGS(src)); | |
339 | printf(" %s_dst="IP_FMT, prefix, IP_ARGS(dst)); | |
340 | ||
341 | printf(" %s_src_port=%"PRIu32, prefix, sflowxdr_next(x)); | |
342 | printf(" %s_dst_port=%"PRIu32, prefix, sflowxdr_next(x)); | |
343 | printf(" %s_tcp_flags=%"PRIu32, prefix, sflowxdr_next(x)); | |
344 | printf(" %s_tos=%"PRIu32, prefix, sflowxdr_next(x)); | |
345 | } | |
346 | ||
8073dd31 NM |
347 | #define SFLOW_HEX_SCRATCH 1024 |
348 | ||
349 | static void | |
350 | process_flow_sample(struct sflow_xdr *x) | |
351 | { | |
352 | if (x->offset.HEADER) { | |
353 | uint32_t headerLen; | |
354 | char scratch[SFLOW_HEX_SCRATCH]; | |
355 | ||
356 | printf("HEADER"); | |
357 | printf(" dgramSeqNo=%"PRIu32, x->dgramSeqNo); | |
358 | printf(" ds=%s>%"PRIu32":%"PRIu32, | |
359 | x->agentIPStr, x->dsClass, x->dsIndex); | |
360 | printf(" fsSeqNo=%"PRIu32, x->fsSeqNo); | |
361 | ||
50b9699f NM |
362 | if (x->offset.TUNNEL4_IN) { |
363 | sflowxdr_setc(x, x->offset.TUNNEL4_IN); | |
364 | print_struct_ipv4(x, "tunnel4_in"); | |
365 | } | |
366 | ||
367 | if (x->offset.TUNNEL4_OUT) { | |
368 | sflowxdr_setc(x, x->offset.TUNNEL4_OUT); | |
369 | print_struct_ipv4(x, "tunnel4_out"); | |
370 | } | |
371 | ||
372 | if (x->offset.TUNNEL_VNI_IN) { | |
373 | sflowxdr_setc(x, x->offset.TUNNEL_VNI_IN); | |
374 | printf( " tunnel_in_vni=%"PRIu32, sflowxdr_next(x)); | |
375 | } | |
376 | ||
377 | if (x->offset.TUNNEL_VNI_OUT) { | |
378 | sflowxdr_setc(x, x->offset.TUNNEL_VNI_OUT); | |
379 | printf( " tunnel_out_vni=%"PRIu32, sflowxdr_next(x)); | |
380 | } | |
381 | ||
8073dd31 NM |
382 | if (x->offset.SWITCH) { |
383 | sflowxdr_setc(x, x->offset.SWITCH); | |
384 | printf(" in_vlan=%"PRIu32, sflowxdr_next(x)); | |
385 | printf(" in_priority=%"PRIu32, sflowxdr_next(x)); | |
386 | printf(" out_vlan=%"PRIu32, sflowxdr_next(x)); | |
387 | printf(" out_priority=%"PRIu32, sflowxdr_next(x)); | |
388 | } | |
389 | ||
390 | sflowxdr_setc(x, x->offset.HEADER); | |
391 | printf(" meanSkip=%"PRIu32, x->meanSkipCount); | |
392 | printf(" samplePool=%"PRIu32, x->samplePool); | |
393 | printf(" dropEvents=%"PRIu32, x->dropEvents); | |
394 | printf(" in_ifindex=%"PRIu32, x->inputPort); | |
395 | printf(" in_format=%"PRIu32, x->inputPortFormat); | |
396 | printf(" out_ifindex=%"PRIu32, x->outputPort); | |
397 | printf(" out_format=%"PRIu32, x->outputPortFormat); | |
398 | printf(" hdr_prot=%"PRIu32, sflowxdr_next(x)); | |
399 | printf(" pkt_len=%"PRIu32, sflowxdr_next(x)); | |
400 | printf(" stripped=%"PRIu32, sflowxdr_next(x)); | |
401 | headerLen = sflowxdr_next(x); | |
402 | printf(" hdr_len=%"PRIu32, headerLen); | |
403 | print_hex(sflowxdr_str(x), headerLen, scratch, SFLOW_HEX_SCRATCH); | |
404 | printf(" hdr=%s", scratch); | |
405 | printf("\n"); | |
406 | } | |
407 | } | |
408 | ||
409 | static void | |
410 | process_datagram(struct sflow_xdr *x) | |
411 | { | |
412 | uint32_t samples, s; | |
413 | ||
414 | SFLOWXDR_assert(x, (sflowxdr_next(x) == SFLOW_VERSION_5)); | |
415 | ||
416 | /* Read the sFlow header. */ | |
417 | x->agentAddr.type = sflowxdr_next(x); | |
418 | switch (x->agentAddr.type) { | |
419 | case SFLOW_ADDRTYPE_IP4: | |
420 | x->agentAddr.a.ip4 = sflowxdr_next_n(x); | |
421 | break; | |
422 | ||
423 | case SFLOW_ADDRTYPE_IP6: | |
424 | x->agentAddr.a.ip6[0] = sflowxdr_next_n(x); | |
425 | x->agentAddr.a.ip6[1] = sflowxdr_next_n(x); | |
426 | x->agentAddr.a.ip6[2] = sflowxdr_next_n(x); | |
427 | x->agentAddr.a.ip6[3] = sflowxdr_next_n(x); | |
428 | break; | |
429 | ||
430 | case SFLOW_ADDRTYPE_undefined: | |
431 | default: | |
432 | SFLOWXDR_throw(x); | |
433 | break; | |
434 | } | |
435 | x->subAgentId = sflowxdr_next(x); | |
436 | x->dgramSeqNo = sflowxdr_next(x); | |
437 | x->uptime_mS = sflowxdr_next(x); | |
438 | ||
439 | /* Store the agent address as a string. */ | |
440 | if (x->agentAddr.type == SFLOW_ADDRTYPE_IP6) { | |
e731d71b AS |
441 | char ipstr[INET6_ADDRSTRLEN]; |
442 | inet_ntop(AF_INET6, (const void *) &x->agentAddr.a.ip6, | |
443 | ipstr, INET6_ADDRSTRLEN); | |
444 | snprintf(x->agentIPStr, sizeof x->agentIPStr, "[%s]", ipstr); | |
8073dd31 | 445 | } else { |
e731d71b | 446 | snprintf(x->agentIPStr, sizeof x->agentIPStr, |
8073dd31 NM |
447 | IP_FMT, IP_ARGS(x->agentAddr.a.ip4)); |
448 | } | |
449 | ||
450 | /* Array of flow/counter samples. */ | |
451 | samples = sflowxdr_next(x); | |
452 | for (s = 0; s < samples; s++) { | |
453 | uint32_t sType = sflowxdr_next(x); | |
454 | uint32_t sQuads = sflowxdr_next(x) >> 2; | |
455 | uint32_t sMark = sflowxdr_mark(x, sQuads); | |
456 | SFLOWXDR_assert(x, sflowxdr_more(x, sQuads)); | |
457 | ||
458 | switch (sType) { | |
459 | case SFLOW_COUNTERS_SAMPLE_EXPANDED: | |
460 | case SFLOW_COUNTERS_SAMPLE: | |
461 | { | |
462 | uint32_t csElements, e; | |
463 | uint32_t ceTag, ceQuads, ceMark, csEnd; | |
464 | ||
465 | x->csSeqNo = sflowxdr_next(x); | |
466 | if (sType == SFLOW_COUNTERS_SAMPLE_EXPANDED) { | |
467 | x->dsClass = sflowxdr_next(x); | |
468 | x->dsIndex = sflowxdr_next(x); | |
469 | } else { | |
470 | uint32_t dsCombined = sflowxdr_next(x); | |
471 | x->dsClass = dsCombined >> 24; | |
472 | x->dsIndex = dsCombined & 0x00FFFFFF; | |
473 | } | |
474 | ||
475 | csElements = sflowxdr_next(x); | |
476 | for (e = 0; e < csElements; e++) { | |
477 | SFLOWXDR_assert(x, sflowxdr_more(x,2)); | |
478 | ceTag = sflowxdr_next(x); | |
479 | ceQuads = sflowxdr_next(x) >> 2; | |
480 | ceMark = sflowxdr_mark(x, ceQuads); | |
481 | SFLOWXDR_assert(x, sflowxdr_more(x,ceQuads)); | |
482 | /* Only care about selected structures. Just record their | |
483 | * offsets here. We'll read the fields out later. */ | |
484 | switch (ceTag) { | |
485 | case SFLOW_TAG_CTR_IFCOUNTERS: | |
486 | sflowxdr_mark_unique(x, &x->offset.IFCOUNTERS); | |
487 | break; | |
50b9699f NM |
488 | case SFLOW_TAG_CTR_LACPCOUNTERS: |
489 | sflowxdr_mark_unique(x, &x->offset.LACPCOUNTERS); | |
490 | break; | |
491 | case SFLOW_TAG_CTR_PORTNAME: | |
492 | sflowxdr_mark_unique(x, &x->offset.PORTNAME); | |
493 | break; | |
494 | case SFLOW_TAG_CTR_OPENFLOWPORT: | |
495 | sflowxdr_mark_unique(x, &x->offset.OPENFLOWPORT); | |
496 | break; | |
8073dd31 NM |
497 | |
498 | /* Add others here... */ | |
499 | } | |
500 | ||
501 | sflowxdr_skip(x, ceQuads); | |
502 | SFLOWXDR_assert(x, sflowxdr_mark_ok(x, ceMark)); | |
503 | } | |
504 | ||
505 | csEnd = sflowxdr_mark(x, 0); | |
506 | process_counter_sample(x); | |
507 | /* Make sure we pick up the decoding where we left off. */ | |
508 | sflowxdr_setc(x, csEnd); | |
509 | ||
510 | /* Clear the offsets for the next sample. */ | |
511 | memset(&x->offset, 0, sizeof x->offset); | |
512 | } | |
513 | break; | |
514 | ||
515 | case SFLOW_FLOW_SAMPLE: | |
516 | case SFLOW_FLOW_SAMPLE_EXPANDED: | |
517 | { | |
518 | uint32_t fsElements, e; | |
519 | uint32_t feTag, feQuads, feMark, fsEnd; | |
520 | x->fsSeqNo = sflowxdr_next(x); | |
521 | if (sType == SFLOW_FLOW_SAMPLE_EXPANDED) { | |
522 | x->dsClass = sflowxdr_next(x); | |
523 | x->dsIndex = sflowxdr_next(x); | |
524 | } else { | |
525 | uint32_t dsCombined = sflowxdr_next(x); | |
526 | x->dsClass = dsCombined >> 24; | |
527 | x->dsIndex = dsCombined & 0x00FFFFFF; | |
528 | } | |
529 | x->meanSkipCount = sflowxdr_next(x); | |
530 | x->samplePool = sflowxdr_next(x); | |
531 | x->dropEvents = sflowxdr_next(x); | |
532 | if (sType == SFLOW_FLOW_SAMPLE_EXPANDED) { | |
533 | x->inputPortFormat = sflowxdr_next(x); | |
534 | x->inputPort = sflowxdr_next(x); | |
535 | x->outputPortFormat = sflowxdr_next(x); | |
536 | x->outputPort = sflowxdr_next(x); | |
537 | } else { | |
538 | uint32_t inp, outp; | |
539 | ||
540 | inp = sflowxdr_next(x); | |
541 | outp = sflowxdr_next(x); | |
542 | x->inputPortFormat = inp >> 30; | |
543 | x->inputPort = inp & 0x3fffffff; | |
544 | x->outputPortFormat = outp >> 30; | |
545 | x->outputPort = outp & 0x3fffffff; | |
546 | } | |
547 | fsElements = sflowxdr_next(x); | |
548 | for (e = 0; e < fsElements; e++) { | |
549 | SFLOWXDR_assert(x, sflowxdr_more(x,2)); | |
550 | feTag = sflowxdr_next(x); | |
551 | feQuads = sflowxdr_next(x) >> 2; | |
552 | feMark = sflowxdr_mark(x, feQuads); | |
553 | SFLOWXDR_assert(x, sflowxdr_more(x,feQuads)); | |
554 | /* Only care about selected structures. Just record their | |
555 | * offsets here. We'll read the fields out below. */ | |
556 | switch (feTag) { | |
557 | case SFLOW_TAG_PKT_HEADER: | |
558 | sflowxdr_mark_unique(x, &x->offset.HEADER); | |
559 | break; | |
560 | ||
561 | case SFLOW_TAG_PKT_SWITCH: | |
562 | sflowxdr_mark_unique(x, &x->offset.SWITCH); | |
563 | break; | |
564 | ||
50b9699f NM |
565 | case SFLOW_TAG_PKT_TUNNEL4_OUT: |
566 | sflowxdr_mark_unique(x, &x->offset.TUNNEL4_OUT); | |
567 | break; | |
568 | ||
569 | case SFLOW_TAG_PKT_TUNNEL4_IN: | |
570 | sflowxdr_mark_unique(x, &x->offset.TUNNEL4_IN); | |
571 | break; | |
572 | ||
573 | case SFLOW_TAG_PKT_TUNNEL_VNI_OUT: | |
574 | sflowxdr_mark_unique(x, &x->offset.TUNNEL_VNI_OUT); | |
575 | break; | |
576 | ||
577 | case SFLOW_TAG_PKT_TUNNEL_VNI_IN: | |
578 | sflowxdr_mark_unique(x, &x->offset.TUNNEL_VNI_IN); | |
579 | break; | |
580 | ||
8073dd31 NM |
581 | /* Add others here... */ |
582 | } | |
583 | ||
584 | sflowxdr_skip(x, feQuads); | |
585 | SFLOWXDR_assert(x, sflowxdr_mark_ok(x, feMark)); | |
586 | } | |
587 | ||
588 | fsEnd = sflowxdr_mark(x, 0); | |
589 | process_flow_sample(x); | |
590 | /* Make sure we pick up the decoding where we left off. */ | |
591 | sflowxdr_setc(x, fsEnd); | |
592 | ||
593 | /* Clear the offsets for the next counter/flow sample. */ | |
594 | memset(&x->offset, 0, sizeof x->offset); | |
595 | } | |
596 | break; | |
597 | ||
598 | default: | |
599 | /* Skip other sample types. */ | |
600 | sflowxdr_skip(x, sQuads); | |
601 | } | |
602 | SFLOWXDR_assert(x, sflowxdr_mark_ok(x, sMark)); | |
603 | } | |
604 | } | |
605 | ||
606 | static void | |
607 | print_sflow(struct ofpbuf *buf) | |
608 | { | |
609 | char *dgram_buf; | |
6fd6ed71 | 610 | int dgram_len = buf->size; |
8073dd31 NM |
611 | struct sflow_xdr xdrDatagram; |
612 | struct sflow_xdr *x = &xdrDatagram; | |
613 | ||
614 | memset(x, 0, sizeof *x); | |
615 | if (SFLOWXDR_try(x)) { | |
6fd6ed71 | 616 | SFLOWXDR_assert(x, (dgram_buf = ofpbuf_try_pull(buf, buf->size))); |
8073dd31 NM |
617 | sflowxdr_init(x, dgram_buf, dgram_len); |
618 | SFLOWXDR_assert(x, dgram_len >= SFLOW_MIN_LEN); | |
619 | process_datagram(x); | |
620 | } else { | |
621 | // CATCH | |
622 | printf("\n>>>>> ERROR in " __FILE__ " at line %u\n", x->errline); | |
623 | } | |
624 | } | |
625 | ||
eadd1644 AZ |
626 | static void |
627 | test_sflow_main(int argc, char *argv[]) | |
8073dd31 NM |
628 | { |
629 | struct unixctl_server *server; | |
630 | enum { MAX_RECV = 1500 }; | |
631 | const char *target; | |
632 | struct ofpbuf buf; | |
633 | bool exiting = false; | |
634 | int error; | |
635 | int sock; | |
636 | ||
5f383751 | 637 | ovs_cmdl_proctitle_init(argc, argv); |
8073dd31 | 638 | set_program_name(argv[0]); |
8f26aeb9 | 639 | service_start(&argc, &argv); |
8073dd31 NM |
640 | parse_options(argc, argv); |
641 | ||
642 | if (argc - optind != 1) { | |
643 | ovs_fatal(0, "exactly one non-option argument required " | |
644 | "(use --help for help)"); | |
645 | } | |
646 | target = argv[optind]; | |
647 | ||
b52ecd96 | 648 | sock = inet_open_passive(SOCK_DGRAM, target, 0, NULL, 0, true); |
8073dd31 | 649 | if (sock < 0) { |
2dd88e5d | 650 | ovs_fatal(0, "%s: failed to open (%s)", target, ovs_strerror(-sock)); |
8073dd31 NM |
651 | } |
652 | ||
653 | daemon_save_fd(STDOUT_FILENO); | |
654 | daemonize_start(); | |
655 | ||
656 | error = unixctl_server_create(NULL, &server); | |
657 | if (error) { | |
658 | ovs_fatal(error, "failed to create unixctl server"); | |
659 | } | |
660 | unixctl_command_register("exit", "", 0, 0, test_sflow_exit, &exiting); | |
661 | ||
662 | daemonize_complete(); | |
663 | ||
664 | ofpbuf_init(&buf, MAX_RECV); | |
665 | for (;;) { | |
666 | int retval; | |
667 | ||
668 | unixctl_server_run(server); | |
669 | ||
670 | ofpbuf_clear(&buf); | |
671 | do { | |
6fd6ed71 | 672 | retval = recv(sock, buf.data, buf.allocated, 0); |
8073dd31 NM |
673 | } while (retval < 0 && errno == EINTR); |
674 | if (retval > 0) { | |
675 | ofpbuf_put_uninit(&buf, retval); | |
676 | print_sflow(&buf); | |
677 | fflush(stdout); | |
678 | } | |
679 | ||
680 | if (exiting) { | |
681 | break; | |
682 | } | |
683 | ||
684 | poll_fd_wait(sock, POLLIN); | |
685 | unixctl_server_wait(server); | |
686 | poll_block(); | |
687 | } | |
8073dd31 NM |
688 | } |
689 | ||
690 | static void | |
691 | parse_options(int argc, char *argv[]) | |
692 | { | |
693 | enum { | |
977529e4 BP |
694 | DAEMON_OPTION_ENUMS, |
695 | VLOG_OPTION_ENUMS | |
8073dd31 | 696 | }; |
07fc4ed3 | 697 | static const struct option long_options[] = { |
8073dd31 NM |
698 | {"verbose", optional_argument, NULL, 'v'}, |
699 | {"help", no_argument, NULL, 'h'}, | |
700 | DAEMON_LONG_OPTIONS, | |
977529e4 | 701 | VLOG_LONG_OPTIONS, |
8073dd31 NM |
702 | {NULL, 0, NULL, 0}, |
703 | }; | |
5f383751 | 704 | char *short_options = ovs_cmdl_long_options_to_short_options(long_options); |
8073dd31 NM |
705 | |
706 | for (;;) { | |
707 | int c = getopt_long(argc, argv, short_options, long_options, NULL); | |
708 | if (c == -1) { | |
709 | break; | |
710 | } | |
711 | ||
712 | switch (c) { | |
713 | case 'h': | |
714 | usage(); | |
715 | ||
977529e4 BP |
716 | DAEMON_OPTION_HANDLERS |
717 | VLOG_OPTION_HANDLERS | |
8073dd31 NM |
718 | |
719 | case '?': | |
720 | exit(EXIT_FAILURE); | |
721 | ||
722 | default: | |
723 | abort(); | |
724 | } | |
725 | } | |
726 | free(short_options); | |
727 | } | |
728 | ||
729 | static void | |
730 | usage(void) | |
731 | { | |
732 | printf("%s: sflow collector test utility\n" | |
733 | "usage: %s [OPTIONS] PORT[:IP]\n" | |
734 | "where PORT is the UDP port to listen on and IP is optionally\n" | |
735 | "the IP address to listen on.\n", | |
736 | program_name, program_name); | |
737 | daemon_usage(); | |
738 | vlog_usage(); | |
739 | printf("\nOther options:\n" | |
740 | " -h, --help display this help message\n"); | |
741 | exit(EXIT_SUCCESS); | |
742 | } | |
743 | ||
744 | static void | |
745 | test_sflow_exit(struct unixctl_conn *conn, | |
746 | int argc OVS_UNUSED, const char *argv[] OVS_UNUSED, | |
747 | void *exiting_) | |
748 | { | |
749 | bool *exiting = exiting_; | |
750 | *exiting = true; | |
751 | unixctl_command_reply(conn, NULL); | |
752 | } | |
eadd1644 AZ |
753 | |
754 | OVSTEST_REGISTER("test-sflow", test_sflow_main); |