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17f7f7e0 | 1 | /* |
fd13c6b5 | 2 | * Copyright (c) 2011, 2012, 2013, 2014, 2015, 2017 Nicira, Inc. |
17f7f7e0 BP |
3 | * |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
5 | * you may not use this file except in compliance with the License. | |
6 | * You may obtain a copy of the License at: | |
7 | * | |
8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
9 | * | |
10 | * Unless required by applicable law or agreed to in writing, software | |
11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
13 | * See the License for the specific language governing permissions and | |
14 | * limitations under the License. | |
15 | */ | |
16 | ||
17 | #include <config.h> | |
3f636c7e JR |
18 | #undef NDEBUG |
19 | #include "netflow.h" | |
17f7f7e0 BP |
20 | #include <errno.h> |
21 | #include <getopt.h> | |
22 | #include <signal.h> | |
23 | #include <stdlib.h> | |
24 | #include <unistd.h> | |
17f7f7e0 BP |
25 | #include "command-line.h" |
26 | #include "daemon.h" | |
3e8a2ad1 | 27 | #include "openvswitch/dynamic-string.h" |
64c96779 | 28 | #include "openvswitch/ofpbuf.h" |
3f636c7e | 29 | #include "ovstest.h" |
17f7f7e0 | 30 | #include "packets.h" |
fd016ae3 | 31 | #include "openvswitch/poll-loop.h" |
17f7f7e0 BP |
32 | #include "socket-util.h" |
33 | #include "unixctl.h" | |
34 | #include "util.h" | |
e6211adc | 35 | #include "openvswitch/vlog.h" |
17f7f7e0 | 36 | |
cab50449 | 37 | OVS_NO_RETURN static void usage(void); |
17f7f7e0 BP |
38 | static void parse_options(int argc, char *argv[]); |
39 | ||
40 | static unixctl_cb_func test_netflow_exit; | |
41 | ||
42 | static void | |
43 | print_netflow(struct ofpbuf *buf) | |
44 | { | |
45 | const struct netflow_v5_header *hdr; | |
46 | int i; | |
47 | ||
48 | hdr = ofpbuf_try_pull(buf, sizeof *hdr); | |
49 | if (!hdr) { | |
50 | printf("truncated NetFlow packet header\n"); | |
51 | return; | |
52 | } | |
53 | printf("header: v%"PRIu16", " | |
54 | "uptime %"PRIu32", " | |
55 | "now %"PRIu32".%09"PRIu32", " | |
56 | "seq %"PRIu32", " | |
57 | "engine %"PRIu8",%"PRIu8, | |
58 | ntohs(hdr->version), | |
59 | ntohl(hdr->sysuptime), | |
60 | ntohl(hdr->unix_secs), ntohl(hdr->unix_nsecs), | |
61 | ntohl(hdr->flow_seq), | |
62 | hdr->engine_type, hdr->engine_id); | |
63 | if (hdr->sampling_interval != htons(0)) { | |
64 | printf(", interval %"PRIu16, ntohs(hdr->sampling_interval)); | |
65 | } | |
66 | putchar('\n'); | |
67 | ||
68 | for (i = 0; i < ntohs(hdr->count); i++) { | |
69 | struct netflow_v5_record *rec; | |
70 | ||
71 | rec = ofpbuf_try_pull(buf, sizeof *rec); | |
72 | if (!rec) { | |
73 | printf("truncated NetFlow records\n"); | |
74 | return; | |
75 | } | |
76 | ||
52440c19 | 77 | printf("seq %"PRIu32": "IP_FMT" > "IP_FMT, ntohl(hdr->flow_seq), |
ed36537e | 78 | IP_ARGS(rec->src_addr), IP_ARGS(rec->dst_addr)); |
17f7f7e0 BP |
79 | |
80 | printf(", if %"PRIu16" > %"PRIu16, | |
81 | ntohs(rec->input), ntohs(rec->output)); | |
82 | ||
83 | printf(", %"PRIu32" pkts, %"PRIu32" bytes", | |
84 | ntohl(rec->packet_count), ntohl(rec->byte_count)); | |
85 | ||
86 | switch (rec->ip_proto) { | |
87 | case IPPROTO_TCP: | |
88 | printf(", TCP %"PRIu16" > %"PRIu16, | |
89 | ntohs(rec->src_port), ntohs(rec->dst_port)); | |
90 | if (rec->tcp_flags) { | |
7393104d BP |
91 | struct ds s = DS_EMPTY_INITIALIZER; |
92 | packet_format_tcp_flags(&s, rec->tcp_flags); | |
93 | printf(" %s", ds_cstr(&s)); | |
94 | ds_destroy(&s); | |
17f7f7e0 BP |
95 | } |
96 | break; | |
97 | ||
98 | case IPPROTO_UDP: | |
99 | printf(", UDP %"PRIu16" > %"PRIu16, | |
100 | ntohs(rec->src_port), ntohs(rec->dst_port)); | |
101 | break; | |
102 | ||
0d56eaf2 JS |
103 | case IPPROTO_SCTP: |
104 | printf(", SCTP %"PRIu16" > %"PRIu16, | |
105 | ntohs(rec->src_port), ntohs(rec->dst_port)); | |
106 | break; | |
107 | ||
17f7f7e0 | 108 | case IPPROTO_ICMP: |
fd13c6b5 | 109 | printf(", ICMP %u:%u", |
17f7f7e0 BP |
110 | ntohs(rec->dst_port) >> 8, |
111 | ntohs(rec->dst_port) & 0xff); | |
112 | if (rec->src_port != htons(0)) { | |
113 | printf(", src_port=%"PRIu16, ntohs(rec->src_port)); | |
114 | } | |
115 | break; | |
116 | ||
117 | default: | |
118 | printf(", proto %"PRIu8, rec->ip_proto); | |
119 | break; | |
120 | } | |
121 | ||
122 | if (rec->ip_proto != IPPROTO_TCP && rec->tcp_flags != 0) { | |
123 | printf(", flags %"PRIx8, rec->tcp_flags); | |
124 | } | |
125 | ||
126 | if (rec->ip_proto != IPPROTO_TCP && | |
127 | rec->ip_proto != IPPROTO_UDP && | |
0d56eaf2 | 128 | rec->ip_proto != IPPROTO_SCTP && |
17f7f7e0 BP |
129 | rec->ip_proto != IPPROTO_ICMP) { |
130 | if (rec->src_port != htons(0)) { | |
131 | printf(", src_port %"PRIu16, ntohs(rec->src_port)); | |
132 | } | |
133 | if (rec->dst_port != htons(0)) { | |
134 | printf(", dst_port %"PRIu16, ntohs(rec->dst_port)); | |
135 | } | |
136 | } | |
137 | ||
138 | if (rec->ip_tos) { | |
139 | printf(", TOS %"PRIx8, rec->ip_tos); | |
140 | } | |
141 | ||
142 | printf(", time %"PRIu32"...%"PRIu32, | |
143 | ntohl(rec->init_time), ntohl(rec->used_time)); | |
144 | ||
145 | if (rec->nexthop != htonl(0)) { | |
ed36537e | 146 | printf(", nexthop "IP_FMT, IP_ARGS(rec->nexthop)); |
17f7f7e0 BP |
147 | } |
148 | if (rec->src_as != htons(0) || rec->dst_as != htons(0)) { | |
149 | printf(", AS %"PRIu16" > %"PRIu16, | |
150 | ntohs(rec->src_as), ntohs(rec->dst_as)); | |
151 | } | |
152 | if (rec->src_mask != 0 || rec->dst_mask != 0) { | |
153 | printf(", mask %"PRIu8" > %"PRIu8, rec->src_mask, rec->dst_mask); | |
154 | } | |
155 | if (rec->pad1) { | |
156 | printf(", pad1 %"PRIu8, rec->pad1); | |
157 | } | |
158 | if (rec->pad[0] || rec->pad[1]) { | |
159 | printf(", pad %"PRIu8", %"PRIu8, rec->pad[0], rec->pad[1]); | |
160 | } | |
161 | putchar('\n'); | |
162 | } | |
163 | ||
6fd6ed71 PS |
164 | if (buf->size) { |
165 | printf("%"PRIu32" extra bytes after last record\n", buf->size); | |
17f7f7e0 BP |
166 | } |
167 | } | |
168 | ||
eadd1644 AZ |
169 | static void |
170 | test_netflow_main(int argc, char *argv[]) | |
17f7f7e0 BP |
171 | { |
172 | struct unixctl_server *server; | |
173 | enum { MAX_RECV = 1500 }; | |
174 | const char *target; | |
175 | struct ofpbuf buf; | |
176 | bool exiting = false; | |
177 | int error; | |
178 | int sock; | |
17f7f7e0 BP |
179 | int n; |
180 | ||
5f383751 | 181 | ovs_cmdl_proctitle_init(argc, argv); |
17f7f7e0 | 182 | set_program_name(argv[0]); |
8f26aeb9 | 183 | service_start(&argc, &argv); |
17f7f7e0 BP |
184 | parse_options(argc, argv); |
185 | ||
186 | if (argc - optind != 1) { | |
187 | ovs_fatal(0, "exactly one non-option argument required " | |
188 | "(use --help for help)"); | |
189 | } | |
190 | target = argv[optind]; | |
191 | ||
b52ecd96 | 192 | sock = inet_open_passive(SOCK_DGRAM, target, 0, NULL, 0, true); |
17f7f7e0 | 193 | if (sock < 0) { |
10a89ef0 | 194 | ovs_fatal(0, "%s: failed to open (%s)", argv[1], ovs_strerror(-sock)); |
17f7f7e0 BP |
195 | } |
196 | ||
7d0c5973 | 197 | daemon_save_fd(STDOUT_FILENO); |
e91b927d | 198 | daemonize_start(false); |
17f7f7e0 BP |
199 | |
200 | error = unixctl_server_create(NULL, &server); | |
201 | if (error) { | |
202 | ovs_fatal(error, "failed to create unixctl server"); | |
203 | } | |
204 | unixctl_command_register("exit", "", 0, 0, test_netflow_exit, &exiting); | |
205 | ||
206 | daemonize_complete(); | |
207 | ||
17f7f7e0 BP |
208 | ofpbuf_init(&buf, MAX_RECV); |
209 | n = 0; | |
210 | for (;;) { | |
211 | int retval; | |
212 | ||
213 | unixctl_server_run(server); | |
214 | ||
215 | ofpbuf_clear(&buf); | |
216 | do { | |
6fd6ed71 | 217 | retval = recv(sock, buf.data, buf.allocated, 0); |
17f7f7e0 BP |
218 | } while (retval < 0 && errno == EINTR); |
219 | if (retval > 0) { | |
220 | ofpbuf_put_uninit(&buf, retval); | |
221 | if (n++ > 0) { | |
222 | putchar('\n'); | |
223 | } | |
224 | print_netflow(&buf); | |
225 | fflush(stdout); | |
226 | } | |
227 | ||
228 | if (exiting) { | |
229 | break; | |
230 | } | |
231 | ||
232 | poll_fd_wait(sock, POLLIN); | |
233 | unixctl_server_wait(server); | |
234 | poll_block(); | |
235 | } | |
952ba185 WT |
236 | |
237 | ofpbuf_uninit(&buf); | |
238 | unixctl_server_destroy(server); | |
17f7f7e0 BP |
239 | } |
240 | ||
241 | static void | |
242 | parse_options(int argc, char *argv[]) | |
243 | { | |
244 | enum { | |
977529e4 BP |
245 | DAEMON_OPTION_ENUMS, |
246 | VLOG_OPTION_ENUMS | |
17f7f7e0 | 247 | }; |
07fc4ed3 | 248 | static const struct option long_options[] = { |
17f7f7e0 BP |
249 | {"help", no_argument, NULL, 'h'}, |
250 | DAEMON_LONG_OPTIONS, | |
977529e4 | 251 | VLOG_LONG_OPTIONS, |
17f7f7e0 BP |
252 | {NULL, 0, NULL, 0}, |
253 | }; | |
5f383751 | 254 | char *short_options = ovs_cmdl_long_options_to_short_options(long_options); |
17f7f7e0 BP |
255 | |
256 | for (;;) { | |
257 | int c = getopt_long(argc, argv, short_options, long_options, NULL); | |
258 | if (c == -1) { | |
259 | break; | |
260 | } | |
261 | ||
262 | switch (c) { | |
263 | case 'h': | |
264 | usage(); | |
265 | ||
17f7f7e0 | 266 | DAEMON_OPTION_HANDLERS |
977529e4 | 267 | VLOG_OPTION_HANDLERS |
17f7f7e0 BP |
268 | |
269 | case '?': | |
270 | exit(EXIT_FAILURE); | |
271 | ||
272 | default: | |
273 | abort(); | |
274 | } | |
275 | } | |
276 | free(short_options); | |
277 | } | |
278 | ||
279 | static void | |
280 | usage(void) | |
281 | { | |
282 | printf("%s: netflow collector test utility\n" | |
283 | "usage: %s [OPTIONS] PORT[:IP]\n" | |
284 | "where PORT is the UDP port to listen on and IP is optionally\n" | |
285 | "the IP address to listen on.\n", | |
286 | program_name, program_name); | |
287 | daemon_usage(); | |
288 | vlog_usage(); | |
289 | printf("\nOther options:\n" | |
290 | " -h, --help display this help message\n"); | |
291 | exit(EXIT_SUCCESS); | |
292 | } | |
293 | ||
294 | static void | |
295 | test_netflow_exit(struct unixctl_conn *conn, | |
296 | int argc OVS_UNUSED, const char *argv[] OVS_UNUSED, | |
297 | void *exiting_) | |
298 | { | |
299 | bool *exiting = exiting_; | |
300 | *exiting = true; | |
bde9f75d | 301 | unixctl_command_reply(conn, NULL); |
17f7f7e0 | 302 | } |
eadd1644 AZ |
303 | |
304 | OVSTEST_REGISTER("test-netflow", test_netflow_main); |