1 /* 2 * iperf, Copyright (c) 2014-2017, The Regents of the University of 3 * California, through Lawrence Berkeley National Laboratory (subject 4 * to receipt of any required approvals from the U.S. Dept. of 5 * Energy). All rights reserved. 6 * 7 * If you have questions about your rights to use or distribute this 8 * software, please contact Berkeley Lab's Technology Transfer 9 * Department at [email protected]. 10 * 11 * NOTICE. This software is owned by the U.S. Department of Energy. 12 * As such, the U.S. Government has been granted for itself and others 13 * acting on its behalf a paid-up, nonexclusive, irrevocable, 14 * worldwide license in the Software to reproduce, prepare derivative 15 * works, and perform publicly and display publicly. Beginning five 16 * (5) years after the date permission to assert copyright is obtained 17 * from the U.S. Department of Energy, and subject to any subsequent 18 * five (5) year renewals, the U.S. Government is granted for itself 19 * and others acting on its behalf a paid-up, nonexclusive, 20 * irrevocable, worldwide license in the Software to reproduce, 21 * prepare derivative works, distribute copies to the public, perform 22 * publicly and display publicly, and to permit others to do so. 23 * 24 * This code is distributed under a BSD style license, see the LICENSE 25 * file for complete information. 26 */ 27 #ifndef __IPERF_API_H 28 #define __IPERF_API_H 29 30 #include <sys/time.h> 31 #include <setjmp.h> 32 #include <stdio.h> 33 #ifdef HAVE_STDINT_H 34 #include <stdint.h> 35 #endif 36 #ifdef __cplusplus 37 extern "C" { /* open extern "C" */ 38 #endif 39 40 41 struct iperf_test; 42 struct iperf_stream_result; 43 struct iperf_interval_results; 44 struct iperf_stream; 45 46 /* default settings */ 47 #define Ptcp SOCK_STREAM 48 #define Pudp SOCK_DGRAM 49 #define Psctp 12 50 #define DEFAULT_UDP_BLKSIZE 1460 /* default is dynamically set, else this */ 51 #define DEFAULT_TCP_BLKSIZE (128 * 1024) /* default read/write block size */ 52 #define DEFAULT_SCTP_BLKSIZE (64 * 1024) 53 54 /* short option equivalents, used to support options that only have long form */ 55 #define OPT_SCTP 1 56 #define OPT_LOGFILE 2 57 #define OPT_GET_SERVER_OUTPUT 3 58 #define OPT_UDP_COUNTERS_64BIT 4 59 #define OPT_CLIENT_PORT 5 60 #define OPT_NUMSTREAMS 6 61 #define OPT_FORCEFLUSH 7 62 #define OPT_NO_FQ_SOCKET_PACING 9 /* UNUSED */ 63 #define OPT_FQ_RATE 10 64 #define OPT_DSCP 11 65 #define OPT_CLIENT_USERNAME 12 66 #define OPT_CLIENT_RSA_PUBLIC_KEY 13 67 #define OPT_SERVER_RSA_PRIVATE_KEY 14 68 #define OPT_SERVER_AUTHORIZED_USERS 15 69 #define OPT_PACING_TIMER 16 70 #define OPT_CONNECT_TIMEOUT 17 71 72 /* states */ 73 #define TEST_START 1 74 #define TEST_RUNNING 2 75 #define RESULT_REQUEST 3 76 #define TEST_END 4 77 #define STREAM_BEGIN 5 78 #define STREAM_RUNNING 6 79 #define STREAM_END 7 80 #define ALL_STREAMS_END 8 81 #define PARAM_EXCHANGE 9 82 #define CREATE_STREAMS 10 83 #define SERVER_TERMINATE 11 84 #define CLIENT_TERMINATE 12 85 #define EXCHANGE_RESULTS 13 86 #define DISPLAY_RESULTS 14 87 #define IPERF_START 15 88 #define IPERF_DONE 16 89 #define ACCESS_DENIED (-1) 90 #define SERVER_ERROR (-2) 91 92 /* Getter routines for some fields inside iperf_test. */ 93 int iperf_get_verbose( struct iperf_test* ipt ); 94 int iperf_get_control_socket( struct iperf_test* ipt ); 95 int iperf_get_test_omit( struct iperf_test* ipt ); 96 int iperf_get_test_duration( struct iperf_test* ipt ); 97 char iperf_get_test_role( struct iperf_test* ipt ); 98 int iperf_get_test_reverse( struct iperf_test* ipt ); 99 int iperf_get_test_blksize( struct iperf_test* ipt ); 100 FILE* iperf_get_test_outfile( struct iperf_test* ipt ); 101 uint64_t iperf_get_test_rate( struct iperf_test* ipt ); 102 int iperf_get_test_burst( struct iperf_test* ipt ); 103 int iperf_get_test_socket_bufsize( struct iperf_test* ipt ); 104 double iperf_get_test_reporter_interval( struct iperf_test* ipt ); 105 double iperf_get_test_stats_interval( struct iperf_test* ipt ); 106 int iperf_get_test_num_streams( struct iperf_test* ipt ); 107 int iperf_get_test_server_port( struct iperf_test* ipt ); 108 char* iperf_get_test_server_hostname( struct iperf_test* ipt ); 109 char* iperf_get_test_template( struct iperf_test* ipt ); 110 int iperf_get_test_protocol_id( struct iperf_test* ipt ); 111 int iperf_get_test_json_output( struct iperf_test* ipt ); 112 char* iperf_get_test_json_output_string ( struct iperf_test* ipt ); 113 int iperf_get_test_zerocopy( struct iperf_test* ipt ); 114 int iperf_get_test_get_server_output( struct iperf_test* ipt ); 115 char* iperf_get_test_bind_address ( struct iperf_test* ipt ); 116 int iperf_get_test_udp_counters_64bit( struct iperf_test* ipt ); 117 int iperf_get_test_one_off( struct iperf_test* ipt ); 118 119 /* Setter routines for some fields inside iperf_test. */ 120 void iperf_set_verbose( struct iperf_test* ipt, int verbose ); 121 void iperf_set_control_socket( struct iperf_test* ipt, int ctrl_sck ); 122 void iperf_set_test_omit( struct iperf_test* ipt, int omit ); 123 void iperf_set_test_duration( struct iperf_test* ipt, int duration ); 124 void iperf_set_test_reporter_interval( struct iperf_test* ipt, double reporter_interval ); 125 void iperf_set_test_stats_interval( struct iperf_test* ipt, double stats_interval ); 126 void iperf_set_test_state( struct iperf_test* ipt, signed char state ); 127 void iperf_set_test_blksize( struct iperf_test* ipt, int blksize ); 128 void iperf_set_test_rate( struct iperf_test* ipt, uint64_t rate ); 129 void iperf_set_test_burst( struct iperf_test* ipt, int burst ); 130 void iperf_set_test_server_port( struct iperf_test* ipt, int server_port ); 131 void iperf_set_test_socket_bufsize( struct iperf_test* ipt, int socket_bufsize ); 132 void iperf_set_test_num_streams( struct iperf_test* ipt, int num_streams ); 133 void iperf_set_test_role( struct iperf_test* ipt, char role ); 134 void iperf_set_test_server_hostname( struct iperf_test* ipt, char* server_hostname ); 135 void iperf_set_test_template( struct iperf_test *ipt, char *tmp_template ); 136 void iperf_set_test_reverse( struct iperf_test* ipt, int reverse ); 137 void iperf_set_test_json_output( struct iperf_test* ipt, int json_output ); 138 int iperf_has_zerocopy( void ); 139 void iperf_set_test_zerocopy( struct iperf_test* ipt, int zerocopy ); 140 void iperf_set_test_get_server_output( struct iperf_test* ipt, int get_server_output ); 141 void iperf_set_test_bind_address( struct iperf_test* ipt, char *bind_address ); 142 void iperf_set_test_udp_counters_64bit( struct iperf_test* ipt, int udp_counters_64bit ); 143 void iperf_set_test_one_off( struct iperf_test* ipt, int one_off ); 144 145 /** 146 * exchange_parameters - handles the param_Exchange part for client 147 * 148 */ 149 int iperf_exchange_parameters(struct iperf_test * test); 150 151 /** 152 * add_to_interval_list -- adds new interval to the interval_list 153 * 154 */ 155 void add_to_interval_list(struct iperf_stream_result * rp, struct iperf_interval_results *temp); 156 157 /** 158 * connect_msg -- displays connection message 159 * denoting senfer/receiver details 160 * 161 */ 162 void connect_msg(struct iperf_stream * sp); 163 164 /** 165 * iperf_stats_callback -- handles the statistic gathering 166 * 167 */ 168 void iperf_stats_callback(struct iperf_test * test); 169 170 /** 171 * iperf_reporter_callback -- handles the report printing 172 * 173 */ 174 void iperf_reporter_callback(struct iperf_test * test); 175 176 /** 177 * iperf_new_test -- return a new iperf_test with default values 178 * 179 * returns NULL on failure 180 * 181 */ 182 struct iperf_test *iperf_new_test(void); 183 184 int iperf_defaults(struct iperf_test * testp); 185 186 /** 187 * iperf_free_test -- free resources used by test, calls iperf_free_stream to 188 * free streams 189 * 190 */ 191 void iperf_free_test(struct iperf_test * testp); 192 193 /** 194 * iperf_new_stream -- return a net iperf_stream with default values 195 * 196 * returns NULL on failure 197 * 198 */ 199 struct iperf_stream *iperf_new_stream(struct iperf_test *, int); 200 201 /** 202 * iperf_add_stream -- add a stream to a test 203 * 204 */ 205 void iperf_add_stream(struct iperf_test * test, struct iperf_stream * stream); 206 207 /** 208 * iperf_init_stream -- init resources associated with test 209 * 210 */ 211 int iperf_init_stream(struct iperf_stream *, struct iperf_test *); 212 213 /** 214 * iperf_free_stream -- free resources associated with test 215 * 216 */ 217 void iperf_free_stream(struct iperf_stream * sp); 218 219 int has_tcpinfo(void); 220 int has_tcpinfo_retransmits(void); 221 void save_tcpinfo(struct iperf_stream *sp, struct iperf_interval_results *irp); 222 long get_total_retransmits(struct iperf_interval_results *irp); 223 long get_snd_cwnd(struct iperf_interval_results *irp); 224 long get_rtt(struct iperf_interval_results *irp); 225 long get_rttvar(struct iperf_interval_results *irp); 226 long get_pmtu(struct iperf_interval_results *irp); 227 void print_tcpinfo(struct iperf_test *test); 228 void build_tcpinfo_message(struct iperf_interval_results *r, char *message); 229 230 int iperf_set_send_state(struct iperf_test *test, signed char state); 231 void iperf_check_throttle(struct iperf_stream *sp, struct timeval *nowP); 232 int iperf_send(struct iperf_test *, fd_set *) /* __attribute__((hot)) */; 233 int iperf_recv(struct iperf_test *, fd_set *); 234 void iperf_catch_sigend(void (*handler)(int)); 235 void iperf_got_sigend(struct iperf_test *test) __attribute__ ((noreturn)); 236 void usage(void); 237 void usage_long(FILE * f); 238 void warning(char *); 239 int iperf_exchange_results(struct iperf_test *); 240 int iperf_init_test(struct iperf_test *); 241 int iperf_create_send_timers(struct iperf_test *); 242 int iperf_parse_arguments(struct iperf_test *, int, char **); 243 void iperf_reset_test(struct iperf_test *); 244 void iperf_reset_stats(struct iperf_test * test); 245 246 struct protocol *get_protocol(struct iperf_test *, int); 247 int set_protocol(struct iperf_test *, int); 248 249 void iperf_on_new_stream(struct iperf_stream *); 250 void iperf_on_test_start(struct iperf_test *); 251 void iperf_on_connect(struct iperf_test *); 252 void iperf_on_test_finish(struct iperf_test *); 253 254 extern jmp_buf env; 255 256 /* Client routines. */ 257 int iperf_run_client(struct iperf_test *); 258 int iperf_connect(struct iperf_test *); 259 int iperf_create_streams(struct iperf_test *); 260 int iperf_handle_message_client(struct iperf_test *); 261 int iperf_client_end(struct iperf_test *); 262 263 /* Server routines. */ 264 int iperf_run_server(struct iperf_test *); 265 int iperf_server_listen(struct iperf_test *); 266 int iperf_accept(struct iperf_test *); 267 int iperf_handle_message_server(struct iperf_test *); 268 void iperf_test_reset(struct iperf_test *); 269 int iperf_create_pidfile(struct iperf_test *); 270 int iperf_delete_pidfile(struct iperf_test *); 271 272 /* JSON output routines. */ 273 int iperf_json_start(struct iperf_test *); 274 int iperf_json_finish(struct iperf_test *); 275 276 /* CPU affinity routines */ 277 int iperf_setaffinity(struct iperf_test *, int affinity); 278 int iperf_clearaffinity(struct iperf_test *); 279 280 /* Custom printf routine. */ 281 int iperf_printf(struct iperf_test *test, const char *format, ...) __attribute__ ((format(printf,2,3))); 282 int iflush(struct iperf_test *test); 283 284 /* Error routines. */ 285 void iperf_err(struct iperf_test *test, const char *format, ...) __attribute__ ((format(printf,2,3))); 286 void iperf_errexit(struct iperf_test *test, const char *format, ...) __attribute__ ((format(printf,2,3),noreturn)); 287 char *iperf_strerror(int); 288 extern int i_errno; 289 enum { 290 IENONE = 0, // No error 291 /* Parameter errors */ 292 IESERVCLIENT = 1, // Iperf cannot be both server and client 293 IENOROLE = 2, // Iperf must either be a client (-c) or server (-s) 294 IESERVERONLY = 3, // This option is server only 295 IECLIENTONLY = 4, // This option is client only 296 IEDURATION = 5, // test duration too long. Maximum value = %dMAX_TIME 297 IENUMSTREAMS = 6, // Number of parallel streams too large. Maximum value = %dMAX_STREAMS 298 IEBLOCKSIZE = 7, // Block size too large. Maximum value = %dMAX_BLOCKSIZE 299 IEBUFSIZE = 8, // Socket buffer size too large. Maximum value = %dMAX_TCP_BUFFER 300 IEINTERVAL = 9, // Invalid report interval (min = %gMIN_INTERVAL, max = %gMAX_INTERVAL seconds) 301 IEMSS = 10, // MSS too large. Maximum value = %dMAX_MSS 302 IENOSENDFILE = 11, // This OS does not support sendfile 303 IEOMIT = 12, // Bogus value for --omit 304 IEUNIMP = 13, // Not implemented yet 305 IEFILE = 14, // -F file couldn't be opened 306 IEBURST = 15, // Invalid burst count. Maximum value = %dMAX_BURST 307 IEENDCONDITIONS = 16, // Only one test end condition (-t, -n, -k) may be specified 308 IELOGFILE = 17, // Can't open log file 309 IENOSCTP = 18, // No SCTP support available 310 IEBIND = 19, // Local port specified with no local bind option 311 IEUDPBLOCKSIZE = 20, // Block size invalid 312 IEBADTOS = 21, // Bad TOS value 313 IESETCLIENTAUTH = 22, // Bad configuration of client authentication 314 IESETSERVERAUTH = 23, // Bad configuration of server authentication 315 IEBADFORMAT = 24, // Bad format argument to -f 316 /* Test errors */ 317 IENEWTEST = 100, // Unable to create a new test (check perror) 318 IEINITTEST = 101, // Test initialization failed (check perror) 319 IELISTEN = 102, // Unable to listen for connections (check perror) 320 IECONNECT = 103, // Unable to connect to server (check herror/perror) [from netdial] 321 IEACCEPT = 104, // Unable to accept connection from client (check herror/perror) 322 IESENDCOOKIE = 105, // Unable to send cookie to server (check perror) 323 IERECVCOOKIE = 106, // Unable to receive cookie from client (check perror) 324 IECTRLWRITE = 107, // Unable to write to the control socket (check perror) 325 IECTRLREAD = 108, // Unable to read from the control socket (check perror) 326 IECTRLCLOSE = 109, // Control socket has closed unexpectedly 327 IEMESSAGE = 110, // Received an unknown message 328 IESENDMESSAGE = 111, // Unable to send control message to client/server (check perror) 329 IERECVMESSAGE = 112, // Unable to receive control message from client/server (check perror) 330 IESENDPARAMS = 113, // Unable to send parameters to server (check perror) 331 IERECVPARAMS = 114, // Unable to receive parameters from client (check perror) 332 IEPACKAGERESULTS = 115, // Unable to package results (check perror) 333 IESENDRESULTS = 116, // Unable to send results to client/server (check perror) 334 IERECVRESULTS = 117, // Unable to receive results from client/server (check perror) 335 IESELECT = 118, // Select failed (check perror) 336 IECLIENTTERM = 119, // The client has terminated 337 IESERVERTERM = 120, // The server has terminated 338 IEACCESSDENIED = 121, // The server is busy running a test. Try again later. 339 IESETNODELAY = 122, // Unable to set TCP/SCTP NODELAY (check perror) 340 IESETMSS = 123, // Unable to set TCP/SCTP MSS (check perror) 341 IESETBUF = 124, // Unable to set socket buffer size (check perror) 342 IESETTOS = 125, // Unable to set IP TOS (check perror) 343 IESETCOS = 126, // Unable to set IPv6 traffic class (check perror) 344 IESETFLOW = 127, // Unable to set IPv6 flow label 345 IEREUSEADDR = 128, // Unable to set reuse address on socket (check perror) 346 IENONBLOCKING = 129, // Unable to set socket to non-blocking (check perror) 347 IESETWINDOWSIZE = 130, // Unable to set socket window size (check perror) 348 IEPROTOCOL = 131, // Protocol does not exist 349 IEAFFINITY = 132, // Unable to set CPU affinity (check perror) 350 IEDAEMON = 133, // Unable to become a daemon process 351 IESETCONGESTION = 134, // Unable to set TCP_CONGESTION 352 IEPIDFILE = 135, // Unable to write PID file 353 IEV6ONLY = 136, // Unable to set/unset IPV6_V6ONLY (check perror) 354 IESETSCTPDISABLEFRAG = 137, // Unable to set SCTP Fragmentation (check perror) 355 IESETSCTPNSTREAM= 138, // Unable to set SCTP number of streams (check perror) 356 IESETSCTPBINDX= 139, // Unable to process sctp_bindx() parameters 357 IESETPACING= 140, // Unable to set socket pacing rate 358 IESETBUF2= 141, // Socket buffer size incorrect (written value != read value) 359 IEAUTHTEST = 142, // Test authorization failed 360 /* Stream errors */ 361 IECREATESTREAM = 200, // Unable to create a new stream (check herror/perror) 362 IEINITSTREAM = 201, // Unable to initialize stream (check herror/perror) 363 IESTREAMLISTEN = 202, // Unable to start stream listener (check perror) 364 IESTREAMCONNECT = 203, // Unable to connect stream (check herror/perror) 365 IESTREAMACCEPT = 204, // Unable to accepte stream connection (check perror) 366 IESTREAMWRITE = 205, // Unable to write to stream socket (check perror) 367 IESTREAMREAD = 206, // Unable to read from stream (check perror) 368 IESTREAMCLOSE = 207, // Stream has closed unexpectedly 369 IESTREAMID = 208, // Stream has invalid ID 370 /* Timer errors */ 371 IENEWTIMER = 300, // Unable to create new timer (check perror) 372 IEUPDATETIMER = 301, // Unable to update timer (check perror) 373 }; 374 375 376 #ifdef __cplusplus 377 } /* close extern "C" */ 378 #endif 379 380 381 #endif /* !__IPERF_API_H */ 382