/*
* iperf, Copyright (c) 2014-2022, The Regents of the University of
* California, through Lawrence Berkeley National Laboratory (subject
* to receipt of any required approvals from the U.S. Dept. of
* Energy). All rights reserved.
*
* If you have questions about your rights to use or distribute this
* software, please contact Berkeley Lab's Technology Transfer
* Department at TTD@lbl.gov.
*
* NOTICE. This software is owned by the U.S. Department of Energy.
* As such, the U.S. Government has been granted for itself and others
* acting on its behalf a paid-up, nonexclusive, irrevocable,
* worldwide license in the Software to reproduce, prepare derivative
* works, and perform publicly and display publicly. Beginning five
* (5) years after the date permission to assert copyright is obtained
* from the U.S. Department of Energy, and subject to any subsequent
* five (5) year renewals, the U.S. Government is granted for itself
* and others acting on its behalf a paid-up, nonexclusive,
* irrevocable, worldwide license in the Software to reproduce,
* prepare derivative works, distribute copies to the public, perform
* publicly and display publicly, and to permit others to do so.
*
* This code is distributed under a BSD style license, see the LICENSE
* file for complete information.
*/
#ifndef __IPERF_API_H
#define __IPERF_API_H
#include <sys/socket.h>
#include <sys/time.h>
#include <setjmp.h>
#include <stdio.h>
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef __cplusplus
extern "C" { /* open extern "C" */
#endif
struct iperf_test;
struct iperf_stream_result;
struct iperf_interval_results;
struct iperf_stream;
struct iperf_time;
#if !defined(__IPERF_H)
typedef uint64_t iperf_size_t;
#endif // __IPERF_H
/* default settings */
#define Ptcp SOCK_STREAM
#define Pudp SOCK_DGRAM
#define Psctp 12
#define DEFAULT_UDP_BLKSIZE 1460 /* default is dynamically set, else this */
#define DEFAULT_TCP_BLKSIZE (128 * 1024) /* default read/write block size */
#define DEFAULT_SCTP_BLKSIZE (64 * 1024)
#define DEFAULT_PACING_TIMER 1000
#define DEFAULT_NO_MSG_RCVD_TIMEOUT 120000
#define MIN_NO_MSG_RCVD_TIMEOUT 100
#define WARN_STR_LEN 128
/* short option equivalents, used to support options that only have long form */
#define OPT_SCTP 1
#define OPT_LOGFILE 2
#define OPT_GET_SERVER_OUTPUT 3
#define OPT_UDP_COUNTERS_64BIT 4
#define OPT_CLIENT_PORT 5
#define OPT_NUMSTREAMS 6
#define OPT_FORCEFLUSH 7
#define OPT_NO_FQ_SOCKET_PACING 9 /* UNUSED */
#define OPT_FQ_RATE 10
#define OPT_DSCP 11
#define OPT_CLIENT_USERNAME 12
#define OPT_CLIENT_RSA_PUBLIC_KEY 13
#define OPT_SERVER_RSA_PRIVATE_KEY 14
#define OPT_SERVER_AUTHORIZED_USERS 15
#define OPT_PACING_TIMER 16
#define OPT_CONNECT_TIMEOUT 17
#define OPT_REPEATING_PAYLOAD 18
#define OPT_EXTRA_DATA 19
#define OPT_BIDIRECTIONAL 20
#define OPT_SERVER_BITRATE_LIMIT 21
#define OPT_TIMESTAMPS 22
#define OPT_SERVER_SKEW_THRESHOLD 23
#define OPT_BIND_DEV 24
#define OPT_IDLE_TIMEOUT 25
#define OPT_DONT_FRAGMENT 26
#define OPT_RCV_TIMEOUT 27
#define OPT_SND_TIMEOUT 28
/* states */
#define TEST_START 1
#define TEST_RUNNING 2
#define RESULT_REQUEST 3 /* not used */
#define TEST_END 4
#define STREAM_BEGIN 5 /* not used */
#define STREAM_RUNNING 6 /* not used */
#define STREAM_END 7 /* not used */
#define ALL_STREAMS_END 8 /* not used */
#define PARAM_EXCHANGE 9
#define CREATE_STREAMS 10
#define SERVER_TERMINATE 11
#define CLIENT_TERMINATE 12
#define EXCHANGE_RESULTS 13
#define DISPLAY_RESULTS 14
#define IPERF_START 15
#define IPERF_DONE 16
#define ACCESS_DENIED (-1)
#define SERVER_ERROR (-2)
/* Getter routines for some fields inside iperf_test. */
int iperf_get_verbose( struct iperf_test* ipt );
int iperf_get_control_socket( struct iperf_test* ipt );
int iperf_get_test_omit( struct iperf_test* ipt );
int iperf_get_test_duration( struct iperf_test* ipt );
char iperf_get_test_role( struct iperf_test* ipt );
int iperf_get_test_reverse( struct iperf_test* ipt );
int iperf_get_test_bidirectional( struct iperf_test* ipt );
int iperf_get_test_blksize( struct iperf_test* ipt );
FILE* iperf_get_test_outfile( struct iperf_test* ipt );
uint64_t iperf_get_test_rate( struct iperf_test* ipt );
int iperf_get_test_pacing_timer( struct iperf_test* ipt );
uint64_t iperf_get_test_bytes( struct iperf_test* ipt );
uint64_t iperf_get_test_blocks( struct iperf_test* ipt );
int iperf_get_test_burst( struct iperf_test* ipt );
int iperf_get_test_socket_bufsize( struct iperf_test* ipt );
double iperf_get_test_reporter_interval( struct iperf_test* ipt );
double iperf_get_test_stats_interval( struct iperf_test* ipt );
int iperf_get_test_num_streams( struct iperf_test* ipt );
int iperf_get_test_repeating_payload( struct iperf_test* ipt );
int iperf_get_test_timestamps( struct iperf_test* ipt );
const char* iperf_get_test_timestamp_format( struct iperf_test* ipt );
int iperf_get_test_bind_port( struct iperf_test* ipt );
int iperf_get_test_server_port( struct iperf_test* ipt );
char* iperf_get_test_server_hostname( struct iperf_test* ipt );
char* iperf_get_test_template( struct iperf_test* ipt );
int iperf_get_test_protocol_id( struct iperf_test* ipt );
int iperf_get_test_json_output( struct iperf_test* ipt );
char* iperf_get_test_json_output_string ( struct iperf_test* ipt );
int iperf_get_test_zerocopy( struct iperf_test* ipt );
int iperf_get_test_get_server_output( struct iperf_test* ipt );
char iperf_get_test_unit_format(struct iperf_test *ipt);
char* iperf_get_test_bind_address ( struct iperf_test* ipt );
char* iperf_get_test_bind_dev(struct iperf_test *ipt);
int iperf_get_test_udp_counters_64bit( struct iperf_test* ipt );
int iperf_get_test_one_off( struct iperf_test* ipt );
int iperf_get_test_tos( struct iperf_test* ipt );
char* iperf_get_extra_data( struct iperf_test* ipt );
char* iperf_get_iperf_version(void);
int iperf_get_test_no_delay( struct iperf_test* ipt );
int iperf_get_test_connect_timeout( struct iperf_test* ipt );
int iperf_get_dont_fragment( struct iperf_test* ipt );
char* iperf_get_test_congestion_control(struct iperf_test* ipt);
int iperf_get_test_mss(struct iperf_test* ipt);
int iperf_get_mapped_v4(struct iperf_test* ipt);
/* Setter routines for some fields inside iperf_test. */
void iperf_set_verbose( struct iperf_test* ipt, int verbose );
void iperf_set_control_socket( struct iperf_test* ipt, int ctrl_sck );
void iperf_set_test_omit( struct iperf_test* ipt, int omit );
void iperf_set_test_duration( struct iperf_test* ipt, int duration );
void iperf_set_test_reporter_interval( struct iperf_test* ipt, double reporter_interval );
void iperf_set_test_stats_interval( struct iperf_test* ipt, double stats_interval );
void iperf_set_test_state( struct iperf_test* ipt, signed char state );
void iperf_set_test_blksize( struct iperf_test* ipt, int blksize );
void iperf_set_test_logfile( struct iperf_test* ipt, const char *logfile );
void iperf_set_test_rate( struct iperf_test* ipt, uint64_t rate );
void iperf_set_test_pacing_timer( struct iperf_test* ipt, int pacing_timer );
void iperf_set_test_bytes( struct iperf_test* ipt, uint64_t bytes );
void iperf_set_test_blocks( struct iperf_test* ipt, uint64_t blocks );
void iperf_set_test_burst( struct iperf_test* ipt, int burst );
void iperf_set_test_bind_port( struct iperf_test* ipt, int bind_port );
void iperf_set_test_server_port( struct iperf_test* ipt, int server_port );
void iperf_set_test_socket_bufsize( struct iperf_test* ipt, int socket_bufsize );
void iperf_set_test_num_streams( struct iperf_test* ipt, int num_streams );
void iperf_set_test_repeating_payload( struct iperf_test* ipt, int repeating_payload );
void iperf_set_test_timestamps( struct iperf_test* ipt, int timestamps );
void iperf_set_test_timestamp_format( struct iperf_test*, const char *tf );
void iperf_set_test_role( struct iperf_test* ipt, char role );
void iperf_set_test_server_hostname( struct iperf_test* ipt, const char* server_hostname );
void iperf_set_test_template( struct iperf_test *ipt, const char *tmp_template );
void iperf_set_test_reverse( struct iperf_test* ipt, int reverse );
void iperf_set_test_json_output( struct iperf_test* ipt, int json_output );
int iperf_has_zerocopy( void );
void iperf_set_test_zerocopy( struct iperf_test* ipt, int zerocopy );
void iperf_set_test_get_server_output( struct iperf_test* ipt, int get_server_output );
void iperf_set_test_unit_format(struct iperf_test *ipt, char unit_format);
void iperf_set_test_bind_address( struct iperf_test* ipt, const char *bind_address );
void iperf_set_test_bind_dev(struct iperf_test *ipt, const char *bnd_dev);
void iperf_set_test_udp_counters_64bit( struct iperf_test* ipt, int udp_counters_64bit );
void iperf_set_test_one_off( struct iperf_test* ipt, int one_off );
void iperf_set_test_tos( struct iperf_test* ipt, int tos );
void iperf_set_test_extra_data( struct iperf_test* ipt, const char *dat );
void iperf_set_test_bidirectional( struct iperf_test* ipt, int bidirectional);
void iperf_set_test_no_delay( struct iperf_test* ipt, int no_delay);
void iperf_set_dont_fragment( struct iperf_test* ipt, int dont_fragment );
void iperf_set_test_congestion_control(struct iperf_test* ipt, char* cc);
void iperf_set_test_mss(struct iperf_test* ipt, int mss);
void iperf_set_mapped_v4(struct iperf_test* ipt, const int val);
void iperf_set_on_new_stream_callback(struct iperf_test* ipt, void (*callback)());
void iperf_set_on_test_start_callback(struct iperf_test* ipt, void (*callback)());
void iperf_set_on_test_connect_callback(struct iperf_test* ipt, void (*callback)());
void iperf_set_on_test_finish_callback(struct iperf_test* ipt, void (*callback)());
#if defined(HAVE_SSL)
void iperf_set_test_client_username(struct iperf_test *ipt, const char *client_username);
void iperf_set_test_client_password(struct iperf_test *ipt, const char *client_password);
void iperf_set_test_client_rsa_pubkey(struct iperf_test *ipt, const char *client_rsa_pubkey_base64);
void iperf_set_test_server_authorized_users(struct iperf_test *ipt, const char *server_authorized_users);
void iperf_set_test_server_skew_threshold(struct iperf_test *ipt, int server_skew_threshold);
void iperf_set_test_server_rsa_privkey(struct iperf_test *ipt, const char *server_rsa_privkey_base64);
#endif // HAVE_SSL
void iperf_set_test_connect_timeout(struct iperf_test *ipt, int ct);
/**
* exchange_parameters - handles the param_Exchange part for client
*
*/
int iperf_exchange_parameters(struct iperf_test * test);
/**
* add_to_interval_list -- adds new interval to the interval_list
*
*/
void add_to_interval_list(struct iperf_stream_result * rp, struct iperf_interval_results *temp);
/**
* connect_msg -- displays connection message
* denoting senfer/receiver details
*
*/
void connect_msg(struct iperf_stream * sp);
/**
* iperf_stats_callback -- handles the statistic gathering
*
*/
void iperf_stats_callback(struct iperf_test * test);
/**
* iperf_reporter_callback -- handles the report printing
*
*/
void iperf_reporter_callback(struct iperf_test * test);
/**
* iperf_new_test -- return a new iperf_test with default values
*
* returns NULL on failure
*
*/
struct iperf_test *iperf_new_test(void);
int iperf_defaults(struct iperf_test * testp);
/**
* iperf_free_test -- free resources used by test, calls iperf_free_stream to
* free streams
*
*/
void iperf_free_test(struct iperf_test * testp);
/**
* iperf_new_stream -- return a net iperf_stream with default values
*
* returns NULL on failure
*
*/
struct iperf_stream *iperf_new_stream(struct iperf_test *, int, int);
/**
* iperf_add_stream -- add a stream to a test
*
*/
void iperf_add_stream(struct iperf_test * test, struct iperf_stream * stream);
/**
* iperf_init_stream -- init resources associated with test
*
*/
int iperf_init_stream(struct iperf_stream *, struct iperf_test *);
/**
* iperf_free_stream -- free resources associated with test
*
*/
void iperf_free_stream(struct iperf_stream * sp);
/**
* iperf_common_sockopts -- init stream socket with common socket options
*
*/
int iperf_common_sockopts(struct iperf_test *, int s);
int has_tcpinfo(void);
int has_tcpinfo_retransmits(void);
void save_tcpinfo(struct iperf_stream *sp, struct iperf_interval_results *irp);
long get_total_retransmits(struct iperf_interval_results *irp);
long get_snd_cwnd(struct iperf_interval_results *irp);
long get_snd_wnd(struct iperf_interval_results *irp);
long get_rtt(struct iperf_interval_results *irp);
long get_rttvar(struct iperf_interval_results *irp);
long get_pmtu(struct iperf_interval_results *irp);
void print_tcpinfo(struct iperf_test *test);
void build_tcpinfo_message(struct iperf_interval_results *r, char *message);
int iperf_set_send_state(struct iperf_test *test, signed char state);
void iperf_check_throttle(struct iperf_stream *sp, struct iperf_time *nowP);
int iperf_send(struct iperf_test *, fd_set *) /* __attribute__((hot)) */;
int iperf_recv(struct iperf_test *, fd_set *);
void iperf_catch_sigend(void (*handler)(int));
void iperf_got_sigend(struct iperf_test *test) __attribute__ ((noreturn));
void usage(void);
void usage_long(FILE * f);
void warning(const char *);
int iperf_exchange_results(struct iperf_test *);
int iperf_init_test(struct iperf_test *);
int iperf_create_send_timers(struct iperf_test *);
int iperf_parse_arguments(struct iperf_test *, int, char **);
int iperf_open_logfile(struct iperf_test *);
void iperf_close_logfile(struct iperf_test *);
void iperf_reset_test(struct iperf_test *);
void iperf_reset_stats(struct iperf_test * test);
struct protocol *get_protocol(struct iperf_test *, int);
int set_protocol(struct iperf_test *, int);
void iperf_on_new_stream(struct iperf_stream *);
void iperf_on_test_start(struct iperf_test *);
void iperf_on_connect(struct iperf_test *);
void iperf_on_test_finish(struct iperf_test *);
extern jmp_buf env;
/* Client routines. */
int iperf_run_client(struct iperf_test *);
int iperf_connect(struct iperf_test *);
int iperf_create_streams(struct iperf_test *, int sender);
int iperf_handle_message_client(struct iperf_test *);
int iperf_client_end(struct iperf_test *);
/* Server routines. */
int iperf_run_server(struct iperf_test *);
int iperf_server_listen(struct iperf_test *);
int iperf_accept(struct iperf_test *);
int iperf_handle_message_server(struct iperf_test *);
int iperf_create_pidfile(struct iperf_test *);
int iperf_delete_pidfile(struct iperf_test *);
void iperf_check_total_rate(struct iperf_test *, iperf_size_t);
/* JSON output routines. */
int iperf_json_start(struct iperf_test *);
int iperf_json_finish(struct iperf_test *);
/* CPU affinity routines */
int iperf_setaffinity(struct iperf_test *, int affinity);
int iperf_clearaffinity(struct iperf_test *);
/* Custom printf routine. */
int iperf_printf(struct iperf_test *test, const char *format, ...) __attribute__ ((format(printf,2,3)));
int iflush(struct iperf_test *test);
/* Error routines. */
void iperf_err(struct iperf_test *test, const char *format, ...) __attribute__ ((format(printf,2,3)));
void iperf_errexit(struct iperf_test *test, const char *format, ...) __attribute__ ((format(printf,2,3),noreturn));
char *iperf_strerror(int);
extern int i_errno;
enum {
IENONE = 0, // No error
/* Parameter errors */
IESERVCLIENT = 1, // Iperf cannot be both server and client
IENOROLE = 2, // Iperf must either be a client (-c) or server (-s)
IESERVERONLY = 3, // This option is server only
IECLIENTONLY = 4, // This option is client only
IEDURATION = 5, // test duration too long. Maximum value = %dMAX_TIME
IENUMSTREAMS = 6, // Number of parallel streams too large. Maximum value = %dMAX_STREAMS
IEBLOCKSIZE = 7, // Block size too large. Maximum value = %dMAX_BLOCKSIZE
IEBUFSIZE = 8, // Socket buffer size too large. Maximum value = %dMAX_TCP_BUFFER
IEINTERVAL = 9, // Invalid report interval (min = %gMIN_INTERVAL, max = %gMAX_INTERVAL seconds)
IEMSS = 10, // MSS too large. Maximum value = %dMAX_MSS
IENOSENDFILE = 11, // This OS does not support sendfile
IEOMIT = 12, // Bogus value for --omit
IEUNIMP = 13, // Not implemented yet
IEFILE = 14, // -F file couldn't be opened
IEBURST = 15, // Invalid burst count. Maximum value = %dMAX_BURST
IEENDCONDITIONS = 16, // Only one test end condition (-t, -n, -k) may be specified
IELOGFILE = 17, // Can't open log file
IENOSCTP = 18, // No SCTP support available
IEBIND = 19, // UNUSED: Local port specified with no local bind option
IEUDPBLOCKSIZE = 20, // Block size invalid
IEBADTOS = 21, // Bad TOS value
IESETCLIENTAUTH = 22, // Bad configuration of client authentication
IESETSERVERAUTH = 23, // Bad configuration of server authentication
IEBADFORMAT = 24, // Bad format argument to -f
IEREVERSEBIDIR = 25, // Iperf cannot be both reverse and bidirectional
IEBADPORT = 26, // Bad port number
IETOTALRATE = 27, // Total required bandwidth is larger than server's limit
IETOTALINTERVAL = 28, // Invalid time interval for calculating average data rate
IESKEWTHRESHOLD = 29, // Invalid value specified as skew threshold
IEIDLETIMEOUT = 30, // Invalid value specified as idle state timeout
IERCVTIMEOUT = 31, // Illegal message receive timeout
IERVRSONLYRCVTIMEOUT = 32, // Client receive timeout is valid only in reverse mode
IESNDTIMEOUT = 33, // Illegal message send timeout
IEUDPFILETRANSFER = 34, // Cannot transfer file using UDP
/* Test errors */
IENEWTEST = 100, // Unable to create a new test (check perror)
IEINITTEST = 101, // Test initialization failed (check perror)
IELISTEN = 102, // Unable to listen for connections (check perror)
IECONNECT = 103, // Unable to connect to server (check herror/perror) [from netdial]
IEACCEPT = 104, // Unable to accept connection from client (check herror/perror)
IESENDCOOKIE = 105, // Unable to send cookie to server (check perror)
IERECVCOOKIE = 106, // Unable to receive cookie from client (check perror)
IECTRLWRITE = 107, // Unable to write to the control socket (check perror)
IECTRLREAD = 108, // Unable to read from the control socket (check perror)
IECTRLCLOSE = 109, // Control socket has closed unexpectedly
IEMESSAGE = 110, // Received an unknown message
IESENDMESSAGE = 111, // Unable to send control message to client/server (check perror)
IERECVMESSAGE = 112, // Unable to receive control message from client/server (check perror)
IESENDPARAMS = 113, // Unable to send parameters to server (check perror)
IERECVPARAMS = 114, // Unable to receive parameters from client (check perror)
IEPACKAGERESULTS = 115, // Unable to package results (check perror)
IESENDRESULTS = 116, // Unable to send results to client/server (check perror)
IERECVRESULTS = 117, // Unable to receive results from client/server (check perror)
IESELECT = 118, // Select failed (check perror)
IECLIENTTERM = 119, // The client has terminated
IESERVERTERM = 120, // The server has terminated
IEACCESSDENIED = 121, // The server is busy running a test. Try again later.
IESETNODELAY = 122, // Unable to set TCP/SCTP NODELAY (check perror)
IESETMSS = 123, // Unable to set TCP/SCTP MSS (check perror)
IESETBUF = 124, // Unable to set socket buffer size (check perror)
IESETTOS = 125, // Unable to set IP TOS (check perror)
IESETCOS = 126, // Unable to set IPv6 traffic class (check perror)
IESETFLOW = 127, // Unable to set IPv6 flow label
IEREUSEADDR = 128, // Unable to set reuse address on socket (check perror)
IENONBLOCKING = 129, // Unable to set socket to non-blocking (check perror)
IESETWINDOWSIZE = 130, // Unable to set socket window size (check perror)
IEPROTOCOL = 131, // Protocol does not exist
IEAFFINITY = 132, // Unable to set CPU affinity (check perror)
IEDAEMON = 133, // Unable to become a daemon process
IESETCONGESTION = 134, // Unable to set TCP_CONGESTION
IEPIDFILE = 135, // Unable to write PID file
IEV6ONLY = 136, // Unable to set/unset IPV6_V6ONLY (check perror)
IESETSCTPDISABLEFRAG = 137, // Unable to set SCTP Fragmentation (check perror)
IESETSCTPNSTREAM= 138, // Unable to set SCTP number of streams (check perror)
IESETSCTPBINDX= 139, // Unable to process sctp_bindx() parameters
IESETPACING= 140, // Unable to set socket pacing rate
IESETBUF2= 141, // Socket buffer size incorrect (written value != read value)
IEAUTHTEST = 142, // Test authorization failed
IEBINDDEV = 143, // Unable to bind-to-device (check perror, maybe permissions?)
IENOMSG = 144, // No message was received for NO_MSG_RCVD_TIMEOUT time period
IESETDONTFRAGMENT = 145, // Unable to set IP Do-Not-Fragment
IEBINDDEVNOSUPPORT = 146, // `ip%%dev` is not supported as system does not support bind to device
IEHOSTDEV = 147, // host device name (ip%%<dev>) is supported (and required) only for IPv6 link-local address
IESETUSERTIMEOUT = 148, // Unable to set TCP USER_TIMEOUT (check perror)
/* Stream errors */
IECREATESTREAM = 200, // Unable to create a new stream (check herror/perror)
IEINITSTREAM = 201, // Unable to initialize stream (check herror/perror)
IESTREAMLISTEN = 202, // Unable to start stream listener (check perror)
IESTREAMCONNECT = 203, // Unable to connect stream (check herror/perror)
IESTREAMACCEPT = 204, // Unable to accepte stream connection (check perror)
IESTREAMWRITE = 205, // Unable to write to stream socket (check perror)
IESTREAMREAD = 206, // Unable to read from stream (check perror)
IESTREAMCLOSE = 207, // Stream has closed unexpectedly
IESTREAMID = 208, // Stream has invalid ID
/* Timer errors */
IENEWTIMER = 300, // Unable to create new timer (check perror)
IEUPDATETIMER = 301, // Unable to update timer (check perror)
};
#ifdef __cplusplus
} /* close extern "C" */
#endif
#endif /* !__IPERF_API_H */
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