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Added support for adding new protocols. Slightly modified iperf_error()

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This commit is contained in:
sethdelliott 2010-07-22 18:57:08 +00:00
parent b60a49dd37
commit 8a0b5a5d18
13 changed files with 476 additions and 269 deletions
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18
src/iperf.h
View File

@ -12,6 +12,7 @@
#include <stdint.h>
#include <sys/socket.h>
#include <netinet/tcp.h>
#include <sys/queue.h>
typedef uint64_t iperf_size_t;
@ -100,6 +101,20 @@ struct iperf_stream
void *data;
};
struct iperf_test;
struct protocol {
int id;
char *name;
int (*accept)(struct iperf_test *);
int (*listen)(struct iperf_test *);
int (*connect)(struct iperf_test *);
int (*send)(struct iperf_stream *);
int (*recv)(struct iperf_stream *);
int (*init)(struct iperf_test *);
SLIST_ENTRY(protocol) protocols;
};
struct iperf_test
{
char role; /* c' lient or 's' erver */
@ -112,6 +127,7 @@ struct iperf_test
int ctrl_sck;
int listener_tcp;
int listener_udp;
int prot_listener;
/* boolen variables for Options */
int daemon; /* -D option */
@ -149,6 +165,8 @@ struct iperf_test
struct iperf_stream *streams; /* pointer to list of struct stream */
struct iperf_settings *default_settings;
SLIST_HEAD(slisthead, protocol) protocols;
};
enum

208
src/iperf_api.c
View File

@ -14,6 +14,7 @@
#include <unistd.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
@ -344,24 +345,18 @@ iperf_recv(struct iperf_test *test)
int
iperf_init_test(struct iperf_test *test)
{
char *prot;
struct iperf_stream *sp;
struct protocol *prot;
int64_t dtargus;
if (test->protocol == Pudp) {
prot = "UDP";
dtargus = (int64_t) test->default_settings->blksize * SEC_TO_US * 8;
dtargus /= test->default_settings->rate;
assert(dtargus != 0);
for (sp = test->streams; sp; sp = sp->next) {
sp->send_timer = new_timer(dtargus / SEC_TO_US, dtargus % SEC_TO_US);
if (sp->send_timer == NULL)
return (-1);
SLIST_FOREACH(prot, &test->protocols, protocols) {
if (test->protocol == prot->id) {
if (prot->init) {
if (prot->init(test) < 0)
return (-1);
}
break;
}
} else {
prot = "TCP";
}
/* Set timers */
@ -369,10 +364,10 @@ iperf_init_test(struct iperf_test *test)
test->timer = new_timer(test->duration, 0);
if (test->timer == NULL)
return (-1);
printf(test_start_time, prot, test->num_streams, test->default_settings->blksize,
printf(test_start_time, prot->name, test->num_streams, test->default_settings->blksize,
test->duration);
} else {
printf(test_start_bytes, prot, test->num_streams, test->default_settings->blksize,
printf(test_start_bytes, prot->name, test->num_streams, test->default_settings->blksize,
test->default_settings->bytes);
}
@ -554,9 +549,12 @@ parse_parameters(struct iperf_test *test)
int
iperf_exchange_parameters(struct iperf_test * test)
{
int s;
struct protocol *prot;
/*
int s, opt, len;
struct sockaddr_in sa;
*/
if (test->role == 'c') {
if (package_parameters(test) < 0)
@ -568,64 +566,17 @@ iperf_exchange_parameters(struct iperf_test * test)
printf(" cookie: %s\n", test->default_settings->cookie);
if (test->protocol == Pudp) {
if ((test->listener_udp = netannounce(test->protocol, NULL, test->server_port)) < 0) {
i_errno = IELISTEN;
return (-1);
}
FD_SET(test->listener_udp, &test->read_set);
test->max_fd = (test->listener_udp > test->max_fd) ? test->listener_udp : test->max_fd;
} else if (test->protocol == Ptcp) {
if (test->no_delay || test->default_settings->mss) {
FD_CLR(test->listener_tcp, &test->read_set);
close(test->listener_tcp);
if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
i_errno = IELISTEN;
return (-1);
}
if (test->no_delay) {
opt = 1;
if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt)) < 0) {
i_errno = IESETNODELAY;
return (-1);
}
printf(" TCP NODELAY: on\n");
}
// XXX: Setting MSS is very buggy!
if ((opt = test->default_settings->mss)) {
if (setsockopt(s, IPPROTO_TCP, TCP_MAXSEG, &opt, sizeof(opt)) < 0) {
i_errno = IESETMSS;
return (-1);
}
printf(" TCP MSS: %d\n", opt);
}
opt = 1;
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
i_errno = IEREUSEADDR;
return (-1);
}
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = htonl(INADDR_ANY);
sa.sin_port = htons(test->server_port);
if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
close(s);
i_errno = IELISTEN;
return (-1);
}
if (listen(s, 5) < 0) {
i_errno = IELISTEN;
return (-1);
}
test->listener_tcp = s;
test->max_fd = (s > test->max_fd) ? s : test->max_fd;
FD_SET(test->listener_tcp, &test->read_set);
}
SLIST_FOREACH(prot, &test->protocols, protocols) {
if (prot->id == test->protocol)
break;
}
if ((s = prot->listen(test)) < 0)
return (-1);
FD_SET(s, &test->read_set);
test->max_fd = (s > test->max_fd) ? s : test->max_fd;
test->prot_listener = s;
// Send the control message to create streams and start the test
test->state = CREATE_STREAMS;
if (Nwrite(test->ctrl_sck, &test->state, sizeof(char), Ptcp) < 0) {
@ -916,6 +867,7 @@ iperf_defaults(struct iperf_test * testp)
testp->duration = DURATION;
testp->server_port = PORT;
testp->ctrl_sck = -1;
testp->prot_listener = -1;
testp->new_stream = iperf_new_tcp_stream;
testp->stats_callback = iperf_stats_callback;
@ -933,6 +885,39 @@ iperf_defaults(struct iperf_test * testp)
testp->default_settings->mss = 0;
testp->default_settings->bytes = 0;
memset(testp->default_settings->cookie, 0, COOKIE_SIZE);
/* Set up protocol list */
SLIST_INIT(&testp->protocols);
struct protocol *tcp, *udp;
tcp = (struct protocol *) malloc(sizeof(struct protocol));
if (!tcp)
return (-1);
memset(tcp, 0, sizeof(struct protocol));
udp = (struct protocol *) malloc(sizeof(struct protocol));
if (!udp)
return (-1);
memset(udp, 0, sizeof(struct protocol));
tcp->id = Ptcp;
tcp->name = "TCP";
tcp->accept = iperf_tcp_accept;
tcp->listen = iperf_tcp_listen;
tcp->connect = iperf_tcp_connect;
tcp->send = iperf_tcp_send;
tcp->recv = iperf_tcp_recv;
tcp->init = NULL;
SLIST_INSERT_HEAD(&testp->protocols, tcp, protocols);
udp->id = Pudp;
udp->name = "UDP";
udp->accept = iperf_udp_accept;
udp->listen = iperf_udp_listen;
udp->connect = iperf_udp_connect;
udp->send = iperf_udp_send;
udp->recv = iperf_udp_recv;
udp->init = iperf_udp_init;
SLIST_INSERT_AFTER(tcp, udp, protocols);
}
/**************************************************************************/
@ -940,70 +925,19 @@ iperf_defaults(struct iperf_test * testp)
int
iperf_create_streams(struct iperf_test *test)
{
int i, s;
struct protocol *prot;
struct iperf_stream *sp;
struct sockaddr_in sa;
struct hostent *hent;
int i, s, buf, opt;
for (i = 0; i < test->num_streams; ++i) {
if (test->protocol == Ptcp && (test->no_delay || test->default_settings->mss)) {
if ((hent = gethostbyname(test->server_hostname)) == 0) {
i_errno = IECREATESTREAM;
return (-1);
}
if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
i_errno = IECREATESTREAM;
return (-1);
}
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
memcpy(&sa.sin_addr.s_addr, hent->h_addr, sizeof(sa.sin_addr.s_addr));
sa.sin_port = htons(test->server_port);
if (test->no_delay) {
opt = 1;
if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt)) < 0) {
i_errno = IECREATESTREAM;
return (-1);
}
}
if (opt = test->default_settings->mss) {
if (setsockopt(s, IPPROTO_TCP, TCP_MAXSEG, &opt, sizeof(opt)) < 0) {
i_errno = IECREATESTREAM;
return (-1);
}
}
if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0 && errno != EINPROGRESS) {
i_errno = IESTREAMCONNECT;
return (-1);
}
} else {
s = netdial(test->protocol, test->server_hostname, test->server_port);
if (s < 0) {
i_errno = IESTREAMCONNECT;
return (-1);
}
SLIST_FOREACH(prot, &test->protocols, protocols) {
if (prot->id == test->protocol)
break;
}
if (test->protocol == Ptcp) {
if (Nwrite(s, test->default_settings->cookie, COOKIE_SIZE, Ptcp) < 0) {
i_errno = IESENDCOOKIE;
return (-1);
}
} else {
/* Write to the UDP stream to give the server this stream's credentials */
if (write(s, &buf, sizeof(i)) < 0) {
// XXX: Should this be changed to IESTREAMCONNECT?
i_errno = IESTREAMWRITE;
return (-1);
}
/* Wait until the server confirms the client UDP write */
// XXX: Should this read be TCP instead?
if (read(s, &buf, sizeof(i)) < 0) {
i_errno = IESTREAMREAD;
return (-1);
}
}
if ((s = prot->connect(test)) < 0)
return (-1);
FD_SET(s, &test->read_set);
FD_SET(s, &test->write_set);
@ -1021,7 +955,7 @@ iperf_create_streams(struct iperf_test *test)
connect_msg(sp);
}
return 0;
return (0);
}
int
@ -1112,11 +1046,21 @@ iperf_connect(struct iperf_test *test)
void
iperf_free_test(struct iperf_test * test)
{
struct protocol *prot;
free(test->default_settings);
free_timer(test->timer);
free_timer(test->stats_timer);
free_timer(test->reporter_timer);
/* Free protocol list */
while (!SLIST_EMPTY(&test->protocols)) {
prot = SLIST_FIRST(&test->protocols);
SLIST_REMOVE_HEAD(&test->protocols, protocols);
free(prot);
}
/* XXX: Why are we setting these values to NULL? */
test->streams = NULL;
test->accept = NULL;
test->stats_callback = NULL;

3
src/iperf_error.c
View File

@ -131,6 +131,9 @@ iperf_strerror(int i_errno)
case IEINITSTREAM:
snprintf(errstr, len, "unable to initialize stream");
break;
case IESTREAMLISTEN:
snprintf(errstr, len, "unable to start stream listener");
break;
case IESTREAMCONNECT:
snprintf(errstr, len, "unable to connect stream");
break;

17
src/iperf_error.h
View File

@ -56,16 +56,17 @@ enum {
/* Stream errors */
IECREATESTREAM = 36, // Unable to create a new stream (check herror/perror)
IEINITSTREAM = 37, // Unable to initialize stream (check herror/perror)
IESTREAMCONNECT = 38, // Unable to connect stream (check herror/perror)
IESTREAMACCEPT = 39, // Unable to accepte stream connection (check perror)
IESTREAMWRITE = 40, // Unable to write to stream socket (check perror)
IESTREAMREAD = 41, // Unable to read from stream (check perror)
IESTREAMCLOSE = 42, // Stream has closed unexpectedly
IESTREAMID = 43, // Stream has invalid ID
IESTREAMLISTEN = 38, // Unable to start stream listener (check perror)
IESTREAMCONNECT = 39, // Unable to connect stream (check herror/perror)
IESTREAMACCEPT = 40, // Unable to accepte stream connection (check perror)
IESTREAMWRITE = 41, // Unable to write to stream socket (check perror)
IESTREAMREAD = 42, // Unable to read from stream (check perror)
IESTREAMCLOSE = 43, // Stream has closed unexpectedly
IESTREAMID = 44, // Stream has invalid ID
/* Timer errors */
IENEWTIMER = 44, // Unable to create new timer (check perror)
IEUPDATETIMER = 45, // Unable to update timer (check perror)
IENEWTIMER = 45, // Unable to create new timer (check perror)
IEUPDATETIMER = 46, // Unable to update timer (check perror)
};
#endif

46
src/iperf_server_api.c
View File

@ -17,6 +17,7 @@
#include <unistd.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
@ -36,6 +37,7 @@
#include "iperf_udp.h"
#include "iperf_tcp.h"
#include "iperf_error.h"
#include "iperf_util.h"
#include "timer.h"
#include "net.h"
#include "units.h"
@ -322,6 +324,8 @@ iperf_run_server(struct iperf_test *test)
{
int result, s;
fd_set temp_read_set, temp_write_set;
struct iperf_stream *sp;
struct protocol *prot;
struct timeval tv;
// Open socket and listen
@ -372,26 +376,37 @@ iperf_run_server(struct iperf_test *test)
}
if (test->state == CREATE_STREAMS) {
if (test->protocol == Ptcp) {
if (FD_ISSET(test->listener_tcp, &temp_read_set)) {
if (iperf_accept_tcp_stream(test) < 0) {
return (-1);
}
FD_CLR(test->listener_tcp, &temp_read_set);
if (FD_ISSET(test->prot_listener, &temp_read_set)) {
SLIST_FOREACH(prot, &test->protocols, protocols) {
if (prot->id == test->protocol)
break;
}
} else {
if (FD_ISSET(test->listener_udp, &temp_read_set)) {
if (iperf_udp_accept(test) < 0) {
if ((s = prot->accept(test)) < 0)
return (-1);
if (!is_closed(s)) {
sp = test->new_stream(test);
if (!sp)
return (-1);
}
FD_CLR(test->listener_udp, &temp_read_set);
sp->socket = s;
if (iperf_init_stream(sp, test) < 0)
return (-1);
iperf_add_stream(test, sp);
FD_SET(s, &test->read_set);
FD_SET(s, &test->write_set);
test->max_fd = (s > test->max_fd) ? s : test->max_fd;
test->streams_accepted++;
connect_msg(sp);
}
FD_CLR(test->prot_listener, &temp_read_set);
}
if (test->streams_accepted == test->num_streams) {
if (test->protocol == Pudp) {
FD_CLR(test->listener_udp, &test->read_set);
close(test->listener_udp);
test->listener_udp = -1;
if (test->protocol != Ptcp) {
FD_CLR(test->prot_listener, &test->read_set);
close(test->prot_listener);
} else if (test->protocol == Ptcp) {
if (test->no_delay || test->default_settings->mss) {
FD_CLR(test->listener_tcp, &test->read_set);
@ -405,6 +420,7 @@ iperf_run_server(struct iperf_test *test)
FD_SET(test->listener_tcp, &test->read_set);
}
}
test->prot_listener = -1;
test->state = TEST_START;
if (Nwrite(test->ctrl_sck, &test->state, sizeof(char), Ptcp) < 0) {
i_errno = IESENDMESSAGE;

210
src/iperf_tcp.c
View File

@ -5,6 +5,7 @@
* approvals from the U.S. Dept. of Energy). All rights reserved.
*/
// XXX: Surely we do not need all these headers!
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -30,6 +31,7 @@
#include "iperf.h"
#include "iperf_api.h"
#include "iperf_error.h"
#include "iperf_server_api.h"
#include "iperf_tcp.h"
#include "timer.h"
@ -38,50 +40,36 @@
#include "iperf_util.h"
#include "locale.h"
// XXX: Does this belong here? We should probably declare this in iperf_api.c then put an extern in the header
jmp_buf env; /* to handle longjmp on signal */
/**************************************************************************/
/**
* iperf_tcp_recv -- receives the data for TCP
* and the Param/result message exchange
*returns state of packet received
/* iperf_tcp_recv
*
* receives the data for TCP
*/
int
iperf_tcp_recv(struct iperf_stream * sp)
{
int result = 0;
int size = sp->settings->blksize;
#ifdef USE_RECV
/*
* NOTE: Nwrite/Nread seems to be 10-15% faster than send/recv for
* localhost on OSX. More testing needed on other OSes to be sure.
*/
do {
result = recv(sp->socket, sp->buffer, size, MSG_WAITALL);
} while (result == -1 && errno == EINTR);
#else
result = Nread(sp->socket, sp->buffer, size, Ptcp);
#endif
if (result < 0) {
return (-1);
}
sp->result->bytes_received += result;
sp->result->bytes_received_this_interval += result;
return result;
return (result);
}
/**************************************************************************/
/**
* iperf_tcp_send -- sends the client data for TCP
* and the Param/result message exchanges
* returns: bytes sent
/* iperf_tcp_send
*
* sends the data for TCP
*/
int
iperf_tcp_send(struct iperf_stream * sp)
@ -89,11 +77,8 @@ iperf_tcp_send(struct iperf_stream * sp)
int result;
int size = sp->settings->blksize;
#ifdef USE_SEND
result = send(sp->socket, sp->buffer, size, 0);
#else
result = Nwrite(sp->socket, sp->buffer, size, Ptcp);
#endif
if (result < 0) {
return (-1);
}
@ -101,9 +86,11 @@ iperf_tcp_send(struct iperf_stream * sp)
sp->result->bytes_sent += result;
sp->result->bytes_sent_this_interval += result;
return result;
return (result);
}
// XXX: This function is now deprecated
/**************************************************************************/
struct iperf_stream *
iperf_new_tcp_stream(struct iperf_test * testp)
@ -117,51 +104,164 @@ iperf_new_tcp_stream(struct iperf_test * testp)
sp->rcv = iperf_tcp_recv; /* pointer to receive function */
sp->snd = iperf_tcp_send; /* pointer to send function */
/* XXX: not yet written... (what is this supposed to do? ) */
//sp->update_stats = iperf_tcp_update_stats;
return sp;
}
/**************************************************************************/
/** XXX: This function is not currently in use!
* iperf_tcp_accept -- accepts a new TCP connection
* on tcp_listener_socket for TCP data and param/result
* exchange messages
* returns 0 on success
/* iperf_tcp_accept
*
* accept a new TCP stream connection
*/
int
iperf_tcp_accept(struct iperf_test * test)
{
int s;
int rbuf = ACCESS_DENIED;
char cookie[COOKIE_SIZE];
socklen_t len;
struct sockaddr_in addr;
int peersock;
struct iperf_stream *sp;
len = sizeof(addr);
peersock = accept(test->listener_tcp, (struct sockaddr *) & addr, &len);
if (peersock < 0) {
// XXX: Needs to implement better error handling
printf("Error in accept(): %s\n", strerror(errno));
return -1;
if ((s = accept(test->listener_tcp, (struct sockaddr *) &addr, &len)) < 0) {
i_errno = IESTREAMCONNECT;
return (-1);
}
// XXX: This doesn't fit our API model!
sp = test->new_stream(test);
sp->socket = peersock;
iperf_init_stream(sp, test);
iperf_add_stream(test, sp);
if (Nread(s, cookie, COOKIE_SIZE, Ptcp) < 0) {
i_errno = IERECVCOOKIE;
return (-1);
}
FD_SET(peersock, &test->read_set); /* add new socket to master set */
FD_SET(peersock, &test->write_set);
test->max_fd = (test->max_fd < peersock) ? peersock : test->max_fd;
if (strcmp(test->default_settings->cookie, cookie) != 0) {
if (Nwrite(s, &rbuf, sizeof(char), Ptcp) < 0) {
i_errno = IESENDMESSAGE;
return (-1);
}
close(s);
}
connect_msg(sp); /* print connect message */
return 0;
return (s);
}
/* iperf_tcp_listen
*
* start up a listener for TCP stream connections
*/
int
iperf_tcp_listen(struct iperf_test *test)
{
int s, opt;
struct sockaddr_in sa;
s = test->listener_tcp;
if (test->no_delay || test->default_settings->mss) {
FD_CLR(s, &test->read_set);
close(s);
if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
i_errno = IESTREAMLISTEN;
return (-1);
}
if (test->no_delay) {
opt = 1;
if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt)) < 0) {
i_errno = IESETNODELAY;
return (-1);
}
printf(" TCP NODELAY: on\n");
}
// XXX: Setting MSS is very buggy!
if ((opt = test->default_settings->mss)) {
if (setsockopt(s, IPPROTO_TCP, TCP_MAXSEG, &opt, sizeof(opt)) < 0) {
i_errno = IESETMSS;
return (-1);
}
printf(" TCP MSS: %d\n", opt);
}
opt = 1;
if (setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0) {
i_errno = IEREUSEADDR;
return (-1);
}
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
sa.sin_addr.s_addr = htonl(INADDR_ANY);
sa.sin_port = htons(test->server_port);
if (bind(s, (struct sockaddr *) &sa, sizeof(sa)) < 0) {
close(s);
i_errno = IESTREAMLISTEN;
return (-1);
}
if (listen(s, 5) < 0) {
i_errno = IESTREAMLISTEN;
return (-1);
}
test->listener_tcp = s;
/*
test->max_fd = (s > test->max_fd) ? s : test->max_fd;
FD_SET(test->listener_tcp, &test->read_set);
*/
}
return (s);
}
/* iperf_tcp_connect
*
* connect to a TCP stream listener
*/
int
iperf_tcp_connect(struct iperf_test *test)
{
int s, opt;
struct sockaddr_in sa;
struct hostent *hent;
if ((hent = gethostbyname(test->server_hostname)) == 0) {
i_errno = IESTREAMCONNECT;
return (-1);
}
if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
i_errno = IESTREAMCONNECT;
return (-1);
}
memset(&sa, 0, sizeof(sa));
sa.sin_family = AF_INET;
memcpy(&sa.sin_addr.s_addr, hent->h_addr, sizeof(sa.sin_addr.s_addr));
sa.sin_port = htons(test->server_port);
/* Set TCP options */
if (test->no_delay) {
opt = 1;
if (setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt)) < 0) {
i_errno = IESETNODELAY;
return (-1);
}
}
if (opt = test->default_settings->mss) {
if (setsockopt(s, IPPROTO_TCP, TCP_MAXSEG, &opt, sizeof(opt)) < 0) {
i_errno = IESETMSS;
return (-1);
}
}
if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0 && errno != EINPROGRESS) {
i_errno = IESTREAMCONNECT;
return (-1);
}
/* Send cookie for verification */
if (Nwrite(s, test->default_settings->cookie, COOKIE_SIZE, Ptcp) < 0) {
i_errno = IESENDCOOKIE;
return (-1);
}
return (s);
}

12
src/iperf_tcp.h
View File

@ -14,7 +14,7 @@
*returns 0 on success
*
*/
int iperf_tcp_accept(struct iperf_test * test);
int iperf_tcp_accept(struct iperf_test *);
/**
* iperf_tcp_recv -- receives the data for TCP
@ -22,7 +22,7 @@ int iperf_tcp_accept(struct iperf_test * test);
*returns state of packet received
*
*/
int iperf_tcp_recv(struct iperf_stream * sp);
int iperf_tcp_recv(struct iperf_stream *);
/**
@ -31,7 +31,13 @@ int iperf_tcp_recv(struct iperf_stream * sp);
* returns: bytes sent
*
*/
int iperf_tcp_send(struct iperf_stream * sp);
int iperf_tcp_send(struct iperf_stream *);
int iperf_tcp_listen(struct iperf_test *);
int iperf_tcp_connect(struct iperf_test *);
struct iperf_stream *iperf_new_tcp_stream(struct iperf_test * testp);

135
src/iperf_udp.c
View File

@ -10,6 +10,7 @@
* NOTE: not yet finished / working
*/
// XXX: Do we really need all these headers?
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -42,15 +43,10 @@
#include "locale.h"
/**************************************************************************/
/**
* iperf_udp_recv -- receives the client data for UDP
*
*returns state of packet received
/* iperf_udp_recv
*
* receives the data for UDP
*/
int
iperf_udp_recv(struct iperf_stream *sp)
{
@ -60,17 +56,12 @@ iperf_udp_recv(struct iperf_stream *sp)
double transit = 0, d = 0;
struct timeval sent_time, arrival_time;
#ifdef USE_SEND
do {
result = recv(sp->socket, sp->buffer, size, 0);
} while (result == -1 && errno == EINTR);
#else
result = Nread(sp->socket, sp->buffer, size, Pudp);
#endif
if (result < 0) {
return (-1);
}
sp->result->bytes_received += result;
sp->result->bytes_received_this_interval += result;
@ -106,11 +97,14 @@ iperf_udp_recv(struct iperf_stream *sp)
// J = |(R1 - S1) - (R0 - S0)| [/ number of packets, for average]
sp->jitter += (d - sp->jitter) / 16.0;
return result;
return (result);
}
/**************************************************************************/
/* iperf_udp_send
*
* sends the data for UDP
*/
int
iperf_udp_send(struct iperf_stream *sp)
{
@ -139,11 +133,7 @@ iperf_udp_send(struct iperf_stream *sp)
memcpy(sp->buffer+4, &usec, sizeof(usec));
memcpy(sp->buffer+8, &pcount, sizeof(pcount));
#ifdef USE_SEND
result = send(sp->socket, sp->buffer, size, 0);
#else
result = Nwrite(sp->socket, sp->buffer, size, Pudp);
#endif
if (result < 0)
return (-1);
@ -165,10 +155,11 @@ iperf_udp_send(struct iperf_stream *sp)
return (-1);
}
return result;
return (result);
}
/**************************************************************************/
// XXX: This function is deprecated
struct iperf_stream *
iperf_new_udp_stream(struct iperf_test * testp)
{
@ -186,14 +177,10 @@ iperf_new_udp_stream(struct iperf_test * testp)
/**************************************************************************/
/**
* iperf_udp_accept -- accepts a new UDP connection
* on udp_listener_socket
*returns 0 on success
/* iperf_udp_accept
*
* accepts a new UDP connection
*/
int
iperf_udp_accept(struct iperf_test *test)
{
@ -203,10 +190,10 @@ iperf_udp_accept(struct iperf_test *test)
socklen_t len;
int sz, s;
s = test->listener_udp;
s = test->prot_listener;
len = sizeof sa_peer;
if ((sz = recvfrom(test->listener_udp, &buf, sizeof(buf), 0, (struct sockaddr *) &sa_peer, &len)) < 0) {
if ((sz = recvfrom(test->prot_listener, &buf, sizeof(buf), 0, (struct sockaddr *) &sa_peer, &len)) < 0) {
i_errno = IESTREAMACCEPT;
return (-1);
}
@ -215,7 +202,7 @@ iperf_udp_accept(struct iperf_test *test)
i_errno = IESTREAMACCEPT;
return (-1);
}
/*
sp = test->new_stream(test);
if (!sp)
return (-1);
@ -226,25 +213,97 @@ iperf_udp_accept(struct iperf_test *test)
FD_SET(s, &test->read_set);
FD_SET(s, &test->write_set);
test->max_fd = (s > test->max_fd) ? s : test->max_fd;
*/
test->listener_udp = netannounce(Pudp, NULL, test->server_port);
if (test->listener_udp < 0) {
i_errno = IELISTEN;
test->prot_listener = netannounce(Pudp, NULL, test->server_port);
if (test->prot_listener < 0) {
i_errno = IESTREAMLISTEN;
return (-1);
}
FD_SET(test->listener_udp, &test->read_set);
test->max_fd = (test->max_fd < test->listener_udp) ? test->listener_udp : test->max_fd;
FD_SET(test->prot_listener, &test->read_set);
test->max_fd = (test->max_fd < test->prot_listener) ? test->prot_listener : test->max_fd;
/* Let the client know we're ready "accept" another UDP "stream" */
if (write(sp->socket, &buf, sizeof(buf)) < 0) {
if (write(s, &buf, sizeof(buf)) < 0) {
i_errno = IESTREAMWRITE;
return (-1);
}
connect_msg(sp);
test->streams_accepted++;
return (s);
}
/* iperf_udp_listen
*
* start up a listener for UDP stream connections
*/
int
iperf_udp_listen(struct iperf_test *test)
{
int s;
if ((s = netannounce(Pudp, NULL, test->server_port)) < 0) {
i_errno = IESTREAMLISTEN;
return (-1);
}
return (s);
}
/* iperf_udp_connect
*
* connect to a TCP stream listener
*/
int
iperf_udp_connect(struct iperf_test *test)
{
int s, buf;
if ((s = netdial(Pudp, test->server_hostname, test->server_port)) < 0) {
i_errno = IESTREAMCONNECT;
return (-1);
}
/* Write to the UDP stream to give the server this stream's credentials */
if (write(s, &buf, sizeof(buf)) < 0) {
// XXX: Should this be changed to IESTREAMCONNECT?
i_errno = IESTREAMWRITE;
return (-1);
}
/* Wait until the server confirms the client UDP write */
// XXX: Should this read be TCP instead?
if (read(s, &buf, sizeof(buf)) < 0) {
i_errno = IESTREAMREAD;
return (-1);
}
return (s);
}
/* iperf_udp_init
*
* initializer for UDP streams in TEST_START
*/
int
iperf_udp_init(struct iperf_test *test)
{
int64_t dtargus;
struct iperf_stream *sp;
/* Calculate the send delay needed to hit target bandwidth (-b) */
dtargus = (int64_t) test->default_settings->blksize * SEC_TO_US * 8;
dtargus /= test->default_settings->rate;
assert(dtargus != 0);
for (sp = test->streams; sp; sp = sp->next) {
sp->send_timer = new_timer(dtargus / SEC_TO_US, dtargus % SEC_TO_US);
if (sp->send_timer == NULL)
return (-1);
}
return (0);
}

19
src/iperf_udp.h
View File

@ -5,8 +5,8 @@
approvals from the U.S. Dept. of Energy). All rights reserved.
*/
#ifndef IPERF_UDP_H
#define IPERF_UDP_H
#ifndef __IPERF_UDP_H
#define __IPERF_UDP_H
/**
@ -15,7 +15,7 @@
*returns 0 on success
*
*/
int iperf_udp_accept(struct iperf_test * test);
int iperf_udp_accept(struct iperf_test *);
/**
@ -24,7 +24,7 @@ int iperf_udp_accept(struct iperf_test * test);
*returns state of packet received
*
*/
int iperf_udp_recv(struct iperf_stream * sp);
int iperf_udp_recv(struct iperf_stream *);
/**
* iperf_udp_send -- sends the client data for UDP
@ -32,7 +32,7 @@ int iperf_udp_recv(struct iperf_stream * sp);
* returns: bytes sent
*
*/
int iperf_udp_send(struct iperf_stream * sp);
int iperf_udp_send(struct iperf_stream *);
/**
@ -41,7 +41,14 @@ int iperf_udp_send(struct iperf_stream * sp);
*returns 0 on success
*
*/
int iperf_udp_accept(struct iperf_test * test);
int iperf_udp_accept(struct iperf_test *);
int iperf_udp_listen(struct iperf_test *);
int iperf_udp_connect(struct iperf_test *);
int iperf_udp_init(struct iperf_test *);
struct iperf_stream *iperf_new_udp_stream(struct iperf_test * testp);

63
src/iperf_util.c
View File

@ -1,8 +1,24 @@
#include "config.h"
/* iperf_util.c
*
* Iperf utility functions
*
*/
#include <stdio.h>
#include <stdlib.h>
#include<string.h>
#include <string.h>
#include <sys/select.h>
#include <errno.h>
#include "config.h"
/* XXX: this code is not portable: not all versions of linux install libuuidgen
* by default
*
* if not installed, may need to do something like this:
* yum install libuuid-devel
* apt-get install uuid-dev
*/
#if defined(HAVE_UUID_H)
#warning DOING SOMETHING
@ -14,14 +30,15 @@
#endif
/* XXX: this code is not portable: not all versions of linux install libuuidgen
* by default
*
* if not installed, may need to do something like this:
* yum install libuuid-devel
* apt-get install uuid-dev
*/
/* get_uuid
*
* Generate and return a UUID string
*
* Iperf uses this function to create test "cookies" which
* server as unique test identifiers. These cookies are also
* used for the authentication of stream connections.
*/
void
get_uuid(char *temp)
@ -45,3 +62,31 @@ get_uuid(char *temp)
// Otherwise use rpc_string_free (?)
free(s);
}
/* is_closed
*
* Test if the file descriptor fd is closed.
*
* Iperf uses this function to test whether a TCP stream socket
* is closed, because accepting and denying an invalid connection
* in iperf_tcp_accept is not considered an error.
*/
int
is_closed(int fd)
{
struct timeval tv;
fd_set readset;
FD_ZERO(&readset);
FD_SET(fd, &readset);
tv.tv_sec = 0;
tv.tv_usec = 0;
if (select(fd+1, &readset, NULL, NULL, &tv) < 0) {
if (errno == EBADF)
return (1);
}
return (0);
}

9
src/iperf_util.h
View File

@ -1,3 +1,8 @@
#ifndef __IPERF_UTIL_H
#define __IPERF_UTIL_H
void
get_uuid(char *);
void get_uuid(char *);
int is_closed(int);
#endif

1
src/main.c
View File

@ -13,6 +13,7 @@
#include <signal.h>
#include <unistd.h>
#include <stdint.h>
#include <sys/queue.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>

4
src/net.c
View File

@ -45,13 +45,15 @@ netdial(int proto, char *client, int port)
if (connect(s, (struct sockaddr *) & sa, sizeof sa) < 0 && errno != EINPROGRESS) {
return (-1);
}
/* XXX: Consider deleting
sn = sizeof sa;
// XXX: Is there a reason to call getpeername() if none of the return values are used?
if (getpeername(s, (struct sockaddr *) & sa, &sn) < 0) {
return (-1);
}
*/
return (s);
}