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option to disable bind before connect #64

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option to disable bind before connect #64

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27 changes: 17 additions & 10 deletions src/tcpkali.c
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Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,7 @@ static struct option cli_long_options[] = {
{"server", 1, 0, 'S'},
{"sndbuf", 1, 0, CLI_SOCKET_OPT + 'S'},
{"source-ip", 1, 0, 'I'},
{"no-source-bind", 0, 0, 'B'},
{"ssl", 0, 0, SSL_OPT},
{"ssl-cert", 1, 0, SSL_OPT + 'c'},
{"ssl-key", 1, 0, SSL_OPT + 'k'},
Expand Down Expand Up @@ -219,7 +220,8 @@ main(int argc, char **argv) {
.ssl_enable = 0,
.ssl_cert = "cert.pem",
.ssl_key = "key.pem",
.write_combine = WRCOMB_ON};
.write_combine = WRCOMB_ON,
.source_bind_enable = 1};
struct rate_modulator rate_modulator = {.state = RM_UNMODULATED};
int unescape_message_data = 0;

Expand Down Expand Up @@ -724,6 +726,9 @@ main(int argc, char **argv) {
exit(EX_USAGE);
}
} break;
case 'B': /* --no-source-bind */
engine_params.source_bind_enable = 0;
break;
case 'S': { /* --server */
orch_args.enabled = 1;
orch_args.server_addr_str = strdup(optarg);
Expand Down Expand Up @@ -898,16 +903,18 @@ main(int argc, char **argv) {
conf.first_path = ""; /* "GET / HTTP/1.1" */
}

/* Figure out source IPs */
if(engine_params.source_addresses.n_addrs == 0) {
if(detect_source_ips(&engine_params.remote_addresses,
&engine_params.source_addresses)
< 0) {
exit(EX_SOFTWARE);
if(engine_params.source_bind_enable) {
/* Figure out source IPs */
if(engine_params.source_addresses.n_addrs == 0) {
if(detect_source_ips(&engine_params.remote_addresses,
&engine_params.source_addresses)
< 0) {
exit(EX_SOFTWARE);
}
} else {
fprint_addresses(stderr, "Source IP: ", "\nSource IP: ", "\n",
engine_params.source_addresses);
}
} else {
fprint_addresses(stderr, "Source IP: ", "\nSource IP: ", "\n",
engine_params.source_addresses);
}
} else {
conf.max_connections = 0;
Expand Down
1 change: 1 addition & 0 deletions src/tcpkali_engine.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ struct engine_params {
struct addresses remote_addresses;
struct addresses listen_addresses;
struct addresses source_addresses;
int source_bind_enable; /* Whether to bind before connect */
size_t requested_workers; /* Number of threads to start */
rate_spec_t channel_send_rate; /* --channel-upstream */
rate_spec_t channel_recv_rate; /* --channel-downstream */
Expand Down