/* * iperf, Copyright (c) 2014-2020, 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. */ #include #include #include #include #include #include #include "iperf.h" #include "iperf_api.h" int gerror; /* Do a printf to stderr. */ void iperf_err(struct iperf_test *test, const char *format, ...) { va_list argp; char str[1000]; va_start(argp, format); vsnprintf(str, sizeof(str), format, argp); if (test != NULL && test->json_output && test->json_top != NULL) cJSON_AddStringToObject(test->json_top, "error", str); else if (test && test->outfile && test->outfile != stdout) { fprintf(test->outfile, "iperf3: %s\n", str); } else { fprintf(stderr, "iperf3: %s\n", str); } va_end(argp); } /* Do a printf to stderr or log file as appropriate, then exit. */ void iperf_errexit(struct iperf_test *test, const char *format, ...) { va_list argp; char str[1000]; va_start(argp, format); vsnprintf(str, sizeof(str), format, argp); if (test != NULL && test->json_output && test->json_top != NULL) { cJSON_AddStringToObject(test->json_top, "error", str); iperf_json_finish(test); } else if (test && test->outfile && test->outfile != stdout) { fprintf(test->outfile, "iperf3: %s\n", str); } else { fprintf(stderr, "iperf3: %s\n", str); } va_end(argp); if (test) iperf_delete_pidfile(test); exit(1); } int i_errno; char * iperf_strerror(int int_errno) { static char errstr[256]; int len, perr, herr; perr = herr = 0; len = sizeof(errstr); memset(errstr, 0, len); switch (int_errno) { case IENONE: snprintf(errstr, len, "no error"); break; case IESERVCLIENT: snprintf(errstr, len, "cannot be both server and client"); break; case IENOROLE: snprintf(errstr, len, "must either be a client (-c) or server (-s)"); break; case IESERVERONLY: snprintf(errstr, len, "some option you are trying to set is server only"); break; case IECLIENTONLY: snprintf(errstr, len, "some option you are trying to set is client only"); break; case IEDURATION: snprintf(errstr, len, "test duration too long (maximum = %d seconds)", MAX_TIME); break; case IENUMSTREAMS: snprintf(errstr, len, "number of parallel streams too large (maximum = %d)", MAX_STREAMS); break; case IEBLOCKSIZE: snprintf(errstr, len, "block size too large (maximum = %d bytes)", MAX_BLOCKSIZE); break; case IEBUFSIZE: snprintf(errstr, len, "socket buffer size too large (maximum = %d bytes)", MAX_TCP_BUFFER); break; case IEINTERVAL: snprintf(errstr, len, "invalid report interval (min = %g, max = %g seconds)", MIN_INTERVAL, MAX_INTERVAL); break; case IEBIND: /* UNUSED */ snprintf(errstr, len, "--bind must be specified to use --cport"); break; case IEUDPBLOCKSIZE: snprintf(errstr, len, "block size invalid (minimum = %d bytes, maximum = %d bytes)", MIN_UDP_BLOCKSIZE, MAX_UDP_BLOCKSIZE); break; case IEBADTOS: snprintf(errstr, len, "bad TOS value (must be between 0 and 255 inclusive)"); break; case IESETCLIENTAUTH: snprintf(errstr, len, "you must specify a username, password, and path to a valid RSA public key"); break; case IESETSERVERAUTH: snprintf(errstr, len, "you must specify a path to a valid RSA private key and a user credential file"); break; case IEBADFORMAT: snprintf(errstr, len, "bad format specifier (valid formats are in the set [kmgtKMGT])"); break; case IEBADPORT: snprintf(errstr, len, "port number must be between 1 and 65535 inclusive"); break; case IEMSS: snprintf(errstr, len, "TCP MSS too large (maximum = %d bytes)", MAX_MSS); break; case IENOSENDFILE: snprintf(errstr, len, "this OS does not support sendfile"); break; case IEOMIT: snprintf(errstr, len, "bogus value for --omit"); break; case IEUNIMP: snprintf(errstr, len, "an option you are trying to set is not implemented yet"); break; case IEFILE: snprintf(errstr, len, "unable to open -F file"); perr = 1; break; case IEBURST: snprintf(errstr, len, "invalid burst count (maximum = %d)", MAX_BURST); break; case IEENDCONDITIONS: snprintf(errstr, len, "only one test end condition (-t, -n, -k) may be specified"); break; case IELOGFILE: snprintf(errstr, len, "unable to open log file"); perr = 1; break; case IENOSCTP: snprintf(errstr, len, "no SCTP support available"); break; case IENEWTEST: snprintf(errstr, len, "unable to create a new test"); perr = 1; break; case IEINITTEST: snprintf(errstr, len, "test initialization failed"); perr = 1; break; case IEAUTHTEST: snprintf(errstr, len, "test authorization failed"); break; case IELISTEN: snprintf(errstr, len, "unable to start listener for connections"); herr = 1; perr = 1; break; case IECONNECT: snprintf(errstr, len, "unable to connect to server"); perr = 1; herr = 1; break; case IEACCEPT: snprintf(errstr, len, "unable to accept connection from client"); herr = 1; perr = 1; break; case IESENDCOOKIE: snprintf(errstr, len, "unable to send cookie to server"); perr = 1; break; case IERECVCOOKIE: snprintf(errstr, len, "unable to receive cookie at server"); perr = 1; break; case IECTRLWRITE: snprintf(errstr, len, "unable to write to the control socket"); perr = 1; break; case IECTRLREAD: snprintf(errstr, len, "unable to read from the control socket"); perr = 1; break; case IECTRLCLOSE: snprintf(errstr, len, "control socket has closed unexpectedly"); break; case IEMESSAGE: snprintf(errstr, len, "received an unknown control message"); break; case IESENDMESSAGE: snprintf(errstr, len, "unable to send control message"); perr = 1; break; case IERECVMESSAGE: snprintf(errstr, len, "unable to receive control message"); perr = 1; break; case IESENDPARAMS: snprintf(errstr, len, "unable to send parameters to server"); perr = 1; break; case IERECVPARAMS: snprintf(errstr, len, "unable to receive parameters from client"); perr = 1; break; case IEPACKAGERESULTS: snprintf(errstr, len, "unable to package results"); perr = 1; break; case IESENDRESULTS: snprintf(errstr, len, "unable to send results"); perr = 1; break; case IERECVRESULTS: snprintf(errstr, len, "unable to receive results"); perr = 1; break; case IESELECT: snprintf(errstr, len, "select failed"); perr = 1; break; case IECLIENTTERM: snprintf(errstr, len, "the client has terminated"); break; case IESERVERTERM: snprintf(errstr, len, "the server has terminated"); break; case IEACCESSDENIED: snprintf(errstr, len, "the server is busy running a test. try again later"); break; case IESETNODELAY: snprintf(errstr, len, "unable to set TCP/SCTP NODELAY"); perr = 1; break; case IESETMSS: snprintf(errstr, len, "unable to set TCP/SCTP MSS"); perr = 1; break; case IESETBUF: snprintf(errstr, len, "unable to set socket buffer size"); perr = 1; break; case IESETTOS: snprintf(errstr, len, "unable to set IP TOS"); perr = 1; break; case IESETCOS: snprintf(errstr, len, "unable to set IPv6 traffic class"); perr = 1; break; case IESETFLOW: snprintf(errstr, len, "unable to set IPv6 flow label"); break; case IEREUSEADDR: snprintf(errstr, len, "unable to reuse address on socket"); perr = 1; break; case IENONBLOCKING: snprintf(errstr, len, "unable to set socket to non-blocking"); perr = 1; break; case IESETWINDOWSIZE: snprintf(errstr, len, "unable to set socket window size"); perr = 1; break; case IEPROTOCOL: snprintf(errstr, len, "protocol does not exist"); break; case IEAFFINITY: snprintf(errstr, len, "unable to set CPU affinity"); perr = 1; break; case IEDAEMON: snprintf(errstr, len, "unable to become a daemon"); perr = 1; break; case IECREATESTREAM: snprintf(errstr, len, "unable to create a new stream"); herr = 1; perr = 1; break; case IEINITSTREAM: snprintf(errstr, len, "unable to initialize stream"); herr = 1; perr = 1; break; case IESTREAMLISTEN: snprintf(errstr, len, "unable to start stream listener"); herr = 1; perr = 1; break; case IESTREAMCONNECT: snprintf(errstr, len, "unable to connect stream"); herr = 1; perr = 1; break; case IESTREAMACCEPT: snprintf(errstr, len, "unable to accept stream connection"); perr = 1; break; case IESTREAMWRITE: snprintf(errstr, len, "unable to write to stream socket"); perr = 1; break; case IESTREAMREAD: snprintf(errstr, len, "unable to read from stream socket"); perr = 1; break; case IESTREAMCLOSE: snprintf(errstr, len, "stream socket has closed unexpectedly"); break; case IESTREAMID: snprintf(errstr, len, "stream has an invalid id"); break; case IENEWTIMER: snprintf(errstr, len, "unable to create new timer"); perr = 1; break; case IEUPDATETIMER: snprintf(errstr, len, "unable to update timer"); perr = 1; break; case IESETCONGESTION: snprintf(errstr, len, "unable to set TCP_CONGESTION: " "Supplied congestion control algorithm not supported on this host"); break; case IEPIDFILE: snprintf(errstr, len, "unable to write PID file"); perr = 1; break; case IEV6ONLY: snprintf(errstr, len, "Unable to set/reset IPV6_V6ONLY"); perr = 1; break; case IESETSCTPDISABLEFRAG: snprintf(errstr, len, "unable to set SCTP_DISABLE_FRAGMENTS"); perr = 1; break; case IESETSCTPNSTREAM: snprintf(errstr, len, "unable to set SCTP_INIT num of SCTP streams\n"); perr = 1; break; case IESETPACING: snprintf(errstr, len, "unable to set socket pacing"); perr = 1; break; case IESETBUF2: snprintf(errstr, len, "socket buffer size not set correctly"); break; case IEREVERSEBIDIR: snprintf(errstr, len, "cannot be both reverse and bidirectional"); break; case IETOTALRATE: snprintf(errstr, len, "total required bandwidth is larger than server limit"); break; } /* Append the result of strerror() or gai_strerror() if appropriate */ if (herr || perr) strncat(errstr, ": ", len - strlen(errstr) - 1); if (errno && perr) strncat(errstr, strerror(errno), len - strlen(errstr) - 1); else if (herr && gerror) { strncat(errstr, gai_strerror(gerror), len - strlen(errstr) - 1); gerror = 0; } return errstr; }