2 * netsniff-ng - the packet sniffing beast
3 * Mausezahn, a fast versatile traffic generator
4 * Copyright 2008, 2009, 2010 Herbert Haas.
5 * Subject to the GPL, version 2.
10 #include <pcap/pcap.h>
20 #include <sys/types.h>
21 #include <sys/socket.h>
22 #include <arpa/inet.h>
23 #include <sys/ioctl.h>
24 #include <netinet/in.h>
34 int verbose_level
= 0;
36 static const char *short_options
= "46hqvVSxra:A:b:B:c:d:E:f:F:l:p:P:t:T:M:Q:X:";
38 static void signal_handler(int number
)
43 void clean_up(int sig
)
46 struct arp_table_struct
*cur
, *next
;
48 if (!quiet
) fprintf(stderr
, "\nMausezahn cleans up...\n");
51 verbose_l1(" close files (1) ...\n");
58 if (verbose
) fprintf(stderr
, " close files (2) ...\n");
65 if (verbose
) fprintf(stderr
, " clear mops list...\n");
66 mops_cleanup(mp_head
);
67 if (verbose
) fprintf(stderr
, " clear automops list...\n");
68 automops_cleanup(amp_head
);
69 if (verbose
) fprintf(stderr
, " clear packet sequences...\n");
70 mz_ll_delete_list(packet_sequences
);
73 for (i
=0; i
<device_list_entries
; i
++) {
74 if (device_list
[i
].p_arp
!=NULL
) {
75 pcap_close(device_list
[i
].p_arp
);
76 fprintf(stderr
, " stopped ARP process for device %s\n", device_list
[i
].dev
);
78 if (device_list
[i
].arprx_thread
!=0) {
79 pthread_cancel(device_list
[i
].arprx_thread
);
81 fprintf(stderr
, " (ARP thread for device %s done)\n", device_list
[i
].dev
);
84 if (device_list
[i
].arp_table
!=NULL
) {
85 cur
=device_list
[i
].arp_table
;
88 if (cur
!=NULL
) free(cur
);
93 // close packet sockets
94 if (device_list
[i
].ps
>=0) {
95 close(device_list
[i
].ps
);
100 if (verbose
) fprintf(stderr
, "finished.\n");
105 static void help(void)
107 printf("\nmausezahn %s, a fast versatile traffic generator\n", VERSION_STRING
);
108 puts("http://www.netsniff-ng.org\n\n"
109 "Usage: mausezahn [options] [interface] <keyword>|<arg-string>|<hex-string>\n"
111 " -x <port> Interactive mode with telnet CLI, default port: 25542\n"
112 " -l <ip> Listen address to bind to when in interactive mode, default: 0.0.0.0\n"
113 " -4 IPv4 mode (default)\n"
115 " -c <count> Send packet count times, default:1, infinite:0\n"
116 " -d <delay> Apply delay between transmissions. The delay value can be\n"
117 " specified in usec (default, no additional unit needed), or in\n"
118 " msec (e.g. 100m or 100msec), or in seconds (e.g. 100s or 100sec)\n"
119 " -r Multiplies the specified delay with a random value\n"
120 " -p <length> Pad the raw frame to specified length (using random bytes)\n"
121 " -a <srcmac|keyword> Use specified source mac address, no matter what has\n"
122 " been specified with other arguments; keywords see below,\n"
123 " Default is own interface\n"
124 " -b <dstmac|keyword> Same with destination mac address; keywords:\n"
125 " rand Use a random MAC address\n"
126 " bc Use a broadcast MAC address\n"
127 " own Use own interface MAC address (default for source MAC)\n"
128 " stp Use IEEE 802.1d STP multicast address\n"
129 " cisco Use Cisco multicast address as used for CDP, VTP, or PVST+\n"
130 " -A <srcip> Use specified source IP address (default is own interface IP)\n"
131 " -B <dstip|dnsname> Send packet to specified destination IP or domain name\n"
132 " -P <ascii payload> Use the specified ASCII payload\n"
133 " -f <filename> Read the ASCII payload from a file\n"
134 " -F <filename> Read the hexadecimal payload from a file\n"
135 " -Q <[CoS:]vlan> Specify 802.1Q VLAN tag and optional Class of Service, you can\n"
136 " specify multiple 802.1Q VLAN tags (QinQ...) by separating them\n"
137 " via a comma or a period (e.g. '5:10,20,2:30')\n"
138 " -t <packet-type> Specify packet type for autobuild (you don't need to care for\n"
139 " encapsulations in lower layers, most packet types allow/require\n"
140 " additional packet-specific arguments in an <arg-string>;\n"
141 " Currently supported types: arp, bpdu, cdp, ip, icmp, udp, tcp,\n"
142 " dns, rtp, syslog, lldp and more;\n"
143 " For context-help use 'help' as <arg-string>!\n"
144 " -T <packet-type> Specify packet type for server mode, currently only rtp is supported;\n"
145 " Enter -T help or -T rtp help for further information\n"
146 " -M <MPLS-label> Insert a MPLS label, enter '-M help' for a syntax description\n"
147 " -V|VV|... Verbose and more verbose mode\n"
148 " -q Quiet mode, even omit 'important' standard short messages\n"
149 " -S Simulation mode: DOES NOT put anything on the wire, this is\n"
150 " typically combined with one of the verbose modes (v or V)\n"
152 " -h Print this help\n\n"
155 " mausezahn -c 0 -d 2s -t bpdu conf\n"
156 " mausezahn -t cdp change -c 0\n"
157 " mausezahn -t syslog sev=3 -P \"You have been mausezahned.\" -A 10.1.1.109 -B 192.168.7.7\n"
158 " mausezahn eth0 -A rand -B 1.1.1.1 -c 0 -t tcp \"dp=1-1023, flags=syn\"\n\n"
160 " This tool is targeted for network developers! You should\n"
161 " be aware of what you are doing and what these options above\n"
162 " mean! Only use this tool in an isolated LAN that you own!\n\n"
163 "Please report bugs to <bugs@netsniff-ng.org>\n"
164 "Copyright (C) 2008-2010 Herbert Haas <herbert@perihel.at>,\n"
165 "Copyright (C) 2011 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,\n"
166 "Swiss federal institute of technology (ETH Zurich)\n"
167 "License: GNU GPL version 2.0\n"
168 "This is free software: you are free to change and redistribute it.\n"
169 "There is NO WARRANTY, to the extent permitted by law.\n");
173 static void version(void)
175 printf("\nmausezahn %s, Git id: %s\n", VERSION_LONG
, GITVERSION
);
176 puts("a fast versatile traffic generator\n"
177 "http://www.netsniff-ng.org\n\n"
178 "Please report bugs to <bugs@netsniff-ng.org>\n"
179 "Copyright (C) 2008-2010 Herbert Haas <herbert@perihel.at>,\n"
180 "Copyright (C) 2011 Daniel Borkmann <dborkma@tik.ee.ethz.ch>,\n"
181 "Swiss federal institute of technology (ETH Zurich)\n"
182 "License: GNU GPL version 2.0\n"
183 "This is free software: you are free to change and redistribute it.\n"
184 "There is NO WARRANTY, to the extent permitted by law.\n");
193 // Determine platform type sizes:
194 MZ_SIZE_LONG_INT
= sizeof(long int);
196 mz_default_config_path
[0] = 0x00;
197 mz_default_log_path
[0] = 0x00;
207 gind_max
= TIME_COUNT
;
212 char mz_listen_addr
[16] = "0.0.0.0";
215 for (i
=0;i
<TIME_COUNT_MAX
;i
++) jitter
[i
] = 0;
217 time0_flag
= 0; // If set then time0 has valid data
218 sqnr0_flag
= 0; // If set then sqnr_last and sqnr_next has valid data
220 mz_ssrc
[0]=0; mz_ssrc
[1]=0; mz_ssrc
[2]=0; mz_ssrc
[3]=0;
222 // Reset mgmt parameters of TX:
223 tx
.packet_mode
= 1; // assume we don't care about L2
225 tx
.delay
= DEFAULT_DELAY
;
226 tx
.arg_string
[0] = '\0';
228 // Reset Ethernet parameters of TX:
229 tx
.eth_params_already_set
= 0;
230 for (i
=0; i
<6; i
++) tx
.eth_dst
[i
] = 0xff;
231 for (i
=0; i
<6; i
++) tx
.eth_src
[i
] = 0; // TODO: Get own MAC !!!
232 tx
.eth_dst_txt
[0] = '\0';
233 tx
.eth_src_txt
[0] = '\0';
239 tx
.eth_payload
[0] = '\0';
240 tx
.eth_payload_s
= 0;
243 // Reset CDP parameters for TX:
247 tx
.cdp_payload
[0] = '\0';
248 tx
.cdp_payload_s
= 0;
249 tx
.cdp_tlv_id
[0] = '\0';
250 tx
.cdp_tlv_id_len
= 0;
252 // Reset 802.1Q parameters of TX:
254 tx
.dot1Q_txt
[0] = '\0';
257 tx
.ascii
= 0; // 1 if specified
258 tx
.ascii_payload
[0]= '\0';
261 tx
.hex_payload_s
= 0;
263 // Reset MPLS parameters of TX:
265 tx
.mpls_txt
[0] = '\0';
270 tx
.mpls_verbose_string
[0] = '\0';
272 // Reset IP parameters of TX:
273 tx
.ip_src_txt
[0] = '\0';
275 tx
.ip_dst_txt
[0] = '\0';
276 tx
.ip_src_isrange
= 0;
282 tx
.ip_dst_isrange
= 0;
285 tx
.ip_payload
[0]= '\0';
287 tx
.ip_option
[0]= '\0';
290 // Reset ICMP parameters:
293 tx
.icmp_chksum
=0; // 0=autofill
298 // Reset general L4 parameters:
308 // Reset UDP parameters of TX:
310 tx
.udp_len
= 0; // If set to zero then create_udp_packet will calculate it
312 tx
.udp_payload
[0] = '\0';
313 tx
.udp_payload_s
= 0;
315 // Reset TCP parameters of TX:
318 tx
.tcp_seq_stop
= 42;
319 tx
.tcp_seq_delta
= 0; // also used as 'isrange' meaning
325 tx
.tcp_len
= 20; // Least size (TCP header only)
326 tx
.tcp_payload
[0] = '\0';
327 tx
.tcp_payload_s
= 0;
329 // Reset RTP parameters of TX:
333 // Initialize random generator
335 srand((unsigned int)t
);
338 for (i
=0; i
<MZ_MAX_DEVICES
; i
++) {
339 device_list
[i
].arprx_thread
= 0;
340 device_list
[i
].p_arp
= NULL
;
341 device_list
[i
].arp_table
= NULL
;
342 device_list
[i
].ps
=-1;
343 device_list
[i
].cli
=0;
344 device_list
[i
].mgmt_only
=0;
352 // Purpose: Properly handle arguments and configure global structs (tx)
353 int getopts (int argc
, char *argv
[])
355 int i
, c
, rargs
, RX
=0, count_set
=0, delay_set
=0;
356 unsigned int time_factor
;
357 char *packet_type
=NULL
, *mops_type
=NULL
;
359 unsigned char *dum1
, *dum2
;
360 bool do_help
= false;
363 char err_buf
[LIBNET_ERRBUF_SIZE
];
364 struct libnet_ether_addr
*mymac
;
367 char hexpld
[MAX_PAYLOAD_SIZE
*2];
368 int hexpld_specified
=0;
370 opterr
= 1; // let getopt print error message if necessary
373 while ((c
= getopt(argc
, argv
, short_options
)) != -1)
376 tx
.eth_type
= 0x0800;
380 tx
.eth_type
= 0x86dd;
399 mz_port
= MZ_DEFAULT_PORT
;
402 strncpy (mz_listen_addr
, optarg
, sizeof(mz_listen_addr
));
405 strncpy (tx
.eth_src_txt
, optarg
, 32);
409 strncpy (tx
.ip_src_txt
, optarg
, sizeof(tx
.ip_src_txt
));
412 strncpy (tx
.eth_dst_txt
, optarg
, 32);
416 strncpy (tx
.ip_dst_txt
, optarg
, sizeof(tx
.ip_dst_txt
));
420 tx
.count
= strtol(optarg
, (char **)NULL
, 10);
421 if ((errno
== ERANGE
&& (tx
.count
== LONG_MAX
|| tx
.count
== LONG_MIN
))
422 || (errno
!= 0 && tx
.count
== 0)) {
426 if (tx
.count
<0) tx
.count
=1; //TODO: Allow count=0 which means infinity (need to update all send_functions)
431 // determine whether seconds or msecs are used
432 // default is usec!!!
434 if (exists(optarg
,"s") || exists(optarg
,"sec")) time_factor
=1000000;
435 if (exists(optarg
,"m") || exists(optarg
,"msec")) time_factor
=1000;
436 dum
= strtok(optarg
,"ms");
437 tx
.delay
= strtol(dum
, (char **)NULL
, 10) * time_factor
;
438 if ((errno
== ERANGE
&& (tx
.delay
== LONG_MAX
|| tx
.delay
== LONG_MIN
))
439 || (errno
!= 0 && tx
.delay
== 0)) {
443 if (tx
.delay
<0) tx
.delay
=0; // no delay
448 tx
.padding
= strtol(optarg
, (char **)NULL
, 10);
449 if ((errno
== ERANGE
&& (tx
.padding
== LONG_MAX
|| tx
.padding
== LONG_MIN
))
450 || (errno
!= 0 && tx
.padding
== 0)) {
454 if (tx
.padding
>10000) {
455 fprintf(stderr
, " Warning: Padding must not exceed 10000!\n");
460 packet_type
= optarg
; // analyzed below
463 mops_type
= optarg
; // MOPS TRANSITION STRATEGY -- analyzed below
466 packet_type
= optarg
;
473 if (strncmp(optarg
,"help",4)==0) {
474 (void) get_mpls_params("help ");
477 strncpy (tx
.mpls_txt
, optarg
, 128);
478 tx
.eth_type
= ETHERTYPE_MPLS
;
483 case 'P': // ASCII payload
484 strncpy((char*)tx
.ascii_payload
, optarg
, MAX_PAYLOAD_SIZE
);
487 case 'f': // ASCII payload in FILE
488 afp
= fopen(optarg
, "r");
489 if (fgets((char*)tx
.ascii_payload
, MAX_PAYLOAD_SIZE
, afp
) == NULL
)
490 fprintf(stderr
, " mz/getopts: File empty?\n");
494 case 'F': // HEX payload in FILE
495 afp
= fopen(optarg
, "r");
497 while ( (hexpld
[i
]=fgetc(afp
))!=EOF
) {
498 if (isspace(hexpld
[i
])) {
507 case 'Q': // VLAN TAG
508 if (strncmp(optarg
,"help",4)==0) {
509 print_dot1Q_help(); // ugly but most simple and safe solution
512 strncpy (tx
.dot1Q_txt
, optarg
, 32);
514 // determine number of VLAN tags
515 for (i
=0; i
<strlen(tx
.dot1Q_txt
); i
++) {
516 if (tx
.dot1Q_txt
[i
]==',') tx
.dot1Q
++;
522 if ((optopt
== 'a') || (optopt
== 'b') || (optopt
= 'c') ||
523 (optopt
== 'd') || (optopt
== 'f') || (optopt
= 'p') ||
524 (optopt
== 't') || (optopt
== 'm'))
525 fprintf (stderr
, " mz/getopts: Option -%c requires an argument.\n", optopt
);
526 else if (isprint (optopt
))
527 fprintf (stderr
, " mz/getopts: Unknown option -%c'.\n", optopt
);
529 fprintf (stderr
, " mz/getopts: Unknown option character \\x%x'.\n", optopt
);
532 fprintf (stderr
," mz/getopts: Could not handle arguments properly!\n");
536 // ********************************************
537 // Handle additional arguments
538 // ********************************************
545 "Use at your own risk and responsibility!\n"
546 "-- Verbose mode --\n"
554 if ((rargs
=argc
-optind
)>2) { // number of remaining arguments
555 fprintf(stderr
," mz/getopts: Too many arguments!\n");
560 // There can be 0-2 additional arguments
563 if (lookupdev()) { // no device found
564 if (verbose
) fprintf(stderr
, " mz: no active interfaces found!\n");
565 strcpy(tx
.device
, "lo");
568 case 1: // arg_string OR device given => find out!
569 if ( (strncmp(argv
[optind
],"eth",3)==0)
570 || (strncmp(argv
[optind
],"ath",3)==0)
571 || ((strncmp(argv
[optind
],"lo",2)==0)&&(strncmp(argv
[optind
],"log",3)!=0))
572 || (strncmp(argv
[optind
],"vmnet",5)==0)
573 || (strncmp(argv
[optind
],"wifi",4)==0) ) {
574 // device has been specified!
575 strncpy (tx
.device
, argv
[optind
], 16);
577 else { /// arg_string given => no device has been specified -- let's find one!
578 strncpy (tx
.arg_string
, argv
[optind
], MAX_PAYLOAD_SIZE
);
579 do_help
= !!getarg(tx
.arg_string
,"help", NULL
);
582 /* no device found */
584 fprintf(stderr
, " mz: no active interfaces found!\n");
585 strcpy(tx
.device
, "lo");
588 fprintf(stderr
," mz: device not given, will use %s\n",tx
.device
);
592 case 2: // both device and arg_string given
593 strncpy (tx
.device
, argv
[optind
], 16);
594 strncpy (tx
.arg_string
, argv
[optind
+1], MAX_PAYLOAD_SIZE
);
597 fprintf(stderr
," mz/getopts: Unknown argument problem!\n");
601 if (hexpld_specified
) {
602 strcat(tx
.arg_string
, ",p=");
603 strcat(tx
.arg_string
, hexpld
);
607 //////////////////////////////////////////////////////////////////////////
609 // Initialize MAC and IP Addresses.
611 // - tx.eth_src = own interface MAC
612 // - tx.ip_src = own interface IP or user specified
613 // - tx.ip_dst = 255.255.255.255 or user specified (can be a range)
614 // - tx.ip_src_rand ... is set if needed.
617 // Get own device MAC address:
618 // Don't open context if only a help text is requested
619 if (!do_help
&& getarg(tx
.arg_string
,"help", NULL
) !=1) {
620 l
= libnet_init (LIBNET_LINK_ADV
, tx
.device
, err_buf
);
622 fprintf(stderr
, " mz/getopts: libnet_init() failed (%s)", err_buf
);
625 mymac
= libnet_get_hwaddr(l
);
626 for (i
=0; i
<6; i
++) {
627 tx
.eth_src
[i
] = mymac
->ether_addr_octet
[i
];
628 tx
.eth_mac_own
[i
] = mymac
->ether_addr_octet
[i
];
631 // Set source IP address:
632 if (strlen(tx
.ip_src_txt
)) { // option -A has been specified
633 if (mz_strcmp(tx
.ip_src_txt
, "bcast", 2)==0) {
634 tx
.ip_src
= libnet_name2addr4 (l
, "255.255.255.255", LIBNET_DONT_RESOLVE
);
635 } else if (strcmp(tx
.ip_src_txt
, "rand") == 0) {
637 tx
.ip_src_h
= (u_int32_t
) ( ((float) rand()/RAND_MAX
)*0xE0000000); //this is 224.0.0.0
639 else if (get_ip_range_src(tx
.ip_src_txt
)) { // returns 1 when no range has been specified
640 // name2addr4 accepts a DOTTED DECIMAL ADDRESS or a FQDN:
642 tx
.ip6_src
= libnet_name2addr6 (l
, tx
.ip_src_txt
, LIBNET_RESOLVE
);
644 tx
.ip_src
= libnet_name2addr4 (l
, tx
.ip_src_txt
, LIBNET_RESOLVE
);
647 else { // no source IP specified: by default use own IP address
649 tx
.ip6_src
= libnet_get_ipaddr6(l
);
650 if (strncmp((char*)&tx
.ip6_src
,(char*)&in6addr_error
,sizeof(in6addr_error
))==0)
651 printf("Failed to set source IPv6 address: %s", l
->err_buf
);
654 tx
.ip_src
= libnet_get_ipaddr4(l
);
657 // Set destination IP address:
658 if (strlen(tx
.ip_dst_txt
)) { // option -B has been specified
659 if (mz_strcmp(tx
.ip_dst_txt
, "rand", 2)==0) {
660 fprintf(stderr
, "Option -B does not support random destination IP addresses currently.\n");
664 if (mz_strcmp(tx
.ip_dst_txt
, "bcast", 2)==0) {
665 tx
.ip_dst
= libnet_name2addr4 (l
, "255.255.255.255", LIBNET_DONT_RESOLVE
);
666 } else if (get_ip_range_dst(tx
.ip_dst_txt
)) { // returns 1 when no range has been specified
667 // name2addr4 accepts a DOTTED DECIMAL ADDRESS or a FQDN:
669 tx
.ip6_dst
= libnet_name2addr6 (l
, tx
.ip_dst_txt
, LIBNET_RESOLVE
);
671 tx
.ip_dst
= libnet_name2addr4 (l
, tx
.ip_dst_txt
, LIBNET_RESOLVE
);
674 else { // no destination IP specified: by default use broadcast
675 tx
.ip_dst
= libnet_name2addr4 (l
, "255.255.255.255", LIBNET_DONT_RESOLVE
);
678 // Initialize tx.ip_src_h and tx.ip_dst_h which are used by 'print_frame_details()'
679 // in verbose mode. See 'modifications.c'.
681 if (tx
.ip_src_rand
) { // ip_src_h already given, convert to ip_src
682 dum1
= (unsigned char*) &tx
.ip_src_h
;
683 dum2
= (unsigned char*) &tx
.ip_src
;
685 else { // ip_src already given, convert to ip_src_h
686 dum1
= (unsigned char*) &tx
.ip_src
;
687 dum2
= (unsigned char*) &tx
.ip_src_h
;
698 dum1
= (unsigned char*) &tx
.ip_dst
;
699 dum2
= (unsigned char*) &tx
.ip_dst_h
;
713 // END OF ADDRESS INITIALIZATION
715 //////////////////////////////////////////////////////////////////////////
718 ////// retrieve interface parameters ///////
720 for (i
=0; i
<device_list_entries
; i
++) {
721 get_dev_params(device_list
[i
].dev
);
725 //////////////////////////////////////////////////////////////////////////
727 // Mausezahn CLI desired?
729 // has port number been specified?
730 if (strlen(tx
.arg_string
)) {
731 mz_port
= (int) str2int (tx
.arg_string
);
738 //////////////////////////////////////////////////////////////////////////
742 // Consider -t and -m option (used exclusively)
743 // -t => special packet types, stateless
745 // If -t not present then evaluate arg_string which must
746 // contain a byte-string in hexadecimal notation.
750 // ***** NEW: MOPS TRANSITION STRATEGY *****
751 if (mops_type
!= NULL
) {
753 if (mz_strcmp(mops_type
,"lldp",4)==0) {
754 mops_direct(tx
.device
, MOPS_LLDP
, tx
.arg_string
);
759 if (packet_type
== NULL
) { // raw hex string given
762 else if (strcmp(packet_type
,"arp")==0) {
765 else if (strcmp(packet_type
,"bpdu")==0) {
768 else if (strcmp(packet_type
,"ip")==0) {
771 else if (strcmp(packet_type
,"udp")==0) {
774 else if (strcmp(packet_type
,"icmp")==0) {
777 else if (strcmp(packet_type
,"icmp6")==0) {
780 else if (strcmp(packet_type
,"tcp")==0) {
783 else if (strcmp(packet_type
,"dns")==0) {
786 else if (strcmp(packet_type
,"cdp")==0) {
789 else if (strcmp(packet_type
,"syslog")==0) {
792 else if (strcmp(packet_type
,"lldp")==0) {
794 tx
.packet_mode
=0; // create whole frame by ourself
796 else if (strcmp(packet_type
,"rtp")==0) {
802 if (!count_set
) tx
.count
= 0;
803 if (!delay_set
) tx
.delay
= 20000; // 20 msec inter-packet delay for RTP
806 else if (strcmp(packet_type
,"help")==0) {
810 "| The following packet types are currently implemented:\n"
812 "| arp ... sends ARP packets\n"
813 "| bpdu ... sends BPDU packets (STP or PVST+)\n"
814 "| cdp ... sends CDP messages\n"
815 "| ip ... sends IPv4 packets\n"
816 "| udp ... sends UDP datagrams\n"
817 "| tcp ... sends TCP segments\n"
818 "| icmp ... sends ICMP messages\n"
819 "| dns ... sends DNS messages\n"
820 "| rtp ... sends RTP datagrams\n"
821 "| syslog ... sends Syslog messages\n"
823 "| Of course you can build any other packet type 'manually' using the direct layer 2 mode.\n"
824 "| FYI: The interactive mode supports additional protocols. (Try mz -x <port>)\n"
830 fprintf(stderr
, " mz: you must specify a valid packet type!\n");
834 //////////////////////////////////////////////////////////////////////////
836 // TODO: Implement macro support
837 // Check macro types here
842 int main(int argc
, char **argv
)
844 // These handles are only used when creating L3 and above packets.
845 libnet_t
*l
; // the context
846 libnet_ptag_t t2
=0, t3
=0, t4
=0; // handles to layers
847 double cpu_time_used
;
851 if ( getopts(argc
, argv
) )
853 (void) fprintf(stderr
, " Invalid command line parameters!\n");
857 // Check whether hires timers are supported or not:
858 (void) check_timer();
860 signal(SIGINT
, signal_handler
); // to close all file pointers etc upon SIGINT
880 case IP
: // From now on a new much more modular method is used:
881 l
= get_link_context();
882 t3
= create_ip_packet(l
); // t3 can be used for later header changes
883 if (!quiet
) complexity();
884 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
885 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
887 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
892 l
= get_link_context();
893 t4
= create_icmp_packet(l
); // t4 can be used for later header changes
894 t3
= create_ip_packet(l
); // t3 can be used for later header changes
895 if (!quiet
) complexity();
896 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
897 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
899 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
904 l
= get_link_context();
905 t4
= create_icmp6_packet(l
); // t4 can be used for later header changes
906 t3
= create_ip_packet(l
); // t3 can be used for later header changes
909 if (!quiet
) complexity();
910 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
911 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
913 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
918 l
= get_link_context();
919 t4
= create_udp_packet(l
); // t4 can be used for later header changes
920 t3
= create_ip_packet(l
); // t3 can be used for later header changes
923 if (!quiet
) complexity();
924 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
925 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
927 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
932 l
= get_link_context();
933 t4
= create_tcp_packet(l
); // t4 can be used for later header changes
934 t3
= create_ip_packet(l
); // t3 can be used for later header changes
937 if (!quiet
) complexity();
938 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
939 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
941 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
946 l
= get_link_context();
947 (void) create_dns_packet();
948 t4
= create_udp_packet(l
); // t4 can be used for later header changes
949 t3
= create_ip_packet(l
); // t3 can be used for later header changes
950 if (!quiet
) complexity();
951 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
952 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
954 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
959 l
= get_link_context();
960 if (!quiet
) fprintf(stderr
, " mz: RTP mode! (count=%u, delay=%u usec)\n\n", tx
.count
, tx
.delay
);
961 (void) create_rtp_packet();
962 t4
= create_udp_packet(l
); // t4 can be used for later header changes
963 t3
= create_ip_packet(l
); // t3 can be used for later header changes
964 if (!quiet
) complexity();
965 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
966 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
968 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
971 case RX_RTP
: // Receive RTP packets
978 l
= get_link_context();
979 (void) create_syslog_packet();
980 t4
= create_udp_packet(l
); // t4 can be used for later header changes
981 t3
= create_ip_packet(l
); // t3 can be used for later header changes
982 if (!quiet
) complexity();
984 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
985 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
987 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
990 case LLDP
: // start with a new concept here
991 //l = get_link_context();
992 //(void) create_lldp_packet();
993 // // // printf("SIZE=%lu\n",sizeof(struct tx_struct));
994 fprintf(stderr
, "LLDP is currently only supported via the interactive mode\n");
1000 (void) fprintf(stderr
," mz/main: unknown mode! Stop.\n");
1007 cpu_time_used
= ((double) (mz_stop
- mz_start
)) / CLOCKS_PER_SEC
;
1008 if (cpu_time_used
> 0)
1010 total_d
/= cpu_time_used
;
1011 fprintf(stderr
, "%.2f seconds (%.Lf packets per second)\n",cpu_time_used
,total_d
);
1015 fprintf(stderr
, "\n");