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|help> 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;
286 tx
.ip_payload
[0]= '\0';
288 tx
.ip_option
[0]= '\0';
291 // Reset ICMP parameters:
294 tx
.icmp_chksum
=0; // 0=autofill
299 // Reset general L4 parameters:
309 // Reset UDP parameters of TX:
311 tx
.udp_len
= 0; // If set to zero then create_udp_packet will calculate it
313 tx
.udp_payload
[0] = '\0';
314 tx
.udp_payload_s
= 0;
316 // Reset TCP parameters of TX:
319 tx
.tcp_seq_stop
= 42;
320 tx
.tcp_seq_delta
= 0; // also used as 'isrange' meaning
326 tx
.tcp_len
= 20; // Least size (TCP header only)
327 tx
.tcp_payload
[0] = '\0';
328 tx
.tcp_payload_s
= 0;
330 // Reset RTP parameters of TX:
334 // Initialize random generator
336 srand((unsigned int)t
);
339 for (i
=0; i
<MZ_MAX_DEVICES
; i
++) {
340 device_list
[i
].arprx_thread
= 0;
341 device_list
[i
].p_arp
= NULL
;
342 device_list
[i
].arp_table
= NULL
;
343 device_list
[i
].ps
=-1;
344 device_list
[i
].cli
=0;
345 device_list
[i
].mgmt_only
=0;
351 static void print_packet_types(void)
356 "| The following packet types are currently implemented:\n"
358 "| arp ... sends ARP packets\n"
359 "| bpdu ... sends BPDU packets (STP or PVST+)\n"
360 "| cdp ... sends CDP messages\n"
361 "| ip ... sends IPv4 packets\n"
362 "| udp ... sends UDP datagrams\n"
363 "| tcp ... sends TCP segments\n"
364 "| icmp ... sends ICMP messages\n"
365 "| igmp ... sends IGMP messages\n"
366 "| dns ... sends DNS messages\n"
367 "| rtp ... sends RTP datagrams\n"
368 "| syslog ... sends Syslog messages\n"
370 "| Of course you can build any other packet type 'manually' using the direct layer 2 mode.\n"
371 "| FYI: The interactive mode supports additional protocols. (Try mz -x <port>)\n"
377 // Purpose: Properly handle arguments and configure global structs (tx)
378 int getopts (int argc
, char *argv
[])
380 int i
, c
, rargs
, RX
=0, count_set
=0, delay_set
=0;
381 unsigned int time_factor
;
382 char *packet_type
=NULL
, *mops_type
=NULL
;
384 unsigned char *dum1
, *dum2
;
385 bool do_help
= false;
388 char err_buf
[LIBNET_ERRBUF_SIZE
];
389 struct libnet_ether_addr
*mymac
;
392 char hexpld
[MAX_PAYLOAD_SIZE
*2];
393 int hexpld_specified
=0;
395 opterr
= 1; // let getopt print error message if necessary
398 while ((c
= getopt(argc
, argv
, short_options
)) != -1)
401 tx
.eth_type
= 0x0800;
405 tx
.eth_type
= 0x86dd;
424 mz_port
= MZ_DEFAULT_PORT
;
427 strncpy (mz_listen_addr
, optarg
, sizeof(mz_listen_addr
));
430 strncpy (tx
.eth_src_txt
, optarg
, 32);
434 strncpy (tx
.ip_src_txt
, optarg
, sizeof(tx
.ip_src_txt
));
437 strncpy (tx
.eth_dst_txt
, optarg
, 32);
441 strncpy (tx
.ip_dst_txt
, optarg
, sizeof(tx
.ip_dst_txt
));
445 tx
.count
= strtol(optarg
, (char **)NULL
, 10);
446 if ((errno
== ERANGE
&& (tx
.count
== LONG_MAX
|| tx
.count
== LONG_MIN
))
447 || (errno
!= 0 && tx
.count
== 0)) {
451 if (tx
.count
<0) tx
.count
=1; //TODO: Allow count=0 which means infinity (need to update all send_functions)
456 // determine whether seconds or msecs are used
457 // default is usec!!!
459 if (exists(optarg
,"s") || exists(optarg
,"sec")) time_factor
=1000000;
460 if (exists(optarg
,"m") || exists(optarg
,"msec")) time_factor
=1000;
461 dum
= strtok(optarg
,"ms");
462 tx
.delay
= strtol(dum
, (char **)NULL
, 10) * time_factor
;
463 if ((errno
== ERANGE
&& (tx
.delay
== LONG_MAX
|| tx
.delay
== LONG_MIN
))
464 || (errno
!= 0 && tx
.delay
== 0)) {
468 if (tx
.delay
<0) tx
.delay
=0; // no delay
473 tx
.padding
= strtol(optarg
, (char **)NULL
, 10);
474 if ((errno
== ERANGE
&& (tx
.padding
== LONG_MAX
|| tx
.padding
== LONG_MIN
))
475 || (errno
!= 0 && tx
.padding
== 0)) {
479 if (tx
.padding
>10000) {
480 fprintf(stderr
, " Warning: Padding must not exceed 10000!\n");
485 packet_type
= optarg
; // analyzed below
486 if (strcmp(packet_type
,"help") == 0)
487 print_packet_types();
490 mops_type
= optarg
; // MOPS TRANSITION STRATEGY -- analyzed below
493 packet_type
= optarg
;
500 if (strncmp(optarg
,"help",4)==0) {
501 (void) get_mpls_params("help ");
504 strncpy (tx
.mpls_txt
, optarg
, 128);
505 tx
.eth_type
= ETHERTYPE_MPLS
;
510 case 'P': // ASCII payload
511 strncpy((char*)tx
.ascii_payload
, optarg
, MAX_PAYLOAD_SIZE
);
514 case 'f': // ASCII payload in FILE
515 afp
= fopen(optarg
, "r");
516 if (fgets((char*)tx
.ascii_payload
, MAX_PAYLOAD_SIZE
, afp
) == NULL
)
517 fprintf(stderr
, " mz/getopts: File empty?\n");
521 case 'F': // HEX payload in FILE
522 afp
= fopen(optarg
, "r");
524 while ( (hexpld
[i
]=fgetc(afp
))!=EOF
) {
525 if (isspace(hexpld
[i
])) {
534 case 'Q': // VLAN TAG
535 if (strncmp(optarg
,"help",4)==0) {
536 print_dot1Q_help(); // ugly but most simple and safe solution
539 strncpy (tx
.dot1Q_txt
, optarg
, 32);
541 // determine number of VLAN tags
542 for (i
=0; i
<strlen(tx
.dot1Q_txt
); i
++) {
543 if (tx
.dot1Q_txt
[i
]==',') tx
.dot1Q
++;
549 if ((optopt
== 'a') || (optopt
== 'b') || (optopt
= 'c') ||
550 (optopt
== 'd') || (optopt
== 'f') || (optopt
= 'p') ||
551 (optopt
== 't') || (optopt
== 'm'))
552 fprintf (stderr
, " mz/getopts: Option -%c requires an argument.\n", optopt
);
553 else if (isprint (optopt
))
554 fprintf (stderr
, " mz/getopts: Unknown option -%c'.\n", optopt
);
556 fprintf (stderr
, " mz/getopts: Unknown option character \\x%x'.\n", optopt
);
559 fprintf (stderr
," mz/getopts: Could not handle arguments properly!\n");
563 // ********************************************
564 // Handle additional arguments
565 // ********************************************
572 "Use at your own risk and responsibility!\n"
573 "-- Verbose mode --\n"
581 if ((rargs
=argc
-optind
)>2) { // number of remaining arguments
582 fprintf(stderr
," mz/getopts: Too many arguments!\n");
587 // There can be 0-2 additional arguments
590 if (lookupdev()) { // no device found
591 if (verbose
) fprintf(stderr
, " mz: no active interfaces found!\n");
592 strcpy(tx
.device
, "lo");
595 case 1: // arg_string OR device given => find out!
596 if ( (strncmp(argv
[optind
],"eth",3)==0)
597 || (strncmp(argv
[optind
],"ath",3)==0)
598 || ((strncmp(argv
[optind
],"lo",2)==0)&&(strncmp(argv
[optind
],"log",3)!=0))
599 || (strncmp(argv
[optind
],"vmnet",5)==0)
600 || (strncmp(argv
[optind
],"wifi",4)==0) ) {
601 // device has been specified!
602 strncpy (tx
.device
, argv
[optind
], 16);
604 else { /// arg_string given => no device has been specified -- let's find one!
605 strncpy (tx
.arg_string
, argv
[optind
], MAX_PAYLOAD_SIZE
);
606 do_help
= !!getarg(tx
.arg_string
,"help", NULL
);
609 /* no device found */
611 fprintf(stderr
, " mz: no active interfaces found!\n");
612 strcpy(tx
.device
, "lo");
615 fprintf(stderr
," mz: device not given, will use %s\n",tx
.device
);
619 case 2: // both device and arg_string given
620 strncpy (tx
.device
, argv
[optind
], 16);
621 strncpy (tx
.arg_string
, argv
[optind
+1], MAX_PAYLOAD_SIZE
);
624 fprintf(stderr
," mz/getopts: Unknown argument problem!\n");
628 if (hexpld_specified
) {
629 strcat(tx
.arg_string
, ",p=");
630 strcat(tx
.arg_string
, hexpld
);
634 //////////////////////////////////////////////////////////////////////////
636 // Initialize MAC and IP Addresses.
638 // - tx.eth_src = own interface MAC
639 // - tx.ip_src = own interface IP or user specified
640 // - tx.ip_dst = 255.255.255.255 or user specified (can be a range)
641 // - tx.ip_src_rand ... is set if needed.
644 // Get own device MAC address:
645 // Don't open context if only a help text is requested
646 if (!do_help
&& getarg(tx
.arg_string
,"help", NULL
) !=1) {
647 l
= libnet_init (LIBNET_LINK_ADV
, tx
.device
, err_buf
);
649 fprintf(stderr
, " mz/getopts: libnet_init() failed (%s)", err_buf
);
652 mymac
= libnet_get_hwaddr(l
);
653 for (i
=0; i
<6; i
++) {
654 tx
.eth_src
[i
] = mymac
->ether_addr_octet
[i
];
655 tx
.eth_mac_own
[i
] = mymac
->ether_addr_octet
[i
];
658 // Set source IP address:
659 if (strlen(tx
.ip_src_txt
)) { // option -A has been specified
660 if (mz_strcmp(tx
.ip_src_txt
, "bcast", 2)==0) {
661 tx
.ip_src
= libnet_name2addr4 (l
, "255.255.255.255", LIBNET_DONT_RESOLVE
);
662 } else if (strcmp(tx
.ip_src_txt
, "rand") == 0) {
664 tx
.ip_src_h
= (u_int32_t
) ( ((float) rand()/RAND_MAX
)*0xE0000000); //this is 224.0.0.0
666 else if (get_ip_range_src(tx
.ip_src_txt
)) { // returns 1 when no range has been specified
667 // name2addr4 accepts a DOTTED DECIMAL ADDRESS or a FQDN:
669 tx
.ip6_src
= libnet_name2addr6 (l
, tx
.ip_src_txt
, LIBNET_RESOLVE
);
671 tx
.ip_src
= libnet_name2addr4 (l
, tx
.ip_src_txt
, LIBNET_RESOLVE
);
674 else { // no source IP specified: by default use own IP address
676 tx
.ip6_src
= libnet_get_ipaddr6(l
);
677 if (strncmp((char*)&tx
.ip6_src
,(char*)&in6addr_error
,sizeof(in6addr_error
))==0)
678 printf("Failed to set source IPv6 address: %s", l
->err_buf
);
681 tx
.ip_src
= libnet_get_ipaddr4(l
);
684 // Set destination IP address:
685 if (strlen(tx
.ip_dst_txt
)) { // option -B has been specified
686 if (mz_strcmp(tx
.ip_dst_txt
, "rand", 2)==0) {
687 fprintf(stderr
, "Option -B does not support random destination IP addresses currently.\n");
691 if (mz_strcmp(tx
.ip_dst_txt
, "bcast", 2)==0) {
692 tx
.ip_dst
= libnet_name2addr4 (l
, "255.255.255.255", LIBNET_DONT_RESOLVE
);
693 } else if (get_ip_range_dst(tx
.ip_dst_txt
)) { // returns 1 when no range has been specified
694 // name2addr4 accepts a DOTTED DECIMAL ADDRESS or a FQDN:
696 tx
.ip6_dst
= libnet_name2addr6 (l
, tx
.ip_dst_txt
, LIBNET_RESOLVE
);
698 tx
.ip_dst
= libnet_name2addr4 (l
, tx
.ip_dst_txt
, LIBNET_RESOLVE
);
701 else { // no destination IP specified: by default use broadcast
702 tx
.ip_dst
= libnet_name2addr4 (l
, "255.255.255.255", LIBNET_DONT_RESOLVE
);
705 // Initialize tx.ip_src_h and tx.ip_dst_h which are used by 'print_frame_details()'
706 // in verbose mode. See 'modifications.c'.
708 if (tx
.ip_src_rand
) { // ip_src_h already given, convert to ip_src
709 dum1
= (unsigned char*) &tx
.ip_src_h
;
710 dum2
= (unsigned char*) &tx
.ip_src
;
712 else { // ip_src already given, convert to ip_src_h
713 dum1
= (unsigned char*) &tx
.ip_src
;
714 dum2
= (unsigned char*) &tx
.ip_src_h
;
725 dum1
= (unsigned char*) &tx
.ip_dst
;
726 dum2
= (unsigned char*) &tx
.ip_dst_h
;
740 // END OF ADDRESS INITIALIZATION
742 //////////////////////////////////////////////////////////////////////////
745 ////// retrieve interface parameters ///////
747 for (i
=0; i
<device_list_entries
; i
++) {
748 get_dev_params(device_list
[i
].dev
);
752 //////////////////////////////////////////////////////////////////////////
754 // Mausezahn CLI desired?
756 // has port number been specified?
757 if (strlen(tx
.arg_string
)) {
758 mz_port
= (int) str2int (tx
.arg_string
);
765 //////////////////////////////////////////////////////////////////////////
769 // Consider -t and -m option (used exclusively)
770 // -t => special packet types, stateless
772 // If -t not present then evaluate arg_string which must
773 // contain a byte-string in hexadecimal notation.
777 // ***** NEW: MOPS TRANSITION STRATEGY *****
778 if (mops_type
!= NULL
) {
780 if (mz_strcmp(mops_type
,"lldp",4)==0) {
781 mops_direct(tx
.device
, MOPS_LLDP
, tx
.arg_string
);
786 if (packet_type
== NULL
) { // raw hex string given
789 else if (strcmp(packet_type
,"arp")==0) {
792 else if (strcmp(packet_type
,"bpdu")==0) {
795 else if (strcmp(packet_type
,"ip")==0) {
798 else if (strcmp(packet_type
,"udp")==0) {
801 else if (strcmp(packet_type
,"icmp")==0) {
804 else if (strcmp(packet_type
,"icmp6")==0) {
807 else if (strcmp(packet_type
,"tcp")==0) {
810 else if (strcmp(packet_type
,"dns")==0) {
813 else if (strcmp(packet_type
,"cdp")==0) {
816 else if (strcmp(packet_type
,"syslog")==0) {
819 else if (strcmp(packet_type
, "igmp") == 0) {
822 else if (strcmp(packet_type
,"lldp")==0) {
824 tx
.packet_mode
=0; // create whole frame by ourself
826 else if (strcmp(packet_type
,"rtp")==0) {
832 if (!count_set
) tx
.count
= 0;
833 if (!delay_set
) tx
.delay
= 20000; // 20 msec inter-packet delay for RTP
837 fprintf(stderr
, " mz: you must specify a valid packet type!\n");
841 //////////////////////////////////////////////////////////////////////////
843 // TODO: Implement macro support
844 // Check macro types here
849 int main(int argc
, char **argv
)
851 // These handles are only used when creating L3 and above packets.
852 libnet_t
*l
; // the context
853 libnet_ptag_t t2
=0, t3
=0, t4
=0; // handles to layers
854 double cpu_time_used
;
858 if ( getopts(argc
, argv
) )
860 (void) fprintf(stderr
, " Invalid command line parameters!\n");
864 // Check whether hires timers are supported or not:
865 (void) check_timer();
867 signal(SIGINT
, signal_handler
); // to close all file pointers etc upon SIGINT
887 case IP
: // From now on a new much more modular method is used:
888 l
= get_link_context();
889 t3
= create_ip_packet(l
); // t3 can be used for later header changes
890 if (!quiet
) complexity();
891 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
892 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
894 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
899 l
= get_link_context();
900 t4
= create_icmp_packet(l
); // t4 can be used for later header changes
901 t3
= create_ip_packet(l
); // t3 can be used for later header changes
902 if (!quiet
) complexity();
903 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
904 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
906 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
911 l
= get_link_context();
912 t4
= create_icmp6_packet(l
); // t4 can be used for later header changes
913 t3
= create_ip_packet(l
); // t3 can be used for later header changes
916 if (!quiet
) complexity();
917 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
918 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
920 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
925 l
= get_link_context();
926 t4
= create_udp_packet(l
); // t4 can be used for later header changes
927 t3
= create_ip_packet(l
); // t3 can be used for later header changes
930 if (!quiet
) complexity();
931 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
932 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
934 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
939 l
= get_link_context();
940 t4
= create_tcp_packet(l
); // t4 can be used for later header changes
941 t3
= create_ip_packet(l
); // t3 can be used for later header changes
944 if (!quiet
) complexity();
945 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
946 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
948 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
953 l
= get_link_context();
954 t4
= create_igmp_packet(l
);
955 /* t3 can be used for later header changes */
956 t3
= create_ip_packet(l
);
960 /* Ethernet manipulation features does NOT use ARP to determine eth_dst
962 if (tx
.packet_mode
== 0)
963 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
965 send_frame(l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
970 l
= get_link_context();
971 (void) create_dns_packet();
972 t4
= create_udp_packet(l
); // t4 can be used for later header changes
973 t3
= create_ip_packet(l
); // t3 can be used for later header changes
974 if (!quiet
) complexity();
975 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
976 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
978 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
983 l
= get_link_context();
984 if (!quiet
) fprintf(stderr
, " mz: RTP mode! (count=%u, delay=%u usec)\n\n", tx
.count
, tx
.delay
);
985 (void) create_rtp_packet();
986 t4
= create_udp_packet(l
); // t4 can be used for later header changes
987 t3
= create_ip_packet(l
); // t3 can be used for later header changes
988 if (!quiet
) complexity();
989 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
990 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
992 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
995 case RX_RTP
: // Receive RTP packets
1002 l
= get_link_context();
1003 (void) create_syslog_packet();
1004 t4
= create_udp_packet(l
); // t4 can be used for later header changes
1005 t3
= create_ip_packet(l
); // t3 can be used for later header changes
1006 if (!quiet
) complexity();
1008 if (tx
.packet_mode
==0) // Ethernet manipulation features does NOT use ARP to determine eth_dst
1009 t2
= create_eth_frame(l
, t3
, t4
); // t2 can be used for later header changes
1011 send_frame (l
, t3
, t4
); // NOTE: send_frame also destroys context finaly
1014 case LLDP
: // start with a new concept here
1015 //l = get_link_context();
1016 //(void) create_lldp_packet();
1017 // // // printf("SIZE=%lu\n",sizeof(struct tx_struct));
1018 fprintf(stderr
, "LLDP is currently only supported via the interactive mode\n");
1024 (void) fprintf(stderr
," mz/main: unknown mode! Stop.\n");
1031 cpu_time_used
= ((double) (mz_stop
- mz_start
)) / CLOCKS_PER_SEC
;
1032 if (cpu_time_used
> 0)
1034 total_d
/= cpu_time_used
;
1035 fprintf(stderr
, "%.2f seconds (%.Lf packets per second)\n",cpu_time_used
,total_d
);
1039 fprintf(stderr
, "\n");