/* * Mausezahn - A fast versatile traffic generator * Copyright (C) 2008-2010 Herbert Haas * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU General Public License version 2 as published by the * Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License along with * this program; if not, see http://www.gnu.org/licenses/gpl-2.0.html * */ #include "mz.h" #include "cli.h" #include "mops.h" int debug_packet (struct cli_def *cli, const char *command, char *argv[], int argc) { cli_debug = CLI_DEBUG_PACKET; cli_print (cli, "Packet debugging enabled\n"); return CLI_OK; } // Enter packet config mode: // // 1) either with an optional packet slot number => modify existing slot // 2) or without number to allocate a new slot entry // int enter_packet (struct cli_def *cli, const char *command, char *argv[], int argc) { char prompt[16]; if (argc==0) { // Allocate new packet if ((clipkt = mops_alloc_packet(mp_head)) == NULL) { // Problem, memory full? cli_print(cli, "Holy flying spaghetti monster! Cannot allocate additional memory!\n"); return CLI_OK; } // OK, created a new packet snprintf(prompt, 16, "pkt-%i",clipkt->id); cli_print(cli, "Allocated new packet %s at slot %i",clipkt->packet_name, clipkt->id); // mops_set_defaults(clipkt); //// implicitly done by mops_alloc_packet } else if ( (strcmp(argv[argc-1],"?")==0) || (argc>1) ) { cli_print(cli, " create a new packet slot\r"); cli_print(cli, "NAME enter packet slot of packet with name NAME\r"); cli_print(cli, "ID enter packet slot of packet with number ID\n"); return CLI_OK; } else { // user specified a unique packet_name if ( (clipkt = mops_search_name (mp_head, argv[0]))==NULL) { // packet name does not exist if ( (clipkt = mops_search_id (mp_head, (int) str2int(argv[0])))==NULL) { // packet id does not exist cli_print(cli, "Packet does not exist\n"); return CLI_OK; } } if (mops_is_any_active(clipkt)) { // don't allow to configure packets which are active! cli_print(cli, "The selected packet is currently in active state!\r"); cli_print(cli, "In order to configure this packet, please stop the associated packet process first.\n"); return CLI_OK; } snprintf(prompt, 16, "pkt-%i",clipkt->id); cli_print(cli, "Modify packet parameters for packet %s [%i]",clipkt->packet_name, clipkt->id); } cli_set_configmode(cli, MZ_MODE_PACKET, prompt); //cli_print(cli, "Packet configuration mode - called %s with %s\r\n", __FUNCTION__, command); return CLI_OK; } // Specify the type and enter the appropriate configuration mode // NOTE that we also reset and create the p_desc here! int cmd_packet_type(struct cli_def *cli, const char *command, char *argv[], int argc) { char prompt[16]; int ret=0; char wrn[] = "Error: Could not create mops extension handle\n"; if ( (strcmp(argv[argc-1],"?")==0) || (argc!=1) ) { cli_print(cli, "Specify a packet type from the following list:\r\n"); cli_print(cli, " arp\r"); cli_print(cli, " bpdu\r"); // cli_print(cli, " cdp (not supported in this version)\r"); // cli_print(cli, " icmp (not supported in this version)\r"); cli_print(cli, " igmp\r"); cli_print(cli, " ip\r"); cli_print(cli, " lldp\r"); cli_print(cli, " rtp\r"); // cli_print(cli, " syslog (not supported in this version)\r"); cli_print(cli, " tcp\r"); cli_print(cli, " udp\r"); return CLI_OK; } if (mz_strcmp(argv[0],"arp",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_ARP)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_MPLS|MOPS_IP|MOPS_UDP|MOPS_TCP); clipkt->use_ETHER = 1; clipkt->eth_type = 0x806; sprintf(prompt, "pkt-%i-arp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_ARP, prompt); mops_update_arp(clipkt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"dns",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_DNS)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_TCP); clipkt->use_ETHER = 1; clipkt->use_IP= 1; clipkt->use_UDP= 1; sprintf(prompt, "pkt-%i-dns",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_DNS, prompt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"icmp",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_ICMP)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_TCP|MOPS_UDP); clipkt->use_ETHER = 1; clipkt->use_IP= 1; sprintf(prompt, "pkt-%i-icmp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_ICMP, prompt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"igmp",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_IGMP)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_TCP|MOPS_UDP); clipkt->use_ETHER = 1; clipkt->use_IP= 1; clipkt->ip_proto = 2; mops_ip_option_ra(clipkt, 0); // add router alert option to IP header sprintf(prompt, "pkt-%i-igmp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_IGMP, prompt); mops_update_igmp(clipkt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"cdp",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_CDP)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_ALL); clipkt->use_ETHER = 1; sprintf(prompt, "pkt-%i-cdp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_CDP, prompt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"bpdu",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_BPDU)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_MPLS|MOPS_IP|MOPS_UDP|MOPS_TCP); clipkt->use_ETHER = 1; clipkt->use_SNAP = 1; sprintf(prompt, "pkt-%i-bpdu",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_BPDU, prompt); mops_update_bpdu(clipkt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"ip",2) == 0) { ret=mops_clear_layers(clipkt, MOPS_TCP|MOPS_UDP); clipkt->use_ETHER = 1; clipkt->use_IP = 1; sprintf(prompt, "pkt-%i-ip",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_IP, prompt); mops_set_conf(clipkt); } else if (mz_strcmp(argv[0],"udp",3) == 0) { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_TCP); clipkt->use_ETHER = 1; clipkt->use_IP = 1; clipkt->use_UDP = 1; clipkt->ip_proto = 17; sprintf(prompt, "pkt-%i-udp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_UDP, prompt); mops_set_conf(clipkt); } else if (mz_strcmp(argv[0],"tcp",3) == 0) { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_UDP); clipkt->use_ETHER = 1; clipkt->use_IP = 1; clipkt->use_TCP = 1; clipkt->ip_proto = 6; sprintf(prompt, "pkt-%i-tcp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_TCP, prompt); mops_set_conf(clipkt); } else if (mz_strcmp(argv[0],"syslog",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_SYSLOG)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_TCP); clipkt->use_ETHER = 1; clipkt->use_IP = 1; clipkt->use_UDP = 1; sprintf(prompt, "pkt-%i-syslog",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_SYSLOG, prompt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"lldp",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_LLDP)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_IP|MOPS_UDP|MOPS_TCP); clipkt->use_ETHER = 1; sprintf(prompt, "pkt-%i-lldp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_LLDP, prompt); mops_set_conf(clipkt); } } else if (mz_strcmp(argv[0],"rtp",3) == 0) { if (mops_ext_add_pdesc (clipkt, MOPS_RTP)) cli_print(cli, "%s", wrn); else { ret=mops_clear_layers(clipkt, MOPS_SNAP|MOPS_TCP); clipkt->use_ETHER = 1; clipkt->use_IP = 1; clipkt->use_UDP = 1; sprintf(prompt, "pkt-%i-rtp",clipkt->id); cli_set_configmode(cli, MZ_MODE_PACKET_RTP, prompt); mops_set_conf(clipkt); } } else // wrong user input { cli_print(cli, "Unknown type\n"); return CLI_OK; } if (ret) { cli_print(cli, "Note that the following layer(2) have configured information:\r"); if (ret & 1) cli_print(cli, " - Ethernet or 802.3\r"); if (ret & 2) cli_print(cli, " - SNAP\r"); if (ret & 4) cli_print(cli, " - 802.1Q\r"); if (ret & 8) cli_print(cli, " - MPLS\r"); if (ret & 16) cli_print(cli, " - IP\r"); if (ret & 32) cli_print(cli, " - UDP\r"); if (ret & 64) cli_print(cli, " - TCP\r"); } mops_update(clipkt); return CLI_OK; } int cmd_packet_end(struct cli_def *cli, const char *command, char *argv[], int argc) { cli_set_configmode(cli, MODE_CONFIG, NULL); return CLI_OK; } int cmd_packet_clone (struct cli_def *cli, const char *command, char *argv[], int argc) { // TODO return CLI_OK; } // Reserved words: "all", "slot" int cmd_packet_name (struct cli_def *cli, const char *command, char *argv[], int argc) { if (strncmp(argv[0], "?", 2) == 0) { cli_print(cli, "Assign a packet name (max 16 chars)\n"); return CLI_OK; } if (argc>1) { cli_print(cli, "Packet name must not contain spaces\n"); return CLI_OK; } if (strlen(argv[0])>MAX_MOPS_PACKET_NAME_LEN) { cli_print(cli, "Packet name is limited to %i chars. You might use the 'description' command.\n",MAX_MOPS_PACKET_NAME_LEN); return CLI_OK; } if (mz_strcmp(argv[0], "all", 3)==0) { cli_print(cli, "This is a reserved word. Please choose another\n"); return CLI_OK; } strncpy(clipkt->packet_name, argv[0], MAX_MOPS_PACKET_NAME_LEN); clipkt->packet_name[MAX_MOPS_PACKET_NAME_LEN-1] = 0x00; // cli_print(cli, "Changed packet name to '%s'\n", clipkt->packet_name); return CLI_OK; } int cmd_packet_description (struct cli_def *cli, const char *command, char *argv[], int argc) { if (strncmp(argv[argc-1], "?", 2) == 0) { cli_print(cli, "Assign a packet description (max %i chars)\n", MAX_MOPS_DESCRIPTION_LEN); return CLI_OK; } if (mops_pdesc_mstrings (clipkt->description, argv, argc, MAX_MOPS_DESCRIPTION_LEN)) { cli_print(cli, "String too long. Currently the description is limited to %i characters.\n", MAX_MOPS_DESCRIPTION_LEN); cli_print(cli, "Current description is:\n%s\n", clipkt->description); } return CLI_OK; } int cmd_packet_count (struct cli_def *cli, const char *command, char *argv[], int argc) { if (strncmp(argv[argc-1], "?", 2) == 0) { cli_print(cli,"Specify the packet count. Zero means infinity.\n"); return CLI_OK; } else if (argc) { clipkt->count = (unsigned long) str2int(argv[0]); if (clipkt->count) { clipkt->cntx = clipkt->count; // count is finite: cntx will count down } else { clipkt->cntx = 0; // infinity: cntx will count up } return CLI_OK; } cli_print(cli,"Specify a packet count.\n"); return CLI_OK; } int cmd_packet_delay (struct cli_def *cli, const char *command, char *argv[], int argc) { int ret=0; char str[100]; if (strncmp(argv[argc-1], "?", 2) == 0) { cli_print(cli, "delay [hour | min | sec | msec | usec | nsec]\n"); cli_print(cli, "Specify the inter-packet delay in hours, minutes, seconds, milliseconds, microseconds,\r"); cli_print(cli, "or nanoseconds. The default unit is milliseconds (i. e. when no unit is given).\n"); return CLI_OK; } switch (argc) { case 1: // only one argument, but may contain an unit (such as '314sec') ret = delay_parse(&clipkt->ndelay, argv[0], NULL); break; case 2: // user specified two arguments such as '100 msec' ret = delay_parse(&clipkt->ndelay, argv[0], argv[1]); break; default: cli_print(cli, "Too many arguments! Expected delay value and unit, such as '10 msec'\n"); return CLI_OK; } switch (ret) { case 1: cli_print(cli, "Invalid unit! Use one of {nsec, usec, msec, sec, min, hours}\n"); return CLI_OK; break; case 2: cli_print(cli, "Value too large! Supported range is from 0 to 999999999\n"); return CLI_OK; break; } sprintf(str, "Inter-packet delay set to %lu sec and %lu nsec", clipkt->ndelay.tv_sec, clipkt->ndelay.tv_nsec); cli_print(cli, "%s\n", str); return CLI_OK; } int cmd_packet_bind (struct cli_def *cli, const char *command, char *argv[], int argc) { int i; if (strncmp(argv[argc-1], "?", 2) == 0) { cli_print(cli," Change the packet's network interface\r"); cli_print(cli,"default Use interface settings as packet default\n"); return CLI_OK; } else if (argc) { if (mz_strcmp(argv[0], "default", 3)==0) { i = mops_get_device_index(clipkt->device); // Copy device_list[i].ip_mops and .mac_mops to clipkt->ip_src and ->eth_src memcpy((void *) &clipkt->eth_src, (void *) &device_list[i].mac_mops[0], 6); memcpy((void *) &clipkt->ip_src, (void *) &device_list[i].ip_mops[0], 4); } else { i = mops_get_device_index(argv[0]); if (i != -1) { strncpy(clipkt->device, argv[0], 16); // assign device to this mops mops_use_device(clipkt, i); } else cli_print(cli, "Unknown device, will stick on %s\n", clipkt->device); } } else cli_print(cli, "Nothing specified, will stick on %s\n", clipkt->device); return CLI_OK; } // FORMAT: : such as: "100:3 17:5 ..." // NOTE: LEFTMOST TAG = OUTER TAG IN FRAME // CFI is set/unset separately (see ? below) // Transmission format: 0x8100 plus CoS (3) CFI(1) VLAN(12) int cmd_packet_dot1q (struct cli_def *cli, const char *command, char *argv[], int argc) { int i, j, k=0; int n; char Vlan[64], CoS[64]; u_int16_t v,c; if (strcmp(argv[argc-1],"?")==0) { cli_print(cli, "Configure 802.1Q tags:\n"); cli_print(cli, " VLAN[:CoS] [VLAN[:CoS]] ... The leftmost tag is the outer tag in the frame\r"); cli_print(cli, " remove | all Remove one or more tags ( starts with 1),\r"); cli_print(cli, " by default the first (=leftmost,outer) tag is removed,\r"); cli_print(cli, " keyword 'all' can be used instead of tag numbers.\r"); cli_print(cli, " cfi | nocfi [] Set or unset the CFI-bit in any tag (by default\r"); cli_print(cli, " assuming the first tag).\n"); return CLI_OK; } if (argc==0) { cli_print(cli, "Specify one or more VLAN-IDs, optionally with CoS values\n"); return CLI_OK; } n = clipkt->dot1Q_s/4; // n = number of tags ////////////////////////////////////////// if (mz_strcmp(argv[0], "remove", 2)==0) { if (argc>2) { cli_print(cli, "Too many arguments!\n"); return CLI_OK; } if (n==0) { cli_print(cli, "No 802.1Q tags present. None to be removed.\n"); return CLI_OK; } if ((argc==2) && (mz_strcmp(argv[1], "all", 1)==0)) { mops_dot1Q_remove(clipkt, 0); return CLI_OK; } if (argc==1) // no tag-nr specified => assume first tag { j=1; } else { j = (unsigned int) str2int(argv[1]); // take first argument if (j==0) { cli_print(cli, "The tag-nr must be within {1..%i}\n", n); return CLI_OK; } } // now remove tag if (mops_dot1Q_remove(clipkt, j)) { cli_print(cli, "The packet only consists of %i tag(s)!\n", n); } return CLI_OK; } ///////////////////////////////////////// if (mz_strcmp(argv[0], "nocfi", 2)==0) { if (n==0) { cli_print(cli, "There are no 802.1Q tags yet!\n"); return CLI_OK; } if (argc>2) { cli_print(cli, "Invalid format!\n"); return CLI_OK; } if (argc==1) // no tag-nr specified => assume first tag { j=1; } else { j = (unsigned int) str2int(argv[1]); } if (mops_dot1Q_nocfi(clipkt, j)) { cli_print(cli, "The packet only consists of %i tags!\n",k); } return CLI_OK; } /////////////////////////////////////// if (mz_strcmp(argv[0], "cfi", 2)==0) { if (n==0) { cli_print(cli, "There are no 802.1Q tags yet!\n"); return CLI_OK; } if (argc>2) { cli_print(cli, "Invalid format!\n"); return CLI_OK; } if (argc==1) // no tag-nr specified => assume first tag { j=1; } else { j = (unsigned int) str2int(argv[1]); } if (mops_dot1Q_cfi(clipkt, j)) { cli_print(cli, "The packet only consists of %i tags!\n",k); } return CLI_OK; } ///////////////////////// for (i=0; i4095) { cli_print(cli, "[tag %i] VLAN number must not exceed 4095.\n", i+1); return CLI_OK; } } if (CoS[0]==0x00) { c=0; } else { c = (u_int16_t) str2int(CoS); if (c>7) { cli_print(cli, "[tag %i] CoS must not exceed 7.\n", i+1); return CLI_OK; } } mops_dot1Q (clipkt, i, 1, v, c); // 3rd param '1' means 'new stack, also set dot1Q_s' } return CLI_OK; } // MPLS transmission format: Label(20) EXP(3) BoS(1) TTL(8) // -- where BoS=0 indicate MORE labels, BoS=1 means last (bottom) label // // NOTE: The EtherType must be 0x8847 which identifies 'IP over MPLS' that is // we do NOT need to set 0x800 for IP somewhere! Instead, mops_update() // will always correctly set the single EtherType, if necessary after // 802.1Q tags. For example when VLAN tags are present, the frame looks // like this:----------------------------------vvvv----------------------- // DMAC-SMAC-8100VLAN1-...-8100VLANn-EtherType(8847)-MPLS1-...-MPLSn-IP... // // MPLS Multicast packets are indicated by EtherType 8848 (!) // See also RFC 5332 which allows both 'Codepoints' to carry MPLS multicast // while 0x8848 only indicates multiaccess media. // // NOTE: If all MPLS labels are removed again, the original EtherType is restored again! // The original EtherType is stored in mp->eth_type_backup int cmd_packet_mpls (struct cli_def *cli, const char *command, char *argv[], int argc) { int a=0,i,j=0,k; char LabelS[64], ExpS[64], TTLS[64]; u_int32_t Label; u_int8_t Exp; u_int8_t TTL; if ( (strcmp(argv[argc-1],"?")==0) || (argc==0) ) { cli_print(cli, "Configure one or more MPLS labels:\r"); cli_print(cli, " LABEL[:EXP[:TTL]] [LABEL[:EXP[:TTL]]] ... The leftmost tag is the outer tag in frame\r"); cli_print(cli, " remove | all Remove tag with number (starts with 1) or all.\r"); cli_print(cli, " bos | nobos [] Set/unset BoS flag, by default in last (rightmost) label\r"); cli_print(cli, " unicast|multicast Choose EtherType 0x8847 or 0x8848 respectively\n"); cli_print(cli, "Examples:\r"); cli_print(cli, " tag mpls 100 200 300 Specify three tags, 100,200,300 \r"); cli_print(cli, " tag mpls 100:5 200:5:1 Let first tag have CoS 5, second tag additionally uses TTL=1\r"); cli_print(cli, " tag mpls 100::8 Let first tag have TTL=8\n"); cli_print(cli, "Reserved label numbers:\r"); cli_print(cli, " 0 ... explicit NULL (IPv4)\r"); cli_print(cli, " 1 ... Router Alert\r"); cli_print(cli, " 2 ... explicit NULL (IPv6)\r"); cli_print(cli, " 3 ... implicit NULL (only announced within LDP)\r"); cli_print(cli, " 14 ... OAM Alert (ITU-T Y.1711, RFC 3429)\n"); return CLI_OK; } /////////////////////////////////////////// if (mz_strcmp(argv[0], "unicast", 2)==0) { if (clipkt->use_MPLS==0) { cli_print(cli, "First configure an MPLS label stack."); return CLI_OK; } if (argc>1) { cli_print(cli, "This command does not support any argument.\n"); } clipkt->eth_type = 0x8847; return CLI_OK; } ///////////////////////////////////////////// if (mz_strcmp(argv[0], "multicast", 2)==0) { if (clipkt->use_MPLS==0) { cli_print(cli, "First configure an MPLS label stack."); return CLI_OK; } if (argc>1) { cli_print(cli, "This command does not support any argument.\n"); } clipkt->eth_type = 0x8848; return CLI_OK; } k = clipkt->mpls_s/4; // number of available tags ////////////////////////////////////////// if (mz_strcmp(argv[0], "remove", 2)==0) { if (argc>2) { cli_print(cli, "Too many arguments!\n"); return CLI_OK; } if ((argc==2) && (mz_strcmp(argv[1], "all", 1)==0)) { if (mops_mpls_remove(clipkt, 0)) cli_print(cli, "No MPLS label stack present. Nothing removed\n"); return CLI_OK; } if (argc==1) // no tag-nr specified => assume first tag { if (k==0) cli_print(cli, "Currently the packet has no tag that can be removed.\n"); else j=1; } else { j = (unsigned int) str2int(argv[1]); // take first argument } if (mops_mpls_remove(clipkt, j)) cli_print(cli, "The tag number must be within 1..%i\n",k); return CLI_OK; } /////////////////////////////////////// if (mz_strcmp(argv[0], "bos", 2)==0) { if (argc>2) { cli_print(cli, "Too many arguments\n"); return CLI_OK; } if (argc==2) { i = (int) str2int(argv[1]); if (i>k) { cli_print(cli, "Tag number exceeds actual number of tags (%i)\n",a); return CLI_OK; } } else // argc==1 (no tag number specified) { i = k; // default: last tag! } mops_mpls_bos (clipkt, i); return CLI_OK; } if (mz_strcmp(argv[0], "nobos", 2)==0) { if (argc>2) { cli_print(cli, "Too many arguments\n"); return CLI_OK; } if (argc==2) { i = (int) str2int(argv[1]); if (i>k) { cli_print(cli, "Tag number exceeds actual number of tags (%i)\n",k); return CLI_OK; } } else // argc==1 (no tag number specified) { i = k; // default: last tag! } mops_mpls_nobos (clipkt, i); return CLI_OK; } //////////////////////////////////////////// for (i=0;i 1048575) { cli_print(cli, "[Tag %i] Label value cannot exceed 1048575\n", i+1); return CLI_OK; } } // Get EXP if (ExpS[0]==0x00) { Exp=0; } else { Exp = (u_int8_t) str2int(ExpS); if (Exp>7) { cli_print(cli, "[Tag %i] EXP value must be within range 0..7\n", i+1); return CLI_OK; } } // Get TTL if (TTLS[0]==0x00) { TTL=255; } else { if (str2int(TTLS)>255) { cli_print(cli, "[Tag%i] TTL value must be within range 0..255\n", i+1); return CLI_OK; } TTL = (u_int8_t) str2int(TTLS); } // Now add MPLS tag: mops_mpls(clipkt, i, argc, Label, Exp, TTL); } return CLI_OK; } // SYNTAX: // // payload hex ff:00:01:02:aa:bb:cc:dd aa:bb:cc // payload hex file tmp/dump.dat // int cmd_packet_payload_hex (struct cli_def *cli, const char *command, char *argv[], int argc) { char str[MAX_MOPS_MSG_SIZE*3]; int len, i; if (strncmp(argv[argc-1], "?", 2)==0) { cli_print(cli, "Specify a payload in hexadecimal format:\n"); cli_print(cli, " XX:XX:XX:... Either directly as sequence of digits, separated by colon or space\r"); cli_print(cli, " file Or specify a filename with hexadecimal digits as content\r"); cli_print(cli, " (Also in the file the separator can be either a colon or a space)\n"); cli_print(cli, "Example: \r"); cli_print(cli, "payload hex ff:ff:ff:ff:ff:ff 00:12:34:56:67:89 08:00 ca:fe:ba:be\n"); return CLI_OK; } if (argc==0) { cli_print(cli, "Specify an ascii payload\n"); return CLI_OK; } if (mz_strcmp(argv[0],"file", 2)==0) { // > > > > > ******* TODO: Open file and configure mops with filepointer ******** < < < < < < < < cli_print(cli, "This feature is currently not supported.\n"); return CLI_OK; } // Get byte sequence - first copy into str if (mops_pdesc_mstrings (str, argv, argc, MAX_MOPS_MSG_SIZE*3)) { cli_print(cli, "Payload too long (limited to %i bytes).\n", MAX_MOPS_MSG_SIZE); } else // str contains byte sequence now - convert into msg and set msg_s { len = strlen(str); for (i=0; imsg, MAX_MOPS_MSG_SIZE); if (len==-1) { cli_print(cli, "Invalid byte sequence. Each byte must be specified with two hexadecimal digits.\n"); return CLI_OK; } clipkt->msg_s = (u_int32_t) len; } return CLI_OK; } int cmd_packet_payload_ascii (struct cli_def *cli, const char *command, char *argv[], int argc) { char str[MAX_MOPS_MSG_SIZE*3]; int len, i; if (strncmp(argv[argc-1], "?", 2)==0) { cli_print(cli, "Specify a payload in ascii format.\r"); cli_print(cli, "Note that multiple white spaces are replaced by a single white space. If you\r"); cli_print(cli, "really want to specify multiple white spaces then use a dash '-' instead of\r"); cli_print(cli, "a white space. If you want to specify a dash then use a caret '^' as escape\r"); cli_print(cli, "character.\n"); return CLI_OK; } if (argc==0) { cli_print(cli, "Specify an ascii payload\n"); return CLI_OK; } if (mz_strcmp(argv[0],"file", 2)==0) { // > > > > > ******* TODO: Open file and configure mops with filepointer ******** < < < < < < < < cli_print(cli, "This feature is currently not supported.\n"); return CLI_OK; } // Get byte sequence - first copy into str if (mops_pdesc_mstrings (str, argv, argc, MAX_MOPS_MSG_SIZE)) { cli_print(cli, "Payload too long (limited to %i bytes).\n", MAX_MOPS_MSG_SIZE); } else // str contains byte sequence now - convert into msg and set msg_s { len = strlen(str); for (i=0; i0) && (str[i-1]=='^')) { memcpy((void*) &str[i-1], (void*) &str[i], len-i+1); i--; len--; } else { str[i]=' '; } } } len--; // to eliminate the trailing space (created by mops_pdesc_mstring) memcpy((void*) clipkt->msg, (void*) str, len); clipkt->msg_s = len; } return CLI_OK; } int cmd_packet_payload_raw (struct cli_def *cli, const char *command, char *argv[], int argc) { return CLI_OK; } int cmd_packet_interval (struct cli_def *cli, const char *command, char *argv[], int argc) { unsigned long long iv, tv_sec=0; if (strncmp(argv[argc-1], "?", 1)==0) { cli_print(cli, "Configure a greater packet interval in days, hours, minutes, or seconds\n"); cli_print(cli, "Arguments: \n"); cli_print(cli, "Use a zero value to disable an interval.\n"); return CLI_OK; } if (argc!=2) { cli_print(cli,"Enter a value and an unit\n"); return CLI_OK; } if (mz_strisnum(argv[0])==0) { cli_print(cli,"Invalid value\n"); return CLI_OK; } iv = str2lint(argv[0]); if (iv==0) { cli_print(cli,"Interval disabled.\n"); clipkt->interval_used = 0; return CLI_OK; } if (mz_strcmp(argv[1], "days", 1)==0) { if (iv>365) { cli_print(cli, "Supported range: 1..365 days\n"); return CLI_OK; } tv_sec = 86400 * iv; } if (mz_strcmp(argv[1], "hours", 1)==0) { if (iv>1000) { cli_print(cli, "Supported range: 1..1000 hours\n"); return CLI_OK; } tv_sec = 3600 * iv; } if (mz_strcmp(argv[1], "minutes", 1)==0) { if (iv>1000) { cli_print(cli, "Supported range: 1..1000 minutes\n"); return CLI_OK; } tv_sec = 60 * iv; } if (mz_strcmp(argv[1], "seconds", 1)==0) { if (iv>999999) { cli_print(cli, "Supported range: 1..999999 seconds\n"); return CLI_OK; } tv_sec = iv; } if (clipkt->count==0) { cli_print(cli, "Note: reconfigured count value from 0 (infinity) to 1.\n"); clipkt->count=1; } if ((clipkt->count * clipkt->ndelay.tv_sec)>tv_sec) { cli_print(cli, "Error: intervals are smaller than packet trains.\r"); cli_print(cli, "Reduce either count or delay, or both\n"); return CLI_OK; } clipkt->interval.tv_sec = tv_sec; clipkt->interval_used = 1; return CLI_OK; }