tests/check_lldp.c

   1 #define _GNU_SOURCE 1
   2 #include <stdlib.h>
   3 #include <stdio.h>
   4 #include <unistd.h>
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <fcntl.h>
   8 #include <time.h>
   9 #include <check.h>
  10 #include "../src/lldpd.h"
  11
  12 int dump = -1;
  13 char *filename = NULL;
  14 struct packet {
  15         TAILQ_ENTRY(packet) next;
  16         int size;
  17         char data[];
  18 };
  19 TAILQ_HEAD(, packet) pkts;
  20 char *buffer[] = { NULL };
  21 char macaddress[ETH_ALEN] = { 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad };
  22 struct lldpd_hardware hardware;
  23 struct lldpd_chassis chassis;
  24
  25 /* See:
  26  * http://wiki.wireshark.org/Development/LibpcapFileFormat
  27  */
  28 struct pcap_hdr {
  29         u_int32_t magic_number;   /* magic number */
  30         u_int16_t version_major;  /* major version number */
  31         u_int16_t version_minor;  /* minor version number */
  32         u_int32_t thiszone;       /* GMT to local correction */
  33         u_int32_t sigfigs;        /* accuracy of timestamps */
  34         u_int32_t snaplen;        /* max length of captured packets, in octets */
  35         u_int32_t network;        /* data link type */
  36 };
  37 struct pcaprec_hdr {
  38         u_int32_t ts_sec;         /* timestamp seconds */
  39         u_int32_t ts_usec;        /* timestamp microseconds */
  40         u_int32_t incl_len;       /* number of octets of packet saved in file */
  41         u_int32_t orig_len;       /* actual length of packet */
  42 };
  43
  44 int
  45 pcap_send(struct lldpd *cfg, struct lldpd_hardware *hardware,
  46     char *buffer, size_t size)
  47 {
  48         struct pcaprec_hdr hdr;
  49         struct packet *pkt;
  50         int n;
  51
  52         /* Write pcap record header */
  53         hdr.ts_sec = time(NULL);
  54         hdr.ts_usec = 0;
  55         hdr.incl_len = hdr.orig_len = size;
  56         n = write(dump, &hdr, sizeof(hdr));
  57         fail_unless(n != -1, "unable to write pcap record header to %s", filename);
  58
  59         /* Write data */
  60         n = write(dump, buffer, size);
  61         fail_unless(n != -1, "unable to write pcap data to %s", filename);
  62
  63         /* Append to list of packets */
  64         pkt = (struct packet *)malloc(size + sizeof(TAILQ_HEAD(,packet)) + sizeof(int));
  65         fail_unless(pkt != NULL);
  66         memcpy(pkt->data, buffer, size);
  67         pkt->size = size;
  68         TAILQ_INSERT_TAIL(&pkts, pkt, next);
  69         return 0;
  70 }
  71
  72 struct lldpd_ops fake_ops = {
  73         .send = pcap_send,
  74         .recv = NULL,           /* Won't be used */
  75         .cleanup = NULL,        /* Won't be used */
  76 };
  77
  78
  79 void
  80 setup()
  81 {
  82         static int serial = 0;
  83         struct pcap_hdr hdr;
  84         int n;
  85         /* Prepare packet buffer */
  86         TAILQ_INIT(&pkts);
  87         /* Open a new dump file */
  88         n = asprintf(&filename, "lldp_send_%04d.pcap", serial++);
  89         fail_unless(n != -1, "unable to compute filename");
  90         dump = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
  91         fail_unless(dump != -1);
  92         /* Write a PCAP header */
  93         hdr.magic_number = 0xa1b2c3d4;
  94         hdr.version_major = 2;
  95         hdr.version_minor = 4;
  96         hdr.thiszone = 0;
  97         hdr.sigfigs = 0;
  98         hdr.snaplen = 65535;
  99         hdr.network = 1;
 100         n = write(dump, &hdr, sizeof(hdr));
 101         fail_unless(n != -1, "unable to write pcap header to %s", filename);
 102         /* Prepare hardware */
 103         memset(&hardware, 0, sizeof(struct lldpd_hardware));
 104         TAILQ_INIT(&hardware.h_rports);
 105         TAILQ_INIT(&hardware.h_lport.p_vlans);
 106         hardware.h_mtu = 1500;
 107         hardware.h_ifindex = 1;
 108         strcpy(hardware.h_ifname, "test");
 109         memcpy(hardware.h_lladdr, macaddress, ETH_ALEN);
 110         hardware.h_ops = &fake_ops;
 111         /* Prepare chassis */
 112         memset(&chassis, 0, sizeof(struct lldpd_chassis));
 113         hardware.h_lport.p_chassis = &chassis;
 114         chassis.c_ttl = 180;
 115 }
 116
 117 void
 118 teardown()
 119 {
 120         struct packet *npkt, *pkt;
 121         for (pkt = TAILQ_FIRST(&pkts);
 122             pkt != NULL;
 123             pkt = npkt) {
 124                 npkt = TAILQ_NEXT(pkt, next);
 125                 TAILQ_REMOVE(&pkts, pkt, next);
 126                 free(pkt);
 127         }
 128         if (dump != -1) {
 129                 close(dump);
 130                 dump = -1;
 131         }
 132         if (filename) {
 133                 free(filename);
 134                 filename = NULL;
 135         }
 136 }
 137
 138 START_TEST (test_send_basic)
 139 {
 140         int n;
 141         /* Packet we should build:
 142 Ethernet II, Src: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad), Dst: LLDP_Multicast (01:80:c2:00:00:0e)
 143     Destination: LLDP_Multicast (01:80:c2:00:00:0e)
 144     Source: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 145     Type: 802.1 Link Layer Discovery Protocol (LLDP) (0x88cc)
 146 Link Layer Discovery Protocol
 147     Chassis Subtype = MAC address
 148         0000 001. .... .... = TLV Type: Chassis Id (1)
 149         .... ...0 0000 0111 = TLV Length: 7
 150         Chassis Id Subtype: MAC address (4)
 151         Chassis Id: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 152     Port Subtype = Interface name
 153         0000 010. .... .... = TLV Type: Port Id (2)
 154         .... ...0 0001 0001 = TLV Length: 17
 155         Port Id Subtype: Interface name (5)
 156         Port Id: FastEthernet 1/5
 157     Time To Live = 180 sec
 158         0000 011. .... .... = TLV Type: Time to Live (3)
 159         .... ...0 0000 0010 = TLV Length: 2
 160         Seconds: 180
 161     System Name = First chassis
 162         0000 101. .... .... = TLV Type: System Name (5)
 163         .... ...0 0000 1101 = TLV Length: 13
 164         System Name = First chassis
 165     System Description = Chassis description
 166         0000 110. .... .... = TLV Type: System Description (6)
 167         .... ...0 0001 0011 = TLV Length: 19
 168         System Description = Chassis description
 169     Capabilities
 170         0000 111. .... .... = TLV Type: System Capabilities (7)
 171         .... ...0 0000 0100 = TLV Length: 4
 172         Capabilities: 0x0010
 173             .... .... ...1 .... = Router
 174         Enabled Capabilities: 0x0010
 175             .... .... ...1 .... = Router
 176     Port Description = Fake port description
 177         0000 100. .... .... = TLV Type: Port Description (4)
 178         .... ...0 0001 0101 = TLV Length: 21
 179         Port Description: Fake port description
 180     IEEE 802.3 - Link Aggregation
 181         1111 111. .... .... = TLV Type: Organization Specific (127)
 182         .... ...0 0000 1001 = TLV Length: 9
 183         Organization Unique Code: IEEE 802.3 (0x00120f)
 184         IEEE 802.3 Subtype: Link Aggregation (0x03)
 185         Aggregation Status: 0x01
 186             .... ...1 = Aggregation Capability: Yes
 187             .... ..0. = Aggregation Status: Not Enabled
 188         Aggregated Port Id: 0
 189     IEEE 802.3 - MAC/PHY Configuration/Status
 190         1111 111. .... .... = TLV Type: Organization Specific (127)
 191         .... ...0 0000 1001 = TLV Length: 9
 192         Organization Unique Code: IEEE 802.3 (0x00120f)
 193         IEEE 802.3 Subtype: MAC/PHY Configuration/Status (0x01)
 194         Auto-Negotiation Support/Status: 0x00
 195             .... ...0 = Auto-Negotiation: Not Supported
 196             .... ..0. = Auto-Negotiation: Not Enabled
 197         PMD Auto-Negotiation Advertised Capability: 0x0000
 198         Operational MAU Type: Unknown (0x0000)
 199     IEEE 802.3 - Maximum Frame Size
 200         1111 111. .... .... = TLV Type: Organization Specific (127)
 201         .... ...0 0000 0110 = TLV Length: 6
 202         Organization Unique Code: IEEE 802.3 (0x00120f)
 203         IEEE 802.3 Subtype: Maximum Frame Size (0x04)
 204         Maximum Frame Size: 1516
 205     End of LLDPDU
 206         0000 000. .... .... = TLV Type: End of LLDPDU (0)
 207         .... ...0 0000 0000 = TLV Length: 0
 208         */
 209         char pkt1[] = {
 210                 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e, 0x5e, 0x10,
 211                 0x8e, 0xe7, 0x84, 0xad, 0x88, 0xcc, 0x02, 0x07,
 212                 0x04, 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad, 0x04,
 213                 0x11, 0x05, 0x46, 0x61, 0x73, 0x74, 0x45, 0x74,
 214                 0x68, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x31,
 215                 0x2f, 0x35, 0x06, 0x02, 0x00, 0xb4, 0x0a, 0x0d,
 216                 0x46, 0x69, 0x72, 0x73, 0x74, 0x20, 0x63, 0x68,
 217                 0x61, 0x73, 0x73, 0x69, 0x73, 0x0c, 0x13, 0x43,
 218                 0x68, 0x61, 0x73, 0x73, 0x69, 0x73, 0x20, 0x64,
 219                 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, 0x69,
 220                 0x6f, 0x6e, 0x0e, 0x04, 0x00, 0x10, 0x00, 0x10,
 221                 0x08, 0x15, 0x46, 0x61, 0x6b, 0x65, 0x20, 0x70,
 222                 0x6f, 0x72, 0x74, 0x20, 0x64, 0x65, 0x73, 0x63,
 223                 0x72, 0x69, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0xfe,
 224                 0x09, 0x00, 0x12, 0x0f, 0x03, 0x01, 0x00, 0x00,
 225                 0x00, 0x00, 0xfe, 0x09, 0x00, 0x12, 0x0f, 0x01,
 226                 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x06, 0x00,
 227                 0x12, 0x0f, 0x04, 0x05, 0xec, 0x00, 0x00 };
 228         struct packet *pkt;
 229
 230         /* Populate port and chassis */
 231         hardware.h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
 232         hardware.h_lport.p_id = "FastEthernet 1/5";
 233         hardware.h_lport.p_id_len = strlen(hardware.h_lport.p_id);
 234         hardware.h_lport.p_descr = "Fake port description";
 235         hardware.h_lport.p_mfs = 1516;
 236         chassis.c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
 237         chassis.c_id = macaddress;
 238         chassis.c_id_len = ETH_ALEN;
 239         chassis.c_name = "First chassis";
 240         chassis.c_descr = "Chassis description";
 241         chassis.c_cap_available = chassis.c_cap_enabled = LLDP_CAP_ROUTER;
 242
 243         /* Build packet */
 244         n = lldp_send(NULL, &hardware);
 245         fail_unless(n == 0, "unable to build packet");
 246         fail_unless(!TAILQ_EMPTY(&pkts));
 247         pkt = TAILQ_FIRST(&pkts);
 248         ck_assert_int_eq(pkt->size, sizeof(pkt1));
 249         fail_unless(memcmp(pkt->data, pkt1, sizeof(pkt1)) == 0);
 250         fail_unless(TAILQ_NEXT(pkt, next) == NULL, "more than one packet sent");
 251 }
 252 END_TEST
 253
 254 START_TEST (test_send_vlan)
 255 {
 256         int n;
 257         struct lldpd_vlan vlan1, vlan2, vlan3;
 258         /* Packet we should build:
 259 Ethernet II, Src: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad), Dst: LLDP_Multicast (01:80:c2:00:00:0e)
 260     Destination: LLDP_Multicast (01:80:c2:00:00:0e)
 261         Address: LLDP_Multicast (01:80:c2:00:00:0e)
 262     Source: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 263         Address: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 264 he factory default)
 265     Type: 802.1 Link Layer Discovery Protocol (LLDP) (0x88cc)
 266 Link Layer Discovery Protocol
 267     Chassis Subtype = Locally assigned
 268         0000 001. .... .... = TLV Type: Chassis Id (1)
 269         .... ...0 0000 1101 = TLV Length: 13
 270         Chassis Id Subtype: Locally assigned (7)
 271         Chassis Id: Chassis name
 272     Port Subtype = MAC address
 273         0000 010. .... .... = TLV Type: Port Id (2)
 274         .... ...0 0000 0111 = TLV Length: 7
 275         Port Id Subtype: MAC address (3)
 276         Port Id: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 277     Time To Live = 180 sec
 278         0000 011. .... .... = TLV Type: Time to Live (3)
 279         .... ...0 0000 0010 = TLV Length: 2
 280         Seconds: 180
 281     System Name = Second chassis
 282         0000 101. .... .... = TLV Type: System Name (5)
 283         .... ...0 0000 1110 = TLV Length: 14
 284         System Name = Second chassis
 285     System Description = Chassis description
 286         0000 110. .... .... = TLV Type: System Description (6)
 287         .... ...0 0001 0011 = TLV Length: 19
 288         System Description = Chassis description
 289     Capabilities
 290         0000 111. .... .... = TLV Type: System Capabilities (7)
 291         .... ...0 0000 0100 = TLV Length: 4
 292         Capabilities: 0x0014
 293             .... .... .... .1.. = Bridge
 294             .... .... ...1 .... = Router
 295         Enabled Capabilities: 0x0010
 296             .... .... ...1 .... = Router
 297     Port Description = Fake port description
 298         0000 100. .... .... = TLV Type: Port Description (4)
 299         .... ...0 0001 0101 = TLV Length: 21
 300         Port Description: Fake port description
 301     IEEE 802.1 - VLAN Name
 302         1111 111. .... .... = TLV Type: Organization Specific (127)
 303         .... ...0 0001 0001 = TLV Length: 17
 304         Organization Unique Code: IEEE 802.1 (0x0080c2)
 305         IEEE 802.1 Subtype: VLAN Name (0x03)
 306         VLAN Identifier: 157 (0x009D)
 307         VLAN Name Length: 10
 308         VLAN Name: First VLAN
 309     IEEE 802.1 - VLAN Name
 310         1111 111. .... .... = TLV Type: Organization Specific (127)
 311         .... ...0 0001 0010 = TLV Length: 18
 312         Organization Unique Code: IEEE 802.1 (0x0080c2)
 313         IEEE 802.1 Subtype: VLAN Name (0x03)
 314         VLAN Identifier: 1247 (0x04DF)
 315         VLAN Name Length: 11
 316         VLAN Name: Second VLAN
 317     IEEE 802.1 - VLAN Name
 318         1111 111. .... .... = TLV Type: Organization Specific (127)
 319         .... ...0 0001 0001 = TLV Length: 17
 320         Organization Unique Code: IEEE 802.1 (0x0080c2)
 321         IEEE 802.1 Subtype: VLAN Name (0x03)
 322         VLAN Identifier: 741 (0x02E5)
 323         VLAN Name Length: 10
 324         VLAN Name: Third VLAN
 325     IEEE 802.3 - Link Aggregation
 326         1111 111. .... .... = TLV Type: Organization Specific (127)
 327         .... ...0 0000 1001 = TLV Length: 9
 328         Organization Unique Code: IEEE 802.3 (0x00120f)
 329         IEEE 802.3 Subtype: Link Aggregation (0x03)
 330         Aggregation Status: 0x01
 331             .... ...1 = Aggregation Capability: Yes
 332             .... ..0. = Aggregation Status: Not Enabled
 333         Aggregated Port Id: 0
 334     IEEE 802.3 - MAC/PHY Configuration/Status
 335         1111 111. .... .... = TLV Type: Organization Specific (127)
 336         .... ...0 0000 1001 = TLV Length: 9
 337         Organization Unique Code: IEEE 802.3 (0x00120f)
 338         IEEE 802.3 Subtype: MAC/PHY Configuration/Status (0x01)
 339         Auto-Negotiation Support/Status: 0x00
 340             .... ...0 = Auto-Negotiation: Not Supported
 341             .... ..0. = Auto-Negotiation: Not Enabled
 342         PMD Auto-Negotiation Advertised Capability: 0x0000
 343         Operational MAU Type: Unknown (0x0000)
 344     IEEE 802.3 - Maximum Frame Size
 345         1111 111. .... .... = TLV Type: Organization Specific (127)
 346         .... ...0 0000 0110 = TLV Length: 6
 347         Organization Unique Code: IEEE 802.3 (0x00120f)
 348         IEEE 802.3 Subtype: Maximum Frame Size (0x04)
 349         Maximum Frame Size: 1516
 350     End of LLDPDU
 351         0000 000. .... .... = TLV Type: End of LLDPDU (0)
 352         .... ...0 0000 0000 = TLV Length: 0
 353         */
 354         char pkt1[] = {
 355                 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e, 0x5e, 0x10,
 356                 0x8e, 0xe7, 0x84, 0xad, 0x88, 0xcc, 0x02, 0x0d,
 357                 0x07, 0x43, 0x68, 0x61, 0x73, 0x73, 0x69, 0x73,
 358                 0x20, 0x6e, 0x61, 0x6d, 0x65, 0x04, 0x07, 0x03,
 359                 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad, 0x06, 0x02,
 360                 0x00, 0xb4, 0x0a, 0x0e, 0x53, 0x65, 0x63, 0x6f,
 361                 0x6e, 0x64, 0x20, 0x63, 0x68, 0x61, 0x73, 0x73,
 362                 0x69, 0x73, 0x0c, 0x13, 0x43, 0x68, 0x61, 0x73,
 363                 0x73, 0x69, 0x73, 0x20, 0x64, 0x65, 0x73, 0x63,
 364                 0x72, 0x69, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x0e,
 365                 0x04, 0x00, 0x14, 0x00, 0x10, 0x08, 0x15, 0x46,
 366                 0x61, 0x6b, 0x65, 0x20, 0x70, 0x6f, 0x72, 0x74,
 367                 0x20, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70,
 368                 0x74, 0x69, 0x6f, 0x6e, 0xfe, 0x11, 0x00, 0x80,
 369                 0xc2, 0x03, 0x00, 0x9d, 0x0a, 0x46, 0x69, 0x72,
 370                 0x73, 0x74, 0x20, 0x56, 0x4c, 0x41, 0x4e, 0xfe,
 371                 0x12, 0x00, 0x80, 0xc2, 0x03, 0x04, 0xdf, 0x0b,
 372                 0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x20, 0x56,
 373                 0x4c, 0x41, 0x4e, 0xfe, 0x11, 0x00, 0x80, 0xc2,
 374                 0x03, 0x02, 0xe5, 0x0a, 0x54, 0x68, 0x69, 0x72,
 375                 0x64, 0x20, 0x56, 0x4c, 0x41, 0x4e, 0xfe, 0x09,
 376                 0x00, 0x12, 0x0f, 0x03, 0x01, 0x00, 0x00, 0x00,
 377                 0x00, 0xfe, 0x09, 0x00, 0x12, 0x0f, 0x01, 0x00,
 378                 0x00, 0x00, 0x00, 0x00, 0xfe, 0x06, 0x00, 0x12,
 379                 0x0f, 0x04, 0x05, 0xec, 0x00, 0x00 };
 380         struct packet *pkt;
 381
 382         /* Populate port and chassis */
 383         hardware.h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_LLADDR;
 384         hardware.h_lport.p_id = macaddress;
 385         hardware.h_lport.p_id_len = ETH_ALEN;
 386         hardware.h_lport.p_descr = "Fake port description";
 387         hardware.h_lport.p_mfs = 1516;
 388         chassis.c_id_subtype = LLDP_CHASSISID_SUBTYPE_LOCAL;
 389         chassis.c_id = "Chassis name";
 390         chassis.c_id_len = strlen(chassis.c_id);
 391         chassis.c_name = "Second chassis";
 392         chassis.c_descr = "Chassis description";
 393         chassis.c_cap_available = LLDP_CAP_ROUTER | LLDP_CAP_BRIDGE;
 394         chassis.c_cap_enabled = LLDP_CAP_ROUTER;
 395         vlan1.v_name = "First VLAN"; vlan1.v_vid = 157;
 396         vlan2.v_name = "Second VLAN"; vlan2.v_vid = 1247;
 397         vlan3.v_name = "Third VLAN"; vlan3.v_vid = 741;
 398         TAILQ_INSERT_TAIL(&hardware.h_lport.p_vlans, &vlan1, v_entries);
 399         TAILQ_INSERT_TAIL(&hardware.h_lport.p_vlans, &vlan2, v_entries);
 400         TAILQ_INSERT_TAIL(&hardware.h_lport.p_vlans, &vlan3, v_entries);
 401
 402         /* Build packet */
 403         n = lldp_send(NULL, &hardware);
 404         fail_unless(n == 0, "unable to build packet");
 405         fail_unless(!TAILQ_EMPTY(&pkts));
 406         pkt = TAILQ_FIRST(&pkts);
 407         ck_assert_int_eq(pkt->size, sizeof(pkt1));
 408         fail_unless(memcmp(pkt->data, pkt1, sizeof(pkt1)) == 0);
 409         fail_unless(TAILQ_NEXT(pkt, next) == NULL, "more than one packet sent");
 410 }
 411 END_TEST
 412
 413 START_TEST (test_send_med)
 414 {
 415         int n;
 416         char loc[] = {0x28, 0x02, 0x55, 0x53, 0x01, 0x02, 0x43, 0x41, 0x03,
 417                       0x09, 0x52, 0x6f, 0x73, 0x65, 0x76, 0x69, 0x6c,
 418                       0x6c, 0x65, 0x06, 0x09, 0x46, 0x6f, 0x6f, 0x74,
 419                       0x68, 0x69, 0x6c, 0x6c, 0x73, 0x13, 0x04, 0x38,
 420                       0x30, 0x30, 0x30, 0x1a, 0x03, 0x52, 0x33, 0x4c};
 421
 422         /* Packet we should build:
 423 Ethernet II, Src: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad), Dst: LLDP_Multicast (01:80:c2:00:00:0e)
 424     Destination: LLDP_Multicast (01:80:c2:00:00:0e)
 425         Address: LLDP_Multicast (01:80:c2:00:00:0e)
 426     Source: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 427         Address: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 428 he factory default)
 429     Type: 802.1 Link Layer Discovery Protocol (LLDP) (0x88cc)
 430 Link Layer Discovery Protocol
 431     Chassis Subtype = Locally assigned
 432         0000 001. .... .... = TLV Type: Chassis Id (1)
 433         .... ...0 0000 1101 = TLV Length: 13
 434         Chassis Id Subtype: Locally assigned (7)
 435         Chassis Id: Chassis name
 436     Port Subtype = MAC address
 437         0000 010. .... .... = TLV Type: Port Id (2)
 438         .... ...0 0000 0111 = TLV Length: 7
 439         Port Id Subtype: MAC address (3)
 440         Port Id: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 441     Time To Live = 180 sec
 442         0000 011. .... .... = TLV Type: Time to Live (3)
 443         .... ...0 0000 0010 = TLV Length: 2
 444         Seconds: 180
 445     System Name = Third chassis
 446         0000 101. .... .... = TLV Type: System Name (5)
 447         .... ...0 0000 1101 = TLV Length: 13
 448         System Name = Third chassis
 449     System Description = Chassis description
 450         0000 110. .... .... = TLV Type: System Description (6)
 451         .... ...0 0001 0011 = TLV Length: 19
 452         System Description = Chassis description
 453     Capabilities
 454         0000 111. .... .... = TLV Type: System Capabilities (7)
 455         .... ...0 0000 0100 = TLV Length: 4
 456         Capabilities: 0x0014
 457             .... .... .... .1.. = Bridge
 458             .... .... ...1 .... = Router
 459         Enabled Capabilities: 0x0010
 460             .... .... ...1 .... = Router
 461     Port Description = Fake port description
 462         0000 100. .... .... = TLV Type: Port Description (4)
 463         .... ...0 0001 0101 = TLV Length: 21
 464         Port Description: Fake port description
 465     IEEE 802.3 - Link Aggregation
 466         1111 111. .... .... = TLV Type: Organization Specific (127)
 467         .... ...0 0000 1001 = TLV Length: 9
 468         Organization Unique Code: IEEE 802.3 (0x00120f)
 469         IEEE 802.3 Subtype: Link Aggregation (0x03)
 470         Aggregation Status: 0x01
 471             .... ...1 = Aggregation Capability: Yes
 472             .... ..0. = Aggregation Status: Not Enabled
 473         Aggregated Port Id: 0
 474     IEEE 802.3 - MAC/PHY Configuration/Status
 475         1111 111. .... .... = TLV Type: Organization Specific (127)
 476         .... ...0 0000 1001 = TLV Length: 9
 477         Organization Unique Code: IEEE 802.3 (0x00120f)
 478         IEEE 802.3 Subtype: MAC/PHY Configuration/Status (0x01)
 479         Auto-Negotiation Support/Status: 0x00
 480             .... ...0 = Auto-Negotiation: Not Supported
 481             .... ..0. = Auto-Negotiation: Not Enabled
 482         PMD Auto-Negotiation Advertised Capability: 0x0000
 483         Operational MAU Type: Unknown (0x0000)
 484     IEEE 802.3 - Maximum Frame Size
 485         1111 111. .... .... = TLV Type: Organization Specific (127)
 486         .... ...0 0000 0110 = TLV Length: 6
 487         Organization Unique Code: IEEE 802.3 (0x00120f)
 488         IEEE 802.3 Subtype: Maximum Frame Size (0x04)
 489         Maximum Frame Size: 1516
 490     TIA - Media Capabilities
 491         1111 111. .... .... = TLV Type: Organization Specific (127)
 492         .... ...0 0000 0111 = TLV Length: 7
 493         Organization Unique Code: TIA (0x0012bb)
 494         Media Subtype: Media Capabilities (0x01)
 495         Capabilities: 0x002f
 496             .... .... .... ...1 = LLDP-MED Capabilities
 497             .... .... .... ..1. = Network Policy
 498             .... .... .... .1.. = Location Identification
 499             .... .... .... 1... = Extended Power via MDI-PSE
 500             .... .... ..1. .... = Inventory
 501         Class Type: Endpoint Class III
 502     TIA - Inventory - Hardware Revision
 503         1111 111. .... .... = TLV Type: Organization Specific (127)
 504         .... ...0 0001 0010 = TLV Length: 18
 505         Organization Unique Code: TIA (0x0012bb)
 506         Media Subtype: Inventory - Hardware Revision (0x05)
 507         Hardware Revision: hardware rev 5
 508     TIA - Inventory - Firmware Revision
 509         1111 111. .... .... = TLV Type: Organization Specific (127)
 510         .... ...0 0000 1000 = TLV Length: 8
 511         Organization Unique Code: TIA (0x0012bb)
 512         Media Subtype: Inventory - Firmware Revision (0x06)
 513         Firmware Revision: 47b5
 514     TIA - Inventory - Software Revision
 515         1111 111. .... .... = TLV Type: Organization Specific (127)
 516         .... ...0 0000 1100 = TLV Length: 12
 517         Organization Unique Code: TIA (0x0012bb)
 518         Media Subtype: Inventory - Software Revision (0x07)
 519         Software Revision: 2.6.22b5
 520     TIA - Inventory - Serial Number
 521         1111 111. .... .... = TLV Type: Organization Specific (127)
 522         .... ...0 0000 1100 = TLV Length: 12
 523         Organization Unique Code: TIA (0x0012bb)
 524         Media Subtype: Inventory - Serial Number (0x08)
 525         Serial Number: SN 47842
 526     TIA - Location Identification
 527         1111 111. .... .... = TLV Type: Organization Specific (127)
 528         .... ...0 0010 1110 = TLV Length: 46
 529         Organization Unique Code: TIA (0x0012bb)
 530         Media Subtype: Location Identification (0x03)
 531         Location Data Format: Civic Address LCI (2)
 532         LCI Length: 40
 533         What: Location of the client (2)
 534         Country: US
 535         CA Type: National subdivisions (province, state, etc) (1)
 536         CA Length: 2
 537         CA Value: CA
 538         CA Type: City, township (3)
 539         CA Length: 9
 540         CA Value: Roseville
 541         CA Type: Street (6)
 542         CA Length: 9
 543         CA Value: Foothills
 544         CA Type: House number (19)
 545         CA Length: 4
 546         CA Value: 8000
 547         CA Type: Unit (26)
 548         CA Length: 3
 549         CA Value: R3L
 550     End of LLDPDU
 551         0000 000. .... .... = TLV Type: End of LLDPDU (0)
 552         .... ...0 0000 0000 = TLV Length: 0
 553         */
 554         char pkt1[] = {
 555                 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e, 0x5e, 0x10,
 556                 0x8e, 0xe7, 0x84, 0xad, 0x88, 0xcc, 0x02, 0x0d,
 557                 0x07, 0x43, 0x68, 0x61, 0x73, 0x73, 0x69, 0x73,
 558                 0x20, 0x6e, 0x61, 0x6d, 0x65, 0x04, 0x07, 0x03,
 559                 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad, 0x06, 0x02,
 560                 0x00, 0xb4, 0x0a, 0x0d, 0x54, 0x68, 0x69, 0x72,
 561                 0x64, 0x20, 0x63, 0x68, 0x61, 0x73, 0x73, 0x69,
 562                 0x73, 0x0c, 0x13, 0x43, 0x68, 0x61, 0x73, 0x73,
 563                 0x69, 0x73, 0x20, 0x64, 0x65, 0x73, 0x63, 0x72,
 564                 0x69, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x0e, 0x04,
 565                 0x00, 0x14, 0x00, 0x10, 0x08, 0x15, 0x46, 0x61,
 566                 0x6b, 0x65, 0x20, 0x70, 0x6f, 0x72, 0x74, 0x20,
 567                 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74,
 568                 0x69, 0x6f, 0x6e, 0xfe, 0x09, 0x00, 0x12, 0x0f,
 569                 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x09,
 570                 0x00, 0x12, 0x0f, 0x01, 0x00, 0x00, 0x00, 0x00,
 571                 0x00, 0xfe, 0x06, 0x00, 0x12, 0x0f, 0x04, 0x05,
 572                 0xec, 0xfe, 0x07, 0x00, 0x12, 0xbb, 0x01, 0x00,
 573                 0x2f, 0x03, 0xfe, 0x12, 0x00, 0x12, 0xbb, 0x05,
 574                 0x68, 0x61, 0x72, 0x64, 0x77, 0x61, 0x72, 0x65,
 575                 0x20, 0x72, 0x65, 0x76, 0x20, 0x35, 0xfe, 0x08,
 576                 0x00, 0x12, 0xbb, 0x06, 0x34, 0x37, 0x62, 0x35,
 577                 0xfe, 0x0c, 0x00, 0x12, 0xbb, 0x07, 0x32, 0x2e,
 578                 0x36, 0x2e, 0x32, 0x32, 0x62, 0x35, 0xfe, 0x0c,
 579                 0x00, 0x12, 0xbb, 0x08, 0x53, 0x4e, 0x20, 0x34,
 580                 0x37, 0x38, 0x34, 0x32, 0xfe, 0x2e, 0x00, 0x12,
 581                 0xbb, 0x03, 0x02, 0x28, 0x02, 0x55, 0x53, 0x01,
 582                 0x02, 0x43, 0x41, 0x03, 0x09, 0x52, 0x6f, 0x73,
 583                 0x65, 0x76, 0x69, 0x6c, 0x6c, 0x65, 0x06, 0x09,
 584                 0x46, 0x6f, 0x6f, 0x74, 0x68, 0x69, 0x6c, 0x6c,
 585                 0x73, 0x13, 0x04, 0x38, 0x30, 0x30, 0x30, 0x1a,
 586                 0x03, 0x52, 0x33, 0x4c, 0x00, 0x00 };
 587         struct packet *pkt;
 588
 589         /* Populate port and chassis */
 590         hardware.h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_LLADDR;
 591         hardware.h_lport.p_id = macaddress;
 592         hardware.h_lport.p_id_len = ETH_ALEN;
 593         hardware.h_lport.p_descr = "Fake port description";
 594         hardware.h_lport.p_mfs = 1516;
 595         chassis.c_id_subtype = LLDP_CHASSISID_SUBTYPE_LOCAL;
 596         chassis.c_id = "Chassis name";
 597         chassis.c_id_len = strlen(chassis.c_id);
 598         chassis.c_name = "Third chassis";
 599         chassis.c_descr = "Chassis description";
 600         chassis.c_cap_available = LLDP_CAP_ROUTER | LLDP_CAP_BRIDGE;
 601         chassis.c_cap_enabled = LLDP_CAP_ROUTER;
 602         chassis.c_med_cap_available = LLDPMED_CAP_CAP | LLDPMED_CAP_POLICY |
 603                 LLDPMED_CAP_LOCATION | LLDPMED_CAP_MDI_PSE |
 604                 LLDPMED_CAP_IV;
 605         chassis.c_med_type = LLDPMED_CLASS_III;
 606         chassis.c_med_hw = "hardware rev 5";
 607         chassis.c_med_fw = "47b5";
 608         chassis.c_med_sw = "2.6.22b5";
 609         chassis.c_med_sn = "SN 47842";
 610         hardware.h_lport.p_med_cap_enabled = chassis.c_med_cap_available;
 611         hardware.h_lport.p_med_location[LLDPMED_LOCFORMAT_CIVIC-1].format =
 612                 LLDPMED_LOCFORMAT_CIVIC;
 613         hardware.h_lport.p_med_location[LLDPMED_LOCFORMAT_CIVIC-1].data_len =
 614                 loc[0] + 1; /* +1 is because of the size */
 615         hardware.h_lport.p_med_location[LLDPMED_LOCFORMAT_CIVIC-1].data = loc;
 616         /* The following is ignored */
 617         hardware.h_lport.p_med_policy[LLDPMED_APPTYPE_SOFTPHONEVOICE-1].type =
 618                 LLDPMED_APPTYPE_SOFTPHONEVOICE;
 619         hardware.h_lport.p_med_policy[LLDPMED_APPTYPE_SOFTPHONEVOICE-1].tagged =
 620                 1;
 621         hardware.h_lport.p_med_policy[LLDPMED_APPTYPE_SOFTPHONEVOICE-1].vid =
 622                 51;
 623         hardware.h_lport.p_med_policy[LLDPMED_APPTYPE_SOFTPHONEVOICE-1].priority =
 624                 6;
 625         hardware.h_lport.p_med_policy[LLDPMED_APPTYPE_SOFTPHONEVOICE-1].dscp =
 626                 46;
 627         hardware.h_lport.p_med_pow_devicetype = LLDPMED_POW_TYPE_PSE;
 628         hardware.h_lport.p_med_pow_source = LLDPMED_POW_SOURCE_PRIMARY;
 629         hardware.h_lport.p_med_pow_priority = LLDPMED_POW_PRIO_HIGH;
 630         hardware.h_lport.p_med_pow_val = 65;
 631
 632         /* Build packet */
 633         n = lldp_send(NULL, &hardware);
 634         fail_unless(n == 0, "unable to build packet");
 635         fail_unless(!TAILQ_EMPTY(&pkts));
 636         pkt = TAILQ_FIRST(&pkts);
 637         ck_assert_int_eq(pkt->size, sizeof(pkt1));
 638         fail_unless(memcmp(pkt->data, pkt1, sizeof(pkt1)) == 0);
 639         fail_unless(TAILQ_NEXT(pkt, next) == NULL, "more than one packet sent");
 640 }
 641 END_TEST
 642
 643 START_TEST (test_send_dot3)
 644 {
 645         int n;
 646         /* Packet we should build:
 647 Ethernet II, Src: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad), Dst: LLDP_Multicast (01:80:c2:00:00:0e)
 648     Destination: LLDP_Multicast (01:80:c2:00:00:0e)
 649         Address: LLDP_Multicast (01:80:c2:00:00:0e)
 650     Source: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 651         Address: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 652 he factory default)
 653     Type: 802.1 Link Layer Discovery Protocol (LLDP) (0x88cc)
 654 Link Layer Discovery Protocol
 655     Chassis Subtype = MAC address
 656         0000 001. .... .... = TLV Type: Chassis Id (1)
 657         .... ...0 0000 0111 = TLV Length: 7
 658         Chassis Id Subtype: MAC address (4)
 659         Chassis Id: 5e:10:8e:e7:84:ad (5e:10:8e:e7:84:ad)
 660     Port Subtype = Interface name
 661         0000 010. .... .... = TLV Type: Port Id (2)
 662         .... ...0 0001 0001 = TLV Length: 17
 663         Port Id Subtype: Interface name (5)
 664         Port Id: FastEthernet 1/5
 665     Time To Live = 180 sec
 666         0000 011. .... .... = TLV Type: Time to Live (3)
 667         .... ...0 0000 0010 = TLV Length: 2
 668         Seconds: 180
 669     System Name = Fourth chassis
 670         0000 101. .... .... = TLV Type: System Name (5)
 671         .... ...0 0000 1110 = TLV Length: 14
 672         System Name = Fourth chassis
 673     System Description = Long chassis description
 674         0000 110. .... .... = TLV Type: System Description (6)
 675         .... ...0 0001 1000 = TLV Length: 24
 676         System Description = Long chassis description
 677     Capabilities
 678         0000 111. .... .... = TLV Type: System Capabilities (7)
 679         .... ...0 0000 0100 = TLV Length: 4
 680         Capabilities: 0x0018
 681             .... .... .... 1... = WLAN access point
 682             .... .... ...1 .... = Router
 683         Enabled Capabilities: 0x0018
 684             .... .... .... 1... = WLAN access point
 685             .... .... ...1 .... = Router
 686     Port Description = Fake port description
 687         0000 100. .... .... = TLV Type: Port Description (4)
 688         .... ...0 0001 0101 = TLV Length: 21
 689         Port Description: Fake port description
 690     IEEE 802.3 - Link Aggregation
 691         1111 111. .... .... = TLV Type: Organization Specific (127)
 692         .... ...0 0000 1001 = TLV Length: 9
 693         Organization Unique Code: IEEE 802.3 (0x00120f)
 694         IEEE 802.3 Subtype: Link Aggregation (0x03)
 695         Aggregation Status: 0x03
 696             .... ...1 = Aggregation Capability: Yes
 697             .... ..1. = Aggregation Status: Enabled
 698         Aggregated Port Id: 5
 699     IEEE 802.3 - MAC/PHY Configuration/Status
 700         1111 111. .... .... = TLV Type: Organization Specific (127)
 701         .... ...0 0000 1001 = TLV Length: 9
 702         Organization Unique Code: IEEE 802.3 (0x00120f)
 703         IEEE 802.3 Subtype: MAC/PHY Configuration/Status (0x01)
 704         Auto-Negotiation Support/Status: 0x03
 705             .... ...1 = Auto-Negotiation: Supported
 706             .... ..1. = Auto-Negotiation: Enabled
 707         PMD Auto-Negotiation Advertised Capability: 0x6C00
 708             .... .1.. .... .... = 100BASE-TX (full duplex mode)
 709             .... 1... .... .... = 100BASE-TX (half duplex mode)
 710             ..1. .... .... .... = 10BASE-T (full duplex mode)
 711             .1.. .... .... .... = 10BASE-T (half duplex mode)
 712         Operational MAU Type: 100BaseTXFD - 2 pair category 5 UTP, full duplex mode (0x0010)
 713     IEEE 802.3 - Maximum Frame Size
 714         1111 111. .... .... = TLV Type: Organization Specific (127)
 715         .... ...0 0000 0110 = TLV Length: 6
 716         Organization Unique Code: IEEE 802.3 (0x00120f)
 717         IEEE 802.3 Subtype: Maximum Frame Size (0x04)
 718         Maximum Frame Size: 1516
 719     End of LLDPDU
 720         0000 000. .... .... = TLV Type: End of LLDPDU (0)
 721         .... ...0 0000 0000 = TLV Length: 0
 722         */
 723         char pkt1[] = {
 724                 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e, 0x5e, 0x10,
 725                 0x8e, 0xe7, 0x84, 0xad, 0x88, 0xcc, 0x02, 0x07,
 726                 0x04, 0x5e, 0x10, 0x8e, 0xe7, 0x84, 0xad, 0x04,
 727                 0x11, 0x05, 0x46, 0x61, 0x73, 0x74, 0x45, 0x74,
 728                 0x68, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x31,
 729                 0x2f, 0x35, 0x06, 0x02, 0x00, 0xb4, 0x0a, 0x0e,
 730                 0x46, 0x6f, 0x75, 0x72, 0x74, 0x68, 0x20, 0x63,
 731                 0x68, 0x61, 0x73, 0x73, 0x69, 0x73, 0x0c, 0x18,
 732                 0x4c, 0x6f, 0x6e, 0x67, 0x20, 0x63, 0x68, 0x61,
 733                 0x73, 0x73, 0x69, 0x73, 0x20, 0x64, 0x65, 0x73,
 734                 0x63, 0x72, 0x69, 0x70, 0x74, 0x69, 0x6f, 0x6e,
 735                 0x0e, 0x04, 0x00, 0x18, 0x00, 0x18, 0x08, 0x15,
 736                 0x46, 0x61, 0x6b, 0x65, 0x20, 0x70, 0x6f, 0x72,
 737                 0x74, 0x20, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69,
 738                 0x70, 0x74, 0x69, 0x6f, 0x6e, 0xfe, 0x09, 0x00,
 739                 0x12, 0x0f, 0x03, 0x03, 0x00, 0x00, 0x00, 0x05,
 740                 0xfe, 0x09, 0x00, 0x12, 0x0f, 0x01, 0x03, 0x6c,
 741                 0x00, 0x00, 0x10, 0xfe, 0x06, 0x00, 0x12, 0x0f,
 742                 0x04, 0x05, 0xec, 0x00, 0x00 };
 743         struct packet *pkt;
 744
 745         /* Populate port and chassis */
 746         hardware.h_lport.p_id_subtype = LLDP_PORTID_SUBTYPE_IFNAME;
 747         hardware.h_lport.p_id = "FastEthernet 1/5";
 748         hardware.h_lport.p_id_len = strlen(hardware.h_lport.p_id);
 749         hardware.h_lport.p_descr = "Fake port description";
 750         hardware.h_lport.p_mfs = 1516;
 751         hardware.h_lport.p_aggregid = 5;
 752         hardware.h_lport.p_autoneg_support = 1;
 753         hardware.h_lport.p_autoneg_enabled = 1;
 754         hardware.h_lport.p_autoneg_advertised = LLDP_DOT3_LINK_AUTONEG_10BASE_T |
 755                 LLDP_DOT3_LINK_AUTONEG_10BASET_FD | LLDP_DOT3_LINK_AUTONEG_100BASE_TX |
 756                 LLDP_DOT3_LINK_AUTONEG_100BASE_TXFD;
 757         hardware.h_lport.p_mau_type = LLDP_DOT3_MAU_100BASETXFD;
 758         chassis.c_id_subtype = LLDP_CHASSISID_SUBTYPE_LLADDR;
 759         chassis.c_id = macaddress;
 760         chassis.c_id_len = ETH_ALEN;
 761         chassis.c_name = "Fourth chassis";
 762         chassis.c_descr = "Long chassis description";
 763         chassis.c_cap_available = chassis.c_cap_enabled = LLDP_CAP_ROUTER | LLDP_CAP_WLAN;
 764
 765         /* Build packet */
 766         n = lldp_send(NULL, &hardware);
 767         fail_unless(n == 0, "unable to build packet");
 768         fail_unless(!TAILQ_EMPTY(&pkts));
 769         pkt = TAILQ_FIRST(&pkts);
 770         ck_assert_int_eq(pkt->size, sizeof(pkt1));
 771         fail_unless(memcmp(pkt->data, pkt1, sizeof(pkt1)) == 0);
 772         fail_unless(TAILQ_NEXT(pkt, next) == NULL, "more than one packet sent");
 773 }
 774 END_TEST
 775
 776 Suite *
 777 lldp_suite(void)
 778 {
 779         Suite *s = suite_create("LLDP");
 780
 781         /* Send tests are first run without knowing the result. The
 782            result is then checked with:
 783              tshark -V -T text -r tests/lldp_send_0000.pcap
 784
 785            If the result is correct, then, we get the packet as C
 786            bytes using wireshark export to C arrays (tshark seems not
 787            be able to do this).
 788         */
 789
 790         TCase *tc_send = tcase_create("Send LLDP packets");
 791         tcase_add_checked_fixture(tc_send, setup, teardown);
 792         tcase_add_test(tc_send, test_send_basic);
 793         tcase_add_test(tc_send, test_send_vlan);
 794         tcase_add_test(tc_send, test_send_med);
 795         tcase_add_test(tc_send, test_send_dot3);
 796         suite_add_tcase(s, tc_send);
 797
 798         TCase *tc_receive = tcase_create("Receive LLDP packets");
 799         suite_add_tcase(s, tc_receive);
 800
 801         return s;
 802 }
 803
 804 int
 805 main()
 806 {
 807         int number_failed;
 808         Suite *s = lldp_suite ();
 809         SRunner *sr = srunner_create (s);
 810         srunner_set_fork_status (sr, CK_NOFORK); /* Can't fork because
 811                                                     we need to write
 812                                                     files */
 813         srunner_run_all (sr, CK_ENV);
 814         number_failed = srunner_ntests_failed (sr);
 815         srunner_free (sr);
 816         return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
 817 }