diff options
Diffstat (limited to 'include/libnet/libnet-headers.h')
| -rw-r--r-- | include/libnet/libnet-headers.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/include/libnet/libnet-headers.h b/include/libnet/libnet-headers.h index afbb5c3..01194c9 100644 --- a/include/libnet/libnet-headers.h +++ b/include/libnet/libnet-headers.h @@ -107,6 +107,7 @@ #define LIBNET_SEBEK_H 0x30 /* sebek header: 48 bytes */ #define LIBNET_STP_CONF_H 0x23 /**< STP conf header: 35 bytes */ #define LIBNET_STP_TCN_H 0x04 /**< STP tcn header: 4 bytes */ +#define LIBNET_UDLD_H 0x04 /**< UDLD header: 4 bytes */ #define LIBNET_TOKEN_RING_H 0x16 /**< Token Ring header: 22 bytes */ #define LIBNET_TCP_H 0x14 /**< TCP header: 20 bytes */ #define LIBNET_UDP_H 0x08 /**< UDP header: 8 bytes */ @@ -1734,6 +1735,64 @@ struct libnet_stp_tcn_hdr uint8_t stp_bpdu_type; /* bridge protocol data unit type */ }; +/* + * UDLD header + * UniDirectional Link Detection + * Base header size: 4 bytes +*/ +struct libnet_udld_hdr +{ + /* LLC Info */ +#define LIBNET_UDLD_DEST_MAC {0x01, 0x00, 0x0C, 0xCC, 0xCC, 0xCC} + + /* UDLD SNAP Format */ +#define LIBNET_UDLD_LLC_DSAP 0xAA +#define LIBNET_UDLD_LLC_SSAP 0xAA +#define LIBNET_UDLD_LLC_CONTROL 0x03 +#define LIBNET_UDLD_OID {0x00, 0x00, 0x0C} +#define LIBNET_UDLD_HDLC_PROTO_TYPE 0x0111 + + /* Protocol Data Unit (PDU) Format */ + uint8_t version_opcode; +#define LIBNET_UDLD_PDU_VERSION 0x01 +#define LIBNET_UDLD_PDU_VERSION_OFFSET (5) + +#define LIBNET_UDLD_PDU_OPCODE_RESERVED 0x00 /* Reserved opcode message */ +#define LIBNET_UDLD_PDU_OPCODE_PROBE 0x01 /* Probe opcode message */ +#define LIBNET_UDLD_PDU_OPCODE_ECHO 0x02 /* Echo opcode message */ +#define LIBNET_UDLD_PDU_OPCODE_FLUSH 0x03 /* Flush opcode message */ +#define LIBNET_UDLD_PDU_OPCODE_RESERVED_FUTURE 0x04 /* Reserved for future use 0x04-0x1F */ +#define LIBNET_UDLD_PDU_OPCODE_MASK 0x1F + + uint8_t flags; +#define LIBNET_UDLD_FLAG_RT 0x01 /* Bit 0 : Recommended timeout flag (RT) */ +#define LIBNET_UDLD_FLAG_RSY 0x02 /* Bit 1 : ReSynch flag (RSY) */ +#define LIBNET_UDLD_FLAG_RESERVED 0x03 /* Bit 2-7: Reserved for future use */ + + uint16_t checksum; /* IP-like checksum */ +#define LIBNET_PROTO_UDLD 202 + + /* TLVs */ +#define LIBNET_UDLD_TLV_HDR_SIZE 0x04 /* UDLD TLV's header size 4 bytes */ + + uint16_t tlv__type; +#define LIBNET_UDLD_DEVICE_ID 0x0001 /* Value format: ASCII character string */ +#define LIBNET_UDLD_PORT_ID 0x0002 /* Value format: ASCII character string */ +#define LIBNET_UDLD_ECHO 0x0003 /* Value format: List of ID pairs */ +#define LIBNET_UDLD_MESSAGE_INTERVAL 0x0004 /* Value format: 8-bit unsigned integer */ +#define LIBNET_UDLD_TIMEOUT_INTERVAL 0x0005 /* Value format: 8-bit unsigned integer */ +#define LIBNET_UDLD_DEVICE_NAME 0x0006 /* Value format: ASCII character string */ +#define LIBNET_UDLD_SEQUENCE_NUMBER 0x0007 /* Value format: 32-bit unsigned integer */ +/* Reserved TLVs >0x0007 Value format: To be skipped by parsing routine */ + + uint16_t tlv__length; + + /* TLV value types */ +#define LIBNET_UDLD_VALUE_TYPE_ASCII (0) +#define LIBNET_UDLD_VALUE_TYPE_ID_PAIRS (1) +#define LIBNET_UDLD_VALUE_TYPE_8_BIT_UINT (2) +#define LIBNET_UDLD_VALUE_TYPE_32_BIT_UINT (3) +}; /* * TCP header |