rtr_pdus.h

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#include "rtrlib/spki/spkitable.h"
 
#include <stdint.h>
 
enum pdu_error_type {
        CORRUPT_DATA = 0,
        INTERNAL_ERROR = 1,
        NO_DATA_AVAIL = 2,
        INVALID_REQUEST = 3,
        UNSUPPORTED_PROTOCOL_VER = 4,
        UNSUPPORTED_PDU_TYPE = 5,
        WITHDRAWAL_OF_UNKNOWN_RECORD = 6,
        DUPLICATE_ANNOUNCEMENT = 7,
        UNEXPECTED_PROTOCOL_VERSION = 8,
        PDU_TOO_BIG = 32
};
 
enum pdu_type {
        SERIAL_NOTIFY = 0,
        SERIAL_QUERY = 1,
        RESET_QUERY = 2,
        CACHE_RESPONSE = 3,
        IPV4_PREFIX = 4,
        RESERVED = 5,
        IPV6_PREFIX = 6,
        EOD = 7,
        CACHE_RESET = 8,
        ROUTER_KEY = 9,
        ERROR = 10,
        ASPA = 11
};
 
struct pdu_header {
        uint8_t ver;
        uint8_t type;
        uint16_t reserved;
        uint32_t len;
};
 
struct pdu_cache_response {
        uint8_t ver;
        uint8_t type;
        uint16_t session_id;
        uint32_t len;
};
 
struct pdu_serial_notify {
        uint8_t ver;
        uint8_t type;
        uint16_t session_id;
        uint32_t len;
        uint32_t sn;
};
 
struct pdu_serial_query {
        uint8_t ver;
        uint8_t type;
        uint16_t session_id;
        uint32_t len;
        uint32_t sn;
};
 
struct pdu_ipv4 {
        uint8_t ver;
        uint8_t type;
        uint16_t reserved;
        uint32_t len;
        uint8_t flags;
        uint8_t prefix_len;
        uint8_t max_prefix_len;
        uint8_t zero;
        uint32_t prefix;
        uint32_t asn;
};
 
struct pdu_ipv6 {
        uint8_t ver;
        uint8_t type;
        uint16_t reserved;
        uint32_t len;
        uint8_t flags;
        uint8_t prefix_len;
        uint8_t max_prefix_len;
        uint8_t zero;
        uint32_t prefix[4];
        uint32_t asn;
};
 
struct pdu_error {
        uint8_t ver;
        uint8_t type;
        uint16_t error_code;
        uint32_t len;
        uint32_t len_enc_pdu;
        uint8_t rest[];
};
 
struct pdu_router_key {
        uint8_t ver;
        uint8_t type;
        uint8_t flags;
        uint8_t zero;
        uint32_t len;
        uint8_t ski[SKI_SIZE];
        uint32_t asn;
        uint8_t spki[SPKI_SIZE];
} __attribute__((packed));
 
/*
 * 0          8          16         24        31
 * .-------------------------------------------.
 * | Protocol |   PDU    |                     |
 * | Version  |   Type   |    reserved = zero  |
 * |    0     |    2     |                     |
 * +-------------------------------------------+
 * |                                           |
 * |                 Length=8                  |
 * |                                           |
 * `-------------------------------------------'
 */
struct pdu_reset_query {
        uint8_t ver;
        uint8_t type;
        uint16_t flags;
        uint32_t len;
};
 
struct pdu_aspa {
        uint8_t ver;
        uint8_t type;
        uint16_t zero;
        uint32_t len;
        uint8_t flags;
        uint8_t afi_flags;
        uint16_t provider_count;
        uint32_t customer_asn;
        uint32_t provider_asns[];
};
 
struct pdu_end_of_data_v0 {
        uint8_t ver;
        uint8_t type;
        uint16_t session_id;
        uint32_t len;
        uint32_t sn;
};
 
struct pdu_end_of_data_v1_v2 {
        uint8_t ver;
        uint8_t type;
        uint16_t session_id;
        uint32_t len;
        uint32_t sn;
        uint32_t refresh_interval;
        uint32_t retry_interval;
        uint32_t expire_interval;
};