pfx.h

/*
 * This file is part of RTRlib.
 *
 * RTRlib is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or (at your
 * option) any later version.
 *
 * RTRlib 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with RTRlib; see the file COPYING.LESSER.
 *
 * INET group, Hamburg University of Applied Sciences,
 * CST group, Freie Universitaet Berlin
 * Website: http://rpki.realmv6.org/
 */

#ifndef RTR_PFX_H
#define RTR_PFX_H
#include <stdint.h>
#include <sys/types.h>
#include "rtrlib/lib/ip.h"
#include "rtrlib/rtr/rtr.h"

enum pfx_rtvals {
    PFX_SUCCESS = 0,

    PFX_ERROR = -1,

    PFX_DUPLICATE_RECORD = -2,

    PFX_RECORD_NOT_FOUND = -3
};

struct pfx_table;

enum pfxv_state {
    BGP_PFXV_STATE_VALID,

    BGP_PFXV_STATE_NOT_FOUND,

    BGP_PFXV_STATE_INVALID
};


struct pfx_record {
    uint32_t asn;
    struct ip_addr prefix;
    uint8_t min_len;
    uint8_t max_len;
    const struct rtr_socket *socket;
};

typedef void (*pfx_update_fp)(struct pfx_table *pfx_table, const struct pfx_record record, const bool added);

typedef void (*pfx_for_each_fp)(const struct pfx_record *pfx_record, void *data);

void pfx_table_init(struct pfx_table *pfx_table, pfx_update_fp update_fp);

void pfx_table_free(struct pfx_table *pfx_table);

int pfx_table_add(struct pfx_table *pfx_table, const struct pfx_record *pfx_record);

int pfx_table_remove(struct pfx_table *pfx_table, const struct pfx_record *pfx_record);

int pfx_table_src_remove(struct pfx_table *pfx_table, const struct rtr_socket *socket);

int pfx_table_validate(struct pfx_table *pfx_table, const uint32_t asn, const struct ip_addr *prefix, const uint8_t mask_len, enum pfxv_state *result);

int pfx_table_validate_r(struct pfx_table *pfx_table, struct pfx_record **reason, unsigned int *reason_len,  const uint32_t asn, const struct ip_addr *prefix, const uint8_t mask_len, enum pfxv_state *result);

void pfx_table_for_each_ipv4_record(struct pfx_table *pfx_table, pfx_for_each_fp fp, void *data);

void pfx_table_for_each_ipv6_record(struct pfx_table *pfx_table, pfx_for_each_fp fp, void *data);

#endif
/* @} */