pimd/pim_msg.h

   1 /*
   2   PIM for Quagga
   3   Copyright (C) 2008  Everton da Silva Marques
   4
   5   This program is free software; you can redistribute it and/or modify
   6   it under the terms of the GNU General Public License as published by
   7   the Free Software Foundation; either version 2 of the License, or
   8   (at your option) any later version.
   9
  10   This program is distributed in the hope that it will be useful, but
  11   WITHOUT ANY WARRANTY; without even the implied warranty of
  12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   General Public License for more details.
  14
  15   You should have received a copy of the GNU General Public License
  16   along with this program; see the file COPYING; if not, write to the
  17   Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  18   MA 02110-1301 USA
  19 */
  20
  21 #ifndef PIM_MSG_H
  22 #define PIM_MSG_H
  23
  24 #include <netinet/in.h>
  25
  26 /*
  27   Number       Description
  28   ----------   ------------------
  29   0            Reserved
  30   1            IP (IP version 4)
  31   2            IP6 (IP version 6)
  32
  33   From:
  34   http://www.iana.org/assignments/address-family-numbers
  35 */
  36 #define PIM_MSG_ADDRESS_FAMILY_IPV4 (1)
  37
  38 void pim_msg_build_header(uint8_t *pim_msg, int pim_msg_size,
  39                           uint8_t pim_msg_type);
  40 uint8_t *pim_msg_addr_encode_ipv4_ucast(uint8_t *buf,
  41                                         int buf_size,
  42                                         struct in_addr addr);
  43 uint8_t *pim_msg_addr_encode_ipv4_group(uint8_t *buf,
  44                                         int buf_size,
  45                                         struct in_addr addr);
  46
  47 #define PIM_ENCODE_SPARSE_BIT      0x04
  48 #define PIM_ENCODE_WC_BIT          0x02
  49 #define PIM_ENCODE_RPT_BIT         0x01
  50 uint8_t *pim_msg_addr_encode_ipv4_source(uint8_t *buf,
  51                                          int buf_size,
  52                                          struct in_addr addr,
  53                                          uint8_t bits);
  54
  55
  56 int pim_msg_join_prune_encode (uint8_t *buf, int buf_size, int is_join,
  57                                struct pim_upstream *up,
  58                                struct in_addr upstream, int holdtime);
  59 #endif /* PIM_MSG_H */