ripng_nexthop.h 2.1 KB

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  1. /* RIPng nexthop support
  2. * Copyright (C) 6WIND Vincent Jardin <vincent.jardin@6wind.com>
  3. *
  4. * This file is part of GNU Zebra.
  5. *
  6. * GNU Zebra is free software; you can redistribute it and/or modify it
  7. * under the terms of the GNU General Public License as published by the
  8. * Free Software Foundation; either version 2, or (at your option) any
  9. * later version.
  10. *
  11. * GNU Zebra is distributed in the hope that it will be useful, but
  12. * WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with GNU Zebra; see the file COPYING. If not, write to the Free
  18. * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19. * 02111-1307, USA.
  20. */
  21. #ifndef _ZEBRA_RIPNG_RIPNG_NEXTHOP_H
  22. #define _ZEBRA_RIPNG_RIPNG_NEXTHOP_H
  23. #include <zebra.h>
  24. #include "linklist.h"
  25. #include "ripngd/ripng_route.h"
  26. #include "ripngd/ripngd.h"
  27. struct list * ripng_rte_new(void);
  28. void ripng_rte_free(struct list *ripng_rte_list);
  29. void ripng_rte_add(struct list *ripng_rte_list, struct prefix_ipv6 *p,
  30. struct ripng_info *rinfo, struct ripng_aggregate *aggregate);
  31. void ripng_rte_send(struct list *ripng_rte_list, struct interface *ifp,
  32. struct sockaddr_in6 *to);
  33. /***
  34. * 1 if A > B
  35. * 0 if A = B
  36. * -1 if A < B
  37. **/
  38. static inline int
  39. addr6_cmp(struct in6_addr *A, struct in6_addr *B) {
  40. #ifndef s6_addr32
  41. #if defined(SUNOS_5)
  42. /* Some SunOS define s6_addr32 only to kernel */
  43. #define s6_addr32 _S6_un._S6_u32
  44. #else
  45. #define s6_addr32 __u6_addr.__u6_addr32
  46. #endif /* SUNOS_5 */
  47. #endif /*s6_addr32*/
  48. #define a(i) A->s6_addr32[i]
  49. #define b(i) B->s6_addr32[i]
  50. if (a(3) > b(3))
  51. return 1;
  52. else if ((a(3) == b(3)) && (a(2) > b(2)))
  53. return 1;
  54. else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) > b(1)))
  55. return 1;
  56. else if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1)) && (a(0) > b(0)))
  57. return 1;
  58. if ((a(3) == b(3)) && (a(2) == b(2)) && (a(1) == b(1)) && (a(0) == b(0)))
  59. return 0;
  60. return -1;
  61. }
  62. #endif /* _ZEBRA_RIPNG_RIPNG_NEXTHOP_H */