udp.h 3.3 KB

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  1. /* Copyright (C) 1991-1993,1995-1997,2004,2009 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. /*
  15. * Copyright (C) 1982, 1986 Regents of the University of California.
  16. * All rights reserved.
  17. *
  18. * Redistribution and use in source and binary forms, with or without
  19. * modification, are permitted provided that the following conditions
  20. * are met:
  21. * 1. Redistributions of source code must retain the above copyright
  22. * notice, this list of conditions and the following disclaimer.
  23. * 2. Redistributions in binary form must reproduce the above copyright
  24. * notice, this list of conditions and the following disclaimer in the
  25. * documentation and/or other materials provided with the distribution.
  26. * 4. Neither the name of the University nor the names of its contributors
  27. * may be used to endorse or promote products derived from this software
  28. * without specific prior written permission.
  29. *
  30. * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  31. * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  32. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  33. * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  34. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  35. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  36. * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  37. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  38. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  39. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  40. * SUCH DAMAGE.
  41. */
  42. #ifndef __NETINET_UDP_H
  43. #define __NETINET_UDP_H 1
  44. #include <features.h>
  45. #include <sys/types.h>
  46. /* UDP header as specified by RFC 768, August 1980. */
  47. #ifdef __FAVOR_BSD
  48. struct udphdr
  49. {
  50. u_int16_t uh_sport; /* source port */
  51. u_int16_t uh_dport; /* destination port */
  52. u_int16_t uh_ulen; /* udp length */
  53. u_int16_t uh_sum; /* udp checksum */
  54. };
  55. #else
  56. struct udphdr
  57. {
  58. u_int16_t source;
  59. u_int16_t dest;
  60. u_int16_t len;
  61. u_int16_t check;
  62. };
  63. #endif
  64. /* UDP socket options */
  65. #define UDP_CORK 1 /* Never send partially complete segments. */
  66. #define UDP_ENCAP 100 /* Set the socket to accept
  67. encapsulated packets. */
  68. /* UDP encapsulation types */
  69. #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */
  70. #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */
  71. #define UDP_ENCAP_L2TPINUDP 3 /* rfc2661 */
  72. #define SOL_UDP 17 /* sockopt level for UDP */
  73. #endif /* netinet/udp.h */