sys/netinet/udp_var.h

http://www.minix3.org/ · C Header · 108 lines · 56 code · 11 blank · 41 comment · 0 complexity · 220e6e67b1bca0a79a4cb2bc239b6439 MD5 · raw file 

    

  1. /*	$NetBSD: udp_var.h,v 1.37 2011/09/24 17:18:17 christos Exp $	*/
    2. 

  2. 

  3. /*
    4. 

  4.  * Copyright (c) 1982, 1986, 1989, 1993
    5. 

  5.  *	The Regents of the University of California.  All rights reserved.
    6. 

  6.  *
    7. 

  7.  * Redistribution and use in source and binary forms, with or without
    8. 

  8.  * modification, are permitted provided that the following conditions
    9. 

  9.  * are met:
    10. 

  10.  * 1. Redistributions of source code must retain the above copyright
    11. 

  11.  *    notice, this list of conditions and the following disclaimer.
    12. 

  12.  * 2. Redistributions in binary form must reproduce the above copyright
    13. 

  13.  *    notice, this list of conditions and the following disclaimer in the
    14. 

  14.  *    documentation and/or other materials provided with the distribution.
    15. 

  15.  * 3. Neither the name of the University nor the names of its contributors
    16. 

  16.  *    may be used to endorse or promote products derived from this software
    17. 

  17.  *    without specific prior written permission.
    18. 

  18.  *
    19. 

  19.  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
    20. 

  20.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    21. 

  21.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    22. 

  22.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
    23. 

  23.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    24. 

  24.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    25. 

  25.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    26. 

  26.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    27. 

  27.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    28. 

  28.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    29. 

  29.  * SUCH DAMAGE.
    30. 

  30.  *
    31. 

  31.  *	@(#)udp_var.h	8.1 (Berkeley) 6/10/93
    32. 

  32.  */
    33. 

  33. 

  34. #ifndef _NETINET_UDP_VAR_H_
    35. 

  35. #define _NETINET_UDP_VAR_H_
    36. 

  36. 

  37. /*
    38. 

  38.  * UDP kernel structures and variables.
    39. 

  39.  */
    40. 

  40. struct	udpiphdr {
    41. 

  41. 	struct 	ipovly ui_i;		/* overlaid ip structure */
    42. 

  42. 	struct	udphdr ui_u;		/* udp header */
    43. 

  43. } __packed;
    44. 

  44. #define	ui_x1		ui_i.ih_x1
    45. 

  45. #define	ui_pr		ui_i.ih_pr
    46. 

  46. #define	ui_len		ui_i.ih_len
    47. 

  47. #define	ui_src		ui_i.ih_src
    48. 

  48. #define	ui_dst		ui_i.ih_dst
    49. 

  49. #define	ui_sport	ui_u.uh_sport
    50. 

  50. #define	ui_dport	ui_u.uh_dport
    51. 

  51. #define	ui_ulen		ui_u.uh_ulen
    52. 

  52. #define	ui_sum		ui_u.uh_sum
    53. 

  53. 

  54. /*
    55. 

  55.  * UDP statistics.
    56. 

  56.  * Each counter is an unsigned 64-bit value.
    57. 

  57.  */
    58. 

  58. #define	UDP_STAT_IPACKETS	0	/* total input packets */
    59. 

  59. #define	UDP_STAT_HDROPS		1	/* packet shorter than header */
    60. 

  60. #define	UDP_STAT_BADSUM		2	/* checksum error */
    61. 

  61. #define	UDP_STAT_BADLEN		3	/* data length larger than packet */
    62. 

  62. #define	UDP_STAT_NOPORT		4	/* no socket on port */
    63. 

  63. #define	UDP_STAT_NOPORTBCAST	5	/* of above, arrived as broadcast */
    64. 

  64. #define	UDP_STAT_FULLSOCK	6	/* not delivered, input socket full */
    65. 

  65. #define	UDP_STAT_PCBHASHMISS	7	/* input packets missing PCB hash */
    66. 

  66. #define	UDP_STAT_OPACKETS	8	/* total output packets */
    67. 

  67. 

  68. #define	UDP_NSTATS		9
    69. 

  69. 

  70. /*
    71. 

  71.  * Names for UDP sysctl objects
    72. 

  72.  */
    73. 

  73. #define	UDPCTL_CHECKSUM		1	/* checksum UDP packets */
    74. 

  74. #define	UDPCTL_SENDSPACE	2	/* default send buffer */
    75. 

  75. #define	UDPCTL_RECVSPACE	3	/* default recv buffer */
    76. 

  76. #define	UDPCTL_LOOPBACKCKSUM	4	/* do UDP checksum on loopback */
    77. 

  77. #define	UDPCTL_STATS		5	/* UDP statistics */
    78. 

  78. #define	UDPCTL_RFC6056          6       /* RFC 6056 algorithm selection */
    79. 

  79. #define	UDPCTL_MAXID		7
    80. 

  80. 

  81. #define UDPCTL_NAMES { \
    82. 

  82. 	{ 0, 0 }, \
    83. 

  83. 	{ "checksum", CTLTYPE_INT }, \
    84. 

  84. 	{ "sendspace", CTLTYPE_INT }, \
    85. 

  85. 	{ "recvspace", CTLTYPE_INT }, \
    86. 

  86. 	{ "do_loopback_cksum", CTLTYPE_INT }, \
    87. 

  87. 	{ "stats", CTLTYPE_STRUCT }, \
    88. 

  88. 	{ "rfc6056", CTLTYPE_INT }, \
    89. 

  89. }
    90. 

  90. 

  91. #ifdef _KERNEL
    92. 

  92. extern	struct	inpcbtable udbtable;
    93. 

  93. 

  94. void	 *udp_ctlinput(int, const struct sockaddr *, void *);
    95. 

  95. int	 udp_ctloutput(int, struct socket *, struct sockopt *);
    96. 

  96. void	 udp_init(void);
    97. 

  97. void	 udp_input(struct mbuf *, ...);
    98. 

  98. int	 udp_output(struct mbuf *, ...);
    99. 

  99. int	 udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
    100. 

  100. int	 udp_usrreq(struct socket *,
    101. 

  101. 	    int, struct mbuf *, struct mbuf *, struct mbuf *, struct lwp *);
    102. 

  102. 

  103. int	udp_input_checksum(int af, struct mbuf *, const struct udphdr *, int,
    104. 

  104. 	    int);
    105. 

  105. void	udp_statinc(u_int);
    106. 

  106. #endif /* _KERNEL */
    107. 

  107. 

  108. #endif /* !_NETINET_UDP_VAR_H_ */
    109.