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Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

icmp.h (4785B)

    

  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. /*
  3.  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  4.  *		operating system.  INET is implemented using the  BSD Socket
  5.  *		interface as the means of communication with the user level.
  6.  *
  7.  *		Definitions for the ICMP protocol.
  8.  *
  9.  * Version:	@(#)icmp.h	1.0.3	04/28/93
  10.  *
  11.  * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  12.  *
  13.  *		This program is free software; you can redistribute it and/or
  14.  *		modify it under the terms of the GNU General Public License
  15.  *		as published by the Free Software Foundation; either version
  16.  *		2 of the License, or (at your option) any later version.
  17.  */
  18. #ifndef _LINUX_ICMP_H
  19. #define _LINUX_ICMP_H
  21. #include <linux/types.h>
  22. #include <asm/byteorder.h>
  23. #include <linux/if.h>
  24. #include <linux/in6.h>
  26. #define ICMP_ECHOREPLY		0	/* Echo Reply			*/
  27. #define ICMP_DEST_UNREACH	3	/* Destination Unreachable	*/
  28. #define ICMP_SOURCE_QUENCH	4	/* Source Quench		*/
  29. #define ICMP_REDIRECT		5	/* Redirect (change route)	*/
  30. #define ICMP_ECHO		8	/* Echo Request			*/
  31. #define ICMP_TIME_EXCEEDED	11	/* Time Exceeded		*/
  32. #define ICMP_PARAMETERPROB	12	/* Parameter Problem		*/
  33. #define ICMP_TIMESTAMP		13	/* Timestamp Request		*/
  34. #define ICMP_TIMESTAMPREPLY	14	/* Timestamp Reply		*/
  35. #define ICMP_INFO_REQUEST	15	/* Information Request		*/
  36. #define ICMP_INFO_REPLY		16	/* Information Reply		*/
  37. #define ICMP_ADDRESS		17	/* Address Mask Request		*/
  38. #define ICMP_ADDRESSREPLY	18	/* Address Mask Reply		*/
  39. #define NR_ICMP_TYPES		18
  42. /* Codes for UNREACH. */
  43. #define ICMP_NET_UNREACH	0	/* Network Unreachable		*/
  44. #define ICMP_HOST_UNREACH	1	/* Host Unreachable		*/
  45. #define ICMP_PROT_UNREACH	2	/* Protocol Unreachable		*/
  46. #define ICMP_PORT_UNREACH	3	/* Port Unreachable		*/
  47. #define ICMP_FRAG_NEEDED	4	/* Fragmentation Needed/DF set	*/
  48. #define ICMP_SR_FAILED		5	/* Source Route failed		*/
  49. #define ICMP_NET_UNKNOWN	6
  50. #define ICMP_HOST_UNKNOWN	7
  51. #define ICMP_HOST_ISOLATED	8
  52. #define ICMP_NET_ANO		9
  53. #define ICMP_HOST_ANO		10
  54. #define ICMP_NET_UNR_TOS	11
  55. #define ICMP_HOST_UNR_TOS	12
  56. #define ICMP_PKT_FILTERED	13	/* Packet filtered */
  57. #define ICMP_PREC_VIOLATION	14	/* Precedence violation */
  58. #define ICMP_PREC_CUTOFF	15	/* Precedence cut off */
  59. #define NR_ICMP_UNREACH		15	/* instead of hardcoding immediate value */
  61. /* Codes for REDIRECT. */
  62. #define ICMP_REDIR_NET		0	/* Redirect Net			*/
  63. #define ICMP_REDIR_HOST		1	/* Redirect Host		*/
  64. #define ICMP_REDIR_NETTOS	2	/* Redirect Net for TOS		*/
  65. #define ICMP_REDIR_HOSTTOS	3	/* Redirect Host for TOS	*/
  67. /* Codes for TIME_EXCEEDED. */
  68. #define ICMP_EXC_TTL		0	/* TTL count exceeded		*/
  69. #define ICMP_EXC_FRAGTIME	1	/* Fragment Reass time exceeded	*/
  71. /* Codes for EXT_ECHO (PROBE) */
  72. #define ICMP_EXT_ECHO			42
  73. #define ICMP_EXT_ECHOREPLY		43
  74. #define ICMP_EXT_CODE_MAL_QUERY		1	/* Malformed Query */
  75. #define ICMP_EXT_CODE_NO_IF		2	/* No such Interface */
  76. #define ICMP_EXT_CODE_NO_TABLE_ENT	3	/* No such Table Entry */
  77. #define ICMP_EXT_CODE_MULT_IFS		4	/* Multiple Interfaces Satisfy Query */
  79. /* Constants for EXT_ECHO (PROBE) */
  80. #define ICMP_EXT_ECHOREPLY_ACTIVE	(1 << 2)/* active bit in reply message */
  81. #define ICMP_EXT_ECHOREPLY_IPV4		(1 << 1)/* ipv4 bit in reply message */
  82. #define ICMP_EXT_ECHOREPLY_IPV6		1	/* ipv6 bit in reply message */
  83. #define ICMP_EXT_ECHO_CTYPE_NAME	1
  84. #define ICMP_EXT_ECHO_CTYPE_INDEX	2
  85. #define ICMP_EXT_ECHO_CTYPE_ADDR	3
  86. #define ICMP_AFI_IP			1	/* Address Family Identifier for ipv4 */
  87. #define ICMP_AFI_IP6			2	/* Address Family Identifier for ipv6 */
  89. struct icmphdr {
  90.   __u8		type;
  91.   __u8		code;
  92.   __sum16	checksum;
  93.   union {
  94. 	struct {
  95. 		__be16	id;
  96. 		__be16	sequence;
  97. 	} echo;
  98. 	__be32	gateway;
  99. 	struct {
  100. 		__be16	__unused;
  101. 		__be16	mtu;
  102. 	} frag;
  103. 	__u8	reserved[4];
  104.   } un;
  105. };
  108. /*
  109.  *	constants for (set|get)sockopt
  110.  */
  112. #define ICMP_FILTER			1
  114. struct icmp_filter {
  115. 	__u32		data;
  116. };
  118. /* RFC 4884 extension struct: one per message */
  119. struct icmp_ext_hdr {
  120. #if defined(__LITTLE_ENDIAN_BITFIELD)
  121. 	__u8		reserved1:4,
  122. 			version:4;
  123. #elif defined(__BIG_ENDIAN_BITFIELD)
  124. 	__u8		version:4,
  125. 			reserved1:4;
  126. #else
  127. #error	"Please fix <asm/byteorder.h>"
  128. #endif
  129. 	__u8		reserved2;
  130. 	__sum16		checksum;
  131. };
  133. /* RFC 4884 extension object header: one for each object */
  134. struct icmp_extobj_hdr {
  135. 	__be16		length;
  136. 	__u8		class_num;
  137. 	__u8		class_type;
  138. };
  140. /* RFC 8335: 2.1 Header for c-type 3 payload */
  141. struct icmp_ext_echo_ctype3_hdr {
  142. 	__be16		afi;
  143. 	__u8		addrlen;
  144. 	__u8		reserved;
  145. };
  147. /* RFC 8335: 2.1 Interface Identification Object */
  148. struct icmp_ext_echo_iio {
  149. 	struct icmp_extobj_hdr extobj_hdr;
  150. 	union {
  151. 		char name[IFNAMSIZ];
  152. 		__be32 ifindex;
  153. 		struct {
  154. 			struct icmp_ext_echo_ctype3_hdr ctype3_hdr;
  155. 			union {
  156. 				__be32		ipv4_addr;
  157. 				struct in6_addr	ipv6_addr;
  158. 			} ip_addr;
  159. 		} addr;
  160. 	} ident;
  161. };
  162. #endif /* _LINUX_ICMP_H */