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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576/* SPDX-License-Identifier: GPL-2.0-or-later *//* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions for the ICMP protocol. * * Version: @(#)icmp.h 1.0.3 04/28/93 * * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> */#ifndef _LINUX_ICMP_H#define _LINUX_ICMP_H
#include <linux/skbuff.h>#include <uapi/linux/icmp.h>#include <uapi/linux/errqueue.h>
static inline struct icmphdr *icmp_hdr(const struct sk_buff *skb){ return (struct icmphdr *)skb_transport_header(skb);}
static inline bool icmp_is_err(int type){ switch (type) { case ICMP_DEST_UNREACH: case ICMP_SOURCE_QUENCH: case ICMP_REDIRECT: case ICMP_TIME_EXCEEDED: case ICMP_PARAMETERPROB: return true; }
return false;}
void ip_icmp_error_rfc4884(const struct sk_buff *skb, struct sock_ee_data_rfc4884 *out, int thlen, int off);
/* RFC 4884 */#define ICMP_EXT_ORIG_DGRAM_MIN_LEN 128#define ICMP_EXT_VERSION_2 2
/* ICMP Extension Object Classes */#define ICMP_EXT_OBJ_CLASS_IIO 2 /* RFC 5837 */
/* Interface Information Object - RFC 5837 */enum { ICMP_EXT_CTYPE_IIO_ROLE_IIF,};
#define ICMP_EXT_CTYPE_IIO_ROLE(ROLE) ((ROLE) << 6)#define ICMP_EXT_CTYPE_IIO_MTU BIT(0)#define ICMP_EXT_CTYPE_IIO_NAME BIT(1)#define ICMP_EXT_CTYPE_IIO_IPADDR BIT(2)#define ICMP_EXT_CTYPE_IIO_IFINDEX BIT(3)
struct icmp_ext_iio_name_subobj { u8 len; char name[IFNAMSIZ];};
enum { /* RFC 5837 - Incoming IP Interface Role */ ICMP_ERR_EXT_IIO_IIF, /* Add new constants above. Used by "icmp_errors_extension_mask" * sysctl. */ ICMP_ERR_EXT_COUNT,};
#endif /* _LINUX_ICMP_H */