include/net/icmp.h

Source file repositories/reference/linux-study-clean/include/net/icmp.h

File Facts

System
Linux kernel
Corpus path
include/net/icmp.h
Extension
.h
Size
1945 bytes
Lines
65
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

struct icmp_err {
  int		errno;
  unsigned int	fatal:1;
};

extern const struct icmp_err icmp_err_convert[];
#define ICMP_INC_STATS(net, field)	SNMP_INC_STATS((net)->mib.icmp_statistics, field)
#define __ICMP_INC_STATS(net, field)	__SNMP_INC_STATS((net)->mib.icmp_statistics, field)
#define ICMPMSGOUT_INC_STATS(net, field)	SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field+256)
#define ICMPMSGIN_INC_STATS(net, field)		SNMP_INC_STATS_ATOMIC_LONG((net)->mib.icmpmsg_statistics, field)

struct dst_entry;
struct net_proto_family;
struct sk_buff;
struct net;

void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
		 const struct inet_skb_parm *parm);
static inline void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
{
	__icmp_send(skb_in, type, code, info, IPCB(skb_in));
}

#if IS_ENABLED(CONFIG_NF_NAT)
void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info);
#else
static inline void icmp_ndo_send(struct sk_buff *skb_in, int type, int code, __be32 info)
{
	struct inet_skb_parm parm;

	memset(&parm, 0, sizeof(parm));
	__icmp_send(skb_in, type, code, info, &parm);
}
#endif

int icmp_rcv(struct sk_buff *skb);
int icmp_err(struct sk_buff *skb, u32 info);
int icmp_init(void);
void icmp_out_count(struct net *net, unsigned char type);
bool icmp_build_probe(struct sk_buff *skb, struct icmphdr *icmphdr);

#endif	/* _ICMP_H */

Annotation

Implementation Notes