include/trace/events/neigh.h

Source file repositories/reference/linux-study-clean/include/trace/events/neigh.h

File Facts

System
Linux kernel
Corpus path
include/trace/events/neigh.h
Extension
.h
Size
7021 bytes
Lines
256
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

if (tbl->family == AF_INET6) {
			struct in6_addr *pin6;

			pin6 = (struct in6_addr *)__entry->primary_key6;
			*pin6 = *(struct in6_addr *)pkey;
		}
#endif
	),

	TP_printk("family %d dev %s entries %d primary_key4 %pI4 primary_key6 %pI6c created %d gc_exempt %d",
		  __entry->family, __get_str(dev), __entry->entries,
		  __entry->primary_key4, __entry->primary_key6,
		  __entry->created, __entry->gc_exempt)
);

TRACE_EVENT(neigh_update,

	TP_PROTO(struct neighbour *n, const u8 *lladdr, u8 new,
		 u32 flags, u32 nlmsg_pid),

	TP_ARGS(n, lladdr, new, flags, nlmsg_pid),

	TP_STRUCT__entry(
		__field(u32, family)
		__string(dev, (n->dev ? n->dev->name : "NULL"))
		__array(u8, lladdr, MAX_ADDR_LEN)
		__field(u8, lladdr_len)
		__field(u8, flags)
		__field(u8, nud_state)
		__field(u8, type)
		__field(u8, dead)
		__field(int, refcnt)
		__array(__u8, primary_key4, 4)
		__array(__u8, primary_key6, 16)
		__field(unsigned long, confirmed)
		__field(unsigned long, updated)
		__field(unsigned long, used)
		__array(u8, new_lladdr, MAX_ADDR_LEN)
		__field(u8, new_state)
		__field(u32, update_flags)
		__field(u32, pid)
	),

	TP_fast_assign(
		int lladdr_len = (n->dev ? n->dev->addr_len : MAX_ADDR_LEN);
		struct in6_addr *pin6;
		__be32 *p32;

		__entry->family = n->tbl->family;
		__assign_str(dev);
		__entry->lladdr_len = lladdr_len;
		memcpy(__entry->lladdr, n->ha, lladdr_len);
		__entry->flags = n->flags;
		__entry->nud_state = n->nud_state;
		__entry->type = n->type;
		__entry->dead = n->dead;
		__entry->refcnt = refcount_read(&n->refcnt);
		pin6 = (struct in6_addr *)__entry->primary_key6;
		p32 = (__be32 *)__entry->primary_key4;

		if (n->tbl->family == AF_INET)
			*p32 = *(__be32 *)n->primary_key;
		else
			*p32 = 0;

#if IS_ENABLED(CONFIG_IPV6)
		if (n->tbl->family == AF_INET6) {
			pin6 = (struct in6_addr *)__entry->primary_key6;
			*pin6 = *(struct in6_addr *)n->primary_key;
		} else
#endif
		{
			ipv6_addr_set_v4mapped(*p32, pin6);
		}
		__entry->confirmed = n->confirmed;
		__entry->updated = n->updated;
		__entry->used = n->used;
		if (lladdr)
			memcpy(__entry->new_lladdr, lladdr, lladdr_len);
		__entry->new_state = new;
		__entry->update_flags = flags;
		__entry->pid = nlmsg_pid;
	),

	TP_printk("family %d dev %s lladdr %s flags %02x nud_state %s type %02x "
		  "dead %d refcnt %d primary_key4 %pI4 primary_key6 %pI6c "
		  "confirmed %lu updated %lu used %lu new_lladdr %s "
		  "new_state %s update_flags %02x pid %d",
		  __entry->family, __get_str(dev),
		  __print_hex_str(__entry->lladdr, __entry->lladdr_len),

Annotation

Implementation Notes