include/linux/sunrpc/addr.h

Source file repositories/reference/linux-study-clean/include/linux/sunrpc/addr.h

File Facts

System
Linux kernel
Corpus path
include/linux/sunrpc/addr.h
Extension
.h
Size
5063 bytes
Lines
185
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

switch (sap1->sa_family) {
		case AF_INET:
			return rpc_cmp_addr4(sap1, sap2);
		case AF_INET6:
			return rpc_cmp_addr6(sap1, sap2);
		}
	}
	return false;
}

/**
 * rpc_cmp_addr_port - compare the address and port number of two sockaddrs.
 * @sap1: first sockaddr
 * @sap2: second sockaddr
 */
static inline bool rpc_cmp_addr_port(const struct sockaddr *sap1,
				     const struct sockaddr *sap2)
{
	if (!rpc_cmp_addr(sap1, sap2))
		return false;
	return rpc_get_port(sap1) == rpc_get_port(sap2);
}

/**
 * rpc_copy_addr - copy the address portion of one sockaddr to another
 * @dst: destination sockaddr
 * @src: source sockaddr
 *
 * Just copies the address portion and family. Ignores port, scope, etc.
 * Caller is responsible for making certain that dst is large enough to hold
 * the address in src. Returns true if address family is supported. Returns
 * false otherwise.
 */
static inline bool rpc_copy_addr(struct sockaddr *dst,
				 const struct sockaddr *src)
{
	switch (src->sa_family) {
	case AF_INET:
		return __rpc_copy_addr4(dst, src);
	case AF_INET6:
		return __rpc_copy_addr6(dst, src);
	}
	return false;
}

/**
 * rpc_get_scope_id - return scopeid for a given sockaddr
 * @sa: sockaddr to get scopeid from
 *
 * Returns the value of the sin6_scope_id for AF_INET6 addrs, or 0 if
 * not an AF_INET6 address.
 */
static inline u32 rpc_get_scope_id(const struct sockaddr *sa)
{
	if (sa->sa_family != AF_INET6)
		return 0;

	return ((struct sockaddr_in6 *) sa)->sin6_scope_id;
}

#endif /* _LINUX_SUNRPC_ADDR_H */

Annotation

Implementation Notes