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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185/* SPDX-License-Identifier: GPL-2.0 *//* * linux/include/linux/sunrpc/addr.h * * Various routines for copying and comparing sockaddrs and for * converting them to and from presentation format. */#ifndef _LINUX_SUNRPC_ADDR_H#define _LINUX_SUNRPC_ADDR_H
#include <linux/socket.h>#include <linux/in.h>#include <linux/in6.h>#include <net/ipv6.h>
size_t rpc_ntop(const struct sockaddr *, char *, const size_t);size_t rpc_pton(struct net *, const char *, const size_t, struct sockaddr *, const size_t);char * rpc_sockaddr2uaddr(const struct sockaddr *, gfp_t);size_t rpc_uaddr2sockaddr(struct net *, const char *, const size_t, struct sockaddr *, const size_t);
static inline unsigned short rpc_get_port(const struct sockaddr *sap){ switch (sap->sa_family) { case AF_INET: return ntohs(((struct sockaddr_in *)sap)->sin_port); case AF_INET6: return ntohs(((struct sockaddr_in6 *)sap)->sin6_port); } return 0;}
static inline void rpc_set_port(struct sockaddr *sap, const unsigned short port){ switch (sap->sa_family) { case AF_INET: ((struct sockaddr_in *)sap)->sin_port = htons(port); break; case AF_INET6: ((struct sockaddr_in6 *)sap)->sin6_port = htons(port); break; }}
#define IPV6_SCOPE_DELIMITER '%'#define IPV6_SCOPE_ID_LEN sizeof("%nnnnnnnnnn")
static inline bool rpc_cmp_addr4(const struct sockaddr *sap1, const struct sockaddr *sap2){ const struct sockaddr_in *sin1 = (const struct sockaddr_in *)sap1; const struct sockaddr_in *sin2 = (const struct sockaddr_in *)sap2;
return sin1->sin_addr.s_addr == sin2->sin_addr.s_addr;}
static inline bool __rpc_copy_addr4(struct sockaddr *dst, const struct sockaddr *src){ const struct sockaddr_in *ssin = (struct sockaddr_in *) src; struct sockaddr_in *dsin = (struct sockaddr_in *) dst;
dsin->sin_family = ssin->sin_family; dsin->sin_addr.s_addr = ssin->sin_addr.s_addr; return true;}
#if IS_ENABLED(CONFIG_IPV6)static inline bool rpc_cmp_addr6(const struct sockaddr *sap1, const struct sockaddr *sap2){ const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sap1; const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sap2;
if (!ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr)) return false; else if (ipv6_addr_type(&sin1->sin6_addr) & IPV6_ADDR_LINKLOCAL) return sin1->sin6_scope_id == sin2->sin6_scope_id;
return true;}
static inline bool __rpc_copy_addr6(struct sockaddr *dst, const struct sockaddr *src){ const struct sockaddr_in6 *ssin6 = (const struct sockaddr_in6 *) src; struct sockaddr_in6 *dsin6 = (struct sockaddr_in6 *) dst;
dsin6->sin6_family = ssin6->sin6_family; dsin6->sin6_addr = ssin6->sin6_addr; dsin6->sin6_scope_id = ssin6->sin6_scope_id; return true;}#else /* !(IS_ENABLED(CONFIG_IPV6) */static inline bool rpc_cmp_addr6(const struct sockaddr *sap1, const struct sockaddr *sap2){ return false;}
static inline bool __rpc_copy_addr6(struct sockaddr *dst, const struct sockaddr *src){ return false;}#endif /* !(IS_ENABLED(CONFIG_IPV6) */
/** * rpc_cmp_addr - compare the address portion of two sockaddrs. * @sap1: first sockaddr * @sap2: second sockaddr * * Just compares the family and address portion. Ignores port, but * compares the scope if it's a link-local address. * * Returns true if the addrs are equal, false if they aren't. */static inline bool rpc_cmp_addr(const struct sockaddr *sap1, const struct sockaddr *sap2){ if (sap1->sa_family == sap2->sa_family) { 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 */