1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_LINUX_SOCKET_H 3*4882a593Smuzhiyun #define _UAPI_LINUX_SOCKET_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * Desired design of maximum size and alignment (see RFC2553) 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun #define _K_SS_MAXSIZE 128 /* Implementation specific max size */ 9*4882a593Smuzhiyun #define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *)) 10*4882a593Smuzhiyun /* Implementation specific desired alignment */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun typedef unsigned short __kernel_sa_family_t; 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun struct __kernel_sockaddr_storage { 15*4882a593Smuzhiyun __kernel_sa_family_t ss_family; /* address family */ 16*4882a593Smuzhiyun /* Following field(s) are implementation specific */ 17*4882a593Smuzhiyun char __data[_K_SS_MAXSIZE - sizeof(unsigned short)]; 18*4882a593Smuzhiyun /* space to achieve desired size, */ 19*4882a593Smuzhiyun /* _SS_MAXSIZE value minus size of ss_family */ 20*4882a593Smuzhiyun } __attribute__ ((aligned(_K_SS_ALIGNSIZE))); /* force desired alignment */ 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun #define sockaddr_storage __kernel_sockaddr_storage 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun #endif /* _UAPI_LINUX_SOCKET_H */ 25