bpf/linux/socket.h

0001 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
0002 #ifndef _UAPI_LINUX_SOCKET_H
0003 #define _UAPI_LINUX_SOCKET_H
0004
0005 /*
0006  * Desired design of maximum size and alignment (see RFC2553)
0007  */
0008 #define _K_SS_MAXSIZE   128 /* Implementation specific max size */
0009 #define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *))
0010                 /* Implementation specific desired alignment */
0011
0012 typedef unsigned short __kernel_sa_family_t;
0013
0014 struct __kernel_sockaddr_storage {
0015     __kernel_sa_family_t    ss_family;      /* address family */
0016     /* Following field(s) are implementation specific */
0017     char        __data[_K_SS_MAXSIZE - sizeof(unsigned short)];
0018                 /* space to achieve desired size, */
0019                 /* _SS_MAXSIZE value minus size of ss_family */
0020 } __attribute__ ((aligned(_K_SS_ALIGNSIZE)));   /* force desired alignment */
0021
0022 #define sockaddr_storage __kernel_sockaddr_storage
0023
0024 #endif /* _UAPI_LINUX_SOCKET_H */