mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 21:24:08 +08:00
c7cbdbf29f
The SIOCGSTAMP/SIOCGSTAMPNS ioctl commands are implemented by many socket protocol handlers, and all of those end up calling the same sock_get_timestamp()/sock_get_timestampns() helper functions, which results in a lot of duplicate code. With the introduction of 64-bit time_t on 32-bit architectures, this gets worse, as we then need four different ioctl commands in each socket protocol implementation. To simplify that, let's add a new .gettstamp() operation in struct proto_ops, and move ioctl implementation into the common sock_ioctl()/compat_sock_ioctl_trans() functions that these all go through. We can reuse the sock_get_timestamp() implementation, but generalize it so it can deal with both native and compat mode, as well as timeval and timespec structures. Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Link: https://lore.kernel.org/lkml/CAK8P3a038aDQQotzua_QtKGhq8O9n+rdiz2=WDCp82ys8eUT+A@mail.gmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef NET_COMPAT_H
|
|
#define NET_COMPAT_H
|
|
|
|
|
|
struct sock;
|
|
|
|
#if defined(CONFIG_COMPAT)
|
|
|
|
#include <linux/compat.h>
|
|
|
|
struct compat_msghdr {
|
|
compat_uptr_t msg_name; /* void * */
|
|
compat_int_t msg_namelen;
|
|
compat_uptr_t msg_iov; /* struct compat_iovec * */
|
|
compat_size_t msg_iovlen;
|
|
compat_uptr_t msg_control; /* void * */
|
|
compat_size_t msg_controllen;
|
|
compat_uint_t msg_flags;
|
|
};
|
|
|
|
struct compat_mmsghdr {
|
|
struct compat_msghdr msg_hdr;
|
|
compat_uint_t msg_len;
|
|
};
|
|
|
|
struct compat_cmsghdr {
|
|
compat_size_t cmsg_len;
|
|
compat_int_t cmsg_level;
|
|
compat_int_t cmsg_type;
|
|
};
|
|
|
|
#else /* defined(CONFIG_COMPAT) */
|
|
/*
|
|
* To avoid compiler warnings:
|
|
*/
|
|
#define compat_msghdr msghdr
|
|
#define compat_mmsghdr mmsghdr
|
|
#endif /* defined(CONFIG_COMPAT) */
|
|
|
|
int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
|
|
struct sockaddr __user **, struct iovec **);
|
|
struct sock_fprog __user *get_compat_bpf_fprog(char __user *optval);
|
|
int put_cmsg_compat(struct msghdr*, int, int, int, void *);
|
|
|
|
int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
|
|
unsigned char *, int);
|
|
|
|
int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int,
|
|
int (*)(struct sock *, int, int, char __user *,
|
|
unsigned int));
|
|
int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *,
|
|
int (*)(struct sock *, int, int, char __user *,
|
|
int __user *));
|
|
|
|
#endif /* NET_COMPAT_H */
|