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72c531f8ef
this is in preparation for multishot receive from io_uring, where it needs to have access to the original struct user_msghdr. functionally this should be a no-op. Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Dylan Yudaken <dylany@fb.com> Link: https://lore.kernel.org/r/20220714110258.1336200-3-dylany@fb.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef NET_COMPAT_H
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#define NET_COMPAT_H
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struct sock;
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#include <linux/compat.h>
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struct compat_msghdr {
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compat_uptr_t msg_name; /* void * */
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compat_int_t msg_namelen;
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compat_uptr_t msg_iov; /* struct compat_iovec * */
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compat_size_t msg_iovlen;
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compat_uptr_t msg_control; /* void * */
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compat_size_t msg_controllen;
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compat_uint_t msg_flags;
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};
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struct compat_mmsghdr {
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struct compat_msghdr msg_hdr;
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compat_uint_t msg_len;
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};
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struct compat_cmsghdr {
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compat_size_t cmsg_len;
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compat_int_t cmsg_level;
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compat_int_t cmsg_type;
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};
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struct compat_rtentry {
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u32 rt_pad1;
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struct sockaddr rt_dst; /* target address */
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struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
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struct sockaddr rt_genmask; /* target network mask (IP) */
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unsigned short rt_flags;
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short rt_pad2;
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u32 rt_pad3;
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unsigned char rt_tos;
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unsigned char rt_class;
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short rt_pad4;
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short rt_metric; /* +1 for binary compatibility! */
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compat_uptr_t rt_dev; /* forcing the device at add */
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u32 rt_mtu; /* per route MTU/Window */
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u32 rt_window; /* Window clamping */
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unsigned short rt_irtt; /* Initial RTT */
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};
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int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr *msg,
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struct sockaddr __user **save_addr);
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int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *,
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struct sockaddr __user **, struct iovec **);
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int put_cmsg_compat(struct msghdr*, int, int, int, void *);
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int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
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unsigned char *, int);
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struct compat_group_req {
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__u32 gr_interface;
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struct __kernel_sockaddr_storage gr_group
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__aligned(4);
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} __packed;
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struct compat_group_source_req {
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__u32 gsr_interface;
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struct __kernel_sockaddr_storage gsr_group
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__aligned(4);
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struct __kernel_sockaddr_storage gsr_source
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__aligned(4);
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} __packed;
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struct compat_group_filter {
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union {
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struct {
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__u32 gf_interface_aux;
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struct __kernel_sockaddr_storage gf_group_aux
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__aligned(4);
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__u32 gf_fmode_aux;
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__u32 gf_numsrc_aux;
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struct __kernel_sockaddr_storage gf_slist[1]
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__aligned(4);
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} __packed;
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struct {
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__u32 gf_interface;
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struct __kernel_sockaddr_storage gf_group
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__aligned(4);
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__u32 gf_fmode;
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__u32 gf_numsrc;
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struct __kernel_sockaddr_storage gf_slist_flex[]
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__aligned(4);
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} __packed;
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};
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} __packed;
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#endif /* NET_COMPAT_H */
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