1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef NET_COMPAT_H 3 #define NET_COMPAT_H 4 5 6 struct sock; 7 8 #if defined(CONFIG_COMPAT) 9 10 #include <linux/compat.h> 11 12 struct compat_msghdr { 13 compat_uptr_t msg_name; /* void * */ 14 compat_int_t msg_namelen; 15 compat_uptr_t msg_iov; /* struct compat_iovec * */ 16 compat_size_t msg_iovlen; 17 compat_uptr_t msg_control; /* void * */ 18 compat_size_t msg_controllen; 19 compat_uint_t msg_flags; 20 }; 21 22 struct compat_mmsghdr { 23 struct compat_msghdr msg_hdr; 24 compat_uint_t msg_len; 25 }; 26 27 struct compat_cmsghdr { 28 compat_size_t cmsg_len; 29 compat_int_t cmsg_level; 30 compat_int_t cmsg_type; 31 }; 32 33 struct compat_rtentry { 34 u32 rt_pad1; 35 struct sockaddr rt_dst; /* target address */ 36 struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */ 37 struct sockaddr rt_genmask; /* target network mask (IP) */ 38 unsigned short rt_flags; 39 short rt_pad2; 40 u32 rt_pad3; 41 unsigned char rt_tos; 42 unsigned char rt_class; 43 short rt_pad4; 44 short rt_metric; /* +1 for binary compatibility! */ 45 compat_uptr_t rt_dev; /* forcing the device at add */ 46 u32 rt_mtu; /* per route MTU/Window */ 47 u32 rt_window; /* Window clamping */ 48 unsigned short rt_irtt; /* Initial RTT */ 49 }; 50 51 #else /* defined(CONFIG_COMPAT) */ 52 /* 53 * To avoid compiler warnings: 54 */ 55 #define compat_msghdr msghdr 56 #define compat_mmsghdr mmsghdr 57 #endif /* defined(CONFIG_COMPAT) */ 58 59 int __get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg, 60 struct sockaddr __user **save_addr, compat_uptr_t *ptr, 61 compat_size_t *len); 62 int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *, 63 struct sockaddr __user **, struct iovec **); 64 int put_cmsg_compat(struct msghdr*, int, int, int, void *); 65 66 int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, 67 unsigned char *, int); 68 69 struct compat_group_req { 70 __u32 gr_interface; 71 struct __kernel_sockaddr_storage gr_group 72 __aligned(4); 73 } __packed; 74 75 struct compat_group_source_req { 76 __u32 gsr_interface; 77 struct __kernel_sockaddr_storage gsr_group 78 __aligned(4); 79 struct __kernel_sockaddr_storage gsr_source 80 __aligned(4); 81 } __packed; 82 83 struct compat_group_filter { 84 __u32 gf_interface; 85 struct __kernel_sockaddr_storage gf_group 86 __aligned(4); 87 __u32 gf_fmode; 88 __u32 gf_numsrc; 89 struct __kernel_sockaddr_storage gf_slist[1] 90 __aligned(4); 91 } __packed; 92 93 #endif /* NET_COMPAT_H */ 94