1 /* 2 * (C) 2001 Clemson University and The University of Chicago 3 * 4 * See COPYING in top-level directory. 5 */ 6 7 /* 8 * Definitions of downcalls used in Linux kernel module. 9 */ 10 11 #ifndef __DOWNCALL_H 12 #define __DOWNCALL_H 13 14 /* 15 * Sanitized the device-client core interaction 16 * for clean 32-64 bit usage 17 */ 18 struct orangefs_io_response { 19 __s64 amt_complete; 20 }; 21 22 struct orangefs_lookup_response { 23 struct orangefs_object_kref refn; 24 }; 25 26 struct orangefs_create_response { 27 struct orangefs_object_kref refn; 28 }; 29 30 struct orangefs_symlink_response { 31 struct orangefs_object_kref refn; 32 }; 33 34 struct orangefs_getattr_response { 35 struct ORANGEFS_sys_attr_s attributes; 36 char link_target[ORANGEFS_NAME_MAX]; 37 }; 38 39 struct orangefs_mkdir_response { 40 struct orangefs_object_kref refn; 41 }; 42 43 /* 44 * duplication of some system interface structures so that I don't have 45 * to allocate extra memory 46 */ 47 struct orangefs_dirent { 48 char *d_name; 49 int d_length; 50 struct orangefs_khandle khandle; 51 }; 52 53 struct orangefs_statfs_response { 54 __s64 block_size; 55 __s64 blocks_total; 56 __s64 blocks_avail; 57 __s64 files_total; 58 __s64 files_avail; 59 }; 60 61 struct orangefs_fs_mount_response { 62 __s32 fs_id; 63 __s32 id; 64 struct orangefs_khandle root_khandle; 65 }; 66 67 /* the getxattr response is the attribute value */ 68 struct orangefs_getxattr_response { 69 __s32 val_sz; 70 __s32 __pad1; 71 char val[ORANGEFS_MAX_XATTR_VALUELEN]; 72 }; 73 74 /* the listxattr response is an array of attribute names */ 75 struct orangefs_listxattr_response { 76 __s32 returned_count; 77 __s32 __pad1; 78 __u64 token; 79 char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN]; 80 __s32 keylen; 81 __s32 __pad2; 82 __s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN]; 83 }; 84 85 struct orangefs_param_response { 86 __s64 value; 87 }; 88 89 #define PERF_COUNT_BUF_SIZE 4096 90 struct orangefs_perf_count_response { 91 char buffer[PERF_COUNT_BUF_SIZE]; 92 }; 93 94 #define FS_KEY_BUF_SIZE 4096 95 struct orangefs_fs_key_response { 96 __s32 fs_keylen; 97 __s32 __pad1; 98 char fs_key[FS_KEY_BUF_SIZE]; 99 }; 100 101 struct orangefs_downcall_s { 102 __s32 type; 103 __s32 status; 104 /* currently trailer is used only by readdir */ 105 __s64 trailer_size; 106 char *trailer_buf; 107 108 union { 109 struct orangefs_io_response io; 110 struct orangefs_lookup_response lookup; 111 struct orangefs_create_response create; 112 struct orangefs_symlink_response sym; 113 struct orangefs_getattr_response getattr; 114 struct orangefs_mkdir_response mkdir; 115 struct orangefs_statfs_response statfs; 116 struct orangefs_fs_mount_response fs_mount; 117 struct orangefs_getxattr_response getxattr; 118 struct orangefs_listxattr_response listxattr; 119 struct orangefs_param_response param; 120 struct orangefs_perf_count_response perf_count; 121 struct orangefs_fs_key_response fs_key; 122 } resp; 123 }; 124 125 struct orangefs_readdir_response_s { 126 __u64 token; 127 __u64 directory_version; 128 __u32 __pad2; 129 __u32 orangefs_dirent_outcount; 130 struct orangefs_dirent *dirent_array; 131 }; 132 133 #endif /* __DOWNCALL_H */ 134