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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 | /* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2018 Samsung Electronics Co., Ltd. * * linux-ksmbd-devel@lists.sourceforge.net */ #ifndef _LINUX_KSMBD_SERVER_H #define _LINUX_KSMBD_SERVER_H #include <linux/types.h> /* * This is a userspace ABI to communicate data between ksmbd and user IPC * daemon using netlink. This is added to track and cache user account DB * and share configuration info from userspace. * * - KSMBD_EVENT_HEARTBEAT_REQUEST(ksmbd_heartbeat) * This event is to check whether user IPC daemon is alive. If user IPC * daemon is dead, ksmbd keep existing connection till disconnecting and * new connection will be denied. * * - KSMBD_EVENT_STARTING_UP(ksmbd_startup_request) * This event is to receive the information that initializes the ksmbd * server from the user IPC daemon and to start the server. The global * section parameters are given from smb.conf as initialization * information. * * - KSMBD_EVENT_SHUTTING_DOWN(ksmbd_shutdown_request) * This event is to shutdown ksmbd server. * * - KSMBD_EVENT_LOGIN_REQUEST/RESPONSE(ksmbd_login_request/response) * This event is to get user account info to user IPC daemon. * * - KSMBD_EVENT_SHARE_CONFIG_REQUEST/RESPONSE(ksmbd_share_config_request/response) * This event is to get net share configuration info. * * - KSMBD_EVENT_TREE_CONNECT_REQUEST/RESPONSE(ksmbd_tree_connect_request/response) * This event is to get session and tree connect info. * * - KSMBD_EVENT_TREE_DISCONNECT_REQUEST(ksmbd_tree_disconnect_request) * This event is to send tree disconnect info to user IPC daemon. * * - KSMBD_EVENT_LOGOUT_REQUEST(ksmbd_logout_request) * This event is to send logout request to user IPC daemon. * * - KSMBD_EVENT_RPC_REQUEST/RESPONSE(ksmbd_rpc_command) * This event is to make DCE/RPC request like srvsvc, wkssvc, lsarpc, * samr to be processed in userspace. * * - KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST/RESPONSE(ksmbd_spnego_authen_request/response) * This event is to make kerberos authentication to be processed in * userspace. */ #define KSMBD_GENL_NAME "SMBD_GENL" #define KSMBD_GENL_VERSION 0x01 #define KSMBD_REQ_MAX_ACCOUNT_NAME_SZ 48 #define KSMBD_REQ_MAX_HASH_SZ 18 #define KSMBD_REQ_MAX_SHARE_NAME 64 /* * IPC heartbeat frame to check whether user IPC daemon is alive. */ struct ksmbd_heartbeat { __u32 handle; }; /* * Global config flags. */ #define KSMBD_GLOBAL_FLAG_INVALID (0) #define KSMBD_GLOBAL_FLAG_SMB2_LEASES BIT(0) #define KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION BIT(1) #define KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL BIT(2) #define KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF BIT(3) /* * IPC request for ksmbd server startup */ struct ksmbd_startup_request { __u32 flags; /* Flags for global config */ __s32 signing; /* Signing enabled */ __s8 min_prot[16]; /* The minimum SMB protocol version */ __s8 max_prot[16]; /* The maximum SMB protocol version */ __s8 netbios_name[16]; __s8 work_group[64]; /* Workgroup */ __s8 server_string[64]; /* Server string */ __u16 tcp_port; /* tcp port */ __u16 ipc_timeout; /* * specifies the number of seconds * server will wait for the userspace to * reply to heartbeat frames. */ __u32 deadtime; /* Number of minutes of inactivity */ __u32 file_max; /* Limits the maximum number of open files */ __u32 smb2_max_write; /* MAX write size */ __u32 smb2_max_read; /* MAX read size */ __u32 smb2_max_trans; /* MAX trans size */ __u32 share_fake_fscaps; /* * Support some special application that * makes QFSINFO calls to check whether * we set the SPARSE_FILES bit (0x40). */ __u32 sub_auth[3]; /* Subauth value for Security ID */ __u32 smb2_max_credits; /* MAX credits */ __u32 smbd_max_io_size; /* smbd read write size */ __u32 max_connections; /* Number of maximum simultaneous connections */ __u32 reserved[126]; /* Reserved room */ __u32 ifc_list_sz; /* interfaces list size */ __s8 ____payload[]; }; #define KSMBD_STARTUP_CONFIG_INTERFACES(s) ((s)->____payload) /* * IPC request to shutdown ksmbd server. */ struct ksmbd_shutdown_request { __s32 reserved[16]; }; /* * IPC user login request. */ struct ksmbd_login_request { __u32 handle; __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */ __u32 reserved[16]; /* Reserved room */ }; /* * IPC user login response. */ struct ksmbd_login_response { __u32 handle; __u32 gid; /* group id */ __u32 uid; /* user id */ __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */ __u16 status; __u16 hash_sz; /* hash size */ __s8 hash[KSMBD_REQ_MAX_HASH_SZ]; /* password hash */ __u32 reserved[16]; /* Reserved room */ }; /* * IPC request to fetch net share config. */ struct ksmbd_share_config_request { __u32 handle; __s8 share_name[KSMBD_REQ_MAX_SHARE_NAME]; /* share name */ __u32 reserved[16]; /* Reserved room */ }; /* * IPC response to the net share config request. */ struct ksmbd_share_config_response { __u32 handle; __u32 flags; __u16 create_mask; __u16 directory_mask; __u16 force_create_mode; __u16 force_directory_mode; __u16 force_uid; __u16 force_gid; __s8 share_name[KSMBD_REQ_MAX_SHARE_NAME]; __u32 reserved[112]; /* Reserved room */ __u32 veto_list_sz; __s8 ____payload[]; }; #define KSMBD_SHARE_CONFIG_VETO_LIST(s) ((s)->____payload) static inline char * ksmbd_share_config_path(struct ksmbd_share_config_response *sc) { char *p = sc->____payload; if (sc->veto_list_sz) p += sc->veto_list_sz + 1; return p; } /* * IPC request for tree connection. This request include session and tree * connect info from client. */ struct ksmbd_tree_connect_request { __u32 handle; __u16 account_flags; __u16 flags; __u64 session_id; __u64 connect_id; __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; __s8 share[KSMBD_REQ_MAX_SHARE_NAME]; __s8 peer_addr[64]; __u32 reserved[16]; /* Reserved room */ }; /* * IPC Response structure for tree connection. */ struct ksmbd_tree_connect_response { __u32 handle; __u16 status; __u16 connection_flags; __u32 reserved[16]; /* Reserved room */ }; /* * IPC Request struture to disconnect tree connection. */ struct ksmbd_tree_disconnect_request { __u64 session_id; /* session id */ __u64 connect_id; /* tree connection id */ __u32 reserved[16]; /* Reserved room */ }; /* * IPC Response structure to logout user account. */ struct ksmbd_logout_request { __s8 account[KSMBD_REQ_MAX_ACCOUNT_NAME_SZ]; /* user account name */ __u32 account_flags; __u32 reserved[16]; /* Reserved room */ }; /* * RPC command structure to send rpc request like srvsvc or wkssvc to * IPC user daemon. */ struct ksmbd_rpc_command { __u32 handle; __u32 flags; __u32 payload_sz; __u8 payload[]; }; /* * IPC Request Kerberos authentication */ struct ksmbd_spnego_authen_request { __u32 handle; __u16 spnego_blob_len; /* the length of spnego_blob */ __u8 spnego_blob[]; /* * the GSS token from SecurityBuffer of * SMB2 SESSION SETUP request */ }; /* * Response data which includes the GSS token and the session key generated by * user daemon. */ struct ksmbd_spnego_authen_response { __u32 handle; struct ksmbd_login_response login_response; /* * the login response with * a user identified by the * GSS token from a client */ __u16 session_key_len; /* the length of the session key */ __u16 spnego_blob_len; /* * the length of the GSS token which will be * stored in SecurityBuffer of SMB2 SESSION * SETUP response */ __u8 payload[]; /* session key + AP_REP */ }; /* * This also used as NETLINK attribute type value. * * NOTE: * Response message type value should be equal to * request message type value + 1. */ enum ksmbd_event { KSMBD_EVENT_UNSPEC = 0, KSMBD_EVENT_HEARTBEAT_REQUEST, KSMBD_EVENT_STARTING_UP, KSMBD_EVENT_SHUTTING_DOWN, KSMBD_EVENT_LOGIN_REQUEST, KSMBD_EVENT_LOGIN_RESPONSE = 5, KSMBD_EVENT_SHARE_CONFIG_REQUEST, KSMBD_EVENT_SHARE_CONFIG_RESPONSE, KSMBD_EVENT_TREE_CONNECT_REQUEST, KSMBD_EVENT_TREE_CONNECT_RESPONSE, KSMBD_EVENT_TREE_DISCONNECT_REQUEST = 10, KSMBD_EVENT_LOGOUT_REQUEST, KSMBD_EVENT_RPC_REQUEST, KSMBD_EVENT_RPC_RESPONSE, KSMBD_EVENT_SPNEGO_AUTHEN_REQUEST, KSMBD_EVENT_SPNEGO_AUTHEN_RESPONSE = 15, KSMBD_EVENT_MAX }; /* * Enumeration for IPC tree connect status. */ enum KSMBD_TREE_CONN_STATUS { KSMBD_TREE_CONN_STATUS_OK = 0, KSMBD_TREE_CONN_STATUS_NOMEM, KSMBD_TREE_CONN_STATUS_NO_SHARE, KSMBD_TREE_CONN_STATUS_NO_USER, KSMBD_TREE_CONN_STATUS_INVALID_USER, KSMBD_TREE_CONN_STATUS_HOST_DENIED = 5, KSMBD_TREE_CONN_STATUS_CONN_EXIST, KSMBD_TREE_CONN_STATUS_TOO_MANY_CONNS, KSMBD_TREE_CONN_STATUS_TOO_MANY_SESSIONS, KSMBD_TREE_CONN_STATUS_ERROR, }; /* * User config flags. */ #define KSMBD_USER_FLAG_INVALID (0) #define KSMBD_USER_FLAG_OK BIT(0) #define KSMBD_USER_FLAG_BAD_PASSWORD BIT(1) #define KSMBD_USER_FLAG_BAD_UID BIT(2) #define KSMBD_USER_FLAG_BAD_USER BIT(3) #define KSMBD_USER_FLAG_GUEST_ACCOUNT BIT(4) #define KSMBD_USER_FLAG_DELAY_SESSION BIT(5) /* * Share config flags. */ #define KSMBD_SHARE_FLAG_INVALID (0) #define KSMBD_SHARE_FLAG_AVAILABLE BIT(0) #define KSMBD_SHARE_FLAG_BROWSEABLE BIT(1) #define KSMBD_SHARE_FLAG_WRITEABLE BIT(2) #define KSMBD_SHARE_FLAG_READONLY BIT(3) #define KSMBD_SHARE_FLAG_GUEST_OK BIT(4) #define KSMBD_SHARE_FLAG_GUEST_ONLY BIT(5) #define KSMBD_SHARE_FLAG_STORE_DOS_ATTRS BIT(6) #define KSMBD_SHARE_FLAG_OPLOCKS BIT(7) #define KSMBD_SHARE_FLAG_PIPE BIT(8) #define KSMBD_SHARE_FLAG_HIDE_DOT_FILES BIT(9) #define KSMBD_SHARE_FLAG_INHERIT_OWNER BIT(10) #define KSMBD_SHARE_FLAG_STREAMS BIT(11) #define KSMBD_SHARE_FLAG_FOLLOW_SYMLINKS BIT(12) #define KSMBD_SHARE_FLAG_ACL_XATTR BIT(13) #define KSMBD_SHARE_FLAG_UPDATE BIT(14) #define KSMBD_SHARE_FLAG_CROSSMNT BIT(15) /* * Tree connect request flags. */ #define KSMBD_TREE_CONN_FLAG_REQUEST_SMB1 (0) #define KSMBD_TREE_CONN_FLAG_REQUEST_IPV6 BIT(0) #define KSMBD_TREE_CONN_FLAG_REQUEST_SMB2 BIT(1) /* * Tree connect flags. */ #define KSMBD_TREE_CONN_FLAG_GUEST_ACCOUNT BIT(0) #define KSMBD_TREE_CONN_FLAG_READ_ONLY BIT(1) #define KSMBD_TREE_CONN_FLAG_WRITABLE BIT(2) #define KSMBD_TREE_CONN_FLAG_ADMIN_ACCOUNT BIT(3) #define KSMBD_TREE_CONN_FLAG_UPDATE BIT(4) /* * RPC over IPC. */ #define KSMBD_RPC_METHOD_RETURN BIT(0) #define KSMBD_RPC_SRVSVC_METHOD_INVOKE BIT(1) #define KSMBD_RPC_SRVSVC_METHOD_RETURN (KSMBD_RPC_SRVSVC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN) #define KSMBD_RPC_WKSSVC_METHOD_INVOKE BIT(2) #define KSMBD_RPC_WKSSVC_METHOD_RETURN (KSMBD_RPC_WKSSVC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN) #define KSMBD_RPC_IOCTL_METHOD (BIT(3) | KSMBD_RPC_METHOD_RETURN) #define KSMBD_RPC_OPEN_METHOD BIT(4) #define KSMBD_RPC_WRITE_METHOD BIT(5) #define KSMBD_RPC_READ_METHOD (BIT(6) | KSMBD_RPC_METHOD_RETURN) #define KSMBD_RPC_CLOSE_METHOD BIT(7) #define KSMBD_RPC_RAP_METHOD (BIT(8) | KSMBD_RPC_METHOD_RETURN) #define KSMBD_RPC_RESTRICTED_CONTEXT BIT(9) #define KSMBD_RPC_SAMR_METHOD_INVOKE BIT(10) #define KSMBD_RPC_SAMR_METHOD_RETURN (KSMBD_RPC_SAMR_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN) #define KSMBD_RPC_LSARPC_METHOD_INVOKE BIT(11) #define KSMBD_RPC_LSARPC_METHOD_RETURN (KSMBD_RPC_LSARPC_METHOD_INVOKE | KSMBD_RPC_METHOD_RETURN) /* * RPC status definitions. */ #define KSMBD_RPC_OK 0 #define KSMBD_RPC_EBAD_FUNC 0x00000001 #define KSMBD_RPC_EACCESS_DENIED 0x00000005 #define KSMBD_RPC_EBAD_FID 0x00000006 #define KSMBD_RPC_ENOMEM 0x00000008 #define KSMBD_RPC_EBAD_DATA 0x0000000D #define KSMBD_RPC_ENOTIMPLEMENTED 0x00000040 #define KSMBD_RPC_EINVALID_PARAMETER 0x00000057 #define KSMBD_RPC_EMORE_DATA 0x000000EA #define KSMBD_RPC_EINVALID_LEVEL 0x0000007C #define KSMBD_RPC_SOME_NOT_MAPPED 0x00000107 #define KSMBD_CONFIG_OPT_DISABLED 0 #define KSMBD_CONFIG_OPT_ENABLED 1 #define KSMBD_CONFIG_OPT_AUTO 2 #define KSMBD_CONFIG_OPT_MANDATORY 3 #endif /* _LINUX_KSMBD_SERVER_H */ |