1 /* SPDX-License-Identifier: LGPL-2.1 */ 2 /* 3 * 4 * Copyright (c) International Business Machines Corp., 2002, 2011 5 * Etersoft, 2012 6 * Author(s): Steve French (sfrench@us.ibm.com) 7 * Pavel Shilovsky (pshilovsky@samba.org) 2012 8 * 9 */ 10 #ifndef _SMB2PROTO_H 11 #define _SMB2PROTO_H 12 #include <linux/nls.h> 13 #include <linux/key-type.h> 14 15 struct statfs; 16 struct smb_rqst; 17 18 /* 19 ***************************************************************** 20 * All Prototypes 21 ***************************************************************** 22 */ 23 extern int map_smb2_to_linux_error(char *buf, bool log_err); 24 extern int smb2_check_message(char *buf, unsigned int length, 25 struct TCP_Server_Info *server); 26 extern unsigned int smb2_calc_size(void *buf); 27 extern char *smb2_get_data_area_len(int *off, int *len, 28 struct smb2_hdr *shdr); 29 extern __le16 *cifs_convert_path_to_utf16(const char *from, 30 struct cifs_sb_info *cifs_sb); 31 32 extern int smb2_verify_signature(struct smb_rqst *, struct TCP_Server_Info *); 33 extern int smb2_check_receive(struct mid_q_entry *mid, 34 struct TCP_Server_Info *server, bool log_error); 35 extern struct mid_q_entry *smb2_setup_request(struct cifs_ses *ses, 36 struct TCP_Server_Info *, 37 struct smb_rqst *rqst); 38 extern struct mid_q_entry *smb2_setup_async_request( 39 struct TCP_Server_Info *server, struct smb_rqst *rqst); 40 extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server, 41 __u64 ses_id, __u32 tid); 42 extern int smb2_calc_signature(struct smb_rqst *rqst, 43 struct TCP_Server_Info *server, 44 bool allocate_crypto); 45 extern int smb3_calc_signature(struct smb_rqst *rqst, 46 struct TCP_Server_Info *server, 47 bool allocate_crypto); 48 extern void smb2_echo_request(struct work_struct *work); 49 extern __le32 smb2_get_lease_state(struct cifsInodeInfo *cinode); 50 extern bool smb2_is_valid_oplock_break(char *buffer, 51 struct TCP_Server_Info *srv); 52 extern int smb3_handle_read_data(struct TCP_Server_Info *server, 53 struct mid_q_entry *mid); 54 extern int smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon, 55 struct cifs_sb_info *cifs_sb, const char *path, 56 __u32 *reparse_tag); 57 struct inode *smb2_get_reparse_inode(struct cifs_open_info_data *data, 58 struct super_block *sb, 59 const unsigned int xid, 60 struct cifs_tcon *tcon, 61 const char *full_path, 62 bool directory, 63 struct kvec *reparse_iov, 64 struct kvec *xattr_iov); 65 int smb2_query_reparse_point(const unsigned int xid, 66 struct cifs_tcon *tcon, 67 struct cifs_sb_info *cifs_sb, 68 const char *full_path, 69 u32 *tag, struct kvec *rsp, 70 int *rsp_buftype); 71 int smb2_query_path_info(const unsigned int xid, 72 struct cifs_tcon *tcon, 73 struct cifs_sb_info *cifs_sb, 74 const char *full_path, 75 struct cifs_open_info_data *data); 76 extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon, 77 const char *full_path, __u64 size, 78 struct cifs_sb_info *cifs_sb, bool set_alloc, 79 struct dentry *dentry); 80 extern int smb2_set_file_info(struct inode *inode, const char *full_path, 81 FILE_BASIC_INFO *buf, const unsigned int xid); 82 extern int smb311_posix_mkdir(const unsigned int xid, struct inode *inode, 83 umode_t mode, struct cifs_tcon *tcon, 84 const char *full_path, 85 struct cifs_sb_info *cifs_sb); 86 extern int smb2_mkdir(const unsigned int xid, struct inode *inode, 87 umode_t mode, struct cifs_tcon *tcon, 88 const char *name, struct cifs_sb_info *cifs_sb); 89 extern void smb2_mkdir_setinfo(struct inode *inode, const char *full_path, 90 struct cifs_sb_info *cifs_sb, 91 struct cifs_tcon *tcon, const unsigned int xid); 92 extern int smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, 93 const char *name, struct cifs_sb_info *cifs_sb); 94 extern int smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, 95 const char *name, struct cifs_sb_info *cifs_sb, 96 struct dentry *dentry); 97 int smb2_rename_path(const unsigned int xid, 98 struct cifs_tcon *tcon, 99 struct dentry *source_dentry, 100 const char *from_name, const char *to_name, 101 struct cifs_sb_info *cifs_sb); 102 int smb2_create_hardlink(const unsigned int xid, 103 struct cifs_tcon *tcon, 104 struct dentry *source_dentry, 105 const char *from_name, const char *to_name, 106 struct cifs_sb_info *cifs_sb); 107 extern int smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 108 struct cifs_sb_info *cifs_sb, const unsigned char *path, 109 char *pbuf, unsigned int *pbytes_written); 110 extern int smb3_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 111 struct cifs_sb_info *cifs_sb, 112 const unsigned char *path, char *pbuf, 113 unsigned int *pbytes_read); 114 int smb2_parse_native_symlink(char **target, const char *buf, unsigned int len, 115 bool unicode, bool relative, 116 const char *full_path, 117 struct cifs_sb_info *cifs_sb); 118 int smb2_parse_symlink_response(struct cifs_sb_info *cifs_sb, 119 const struct kvec *iov, 120 const char *full_path, 121 char **path); 122 int smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms, __u32 *oplock, 123 void *buf); 124 extern int smb2_unlock_range(struct cifsFileInfo *cfile, 125 struct file_lock *flock, const unsigned int xid); 126 extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile); 127 extern void smb2_reconnect_server(struct work_struct *work); 128 extern int smb3_crypto_aead_allocate(struct TCP_Server_Info *server); 129 extern unsigned long smb_rqst_len(struct TCP_Server_Info *server, 130 struct smb_rqst *rqst); 131 extern void smb2_set_next_command(struct cifs_tcon *tcon, 132 struct smb_rqst *rqst); 133 extern void smb2_set_related(struct smb_rqst *rqst); 134 extern void smb2_set_replay(struct TCP_Server_Info *server, 135 struct smb_rqst *rqst); 136 extern bool smb2_should_replay(struct cifs_tcon *tcon, 137 int *pretries, 138 int *pcur_sleep); 139 140 /* 141 * SMB2 Worker functions - most of protocol specific implementation details 142 * are contained within these calls. 143 */ 144 extern int SMB2_negotiate(const unsigned int xid, 145 struct cifs_ses *ses, 146 struct TCP_Server_Info *server); 147 extern int SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses, 148 struct TCP_Server_Info *server, 149 const struct nls_table *nls_cp); 150 extern int SMB2_logoff(const unsigned int xid, struct cifs_ses *ses); 151 extern int SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, 152 const char *tree, struct cifs_tcon *tcon, 153 const struct nls_table *); 154 extern int SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon); 155 extern int SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, 156 __le16 *path, __u8 *oplock, 157 struct smb2_file_all_info *buf, 158 struct create_posix_rsp *posix, 159 struct kvec *err_iov, int *resp_buftype); 160 extern int SMB2_open_init(struct cifs_tcon *tcon, 161 struct TCP_Server_Info *server, 162 struct smb_rqst *rqst, 163 __u8 *oplock, struct cifs_open_parms *oparms, 164 __le16 *path); 165 extern void SMB2_open_free(struct smb_rqst *rqst); 166 extern int SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, 167 u64 persistent_fid, u64 volatile_fid, u32 opcode, 168 char *in_data, u32 indatalen, u32 maxoutlen, 169 char **out_data, u32 *plen /* returned data len */); 170 extern int SMB2_ioctl_init(struct cifs_tcon *tcon, 171 struct TCP_Server_Info *server, 172 struct smb_rqst *rqst, 173 u64 persistent_fid, u64 volatile_fid, u32 opcode, 174 char *in_data, u32 indatalen, 175 __u32 max_response_size); 176 extern void SMB2_ioctl_free(struct smb_rqst *rqst); 177 extern int SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon, 178 u64 persistent_fid, u64 volatile_fid, bool watch_tree, 179 u32 completion_filter, u32 max_out_data_len, 180 char **out_data, u32 *plen /* returned data len */); 181 182 extern int __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, 183 u64 persistent_fid, u64 volatile_fid, 184 struct smb2_file_network_open_info *pbuf); 185 extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, 186 u64 persistent_file_id, u64 volatile_file_id); 187 extern int SMB2_close_init(struct cifs_tcon *tcon, 188 struct TCP_Server_Info *server, 189 struct smb_rqst *rqst, 190 u64 persistent_fid, u64 volatile_fid, 191 bool query_attrs); 192 extern void SMB2_close_free(struct smb_rqst *rqst); 193 extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, 194 u64 persistent_file_id, u64 volatile_file_id); 195 extern int SMB2_flush_init(const unsigned int xid, struct smb_rqst *rqst, 196 struct cifs_tcon *tcon, 197 struct TCP_Server_Info *server, 198 u64 persistent_file_id, u64 volatile_file_id); 199 extern void SMB2_flush_free(struct smb_rqst *rqst); 200 extern int SMB311_posix_query_info(const unsigned int xid, struct cifs_tcon *tcon, 201 u64 persistent_fid, u64 volatile_fid, struct smb311_posix_qinfo *data, u32 *plen); 202 extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, 203 u64 persistent_file_id, u64 volatile_file_id, 204 struct smb2_file_all_info *data); 205 extern int SMB2_query_info_init(struct cifs_tcon *tcon, 206 struct TCP_Server_Info *server, 207 struct smb_rqst *rqst, 208 u64 persistent_fid, u64 volatile_fid, 209 u8 info_class, u8 info_type, 210 u32 additional_info, size_t output_len, 211 size_t input_len, void *input); 212 extern void SMB2_query_info_free(struct smb_rqst *rqst); 213 extern int SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon, 214 u64 persistent_file_id, u64 volatile_file_id, 215 void **data, unsigned int *plen, u32 info); 216 extern int SMB2_get_srv_num(const unsigned int xid, struct cifs_tcon *tcon, 217 u64 persistent_fid, u64 volatile_fid, 218 __le64 *uniqueid); 219 extern int smb2_async_readv(struct cifs_readdata *rdata); 220 extern int SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms, 221 unsigned int *nbytes, char **buf, int *buf_type); 222 extern int smb2_async_writev(struct cifs_writedata *wdata, 223 void (*release)(struct kref *kref)); 224 extern int SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms, 225 unsigned int *nbytes, struct kvec *iov, int n_vec); 226 extern int SMB2_echo(struct TCP_Server_Info *server); 227 extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon, 228 u64 persistent_fid, u64 volatile_fid, int index, 229 struct cifs_search_info *srch_inf); 230 extern int SMB2_query_directory_init(unsigned int xid, struct cifs_tcon *tcon, 231 struct TCP_Server_Info *server, 232 struct smb_rqst *rqst, 233 u64 persistent_fid, u64 volatile_fid, 234 int index, int info_level); 235 extern void SMB2_query_directory_free(struct smb_rqst *rqst); 236 extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon, 237 u64 persistent_fid, u64 volatile_fid, u32 pid, 238 loff_t new_eof); 239 extern int SMB2_set_info_init(struct cifs_tcon *tcon, 240 struct TCP_Server_Info *server, 241 struct smb_rqst *rqst, 242 u64 persistent_fid, u64 volatile_fid, u32 pid, 243 u8 info_class, u8 info_type, u32 additional_info, 244 void **data, unsigned int *size); 245 extern void SMB2_set_info_free(struct smb_rqst *rqst); 246 extern int SMB2_set_acl(const unsigned int xid, struct cifs_tcon *tcon, 247 u64 persistent_fid, u64 volatile_fid, 248 struct smb_ntsd *pnntsd, int pacllen, int aclflag); 249 extern int SMB2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, 250 u64 persistent_fid, u64 volatile_fid, 251 struct smb2_file_full_ea_info *buf, int len); 252 extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, 253 u64 persistent_fid, u64 volatile_fid); 254 extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon, 255 const u64 persistent_fid, const u64 volatile_fid, 256 const __u8 oplock_level); 257 extern int smb2_handle_cancelled_close(struct cifs_tcon *tcon, 258 __u64 persistent_fid, 259 __u64 volatile_fid); 260 extern int smb2_handle_cancelled_mid(struct mid_q_entry *mid, struct TCP_Server_Info *server); 261 void smb2_cancelled_close_fid(struct work_struct *work); 262 extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon, 263 u64 persistent_file_id, u64 volatile_file_id, 264 struct kstatfs *FSData); 265 extern int SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon, 266 u64 persistent_file_id, u64 volatile_file_id, 267 struct kstatfs *FSData); 268 extern int SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon, 269 u64 persistent_file_id, u64 volatile_file_id, int lvl); 270 extern int SMB2_lock(const unsigned int xid, struct cifs_tcon *tcon, 271 const __u64 persist_fid, const __u64 volatile_fid, 272 const __u32 pid, const __u64 length, const __u64 offset, 273 const __u32 lockFlags, const bool wait); 274 extern int smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon, 275 const __u64 persist_fid, const __u64 volatile_fid, 276 const __u32 pid, const __u32 num_lock, 277 struct smb2_lock_element *buf); 278 extern int SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, 279 __u8 *lease_key, const __le32 lease_state); 280 extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *); 281 282 extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *, 283 enum securityEnum); 284 int smb2_parse_contexts(struct TCP_Server_Info *server, 285 struct kvec *rsp_iov, 286 __u16 *epoch, 287 char *lease_key, __u8 *oplock, 288 struct smb2_file_all_info *buf, 289 struct create_posix_rsp *posix); 290 291 extern int smb3_encryption_required(const struct cifs_tcon *tcon); 292 extern int smb2_validate_iov(unsigned int offset, unsigned int buffer_length, 293 struct kvec *iov, unsigned int min_buf_size); 294 extern int smb2_validate_and_copy_iov(unsigned int offset, 295 unsigned int buffer_length, 296 struct kvec *iov, 297 unsigned int minbufsize, char *data); 298 extern void smb2_copy_fs_info_to_kstatfs( 299 struct smb2_fs_full_size_info *pfs_inf, 300 struct kstatfs *kst); 301 extern int smb311_crypto_shash_allocate(struct TCP_Server_Info *server); 302 extern int smb311_update_preauth_hash(struct cifs_ses *ses, 303 struct TCP_Server_Info *server, 304 struct kvec *iov, int nvec); 305 extern int smb2_query_info_compound(const unsigned int xid, 306 struct cifs_tcon *tcon, 307 const char *path, u32 desired_access, 308 u32 class, u32 type, u32 output_len, 309 struct kvec *rsp, int *buftype, 310 struct cifs_sb_info *cifs_sb); 311 /* query path info from the server using SMB311 POSIX extensions*/ 312 int smb311_posix_query_path_info(const unsigned int xid, 313 struct cifs_tcon *tcon, 314 struct cifs_sb_info *cifs_sb, 315 const char *full_path, 316 struct cifs_open_info_data *data); 317 int posix_info_parse(const void *beg, const void *end, 318 struct smb2_posix_info_parsed *out); 319 int posix_info_sid_size(const void *beg, const void *end); 320 int smb2_create_reparse_symlink(const unsigned int xid, struct inode *inode, 321 struct dentry *dentry, struct cifs_tcon *tcon, 322 const char *full_path, const char *symname); 323 int smb2_make_nfs_node(unsigned int xid, struct inode *inode, 324 struct dentry *dentry, struct cifs_tcon *tcon, 325 const char *full_path, umode_t mode, dev_t dev); 326 327 #endif /* _SMB2PROTO_H */ 328