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 void smb2_echo_request(struct work_struct *work); 43 extern __le32 smb2_get_lease_state(struct cifsInodeInfo *cinode); 44 extern bool smb2_is_valid_oplock_break(char *buffer, 45 struct TCP_Server_Info *srv); 46 extern int smb3_handle_read_data(struct TCP_Server_Info *server, 47 struct mid_q_entry *mid); 48 extern int smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon, 49 struct cifs_sb_info *cifs_sb, const char *path, 50 __u32 *reparse_tag); 51 struct inode *smb2_create_reparse_inode(struct cifs_open_info_data *data, 52 struct super_block *sb, 53 const unsigned int xid, 54 struct cifs_tcon *tcon, 55 const char *full_path, 56 bool directory, 57 struct kvec *reparse_iov, 58 struct kvec *xattr_iov); 59 int smb2_query_reparse_point(const unsigned int xid, 60 struct cifs_tcon *tcon, 61 struct cifs_sb_info *cifs_sb, 62 const char *full_path, 63 u32 *tag, struct kvec *rsp, 64 int *rsp_buftype); 65 int smb2_query_path_info(const unsigned int xid, 66 struct cifs_tcon *tcon, 67 struct cifs_sb_info *cifs_sb, 68 const char *full_path, 69 struct cifs_open_info_data *data); 70 extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon, 71 const char *full_path, __u64 size, 72 struct cifs_sb_info *cifs_sb, bool set_alloc, 73 struct dentry *dentry); 74 extern int smb2_set_file_info(struct inode *inode, const char *full_path, 75 FILE_BASIC_INFO *buf, const unsigned int xid); 76 extern int smb311_posix_mkdir(const unsigned int xid, struct inode *inode, 77 umode_t mode, struct cifs_tcon *tcon, 78 const char *full_path, 79 struct cifs_sb_info *cifs_sb); 80 extern int smb2_mkdir(const unsigned int xid, struct inode *inode, 81 umode_t mode, struct cifs_tcon *tcon, 82 const char *name, struct cifs_sb_info *cifs_sb); 83 extern void smb2_mkdir_setinfo(struct inode *inode, const char *full_path, 84 struct cifs_sb_info *cifs_sb, 85 struct cifs_tcon *tcon, const unsigned int xid); 86 extern int smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, 87 const char *name, struct cifs_sb_info *cifs_sb); 88 extern int smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, 89 const char *name, struct cifs_sb_info *cifs_sb, 90 struct dentry *dentry); 91 int smb2_rename_path(const unsigned int xid, 92 struct cifs_tcon *tcon, 93 struct dentry *source_dentry, 94 const char *from_name, const char *to_name, 95 struct cifs_sb_info *cifs_sb); 96 int smb2_create_hardlink(const unsigned int xid, 97 struct cifs_tcon *tcon, 98 struct dentry *source_dentry, 99 const char *from_name, const char *to_name, 100 struct cifs_sb_info *cifs_sb); 101 extern int smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 102 struct cifs_sb_info *cifs_sb, const unsigned char *path, 103 char *pbuf, unsigned int *pbytes_written); 104 extern int smb3_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon, 105 struct cifs_sb_info *cifs_sb, 106 const unsigned char *path, char *pbuf, 107 unsigned int *pbytes_read); 108 int smb2_fix_symlink_target_type(char **target, bool directory, struct cifs_sb_info *cifs_sb); 109 int smb2_parse_native_symlink(char **target, const char *buf, unsigned int len, 110 bool relative, 111 const char *full_path, 112 struct cifs_sb_info *cifs_sb); 113 int smb2_parse_symlink_response(struct cifs_sb_info *cifs_sb, 114 const struct kvec *iov, 115 const char *full_path, 116 char **path); 117 int smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms, __u32 *oplock, 118 void *buf); 119 extern int smb2_unlock_range(struct cifsFileInfo *cfile, 120 struct file_lock *flock, const unsigned int xid); 121 extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile); 122 extern void smb2_reconnect_server(struct work_struct *work); 123 extern int smb3_crypto_aead_allocate(struct TCP_Server_Info *server); 124 extern unsigned long smb_rqst_len(struct TCP_Server_Info *server, 125 struct smb_rqst *rqst); 126 extern void smb2_set_next_command(struct cifs_tcon *tcon, 127 struct smb_rqst *rqst); 128 extern void smb2_set_related(struct smb_rqst *rqst); 129 extern void smb2_set_replay(struct TCP_Server_Info *server, 130 struct smb_rqst *rqst); 131 extern bool smb2_should_replay(struct cifs_tcon *tcon, 132 int *pretries, 133 int *pcur_sleep); 134 135 /* 136 * SMB2 Worker functions - most of protocol specific implementation details 137 * are contained within these calls. 138 */ 139 extern int SMB2_negotiate(const unsigned int xid, 140 struct cifs_ses *ses, 141 struct TCP_Server_Info *server); 142 extern int SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses, 143 struct TCP_Server_Info *server, 144 const struct nls_table *nls_cp); 145 extern int SMB2_logoff(const unsigned int xid, struct cifs_ses *ses); 146 extern int SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, 147 const char *tree, struct cifs_tcon *tcon, 148 const struct nls_table *); 149 extern int SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon); 150 extern int SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, 151 __le16 *path, __u8 *oplock, 152 struct smb2_file_all_info *buf, 153 struct create_posix_rsp *posix, 154 struct kvec *err_iov, int *resp_buftype); 155 extern int SMB2_open_init(struct cifs_tcon *tcon, 156 struct TCP_Server_Info *server, 157 struct smb_rqst *rqst, 158 __u8 *oplock, struct cifs_open_parms *oparms, 159 __le16 *path); 160 extern void SMB2_open_free(struct smb_rqst *rqst); 161 extern int SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, 162 u64 persistent_fid, u64 volatile_fid, u32 opcode, 163 char *in_data, u32 indatalen, u32 maxoutlen, 164 char **out_data, u32 *plen /* returned data len */); 165 extern int SMB2_ioctl_init(struct cifs_tcon *tcon, 166 struct TCP_Server_Info *server, 167 struct smb_rqst *rqst, 168 u64 persistent_fid, u64 volatile_fid, u32 opcode, 169 char *in_data, u32 indatalen, 170 __u32 max_response_size); 171 extern void SMB2_ioctl_free(struct smb_rqst *rqst); 172 extern int SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon, 173 u64 persistent_fid, u64 volatile_fid, bool watch_tree, 174 u32 completion_filter, u32 max_out_data_len, 175 char **out_data, u32 *plen /* returned data len */); 176 177 extern int __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, 178 u64 persistent_fid, u64 volatile_fid, 179 struct smb2_file_network_open_info *pbuf); 180 extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, 181 u64 persistent_file_id, u64 volatile_file_id); 182 extern int SMB2_close_init(struct cifs_tcon *tcon, 183 struct TCP_Server_Info *server, 184 struct smb_rqst *rqst, 185 u64 persistent_fid, u64 volatile_fid, 186 bool query_attrs); 187 extern void SMB2_close_free(struct smb_rqst *rqst); 188 extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, 189 u64 persistent_file_id, u64 volatile_file_id); 190 extern int SMB2_flush_init(const unsigned int xid, struct smb_rqst *rqst, 191 struct cifs_tcon *tcon, 192 struct TCP_Server_Info *server, 193 u64 persistent_file_id, u64 volatile_file_id); 194 extern void SMB2_flush_free(struct smb_rqst *rqst); 195 extern int SMB311_posix_query_info(const unsigned int xid, struct cifs_tcon *tcon, 196 u64 persistent_fid, u64 volatile_fid, struct smb311_posix_qinfo *data, u32 *plen); 197 extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, 198 u64 persistent_file_id, u64 volatile_file_id, 199 struct smb2_file_all_info *data); 200 extern int SMB2_query_info_init(struct cifs_tcon *tcon, 201 struct TCP_Server_Info *server, 202 struct smb_rqst *rqst, 203 u64 persistent_fid, u64 volatile_fid, 204 u8 info_class, u8 info_type, 205 u32 additional_info, size_t output_len, 206 size_t input_len, void *input); 207 extern void SMB2_query_info_free(struct smb_rqst *rqst); 208 extern int SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon, 209 u64 persistent_file_id, u64 volatile_file_id, 210 void **data, unsigned int *plen, u32 info); 211 extern int SMB2_get_srv_num(const unsigned int xid, struct cifs_tcon *tcon, 212 u64 persistent_fid, u64 volatile_fid, 213 __le64 *uniqueid); 214 extern int smb2_async_readv(struct cifs_io_subrequest *rdata); 215 extern int SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms, 216 unsigned int *nbytes, char **buf, int *buf_type); 217 extern void smb2_async_writev(struct cifs_io_subrequest *wdata); 218 extern int SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms, 219 unsigned int *nbytes, struct kvec *iov, int n_vec); 220 extern int SMB2_echo(struct TCP_Server_Info *server); 221 extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon, 222 u64 persistent_fid, u64 volatile_fid, int index, 223 struct cifs_search_info *srch_inf); 224 extern int SMB2_query_directory_init(unsigned int xid, struct cifs_tcon *tcon, 225 struct TCP_Server_Info *server, 226 struct smb_rqst *rqst, 227 u64 persistent_fid, u64 volatile_fid, 228 int index, int info_level); 229 extern void SMB2_query_directory_free(struct smb_rqst *rqst); 230 extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon, 231 u64 persistent_fid, u64 volatile_fid, u32 pid, 232 loff_t new_eof); 233 extern int SMB2_set_info_init(struct cifs_tcon *tcon, 234 struct TCP_Server_Info *server, 235 struct smb_rqst *rqst, 236 u64 persistent_fid, u64 volatile_fid, u32 pid, 237 u8 info_class, u8 info_type, u32 additional_info, 238 void **data, unsigned int *size); 239 extern void SMB2_set_info_free(struct smb_rqst *rqst); 240 extern int SMB2_set_acl(const unsigned int xid, struct cifs_tcon *tcon, 241 u64 persistent_fid, u64 volatile_fid, 242 struct smb_ntsd *pnntsd, int pacllen, int aclflag); 243 extern int SMB2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, 244 u64 persistent_fid, u64 volatile_fid, 245 struct smb2_file_full_ea_info *buf, int len); 246 extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, 247 u64 persistent_fid, u64 volatile_fid); 248 extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon, 249 const u64 persistent_fid, const u64 volatile_fid, 250 const __u8 oplock_level); 251 extern int smb2_handle_cancelled_close(struct cifs_tcon *tcon, 252 __u64 persistent_fid, 253 __u64 volatile_fid); 254 extern int smb2_handle_cancelled_mid(struct mid_q_entry *mid, struct TCP_Server_Info *server); 255 void smb2_cancelled_close_fid(struct work_struct *work); 256 extern int SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon, 257 u64 persistent_file_id, u64 volatile_file_id, 258 struct kstatfs *FSData); 259 extern int SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon, 260 u64 persistent_file_id, u64 volatile_file_id, int lvl); 261 extern int SMB2_lock(const unsigned int xid, struct cifs_tcon *tcon, 262 const __u64 persist_fid, const __u64 volatile_fid, 263 const __u32 pid, const __u64 length, const __u64 offset, 264 const __u32 lockFlags, const bool wait); 265 extern int smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon, 266 const __u64 persist_fid, const __u64 volatile_fid, 267 const __u32 pid, const __u32 num_lock, 268 struct smb2_lock_element *buf); 269 extern int SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, 270 __u8 *lease_key, const __le32 lease_state); 271 extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *); 272 273 extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *, 274 enum securityEnum); 275 int smb2_parse_contexts(struct TCP_Server_Info *server, 276 struct kvec *rsp_iov, 277 __u16 *epoch, 278 char *lease_key, __u8 *oplock, 279 struct smb2_file_all_info *buf, 280 struct create_posix_rsp *posix); 281 282 extern int smb3_encryption_required(const struct cifs_tcon *tcon); 283 extern int smb2_validate_iov(unsigned int offset, unsigned int buffer_length, 284 struct kvec *iov, unsigned int min_buf_size); 285 extern int smb2_validate_and_copy_iov(unsigned int offset, 286 unsigned int buffer_length, 287 struct kvec *iov, 288 unsigned int minbufsize, char *data); 289 extern void smb2_copy_fs_info_to_kstatfs( 290 struct smb2_fs_full_size_info *pfs_inf, 291 struct kstatfs *kst); 292 extern int smb3_crypto_shash_allocate(struct TCP_Server_Info *server); 293 extern void smb311_update_preauth_hash(struct cifs_ses *ses, 294 struct TCP_Server_Info *server, 295 struct kvec *iov, int nvec); 296 extern int smb2_query_info_compound(const unsigned int xid, 297 struct cifs_tcon *tcon, 298 const char *path, u32 desired_access, 299 u32 class, u32 type, u32 output_len, 300 struct kvec *rsp, int *buftype, 301 struct cifs_sb_info *cifs_sb); 302 /* query path info from the server using SMB311 POSIX extensions*/ 303 int smb311_posix_query_path_info(const unsigned int xid, 304 struct cifs_tcon *tcon, 305 struct cifs_sb_info *cifs_sb, 306 const char *full_path, 307 struct cifs_open_info_data *data); 308 int posix_info_parse(const void *beg, const void *end, 309 struct smb2_posix_info_parsed *out); 310 int posix_info_sid_size(const void *beg, const void *end); 311 int smb2_make_nfs_node(unsigned int xid, struct inode *inode, 312 struct dentry *dentry, struct cifs_tcon *tcon, 313 const char *full_path, umode_t mode, dev_t dev); 314 int smb2_rename_pending_delete(const char *full_path, 315 struct dentry *dentry, 316 const unsigned int xid); 317 318 #endif /* _SMB2PROTO_H */ 319