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, struct TCP_Server_Info *server); 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_ses *smb2_find_smb_ses(struct TCP_Server_Info *server, 41 __u64 ses_id); 42 extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server, 43 __u64 ses_id, __u32 tid); 44 extern int smb2_calc_signature(struct smb_rqst *rqst, 45 struct TCP_Server_Info *server, 46 bool allocate_crypto); 47 extern int smb3_calc_signature(struct smb_rqst *rqst, 48 struct TCP_Server_Info *server, 49 bool allocate_crypto); 50 extern void smb2_echo_request(struct work_struct *work); 51 extern __le32 smb2_get_lease_state(struct cifsInodeInfo *cinode); 52 extern bool smb2_is_valid_oplock_break(char *buffer, 53 struct TCP_Server_Info *srv); 54 extern int smb3_handle_read_data(struct TCP_Server_Info *server, 55 struct mid_q_entry *mid); 56 57 extern int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon, 58 const char *path, 59 struct cifs_sb_info *cifs_sb, 60 struct cached_fid **cfid); 61 extern int open_cached_dir_by_dentry(struct cifs_tcon *tcon, 62 struct dentry *dentry, 63 struct cached_fid **cfid); 64 extern void close_cached_dir(struct cached_fid *cfid); 65 extern void close_cached_dir_lease(struct cached_fid *cfid); 66 extern void close_cached_dir_lease_locked(struct cached_fid *cfid); 67 extern void move_smb2_info_to_cifs(FILE_ALL_INFO *dst, 68 struct smb2_file_all_info *src); 69 extern int smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon, 70 struct cifs_sb_info *cifs_sb, const char *path, 71 __u32 *reparse_tag); 72 extern int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, 73 struct cifs_sb_info *cifs_sb, 74 const char *full_path, FILE_ALL_INFO *data, 75 bool *adjust_tz, bool *symlink); 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 extern int smb2_set_file_info(struct inode *inode, const char *full_path, 80 FILE_BASIC_INFO *buf, const unsigned int xid); 81 extern int smb311_posix_mkdir(const unsigned int xid, struct inode *inode, 82 umode_t mode, struct cifs_tcon *tcon, 83 const char *full_path, 84 struct cifs_sb_info *cifs_sb); 85 extern int smb2_mkdir(const unsigned int xid, struct inode *inode, 86 umode_t mode, struct cifs_tcon *tcon, 87 const char *name, struct cifs_sb_info *cifs_sb); 88 extern void smb2_mkdir_setinfo(struct inode *inode, const char *full_path, 89 struct cifs_sb_info *cifs_sb, 90 struct cifs_tcon *tcon, const unsigned int xid); 91 extern int smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, 92 const char *name, struct cifs_sb_info *cifs_sb); 93 extern int smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, 94 const char *name, struct cifs_sb_info *cifs_sb); 95 extern int smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon, 96 const char *from_name, const char *to_name, 97 struct cifs_sb_info *cifs_sb); 98 extern int smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon, 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 extern int smb2_open_file(const unsigned int xid, 109 struct cifs_open_parms *oparms, 110 __u32 *oplock, FILE_ALL_INFO *buf); 111 extern int smb2_unlock_range(struct cifsFileInfo *cfile, 112 struct file_lock *flock, const unsigned int xid); 113 extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile); 114 extern void smb2_reconnect_server(struct work_struct *work); 115 extern int smb3_crypto_aead_allocate(struct TCP_Server_Info *server); 116 extern unsigned long smb_rqst_len(struct TCP_Server_Info *server, 117 struct smb_rqst *rqst); 118 extern void smb2_set_next_command(struct cifs_tcon *tcon, 119 struct smb_rqst *rqst); 120 extern void smb2_set_related(struct smb_rqst *rqst); 121 122 /* 123 * SMB2 Worker functions - most of protocol specific implementation details 124 * are contained within these calls. 125 */ 126 extern int SMB2_negotiate(const unsigned int xid, 127 struct cifs_ses *ses, 128 struct TCP_Server_Info *server); 129 extern int SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses, 130 struct TCP_Server_Info *server, 131 const struct nls_table *nls_cp); 132 extern int SMB2_logoff(const unsigned int xid, struct cifs_ses *ses); 133 extern int SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, 134 const char *tree, struct cifs_tcon *tcon, 135 const struct nls_table *); 136 extern int SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon); 137 extern int SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, 138 __le16 *path, __u8 *oplock, 139 struct smb2_file_all_info *buf, 140 struct create_posix_rsp *posix, 141 struct kvec *err_iov, int *resp_buftype); 142 extern int SMB2_open_init(struct cifs_tcon *tcon, 143 struct TCP_Server_Info *server, 144 struct smb_rqst *rqst, 145 __u8 *oplock, struct cifs_open_parms *oparms, 146 __le16 *path); 147 extern void SMB2_open_free(struct smb_rqst *rqst); 148 extern int SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, 149 u64 persistent_fid, u64 volatile_fid, u32 opcode, 150 char *in_data, u32 indatalen, u32 maxoutlen, 151 char **out_data, u32 *plen /* returned data len */); 152 extern int SMB2_ioctl_init(struct cifs_tcon *tcon, 153 struct TCP_Server_Info *server, 154 struct smb_rqst *rqst, 155 u64 persistent_fid, u64 volatile_fid, u32 opcode, 156 char *in_data, u32 indatalen, 157 __u32 max_response_size); 158 extern void SMB2_ioctl_free(struct smb_rqst *rqst); 159 extern int SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon, 160 u64 persistent_fid, u64 volatile_fid, bool watch_tree, 161 u32 completion_filter); 162 163 extern int __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, 164 u64 persistent_fid, u64 volatile_fid, 165 struct smb2_file_network_open_info *pbuf); 166 extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon, 167 u64 persistent_file_id, u64 volatile_file_id); 168 extern int SMB2_close_init(struct cifs_tcon *tcon, 169 struct TCP_Server_Info *server, 170 struct smb_rqst *rqst, 171 u64 persistent_fid, u64 volatile_fid, 172 bool query_attrs); 173 extern void SMB2_close_free(struct smb_rqst *rqst); 174 extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, 175 u64 persistent_file_id, u64 volatile_file_id); 176 extern int SMB2_flush_init(const unsigned int xid, struct smb_rqst *rqst, 177 struct cifs_tcon *tcon, 178 struct TCP_Server_Info *server, 179 u64 persistent_file_id, u64 volatile_file_id); 180 extern void SMB2_flush_free(struct smb_rqst *rqst); 181 extern int SMB311_posix_query_info(const unsigned int xid, struct cifs_tcon *tcon, 182 u64 persistent_fid, u64 volatile_fid, struct smb311_posix_qinfo *data, u32 *plen); 183 extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon, 184 u64 persistent_file_id, u64 volatile_file_id, 185 struct smb2_file_all_info *data); 186 extern int SMB2_query_info_init(struct cifs_tcon *tcon, 187 struct TCP_Server_Info *server, 188 struct smb_rqst *rqst, 189 u64 persistent_fid, u64 volatile_fid, 190 u8 info_class, u8 info_type, 191 u32 additional_info, size_t output_len, 192 size_t input_len, void *input); 193 extern void SMB2_query_info_free(struct smb_rqst *rqst); 194 extern int SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon, 195 u64 persistent_file_id, u64 volatile_file_id, 196 void **data, unsigned int *plen, u32 info); 197 extern int SMB2_get_srv_num(const unsigned int xid, struct cifs_tcon *tcon, 198 u64 persistent_fid, u64 volatile_fid, 199 __le64 *uniqueid); 200 extern int smb2_async_readv(struct cifs_readdata *rdata); 201 extern int SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms, 202 unsigned int *nbytes, char **buf, int *buf_type); 203 extern int smb2_async_writev(struct cifs_writedata *wdata, 204 void (*release)(struct kref *kref)); 205 extern int SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms, 206 unsigned int *nbytes, struct kvec *iov, int n_vec); 207 extern int SMB2_echo(struct TCP_Server_Info *server); 208 extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon, 209 u64 persistent_fid, u64 volatile_fid, int index, 210 struct cifs_search_info *srch_inf); 211 extern int SMB2_query_directory_init(unsigned int xid, struct cifs_tcon *tcon, 212 struct TCP_Server_Info *server, 213 struct smb_rqst *rqst, 214 u64 persistent_fid, u64 volatile_fid, 215 int index, int info_level); 216 extern void SMB2_query_directory_free(struct smb_rqst *rqst); 217 extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon, 218 u64 persistent_fid, u64 volatile_fid, u32 pid, 219 __le64 *eof); 220 extern int SMB2_set_info_init(struct cifs_tcon *tcon, 221 struct TCP_Server_Info *server, 222 struct smb_rqst *rqst, 223 u64 persistent_fid, u64 volatile_fid, u32 pid, 224 u8 info_class, u8 info_type, u32 additional_info, 225 void **data, unsigned int *size); 226 extern void SMB2_set_info_free(struct smb_rqst *rqst); 227 extern int SMB2_set_acl(const unsigned int xid, struct cifs_tcon *tcon, 228 u64 persistent_fid, u64 volatile_fid, 229 struct cifs_ntsd *pnntsd, int pacllen, int aclflag); 230 extern int SMB2_set_ea(const unsigned int xid, struct cifs_tcon *tcon, 231 u64 persistent_fid, u64 volatile_fid, 232 struct smb2_file_full_ea_info *buf, int len); 233 extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, 234 u64 persistent_fid, u64 volatile_fid); 235 extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon, 236 const u64 persistent_fid, const u64 volatile_fid, 237 const __u8 oplock_level); 238 extern int smb2_handle_cancelled_close(struct cifs_tcon *tcon, 239 __u64 persistent_fid, 240 __u64 volatile_fid); 241 extern int smb2_handle_cancelled_mid(struct mid_q_entry *mid, struct TCP_Server_Info *server); 242 void smb2_cancelled_close_fid(struct work_struct *work); 243 extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon, 244 u64 persistent_file_id, u64 volatile_file_id, 245 struct kstatfs *FSData); 246 extern int SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon, 247 u64 persistent_file_id, u64 volatile_file_id, 248 struct kstatfs *FSData); 249 extern int SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon, 250 u64 persistent_file_id, u64 volatile_file_id, int lvl); 251 extern int SMB2_lock(const unsigned int xid, struct cifs_tcon *tcon, 252 const __u64 persist_fid, const __u64 volatile_fid, 253 const __u32 pid, const __u64 length, const __u64 offset, 254 const __u32 lockFlags, const bool wait); 255 extern int smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon, 256 const __u64 persist_fid, const __u64 volatile_fid, 257 const __u32 pid, const __u32 num_lock, 258 struct smb2_lock_element *buf); 259 extern int SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, 260 __u8 *lease_key, const __le32 lease_state); 261 extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *); 262 263 extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *, 264 enum securityEnum); 265 extern void smb2_parse_contexts(struct TCP_Server_Info *server, 266 struct smb2_create_rsp *rsp, 267 unsigned int *epoch, char *lease_key, 268 __u8 *oplock, struct smb2_file_all_info *buf, 269 struct create_posix_rsp *posix); 270 extern int smb3_encryption_required(const struct cifs_tcon *tcon); 271 extern int smb2_validate_iov(unsigned int offset, unsigned int buffer_length, 272 struct kvec *iov, unsigned int min_buf_size); 273 extern int smb2_validate_and_copy_iov(unsigned int offset, 274 unsigned int buffer_length, 275 struct kvec *iov, 276 unsigned int minbufsize, char *data); 277 extern void smb2_copy_fs_info_to_kstatfs( 278 struct smb2_fs_full_size_info *pfs_inf, 279 struct kstatfs *kst); 280 extern int smb311_crypto_shash_allocate(struct TCP_Server_Info *server); 281 extern int smb311_update_preauth_hash(struct cifs_ses *ses, 282 struct TCP_Server_Info *server, 283 struct kvec *iov, int nvec); 284 extern int smb2_query_info_compound(const unsigned int xid, 285 struct cifs_tcon *tcon, 286 const char *path, u32 desired_access, 287 u32 class, u32 type, u32 output_len, 288 struct kvec *rsp, int *buftype, 289 struct cifs_sb_info *cifs_sb); 290 /* query path info from the server using SMB311 POSIX extensions*/ 291 extern int smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, 292 struct cifs_sb_info *sb, const char *path, struct smb311_posix_qinfo *qinf, 293 bool *adjust_tx, bool *symlink); 294 int posix_info_parse(const void *beg, const void *end, 295 struct smb2_posix_info_parsed *out); 296 int posix_info_sid_size(const void *beg, const void *end); 297 #endif /* _SMB2PROTO_H */ 298