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1/* SPDX-License-Identifier: LGPL-2.1 */
2/*
3 * fs/cifs/smb2proto.h
4 *
5 * Copyright (c) International Business Machines Corp., 2002, 2011
6 * Etersoft, 2012
7 * Author(s): Steve French (sfrench@us.ibm.com)
8 * Pavel Shilovsky (pshilovsky@samba.org) 2012
9 *
10 */
11#ifndef _SMB2PROTO_H
12#define _SMB2PROTO_H
13#include <linux/nls.h>
14#include <linux/key-type.h>
15
16struct statfs;
17struct smb_rqst;
18
19/*
20 *****************************************************************
21 * All Prototypes
22 *****************************************************************
23 */
24extern int map_smb2_to_linux_error(char *buf, bool log_err);
25extern int smb2_check_message(char *buf, unsigned int length,
26 struct TCP_Server_Info *server);
27extern unsigned int smb2_calc_size(void *buf, struct TCP_Server_Info *server);
28extern char *smb2_get_data_area_len(int *off, int *len,
29 struct smb2_sync_hdr *shdr);
30extern __le16 *cifs_convert_path_to_utf16(const char *from,
31 struct cifs_sb_info *cifs_sb);
32
33extern int smb2_verify_signature(struct smb_rqst *, struct TCP_Server_Info *);
34extern int smb2_check_receive(struct mid_q_entry *mid,
35 struct TCP_Server_Info *server, bool log_error);
36extern struct mid_q_entry *smb2_setup_request(struct cifs_ses *ses,
37 struct TCP_Server_Info *,
38 struct smb_rqst *rqst);
39extern struct mid_q_entry *smb2_setup_async_request(
40 struct TCP_Server_Info *server, struct smb_rqst *rqst);
41extern struct cifs_ses *smb2_find_smb_ses(struct TCP_Server_Info *server,
42 __u64 ses_id);
43extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server,
44 __u64 ses_id, __u32 tid);
45extern int smb2_calc_signature(struct smb_rqst *rqst,
46 struct TCP_Server_Info *server,
47 bool allocate_crypto);
48extern int smb3_calc_signature(struct smb_rqst *rqst,
49 struct TCP_Server_Info *server,
50 bool allocate_crypto);
51extern void smb2_echo_request(struct work_struct *work);
52extern __le32 smb2_get_lease_state(struct cifsInodeInfo *cinode);
53extern bool smb2_is_valid_oplock_break(char *buffer,
54 struct TCP_Server_Info *srv);
55extern int smb3_handle_read_data(struct TCP_Server_Info *server,
56 struct mid_q_entry *mid);
57
58extern int open_cached_dir(unsigned int xid, struct cifs_tcon *tcon,
59 const char *path,
60 struct cifs_sb_info *cifs_sb,
61 struct cached_fid **cfid);
62extern int open_cached_dir_by_dentry(struct cifs_tcon *tcon,
63 struct dentry *dentry,
64 struct cached_fid **cfid);
65extern void close_cached_dir(struct cached_fid *cfid);
66extern void close_cached_dir_lease(struct cached_fid *cfid);
67extern void close_cached_dir_lease_locked(struct cached_fid *cfid);
68extern void move_smb2_info_to_cifs(FILE_ALL_INFO *dst,
69 struct smb2_file_all_info *src);
70extern int smb2_query_reparse_tag(const unsigned int xid, struct cifs_tcon *tcon,
71 struct cifs_sb_info *cifs_sb, const char *path,
72 __u32 *reparse_tag);
73extern int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
74 struct cifs_sb_info *cifs_sb,
75 const char *full_path, FILE_ALL_INFO *data,
76 bool *adjust_tz, bool *symlink);
77extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
78 const char *full_path, __u64 size,
79 struct cifs_sb_info *cifs_sb, bool set_alloc);
80extern int smb2_set_file_info(struct inode *inode, const char *full_path,
81 FILE_BASIC_INFO *buf, const unsigned int xid);
82extern 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);
86extern 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);
89extern 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);
92extern int smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
93 const char *name, struct cifs_sb_info *cifs_sb);
94extern int smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon,
95 const char *name, struct cifs_sb_info *cifs_sb);
96extern int smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
97 const char *from_name, const char *to_name,
98 struct cifs_sb_info *cifs_sb);
99extern int smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
100 const char *from_name, const char *to_name,
101 struct cifs_sb_info *cifs_sb);
102extern int smb3_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
103 struct cifs_sb_info *cifs_sb, const unsigned char *path,
104 char *pbuf, unsigned int *pbytes_written);
105extern int smb3_query_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
106 struct cifs_sb_info *cifs_sb,
107 const unsigned char *path, char *pbuf,
108 unsigned int *pbytes_read);
109extern int smb2_open_file(const unsigned int xid,
110 struct cifs_open_parms *oparms,
111 __u32 *oplock, FILE_ALL_INFO *buf);
112extern int smb2_unlock_range(struct cifsFileInfo *cfile,
113 struct file_lock *flock, const unsigned int xid);
114extern int smb2_push_mandatory_locks(struct cifsFileInfo *cfile);
115extern void smb2_reconnect_server(struct work_struct *work);
116extern int smb3_crypto_aead_allocate(struct TCP_Server_Info *server);
117extern unsigned long smb_rqst_len(struct TCP_Server_Info *server,
118 struct smb_rqst *rqst);
119extern void smb2_set_next_command(struct cifs_tcon *tcon,
120 struct smb_rqst *rqst);
121extern void smb2_set_related(struct smb_rqst *rqst);
122
123/*
124 * SMB2 Worker functions - most of protocol specific implementation details
125 * are contained within these calls.
126 */
127extern int SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses);
128extern int SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
129 const struct nls_table *nls_cp);
130extern int SMB2_logoff(const unsigned int xid, struct cifs_ses *ses);
131extern int SMB2_tcon(const unsigned int xid, struct cifs_ses *ses,
132 const char *tree, struct cifs_tcon *tcon,
133 const struct nls_table *);
134extern int SMB2_tdis(const unsigned int xid, struct cifs_tcon *tcon);
135extern int SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms,
136 __le16 *path, __u8 *oplock,
137 struct smb2_file_all_info *buf,
138 struct create_posix_rsp *posix,
139 struct kvec *err_iov, int *resp_buftype);
140extern int SMB2_open_init(struct cifs_tcon *tcon,
141 struct TCP_Server_Info *server,
142 struct smb_rqst *rqst,
143 __u8 *oplock, struct cifs_open_parms *oparms,
144 __le16 *path);
145extern void SMB2_open_free(struct smb_rqst *rqst);
146extern int SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon,
147 u64 persistent_fid, u64 volatile_fid, u32 opcode,
148 bool is_fsctl, char *in_data, u32 indatalen, u32 maxoutlen,
149 char **out_data, u32 *plen /* returned data len */);
150extern int SMB2_ioctl_init(struct cifs_tcon *tcon,
151 struct TCP_Server_Info *server,
152 struct smb_rqst *rqst,
153 u64 persistent_fid, u64 volatile_fid, u32 opcode,
154 bool is_fsctl, char *in_data, u32 indatalen,
155 __u32 max_response_size);
156extern void SMB2_ioctl_free(struct smb_rqst *rqst);
157extern int SMB2_change_notify(const unsigned int xid, struct cifs_tcon *tcon,
158 u64 persistent_fid, u64 volatile_fid, bool watch_tree,
159 u32 completion_filter);
160
161extern int __SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
162 u64 persistent_fid, u64 volatile_fid,
163 struct smb2_file_network_open_info *pbuf);
164extern int SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
165 u64 persistent_file_id, u64 volatile_file_id);
166extern int SMB2_close_init(struct cifs_tcon *tcon,
167 struct TCP_Server_Info *server,
168 struct smb_rqst *rqst,
169 u64 persistent_fid, u64 volatile_fid,
170 bool query_attrs);
171extern void SMB2_close_free(struct smb_rqst *rqst);
172extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
173 u64 persistent_file_id, u64 volatile_file_id);
174extern int SMB2_flush_init(const unsigned int xid, struct smb_rqst *rqst,
175 struct cifs_tcon *tcon,
176 struct TCP_Server_Info *server,
177 u64 persistent_file_id, u64 volatile_file_id);
178extern void SMB2_flush_free(struct smb_rqst *rqst);
179extern int SMB311_posix_query_info(const unsigned int xid, struct cifs_tcon *tcon,
180 u64 persistent_fid, u64 volatile_fid, struct smb311_posix_qinfo *data, u32 *plen);
181extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
182 u64 persistent_file_id, u64 volatile_file_id,
183 struct smb2_file_all_info *data);
184extern int SMB2_query_info_init(struct cifs_tcon *tcon,
185 struct TCP_Server_Info *server,
186 struct smb_rqst *rqst,
187 u64 persistent_fid, u64 volatile_fid,
188 u8 info_class, u8 info_type,
189 u32 additional_info, size_t output_len,
190 size_t input_len, void *input);
191extern void SMB2_query_info_free(struct smb_rqst *rqst);
192extern int SMB2_query_acl(const unsigned int xid, struct cifs_tcon *tcon,
193 u64 persistent_file_id, u64 volatile_file_id,
194 void **data, unsigned int *plen, u32 info);
195extern int SMB2_get_srv_num(const unsigned int xid, struct cifs_tcon *tcon,
196 u64 persistent_fid, u64 volatile_fid,
197 __le64 *uniqueid);
198extern int smb2_async_readv(struct cifs_readdata *rdata);
199extern int SMB2_read(const unsigned int xid, struct cifs_io_parms *io_parms,
200 unsigned int *nbytes, char **buf, int *buf_type);
201extern int smb2_async_writev(struct cifs_writedata *wdata,
202 void (*release)(struct kref *kref));
203extern int SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
204 unsigned int *nbytes, struct kvec *iov, int n_vec);
205extern int SMB2_echo(struct TCP_Server_Info *server);
206extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
207 u64 persistent_fid, u64 volatile_fid, int index,
208 struct cifs_search_info *srch_inf);
209extern int SMB2_query_directory_init(unsigned int xid, struct cifs_tcon *tcon,
210 struct TCP_Server_Info *server,
211 struct smb_rqst *rqst,
212 u64 persistent_fid, u64 volatile_fid,
213 int index, int info_level);
214extern void SMB2_query_directory_free(struct smb_rqst *rqst);
215extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon,
216 u64 persistent_fid, u64 volatile_fid, u32 pid,
217 __le64 *eof);
218extern int SMB2_set_info_init(struct cifs_tcon *tcon,
219 struct TCP_Server_Info *server,
220 struct smb_rqst *rqst,
221 u64 persistent_fid, u64 volatile_fid, u32 pid,
222 u8 info_class, u8 info_type, u32 additional_info,
223 void **data, unsigned int *size);
224extern void SMB2_set_info_free(struct smb_rqst *rqst);
225extern int SMB2_set_acl(const unsigned int xid, struct cifs_tcon *tcon,
226 u64 persistent_fid, u64 volatile_fid,
227 struct cifs_ntsd *pnntsd, int pacllen, int aclflag);
228extern int SMB2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
229 u64 persistent_fid, u64 volatile_fid,
230 struct smb2_file_full_ea_info *buf, int len);
231extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
232 u64 persistent_fid, u64 volatile_fid);
233extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
234 const u64 persistent_fid, const u64 volatile_fid,
235 const __u8 oplock_level);
236extern int smb2_handle_cancelled_close(struct cifs_tcon *tcon,
237 __u64 persistent_fid,
238 __u64 volatile_fid);
239extern int smb2_handle_cancelled_mid(struct mid_q_entry *mid, struct TCP_Server_Info *server);
240void smb2_cancelled_close_fid(struct work_struct *work);
241extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
242 u64 persistent_file_id, u64 volatile_file_id,
243 struct kstatfs *FSData);
244extern int SMB311_posix_qfs_info(const unsigned int xid, struct cifs_tcon *tcon,
245 u64 persistent_file_id, u64 volatile_file_id,
246 struct kstatfs *FSData);
247extern int SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
248 u64 persistent_file_id, u64 volatile_file_id, int lvl);
249extern int SMB2_lock(const unsigned int xid, struct cifs_tcon *tcon,
250 const __u64 persist_fid, const __u64 volatile_fid,
251 const __u32 pid, const __u64 length, const __u64 offset,
252 const __u32 lockFlags, const bool wait);
253extern int smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon,
254 const __u64 persist_fid, const __u64 volatile_fid,
255 const __u32 pid, const __u32 num_lock,
256 struct smb2_lock_element *buf);
257extern int SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon,
258 __u8 *lease_key, const __le32 lease_state);
259extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *);
260
261extern enum securityEnum smb2_select_sectype(struct TCP_Server_Info *,
262 enum securityEnum);
263extern void smb2_parse_contexts(struct TCP_Server_Info *server,
264 struct smb2_create_rsp *rsp,
265 unsigned int *epoch, char *lease_key,
266 __u8 *oplock, struct smb2_file_all_info *buf,
267 struct create_posix_rsp *posix);
268extern int smb3_encryption_required(const struct cifs_tcon *tcon);
269extern int smb2_validate_iov(unsigned int offset, unsigned int buffer_length,
270 struct kvec *iov, unsigned int min_buf_size);
271extern int smb2_validate_and_copy_iov(unsigned int offset,
272 unsigned int buffer_length,
273 struct kvec *iov,
274 unsigned int minbufsize, char *data);
275extern void smb2_copy_fs_info_to_kstatfs(
276 struct smb2_fs_full_size_info *pfs_inf,
277 struct kstatfs *kst);
278extern int smb311_crypto_shash_allocate(struct TCP_Server_Info *server);
279extern int smb311_update_preauth_hash(struct cifs_ses *ses,
280 struct kvec *iov, int nvec);
281extern int smb2_query_info_compound(const unsigned int xid,
282 struct cifs_tcon *tcon,
283 __le16 *utf16_path, u32 desired_access,
284 u32 class, u32 type, u32 output_len,
285 struct kvec *rsp, int *buftype,
286 struct cifs_sb_info *cifs_sb);
287/* query path info from the server using SMB311 POSIX extensions*/
288extern int smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
289 struct cifs_sb_info *sb, const char *path, struct smb311_posix_qinfo *qinf,
290 bool *adjust_tx, bool *symlink);
291int posix_info_parse(const void *beg, const void *end,
292 struct smb2_posix_info_parsed *out);
293int posix_info_sid_size(const void *beg, const void *end);
294#endif /* _SMB2PROTO_H */