Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * fs/cifs/cifsglob.h |
| 3 | * |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 4 | * Copyright (C) International Business Machines Corp., 2002,2008 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Author(s): Steve French (sfrench@us.ibm.com) |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 6 | * Jeremy Allison (jra@samba.org) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * This library is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU Lesser General Public License as published |
| 10 | * by the Free Software Foundation; either version 2.1 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| 16 | * the GNU Lesser General Public License for more details. |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 17 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | */ |
Suresh Jayaraman | abd2e44 | 2010-06-22 20:52:50 +0530 | [diff] [blame] | 19 | #ifndef _CIFS_GLOB_H |
| 20 | #define _CIFS_GLOB_H |
| 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/in.h> |
| 23 | #include <linux/in6.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 24 | #include <linux/slab.h> |
Pavel Shilovsky | 2dc7e1c | 2011-12-26 22:53:34 +0400 | [diff] [blame] | 25 | #include <linux/mempool.h> |
Tejun Heo | 9b64697 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 26 | #include <linux/workqueue.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include "cifs_fs_sb.h" |
Steve French | 442aa31 | 2007-09-24 20:25:46 +0000 | [diff] [blame] | 28 | #include "cifsacl.h" |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 29 | #include <crypto/internal/hash.h> |
| 30 | #include <linux/scatterlist.h> |
Scott Lovenberg | 8c3a2b4 | 2013-08-09 08:47:17 -0400 | [diff] [blame] | 31 | #include <uapi/linux/cifs/cifs_mount.h> |
Pavel Shilovsky | d60622e | 2012-05-28 15:19:39 +0400 | [diff] [blame] | 32 | #ifdef CONFIG_CIFS_SMB2 |
| 33 | #include "smb2pdu.h" |
| 34 | #endif |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 35 | |
Pavel Shilovsky | 76ec5e3 | 2012-09-18 16:20:33 -0700 | [diff] [blame] | 36 | #define CIFS_MAGIC_NUMBER 0xFF534D42 /* the first four bytes of SMB PDUs */ |
| 37 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | /* |
| 39 | * The sizes of various internal tables and strings |
| 40 | */ |
| 41 | #define MAX_UID_INFO 16 |
| 42 | #define MAX_SES_INFO 2 |
| 43 | #define MAX_TCON_INFO 4 |
| 44 | |
Scott Lovenberg | cdf1246 | 2013-08-09 08:47:19 -0400 | [diff] [blame] | 45 | #define MAX_TREE_SIZE (2 + CIFS_NI_MAXHOST + 1 + CIFS_MAX_SHARE_LEN + 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 46 | |
| 47 | #define CIFS_MIN_RCV_POOL 4 |
| 48 | |
Shirish Pargaonkar | 2c0c2a0 | 2012-05-21 09:20:12 -0500 | [diff] [blame] | 49 | #define MAX_REOPEN_ATT 5 /* these many maximum attempts to reopen a file */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | /* |
Suresh Jayaraman | 6d20e84 | 2010-12-01 14:42:28 +0530 | [diff] [blame] | 51 | * default attribute cache timeout (jiffies) |
| 52 | */ |
| 53 | #define CIFS_DEF_ACTIMEO (1 * HZ) |
| 54 | |
| 55 | /* |
| 56 | * max attribute cache timeout (jiffies) - 2^30 |
| 57 | */ |
| 58 | #define CIFS_MAX_ACTIMEO (1 << 30) |
| 59 | |
| 60 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | * MAX_REQ is the maximum number of requests that WE will send |
Pavel Shilovsky | 10b9b98 | 2012-03-20 12:55:09 +0300 | [diff] [blame] | 62 | * on one socket concurrently. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | */ |
Pavel Shilovsky | 10b9b98 | 2012-03-20 12:55:09 +0300 | [diff] [blame] | 64 | #define CIFS_MAX_REQ 32767 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 66 | #define RFC1001_NAME_LEN 15 |
| 67 | #define RFC1001_NAME_LEN_WITH_NULL (RFC1001_NAME_LEN + 1) |
| 68 | |
| 69 | /* currently length of NIP6_FMT */ |
| 70 | #define SERVER_NAME_LENGTH 40 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | #define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1) |
| 72 | |
Steve French | adfeb3e | 2015-12-18 12:31:36 -0600 | [diff] [blame] | 73 | /* echo interval in seconds */ |
| 74 | #define SMB_ECHO_INTERVAL_MIN 1 |
| 75 | #define SMB_ECHO_INTERVAL_MAX 600 |
| 76 | #define SMB_ECHO_INTERVAL_DEFAULT 60 |
Pavel Shilovsky | 9094fad | 2012-07-12 18:30:44 +0400 | [diff] [blame] | 77 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | #include "cifspdu.h" |
| 79 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | #ifndef XATTR_DOS_ATTRIB |
| 81 | #define XATTR_DOS_ATTRIB "user.DOSATTRIB" |
| 82 | #endif |
| 83 | |
| 84 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | * CIFS vfs client Status information (based on what we know.) |
| 86 | */ |
| 87 | |
Steve French | 6c0f621 | 2010-10-23 16:51:40 +0000 | [diff] [blame] | 88 | /* associated with each tcp and smb session */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | enum statusEnum { |
| 90 | CifsNew = 0, |
| 91 | CifsGood, |
| 92 | CifsExiting, |
Steve French | fd88ce9 | 2011-04-12 01:01:14 +0000 | [diff] [blame] | 93 | CifsNeedReconnect, |
| 94 | CifsNeedNegotiate |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | }; |
| 96 | |
| 97 | enum securityEnum { |
Jeff Layton | 515d82f | 2013-05-26 07:00:58 -0400 | [diff] [blame] | 98 | Unspecified = 0, /* not specified */ |
| 99 | LANMAN, /* Legacy LANMAN auth */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 100 | NTLM, /* Legacy NTLM012 auth with NTLM hash */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 102 | RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */ |
Steve French | c16fefa | 2008-08-19 19:35:33 +0000 | [diff] [blame] | 103 | Kerberos, /* Kerberos via SPNEGO */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | }; |
| 105 | |
Shirish Pargaonkar | 5f98ca9 | 2010-09-18 22:01:58 -0500 | [diff] [blame] | 106 | struct session_key { |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 107 | unsigned int len; |
Shirish Pargaonkar | 21e7339 | 2010-10-21 06:42:55 -0500 | [diff] [blame] | 108 | char *response; |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 109 | }; |
| 110 | |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 111 | /* crypto security descriptor definition */ |
| 112 | struct sdesc { |
| 113 | struct shash_desc shash; |
| 114 | char ctx[]; |
| 115 | }; |
| 116 | |
Shirish Pargaonkar | f7c5445 | 2010-10-26 18:10:24 -0500 | [diff] [blame] | 117 | /* crypto hashing related structure/fields, not specific to a sec mech */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 118 | struct cifs_secmech { |
| 119 | struct crypto_shash *hmacmd5; /* hmac-md5 hash function */ |
| 120 | struct crypto_shash *md5; /* md5 hash function */ |
Pavel Shilovsky | 3c1bf7e | 2012-09-18 16:20:30 -0700 | [diff] [blame] | 121 | struct crypto_shash *hmacsha256; /* hmac-sha256 hash function */ |
Steve French | 429b46f | 2013-06-26 23:45:05 -0500 | [diff] [blame] | 122 | struct crypto_shash *cmacaes; /* block-cipher based MAC function */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 123 | struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */ |
| 124 | struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */ |
Pavel Shilovsky | 3c1bf7e | 2012-09-18 16:20:30 -0700 | [diff] [blame] | 125 | struct sdesc *sdeschmacsha256; /* ctxt to generate smb2 signature */ |
Steve French | 429b46f | 2013-06-26 23:45:05 -0500 | [diff] [blame] | 126 | struct sdesc *sdesccmacaes; /* ctxt to generate smb3 signature */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 127 | }; |
| 128 | |
Shirish Pargaonkar | d3686d5 | 2010-10-28 09:53:07 -0500 | [diff] [blame] | 129 | /* per smb session structure/fields */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 130 | struct ntlmssp_auth { |
Shirish Pargaonkar | 5c234aa | 2013-08-29 08:35:10 -0500 | [diff] [blame] | 131 | bool sesskey_per_smbsess; /* whether session key is per smb session */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 132 | __u32 client_flags; /* sent by client in type 1 ntlmsssp exchange */ |
| 133 | __u32 server_flags; /* sent by server in type 2 ntlmssp exchange */ |
| 134 | unsigned char ciphertext[CIFS_CPHTXT_SIZE]; /* sent to server */ |
Shirish Pargaonkar | d3686d5 | 2010-10-28 09:53:07 -0500 | [diff] [blame] | 135 | char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlmssp */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 136 | }; |
| 137 | |
Steve French | 442aa31 | 2007-09-24 20:25:46 +0000 | [diff] [blame] | 138 | struct cifs_cred { |
| 139 | int uid; |
| 140 | int gid; |
| 141 | int mode; |
| 142 | int cecount; |
| 143 | struct cifs_sid osid; |
| 144 | struct cifs_sid gsid; |
| 145 | struct cifs_ntace *ntaces; |
| 146 | struct cifs_ace *aces; |
| 147 | }; |
| 148 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | /* |
| 150 | ***************************************************************** |
| 151 | * Except the CIFS PDUs themselves all the |
| 152 | * globally interesting structs should go here |
| 153 | ***************************************************************** |
| 154 | */ |
| 155 | |
Jeff Layton | bf5ea0e | 2012-09-18 16:20:34 -0700 | [diff] [blame] | 156 | /* |
| 157 | * A smb_rqst represents a complete request to be issued to a server. It's |
| 158 | * formed by a kvec array, followed by an array of pages. Page data is assumed |
| 159 | * to start at the beginning of the first page. |
| 160 | */ |
| 161 | struct smb_rqst { |
| 162 | struct kvec *rq_iov; /* array of kvecs */ |
| 163 | unsigned int rq_nvec; /* number of kvecs in array */ |
| 164 | struct page **rq_pages; /* pointer to array of page ptrs */ |
| 165 | unsigned int rq_npages; /* number pages in array */ |
| 166 | unsigned int rq_pagesz; /* page size to use */ |
| 167 | unsigned int rq_tailsz; /* length of last page */ |
| 168 | }; |
| 169 | |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 170 | enum smb_version { |
| 171 | Smb_1 = 1, |
Steve French | dd446b1 | 2012-11-28 23:21:06 -0600 | [diff] [blame] | 172 | Smb_20, |
Steve French | 1080ef7 | 2011-02-24 18:07:19 +0000 | [diff] [blame] | 173 | Smb_21, |
Steve French | e4aa25e | 2012-10-01 12:26:22 -0500 | [diff] [blame] | 174 | Smb_30, |
Steve French | 20b6d8b | 2013-06-12 22:48:41 -0500 | [diff] [blame] | 175 | Smb_302, |
Steve French | 5f7fbf7 | 2014-12-17 22:52:58 -0600 | [diff] [blame] | 176 | #ifdef CONFIG_CIFS_SMB311 |
| 177 | Smb_311, |
| 178 | #endif /* SMB311 */ |
| 179 | Smb_version_err |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 180 | }; |
| 181 | |
Jeff Layton | 121b046 | 2012-05-15 12:21:10 -0400 | [diff] [blame] | 182 | struct mid_q_entry; |
| 183 | struct TCP_Server_Info; |
Pavel Shilovsky | 55157df | 2012-02-28 14:04:17 +0300 | [diff] [blame] | 184 | struct cifsFileInfo; |
Pavel Shilovsky | 082d064 | 2012-05-17 12:18:21 +0400 | [diff] [blame] | 185 | struct cifs_ses; |
Pavel Shilovsky | 2e6e02a | 2012-05-25 11:11:39 +0400 | [diff] [blame] | 186 | struct cifs_tcon; |
Pavel Shilovsky | b669f33 | 2012-05-27 20:21:53 +0400 | [diff] [blame] | 187 | struct dfs_info3_param; |
Pavel Shilovsky | 1208ef1 | 2012-05-27 17:34:43 +0400 | [diff] [blame] | 188 | struct cifs_fattr; |
Pavel Shilovsky | 9224dfc | 2012-05-27 20:39:52 +0400 | [diff] [blame] | 189 | struct smb_vol; |
Pavel Shilovsky | fb1214e | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 190 | struct cifs_fid; |
Pavel Shilovsky | fc9c596 | 2012-09-18 16:20:28 -0700 | [diff] [blame] | 191 | struct cifs_readdata; |
Pavel Shilovsky | c9de5c8 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 192 | struct cifs_writedata; |
Pavel Shilovsky | f9c6e23 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 193 | struct cifs_io_parms; |
Pavel Shilovsky | 92fc65a | 2012-09-18 16:20:32 -0700 | [diff] [blame] | 194 | struct cifs_search_info; |
Pavel Shilovsky | 95a3f2f | 2012-09-18 16:20:33 -0700 | [diff] [blame] | 195 | struct cifsInodeInfo; |
Pavel Shilovsky | 226730b | 2013-07-05 12:00:30 +0400 | [diff] [blame] | 196 | struct cifs_open_parms; |
Jeff Layton | 121b046 | 2012-05-15 12:21:10 -0400 | [diff] [blame] | 197 | |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 198 | struct smb_version_operations { |
Jeff Layton | 121b046 | 2012-05-15 12:21:10 -0400 | [diff] [blame] | 199 | int (*send_cancel)(struct TCP_Server_Info *, void *, |
| 200 | struct mid_q_entry *); |
Pavel Shilovsky | 55157df | 2012-02-28 14:04:17 +0300 | [diff] [blame] | 201 | bool (*compare_fids)(struct cifsFileInfo *, struct cifsFileInfo *); |
Pavel Shilovsky | 082d064 | 2012-05-17 12:18:21 +0400 | [diff] [blame] | 202 | /* setup request: allocate mid, sign message */ |
Jeff Layton | fec344e | 2012-09-18 16:20:35 -0700 | [diff] [blame] | 203 | struct mid_q_entry *(*setup_request)(struct cifs_ses *, |
| 204 | struct smb_rqst *); |
Pavel Shilovsky | 4574084 | 2012-06-01 14:26:18 +0400 | [diff] [blame] | 205 | /* setup async request: allocate mid, sign message */ |
Jeff Layton | fec344e | 2012-09-18 16:20:35 -0700 | [diff] [blame] | 206 | struct mid_q_entry *(*setup_async_request)(struct TCP_Server_Info *, |
| 207 | struct smb_rqst *); |
Pavel Shilovsky | 082d064 | 2012-05-17 12:18:21 +0400 | [diff] [blame] | 208 | /* check response: verify signature, map error */ |
| 209 | int (*check_receive)(struct mid_q_entry *, struct TCP_Server_Info *, |
| 210 | bool); |
Pavel Shilovsky | a891f0f | 2012-05-23 16:14:34 +0400 | [diff] [blame] | 211 | void (*add_credits)(struct TCP_Server_Info *, const unsigned int, |
| 212 | const int); |
Pavel Shilovsky | 4527578 | 2012-05-17 17:53:29 +0400 | [diff] [blame] | 213 | void (*set_credits)(struct TCP_Server_Info *, const int); |
Pavel Shilovsky | a891f0f | 2012-05-23 16:14:34 +0400 | [diff] [blame] | 214 | int * (*get_credits_field)(struct TCP_Server_Info *, const int); |
| 215 | unsigned int (*get_credits)(struct mid_q_entry *); |
Pavel Shilovsky | 8825736 | 2012-05-23 14:01:59 +0400 | [diff] [blame] | 216 | __u64 (*get_next_mid)(struct TCP_Server_Info *); |
Pavel Shilovsky | eb37871 | 2012-05-17 13:02:51 +0400 | [diff] [blame] | 217 | /* data offset from read response message */ |
| 218 | unsigned int (*read_data_offset)(char *); |
| 219 | /* data length from read response message */ |
| 220 | unsigned int (*read_data_length)(char *); |
| 221 | /* map smb to linux error */ |
| 222 | int (*map_error)(char *, bool); |
Pavel Shilovsky | 8aa26f3 | 2012-05-17 13:25:35 +0400 | [diff] [blame] | 223 | /* find mid corresponding to the response message */ |
| 224 | struct mid_q_entry * (*find_mid)(struct TCP_Server_Info *, char *); |
| 225 | void (*dump_detail)(void *); |
Pavel Shilovsky | 44c5818 | 2012-05-28 14:16:31 +0400 | [diff] [blame] | 226 | void (*clear_stats)(struct cifs_tcon *); |
| 227 | void (*print_stats)(struct seq_file *m, struct cifs_tcon *); |
Steve French | 769ee6a | 2013-06-19 14:15:30 -0500 | [diff] [blame] | 228 | void (*dump_share_caps)(struct seq_file *, struct cifs_tcon *); |
Pavel Shilovsky | 8aa26f3 | 2012-05-17 13:25:35 +0400 | [diff] [blame] | 229 | /* verify the message */ |
Steve French | 373512e | 2015-12-18 13:05:30 -0600 | [diff] [blame] | 230 | int (*check_message)(char *, unsigned int, struct TCP_Server_Info *); |
Pavel Shilovsky | 8aa26f3 | 2012-05-17 13:25:35 +0400 | [diff] [blame] | 231 | bool (*is_oplock_break)(char *, struct TCP_Server_Info *); |
Sachin Prabhu | c11f1df | 2014-03-11 16:11:47 +0000 | [diff] [blame] | 232 | void (*downgrade_oplock)(struct TCP_Server_Info *, |
| 233 | struct cifsInodeInfo *, bool); |
Pavel Shilovsky | 316cf94 | 2012-05-23 14:31:03 +0400 | [diff] [blame] | 234 | /* process transaction2 response */ |
| 235 | bool (*check_trans2)(struct mid_q_entry *, struct TCP_Server_Info *, |
| 236 | char *, int); |
Pavel Shilovsky | 286170a | 2012-05-25 10:43:58 +0400 | [diff] [blame] | 237 | /* check if we need to negotiate */ |
| 238 | bool (*need_neg)(struct TCP_Server_Info *); |
| 239 | /* negotiate to the server */ |
| 240 | int (*negotiate)(const unsigned int, struct cifs_ses *); |
Pavel Shilovsky | 24985c5 | 2012-09-18 16:20:28 -0700 | [diff] [blame] | 241 | /* set negotiated write size */ |
| 242 | unsigned int (*negotiate_wsize)(struct cifs_tcon *, struct smb_vol *); |
| 243 | /* set negotiated read size */ |
| 244 | unsigned int (*negotiate_rsize)(struct cifs_tcon *, struct smb_vol *); |
Pavel Shilovsky | 58c45c5 | 2012-05-25 10:54:49 +0400 | [diff] [blame] | 245 | /* setup smb sessionn */ |
| 246 | int (*sess_setup)(const unsigned int, struct cifs_ses *, |
| 247 | const struct nls_table *); |
| 248 | /* close smb session */ |
| 249 | int (*logoff)(const unsigned int, struct cifs_ses *); |
Pavel Shilovsky | 2e6e02a | 2012-05-25 11:11:39 +0400 | [diff] [blame] | 250 | /* connect to a server share */ |
| 251 | int (*tree_connect)(const unsigned int, struct cifs_ses *, const char *, |
| 252 | struct cifs_tcon *, const struct nls_table *); |
| 253 | /* close tree connecion */ |
| 254 | int (*tree_disconnect)(const unsigned int, struct cifs_tcon *); |
Pavel Shilovsky | b669f33 | 2012-05-27 20:21:53 +0400 | [diff] [blame] | 255 | /* get DFS referrals */ |
| 256 | int (*get_dfs_refer)(const unsigned int, struct cifs_ses *, |
| 257 | const char *, struct dfs_info3_param **, |
| 258 | unsigned int *, const struct nls_table *, int); |
Pavel Shilovsky | af4281d | 2012-05-27 20:48:35 +0400 | [diff] [blame] | 259 | /* informational QFS call */ |
| 260 | void (*qfs_tcon)(const unsigned int, struct cifs_tcon *); |
Pavel Shilovsky | 68889f2 | 2012-05-25 14:40:22 +0400 | [diff] [blame] | 261 | /* check if a path is accessible or not */ |
| 262 | int (*is_path_accessible)(const unsigned int, struct cifs_tcon *, |
| 263 | struct cifs_sb_info *, const char *); |
Pavel Shilovsky | 1208ef1 | 2012-05-27 17:34:43 +0400 | [diff] [blame] | 264 | /* query path data from the server */ |
| 265 | int (*query_path_info)(const unsigned int, struct cifs_tcon *, |
| 266 | struct cifs_sb_info *, const char *, |
Pavel Shilovsky | eb85d94b | 2013-10-23 17:49:47 +0400 | [diff] [blame] | 267 | FILE_ALL_INFO *, bool *, bool *); |
Pavel Shilovsky | 4ad6504 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 268 | /* query file data from the server */ |
| 269 | int (*query_file_info)(const unsigned int, struct cifs_tcon *, |
| 270 | struct cifs_fid *, FILE_ALL_INFO *); |
Pavel Shilovsky | 1208ef1 | 2012-05-27 17:34:43 +0400 | [diff] [blame] | 271 | /* get server index number */ |
| 272 | int (*get_srv_inum)(const unsigned int, struct cifs_tcon *, |
| 273 | struct cifs_sb_info *, const char *, |
| 274 | u64 *uniqueid, FILE_ALL_INFO *); |
Pavel Shilovsky | d143341 | 2012-09-18 16:20:31 -0700 | [diff] [blame] | 275 | /* set size by path */ |
| 276 | int (*set_path_size)(const unsigned int, struct cifs_tcon *, |
| 277 | const char *, __u64, struct cifs_sb_info *, bool); |
| 278 | /* set size by file handle */ |
| 279 | int (*set_file_size)(const unsigned int, struct cifs_tcon *, |
| 280 | struct cifsFileInfo *, __u64, bool); |
Pavel Shilovsky | 6bdf6db | 2012-09-18 16:20:32 -0700 | [diff] [blame] | 281 | /* set attributes */ |
| 282 | int (*set_file_info)(struct inode *, const char *, FILE_BASIC_INFO *, |
| 283 | const unsigned int); |
Steve French | 64a5cfa | 2013-10-14 15:31:32 -0500 | [diff] [blame] | 284 | int (*set_compression)(const unsigned int, struct cifs_tcon *, |
| 285 | struct cifsFileInfo *); |
Pavel Shilovsky | f6d7617 | 2012-05-25 14:47:16 +0400 | [diff] [blame] | 286 | /* check if we can send an echo or nor */ |
| 287 | bool (*can_echo)(struct TCP_Server_Info *); |
| 288 | /* send echo request */ |
| 289 | int (*echo)(struct TCP_Server_Info *); |
Pavel Shilovsky | f436720 | 2012-03-17 11:41:12 +0300 | [diff] [blame] | 290 | /* create directory */ |
| 291 | int (*mkdir)(const unsigned int, struct cifs_tcon *, const char *, |
| 292 | struct cifs_sb_info *); |
| 293 | /* set info on created directory */ |
| 294 | void (*mkdir_setinfo)(struct inode *, const char *, |
| 295 | struct cifs_sb_info *, struct cifs_tcon *, |
| 296 | const unsigned int); |
Pavel Shilovsky | f958ca5 | 2012-07-10 16:14:18 +0400 | [diff] [blame] | 297 | /* remove directory */ |
| 298 | int (*rmdir)(const unsigned int, struct cifs_tcon *, const char *, |
| 299 | struct cifs_sb_info *); |
Pavel Shilovsky | ed6875e | 2012-09-18 16:20:25 -0700 | [diff] [blame] | 300 | /* unlink file */ |
| 301 | int (*unlink)(const unsigned int, struct cifs_tcon *, const char *, |
| 302 | struct cifs_sb_info *); |
| 303 | /* open, rename and delete file */ |
| 304 | int (*rename_pending_delete)(const char *, struct dentry *, |
| 305 | const unsigned int); |
Pavel Shilovsky | 8ceb984 | 2012-09-18 16:20:30 -0700 | [diff] [blame] | 306 | /* send rename request */ |
| 307 | int (*rename)(const unsigned int, struct cifs_tcon *, const char *, |
| 308 | const char *, struct cifs_sb_info *); |
Steve French | d6e906f | 2012-09-18 16:20:31 -0700 | [diff] [blame] | 309 | /* send create hardlink request */ |
| 310 | int (*create_hardlink)(const unsigned int, struct cifs_tcon *, |
| 311 | const char *, const char *, |
| 312 | struct cifs_sb_info *); |
Pavel Shilovsky | b42bf88 | 2013-08-14 19:25:21 +0400 | [diff] [blame] | 313 | /* query symlink target */ |
| 314 | int (*query_symlink)(const unsigned int, struct cifs_tcon *, |
| 315 | const char *, char **, struct cifs_sb_info *); |
Pavel Shilovsky | fb1214e | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 316 | /* open a file for non-posix mounts */ |
Pavel Shilovsky | 226730b | 2013-07-05 12:00:30 +0400 | [diff] [blame] | 317 | int (*open)(const unsigned int, struct cifs_open_parms *, |
| 318 | __u32 *, FILE_ALL_INFO *); |
Pavel Shilovsky | fb1214e | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 319 | /* set fid protocol-specific info */ |
| 320 | void (*set_fid)(struct cifsFileInfo *, struct cifs_fid *, __u32); |
Pavel Shilovsky | 0ff78a2 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 321 | /* close a file */ |
Pavel Shilovsky | 760ad0c | 2012-09-25 11:00:07 +0400 | [diff] [blame] | 322 | void (*close)(const unsigned int, struct cifs_tcon *, |
| 323 | struct cifs_fid *); |
Pavel Shilovsky | 1d8c4c0 | 2012-09-18 16:20:27 -0700 | [diff] [blame] | 324 | /* send a flush request to the server */ |
| 325 | int (*flush)(const unsigned int, struct cifs_tcon *, struct cifs_fid *); |
Pavel Shilovsky | fc9c596 | 2012-09-18 16:20:28 -0700 | [diff] [blame] | 326 | /* async read from the server */ |
| 327 | int (*async_readv)(struct cifs_readdata *); |
Pavel Shilovsky | c9de5c8 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 328 | /* async write to the server */ |
Steve French | 4a5c80d | 2014-02-07 20:45:12 -0600 | [diff] [blame] | 329 | int (*async_writev)(struct cifs_writedata *, |
| 330 | void (*release)(struct kref *)); |
Pavel Shilovsky | f9c6e23 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 331 | /* sync read from the server */ |
Steve French | db8b631 | 2014-09-22 05:13:55 -0500 | [diff] [blame] | 332 | int (*sync_read)(const unsigned int, struct cifs_fid *, |
Pavel Shilovsky | f9c6e23 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 333 | struct cifs_io_parms *, unsigned int *, char **, |
| 334 | int *); |
Pavel Shilovsky | ba9ad725 | 2012-09-18 16:20:30 -0700 | [diff] [blame] | 335 | /* sync write to the server */ |
Steve French | db8b631 | 2014-09-22 05:13:55 -0500 | [diff] [blame] | 336 | int (*sync_write)(const unsigned int, struct cifs_fid *, |
Pavel Shilovsky | ba9ad725 | 2012-09-18 16:20:30 -0700 | [diff] [blame] | 337 | struct cifs_io_parms *, unsigned int *, struct kvec *, |
| 338 | unsigned long); |
Pavel Shilovsky | 92fc65a | 2012-09-18 16:20:32 -0700 | [diff] [blame] | 339 | /* open dir, start readdir */ |
| 340 | int (*query_dir_first)(const unsigned int, struct cifs_tcon *, |
| 341 | const char *, struct cifs_sb_info *, |
| 342 | struct cifs_fid *, __u16, |
| 343 | struct cifs_search_info *); |
| 344 | /* continue readdir */ |
| 345 | int (*query_dir_next)(const unsigned int, struct cifs_tcon *, |
| 346 | struct cifs_fid *, |
| 347 | __u16, struct cifs_search_info *srch_inf); |
| 348 | /* close dir */ |
| 349 | int (*close_dir)(const unsigned int, struct cifs_tcon *, |
| 350 | struct cifs_fid *); |
| 351 | /* calculate a size of SMB message */ |
| 352 | unsigned int (*calc_smb_size)(void *); |
Pavel Shilovsky | 2e44b28 | 2012-09-18 16:20:33 -0700 | [diff] [blame] | 353 | /* check for STATUS_PENDING and process it in a positive case */ |
| 354 | bool (*is_status_pending)(char *, struct TCP_Server_Info *, int); |
Pavel Shilovsky | 95a3f2f | 2012-09-18 16:20:33 -0700 | [diff] [blame] | 355 | /* send oplock break response */ |
| 356 | int (*oplock_response)(struct cifs_tcon *, struct cifs_fid *, |
| 357 | struct cifsInodeInfo *); |
Pavel Shilovsky | 76ec5e3 | 2012-09-18 16:20:33 -0700 | [diff] [blame] | 358 | /* query remote filesystem */ |
| 359 | int (*queryfs)(const unsigned int, struct cifs_tcon *, |
| 360 | struct kstatfs *); |
Pavel Shilovsky | d39a4f7 | 2012-09-19 06:22:43 -0700 | [diff] [blame] | 361 | /* send mandatory brlock to the server */ |
| 362 | int (*mand_lock)(const unsigned int, struct cifsFileInfo *, __u64, |
| 363 | __u64, __u32, int, int, bool); |
| 364 | /* unlock range of mandatory locks */ |
| 365 | int (*mand_unlock_range)(struct cifsFileInfo *, struct file_lock *, |
| 366 | const unsigned int); |
| 367 | /* push brlocks from the cache to the server */ |
| 368 | int (*push_mand_locks)(struct cifsFileInfo *); |
Pavel Shilovsky | b8c32db | 2012-09-19 06:22:44 -0700 | [diff] [blame] | 369 | /* get lease key of the inode */ |
Pavel Shilovsky | a41a28b | 2013-09-04 13:07:41 +0400 | [diff] [blame] | 370 | void (*get_lease_key)(struct inode *, struct cifs_fid *); |
Pavel Shilovsky | b8c32db | 2012-09-19 06:22:44 -0700 | [diff] [blame] | 371 | /* set lease key of the inode */ |
Pavel Shilovsky | a41a28b | 2013-09-04 13:07:41 +0400 | [diff] [blame] | 372 | void (*set_lease_key)(struct inode *, struct cifs_fid *); |
Pavel Shilovsky | b8c32db | 2012-09-19 06:22:44 -0700 | [diff] [blame] | 373 | /* generate new lease key */ |
Pavel Shilovsky | a41a28b | 2013-09-04 13:07:41 +0400 | [diff] [blame] | 374 | void (*new_lease_key)(struct cifs_fid *); |
Shirish Pargaonkar | 32811d2 | 2013-08-29 08:35:11 -0500 | [diff] [blame] | 375 | int (*generate_signingkey)(struct cifs_ses *); |
Pavel Shilovsky | 53ef101 | 2013-09-05 16:11:28 +0400 | [diff] [blame] | 376 | int (*calc_signature)(struct smb_rqst *, struct TCP_Server_Info *); |
Steve French | b3152e2 | 2015-06-24 03:17:02 -0500 | [diff] [blame] | 377 | int (*set_integrity)(const unsigned int, struct cifs_tcon *tcon, |
| 378 | struct cifsFileInfo *src_file); |
Sachin Prabhu | b5be1a1 | 2013-11-25 17:09:49 +0000 | [diff] [blame] | 379 | int (*query_mf_symlink)(unsigned int, struct cifs_tcon *, |
| 380 | struct cifs_sb_info *, const unsigned char *, |
| 381 | char *, unsigned int *); |
Sachin Prabhu | cbb0aba | 2013-11-25 17:09:52 +0000 | [diff] [blame] | 382 | int (*create_mf_symlink)(unsigned int, struct cifs_tcon *, |
| 383 | struct cifs_sb_info *, const unsigned char *, |
| 384 | char *, unsigned int *); |
Pavel Shilovsky | 53ef101 | 2013-09-05 16:11:28 +0400 | [diff] [blame] | 385 | /* if we can do cache read operations */ |
| 386 | bool (*is_read_op)(__u32); |
| 387 | /* set oplock level for the inode */ |
Pavel Shilovsky | 42873b0 | 2013-09-05 21:30:16 +0400 | [diff] [blame] | 388 | void (*set_oplock_level)(struct cifsInodeInfo *, __u32, unsigned int, |
| 389 | bool *); |
Pavel Shilovsky | a41a28b | 2013-09-04 13:07:41 +0400 | [diff] [blame] | 390 | /* create lease context buffer for CREATE request */ |
| 391 | char * (*create_lease_buf)(u8 *, u8); |
Pavel Shilovsky | 42873b0 | 2013-09-05 21:30:16 +0400 | [diff] [blame] | 392 | /* parse lease context buffer and return oplock/epoch info */ |
| 393 | __u8 (*parse_lease_buf)(void *, unsigned int *); |
Steve French | 41c1358 | 2013-11-14 00:05:36 -0600 | [diff] [blame] | 394 | int (*clone_range)(const unsigned int, struct cifsFileInfo *src_file, |
| 395 | struct cifsFileInfo *target_file, u64 src_off, u64 len, |
| 396 | u64 dest_off); |
Steve French | 02b1666 | 2015-06-27 21:18:36 -0700 | [diff] [blame] | 397 | int (*duplicate_extents)(const unsigned int, struct cifsFileInfo *src, |
| 398 | struct cifsFileInfo *target_file, u64 src_off, u64 len, |
| 399 | u64 dest_off); |
Steve French | ff1c038 | 2013-11-19 23:44:46 -0600 | [diff] [blame] | 400 | int (*validate_negotiate)(const unsigned int, struct cifs_tcon *); |
Steve French | 666753c | 2014-01-26 23:53:43 -0600 | [diff] [blame] | 401 | ssize_t (*query_all_EAs)(const unsigned int, struct cifs_tcon *, |
| 402 | const unsigned char *, const unsigned char *, char *, |
| 403 | size_t, const struct nls_table *, int); |
| 404 | int (*set_EA)(const unsigned int, struct cifs_tcon *, const char *, |
| 405 | const char *, const void *, const __u16, |
| 406 | const struct nls_table *, int); |
Steve French | 83e3bc2 | 2014-02-02 23:31:47 -0600 | [diff] [blame] | 407 | struct cifs_ntsd * (*get_acl)(struct cifs_sb_info *, struct inode *, |
| 408 | const char *, u32 *); |
Steve French | 42eacf9 | 2014-02-10 14:08:16 -0600 | [diff] [blame] | 409 | struct cifs_ntsd * (*get_acl_by_fid)(struct cifs_sb_info *, |
| 410 | const struct cifs_fid *, u32 *); |
Steve French | 83e3bc2 | 2014-02-02 23:31:47 -0600 | [diff] [blame] | 411 | int (*set_acl)(struct cifs_ntsd *, __u32, struct inode *, const char *, |
| 412 | int); |
Pavel Shilovsky | 7f6c500 | 2014-06-22 11:03:22 +0400 | [diff] [blame] | 413 | /* writepages retry size */ |
| 414 | unsigned int (*wp_retry_size)(struct inode *); |
Pavel Shilovsky | cb7e9ea | 2014-06-05 19:03:27 +0400 | [diff] [blame] | 415 | /* get mtu credits */ |
| 416 | int (*wait_mtu_credits)(struct TCP_Server_Info *, unsigned int, |
| 417 | unsigned int *, unsigned int *); |
Pavel Shilovsky | 5275580 | 2014-08-18 20:49:57 +0400 | [diff] [blame] | 418 | /* check if we need to issue closedir */ |
| 419 | bool (*dir_needs_close)(struct cifsFileInfo *); |
Steve French | 31742c5 | 2014-08-17 08:38:47 -0500 | [diff] [blame] | 420 | long (*fallocate)(struct file *, struct cifs_tcon *, int, loff_t, |
| 421 | loff_t); |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 422 | }; |
| 423 | |
| 424 | struct smb_version_values { |
| 425 | char *version_string; |
Steve French | e4aa25e | 2012-10-01 12:26:22 -0500 | [diff] [blame] | 426 | __u16 protocol_id; |
| 427 | __u32 req_capabilities; |
Pavel Shilovsky | 106dc53 | 2012-02-28 14:23:34 +0300 | [diff] [blame] | 428 | __u32 large_lock_type; |
| 429 | __u32 exclusive_lock_type; |
| 430 | __u32 shared_lock_type; |
| 431 | __u32 unlock_lock_type; |
Pavel Shilovsky | 1887f60 | 2012-05-17 12:45:31 +0400 | [diff] [blame] | 432 | size_t header_size; |
| 433 | size_t max_header_size; |
Pavel Shilovsky | eb37871 | 2012-05-17 13:02:51 +0400 | [diff] [blame] | 434 | size_t read_rsp_size; |
Pavel Shilovsky | 2dc7e1c | 2011-12-26 22:53:34 +0400 | [diff] [blame] | 435 | __le16 lock_cmd; |
Pavel Shilovsky | 29e20f9 | 2012-07-13 13:58:14 +0400 | [diff] [blame] | 436 | unsigned int cap_unix; |
| 437 | unsigned int cap_nt_find; |
| 438 | unsigned int cap_large_files; |
Jeff Layton | 5028588 | 2013-06-27 12:45:00 -0400 | [diff] [blame] | 439 | __u16 signing_enabled; |
| 440 | __u16 signing_required; |
Pavel Shilovsky | a41a28b | 2013-09-04 13:07:41 +0400 | [diff] [blame] | 441 | size_t create_lease_size; |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 442 | }; |
| 443 | |
Pavel Shilovsky | 1887f60 | 2012-05-17 12:45:31 +0400 | [diff] [blame] | 444 | #define HEADER_SIZE(server) (server->vals->header_size) |
| 445 | #define MAX_HEADER_SIZE(server) (server->vals->max_header_size) |
| 446 | |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 447 | struct smb_vol { |
| 448 | char *username; |
| 449 | char *password; |
| 450 | char *domainname; |
| 451 | char *UNC; |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 452 | char *iocharset; /* local code page for mapping to and from Unicode */ |
| 453 | char source_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* clnt nb name */ |
| 454 | char target_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* srvr nb name */ |
Eric W. Biederman | 3da4656 | 2013-02-06 01:37:39 -0800 | [diff] [blame] | 455 | kuid_t cred_uid; |
| 456 | kuid_t linux_uid; |
| 457 | kgid_t linux_gid; |
| 458 | kuid_t backupuid; |
| 459 | kgid_t backupgid; |
Al Viro | 5206efd | 2011-07-26 03:22:14 -0400 | [diff] [blame] | 460 | umode_t file_mode; |
| 461 | umode_t dir_mode; |
Jeff Layton | 1e3cc57 | 2013-06-10 17:12:23 -0500 | [diff] [blame] | 462 | enum securityEnum sectype; /* sectype requested via mnt opts */ |
| 463 | bool sign; /* was signing requested via mnt opts? */ |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 464 | bool retry:1; |
| 465 | bool intr:1; |
| 466 | bool setuids:1; |
| 467 | bool override_uid:1; |
| 468 | bool override_gid:1; |
| 469 | bool dynperm:1; |
| 470 | bool noperm:1; |
| 471 | bool no_psx_acl:1; /* set if posix acl support should be disabled */ |
| 472 | bool cifs_acl:1; |
Shirish Pargaonkar | 3d3ea8e | 2011-09-26 09:56:44 -0500 | [diff] [blame] | 473 | bool backupuid_specified; /* mount option backupuid is specified */ |
| 474 | bool backupgid_specified; /* mount option backupgid is specified */ |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 475 | bool no_xattr:1; /* set if xattr (EA) support should be disabled*/ |
| 476 | bool server_ino:1; /* use inode numbers from server ie UniqueId */ |
| 477 | bool direct_io:1; |
| 478 | bool strict_io:1; /* strict cache behavior */ |
| 479 | bool remap:1; /* set to remap seven reserved chars in filenames */ |
Steve French | 2baa268 | 2014-09-27 02:19:01 -0500 | [diff] [blame] | 480 | bool sfu_remap:1; /* remap seven reserved chars ala SFU */ |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 481 | bool posix_paths:1; /* unset to not ask for posix pathnames. */ |
| 482 | bool no_linux_ext:1; |
| 483 | bool sfu_emul:1; |
| 484 | bool nullauth:1; /* attempt to authenticate with null user */ |
| 485 | bool nocase:1; /* request case insensitive filenames */ |
| 486 | bool nobrl:1; /* disable sending byte range locks to srv */ |
| 487 | bool mand_lock:1; /* send mandatory not posix byte range lock reqs */ |
| 488 | bool seal:1; /* request transport encryption on share */ |
| 489 | bool nodfs:1; /* Do not request DFS, even if available */ |
| 490 | bool local_lease:1; /* check leases only on local system, not remote */ |
| 491 | bool noblocksnd:1; |
| 492 | bool noautotune:1; |
| 493 | bool nostrictsync:1; /* do not force expensive SMBflush on every sync */ |
| 494 | bool fsc:1; /* enable fscache */ |
| 495 | bool mfsymlinks:1; /* use Minshall+French Symlinks */ |
| 496 | bool multiuser:1; |
Pavel Shilovsky | d4ffff1 | 2011-05-26 06:02:00 +0000 | [diff] [blame] | 497 | bool rwpidforward:1; /* pid forward for read/write operations */ |
Steve French | b2a3077 | 2015-09-29 21:49:28 -0500 | [diff] [blame] | 498 | bool nosharesock:1; |
| 499 | bool persistent:1; |
| 500 | bool nopersistent:1; |
Steve French | 592fafe | 2015-11-03 10:08:53 -0600 | [diff] [blame] | 501 | bool resilient:1; /* noresilient not required since not fored for CA */ |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 502 | unsigned int rsize; |
| 503 | unsigned int wsize; |
| 504 | bool sockopt_tcp_nodelay:1; |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 505 | unsigned long actimeo; /* attribute cache timeout (jiffies) */ |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 506 | struct smb_version_operations *ops; |
| 507 | struct smb_version_values *vals; |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 508 | char *prepath; |
Jeff Layton | b979aaa | 2012-11-26 11:09:55 -0500 | [diff] [blame] | 509 | struct sockaddr_storage dstaddr; /* destination address */ |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 510 | struct sockaddr_storage srcaddr; /* allow binding to a local IP */ |
| 511 | struct nls_table *local_nls; |
Steve French | adfeb3e | 2015-12-18 12:31:36 -0600 | [diff] [blame] | 512 | unsigned int echo_interval; /* echo interval in secs */ |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 513 | }; |
| 514 | |
Pavel Shilovsky | 25c7f41 | 2011-05-26 23:35:47 +0400 | [diff] [blame] | 515 | #define CIFS_MOUNT_MASK (CIFS_MOUNT_NO_PERM | CIFS_MOUNT_SET_UID | \ |
| 516 | CIFS_MOUNT_SERVER_INUM | CIFS_MOUNT_DIRECT_IO | \ |
| 517 | CIFS_MOUNT_NO_XATTR | CIFS_MOUNT_MAP_SPECIAL_CHR | \ |
Steve French | 2baa268 | 2014-09-27 02:19:01 -0500 | [diff] [blame] | 518 | CIFS_MOUNT_MAP_SFM_CHR | \ |
Pavel Shilovsky | 25c7f41 | 2011-05-26 23:35:47 +0400 | [diff] [blame] | 519 | CIFS_MOUNT_UNX_EMUL | CIFS_MOUNT_NO_BRL | \ |
| 520 | CIFS_MOUNT_CIFS_ACL | CIFS_MOUNT_OVERR_UID | \ |
| 521 | CIFS_MOUNT_OVERR_GID | CIFS_MOUNT_DYNPERM | \ |
| 522 | CIFS_MOUNT_NOPOSIXBRL | CIFS_MOUNT_NOSSYNC | \ |
| 523 | CIFS_MOUNT_FSCACHE | CIFS_MOUNT_MF_SYMLINKS | \ |
Shirish Pargaonkar | 3d3ea8e | 2011-09-26 09:56:44 -0500 | [diff] [blame] | 524 | CIFS_MOUNT_MULTIUSER | CIFS_MOUNT_STRICT_IO | \ |
| 525 | CIFS_MOUNT_CIFS_BACKUPUID | CIFS_MOUNT_CIFS_BACKUPGID) |
Pavel Shilovsky | 25c7f41 | 2011-05-26 23:35:47 +0400 | [diff] [blame] | 526 | |
| 527 | #define CIFS_MS_MASK (MS_RDONLY | MS_MANDLOCK | MS_NOEXEC | MS_NOSUID | \ |
| 528 | MS_NODEV | MS_SYNCHRONOUS) |
| 529 | |
| 530 | struct cifs_mnt_data { |
| 531 | struct cifs_sb_info *cifs_sb; |
| 532 | struct smb_vol *vol; |
| 533 | int flags; |
| 534 | }; |
| 535 | |
Pavel Shilovsky | 792af7b | 2012-03-23 14:28:02 -0400 | [diff] [blame] | 536 | static inline unsigned int |
| 537 | get_rfc1002_length(void *buf) |
| 538 | { |
Jeff Layton | dca1c8d | 2014-02-22 19:35:38 -0500 | [diff] [blame] | 539 | return be32_to_cpu(*((__be32 *)buf)) & 0xffffff; |
Pavel Shilovsky | 792af7b | 2012-03-23 14:28:02 -0400 | [diff] [blame] | 540 | } |
| 541 | |
Pavel Shilovsky | ec2e452 | 2011-12-27 16:12:43 +0400 | [diff] [blame] | 542 | static inline void |
| 543 | inc_rfc1001_len(void *buf, int count) |
| 544 | { |
| 545 | be32_add_cpu((__be32 *)buf, count); |
| 546 | } |
| 547 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | struct TCP_Server_Info { |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 549 | struct list_head tcp_ses_list; |
| 550 | struct list_head smb_ses_list; |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 551 | int srv_count; /* reference counter */ |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 552 | /* 15 character server name + 0x20 16th byte indicating type = srv */ |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 553 | char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 554 | struct smb_version_operations *ops; |
| 555 | struct smb_version_values *vals; |
Jeff Layton | c3dccf4 | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 556 | enum statusEnum tcpStatus; /* what we think the status is */ |
Jeff Layton | c359cf3 | 2007-11-16 22:22:06 +0000 | [diff] [blame] | 557 | char *hostname; /* hostname portion of UNC string */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 558 | struct socket *ssocket; |
Pavel Shilovsky | a9f1b85 | 2010-12-13 19:08:35 +0300 | [diff] [blame] | 559 | struct sockaddr_storage dstaddr; |
Ben Greear | 3eb9a88 | 2010-09-01 17:06:02 -0700 | [diff] [blame] | 560 | struct sockaddr_storage srcaddr; /* locally bind to this IP */ |
Rob Landley | f1d0c99 | 2011-01-22 15:44:05 -0600 | [diff] [blame] | 561 | #ifdef CONFIG_NET_NS |
| 562 | struct net *net; |
| 563 | #endif |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 564 | wait_queue_head_t response_q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 565 | wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/ |
| 566 | struct list_head pending_mid_q; |
Steve French | edf1ae4 | 2008-10-29 00:47:57 +0000 | [diff] [blame] | 567 | bool noblocksnd; /* use blocking sendmsg */ |
| 568 | bool noautotune; /* do not autotune send buf sizes */ |
Steve French | 6a5fa236 | 2010-01-01 01:28:43 +0000 | [diff] [blame] | 569 | bool tcp_nodelay; |
Pavel Shilovsky | 2d86dbc | 2012-02-06 15:59:18 +0400 | [diff] [blame] | 570 | int credits; /* send no more requests at once */ |
Pavel Shilovsky | fc40f9c | 2012-02-17 17:09:12 +0300 | [diff] [blame] | 571 | unsigned int in_flight; /* number of requests on the wire to server */ |
Pavel Shilovsky | 2d86dbc | 2012-02-06 15:59:18 +0400 | [diff] [blame] | 572 | spinlock_t req_lock; /* protect the two values above */ |
Jeff Layton | 72ca545 | 2008-12-01 07:09:36 -0500 | [diff] [blame] | 573 | struct mutex srv_mutex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 574 | struct task_struct *tsk; |
| 575 | char server_GUID[16]; |
Pavel Shilovsky | 286170a | 2012-05-25 10:43:58 +0400 | [diff] [blame] | 576 | __u16 sec_mode; |
Jeff Layton | 38d77c5 | 2013-05-26 07:01:00 -0400 | [diff] [blame] | 577 | bool sign; /* is signing enabled on this connection? */ |
Jeff Layton | c3dccf4 | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 578 | bool session_estab; /* mark when very first sess is established */ |
Pavel Shilovsky | 28ea529 | 2012-05-23 16:18:00 +0400 | [diff] [blame] | 579 | #ifdef CONFIG_CIFS_SMB2 |
| 580 | int echo_credits; /* echo reserved slots */ |
| 581 | int oplock_credits; /* oplock break reserved slots */ |
| 582 | bool echoes:1; /* enable echoes */ |
Sachin Prabhu | 39552ea | 2014-05-13 00:48:12 +0100 | [diff] [blame] | 583 | __u8 client_guid[SMB2_CLIENT_GUID_SIZE]; /* Client GUID */ |
Pavel Shilovsky | 28ea529 | 2012-05-23 16:18:00 +0400 | [diff] [blame] | 584 | #endif |
Jeff Layton | c3dccf4 | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 585 | u16 dialect; /* dialect index that server chose */ |
Pavel Shilovsky | 10b9b98 | 2012-03-20 12:55:09 +0300 | [diff] [blame] | 586 | bool oplocks:1; /* enable oplocks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | unsigned int maxReq; /* Clients should submit no more */ |
| 588 | /* than maxReq distinct unanswered SMBs to the server when using */ |
| 589 | /* multiplexed reads or writes */ |
| 590 | unsigned int maxBuf; /* maxBuf specifies the maximum */ |
| 591 | /* message size the server can send or receive for non-raw SMBs */ |
Steve French | 7e90d70 | 2011-02-08 23:52:32 +0000 | [diff] [blame] | 592 | /* maxBuf is returned by SMB NegotiateProtocol so maxBuf is only 0 */ |
| 593 | /* when socket is setup (and during reconnect) before NegProt sent */ |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 594 | unsigned int max_rw; /* maxRw specifies the maximum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 595 | /* message size the server can send or receive for */ |
| 596 | /* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */ |
Pavel Shilovsky | 29e20f9 | 2012-07-13 13:58:14 +0400 | [diff] [blame] | 597 | unsigned int capabilities; /* selective disabling of caps by smb sess */ |
Steve French | de7ed55 | 2006-09-30 13:25:52 +0000 | [diff] [blame] | 598 | int timeAdj; /* Adjust for difference in server time zone in sec */ |
Pavel Shilovsky | 243d04b | 2012-03-23 14:28:03 -0400 | [diff] [blame] | 599 | __u64 CurrentMid; /* multiplex id - rotating counter */ |
Shirish Pargaonkar | d3ba50b | 2010-10-27 15:20:36 -0500 | [diff] [blame] | 600 | char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */ |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 601 | /* 16th byte of RFC1001 workstation name is always null */ |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 602 | char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; |
Jeff Layton | a0f8b4f | 2011-01-07 11:30:28 -0500 | [diff] [blame] | 603 | __u32 sequence_number; /* for signing, protected by srv_mutex */ |
Shirish Pargaonkar | 5f98ca9 | 2010-09-18 22:01:58 -0500 | [diff] [blame] | 604 | struct session_key session_key; |
Steve French | 3a5ff61 | 2006-07-14 22:37:11 +0000 | [diff] [blame] | 605 | unsigned long lstrp; /* when we got last response from this server */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 606 | struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */ |
Jeff Layton | e598d1d8 | 2013-05-26 07:00:59 -0400 | [diff] [blame] | 607 | #define CIFS_NEGFLAVOR_LANMAN 0 /* wct == 13, LANMAN */ |
| 608 | #define CIFS_NEGFLAVOR_UNENCAP 1 /* wct == 17, but no ext_sec */ |
| 609 | #define CIFS_NEGFLAVOR_EXTENDED 2 /* wct == 17, ext_sec bit set */ |
| 610 | char negflavor; /* NEGOTIATE response flavor */ |
Jeff Layton | 26efa0b | 2010-04-24 07:57:49 -0400 | [diff] [blame] | 611 | /* extended security flavors that server supports */ |
Jeff Layton | c3dccf4 | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 612 | bool sec_ntlmssp; /* supports NTLMSSP */ |
| 613 | bool sec_kerberosu2u; /* supports U2U Kerberos */ |
Jeff Layton | 26efa0b | 2010-04-24 07:57:49 -0400 | [diff] [blame] | 614 | bool sec_kerberos; /* supports plain Kerberos */ |
| 615 | bool sec_mskerberos; /* supports legacy MS Kerberos */ |
Jeff Layton | 2a37ef9 | 2011-10-19 15:29:23 -0400 | [diff] [blame] | 616 | bool large_buf; /* is current buffer large? */ |
Jeff Layton | c74093b | 2011-01-11 07:24:23 -0500 | [diff] [blame] | 617 | struct delayed_work echo; /* echo ping workqueue job */ |
Jeff Layton | 2a37ef9 | 2011-10-19 15:29:23 -0400 | [diff] [blame] | 618 | char *smallbuf; /* pointer to current "small" buffer */ |
| 619 | char *bigbuf; /* pointer to current "big" buffer */ |
| 620 | unsigned int total_read; /* total amount of data read in this pass */ |
Suresh Jayaraman | 488f1d2d | 2010-07-05 18:12:15 +0530 | [diff] [blame] | 621 | #ifdef CONFIG_CIFS_FSCACHE |
| 622 | struct fscache_cookie *fscache; /* client index cache cookie */ |
| 623 | #endif |
Jeff Layton | c3dccf4 | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 624 | #ifdef CONFIG_CIFS_STATS2 |
Steve French | 789e666 | 2011-08-09 18:44:44 +0000 | [diff] [blame] | 625 | atomic_t in_send; /* requests trying to send */ |
Jeff Layton | c3dccf4 | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 626 | atomic_t num_waiters; /* blocked waiting to get in sendrecv */ |
| 627 | #endif |
Pavel Shilovsky | ec2e452 | 2011-12-27 16:12:43 +0400 | [diff] [blame] | 628 | #ifdef CONFIG_CIFS_SMB2 |
| 629 | unsigned int max_read; |
| 630 | unsigned int max_write; |
Steve French | 373512e | 2015-12-18 13:05:30 -0600 | [diff] [blame] | 631 | __u8 preauth_hash[512]; |
Pavel Shilovsky | ec2e452 | 2011-12-27 16:12:43 +0400 | [diff] [blame] | 632 | #endif /* CONFIG_CIFS_SMB2 */ |
Steve French | adfeb3e | 2015-12-18 12:31:36 -0600 | [diff] [blame] | 633 | unsigned long echo_interval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 634 | }; |
| 635 | |
Pavel Shilovsky | fc40f9c | 2012-02-17 17:09:12 +0300 | [diff] [blame] | 636 | static inline unsigned int |
| 637 | in_flight(struct TCP_Server_Info *server) |
| 638 | { |
| 639 | unsigned int num; |
| 640 | spin_lock(&server->req_lock); |
| 641 | num = server->in_flight; |
| 642 | spin_unlock(&server->req_lock); |
| 643 | return num; |
| 644 | } |
| 645 | |
Pavel Shilovsky | 2d86dbc | 2012-02-06 15:59:18 +0400 | [diff] [blame] | 646 | static inline bool |
Pavel Shilovsky | bc205ed | 2012-03-15 13:22:27 +0300 | [diff] [blame] | 647 | has_credits(struct TCP_Server_Info *server, int *credits) |
Pavel Shilovsky | fc40f9c | 2012-02-17 17:09:12 +0300 | [diff] [blame] | 648 | { |
Pavel Shilovsky | 2d86dbc | 2012-02-06 15:59:18 +0400 | [diff] [blame] | 649 | int num; |
Pavel Shilovsky | fc40f9c | 2012-02-17 17:09:12 +0300 | [diff] [blame] | 650 | spin_lock(&server->req_lock); |
Pavel Shilovsky | bc205ed | 2012-03-15 13:22:27 +0300 | [diff] [blame] | 651 | num = *credits; |
Pavel Shilovsky | fc40f9c | 2012-02-17 17:09:12 +0300 | [diff] [blame] | 652 | spin_unlock(&server->req_lock); |
Pavel Shilovsky | 2d86dbc | 2012-02-06 15:59:18 +0400 | [diff] [blame] | 653 | return num > 0; |
Pavel Shilovsky | fc40f9c | 2012-02-17 17:09:12 +0300 | [diff] [blame] | 654 | } |
| 655 | |
Pavel Shilovsky | 4527578 | 2012-05-17 17:53:29 +0400 | [diff] [blame] | 656 | static inline void |
Pavel Shilovsky | a891f0f | 2012-05-23 16:14:34 +0400 | [diff] [blame] | 657 | add_credits(struct TCP_Server_Info *server, const unsigned int add, |
| 658 | const int optype) |
Pavel Shilovsky | 4527578 | 2012-05-17 17:53:29 +0400 | [diff] [blame] | 659 | { |
Pavel Shilovsky | a891f0f | 2012-05-23 16:14:34 +0400 | [diff] [blame] | 660 | server->ops->add_credits(server, add, optype); |
Pavel Shilovsky | 4527578 | 2012-05-17 17:53:29 +0400 | [diff] [blame] | 661 | } |
| 662 | |
| 663 | static inline void |
Pavel Shilovsky | cb7e9ea | 2014-06-05 19:03:27 +0400 | [diff] [blame] | 664 | add_credits_and_wake_if(struct TCP_Server_Info *server, const unsigned int add, |
| 665 | const int optype) |
| 666 | { |
| 667 | if (add) { |
| 668 | server->ops->add_credits(server, add, optype); |
| 669 | wake_up(&server->request_q); |
| 670 | } |
| 671 | } |
| 672 | |
| 673 | static inline void |
Pavel Shilovsky | 4527578 | 2012-05-17 17:53:29 +0400 | [diff] [blame] | 674 | set_credits(struct TCP_Server_Info *server, const int val) |
| 675 | { |
| 676 | server->ops->set_credits(server, val); |
| 677 | } |
| 678 | |
Sachin Prabhu | 9235d09 | 2014-12-09 17:37:00 +0000 | [diff] [blame] | 679 | static inline __le64 |
Tim Gardner | 3d378d3 | 2013-11-02 12:50:34 -0500 | [diff] [blame] | 680 | get_next_mid64(struct TCP_Server_Info *server) |
Pavel Shilovsky | 8825736 | 2012-05-23 14:01:59 +0400 | [diff] [blame] | 681 | { |
Sachin Prabhu | 9235d09 | 2014-12-09 17:37:00 +0000 | [diff] [blame] | 682 | return cpu_to_le64(server->ops->get_next_mid(server)); |
Pavel Shilovsky | 8825736 | 2012-05-23 14:01:59 +0400 | [diff] [blame] | 683 | } |
| 684 | |
Tim Gardner | 3d378d3 | 2013-11-02 12:50:34 -0500 | [diff] [blame] | 685 | static inline __le16 |
| 686 | get_next_mid(struct TCP_Server_Info *server) |
| 687 | { |
Sachin Prabhu | 9235d09 | 2014-12-09 17:37:00 +0000 | [diff] [blame] | 688 | __u16 mid = server->ops->get_next_mid(server); |
Tim Gardner | 3d378d3 | 2013-11-02 12:50:34 -0500 | [diff] [blame] | 689 | /* |
| 690 | * The value in the SMB header should be little endian for easy |
| 691 | * on-the-wire decoding. |
| 692 | */ |
| 693 | return cpu_to_le16(mid); |
| 694 | } |
| 695 | |
| 696 | static inline __u16 |
| 697 | get_mid(const struct smb_hdr *smb) |
| 698 | { |
| 699 | return le16_to_cpu(smb->Mid); |
| 700 | } |
| 701 | |
| 702 | static inline bool |
| 703 | compare_mid(__u16 mid, const struct smb_hdr *smb) |
| 704 | { |
| 705 | return mid == le16_to_cpu(smb->Mid); |
| 706 | } |
| 707 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | /* |
Pavel Shilovsky | 24985c5 | 2012-09-18 16:20:28 -0700 | [diff] [blame] | 709 | * When the server supports very large reads and writes via POSIX extensions, |
| 710 | * we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not |
| 711 | * including the RFC1001 length. |
| 712 | * |
| 713 | * Note that this might make for "interesting" allocation problems during |
| 714 | * writeback however as we have to allocate an array of pointers for the |
Kirill A. Shutemov | ea1754a | 2016-04-01 15:29:48 +0300 | [diff] [blame] | 715 | * pages. A 16M write means ~32kb page array with PAGE_SIZE == 4096. |
Pavel Shilovsky | 24985c5 | 2012-09-18 16:20:28 -0700 | [diff] [blame] | 716 | * |
| 717 | * For reads, there is a similar problem as we need to allocate an array |
| 718 | * of kvecs to handle the receive, though that should only need to be done |
| 719 | * once. |
| 720 | */ |
| 721 | #define CIFS_MAX_WSIZE ((1<<24) - 1 - sizeof(WRITE_REQ) + 4) |
| 722 | #define CIFS_MAX_RSIZE ((1<<24) - sizeof(READ_RSP) + 4) |
| 723 | |
| 724 | /* |
| 725 | * When the server doesn't allow large posix writes, only allow a rsize/wsize |
| 726 | * of 2^17-1 minus the size of the call header. That allows for a read or |
| 727 | * write up to the maximum size described by RFC1002. |
| 728 | */ |
| 729 | #define CIFS_MAX_RFC1002_WSIZE ((1<<17) - 1 - sizeof(WRITE_REQ) + 4) |
| 730 | #define CIFS_MAX_RFC1002_RSIZE ((1<<17) - 1 - sizeof(READ_RSP) + 4) |
| 731 | |
| 732 | /* |
| 733 | * The default wsize is 1M. find_get_pages seems to return a maximum of 256 |
Kirill A. Shutemov | ea1754a | 2016-04-01 15:29:48 +0300 | [diff] [blame] | 734 | * pages in a single call. With PAGE_SIZE == 4k, this means we can fill |
Pavel Shilovsky | 24985c5 | 2012-09-18 16:20:28 -0700 | [diff] [blame] | 735 | * a single wsize request with a single call. |
| 736 | */ |
| 737 | #define CIFS_DEFAULT_IOSIZE (1024 * 1024) |
| 738 | |
| 739 | /* |
| 740 | * Windows only supports a max of 60kb reads and 65535 byte writes. Default to |
| 741 | * those values when posix extensions aren't in force. In actuality here, we |
| 742 | * use 65536 to allow for a write that is a multiple of 4k. Most servers seem |
| 743 | * to be ok with the extra byte even though Windows doesn't send writes that |
| 744 | * are that large. |
| 745 | * |
| 746 | * Citation: |
| 747 | * |
| 748 | * http://blogs.msdn.com/b/openspecification/archive/2009/04/10/smb-maximum-transmit-buffer-size-and-performance-tuning.aspx |
| 749 | */ |
| 750 | #define CIFS_DEFAULT_NON_POSIX_RSIZE (60 * 1024) |
| 751 | #define CIFS_DEFAULT_NON_POSIX_WSIZE (65536) |
| 752 | |
| 753 | /* |
Rob Landley | f1d0c99 | 2011-01-22 15:44:05 -0600 | [diff] [blame] | 754 | * Macros to allow the TCP_Server_Info->net field and related code to drop out |
| 755 | * when CONFIG_NET_NS isn't set. |
| 756 | */ |
| 757 | |
| 758 | #ifdef CONFIG_NET_NS |
| 759 | |
| 760 | static inline struct net *cifs_net_ns(struct TCP_Server_Info *srv) |
| 761 | { |
| 762 | return srv->net; |
| 763 | } |
| 764 | |
| 765 | static inline void cifs_set_net_ns(struct TCP_Server_Info *srv, struct net *net) |
| 766 | { |
| 767 | srv->net = net; |
| 768 | } |
| 769 | |
| 770 | #else |
| 771 | |
| 772 | static inline struct net *cifs_net_ns(struct TCP_Server_Info *srv) |
| 773 | { |
| 774 | return &init_net; |
| 775 | } |
| 776 | |
| 777 | static inline void cifs_set_net_ns(struct TCP_Server_Info *srv, struct net *net) |
| 778 | { |
| 779 | } |
| 780 | |
| 781 | #endif |
| 782 | |
| 783 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | * Session structure. One of these for each uid session with a particular host |
| 785 | */ |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 786 | struct cifs_ses { |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 787 | struct list_head smb_ses_list; |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 788 | struct list_head tcon_list; |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 789 | struct mutex session_mutex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | struct TCP_Server_Info *server; /* pointer to server info */ |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 791 | int ses_count; /* reference counter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | enum statusEnum status; |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 793 | unsigned overrideSecFlg; /* if non-zero override global sec flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | __u16 ipc_tid; /* special tid for connection to IPC share */ |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 795 | char *serverOS; /* name of operating system underlying server */ |
| 796 | char *serverNOS; /* name of network operating system of server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | char *serverDomain; /* security realm of server */ |
Pavel Shilovsky | 286170a | 2012-05-25 10:43:58 +0400 | [diff] [blame] | 798 | __u64 Suid; /* remote smb uid */ |
Eric W. Biederman | 64ed39d | 2013-02-06 02:30:39 -0800 | [diff] [blame] | 799 | kuid_t linux_uid; /* overriding owner of files on the mount */ |
| 800 | kuid_t cred_uid; /* owner of credentials */ |
Pavel Shilovsky | 29e20f9 | 2012-07-13 13:58:14 +0400 | [diff] [blame] | 801 | unsigned int capabilities; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 802 | char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 803 | TCP names - will ipv6 and sctp addresses fit? */ |
Steve French | 34c8790 | 2011-03-01 05:02:57 +0000 | [diff] [blame] | 804 | char *user_name; /* must not be null except during init of sess |
| 805 | and after mount option parsing we fill it */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 806 | char *domainName; |
| 807 | char *password; |
Shirish Pargaonkar | 5d0d288 | 2010-10-13 18:15:00 -0500 | [diff] [blame] | 808 | struct session_key auth_key; |
Shirish Pargaonkar | d3686d5 | 2010-10-28 09:53:07 -0500 | [diff] [blame] | 809 | struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */ |
Jeff Layton | 28e11bd | 2013-05-26 07:01:00 -0400 | [diff] [blame] | 810 | enum securityEnum sectype; /* what security flavor was specified? */ |
| 811 | bool sign; /* is signing required? */ |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 812 | bool need_reconnect:1; /* connection reset, uid now invalid */ |
Pavel Shilovsky | 5478f9b | 2011-12-27 16:22:00 +0400 | [diff] [blame] | 813 | #ifdef CONFIG_CIFS_SMB2 |
| 814 | __u16 session_flags; |
Steve French | 373512e | 2015-12-18 13:05:30 -0600 | [diff] [blame] | 815 | __u8 smb3signingkey[SMB3_SIGN_KEY_SIZE]; |
| 816 | __u8 smb3encryptionkey[SMB3_SIGN_KEY_SIZE]; |
| 817 | __u8 smb3decryptionkey[SMB3_SIGN_KEY_SIZE]; |
| 818 | __u8 preauth_hash[512]; |
Pavel Shilovsky | 5478f9b | 2011-12-27 16:22:00 +0400 | [diff] [blame] | 819 | #endif /* CONFIG_CIFS_SMB2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | }; |
Pavel Shilovsky | 233839b | 2012-09-19 06:22:45 -0700 | [diff] [blame] | 821 | |
Pavel Shilovsky | 29e20f9 | 2012-07-13 13:58:14 +0400 | [diff] [blame] | 822 | static inline bool |
| 823 | cap_unix(struct cifs_ses *ses) |
| 824 | { |
| 825 | return ses->server->vals->cap_unix & ses->capabilities; |
| 826 | } |
| 827 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 828 | /* |
| 829 | * there is one of these for each connection to a resource on a particular |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 830 | * session |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 831 | */ |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 832 | struct cifs_tcon { |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 833 | struct list_head tcon_list; |
| 834 | int tc_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | struct list_head openFileList; |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 836 | struct cifs_ses *ses; /* pointer to session associated with */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 837 | char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 838 | char *nativeFileSystem; |
Jeff Layton | 00e485b | 2008-12-05 20:41:21 -0500 | [diff] [blame] | 839 | char *password; /* for share-level security */ |
Pavel Shilovsky | faaf946 | 2011-12-27 16:04:00 +0400 | [diff] [blame] | 840 | __u32 tid; /* The 4 byte tree id */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 841 | __u16 Flags; /* optional support bits */ |
| 842 | enum statusEnum tidStatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 843 | #ifdef CONFIG_CIFS_STATS |
| 844 | atomic_t num_smbs_sent; |
Pavel Shilovsky | 44c5818 | 2012-05-28 14:16:31 +0400 | [diff] [blame] | 845 | union { |
| 846 | struct { |
| 847 | atomic_t num_writes; |
| 848 | atomic_t num_reads; |
| 849 | atomic_t num_flushes; |
| 850 | atomic_t num_oplock_brks; |
| 851 | atomic_t num_opens; |
| 852 | atomic_t num_closes; |
| 853 | atomic_t num_deletes; |
| 854 | atomic_t num_mkdirs; |
| 855 | atomic_t num_posixopens; |
| 856 | atomic_t num_posixmkdirs; |
| 857 | atomic_t num_rmdirs; |
| 858 | atomic_t num_renames; |
| 859 | atomic_t num_t2renames; |
| 860 | atomic_t num_ffirst; |
| 861 | atomic_t num_fnext; |
| 862 | atomic_t num_fclose; |
| 863 | atomic_t num_hardlinks; |
| 864 | atomic_t num_symlinks; |
| 865 | atomic_t num_locks; |
| 866 | atomic_t num_acl_get; |
| 867 | atomic_t num_acl_set; |
| 868 | } cifs_stats; |
Pavel Shilovsky | d60622e | 2012-05-28 15:19:39 +0400 | [diff] [blame] | 869 | #ifdef CONFIG_CIFS_SMB2 |
| 870 | struct { |
| 871 | atomic_t smb2_com_sent[NUMBER_OF_SMB2_COMMANDS]; |
| 872 | atomic_t smb2_com_failed[NUMBER_OF_SMB2_COMMANDS]; |
| 873 | } smb2_stats; |
| 874 | #endif /* CONFIG_CIFS_SMB2 */ |
Pavel Shilovsky | 44c5818 | 2012-05-28 14:16:31 +0400 | [diff] [blame] | 875 | } stats; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 876 | #ifdef CONFIG_CIFS_STATS2 |
| 877 | unsigned long long time_writes; |
| 878 | unsigned long long time_reads; |
| 879 | unsigned long long time_opens; |
| 880 | unsigned long long time_deletes; |
| 881 | unsigned long long time_closes; |
| 882 | unsigned long long time_mkdirs; |
| 883 | unsigned long long time_rmdirs; |
| 884 | unsigned long long time_renames; |
| 885 | unsigned long long time_t2renames; |
| 886 | unsigned long long time_ffirst; |
| 887 | unsigned long long time_fnext; |
| 888 | unsigned long long time_fclose; |
| 889 | #endif /* CONFIG_CIFS_STATS2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 890 | __u64 bytes_read; |
| 891 | __u64 bytes_written; |
| 892 | spinlock_t stat_lock; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 893 | #endif /* CONFIG_CIFS_STATS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | FILE_SYSTEM_DEVICE_INFO fsDevInfo; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 895 | FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | FILE_SYSTEM_UNIX_INFO fsUnixInfo; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 897 | bool ipc:1; /* set if connection to IPC$ eg for RPC/PIPES */ |
| 898 | bool retry:1; |
| 899 | bool nocase:1; |
Steve French | 95b1cb9 | 2008-05-15 16:44:38 +0000 | [diff] [blame] | 900 | bool seal:1; /* transport encryption for this mounted share */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 901 | bool unix_ext:1; /* if false disable Linux extensions to CIFS protocol |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 902 | for this mount even if server would support */ |
Steve French | 84210e9 | 2008-10-23 04:42:37 +0000 | [diff] [blame] | 903 | bool local_lease:1; /* check leases (only) on local system not remote */ |
Steve French | 64cc2c6 | 2009-03-04 19:54:08 +0000 | [diff] [blame] | 904 | bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */ |
Steve French | 3d1a374 | 2014-08-11 21:05:25 -0500 | [diff] [blame] | 905 | bool broken_sparse_sup; /* if server or share does not support sparse */ |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 906 | bool need_reconnect:1; /* connection reset, tid now invalid */ |
Steve French | 592fafe | 2015-11-03 10:08:53 -0600 | [diff] [blame] | 907 | bool use_resilient:1; /* use resilient instead of durable handles */ |
Steve French | b618f00 | 2015-11-03 09:15:03 -0600 | [diff] [blame] | 908 | bool use_persistent:1; /* use persistent instead of durable handles */ |
Pavel Shilovsky | faaf946 | 2011-12-27 16:04:00 +0400 | [diff] [blame] | 909 | #ifdef CONFIG_CIFS_SMB2 |
| 910 | bool print:1; /* set if connection to printer share */ |
| 911 | bool bad_network_name:1; /* set if ret status STATUS_BAD_NETWORK_NAME */ |
Steve French | 769ee6a | 2013-06-19 14:15:30 -0500 | [diff] [blame] | 912 | __le32 capabilities; |
Pavel Shilovsky | faaf946 | 2011-12-27 16:04:00 +0400 | [diff] [blame] | 913 | __u32 share_flags; |
| 914 | __u32 maximal_access; |
| 915 | __u32 vol_serial_number; |
| 916 | __le64 vol_create_time; |
Steven French | af6a12e | 2013-10-09 20:55:53 -0500 | [diff] [blame] | 917 | __u32 ss_flags; /* sector size flags */ |
| 918 | __u32 perf_sector_size; /* best sector size for perf */ |
Steve French | de9f68d | 2013-11-15 11:26:24 -0600 | [diff] [blame] | 919 | __u32 max_chunks; |
| 920 | __u32 max_bytes_chunk; |
| 921 | __u32 max_bytes_copy; |
Pavel Shilovsky | faaf946 | 2011-12-27 16:04:00 +0400 | [diff] [blame] | 922 | #endif /* CONFIG_CIFS_SMB2 */ |
Suresh Jayaraman | d03382c | 2010-07-05 18:12:27 +0530 | [diff] [blame] | 923 | #ifdef CONFIG_CIFS_FSCACHE |
| 924 | u64 resource_id; /* server resource id */ |
| 925 | struct fscache_cookie *fscache; /* cookie for share */ |
| 926 | #endif |
Pavel Shilovsky | 233839b | 2012-09-19 06:22:45 -0700 | [diff] [blame] | 927 | struct list_head pending_opens; /* list of incomplete opens */ |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 928 | /* BB add field for back pointer to sb struct(s)? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | }; |
| 930 | |
| 931 | /* |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 932 | * This is a refcounted and timestamped container for a tcon pointer. The |
| 933 | * container holds a tcon reference. It is considered safe to free one of |
| 934 | * these when the tl_count goes to 0. The tl_time is the time of the last |
| 935 | * "get" on the container. |
| 936 | */ |
| 937 | struct tcon_link { |
Jeff Layton | b647c35 | 2010-10-28 11:16:44 -0400 | [diff] [blame] | 938 | struct rb_node tl_rbnode; |
Eric W. Biederman | 6d4a083 | 2013-02-06 01:48:56 -0800 | [diff] [blame] | 939 | kuid_t tl_uid; |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 940 | unsigned long tl_flags; |
| 941 | #define TCON_LINK_MASTER 0 |
| 942 | #define TCON_LINK_PENDING 1 |
| 943 | #define TCON_LINK_IN_TREE 2 |
| 944 | unsigned long tl_time; |
| 945 | atomic_t tl_count; |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 946 | struct cifs_tcon *tl_tcon; |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 947 | }; |
| 948 | |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 949 | extern struct tcon_link *cifs_sb_tlink(struct cifs_sb_info *cifs_sb); |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 950 | |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 951 | static inline struct cifs_tcon * |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 952 | tlink_tcon(struct tcon_link *tlink) |
| 953 | { |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 954 | return tlink->tl_tcon; |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 955 | } |
| 956 | |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 957 | extern void cifs_put_tlink(struct tcon_link *tlink); |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 958 | |
Jeff Layton | 13cfb73 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 959 | static inline struct tcon_link * |
| 960 | cifs_get_tlink(struct tcon_link *tlink) |
| 961 | { |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 962 | if (tlink && !IS_ERR(tlink)) |
| 963 | atomic_inc(&tlink->tl_count); |
Jeff Layton | 13cfb73 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 964 | return tlink; |
| 965 | } |
| 966 | |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 967 | /* This function is always expected to succeed */ |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 968 | extern struct cifs_tcon *cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb); |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 969 | |
Pavel Shilovsky | 233839b | 2012-09-19 06:22:45 -0700 | [diff] [blame] | 970 | #define CIFS_OPLOCK_NO_CHANGE 0xfe |
| 971 | |
| 972 | struct cifs_pending_open { |
| 973 | struct list_head olist; |
| 974 | struct tcon_link *tlink; |
| 975 | __u8 lease_key[16]; |
| 976 | __u32 oplock; |
| 977 | }; |
| 978 | |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 979 | /* |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 980 | * This info hangs off the cifsFileInfo structure, pointed to by llist. |
| 981 | * This is used to track byte stream locks on the file |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 982 | */ |
| 983 | struct cifsLockInfo { |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 984 | struct list_head llist; /* pointer to next cifsLockInfo */ |
Pavel Shilovsky | 85160e0 | 2011-10-22 15:33:29 +0400 | [diff] [blame] | 985 | struct list_head blist; /* pointer to locks blocked on this */ |
| 986 | wait_queue_head_t block_q; |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 987 | __u64 offset; |
| 988 | __u64 length; |
Pavel Shilovsky | 03776f4 | 2010-08-17 11:26:00 +0400 | [diff] [blame] | 989 | __u32 pid; |
Pavel Shilovsky | 04a6aa8 | 2012-02-28 14:16:55 +0300 | [diff] [blame] | 990 | __u32 type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 991 | }; |
| 992 | |
| 993 | /* |
| 994 | * One of these for each open instance of a file |
| 995 | */ |
| 996 | struct cifs_search_info { |
| 997 | loff_t index_of_last_entry; |
| 998 | __u16 entries_in_buffer; |
| 999 | __u16 info_level; |
| 1000 | __u32 resume_key; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 1001 | char *ntwrk_buf_start; |
| 1002 | char *srch_entries_start; |
Steve French | 0752f15 | 2008-10-07 20:03:33 +0000 | [diff] [blame] | 1003 | char *last_entry; |
Christoph Hellwig | eaf35b1 | 2011-07-16 15:24:37 -0400 | [diff] [blame] | 1004 | const char *presume_name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1005 | unsigned int resume_name_len; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 1006 | bool endOfSearch:1; |
| 1007 | bool emptyDir:1; |
| 1008 | bool unicode:1; |
| 1009 | bool smallBuf:1; /* so we know which buf_release function to call */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1010 | }; |
| 1011 | |
Pavel Shilovsky | 226730b | 2013-07-05 12:00:30 +0400 | [diff] [blame] | 1012 | struct cifs_open_parms { |
| 1013 | struct cifs_tcon *tcon; |
| 1014 | struct cifs_sb_info *cifs_sb; |
| 1015 | int disposition; |
| 1016 | int desired_access; |
| 1017 | int create_options; |
| 1018 | const char *path; |
| 1019 | struct cifs_fid *fid; |
Pavel Shilovsky | 9cbc0b7 | 2013-07-09 18:40:58 +0400 | [diff] [blame] | 1020 | bool reconnect:1; |
Pavel Shilovsky | 226730b | 2013-07-05 12:00:30 +0400 | [diff] [blame] | 1021 | }; |
| 1022 | |
Pavel Shilovsky | 4b4de76 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 1023 | struct cifs_fid { |
| 1024 | __u16 netfid; |
Pavel Shilovsky | f0df737 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 1025 | #ifdef CONFIG_CIFS_SMB2 |
| 1026 | __u64 persistent_fid; /* persist file id for smb2 */ |
| 1027 | __u64 volatile_fid; /* volatile file id for smb2 */ |
Pavel Shilovsky | b8c32db | 2012-09-19 06:22:44 -0700 | [diff] [blame] | 1028 | __u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for smb2 */ |
Steve French | b56eae4 | 2015-11-03 09:26:27 -0600 | [diff] [blame] | 1029 | __u8 create_guid[16]; |
Pavel Shilovsky | f0df737 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 1030 | #endif |
Pavel Shilovsky | 233839b | 2012-09-19 06:22:45 -0700 | [diff] [blame] | 1031 | struct cifs_pending_open *pending_open; |
Pavel Shilovsky | 42873b0 | 2013-09-05 21:30:16 +0400 | [diff] [blame] | 1032 | unsigned int epoch; |
| 1033 | bool purge_cache; |
Pavel Shilovsky | 4b4de76 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 1034 | }; |
| 1035 | |
Pavel Shilovsky | f45d341 | 2012-09-19 06:22:43 -0700 | [diff] [blame] | 1036 | struct cifs_fid_locks { |
| 1037 | struct list_head llist; |
| 1038 | struct cifsFileInfo *cfile; /* fid that owns locks */ |
| 1039 | struct list_head locks; /* locks held by fid above */ |
| 1040 | }; |
| 1041 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | struct cifsFileInfo { |
| 1043 | struct list_head tlist; /* pointer to next fid owned by tcon */ |
| 1044 | struct list_head flist; /* next fid (file instance) for this inode */ |
Pavel Shilovsky | f45d341 | 2012-09-19 06:22:43 -0700 | [diff] [blame] | 1045 | struct cifs_fid_locks *llist; /* brlocks held by this fid */ |
Eric W. Biederman | fef59fd | 2013-02-06 02:23:02 -0800 | [diff] [blame] | 1046 | kuid_t uid; /* allows finding which FileInfo structure */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | __u32 pid; /* process id who opened file */ |
Pavel Shilovsky | 4b4de76 | 2012-09-18 16:20:26 -0700 | [diff] [blame] | 1048 | struct cifs_fid fid; /* file id from remote */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1049 | /* BB add lock scope info here if needed */ ; |
| 1050 | /* lock scope id (0 if none) */ |
Jeff Layton | a5e18bc | 2010-10-11 15:07:18 -0400 | [diff] [blame] | 1051 | struct dentry *dentry; |
Jeff Layton | 1588617 | 2010-10-15 15:33:59 -0400 | [diff] [blame] | 1052 | unsigned int f_flags; |
Jeff Layton | 13cfb73 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 1053 | struct tcon_link *tlink; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 1054 | bool invalidHandle:1; /* file closed via session abend */ |
Jeff Layton | 3bc303c | 2009-09-21 06:47:50 -0400 | [diff] [blame] | 1055 | bool oplock_break_cancelled:1; |
Steve French | 6c0f621 | 2010-10-23 16:51:40 +0000 | [diff] [blame] | 1056 | int count; /* refcount protected by cifs_file_list_lock */ |
Steve French | a6ce493 | 2009-04-09 01:14:32 +0000 | [diff] [blame] | 1057 | struct mutex fh_mutex; /* prevents reopen race after dead ses*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | struct cifs_search_info srch_inf; |
Tejun Heo | 9b64697 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 1059 | struct work_struct oplock_break; /* work for oplock breaks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | }; |
| 1061 | |
Pavel Shilovsky | fa2989f | 2011-05-26 10:01:59 +0400 | [diff] [blame] | 1062 | struct cifs_io_parms { |
| 1063 | __u16 netfid; |
Pavel Shilovsky | 09a4707 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1064 | #ifdef CONFIG_CIFS_SMB2 |
| 1065 | __u64 persistent_fid; /* persist file id for smb2 */ |
| 1066 | __u64 volatile_fid; /* volatile file id for smb2 */ |
| 1067 | #endif |
Pavel Shilovsky | fa2989f | 2011-05-26 10:01:59 +0400 | [diff] [blame] | 1068 | __u32 pid; |
| 1069 | __u64 offset; |
| 1070 | unsigned int length; |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 1071 | struct cifs_tcon *tcon; |
Pavel Shilovsky | fa2989f | 2011-05-26 10:01:59 +0400 | [diff] [blame] | 1072 | }; |
| 1073 | |
Pavel Shilovsky | 09a4707 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1074 | struct cifs_readdata; |
| 1075 | |
| 1076 | /* asynchronous read support */ |
| 1077 | struct cifs_readdata { |
| 1078 | struct kref refcount; |
| 1079 | struct list_head list; |
| 1080 | struct completion done; |
| 1081 | struct cifsFileInfo *cfile; |
| 1082 | struct address_space *mapping; |
| 1083 | __u64 offset; |
| 1084 | unsigned int bytes; |
Pavel Shilovsky | 34a54d6 | 2014-07-10 10:03:29 +0400 | [diff] [blame] | 1085 | unsigned int got_bytes; |
Pavel Shilovsky | 09a4707 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1086 | pid_t pid; |
| 1087 | int result; |
Pavel Shilovsky | 09a4707 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1088 | struct work_struct work; |
Jeff Layton | 8321fec | 2012-09-19 06:22:32 -0700 | [diff] [blame] | 1089 | int (*read_into_pages)(struct TCP_Server_Info *server, |
| 1090 | struct cifs_readdata *rdata, |
| 1091 | unsigned int len); |
Jeff Layton | 5819575 | 2012-09-19 06:22:34 -0700 | [diff] [blame] | 1092 | struct kvec iov; |
Jeff Layton | 8321fec | 2012-09-19 06:22:32 -0700 | [diff] [blame] | 1093 | unsigned int pagesz; |
| 1094 | unsigned int tailsz; |
Pavel Shilovsky | bed9da0 | 2014-06-25 11:28:57 +0400 | [diff] [blame] | 1095 | unsigned int credits; |
Jeff Layton | c5fab6f | 2012-09-19 06:22:30 -0700 | [diff] [blame] | 1096 | unsigned int nr_pages; |
| 1097 | struct page *pages[]; |
Pavel Shilovsky | 09a4707 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1098 | }; |
| 1099 | |
Pavel Shilovsky | 3331914 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1100 | struct cifs_writedata; |
| 1101 | |
| 1102 | /* asynchronous write support */ |
| 1103 | struct cifs_writedata { |
| 1104 | struct kref refcount; |
| 1105 | struct list_head list; |
| 1106 | struct completion done; |
| 1107 | enum writeback_sync_modes sync_mode; |
| 1108 | struct work_struct work; |
| 1109 | struct cifsFileInfo *cfile; |
| 1110 | __u64 offset; |
| 1111 | pid_t pid; |
| 1112 | unsigned int bytes; |
| 1113 | int result; |
Jeff Layton | eddb079 | 2012-09-18 16:20:35 -0700 | [diff] [blame] | 1114 | unsigned int pagesz; |
| 1115 | unsigned int tailsz; |
Pavel Shilovsky | cb7e9ea | 2014-06-05 19:03:27 +0400 | [diff] [blame] | 1116 | unsigned int credits; |
Pavel Shilovsky | 3331914 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1117 | unsigned int nr_pages; |
Jeff Layton | 26c8f0d | 2014-02-07 11:04:04 -0500 | [diff] [blame] | 1118 | struct page *pages[]; |
Pavel Shilovsky | 3331914 | 2012-09-18 16:20:29 -0700 | [diff] [blame] | 1119 | }; |
| 1120 | |
Jeff Layton | 5f6dbc9 | 2010-10-15 15:34:06 -0400 | [diff] [blame] | 1121 | /* |
| 1122 | * Take a reference on the file private data. Must be called with |
| 1123 | * cifs_file_list_lock held. |
| 1124 | */ |
Jeff Layton | 764a1b1 | 2012-07-25 14:59:54 -0400 | [diff] [blame] | 1125 | static inline void |
| 1126 | cifsFileInfo_get_locked(struct cifsFileInfo *cifs_file) |
Dave Kleikamp | 6ab409b | 2009-08-31 11:07:12 -0400 | [diff] [blame] | 1127 | { |
Jeff Layton | 5f6dbc9 | 2010-10-15 15:34:06 -0400 | [diff] [blame] | 1128 | ++cifs_file->count; |
Dave Kleikamp | 6ab409b | 2009-08-31 11:07:12 -0400 | [diff] [blame] | 1129 | } |
| 1130 | |
Jeff Layton | 764a1b1 | 2012-07-25 14:59:54 -0400 | [diff] [blame] | 1131 | struct cifsFileInfo *cifsFileInfo_get(struct cifsFileInfo *cifs_file); |
Jeff Layton | b33879a | 2010-10-15 15:34:04 -0400 | [diff] [blame] | 1132 | void cifsFileInfo_put(struct cifsFileInfo *cifs_file); |
Dave Kleikamp | 6ab409b | 2009-08-31 11:07:12 -0400 | [diff] [blame] | 1133 | |
Pavel Shilovsky | 18cceb6 | 2013-09-05 13:01:06 +0400 | [diff] [blame] | 1134 | #define CIFS_CACHE_READ_FLG 1 |
| 1135 | #define CIFS_CACHE_HANDLE_FLG 2 |
Pavel Shilovsky | 42873b0 | 2013-09-05 21:30:16 +0400 | [diff] [blame] | 1136 | #define CIFS_CACHE_RH_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_HANDLE_FLG) |
Pavel Shilovsky | 18cceb6 | 2013-09-05 13:01:06 +0400 | [diff] [blame] | 1137 | #define CIFS_CACHE_WRITE_FLG 4 |
Pavel Shilovsky | 42873b0 | 2013-09-05 21:30:16 +0400 | [diff] [blame] | 1138 | #define CIFS_CACHE_RW_FLG (CIFS_CACHE_READ_FLG | CIFS_CACHE_WRITE_FLG) |
| 1139 | #define CIFS_CACHE_RHW_FLG (CIFS_CACHE_RW_FLG | CIFS_CACHE_HANDLE_FLG) |
Pavel Shilovsky | 18cceb6 | 2013-09-05 13:01:06 +0400 | [diff] [blame] | 1140 | |
| 1141 | #define CIFS_CACHE_READ(cinode) (cinode->oplock & CIFS_CACHE_READ_FLG) |
Pavel Shilovsky | 53ef101 | 2013-09-05 16:11:28 +0400 | [diff] [blame] | 1142 | #define CIFS_CACHE_HANDLE(cinode) (cinode->oplock & CIFS_CACHE_HANDLE_FLG) |
Pavel Shilovsky | 18cceb6 | 2013-09-05 13:01:06 +0400 | [diff] [blame] | 1143 | #define CIFS_CACHE_WRITE(cinode) (cinode->oplock & CIFS_CACHE_WRITE_FLG) |
| 1144 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1145 | /* |
| 1146 | * One of these for each file inode |
| 1147 | */ |
| 1148 | |
| 1149 | struct cifsInodeInfo { |
Pavel Shilovsky | d59dad2 | 2011-09-22 09:53:59 +0400 | [diff] [blame] | 1150 | bool can_cache_brlcks; |
Pavel Shilovsky | f45d341 | 2012-09-19 06:22:43 -0700 | [diff] [blame] | 1151 | struct list_head llist; /* locks helb by this inode */ |
Pavel Shilovsky | 1b4b55a | 2012-09-19 06:22:44 -0700 | [diff] [blame] | 1152 | struct rw_semaphore lock_sem; /* protect the fields above */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 1153 | /* BB add in lists for dirty pages i.e. write caching info for oplock */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | struct list_head openFileList; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */ |
Pavel Shilovsky | 18cceb6 | 2013-09-05 13:01:06 +0400 | [diff] [blame] | 1156 | unsigned int oplock; /* oplock/lease level we have */ |
Pavel Shilovsky | 42873b0 | 2013-09-05 21:30:16 +0400 | [diff] [blame] | 1157 | unsigned int epoch; /* used to track lease state changes */ |
Sachin Prabhu | c11f1df | 2014-03-11 16:11:47 +0000 | [diff] [blame] | 1158 | #define CIFS_INODE_PENDING_OPLOCK_BREAK (0) /* oplock break in progress */ |
| 1159 | #define CIFS_INODE_PENDING_WRITERS (1) /* Writes in progress */ |
| 1160 | #define CIFS_INODE_DOWNGRADE_OPLOCK_TO_L2 (2) /* Downgrade oplock to L2 */ |
Jeff Layton | aff8d5c | 2014-04-30 09:31:45 -0400 | [diff] [blame] | 1161 | #define CIFS_INO_DELETE_PENDING (3) /* delete pending on server */ |
| 1162 | #define CIFS_INO_INVALID_MAPPING (4) /* pagecache is invalid */ |
Jeff Layton | 4f73c7d | 2014-04-30 09:31:47 -0400 | [diff] [blame] | 1163 | #define CIFS_INO_LOCK (5) /* lock bit for synchronization */ |
Jeff Layton | aff8d5c | 2014-04-30 09:31:45 -0400 | [diff] [blame] | 1164 | unsigned long flags; |
Sachin Prabhu | c11f1df | 2014-03-11 16:11:47 +0000 | [diff] [blame] | 1165 | spinlock_t writers_lock; |
| 1166 | unsigned int writers; /* Number of writers on this inode */ |
Jeff Layton | aae62fd | 2011-01-20 13:36:50 -0500 | [diff] [blame] | 1167 | unsigned long time; /* jiffies of last update of inode */ |
Jeff Layton | 597b027 | 2012-03-23 14:40:56 -0400 | [diff] [blame] | 1168 | u64 server_eof; /* current file size on server -- protected by i_lock */ |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 1169 | u64 uniqueid; /* server inode number */ |
Jeff Layton | 20054bd | 2011-01-07 11:30:27 -0500 | [diff] [blame] | 1170 | u64 createtime; /* creation time on server */ |
Pavel Shilovsky | b8c32db | 2012-09-19 06:22:44 -0700 | [diff] [blame] | 1171 | #ifdef CONFIG_CIFS_SMB2 |
| 1172 | __u8 lease_key[SMB2_LEASE_KEY_SIZE]; /* lease key for this inode */ |
| 1173 | #endif |
Suresh Jayaraman | 9451a9a | 2010-07-05 18:12:45 +0530 | [diff] [blame] | 1174 | #ifdef CONFIG_CIFS_FSCACHE |
| 1175 | struct fscache_cookie *fscache; |
| 1176 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1177 | struct inode vfs_inode; |
| 1178 | }; |
| 1179 | |
| 1180 | static inline struct cifsInodeInfo * |
| 1181 | CIFS_I(struct inode *inode) |
| 1182 | { |
| 1183 | return container_of(inode, struct cifsInodeInfo, vfs_inode); |
| 1184 | } |
| 1185 | |
| 1186 | static inline struct cifs_sb_info * |
| 1187 | CIFS_SB(struct super_block *sb) |
| 1188 | { |
| 1189 | return sb->s_fs_info; |
| 1190 | } |
| 1191 | |
Al Viro | 7119e22 | 2014-10-22 00:25:12 -0400 | [diff] [blame] | 1192 | static inline struct cifs_sb_info * |
| 1193 | CIFS_FILE_SB(struct file *file) |
| 1194 | { |
| 1195 | return CIFS_SB(file_inode(file)->i_sb); |
| 1196 | } |
| 1197 | |
Steve French | ab2f218 | 2005-09-15 20:44:50 -0700 | [diff] [blame] | 1198 | static inline char CIFS_DIR_SEP(const struct cifs_sb_info *cifs_sb) |
Jeremy Allison | ac67055 | 2005-06-22 17:26:35 -0700 | [diff] [blame] | 1199 | { |
| 1200 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) |
| 1201 | return '/'; |
| 1202 | else |
| 1203 | return '\\'; |
| 1204 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 1206 | static inline void |
| 1207 | convert_delimiter(char *path, char delim) |
| 1208 | { |
Steve French | 1cc9bd6 | 2012-11-29 18:07:51 -0600 | [diff] [blame] | 1209 | char old_delim, *pos; |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 1210 | |
| 1211 | if (delim == '/') |
| 1212 | old_delim = '\\'; |
| 1213 | else |
| 1214 | old_delim = '/'; |
| 1215 | |
Steve French | 1cc9bd6 | 2012-11-29 18:07:51 -0600 | [diff] [blame] | 1216 | pos = path; |
| 1217 | while ((pos = strchr(pos, old_delim))) |
| 1218 | *pos = delim; |
Steve French | f87d39d | 2011-05-27 03:50:55 +0000 | [diff] [blame] | 1219 | } |
| 1220 | |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1221 | #ifdef CONFIG_CIFS_STATS |
| 1222 | #define cifs_stats_inc atomic_inc |
| 1223 | |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 1224 | static inline void cifs_stats_bytes_written(struct cifs_tcon *tcon, |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1225 | unsigned int bytes) |
| 1226 | { |
| 1227 | if (bytes) { |
| 1228 | spin_lock(&tcon->stat_lock); |
| 1229 | tcon->bytes_written += bytes; |
| 1230 | spin_unlock(&tcon->stat_lock); |
| 1231 | } |
| 1232 | } |
| 1233 | |
Steve French | 96daf2b | 2011-05-27 04:34:02 +0000 | [diff] [blame] | 1234 | static inline void cifs_stats_bytes_read(struct cifs_tcon *tcon, |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1235 | unsigned int bytes) |
| 1236 | { |
| 1237 | spin_lock(&tcon->stat_lock); |
| 1238 | tcon->bytes_read += bytes; |
| 1239 | spin_unlock(&tcon->stat_lock); |
| 1240 | } |
| 1241 | #else |
| 1242 | |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 1243 | #define cifs_stats_inc(field) do {} while (0) |
| 1244 | #define cifs_stats_bytes_written(tcon, bytes) do {} while (0) |
| 1245 | #define cifs_stats_bytes_read(tcon, bytes) do {} while (0) |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 1246 | |
| 1247 | #endif |
| 1248 | |
Jeff Layton | 2b84a36c | 2011-01-11 07:24:21 -0500 | [diff] [blame] | 1249 | |
| 1250 | /* |
Jeff Layton | 44d22d8 | 2011-10-19 15:29:49 -0400 | [diff] [blame] | 1251 | * This is the prototype for the mid receive function. This function is for |
| 1252 | * receiving the rest of the SMB frame, starting with the WordCount (which is |
| 1253 | * just after the MID in struct smb_hdr). Note: |
| 1254 | * |
| 1255 | * - This will be called by cifsd, with no locks held. |
| 1256 | * - The mid will still be on the pending_mid_q. |
| 1257 | * - mid->resp_buf will point to the current buffer. |
| 1258 | * |
| 1259 | * Returns zero on a successful receive, or an error. The receive state in |
| 1260 | * the TCP_Server_Info will also be updated. |
| 1261 | */ |
| 1262 | typedef int (mid_receive_t)(struct TCP_Server_Info *server, |
| 1263 | struct mid_q_entry *mid); |
| 1264 | |
| 1265 | /* |
| 1266 | * This is the prototype for the mid callback function. This is called once the |
| 1267 | * mid has been received off of the socket. When creating one, take special |
| 1268 | * care to avoid deadlocks. Things to bear in mind: |
Jeff Layton | 2b84a36c | 2011-01-11 07:24:21 -0500 | [diff] [blame] | 1269 | * |
Jeff Layton | 3c1105d | 2011-05-22 07:09:13 -0400 | [diff] [blame] | 1270 | * - it will be called by cifsd, with no locks held |
| 1271 | * - the mid will be removed from any lists |
Jeff Layton | 2b84a36c | 2011-01-11 07:24:21 -0500 | [diff] [blame] | 1272 | */ |
| 1273 | typedef void (mid_callback_t)(struct mid_q_entry *mid); |
| 1274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1275 | /* one of these for every pending CIFS request to the server */ |
| 1276 | struct mid_q_entry { |
| 1277 | struct list_head qhead; /* mids waiting on reply from this server */ |
Pavel Shilovsky | 2dc7e1c | 2011-12-26 22:53:34 +0400 | [diff] [blame] | 1278 | struct TCP_Server_Info *server; /* server corresponding to this mid */ |
Pavel Shilovsky | 7c9421e | 2012-03-23 14:28:03 -0400 | [diff] [blame] | 1279 | __u64 mid; /* multiplex id */ |
| 1280 | __u32 pid; /* process id */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1281 | __u32 sequence_number; /* for CIFS signing */ |
Steve French | 1047abc | 2005-10-11 19:58:06 -0700 | [diff] [blame] | 1282 | unsigned long when_alloc; /* when mid was created */ |
| 1283 | #ifdef CONFIG_CIFS_STATS2 |
| 1284 | unsigned long when_sent; /* time when smb send finished */ |
| 1285 | unsigned long when_received; /* when demux complete (taken off wire) */ |
| 1286 | #endif |
Jeff Layton | 44d22d8 | 2011-10-19 15:29:49 -0400 | [diff] [blame] | 1287 | mid_receive_t *receive; /* call receive callback */ |
Jeff Layton | 2b84a36c | 2011-01-11 07:24:21 -0500 | [diff] [blame] | 1288 | mid_callback_t *callback; /* call completion callback */ |
| 1289 | void *callback_data; /* general purpose pointer for callback */ |
Pavel Shilovsky | d4e4854 | 2012-03-23 14:28:02 -0400 | [diff] [blame] | 1290 | void *resp_buf; /* pointer to received SMB header */ |
Pavel Shilovsky | 7c9421e | 2012-03-23 14:28:03 -0400 | [diff] [blame] | 1291 | int mid_state; /* wish this were enum but can not pass to wait_event */ |
| 1292 | __le16 command; /* smb command code */ |
| 1293 | bool large_buf:1; /* if valid response, is pointer to large buf */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 1294 | bool multiRsp:1; /* multiple trans2 responses for one request */ |
| 1295 | bool multiEnd:1; /* both received */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | }; |
| 1297 | |
Steve French | 789e666 | 2011-08-09 18:44:44 +0000 | [diff] [blame] | 1298 | /* Make code in transport.c a little cleaner by moving |
| 1299 | update of optional stats into function below */ |
| 1300 | #ifdef CONFIG_CIFS_STATS2 |
| 1301 | |
| 1302 | static inline void cifs_in_send_inc(struct TCP_Server_Info *server) |
| 1303 | { |
| 1304 | atomic_inc(&server->in_send); |
| 1305 | } |
| 1306 | |
| 1307 | static inline void cifs_in_send_dec(struct TCP_Server_Info *server) |
| 1308 | { |
| 1309 | atomic_dec(&server->in_send); |
| 1310 | } |
| 1311 | |
| 1312 | static inline void cifs_num_waiters_inc(struct TCP_Server_Info *server) |
| 1313 | { |
| 1314 | atomic_inc(&server->num_waiters); |
| 1315 | } |
| 1316 | |
| 1317 | static inline void cifs_num_waiters_dec(struct TCP_Server_Info *server) |
| 1318 | { |
| 1319 | atomic_dec(&server->num_waiters); |
| 1320 | } |
| 1321 | |
| 1322 | static inline void cifs_save_when_sent(struct mid_q_entry *mid) |
| 1323 | { |
| 1324 | mid->when_sent = jiffies; |
| 1325 | } |
| 1326 | #else |
| 1327 | static inline void cifs_in_send_inc(struct TCP_Server_Info *server) |
| 1328 | { |
| 1329 | } |
| 1330 | static inline void cifs_in_send_dec(struct TCP_Server_Info *server) |
| 1331 | { |
| 1332 | } |
| 1333 | |
| 1334 | static inline void cifs_num_waiters_inc(struct TCP_Server_Info *server) |
| 1335 | { |
| 1336 | } |
| 1337 | |
| 1338 | static inline void cifs_num_waiters_dec(struct TCP_Server_Info *server) |
| 1339 | { |
| 1340 | } |
| 1341 | |
| 1342 | static inline void cifs_save_when_sent(struct mid_q_entry *mid) |
| 1343 | { |
| 1344 | } |
| 1345 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1346 | |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 1347 | /* for pending dnotify requests */ |
| 1348 | struct dir_notify_req { |
Steve French | 13cd4b7 | 2010-10-07 18:46:32 +0000 | [diff] [blame] | 1349 | struct list_head lhead; |
| 1350 | __le16 Pid; |
| 1351 | __le16 PidHigh; |
| 1352 | __u16 Mid; |
| 1353 | __u16 Tid; |
| 1354 | __u16 Uid; |
| 1355 | __u16 netfid; |
| 1356 | __u32 filter; /* CompletionFilter (for multishot) */ |
| 1357 | int multishot; |
| 1358 | struct file *pfile; |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 1359 | }; |
| 1360 | |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 1361 | struct dfs_info3_param { |
| 1362 | int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/ |
Igor Mammedov | 8aad018 | 2008-02-15 18:21:49 +0000 | [diff] [blame] | 1363 | int path_consumed; |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 1364 | int server_type; |
| 1365 | int ref_flag; |
| 1366 | char *path_name; |
| 1367 | char *node_name; |
| 1368 | }; |
| 1369 | |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 1370 | /* |
| 1371 | * common struct for holding inode info when searching for or updating an |
| 1372 | * inode with new info |
| 1373 | */ |
| 1374 | |
| 1375 | #define CIFS_FATTR_DFS_REFERRAL 0x1 |
Jeff Layton | 0b8f18e | 2009-07-09 01:46:37 -0400 | [diff] [blame] | 1376 | #define CIFS_FATTR_DELETE_PENDING 0x2 |
| 1377 | #define CIFS_FATTR_NEED_REVAL 0x4 |
Jeff Layton | 3d69438 | 2010-05-11 14:59:55 -0400 | [diff] [blame] | 1378 | #define CIFS_FATTR_INO_COLLISION 0x8 |
Jim McDonough | 74d290d | 2013-09-21 10:36:10 -0500 | [diff] [blame] | 1379 | #define CIFS_FATTR_UNKNOWN_NLINK 0x10 |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 1380 | |
| 1381 | struct cifs_fattr { |
| 1382 | u32 cf_flags; |
| 1383 | u32 cf_cifsattrs; |
| 1384 | u64 cf_uniqueid; |
| 1385 | u64 cf_eof; |
| 1386 | u64 cf_bytes; |
Jeff Layton | 20054bd | 2011-01-07 11:30:27 -0500 | [diff] [blame] | 1387 | u64 cf_createtime; |
Eric W. Biederman | 4a2c8cf | 2013-02-06 01:53:25 -0800 | [diff] [blame] | 1388 | kuid_t cf_uid; |
| 1389 | kgid_t cf_gid; |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 1390 | umode_t cf_mode; |
| 1391 | dev_t cf_rdev; |
| 1392 | unsigned int cf_nlink; |
| 1393 | unsigned int cf_dtype; |
| 1394 | struct timespec cf_atime; |
| 1395 | struct timespec cf_mtime; |
| 1396 | struct timespec cf_ctime; |
| 1397 | }; |
| 1398 | |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 1399 | static inline void free_dfs_info_param(struct dfs_info3_param *param) |
| 1400 | { |
| 1401 | if (param) { |
| 1402 | kfree(param->path_name); |
| 1403 | kfree(param->node_name); |
| 1404 | kfree(param); |
| 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | static inline void free_dfs_info_array(struct dfs_info3_param *param, |
| 1409 | int number_of_items) |
| 1410 | { |
| 1411 | int i; |
| 1412 | if ((number_of_items == 0) || (param == NULL)) |
| 1413 | return; |
| 1414 | for (i = 0; i < number_of_items; i++) { |
| 1415 | kfree(param[i].path_name); |
| 1416 | kfree(param[i].node_name); |
| 1417 | } |
| 1418 | kfree(param); |
| 1419 | } |
| 1420 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1421 | #define MID_FREE 0 |
| 1422 | #define MID_REQUEST_ALLOCATED 1 |
| 1423 | #define MID_REQUEST_SUBMITTED 2 |
| 1424 | #define MID_RESPONSE_RECEIVED 4 |
| 1425 | #define MID_RETRY_NEEDED 8 /* session closed while this request out */ |
Jeff Layton | 71823ba | 2011-02-10 08:03:50 -0500 | [diff] [blame] | 1426 | #define MID_RESPONSE_MALFORMED 0x10 |
Jeff Layton | 3c1105d | 2011-05-22 07:09:13 -0400 | [diff] [blame] | 1427 | #define MID_SHUTDOWN 0x20 |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 1428 | |
| 1429 | /* Types of response buffer returned from SendReceive2 */ |
| 1430 | #define CIFS_NO_BUFFER 0 /* Response buffer not returned */ |
| 1431 | #define CIFS_SMALL_BUFFER 1 |
| 1432 | #define CIFS_LARGE_BUFFER 2 |
| 1433 | #define CIFS_IOVEC 4 /* array of response buffers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1434 | |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1435 | /* Type of Request to SendReceive2 */ |
Jeff Layton | 7749981 | 2011-01-11 07:24:23 -0500 | [diff] [blame] | 1436 | #define CIFS_BLOCKING_OP 1 /* operation can block */ |
| 1437 | #define CIFS_ASYNC_OP 2 /* do not wait for response */ |
| 1438 | #define CIFS_TIMEOUT_MASK 0x003 /* only one of above set in req */ |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 1439 | #define CIFS_LOG_ERROR 0x010 /* log NT STATUS if non-zero */ |
| 1440 | #define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */ |
| 1441 | #define CIFS_NO_RESP 0x040 /* no response buffer required */ |
| 1442 | |
Pavel Shilovsky | a891f0f | 2012-05-23 16:14:34 +0400 | [diff] [blame] | 1443 | /* Type of request operation */ |
| 1444 | #define CIFS_ECHO_OP 0x080 /* echo request */ |
| 1445 | #define CIFS_OBREAK_OP 0x0100 /* oplock break request */ |
Pavel Shilovsky | ec2e452 | 2011-12-27 16:12:43 +0400 | [diff] [blame] | 1446 | #define CIFS_NEG_OP 0x0200 /* negotiate request */ |
| 1447 | #define CIFS_OP_MASK 0x0380 /* mask request type */ |
Pavel Shilovsky | cb7e9ea | 2014-06-05 19:03:27 +0400 | [diff] [blame] | 1448 | #define CIFS_HAS_CREDITS 0x0400 /* already has credits */ |
Pavel Shilovsky | a891f0f | 2012-05-23 16:14:34 +0400 | [diff] [blame] | 1449 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1450 | /* Security Flags: indicate type of session setup needed */ |
| 1451 | #define CIFSSEC_MAY_SIGN 0x00001 |
| 1452 | #define CIFSSEC_MAY_NTLM 0x00002 |
| 1453 | #define CIFSSEC_MAY_NTLMV2 0x00004 |
| 1454 | #define CIFSSEC_MAY_KRB5 0x00008 |
| 1455 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 1456 | #define CIFSSEC_MAY_LANMAN 0x00010 |
| 1457 | #define CIFSSEC_MAY_PLNTXT 0x00020 |
Steve French | 516897a | 2007-10-12 19:24:06 +0000 | [diff] [blame] | 1458 | #else |
| 1459 | #define CIFSSEC_MAY_LANMAN 0 |
| 1460 | #define CIFSSEC_MAY_PLNTXT 0 |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1461 | #endif /* weak passwords */ |
| 1462 | #define CIFSSEC_MAY_SEAL 0x00040 /* not supported yet */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 1463 | #define CIFSSEC_MAY_NTLMSSP 0x00080 /* raw ntlmssp with ntlmv2 */ |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 1464 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1465 | #define CIFSSEC_MUST_SIGN 0x01001 |
| 1466 | /* note that only one of the following can be set so the |
| 1467 | result of setting MUST flags more than once will be to |
| 1468 | require use of the stronger protocol */ |
| 1469 | #define CIFSSEC_MUST_NTLM 0x02002 |
| 1470 | #define CIFSSEC_MUST_NTLMV2 0x04004 |
| 1471 | #define CIFSSEC_MUST_KRB5 0x08008 |
| 1472 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 1473 | #define CIFSSEC_MUST_LANMAN 0x10010 |
| 1474 | #define CIFSSEC_MUST_PLNTXT 0x20020 |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 1475 | #ifdef CONFIG_CIFS_UPCALL |
Chuck Ebbert | 20d1752 | 2009-09-15 01:53:21 -0400 | [diff] [blame] | 1476 | #define CIFSSEC_MASK 0xBF0BF /* allows weak security but also krb5 */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 1477 | #else |
Chuck Ebbert | 20d1752 | 2009-09-15 01:53:21 -0400 | [diff] [blame] | 1478 | #define CIFSSEC_MASK 0xB70B7 /* current flags supported if weak */ |
Steve French | 016ec75 | 2007-10-16 18:10:10 +0000 | [diff] [blame] | 1479 | #endif /* UPCALL */ |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 1480 | #else /* do not allow weak pw hash */ |
Steve French | 88a4412 | 2012-01-18 17:13:47 -0600 | [diff] [blame] | 1481 | #define CIFSSEC_MUST_LANMAN 0 |
| 1482 | #define CIFSSEC_MUST_PLNTXT 0 |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 1483 | #ifdef CONFIG_CIFS_UPCALL |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 1484 | #define CIFSSEC_MASK 0x8F08F /* flags supported if no weak allowed */ |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 1485 | #else |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 1486 | #define CIFSSEC_MASK 0x87087 /* flags supported if no weak allowed */ |
Steve French | 016ec75 | 2007-10-16 18:10:10 +0000 | [diff] [blame] | 1487 | #endif /* UPCALL */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1488 | #endif /* WEAK_PW_HASH */ |
| 1489 | #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 1490 | #define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 1491 | |
Jeff Layton | 896a8fc | 2013-05-26 07:01:01 -0400 | [diff] [blame] | 1492 | #define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP) |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 1493 | #define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2) |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 1494 | #define CIFSSEC_AUTH_MASK (CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_LANMAN | CIFSSEC_MAY_PLNTXT | CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_NTLMSSP) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1495 | /* |
| 1496 | ***************************************************************** |
| 1497 | * All constants go here |
| 1498 | ***************************************************************** |
| 1499 | */ |
| 1500 | |
| 1501 | #define UID_HASH (16) |
| 1502 | |
| 1503 | /* |
| 1504 | * Note that ONE module should define _DECLARE_GLOBALS_HERE to cause the |
| 1505 | * following to be declared. |
| 1506 | */ |
| 1507 | |
| 1508 | /**************************************************************************** |
| 1509 | * Locking notes. All updates to global variables and lists should be |
| 1510 | * protected by spinlocks or semaphores. |
| 1511 | * |
| 1512 | * Spinlocks |
| 1513 | * --------- |
| 1514 | * GlobalMid_Lock protects: |
| 1515 | * list operations on pending_mid_q and oplockQ |
| 1516 | * updates to XID counters, multiplex id and SMB sequence numbers |
Suresh Jayaraman | 6573e9b | 2010-10-18 23:52:18 +0530 | [diff] [blame] | 1517 | * cifs_file_list_lock protects: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | * list operations on tcp and SMB session lists and tCon lists |
| 1519 | * f_owner.lock protects certain per file struct operations |
| 1520 | * mapping->page_lock protects certain per page operations |
| 1521 | * |
| 1522 | * Semaphores |
| 1523 | * ---------- |
| 1524 | * sesSem operations on smb session |
| 1525 | * tconSem operations on tree connection |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 1526 | * fh_sem file handle reconnection operations |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1527 | * |
| 1528 | ****************************************************************************/ |
| 1529 | |
| 1530 | #ifdef DECLARE_GLOBALS_HERE |
| 1531 | #define GLOBAL_EXTERN |
| 1532 | #else |
| 1533 | #define GLOBAL_EXTERN extern |
| 1534 | #endif |
| 1535 | |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 1536 | /* |
| 1537 | * the list of TCP_Server_Info structures, ie each of the sockets |
Steve French | fb39601 | 2008-11-13 20:04:07 +0000 | [diff] [blame] | 1538 | * connecting our client to a distinct server (ip address), is |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 1539 | * chained together by cifs_tcp_ses_list. The list of all our SMB |
Steve French | fb39601 | 2008-11-13 20:04:07 +0000 | [diff] [blame] | 1540 | * sessions (and from that the tree connections) can be found |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 1541 | * by iterating over cifs_tcp_ses_list |
| 1542 | */ |
| 1543 | GLOBAL_EXTERN struct list_head cifs_tcp_ses_list; |
| 1544 | |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 1545 | /* |
| 1546 | * This lock protects the cifs_tcp_ses_list, the list of smb sessions per |
| 1547 | * tcp session, and the list of tcon's per smb session. It also protects |
| 1548 | * the reference counters for the server, smb session, and tcon. Finally, |
| 1549 | * changes to the tcon->tidStatus should be done while holding this lock. |
| 1550 | */ |
Suresh Jayaraman | 3f9bcca | 2010-10-18 23:29:37 +0530 | [diff] [blame] | 1551 | GLOBAL_EXTERN spinlock_t cifs_tcp_ses_lock; |
Steve French | ddb4cbf | 2008-11-20 20:00:44 +0000 | [diff] [blame] | 1552 | |
| 1553 | /* |
| 1554 | * This lock protects the cifs_file->llist and cifs_file->flist |
| 1555 | * list operations, and updates to some flags (cifs_file->invalidHandle) |
| 1556 | * It will be moved to either use the tcon->stat_lock or equivalent later. |
| 1557 | * If cifs_tcp_ses_lock and the lock below are both needed to be held, then |
| 1558 | * the cifs_tcp_ses_lock must be grabbed first and released last. |
| 1559 | */ |
Jeff Layton | 4477288 | 2010-10-15 15:34:03 -0400 | [diff] [blame] | 1560 | GLOBAL_EXTERN spinlock_t cifs_file_list_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1561 | |
Steve French | 0eff0e2 | 2011-02-24 05:39:23 +0000 | [diff] [blame] | 1562 | #ifdef CONFIG_CIFS_DNOTIFY_EXPERIMENTAL /* unused temporarily */ |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 1563 | /* Outstanding dir notify requests */ |
| 1564 | GLOBAL_EXTERN struct list_head GlobalDnotifyReqList; |
| 1565 | /* DirNotify response queue */ |
| 1566 | GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q; |
Steve French | 0eff0e2 | 2011-02-24 05:39:23 +0000 | [diff] [blame] | 1567 | #endif /* was needed for dnotify, and will be needed for inotify when VFS fix */ |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 1568 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1569 | /* |
| 1570 | * Global transaction id (XID) information |
| 1571 | */ |
| 1572 | GLOBAL_EXTERN unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 1573 | GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1574 | GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 1575 | GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above & list operations */ |
| 1576 | /* on midQ entries */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1577 | /* |
| 1578 | * Global counters, updated atomically |
| 1579 | */ |
| 1580 | GLOBAL_EXTERN atomic_t sesInfoAllocCount; |
| 1581 | GLOBAL_EXTERN atomic_t tconInfoAllocCount; |
| 1582 | GLOBAL_EXTERN atomic_t tcpSesAllocCount; |
| 1583 | GLOBAL_EXTERN atomic_t tcpSesReconnectCount; |
| 1584 | GLOBAL_EXTERN atomic_t tconInfoReconnectCount; |
| 1585 | |
Steve French | aaa9bbe | 2008-05-23 17:38:32 +0000 | [diff] [blame] | 1586 | /* Various Debug counters */ |
Steve French | 4498eed5 | 2005-12-03 13:58:57 -0800 | [diff] [blame] | 1587 | GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */ |
| 1588 | #ifdef CONFIG_CIFS_STATS2 |
| 1589 | GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */ |
| 1590 | GLOBAL_EXTERN atomic_t totSmBufAllocCount; |
| 1591 | #endif |
| 1592 | GLOBAL_EXTERN atomic_t smBufAllocCount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1593 | GLOBAL_EXTERN atomic_t midCount; |
| 1594 | |
| 1595 | /* Misc globals */ |
Jeff Layton | 5e500ed | 2012-05-16 07:13:17 -0400 | [diff] [blame] | 1596 | GLOBAL_EXTERN bool enable_oplocks; /* enable or disable oplocks */ |
Kees Cook | 1404297 | 2016-03-17 14:22:54 -0700 | [diff] [blame] | 1597 | GLOBAL_EXTERN bool lookupCacheEnabled; |
Jeff Layton | 04912d6 | 2010-04-24 07:57:45 -0400 | [diff] [blame] | 1598 | GLOBAL_EXTERN unsigned int global_secflags; /* if on, session setup sent |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1599 | with more secure ntlmssp2 challenge/resp */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1600 | GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */ |
Kees Cook | 1404297 | 2016-03-17 14:22:54 -0700 | [diff] [blame] | 1601 | GLOBAL_EXTERN bool linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1602 | GLOBAL_EXTERN unsigned int CIFSMaxBufSize; /* max size not including hdr */ |
| 1603 | GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */ |
| 1604 | GLOBAL_EXTERN unsigned int cifs_min_small; /* min size of small buf pool */ |
| 1605 | GLOBAL_EXTERN unsigned int cifs_max_pending; /* MAX requests at once to server*/ |
| 1606 | |
Shirish Pargaonkar | 21fed0d | 2011-08-09 14:30:48 -0500 | [diff] [blame] | 1607 | #ifdef CONFIG_CIFS_ACL |
Shirish Pargaonkar | 4d79dba | 2011-04-27 23:34:35 -0500 | [diff] [blame] | 1608 | GLOBAL_EXTERN struct rb_root uidtree; |
| 1609 | GLOBAL_EXTERN struct rb_root gidtree; |
| 1610 | GLOBAL_EXTERN spinlock_t siduidlock; |
| 1611 | GLOBAL_EXTERN spinlock_t sidgidlock; |
Shirish Pargaonkar | 21fed0d | 2011-08-09 14:30:48 -0500 | [diff] [blame] | 1612 | GLOBAL_EXTERN struct rb_root siduidtree; |
| 1613 | GLOBAL_EXTERN struct rb_root sidgidtree; |
| 1614 | GLOBAL_EXTERN spinlock_t uidsidlock; |
| 1615 | GLOBAL_EXTERN spinlock_t gidsidlock; |
| 1616 | #endif /* CONFIG_CIFS_ACL */ |
Shirish Pargaonkar | 4d79dba | 2011-04-27 23:34:35 -0500 | [diff] [blame] | 1617 | |
Tejun Heo | 9b64697 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 1618 | void cifs_oplock_break(struct work_struct *work); |
Linus Torvalds | 3b7433b | 2010-08-07 12:42:58 -0700 | [diff] [blame] | 1619 | |
Jeff Layton | 3bc303c | 2009-09-21 06:47:50 -0400 | [diff] [blame] | 1620 | extern const struct slow_work_ops cifs_oplock_break_ops; |
Jeff Layton | da472fc | 2012-03-23 14:40:53 -0400 | [diff] [blame] | 1621 | extern struct workqueue_struct *cifsiod_wq; |
Suresh Jayaraman | abd2e44 | 2010-06-22 20:52:50 +0530 | [diff] [blame] | 1622 | |
Pavel Shilovsky | 2dc7e1c | 2011-12-26 22:53:34 +0400 | [diff] [blame] | 1623 | extern mempool_t *cifs_mid_poolp; |
| 1624 | |
Jeff Layton | 23db65f | 2012-05-15 12:20:51 -0400 | [diff] [blame] | 1625 | /* Operations for different SMB versions */ |
| 1626 | #define SMB1_VERSION_STRING "1.0" |
| 1627 | extern struct smb_version_operations smb1_operations; |
| 1628 | extern struct smb_version_values smb1_values; |
Steve French | e4aa25e | 2012-10-01 12:26:22 -0500 | [diff] [blame] | 1629 | #define SMB20_VERSION_STRING "2.0" |
Pavel Shilovsky | 53ef101 | 2013-09-05 16:11:28 +0400 | [diff] [blame] | 1630 | extern struct smb_version_operations smb20_operations; |
Steve French | e4aa25e | 2012-10-01 12:26:22 -0500 | [diff] [blame] | 1631 | extern struct smb_version_values smb20_values; |
Steve French | 1080ef7 | 2011-02-24 18:07:19 +0000 | [diff] [blame] | 1632 | #define SMB21_VERSION_STRING "2.1" |
| 1633 | extern struct smb_version_operations smb21_operations; |
| 1634 | extern struct smb_version_values smb21_values; |
Steve French | e4aa25e | 2012-10-01 12:26:22 -0500 | [diff] [blame] | 1635 | #define SMB30_VERSION_STRING "3.0" |
Steve French | 38107d4 | 2012-12-08 22:08:06 -0600 | [diff] [blame] | 1636 | extern struct smb_version_operations smb30_operations; |
Steve French | e4aa25e | 2012-10-01 12:26:22 -0500 | [diff] [blame] | 1637 | extern struct smb_version_values smb30_values; |
Steve French | 20b6d8b | 2013-06-12 22:48:41 -0500 | [diff] [blame] | 1638 | #define SMB302_VERSION_STRING "3.02" |
| 1639 | /*extern struct smb_version_operations smb302_operations;*/ /* not needed yet */ |
| 1640 | extern struct smb_version_values smb302_values; |
Steve French | 5f7fbf7 | 2014-12-17 22:52:58 -0600 | [diff] [blame] | 1641 | #define SMB311_VERSION_STRING "3.1.1" |
Steve French | aab1893 | 2015-06-23 23:37:11 -0500 | [diff] [blame] | 1642 | #define ALT_SMB311_VERSION_STRING "3.11" |
| 1643 | extern struct smb_version_operations smb311_operations; |
Steve French | 5f7fbf7 | 2014-12-17 22:52:58 -0600 | [diff] [blame] | 1644 | extern struct smb_version_values smb311_values; |
Suresh Jayaraman | abd2e44 | 2010-06-22 20:52:50 +0530 | [diff] [blame] | 1645 | #endif /* _CIFS_GLOB_H */ |