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> |
Tejun Heo | 9b64697 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 25 | #include <linux/workqueue.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include "cifs_fs_sb.h" |
Steve French | 442aa31 | 2007-09-24 20:25:46 +0000 | [diff] [blame] | 27 | #include "cifsacl.h" |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 28 | #include <crypto/internal/hash.h> |
| 29 | #include <linux/scatterlist.h> |
| 30 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | /* |
| 32 | * The sizes of various internal tables and strings |
| 33 | */ |
| 34 | #define MAX_UID_INFO 16 |
| 35 | #define MAX_SES_INFO 2 |
| 36 | #define MAX_TCON_INFO 4 |
| 37 | |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 38 | #define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | #define MAX_SERVER_SIZE 15 |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 40 | #define MAX_SHARE_SIZE 64 /* used to be 20, this should still be enough */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null |
| 42 | termination then *2 for unicode versions */ |
Jeff Layton | 4ff67b7 | 2010-07-06 20:43:02 -0400 | [diff] [blame] | 43 | #define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | #define CIFS_MIN_RCV_POOL 4 |
| 46 | |
| 47 | /* |
| 48 | * MAX_REQ is the maximum number of requests that WE will send |
André Goddard Rosa | af901ca | 2009-11-14 13:09:05 -0200 | [diff] [blame] | 49 | * on one socket concurrently. It also matches the most common |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 50 | * value of max multiplex returned by servers. We may |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | * eventually want to use the negotiated value (in case |
| 52 | * future servers can handle more) when we are more confident that |
| 53 | * we will not have problems oveloading the socket with pending |
| 54 | * write data. |
| 55 | */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 56 | #define CIFS_MAX_REQ 50 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 58 | #define RFC1001_NAME_LEN 15 |
| 59 | #define RFC1001_NAME_LEN_WITH_NULL (RFC1001_NAME_LEN + 1) |
| 60 | |
| 61 | /* currently length of NIP6_FMT */ |
| 62 | #define SERVER_NAME_LENGTH 40 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | #define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1) |
| 64 | |
| 65 | /* used to define string lengths for reversing unicode strings */ |
| 66 | /* (256+1)*2 = 514 */ |
| 67 | /* (max path length + 1 for null) * 2 for unicode */ |
| 68 | #define MAX_NAME 514 |
| 69 | |
| 70 | #include "cifspdu.h" |
| 71 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | #ifndef XATTR_DOS_ATTRIB |
| 73 | #define XATTR_DOS_ATTRIB "user.DOSATTRIB" |
| 74 | #endif |
| 75 | |
| 76 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | * CIFS vfs client Status information (based on what we know.) |
| 78 | */ |
| 79 | |
Steve French | 6c0f621 | 2010-10-23 16:51:40 +0000 | [diff] [blame] | 80 | /* associated with each tcp and smb session */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | enum statusEnum { |
| 82 | CifsNew = 0, |
| 83 | CifsGood, |
| 84 | CifsExiting, |
| 85 | CifsNeedReconnect |
| 86 | }; |
| 87 | |
| 88 | enum securityEnum { |
Jeff Layton | daf5b0b | 2010-07-06 20:43:02 -0400 | [diff] [blame] | 89 | LANMAN = 0, /* Legacy LANMAN auth */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 90 | NTLM, /* Legacy NTLM012 auth with NTLM hash */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 92 | RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */ |
Steve French | f46c723 | 2009-06-25 03:04:20 +0000 | [diff] [blame] | 93 | /* NTLMSSP, */ /* can use rawNTLMSSP instead of NTLMSSP via SPNEGO */ |
Steve French | c16fefa | 2008-08-19 19:35:33 +0000 | [diff] [blame] | 94 | Kerberos, /* Kerberos via SPNEGO */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | }; |
| 96 | |
| 97 | enum protocolEnum { |
Steve French | 3ec332e | 2008-11-14 03:35:10 +0000 | [diff] [blame] | 98 | TCP = 0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | SCTP |
| 100 | /* Netbios frames protocol not supported at this time */ |
| 101 | }; |
| 102 | |
Shirish Pargaonkar | 5f98ca9 | 2010-09-18 22:01:58 -0500 | [diff] [blame] | 103 | struct session_key { |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 104 | unsigned int len; |
Shirish Pargaonkar | 21e7339 | 2010-10-21 06:42:55 -0500 | [diff] [blame] | 105 | char *response; |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 106 | }; |
| 107 | |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 108 | /* crypto security descriptor definition */ |
| 109 | struct sdesc { |
| 110 | struct shash_desc shash; |
| 111 | char ctx[]; |
| 112 | }; |
| 113 | |
Shirish Pargaonkar | f7c5445 | 2010-10-26 18:10:24 -0500 | [diff] [blame] | 114 | /* crypto hashing related structure/fields, not specific to a sec mech */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 115 | struct cifs_secmech { |
| 116 | struct crypto_shash *hmacmd5; /* hmac-md5 hash function */ |
| 117 | struct crypto_shash *md5; /* md5 hash function */ |
| 118 | struct sdesc *sdeschmacmd5; /* ctxt to generate ntlmv2 hash, CR1 */ |
| 119 | struct sdesc *sdescmd5; /* ctxt to generate cifs/smb signature */ |
| 120 | }; |
| 121 | |
Shirish Pargaonkar | d3686d5 | 2010-10-28 09:53:07 -0500 | [diff] [blame] | 122 | /* per smb session structure/fields */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 123 | struct ntlmssp_auth { |
| 124 | __u32 client_flags; /* sent by client in type 1 ntlmsssp exchange */ |
| 125 | __u32 server_flags; /* sent by server in type 2 ntlmssp exchange */ |
| 126 | unsigned char ciphertext[CIFS_CPHTXT_SIZE]; /* sent to server */ |
Shirish Pargaonkar | d3686d5 | 2010-10-28 09:53:07 -0500 | [diff] [blame] | 127 | char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlmssp */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 128 | }; |
| 129 | |
Steve French | 442aa31 | 2007-09-24 20:25:46 +0000 | [diff] [blame] | 130 | struct cifs_cred { |
| 131 | int uid; |
| 132 | int gid; |
| 133 | int mode; |
| 134 | int cecount; |
| 135 | struct cifs_sid osid; |
| 136 | struct cifs_sid gsid; |
| 137 | struct cifs_ntace *ntaces; |
| 138 | struct cifs_ace *aces; |
| 139 | }; |
| 140 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | /* |
| 142 | ***************************************************************** |
| 143 | * Except the CIFS PDUs themselves all the |
| 144 | * globally interesting structs should go here |
| 145 | ***************************************************************** |
| 146 | */ |
| 147 | |
| 148 | struct TCP_Server_Info { |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 149 | struct list_head tcp_ses_list; |
| 150 | struct list_head smb_ses_list; |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 151 | int srv_count; /* reference counter */ |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 152 | /* 15 character server name + 0x20 16th byte indicating type = srv */ |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 153 | char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; |
Jeff Layton | c359cf3 | 2007-11-16 22:22:06 +0000 | [diff] [blame] | 154 | char *hostname; /* hostname portion of UNC string */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | struct socket *ssocket; |
| 156 | union { |
| 157 | struct sockaddr_in sockAddr; |
| 158 | struct sockaddr_in6 sockAddr6; |
| 159 | } addr; |
Ben Greear | 3eb9a88 | 2010-09-01 17:06:02 -0700 | [diff] [blame] | 160 | struct sockaddr_storage srcaddr; /* locally bind to this IP */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 161 | wait_queue_head_t response_q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/ |
| 163 | struct list_head pending_mid_q; |
| 164 | void *Server_NlsInfo; /* BB - placeholder for future NLS info */ |
| 165 | unsigned short server_codepage; /* codepage for the server */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 166 | enum protocolEnum protocolType; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | char versionMajor; |
| 168 | char versionMinor; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 169 | bool svlocal:1; /* local server or remote */ |
Steve French | edf1ae4 | 2008-10-29 00:47:57 +0000 | [diff] [blame] | 170 | bool noblocksnd; /* use blocking sendmsg */ |
| 171 | bool noautotune; /* do not autotune send buf sizes */ |
Steve French | 6a5fa236 | 2010-01-01 01:28:43 +0000 | [diff] [blame] | 172 | bool tcp_nodelay; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | atomic_t inFlight; /* number of requests on the wire to server */ |
Steve French | 131afd0b | 2005-10-07 09:51:05 -0700 | [diff] [blame] | 174 | #ifdef CONFIG_CIFS_STATS2 |
| 175 | atomic_t inSend; /* requests trying to send */ |
| 176 | atomic_t num_waiters; /* blocked waiting to get in sendrecv */ |
| 177 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | enum statusEnum tcpStatus; /* what we think the status is */ |
Jeff Layton | 72ca545 | 2008-12-01 07:09:36 -0500 | [diff] [blame] | 179 | struct mutex srv_mutex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | struct task_struct *tsk; |
| 181 | char server_GUID[16]; |
| 182 | char secMode; |
| 183 | enum securityEnum secType; |
| 184 | unsigned int maxReq; /* Clients should submit no more */ |
| 185 | /* than maxReq distinct unanswered SMBs to the server when using */ |
| 186 | /* multiplexed reads or writes */ |
| 187 | unsigned int maxBuf; /* maxBuf specifies the maximum */ |
| 188 | /* message size the server can send or receive for non-raw SMBs */ |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 189 | unsigned int max_rw; /* maxRw specifies the maximum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | /* message size the server can send or receive for */ |
| 191 | /* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */ |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 192 | unsigned int max_vcs; /* maximum number of smb sessions, at least |
| 193 | those that can be specified uniquely with |
| 194 | vcnumbers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | char sessid[4]; /* unique token id for this session */ |
| 196 | /* (returned on Negotiate */ |
| 197 | int capabilities; /* allow selective disabling of caps by smb sess */ |
Steve French | de7ed55 | 2006-09-30 13:25:52 +0000 | [diff] [blame] | 198 | int timeAdj; /* Adjust for difference in server time zone in sec */ |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 199 | __u16 CurrentMid; /* multiplex id - rotating counter */ |
Shirish Pargaonkar | d3ba50b | 2010-10-27 15:20:36 -0500 | [diff] [blame] | 200 | char cryptkey[CIFS_CRYPTO_KEY_SIZE]; /* used by ntlm, ntlmv2 etc */ |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 201 | /* 16th byte of RFC1001 workstation name is always null */ |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 202 | char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 203 | __u32 sequence_number; /* needed for CIFS PDU signature */ |
Shirish Pargaonkar | 5f98ca9 | 2010-09-18 22:01:58 -0500 | [diff] [blame] | 204 | struct session_key session_key; |
Steve French | 3a5ff61 | 2006-07-14 22:37:11 +0000 | [diff] [blame] | 205 | unsigned long lstrp; /* when we got last response from this server */ |
Jeff Layton | 9bf67e5 | 2010-04-24 07:57:46 -0400 | [diff] [blame] | 206 | u16 dialect; /* dialect index that server chose */ |
Shirish Pargaonkar | d2b9152 | 2010-10-21 14:25:08 -0500 | [diff] [blame] | 207 | struct cifs_secmech secmech; /* crypto sec mech functs, descriptors */ |
Jeff Layton | 26efa0b | 2010-04-24 07:57:49 -0400 | [diff] [blame] | 208 | /* extended security flavors that server supports */ |
| 209 | bool sec_kerberos; /* supports plain Kerberos */ |
| 210 | bool sec_mskerberos; /* supports legacy MS Kerberos */ |
| 211 | bool sec_kerberosu2u; /* supports U2U Kerberos */ |
| 212 | bool sec_ntlmssp; /* supports NTLMSSP */ |
Shirish Pargaonkar | 5d0d288 | 2010-10-13 18:15:00 -0500 | [diff] [blame] | 213 | bool session_estab; /* mark when very first sess is established */ |
Suresh Jayaraman | 488f1d2d | 2010-07-05 18:12:15 +0530 | [diff] [blame] | 214 | #ifdef CONFIG_CIFS_FSCACHE |
| 215 | struct fscache_cookie *fscache; /* client index cache cookie */ |
| 216 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | }; |
| 218 | |
| 219 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | * Session structure. One of these for each uid session with a particular host |
| 221 | */ |
| 222 | struct cifsSesInfo { |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 223 | struct list_head smb_ses_list; |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 224 | struct list_head tcon_list; |
Steve French | d7b619c | 2010-02-25 05:36:46 +0000 | [diff] [blame] | 225 | struct mutex session_mutex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | struct TCP_Server_Info *server; /* pointer to server info */ |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 227 | int ses_count; /* reference counter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | enum statusEnum status; |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 229 | unsigned overrideSecFlg; /* if non-zero override global sec flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | __u16 ipc_tid; /* special tid for connection to IPC share */ |
| 231 | __u16 flags; |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 232 | __u16 vcnum; |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 233 | char *serverOS; /* name of operating system underlying server */ |
| 234 | char *serverNOS; /* name of network operating system of server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 235 | char *serverDomain; /* security realm of server */ |
| 236 | int Suid; /* remote smb uid */ |
Jeff Layton | 3e4b3e1 | 2010-07-19 18:00:17 -0400 | [diff] [blame] | 237 | uid_t linux_uid; /* overriding owner of files on the mount */ |
| 238 | uid_t cred_uid; /* owner of credentials */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | int capabilities; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 240 | char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 241 | TCP names - will ipv6 and sctp addresses fit? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | char userName[MAX_USERNAME_SIZE + 1]; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 243 | char *domainName; |
| 244 | char *password; |
Shirish Pargaonkar | 5d0d288 | 2010-10-13 18:15:00 -0500 | [diff] [blame] | 245 | struct session_key auth_key; |
Shirish Pargaonkar | d3686d5 | 2010-10-28 09:53:07 -0500 | [diff] [blame] | 246 | struct ntlmssp_auth *ntlmssp; /* ciphertext, flags, server challenge */ |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 247 | bool need_reconnect:1; /* connection reset, uid now invalid */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | }; |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 249 | /* no more than one of the following three session flags may be set */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | #define CIFS_SES_NT4 1 |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 251 | #define CIFS_SES_OS2 2 |
| 252 | #define CIFS_SES_W9X 4 |
| 253 | /* following flag is set for old servers such as OS2 (and Win95?) |
| 254 | which do not negotiate NTLM or POSIX dialects, but instead |
| 255 | negotiate one of the older LANMAN dialects */ |
| 256 | #define CIFS_SES_LANMAN 8 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | /* |
| 258 | * 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] | 259 | * session |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | */ |
| 261 | struct cifsTconInfo { |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 262 | struct list_head tcon_list; |
| 263 | int tc_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | struct list_head openFileList; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | struct cifsSesInfo *ses; /* pointer to session associated with */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 266 | char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | char *nativeFileSystem; |
Jeff Layton | 00e485b | 2008-12-05 20:41:21 -0500 | [diff] [blame] | 268 | char *password; /* for share-level security */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | __u16 tid; /* The 2 byte tree id */ |
| 270 | __u16 Flags; /* optional support bits */ |
| 271 | enum statusEnum tidStatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | #ifdef CONFIG_CIFS_STATS |
| 273 | atomic_t num_smbs_sent; |
| 274 | atomic_t num_writes; |
| 275 | atomic_t num_reads; |
Steve French | b298f22 | 2009-02-21 21:17:43 +0000 | [diff] [blame] | 276 | atomic_t num_flushes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | atomic_t num_oplock_brks; |
| 278 | atomic_t num_opens; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 279 | atomic_t num_closes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | atomic_t num_deletes; |
| 281 | atomic_t num_mkdirs; |
Steve French | 65bc98b | 2009-07-10 15:27:25 +0000 | [diff] [blame] | 282 | atomic_t num_posixopens; |
| 283 | atomic_t num_posixmkdirs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | atomic_t num_rmdirs; |
| 285 | atomic_t num_renames; |
| 286 | atomic_t num_t2renames; |
Steve French | dfb7533 | 2005-06-22 17:13:47 -0700 | [diff] [blame] | 287 | atomic_t num_ffirst; |
| 288 | atomic_t num_fnext; |
| 289 | atomic_t num_fclose; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 290 | atomic_t num_hardlinks; |
| 291 | atomic_t num_symlinks; |
| 292 | atomic_t num_locks; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 293 | atomic_t num_acl_get; |
| 294 | atomic_t num_acl_set; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 295 | #ifdef CONFIG_CIFS_STATS2 |
| 296 | unsigned long long time_writes; |
| 297 | unsigned long long time_reads; |
| 298 | unsigned long long time_opens; |
| 299 | unsigned long long time_deletes; |
| 300 | unsigned long long time_closes; |
| 301 | unsigned long long time_mkdirs; |
| 302 | unsigned long long time_rmdirs; |
| 303 | unsigned long long time_renames; |
| 304 | unsigned long long time_t2renames; |
| 305 | unsigned long long time_ffirst; |
| 306 | unsigned long long time_fnext; |
| 307 | unsigned long long time_fclose; |
| 308 | #endif /* CONFIG_CIFS_STATS2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | __u64 bytes_read; |
| 310 | __u64 bytes_written; |
| 311 | spinlock_t stat_lock; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 312 | #endif /* CONFIG_CIFS_STATS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | FILE_SYSTEM_DEVICE_INFO fsDevInfo; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 314 | FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | FILE_SYSTEM_UNIX_INFO fsUnixInfo; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 316 | bool ipc:1; /* set if connection to IPC$ eg for RPC/PIPES */ |
| 317 | bool retry:1; |
| 318 | bool nocase:1; |
Steve French | 95b1cb9 | 2008-05-15 16:44:38 +0000 | [diff] [blame] | 319 | bool seal:1; /* transport encryption for this mounted share */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 320 | bool unix_ext:1; /* if false disable Linux extensions to CIFS protocol |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 321 | for this mount even if server would support */ |
Steve French | 84210e9 | 2008-10-23 04:42:37 +0000 | [diff] [blame] | 322 | bool local_lease:1; /* check leases (only) on local system not remote */ |
Steve French | 64cc2c6 | 2009-03-04 19:54:08 +0000 | [diff] [blame] | 323 | bool broken_posix_open; /* e.g. Samba server versions < 3.3.2, 3.2.9 */ |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 324 | bool need_reconnect:1; /* connection reset, tid now invalid */ |
Suresh Jayaraman | d03382c | 2010-07-05 18:12:27 +0530 | [diff] [blame] | 325 | #ifdef CONFIG_CIFS_FSCACHE |
| 326 | u64 resource_id; /* server resource id */ |
| 327 | struct fscache_cookie *fscache; /* cookie for share */ |
| 328 | #endif |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 329 | /* BB add field for back pointer to sb struct(s)? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | }; |
| 331 | |
| 332 | /* |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 333 | * This is a refcounted and timestamped container for a tcon pointer. The |
| 334 | * container holds a tcon reference. It is considered safe to free one of |
| 335 | * these when the tl_count goes to 0. The tl_time is the time of the last |
| 336 | * "get" on the container. |
| 337 | */ |
| 338 | struct tcon_link { |
Jeff Layton | b647c35 | 2010-10-28 11:16:44 -0400 | [diff] [blame] | 339 | struct rb_node tl_rbnode; |
| 340 | uid_t tl_uid; |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 341 | unsigned long tl_flags; |
| 342 | #define TCON_LINK_MASTER 0 |
| 343 | #define TCON_LINK_PENDING 1 |
| 344 | #define TCON_LINK_IN_TREE 2 |
| 345 | unsigned long tl_time; |
| 346 | atomic_t tl_count; |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 347 | struct cifsTconInfo *tl_tcon; |
| 348 | }; |
| 349 | |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 350 | 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] | 351 | |
| 352 | static inline struct cifsTconInfo * |
| 353 | tlink_tcon(struct tcon_link *tlink) |
| 354 | { |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 355 | return tlink->tl_tcon; |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 356 | } |
| 357 | |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 358 | extern void cifs_put_tlink(struct tcon_link *tlink); |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 359 | |
Jeff Layton | 13cfb73 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 360 | static inline struct tcon_link * |
| 361 | cifs_get_tlink(struct tcon_link *tlink) |
| 362 | { |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 363 | if (tlink && !IS_ERR(tlink)) |
| 364 | atomic_inc(&tlink->tl_count); |
Jeff Layton | 13cfb73 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 365 | return tlink; |
| 366 | } |
| 367 | |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 368 | /* This function is always expected to succeed */ |
Jeff Layton | 9d002df | 2010-10-06 19:51:11 -0400 | [diff] [blame] | 369 | extern struct cifsTconInfo *cifs_sb_master_tcon(struct cifs_sb_info *cifs_sb); |
Jeff Layton | 7ffec37 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 370 | |
| 371 | /* |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 372 | * This info hangs off the cifsFileInfo structure, pointed to by llist. |
| 373 | * This is used to track byte stream locks on the file |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | */ |
| 375 | struct cifsLockInfo { |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 376 | struct list_head llist; /* pointer to next cifsLockInfo */ |
| 377 | __u64 offset; |
| 378 | __u64 length; |
| 379 | __u8 type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | }; |
| 381 | |
| 382 | /* |
| 383 | * One of these for each open instance of a file |
| 384 | */ |
| 385 | struct cifs_search_info { |
| 386 | loff_t index_of_last_entry; |
| 387 | __u16 entries_in_buffer; |
| 388 | __u16 info_level; |
| 389 | __u32 resume_key; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 390 | char *ntwrk_buf_start; |
| 391 | char *srch_entries_start; |
Steve French | 0752f15 | 2008-10-07 20:03:33 +0000 | [diff] [blame] | 392 | char *last_entry; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 393 | char *presume_name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | unsigned int resume_name_len; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 395 | bool endOfSearch:1; |
| 396 | bool emptyDir:1; |
| 397 | bool unicode:1; |
| 398 | bool smallBuf:1; /* so we know which buf_release function to call */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | }; |
| 400 | |
| 401 | struct cifsFileInfo { |
| 402 | struct list_head tlist; /* pointer to next fid owned by tcon */ |
| 403 | struct list_head flist; /* next fid (file instance) for this inode */ |
| 404 | unsigned int uid; /* allows finding which FileInfo structure */ |
| 405 | __u32 pid; /* process id who opened file */ |
| 406 | __u16 netfid; /* file id from remote */ |
| 407 | /* BB add lock scope info here if needed */ ; |
| 408 | /* lock scope id (0 if none) */ |
Jeff Layton | a5e18bc | 2010-10-11 15:07:18 -0400 | [diff] [blame] | 409 | struct dentry *dentry; |
Jeff Layton | 1588617 | 2010-10-15 15:33:59 -0400 | [diff] [blame] | 410 | unsigned int f_flags; |
Jeff Layton | 13cfb73 | 2010-09-29 19:51:11 -0400 | [diff] [blame] | 411 | struct tcon_link *tlink; |
Roland Dreier | 796e566 | 2007-05-03 04:33:45 +0000 | [diff] [blame] | 412 | struct mutex lock_mutex; |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 413 | struct list_head llist; /* list of byte range locks we have. */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 414 | bool invalidHandle:1; /* file closed via session abend */ |
Jeff Layton | 3bc303c | 2009-09-21 06:47:50 -0400 | [diff] [blame] | 415 | bool oplock_break_cancelled:1; |
Steve French | 6c0f621 | 2010-10-23 16:51:40 +0000 | [diff] [blame] | 416 | int count; /* refcount protected by cifs_file_list_lock */ |
Steve French | a6ce493 | 2009-04-09 01:14:32 +0000 | [diff] [blame] | 417 | struct mutex fh_mutex; /* prevents reopen race after dead ses*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | struct cifs_search_info srch_inf; |
Tejun Heo | 9b64697 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 419 | struct work_struct oplock_break; /* work for oplock breaks */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | }; |
| 421 | |
Jeff Layton | 5f6dbc9 | 2010-10-15 15:34:06 -0400 | [diff] [blame] | 422 | /* |
| 423 | * Take a reference on the file private data. Must be called with |
| 424 | * cifs_file_list_lock held. |
| 425 | */ |
Dave Kleikamp | 6ab409b | 2009-08-31 11:07:12 -0400 | [diff] [blame] | 426 | static inline void cifsFileInfo_get(struct cifsFileInfo *cifs_file) |
| 427 | { |
Jeff Layton | 5f6dbc9 | 2010-10-15 15:34:06 -0400 | [diff] [blame] | 428 | ++cifs_file->count; |
Dave Kleikamp | 6ab409b | 2009-08-31 11:07:12 -0400 | [diff] [blame] | 429 | } |
| 430 | |
Jeff Layton | b33879a | 2010-10-15 15:34:04 -0400 | [diff] [blame] | 431 | void cifsFileInfo_put(struct cifsFileInfo *cifs_file); |
Dave Kleikamp | 6ab409b | 2009-08-31 11:07:12 -0400 | [diff] [blame] | 432 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 433 | /* |
| 434 | * One of these for each file inode |
| 435 | */ |
| 436 | |
| 437 | struct cifsInodeInfo { |
| 438 | struct list_head lockList; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 439 | /* 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] | 440 | struct list_head openFileList; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | unsigned long time; /* jiffies of last update/check of inode */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 443 | bool clientCanCacheRead:1; /* read oplock */ |
| 444 | bool clientCanCacheAll:1; /* read and writebehind oplock */ |
Jeff Layton | 9a8165f | 2008-10-17 21:03:20 -0400 | [diff] [blame] | 445 | bool delete_pending:1; /* DELETE_ON_CLOSE is set */ |
Jeff Layton | df2cf17 | 2010-02-12 07:44:16 -0500 | [diff] [blame] | 446 | bool invalid_mapping:1; /* pagecache is invalid */ |
Jeff Layton | fbec9ab | 2009-04-03 13:44:00 -0400 | [diff] [blame] | 447 | u64 server_eof; /* current file size on server */ |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 448 | u64 uniqueid; /* server inode number */ |
Suresh Jayaraman | 9451a9a | 2010-07-05 18:12:45 +0530 | [diff] [blame] | 449 | #ifdef CONFIG_CIFS_FSCACHE |
| 450 | struct fscache_cookie *fscache; |
| 451 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | struct inode vfs_inode; |
| 453 | }; |
| 454 | |
| 455 | static inline struct cifsInodeInfo * |
| 456 | CIFS_I(struct inode *inode) |
| 457 | { |
| 458 | return container_of(inode, struct cifsInodeInfo, vfs_inode); |
| 459 | } |
| 460 | |
| 461 | static inline struct cifs_sb_info * |
| 462 | CIFS_SB(struct super_block *sb) |
| 463 | { |
| 464 | return sb->s_fs_info; |
| 465 | } |
| 466 | |
Steve French | ab2f218 | 2005-09-15 20:44:50 -0700 | [diff] [blame] | 467 | 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] | 468 | { |
| 469 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) |
| 470 | return '/'; |
| 471 | else |
| 472 | return '\\'; |
| 473 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
Steve French | a4544347 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 475 | #ifdef CONFIG_CIFS_STATS |
| 476 | #define cifs_stats_inc atomic_inc |
| 477 | |
| 478 | static inline void cifs_stats_bytes_written(struct cifsTconInfo *tcon, |
| 479 | unsigned int bytes) |
| 480 | { |
| 481 | if (bytes) { |
| 482 | spin_lock(&tcon->stat_lock); |
| 483 | tcon->bytes_written += bytes; |
| 484 | spin_unlock(&tcon->stat_lock); |
| 485 | } |
| 486 | } |
| 487 | |
| 488 | static inline void cifs_stats_bytes_read(struct cifsTconInfo *tcon, |
| 489 | unsigned int bytes) |
| 490 | { |
| 491 | spin_lock(&tcon->stat_lock); |
| 492 | tcon->bytes_read += bytes; |
| 493 | spin_unlock(&tcon->stat_lock); |
| 494 | } |
| 495 | #else |
| 496 | |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 497 | #define cifs_stats_inc(field) do {} while (0) |
| 498 | #define cifs_stats_bytes_written(tcon, bytes) do {} while (0) |
| 499 | #define cifs_stats_bytes_read(tcon, bytes) do {} while (0) |
Steve French | a4544347 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 500 | |
| 501 | #endif |
| 502 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 503 | /* one of these for every pending CIFS request to the server */ |
| 504 | struct mid_q_entry { |
| 505 | struct list_head qhead; /* mids waiting on reply from this server */ |
| 506 | __u16 mid; /* multiplex id */ |
| 507 | __u16 pid; /* process id */ |
| 508 | __u32 sequence_number; /* for CIFS signing */ |
Steve French | 1047abc | 2005-10-11 19:58:06 -0700 | [diff] [blame] | 509 | unsigned long when_alloc; /* when mid was created */ |
| 510 | #ifdef CONFIG_CIFS_STATS2 |
| 511 | unsigned long when_sent; /* time when smb send finished */ |
| 512 | unsigned long when_received; /* when demux complete (taken off wire) */ |
| 513 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | struct task_struct *tsk; /* task waiting for response */ |
| 515 | struct smb_hdr *resp_buf; /* response buffer */ |
| 516 | int midState; /* wish this were enum but can not pass to wait_event */ |
Steve French | c81156d | 2005-04-28 22:41:07 -0700 | [diff] [blame] | 517 | __u8 command; /* smb command code */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 518 | bool largeBuf:1; /* if valid response, is pointer to large buf */ |
| 519 | bool multiRsp:1; /* multiple trans2 responses for one request */ |
| 520 | bool multiEnd:1; /* both received */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | }; |
| 522 | |
| 523 | struct oplock_q_entry { |
| 524 | struct list_head qhead; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 525 | struct inode *pinode; |
| 526 | struct cifsTconInfo *tcon; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | __u16 netfid; |
| 528 | }; |
| 529 | |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 530 | /* for pending dnotify requests */ |
| 531 | struct dir_notify_req { |
Steve French | 13cd4b7 | 2010-10-07 18:46:32 +0000 | [diff] [blame] | 532 | struct list_head lhead; |
| 533 | __le16 Pid; |
| 534 | __le16 PidHigh; |
| 535 | __u16 Mid; |
| 536 | __u16 Tid; |
| 537 | __u16 Uid; |
| 538 | __u16 netfid; |
| 539 | __u32 filter; /* CompletionFilter (for multishot) */ |
| 540 | int multishot; |
| 541 | struct file *pfile; |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 542 | }; |
| 543 | |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 544 | struct dfs_info3_param { |
| 545 | int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/ |
Igor Mammedov | 8aad018 | 2008-02-15 18:21:49 +0000 | [diff] [blame] | 546 | int path_consumed; |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 547 | int server_type; |
| 548 | int ref_flag; |
| 549 | char *path_name; |
| 550 | char *node_name; |
| 551 | }; |
| 552 | |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 553 | /* |
| 554 | * common struct for holding inode info when searching for or updating an |
| 555 | * inode with new info |
| 556 | */ |
| 557 | |
| 558 | #define CIFS_FATTR_DFS_REFERRAL 0x1 |
Jeff Layton | 0b8f18e | 2009-07-09 01:46:37 -0400 | [diff] [blame] | 559 | #define CIFS_FATTR_DELETE_PENDING 0x2 |
| 560 | #define CIFS_FATTR_NEED_REVAL 0x4 |
Jeff Layton | 3d69438 | 2010-05-11 14:59:55 -0400 | [diff] [blame] | 561 | #define CIFS_FATTR_INO_COLLISION 0x8 |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 562 | |
| 563 | struct cifs_fattr { |
| 564 | u32 cf_flags; |
| 565 | u32 cf_cifsattrs; |
| 566 | u64 cf_uniqueid; |
| 567 | u64 cf_eof; |
| 568 | u64 cf_bytes; |
| 569 | uid_t cf_uid; |
| 570 | gid_t cf_gid; |
| 571 | umode_t cf_mode; |
| 572 | dev_t cf_rdev; |
| 573 | unsigned int cf_nlink; |
| 574 | unsigned int cf_dtype; |
| 575 | struct timespec cf_atime; |
| 576 | struct timespec cf_mtime; |
| 577 | struct timespec cf_ctime; |
| 578 | }; |
| 579 | |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 580 | static inline void free_dfs_info_param(struct dfs_info3_param *param) |
| 581 | { |
| 582 | if (param) { |
| 583 | kfree(param->path_name); |
| 584 | kfree(param->node_name); |
| 585 | kfree(param); |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | static inline void free_dfs_info_array(struct dfs_info3_param *param, |
| 590 | int number_of_items) |
| 591 | { |
| 592 | int i; |
| 593 | if ((number_of_items == 0) || (param == NULL)) |
| 594 | return; |
| 595 | for (i = 0; i < number_of_items; i++) { |
| 596 | kfree(param[i].path_name); |
| 597 | kfree(param[i].node_name); |
| 598 | } |
| 599 | kfree(param); |
| 600 | } |
| 601 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | #define MID_FREE 0 |
| 603 | #define MID_REQUEST_ALLOCATED 1 |
| 604 | #define MID_REQUEST_SUBMITTED 2 |
| 605 | #define MID_RESPONSE_RECEIVED 4 |
| 606 | #define MID_RETRY_NEEDED 8 /* session closed while this request out */ |
| 607 | #define MID_NO_RESP_NEEDED 0x10 |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 608 | |
| 609 | /* Types of response buffer returned from SendReceive2 */ |
| 610 | #define CIFS_NO_BUFFER 0 /* Response buffer not returned */ |
| 611 | #define CIFS_SMALL_BUFFER 1 |
| 612 | #define CIFS_LARGE_BUFFER 2 |
| 613 | #define CIFS_IOVEC 4 /* array of response buffers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 614 | |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 615 | /* Type of Request to SendReceive2 */ |
| 616 | #define CIFS_STD_OP 0 /* normal request timeout */ |
| 617 | #define CIFS_LONG_OP 1 /* long op (up to 45 sec, oplock time) */ |
| 618 | #define CIFS_VLONG_OP 2 /* sloow op - can take up to 180 seconds */ |
| 619 | #define CIFS_BLOCKING_OP 4 /* operation can block */ |
| 620 | #define CIFS_ASYNC_OP 8 /* do not wait for response */ |
| 621 | #define CIFS_TIMEOUT_MASK 0x00F /* only one of 5 above set in req */ |
| 622 | #define CIFS_LOG_ERROR 0x010 /* log NT STATUS if non-zero */ |
| 623 | #define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */ |
| 624 | #define CIFS_NO_RESP 0x040 /* no response buffer required */ |
| 625 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 626 | /* Security Flags: indicate type of session setup needed */ |
| 627 | #define CIFSSEC_MAY_SIGN 0x00001 |
| 628 | #define CIFSSEC_MAY_NTLM 0x00002 |
| 629 | #define CIFSSEC_MAY_NTLMV2 0x00004 |
| 630 | #define CIFSSEC_MAY_KRB5 0x00008 |
| 631 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 632 | #define CIFSSEC_MAY_LANMAN 0x00010 |
| 633 | #define CIFSSEC_MAY_PLNTXT 0x00020 |
Steve French | 516897a | 2007-10-12 19:24:06 +0000 | [diff] [blame] | 634 | #else |
| 635 | #define CIFSSEC_MAY_LANMAN 0 |
| 636 | #define CIFSSEC_MAY_PLNTXT 0 |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 637 | #endif /* weak passwords */ |
| 638 | #define CIFSSEC_MAY_SEAL 0x00040 /* not supported yet */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 639 | #define CIFSSEC_MAY_NTLMSSP 0x00080 /* raw ntlmssp with ntlmv2 */ |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 640 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 641 | #define CIFSSEC_MUST_SIGN 0x01001 |
| 642 | /* note that only one of the following can be set so the |
| 643 | result of setting MUST flags more than once will be to |
| 644 | require use of the stronger protocol */ |
| 645 | #define CIFSSEC_MUST_NTLM 0x02002 |
| 646 | #define CIFSSEC_MUST_NTLMV2 0x04004 |
| 647 | #define CIFSSEC_MUST_KRB5 0x08008 |
| 648 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 649 | #define CIFSSEC_MUST_LANMAN 0x10010 |
| 650 | #define CIFSSEC_MUST_PLNTXT 0x20020 |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 651 | #ifdef CONFIG_CIFS_UPCALL |
Chuck Ebbert | 20d1752 | 2009-09-15 01:53:21 -0400 | [diff] [blame] | 652 | #define CIFSSEC_MASK 0xBF0BF /* allows weak security but also krb5 */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 653 | #else |
Chuck Ebbert | 20d1752 | 2009-09-15 01:53:21 -0400 | [diff] [blame] | 654 | #define CIFSSEC_MASK 0xB70B7 /* current flags supported if weak */ |
Steve French | 016ec75 | 2007-10-16 18:10:10 +0000 | [diff] [blame] | 655 | #endif /* UPCALL */ |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 656 | #else /* do not allow weak pw hash */ |
| 657 | #ifdef CONFIG_CIFS_UPCALL |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 658 | #define CIFSSEC_MASK 0x8F08F /* flags supported if no weak allowed */ |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 659 | #else |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 660 | #define CIFSSEC_MASK 0x87087 /* flags supported if no weak allowed */ |
Steve French | 016ec75 | 2007-10-16 18:10:10 +0000 | [diff] [blame] | 661 | #endif /* UPCALL */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 662 | #endif /* WEAK_PW_HASH */ |
| 663 | #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 664 | #define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 665 | |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 666 | #define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2) |
| 667 | #define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2) |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 668 | #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] | 669 | /* |
| 670 | ***************************************************************** |
| 671 | * All constants go here |
| 672 | ***************************************************************** |
| 673 | */ |
| 674 | |
| 675 | #define UID_HASH (16) |
| 676 | |
| 677 | /* |
| 678 | * Note that ONE module should define _DECLARE_GLOBALS_HERE to cause the |
| 679 | * following to be declared. |
| 680 | */ |
| 681 | |
| 682 | /**************************************************************************** |
| 683 | * Locking notes. All updates to global variables and lists should be |
| 684 | * protected by spinlocks or semaphores. |
| 685 | * |
| 686 | * Spinlocks |
| 687 | * --------- |
| 688 | * GlobalMid_Lock protects: |
| 689 | * list operations on pending_mid_q and oplockQ |
| 690 | * updates to XID counters, multiplex id and SMB sequence numbers |
Suresh Jayaraman | 6573e9b | 2010-10-18 23:52:18 +0530 | [diff] [blame] | 691 | * cifs_file_list_lock protects: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 692 | * list operations on tcp and SMB session lists and tCon lists |
| 693 | * f_owner.lock protects certain per file struct operations |
| 694 | * mapping->page_lock protects certain per page operations |
| 695 | * |
| 696 | * Semaphores |
| 697 | * ---------- |
| 698 | * sesSem operations on smb session |
| 699 | * tconSem operations on tree connection |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 700 | * fh_sem file handle reconnection operations |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | * |
| 702 | ****************************************************************************/ |
| 703 | |
| 704 | #ifdef DECLARE_GLOBALS_HERE |
| 705 | #define GLOBAL_EXTERN |
| 706 | #else |
| 707 | #define GLOBAL_EXTERN extern |
| 708 | #endif |
| 709 | |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 710 | /* |
| 711 | * the list of TCP_Server_Info structures, ie each of the sockets |
Steve French | fb39601 | 2008-11-13 20:04:07 +0000 | [diff] [blame] | 712 | * connecting our client to a distinct server (ip address), is |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 713 | * 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] | 714 | * sessions (and from that the tree connections) can be found |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 715 | * by iterating over cifs_tcp_ses_list |
| 716 | */ |
| 717 | GLOBAL_EXTERN struct list_head cifs_tcp_ses_list; |
| 718 | |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 719 | /* |
| 720 | * This lock protects the cifs_tcp_ses_list, the list of smb sessions per |
| 721 | * tcp session, and the list of tcon's per smb session. It also protects |
| 722 | * the reference counters for the server, smb session, and tcon. Finally, |
| 723 | * changes to the tcon->tidStatus should be done while holding this lock. |
| 724 | */ |
Suresh Jayaraman | 3f9bcca | 2010-10-18 23:29:37 +0530 | [diff] [blame] | 725 | GLOBAL_EXTERN spinlock_t cifs_tcp_ses_lock; |
Steve French | ddb4cbf | 2008-11-20 20:00:44 +0000 | [diff] [blame] | 726 | |
| 727 | /* |
| 728 | * This lock protects the cifs_file->llist and cifs_file->flist |
| 729 | * list operations, and updates to some flags (cifs_file->invalidHandle) |
| 730 | * It will be moved to either use the tcon->stat_lock or equivalent later. |
| 731 | * If cifs_tcp_ses_lock and the lock below are both needed to be held, then |
| 732 | * the cifs_tcp_ses_lock must be grabbed first and released last. |
| 733 | */ |
Jeff Layton | 4477288 | 2010-10-15 15:34:03 -0400 | [diff] [blame] | 734 | GLOBAL_EXTERN spinlock_t cifs_file_list_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 736 | /* Outstanding dir notify requests */ |
| 737 | GLOBAL_EXTERN struct list_head GlobalDnotifyReqList; |
| 738 | /* DirNotify response queue */ |
| 739 | GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q; |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 740 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 741 | /* |
| 742 | * Global transaction id (XID) information |
| 743 | */ |
| 744 | GLOBAL_EXTERN unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 745 | GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 746 | GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 747 | GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above & list operations */ |
| 748 | /* on midQ entries */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 749 | GLOBAL_EXTERN char Local_System_Name[15]; |
| 750 | |
| 751 | /* |
| 752 | * Global counters, updated atomically |
| 753 | */ |
| 754 | GLOBAL_EXTERN atomic_t sesInfoAllocCount; |
| 755 | GLOBAL_EXTERN atomic_t tconInfoAllocCount; |
| 756 | GLOBAL_EXTERN atomic_t tcpSesAllocCount; |
| 757 | GLOBAL_EXTERN atomic_t tcpSesReconnectCount; |
| 758 | GLOBAL_EXTERN atomic_t tconInfoReconnectCount; |
| 759 | |
Steve French | aaa9bbe | 2008-05-23 17:38:32 +0000 | [diff] [blame] | 760 | /* Various Debug counters */ |
Steve French | 4498eed5 | 2005-12-03 13:58:57 -0800 | [diff] [blame] | 761 | GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */ |
| 762 | #ifdef CONFIG_CIFS_STATS2 |
| 763 | GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */ |
| 764 | GLOBAL_EXTERN atomic_t totSmBufAllocCount; |
| 765 | #endif |
| 766 | GLOBAL_EXTERN atomic_t smBufAllocCount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 767 | GLOBAL_EXTERN atomic_t midCount; |
| 768 | |
| 769 | /* Misc globals */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 770 | GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | to be established on existing mount if we |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 772 | have the uid/password or Kerberos credential |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 773 | or equivalent for current user */ |
| 774 | GLOBAL_EXTERN unsigned int oplockEnabled; |
| 775 | GLOBAL_EXTERN unsigned int experimEnabled; |
| 776 | GLOBAL_EXTERN unsigned int lookupCacheEnabled; |
Jeff Layton | 04912d6 | 2010-04-24 07:57:45 -0400 | [diff] [blame] | 777 | GLOBAL_EXTERN unsigned int global_secflags; /* if on, session setup sent |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 778 | with more secure ntlmssp2 challenge/resp */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 779 | GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/ |
| 781 | GLOBAL_EXTERN unsigned int CIFSMaxBufSize; /* max size not including hdr */ |
| 782 | GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */ |
| 783 | GLOBAL_EXTERN unsigned int cifs_min_small; /* min size of small buf pool */ |
| 784 | GLOBAL_EXTERN unsigned int cifs_max_pending; /* MAX requests at once to server*/ |
| 785 | |
Tejun Heo | 9b64697 | 2010-07-20 22:09:02 +0200 | [diff] [blame] | 786 | void cifs_oplock_break(struct work_struct *work); |
| 787 | void cifs_oplock_break_get(struct cifsFileInfo *cfile); |
| 788 | void cifs_oplock_break_put(struct cifsFileInfo *cfile); |
Linus Torvalds | 3b7433b | 2010-08-07 12:42:58 -0700 | [diff] [blame] | 789 | |
Jeff Layton | 3bc303c | 2009-09-21 06:47:50 -0400 | [diff] [blame] | 790 | extern const struct slow_work_ops cifs_oplock_break_ops; |
Suresh Jayaraman | abd2e44 | 2010-06-22 20:52:50 +0530 | [diff] [blame] | 791 | |
| 792 | #endif /* _CIFS_GLOB_H */ |