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 | */ |
| 19 | #include <linux/in.h> |
| 20 | #include <linux/in6.h> |
| 21 | #include "cifs_fs_sb.h" |
Steve French | 442aa31 | 2007-09-24 20:25:46 +0000 | [diff] [blame] | 22 | #include "cifsacl.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | /* |
| 24 | * The sizes of various internal tables and strings |
| 25 | */ |
| 26 | #define MAX_UID_INFO 16 |
| 27 | #define MAX_SES_INFO 2 |
| 28 | #define MAX_TCON_INFO 4 |
| 29 | |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 30 | #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] | 31 | #define MAX_SERVER_SIZE 15 |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 32 | #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] | 33 | #define MAX_USERNAME_SIZE 32 /* 32 is to allow for 15 char names + null |
| 34 | termination then *2 for unicode versions */ |
| 35 | #define MAX_PASSWORD_SIZE 16 |
| 36 | |
| 37 | #define CIFS_MIN_RCV_POOL 4 |
| 38 | |
| 39 | /* |
| 40 | * MAX_REQ is the maximum number of requests that WE will send |
| 41 | * on one socket concurently. It also matches the most common |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 42 | * value of max multiplex returned by servers. We may |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 43 | * eventually want to use the negotiated value (in case |
| 44 | * future servers can handle more) when we are more confident that |
| 45 | * we will not have problems oveloading the socket with pending |
| 46 | * write data. |
| 47 | */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 48 | #define CIFS_MAX_REQ 50 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 50 | #define RFC1001_NAME_LEN 15 |
| 51 | #define RFC1001_NAME_LEN_WITH_NULL (RFC1001_NAME_LEN + 1) |
| 52 | |
| 53 | /* currently length of NIP6_FMT */ |
| 54 | #define SERVER_NAME_LENGTH 40 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 55 | #define SERVER_NAME_LEN_WITH_NULL (SERVER_NAME_LENGTH + 1) |
| 56 | |
| 57 | /* used to define string lengths for reversing unicode strings */ |
| 58 | /* (256+1)*2 = 514 */ |
| 59 | /* (max path length + 1 for null) * 2 for unicode */ |
| 60 | #define MAX_NAME 514 |
| 61 | |
| 62 | #include "cifspdu.h" |
| 63 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 64 | #ifndef XATTR_DOS_ATTRIB |
| 65 | #define XATTR_DOS_ATTRIB "user.DOSATTRIB" |
| 66 | #endif |
| 67 | |
| 68 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | * CIFS vfs client Status information (based on what we know.) |
| 70 | */ |
| 71 | |
| 72 | /* associated with each tcp and smb session */ |
| 73 | enum statusEnum { |
| 74 | CifsNew = 0, |
| 75 | CifsGood, |
| 76 | CifsExiting, |
| 77 | CifsNeedReconnect |
| 78 | }; |
| 79 | |
| 80 | enum securityEnum { |
Steve French | a013689 | 2007-10-04 20:05:09 +0000 | [diff] [blame] | 81 | PLAINTXT = 0, /* Legacy with Plaintext passwords */ |
| 82 | LANMAN, /* Legacy LANMAN auth */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 83 | NTLM, /* Legacy NTLM012 auth with NTLM hash */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | NTLMv2, /* Legacy NTLM auth with NTLMv2 hash */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 85 | RawNTLMSSP, /* NTLMSSP without SPNEGO, NTLMv2 hash */ |
Steve French | f46c723 | 2009-06-25 03:04:20 +0000 | [diff] [blame] | 86 | /* NTLMSSP, */ /* can use rawNTLMSSP instead of NTLMSSP via SPNEGO */ |
Steve French | c16fefa | 2008-08-19 19:35:33 +0000 | [diff] [blame] | 87 | Kerberos, /* Kerberos via SPNEGO */ |
| 88 | MSKerberos, /* MS Kerberos via SPNEGO */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | }; |
| 90 | |
| 91 | enum protocolEnum { |
Steve French | 3ec332e | 2008-11-14 03:35:10 +0000 | [diff] [blame] | 92 | TCP = 0, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | SCTP |
| 94 | /* Netbios frames protocol not supported at this time */ |
| 95 | }; |
| 96 | |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 97 | struct mac_key { |
| 98 | unsigned int len; |
| 99 | union { |
| 100 | char ntlm[CIFS_SESS_KEY_SIZE + 16]; |
Steve French | 2442421 | 2007-11-16 23:37:35 +0000 | [diff] [blame] | 101 | char krb5[CIFS_SESS_KEY_SIZE + 16]; /* BB: length correct? */ |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 102 | struct { |
| 103 | char key[16]; |
| 104 | struct ntlmv2_resp resp; |
| 105 | } ntlmv2; |
| 106 | } data; |
| 107 | }; |
| 108 | |
Steve French | 442aa31 | 2007-09-24 20:25:46 +0000 | [diff] [blame] | 109 | struct cifs_cred { |
| 110 | int uid; |
| 111 | int gid; |
| 112 | int mode; |
| 113 | int cecount; |
| 114 | struct cifs_sid osid; |
| 115 | struct cifs_sid gsid; |
| 116 | struct cifs_ntace *ntaces; |
| 117 | struct cifs_ace *aces; |
| 118 | }; |
| 119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | /* |
| 121 | ***************************************************************** |
| 122 | * Except the CIFS PDUs themselves all the |
| 123 | * globally interesting structs should go here |
| 124 | ***************************************************************** |
| 125 | */ |
| 126 | |
| 127 | struct TCP_Server_Info { |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 128 | struct list_head tcp_ses_list; |
| 129 | struct list_head smb_ses_list; |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 130 | int srv_count; /* reference counter */ |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 131 | /* 15 character server name + 0x20 16th byte indicating type = srv */ |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 132 | char server_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; |
Jeff Layton | c359cf3 | 2007-11-16 22:22:06 +0000 | [diff] [blame] | 133 | char *hostname; /* hostname portion of UNC string */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | struct socket *ssocket; |
| 135 | union { |
| 136 | struct sockaddr_in sockAddr; |
| 137 | struct sockaddr_in6 sockAddr6; |
| 138 | } addr; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 139 | wait_queue_head_t response_q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | wait_queue_head_t request_q; /* if more than maxmpx to srvr must block*/ |
| 141 | struct list_head pending_mid_q; |
| 142 | void *Server_NlsInfo; /* BB - placeholder for future NLS info */ |
| 143 | unsigned short server_codepage; /* codepage for the server */ |
Steve French | 131afd0 | 2005-10-07 09:51:05 -0700 | [diff] [blame] | 144 | unsigned long ip_address; /* IP addr for the server if known */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 145 | enum protocolEnum protocolType; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | char versionMajor; |
| 147 | char versionMinor; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 148 | bool svlocal:1; /* local server or remote */ |
Steve French | edf1ae4 | 2008-10-29 00:47:57 +0000 | [diff] [blame] | 149 | bool noblocksnd; /* use blocking sendmsg */ |
| 150 | bool noautotune; /* do not autotune send buf sizes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | atomic_t inFlight; /* number of requests on the wire to server */ |
Steve French | 131afd0 | 2005-10-07 09:51:05 -0700 | [diff] [blame] | 152 | #ifdef CONFIG_CIFS_STATS2 |
| 153 | atomic_t inSend; /* requests trying to send */ |
| 154 | atomic_t num_waiters; /* blocked waiting to get in sendrecv */ |
| 155 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | enum statusEnum tcpStatus; /* what we think the status is */ |
Jeff Layton | 72ca545 | 2008-12-01 07:09:36 -0500 | [diff] [blame] | 157 | struct mutex srv_mutex; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | struct task_struct *tsk; |
| 159 | char server_GUID[16]; |
| 160 | char secMode; |
| 161 | enum securityEnum secType; |
| 162 | unsigned int maxReq; /* Clients should submit no more */ |
| 163 | /* than maxReq distinct unanswered SMBs to the server when using */ |
| 164 | /* multiplexed reads or writes */ |
| 165 | unsigned int maxBuf; /* maxBuf specifies the maximum */ |
| 166 | /* message size the server can send or receive for non-raw SMBs */ |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 167 | unsigned int max_rw; /* maxRw specifies the maximum */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 168 | /* message size the server can send or receive for */ |
| 169 | /* SMB_COM_WRITE_RAW or SMB_COM_READ_RAW. */ |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 170 | unsigned int max_vcs; /* maximum number of smb sessions, at least |
| 171 | those that can be specified uniquely with |
| 172 | vcnumbers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | char sessid[4]; /* unique token id for this session */ |
| 174 | /* (returned on Negotiate */ |
| 175 | int capabilities; /* allow selective disabling of caps by smb sess */ |
Steve French | de7ed55 | 2006-09-30 13:25:52 +0000 | [diff] [blame] | 176 | int timeAdj; /* Adjust for difference in server time zone in sec */ |
Steve French | 1982c34 | 2005-08-17 12:38:22 -0700 | [diff] [blame] | 177 | __u16 CurrentMid; /* multiplex id - rotating counter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | char cryptKey[CIFS_CRYPTO_KEY_SIZE]; |
Steve French | a10faeb2 | 2005-08-22 21:38:31 -0700 | [diff] [blame] | 179 | /* 16th byte of RFC1001 workstation name is always null */ |
Jeff Layton | 8ecaf67 | 2008-12-01 15:23:50 -0500 | [diff] [blame] | 180 | char workstation_RFC1001_name[RFC1001_NAME_LEN_WITH_NULL]; |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 181 | __u32 sequence_number; /* needed for CIFS PDU signature */ |
Steve French | b609f06 | 2007-07-09 07:55:14 +0000 | [diff] [blame] | 182 | struct mac_key mac_signing_key; |
| 183 | char ntlmv2_hash[16]; |
Steve French | 3a5ff61 | 2006-07-14 22:37:11 +0000 | [diff] [blame] | 184 | unsigned long lstrp; /* when we got last response from this server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 185 | }; |
| 186 | |
| 187 | /* |
| 188 | * The following is our shortcut to user information. We surface the uid, |
| 189 | * and name. We always get the password on the fly in case it |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 190 | * has changed. We also hang a list of sessions owned by this user off here. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | */ |
| 192 | struct cifsUidInfo { |
| 193 | struct list_head userList; |
| 194 | struct list_head sessionList; /* SMB sessions for this user */ |
| 195 | uid_t linux_uid; |
| 196 | char user[MAX_USERNAME_SIZE + 1]; /* ascii name of user */ |
| 197 | /* BB may need ptr or callback for PAM or WinBind info */ |
| 198 | }; |
| 199 | |
| 200 | /* |
| 201 | * Session structure. One of these for each uid session with a particular host |
| 202 | */ |
| 203 | struct cifsSesInfo { |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 204 | struct list_head smb_ses_list; |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 205 | struct list_head tcon_list; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | struct semaphore sesSem; |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 207 | #if 0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | struct cifsUidInfo *uidInfo; /* pointer to user info */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 209 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | struct TCP_Server_Info *server; /* pointer to server info */ |
Jeff Layton | 14fbf50 | 2008-11-14 13:53:46 -0500 | [diff] [blame] | 211 | int ses_count; /* reference counter */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | enum statusEnum status; |
Steve French | 750d115 | 2006-06-27 06:28:30 +0000 | [diff] [blame] | 213 | unsigned overrideSecFlg; /* if non-zero override global sec flags */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 214 | __u16 ipc_tid; /* special tid for connection to IPC share */ |
| 215 | __u16 flags; |
Steve French | eca6acf | 2009-02-20 05:43:09 +0000 | [diff] [blame] | 216 | __u16 vcnum; |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 217 | char *serverOS; /* name of operating system underlying server */ |
| 218 | char *serverNOS; /* name of network operating system of server */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | char *serverDomain; /* security realm of server */ |
| 220 | int Suid; /* remote smb uid */ |
| 221 | uid_t linux_uid; /* local Linux uid */ |
| 222 | int capabilities; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 223 | char serverName[SERVER_NAME_LEN_WITH_NULL * 2]; /* BB make bigger for |
Steve French | ad009ac | 2005-04-28 22:41:05 -0700 | [diff] [blame] | 224 | TCP names - will ipv6 and sctp addresses fit? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 225 | char userName[MAX_USERNAME_SIZE + 1]; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 226 | char *domainName; |
| 227 | char *password; |
Steve French | 3b79521 | 2008-11-13 19:45:32 +0000 | [diff] [blame] | 228 | bool need_reconnect:1; /* connection reset, uid now invalid */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 229 | }; |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 230 | /* 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] | 231 | #define CIFS_SES_NT4 1 |
Steve French | 9ac00b7 | 2006-09-30 04:13:17 +0000 | [diff] [blame] | 232 | #define CIFS_SES_OS2 2 |
| 233 | #define CIFS_SES_W9X 4 |
| 234 | /* following flag is set for old servers such as OS2 (and Win95?) |
| 235 | which do not negotiate NTLM or POSIX dialects, but instead |
| 236 | negotiate one of the older LANMAN dialects */ |
| 237 | #define CIFS_SES_LANMAN 8 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | /* |
| 239 | * 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] | 240 | * session |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | */ |
| 242 | struct cifsTconInfo { |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 243 | struct list_head tcon_list; |
| 244 | int tc_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | struct list_head openFileList; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | struct cifsSesInfo *ses; /* pointer to session associated with */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 247 | char treeName[MAX_TREE_SIZE + 1]; /* UNC name of resource in ASCII */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | char *nativeFileSystem; |
Jeff Layton | 00e485b | 2008-12-05 20:41:21 -0500 | [diff] [blame] | 249 | char *password; /* for share-level security */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | __u16 tid; /* The 2 byte tree id */ |
| 251 | __u16 Flags; /* optional support bits */ |
| 252 | enum statusEnum tidStatus; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | #ifdef CONFIG_CIFS_STATS |
| 254 | atomic_t num_smbs_sent; |
| 255 | atomic_t num_writes; |
| 256 | atomic_t num_reads; |
Steve French | b298f22 | 2009-02-21 21:17:43 +0000 | [diff] [blame] | 257 | atomic_t num_flushes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | atomic_t num_oplock_brks; |
| 259 | atomic_t num_opens; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 260 | atomic_t num_closes; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | atomic_t num_deletes; |
| 262 | atomic_t num_mkdirs; |
| 263 | atomic_t num_rmdirs; |
| 264 | atomic_t num_renames; |
| 265 | atomic_t num_t2renames; |
Steve French | dfb7533 | 2005-06-22 17:13:47 -0700 | [diff] [blame] | 266 | atomic_t num_ffirst; |
| 267 | atomic_t num_fnext; |
| 268 | atomic_t num_fclose; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 269 | atomic_t num_hardlinks; |
| 270 | atomic_t num_symlinks; |
| 271 | atomic_t num_locks; |
Steve French | 0a4b92c | 2006-01-12 15:44:21 -0800 | [diff] [blame] | 272 | atomic_t num_acl_get; |
| 273 | atomic_t num_acl_set; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 274 | #ifdef CONFIG_CIFS_STATS2 |
| 275 | unsigned long long time_writes; |
| 276 | unsigned long long time_reads; |
| 277 | unsigned long long time_opens; |
| 278 | unsigned long long time_deletes; |
| 279 | unsigned long long time_closes; |
| 280 | unsigned long long time_mkdirs; |
| 281 | unsigned long long time_rmdirs; |
| 282 | unsigned long long time_renames; |
| 283 | unsigned long long time_t2renames; |
| 284 | unsigned long long time_ffirst; |
| 285 | unsigned long long time_fnext; |
| 286 | unsigned long long time_fclose; |
| 287 | #endif /* CONFIG_CIFS_STATS2 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | __u64 bytes_read; |
| 289 | __u64 bytes_written; |
| 290 | spinlock_t stat_lock; |
Steve French | a5a2b48 | 2005-08-20 21:42:53 -0700 | [diff] [blame] | 291 | #endif /* CONFIG_CIFS_STATS */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 292 | FILE_SYSTEM_DEVICE_INFO fsDevInfo; |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 293 | FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | FILE_SYSTEM_UNIX_INFO fsUnixInfo; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 295 | bool ipc:1; /* set if connection to IPC$ eg for RPC/PIPES */ |
| 296 | bool retry:1; |
| 297 | bool nocase:1; |
Steve French | 95b1cb9 | 2008-05-15 16:44:38 +0000 | [diff] [blame] | 298 | bool seal:1; /* transport encryption for this mounted share */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 299 | bool unix_ext:1; /* if false disable Linux extensions to CIFS protocol |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 300 | for this mount even if server would support */ |
Steve French | 84210e9 | 2008-10-23 04:42:37 +0000 | [diff] [blame] | 301 | bool local_lease:1; /* check leases (only) on local system not remote */ |
Steve French | 64cc2c6 | 2009-03-04 19:54:08 +0000 | [diff] [blame] | 302 | 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] | 303 | bool need_reconnect:1; /* connection reset, tid now invalid */ |
Steve French | c18c842 | 2007-07-18 23:21:09 +0000 | [diff] [blame] | 304 | /* BB add field for back pointer to sb struct(s)? */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | }; |
| 306 | |
| 307 | /* |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 308 | * This info hangs off the cifsFileInfo structure, pointed to by llist. |
| 309 | * This is used to track byte stream locks on the file |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | */ |
| 311 | struct cifsLockInfo { |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 312 | struct list_head llist; /* pointer to next cifsLockInfo */ |
| 313 | __u64 offset; |
| 314 | __u64 length; |
| 315 | __u8 type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | }; |
| 317 | |
| 318 | /* |
| 319 | * One of these for each open instance of a file |
| 320 | */ |
| 321 | struct cifs_search_info { |
| 322 | loff_t index_of_last_entry; |
| 323 | __u16 entries_in_buffer; |
| 324 | __u16 info_level; |
| 325 | __u32 resume_key; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 326 | char *ntwrk_buf_start; |
| 327 | char *srch_entries_start; |
Steve French | 0752f15 | 2008-10-07 20:03:33 +0000 | [diff] [blame] | 328 | char *last_entry; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 329 | char *presume_name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | unsigned int resume_name_len; |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 331 | bool endOfSearch:1; |
| 332 | bool emptyDir:1; |
| 333 | bool unicode:1; |
| 334 | bool smallBuf:1; /* so we know which buf_release function to call */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | }; |
| 336 | |
| 337 | struct cifsFileInfo { |
| 338 | struct list_head tlist; /* pointer to next fid owned by tcon */ |
| 339 | struct list_head flist; /* next fid (file instance) for this inode */ |
| 340 | unsigned int uid; /* allows finding which FileInfo structure */ |
| 341 | __u32 pid; /* process id who opened file */ |
| 342 | __u16 netfid; /* file id from remote */ |
| 343 | /* BB add lock scope info here if needed */ ; |
| 344 | /* lock scope id (0 if none) */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 345 | struct file *pfile; /* needed for writepage */ |
| 346 | struct inode *pInode; /* needed for oplock break */ |
Roland Dreier | 796e566 | 2007-05-03 04:33:45 +0000 | [diff] [blame] | 347 | struct mutex lock_mutex; |
Jeremy Allison | 7ee1af7 | 2006-08-02 21:56:33 +0000 | [diff] [blame] | 348 | struct list_head llist; /* list of byte range locks we have. */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 349 | bool closePend:1; /* file is marked to close */ |
| 350 | bool invalidHandle:1; /* file closed via session abend */ |
| 351 | bool messageMode:1; /* for pipes: message vs byte mode */ |
Steve French | 23e7dd7 | 2005-10-20 13:44:56 -0700 | [diff] [blame] | 352 | atomic_t wrtPending; /* handle in use - defer close */ |
Steve French | a6ce493 | 2009-04-09 01:14:32 +0000 | [diff] [blame] | 353 | struct mutex fh_mutex; /* prevents reopen race after dead ses*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | struct cifs_search_info srch_inf; |
| 355 | }; |
| 356 | |
| 357 | /* |
| 358 | * One of these for each file inode |
| 359 | */ |
| 360 | |
| 361 | struct cifsInodeInfo { |
| 362 | struct list_head lockList; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 363 | /* 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] | 364 | struct list_head openFileList; |
| 365 | int write_behind_rc; |
| 366 | __u32 cifsAttrs; /* e.g. DOS archive bit, sparse, compressed, system */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | unsigned long time; /* jiffies of last update/check of inode */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 368 | bool clientCanCacheRead:1; /* read oplock */ |
| 369 | bool clientCanCacheAll:1; /* read and writebehind oplock */ |
| 370 | bool oplockPending:1; |
Jeff Layton | 9a8165f | 2008-10-17 21:03:20 -0400 | [diff] [blame] | 371 | bool delete_pending:1; /* DELETE_ON_CLOSE is set */ |
Jeff Layton | fbec9ab | 2009-04-03 13:44:00 -0400 | [diff] [blame] | 372 | u64 server_eof; /* current file size on server */ |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 373 | u64 uniqueid; /* server inode number */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 374 | struct inode vfs_inode; |
| 375 | }; |
| 376 | |
| 377 | static inline struct cifsInodeInfo * |
| 378 | CIFS_I(struct inode *inode) |
| 379 | { |
| 380 | return container_of(inode, struct cifsInodeInfo, vfs_inode); |
| 381 | } |
| 382 | |
| 383 | static inline struct cifs_sb_info * |
| 384 | CIFS_SB(struct super_block *sb) |
| 385 | { |
| 386 | return sb->s_fs_info; |
| 387 | } |
| 388 | |
Steve French | ab2f218 | 2005-09-15 20:44:50 -0700 | [diff] [blame] | 389 | 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] | 390 | { |
| 391 | if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_POSIX_PATHS) |
| 392 | return '/'; |
| 393 | else |
| 394 | return '\\'; |
| 395 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 397 | #ifdef CONFIG_CIFS_STATS |
| 398 | #define cifs_stats_inc atomic_inc |
| 399 | |
| 400 | static inline void cifs_stats_bytes_written(struct cifsTconInfo *tcon, |
| 401 | unsigned int bytes) |
| 402 | { |
| 403 | if (bytes) { |
| 404 | spin_lock(&tcon->stat_lock); |
| 405 | tcon->bytes_written += bytes; |
| 406 | spin_unlock(&tcon->stat_lock); |
| 407 | } |
| 408 | } |
| 409 | |
| 410 | static inline void cifs_stats_bytes_read(struct cifsTconInfo *tcon, |
| 411 | unsigned int bytes) |
| 412 | { |
| 413 | spin_lock(&tcon->stat_lock); |
| 414 | tcon->bytes_read += bytes; |
| 415 | spin_unlock(&tcon->stat_lock); |
| 416 | } |
| 417 | #else |
| 418 | |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 419 | #define cifs_stats_inc(field) do {} while (0) |
| 420 | #define cifs_stats_bytes_written(tcon, bytes) do {} while (0) |
| 421 | #define cifs_stats_bytes_read(tcon, bytes) do {} while (0) |
Steve French | a454434 | 2005-08-24 13:59:35 -0700 | [diff] [blame] | 422 | |
| 423 | #endif |
| 424 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | /* one of these for every pending CIFS request to the server */ |
| 426 | struct mid_q_entry { |
| 427 | struct list_head qhead; /* mids waiting on reply from this server */ |
| 428 | __u16 mid; /* multiplex id */ |
| 429 | __u16 pid; /* process id */ |
| 430 | __u32 sequence_number; /* for CIFS signing */ |
Steve French | 1047abc | 2005-10-11 19:58:06 -0700 | [diff] [blame] | 431 | unsigned long when_alloc; /* when mid was created */ |
| 432 | #ifdef CONFIG_CIFS_STATS2 |
| 433 | unsigned long when_sent; /* time when smb send finished */ |
| 434 | unsigned long when_received; /* when demux complete (taken off wire) */ |
| 435 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 436 | struct task_struct *tsk; /* task waiting for response */ |
| 437 | struct smb_hdr *resp_buf; /* response buffer */ |
| 438 | 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] | 439 | __u8 command; /* smb command code */ |
Steve French | 4b18f2a | 2008-04-29 00:06:05 +0000 | [diff] [blame] | 440 | bool largeBuf:1; /* if valid response, is pointer to large buf */ |
| 441 | bool multiRsp:1; /* multiple trans2 responses for one request */ |
| 442 | bool multiEnd:1; /* both received */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | }; |
| 444 | |
| 445 | struct oplock_q_entry { |
| 446 | struct list_head qhead; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 447 | struct inode *pinode; |
| 448 | struct cifsTconInfo *tcon; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | __u16 netfid; |
| 450 | }; |
| 451 | |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 452 | /* for pending dnotify requests */ |
| 453 | struct dir_notify_req { |
| 454 | struct list_head lhead; |
| 455 | __le16 Pid; |
| 456 | __le16 PidHigh; |
| 457 | __u16 Mid; |
| 458 | __u16 Tid; |
| 459 | __u16 Uid; |
| 460 | __u16 netfid; |
| 461 | __u32 filter; /* CompletionFilter (for multishot) */ |
| 462 | int multishot; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 463 | struct file *pfile; |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 464 | }; |
| 465 | |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 466 | struct dfs_info3_param { |
| 467 | int flags; /* DFSREF_REFERRAL_SERVER, DFSREF_STORAGE_SERVER*/ |
Igor Mammedov | 8aad018 | 2008-02-15 18:21:49 +0000 | [diff] [blame] | 468 | int path_consumed; |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 469 | int server_type; |
| 470 | int ref_flag; |
| 471 | char *path_name; |
| 472 | char *node_name; |
| 473 | }; |
| 474 | |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 475 | /* |
| 476 | * common struct for holding inode info when searching for or updating an |
| 477 | * inode with new info |
| 478 | */ |
| 479 | |
| 480 | #define CIFS_FATTR_DFS_REFERRAL 0x1 |
Jeff Layton | 0b8f18e | 2009-07-09 01:46:37 -0400 | [diff] [blame] | 481 | #define CIFS_FATTR_DELETE_PENDING 0x2 |
| 482 | #define CIFS_FATTR_NEED_REVAL 0x4 |
Jeff Layton | cc0bad7 | 2009-06-25 00:56:52 -0400 | [diff] [blame] | 483 | |
| 484 | struct cifs_fattr { |
| 485 | u32 cf_flags; |
| 486 | u32 cf_cifsattrs; |
| 487 | u64 cf_uniqueid; |
| 488 | u64 cf_eof; |
| 489 | u64 cf_bytes; |
| 490 | uid_t cf_uid; |
| 491 | gid_t cf_gid; |
| 492 | umode_t cf_mode; |
| 493 | dev_t cf_rdev; |
| 494 | unsigned int cf_nlink; |
| 495 | unsigned int cf_dtype; |
| 496 | struct timespec cf_atime; |
| 497 | struct timespec cf_mtime; |
| 498 | struct timespec cf_ctime; |
| 499 | }; |
| 500 | |
Steve French | 366781c | 2008-01-25 10:12:41 +0000 | [diff] [blame] | 501 | static inline void free_dfs_info_param(struct dfs_info3_param *param) |
| 502 | { |
| 503 | if (param) { |
| 504 | kfree(param->path_name); |
| 505 | kfree(param->node_name); |
| 506 | kfree(param); |
| 507 | } |
| 508 | } |
| 509 | |
| 510 | static inline void free_dfs_info_array(struct dfs_info3_param *param, |
| 511 | int number_of_items) |
| 512 | { |
| 513 | int i; |
| 514 | if ((number_of_items == 0) || (param == NULL)) |
| 515 | return; |
| 516 | for (i = 0; i < number_of_items; i++) { |
| 517 | kfree(param[i].path_name); |
| 518 | kfree(param[i].node_name); |
| 519 | } |
| 520 | kfree(param); |
| 521 | } |
| 522 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | #define MID_FREE 0 |
| 524 | #define MID_REQUEST_ALLOCATED 1 |
| 525 | #define MID_REQUEST_SUBMITTED 2 |
| 526 | #define MID_RESPONSE_RECEIVED 4 |
| 527 | #define MID_RETRY_NEEDED 8 /* session closed while this request out */ |
| 528 | #define MID_NO_RESP_NEEDED 0x10 |
Steve French | ec637e3 | 2005-12-12 20:53:18 -0800 | [diff] [blame] | 529 | |
| 530 | /* Types of response buffer returned from SendReceive2 */ |
| 531 | #define CIFS_NO_BUFFER 0 /* Response buffer not returned */ |
| 532 | #define CIFS_SMALL_BUFFER 1 |
| 533 | #define CIFS_LARGE_BUFFER 2 |
| 534 | #define CIFS_IOVEC 4 /* array of response buffers */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | |
Steve French | 133672e | 2007-11-13 22:41:37 +0000 | [diff] [blame] | 536 | /* Type of Request to SendReceive2 */ |
| 537 | #define CIFS_STD_OP 0 /* normal request timeout */ |
| 538 | #define CIFS_LONG_OP 1 /* long op (up to 45 sec, oplock time) */ |
| 539 | #define CIFS_VLONG_OP 2 /* sloow op - can take up to 180 seconds */ |
| 540 | #define CIFS_BLOCKING_OP 4 /* operation can block */ |
| 541 | #define CIFS_ASYNC_OP 8 /* do not wait for response */ |
| 542 | #define CIFS_TIMEOUT_MASK 0x00F /* only one of 5 above set in req */ |
| 543 | #define CIFS_LOG_ERROR 0x010 /* log NT STATUS if non-zero */ |
| 544 | #define CIFS_LARGE_BUF_OP 0x020 /* large request buffer */ |
| 545 | #define CIFS_NO_RESP 0x040 /* no response buffer required */ |
| 546 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 547 | /* Security Flags: indicate type of session setup needed */ |
| 548 | #define CIFSSEC_MAY_SIGN 0x00001 |
| 549 | #define CIFSSEC_MAY_NTLM 0x00002 |
| 550 | #define CIFSSEC_MAY_NTLMV2 0x00004 |
| 551 | #define CIFSSEC_MAY_KRB5 0x00008 |
| 552 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 553 | #define CIFSSEC_MAY_LANMAN 0x00010 |
| 554 | #define CIFSSEC_MAY_PLNTXT 0x00020 |
Steve French | 516897a | 2007-10-12 19:24:06 +0000 | [diff] [blame] | 555 | #else |
| 556 | #define CIFSSEC_MAY_LANMAN 0 |
| 557 | #define CIFSSEC_MAY_PLNTXT 0 |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 558 | #endif /* weak passwords */ |
| 559 | #define CIFSSEC_MAY_SEAL 0x00040 /* not supported yet */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 560 | #define CIFSSEC_MAY_NTLMSSP 0x00080 /* raw ntlmssp with ntlmv2 */ |
Steve French | 5815449d | 2006-02-14 01:36:20 +0000 | [diff] [blame] | 561 | |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 562 | #define CIFSSEC_MUST_SIGN 0x01001 |
| 563 | /* note that only one of the following can be set so the |
| 564 | result of setting MUST flags more than once will be to |
| 565 | require use of the stronger protocol */ |
| 566 | #define CIFSSEC_MUST_NTLM 0x02002 |
| 567 | #define CIFSSEC_MUST_NTLMV2 0x04004 |
| 568 | #define CIFSSEC_MUST_KRB5 0x08008 |
| 569 | #ifdef CONFIG_CIFS_WEAK_PW_HASH |
| 570 | #define CIFSSEC_MUST_LANMAN 0x10010 |
| 571 | #define CIFSSEC_MUST_PLNTXT 0x20020 |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 572 | #ifdef CONFIG_CIFS_UPCALL |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 573 | #define CIFSSEC_MASK 0xAF0AF /* allows weak security but also krb5 */ |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 574 | #else |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 575 | #define CIFSSEC_MASK 0xA70A7 /* current flags supported if weak */ |
Steve French | 016ec75 | 2007-10-16 18:10:10 +0000 | [diff] [blame] | 576 | #endif /* UPCALL */ |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 577 | #else /* do not allow weak pw hash */ |
| 578 | #ifdef CONFIG_CIFS_UPCALL |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 579 | #define CIFSSEC_MASK 0x8F08F /* flags supported if no weak allowed */ |
Jeff Layton | 0d3a01f | 2007-10-16 17:32:19 +0000 | [diff] [blame] | 580 | #else |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 581 | #define CIFSSEC_MASK 0x87087 /* flags supported if no weak allowed */ |
Steve French | 016ec75 | 2007-10-16 18:10:10 +0000 | [diff] [blame] | 582 | #endif /* UPCALL */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 583 | #endif /* WEAK_PW_HASH */ |
| 584 | #define CIFSSEC_MUST_SEAL 0x40040 /* not supported yet */ |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 585 | #define CIFSSEC_MUST_NTLMSSP 0x80080 /* raw ntlmssp with ntlmv2 */ |
Steve French | 3979877 | 2006-05-31 22:40:51 +0000 | [diff] [blame] | 586 | |
Shirish Pargaonkar | ef571ca | 2008-07-24 15:56:05 +0000 | [diff] [blame] | 587 | #define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM | CIFSSEC_MAY_NTLMV2) |
| 588 | #define CIFSSEC_MAX (CIFSSEC_MUST_SIGN | CIFSSEC_MUST_NTLMV2) |
Steve French | ac68392 | 2009-05-06 04:16:04 +0000 | [diff] [blame] | 589 | #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] | 590 | /* |
| 591 | ***************************************************************** |
| 592 | * All constants go here |
| 593 | ***************************************************************** |
| 594 | */ |
| 595 | |
| 596 | #define UID_HASH (16) |
| 597 | |
| 598 | /* |
| 599 | * Note that ONE module should define _DECLARE_GLOBALS_HERE to cause the |
| 600 | * following to be declared. |
| 601 | */ |
| 602 | |
| 603 | /**************************************************************************** |
| 604 | * Locking notes. All updates to global variables and lists should be |
| 605 | * protected by spinlocks or semaphores. |
| 606 | * |
| 607 | * Spinlocks |
| 608 | * --------- |
| 609 | * GlobalMid_Lock protects: |
| 610 | * list operations on pending_mid_q and oplockQ |
| 611 | * updates to XID counters, multiplex id and SMB sequence numbers |
| 612 | * GlobalSMBSesLock protects: |
| 613 | * list operations on tcp and SMB session lists and tCon lists |
| 614 | * f_owner.lock protects certain per file struct operations |
| 615 | * mapping->page_lock protects certain per page operations |
| 616 | * |
| 617 | * Semaphores |
| 618 | * ---------- |
| 619 | * sesSem operations on smb session |
| 620 | * tconSem operations on tree connection |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 621 | * fh_sem file handle reconnection operations |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | * |
| 623 | ****************************************************************************/ |
| 624 | |
| 625 | #ifdef DECLARE_GLOBALS_HERE |
| 626 | #define GLOBAL_EXTERN |
| 627 | #else |
| 628 | #define GLOBAL_EXTERN extern |
| 629 | #endif |
| 630 | |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 631 | /* |
| 632 | * the list of TCP_Server_Info structures, ie each of the sockets |
Steve French | fb39601 | 2008-11-13 20:04:07 +0000 | [diff] [blame] | 633 | * connecting our client to a distinct server (ip address), is |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 634 | * 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] | 635 | * sessions (and from that the tree connections) can be found |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 636 | * by iterating over cifs_tcp_ses_list |
| 637 | */ |
| 638 | GLOBAL_EXTERN struct list_head cifs_tcp_ses_list; |
| 639 | |
Jeff Layton | f1987b4 | 2008-11-15 11:12:47 -0500 | [diff] [blame] | 640 | /* |
| 641 | * This lock protects the cifs_tcp_ses_list, the list of smb sessions per |
| 642 | * tcp session, and the list of tcon's per smb session. It also protects |
| 643 | * the reference counters for the server, smb session, and tcon. Finally, |
| 644 | * changes to the tcon->tidStatus should be done while holding this lock. |
| 645 | */ |
Jeff Layton | e7ddee9 | 2008-11-14 13:44:38 -0500 | [diff] [blame] | 646 | GLOBAL_EXTERN rwlock_t cifs_tcp_ses_lock; |
Steve French | ddb4cbf | 2008-11-20 20:00:44 +0000 | [diff] [blame] | 647 | |
| 648 | /* |
| 649 | * This lock protects the cifs_file->llist and cifs_file->flist |
| 650 | * list operations, and updates to some flags (cifs_file->invalidHandle) |
| 651 | * It will be moved to either use the tcon->stat_lock or equivalent later. |
| 652 | * If cifs_tcp_ses_lock and the lock below are both needed to be held, then |
| 653 | * the cifs_tcp_ses_lock must be grabbed first and released last. |
| 654 | */ |
| 655 | GLOBAL_EXTERN rwlock_t GlobalSMBSeslock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 656 | |
| 657 | GLOBAL_EXTERN struct list_head GlobalOplock_Q; |
| 658 | |
Steve French | 99ee4db | 2007-02-27 05:35:17 +0000 | [diff] [blame] | 659 | /* Outstanding dir notify requests */ |
| 660 | GLOBAL_EXTERN struct list_head GlobalDnotifyReqList; |
| 661 | /* DirNotify response queue */ |
| 662 | GLOBAL_EXTERN struct list_head GlobalDnotifyRsp_Q; |
Steve French | ff5dbd9 | 2005-08-24 17:10:36 -0700 | [diff] [blame] | 663 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | /* |
| 665 | * Global transaction id (XID) information |
| 666 | */ |
| 667 | GLOBAL_EXTERN unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 668 | GLOBAL_EXTERN unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | GLOBAL_EXTERN unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 670 | GLOBAL_EXTERN spinlock_t GlobalMid_Lock; /* protects above & list operations */ |
| 671 | /* on midQ entries */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | GLOBAL_EXTERN char Local_System_Name[15]; |
| 673 | |
| 674 | /* |
| 675 | * Global counters, updated atomically |
| 676 | */ |
| 677 | GLOBAL_EXTERN atomic_t sesInfoAllocCount; |
| 678 | GLOBAL_EXTERN atomic_t tconInfoAllocCount; |
| 679 | GLOBAL_EXTERN atomic_t tcpSesAllocCount; |
| 680 | GLOBAL_EXTERN atomic_t tcpSesReconnectCount; |
| 681 | GLOBAL_EXTERN atomic_t tconInfoReconnectCount; |
| 682 | |
Steve French | aaa9bbe | 2008-05-23 17:38:32 +0000 | [diff] [blame] | 683 | /* Various Debug counters */ |
Steve French | 4498eed | 2005-12-03 13:58:57 -0800 | [diff] [blame] | 684 | GLOBAL_EXTERN atomic_t bufAllocCount; /* current number allocated */ |
| 685 | #ifdef CONFIG_CIFS_STATS2 |
| 686 | GLOBAL_EXTERN atomic_t totBufAllocCount; /* total allocated over all time */ |
| 687 | GLOBAL_EXTERN atomic_t totSmBufAllocCount; |
| 688 | #endif |
| 689 | GLOBAL_EXTERN atomic_t smBufAllocCount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | GLOBAL_EXTERN atomic_t midCount; |
| 691 | |
| 692 | /* Misc globals */ |
Steve French | 254e55e | 2006-06-04 05:53:15 +0000 | [diff] [blame] | 693 | GLOBAL_EXTERN unsigned int multiuser_mount; /* if enabled allows new sessions |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | to be established on existing mount if we |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 695 | have the uid/password or Kerberos credential |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | or equivalent for current user */ |
| 697 | GLOBAL_EXTERN unsigned int oplockEnabled; |
| 698 | GLOBAL_EXTERN unsigned int experimEnabled; |
| 699 | GLOBAL_EXTERN unsigned int lookupCacheEnabled; |
Steve French | d38d8c7 | 2007-06-28 19:44:13 +0000 | [diff] [blame] | 700 | GLOBAL_EXTERN unsigned int extended_security; /* if on, session setup sent |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 701 | with more secure ntlmssp2 challenge/resp */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 702 | GLOBAL_EXTERN unsigned int sign_CIFS_PDUs; /* enable smb packet signing */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 703 | GLOBAL_EXTERN unsigned int linuxExtEnabled;/*enable Linux/Unix CIFS extensions*/ |
| 704 | GLOBAL_EXTERN unsigned int CIFSMaxBufSize; /* max size not including hdr */ |
| 705 | GLOBAL_EXTERN unsigned int cifs_min_rcv; /* min size of big ntwrk buf pool */ |
| 706 | GLOBAL_EXTERN unsigned int cifs_min_small; /* min size of small buf pool */ |
| 707 | GLOBAL_EXTERN unsigned int cifs_max_pending; /* MAX requests at once to server*/ |
| 708 | |