Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/linux/nfsd/nfsd.h |
| 3 | * |
| 4 | * Hodge-podge collection of knfsd-related stuff. |
| 5 | * I will sort this out later. |
| 6 | * |
| 7 | * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> |
| 8 | */ |
| 9 | |
| 10 | #ifndef LINUX_NFSD_NFSD_H |
| 11 | #define LINUX_NFSD_NFSD_H |
| 12 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/types.h> |
| 14 | #include <linux/unistd.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | #include <linux/fs.h> |
Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 16 | #include <linux/posix_acl.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | #include <linux/mount.h> |
| 18 | |
| 19 | #include <linux/nfsd/debug.h> |
| 20 | #include <linux/nfsd/nfsfh.h> |
| 21 | #include <linux/nfsd/export.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/nfsd/stats.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | /* |
| 24 | * nfsd version |
| 25 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #define NFSD_SUPPORTED_MINOR_VERSION 0 |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | /* |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 29 | * Flags for nfsd_permission |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | */ |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 31 | #define NFSD_MAY_NOP 0 |
| 32 | #define NFSD_MAY_EXEC 1 /* == MAY_EXEC */ |
| 33 | #define NFSD_MAY_WRITE 2 /* == MAY_WRITE */ |
| 34 | #define NFSD_MAY_READ 4 /* == MAY_READ */ |
| 35 | #define NFSD_MAY_SATTR 8 |
| 36 | #define NFSD_MAY_TRUNC 16 |
| 37 | #define NFSD_MAY_LOCK 32 |
| 38 | #define NFSD_MAY_OWNER_OVERRIDE 64 |
| 39 | #define NFSD_MAY_LOCAL_ACCESS 128 /* IRIX doing local access check on device special file*/ |
J. Bruce Fields | 04716e6 | 2008-08-07 13:00:20 -0400 | [diff] [blame] | 40 | #define NFSD_MAY_BYPASS_GSS_ON_ROOT 256 |
Miklos Szeredi | 8837abc | 2008-06-16 13:20:29 +0200 | [diff] [blame] | 41 | |
| 42 | #define NFSD_MAY_CREATE (NFSD_MAY_EXEC|NFSD_MAY_WRITE) |
| 43 | #define NFSD_MAY_REMOVE (NFSD_MAY_EXEC|NFSD_MAY_WRITE|NFSD_MAY_TRUNC) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | /* |
| 46 | * Callback function for readdir |
| 47 | */ |
| 48 | struct readdir_cd { |
Al Viro | 131a21c | 2006-10-19 23:28:56 -0700 | [diff] [blame] | 49 | __be32 err; /* 0, nfserr, or nfserr_eof */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int); |
| 52 | |
| 53 | extern struct svc_program nfsd_program; |
| 54 | extern struct svc_version nfsd_version2, nfsd_version3, |
| 55 | nfsd_version4; |
Neil Brown | bedbdd8 | 2008-06-10 08:40:35 -0400 | [diff] [blame] | 56 | extern struct mutex nfsd_mutex; |
NeilBrown | 70c3b76 | 2005-11-07 01:00:25 -0800 | [diff] [blame] | 57 | extern struct svc_serv *nfsd_serv; |
Harvey Harrison | a254b24 | 2008-02-20 12:49:00 -0800 | [diff] [blame] | 58 | |
| 59 | extern struct seq_operations nfs_exports_op; |
| 60 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | /* |
| 62 | * Function prototypes. |
| 63 | */ |
| 64 | int nfsd_svc(unsigned short port, int nrservs); |
Al Viro | c7afef1 | 2006-10-19 23:29:02 -0700 | [diff] [blame] | 65 | int nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | |
Harvey Harrison | a254b24 | 2008-02-20 12:49:00 -0800 | [diff] [blame] | 67 | int nfsd_nrthreads(void); |
| 68 | int nfsd_nrpools(void); |
| 69 | int nfsd_get_nrthreads(int n, int *); |
| 70 | int nfsd_set_nrthreads(int n, int *); |
| 71 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | /* nfsd/vfs.c */ |
| 73 | int fh_lock_parent(struct svc_fh *, struct dentry *); |
| 74 | int nfsd_racache_init(int); |
| 75 | void nfsd_racache_shutdown(void); |
| 76 | int nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp, |
| 77 | struct svc_export **expp); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 78 | __be32 nfsd_lookup(struct svc_rqst *, struct svc_fh *, |
Chuck Lever | 5a022fc | 2007-11-01 16:57:09 -0400 | [diff] [blame] | 79 | const char *, unsigned int, struct svc_fh *); |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 80 | __be32 nfsd_lookup_dentry(struct svc_rqst *, struct svc_fh *, |
Chuck Lever | 5a022fc | 2007-11-01 16:57:09 -0400 | [diff] [blame] | 81 | const char *, unsigned int, |
Andy Adamson | dcb488a3 | 2007-07-17 04:04:51 -0700 | [diff] [blame] | 82 | struct svc_export **, struct dentry **); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 83 | __be32 nfsd_setattr(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | struct iattr *, int, time_t); |
| 85 | #ifdef CONFIG_NFSD_V4 |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 86 | __be32 nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | struct nfs4_acl *); |
| 88 | int nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **); |
| 89 | #endif /* CONFIG_NFSD_V4 */ |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 90 | __be32 nfsd_create(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | char *name, int len, struct iattr *attrs, |
| 92 | int type, dev_t rdev, struct svc_fh *res); |
| 93 | #ifdef CONFIG_NFSD_V3 |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 94 | __be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *); |
| 95 | __be32 nfsd_create_v3(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | char *name, int len, struct iattr *attrs, |
| 97 | struct svc_fh *res, int createmode, |
J. Bruce Fields | 81ac95c | 2006-11-08 17:44:40 -0800 | [diff] [blame] | 98 | u32 *verifier, int *truncp, int *created); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 99 | __be32 nfsd_commit(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | loff_t, unsigned long); |
| 101 | #endif /* CONFIG_NFSD_V3 */ |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 102 | __be32 nfsd_open(struct svc_rqst *, struct svc_fh *, int, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | int, struct file **); |
| 104 | void nfsd_close(struct file *); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 105 | __be32 nfsd_read(struct svc_rqst *, struct svc_fh *, struct file *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | loff_t, struct kvec *, int, unsigned long *); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 107 | __be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | loff_t, struct kvec *,int, unsigned long, int *); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 109 | __be32 nfsd_readlink(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | char *, int *); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 111 | __be32 nfsd_symlink(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | char *name, int len, char *path, int plen, |
| 113 | struct svc_fh *res, struct iattr *); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 114 | __be32 nfsd_link(struct svc_rqst *, struct svc_fh *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | char *, int, struct svc_fh *); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 116 | __be32 nfsd_rename(struct svc_rqst *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | struct svc_fh *, char *, int, |
| 118 | struct svc_fh *, char *, int); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 119 | __be32 nfsd_remove(struct svc_rqst *, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | struct svc_fh *, char *, int); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 121 | __be32 nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | char *name, int len); |
| 123 | int nfsd_truncate(struct svc_rqst *, struct svc_fh *, |
| 124 | unsigned long size); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 125 | __be32 nfsd_readdir(struct svc_rqst *, struct svc_fh *, |
NeilBrown | a0ad13e | 2007-01-26 00:57:10 -0800 | [diff] [blame] | 126 | loff_t *, struct readdir_cd *, filldir_t); |
Al Viro | 6264d69 | 2006-10-19 23:28:58 -0700 | [diff] [blame] | 127 | __be32 nfsd_statfs(struct svc_rqst *, struct svc_fh *, |
J. Bruce Fields | 04716e6 | 2008-08-07 13:00:20 -0400 | [diff] [blame] | 128 | struct kstatfs *, int access); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | |
| 130 | int nfsd_notify_change(struct inode *, struct iattr *); |
J. Bruce Fields | 0ec757d | 2007-07-17 04:04:48 -0700 | [diff] [blame] | 131 | __be32 nfsd_permission(struct svc_rqst *, struct svc_export *, |
| 132 | struct dentry *, int); |
YAMAMOTO Takashi | f193fba | 2006-01-18 17:43:13 -0800 | [diff] [blame] | 133 | int nfsd_sync_dir(struct dentry *dp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
Andreas Gruenbacher | a257cdd | 2005-06-22 17:16:26 +0000 | [diff] [blame] | 135 | #if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) |
| 136 | #ifdef CONFIG_NFSD_V2_ACL |
| 137 | extern struct svc_version nfsd_acl_version2; |
| 138 | #else |
| 139 | #define nfsd_acl_version2 NULL |
| 140 | #endif |
| 141 | #ifdef CONFIG_NFSD_V3_ACL |
| 142 | extern struct svc_version nfsd_acl_version3; |
| 143 | #else |
| 144 | #define nfsd_acl_version3 NULL |
| 145 | #endif |
| 146 | struct posix_acl *nfsd_get_posix_acl(struct svc_fh *, int); |
| 147 | int nfsd_set_posix_acl(struct svc_fh *, int, struct posix_acl *); |
| 148 | #endif |
| 149 | |
NeilBrown | 6658d3a | 2006-10-02 02:17:46 -0700 | [diff] [blame] | 150 | enum vers_op {NFSD_SET, NFSD_CLEAR, NFSD_TEST, NFSD_AVAIL }; |
| 151 | int nfsd_vers(int vers, enum vers_op change); |
| 152 | void nfsd_reset_versions(void); |
NeilBrown | b41b66d | 2006-10-02 02:17:48 -0700 | [diff] [blame] | 153 | int nfsd_create_serv(void); |
NeilBrown | 6658d3a | 2006-10-02 02:17:46 -0700 | [diff] [blame] | 154 | |
NeilBrown | 596bbe5 | 2006-10-04 02:15:48 -0700 | [diff] [blame] | 155 | extern int nfsd_max_blksize; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
| 157 | /* |
| 158 | * NFSv4 State |
| 159 | */ |
| 160 | #ifdef CONFIG_NFSD_V4 |
Meelap Shah | c2f1a55 | 2007-07-17 04:04:39 -0700 | [diff] [blame] | 161 | extern unsigned int max_delegations; |
J. Bruce Fields | e8ff2a8 | 2007-08-01 15:30:59 -0400 | [diff] [blame] | 162 | int nfs4_state_init(void); |
| 163 | void nfsd4_free_slabs(void); |
| 164 | void nfs4_state_start(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | void nfs4_state_shutdown(void); |
| 166 | time_t nfs4_lease_time(void); |
| 167 | void nfs4_reset_lease(time_t leasetime); |
NeilBrown | 0964a3d | 2005-06-23 22:04:32 -0700 | [diff] [blame] | 168 | int nfs4_reset_recoverydir(char *recdir); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | #else |
J. Bruce Fields | e8ff2a8 | 2007-08-01 15:30:59 -0400 | [diff] [blame] | 170 | static inline int nfs4_state_init(void) { return 0; } |
| 171 | static inline void nfsd4_free_slabs(void) { } |
| 172 | static inline void nfs4_state_start(void) { } |
| 173 | static inline void nfs4_state_shutdown(void) { } |
| 174 | static inline time_t nfs4_lease_time(void) { return 0; } |
| 175 | static inline void nfs4_reset_lease(time_t leasetime) { } |
| 176 | static inline int nfs4_reset_recoverydir(char *recdir) { return 0; } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | #endif |
| 178 | |
| 179 | /* |
| 180 | * lockd binding |
| 181 | */ |
| 182 | void nfsd_lockd_init(void); |
| 183 | void nfsd_lockd_shutdown(void); |
| 184 | |
| 185 | |
| 186 | /* |
| 187 | * These macros provide pre-xdr'ed values for faster operation. |
| 188 | */ |
Harvey Harrison | 77f18f5 | 2009-02-11 17:16:58 -0800 | [diff] [blame^] | 189 | #define nfs_ok cpu_to_be32(NFS_OK) |
| 190 | #define nfserr_perm cpu_to_be32(NFSERR_PERM) |
| 191 | #define nfserr_noent cpu_to_be32(NFSERR_NOENT) |
| 192 | #define nfserr_io cpu_to_be32(NFSERR_IO) |
| 193 | #define nfserr_nxio cpu_to_be32(NFSERR_NXIO) |
| 194 | #define nfserr_eagain cpu_to_be32(NFSERR_EAGAIN) |
| 195 | #define nfserr_acces cpu_to_be32(NFSERR_ACCES) |
| 196 | #define nfserr_exist cpu_to_be32(NFSERR_EXIST) |
| 197 | #define nfserr_xdev cpu_to_be32(NFSERR_XDEV) |
| 198 | #define nfserr_nodev cpu_to_be32(NFSERR_NODEV) |
| 199 | #define nfserr_notdir cpu_to_be32(NFSERR_NOTDIR) |
| 200 | #define nfserr_isdir cpu_to_be32(NFSERR_ISDIR) |
| 201 | #define nfserr_inval cpu_to_be32(NFSERR_INVAL) |
| 202 | #define nfserr_fbig cpu_to_be32(NFSERR_FBIG) |
| 203 | #define nfserr_nospc cpu_to_be32(NFSERR_NOSPC) |
| 204 | #define nfserr_rofs cpu_to_be32(NFSERR_ROFS) |
| 205 | #define nfserr_mlink cpu_to_be32(NFSERR_MLINK) |
| 206 | #define nfserr_opnotsupp cpu_to_be32(NFSERR_OPNOTSUPP) |
| 207 | #define nfserr_nametoolong cpu_to_be32(NFSERR_NAMETOOLONG) |
| 208 | #define nfserr_notempty cpu_to_be32(NFSERR_NOTEMPTY) |
| 209 | #define nfserr_dquot cpu_to_be32(NFSERR_DQUOT) |
| 210 | #define nfserr_stale cpu_to_be32(NFSERR_STALE) |
| 211 | #define nfserr_remote cpu_to_be32(NFSERR_REMOTE) |
| 212 | #define nfserr_wflush cpu_to_be32(NFSERR_WFLUSH) |
| 213 | #define nfserr_badhandle cpu_to_be32(NFSERR_BADHANDLE) |
| 214 | #define nfserr_notsync cpu_to_be32(NFSERR_NOT_SYNC) |
| 215 | #define nfserr_badcookie cpu_to_be32(NFSERR_BAD_COOKIE) |
| 216 | #define nfserr_notsupp cpu_to_be32(NFSERR_NOTSUPP) |
| 217 | #define nfserr_toosmall cpu_to_be32(NFSERR_TOOSMALL) |
| 218 | #define nfserr_serverfault cpu_to_be32(NFSERR_SERVERFAULT) |
| 219 | #define nfserr_badtype cpu_to_be32(NFSERR_BADTYPE) |
| 220 | #define nfserr_jukebox cpu_to_be32(NFSERR_JUKEBOX) |
| 221 | #define nfserr_denied cpu_to_be32(NFSERR_DENIED) |
| 222 | #define nfserr_deadlock cpu_to_be32(NFSERR_DEADLOCK) |
| 223 | #define nfserr_expired cpu_to_be32(NFSERR_EXPIRED) |
| 224 | #define nfserr_bad_cookie cpu_to_be32(NFSERR_BAD_COOKIE) |
| 225 | #define nfserr_same cpu_to_be32(NFSERR_SAME) |
| 226 | #define nfserr_clid_inuse cpu_to_be32(NFSERR_CLID_INUSE) |
| 227 | #define nfserr_stale_clientid cpu_to_be32(NFSERR_STALE_CLIENTID) |
| 228 | #define nfserr_resource cpu_to_be32(NFSERR_RESOURCE) |
| 229 | #define nfserr_moved cpu_to_be32(NFSERR_MOVED) |
| 230 | #define nfserr_nofilehandle cpu_to_be32(NFSERR_NOFILEHANDLE) |
| 231 | #define nfserr_minor_vers_mismatch cpu_to_be32(NFSERR_MINOR_VERS_MISMATCH) |
| 232 | #define nfserr_share_denied cpu_to_be32(NFSERR_SHARE_DENIED) |
| 233 | #define nfserr_stale_stateid cpu_to_be32(NFSERR_STALE_STATEID) |
| 234 | #define nfserr_old_stateid cpu_to_be32(NFSERR_OLD_STATEID) |
| 235 | #define nfserr_bad_stateid cpu_to_be32(NFSERR_BAD_STATEID) |
| 236 | #define nfserr_bad_seqid cpu_to_be32(NFSERR_BAD_SEQID) |
| 237 | #define nfserr_symlink cpu_to_be32(NFSERR_SYMLINK) |
| 238 | #define nfserr_not_same cpu_to_be32(NFSERR_NOT_SAME) |
| 239 | #define nfserr_restorefh cpu_to_be32(NFSERR_RESTOREFH) |
| 240 | #define nfserr_attrnotsupp cpu_to_be32(NFSERR_ATTRNOTSUPP) |
| 241 | #define nfserr_bad_xdr cpu_to_be32(NFSERR_BAD_XDR) |
| 242 | #define nfserr_openmode cpu_to_be32(NFSERR_OPENMODE) |
| 243 | #define nfserr_locks_held cpu_to_be32(NFSERR_LOCKS_HELD) |
| 244 | #define nfserr_op_illegal cpu_to_be32(NFSERR_OP_ILLEGAL) |
| 245 | #define nfserr_grace cpu_to_be32(NFSERR_GRACE) |
| 246 | #define nfserr_no_grace cpu_to_be32(NFSERR_NO_GRACE) |
| 247 | #define nfserr_reclaim_bad cpu_to_be32(NFSERR_RECLAIM_BAD) |
| 248 | #define nfserr_badname cpu_to_be32(NFSERR_BADNAME) |
| 249 | #define nfserr_cb_path_down cpu_to_be32(NFSERR_CB_PATH_DOWN) |
| 250 | #define nfserr_locked cpu_to_be32(NFSERR_LOCKED) |
| 251 | #define nfserr_wrongsec cpu_to_be32(NFSERR_WRONGSEC) |
| 252 | #define nfserr_replay_me cpu_to_be32(NFSERR_REPLAY_ME) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | |
| 254 | /* error codes for internal use */ |
| 255 | /* if a request fails due to kmalloc failure, it gets dropped. |
| 256 | * Client should resend eventually |
| 257 | */ |
Harvey Harrison | 77f18f5 | 2009-02-11 17:16:58 -0800 | [diff] [blame^] | 258 | #define nfserr_dropit cpu_to_be32(30000) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | /* end-of-file indicator in readdir */ |
Harvey Harrison | 77f18f5 | 2009-02-11 17:16:58 -0800 | [diff] [blame^] | 260 | #define nfserr_eof cpu_to_be32(30001) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | |
| 262 | /* Check for dir entries '.' and '..' */ |
| 263 | #define isdotent(n, l) (l < 3 && n[0] == '.' && (l == 1 || n[1] == '.')) |
| 264 | |
| 265 | /* |
| 266 | * Time of server startup |
| 267 | */ |
| 268 | extern struct timeval nfssvc_boot; |
| 269 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 270 | #ifdef CONFIG_NFSD_V4 |
| 271 | |
| 272 | /* before processing a COMPOUND operation, we have to check that there |
| 273 | * is enough space in the buffer for XDR encode to succeed. otherwise, |
| 274 | * we might process an operation with side effects, and be unable to |
| 275 | * tell the client that the operation succeeded. |
| 276 | * |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 277 | * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 278 | * needed to encode an "ordinary" _successful_ operation. (GETATTR, |
| 279 | * READ, READDIR, and READLINK have their own buffer checks.) if we |
| 280 | * fall below this level, we fail the next operation with NFS4ERR_RESOURCE. |
| 281 | * |
J.Bruce Fields | e571019 | 2006-12-13 00:35:20 -0800 | [diff] [blame] | 282 | * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | * needed to encode an operation which has failed with NFS4ERR_RESOURCE. |
| 284 | * care is taken to ensure that we never fall below this level for any |
| 285 | * reason. |
| 286 | */ |
| 287 | #define COMPOUND_SLACK_SPACE 140 /* OP_GETFH */ |
| 288 | #define COMPOUND_ERR_SLACK_SPACE 12 /* OP_SETATTR */ |
| 289 | |
| 290 | #define NFSD_LEASE_TIME (nfs4_lease_time()) |
| 291 | #define NFSD_LAUNDROMAT_MINTIMEOUT 10 /* seconds */ |
| 292 | |
| 293 | /* |
| 294 | * The following attributes are currently not supported by the NFSv4 server: |
| 295 | * ARCHIVE (deprecated anyway) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | * HIDDEN (unlikely to be supported any time soon) |
| 297 | * MIMETYPE (unlikely to be supported any time soon) |
| 298 | * QUOTA_* (will be supported in a forthcoming patch) |
| 299 | * SYSTEM (unlikely to be supported any time soon) |
| 300 | * TIME_BACKUP (unlikely to be supported any time soon) |
| 301 | * TIME_CREATE (unlikely to be supported any time soon) |
| 302 | */ |
| 303 | #define NFSD_SUPPORTED_ATTRS_WORD0 \ |
| 304 | (FATTR4_WORD0_SUPPORTED_ATTRS | FATTR4_WORD0_TYPE | FATTR4_WORD0_FH_EXPIRE_TYPE \ |
| 305 | | FATTR4_WORD0_CHANGE | FATTR4_WORD0_SIZE | FATTR4_WORD0_LINK_SUPPORT \ |
| 306 | | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR | FATTR4_WORD0_FSID \ |
| 307 | | FATTR4_WORD0_UNIQUE_HANDLES | FATTR4_WORD0_LEASE_TIME | FATTR4_WORD0_RDATTR_ERROR \ |
| 308 | | FATTR4_WORD0_ACLSUPPORT | FATTR4_WORD0_CANSETTIME | FATTR4_WORD0_CASE_INSENSITIVE \ |
| 309 | | FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED \ |
| 310 | | FATTR4_WORD0_FILEHANDLE | FATTR4_WORD0_FILEID | FATTR4_WORD0_FILES_AVAIL \ |
J.Bruce Fields | 81c3f41 | 2006-10-04 02:16:19 -0700 | [diff] [blame] | 311 | | FATTR4_WORD0_FILES_FREE | FATTR4_WORD0_FILES_TOTAL | FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_HOMOGENEOUS \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | | FATTR4_WORD0_MAXFILESIZE | FATTR4_WORD0_MAXLINK | FATTR4_WORD0_MAXNAME \ |
| 313 | | FATTR4_WORD0_MAXREAD | FATTR4_WORD0_MAXWRITE | FATTR4_WORD0_ACL) |
| 314 | |
| 315 | #define NFSD_SUPPORTED_ATTRS_WORD1 \ |
| 316 | (FATTR4_WORD1_MODE | FATTR4_WORD1_NO_TRUNC | FATTR4_WORD1_NUMLINKS \ |
| 317 | | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP | FATTR4_WORD1_RAWDEV \ |
| 318 | | FATTR4_WORD1_SPACE_AVAIL | FATTR4_WORD1_SPACE_FREE | FATTR4_WORD1_SPACE_TOTAL \ |
| 319 | | FATTR4_WORD1_SPACE_USED | FATTR4_WORD1_TIME_ACCESS | FATTR4_WORD1_TIME_ACCESS_SET \ |
| 320 | | FATTR4_WORD1_TIME_DELTA | FATTR4_WORD1_TIME_METADATA \ |
| 321 | | FATTR4_WORD1_TIME_MODIFY | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID) |
| 322 | |
| 323 | /* These will return ERR_INVAL if specified in GETATTR or READDIR. */ |
| 324 | #define NFSD_WRITEONLY_ATTRS_WORD1 \ |
| 325 | (FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET) |
| 326 | |
| 327 | /* These are the only attrs allowed in CREATE/OPEN/SETATTR. */ |
| 328 | #define NFSD_WRITEABLE_ATTRS_WORD0 \ |
| 329 | (FATTR4_WORD0_SIZE | FATTR4_WORD0_ACL ) |
| 330 | #define NFSD_WRITEABLE_ATTRS_WORD1 \ |
| 331 | (FATTR4_WORD1_MODE | FATTR4_WORD1_OWNER | FATTR4_WORD1_OWNER_GROUP \ |
J. Bruce Fields | e36cd4a | 2008-04-24 16:59:30 -0400 | [diff] [blame] | 332 | | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_MODIFY_SET) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
| 334 | #endif /* CONFIG_NFSD_V4 */ |
| 335 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | #endif /* LINUX_NFSD_NFSD_H */ |