Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 311 insertions, 0 deletions

diff --git a/include/linux/nfsd/nfsd.h b/include/linux/nfsd/nfsd.h
new file mode 100644
index 00000000000..8f85d9a5960
--- /dev/null
+++ b/include/linux/nfsd/nfsd.h
@@ -0,0 +1,311 @@
+/*
+ * linux/include/linux/nfsd/nfsd.h
+ *
+ * Hodge-podge collection of knfsd-related stuff.
+ * I will sort this out later.
+ *
+ * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
+ */
+
+#ifndef LINUX_NFSD_NFSD_H
+#define LINUX_NFSD_NFSD_H
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/unistd.h>
+#include <linux/dirent.h>
+#include <linux/fs.h>
+#include <linux/mount.h>
+
+#include <linux/nfsd/debug.h>
+#include <linux/nfsd/nfsfh.h>
+#include <linux/nfsd/export.h>
+#include <linux/nfsd/auth.h>
+#include <linux/nfsd/stats.h>
+#include <linux/nfsd/interface.h>
+/*
+ * nfsd version
+ */
+#define NFSD_VERSION		"0.5"
+#define NFSD_SUPPORTED_MINOR_VERSION	0
+
+#ifdef __KERNEL__
+/*
+ * Special flags for nfsd_permission. These must be different from MAY_READ,
+ * MAY_WRITE, and MAY_EXEC.
+ */
+#define MAY_NOP			0
+#define MAY_SATTR		8
+#define MAY_TRUNC		16
+#define MAY_LOCK		32
+#define MAY_OWNER_OVERRIDE	64
+#define	MAY_LOCAL_ACCESS	128 /* IRIX doing local access check on device special file*/
+#if (MAY_SATTR | MAY_TRUNC | MAY_LOCK | MAY_OWNER_OVERRIDE | MAY_LOCAL_ACCESS) & (MAY_READ | MAY_WRITE | MAY_EXEC)
+# error "please use a different value for MAY_SATTR or MAY_TRUNC or MAY_LOCK or MAY_LOCAL_ACCESS or MAY_OWNER_OVERRIDE."
+#endif
+#define MAY_CREATE		(MAY_EXEC|MAY_WRITE)
+#define MAY_REMOVE		(MAY_EXEC|MAY_WRITE|MAY_TRUNC)
+
+/*
+ * Callback function for readdir
+ */
+struct readdir_cd {
+	int			err;	/* 0, nfserr, or nfserr_eof */
+};
+typedef int		(*encode_dent_fn)(struct readdir_cd *, const char *,
+						int, loff_t, ino_t, unsigned int);
+typedef int (*nfsd_dirop_t)(struct inode *, struct dentry *, int, int);
+
+extern struct svc_program	nfsd_program;
+extern struct svc_version	nfsd_version2, nfsd_version3,
+				nfsd_version4;
+
+/*
+ * Function prototypes.
+ */
+int		nfsd_svc(unsigned short port, int nrservs);
+int		nfsd_dispatch(struct svc_rqst *rqstp, u32 *statp);
+
+/* nfsd/vfs.c */
+int		fh_lock_parent(struct svc_fh *, struct dentry *);
+int		nfsd_racache_init(int);
+void		nfsd_racache_shutdown(void);
+int		nfsd_cross_mnt(struct svc_rqst *rqstp, struct dentry **dpp,
+		                struct svc_export **expp);
+int		nfsd_lookup(struct svc_rqst *, struct svc_fh *,
+				const char *, int, struct svc_fh *);
+int		nfsd_setattr(struct svc_rqst *, struct svc_fh *,
+				struct iattr *, int, time_t);
+#ifdef CONFIG_NFSD_V4
+int             nfsd4_set_nfs4_acl(struct svc_rqst *, struct svc_fh *,
+                    struct nfs4_acl *);
+int             nfsd4_get_nfs4_acl(struct svc_rqst *, struct dentry *, struct nfs4_acl **);
+#endif /* CONFIG_NFSD_V4 */
+int		nfsd_create(struct svc_rqst *, struct svc_fh *,
+				char *name, int len, struct iattr *attrs,
+				int type, dev_t rdev, struct svc_fh *res);
+#ifdef CONFIG_NFSD_V3
+int		nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
+int		nfsd_create_v3(struct svc_rqst *, struct svc_fh *,
+				char *name, int len, struct iattr *attrs,
+				struct svc_fh *res, int createmode,
+				u32 *verifier, int *truncp);
+int		nfsd_commit(struct svc_rqst *, struct svc_fh *,
+				loff_t, unsigned long);
+#endif /* CONFIG_NFSD_V3 */
+int		nfsd_open(struct svc_rqst *, struct svc_fh *, int,
+				int, struct file **);
+void		nfsd_close(struct file *);
+int 		nfsd_read(struct svc_rqst *, struct svc_fh *, struct file *,
+				loff_t, struct kvec *, int, unsigned long *);
+int 		nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
+				loff_t, struct kvec *,int, unsigned long, int *);
+int		nfsd_readlink(struct svc_rqst *, struct svc_fh *,
+				char *, int *);
+int		nfsd_symlink(struct svc_rqst *, struct svc_fh *,
+				char *name, int len, char *path, int plen,
+				struct svc_fh *res, struct iattr *);
+int		nfsd_link(struct svc_rqst *, struct svc_fh *,
+				char *, int, struct svc_fh *);
+int		nfsd_rename(struct svc_rqst *,
+				struct svc_fh *, char *, int,
+				struct svc_fh *, char *, int);
+int		nfsd_remove(struct svc_rqst *,
+				struct svc_fh *, char *, int);
+int		nfsd_unlink(struct svc_rqst *, struct svc_fh *, int type,
+				char *name, int len);
+int		nfsd_truncate(struct svc_rqst *, struct svc_fh *,
+				unsigned long size);
+int		nfsd_readdir(struct svc_rqst *, struct svc_fh *,
+			     loff_t *, struct readdir_cd *, encode_dent_fn);
+int		nfsd_statfs(struct svc_rqst *, struct svc_fh *,
+				struct kstatfs *);
+
+int		nfsd_notify_change(struct inode *, struct iattr *);
+int		nfsd_permission(struct svc_export *, struct dentry *, int);
+
+
+/* 
+ * NFSv4 State
+ */
+#ifdef CONFIG_NFSD_V4
+int nfs4_state_init(void);
+void nfs4_state_shutdown(void);
+time_t nfs4_lease_time(void);
+void nfs4_reset_lease(time_t leasetime);
+#else
+static inline int nfs4_state_init(void){return 0;}
+static inline void nfs4_state_shutdown(void){}
+static inline time_t nfs4_lease_time(void){return 0;}
+static inline void nfs4_reset_lease(time_t leasetime){}
+#endif
+
+/*
+ * lockd binding
+ */
+void		nfsd_lockd_init(void);
+void		nfsd_lockd_shutdown(void);
+
+
+/*
+ * These macros provide pre-xdr'ed values for faster operation.
+ */
+#define	nfs_ok			__constant_htonl(NFS_OK)
+#define	nfserr_perm		__constant_htonl(NFSERR_PERM)
+#define	nfserr_noent		__constant_htonl(NFSERR_NOENT)
+#define	nfserr_io		__constant_htonl(NFSERR_IO)
+#define	nfserr_nxio		__constant_htonl(NFSERR_NXIO)
+#define	nfserr_eagain		__constant_htonl(NFSERR_EAGAIN)
+#define	nfserr_acces		__constant_htonl(NFSERR_ACCES)
+#define	nfserr_exist		__constant_htonl(NFSERR_EXIST)
+#define	nfserr_xdev		__constant_htonl(NFSERR_XDEV)
+#define	nfserr_nodev		__constant_htonl(NFSERR_NODEV)
+#define	nfserr_notdir		__constant_htonl(NFSERR_NOTDIR)
+#define	nfserr_isdir		__constant_htonl(NFSERR_ISDIR)
+#define	nfserr_inval		__constant_htonl(NFSERR_INVAL)
+#define	nfserr_fbig		__constant_htonl(NFSERR_FBIG)
+#define	nfserr_nospc		__constant_htonl(NFSERR_NOSPC)
+#define	nfserr_rofs		__constant_htonl(NFSERR_ROFS)
+#define	nfserr_mlink		__constant_htonl(NFSERR_MLINK)
+#define	nfserr_opnotsupp	__constant_htonl(NFSERR_OPNOTSUPP)
+#define	nfserr_nametoolong	__constant_htonl(NFSERR_NAMETOOLONG)
+#define	nfserr_notempty		__constant_htonl(NFSERR_NOTEMPTY)
+#define	nfserr_dquot		__constant_htonl(NFSERR_DQUOT)
+#define	nfserr_stale		__constant_htonl(NFSERR_STALE)
+#define	nfserr_remote		__constant_htonl(NFSERR_REMOTE)
+#define	nfserr_wflush		__constant_htonl(NFSERR_WFLUSH)
+#define	nfserr_badhandle	__constant_htonl(NFSERR_BADHANDLE)
+#define	nfserr_notsync		__constant_htonl(NFSERR_NOT_SYNC)
+#define	nfserr_badcookie	__constant_htonl(NFSERR_BAD_COOKIE)
+#define	nfserr_notsupp		__constant_htonl(NFSERR_NOTSUPP)
+#define	nfserr_toosmall		__constant_htonl(NFSERR_TOOSMALL)
+#define	nfserr_serverfault	__constant_htonl(NFSERR_SERVERFAULT)
+#define	nfserr_badtype		__constant_htonl(NFSERR_BADTYPE)
+#define	nfserr_jukebox		__constant_htonl(NFSERR_JUKEBOX)
+#define	nfserr_denied		__constant_htonl(NFSERR_DENIED)
+#define	nfserr_deadlock		__constant_htonl(NFSERR_DEADLOCK)
+#define nfserr_expired          __constant_htonl(NFSERR_EXPIRED)
+#define	nfserr_bad_cookie	__constant_htonl(NFSERR_BAD_COOKIE)
+#define	nfserr_same		__constant_htonl(NFSERR_SAME)
+#define	nfserr_clid_inuse	__constant_htonl(NFSERR_CLID_INUSE)
+#define	nfserr_stale_clientid	__constant_htonl(NFSERR_STALE_CLIENTID)
+#define	nfserr_resource		__constant_htonl(NFSERR_RESOURCE)
+#define	nfserr_nofilehandle	__constant_htonl(NFSERR_NOFILEHANDLE)
+#define	nfserr_minor_vers_mismatch	__constant_htonl(NFSERR_MINOR_VERS_MISMATCH)
+#define nfserr_share_denied	__constant_htonl(NFSERR_SHARE_DENIED)
+#define nfserr_stale_stateid	__constant_htonl(NFSERR_STALE_STATEID)
+#define nfserr_old_stateid	__constant_htonl(NFSERR_OLD_STATEID)
+#define nfserr_bad_stateid	__constant_htonl(NFSERR_BAD_STATEID)
+#define nfserr_bad_seqid	__constant_htonl(NFSERR_BAD_SEQID)
+#define	nfserr_symlink		__constant_htonl(NFSERR_SYMLINK)
+#define	nfserr_not_same		__constant_htonl(NFSERR_NOT_SAME)
+#define	nfserr_restorefh	__constant_htonl(NFSERR_RESTOREFH)
+#define	nfserr_attrnotsupp	__constant_htonl(NFSERR_ATTRNOTSUPP)
+#define	nfserr_bad_xdr		__constant_htonl(NFSERR_BAD_XDR)
+#define	nfserr_openmode		__constant_htonl(NFSERR_OPENMODE)
+#define	nfserr_locks_held	__constant_htonl(NFSERR_LOCKS_HELD)
+#define	nfserr_op_illegal	__constant_htonl(NFSERR_OP_ILLEGAL)
+#define	nfserr_grace		__constant_htonl(NFSERR_GRACE)
+#define	nfserr_no_grace		__constant_htonl(NFSERR_NO_GRACE)
+#define	nfserr_reclaim_bad	__constant_htonl(NFSERR_RECLAIM_BAD)
+#define	nfserr_badname		__constant_htonl(NFSERR_BADNAME)
+#define	nfserr_cb_path_down	__constant_htonl(NFSERR_CB_PATH_DOWN)
+
+/* error codes for internal use */
+/* if a request fails due to kmalloc failure, it gets dropped.
+ *  Client should resend eventually
+ */
+#define	nfserr_dropit		__constant_htonl(30000)
+/* end-of-file indicator in readdir */
+#define	nfserr_eof		__constant_htonl(30001)
+
+/* Check for dir entries '.' and '..' */
+#define isdotent(n, l)	(l < 3 && n[0] == '.' && (l == 1 || n[1] == '.'))
+
+/*
+ * Time of server startup
+ */
+extern struct timeval	nfssvc_boot;
+
+static inline int is_fsid(struct svc_fh *fh, struct knfsd_fh *reffh)
+{
+	if (fh->fh_export->ex_flags & NFSEXP_FSID) {
+		struct vfsmount *mnt = fh->fh_export->ex_mnt;
+		if (!old_valid_dev(mnt->mnt_sb->s_dev) ||
+		    (reffh->fh_version == 1 && reffh->fh_fsid_type == 1))
+			return 1;
+	}
+	return 0;
+}
+
+
+#ifdef CONFIG_NFSD_V4
+
+/* before processing a COMPOUND operation, we have to check that there
+ * is enough space in the buffer for XDR encode to succeed.  otherwise,
+ * we might process an operation with side effects, and be unable to
+ * tell the client that the operation succeeded.
+ *
+ * COMPOUND_SLACK_SPACE - this is the minimum amount of buffer space
+ * needed to encode an "ordinary" _successful_ operation.  (GETATTR,
+ * READ, READDIR, and READLINK have their own buffer checks.)  if we
+ * fall below this level, we fail the next operation with NFS4ERR_RESOURCE.
+ *
+ * COMPOUND_ERR_SLACK_SPACE - this is the minimum amount of buffer space
+ * needed to encode an operation which has failed with NFS4ERR_RESOURCE.
+ * care is taken to ensure that we never fall below this level for any
+ * reason.
+ */
+#define	COMPOUND_SLACK_SPACE		140    /* OP_GETFH */
+#define COMPOUND_ERR_SLACK_SPACE	12     /* OP_SETATTR */
+
+#define NFSD_LEASE_TIME                 (nfs4_lease_time())
+#define NFSD_LAUNDROMAT_MINTIMEOUT      10   /* seconds */
+
+/*
+ * The following attributes are currently not supported by the NFSv4 server:
+ *    ARCHIVE       (deprecated anyway)
+ *    FS_LOCATIONS  (will be supported eventually)
+ *    HIDDEN        (unlikely to be supported any time soon)
+ *    MIMETYPE      (unlikely to be supported any time soon)
+ *    QUOTA_*       (will be supported in a forthcoming patch)
+ *    SYSTEM        (unlikely to be supported any time soon)
+ *    TIME_BACKUP   (unlikely to be supported any time soon)
+ *    TIME_CREATE   (unlikely to be supported any time soon)
+ */
+#define NFSD_SUPPORTED_ATTRS_WORD0                                                          \
+(FATTR4_WORD0_SUPPORTED_ATTRS   | FATTR4_WORD0_TYPE         | FATTR4_WORD0_FH_EXPIRE_TYPE   \
+ | FATTR4_WORD0_CHANGE          | FATTR4_WORD0_SIZE         | FATTR4_WORD0_LINK_SUPPORT     \
+ | FATTR4_WORD0_SYMLINK_SUPPORT | FATTR4_WORD0_NAMED_ATTR   | FATTR4_WORD0_FSID             \
+ | FATTR4_WORD0_UNIQUE_HANDLES  | FATTR4_WORD0_LEASE_TIME   | FATTR4_WORD0_RDATTR_ERROR     \
+ | FATTR4_WORD0_ACLSUPPORT      | FATTR4_WORD0_CANSETTIME   | FATTR4_WORD0_CASE_INSENSITIVE \
+ | FATTR4_WORD0_CASE_PRESERVING | FATTR4_WORD0_CHOWN_RESTRICTED                             \
+ | FATTR4_WORD0_FILEHANDLE      | FATTR4_WORD0_FILEID       | FATTR4_WORD0_FILES_AVAIL      \
+ | FATTR4_WORD0_FILES_FREE      | FATTR4_WORD0_FILES_TOTAL  | FATTR4_WORD0_HOMOGENEOUS      \
+ | FATTR4_WORD0_MAXFILESIZE     | FATTR4_WORD0_MAXLINK      | FATTR4_WORD0_MAXNAME          \
+ | FATTR4_WORD0_MAXREAD         | FATTR4_WORD0_MAXWRITE     | FATTR4_WORD0_ACL)
+
+#define NFSD_SUPPORTED_ATTRS_WORD1                                                          \
+(FATTR4_WORD1_MODE              | FATTR4_WORD1_NO_TRUNC     | FATTR4_WORD1_NUMLINKS         \
+ | FATTR4_WORD1_OWNER	        | FATTR4_WORD1_OWNER_GROUP  | FATTR4_WORD1_RAWDEV           \
+ | FATTR4_WORD1_SPACE_AVAIL     | FATTR4_WORD1_SPACE_FREE   | FATTR4_WORD1_SPACE_TOTAL      \
+ | FATTR4_WORD1_SPACE_USED      | FATTR4_WORD1_TIME_ACCESS  | FATTR4_WORD1_TIME_ACCESS_SET  \
+ | FATTR4_WORD1_TIME_DELTA   | FATTR4_WORD1_TIME_METADATA    \
+ | FATTR4_WORD1_TIME_MODIFY     | FATTR4_WORD1_TIME_MODIFY_SET | FATTR4_WORD1_MOUNTED_ON_FILEID)
+
+/* These will return ERR_INVAL if specified in GETATTR or READDIR. */
+#define NFSD_WRITEONLY_ATTRS_WORD1							    \
+(FATTR4_WORD1_TIME_ACCESS_SET   | FATTR4_WORD1_TIME_MODIFY_SET)
+
+/* These are the only attrs allowed in CREATE/OPEN/SETATTR. */
+#define NFSD_WRITEABLE_ATTRS_WORD0                                                          \
+(FATTR4_WORD0_SIZE              | FATTR4_WORD0_ACL                                         )
+#define NFSD_WRITEABLE_ATTRS_WORD1                                                          \
+(FATTR4_WORD1_MODE              | FATTR4_WORD1_OWNER         | FATTR4_WORD1_OWNER_GROUP     \
+ | FATTR4_WORD1_TIME_ACCESS_SET | FATTR4_WORD1_TIME_METADATA | FATTR4_WORD1_TIME_MODIFY_SET)
+
+#endif /* CONFIG_NFSD_V4 */
+
+#endif /* __KERNEL__ */
+
+#endif /* LINUX_NFSD_NFSD_H */