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-rw-r--r--include/linux/nfs_xdr.h735
1 files changed, 735 insertions, 0 deletions
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
new file mode 100644
index 000000000000..47037d9521cb
--- /dev/null
+++ b/include/linux/nfs_xdr.h
@@ -0,0 +1,735 @@
+#ifndef _LINUX_NFS_XDR_H
+#define _LINUX_NFS_XDR_H
+
+#include <linux/sunrpc/xprt.h>
+
+struct nfs4_fsid {
+ __u64 major;
+ __u64 minor;
+};
+
+struct nfs_fattr {
+ unsigned short valid; /* which fields are valid */
+ __u64 pre_size; /* pre_op_attr.size */
+ struct timespec pre_mtime; /* pre_op_attr.mtime */
+ struct timespec pre_ctime; /* pre_op_attr.ctime */
+ enum nfs_ftype type; /* always use NFSv2 types */
+ __u32 mode;
+ __u32 nlink;
+ __u32 uid;
+ __u32 gid;
+ __u64 size;
+ union {
+ struct {
+ __u32 blocksize;
+ __u32 blocks;
+ } nfs2;
+ struct {
+ __u64 used;
+ } nfs3;
+ } du;
+ dev_t rdev;
+ union {
+ __u64 nfs3; /* also nfs2 */
+ struct nfs4_fsid nfs4;
+ } fsid_u;
+ __u64 fileid;
+ struct timespec atime;
+ struct timespec mtime;
+ struct timespec ctime;
+ __u32 bitmap[2]; /* NFSv4 returned attribute bitmap */
+ __u64 change_attr; /* NFSv4 change attribute */
+ __u64 pre_change_attr;/* pre-op NFSv4 change attribute */
+ unsigned long timestamp;
+};
+
+#define NFS_ATTR_WCC 0x0001 /* pre-op WCC data */
+#define NFS_ATTR_FATTR 0x0002 /* post-op attributes */
+#define NFS_ATTR_FATTR_V3 0x0004 /* NFSv3 attributes */
+#define NFS_ATTR_FATTR_V4 0x0008
+#define NFS_ATTR_PRE_CHANGE 0x0010
+
+/*
+ * Info on the file system
+ */
+struct nfs_fsinfo {
+ struct nfs_fattr *fattr; /* Post-op attributes */
+ __u32 rtmax; /* max. read transfer size */
+ __u32 rtpref; /* pref. read transfer size */
+ __u32 rtmult; /* reads should be multiple of this */
+ __u32 wtmax; /* max. write transfer size */
+ __u32 wtpref; /* pref. write transfer size */
+ __u32 wtmult; /* writes should be multiple of this */
+ __u32 dtpref; /* pref. readdir transfer size */
+ __u64 maxfilesize;
+ __u32 lease_time; /* in seconds */
+};
+
+struct nfs_fsstat {
+ struct nfs_fattr *fattr; /* Post-op attributes */
+ __u64 tbytes; /* total size in bytes */
+ __u64 fbytes; /* # of free bytes */
+ __u64 abytes; /* # of bytes available to user */
+ __u64 tfiles; /* # of files */
+ __u64 ffiles; /* # of free files */
+ __u64 afiles; /* # of files available to user */
+};
+
+struct nfs2_fsstat {
+ __u32 tsize; /* Server transfer size */
+ __u32 bsize; /* Filesystem block size */
+ __u32 blocks; /* No. of "bsize" blocks on filesystem */
+ __u32 bfree; /* No. of free "bsize" blocks */
+ __u32 bavail; /* No. of available "bsize" blocks */
+};
+
+struct nfs_pathconf {
+ struct nfs_fattr *fattr; /* Post-op attributes */
+ __u32 max_link; /* max # of hard links */
+ __u32 max_namelen; /* max name length */
+};
+
+struct nfs4_change_info {
+ u32 atomic;
+ u64 before;
+ u64 after;
+};
+
+/*
+ * Arguments to the open call.
+ */
+struct nfs_openargs {
+ const struct nfs_fh * fh;
+ __u32 seqid;
+ int open_flags;
+ __u64 clientid;
+ __u32 id;
+ union {
+ struct iattr * attrs; /* UNCHECKED, GUARDED */
+ nfs4_verifier verifier; /* EXCLUSIVE */
+ nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
+ int delegation_type; /* CLAIM_PREVIOUS */
+ } u;
+ const struct qstr * name;
+ const struct nfs_server *server; /* Needed for ID mapping */
+ const u32 * bitmask;
+ __u32 claim;
+};
+
+struct nfs_openres {
+ nfs4_stateid stateid;
+ struct nfs_fh fh;
+ struct nfs4_change_info cinfo;
+ __u32 rflags;
+ struct nfs_fattr * f_attr;
+ const struct nfs_server *server;
+ int delegation_type;
+ nfs4_stateid delegation;
+ __u32 do_recall;
+ __u64 maxsize;
+};
+
+/*
+ * Arguments to the open_confirm call.
+ */
+struct nfs_open_confirmargs {
+ const struct nfs_fh * fh;
+ nfs4_stateid stateid;
+ __u32 seqid;
+};
+
+struct nfs_open_confirmres {
+ nfs4_stateid stateid;
+};
+
+/*
+ * Arguments to the close call.
+ */
+struct nfs_closeargs {
+ struct nfs_fh * fh;
+ nfs4_stateid stateid;
+ __u32 seqid;
+ int open_flags;
+};
+
+struct nfs_closeres {
+ nfs4_stateid stateid;
+};
+/*
+ * * Arguments to the lock,lockt, and locku call.
+ * */
+struct nfs_lowner {
+ __u64 clientid;
+ u32 id;
+};
+
+struct nfs_open_to_lock {
+ __u32 open_seqid;
+ nfs4_stateid open_stateid;
+ __u32 lock_seqid;
+ struct nfs_lowner lock_owner;
+};
+
+struct nfs_exist_lock {
+ nfs4_stateid stateid;
+ __u32 seqid;
+};
+
+struct nfs_lock_opargs {
+ __u32 reclaim;
+ __u32 new_lock_owner;
+ union {
+ struct nfs_open_to_lock *open_lock;
+ struct nfs_exist_lock *exist_lock;
+ } u;
+};
+
+struct nfs_locku_opargs {
+ __u32 seqid;
+ nfs4_stateid stateid;
+};
+
+struct nfs_lockargs {
+ struct nfs_fh * fh;
+ __u32 type;
+ __u64 offset;
+ __u64 length;
+ union {
+ struct nfs_lock_opargs *lock; /* LOCK */
+ struct nfs_lowner *lockt; /* LOCKT */
+ struct nfs_locku_opargs *locku; /* LOCKU */
+ } u;
+};
+
+struct nfs_lock_denied {
+ __u64 offset;
+ __u64 length;
+ __u32 type;
+ struct nfs_lowner owner;
+};
+
+struct nfs_lockres {
+ union {
+ nfs4_stateid stateid;/* LOCK success, LOCKU */
+ struct nfs_lock_denied denied; /* LOCK failed, LOCKT success */
+ } u;
+ const struct nfs_server * server;
+};
+
+struct nfs4_delegreturnargs {
+ const struct nfs_fh *fhandle;
+ const nfs4_stateid *stateid;
+};
+
+/*
+ * Arguments to the read call.
+ */
+
+#define NFS_READ_MAXIOV (9U)
+#if (NFS_READ_MAXIOV > (MAX_IOVEC -2))
+#error "NFS_READ_MAXIOV is too large"
+#endif
+
+struct nfs_readargs {
+ struct nfs_fh * fh;
+ struct nfs_open_context *context;
+ __u64 offset;
+ __u32 count;
+ unsigned int pgbase;
+ struct page ** pages;
+};
+
+struct nfs_readres {
+ struct nfs_fattr * fattr;
+ __u32 count;
+ int eof;
+};
+
+/*
+ * Arguments to the write call.
+ */
+#define NFS_WRITE_MAXIOV (9U)
+#if (NFS_WRITE_MAXIOV > (MAX_IOVEC -2))
+#error "NFS_WRITE_MAXIOV is too large"
+#endif
+
+struct nfs_writeargs {
+ struct nfs_fh * fh;
+ struct nfs_open_context *context;
+ __u64 offset;
+ __u32 count;
+ enum nfs3_stable_how stable;
+ unsigned int pgbase;
+ struct page ** pages;
+};
+
+struct nfs_writeverf {
+ enum nfs3_stable_how committed;
+ __u32 verifier[2];
+};
+
+struct nfs_writeres {
+ struct nfs_fattr * fattr;
+ struct nfs_writeverf * verf;
+ __u32 count;
+};
+
+/*
+ * Argument struct for decode_entry function
+ */
+struct nfs_entry {
+ __u64 ino;
+ __u64 cookie,
+ prev_cookie;
+ const char * name;
+ unsigned int len;
+ int eof;
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+};
+
+/*
+ * The following types are for NFSv2 only.
+ */
+struct nfs_sattrargs {
+ struct nfs_fh * fh;
+ struct iattr * sattr;
+};
+
+struct nfs_diropargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+};
+
+struct nfs_createargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ struct iattr * sattr;
+};
+
+struct nfs_renameargs {
+ struct nfs_fh * fromfh;
+ const char * fromname;
+ unsigned int fromlen;
+ struct nfs_fh * tofh;
+ const char * toname;
+ unsigned int tolen;
+};
+
+struct nfs_setattrargs {
+ struct nfs_fh * fh;
+ nfs4_stateid stateid;
+ struct iattr * iap;
+ const struct nfs_server * server; /* Needed for name mapping */
+ const u32 * bitmask;
+};
+
+struct nfs_setattrres {
+ struct nfs_fattr * fattr;
+ const struct nfs_server * server;
+};
+
+struct nfs_linkargs {
+ struct nfs_fh * fromfh;
+ struct nfs_fh * tofh;
+ const char * toname;
+ unsigned int tolen;
+};
+
+struct nfs_symlinkargs {
+ struct nfs_fh * fromfh;
+ const char * fromname;
+ unsigned int fromlen;
+ const char * topath;
+ unsigned int tolen;
+ struct iattr * sattr;
+};
+
+struct nfs_readdirargs {
+ struct nfs_fh * fh;
+ __u32 cookie;
+ unsigned int count;
+ struct page ** pages;
+};
+
+struct nfs_diropok {
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs_readlinkargs {
+ struct nfs_fh * fh;
+ unsigned int pgbase;
+ unsigned int pglen;
+ struct page ** pages;
+};
+
+struct nfs3_sattrargs {
+ struct nfs_fh * fh;
+ struct iattr * sattr;
+ unsigned int guard;
+ struct timespec guardtime;
+};
+
+struct nfs3_diropargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+};
+
+struct nfs3_accessargs {
+ struct nfs_fh * fh;
+ __u32 access;
+};
+
+struct nfs3_createargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ struct iattr * sattr;
+ enum nfs3_createmode createmode;
+ __u32 verifier[2];
+};
+
+struct nfs3_mkdirargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ struct iattr * sattr;
+};
+
+struct nfs3_symlinkargs {
+ struct nfs_fh * fromfh;
+ const char * fromname;
+ unsigned int fromlen;
+ const char * topath;
+ unsigned int tolen;
+ struct iattr * sattr;
+};
+
+struct nfs3_mknodargs {
+ struct nfs_fh * fh;
+ const char * name;
+ unsigned int len;
+ enum nfs3_ftype type;
+ struct iattr * sattr;
+ dev_t rdev;
+};
+
+struct nfs3_renameargs {
+ struct nfs_fh * fromfh;
+ const char * fromname;
+ unsigned int fromlen;
+ struct nfs_fh * tofh;
+ const char * toname;
+ unsigned int tolen;
+};
+
+struct nfs3_linkargs {
+ struct nfs_fh * fromfh;
+ struct nfs_fh * tofh;
+ const char * toname;
+ unsigned int tolen;
+};
+
+struct nfs3_readdirargs {
+ struct nfs_fh * fh;
+ __u64 cookie;
+ __u32 verf[2];
+ int plus;
+ unsigned int count;
+ struct page ** pages;
+};
+
+struct nfs3_diropres {
+ struct nfs_fattr * dir_attr;
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs3_accessres {
+ struct nfs_fattr * fattr;
+ __u32 access;
+};
+
+struct nfs3_readlinkargs {
+ struct nfs_fh * fh;
+ unsigned int pgbase;
+ unsigned int pglen;
+ struct page ** pages;
+};
+
+struct nfs3_renameres {
+ struct nfs_fattr * fromattr;
+ struct nfs_fattr * toattr;
+};
+
+struct nfs3_linkres {
+ struct nfs_fattr * dir_attr;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs3_readdirres {
+ struct nfs_fattr * dir_attr;
+ __u32 * verf;
+ int plus;
+};
+
+#ifdef CONFIG_NFS_V4
+
+typedef u64 clientid4;
+
+struct nfs4_accessargs {
+ const struct nfs_fh * fh;
+ u32 access;
+};
+
+struct nfs4_accessres {
+ u32 supported;
+ u32 access;
+};
+
+struct nfs4_create_arg {
+ u32 ftype;
+ union {
+ struct qstr * symlink; /* NF4LNK */
+ struct {
+ u32 specdata1;
+ u32 specdata2;
+ } device; /* NF4BLK, NF4CHR */
+ } u;
+ const struct qstr * name;
+ const struct nfs_server * server;
+ const struct iattr * attrs;
+ const struct nfs_fh * dir_fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_create_res {
+ const struct nfs_server * server;
+ struct nfs_fh * fh;
+ struct nfs_fattr * fattr;
+ struct nfs4_change_info dir_cinfo;
+};
+
+struct nfs4_fsinfo_arg {
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_getattr_arg {
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_getattr_res {
+ const struct nfs_server * server;
+ struct nfs_fattr * fattr;
+};
+
+struct nfs4_link_arg {
+ const struct nfs_fh * fh;
+ const struct nfs_fh * dir_fh;
+ const struct qstr * name;
+};
+
+struct nfs4_lookup_arg {
+ const struct nfs_fh * dir_fh;
+ const struct qstr * name;
+ const u32 * bitmask;
+};
+
+struct nfs4_lookup_res {
+ const struct nfs_server * server;
+ struct nfs_fattr * fattr;
+ struct nfs_fh * fh;
+};
+
+struct nfs4_lookup_root_arg {
+ const u32 * bitmask;
+};
+
+struct nfs4_pathconf_arg {
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_readdir_arg {
+ const struct nfs_fh * fh;
+ u64 cookie;
+ nfs4_verifier verifier;
+ u32 count;
+ struct page ** pages; /* zero-copy data */
+ unsigned int pgbase; /* zero-copy data */
+ const u32 * bitmask;
+};
+
+struct nfs4_readdir_res {
+ nfs4_verifier verifier;
+ unsigned int pgbase;
+};
+
+struct nfs4_readlink {
+ const struct nfs_fh * fh;
+ unsigned int pgbase;
+ unsigned int pglen; /* zero-copy data */
+ struct page ** pages; /* zero-copy data */
+};
+
+struct nfs4_remove_arg {
+ const struct nfs_fh * fh;
+ const struct qstr * name;
+};
+
+struct nfs4_rename_arg {
+ const struct nfs_fh * old_dir;
+ const struct nfs_fh * new_dir;
+ const struct qstr * old_name;
+ const struct qstr * new_name;
+};
+
+struct nfs4_rename_res {
+ struct nfs4_change_info old_cinfo;
+ struct nfs4_change_info new_cinfo;
+};
+
+struct nfs4_setclientid {
+ const nfs4_verifier * sc_verifier; /* request */
+ unsigned int sc_name_len;
+ char sc_name[32]; /* request */
+ u32 sc_prog; /* request */
+ unsigned int sc_netid_len;
+ char sc_netid[4]; /* request */
+ unsigned int sc_uaddr_len;
+ char sc_uaddr[24]; /* request */
+ u32 sc_cb_ident; /* request */
+};
+
+struct nfs4_statfs_arg {
+ const struct nfs_fh * fh;
+ const u32 * bitmask;
+};
+
+struct nfs4_server_caps_res {
+ u32 attr_bitmask[2];
+ u32 acl_bitmask;
+ u32 has_links;
+ u32 has_symlinks;
+};
+
+#endif /* CONFIG_NFS_V4 */
+
+struct nfs_page;
+
+struct nfs_read_data {
+ int flags;
+ struct rpc_task task;
+ struct inode *inode;
+ struct rpc_cred *cred;
+ struct nfs_fattr fattr; /* fattr storage */
+ struct list_head pages; /* Coalesced read requests */
+ struct nfs_page *req; /* multi ops per nfs_page */
+ struct page *pagevec[NFS_READ_MAXIOV];
+ struct nfs_readargs args;
+ struct nfs_readres res;
+#ifdef CONFIG_NFS_V4
+ unsigned long timestamp; /* For lease renewal */
+#endif
+ void (*complete) (struct nfs_read_data *, int);
+};
+
+struct nfs_write_data {
+ int flags;
+ struct rpc_task task;
+ struct inode *inode;
+ struct rpc_cred *cred;
+ struct nfs_fattr fattr;
+ struct nfs_writeverf verf;
+ struct list_head pages; /* Coalesced requests we wish to flush */
+ struct nfs_page *req; /* multi ops per nfs_page */
+ struct page *pagevec[NFS_WRITE_MAXIOV];
+ struct nfs_writeargs args; /* argument struct */
+ struct nfs_writeres res; /* result struct */
+#ifdef CONFIG_NFS_V4
+ unsigned long timestamp; /* For lease renewal */
+#endif
+ void (*complete) (struct nfs_write_data *, int);
+};
+
+struct nfs_access_entry;
+
+/*
+ * RPC procedure vector for NFSv2/NFSv3 demuxing
+ */
+struct nfs_rpc_ops {
+ int version; /* Protocol version */
+ struct dentry_operations *dentry_ops;
+ struct inode_operations *dir_inode_ops;
+
+ int (*getroot) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fsinfo *);
+ int (*getattr) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fattr *);
+ int (*setattr) (struct dentry *, struct nfs_fattr *,
+ struct iattr *);
+ int (*lookup) (struct inode *, struct qstr *,
+ struct nfs_fh *, struct nfs_fattr *);
+ int (*access) (struct inode *, struct nfs_access_entry *);
+ int (*readlink)(struct inode *, struct page *, unsigned int,
+ unsigned int);
+ int (*read) (struct nfs_read_data *);
+ int (*write) (struct nfs_write_data *);
+ int (*commit) (struct nfs_write_data *);
+ int (*create) (struct inode *, struct dentry *,
+ struct iattr *, int);
+ int (*remove) (struct inode *, struct qstr *);
+ int (*unlink_setup) (struct rpc_message *,
+ struct dentry *, struct qstr *);
+ int (*unlink_done) (struct dentry *, struct rpc_task *);
+ int (*rename) (struct inode *, struct qstr *,
+ struct inode *, struct qstr *);
+ int (*link) (struct inode *, struct inode *, struct qstr *);
+ int (*symlink) (struct inode *, struct qstr *, struct qstr *,
+ struct iattr *, struct nfs_fh *,
+ struct nfs_fattr *);
+ int (*mkdir) (struct inode *, struct dentry *, struct iattr *);
+ int (*rmdir) (struct inode *, struct qstr *);
+ int (*readdir) (struct dentry *, struct rpc_cred *,
+ u64, struct page *, unsigned int, int);
+ int (*mknod) (struct inode *, struct dentry *, struct iattr *,
+ dev_t);
+ int (*statfs) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fsstat *);
+ int (*fsinfo) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_fsinfo *);
+ int (*pathconf) (struct nfs_server *, struct nfs_fh *,
+ struct nfs_pathconf *);
+ u32 * (*decode_dirent)(u32 *, struct nfs_entry *, int plus);
+ void (*read_setup) (struct nfs_read_data *);
+ void (*write_setup) (struct nfs_write_data *, int how);
+ void (*commit_setup) (struct nfs_write_data *, int how);
+ int (*file_open) (struct inode *, struct file *);
+ int (*file_release) (struct inode *, struct file *);
+ int (*lock)(struct file *, int, struct file_lock *);
+};
+
+/*
+ * NFS_CALL(getattr, inode, (fattr));
+ * into
+ * NFS_PROTO(inode)->getattr(fattr);
+ */
+#define NFS_CALL(op, inode, args) NFS_PROTO(inode)->op args
+
+/*
+ * Function vectors etc. for the NFS client
+ */
+extern struct nfs_rpc_ops nfs_v2_clientops;
+extern struct nfs_rpc_ops nfs_v3_clientops;
+extern struct nfs_rpc_ops nfs_v4_clientops;
+extern struct rpc_version nfs_version2;
+extern struct rpc_version nfs_version3;
+extern struct rpc_version nfs_version4;
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-12 18:34:45 +0000