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#ifndef _LINUX_NFS_XDR_H #define _LINUX_NFS_XDR_H #include <linux/sunrpc/xprt.h> #include <linux/nfsacl.h> /* * To change the maximum rsize and wsize supported by the NFS client, adjust * NFS_MAX_FILE_IO_SIZE. 64KB is a typical maximum, but some servers can * support a megabyte or more. The default is left at 4096 bytes, which is * reasonable for NFS over UDP. */ #define NFS_MAX_FILE_IO_SIZE (1048576U) #define NFS_DEF_FILE_IO_SIZE (4096U) #define NFS_MIN_FILE_IO_SIZE (1024U) 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 time_start; }; #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; }; struct nfs_seqid; /* * Arguments to the open call. */ struct nfs_openargs { const struct nfs_fh * fh; struct nfs_seqid * 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; struct nfs_fattr * dir_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; struct nfs_seqid * seqid; }; struct nfs_open_confirmres { nfs4_stateid stateid; }; /* * Arguments to the close call. */ struct nfs_closeargs { struct nfs_fh * fh; nfs4_stateid * stateid; struct nfs_seqid * seqid; int open_flags; const u32 * bitmask; }; struct nfs_closeres { nfs4_stateid stateid; struct nfs_fattr * fattr; const struct nfs_server *server; }; /* * * Arguments to the lock,lockt, and locku call. * */ struct nfs_lowner { __u64 clientid; u32 id; }; struct nfs_lock_args { struct nfs_fh * fh; struct file_lock * fl; struct nfs_seqid * lock_seqid; nfs4_stateid * lock_stateid; struct nfs_seqid * open_seqid; nfs4_stateid * open_stateid; struct nfs_lowner lock_owner; unsigned char block : 1; unsigned char reclaim : 1; unsigned char new_lock_owner : 1; }; struct nfs_lock_res { nfs4_stateid stateid; }; struct nfs_locku_args { struct nfs_fh * fh; struct file_lock * fl; struct nfs_seqid * seqid; nfs4_stateid * stateid; }; struct nfs_locku_res { nfs4_stateid stateid; }; struct nfs_lockt_args { struct nfs_fh * fh; struct file_lock * fl; struct nfs_lowner lock_owner; }; struct nfs_lockt_res { struct file_lock * denied; /* LOCK, LOCKT failed */ }; struct nfs4_delegreturnargs { const struct nfs_fh *fhandle; const nfs4_stateid *stateid; const u32 * bitmask; }; struct nfs4_delegreturnres { struct nfs_fattr * fattr; const struct nfs_server *server; }; /* * Arguments to the read call. */ 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. */ 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; const u32 * bitmask; }; struct nfs_writeverf { enum nfs3_stable_how committed; __u32 verifier[2]; }; struct nfs_writeres { struct nfs_fattr * fattr; struct nfs_writeverf * verf; __u32 count; const struct nfs_server *server; }; /* * 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_setaclargs { struct nfs_fh * fh; size_t acl_len; unsigned int acl_pgbase; struct page ** acl_pages; }; struct nfs_getaclargs { struct nfs_fh * fh; size_t acl_len; unsigned int acl_pgbase; struct page ** acl_pages; }; 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 nfs3_getaclargs { struct nfs_fh * fh; int mask; struct page ** pages; }; struct nfs3_setaclargs { struct inode * inode; int mask; struct posix_acl * acl_access; struct posix_acl * acl_default; 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; }; struct nfs3_getaclres { struct nfs_fattr * fattr; int mask; unsigned int acl_access_count; unsigned int acl_default_count; struct posix_acl * acl_access; struct posix_acl * acl_default; }; #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 nfs_fattr * dir_fattr; }; 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; const u32 * bitmask; }; struct nfs4_link_res { const struct nfs_server * server; struct nfs_fattr * fattr; struct nfs4_change_info cinfo; struct nfs_fattr * dir_attr; }; 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; const u32 * bitmask; }; struct nfs4_remove_res { const struct nfs_server * server; struct nfs4_change_info cinfo; struct nfs_fattr * dir_attr; }; 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; const u32 * bitmask; }; struct nfs4_rename_res { const struct nfs_server * server; struct nfs4_change_info old_cinfo; struct nfs_fattr * old_fattr; struct nfs4_change_info new_cinfo; struct nfs_fattr * new_fattr; }; 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; #define NFS_PAGEVEC_SIZE (8U) 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; 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 page *page_array[NFS_PAGEVEC_SIZE + 1]; }; 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; 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 page *page_array[NFS_PAGEVEC_SIZE + 1]; }; 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; struct inode_operations *file_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, struct nameidata *); 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 *); void (*clear_acl_cache)(struct inode *); }; /* * 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; extern struct rpc_version nfsacl_version3; extern struct rpc_program nfsacl_program; #endif