- 根目录:
- include
- linux
- nfs_xdr.h
#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H
#include <linux/nfsacl.h>
#include <linux/nfs3.h>
#include <linux/sunrpc/gss_api.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)
/* Forward declaration for NFS v3 */
struct nfs4_secinfo_flavors;
struct nfs_fsid {
uint64_t major;
uint64_t minor;
};
/*
* Helper for checking equality between 2 fsids.
*/
static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b)
{
return a->major == b->major && a->minor == b->minor;
}
struct nfs_fattr {
unsigned int valid; /* which fields are valid */
umode_t mode;
__u32 nlink;
__u32 uid;
__u32 gid;
dev_t rdev;
__u64 size;
union {
struct {
__u32 blocksize;
__u32 blocks;
} nfs2;
struct {
__u64 used;
} nfs3;
} du;
struct nfs_fsid fsid;
__u64 fileid;
__u64 mounted_on_fileid;
struct timespec atime;
struct timespec mtime;
struct timespec ctime;
__u64 change_attr; /* NFSv4 change attribute */
__u64 pre_change_attr;/* pre-op NFSv4 change attribute */
__u64 pre_size; /* pre_op_attr.size */
struct timespec pre_mtime; /* pre_op_attr.mtime */
struct timespec pre_ctime; /* pre_op_attr.ctime */
unsigned long time_start;
unsigned long gencount;
};
#define NFS_ATTR_FATTR_TYPE (1U << 0)
#define NFS_ATTR_FATTR_MODE (1U << 1)
#define NFS_ATTR_FATTR_NLINK (1U << 2)
#define NFS_ATTR_FATTR_OWNER (1U << 3)
#define NFS_ATTR_FATTR_GROUP (1U << 4)
#define NFS_ATTR_FATTR_RDEV (1U << 5)
#define NFS_ATTR_FATTR_SIZE (1U << 6)
#define NFS_ATTR_FATTR_PRESIZE (1U << 7)
#define NFS_ATTR_FATTR_BLOCKS_USED (1U << 8)
#define NFS_ATTR_FATTR_SPACE_USED (1U << 9)
#define NFS_ATTR_FATTR_FSID (1U << 10)
#define NFS_ATTR_FATTR_FILEID (1U << 11)
#define NFS_ATTR_FATTR_ATIME (1U << 12)
#define NFS_ATTR_FATTR_MTIME (1U << 13)
#define NFS_ATTR_FATTR_CTIME (1U << 14)
#define NFS_ATTR_FATTR_PREMTIME (1U << 15)
#define NFS_ATTR_FATTR_PRECTIME (1U << 16)
#define NFS_ATTR_FATTR_CHANGE (1U << 17)
#define NFS_ATTR_FATTR_PRECHANGE (1U << 18)
#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 19) /* NFSv4 referral */
#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 20) /* Treat as mountpoint */
#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 21)
#define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
| NFS_ATTR_FATTR_MODE \
| NFS_ATTR_FATTR_NLINK \
| NFS_ATTR_FATTR_OWNER \
| NFS_ATTR_FATTR_GROUP \
| NFS_ATTR_FATTR_RDEV \
| NFS_ATTR_FATTR_SIZE \
| NFS_ATTR_FATTR_FSID \
| NFS_ATTR_FATTR_FILEID \
| NFS_ATTR_FATTR_ATIME \
| NFS_ATTR_FATTR_MTIME \
| NFS_ATTR_FATTR_CTIME)
#define NFS_ATTR_FATTR_V2 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_BLOCKS_USED)
#define NFS_ATTR_FATTR_V3 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_SPACE_USED)
#define NFS_ATTR_FATTR_V4 (NFS_ATTR_FATTR \
| NFS_ATTR_FATTR_SPACE_USED \
| NFS_ATTR_FATTR_CHANGE)
/*
* 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;
struct timespec time_delta; /* server time granularity */
__u32 lease_time; /* in seconds */
__u32 layouttype; /* supported pnfs layout driver */
};
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;
/* nfs41 sessions channel attributes */
struct nfs4_channel_attrs {
u32 headerpadsz;
u32 max_rqst_sz;
u32 max_resp_sz;
u32 max_resp_sz_cached;
u32 max_ops;
u32 max_reqs;
};
/* nfs41 sessions slot seqid */
struct nfs4_slot {
u32 seq_nr;
};
struct nfs4_sequence_args {
struct nfs4_session *sa_session;
u8 sa_slotid;
u8 sa_cache_this;
};
struct nfs4_sequence_res {
struct nfs4_session *sr_session;
struct nfs4_slot *sr_slot; /* slot used to send request */
int sr_status; /* sequence operation status */
unsigned long sr_renewal_time;
u32 sr_status_flags;
};
struct nfs4_get_lease_time_args {
struct nfs4_sequence_args la_seq_args;
};
struct nfs4_get_lease_time_res {
struct nfs_fsinfo *lr_fsinfo;
struct nfs4_sequence_res lr_seq_res;
};
#define PNFS_LAYOUT_MAXSIZE 4096
struct nfs4_layoutdriver_data {
struct page **pages;
__u32 pglen;
__u32 len;
};
struct pnfs_layout_range {
u32 iomode;
u64 offset;
u64 length;
};
struct nfs4_layoutget_args {
__u32 type;
struct pnfs_layout_range range;
__u64 minlength;
__u32 maxcount;
struct inode *inode;
struct nfs_open_context *ctx;
struct nfs4_sequence_args seq_args;
nfs4_stateid stateid;
struct nfs4_layoutdriver_data layout;
};
struct nfs4_layoutget_res {
__u32 return_on_close;
struct pnfs_layout_range range;
__u32 type;
nfs4_stateid stateid;
struct nfs4_sequence_res seq_res;
struct nfs4_layoutdriver_data *layoutp;
};
struct nfs4_layoutget {
struct nfs4_layoutget_args args;
struct nfs4_layoutget_res res;
struct pnfs_layout_segment **lsegpp;
gfp_t gfp_flags;
};
struct nfs4_getdeviceinfo_args {
struct pnfs_device *pdev;
struct nfs4_sequence_args seq_args;
};
struct nfs4_getdeviceinfo_res {
struct pnfs_device *pdev;
struct nfs4_sequence_res seq_res;
};
struct nfs4_layoutcommit_args {
nfs4_stateid stateid;
__u64 lastbytewritten;
struct inode *inode;
const u32 *bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_layoutcommit_res {
struct nfs_fattr *fattr;
const struct nfs_server *server;
struct nfs4_sequence_res seq_res;
};
struct nfs4_layoutcommit_data {
struct rpc_task task;
struct nfs_fattr fattr;
struct pnfs_layout_segment *lseg;
struct rpc_cred *cred;
struct nfs4_layoutcommit_args args;
struct nfs4_layoutcommit_res res;
};
/*
* Arguments to the open call.
*/
struct nfs_openargs {
const struct nfs_fh * fh;
struct nfs_seqid * seqid;
int open_flags;
fmode_t fmode;
__u64 clientid;
__u64 id;
union {
struct {
struct iattr * attrs; /* UNCHECKED, GUARDED */
nfs4_verifier verifier; /* EXCLUSIVE */
};
nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
fmode_t delegation_type; /* CLAIM_PREVIOUS */
} u;
const struct qstr * name;
const struct nfs_server *server; /* Needed for ID mapping */
const u32 * bitmask;
__u32 claim;
struct nfs4_sequence_args seq_args;
};
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;
struct nfs_seqid * seqid;
const struct nfs_server *server;
fmode_t delegation_type;
nfs4_stateid delegation;
__u32 do_recall;
__u64 maxsize;
__u32 attrset[NFS4_BITMAP_SIZE];
struct nfs4_sequence_res seq_res;
};
/*
* 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;
struct nfs_seqid * seqid;
};
/*
* Arguments to the close call.
*/
struct nfs_closeargs {
struct nfs_fh * fh;
nfs4_stateid * stateid;
struct nfs_seqid * seqid;
fmode_t fmode;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs_closeres {
nfs4_stateid stateid;
struct nfs_fattr * fattr;
struct nfs_seqid * seqid;
const struct nfs_server *server;
struct nfs4_sequence_res seq_res;
};
/*
* * Arguments to the lock,lockt, and locku call.
* */
struct nfs_lowner {
__u64 clientid;
__u64 id;
dev_t s_dev;
};
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 nfs4_sequence_args seq_args;
};
struct nfs_lock_res {
nfs4_stateid stateid;
struct nfs_seqid * lock_seqid;
struct nfs_seqid * open_seqid;
struct nfs4_sequence_res seq_res;
};
struct nfs_locku_args {
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_seqid * seqid;
nfs4_stateid * stateid;
struct nfs4_sequence_args seq_args;
};
struct nfs_locku_res {
nfs4_stateid stateid;
struct nfs_seqid * seqid;
struct nfs4_sequence_res seq_res;
};
struct nfs_lockt_args {
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_lowner lock_owner;
struct nfs4_sequence_args seq_args;
};
struct nfs_lockt_res {
struct file_lock * denied; /* LOCK, LOCKT failed */
struct nfs4_sequence_res seq_res;
};
struct nfs_release_lockowner_args {
struct nfs_lowner lock_owner;
};
struct nfs4_delegreturnargs {
const struct nfs_fh *fhandle;
const nfs4_stateid *stateid;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_delegreturnres {
struct nfs_fattr * fattr;
const struct nfs_server *server;
struct nfs4_sequence_res seq_res;
};
/*
* Arguments to the read call.
*/
struct nfs_readargs {
struct nfs_fh * fh;
struct nfs_open_context *context;
struct nfs_lock_context *lock_context;
__u64 offset;
__u32 count;
unsigned int pgbase;
struct page ** pages;
struct nfs4_sequence_args seq_args;
};
struct nfs_readres {
struct nfs_fattr * fattr;
__u32 count;
int eof;
struct nfs4_sequence_res seq_res;
};
/*
* Arguments to the write call.
*/
struct nfs_writeargs {
struct nfs_fh * fh;
struct nfs_open_context *context;
struct nfs_lock_context *lock_context;
__u64 offset;
__u32 count;
enum nfs3_stable_how stable;
unsigned int pgbase;
struct page ** pages;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs_writeverf {
enum nfs3_stable_how committed;
__be32 verifier[2];
};
struct nfs_writeres {
struct nfs_fattr * fattr;
struct nfs_writeverf * verf;
__u32 count;
const struct nfs_server *server;
struct nfs4_sequence_res seq_res;
};
/*
* Common arguments to the unlink call
*/
struct nfs_removeargs {
const struct nfs_fh *fh;
struct qstr name;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs_removeres {
const struct nfs_server *server;
struct nfs_fattr *dir_attr;
struct nfs4_change_info cinfo;
struct nfs4_sequence_res seq_res;
};
/*
* Common arguments to the rename call
*/
struct nfs_renameargs {
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_sequence_args seq_args;
};
struct nfs_renameres {
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_sequence_res seq_res;
};
/*
* 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;
unsigned char d_type;
struct nfs_server * server;
};
/*
* 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_setattrargs {
struct nfs_fh * fh;
nfs4_stateid stateid;
struct iattr * iap;
const struct nfs_server * server; /* Needed for name mapping */
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs_setaclargs {
struct nfs_fh * fh;
size_t acl_len;
unsigned int acl_pgbase;
struct page ** acl_pages;
struct nfs4_sequence_args seq_args;
};
struct nfs_setaclres {
struct nfs4_sequence_res seq_res;
};
struct nfs_getaclargs {
struct nfs_fh * fh;
size_t acl_len;
unsigned int acl_pgbase;
struct page ** acl_pages;
struct nfs4_sequence_args seq_args;
};
struct nfs_getaclres {
size_t acl_len;
struct nfs4_sequence_res seq_res;
};
struct nfs_setattrres {
struct nfs_fattr * fattr;
const struct nfs_server * server;
struct nfs4_sequence_res seq_res;
};
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;
struct page ** pages;
unsigned int pathlen;
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;
size_t len;
unsigned int npages;
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;
__be32 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;
struct page ** pages;
unsigned int pathlen;
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_linkargs {
struct nfs_fh * fromfh;
struct nfs_fh * tofh;
const char * toname;
unsigned int tolen;
};
struct nfs3_readdirargs {
struct nfs_fh * fh;
__u64 cookie;
__be32 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_linkres {
struct nfs_fattr * dir_attr;
struct nfs_fattr * fattr;
};
struct nfs3_readdirres {
struct nfs_fattr * dir_attr;
__be32 * 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;
const u32 * bitmask;
u32 access;
struct nfs4_sequence_args seq_args;
};
struct nfs4_accessres {
const struct nfs_server * server;
struct nfs_fattr * fattr;
u32 supported;
u32 access;
struct nfs4_sequence_res seq_res;
};
struct nfs4_create_arg {
u32 ftype;
union {
struct {
struct page ** pages;
unsigned int len;
} 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_sequence_args seq_args;
};
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_sequence_res seq_res;
};
struct nfs4_fsinfo_arg {
const struct nfs_fh * fh;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_fsinfo_res {
struct nfs_fsinfo *fsinfo;
struct nfs4_sequence_res seq_res;
};
struct nfs4_getattr_arg {
const struct nfs_fh * fh;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_getattr_res {
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs4_sequence_res seq_res;
};
struct nfs4_link_arg {
const struct nfs_fh * fh;
const struct nfs_fh * dir_fh;
const struct qstr * name;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
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_sequence_res seq_res;
};
struct nfs4_lookup_arg {
const struct nfs_fh * dir_fh;
const struct qstr * name;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_lookup_res {
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs_fh * fh;
struct nfs4_sequence_res seq_res;
};
struct nfs4_lookup_root_arg {
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_pathconf_arg {
const struct nfs_fh * fh;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_pathconf_res {
struct nfs_pathconf *pathconf;
struct nfs4_sequence_res seq_res;
};
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;
int plus;
struct nfs4_sequence_args seq_args;
};
struct nfs4_readdir_res {
nfs4_verifier verifier;
unsigned int pgbase;
struct nfs4_sequence_res seq_res;
};
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_sequence_args seq_args;
};
struct nfs4_readlink_res {
struct nfs4_sequence_res seq_res;
};
#define NFS4_SETCLIENTID_NAMELEN (127)
struct nfs4_setclientid {
const nfs4_verifier * sc_verifier;
unsigned int sc_name_len;
char sc_name[NFS4_SETCLIENTID_NAMELEN + 1];
u32 sc_prog;
unsigned int sc_netid_len;
char sc_netid[RPCBIND_MAXNETIDLEN + 1];
unsigned int sc_uaddr_len;
char sc_uaddr[RPCBIND_MAXUADDRLEN + 1];
u32 sc_cb_ident;
};
struct nfs4_setclientid_res {
u64 clientid;
nfs4_verifier confirm;
};
struct nfs4_statfs_arg {
const struct nfs_fh * fh;
const u32 * bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_statfs_res {
struct nfs_fsstat *fsstat;
struct nfs4_sequence_res seq_res;
};
struct nfs4_server_caps_arg {
struct nfs_fh *fhandle;
struct nfs4_sequence_args seq_args;
};
struct nfs4_server_caps_res {
u32 attr_bitmask[2];
u32 acl_bitmask;
u32 has_links;
u32 has_symlinks;
struct nfs4_sequence_res seq_res;
};
struct nfs4_string {
unsigned int len;
char *data;
};
#define NFS4_PATHNAME_MAXCOMPONENTS 512
struct nfs4_pathname {
unsigned int ncomponents;
struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS];
};
#define NFS4_FS_LOCATION_MAXSERVERS 10
struct nfs4_fs_location {
unsigned int nservers;
struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS];
struct nfs4_pathname rootpath;
};
#define NFS4_FS_LOCATIONS_MAXENTRIES 10
struct nfs4_fs_locations {
struct nfs_fattr fattr;
const struct nfs_server *server;
struct nfs4_pathname fs_path;
int nlocations;
struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES];
};
struct nfs4_fs_locations_arg {
const struct nfs_fh *dir_fh;
const struct qstr *name;
struct page *page;
const u32 *bitmask;
struct nfs4_sequence_args seq_args;
};
struct nfs4_fs_locations_res {
struct nfs4_fs_locations *fs_locations;
struct nfs4_sequence_res seq_res;
};
struct nfs4_secinfo_oid {
unsigned int len;
char data[GSS_OID_MAX_LEN];
};
struct nfs4_secinfo_gss {
struct nfs4_secinfo_oid sec_oid4;
unsigned int qop4;
unsigned int service;
};
struct nfs4_secinfo_flavor {
unsigned int flavor;
struct nfs4_secinfo_gss gss;
};
struct nfs4_secinfo_flavors {
unsigned int num_flavors;
struct nfs4_secinfo_flavor flavors[0];
};
struct nfs4_secinfo_arg {
const struct nfs_fh *dir_fh;
const struct qstr *name;
struct nfs4_sequence_args seq_args;
};
struct nfs4_secinfo_res {
struct nfs4_secinfo_flavors *flavors;
struct nfs4_sequence_res seq_res;
};
#endif /* CONFIG_NFS_V4 */
struct nfstime4 {
u64 seconds;
u32 nseconds;
};
#ifdef CONFIG_NFS_V4_1
struct nfs_impl_id4 {
u32 domain_len;
char *domain;
u32 name_len;
char *name;
struct nfstime4 date;
};
#define NFS4_EXCHANGE_ID_LEN (48)
struct nfs41_exchange_id_args {
struct nfs_client *client;
nfs4_verifier *verifier;
unsigned int id_len;
char id[NFS4_EXCHANGE_ID_LEN];
u32 flags;
};
struct server_owner {
uint64_t minor_id;
uint32_t major_id_sz;
char major_id[NFS4_OPAQUE_LIMIT];
};
struct server_scope {
uint32_t server_scope_sz;
char server_scope[NFS4_OPAQUE_LIMIT];
};
struct nfs41_exchange_id_res {
struct nfs_client *client;
u32 flags;
};
struct nfs41_create_session_args {
struct nfs_client *client;
uint32_t flags;
uint32_t cb_program;
struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
struct nfs4_channel_attrs bc_attrs; /* Back Channel */
};
struct nfs41_create_session_res {
struct nfs_client *client;
};
struct nfs41_reclaim_complete_args {
/* In the future extend to include curr_fh for use with migration */
unsigned char one_fs:1;
struct nfs4_sequence_args seq_args;
};
struct nfs41_reclaim_complete_res {
struct nfs4_sequence_res seq_res;
};
#endif /* CONFIG_NFS_V4_1 */
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;
unsigned int npages; /* Max length of pagevec */
struct nfs_readargs args;
struct nfs_readres res;
unsigned long timestamp; /* For lease renewal */
struct pnfs_layout_segment *lseg;
struct nfs_client *ds_clp; /* pNFS data server */
const struct rpc_call_ops *mds_ops;
int (*read_done_cb) (struct rpc_task *task, struct nfs_read_data *data);
__u64 mds_offset;
struct page *page_array[NFS_PAGEVEC_SIZE];
};
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;
unsigned int npages; /* Max length of pagevec */
struct nfs_writeargs args; /* argument struct */
struct nfs_writeres res; /* result struct */
struct pnfs_layout_segment *lseg;
struct nfs_client *ds_clp; /* pNFS data server */
int ds_commit_index;
const struct rpc_call_ops *mds_ops;
int (*write_done_cb) (struct rpc_task *task, struct nfs_write_data *data);
#ifdef CONFIG_NFS_V4
unsigned long timestamp; /* For lease renewal */
#endif
__u64 mds_offset; /* Filelayout dense stripe */
struct page *page_array[NFS_PAGEVEC_SIZE];
};
struct nfs_access_entry;
struct nfs_client;
struct rpc_timeout;
/*
* RPC procedure vector for NFSv2/NFSv3 demuxing
*/
struct nfs_rpc_ops {
u32 version; /* Protocol version */
const struct dentry_operations *dentry_ops;
const struct inode_operations *dir_inode_ops;
const struct inode_operations *file_inode_ops;
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
int (*lookupfh)(struct nfs_server *, struct nfs_fh *,
struct qstr *, struct nfs_fh *,
struct nfs_fattr *);
int (*getattr) (struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *);
int (*setattr) (struct dentry *, struct nfs_fattr *,
struct iattr *);
int (*lookup) (struct rpc_clnt *clnt, 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 (*create) (struct inode *, struct dentry *,
struct iattr *, int, struct nfs_open_context *);
int (*remove) (struct inode *, struct qstr *);
void (*unlink_setup) (struct rpc_message *, struct inode *dir);
int (*unlink_done) (struct rpc_task *, struct inode *);
int (*rename) (struct inode *, struct qstr *,
struct inode *, struct qstr *);
void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
int (*link) (struct inode *, struct inode *, struct qstr *);
int (*symlink) (struct inode *, struct dentry *, struct page *,
unsigned int, struct iattr *);
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 *);
int (*set_capabilities)(struct nfs_server *, struct nfs_fh *);
int (*decode_dirent)(struct xdr_stream *, struct nfs_entry *, int);
void (*read_setup) (struct nfs_read_data *, struct rpc_message *);
int (*read_done) (struct rpc_task *, struct nfs_read_data *);
void (*write_setup) (struct nfs_write_data *, struct rpc_message *);
int (*write_done) (struct rpc_task *, struct nfs_write_data *);
void (*commit_setup) (struct nfs_write_data *, struct rpc_message *);
int (*commit_done) (struct rpc_task *, struct nfs_write_data *);
int (*lock)(struct file *, int, struct file_lock *);
int (*lock_check_bounds)(const struct file_lock *);
void (*clear_acl_cache)(struct inode *);
void (*close_context)(struct nfs_open_context *ctx, int);
struct inode * (*open_context) (struct inode *dir,
struct nfs_open_context *ctx,
int open_flags,
struct iattr *iattr);
int (*init_client) (struct nfs_client *, const struct rpc_timeout *,
const char *, rpc_authflavor_t, int);
int (*secinfo)(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
};
/*
* 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 const struct nfs_rpc_ops nfs_v2_clientops;
extern const struct nfs_rpc_ops nfs_v3_clientops;
extern const 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