blob: becf812f4ed521674994ab72c5d98aa86ba1e2f5 [file] [log] [blame]
#ifndef _LINUX_NFS_XDR_H
#define _LINUX_NFS_XDR_H
#include <linux/nfsacl.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)
struct nfs4_string {
unsigned int len;
char *data;
};
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 nfs4_threshold {
__u32 bm;
__u32 l_type;
__u64 rd_sz;
__u64 wr_sz;
__u64 rd_io_sz;
__u64 wr_io_sz;
};
struct nfs_fattr {
unsigned int valid; /* which fields are valid */
umode_t mode;
__u32 nlink;
kuid_t uid;
kgid_t 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;
struct nfs4_string *owner_name;
struct nfs4_string *group_name;
struct nfs4_threshold *mdsthreshold; /* pNFS threshold hints */
};
#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_LOCATIONS (1U << 19)
#define NFS_ATTR_FATTR_V4_REFERRAL (1U << 20)
#define NFS_ATTR_FATTR_MOUNTPOINT (1U << 21)
#define NFS_ATTR_FATTR_MOUNTED_ON_FILEID (1U << 22)
#define NFS_ATTR_FATTR_OWNER_NAME (1U << 23)
#define NFS_ATTR_FATTR_GROUP_NAME (1U << 24)
#define NFS_ATTR_FATTR_V4_SECURITY_LABEL (1U << 25)
#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 \
| NFS_ATTR_FATTR_CHANGE)
#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_V4_SECURITY_LABEL)
/*
* 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 */
__u32 blksize; /* preferred pnfs io block size */
__u32 clone_blksize; /* granularity of a CLONE operation */
};
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 max_rqst_sz;
u32 max_resp_sz;
u32 max_resp_sz_cached;
u32 max_ops;
u32 max_reqs;
};
struct nfs4_slot;
struct nfs4_sequence_args {
struct nfs4_slot *sa_slot;
u8 sa_cache_this : 1,
sa_privileged : 1;
};
struct nfs4_sequence_res {
struct nfs4_slot *sr_slot; /* slot used to send request */
unsigned long sr_timestamp;
int sr_status; /* sequence operation status */
u32 sr_status_flags;
u32 sr_highest_slotid;
u32 sr_target_highest_slotid;
};
struct nfs4_get_lease_time_args {
struct nfs4_sequence_args la_seq_args;
};
struct nfs4_get_lease_time_res {
struct nfs4_sequence_res lr_seq_res;
struct nfs_fsinfo *lr_fsinfo;
};
#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 {
struct nfs4_sequence_args seq_args;
__u32 type;
struct pnfs_layout_range range;
__u64 minlength;
__u32 maxcount;
struct inode *inode;
struct nfs_open_context *ctx;
nfs4_stateid stateid;
struct nfs4_layoutdriver_data layout;
};
struct nfs4_layoutget_res {
struct nfs4_sequence_res seq_res;
__u32 return_on_close;
struct pnfs_layout_range range;
__u32 type;
nfs4_stateid stateid;
struct nfs4_layoutdriver_data *layoutp;
};
struct nfs4_layoutget {
struct nfs4_layoutget_args args;
struct nfs4_layoutget_res res;
struct rpc_cred *cred;
gfp_t gfp_flags;
};
struct nfs4_getdeviceinfo_args {
struct nfs4_sequence_args seq_args;
struct pnfs_device *pdev;
__u32 notify_types;
};
struct nfs4_getdeviceinfo_res {
struct nfs4_sequence_res seq_res;
struct pnfs_device *pdev;
__u32 notification;
};
struct nfs4_layoutcommit_args {
struct nfs4_sequence_args seq_args;
nfs4_stateid stateid;
__u64 lastbytewritten;
struct inode *inode;
const u32 *bitmask;
size_t layoutupdate_len;
struct page *layoutupdate_page;
struct page **layoutupdate_pages;
__be32 *start_p;
};
struct nfs4_layoutcommit_res {
struct nfs4_sequence_res seq_res;
struct nfs_fattr *fattr;
const struct nfs_server *server;
int status;
};
struct nfs4_layoutcommit_data {
struct rpc_task task;
struct nfs_fattr fattr;
struct list_head lseg_list;
struct rpc_cred *cred;
struct inode *inode;
struct nfs4_layoutcommit_args args;
struct nfs4_layoutcommit_res res;
};
struct nfs4_layoutreturn_args {
struct nfs4_sequence_args seq_args;
struct pnfs_layout_hdr *layout;
struct inode *inode;
struct pnfs_layout_range range;
nfs4_stateid stateid;
__u32 layout_type;
};
struct nfs4_layoutreturn_res {
struct nfs4_sequence_res seq_res;
u32 lrs_present;
nfs4_stateid stateid;
};
struct nfs4_layoutreturn {
struct nfs4_layoutreturn_args args;
struct nfs4_layoutreturn_res res;
struct rpc_cred *cred;
struct nfs_client *clp;
struct inode *inode;
int rpc_status;
};
#define PNFS_LAYOUTSTATS_MAXSIZE 256
struct nfs42_layoutstat_args;
struct nfs42_layoutstat_devinfo;
typedef void (*layoutstats_encode_t)(struct xdr_stream *,
struct nfs42_layoutstat_args *,
struct nfs42_layoutstat_devinfo *);
/* Per file per deviceid layoutstats */
struct nfs42_layoutstat_devinfo {
struct nfs4_deviceid dev_id;
__u64 offset;
__u64 length;
__u64 read_count;
__u64 read_bytes;
__u64 write_count;
__u64 write_bytes;
__u32 layout_type;
layoutstats_encode_t layoutstats_encode;
void *layout_private;
};
struct nfs42_layoutstat_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
struct inode *inode;
nfs4_stateid stateid;
int num_dev;
struct nfs42_layoutstat_devinfo *devinfo;
};
struct nfs42_layoutstat_res {
struct nfs4_sequence_res seq_res;
int num_dev;
int rpc_status;
};
struct nfs42_layoutstat_data {
struct inode *inode;
struct nfs42_layoutstat_args args;
struct nfs42_layoutstat_res res;
};
struct nfs42_clone_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *src_fh;
struct nfs_fh *dst_fh;
nfs4_stateid src_stateid;
nfs4_stateid dst_stateid;
__u64 src_offset;
__u64 dst_offset;
__u64 count;
const u32 *dst_bitmask;
};
struct nfs42_clone_res {
struct nfs4_sequence_res seq_res;
unsigned int rpc_status;
struct nfs_fattr *dst_fattr;
const struct nfs_server *server;
};
struct stateowner_id {
__u64 create_time;
__u32 uniquifier;
};
/*
* Arguments to the open call.
*/
struct nfs_openargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
struct nfs_seqid * seqid;
int open_flags;
fmode_t fmode;
u32 share_access;
u32 access;
__u64 clientid;
struct stateowner_id id;
union {
struct {
struct iattr * attrs; /* UNCHECKED, GUARDED, EXCLUSIVE4_1 */
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;
const u32 * open_bitmap;
enum open_claim_type4 claim;
enum createmode4 createmode;
const struct nfs4_label *label;
};
struct nfs_openres {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_fh fh;
struct nfs4_change_info cinfo;
__u32 rflags;
struct nfs_fattr * f_attr;
struct nfs4_label *f_label;
struct nfs_seqid * seqid;
const struct nfs_server *server;
fmode_t delegation_type;
nfs4_stateid delegation;
unsigned long pagemod_limit;
__u32 do_recall;
__u32 attrset[NFS4_BITMAP_SIZE];
struct nfs4_string *owner;
struct nfs4_string *group_owner;
__u32 access_request;
__u32 access_supported;
__u32 access_result;
};
/*
* Arguments to the open_confirm call.
*/
struct nfs_open_confirmargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
nfs4_stateid * stateid;
struct nfs_seqid * seqid;
};
struct nfs_open_confirmres {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
};
/*
* Arguments to the close call.
*/
struct nfs_closeargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
fmode_t fmode;
u32 share_access;
const u32 * bitmask;
};
struct nfs_closeres {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_fattr * fattr;
struct nfs_seqid * seqid;
const struct nfs_server *server;
};
/*
* * Arguments to the lock,lockt, and locku call.
* */
struct nfs_lowner {
__u64 clientid;
__u64 id;
dev_t s_dev;
};
struct nfs_lock_args {
struct nfs4_sequence_args seq_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 : 1;
unsigned char new_lock_owner : 1;
};
struct nfs_lock_res {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_seqid * lock_seqid;
struct nfs_seqid * open_seqid;
};
struct nfs_locku_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_seqid * seqid;
nfs4_stateid stateid;
};
struct nfs_locku_res {
struct nfs4_sequence_res seq_res;
nfs4_stateid stateid;
struct nfs_seqid * seqid;
};
struct nfs_lockt_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct file_lock * fl;
struct nfs_lowner lock_owner;
};
struct nfs_lockt_res {
struct nfs4_sequence_res seq_res;
struct file_lock * denied; /* LOCK, LOCKT failed */
};
struct nfs_release_lockowner_args {
struct nfs4_sequence_args seq_args;
struct nfs_lowner lock_owner;
};
struct nfs_release_lockowner_res {
struct nfs4_sequence_res seq_res;
};
struct nfs4_delegreturnargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fhandle;
const nfs4_stateid *stateid;
const u32 * bitmask;
};
struct nfs4_delegreturnres {
struct nfs4_sequence_res seq_res;
struct nfs_fattr * fattr;
struct nfs_server *server;
};
/*
* Arguments to the write call.
*/
struct nfs_write_verifier {
char data[8];
};
struct nfs_writeverf {
struct nfs_write_verifier verifier;
enum nfs3_stable_how committed;
};
/*
* Arguments shared by the read and write call.
*/
struct nfs_pgio_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
struct nfs_open_context *context;
struct nfs_lock_context *lock_context;
nfs4_stateid stateid;
__u64 offset;
__u32 count;
unsigned int pgbase;
struct page ** pages;
const u32 * bitmask; /* used by write */
enum nfs3_stable_how stable; /* used by write */
};
struct nfs_pgio_res {
struct nfs4_sequence_res seq_res;
struct nfs_fattr * fattr;
__u32 count;
__u32 op_status;
int eof; /* used by read */
struct nfs_writeverf * verf; /* used by write */
const struct nfs_server *server; /* used by write */
};
/*
* Arguments to the commit call.
*/
struct nfs_commitargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fh;
__u64 offset;
__u32 count;
const u32 *bitmask;
};
struct nfs_commitres {
struct nfs4_sequence_res seq_res;
__u32 op_status;
struct nfs_fattr *fattr;
struct nfs_writeverf *verf;
const struct nfs_server *server;
};
/*
* Common arguments to the unlink call
*/
struct nfs_removeargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fh;
struct qstr name;
};
struct nfs_removeres {
struct nfs4_sequence_res seq_res;
struct nfs_server *server;
struct nfs_fattr *dir_attr;
struct nfs4_change_info cinfo;
};
/*
* Common arguments to the rename call
*/
struct nfs_renameargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *old_dir;
const struct nfs_fh *new_dir;
const struct qstr *old_name;
const struct qstr *new_name;
};
struct nfs_renameres {
struct nfs4_sequence_res seq_res;
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;
};
/* parsed sec= options */
#define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
struct nfs_auth_info {
unsigned int flavor_len;
rpc_authflavor_t flavors[NFS_AUTH_INFO_MAX_FLAVORS];
};
/*
* 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;
struct nfs4_label *label;
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 nfs4_sequence_args seq_args;
struct nfs_fh * fh;
nfs4_stateid stateid;
struct iattr * iap;
const struct nfs_server * server; /* Needed for name mapping */
const u32 * bitmask;
const struct nfs4_label *label;
};
struct nfs_setaclargs {
struct nfs4_sequence_args seq_args;
const struct nfs_server * server;
struct nfs_fh * fh;
struct page ** acl_pages;
size_t acl_len;
};
struct nfs_setaclres {
struct nfs4_sequence_res seq_res;
};
struct nfs_getaclargs {
struct nfs4_sequence_args seq_args;
struct inode * inode;
size_t acl_len;
struct page ** acl_pages;
};
/* getxattr ACL interface flags */
#define NFS4_ACL_TRUNC 0x0001 /* ACL was truncated */
struct nfs_getaclres {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct richacl * acl;
umode_t mode;
struct page * acl_scratch;
};
struct nfs_setattrres {
struct nfs4_sequence_res seq_res;
struct nfs_fattr * fattr;
struct nfs4_label *label;
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;
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;
};
#if IS_ENABLED(CONFIG_NFS_V4)
typedef u64 clientid4;
struct nfs4_accessargs {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
u32 access;
};
struct nfs4_accessres {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
u32 supported;
u32 access;
};
struct nfs4_create_arg {
struct nfs4_sequence_args seq_args;
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;
const struct nfs4_label *label;
};
struct nfs4_create_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fh * fh;
struct nfs_fattr * fattr;
struct nfs4_label *label;
struct nfs4_change_info dir_cinfo;
};
struct nfs4_fsinfo_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_fsinfo_res {
struct nfs4_sequence_res seq_res;
struct nfs_fsinfo *fsinfo;
};
struct nfs4_getattr_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_getattr_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs4_label *label;
};
struct nfs4_link_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const struct nfs_fh * dir_fh;
const struct qstr * name;
const u32 * bitmask;
};
struct nfs4_link_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs4_label *label;
struct nfs4_change_info cinfo;
struct nfs_fattr * dir_attr;
};
struct nfs4_lookup_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * dir_fh;
const struct qstr * name;
const u32 * bitmask;
};
struct nfs4_lookup_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs_fh * fh;
struct nfs4_label *label;
};
struct nfs4_lookup_root_arg {
struct nfs4_sequence_args seq_args;
const u32 * bitmask;
};
struct nfs4_pathconf_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_pathconf_res {
struct nfs4_sequence_res seq_res;
struct nfs_pathconf *pathconf;
};
struct nfs4_readdir_arg {
struct nfs4_sequence_args seq_args;
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_readdir_res {
struct nfs4_sequence_res seq_res;
nfs4_verifier verifier;
unsigned int pgbase;
};
struct nfs4_readlink {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
unsigned int pgbase;
unsigned int pglen; /* zero-copy data */
struct page ** pages; /* zero-copy data */
};
struct nfs4_readlink_res {
struct nfs4_sequence_res seq_res;
};
struct nfs4_setclientid {
const nfs4_verifier * sc_verifier;
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];
struct nfs_client *sc_clnt;
struct rpc_cred *sc_cred;
};
struct nfs4_setclientid_res {
u64 clientid;
nfs4_verifier confirm;
};
struct nfs4_statfs_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
};
struct nfs4_statfs_res {
struct nfs4_sequence_res seq_res;
struct nfs_fsstat *fsstat;
};
struct nfs4_server_caps_arg {
struct nfs4_sequence_args seq_args;
struct nfs_fh *fhandle;
const u32 * bitmask;
};
struct nfs4_server_caps_res {
struct nfs4_sequence_res seq_res;
u32 attr_bitmask[3];
u32 exclcreat_bitmask[3];
u32 acl_bitmask;
u32 has_links;
u32 has_symlinks;
u32 fh_expire_type;
};
#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 {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *dir_fh;
const struct nfs_fh *fh;
const struct qstr *name;
struct page *page;
const u32 *bitmask;
clientid4 clientid;
unsigned char migration:1, renew:1;
};
struct nfs4_fs_locations_res {
struct nfs4_sequence_res seq_res;
struct nfs4_fs_locations *fs_locations;
unsigned char migration:1, renew:1;
};
struct nfs4_secinfo4 {
u32 flavor;
struct rpcsec_gss_info flavor_info;
};
struct nfs4_secinfo_flavors {
unsigned int num_flavors;
struct nfs4_secinfo4 flavors[0];
};
struct nfs4_secinfo_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *dir_fh;
const struct qstr *name;
};
struct nfs4_secinfo_res {
struct nfs4_sequence_res seq_res;
struct nfs4_secinfo_flavors *flavors;
};
struct nfs4_fsid_present_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh *fh;
clientid4 clientid;
unsigned char renew:1;
};
struct nfs4_fsid_present_res {
struct nfs4_sequence_res seq_res;
struct nfs_fh *fh;
unsigned char renew:1;
};
#endif /* CONFIG_NFS_V4 */
struct nfstime4 {
u64 seconds;
u32 nseconds;
};
#ifdef CONFIG_NFS_V4_1
struct pnfs_commit_bucket {
struct list_head written;
struct list_head committing;
struct pnfs_layout_segment *wlseg;
struct pnfs_layout_segment *clseg;
struct nfs_writeverf direct_verf;
};
struct pnfs_ds_commit_info {
int nwritten;
int ncommitting;
int nbuckets;
struct pnfs_commit_bucket *buckets;
};
#define NFS4_OP_MAP_NUM_LONGS \
DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
#define NFS4_OP_MAP_NUM_WORDS \
(NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
struct nfs4_op_map {
union {
unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
u32 words[NFS4_OP_MAP_NUM_WORDS];
} u;
};
struct nfs41_state_protection {
u32 how;
struct nfs4_op_map enforce;
struct nfs4_op_map allow;
};
struct nfs41_exchange_id_args {
struct nfs_client *client;
nfs4_verifier *verifier;
u32 flags;
struct nfs41_state_protection state_protect;
};
struct nfs41_server_owner {
uint64_t minor_id;
uint32_t major_id_sz;
char major_id[NFS4_OPAQUE_LIMIT];
};
struct nfs41_server_scope {
uint32_t server_scope_sz;
char server_scope[NFS4_OPAQUE_LIMIT];
};
struct nfs41_impl_id {
char domain[NFS4_OPAQUE_LIMIT + 1];
char name[NFS4_OPAQUE_LIMIT + 1];
struct nfstime4 date;
};
struct nfs41_bind_conn_to_session_args {
struct nfs_client *client;
struct nfs4_sessionid sessionid;
u32 dir;
bool use_conn_in_rdma_mode;
};
struct nfs41_bind_conn_to_session_res {
struct nfs4_sessionid sessionid;
u32 dir;
bool use_conn_in_rdma_mode;
};
struct nfs41_exchange_id_res {
u64 clientid;
u32 seqid;
u32 flags;
struct nfs41_server_owner *server_owner;
struct nfs41_server_scope *server_scope;
struct nfs41_impl_id *impl_id;
struct nfs41_state_protection state_protect;
};
struct nfs41_create_session_args {
struct nfs_client *client;
u64 clientid;
uint32_t seqid;
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 nfs4_sessionid sessionid;
uint32_t seqid;
uint32_t flags;
struct nfs4_channel_attrs fc_attrs; /* Fore Channel */
struct nfs4_channel_attrs bc_attrs; /* Back Channel */
};
struct nfs41_reclaim_complete_args {
struct nfs4_sequence_args seq_args;
/* In the future extend to include curr_fh for use with migration */
unsigned char one_fs:1;
};
struct nfs41_reclaim_complete_res {
struct nfs4_sequence_res seq_res;
};
#define SECINFO_STYLE_CURRENT_FH 0
#define SECINFO_STYLE_PARENT 1
struct nfs41_secinfo_no_name_args {
struct nfs4_sequence_args seq_args;
int style;
};
struct nfs41_test_stateid_args {
struct nfs4_sequence_args seq_args;
nfs4_stateid *stateid;
};
struct nfs41_test_stateid_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
};
struct nfs41_free_stateid_args {
struct nfs4_sequence_args seq_args;
nfs4_stateid stateid;
};
struct nfs41_free_stateid_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
};
static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
{
kfree(cinfo->buckets);
}
#else
struct pnfs_ds_commit_info {
};
static inline void
nfs_free_pnfs_ds_cinfo(struct pnfs_ds_commit_info *cinfo)
{
}
#endif /* CONFIG_NFS_V4_1 */
#ifdef CONFIG_NFS_V4_2
struct nfs42_falloc_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *falloc_fh;
nfs4_stateid falloc_stateid;
u64 falloc_offset;
u64 falloc_length;
const u32 *falloc_bitmask;
};
struct nfs42_falloc_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
struct nfs_fattr *falloc_fattr;
const struct nfs_server *falloc_server;
};
struct nfs42_copy_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *src_fh;
nfs4_stateid src_stateid;
u64 src_pos;
struct nfs_fh *dst_fh;
nfs4_stateid dst_stateid;
u64 dst_pos;
u64 count;
};
struct nfs42_write_res {
u64 count;
struct nfs_writeverf verifier;
};
struct nfs42_copy_res {
struct nfs4_sequence_res seq_res;
struct nfs42_write_res write_res;
bool consecutive;
bool synchronous;
};
struct nfs42_seek_args {
struct nfs4_sequence_args seq_args;
struct nfs_fh *sa_fh;
nfs4_stateid sa_stateid;
u64 sa_offset;
u32 sa_what;
};
struct nfs42_seek_res {
struct nfs4_sequence_res seq_res;
unsigned int status;
u32 sr_eof;
u64 sr_offset;
};
#endif
struct nfs_page;
#define NFS_PAGEVEC_SIZE (8U)
struct nfs_page_array {
struct page **pagevec;
unsigned int npages; /* Max length of pagevec */
struct page *page_array[NFS_PAGEVEC_SIZE];
};
/* used as flag bits in nfs_pgio_header */
enum {
NFS_IOHDR_ERROR = 0,
NFS_IOHDR_EOF,
NFS_IOHDR_REDO,
NFS_IOHDR_STAT,
};
struct nfs_pgio_header {
struct inode *inode;
struct rpc_cred *cred;
struct list_head pages;
struct nfs_page *req;
struct nfs_writeverf verf; /* Used for writes */
struct pnfs_layout_segment *lseg;
loff_t io_start;
const struct rpc_call_ops *mds_ops;
void (*release) (struct nfs_pgio_header *hdr);
const struct nfs_pgio_completion_ops *completion_ops;
const struct nfs_rw_ops *rw_ops;
struct nfs_direct_req *dreq;
void *layout_private;
spinlock_t lock;
/* fields protected by lock */
int pnfs_error;
int error; /* merge with pnfs_error */
unsigned long good_bytes; /* boundary of good data */
unsigned long flags;
/*
* rpc data
*/
struct rpc_task task;
struct nfs_fattr fattr;
struct nfs_pgio_args args; /* argument struct */
struct nfs_pgio_res res; /* result struct */
unsigned long timestamp; /* For lease renewal */
int (*pgio_done_cb)(struct rpc_task *, struct nfs_pgio_header *);
__u64 mds_offset; /* Filelayout dense stripe */
struct nfs_page_array page_array;
struct nfs_client *ds_clp; /* pNFS data server */
int ds_commit_idx; /* ds index if ds_clp is set */
int pgio_mirror_idx;/* mirror index in pgio layer */
};
struct nfs_mds_commit_info {
atomic_t rpcs_out;
unsigned long ncommit;
struct list_head list;
};
struct nfs_commit_info;
struct nfs_commit_data;
struct nfs_inode;
struct nfs_commit_completion_ops {
void (*completion) (struct nfs_commit_data *data);
void (*resched_write) (struct nfs_commit_info *, struct nfs_page *);
};
struct nfs_commit_info {
struct inode *inode; /* Needed for inode->i_lock */
struct nfs_mds_commit_info *mds;
struct pnfs_ds_commit_info *ds;
struct nfs_direct_req *dreq; /* O_DIRECT request */
const struct nfs_commit_completion_ops *completion_ops;
};
struct nfs_commit_data {
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 list_head list; /* lists of struct nfs_write_data */
struct nfs_direct_req *dreq; /* O_DIRECT request */
struct nfs_commitargs args; /* argument struct */
struct nfs_commitres res; /* result struct */
struct nfs_open_context *context;
struct pnfs_layout_segment *lseg;
struct nfs_client *ds_clp; /* pNFS data server */
int ds_commit_index;
loff_t lwb;
const struct rpc_call_ops *mds_ops;
const struct nfs_commit_completion_ops *completion_ops;
int (*commit_done_cb) (struct rpc_task *task, struct nfs_commit_data *data);
unsigned long flags;
};
struct nfs_pgio_completion_ops {
void (*error_cleanup)(struct list_head *head);
void (*init_hdr)(struct nfs_pgio_header *hdr);
void (*completion)(struct nfs_pgio_header *hdr);
void (*reschedule_io)(struct nfs_pgio_header *hdr);
};
struct nfs_unlinkdata {
struct nfs_removeargs args;
struct nfs_removeres res;
struct dentry *dentry;
wait_queue_head_t wq;
struct rpc_cred *cred;
struct nfs_fattr dir_attr;
long timeout;
};
struct nfs_renamedata {
struct nfs_renameargs args;
struct nfs_renameres res;
struct rpc_cred *cred;
struct inode *old_dir;
struct dentry *old_dentry;
struct nfs_fattr old_fattr;
struct inode *new_dir;
struct dentry *new_dentry;
struct nfs_fattr new_fattr;
void (*complete)(struct rpc_task *, struct nfs_renamedata *);
long timeout;
};
struct nfs_access_entry;
struct nfs_client;
struct rpc_timeout;
struct nfs_subversion;
struct nfs_mount_info;
struct nfs_client_initdata;
struct nfs_pageio_descriptor;
/*
* 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;
const struct file_operations *file_ops;
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
struct nfs_fh *, struct nfs_fattr *);
struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *,
struct nfs_subversion *);
int (*getattr) (struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *, struct nfs4_label *);
int (*setattr) (struct dentry *, struct nfs_fattr *,
struct iattr *);
int (*lookup) (struct inode *, struct qstr *,
struct nfs_fh *, struct nfs_fattr *,
struct nfs4_label *);
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);
int (*remove) (struct inode *, struct qstr *);
void (*unlink_setup) (struct rpc_message *, struct inode *dir);
void (*unlink_rpc_prepare) (struct rpc_task *, struct nfs_unlinkdata *);
int (*unlink_done) (struct rpc_task *, struct inode *);
void (*rename_setup) (struct rpc_message *msg, struct inode *dir);
void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
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);
int (*pgio_rpc_prepare)(struct rpc_task *,
struct nfs_pgio_header *);
void (*read_setup)(struct nfs_pgio_header *, struct rpc_message *);
int (*read_done)(struct rpc_task *, struct nfs_pgio_header *);
void (*write_setup)(struct nfs_pgio_header *, struct rpc_message *);
int (*write_done)(struct rpc_task *, struct nfs_pgio_header *);
void (*commit_setup) (struct nfs_commit_data *, struct rpc_message *);
void (*commit_rpc_prepare)(struct rpc_task *, struct nfs_commit_data *);
int (*commit_done) (struct rpc_task *, struct nfs_commit_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 *);
int (*have_delegation)(struct inode *, fmode_t);
int (*return_delegation)(struct inode *);
struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
struct nfs_client *
(*init_client) (struct nfs_client *, const struct rpc_timeout *,
const char *);
void (*free_client) (struct nfs_client *);
struct nfs_server *(*create_server)(struct nfs_mount_info *, struct nfs_subversion *);
struct nfs_server *(*clone_server)(struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *, rpc_authflavor_t);
};
/*
* 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 const struct rpc_version nfs_version2;
extern const struct rpc_version nfs_version3;
extern const struct rpc_version nfs_version4;
extern const struct rpc_version nfsacl_version3;
extern const struct rpc_program nfsacl_program;
#endif