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NetBSD/lib/libperfuse/perfuse_priv.h
manu 6645d5252e FUSE fallocate support 
There seems to be no fdiscard FUSE operation at the moment, hence that one
is left unused.
2014-10-31 15:12:15 +00:00

296 lines
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/* $NetBSD: perfuse_priv.h,v 1.36 2014/10/31 15:12:15 manu Exp $ */
/*-
* Copyright (c) 2010-2011 Emmanuel Dreyfus. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _PERFUSE_PRIV_H_
#define _PERFUSE_PRIV_H_
#include <unistd.h>
#include <syslog.h>
#include <paths.h>
#include <err.h>
#include <sysexits.h>
#include <signal.h>
#include <puffs.h>
#include "perfuse_if.h"
#include "fuse.h"
/* From src/sys/fs/puffs/puffs_vfsops.c */
#ifndef PUFFS_PNODEBUCKETS
#define PUFFS_PNODEBUCKETS 256
#endif /* PUFFS_PNODEBUCKETS */
#define PERFUSE_TRACECOUNT_MAX 4096
#define PERFUSE_TRACEPATH_MAX 256
struct perfuse_trace {
int pt_opcode;
char pt_path[PERFUSE_TRACEPATH_MAX];
char pt_extra[BUFSIZ];
int pt_error;
enum { inxchg, done } pt_status;
struct timespec pt_start;
struct timespec pt_end;
TAILQ_ENTRY(perfuse_trace) pt_list;
};
LIST_HEAD(perfuse_node_hashlist, perfuse_node_data);
struct perfuse_state {
void *ps_private; /* Private field for libperfuse user */
struct puffs_usermount *ps_pu;
struct puffs_node *ps_root;
uid_t ps_owner_uid;
int ps_flags;
#define PS_NO_ACCESS 0x0001 /* access is unimplemented; */
#define PS_NO_CREAT 0x0004 /* create is unimplemented */
#define PS_INLOOP 0x0008 /* puffs mainloop started */
#define PS_NO_FALLOCATE 0x0010 /* fallocate is unimplemented */
uint64_t ps_fsid;
uint32_t ps_max_readahead;
uint32_t ps_max_write;
uint64_t ps_syncreads;
uint64_t ps_syncwrites;
uint64_t ps_asyncreads;
uint64_t ps_asyncwrites;
char *ps_source;
char *ps_target;
char *ps_filesystemtype;
int ps_mountflags;
uint64_t ps_unique;
perfuse_new_msg_fn ps_new_msg;
perfuse_xchg_msg_fn ps_xchg_msg;
perfuse_destroy_msg_fn ps_destroy_msg;
perfuse_get_inhdr_fn ps_get_inhdr;
perfuse_get_inpayload_fn ps_get_inpayload;
perfuse_get_outhdr_fn ps_get_outhdr;
perfuse_get_outpayload_fn ps_get_outpayload;
perfuse_umount_fn ps_umount;
TAILQ_HEAD(,perfuse_trace) ps_trace;
uint64_t ps_tracecount;
struct perfuse_node_hashlist *ps_nidhash;
int ps_nnidhash;
int ps_nodecount;
int ps_nodeleakcount;
int ps_xchgcount;
};
enum perfuse_qtype {
PCQ_READDIR,
PCQ_READ,
PCQ_WRITE,
PCQ_AFTERWRITE,
PCQ_OPEN,
PCQ_AFTERXCHG,
PCQ_RESIZE,
PCQ_REF
};
#ifdef PERFUSE_DEBUG
extern const char * const perfuse_qtypestr[];
#endif
struct perfuse_cc_queue {
enum perfuse_qtype pcq_type;
struct puffs_cc *pcq_cc;
TAILQ_ENTRY(perfuse_cc_queue) pcq_next;
const char *pcq_func;
int pcq_line;
};
struct perfuse_node_data {
uint64_t pnd_rfh;
uint64_t pnd_wfh;
uint64_t pnd_nodeid; /* nodeid, this is not inode */
uint64_t pnd_parent_nodeid; /* parent's nodeid */
uint32_t pnd_hashidx; /* node hash index */
uint64_t pnd_fuse_nlookup; /* vnode refcount */
int pnd_puffs_nlookup; /* vnode refcount */
uint64_t pnd_lock_owner;
struct dirent *pnd_dirent; /* native buffer for readdir */
off_t pnd_dirent_len;
struct fuse_dirent *pnd_all_fd; /* FUSE buffer for readdir */
size_t pnd_all_fd_len;
uint64_t pnd_fd_cookie; /* opaque readdir ref from fs */
TAILQ_HEAD(,perfuse_cc_queue) pnd_pcq; /* queued requests */
int pnd_flags;
#define PND_RECLAIMED 0x001 /* reclaim pending */
#define PND_INREADDIR 0x002 /* readdir in progress */
#define PND_DIRTY 0x004 /* There is some data to sync */
#define PND_RFH 0x008 /* Read FH allocated */
#define PND_WFH 0x010 /* Write FH allocated */
#define PND_REMOVED 0x020 /* Node was removed */
#define PND_INWRITE 0x040 /* write in progress */
#define PND_INOPEN 0x100 /* open in progress */
#define PND_NODELEAK 0x200 /* node reclaim ignored */
#define PND_INVALID 0x400 /* node freed, usage is a bug */
#define PND_INRESIZE 0x800 /* resize in progress */
#define PND_OPEN (PND_RFH|PND_WFH) /* File is open */
#define PND_BUSY (PND_INREADDIR|PND_INWRITE|PND_INOPEN)
LIST_ENTRY(perfuse_node_data) pnd_nident;
puffs_cookie_t pnd_pn;
char pnd_name[MAXPATHLEN]; /* node name */
struct timespec pnd_cn_expire;
int pnd_inxchg;
int pnd_ref;
};
#define PERFUSE_NODE_DATA(opc) \
((struct perfuse_node_data *)puffs_pn_getpriv((struct puffs_node *)opc))
#define UNSPEC_REPLY_LEN PERFUSE_UNSPEC_REPLY_LEN /* shorter! */
#define NO_PAYLOAD_REPLY_LEN 0
#define GET_INHDR(ps, pm) ps->ps_get_inhdr(pm)
#define GET_INPAYLOAD(ps, pm, type) \
(struct type *)(void *)ps->ps_get_inpayload(pm)
#define _GET_INPAYLOAD(ps, pm, type) (type)ps->ps_get_inpayload(pm)
#define GET_OUTHDR(ps, pm) ps->ps_get_outhdr(pm)
#define GET_OUTPAYLOAD(ps, pm, type) \
(struct type *)(void *)ps->ps_get_outpayload(pm)
#define _GET_OUTPAYLOAD(ps, pm, type) (type)ps->ps_get_outpayload(pm)
__BEGIN_DECLS
struct puffs_node *perfuse_new_pn(struct puffs_usermount *, const char *,
struct puffs_node *);
void perfuse_destroy_pn(struct puffs_usermount *, struct puffs_node *);
void perfuse_new_fh(puffs_cookie_t, uint64_t, int);
void perfuse_destroy_fh(puffs_cookie_t, uint64_t);
uint64_t perfuse_get_fh(puffs_cookie_t, int);
uint64_t perfuse_next_unique(struct puffs_usermount *);
char *perfuse_node_path(struct perfuse_state *, puffs_cookie_t);
int perfuse_node_close_common(struct puffs_usermount *, puffs_cookie_t, int);
int perfuse_ns_match(const int, const char *);
const char *perfuse_native_ns(const int, const char *, char *);
char *perfuse_fs_mount(int, ssize_t);
/*
* ops.c - filesystem operations
*/
int perfuse_fs_unmount(struct puffs_usermount *, int);
int perfuse_fs_statvfs(struct puffs_usermount *, struct statvfs *);
int perfuse_fs_sync(struct puffs_usermount *, int,
const struct puffs_cred *);
int perfuse_fs_fhtonode(struct puffs_usermount *, void *, size_t,
struct puffs_newinfo *);
int perfuse_fs_nodetofh(struct puffs_usermount *, puffs_cookie_t,
void *, size_t *);
void perfuse_fs_suspend(struct puffs_usermount *, int);
int perfuse_node_lookup(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *);
int perfuse_node_create(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int perfuse_node_mknod(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int perfuse_node_open(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int perfuse_node_close(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int perfuse_node_access(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *);
int perfuse_node_getattr(struct puffs_usermount *,
puffs_cookie_t, struct vattr *, const struct puffs_cred *);
int perfuse_node_setattr(struct puffs_usermount *,
puffs_cookie_t, const struct vattr *, const struct puffs_cred *);
int perfuse_node_poll(struct puffs_usermount *, puffs_cookie_t, int *);
int perfuse_node_fsync(struct puffs_usermount *,
puffs_cookie_t, const struct puffs_cred *, int, off_t, off_t);
int perfuse_node_remove(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_link(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_rename(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_mkdir(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *);
int perfuse_node_rmdir(struct puffs_usermount *,
puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *);
int perfuse_node_symlink(struct puffs_usermount *,
puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *,
const struct vattr *, const char *);
int perfuse_node_readdir(struct puffs_usermount *,
puffs_cookie_t, struct dirent *, off_t *, size_t *,
const struct puffs_cred *, int *, off_t *, size_t *);
int perfuse_node_readlink(struct puffs_usermount *,
puffs_cookie_t, const struct puffs_cred *, char *, size_t *);
int perfuse_node_reclaim(struct puffs_usermount *, puffs_cookie_t);
int perfuse_node_inactive(struct puffs_usermount *, puffs_cookie_t);
int perfuse_node_print(struct puffs_usermount *, puffs_cookie_t);
int perfuse_node_pathconf(struct puffs_usermount *,
puffs_cookie_t, int, register_t *);
int perfuse_node_advlock(struct puffs_usermount *,
puffs_cookie_t, void *, int, struct flock *, int);
int perfuse_node_read(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
int perfuse_node_write(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int);
int perfuse_node_write2(struct puffs_usermount *, puffs_cookie_t,
uint8_t *, off_t, size_t *, const struct puffs_cred *, int, int);
int perfuse_node_open2(struct puffs_usermount *,
puffs_cookie_t, int, const struct puffs_cred *, int *);
void perfuse_cache_write(struct puffs_usermount *,
puffs_cookie_t, size_t, struct puffs_cacherun *);
int perfuse_node_getextattr(struct puffs_usermount *, puffs_cookie_t,
int, const char *, size_t *, uint8_t *, size_t *,
const struct puffs_cred *);
int perfuse_node_setextattr(struct puffs_usermount *, puffs_cookie_t,
int, const char *, uint8_t *, size_t *, const struct puffs_cred *);
int perfuse_node_listextattr(struct puffs_usermount *, puffs_cookie_t,
int, size_t *, uint8_t *, size_t *, int, const struct puffs_cred *);
int perfuse_node_deleteextattr(struct puffs_usermount *, puffs_cookie_t,
int, const char *, const struct puffs_cred *);
int perfuse_node_getattr_ttl(struct puffs_usermount *,
puffs_cookie_t, struct vattr *, const struct puffs_cred *,
struct timespec *);
int perfuse_node_setattr_ttl(struct puffs_usermount *,
puffs_cookie_t, struct vattr *, const struct puffs_cred *,
struct timespec *, int);
int perfuse_node_fallocate(struct puffs_usermount *,
puffs_cookie_t, off_t, off_t);
struct perfuse_trace *perfuse_trace_begin(struct perfuse_state *,
puffs_cookie_t, perfuse_msg_t *);
void perfuse_trace_end(struct perfuse_state *, struct perfuse_trace *, int);
char *perfuse_opdump_in(struct perfuse_state *, perfuse_msg_t *);
struct perfuse_node_data *perfuse_node_bynodeid(struct perfuse_state *,
uint64_t);
void perfuse_node_cache(struct perfuse_state *, puffs_cookie_t);
void perfuse_cache_flush(puffs_cookie_t);
__END_DECLS
#endif /* _PERFUSE_PRIV_H_ */
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