/* $NetBSD: puffs.h,v 1.108.4.4 2009/10/27 20:37:38 bouyer Exp $ */ /* * Copyright (c) 2005, 2006, 2007 Antti Kantee. All Rights Reserved. * * Development of this software was supported by the * Google Summer of Code program and the Ulla Tuominen Foundation. * The Google SoC project was mentored by Bill Studenmund. * * 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 AUTHOR ``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 AUTHOR 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 _PUFFS_H_ #define _PUFFS_H_ #include #include #include #include #include #include #include #include "puffs_msgif.h" #include #include #include #include #include #include /* MINIX forwards */ struct flock; struct dirent; /* XXX: from sys/fstypes.h * Flags for various system call interfaces. * * waitfor flags to vfs_sync() and getvfsstat() */ #define MNT_WAIT 1 /* synchronously wait for I/O to complete */ #define MNT_NOWAIT 2 /* start all I/O, but do not wait for it */ #define MNT_LAZY 3 /* push data not written by filesystem syncer */ #define MNT_RDONLY 0x00000001 /* read only filesystem */ #define MNT_SYNCHRONOUS 0x00000002 /* file system written synchronously */ #define MNT_NOEXEC 0x00000004 /* can't exec from filesystem */ #define MNT_NOSUID 0x00000008 /* don't honor setuid bits on fs */ #define MNT_NODEV 0x00000010 /* don't interpret special files */ #define MNT_UNION 0x00000020 /* union with underlying filesystem */ #define MNT_ASYNC 0x00000040 /* file system written asynchronously */ #define MNT_NOCOREDUMP 0x00008000 /* don't write core dumps to this FS */ #define MNT_IGNORE 0x00100000 /* don't show entry in df */ #define MNT_LOG 0x02000000 /* Use logging */ #define MNT_NOATIME 0x04000000 /* Never update access times in fs */ #define MNT_SYMPERM 0x20000000 /* recognize symlink permission */ #define MNT_NODEVMTIME 0x40000000 /* Never update mod times for devs */ #define MNT_SOFTDEP 0x80000000 /* Use soft dependencies */ /* XXX from machine/param.h */ #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define DEV_BSIZE (1 << DEV_BSHIFT) /* FIXME: move? * some stuff from sys/dirent.h. */ #define DT_UNKNOWN 0 #define DT_FIFO 1 #define DT_CHR 2 #define DT_DIR 4 #define DT_BLK 6 #define DT_REG 8 #define DT_LNK 10 #define DT_SOCK 12 #define DT_WHT 14 /* * The _DIRENT_ALIGN macro returns the alignment of struct dirent. * struct direct and struct dirent12 used 4 byte alignment but * struct dirent uses 8. */ /* FIXME: in mfs code sizeof(long) and not d_ino */ #undef _DIRENT_ALIGN #define _DIRENT_ALIGN(dp) (sizeof((dp)->d_ino) - 1) /* * The _DIRENT_NAMEOFF macro returns the offset of the d_name field in * struct dirent */ #define _DIRENT_NAMEOFF(dp) \ ((char *)(void *)&(dp)->d_name - (char *)(void *)dp) /* * The _DIRENT_RECLEN macro gives the minimum record length which will hold * a name of size "namlen". This requires the amount of space in struct dirent * without the d_name field, plus enough space for the name with a terminating * null byte (namlen+1), rounded up to a the appropriate byte boundary. */ /* FIXME */ #undef _DIRENT_RECLEN #define _DIRENT_RECLEN(dp, namlen) \ ((_DIRENT_NAMEOFF(dp) + (namlen) + 1 + _DIRENT_ALIGN(dp)) & \ ~_DIRENT_ALIGN(dp)) /* * The _DIRENT_NEXT macro advances to the next dirent record. */ #define _DIRENT_NEXT(dp) ((void *)((char *)(void *)(dp) + (dp)->d_reclen)) /* forwards */ struct puffs_cc; struct puffs_getreq; struct puffs_cred; struct puffs_newinfo; /* paths */ struct puffs_pathobj { void *po_path; size_t po_len; uint32_t po_hash; }; /* for prefix rename */ struct puffs_pathinfo { struct puffs_pathobj *pi_old; struct puffs_pathobj *pi_new; }; /* describes one segment cached in the kernel */ struct puffs_kcache { off_t pkc_start; off_t pkc_end; LIST_ENTRY(puffs_kcache) pkc_entries; }; /* XXX: might disappear from here into a private header */ struct puffs_node { off_t pn_size; int pn_flags; struct vattr pn_va; void *pn_data; /* private data */ struct puffs_pathobj pn_po; /* PUFFS_FLAG_BUILDPATH */ struct puffs_usermount *pn_mnt; LIST_ENTRY(puffs_node) pn_entries; LIST_HEAD(,puffs_kcache)pn_cacheinfo; /* PUFFS_KFLAG_CACHE */ /* MINIX fields */ char pn_mountpoint; /* true if mounted on */ int pn_count; /* # times inode used */ }; #define PUFFS_NODE_REMOVED 0x01 /* not on entry list */ struct puffs_usermount; /* * megaXXX: these are values from inside _KERNEL * need to work on the translation for ALL the necessary values. */ #define PUFFS_VNOVAL (-1) #define PUFFS_IO_APPEND 0x020 #define PUFFS_IO_NDELAY 0x100 #define PUFFS_VEXEC 01 #define PUFFS_VWRITE 02 #define PUFFS_VREAD 04 #define PUFFS_FSYNC_DATAONLY 0x0002 #define PUFFS_FSYNC_CACHE 0x0100 /* * Magic constants */ #define PUFFS_CC_STACKSHIFT_DEFAULT 18 struct puffs_cn { struct puffs_kcn *pcn_pkcnp; /* kernel input */ struct puffs_cred *pcn_cred; /* cred used for lookup */ struct puffs_pathobj pcn_po_full; /* PUFFS_FLAG_BUILDPATH */ }; #define pcn_nameiop pcn_pkcnp->pkcn_nameiop #define pcn_flags pcn_pkcnp->pkcn_flags #define pcn_name pcn_pkcnp->pkcn_name #define pcn_namelen pcn_pkcnp->pkcn_namelen #define pcn_consume pcn_pkcnp->pkcn_consume /* * Puffs options to mount */ /* kernel */ #define PUFFSMOPT_NAMECACHE { "namecache", 1, PUFFS_KFLAG_NOCACHE_NAME, 1 } #define PUFFSMOPT_PAGECACHE { "pagecache", 1, PUFFS_KFLAG_NOCACHE_PAGE, 1 } #define PUFFSMOPT_CACHE { "cache", 1, PUFFS_KFLAG_NOCACHE, 1 } #define PUFFSMOPT_ALLOPS { "allops", 0, PUFFS_KFLAG_ALLOPS, 1 } /* libpuffs */ #define PUFFSMOPT_DUMP { "dump", 0, PUFFS_FLAG_OPDUMP, 1 } #define PUFFSMOPT_STD \ PUFFSMOPT_NAMECACHE, \ PUFFSMOPT_PAGECACHE, \ PUFFSMOPT_CACHE, \ PUFFSMOPT_ALLOPS, \ PUFFSMOPT_DUMP extern const struct mntopt puffsmopts[]; /* puffs.c */ /* callbacks for operations */ struct puffs_ops { int (*puffs_fs_unmount)(struct puffs_usermount *, int); int (*puffs_fs_statvfs)(struct puffs_usermount *, struct statvfs *); int (*puffs_fs_sync)(struct puffs_usermount *, int, const struct puffs_cred *); int (*puffs_fs_fhtonode)(struct puffs_usermount *, void *, size_t, struct puffs_newinfo *); int (*puffs_fs_nodetofh)(struct puffs_usermount *, puffs_cookie_t, void *, size_t *); void (*puffs_fs_suspend)(struct puffs_usermount *, int); int (*puffs_node_lookup)(struct puffs_usermount *, puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *); int (*puffs_node_create)(struct puffs_usermount *, puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, const struct vattr *); int (*puffs_node_mknod)(struct puffs_usermount *, puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, const struct vattr *); int (*puffs_node_open)(struct puffs_usermount *, puffs_cookie_t, int, const struct puffs_cred *); int (*puffs_node_close)(struct puffs_usermount *, puffs_cookie_t, int, const struct puffs_cred *); int (*puffs_node_access)(struct puffs_usermount *, puffs_cookie_t, int, const struct puffs_cred *); int (*puffs_node_getattr)(struct puffs_usermount *, puffs_cookie_t, struct vattr *, const struct puffs_cred *); int (*puffs_node_setattr)(struct puffs_usermount *, puffs_cookie_t, const struct vattr *, const struct puffs_cred *); int (*puffs_node_poll)(struct puffs_usermount *, puffs_cookie_t, int *); int (*puffs_node_mmap)(struct puffs_usermount *, puffs_cookie_t, vm_prot_t, const struct puffs_cred *); int (*puffs_node_fsync)(struct puffs_usermount *, puffs_cookie_t, const struct puffs_cred *, int, off_t, off_t); int (*puffs_node_seek)(struct puffs_usermount *, puffs_cookie_t, off_t, off_t, const struct puffs_cred *); int (*puffs_node_remove)(struct puffs_usermount *, puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); int (*puffs_node_link)(struct puffs_usermount *, puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); int (*puffs_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 (*puffs_node_mkdir)(struct puffs_usermount *, puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, const struct vattr *); int (*puffs_node_rmdir)(struct puffs_usermount *, puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); int (*puffs_node_symlink)(struct puffs_usermount *, puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, const struct vattr *, const char *); int (*puffs_node_readdir)(struct puffs_usermount *, puffs_cookie_t, struct dirent *, off_t *, size_t *, const struct puffs_cred *, int *, off_t *, size_t *); int (*puffs_node_readlink)(struct puffs_usermount *, puffs_cookie_t, const struct puffs_cred *, char *, size_t *); int (*puffs_node_reclaim)(struct puffs_usermount *, puffs_cookie_t); int (*puffs_node_inactive)(struct puffs_usermount *, puffs_cookie_t); int (*puffs_node_print)(struct puffs_usermount *, puffs_cookie_t); int (*puffs_node_pathconf)(struct puffs_usermount *, puffs_cookie_t, int, int *); int (*puffs_node_advlock)(struct puffs_usermount *, puffs_cookie_t, void *, int, struct flock *, int); int (*puffs_node_read)(struct puffs_usermount *, puffs_cookie_t, uint8_t *, off_t, size_t *, const struct puffs_cred *, int); int (*puffs_node_write)(struct puffs_usermount *, puffs_cookie_t, uint8_t *, off_t, size_t *, const struct puffs_cred *, int); int (*puffs_node_abortop)(struct puffs_usermount *, puffs_cookie_t, const struct puffs_cn *); #if 0 /* enable next time this structure is changed */ void *puffs_ops_spare[32]; #endif }; typedef int (*pu_pathbuild_fn)(struct puffs_usermount *, const struct puffs_pathobj *, const struct puffs_pathobj *, size_t, struct puffs_pathobj *); typedef int (*pu_pathtransform_fn)(struct puffs_usermount *, const struct puffs_pathobj *, const struct puffs_cn *, struct puffs_pathobj *); typedef int (*pu_pathcmp_fn)(struct puffs_usermount *, struct puffs_pathobj *, struct puffs_pathobj *, size_t, int); typedef void (*pu_pathfree_fn)(struct puffs_usermount *, struct puffs_pathobj *); typedef int (*pu_namemod_fn)(struct puffs_usermount *, struct puffs_pathobj *, struct puffs_cn *); typedef void (*pu_errnotify_fn)(struct puffs_usermount *, uint8_t, int, const char *, puffs_cookie_t); typedef void (*pu_prepost_fn)(struct puffs_usermount *); typedef struct puffs_node *(*pu_cmap_fn)(struct puffs_usermount *, puffs_cookie_t); enum { PUFFS_STATE_BEFOREMOUNT, PUFFS_STATE_RUNNING, PUFFS_STATE_UNMOUNTING, PUFFS_STATE_UNMOUNTED }; #define PUFFS_FLAG_BUILDPATH 0x80000000 /* node paths in pnode */ #define PUFFS_FLAG_OPDUMP 0x40000000 /* dump all operations */ #define PUFFS_FLAG_HASHPATH 0x20000000 /* speedup: hash paths */ #define PUFFS_FLAG_MASK 0xe0000000 #define PUFFS_FLAG_KERN(a) ((a) & PUFFS_KFLAG_MASK) #define PUFFS_FLAG_LIB(a) ((a) & PUFFS_FLAG_MASK) /* blocking mode argument */ #define PUFFSDEV_BLOCK 0 #define PUFFSDEV_NONBLOCK 1 #define PUFFS_STACKSIZE_DEFAULT (1<puffs_##fsornode##_##opname = fsname##_##fsornode##_##opname #define PUFFSOP_SETFSNOP(ops, opname) \ (ops)->puffs_fs_##opname = puffs_fsnop_##opname PUFFSOP_PROTOS(puffs_null) /* XXX */ #define PUFFS_DEVEL_LIBVERSION 34 #define puffs_init(a,b,c,d,e) \ _puffs_init(PUFFS_DEVEL_LIBVERSION,a,b,c,d,e) #define PNPATH(pnode) ((pnode)->pn_po.po_path) #define PNPLEN(pnode) ((pnode)->pn_po.po_len) #define PCNPATH(pcnode) ((pcnode)->pcn_po_full.po_path) #define PCNPLEN(pcnode) ((pcnode)->pcn_po_full.po_len) #define PCNISDOTDOT(pcnode) \ ((pcnode)->pcn_namelen == 2 && strcmp((pcnode)->pcn_name, "..") == 0) #define PUFFS_STORE_DCOOKIE(cp, ncp, off) \ if (cp) { \ *((cp)++) = off; \ (*(ncp))++; \ } /* mainloop */ typedef void (*puffs_ml_loop_fn)(struct puffs_usermount *); /* framebuf stuff */ struct puffs_framebuf; typedef int (*puffs_framev_readframe_fn)(struct puffs_usermount *, struct puffs_framebuf *, int, int *); typedef int (*puffs_framev_writeframe_fn)(struct puffs_usermount *, struct puffs_framebuf *, int, int *); typedef int (*puffs_framev_cmpframe_fn)(struct puffs_usermount *, struct puffs_framebuf *, struct puffs_framebuf *, int *); typedef void (*puffs_framev_fdnotify_fn)(struct puffs_usermount *, int, int); typedef void (*puffs_framev_gotframe_fn)(struct puffs_usermount *, struct puffs_framebuf *); typedef void (*puffs_framev_cb)(struct puffs_usermount *, struct puffs_framebuf *, void *, int); #define PUFFS_FBIO_READ 0x01 #define PUFFS_FBIO_WRITE 0x02 #define PUFFS_FBIO_ERROR 0x04 #define PUFFS_FBQUEUE_URGENT 0x01 __BEGIN_DECLS #define PUFFS_DEFER ((void *)-1) struct puffs_usermount *_puffs_init(int, struct puffs_ops *, const char *, const char *, void *, uint32_t); int puffs_mount(struct puffs_usermount *, const char *, int, void*); int puffs_exit(struct puffs_usermount *, int); void puffs_cancel(struct puffs_usermount *, int); int puffs_mainloop(struct puffs_usermount *); int puffs_getstate(struct puffs_usermount *); void puffs_setstacksize(struct puffs_usermount *, size_t); void puffs_ml_setloopfn(struct puffs_usermount *, puffs_ml_loop_fn); void puffs_ml_settimeout(struct puffs_usermount *, struct timespec *); void puffs_setroot(struct puffs_usermount *, struct puffs_node *); struct puffs_node *puffs_getroot(struct puffs_usermount *); void puffs_setrootinfo(struct puffs_usermount *, enum vtype, vsize_t, dev_t); void *puffs_getspecific(struct puffs_usermount *); void puffs_setspecific(struct puffs_usermount *, void *); void puffs_setmaxreqlen(struct puffs_usermount *, size_t); size_t puffs_getmaxreqlen(struct puffs_usermount *); void puffs_setfhsize(struct puffs_usermount *, size_t, int); void puffs_setmntinfo(struct puffs_usermount *, const char *, const char *); void puffs_setncookiehash(struct puffs_usermount *, int); struct puffs_pathobj *puffs_getrootpathobj(struct puffs_usermount *); struct puffs_node *puffs_pn_new(struct puffs_usermount *, void *); void puffs_pn_remove(struct puffs_node *); void puffs_pn_put(struct puffs_node *); struct vattr *puffs_pn_getvap(struct puffs_node *); void * puffs_pn_getpriv(struct puffs_node *); void puffs_pn_setpriv(struct puffs_node *, void *); struct puffs_pathobj *puffs_pn_getpo(struct puffs_node *); struct puffs_usermount *puffs_pn_getmnt(struct puffs_node *); void puffs_newinfo_setcookie(struct puffs_newinfo *, puffs_cookie_t); void puffs_newinfo_setvtype(struct puffs_newinfo *, enum vtype); void puffs_newinfo_setsize(struct puffs_newinfo *, voff_t); void puffs_newinfo_setrdev(struct puffs_newinfo *, dev_t); void *puffs_pn_getmntspecific(struct puffs_node *); typedef void * (*puffs_nodewalk_fn)(struct puffs_usermount *, struct puffs_node *, void *); void *puffs_pn_nodewalk(struct puffs_usermount *, puffs_nodewalk_fn, void *); void *puffs_pn_nodeprint(struct puffs_usermount *pu, struct puffs_node *pn, void *arg); void puffs_pn_nodeprintall(struct puffs_usermount *pu); void puffs_setvattr(struct vattr *, const struct vattr *); void puffs_vattr_null(struct vattr *); void puffs_null_setops(struct puffs_ops *); int puffs_dispatch_create(struct puffs_usermount *, struct puffs_framebuf *, struct puffs_cc **); int puffs_dispatch_exec(struct puffs_cc *, struct puffs_framebuf **); /* * generic/dummy routines applicable for some file systems */ int puffs_fsnop_unmount(struct puffs_usermount *, int); int puffs_fsnop_statvfs(struct puffs_usermount *, struct statvfs *); void puffs_zerostatvfs(struct statvfs *); int puffs_fsnop_sync(struct puffs_usermount *, int waitfor, const struct puffs_cred *); int puffs_genfs_node_getattr(struct puffs_usermount *, puffs_cookie_t, struct vattr *, const struct puffs_cred *); int puffs_genfs_node_reclaim(struct puffs_usermount *, puffs_cookie_t); /* * Subroutine stuff */ int puffs_gendotdent(struct dirent **, ino_t, int, size_t *); int puffs_nextdent(struct dirent **, const char *, ino_t, uint8_t, size_t *); int puffs_vtype2dt(enum vtype); enum vtype puffs_mode2vt(mode_t); void puffs_stat2vattr(struct vattr *va, const struct stat *); mode_t puffs_addvtype2mode(mode_t, enum vtype); /* * credentials & permissions */ /* Credential fetch */ int puffs_cred_getuid(const struct puffs_cred *, uid_t *); int puffs_cred_getgid(const struct puffs_cred *, gid_t *); int puffs_cred_getgroups(const struct puffs_cred *, gid_t *, short *); /* Credential check */ bool puffs_cred_isuid(const struct puffs_cred *, uid_t); bool puffs_cred_hasgroup(const struct puffs_cred *, gid_t); bool puffs_cred_isregular(const struct puffs_cred *); bool puffs_cred_iskernel(const struct puffs_cred *); bool puffs_cred_isfs(const struct puffs_cred *); bool puffs_cred_isjuggernaut(const struct puffs_cred *); /* misc */ int puffs_access(enum vtype, mode_t, uid_t, gid_t, mode_t, const struct puffs_cred *); int puffs_access_chown(uid_t, gid_t, uid_t, gid_t, const struct puffs_cred *); int puffs_access_chmod(uid_t, gid_t, enum vtype, mode_t, const struct puffs_cred *); int puffs_access_times(uid_t, gid_t, mode_t, int, const struct puffs_cred *); /* * Call Context interfaces relevant for user. */ void puffs_cc_yield(struct puffs_cc *); void puffs_cc_continue(struct puffs_cc *); void puffs_cc_schedule(struct puffs_cc *); int puffs_cc_getcaller(struct puffs_cc *,pid_t *,lwpid_t *); struct puffs_cc *puffs_cc_getcc(struct puffs_usermount *); /* * Flushing / invalidation routines */ int puffs_inval_namecache_dir(struct puffs_usermount *, puffs_cookie_t); int puffs_inval_namecache_all(struct puffs_usermount *); int puffs_inval_pagecache_node(struct puffs_usermount *, puffs_cookie_t); int puffs_inval_pagecache_node_range(struct puffs_usermount *, puffs_cookie_t, off_t, off_t); int puffs_flush_pagecache_node(struct puffs_usermount *, puffs_cookie_t); int puffs_flush_pagecache_node_range(struct puffs_usermount *, puffs_cookie_t, off_t, off_t); /* * Path constructicons */ int puffs_stdpath_buildpath(struct puffs_usermount *, const struct puffs_pathobj *, const struct puffs_pathobj *, size_t, struct puffs_pathobj *); int puffs_stdpath_cmppath(struct puffs_usermount *, struct puffs_pathobj *, struct puffs_pathobj *, size_t, int); void puffs_stdpath_freepath(struct puffs_usermount *,struct puffs_pathobj *); void *puffs_path_walkcmp(struct puffs_usermount *, struct puffs_node *, void *); void *puffs_path_prefixadj(struct puffs_usermount *, struct puffs_node *, void *); int puffs_path_pcnbuild(struct puffs_usermount *, struct puffs_cn *, void *); void puffs_path_buildhash(struct puffs_usermount *, struct puffs_pathobj *); void puffs_set_pathbuild(struct puffs_usermount *, pu_pathbuild_fn); void puffs_set_pathtransform(struct puffs_usermount *, pu_pathtransform_fn); void puffs_set_pathcmp(struct puffs_usermount *, pu_pathcmp_fn); void puffs_set_pathfree(struct puffs_usermount *, pu_pathfree_fn); void puffs_set_namemod(struct puffs_usermount *, pu_namemod_fn); void puffs_set_errnotify(struct puffs_usermount *, pu_errnotify_fn); void puffs_set_prepost(struct puffs_usermount *, pu_prepost_fn, pu_prepost_fn); void puffs_set_cmap(struct puffs_usermount *, pu_cmap_fn); /* * Suspension */ int puffs_fs_suspend(struct puffs_usermount *); /* * Frame buffering */ void puffs_framev_init(struct puffs_usermount *, puffs_framev_readframe_fn, puffs_framev_writeframe_fn, puffs_framev_cmpframe_fn, puffs_framev_gotframe_fn, puffs_framev_fdnotify_fn); struct puffs_framebuf *puffs_framebuf_make(void); void puffs_framebuf_destroy(struct puffs_framebuf *); int puffs_framebuf_dup(struct puffs_framebuf *, struct puffs_framebuf **); void puffs_framebuf_recycle(struct puffs_framebuf *); int puffs_framebuf_reserve_space(struct puffs_framebuf *, size_t); int puffs_framebuf_putdata(struct puffs_framebuf *, const void *, size_t); int puffs_framebuf_putdata_atoff(struct puffs_framebuf *, size_t, const void *, size_t); int puffs_framebuf_getdata(struct puffs_framebuf *, void *, size_t); int puffs_framebuf_getdata_atoff(struct puffs_framebuf *, size_t, void *, size_t); size_t puffs_framebuf_telloff(struct puffs_framebuf *); size_t puffs_framebuf_tellsize(struct puffs_framebuf *); size_t puffs_framebuf_remaining(struct puffs_framebuf *); int puffs_framebuf_seekset(struct puffs_framebuf *, size_t); int puffs_framebuf_getwindow(struct puffs_framebuf *, size_t, void **, size_t *); int puffs_framev_enqueue_cc(struct puffs_cc *, int, struct puffs_framebuf *, int); int puffs_framev_enqueue_cb(struct puffs_usermount *, int, struct puffs_framebuf *, puffs_framev_cb, void *, int); int puffs_framev_enqueue_justsend(struct puffs_usermount *, int, struct puffs_framebuf *, int, int); int puffs_framev_enqueue_directreceive(struct puffs_cc *, int, struct puffs_framebuf *, int); int puffs_framev_enqueue_directsend(struct puffs_cc *, int, struct puffs_framebuf *, int); int puffs_framev_enqueue_waitevent(struct puffs_cc *, int, int *); int puffs_framev_framebuf_ccpromote(struct puffs_framebuf *, struct puffs_cc *); int puffs_framev_addfd(struct puffs_usermount *, int, int); int puffs_framev_enablefd(struct puffs_usermount *, int, int); int puffs_framev_disablefd(struct puffs_usermount *, int, int); int puffs_framev_removefd(struct puffs_usermount *, int, int); void puffs_framev_removeonclose(struct puffs_usermount *, int, int); void puffs_framev_unmountonclose(struct puffs_usermount *, int, int); __END_DECLS #endif /* _PUFFS_H_ */