1 /* $NetBSD: perfuse_priv.h,v 1.18 2011/05/30 14:50:08 manu Exp $ */ 2 3 /*- 4 * Copyright (c) 2010-2011 Emmanuel Dreyfus. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 16 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 19 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef _PERFUSE_PRIV_H_ 29 #define _PERFUSE_PRIV_H_ 30 31 #include <syslog.h> 32 #include <paths.h> 33 #include <err.h> 34 #include <sysexits.h> 35 #include <puffs.h> 36 37 #include "perfuse_if.h" 38 #include "fuse.h" 39 40 struct perfuse_state { 41 void *ps_private; /* Private field for libperfuse user */ 42 struct puffs_usermount *ps_pu; 43 struct puffs_node *ps_root; 44 uid_t ps_owner_uid; 45 int ps_flags; 46 #define PS_NO_ACCESS 0x0001 /* access is unimplemented; */ 47 #define PS_NO_CREAT 0x0004 /* create is unimplemented */ 48 #define PS_INLOOP 0x0008 /* puffs mainloop started */ 49 uint64_t ps_fsid; 50 uint32_t ps_max_readahead; 51 uint32_t ps_max_write; 52 uint64_t ps_syncreads; 53 uint64_t ps_syncwrites; 54 uint64_t ps_asyncreads; 55 uint64_t ps_asyncwrites; 56 char *ps_source; 57 char *ps_target; 58 char *ps_filesystemtype; 59 int ps_mountflags; 60 uint64_t ps_unique; 61 perfuse_new_msg_fn ps_new_msg; 62 perfuse_xchg_msg_fn ps_xchg_msg; 63 perfuse_destroy_msg_fn ps_destroy_msg; 64 perfuse_get_inhdr_fn ps_get_inhdr; 65 perfuse_get_inpayload_fn ps_get_inpayload; 66 perfuse_get_outhdr_fn ps_get_outhdr; 67 perfuse_get_outpayload_fn ps_get_outpayload; 68 perfuse_umount_fn ps_umount; 69 }; 70 71 72 enum perfuse_qtype { 73 PCQ_READDIR, 74 PCQ_READ, 75 PCQ_WRITE, 76 PCQ_AFTERWRITE, 77 PCQ_OPEN, 78 PCQ_AFTERXCHG 79 }; 80 81 #ifdef PERFUSE_DEBUG 82 extern const char *perfuse_qtypestr[]; 83 #endif 84 85 struct perfuse_cc_queue { 86 enum perfuse_qtype pcq_type; 87 struct puffs_cc *pcq_cc; 88 TAILQ_ENTRY(perfuse_cc_queue) pcq_next; 89 }; 90 91 struct perfuse_node_data { 92 uint64_t pnd_rfh; 93 uint64_t pnd_wfh; 94 uint64_t pnd_ino; /* inode */ 95 uint64_t pnd_nlookup; /* vnode refcount */ 96 uint64_t pnd_lock_owner; 97 struct dirent *pnd_dirent; /* native buffer for readdir */ 98 off_t pnd_dirent_len; 99 struct fuse_dirent *pnd_all_fd; /* FUSE buffer for readdir */ 100 size_t pnd_all_fd_len; 101 TAILQ_HEAD(,perfuse_cc_queue) pnd_pcq; /* queued requests */ 102 int pnd_flags; 103 #define PND_RECLAIMED 0x001 /* reclaim pending */ 104 #define PND_INREADDIR 0x002 /* readdir in progress */ 105 #define PND_DIRTY 0x004 /* There is some data to sync */ 106 #define PND_RFH 0x008 /* Read FH allocated */ 107 #define PND_WFH 0x010 /* Write FH allocated */ 108 #define PND_REMOVED 0x020 /* Node was removed */ 109 #define PND_INWRITE 0x040 /* write in progress */ 110 #define PND_INOPEN 0x100 /* open in progress */ 111 #define PND_INXCHG 0x400 /* FUSE exchange in progress */ 112 113 #define PND_OPEN (PND_RFH|PND_WFH) /* File is open */ 114 #define PND_BUSY (PND_INREADDIR|PND_INWRITE|PND_INOPEN) 115 puffs_cookie_t pnd_parent; 116 int pnd_childcount; 117 TAILQ_ENTRY(perfuse_node_data) pnd_next; 118 puffs_cookie_t pnd_pn; 119 char pnd_name[MAXPATHLEN]; /* node name */ 120 TAILQ_HEAD(,perfuse_node_data) pnd_children; 121 }; 122 123 #define PERFUSE_NODE_DATA(opc) \ 124 ((struct perfuse_node_data *)puffs_pn_getpriv((struct puffs_node *)opc)) 125 126 127 #define UNSPEC_REPLY_LEN PERFUSE_UNSPEC_REPLY_LEN /* shorter! */ 128 #define NO_PAYLOAD_REPLY_LEN 0 129 130 #define GET_INHDR(ps, pm) ps->ps_get_inhdr(pm) 131 #define GET_INPAYLOAD(ps, pm, type) \ 132 (struct type *)(void *)ps->ps_get_inpayload(pm) 133 #define _GET_INPAYLOAD(ps, pm, type) (type)ps->ps_get_inpayload(pm) 134 #define GET_OUTHDR(ps, pm) ps->ps_get_outhdr(pm) 135 #define GET_OUTPAYLOAD(ps, pm, type) \ 136 (struct type *)(void *)ps->ps_get_outpayload(pm) 137 #define _GET_OUTPAYLOAD(ps, pm, type) (type)ps->ps_get_outpayload(pm) 138 139 __BEGIN_DECLS 140 141 struct puffs_node *perfuse_new_pn(struct puffs_usermount *, const char *, 142 struct puffs_node *); 143 void perfuse_destroy_pn(struct puffs_node *); 144 void perfuse_new_fh(puffs_cookie_t, uint64_t, int); 145 void perfuse_destroy_fh(puffs_cookie_t, uint64_t); 146 uint64_t perfuse_get_fh(puffs_cookie_t, int); 147 uint64_t perfuse_next_unique(struct puffs_usermount *); 148 char *perfuse_node_path(puffs_cookie_t); 149 int perfuse_node_close_common(struct puffs_usermount *, puffs_cookie_t, int); 150 151 char *perfuse_fs_mount(int, ssize_t); 152 153 154 /* 155 * opc.c - filesystem operations 156 */ 157 int perfuse_fs_unmount(struct puffs_usermount *, int); 158 int perfuse_fs_statvfs(struct puffs_usermount *, struct statvfs *); 159 int perfuse_fs_sync(struct puffs_usermount *, int, 160 const struct puffs_cred *); 161 int perfuse_fs_fhtonode(struct puffs_usermount *, void *, size_t, 162 struct puffs_newinfo *); 163 int perfuse_fs_nodetofh(struct puffs_usermount *, puffs_cookie_t, 164 void *, size_t *); 165 void perfuse_fs_suspend(struct puffs_usermount *, int); 166 int perfuse_node_lookup(struct puffs_usermount *, 167 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *); 168 int perfuse_node_create(struct puffs_usermount *, 169 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 170 const struct vattr *); 171 int perfuse_node_mknod(struct puffs_usermount *, 172 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 173 const struct vattr *); 174 int perfuse_node_open(struct puffs_usermount *, 175 puffs_cookie_t, int, const struct puffs_cred *); 176 int perfuse_node_close(struct puffs_usermount *, 177 puffs_cookie_t, int, const struct puffs_cred *); 178 int perfuse_node_access(struct puffs_usermount *, 179 puffs_cookie_t, int, const struct puffs_cred *); 180 int perfuse_node_getattr(struct puffs_usermount *, 181 puffs_cookie_t, struct vattr *, const struct puffs_cred *); 182 int perfuse_node_setattr(struct puffs_usermount *, 183 puffs_cookie_t, const struct vattr *, const struct puffs_cred *); 184 int perfuse_node_poll(struct puffs_usermount *, puffs_cookie_t, int *); 185 int perfuse_node_mmap(struct puffs_usermount *, 186 puffs_cookie_t, vm_prot_t, const struct puffs_cred *); 187 int perfuse_node_fsync(struct puffs_usermount *, 188 puffs_cookie_t, const struct puffs_cred *, int, off_t, off_t); 189 int perfuse_node_seek(struct puffs_usermount *, 190 puffs_cookie_t, off_t, off_t, const struct puffs_cred *); 191 int perfuse_node_remove(struct puffs_usermount *, 192 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 193 int perfuse_node_link(struct puffs_usermount *, 194 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 195 int perfuse_node_rename(struct puffs_usermount *, 196 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *, 197 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 198 int perfuse_node_mkdir(struct puffs_usermount *, 199 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 200 const struct vattr *); 201 int perfuse_node_rmdir(struct puffs_usermount *, 202 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 203 int perfuse_node_symlink(struct puffs_usermount *, 204 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 205 const struct vattr *, const char *); 206 int perfuse_node_readdir(struct puffs_usermount *, 207 puffs_cookie_t, struct dirent *, off_t *, size_t *, 208 const struct puffs_cred *, int *, off_t *, size_t *); 209 int perfuse_node_readlink(struct puffs_usermount *, 210 puffs_cookie_t, const struct puffs_cred *, char *, size_t *); 211 int perfuse_node_reclaim(struct puffs_usermount *, puffs_cookie_t); 212 int perfuse_node_inactive(struct puffs_usermount *, puffs_cookie_t); 213 int perfuse_node_print(struct puffs_usermount *, puffs_cookie_t); 214 int perfuse_node_pathconf(struct puffs_usermount *, 215 puffs_cookie_t, int, int *); 216 int perfuse_node_advlock(struct puffs_usermount *, 217 puffs_cookie_t, void *, int, struct flock *, int); 218 int perfuse_node_read(struct puffs_usermount *, puffs_cookie_t, 219 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 220 int perfuse_node_write(struct puffs_usermount *, puffs_cookie_t, 221 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 222 void perfuse_cache_write(struct puffs_usermount *, 223 puffs_cookie_t, size_t, struct puffs_cacherun *); 224 225 __END_DECLS 226 227 #endif /* _PERFUSE_PRIV_H_ */ 228