1 /* $NetBSD: perfuse_priv.h,v 1.38 2019/09/23 12:00:57 christos 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 <unistd.h> 32 #include <syslog.h> 33 #include <paths.h> 34 #include <err.h> 35 #include <sysexits.h> 36 #include <signal.h> 37 #include <puffs.h> 38 39 #include "perfuse_if.h" 40 #include "fuse.h" 41 42 /* From src/sys/fs/puffs/puffs_vfsops.c */ 43 #ifndef PUFFS_PNODEBUCKETS 44 #define PUFFS_PNODEBUCKETS 256 45 #endif /* PUFFS_PNODEBUCKETS */ 46 47 #define PERFUSE_TRACECOUNT_MAX 4096 48 #define PERFUSE_TRACEPATH_MAX 256 49 struct perfuse_trace { 50 int pt_opcode; 51 char pt_path[PERFUSE_TRACEPATH_MAX]; 52 char pt_extra[BUFSIZ]; 53 int pt_error; 54 enum { inxchg, done } pt_status; 55 struct timespec pt_start; 56 struct timespec pt_end; 57 TAILQ_ENTRY(perfuse_trace) pt_list; 58 }; 59 60 LIST_HEAD(perfuse_node_hashlist, perfuse_node_data); 61 struct perfuse_state { 62 void *ps_private; /* Private field for libperfuse user */ 63 struct puffs_usermount *ps_pu; 64 struct puffs_node *ps_root; 65 uid_t ps_owner_uid; 66 int ps_flags; 67 #define PS_NO_ACCESS 0x0001 /* access is unimplemented; */ 68 #define PS_NO_CREAT 0x0004 /* create is unimplemented */ 69 #define PS_INLOOP 0x0008 /* puffs mainloop started */ 70 #define PS_NO_FALLOCATE 0x0010 /* fallocate is unimplemented */ 71 uint64_t ps_fsid; 72 uint32_t ps_max_readahead; 73 uint32_t ps_max_write; 74 uint64_t ps_syncreads; 75 uint64_t ps_syncwrites; 76 uint64_t ps_asyncreads; 77 uint64_t ps_asyncwrites; 78 char *ps_source; 79 char *ps_target; 80 char *ps_filesystemtype; 81 int ps_mountflags; 82 uint64_t ps_unique; 83 perfuse_new_msg_fn ps_new_msg; 84 perfuse_xchg_msg_fn ps_xchg_msg; 85 perfuse_destroy_msg_fn ps_destroy_msg; 86 perfuse_get_inhdr_fn ps_get_inhdr; 87 perfuse_get_inpayload_fn ps_get_inpayload; 88 perfuse_get_outhdr_fn ps_get_outhdr; 89 perfuse_get_outpayload_fn ps_get_outpayload; 90 perfuse_umount_fn ps_umount; 91 TAILQ_HEAD(,perfuse_trace) ps_trace; 92 uint64_t ps_tracecount; 93 struct perfuse_node_hashlist *ps_nidhash; 94 int ps_nnidhash; 95 int ps_nodecount; 96 int ps_xchgcount; 97 }; 98 99 100 enum perfuse_qtype { 101 PCQ_READDIR, 102 PCQ_READ, 103 PCQ_WRITE, 104 PCQ_AFTERWRITE, 105 PCQ_OPEN, 106 PCQ_AFTERXCHG, 107 PCQ_RESIZE, 108 PCQ_REF 109 }; 110 111 #ifdef PERFUSE_DEBUG 112 extern const char * const perfuse_qtypestr[]; 113 #endif 114 115 struct perfuse_cc_queue { 116 enum perfuse_qtype pcq_type; 117 struct puffs_cc *pcq_cc; 118 TAILQ_ENTRY(perfuse_cc_queue) pcq_next; 119 const char *pcq_func; 120 int pcq_line; 121 }; 122 123 struct perfuse_node_data { 124 uint64_t pnd_rfh; 125 uint64_t pnd_wfh; 126 uint64_t pnd_nodeid; /* nodeid, this is not inode */ 127 uint64_t pnd_parent_nodeid; /* parent's nodeid */ 128 uint32_t pnd_hashidx; /* node hash index */ 129 uint64_t pnd_fuse_nlookup; /* vnode refcount */ 130 int pnd_puffs_nlookup; /* vnode refcount */ 131 uint64_t pnd_lock_owner; 132 struct dirent *pnd_dirent; /* native buffer for readdir */ 133 off_t pnd_dirent_len; 134 struct fuse_dirent *pnd_all_fd; /* FUSE buffer for readdir */ 135 size_t pnd_all_fd_len; 136 uint64_t pnd_fd_cookie; /* opaque readdir ref from fs */ 137 TAILQ_HEAD(,perfuse_cc_queue) pnd_pcq; /* queued requests */ 138 int pnd_flags; 139 #define PND_RECLAIMED 0x001 /* reclaim pending */ 140 #define PND_INREADDIR 0x002 /* readdir in progress */ 141 #define PND_DIRTY 0x004 /* There is some data to sync */ 142 #define PND_RFH 0x008 /* Read FH allocated */ 143 #define PND_WFH 0x010 /* Write FH allocated */ 144 #define PND_REMOVED 0x020 /* Node was removed */ 145 #define PND_INWRITE 0x040 /* write in progress */ 146 #define PND_INOPEN 0x100 /* open in progress */ 147 #define PND_INVALID 0x400 /* node freed, usage is a bug */ 148 #define PND_INRESIZE 0x800 /* resize in progress */ 149 150 #define PND_OPEN (PND_RFH|PND_WFH) /* File is open */ 151 #define PND_BUSY (PND_INREADDIR|PND_INWRITE|PND_INOPEN) 152 153 LIST_ENTRY(perfuse_node_data) pnd_nident; 154 puffs_cookie_t pnd_pn; 155 char pnd_name[MAXPATHLEN]; /* node name */ 156 struct timespec pnd_cn_expire; 157 int pnd_inxchg; 158 int pnd_ref; 159 }; 160 161 #define PERFUSE_NODE_DATA(opc) \ 162 ((struct perfuse_node_data *)puffs_pn_getpriv((struct puffs_node *)opc)) 163 164 165 #define UNSPEC_REPLY_LEN PERFUSE_UNSPEC_REPLY_LEN /* shorter! */ 166 #define NO_PAYLOAD_REPLY_LEN 0 167 168 #define GET_INHDR(ps, pm) ps->ps_get_inhdr(pm) 169 #define GET_INPAYLOAD(ps, pm, type) \ 170 (struct type *)(void *)ps->ps_get_inpayload(pm) 171 #define _GET_INPAYLOAD(ps, pm, type) (type)ps->ps_get_inpayload(pm) 172 #define GET_OUTHDR(ps, pm) ps->ps_get_outhdr(pm) 173 #define GET_OUTPAYLOAD(ps, pm, type) \ 174 (struct type *)(void *)ps->ps_get_outpayload(pm) 175 #define _GET_OUTPAYLOAD(ps, pm, type) (type)ps->ps_get_outpayload(pm) 176 177 __BEGIN_DECLS 178 179 struct puffs_node *perfuse_new_pn(struct puffs_usermount *, const char *, 180 struct puffs_node *); 181 void perfuse_destroy_pn(struct puffs_usermount *, struct puffs_node *); 182 void perfuse_new_fh(puffs_cookie_t, uint64_t, int); 183 void perfuse_destroy_fh(puffs_cookie_t, uint64_t); 184 uint64_t perfuse_get_fh(puffs_cookie_t, int); 185 uint64_t perfuse_next_unique(struct puffs_usermount *); 186 char *perfuse_node_path(struct perfuse_state *, puffs_cookie_t); 187 int perfuse_node_close_common(struct puffs_usermount *, puffs_cookie_t, int); 188 int perfuse_ns_match(const int, const char *); 189 const char *perfuse_native_ns(const int, const char *, char *); 190 191 char *perfuse_fs_mount(int, ssize_t); 192 193 194 /* 195 * ops.c - filesystem operations 196 */ 197 int perfuse_fs_unmount(struct puffs_usermount *, int); 198 int perfuse_fs_statvfs(struct puffs_usermount *, struct puffs_statvfs *); 199 int perfuse_fs_sync(struct puffs_usermount *, int, 200 const struct puffs_cred *); 201 int perfuse_fs_fhtonode(struct puffs_usermount *, void *, size_t, 202 struct puffs_newinfo *); 203 int perfuse_fs_nodetofh(struct puffs_usermount *, puffs_cookie_t, 204 void *, size_t *); 205 void perfuse_fs_suspend(struct puffs_usermount *, int); 206 int perfuse_node_lookup(struct puffs_usermount *, 207 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *); 208 int perfuse_node_create(struct puffs_usermount *, 209 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 210 const struct vattr *); 211 int perfuse_node_mknod(struct puffs_usermount *, 212 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 213 const struct vattr *); 214 int perfuse_node_open(struct puffs_usermount *, 215 puffs_cookie_t, int, const struct puffs_cred *); 216 int perfuse_node_close(struct puffs_usermount *, 217 puffs_cookie_t, int, const struct puffs_cred *); 218 int perfuse_node_access(struct puffs_usermount *, 219 puffs_cookie_t, int, const struct puffs_cred *); 220 int perfuse_node_getattr(struct puffs_usermount *, 221 puffs_cookie_t, struct vattr *, const struct puffs_cred *); 222 int perfuse_node_setattr(struct puffs_usermount *, 223 puffs_cookie_t, const struct vattr *, const struct puffs_cred *); 224 int perfuse_node_poll(struct puffs_usermount *, puffs_cookie_t, int *); 225 int perfuse_node_fsync(struct puffs_usermount *, 226 puffs_cookie_t, const struct puffs_cred *, int, off_t, off_t); 227 int perfuse_node_remove(struct puffs_usermount *, 228 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 229 int perfuse_node_link(struct puffs_usermount *, 230 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 231 int perfuse_node_rename(struct puffs_usermount *, 232 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *, 233 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 234 int perfuse_node_mkdir(struct puffs_usermount *, 235 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 236 const struct vattr *); 237 int perfuse_node_rmdir(struct puffs_usermount *, 238 puffs_cookie_t, puffs_cookie_t, const struct puffs_cn *); 239 int perfuse_node_symlink(struct puffs_usermount *, 240 puffs_cookie_t, struct puffs_newinfo *, const struct puffs_cn *, 241 const struct vattr *, const char *); 242 int perfuse_node_readdir(struct puffs_usermount *, 243 puffs_cookie_t, struct dirent *, off_t *, size_t *, 244 const struct puffs_cred *, int *, off_t *, size_t *); 245 int perfuse_node_readlink(struct puffs_usermount *, 246 puffs_cookie_t, const struct puffs_cred *, char *, size_t *); 247 int perfuse_node_reclaim(struct puffs_usermount *, puffs_cookie_t); 248 int perfuse_node_reclaim2(struct puffs_usermount *, puffs_cookie_t, int); 249 int perfuse_node_inactive(struct puffs_usermount *, puffs_cookie_t); 250 int perfuse_node_print(struct puffs_usermount *, puffs_cookie_t); 251 int perfuse_node_pathconf(struct puffs_usermount *, 252 puffs_cookie_t, int, register_t *); 253 int perfuse_node_advlock(struct puffs_usermount *, 254 puffs_cookie_t, void *, int, struct flock *, int); 255 int perfuse_node_read(struct puffs_usermount *, puffs_cookie_t, 256 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 257 int perfuse_node_write(struct puffs_usermount *, puffs_cookie_t, 258 uint8_t *, off_t, size_t *, const struct puffs_cred *, int); 259 int perfuse_node_write2(struct puffs_usermount *, puffs_cookie_t, 260 uint8_t *, off_t, size_t *, const struct puffs_cred *, int, int); 261 int perfuse_node_open2(struct puffs_usermount *, 262 puffs_cookie_t, int, const struct puffs_cred *, int *); 263 void perfuse_cache_write(struct puffs_usermount *, 264 puffs_cookie_t, size_t, struct puffs_cacherun *); 265 int perfuse_node_getextattr(struct puffs_usermount *, puffs_cookie_t, 266 int, const char *, size_t *, uint8_t *, size_t *, 267 const struct puffs_cred *); 268 int perfuse_node_setextattr(struct puffs_usermount *, puffs_cookie_t, 269 int, const char *, uint8_t *, size_t *, const struct puffs_cred *); 270 int perfuse_node_listextattr(struct puffs_usermount *, puffs_cookie_t, 271 int, size_t *, uint8_t *, size_t *, int, const struct puffs_cred *); 272 int perfuse_node_deleteextattr(struct puffs_usermount *, puffs_cookie_t, 273 int, const char *, const struct puffs_cred *); 274 int perfuse_node_getattr_ttl(struct puffs_usermount *, 275 puffs_cookie_t, struct vattr *, const struct puffs_cred *, 276 struct timespec *); 277 int perfuse_node_setattr_ttl(struct puffs_usermount *, 278 puffs_cookie_t, struct vattr *, const struct puffs_cred *, 279 struct timespec *, int); 280 int perfuse_node_fallocate(struct puffs_usermount *, 281 puffs_cookie_t, off_t, off_t); 282 283 struct perfuse_trace *perfuse_trace_begin(struct perfuse_state *, 284 puffs_cookie_t, perfuse_msg_t *); 285 void perfuse_trace_end(struct perfuse_state *, struct perfuse_trace *, int); 286 char *perfuse_opdump_in(struct perfuse_state *, perfuse_msg_t *); 287 struct perfuse_node_data *perfuse_node_bynodeid(struct perfuse_state *, 288 uint64_t); 289 void perfuse_node_cache(struct perfuse_state *, puffs_cookie_t); 290 void perfuse_cache_flush(puffs_cookie_t); 291 292 __END_DECLS 293 294 #endif /* _PERFUSE_PRIV_H_ */ 295
Indexes created Sun Sep 21 19:09:51 GMT 2025