Annotation of src/sys/fs/puffs/puffs_sys.h, Revision 1.24.2.4
1.24.2.4! yamt 1: /* $NetBSD: puffs_sys.h,v 1.24.2.3 2007/04/15 16:03:46 yamt Exp $ */
1.1 pooka 2:
3: /*
4: * Copyright (c) 2005, 2006 Antti Kantee. All Rights Reserved.
5: *
6: * Development of this software was supported by the
7: * Google Summer of Code program and the Ulla Tuominen Foundation.
8: * The Google SoC project was mentored by Bill Studenmund.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. The name of the company nor the name of the author may be used to
19: * endorse or promote products derived from this software without specific
20: * prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
23: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25: * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: */
34:
35: #ifndef _PUFFS_SYS_H_
36: #define _PUFFS_SYS_H_
37:
38: #include <sys/param.h>
39: #include <sys/select.h>
40: #include <sys/kauth.h>
1.24.2.3 yamt 41: #include <sys/mutex.h>
1.1 pooka 42: #include <sys/queue.h>
1.4 pooka 43: #include <sys/pool.h>
1.1 pooka 44:
45: #include <fs/puffs/puffs_msgif.h>
46:
1.6 pooka 47: #include <miscfs/genfs/genfs_node.h>
48:
1.2 pooka 49: extern int (**puffs_vnodeop_p)(void *);
50: extern int (**puffs_specop_p)(void *);
1.3 pooka 51: extern int (**puffs_fifoop_p)(void *);
1.2 pooka 52:
53: extern const struct vnodeopv_desc puffs_vnodeop_opv_desc;
54: extern const struct vnodeopv_desc puffs_specop_opv_desc;
1.3 pooka 55: extern const struct vnodeopv_desc puffs_fifoop_opv_desc;
1.10 pooka 56: extern const struct vnodeopv_desc puffs_msgop_opv_desc;
1.2 pooka 57:
1.4 pooka 58: extern struct pool puffs_pnpool;
59:
1.17 pooka 60: #define PUFFS_NAMEPREFIX "puffs:"
61:
1.1 pooka 62: #define PUFFS_SIZEOPREQ_UIO_IN 1
63: #define PUFFS_SIZEOPREQ_UIO_OUT 2
64: #define PUFFS_SIZEOPREQ_BUF_IN 3
65: #define PUFFS_SIZEOPREQ_BUF_OUT 4
66:
67: #define PUFFS_SIZEOP_UIO(a) \
68: (((a)==PUFFS_SIZEOPREQ_UIO_IN)||(a)==PUFFS_SIZEOPREQ_UIO_OUT)
69: #define PUFFS_SIZEOP_BUF(a) \
70: (((a)==PUFFS_SIZEOPREQ_BUF_IN)||(a)==PUFFS_SIZEOPREQ_BUF_OUT)
71:
72: /* XXX: alignment-optimization */
73: struct puffs_sizepark {
74: uint64_t pkso_reqid;
75: uint8_t pkso_reqtype;
76:
77: struct uio *pkso_uio;
78: void *pkso_copybuf;
79: size_t pkso_bufsize;
80:
81: TAILQ_ENTRY(puffs_sizepark) pkso_entries;
82: };
83:
1.12 pooka 84: #ifdef DEBUG
1.24 pooka 85: #ifndef PUFFSDEBUG
86: #define PUFFSDEBUG
87: #endif
88: #endif
89:
90: #ifdef PUFFSDEBUG
1.12 pooka 91: extern int puffsdebug; /* puffs_subr.c */
92: #define DPRINTF(x) if (puffsdebug > 0) printf x
93: #define DPRINTF_VERBOSE(x) if (puffsdebug > 1) printf x
94: #else
1.1 pooka 95: #define DPRINTF(x)
1.10 pooka 96: #define DPRINTF_VERBOSE(x)
1.12 pooka 97: #endif
1.1 pooka 98:
99: #define MPTOPUFFSMP(mp) ((struct puffs_mount *)((mp)->mnt_data))
100: #define PMPTOMP(pmp) (pmp->pmp_mp)
101: #define VPTOPP(vp) ((struct puffs_node *)(vp)->v_data)
102: #define VPTOPNC(vp) (((struct puffs_node *)(vp)->v_data)->pn_cookie)
103: #define VPTOPUFFSMP(vp) ((struct puffs_mount*)((struct puffs_node*)vp->v_data))
104: #define FPTOPMP(fp) (((struct puffs_instance *)fp->f_data)->pi_pmp)
105: #define FPTOPI(fp) ((struct puffs_instance *)fp->f_data)
106:
1.24.2.4! yamt 107: /* we don't pass the kernel overlay to userspace */
! 108: #define PUFFS_TOFHSIZE(s) ((s)==0 ? (s) : (s)+4)
! 109: #define PUFFS_FROMFHSIZE(s) ((s)==0 ? (s) : (s)-4)
! 110:
1.10 pooka 111: #define EXISTSOP(pmp, op) \
1.11 pooka 112: (((pmp)->pmp_flags&PUFFS_KFLAG_ALLOPS) || ((pmp)->pmp_vnopmask[PUFFS_VN_##op]))
1.10 pooka 113:
1.16 pooka 114: #define PUFFS_DOCACHE(pmp) (((pmp)->pmp_flags & PUFFS_KFLAG_NOCACHE) == 0)
115:
1.24.2.2 yamt 116: #define PUFFS_WCACHEINFO(pmp) 0
117:
1.1 pooka 118: TAILQ_HEAD(puffs_wq, puffs_park);
1.20 pooka 119: LIST_HEAD(puffs_node_hashlist, puffs_node);
1.1 pooka 120: struct puffs_mount {
1.24.2.3 yamt 121: kmutex_t pmp_lock;
1.1 pooka 122:
1.24.2.3 yamt 123: struct puffs_kargs pmp_args;
1.10 pooka 124: #define pmp_flags pmp_args.pa_flags
125: #define pmp_vnopmask pmp_args.pa_vnopmask
1.1 pooka 126:
127: struct puffs_wq pmp_req_touser;
1.24.2.4! yamt 128: int pmp_req_touser_count;
1.24.2.3 yamt 129: kcondvar_t pmp_req_waiter_cv;
1.1 pooka 130: size_t pmp_req_maxsize;
131:
132: struct puffs_wq pmp_req_replywait;
133: TAILQ_HEAD(, puffs_sizepark) pmp_req_sizepark;
134:
1.20 pooka 135: struct puffs_node_hashlist *pmp_pnodehash;
1.24.2.4! yamt 136: int pmp_npnodehash;
1.1 pooka 137:
138: struct mount *pmp_mp;
139: struct vnode *pmp_root;
140: void *pmp_rootcookie;
141: struct selinfo *pmp_sel; /* in puffs_instance */
142:
1.24.2.4! yamt 143: unsigned int pmp_refcount;
! 144: kcondvar_t pmp_refcount_cv;
1.24.2.3 yamt 145:
1.24.2.4! yamt 146: kcondvar_t pmp_unmounting_cv;
1.14 pooka 147: uint8_t pmp_unmounting;
1.24.2.4! yamt 148:
! 149: uint8_t pmp_status;
1.22 pooka 150: uint8_t pmp_suspend;
1.24.2.3 yamt 151:
152: uint64_t pmp_nextreq;
1.1 pooka 153: };
1.8 pooka 154:
1.1 pooka 155: #define PUFFSTAT_BEFOREINIT 0
156: #define PUFFSTAT_MOUNTING 1
157: #define PUFFSTAT_RUNNING 2
1.14 pooka 158: #define PUFFSTAT_DYING 3 /* Do you want your possessions identified? */
1.1 pooka 159:
1.24.2.2 yamt 160:
1.22 pooka 161: #define PNODE_NOREFS 0x01 /* vnode inactive, no backend reference */
162: #define PNODE_SUSPEND 0x02 /* issue all operations as FAF */
1.24.2.2 yamt 163:
164: #define PNODE_METACACHE_ATIME 0x10 /* cache atime metadata */
165: #define PNODE_METACACHE_CTIME 0x20 /* cache atime metadata */
166: #define PNODE_METACACHE_MTIME 0x40 /* cache atime metadata */
167: #define PNODE_METACACHE_SIZE 0x80 /* cache atime metadata */
168: #define PNODE_METACACHE_MASK 0xf0
169:
1.1 pooka 170: struct puffs_node {
1.6 pooka 171: struct genfs_node pn_gnode; /* genfs glue */
172:
1.1 pooka 173: void *pn_cookie; /* userspace pnode cookie */
174: struct vnode *pn_vp; /* backpointer to vnode */
175: uint32_t pn_stat; /* node status */
176:
1.24.2.2 yamt 177: /* metacache */
178: struct timespec pn_mc_atime;
179: struct timespec pn_mc_ctime;
180: struct timespec pn_mc_mtime;
181: u_quad_t pn_mc_size;
182:
1.20 pooka 183: LIST_ENTRY(puffs_node) pn_hashent;
1.1 pooka 184: };
185:
1.24.2.3 yamt 186: typedef void (*parkdone_fn)(struct puffs_req *, void *);
187:
188: void puffs_transport_init(void);
189: void puffs_transport_destroy(void);
190:
191: void puffs_msgif_init(void);
192: void puffs_msgif_destroy(void);
193: void *puffs_park_alloc(int);
194: void puffs_park_release(void *, int);
195:
1.7 pooka 196: int puffs_start2(struct puffs_mount *, struct puffs_startreq *);
1.1 pooka 197:
198: int puffs_vfstouser(struct puffs_mount *, int, void *, size_t);
1.22 pooka 199: void puffs_suspendtouser(struct puffs_mount *, int);
1.24.2.3 yamt 200: int puffs_vntouser(struct puffs_mount *, int, void *, size_t, size_t,
201: void *, struct vnode *, struct vnode *);
1.6 pooka 202: void puffs_vntouser_faf(struct puffs_mount *, int, void *, size_t, void *);
1.24.2.3 yamt 203: int puffs_vntouser_req(struct puffs_mount *, int, void *, size_t, size_t,
1.6 pooka 204: void *, uint64_t, struct vnode *, struct vnode *);
1.24.2.3 yamt 205: void puffs_vntouser_call(struct puffs_mount *, int, void *, size_t, size_t,
206: void *, parkdone_fn, void *,
207: struct vnode *, struct vnode *);
1.24.2.2 yamt 208: void puffs_vntouser_faf(struct puffs_mount *, int, void *, size_t, void *);
209: void puffs_cacheop(struct puffs_mount *, struct puffs_park *,
210: struct puffs_cacheinfo *, size_t, void *);
211: struct puffs_park *puffs_cacheop_alloc(void);
1.1 pooka 212:
1.6 pooka 213: int puffs_getvnode(struct mount *, void *, enum vtype, voff_t, dev_t,
1.2 pooka 214: struct vnode **);
1.1 pooka 215: int puffs_newnode(struct mount *, struct vnode *, struct vnode **,
1.2 pooka 216: void *, struct componentname *, enum vtype, dev_t);
1.1 pooka 217: void puffs_putvnode(struct vnode *);
1.18 pooka 218: struct vnode *puffs_pnode2vnode(struct puffs_mount *, void *, int);
1.15 pooka 219: void puffs_makecn(struct puffs_kcn *, const struct componentname *);
1.1 pooka 220: void puffs_credcvt(struct puffs_cred *, kauth_cred_t);
221: pid_t puffs_lwp2pid(struct lwp *);
222:
1.24.2.3 yamt 223: void puffs_parkdone_asyncbioread(struct puffs_req *, void *);
224:
1.24.2.4! yamt 225: void puffs_mp_reference(struct puffs_mount *);
! 226: void puffs_mp_release(struct puffs_mount *);
! 227:
1.6 pooka 228: void puffs_updatenode(struct vnode *, int);
229: #define PUFFS_UPDATEATIME 0x01
230: #define PUFFS_UPDATECTIME 0x02
231: #define PUFFS_UPDATEMTIME 0x04
232: #define PUFFS_UPDATESIZE 0x08
1.9 pooka 233: void puffs_updatevpsize(struct vnode *);
1.6 pooka 234:
1.1 pooka 235: int puffs_setpmp(pid_t, int, struct puffs_mount *);
236: void puffs_nukebypmp(struct puffs_mount *);
237:
1.24.2.3 yamt 238: uint64_t puffs_getreqid(struct puffs_mount *);
239: void puffs_userdead(struct puffs_mount *);
1.1 pooka 240:
1.13 pooka 241: /* get/put called by ioctl handler */
242: int puffs_getop(struct puffs_mount *, struct puffs_reqh_get *, int);
243: int puffs_putop(struct puffs_mount *, struct puffs_reqh_put *);
244:
1.1 pooka 245: extern int (**puffs_vnodeop_p)(void *);
246:
247: MALLOC_DECLARE(M_PUFFS);
248:
249: #endif /* _PUFFS_SYS_H_ */
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