netbsd32_compat_20.c revision 1.2
1 /* $NetBSD: netbsd32_compat_20.c,v 1.2 2005/08/19 04:24:38 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Matthew R. Green 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_20.c,v 1.2 2005/08/19 04:24:38 christos Exp $"); 33 34 #if defined(_KERNEL_OPT) 35 #include "opt_ktrace.h" 36 #endif 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/malloc.h> 41 #include <sys/mount.h> 42 #include <sys/stat.h> 43 #include <sys/time.h> 44 #include <sys/ktrace.h> 45 #include <sys/vnode.h> 46 #include <sys/file.h> 47 #include <sys/filedesc.h> 48 #include <sys/namei.h> 49 #include <sys/sa.h> 50 #include <sys/syscallargs.h> 51 #include <sys/proc.h> 52 #include <sys/dirent.h> 53 54 #include <compat/netbsd32/netbsd32.h> 55 #include <compat/netbsd32/netbsd32_syscallargs.h> 56 #include <compat/netbsd32/netbsd32_conv.h> 57 58 static __inline void compat_20_netbsd32_from_statvfs(struct statvfs *, 59 struct netbsd32_statfs *); 60 61 static __inline void 62 compat_20_netbsd32_from_statvfs(sbp, sb32p) 63 struct statvfs *sbp; 64 struct netbsd32_statfs *sb32p; 65 { 66 sb32p->f_flags = sbp->f_flag; 67 sb32p->f_bsize = (netbsd32_long)sbp->f_bsize; 68 sb32p->f_iosize = (netbsd32_long)sbp->f_iosize; 69 sb32p->f_blocks = (netbsd32_long)sbp->f_blocks; 70 sb32p->f_bfree = (netbsd32_long)sbp->f_bfree; 71 sb32p->f_bavail = (netbsd32_long)sbp->f_bavail; 72 sb32p->f_files = (netbsd32_long)sbp->f_files; 73 sb32p->f_ffree = (netbsd32_long)sbp->f_ffree; 74 sb32p->f_fsid = sbp->f_fsidx; 75 sb32p->f_owner = sbp->f_owner; 76 sb32p->f_spare[0] = 0; 77 sb32p->f_spare[1] = 0; 78 sb32p->f_spare[2] = 0; 79 sb32p->f_spare[3] = 0; 80 #if 1 81 /* May as well do the whole batch in one go */ 82 memcpy(sb32p->f_fstypename, sbp->f_fstypename, MFSNAMELEN+MNAMELEN+MNAMELEN); 83 #else 84 /* If we want to be careful */ 85 memcpy(sb32p->f_fstypename, sbp->f_fstypename, MFSNAMELEN); 86 memcpy(sb32p->f_mntonname, sbp->f_mntonname, MNAMELEN); 87 memcpy(sb32p->f_mntfromname, sbp->f_mntfromname, MNAMELEN); 88 #endif 89 } 90 91 int 92 compat_20_netbsd32_getfsstat(l, v, retval) 93 struct lwp *l; 94 void *v; 95 register_t *retval; 96 { 97 struct compat_20_netbsd32_getfsstat_args /* { 98 syscallarg(netbsd32_statfsp_t) buf; 99 syscallarg(netbsd32_long) bufsize; 100 syscallarg(int) flags; 101 } */ *uap = v; 102 struct mount *mp, *nmp; 103 struct statvfs *sp; 104 struct netbsd32_statfs sb32; 105 caddr_t sfsp; 106 long count, maxcount, error; 107 struct proc *p = l->l_proc; 108 109 maxcount = SCARG(uap, bufsize) / sizeof(struct netbsd32_statfs); 110 sfsp = (caddr_t)NETBSD32PTR64(SCARG(uap, buf)); 111 simple_lock(&mountlist_slock); 112 count = 0; 113 for (mp = mountlist.cqh_first; mp != (void *)&mountlist; mp = nmp) { 114 if (vfs_busy(mp, LK_NOWAIT, &mountlist_slock)) { 115 nmp = mp->mnt_list.cqe_next; 116 continue; 117 } 118 if (sfsp && count < maxcount) { 119 sp = &mp->mnt_stat; 120 /* 121 * If MNT_NOWAIT or MNT_LAZY is specified, do not 122 * refresh the fsstat cache. MNT_WAIT or MNT_LAXY 123 * overrides MNT_NOWAIT. 124 */ 125 if (SCARG(uap, flags) != MNT_NOWAIT && 126 SCARG(uap, flags) != MNT_LAZY && 127 (SCARG(uap, flags) == MNT_WAIT || 128 SCARG(uap, flags) == 0) && 129 (error = VFS_STATVFS(mp, sp, p)) != 0) { 130 simple_lock(&mountlist_slock); 131 nmp = mp->mnt_list.cqe_next; 132 vfs_unbusy(mp); 133 continue; 134 } 135 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 136 compat_20_netbsd32_from_statvfs(sp, &sb32); 137 error = copyout(&sb32, sfsp, sizeof(sb32)); 138 if (error) { 139 vfs_unbusy(mp); 140 return (error); 141 } 142 sfsp += sizeof(sb32); 143 } 144 count++; 145 simple_lock(&mountlist_slock); 146 nmp = mp->mnt_list.cqe_next; 147 vfs_unbusy(mp); 148 } 149 simple_unlock(&mountlist_slock); 150 if (sfsp && count > maxcount) 151 *retval = maxcount; 152 else 153 *retval = count; 154 return (0); 155 } 156 157 int 158 compat_20_netbsd32_statfs(l, v, retval) 159 struct lwp *l; 160 void *v; 161 register_t *retval; 162 { 163 struct compat_20_netbsd32_statfs_args /* { 164 syscallarg(const netbsd32_charp) path; 165 syscallarg(netbsd32_statfsp_t) buf; 166 } */ *uap = v; 167 struct mount *mp; 168 struct statvfs *sp; 169 struct netbsd32_statfs s32; 170 int error; 171 struct nameidata nd; 172 struct proc *p = l->l_proc; 173 174 NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, 175 (char *)NETBSD32PTR64(SCARG(uap, path)), p); 176 if ((error = namei(&nd)) != 0) 177 return (error); 178 mp = nd.ni_vp->v_mount; 179 sp = &mp->mnt_stat; 180 vrele(nd.ni_vp); 181 if ((error = VFS_STATVFS(mp, sp, p)) != 0) 182 return (error); 183 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 184 compat_20_netbsd32_from_statvfs(sp, &s32); 185 return (copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, buf)), 186 sizeof(s32))); 187 } 188 189 int 190 compat_20_netbsd32_fstatfs(l, v, retval) 191 struct lwp *l; 192 void *v; 193 register_t *retval; 194 { 195 struct compat_20_netbsd32_fstatfs_args /* { 196 syscallarg(int) fd; 197 syscallarg(netbsd32_statfsp_t) buf; 198 } */ *uap = v; 199 struct file *fp; 200 struct mount *mp; 201 struct statvfs *sp; 202 struct netbsd32_statfs s32; 203 int error; 204 struct proc *p = l->l_proc; 205 206 /* getvnode() will use the descriptor for us */ 207 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 208 return (error); 209 mp = ((struct vnode *)fp->f_data)->v_mount; 210 sp = &mp->mnt_stat; 211 if ((error = VFS_STATVFS(mp, sp, p)) != 0) 212 goto out; 213 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 214 compat_20_netbsd32_from_statvfs(sp, &s32); 215 error = copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, buf)), 216 sizeof(s32)); 217 out: 218 FILE_UNUSE(fp, p); 219 return (error); 220 } 221 222 int 223 compat_20_netbsd32_fhstatfs(l, v, retval) 224 struct lwp *l; 225 void *v; 226 register_t *retval; 227 { 228 struct compat_20_netbsd32_fhstatfs_args /* { 229 syscallarg(const netbsd32_fhandlep_t) fhp; 230 syscallarg(struct statvfs *) buf; 231 } */ *uap = v; 232 struct sys_fhstatvfs1_args ua; 233 234 NETBSD32TOP_UAP(fhp, const fhandle_t); 235 NETBSD32TOP_UAP(buf, struct statvfs); 236 #ifdef notyet 237 NETBSD32TOP_UAP(flags, int); 238 #endif 239 return (sys_fhstatvfs1(l, &ua, retval)); 240 } 241
Indexes created Sun Sep 21 20:09:37 GMT 2025