netbsd32_compat_20.c revision 1.3
1 /* $NetBSD: netbsd32_compat_20.c,v 1.3 2005/12/11 12:20:22 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 1.3 2005/12/11 12:20:22 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; 107 108 maxcount = SCARG(uap, bufsize) / sizeof(struct netbsd32_statfs); 109 sfsp = (caddr_t)NETBSD32PTR64(SCARG(uap, buf)); 110 simple_lock(&mountlist_slock); 111 count = 0; 112 for (mp = mountlist.cqh_first; mp != (void *)&mountlist; mp = nmp) { 113 if (vfs_busy(mp, LK_NOWAIT, &mountlist_slock)) { 114 nmp = mp->mnt_list.cqe_next; 115 continue; 116 } 117 if (sfsp && count < maxcount) { 118 sp = &mp->mnt_stat; 119 /* 120 * If MNT_NOWAIT or MNT_LAZY is specified, do not 121 * refresh the fsstat cache. MNT_WAIT or MNT_LAXY 122 * overrides MNT_NOWAIT. 123 */ 124 if (SCARG(uap, flags) != MNT_NOWAIT && 125 SCARG(uap, flags) != MNT_LAZY && 126 (SCARG(uap, flags) == MNT_WAIT || 127 SCARG(uap, flags) == 0) && 128 (error = VFS_STATVFS(mp, sp, l)) != 0) { 129 simple_lock(&mountlist_slock); 130 nmp = mp->mnt_list.cqe_next; 131 vfs_unbusy(mp); 132 continue; 133 } 134 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 135 compat_20_netbsd32_from_statvfs(sp, &sb32); 136 error = copyout(&sb32, sfsp, sizeof(sb32)); 137 if (error) { 138 vfs_unbusy(mp); 139 return (error); 140 } 141 sfsp += sizeof(sb32); 142 } 143 count++; 144 simple_lock(&mountlist_slock); 145 nmp = mp->mnt_list.cqe_next; 146 vfs_unbusy(mp); 147 } 148 simple_unlock(&mountlist_slock); 149 if (sfsp && count > maxcount) 150 *retval = maxcount; 151 else 152 *retval = count; 153 return (0); 154 } 155 156 int 157 compat_20_netbsd32_statfs(l, v, retval) 158 struct lwp *l; 159 void *v; 160 register_t *retval; 161 { 162 struct compat_20_netbsd32_statfs_args /* { 163 syscallarg(const netbsd32_charp) path; 164 syscallarg(netbsd32_statfsp_t) buf; 165 } */ *uap = v; 166 struct mount *mp; 167 struct statvfs *sp; 168 struct netbsd32_statfs s32; 169 int error; 170 struct nameidata nd; 171 172 NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, 173 (char *)NETBSD32PTR64(SCARG(uap, path)), l); 174 if ((error = namei(&nd)) != 0) 175 return (error); 176 mp = nd.ni_vp->v_mount; 177 sp = &mp->mnt_stat; 178 vrele(nd.ni_vp); 179 if ((error = VFS_STATVFS(mp, sp, l)) != 0) 180 return (error); 181 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 182 compat_20_netbsd32_from_statvfs(sp, &s32); 183 return (copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, buf)), 184 sizeof(s32))); 185 } 186 187 int 188 compat_20_netbsd32_fstatfs(l, v, retval) 189 struct lwp *l; 190 void *v; 191 register_t *retval; 192 { 193 struct compat_20_netbsd32_fstatfs_args /* { 194 syscallarg(int) fd; 195 syscallarg(netbsd32_statfsp_t) buf; 196 } */ *uap = v; 197 struct file *fp; 198 struct mount *mp; 199 struct statvfs *sp; 200 struct netbsd32_statfs s32; 201 int error; 202 struct proc *p = l->l_proc; 203 204 /* getvnode() will use the descriptor for us */ 205 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 206 return (error); 207 mp = ((struct vnode *)fp->f_data)->v_mount; 208 sp = &mp->mnt_stat; 209 if ((error = VFS_STATVFS(mp, sp, l)) != 0) 210 goto out; 211 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 212 compat_20_netbsd32_from_statvfs(sp, &s32); 213 error = copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, buf)), 214 sizeof(s32)); 215 out: 216 FILE_UNUSE(fp, l); 217 return (error); 218 } 219 220 int 221 compat_20_netbsd32_fhstatfs(l, v, retval) 222 struct lwp *l; 223 void *v; 224 register_t *retval; 225 { 226 struct compat_20_netbsd32_fhstatfs_args /* { 227 syscallarg(const netbsd32_fhandlep_t) fhp; 228 syscallarg(struct statvfs *) buf; 229 } */ *uap = v; 230 struct sys_fhstatvfs1_args ua; 231 232 NETBSD32TOP_UAP(fhp, const fhandle_t); 233 NETBSD32TOP_UAP(buf, struct statvfs); 234 #ifdef notyet 235 NETBSD32TOP_UAP(flags, int); 236 #endif 237 return (sys_fhstatvfs1(l, &ua, retval)); 238 } 239
Indexes created Mon Sep 22 21:09:42 GMT 2025