netbsd32_compat_20.c revision 1.1.2.4
1 /* $NetBSD: netbsd32_compat_20.c,v 1.1.2.4 2004/09/18 14:43:58 skrll 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 1.1.2.4 2004/09/18 14:43:58 skrll 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 53 #include <compat/netbsd32/netbsd32.h> 54 #include <compat/netbsd32/netbsd32_syscallargs.h> 55 #include <compat/netbsd32/netbsd32_conv.h> 56 57 static __inline void compat_20_netbsd32_from_statvfs(struct statvfs *, 58 struct netbsd32_statfs *); 59 60 static __inline void 61 compat_20_netbsd32_from_statvfs(sbp, sb32p) 62 struct statvfs *sbp; 63 struct netbsd32_statfs *sb32p; 64 { 65 sb32p->f_flags = sbp->f_flag; 66 sb32p->f_bsize = (netbsd32_long)sbp->f_bsize; 67 sb32p->f_iosize = (netbsd32_long)sbp->f_iosize; 68 sb32p->f_blocks = (netbsd32_long)sbp->f_blocks; 69 sb32p->f_bfree = (netbsd32_long)sbp->f_bfree; 70 sb32p->f_bavail = (netbsd32_long)sbp->f_bavail; 71 sb32p->f_files = (netbsd32_long)sbp->f_files; 72 sb32p->f_ffree = (netbsd32_long)sbp->f_ffree; 73 sb32p->f_fsid = sbp->f_fsidx; 74 sb32p->f_owner = sbp->f_owner; 75 sb32p->f_spare[0] = 0; 76 sb32p->f_spare[1] = 0; 77 sb32p->f_spare[2] = 0; 78 sb32p->f_spare[3] = 0; 79 #if 1 80 /* May as well do the whole batch in one go */ 81 memcpy(sb32p->f_fstypename, sbp->f_fstypename, MFSNAMELEN+MNAMELEN+MNAMELEN); 82 #else 83 /* If we want to be careful */ 84 memcpy(sb32p->f_fstypename, sbp->f_fstypename, MFSNAMELEN); 85 memcpy(sb32p->f_mntonname, sbp->f_mntonname, MNAMELEN); 86 memcpy(sb32p->f_mntfromname, sbp->f_mntfromname, MNAMELEN); 87 #endif 88 } 89 90 int 91 compat_20_netbsd32_getfsstat(l, v, retval) 92 struct lwp *l; 93 void *v; 94 register_t *retval; 95 { 96 struct compat_20_netbsd32_getfsstat_args /* { 97 syscallarg(netbsd32_statfsp_t) buf; 98 syscallarg(netbsd32_long) bufsize; 99 syscallarg(int) flags; 100 } */ *uap = v; 101 struct mount *mp, *nmp; 102 struct statvfs *sp; 103 struct netbsd32_statfs sb32; 104 caddr_t sfsp; 105 long count, maxcount, error; 106 struct proc *p = l->l_proc; 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, p)) != 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 struct proc *p = l->l_proc; 172 173 NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, 174 (char *)NETBSD32PTR64(SCARG(uap, path)), p); 175 if ((error = namei(&nd)) != 0) 176 return (error); 177 mp = nd.ni_vp->v_mount; 178 sp = &mp->mnt_stat; 179 vrele(nd.ni_vp); 180 if ((error = VFS_STATVFS(mp, sp, p)) != 0) 181 return (error); 182 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 183 compat_20_netbsd32_from_statvfs(sp, &s32); 184 return (copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, buf)), 185 sizeof(s32))); 186 } 187 188 int 189 compat_20_netbsd32_fstatfs(l, v, retval) 190 struct lwp *l; 191 void *v; 192 register_t *retval; 193 { 194 struct compat_20_netbsd32_fstatfs_args /* { 195 syscallarg(int) fd; 196 syscallarg(netbsd32_statfsp_t) buf; 197 } */ *uap = v; 198 struct file *fp; 199 struct mount *mp; 200 struct statvfs *sp; 201 struct netbsd32_statfs s32; 202 int error; 203 struct proc *p = l->l_proc; 204 205 /* getvnode() will use the descriptor for us */ 206 if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) 207 return (error); 208 mp = ((struct vnode *)fp->f_data)->v_mount; 209 sp = &mp->mnt_stat; 210 if ((error = VFS_STATVFS(mp, sp, p)) != 0) 211 goto out; 212 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 213 compat_20_netbsd32_from_statvfs(sp, &s32); 214 error = copyout(&s32, (caddr_t)NETBSD32PTR64(SCARG(uap, buf)), 215 sizeof(s32)); 216 out: 217 FILE_UNUSE(fp, p); 218 return (error); 219 } 220 221 int 222 compat_20_netbsd32_fhstatfs(l, v, retval) 223 struct lwp *l; 224 void *v; 225 register_t *retval; 226 { 227 struct compat_20_netbsd32_fhstatfs_args /* { 228 syscallarg(const netbsd32_fhandlep_t) fhp; 229 syscallarg(struct statvfs *) buf; 230 } */ *uap = v; 231 struct sys_fhstatvfs1_args ua; 232 233 NETBSD32TOP_UAP(fhp, const fhandle_t); 234 NETBSD32TOP_UAP(buf, struct statvfs); 235 #ifdef notyet 236 NETBSD32TOP_UAP(flags, int); 237 #endif 238 return (sys_fhstatvfs1(l, &ua, retval)); 239 } 240
Indexes created Thu Oct 02 07:10:07 GMT 2025