compat_50_quota.c revision 1.3.2.2
1 1.3.2.2 martin /* $NetBSD: compat_50_quota.c,v 1.3.2.2 2020/04/08 14:08:00 martin Exp $ */ 2 1.3.2.2 martin 3 1.3.2.2 martin /*- 4 1.3.2.2 martin * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 1.3.2.2 martin * All rights reserved. 6 1.3.2.2 martin * 7 1.3.2.2 martin * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 martin * by Christos Zoulas. 9 1.3.2.2 martin * 10 1.3.2.2 martin * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 martin * modification, are permitted provided that the following conditions 12 1.3.2.2 martin * are met: 13 1.3.2.2 martin * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 martin * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 martin * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 martin * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 martin * documentation and/or other materials provided with the distribution. 18 1.3.2.2 martin * 19 1.3.2.2 martin * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.3.2.2 martin * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.3.2.2 martin * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.3.2.2 martin * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.3.2.2 martin * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.3.2.2 martin * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.3.2.2 martin * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.3.2.2 martin * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.3.2.2 martin * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.3.2.2 martin * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.3.2.2 martin * POSSIBILITY OF SUCH DAMAGE. 30 1.3.2.2 martin */ 31 1.3.2.2 martin #include <sys/cdefs.h> 32 1.3.2.2 martin __KERNEL_RCSID(0, "$NetBSD: compat_50_quota.c,v 1.3.2.2 2020/04/08 14:08:00 martin Exp $"); 33 1.3.2.2 martin 34 1.3.2.2 martin #if defined(_KERNEL_OPT) 35 1.3.2.2 martin #include "opt_compat_netbsd.h" 36 1.3.2.2 martin #endif 37 1.3.2.2 martin 38 1.3.2.2 martin #include <sys/module.h> 39 1.3.2.2 martin #include <sys/namei.h> 40 1.3.2.2 martin #include <sys/param.h> 41 1.3.2.2 martin #include <sys/quota.h> 42 1.3.2.2 martin #include <sys/quotactl.h> 43 1.3.2.2 martin #include <sys/systm.h> 44 1.3.2.2 martin #include <sys/syscall.h> 45 1.3.2.2 martin #include <sys/syscallvar.h> 46 1.3.2.2 martin #include <sys/syscallargs.h> 47 1.3.2.2 martin #include <sys/vfs_syscalls.h> 48 1.3.2.2 martin #include <sys/vnode.h> 49 1.3.2.2 martin 50 1.3.2.2 martin #include <ufs/ufs/quota1.h> 51 1.3.2.2 martin 52 1.3.2.2 martin static const struct syscall_package vfs_syscalls_50_quota_syscalls[] = { 53 1.3.2.2 martin { SYS_compat_50_quotactl, 0, (sy_call_t *)compat_50_sys_quotactl }, 54 1.3.2.2 martin { 0, 0, NULL } 55 1.3.2.2 martin }; 56 1.3.2.2 martin 57 1.3.2.2 martin /* ARGSUSED */ 58 1.3.2.2 martin int 59 1.3.2.2 martin compat_50_sys_quotactl(struct lwp *l, const struct compat_50_sys_quotactl_args *uap, register_t *retval) 60 1.3.2.2 martin { 61 1.3.2.2 martin /* { 62 1.3.2.2 martin syscallarg(const char *) path; 63 1.3.2.2 martin syscallarg(int) cmd; 64 1.3.2.2 martin syscallarg(int) uid; 65 1.3.2.2 martin syscallarg(void *) arg; 66 1.3.2.2 martin } */ 67 1.3.2.2 martin struct vnode *vp; 68 1.3.2.2 martin struct mount *mp; 69 1.3.2.2 martin int q1cmd; 70 1.3.2.2 martin int idtype; 71 1.3.2.2 martin char *qfile; 72 1.3.2.2 martin struct dqblk dqblk; 73 1.3.2.2 martin struct quotakey key; 74 1.3.2.2 martin struct quotaval blocks, files; 75 1.3.2.2 martin struct quotastat qstat; 76 1.3.2.2 martin int error; 77 1.3.2.2 martin 78 1.3.2.2 martin error = namei_simple_user(SCARG(uap, path), 79 1.3.2.2 martin NSM_FOLLOW_TRYEMULROOT, &vp); 80 1.3.2.2 martin if (error != 0) 81 1.3.2.2 martin return (error); 82 1.3.2.2 martin 83 1.3.2.2 martin mp = vp->v_mount; 84 1.3.2.2 martin q1cmd = SCARG(uap, cmd); 85 1.3.2.2 martin idtype = quota_idtype_from_ufs(q1cmd & SUBCMDMASK); 86 1.3.2.2 martin 87 1.3.2.2 martin switch ((q1cmd & ~SUBCMDMASK) >> SUBCMDSHIFT) { 88 1.3.2.2 martin case Q_QUOTAON: 89 1.3.2.2 martin qfile = PNBUF_GET(); 90 1.3.2.2 martin error = copyinstr(SCARG(uap, arg), qfile, PATH_MAX, NULL); 91 1.3.2.2 martin if (error != 0) { 92 1.3.2.2 martin PNBUF_PUT(qfile); 93 1.3.2.2 martin break; 94 1.3.2.2 martin } 95 1.3.2.2 martin 96 1.3.2.2 martin error = vfs_quotactl_quotaon(mp, idtype, qfile); 97 1.3.2.2 martin 98 1.3.2.2 martin PNBUF_PUT(qfile); 99 1.3.2.2 martin break; 100 1.3.2.2 martin 101 1.3.2.2 martin case Q_QUOTAOFF: 102 1.3.2.2 martin error = vfs_quotactl_quotaoff(mp, idtype); 103 1.3.2.2 martin break; 104 1.3.2.2 martin 105 1.3.2.2 martin case Q_GETQUOTA: 106 1.3.2.2 martin key.qk_idtype = idtype; 107 1.3.2.2 martin key.qk_id = SCARG(uap, uid); 108 1.3.2.2 martin 109 1.3.2.2 martin key.qk_objtype = QUOTA_OBJTYPE_BLOCKS; 110 1.3.2.2 martin error = vfs_quotactl_get(mp, &key, &blocks); 111 1.3.2.2 martin if (error) { 112 1.3.2.2 martin break; 113 1.3.2.2 martin } 114 1.3.2.2 martin 115 1.3.2.2 martin key.qk_objtype = QUOTA_OBJTYPE_FILES; 116 1.3.2.2 martin error = vfs_quotactl_get(mp, &key, &files); 117 1.3.2.2 martin if (error) { 118 1.3.2.2 martin break; 119 1.3.2.2 martin } 120 1.3.2.2 martin 121 1.3.2.2 martin quotavals_to_dqblk(&blocks, &files, &dqblk); 122 1.3.2.2 martin error = copyout(&dqblk, SCARG(uap, arg), sizeof(dqblk)); 123 1.3.2.2 martin break; 124 1.3.2.2 martin 125 1.3.2.2 martin case Q_SETQUOTA: 126 1.3.2.2 martin error = copyin(SCARG(uap, arg), &dqblk, sizeof(dqblk)); 127 1.3.2.2 martin if (error) { 128 1.3.2.2 martin break; 129 1.3.2.2 martin } 130 1.3.2.2 martin dqblk_to_quotavals(&dqblk, &blocks, &files); 131 1.3.2.2 martin 132 1.3.2.2 martin key.qk_idtype = idtype; 133 1.3.2.2 martin key.qk_id = SCARG(uap, uid); 134 1.3.2.2 martin 135 1.3.2.2 martin key.qk_objtype = QUOTA_OBJTYPE_BLOCKS; 136 1.3.2.2 martin error = vfs_quotactl_put(mp, &key, &blocks); 137 1.3.2.2 martin if (error) { 138 1.3.2.2 martin break; 139 1.3.2.2 martin } 140 1.3.2.2 martin 141 1.3.2.2 martin key.qk_objtype = QUOTA_OBJTYPE_FILES; 142 1.3.2.2 martin error = vfs_quotactl_put(mp, &key, &files); 143 1.3.2.2 martin break; 144 1.3.2.2 martin 145 1.3.2.2 martin case Q_SYNC: 146 1.3.2.2 martin /* 147 1.3.2.2 martin * not supported but used only to see if quota is supported, 148 1.3.2.2 martin * emulate with stat 149 1.3.2.2 martin * 150 1.3.2.2 martin * XXX should probably be supported 151 1.3.2.2 martin */ 152 1.3.2.2 martin (void)idtype; /* not used */ 153 1.3.2.2 martin 154 1.3.2.2 martin error = vfs_quotactl_stat(mp, &qstat); 155 1.3.2.2 martin break; 156 1.3.2.2 martin 157 1.3.2.2 martin case Q_SETUSE: 158 1.3.2.2 martin default: 159 1.3.2.2 martin error = EOPNOTSUPP; 160 1.3.2.2 martin break; 161 1.3.2.2 martin } 162 1.3.2.2 martin 163 1.3.2.2 martin vrele(vp); 164 1.3.2.2 martin return error; 165 1.3.2.2 martin } 166 1.3.2.2 martin 167 1.3.2.2 martin MODULE(MODULE_CLASS_EXEC, compat_50_quota, "compat_50,ufs"); 168 1.3.2.2 martin 169 1.3.2.2 martin static int 170 1.3.2.2 martin compat_50_quota_modcmd(modcmd_t cmd, void *arg) 171 1.3.2.2 martin { 172 1.3.2.2 martin 173 1.3.2.2 martin switch (cmd) { 174 1.3.2.2 martin case MODULE_CMD_INIT: 175 1.3.2.2 martin return syscall_establish(NULL, vfs_syscalls_50_quota_syscalls); 176 1.3.2.2 martin case MODULE_CMD_FINI: 177 1.3.2.2 martin return syscall_disestablish(NULL, vfs_syscalls_50_quota_syscalls); 178 1.3.2.2 martin default: 179 1.3.2.2 martin return ENOTTY; 180 1.3.2.2 martin } 181 1.3.2.2 martin } 182
Indexes created Mon Oct 27 08:10:08 GMT 2025