1 /* $NetBSD: linux32_resource.c,v 1.13 2021/12/02 04:29:49 ryo Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Emmanuel Dreyfus 17 * 4. The name of the author may not be used to endorse or promote 18 * products derived from this software without specific prior written 19 * permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS'' 22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 36 __KERNEL_RCSID(0, "$NetBSD: linux32_resource.c,v 1.13 2021/12/02 04:29:49 ryo Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/param.h> 40 #include <sys/fstypes.h> 41 #include <sys/signal.h> 42 #include <sys/dirent.h> 43 #include <sys/kernel.h> 44 #include <sys/fcntl.h> 45 #include <sys/select.h> 46 #include <sys/proc.h> 47 #include <sys/resourcevar.h> 48 #include <sys/ucred.h> 49 #include <sys/swap.h> 50 51 #include <machine/types.h> 52 53 #include <sys/syscallargs.h> 54 55 #include <compat/netbsd32/netbsd32.h> 56 #include <compat/netbsd32/netbsd32_conv.h> 57 #include <compat/netbsd32/netbsd32_syscallargs.h> 58 59 #include <compat/linux/common/linux_types.h> 60 #include <compat/linux/common/linux_signal.h> 61 #include <compat/linux/common/linux_machdep.h> 62 #include <compat/linux/common/linux_misc.h> 63 #include <compat/linux/common/linux_limit.h> 64 #include <compat/linux/common/linux_oldolduname.h> 65 #include <compat/linux/common/linux_ipc.h> 66 #include <compat/linux/common/linux_sem.h> 67 #include <compat/linux/linux_syscallargs.h> 68 69 #include <compat/linux32/common/linux32_types.h> 70 #include <compat/linux32/common/linux32_signal.h> 71 #include <compat/linux32/common/linux32_machdep.h> 72 #include <compat/linux32/common/linux32_sysctl.h> 73 #include <compat/linux32/common/linux32_socketcall.h> 74 #include <compat/linux32/linux32_syscallargs.h> 75 76 int 77 linux32_sys_getrlimit(struct lwp *l, const struct linux32_sys_getrlimit_args *uap, register_t *retval) 78 { 79 /* { 80 syscallarg(int) which; 81 syscallarg(netbsd32_orlimitp_t) rlp; 82 } */ 83 struct orlimit orl; 84 int which; 85 86 which = linux_to_bsd_limit(SCARG(uap, which)); 87 if (which < 0) 88 return -which; 89 90 memset(&orl, 0, sizeof(orl)); 91 bsd_to_linux_rlimit(&orl, &l->l_proc->p_rlimit[which]); 92 93 return copyout(&orl, SCARG_P32(uap, rlp), sizeof(orl)); 94 } 95 96 int 97 linux32_sys_setrlimit(struct lwp *l, const struct linux32_sys_setrlimit_args *uap, register_t *retval) 98 { 99 /* { 100 syscallarg(int) which; 101 syscallarg(netbsd32_orlimitp_t) rlp; 102 } */ 103 struct rlimit rl; 104 struct orlimit orl; 105 int error; 106 int which; 107 108 if ((error = copyin(SCARG_P32(uap, rlp), &orl, sizeof(orl))) != 0) 109 return error; 110 111 which = linux_to_bsd_limit(SCARG(uap, which)); 112 if (which < 0) 113 return -which; 114 115 linux32_to_bsd_rlimit(&rl, &orl); 116 117 return dosetrlimit(l, l->l_proc, which, &rl); 118 } 119 120 int 121 linux32_sys_ugetrlimit(struct lwp *l, const struct linux32_sys_ugetrlimit_args *uap, register_t *retval) 122 { 123 return linux32_sys_getrlimit(l, (const void *)uap, retval); 124 } 125 126 int 127 linux32_sys_prlimit64(struct lwp *l, const struct linux32_sys_prlimit64_args *uap, register_t *retval) 128 { 129 /* { 130 syscallarg(pid_t) pid; 131 syscallarg(int) which; 132 syscallarg(netbsd32_rlimitp_t) new_rlp; 133 syscallarg(netbsd32_rlimitp_t) old_rlp; 134 }; */ 135 struct rlimit rl, nrl, orl; 136 struct rlimit *p; 137 int which; 138 int error; 139 140 /* XXX: Cannot operate any process other than its own */ 141 if (SCARG(uap, pid) != 0) 142 return EPERM; 143 144 which = linux_to_bsd_limit(SCARG(uap, which)); 145 if (which < 0) 146 return -which; 147 148 p = SCARG_P32(uap, old_rlp); 149 if (p != NULL) { 150 memset(&orl, 0, sizeof(orl)); 151 bsd_to_linux_rlimit64(&orl, &l->l_proc->p_rlimit[which]); 152 if ((error = copyout(&orl, p, sizeof(orl))) != 0) 153 return error; 154 } 155 156 p = SCARG_P32(uap, new_rlp); 157 if (p != NULL) { 158 if ((error = copyin(p, &nrl, sizeof(nrl))) != 0) 159 return error; 160 161 linux_to_bsd_rlimit(&rl, &nrl); 162 return dosetrlimit(l, l->l_proc, which, &rl); 163 } 164 165 return 0; 166 } 167 168 int 169 linux32_sys_getpriority(struct lwp *l, const struct linux32_sys_getpriority_args *uap, register_t *retval) 170 { 171 /* { 172 syscallarg(int) which; 173 syscallarg(int) who; 174 } */ 175 struct sys_getpriority_args bsa; 176 int error; 177 178 SCARG(&bsa, which) = SCARG(uap, which); 179 SCARG(&bsa, who) = SCARG(uap, who); 180 181 if ((error = sys_getpriority(l, &bsa, retval))) 182 return error; 183 184 *retval = NZERO - *retval; 185 186 return 0; 187 } 188
Indexes created Sat Sep 20 22:09:52 GMT 2025