netbsd32_module.c revision 1.2.2.4
1 1.2.2.4 skrll /* $NetBSD: netbsd32_module.c,v 1.2.2.4 2017/08/28 17:51:59 skrll Exp $ */ 2 1.2.2.2 skrll 3 1.2.2.2 skrll /*- 4 1.2.2.2 skrll * Copyright (c) 2008 The NetBSD Foundation, Inc. 5 1.2.2.2 skrll * All rights reserved. 6 1.2.2.2 skrll * 7 1.2.2.2 skrll * This code is derived from software developed for The NetBSD Foundation. 8 1.2.2.2 skrll * 9 1.2.2.2 skrll * Redistribution and use in source and binary forms, with or without 10 1.2.2.2 skrll * modification, are permitted provided that the following conditions 11 1.2.2.2 skrll * are met: 12 1.2.2.2 skrll * 1. Redistributions of source code must retain the above copyright 13 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer. 14 1.2.2.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 15 1.2.2.2 skrll * notice, this list of conditions and the following disclaimer in the 16 1.2.2.2 skrll * documentation and/or other materials provided with the distribution. 17 1.2.2.2 skrll * 18 1.2.2.2 skrll * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 1.2.2.2 skrll * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 1.2.2.2 skrll * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 1.2.2.2 skrll * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 1.2.2.2 skrll * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 1.2.2.2 skrll * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 1.2.2.2 skrll * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 1.2.2.2 skrll * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 1.2.2.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 1.2.2.2 skrll * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 1.2.2.2 skrll * POSSIBILITY OF SUCH DAMAGE. 29 1.2.2.2 skrll */ 30 1.2.2.2 skrll 31 1.2.2.2 skrll #include <sys/cdefs.h> 32 1.2.2.4 skrll __KERNEL_RCSID(0, "$NetBSD: netbsd32_module.c,v 1.2.2.4 2017/08/28 17:51:59 skrll Exp $"); 33 1.2.2.2 skrll 34 1.2.2.2 skrll #include <sys/param.h> 35 1.2.2.2 skrll #include <sys/dirent.h> 36 1.2.2.2 skrll #include <sys/kauth.h> 37 1.2.2.2 skrll #include <sys/module.h> 38 1.2.2.2 skrll #include <sys/kobj.h> 39 1.2.2.2 skrll 40 1.2.2.2 skrll #include <compat/netbsd32/netbsd32.h> 41 1.2.2.2 skrll #include <compat/netbsd32/netbsd32_syscall.h> 42 1.2.2.2 skrll #include <compat/netbsd32/netbsd32_syscallargs.h> 43 1.2.2.2 skrll #include <compat/netbsd32/netbsd32_conv.h> 44 1.2.2.2 skrll 45 1.2.2.3 skrll static int 46 1.2.2.3 skrll modctl32_handle_stat(struct netbsd32_iovec *iov, void *arg) 47 1.2.2.3 skrll { 48 1.2.2.3 skrll modstat_t *ms, *mso; 49 1.2.2.3 skrll modinfo_t *mi; 50 1.2.2.3 skrll module_t *mod; 51 1.2.2.3 skrll vaddr_t addr; 52 1.2.2.3 skrll size_t size; 53 1.2.2.3 skrll size_t mslen; 54 1.2.2.3 skrll int error; 55 1.2.2.3 skrll 56 1.2.2.3 skrll kernconfig_lock(); 57 1.2.2.3 skrll mslen = (module_count+module_builtinlist+1) * sizeof(modstat_t); 58 1.2.2.3 skrll mso = kmem_zalloc(mslen, KM_SLEEP); 59 1.2.2.3 skrll ms = mso; 60 1.2.2.3 skrll TAILQ_FOREACH(mod, &module_list, mod_chain) { 61 1.2.2.3 skrll mi = mod->mod_info; 62 1.2.2.3 skrll strlcpy(ms->ms_name, mi->mi_name, sizeof(ms->ms_name)); 63 1.2.2.3 skrll if (mi->mi_required != NULL) { 64 1.2.2.3 skrll strlcpy(ms->ms_required, mi->mi_required, 65 1.2.2.3 skrll sizeof(ms->ms_required)); 66 1.2.2.3 skrll } 67 1.2.2.3 skrll if (mod->mod_kobj != NULL) { 68 1.2.2.3 skrll kobj_stat(mod->mod_kobj, &addr, &size); 69 1.2.2.3 skrll ms->ms_addr = addr; 70 1.2.2.3 skrll ms->ms_size = size; 71 1.2.2.3 skrll } 72 1.2.2.3 skrll ms->ms_class = mi->mi_class; 73 1.2.2.3 skrll ms->ms_refcnt = mod->mod_refcnt; 74 1.2.2.3 skrll ms->ms_source = mod->mod_source; 75 1.2.2.3 skrll ms->ms_flags = mod->mod_flags; 76 1.2.2.3 skrll ms++; 77 1.2.2.3 skrll } 78 1.2.2.3 skrll TAILQ_FOREACH(mod, &module_builtins, mod_chain) { 79 1.2.2.3 skrll mi = mod->mod_info; 80 1.2.2.3 skrll strlcpy(ms->ms_name, mi->mi_name, sizeof(ms->ms_name)); 81 1.2.2.3 skrll if (mi->mi_required != NULL) { 82 1.2.2.3 skrll strlcpy(ms->ms_required, mi->mi_required, 83 1.2.2.3 skrll sizeof(ms->ms_required)); 84 1.2.2.3 skrll } 85 1.2.2.3 skrll if (mod->mod_kobj != NULL) { 86 1.2.2.3 skrll kobj_stat(mod->mod_kobj, &addr, &size); 87 1.2.2.3 skrll ms->ms_addr = addr; 88 1.2.2.3 skrll ms->ms_size = size; 89 1.2.2.3 skrll } 90 1.2.2.3 skrll ms->ms_class = mi->mi_class; 91 1.2.2.3 skrll ms->ms_refcnt = -1; 92 1.2.2.3 skrll KASSERT(mod->mod_source == MODULE_SOURCE_KERNEL); 93 1.2.2.3 skrll ms->ms_source = mod->mod_source; 94 1.2.2.3 skrll ms++; 95 1.2.2.3 skrll } 96 1.2.2.3 skrll kernconfig_unlock(); 97 1.2.2.3 skrll error = copyout(mso, NETBSD32PTR64(iov->iov_base), 98 1.2.2.3 skrll min(mslen - sizeof(modstat_t), iov->iov_len)); 99 1.2.2.3 skrll kmem_free(mso, mslen); 100 1.2.2.3 skrll if (error == 0) { 101 1.2.2.3 skrll iov->iov_len = mslen - sizeof(modstat_t); 102 1.2.2.3 skrll error = copyout(iov, arg, sizeof(*iov)); 103 1.2.2.3 skrll } 104 1.2.2.3 skrll 105 1.2.2.3 skrll return error; 106 1.2.2.3 skrll } 107 1.2.2.3 skrll 108 1.2.2.2 skrll int 109 1.2.2.2 skrll netbsd32_modctl(struct lwp *lwp, const struct netbsd32_modctl_args *uap, 110 1.2.2.2 skrll register_t *result) 111 1.2.2.2 skrll { 112 1.2.2.2 skrll /* { 113 1.2.2.2 skrll syscallarg(int) cmd; 114 1.2.2.2 skrll syscallarg(netbsd32_voidp) arg; 115 1.2.2.2 skrll } */ 116 1.2.2.2 skrll char buf[MAXMODNAME]; 117 1.2.2.2 skrll struct netbsd32_iovec iov; 118 1.2.2.2 skrll struct netbsd32_modctl_load ml; 119 1.2.2.2 skrll int error; 120 1.2.2.2 skrll void *arg; 121 1.2.2.2 skrll #ifdef MODULAR 122 1.2.2.2 skrll uintptr_t loadtype; 123 1.2.2.2 skrll #endif 124 1.2.2.2 skrll 125 1.2.2.2 skrll arg = SCARG_P32(uap, arg); 126 1.2.2.2 skrll 127 1.2.2.2 skrll switch (SCARG(uap, cmd)) { 128 1.2.2.2 skrll case MODCTL_LOAD: 129 1.2.2.2 skrll error = copyin(arg, &ml, sizeof(ml)); 130 1.2.2.2 skrll if (error != 0) 131 1.2.2.2 skrll break; 132 1.2.2.2 skrll error = handle_modctl_load(NETBSD32PTR64(ml.ml_filename), 133 1.2.2.2 skrll ml.ml_flags, NETBSD32PTR64(ml.ml_props), ml.ml_propslen); 134 1.2.2.2 skrll break; 135 1.2.2.2 skrll 136 1.2.2.2 skrll case MODCTL_UNLOAD: 137 1.2.2.2 skrll error = copyinstr(arg, buf, sizeof(buf), NULL); 138 1.2.2.2 skrll if (error == 0) { 139 1.2.2.2 skrll error = module_unload(buf); 140 1.2.2.2 skrll } 141 1.2.2.2 skrll break; 142 1.2.2.2 skrll 143 1.2.2.2 skrll case MODCTL_STAT: 144 1.2.2.2 skrll error = copyin(arg, &iov, sizeof(iov)); 145 1.2.2.2 skrll if (error != 0) { 146 1.2.2.2 skrll break; 147 1.2.2.2 skrll } 148 1.2.2.3 skrll error = modctl32_handle_stat(&iov, arg); 149 1.2.2.2 skrll break; 150 1.2.2.2 skrll 151 1.2.2.2 skrll case MODCTL_EXISTS: 152 1.2.2.2 skrll #ifndef MODULAR 153 1.2.2.2 skrll error = ENOSYS; 154 1.2.2.2 skrll #else 155 1.2.2.2 skrll loadtype = (uintptr_t)arg; 156 1.2.2.2 skrll switch (loadtype) { /* 0 = modload, 1 = autoload */ 157 1.2.2.2 skrll case 0: /* FALLTHROUGH */ 158 1.2.2.2 skrll case 1: 159 1.2.2.2 skrll error = kauth_authorize_system(kauth_cred_get(), 160 1.2.2.2 skrll KAUTH_SYSTEM_MODULE, 0, 161 1.2.2.2 skrll (void *)(uintptr_t)MODCTL_LOAD, 162 1.2.2.2 skrll (void *)loadtype, NULL); 163 1.2.2.2 skrll break; 164 1.2.2.2 skrll 165 1.2.2.2 skrll default: 166 1.2.2.2 skrll error = EINVAL; 167 1.2.2.2 skrll break; 168 1.2.2.2 skrll } 169 1.2.2.2 skrll #endif 170 1.2.2.2 skrll break; 171 1.2.2.2 skrll 172 1.2.2.2 skrll default: 173 1.2.2.2 skrll error = EINVAL; 174 1.2.2.2 skrll break; 175 1.2.2.2 skrll } 176 1.2.2.2 skrll 177 1.2.2.2 skrll return error; 178 1.2.2.2 skrll } 179
Indexes created Wed Sep 24 02:09:48 GMT 2025