1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 #include <sys/errno.h> 27 #include <sys/exec.h> 28 #include <sys/kmem.h> 29 #include <sys/modctl.h> 30 #include <sys/model.h> 31 #include <sys/proc.h> 32 #include <sys/syscall.h> 33 #include <sys/systm.h> 34 #include <sys/thread.h> 35 #include <sys/cmn_err.h> 36 #include <sys/archsystm.h> 37 #include <sys/pathname.h> 38 39 #include <sys/machbrand.h> 40 #include <sys/brand.h> 41 #include "sn1_brand.h" 42 43 char *sn1_emulation_table = NULL; 44 45 void sn1_init_brand_data(zone_t *); 46 void sn1_free_brand_data(zone_t *); 47 void sn1_setbrand(proc_t *); 48 int sn1_getattr(zone_t *, int, void *, size_t *); 49 int sn1_setattr(zone_t *, int, void *, size_t); 50 int sn1_brandsys(int, int64_t *, uintptr_t, uintptr_t, uintptr_t, 51 uintptr_t, uintptr_t, uintptr_t); 52 void sn1_copy_procdata(proc_t *, proc_t *); 53 void sn1_proc_exit(struct proc *, klwp_t *); 54 void sn1_exec(); 55 int sn1_initlwp(klwp_t *); 56 void sn1_forklwp(klwp_t *, klwp_t *); 57 void sn1_freelwp(klwp_t *); 58 void sn1_lwpexit(klwp_t *); 59 int sn1_elfexec(vnode_t *, execa_t *, uarg_t *, intpdata_t *, int, 60 long *, int, caddr_t, cred_t *, int); 61 62 /* sn1 brand */ 63 struct brand_ops sn1_brops = { 64 sn1_init_brand_data, 65 sn1_free_brand_data, 66 sn1_brandsys, 67 sn1_setbrand, 68 sn1_getattr, 69 sn1_setattr, 70 sn1_copy_procdata, 71 sn1_proc_exit, 72 sn1_exec, 73 lwp_setrval, 74 sn1_initlwp, 75 sn1_forklwp, 76 sn1_freelwp, 77 sn1_lwpexit, 78 sn1_elfexec, 79 NULL, 80 NULL, 81 NSIG, 82 }; 83 84 #ifdef sparc 85 86 struct brand_mach_ops sn1_mops = { 87 sn1_brand_syscall_callback, 88 sn1_brand_syscall32_callback 89 }; 90 91 #else /* sparc */ 92 93 #ifdef __amd64 94 95 struct brand_mach_ops sn1_mops = { 96 sn1_brand_sysenter_callback, 97 sn1_brand_int91_callback, 98 sn1_brand_syscall_callback, 99 sn1_brand_syscall32_callback 100 }; 101 102 #else /* ! __amd64 */ 103 104 struct brand_mach_ops sn1_mops = { 105 sn1_brand_sysenter_callback, 106 NULL, 107 sn1_brand_syscall_callback, 108 NULL 109 }; 110 #endif /* __amd64 */ 111 112 #endif /* _sparc */ 113 114 struct brand sn1_brand = { 115 BRAND_VER_1, 116 "sn1", 117 &sn1_brops, 118 &sn1_mops 119 }; 120 121 static struct modlbrand modlbrand = { 122 &mod_brandops, /* type of module */ 123 "Solaris N-1 Brand", /* description of module */ 124 &sn1_brand /* driver ops */ 125 }; 126 127 static struct modlinkage modlinkage = { 128 MODREV_1, (void *)&modlbrand, NULL 129 }; 130 131 void 132 sn1_setbrand(proc_t *p) 133 { 134 brand_solaris_setbrand(p, &sn1_brand); 135 } 136 137 /* ARGSUSED */ 138 int 139 sn1_getattr(zone_t *zone, int attr, void *buf, size_t *bufsize) 140 { 141 return (EINVAL); 142 } 143 144 /* ARGSUSED */ 145 int 146 sn1_setattr(zone_t *zone, int attr, void *buf, size_t bufsize) 147 { 148 return (EINVAL); 149 } 150 151 /*ARGSUSED*/ 152 int 153 sn1_brandsys(int cmd, int64_t *rval, uintptr_t arg1, uintptr_t arg2, 154 uintptr_t arg3, uintptr_t arg4, uintptr_t arg5, uintptr_t arg6) 155 { 156 int res; 157 158 *rval = 0; 159 160 res = brand_solaris_cmd(cmd, arg1, arg2, arg3, &sn1_brand, SN1_VERSION); 161 if (res >= 0) 162 return (res); 163 164 return (EINVAL); 165 } 166 167 void 168 sn1_copy_procdata(proc_t *child, proc_t *parent) 169 { 170 brand_solaris_copy_procdata(child, parent, &sn1_brand); 171 } 172 173 void 174 sn1_proc_exit(struct proc *p, klwp_t *l) 175 { 176 brand_solaris_proc_exit(p, l, &sn1_brand); 177 } 178 179 void 180 sn1_exec() 181 { 182 brand_solaris_exec(&sn1_brand); 183 } 184 185 int 186 sn1_initlwp(klwp_t *l) 187 { 188 return (brand_solaris_initlwp(l, &sn1_brand)); 189 } 190 191 void 192 sn1_forklwp(klwp_t *p, klwp_t *c) 193 { 194 brand_solaris_forklwp(p, c, &sn1_brand); 195 } 196 197 void 198 sn1_freelwp(klwp_t *l) 199 { 200 brand_solaris_freelwp(l, &sn1_brand); 201 } 202 203 void 204 sn1_lwpexit(klwp_t *l) 205 { 206 brand_solaris_lwpexit(l, &sn1_brand); 207 } 208 209 /*ARGSUSED*/ 210 void 211 sn1_free_brand_data(zone_t *zone) 212 { 213 } 214 215 /*ARGSUSED*/ 216 void 217 sn1_init_brand_data(zone_t *zone) 218 { 219 } 220 221 int 222 sn1_elfexec(vnode_t *vp, execa_t *uap, uarg_t *args, intpdata_t *idatap, 223 int level, long *execsz, int setid, caddr_t exec_file, cred_t *cred, 224 int brand_action) 225 { 226 return (brand_solaris_elfexec(vp, uap, args, idatap, level, execsz, 227 setid, exec_file, cred, brand_action, &sn1_brand, SN1_BRANDNAME, 228 SN1_LIB, SN1_LIB32, SN1_LINKER, SN1_LINKER32)); 229 } 230 231 int 232 _init(void) 233 { 234 int err; 235 236 /* 237 * Set up the table indicating which system calls we want to 238 * interpose on. We should probably build this automatically from 239 * a list of system calls that is shared with the user-space 240 * library. 241 */ 242 sn1_emulation_table = kmem_zalloc(NSYSCALL, KM_SLEEP); 243 sn1_emulation_table[SYS_read] = 1; /* 3 */ 244 sn1_emulation_table[SYS_write] = 1; /* 4 */ 245 sn1_emulation_table[SYS_time] = 1; /* 13 */ 246 sn1_emulation_table[SYS_getpid] = 1; /* 20 */ 247 sn1_emulation_table[SYS_mount] = 1; /* 21 */ 248 sn1_emulation_table[SYS_getuid] = 1; /* 24 */ 249 sn1_emulation_table[SYS_times] = 1; /* 43 */ 250 sn1_emulation_table[SYS_getgid] = 1; /* 47 */ 251 sn1_emulation_table[SYS_utssys] = 1; /* 57 */ 252 sn1_emulation_table[SYS_waitid] = 1; /* 107 */ 253 sn1_emulation_table[SYS_uname] = 1; /* 135 */ 254 255 err = mod_install(&modlinkage); 256 if (err) { 257 cmn_err(CE_WARN, "Couldn't install brand module"); 258 kmem_free(sn1_emulation_table, NSYSCALL); 259 } 260 261 return (err); 262 } 263 264 int 265 _info(struct modinfo *modinfop) 266 { 267 return (mod_info(&modlinkage, modinfop)); 268 } 269 270 int 271 _fini(void) 272 { 273 return (brand_solaris_fini(&sn1_emulation_table, &modlinkage, 274 &sn1_brand)); 275 } 276