sn1_brand.c revision 12613:4c5722bc28dc
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 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25#include <sys/errno.h> 26#include <sys/exec.h> 27#include <sys/kmem.h> 28#include <sys/modctl.h> 29#include <sys/model.h> 30#include <sys/proc.h> 31#include <sys/syscall.h> 32#include <sys/systm.h> 33#include <sys/thread.h> 34#include <sys/cmn_err.h> 35#include <sys/archsystm.h> 36#include <sys/pathname.h> 37 38#include <sys/machbrand.h> 39#include <sys/brand.h> 40#include "sn1_brand.h" 41 42char *sn1_emulation_table = NULL; 43 44void sn1_init_brand_data(zone_t *); 45void sn1_free_brand_data(zone_t *); 46void sn1_setbrand(proc_t *); 47int sn1_getattr(zone_t *, int, void *, size_t *); 48int sn1_setattr(zone_t *, int, void *, size_t); 49int sn1_brandsys(int, int64_t *, uintptr_t, uintptr_t, uintptr_t, 50 uintptr_t, uintptr_t, uintptr_t); 51void sn1_copy_procdata(proc_t *, proc_t *); 52void sn1_proc_exit(struct proc *, klwp_t *); 53void sn1_exec(); 54int sn1_initlwp(klwp_t *); 55void sn1_forklwp(klwp_t *, klwp_t *); 56void sn1_freelwp(klwp_t *); 57void sn1_lwpexit(klwp_t *); 58int sn1_elfexec(vnode_t *, execa_t *, uarg_t *, intpdata_t *, int, 59 long *, int, caddr_t, cred_t *, int); 60 61/* sn1 brand */ 62struct brand_ops sn1_brops = { 63 sn1_init_brand_data, 64 sn1_free_brand_data, 65 sn1_brandsys, 66 sn1_setbrand, 67 sn1_getattr, 68 sn1_setattr, 69 sn1_copy_procdata, 70 sn1_proc_exit, 71 sn1_exec, 72 lwp_setrval, 73 sn1_initlwp, 74 sn1_forklwp, 75 sn1_freelwp, 76 sn1_lwpexit, 77 sn1_elfexec, 78 NULL, 79 NULL, 80 NSIG, 81}; 82 83#ifdef sparc 84 85struct brand_mach_ops sn1_mops = { 86 sn1_brand_syscall_callback, 87 sn1_brand_syscall32_callback 88}; 89 90#else /* sparc */ 91 92#ifdef __amd64 93 94struct brand_mach_ops sn1_mops = { 95 sn1_brand_sysenter_callback, 96 sn1_brand_int91_callback, 97 sn1_brand_syscall_callback, 98 sn1_brand_syscall32_callback 99}; 100 101#else /* ! __amd64 */ 102 103struct brand_mach_ops sn1_mops = { 104 sn1_brand_sysenter_callback, 105 NULL, 106 sn1_brand_syscall_callback, 107 NULL 108}; 109#endif /* __amd64 */ 110 111#endif /* _sparc */ 112 113struct brand sn1_brand = { 114 BRAND_VER_1, 115 "sn1", 116 &sn1_brops, 117 &sn1_mops 118}; 119 120static struct modlbrand modlbrand = { 121 &mod_brandops, /* type of module */ 122 "Solaris N-1 Brand", /* description of module */ 123 &sn1_brand /* driver ops */ 124}; 125 126static struct modlinkage modlinkage = { 127 MODREV_1, (void *)&modlbrand, NULL 128}; 129 130void 131sn1_setbrand(proc_t *p) 132{ 133 brand_solaris_setbrand(p, &sn1_brand); 134} 135 136/* ARGSUSED */ 137int 138sn1_getattr(zone_t *zone, int attr, void *buf, size_t *bufsize) 139{ 140 return (EINVAL); 141} 142 143/* ARGSUSED */ 144int 145sn1_setattr(zone_t *zone, int attr, void *buf, size_t bufsize) 146{ 147 return (EINVAL); 148} 149 150/*ARGSUSED*/ 151int 152sn1_brandsys(int cmd, int64_t *rval, uintptr_t arg1, uintptr_t arg2, 153 uintptr_t arg3, uintptr_t arg4, uintptr_t arg5, uintptr_t arg6) 154{ 155 int res; 156 157 *rval = 0; 158 159 res = brand_solaris_cmd(cmd, arg1, arg2, arg3, &sn1_brand, SN1_VERSION); 160 if (res >= 0) 161 return (res); 162 163 return (EINVAL); 164} 165 166void 167sn1_copy_procdata(proc_t *child, proc_t *parent) 168{ 169 brand_solaris_copy_procdata(child, parent, &sn1_brand); 170} 171 172void 173sn1_proc_exit(struct proc *p, klwp_t *l) 174{ 175 brand_solaris_proc_exit(p, l, &sn1_brand); 176} 177 178void 179sn1_exec() 180{ 181 brand_solaris_exec(&sn1_brand); 182} 183 184int 185sn1_initlwp(klwp_t *l) 186{ 187 return (brand_solaris_initlwp(l, &sn1_brand)); 188} 189 190void 191sn1_forklwp(klwp_t *p, klwp_t *c) 192{ 193 brand_solaris_forklwp(p, c, &sn1_brand); 194} 195 196void 197sn1_freelwp(klwp_t *l) 198{ 199 brand_solaris_freelwp(l, &sn1_brand); 200} 201 202void 203sn1_lwpexit(klwp_t *l) 204{ 205 brand_solaris_lwpexit(l, &sn1_brand); 206} 207 208/*ARGSUSED*/ 209void 210sn1_free_brand_data(zone_t *zone) 211{ 212} 213 214/*ARGSUSED*/ 215void 216sn1_init_brand_data(zone_t *zone) 217{ 218} 219 220int 221sn1_elfexec(vnode_t *vp, execa_t *uap, uarg_t *args, intpdata_t *idatap, 222 int level, long *execsz, int setid, caddr_t exec_file, cred_t *cred, 223 int brand_action) 224{ 225 return (brand_solaris_elfexec(vp, uap, args, idatap, level, execsz, 226 setid, exec_file, cred, brand_action, &sn1_brand, SN1_BRANDNAME, 227 SN1_LIB, SN1_LIB32, SN1_LINKER, SN1_LINKER32)); 228} 229 230int 231_init(void) 232{ 233 int err; 234 235 /* 236 * Set up the table indicating which system calls we want to 237 * interpose on. We should probably build this automatically from 238 * a list of system calls that is shared with the user-space 239 * library. 240 */ 241 sn1_emulation_table = kmem_zalloc(NSYSCALL, KM_SLEEP); 242 sn1_emulation_table[SYS_read] = 1; /* 3 */ 243 sn1_emulation_table[SYS_write] = 1; /* 4 */ 244 sn1_emulation_table[SYS_time] = 1; /* 13 */ 245 sn1_emulation_table[SYS_getpid] = 1; /* 20 */ 246 sn1_emulation_table[SYS_mount] = 1; /* 21 */ 247 sn1_emulation_table[SYS_getuid] = 1; /* 24 */ 248 sn1_emulation_table[SYS_times] = 1; /* 43 */ 249 sn1_emulation_table[SYS_getgid] = 1; /* 47 */ 250 sn1_emulation_table[SYS_utssys] = 1; /* 57 */ 251 sn1_emulation_table[SYS_readlink] = 1; /* 90 */ 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 264int 265_info(struct modinfo *modinfop) 266{ 267 return (mod_info(&modlinkage, modinfop)); 268} 269 270int 271_fini(void) 272{ 273 return (brand_solaris_fini(&sn1_emulation_table, &modlinkage, 274 &sn1_brand)); 275} 276