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 NULL,
98 sn1_brand_int91_callback,
99 sn1_brand_syscall_callback,
100 sn1_brand_syscall32_callback,
101 NULL
102 };
103
104 #else /* ! __amd64 */
105
106 struct brand_mach_ops sn1_mops = {
107 sn1_brand_sysenter_callback,
108 NULL,
109 NULL,
110 sn1_brand_syscall_callback,
111 NULL,
112 NULL
113 };
114 #endif /* __amd64 */
115
116 #endif /* _sparc */
117
118 struct brand sn1_brand = {
119 BRAND_VER_1,
120 "sn1",
121 &sn1_brops,
122 &sn1_mops
123 };
124
125 static struct modlbrand modlbrand = {
126 &mod_brandops, /* type of module */
127 "Solaris N-1 Brand", /* description of module */
128 &sn1_brand /* driver ops */
129 };
130
131 static struct modlinkage modlinkage = {
132 MODREV_1, (void *)&modlbrand, NULL
133 };
134
135 void
136 sn1_setbrand(proc_t *p)
137 {
138 brand_solaris_setbrand(p, &sn1_brand);
139 }
140
141 /* ARGSUSED */
142 int
143 sn1_getattr(zone_t *zone, int attr, void *buf, size_t *bufsize)
144 {
145 return (EINVAL);
146 }
147
148 /* ARGSUSED */
149 int
150 sn1_setattr(zone_t *zone, int attr, void *buf, size_t bufsize)
151 {
152 return (EINVAL);
153 }
154
155 /*ARGSUSED*/
156 int
157 sn1_brandsys(int cmd, int64_t *rval, uintptr_t arg1, uintptr_t arg2,
158 uintptr_t arg3, uintptr_t arg4, uintptr_t arg5, uintptr_t arg6)
159 {
160 int res;
161
162 *rval = 0;
163
164 res = brand_solaris_cmd(cmd, arg1, arg2, arg3, &sn1_brand, SN1_VERSION);
165 if (res >= 0)
166 return (res);
167
168 return (EINVAL);
169 }
170
171 void
172 sn1_copy_procdata(proc_t *child, proc_t *parent)
173 {
174 brand_solaris_copy_procdata(child, parent, &sn1_brand);
175 }
176
177 void
178 sn1_proc_exit(struct proc *p, klwp_t *l)
179 {
180 brand_solaris_proc_exit(p, l, &sn1_brand);
181 }
182
183 void
184 sn1_exec()
185 {
186 brand_solaris_exec(&sn1_brand);
187 }
188
189 int
190 sn1_initlwp(klwp_t *l)
191 {
192 return (brand_solaris_initlwp(l, &sn1_brand));
193 }
194
195 void
196 sn1_forklwp(klwp_t *p, klwp_t *c)
197 {
198 brand_solaris_forklwp(p, c, &sn1_brand);
199 }
200
201 void
202 sn1_freelwp(klwp_t *l)
203 {
204 brand_solaris_freelwp(l, &sn1_brand);
205 }
206
207 void
208 sn1_lwpexit(klwp_t *l)
209 {
210 brand_solaris_lwpexit(l, &sn1_brand);
211 }
212
213 /*ARGSUSED*/
214 void
215 sn1_free_brand_data(zone_t *zone)
216 {
217 }
218
219 /*ARGSUSED*/
220 void
221 sn1_init_brand_data(zone_t *zone)
222 {
223 }
224
225 int
226 sn1_elfexec(vnode_t *vp, execa_t *uap, uarg_t *args, intpdata_t *idatap,
227 int level, long *execsz, int setid, caddr_t exec_file, cred_t *cred,
228 int brand_action)
229 {
230 return (brand_solaris_elfexec(vp, uap, args, idatap, level, execsz,
231 setid, exec_file, cred, brand_action, &sn1_brand, SN1_BRANDNAME,
232 SN1_LIB, SN1_LIB32, SN1_LINKER, SN1_LINKER32));
233 }
234
235 int
236 _init(void)
237 {
238 int err;
239
240 /*
241 * Set up the table indicating which system calls we want to
242 * interpose on. We should probably build this automatically from
243 * a list of system calls that is shared with the user-space
244 * library.
245 */
246 sn1_emulation_table = kmem_zalloc(NSYSCALL, KM_SLEEP);
247 sn1_emulation_table[SYS_read] = 1; /* 3 */
248 sn1_emulation_table[SYS_write] = 1; /* 4 */
249 sn1_emulation_table[SYS_time] = 1; /* 13 */
250 sn1_emulation_table[SYS_getpid] = 1; /* 20 */
251 sn1_emulation_table[SYS_mount] = 1; /* 21 */
252 sn1_emulation_table[SYS_getuid] = 1; /* 24 */
253 sn1_emulation_table[SYS_times] = 1; /* 43 */
254 sn1_emulation_table[SYS_getgid] = 1; /* 47 */
255 sn1_emulation_table[SYS_utssys] = 1; /* 57 */
256 sn1_emulation_table[SYS_waitid] = 1; /* 107 */
257 sn1_emulation_table[SYS_uname] = 1; /* 135 */
258
259 err = mod_install(&modlinkage);
260 if (err) {
261 cmn_err(CE_WARN, "Couldn't install brand module");
262 kmem_free(sn1_emulation_table, NSYSCALL);
263 }
264
265 return (err);
266 }
267
268 int
269 _info(struct modinfo *modinfop)
270 {
271 return (mod_info(&modlinkage, modinfop));
272 }
273
274 int
275 _fini(void)
276 {
277 return (brand_solaris_fini(&sn1_emulation_table, &modlinkage,
278 &sn1_brand));
279 }