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 }