1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
/* Proc server host management calls
Copyright (C) 1992, 1993, 1994 Free Software Foundation
This file is part of the GNU Hurd.
The GNU Hurd is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The GNU Hurd is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU Hurd; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Written by Michael I. Bushnell. */
#include <mach.h>
#include <sys/types.h>
#include <hurd/hurd_types.h>
#include <stdlib.h>
#include <errno.h>
#include <mach/notify.h>
#include <string.h>
#include <hurd/exec.h>
#include "proc.h"
#include "proc_S.h"
static long hostid;
static char *hostname;
static int hostnamelen;
static mach_port_t *std_port_array;
static int *std_int_array;
static int n_std_ports, n_std_ints;
struct execdata_notify
{
mach_port_t notify_port;
struct execdata_notify *next;
} *execdata_notifys;
/* Implement proc_sethostid as described in <hurd/proc.defs>. */
error_t
S_proc_sethostid (struct proc *p,
int newhostid)
{
if (! check_uid (p, 0))
return EPERM;
hostid = newhostid;
return 0;
}
/* Implement proc_gethostid as described in <hurd/proc.defs>. */
error_t
S_proc_gethostid (struct proc *p,
int *outhostid)
{
*outhostid = hostid;
return 0;
}
/* Implement proc_sethostname as described in <hurd/proc.defs>. */
error_t
S_proc_sethostname (struct proc *p,
char *newhostname,
u_int newhostnamelen)
{
if (! check_uid (p, 0))
return EPERM;
if (hostname)
free (hostname);
hostname = malloc (newhostnamelen + 1);
hostnamelen = newhostnamelen;
bcopy (newhostname, hostname, newhostnamelen);
hostname[newhostnamelen] = '\0';
return 0;
}
/* Implement proc_gethostname as described in <hurd/proc.defs>. */
error_t
S_proc_gethostname (struct proc *p,
char **outhostname,
u_int *outhostnamelen)
{
if (*outhostnamelen > hostnamelen + 1)
vm_allocate (mach_task_self (), (vm_address_t *)outhostname,
hostnamelen, 1);
*outhostnamelen = hostnamelen + 1;
bcopy (hostname, *outhostname, hostnamelen + 1);
return 0;
}
/* Implement proc_getprivports as described in <hurd/proc.defs>. */
error_t
S_proc_getprivports (struct proc *p,
mach_port_t *hostpriv,
mach_port_t *devpriv)
{
if (! check_uid (p, 0))
return EPERM;
*hostpriv = master_host_port;
*devpriv = master_device_port;
return 0;
}
/* Implement proc_setexecdata as described in <hurd/proc.defs>. */
error_t
S_proc_setexecdata (struct proc *p,
mach_port_t *ports,
u_int nports,
int *ints,
u_int nints)
{
int i;
struct execdata_notify *n;
if (!check_uid (p, 0))
return EPERM;
if (std_port_array)
{
for (i = 0; i < n_std_ports; i++)
mach_port_deallocate (mach_task_self (), std_port_array[i]);
free (std_port_array);
}
if (std_int_array)
free (std_int_array);
std_port_array = malloc (sizeof (mach_port_t) * nports);
n_std_ports = nports;
bcopy (ports, std_port_array, sizeof (mach_port_t) * nports);
std_int_array = malloc (sizeof (int) * nints);
n_std_ints = nints;
bcopy (ints, std_int_array, sizeof (int) * nints);
for (n = execdata_notifys; n; n = n->next)
exec_setexecdata (n->notify_port, std_port_array, MACH_MSG_TYPE_COPY_SEND,
n_std_ports, std_int_array, n_std_ints);
return 0;
}
/* Implement proc_getexecdata as described in <hurd/proc.defs>. */
error_t
S_proc_getexecdata (struct proc *p,
mach_port_t **ports,
mach_msg_type_name_t *portspoly,
u_int *nports,
int **ints,
u_int *nints)
{
/* XXX memory leak here */
if (*nports < n_std_ports)
*ports = malloc (n_std_ports * sizeof (mach_port_t));
bcopy (std_port_array, *ports, n_std_ports * sizeof (mach_port_t));
*nports = n_std_ports;
if (*nints < n_std_ints)
*ints = malloc (n_std_ints * sizeof (mach_port_t));
bcopy (std_int_array, *ints, n_std_ints * sizeof (int));
*nints = n_std_ints;
return 0;
}
/* Implement proc_execdata_notify as described in <hurd/proc.defs>. */
error_t
S_proc_execdata_notify (struct proc *p,
mach_port_t notify)
{
struct execdata_notify *n = malloc (sizeof (struct execdata_notify));
mach_port_t foo;
n->notify_port = notify;
n->next = execdata_notifys;
execdata_notifys = n;
mach_port_request_notification (mach_task_self (), notify,
MACH_NOTIFY_DEAD_NAME, 1,
generic_port, MACH_MSG_TYPE_MAKE_SEND_ONCE,
&foo);
if (foo)
mach_port_deallocate (mach_task_self (), foo);
exec_setexecdata (n->notify_port, std_port_array, MACH_MSG_TYPE_COPY_SEND,
n_std_ports, std_int_array, n_std_ints);
return 0;
}
|
