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
|
/******************************************************************************
* xc_acm.c
*
* Copyright (C) 2005, 2006 IBM Corporation, R Sailer
*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* This program 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, version 2 of the
* License.
*/
#include "xc_private.h"
int xc_acm_op(xc_interface *xch, int cmd, void *arg, unsigned long arg_size)
{
int ret;
DECLARE_HYPERCALL;
struct xen_acmctl acmctl;
switch (cmd) {
case ACMOP_setpolicy: {
struct acm_setpolicy *setpolicy = (struct acm_setpolicy *)arg;
memcpy(&acmctl.u.setpolicy,
setpolicy,
sizeof(struct acm_setpolicy));
}
break;
case ACMOP_getpolicy: {
struct acm_getpolicy *getpolicy = (struct acm_getpolicy *)arg;
memcpy(&acmctl.u.getpolicy,
getpolicy,
sizeof(struct acm_getpolicy));
}
break;
case ACMOP_dumpstats: {
struct acm_dumpstats *dumpstats = (struct acm_dumpstats *)arg;
memcpy(&acmctl.u.dumpstats,
dumpstats,
sizeof(struct acm_dumpstats));
}
break;
case ACMOP_getssid: {
struct acm_getssid *getssid = (struct acm_getssid *)arg;
memcpy(&acmctl.u.getssid,
getssid,
sizeof(struct acm_getssid));
}
break;
case ACMOP_getdecision: {
struct acm_getdecision *getdecision = (struct acm_getdecision *)arg;
memcpy(&acmctl.u.getdecision,
getdecision,
sizeof(struct acm_getdecision));
}
break;
case ACMOP_chgpolicy: {
struct acm_change_policy *change_policy = (struct acm_change_policy *)arg;
memcpy(&acmctl.u.change_policy,
change_policy,
sizeof(struct acm_change_policy));
}
break;
case ACMOP_relabeldoms: {
struct acm_relabel_doms *relabel_doms = (struct acm_relabel_doms *)arg;
memcpy(&acmctl.u.relabel_doms,
relabel_doms,
sizeof(struct acm_relabel_doms));
}
break;
}
acmctl.cmd = cmd;
acmctl.interface_version = ACM_INTERFACE_VERSION;
hypercall.op = __HYPERVISOR_xsm_op;
hypercall.arg[0] = (unsigned long)&acmctl;
if ( lock_pages(&acmctl, sizeof(acmctl)) != 0)
{
PERROR("Could not lock memory for Xen hypercall");
return -EFAULT;
}
if ( (ret = do_xen_hypercall(xch, &hypercall)) < 0)
{
if ( errno == EACCES )
DPRINTF("acmctl operation failed -- need to"
" rebuild the user-space tool set?\n");
}
unlock_pages(&acmctl, sizeof(acmctl));
switch (cmd) {
case ACMOP_getdecision: {
struct acm_getdecision *getdecision = (struct acm_getdecision *)arg;
memcpy(getdecision,
&acmctl.u.getdecision,
sizeof(struct acm_getdecision));
break;
}
}
return ret;
}
/*
* Local variables:
* mode: C
* c-set-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
|
