1/* -*- Mode: C; tab-width: 4 -*-
2 *
3 * Copyright (c) 2013 Apple Computer, Inc. All rights reserved.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *     http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18#include "mDNSMacOSX.h"
19#include <network/config.h>
20
21#if TARGET_OS_IPHONE
22
23mDNSexport void CUPInit(mDNS *const m)
24{
25
26    m->p->handle = cellular_usage_policy_create_client();
27    if (!m->p->handle)
28    {
29        LogMsg("CUPInit: cellular_usage_policy_create_client failed");
30    }
31}
32
33mDNSexport mDNSBool mDNSPlatformAllowPID(mDNS *const m, DNSQuestion *q)
34{
35    // Currently the policy applies only for DNS requests sent over cellular interface
36    if (m->p->handle && q->qDNSServer && q->qDNSServer->cellIntf)
37    {
38        mDNSBool allowed;
39        if (q->pid)
40        {
41            allowed = (mDNSBool) cellular_usage_policy_is_data_allowed_for_pid(m->p->handle, q->pid);
42            if (!allowed)
43            {
44                xpc_object_t pidx = xpc_uint64_create(q->pid);
45                if (pidx)
46                {
47                    network_config_cellular_blocked_notify(pidx, NULL, NULL);
48                    LogInfo("mDNSPlaformAllowPID: Notified PID(%d) for %##s (%s)", q->pid, q->qname.c, DNSTypeName(q->qtype));
49                    xpc_release(pidx);
50                }
51            }
52        }
53        else
54        {
55            allowed = (mDNSBool) cellular_usage_policy_is_data_allowed_for_uuid(m->p->handle, q->uuid);
56            if (!allowed)
57            {
58                xpc_object_t uuidx = xpc_uuid_create(q->uuid);
59                if (uuidx)
60                {
61                    network_config_cellular_blocked_notify(NULL, uuidx, NULL);
62                    LogInfo("mDNSPlaformAllowPID: Notified UUID for %##s (%s)", q->qname.c, DNSTypeName(q->qtype));
63                    xpc_release(uuidx);
64                }
65            }
66        }
67        return allowed;
68    }
69    else
70    {
71        return mDNStrue;
72    }
73}
74
75#else // TARGET_OS_IPHONE
76
77mDNSexport void CUPInit(mDNS *const m)
78{
79    (void)m; //unused
80}
81
82mDNSexport mDNSBool mDNSPlatformAllowPID(mDNS *const m, DNSQuestion *q)
83{
84    (void)m;    //unused
85    (void)q;    //unused
86    //LogMsg("mDNSPlatformAllowPID: %##s (%s)", q->qname.c, DNSTypeName(q->qtype));
87    return mDNStrue;
88}
89
90#endif // TARGET_OS_IPHONE
91
92