1 /**
2 * Copyright © 2017 IBM Corporation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 #include "config.h"
17
18 #include "functor.hpp"
19
20 #include "manager.hpp"
21
22 #include <phosphor-logging/lg2.hpp>
23 #include <sdbusplus/bus.hpp>
24
25 namespace phosphor
26 {
27 namespace inventory
28 {
29 namespace manager
30 {
31 namespace functor
32 {
operator ()(sdbusplus::bus_t & bus,sdbusplus::message_t &,Manager & mgr) const33 bool PropertyConditionBase::operator()(sdbusplus::bus_t& bus,
34 sdbusplus::message_t&,
35 Manager& mgr) const
36 {
37 std::string path(_path);
38 return (*this)(path, bus, mgr);
39 }
40
operator ()(const std::string & path,sdbusplus::bus_t & bus,Manager & mgr) const41 bool PropertyConditionBase::operator()(const std::string& path,
42 sdbusplus::bus_t& bus,
43 Manager& mgr) const
44 {
45 std::string host;
46
47 if (_service)
48 {
49 host.assign(_service);
50 }
51 else
52 {
53 auto mapperCall = bus.new_method_call(
54 "xyz.openbmc_project.ObjectMapper",
55 "/xyz/openbmc_project/object_mapper",
56 "xyz.openbmc_project.ObjectMapper", "GetObject");
57 mapperCall.append(path);
58 mapperCall.append(std::vector<std::string>({_iface}));
59
60 std::map<std::string, std::vector<std::string>> mapperResponse;
61 try
62 {
63 auto mapperResponseMsg = bus.call(mapperCall);
64 mapperResponseMsg.read(mapperResponse);
65 }
66 catch (const std::exception& e)
67 {
68 lg2::error("Failed to execute GetObject method: {ERROR}", "ERROR",
69 e);
70 return false;
71 }
72
73 if (mapperResponse.empty())
74 {
75 return false;
76 }
77
78 host = mapperResponse.begin()->first;
79 }
80
81 // When the host service name is inventory manager, eval using
82 // a given `getProperty` function to retrieve a property value from
83 // an interface hosted by inventory manager.
84 if (host == BUSNAME)
85 {
86 try
87 {
88 return eval(mgr);
89 }
90 catch (const std::exception& e)
91 {
92 // Unable to find property on inventory manager,
93 // default condition to false.
94 return false;
95 }
96 }
97
98 auto hostCall = bus.new_method_call(
99 host.c_str(), path.c_str(), "org.freedesktop.DBus.Properties", "Get");
100 hostCall.append(_iface);
101 hostCall.append(_property);
102
103 try
104 {
105 auto hostResponseMsg = bus.call(hostCall);
106 return eval(hostResponseMsg);
107 }
108 catch (const std::exception& e)
109 {
110 lg2::error("Failed to execute Get method: {ERROR}", "ERROR", e);
111 return false;
112 }
113 }
114
115 } // namespace functor
116 } // namespace manager
117 } // namespace inventory
118 } // namespace phosphor
119
120 // vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
121