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()(
34 sdbusplus::bus_t& bus, sdbusplus::message_t&, Manager& mgr) const
35 {
36 std::string path(_path);
37 return (*this)(path, bus, mgr);
38 }
39
operator ()(const std::string & path,sdbusplus::bus_t & bus,Manager & mgr) const40 bool PropertyConditionBase::operator()(
41 const std::string& path, sdbusplus::bus_t& bus, Manager& mgr) const
42 {
43 std::string host;
44
45 if (_service)
46 {
47 host.assign(_service);
48 }
49 else
50 {
51 auto mapperCall = bus.new_method_call(
52 "xyz.openbmc_project.ObjectMapper",
53 "/xyz/openbmc_project/object_mapper",
54 "xyz.openbmc_project.ObjectMapper", "GetObject");
55 mapperCall.append(path);
56 mapperCall.append(std::vector<std::string>({_iface}));
57
58 std::map<std::string, std::vector<std::string>> mapperResponse;
59 try
60 {
61 auto mapperResponseMsg = bus.call(mapperCall);
62 mapperResponseMsg.read(mapperResponse);
63 }
64 catch (const std::exception& e)
65 {
66 lg2::error("Failed to execute GetObject method: {ERROR}", "ERROR",
67 e);
68 return false;
69 }
70
71 if (mapperResponse.empty())
72 {
73 return false;
74 }
75
76 host = mapperResponse.begin()->first;
77 }
78
79 // When the host service name is inventory manager, eval using
80 // a given `getProperty` function to retrieve a property value from
81 // an interface hosted by inventory manager.
82 if (host == BUSNAME)
83 {
84 try
85 {
86 return eval(mgr);
87 }
88 catch (const std::exception& e)
89 {
90 // Unable to find property on inventory manager,
91 // default condition to false.
92 return false;
93 }
94 }
95
96 auto hostCall = bus.new_method_call(
97 host.c_str(), path.c_str(), "org.freedesktop.DBus.Properties", "Get");
98 hostCall.append(_iface);
99 hostCall.append(_property);
100
101 try
102 {
103 auto hostResponseMsg = bus.call(hostCall);
104 return eval(hostResponseMsg);
105 }
106 catch (const std::exception& e)
107 {
108 lg2::error("Failed to execute Get method: {ERROR}", "ERROR", e);
109 return false;
110 }
111 }
112
113 } // namespace functor
114 } // namespace manager
115 } // namespace inventory
116 } // namespace phosphor
117
118 // vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4
119