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 
17 #include "util.hpp"
18 
19 #include <algorithm>
20 #include <map>
21 #include <string>
22 
23 using namespace std::literals::string_literals;
24 
25 template <typename T>
26 struct BusMeetsMSL
27 {
28     std::string path;
29 
BusMeetsMSLBusMeetsMSL30     explicit BusMeetsMSL(const std::string& p) : path(p) {}
31 
operator ()BusMeetsMSL32     auto operator()(const T& arg)
33     {
34         // Query each service hosting
35         // xyz.openbmc_project.Inventory.Decorator.MeetsMinimumShipLevel.
36 
37         const auto& busName = arg.first;
38         return util::sdbusplus::getProperty<bool>(
39             busName, path,
40             "xyz.openbmc_project.Inventory."
41             "Decorator.MeetsMinimumShipLevel"s,
42             "MeetsMinimumShipLevel"s);
43     }
44 };
45 
46 template <typename T>
47 struct PathMeetsMSL
48 {
operator ()PathMeetsMSL49     auto operator()(const T& arg)
50     {
51         // A given path in the mapper response is composed of
52         // a map of services/interfaces.  Validate each service
53         // that hosts the MSL interface meets the MSL.
54 
55         const auto& path = arg.first;
56         return std::all_of(
57             arg.second.begin(), arg.second.end(),
58             BusMeetsMSL<typename decltype(arg.second)::value_type>(path));
59     }
60 };
61 
main(void)62 int main(void)
63 {
64     auto mslVerificationRequired = util::sdbusplus::getProperty<bool>(
65         "/xyz/openbmc_project/control/minimum_ship_level_required"s,
66         "xyz.openbmc_project.Control.MinimumShipLevel"s,
67         "MinimumShipLevelRequired"s);
68 
69     if (!mslVerificationRequired)
70     {
71         return 0;
72     }
73 
74     // Obtain references to all objects hosting
75     // xyz.openbmc_project.Inventory.Decorator.MeetsMinimumShipLevel
76     // with a mapper subtree query.  For each object, validate that
77     // the minimum ship level has been met.
78 
79     using SubTreeType =
80         std::map<std::string, std::map<std::string, std::vector<std::string>>>;
81 
82     auto subtree = util::sdbusplus::callMethodAndRead<SubTreeType>(
83         "xyz.openbmc_project.ObjectMapper"s,
84         "/xyz/openbmc_project/object_mapper"s,
85         "xyz.openbmc_project.ObjectMapper"s, "GetSubTree"s, "/"s, 0,
86         std::vector<std::string>{"xyz.openbmc_project.Inventory"
87                                  ".Decorator.MeetsMinimumShipLevel"s});
88 
89     auto result = std::all_of(subtree.begin(), subtree.end(),
90                               PathMeetsMSL<SubTreeType::value_type>());
91 
92     if (!result)
93     {
94         lg2::info(
95             "The physical system configuration does not satisfy the minimum ship level.");
96 
97         return 1;
98     }
99 
100     return 0;
101 }
102