1 /*
2 // Copyright (c) 2018 Intel 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 "channel_layer.hpp"
18 
19 #include "channel_mgmt.hpp"
20 #include "cipher_mgmt.hpp"
21 
22 #include <phosphor-logging/log.hpp>
23 
24 namespace ipmi
25 {
26 
27 bool doesDeviceExist(const uint8_t chNum)
28 {
29     // TODO: This is not the reliable way to find the device
30     // associated with ethernet interface as the channel number to
31     // eth association is not done. Need to revisit later
32     struct stat fileStat = {0};
33     std::string devName("/sys/class/net/" + getChannelName(chNum));
34 
35     if (stat(devName.data(), &fileStat) != 0)
36     {
37         phosphor::logging::log<phosphor::logging::level::DEBUG>(
38             "Ethernet device not found");
39         return false;
40     }
41 
42     return true;
43 }
44 
45 bool isValidPrivLimit(const uint8_t privLimit)
46 {
47     // Callback privilege is deprecated in OpenBMC
48     return ((privLimit > PRIVILEGE_CALLBACK) && (privLimit <= PRIVILEGE_OEM));
49 }
50 
51 bool isValidAccessMode(const uint8_t accessMode)
52 {
53     return (
54         (accessMode >= static_cast<uint8_t>(EChannelAccessMode::disabled)) &&
55         (accessMode <= static_cast<uint8_t>(EChannelAccessMode::shared)));
56 }
57 
58 bool isValidChannel(const uint8_t chNum)
59 {
60     return getChannelConfigObject().isValidChannel(chNum);
61 }
62 
63 bool isValidAuthType(const uint8_t chNum, const EAuthType& authType)
64 {
65     return getChannelConfigObject().isValidAuthType(chNum, authType);
66 }
67 
68 EChannelSessSupported getChannelSessionSupport(const uint8_t chNum)
69 {
70     return getChannelConfigObject().getChannelSessionSupport(chNum);
71 }
72 
73 int getChannelActiveSessions(const uint8_t chNum)
74 {
75     return getChannelConfigObject().getChannelActiveSessions(chNum);
76 }
77 
78 size_t getChannelMaxTransferSize(uint8_t chNum)
79 {
80     return getChannelConfigObject().getChannelMaxTransferSize(chNum);
81 }
82 
83 Cc ipmiChannelInit()
84 {
85     getChannelConfigObject();
86     getCipherConfigObject(csPrivFileName, csPrivDefaultFileName);
87     return ccSuccess;
88 }
89 
90 Cc getChannelInfo(const uint8_t chNum, ChannelInfo& chInfo)
91 {
92     return getChannelConfigObject().getChannelInfo(chNum, chInfo);
93 }
94 
95 Cc getChannelAccessData(const uint8_t chNum, ChannelAccess& chAccessData)
96 {
97     return getChannelConfigObject().getChannelAccessData(chNum, chAccessData);
98 }
99 
100 Cc setChannelAccessData(const uint8_t chNum, const ChannelAccess& chAccessData,
101                         const uint8_t setFlag)
102 {
103     return getChannelConfigObject().setChannelAccessData(chNum, chAccessData,
104                                                          setFlag);
105 }
106 
107 Cc getChannelAccessPersistData(const uint8_t chNum, ChannelAccess& chAccessData)
108 {
109     return getChannelConfigObject().getChannelAccessPersistData(chNum,
110                                                                 chAccessData);
111 }
112 
113 Cc setChannelAccessPersistData(const uint8_t chNum,
114                                const ChannelAccess& chAccessData,
115                                const uint8_t setFlag)
116 {
117     return getChannelConfigObject().setChannelAccessPersistData(
118         chNum, chAccessData, setFlag);
119 }
120 
121 Cc getChannelAuthTypeSupported(const uint8_t chNum, uint8_t& authTypeSupported)
122 {
123     return getChannelConfigObject().getChannelAuthTypeSupported(
124         chNum, authTypeSupported);
125 }
126 
127 Cc getChannelEnabledAuthType(const uint8_t chNum, const uint8_t priv,
128                              EAuthType& authType)
129 {
130     return getChannelConfigObject().getChannelEnabledAuthType(chNum, priv,
131                                                               authType);
132 }
133 
134 std::string getChannelName(const uint8_t chNum)
135 {
136     return getChannelConfigObject().getChannelName(chNum);
137 }
138 
139 uint8_t getChannelByName(const std::string& chName)
140 {
141     return getChannelConfigObject().getChannelByName(chName);
142 }
143 
144 bool isValidPayloadType(const PayloadType payloadType)
145 {
146     return (
147         payloadType == PayloadType::IPMI || payloadType == PayloadType::SOL ||
148         payloadType == PayloadType::OPEN_SESSION_REQUEST ||
149         payloadType == PayloadType::OPEN_SESSION_RESPONSE ||
150         payloadType == PayloadType::RAKP1 ||
151         payloadType == PayloadType::RAKP2 ||
152         payloadType == PayloadType::RAKP3 || payloadType == PayloadType::RAKP4);
153 }
154 } // namespace ipmi
155