xref: /openbmc/openpower-hw-diags/util/dbus.hpp (revision 54e71c06)
1 #pragma once
2 
3 #include <sdbusplus/bus.hpp>
4 #include <util/ffdc_file.hpp>
5 
6 #include <string>
7 #include <variant>
8 #include <vector>
9 
10 namespace util
11 {
12 namespace dbus
13 {
14 using DBusValue = std::variant<std::string, bool, std::vector<uint8_t>,
15                                std::vector<std::string>, int32_t>;
16 using DBusProperty = std::string;
17 using DBusInterface = std::string;
18 using DBusService = std::string;
19 using DBusPath = std::string;
20 using DBusInterfaceList = std::vector<DBusInterface>;
21 using DBusSubTree =
22     std::map<DBusPath, std::map<DBusService, DBusInterfaceList>>;
23 
24 /**
25  * Find the dbus object path and service that implements the given interface
26  *
27  * @param[in]   i_interface Interface to search for
28  * @param[out]  o_path      Path of dbus object implementing the interface
29  * @param[out]  o_service   Service implementing the dbus object path
30  * @return      non-zero on error
31  */
32 int find(const std::string& i_interface, std::string& o_path,
33          std::string& o_service);
34 
35 /**
36  * Find the dbus service that implements the given dbus object and interface
37  *
38  * @param[in]   i_interface Interface that maps to the service
39  * @param[in]   i_path      Path that maps to the service
40  * @param[out]  o_service   Service implementing the dbus object and interface
41  * @return      non-zer on error
42  */
43 int findService(const std::string& i_interface, const std::string& i_path,
44                 std::string& o_service);
45 
46 /**
47  * Read a property from a dbus object interface
48  *
49  * @param[in]   i_interface Interface implementing the property
50  * @param[in]   i_path      Path of the dbus object
51  * @param[in]   i_service   Service implementing the dbus object and interface
52  * @param[in]   i_property  Property to read
53  * @return      non-zero on error
54  */
55 int getProperty(const std::string& i_interface, const std::string& i_path,
56                 const std::string& i_service, const std::string& i_property,
57                 DBusValue& o_response);
58 
59 /**
60  * Get the IBM compatible names defined for this system
61  *
62  * @return     A vector of strings containing the system names
63  */
64 std::vector<std::string> systemNames();
65 
66 /** @brief Host transition states for host transition operations */
67 enum class HostState
68 {
69     Quiesce,
70     Diagnostic,
71     Crash
72 };
73 
74 /**
75  * @brief Transition the host state
76  *
77  * We will transition the host state by starting the appropriate dbus target.
78  *
79  * @param i_hostState the state to transition the host to
80  */
81 void transitionHost(const HostState i_hostState);
82 
83 /**
84  * @brief Read autoRebootEnabled property
85  *
86  * @return false if autoRebootEnabled policy false, else true
87  */
88 bool autoRebootEnabled();
89 
90 /** @brief Host running states for host running operations */
91 enum class HostRunningState
92 {
93     Unknown,
94     NotStarted,
95     Started,
96     Stopping
97 };
98 
99 /**
100  * Get the host running state
101  *
102  * Use host boot progress to determine if a host has been started. If host
103  * boot progress can not be determined then host state will be unknown.
104  *
105  * @return HostType == "Unknown", "Started or "NotStarted"
106  */
107 HostRunningState hostRunningState();
108 
109 /**
110  * @brief Read dumpPolicyEnabled property
111  *
112  * @return false if dumpPolicyEnabled property is false, else true
113  */
114 bool dumpPolicyEnabled();
115 
116 /**
117  * Create a PEL
118  *
119  * The additional data provided in the map will be placed in a user data
120  * section of the PEL and may additionally contain key words to trigger
121  * certain behaviors by the backend logging code. Each set of data described
122  * in the vector of ffdc data will be placed in additional user data
123  * sections. Note that the PID of the caller will be added to the additional
124  * data map with key "_PID".
125  *
126  * @param  i_message - the event type
127  * @param  i_severity - the severity level
128  * @param  io_additional - map of additional data
129  * @param  i_ffdc - vector of ffdc data
130  * @return Platform log id or 0 if error
131  */
132 uint32_t createPel(const std::string& i_message, const std::string& i_severity,
133                    std::map<std::string, std::string>& io_additional,
134                    const std::vector<FFDCTuple>& i_ffdc);
135 
136 /** @brief Machine ID definitions */
137 enum class MachineType
138 {
139     Rainier_2S4U,
140     Rainier_2S2U,
141     Rainier_1S4U,
142     Rainier_1S2U,
143     Everest,
144     Bonnell,
145 };
146 
147 /**
148  * @brief Read the System IM keyword to get the machine type
149  *
150  * @return An enum representing the machine type
151  */
152 MachineType getMachineType();
153 
154 /** @brief Get list of state sensor PDRs
155  *
156  *  @param[out] pdrList - list of PDRs
157  *  @param[in] stateSetId - ID of the state set of interest
158  *
159  *  @return true if successful otherwise false
160  */
161 bool getStateSensorPdrs(std::vector<std::vector<uint8_t>>& pdrList,
162                         uint16_t stateSetId);
163 
164 /** @brief Get list of state effecter PDRs
165  *
166  *  @param[out] pdrList -  list of PDRs
167  *  @param[in] stateSetId - ID of the state set of interest
168  *
169  *  @return true if successful otherwise false
170  */
171 bool getStateEffecterPdrs(std::vector<std::vector<uint8_t>>& pdrList,
172                           uint16_t stateSetId);
173 
174 /**
175  * @brief Get MCTP instance ID associated with endpoint
176  *
177  * @param[out] mctpInstance - instance of MCTP
178  * @param[in] Eid - MCTP enpoint ID
179  *
180  * @return True on success otherwise False
181  */
182 bool getMctpInstance(uint8_t& mctpInstance, uint8_t Eid);
183 
184 /**
185  * @brief Determine if power fault was detected
186  *
187  * @return true if power fault or unknown, false otherwise
188  */
189 bool powerFault();
190 
191 } // namespace dbus
192 } // namespace util
193