xref: /openbmc/pldm/pldmtool/pldm_cmd_helper.hpp (revision 4d99c311)
1 #pragma once
2 
3 #include "common/instance_id.hpp"
4 #include "common/utils.hpp"
5 
6 #include <err.h>
7 #include <libpldm/base.h>
8 #include <libpldm/bios.h>
9 #include <libpldm/fru.h>
10 #include <libpldm/platform.h>
11 #include <sys/socket.h>
12 #include <sys/un.h>
13 #include <unistd.h>
14 
15 #include <CLI/CLI.hpp>
16 #include <nlohmann/json.hpp>
17 
18 #include <cstring>
19 #include <iomanip>
20 #include <iostream>
21 #include <utility>
22 
23 namespace pldmtool
24 {
25 
26 namespace helper
27 {
28 
29 constexpr uint8_t PLDM_ENTITY_ID = 8;
30 using ordered_json = nlohmann::ordered_json;
31 
32 /** @brief print the input message if pldmverbose is enabled
33  *
34  *  @param[in]  pldmVerbose - verbosity flag - true/false
35  *  @param[in]  msg         - message to print
36  *  @param[in]  data        - data to print
37  *
38  *  @return - None
39  */
40 
41 template <class T>
42 void Logger(bool pldmverbose, const char* msg, const T& data)
43 {
44     if (pldmverbose)
45     {
46         std::stringstream s;
47         s << data;
48         std::cout << msg << s.str() << std::endl;
49     }
50 }
51 
52 /** @brief Display in JSON format.
53  *
54  *  @param[in]  data - data to print in json
55  *
56  *  @return - None
57  */
58 static inline void DisplayInJson(const ordered_json& data)
59 {
60     std::cout << data.dump(4) << std::endl;
61 }
62 
63 /** @brief MCTP socket read/recieve
64  *
65  *  @param[in]  requestMsg - Request message to compare against loopback
66  *              message recieved from mctp socket
67  *  @param[out] responseMsg - Response buffer recieved from mctp socket
68  *  @param[in]  pldmVerbose - verbosity flag - true/false
69  *
70  *  @return -   0 on success.
71  *             -1 or -errno on failure.
72  */
73 int mctpSockSendRecv(const std::vector<uint8_t>& requestMsg,
74                      std::vector<uint8_t>& responseMsg, bool pldmVerbose);
75 
76 class CommandInterface
77 {
78   public:
79     explicit CommandInterface(const char* type, const char* name,
80                               CLI::App* app) :
81         pldmType(type),
82         commandName(name), mctp_eid(PLDM_ENTITY_ID), pldmVerbose(false),
83         instanceId(0)
84     {
85         app->add_option("-m,--mctp_eid", mctp_eid, "MCTP endpoint ID");
86         app->add_flag("-v, --verbose", pldmVerbose);
87         app->add_option("-n, --retry-count", numRetries,
88                         "Number of retry when PLDM request message is failed");
89         app->callback([&]() { exec(); });
90     }
91 
92     virtual ~CommandInterface() = default;
93 
94     virtual std::pair<int, std::vector<uint8_t>> createRequestMsg() = 0;
95 
96     virtual void parseResponseMsg(struct pldm_msg* responsePtr,
97                                   size_t payloadLength) = 0;
98 
99     virtual void exec();
100 
101     int pldmSendRecv(std::vector<uint8_t>& requestMsg,
102                      std::vector<uint8_t>& responseMsg);
103 
104     /**
105      * @brief get MCTP endpoint ID
106      *
107      * @return uint8_t - MCTP endpoint ID
108      */
109     inline uint8_t getMCTPEID()
110     {
111         return mctp_eid;
112     }
113 
114     /**
115      * @brief get PLDM type
116      *
117      * @return pldm type
118      */
119     inline std::string getPLDMType()
120     {
121         return pldmType;
122     }
123 
124     /**
125      * @brief get command name
126      *
127      * @return  the command name
128      */
129     inline std::string getCommandName()
130     {
131         return commandName;
132     }
133 
134   private:
135     const std::string pldmType;
136     const std::string commandName;
137     uint8_t mctp_eid;
138     bool pldmVerbose;
139 
140   protected:
141     uint8_t instanceId;
142     pldm::InstanceIdDb instanceIdDb;
143     uint8_t numRetries = 0;
144 };
145 
146 } // namespace helper
147 } // namespace pldmtool
148