1 #ifndef __HOST_IPMID_IPMI_COMMON_H__
2 #define __HOST_IPMID_IPMI_COMMON_H__
3 
4 #include <systemd/sd-bus.h>
5 
6 #include <cstddef>
7 
8 /*
9  * Specifies the minimum privilege level required to execute the command
10  * This means the command can be executed at a given privilege level or higher
11  * privilege level. Those commands which can be executed via system interface
12  * only should use SYSTEM_INTERFACE
13  */
14 enum CommandPrivilege
15 {
16     PRIVILEGE_CALLBACK = 0x01,
17     PRIVILEGE_USER,
18     PRIVILEGE_OPERATOR,
19     PRIVILEGE_ADMIN,
20     PRIVILEGE_OEM,
21     SYSTEM_INTERFACE = 0xFF,
22 };
23 
24 // length of Completion Code and its ALWAYS _1_
25 #define IPMI_CC_LEN 1
26 
27 // IPMI Net Function number as specified by IPMI V2.0 spec.
28 // Example :
29 // NETFUN_APP      =   (0x06 << 2),
30 typedef unsigned char ipmi_netfn_t;
31 
32 // IPMI Command for a Net Function number as specified by IPMI V2.0 spec.
33 typedef unsigned char ipmi_cmd_t;
34 
35 // Buffer containing data from sender of netfn and command as part of request
36 typedef void* ipmi_request_t;
37 
38 // This is the response buffer that the provider of [netfn,cmd] will send back
39 // to the caller. Provider will allocate the memory inside the handler and then
40 // will do a memcpy to this response buffer and also will set the data size
41 // parameter to the size of the buffer.
42 // EXAMPLE :
43 // unsigned char str[] = {0x00, 0x01, 0xFE, 0xFF, 0x0A, 0x01};
44 // *data_len = 6;
45 // memcpy(response, &str, *data_len);
46 typedef void* ipmi_response_t;
47 
48 // This buffer contains any *user specific* data that is of interest only to the
49 // plugin. For a ipmi function router, this data is opaque. At the time of
50 // registering the plugin handlers, plugin may optionally allocate a memory and
51 // fill in whatever needed that will be of help during the actual handling of
52 // command. IPMID will just pass the netfn, cmd and also this data to plugins
53 // during the command handler invocation.
54 typedef void* ipmi_context_t;
55 
56 // Length of request / response buffer depending on whether the data is a
57 // request or a response from a plugin handler.
58 typedef std::size_t* ipmi_data_len_t;
59 
60 // Plugin function return the status code
61 typedef unsigned char ipmi_ret_t;
62 
63 typedef enum CommandPrivilege ipmi_cmd_privilege_t;
64 
65 // This is the callback handler that the plugin registers with IPMID. IPMI
66 // function router will then make a call to this callback handler with the
67 // necessary arguments of netfn, cmd, request, response, size and context.
68 typedef ipmi_ret_t (*ipmid_callback_t)(ipmi_netfn_t, ipmi_cmd_t, ipmi_request_t,
69                                        ipmi_response_t, ipmi_data_len_t,
70                                        ipmi_context_t);
71 
72 // This is the constructor function that is called into by each plugin handlers.
73 // When ipmi sets up the callback handlers, a call is made to this with
74 // information of netfn, cmd, callback handler pointer and context data.
75 void ipmi_register_callback(ipmi_netfn_t, ipmi_cmd_t, ipmi_context_t,
76                             ipmid_callback_t, ipmi_cmd_privilege_t);
77 
78 unsigned short reserveSel(void);
79 bool checkSELReservation(unsigned short id);
80 void cancelSELReservation(void);
81 
82 // These are the command network functions, the response
83 // network functions are the function + 1. So to determine
84 // the proper network function which issued the command
85 // associated with a response, subtract 1.
86 // Note: these are also shifted left to make room for the LUN.
87 enum ipmi_net_fns
88 {
89     NETFUN_CHASSIS = 0x00,
90     NETFUN_BRIDGE = 0x02,
91     NETFUN_SENSOR = 0x04,
92     NETFUN_APP = 0x06,
93     NETFUN_FIRMWARE = 0x08,
94     NETFUN_STORAGE = 0x0a,
95     NETFUN_TRANSPORT = 0x0c,
96     NETFUN_GRPEXT = 0x2c,
97     NETFUN_OEM_GROUP = 0x2e,
98     NETFUN_NONE = 0x30,
99     NETFUN_OEM = 0x32,
100     NETFUN_IBM_OEM = 0x3A
101 };
102 
103 // IPMI commands for net functions. Since this is to be used both by the ipmi
104 // function router and also the callback handler registration function, its put
105 // in this .H file.
106 enum ipmi_netfn_wild_card_cmd
107 {
108     IPMI_CMD_WILDCARD = 0xFF,
109 };
110 
111 // Return (completion) codes from a IPMI operation as needed by IPMI V2.0 spec.
112 enum ipmi_return_codes
113 {
114     IPMI_CC_OK = 0x00,
115     IPMI_DCMI_CC_NO_ACTIVE_POWER_LIMIT = 0x80,
116     IPMI_WDOG_CC_NOT_INIT = 0x80,
117     IPMI_CC_SYSTEM_INFO_PARAMETER_NOT_SUPPORTED = 0x80,
118     IPMI_CC_SYSTEM_INFO_PARAMETER_SET_READ_ONLY = 0x82,
119     IPMI_CC_BUSY = 0xC0,
120     IPMI_CC_INVALID = 0xC1,
121     IPMI_CC_TIMEOUT = 0xC3,
122     IPMI_CC_OUT_OF_SPACE = 0xC4,
123     IPMI_CC_INVALID_RESERVATION_ID = 0xC5,
124     IPMI_CC_REQ_DATA_TRUNCATED = 0xC6,
125     IPMI_CC_REQ_DATA_LEN_INVALID = 0xC7,
126     IPMI_CC_PARM_OUT_OF_RANGE = 0xC9,
127     IPMI_CC_REQUESTED_TOO_MANY_BYTES = 0xCA,
128     IPMI_CC_SENSOR_INVALID = 0xCB,
129     IPMI_CC_INVALID_FIELD_REQUEST = 0xCC,
130     IPMI_CC_ILLEGAL_COMMAND = 0xCD,
131     IPMI_CC_RESPONSE_ERROR = 0xCE,
132     IPMI_CC_INSUFFICIENT_PRIVILEGE = 0xD4,
133     IPMI_CC_UNSPECIFIED_ERROR = 0xFF,
134 };
135 
136 // Temp solution: To detect the request source channel.
137 // There is no stright forward way to get the exact
138 // channel so we are hardcoding it to KCS in case host-ipmid
139 // and LAN1 for netipmid.
140 // we can't differentiate between LAN1 & LAN2 for netipmid in this logic.
141 // As our current design will not be able to support the same. This is done
142 // so that in all the places where ever we need to use the self channel can be
143 // be implemented properly and based on new architecture.this can be updated.
144 typedef enum
145 {
146     interfaceKCS = 0,
147     interfaceLAN1 = 1,
148     interfaceUnknown = 0xFF
149 } EInterfaceIndex;
150 
151 EInterfaceIndex getInterfaceIndex(void);
152 
153 sd_bus* ipmid_get_sd_bus_connection(void);
154 sd_event* ipmid_get_sd_event_connection(void);
155 sd_bus_slot* ipmid_get_sd_bus_slot(void);
156 
157 // move this from ipmid.hpp, which is now gone
158 // this should not be used. Use the channel API to get the channel size
159 #define MAX_IPMI_BUFFER 64
160 
161 #endif
162