xref: /openbmc/phosphor-net-ipmid/command/channel_auth.cpp (revision 41ff9b51e4bf4bb501c669527d45293acf0645fc)
1 #include "channel_auth.hpp"
2 
3 #include <ipmid/api.h>
4 
5 #include <user_channel/channel_layer.hpp>
6 #include <user_channel/user_layer.hpp>
7 
8 namespace command
9 {
10 
11 std::vector<uint8_t>
12     GetChannelCapabilities(const std::vector<uint8_t>& inPayload,
13                            std::shared_ptr<message::Handler>& handler)
14 {
15     auto request =
16         reinterpret_cast<const GetChannelCapabilitiesReq*>(inPayload.data());
17     if (inPayload.size() != sizeof(*request))
18     {
19         std::vector<uint8_t> errorPayload{IPMI_CC_REQ_DATA_LEN_INVALID};
20         return errorPayload;
21     }
22     constexpr unsigned int channelMask = 0x0f;
23     uint8_t chNum = ipmi::convertCurrentChannelNum(
24         request->channelNumber & channelMask, getInterfaceIndex());
25 
26     if (!ipmi::isValidChannel(chNum) ||
27         (ipmi::EChannelSessSupported::none ==
28          ipmi::getChannelSessionSupport(chNum)) ||
29         !ipmi::isValidPrivLimit(request->reqMaxPrivLevel))
30     {
31         std::vector<uint8_t> errorPayload{IPMI_CC_INVALID_FIELD_REQUEST};
32         return errorPayload;
33     }
34 
35     std::vector<uint8_t> outPayload(sizeof(GetChannelCapabilitiesResp));
36     auto response =
37         reinterpret_cast<GetChannelCapabilitiesResp*>(outPayload.data());
38 
39     // A canned response, since there is no user and channel management.
40     response->completionCode = IPMI_CC_OK;
41 
42     response->channelNumber = chNum;
43 
44     response->ipmiVersion = 1; // IPMI v2.0 extended capabilities available.
45     response->reserved1 = 0;
46     response->oem = 0;
47     response->straightKey = 0;
48     response->reserved2 = 0;
49     response->md5 = 0;
50     response->md2 = 0;
51 
52     response->reserved3 = 0;
53     response->KGStatus = 0;       // KG is set to default
54     response->perMessageAuth = 0; // Per-message Authentication is enabled
55     response->userAuth = 0;       // User Level Authentication is enabled
56     uint8_t maxChUsers = 0;
57     uint8_t enabledUsers = 0;
58     uint8_t fixedUsers = 0;
59     ipmi::ipmiUserGetAllCounts(maxChUsers, enabledUsers, fixedUsers);
60 
61     response->nonNullUsers = enabledUsers > 0 ? 1 : 0; // Non-null usernames
62     response->nullUsers = 0;      // Null usernames disabled
63     response->anonymousLogin = 0; // Anonymous Login disabled
64 
65     response->reserved4 = 0;
66     response->extCapabilities = 0x2; // Channel supports IPMI v2.0 connections
67 
68     response->oemID[0] = 0;
69     response->oemID[1] = 0;
70     response->oemID[2] = 0;
71     response->oemAuxillary = 0;
72     return outPayload;
73 }
74 
75 } // namespace command
76