1 files changed, 144 insertions, 0 deletions
diff --git a/host-services.c b/host-services.c
new file mode 100644
index 0000000..b0b12ae
--- /dev/null
+++ b/host-services.c
@@ -0,0 +1,144 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <systemd/sd-bus.h>
+#include <mapper.h>
+#include "host-ipmid/ipmid-api.h"
+
+void register_host_services() __attribute__((constructor));
+
+// OpenBMC Host IPMI dbus framework
+const char  *object_name   =  "/org/openbmc/HostIpmi/1";
+const char  *intf_name     =  "org.openbmc.HostIpmi";
+
+//-------------------------------------------------------------------
+// Gets called by PowerOff handler when a Soft Power off is requested
+//-------------------------------------------------------------------
+static int soft_power_off(sd_bus_message *m, void *userdata, sd_bus_error *ret_error)
+{
+    int64_t bt_resp = -1;
+    int rc = 0;
+    char *bus_name = NULL;
+
+    // Steps to be taken when we get this.
+    //  1: Send a SMS_ATN to the Host
+    //  2: Host receives it and sends a GetMsgFlags IPMI command
+    //  3: IPMID app handler will respond to that with a MSgFlag with bit:0x2
+    //     set indicating we have a message for Host
+    //  4: Host sends a GetMsgBuffer command and app handler will respond to
+    //     that with a OEM-SEL with certain fields packed indicating to the
+    //     host that it do a shutdown of the partitions.
+    //  5: Host does the partition shutdown and calls Chassis Power off command
+    //  6: App handler handles the command by making a call to ChassisManager
+    //     Dbus
+
+    // Now the job is to send the SMS_ATTN.
+
+    // Req message contains the specifics about which method etc that we want to
+    // access on which bus, object
+    sd_bus_message *response = NULL;
+
+    // Error return mechanism
+    sd_bus_error bus_error = SD_BUS_ERROR_NULL;
+
+    // Gets a hook onto either a SYSTEM or SESSION bus
+    sd_bus *bus = ipmid_get_sd_bus_connection();
+    rc = mapper_get_service(bus, object_name, &bus_name);
+    if (rc < 0) {
+        fprintf(stderr, "Failed to get %s bus name: %s\n",
+                object_name, strerror(-rc));
+        goto finish;
+    }
+    rc = sd_bus_call_method(bus,             // In the System Bus
+                            bus_name,        // Service to contact
+                            object_name,     // Object path
+                            intf_name,       // Interface name
+                            "setAttention",  // Method to be called
+                            &bus_error,      // object to return error
+                            &response,       // Response buffer if any
+                            NULL);           // No input arguments
+    if(rc < 0)
+    {
+        fprintf(stderr,"ERROR initiating Power Off:[%s]\n",bus_error.message);
+        goto finish;
+    }
+
+    // See if we were able to successfully raise SMS_ATN
+    rc = sd_bus_message_read(response, "x", &bt_resp);
+    if (rc < 0)
+    {
+        fprintf(stderr, "Failed to get a rc from BT for SMS_ATN: %s\n", strerror(-rc));
+        goto finish;
+    }
+
+finish:
+    sd_bus_error_free(&bus_error);
+    response = sd_bus_message_unref(response);
+    free(bus_name);
+
+    if(rc < 0)
+    {
+        return sd_bus_reply_method_return(m, "x", rc);
+    }
+    else
+    {
+        return sd_bus_reply_method_return(m, "x", bt_resp);
+    }
+}
+
+//-------------------------------------------
+// Function pointer of APIs exposed via Dbus
+//-------------------------------------------
+static const sd_bus_vtable host_services_vtable[] =
+{
+    SD_BUS_VTABLE_START(0),
+    // Takes No("") arguments -but- returns a value of type 64 bit integer("x")
+    SD_BUS_METHOD("SoftPowerOff", "", "x", &soft_power_off, SD_BUS_VTABLE_UNPRIVILEGED),
+    SD_BUS_VTABLE_END,
+};
+
+//------------------------------------------------------
+// Called by IPMID as part of the start up
+// -----------------------------------------------------
+int start_host_service(sd_bus *bus, sd_bus_slot *slot)
+{
+    int rc = 0;
+
+    /* Install the object */
+    rc = sd_bus_add_object_vtable(bus,
+                                 &slot,
+                                "/org/openbmc/HostServices",  /* object path */
+                                "org.openbmc.HostServices",   /* interface name */
+                                host_services_vtable,
+                                NULL);
+    if (rc < 0)
+    {
+        fprintf(stderr, "Failed to issue method call: %s\n", strerror(-rc));
+    }
+    else
+    {
+        /* Take one in OpenBmc */
+        rc = sd_bus_request_name(bus, "org.openbmc.HostServices", 0);
+        if (rc < 0)
+        {
+            fprintf(stderr, "Failed to acquire service name: %s\n", strerror(-rc));
+        }
+    }
+
+    return rc < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
+//------------------------------------------------------
+// Callback register function
+// -----------------------------------------------------
+void register_host_services()
+{
+    // Gets a hook onto SYSTEM bus used by host-ipmid
+    sd_bus *bus = ipmid_get_sd_bus_connection();
+
+    // Gets a hook onto SYSTEM bus slot used by host-ipmid
+    sd_bus_slot *ipmid_slot = ipmid_get_sd_bus_slot();
+
+    //start_host_service(bus, ipmid_slot);
+    start_host_service(bus, ipmid_slot);
+}