[PATCH phosphor-host-ipmid 2/5] Add routines for getting lookup data from the system dbus object

[OpenBMC Patches]

From: Chris Austen <austenc at us.ibm.com>

---
 ipmid.C | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)

diff --git a/ipmid.C b/ipmid.C
index 87f993e..db2f6b9 100644
--- a/ipmid.C
+++ b/ipmid.C
@@ -426,3 +426,124 @@ finish:
     return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 
 }
+
+
+#define MAX_DBUS_PATH 128
+struct dbus_interface_t {
+    uint8_t  sensornumber;
+    uint8_t  sensortype;
+
+    char  bus[MAX_DBUS_PATH];
+    char  path[MAX_DBUS_PATH];
+    char  interface[MAX_DBUS_PATH];
+};
+
+
+
+// Use a lookup table to find the interface name of a specific sensor
+// This will be used until an alternative is found.  this is the first
+// step for mapping IPMI
+int find_openbmc_path(const char *type, const uint8_t num, dbus_interface_t *interface) {
+
+    const char  *busname = "org.openbmc.managers.System";
+    const char  *objname = "/org/openbmc/managers/System";
+
+    char  *str1, *str2, *str3;
+    sd_bus_error error = SD_BUS_ERROR_NULL;
+    sd_bus_message *reply = NULL, *m=NULL;
+
+
+    int r;
+
+    r = sd_bus_message_new_method_call(bus,&m,busname,objname,busname,"getObjectFromByteId");
+    if (r < 0) {
+        fprintf(stderr, "Failed to create a method call: %s", strerror(-r));
+    }
+
+    r = sd_bus_message_append(m, "sy", type, num);
+    if (r < 0) {
+        fprintf(stderr, "Failed to create a input parameter: %s", strerror(-r));
+    }
+
+    // Call the IPMI responder on the bus so the message can be sent to the CEC
+    r = sd_bus_call(bus, m, 0, &error, &reply);
+    if (r < 0) {
+        fprintf(stderr, "Failed to call the method: %s", strerror(-r));
+        goto final;
+    }
+
+
+    r = sd_bus_message_read(reply, "(sss)", &str1, &str2, &str3);
+    if (r < 0) {
+        fprintf(stderr, "Failed to get a response: %s", strerror(-r));
+        goto final;
+    }
+
+    strncpy(interface->bus, str1, MAX_DBUS_PATH);
+    strncpy(interface->path, str2, MAX_DBUS_PATH);
+    strncpy(interface->interface, str3, MAX_DBUS_PATH);
+
+    interface->sensornumber = num;
+
+
+final:
+
+    sd_bus_error_free(&error);
+    sd_bus_message_unref(m);
+
+    return r;
+}
+
+
+/////////////////////////////////////////////////////////////////////
+//
+// Routines used by ipmi commands wanting to interact on the dbus
+//
+/////////////////////////////////////////////////////////////////////
+
+
+// Simple set routine because some methods are standard.
+int set_sensor_dbus_state(uint8_t number, const char *method, const char *value) {
+
+
+    dbus_interface_t a;
+    int r;
+    sd_bus_error error = SD_BUS_ERROR_NULL;
+    sd_bus_message *reply = NULL, *m=NULL;
+
+    printf("Attempting to set a dbus Sensor 0x%02x via %s with a value of %s\n",
+        number, method, value);
+
+    r = find_openbmc_path("SENSOR", number, &a);
+
+    printf("**********************\n");
+    printf("%s\n", a.bus);
+    printf("%s\n", a.path);
+    printf("%s\n", a.interface);
+
+
+    r = sd_bus_message_new_method_call(bus,&m,a.bus,a.path,a.interface,method);
+    if (r < 0) {
+        fprintf(stderr, "Failed to create a method call: %s", strerror(-r));
+    }
+
+    r = sd_bus_message_append(m, "s", value);
+    if (r < 0) {
+        fprintf(stderr, "Failed to create a input parameter: %s", strerror(-r));
+    }
+
+    // Call the IPMI responder on the bus so the message can be sent to the CEC
+    r = sd_bus_call(bus, m, 0, &error, &reply);
+    if (r < 0) {
+        fprintf(stderr, "Failed to call the method: %s", strerror(-r));
+    }
+
+
+
+    sd_bus_error_free(&error);
+    sd_bus_message_unref(m);
+
+    return 0;
+
+
+}
-- 
2.6.0