static int
_get_shared_sensor_name (ipmi_sdr_ctx_t ctx,
const void *sdr_record,
unsigned int sdr_record_len,
uint8_t sensor_number,
const char *id_string,
char *buf,
unsigned int buflen)
{
uint8_t share_count;
uint8_t id_string_instance_modifier_type;
uint8_t id_string_instance_modifier_offset;
assert (ctx);
assert (ctx->magic == IPMI_SDR_CTX_MAGIC);
assert (id_string);
if (ipmi_sdr_parse_sensor_record_sharing (ctx,
sdr_record,
sdr_record_len,
&share_count,
&id_string_instance_modifier_type,
&id_string_instance_modifier_offset,
NULL) < 0)
return (-1);
if (share_count > 1)
{
uint8_t sensor_number_base;
uint8_t sensor_number_offset;
if (ipmi_sdr_parse_sensor_number (ctx,
sdr_record,
sdr_record_len,
&sensor_number_base) < 0)
return (-1);
/* I guess it's a bug if the sensor number passed in is bad */
if (sensor_number >= sensor_number_base)
sensor_number_offset = sensor_number - sensor_number_base;
else
goto fallthrough;
if (id_string_instance_modifier_type == IPMI_SDR_ID_STRING_INSTANCE_MODIFIER_TYPE_ALPHA)
{
char modifierbuf[IPMI_SDR_MODIFIER_BUFLEN];
memset (modifierbuf, '\0', IPMI_SDR_MODIFIER_BUFLEN);
/* IPMI spec example is:
*
* "If the modifier = alpha, offset=0
* corresponds to 'A', offset=25 corresponses to
* 'Z', and offset = 26 corresponds to 'AA', for
* offset=26 the sensors could be identified as:
* Temp AA, Temp AB, Temp AC."
*
* achu note: id_string_instance_modifier_type
* is a 7 bit field, so we cannot reach a
* situation of 'AAA' or 'AAB'. The max is
* 'EX':
*
* 'A' + (127/26) = 4 => 'E'
* 'A' + (127 % 26) = 23 => 'X'
*/
if ((id_string_instance_modifier_type + sensor_number_offset) < IPMI_SDR_CHARS_IN_ALPHABET)
snprintf (buf,
buflen,
"%s %c",
id_string,
'A' + ((id_string_instance_modifier_type + sensor_number_offset)/IPMI_SDR_CHARS_IN_ALPHABET));
else
snprintf (buf,
buflen,
"%s %c%c",
id_string,
'A' + ((id_string_instance_modifier_type + sensor_number_offset)/IPMI_SDR_CHARS_IN_ALPHABET),
'A' + (id_string_instance_modifier_type % IPMI_SDR_CHARS_IN_ALPHABET));
}
else
{
/* IPMI spec example is:
*
* "Suppose sensor ID is 'Temp' for 'Temperature
* Sensor', share count = 3, ID string instance
* modifier = numeric, instance modifier offset
* = 5 - then the sensors oculd be identified
* as: Temp 5, Temp 6, Temp 7"
*/
snprintf (buf,
buflen,
"%s %u",
id_string,
id_string_instance_modifier_offset + sensor_number_offset);
}
return (0);
}
fallthrough:
snprintf (buf,
buflen,
"%s",
id_string);
return (0);
}
static int
_entity_id_instances_count (ipmi_sdr_ctx_t ctx,
uint8_t record_type,
const void *sdr_record,
unsigned int sdr_record_len)
{
uint8_t entity_id, entity_instance, entity_instance_type;
assert (ctx);
assert (ctx->magic == IPMI_SDR_CTX_MAGIC);
assert (sdr_record);
assert (sdr_record_len);
if (record_type != IPMI_SDR_FORMAT_FULL_SENSOR_RECORD
&& record_type != IPMI_SDR_FORMAT_COMPACT_SENSOR_RECORD
&& record_type != IPMI_SDR_FORMAT_EVENT_ONLY_RECORD
&& record_type != IPMI_SDR_FORMAT_GENERIC_DEVICE_LOCATOR_RECORD
&& record_type != IPMI_SDR_FORMAT_MANAGEMENT_CONTROLLER_DEVICE_LOCATOR_RECORD)
return (0);
if (ipmi_sdr_parse_entity_id_instance_type (ctx,
sdr_record,
sdr_record_len,
&entity_id,
&entity_instance,
&entity_instance_type) < 0)
{
SDR_SET_INTERNAL_ERRNUM (ctx);
return (-1);
}
/* if it's a container entity, not part of our calculations */
if (entity_instance_type == IPMI_SDR_LOGICAL_CONTAINER_ENTITY)
return (0);
if (_entity_id_add_instance (ctx, entity_id, entity_instance) < 0)
return (-1);
/* special case if sensor sharing is involved */
if (record_type == IPMI_SDR_FORMAT_COMPACT_SENSOR_RECORD
|| record_type == IPMI_SDR_FORMAT_EVENT_ONLY_RECORD)
{
uint8_t share_count;
uint8_t entity_instance_sharing;
if (ipmi_sdr_parse_sensor_record_sharing (ctx,
sdr_record,
sdr_record_len,
&share_count,
NULL,
NULL,
&entity_instance_sharing) < 0)
{
SDR_SET_INTERNAL_ERRNUM (ctx);
return (-1);
}
if (share_count > 1
&& entity_instance_sharing == IPMI_SDR_ENTITY_INSTANCE_INCREMENTS_FOR_EACH_SHARED_RECORD)
{
unsigned int i;
for (i = 1; i < share_count; i++)
{
if (_entity_id_add_instance (ctx, entity_id, entity_instance + i) < 0)
return (-1);
}
}
}
return (0);
}
int
ipmi_sdr_parse_entity_sensor_name (ipmi_sdr_ctx_t ctx,
const void *sdr_record,
unsigned int sdr_record_len,
uint8_t sensor_number,
unsigned int flags,
char *buf,
unsigned int buflen)
{
char id_string[IPMI_SDR_MAX_ID_STRING_LENGTH + 1];
char device_id_string[IPMI_SDR_MAX_DEVICE_ID_STRING_LENGTH + 1];
char entity_name_buf[IPMI_SDR_ENTITY_NAME_BUFLEN + 1];
char *id_string_ptr = NULL;
uint8_t entity_id, entity_instance, entity_instance_type;
const char *entity_id_str;
uint8_t record_type;
unsigned int flags_mask = (IPMI_SDR_SENSOR_NAME_FLAGS_IGNORE_SHARED_SENSORS
| IPMI_SDR_SENSOR_NAME_FLAGS_ALWAYS_OUTPUT_INSTANCE_NUMBER);
if (!ctx || ctx->magic != IPMI_SDR_CTX_MAGIC)
{
ERR_TRACE (ipmi_sdr_ctx_errormsg (ctx), ipmi_sdr_ctx_errnum (ctx));
return (-1);
}
if (ctx->operation != IPMI_SDR_OPERATION_READ_CACHE)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_CACHE_READ_INITIALIZATION);
return (-1);
}
if (((sdr_record_len && !sdr_record_len)
|| (!sdr_record && sdr_record_len))
|| (flags & ~flags_mask)
|| !buf
|| !buflen)
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_PARAMETERS);
return (-1);
}
memset (buf, '\0', buflen);
memset (entity_name_buf, '\0', IPMI_SDR_ENTITY_NAME_BUFLEN + 1);
if (ipmi_sdr_parse_record_id_and_type (ctx,
sdr_record,
sdr_record_len,
NULL,
&record_type) < 0)
return (-1);
if (record_type == IPMI_SDR_FORMAT_FULL_SENSOR_RECORD
|| record_type == IPMI_SDR_FORMAT_COMPACT_SENSOR_RECORD
|| record_type == IPMI_SDR_FORMAT_EVENT_ONLY_RECORD)
{
memset (id_string, '\0', IPMI_SDR_MAX_ID_STRING_LENGTH + 1);
if (ipmi_sdr_parse_id_string (ctx,
sdr_record,
sdr_record_len,
id_string,
IPMI_SDR_MAX_ID_STRING_LENGTH) < 0)
return (-1);
id_string_ptr = id_string;
}
else if (record_type == IPMI_SDR_FORMAT_GENERIC_DEVICE_LOCATOR_RECORD
|| record_type == IPMI_SDR_FORMAT_MANAGEMENT_CONTROLLER_DEVICE_LOCATOR_RECORD)
{
memset (device_id_string, '\0', IPMI_SDR_MAX_DEVICE_ID_STRING_LENGTH + 1);
if (ipmi_sdr_parse_device_id_string (ctx,
sdr_record,
sdr_record_len,
device_id_string,
IPMI_SDR_MAX_DEVICE_ID_STRING_LENGTH) < 0)
return (-1);
id_string_ptr = device_id_string;
}
else
{
SDR_SET_ERRNUM (ctx, IPMI_SDR_ERR_PARSE_INVALID_SDR_RECORD);
return (-1);
}
if (ipmi_sdr_parse_entity_id_instance_type (ctx,
sdr_record,
sdr_record_len,
&entity_id,
&entity_instance,
&entity_instance_type) < 0)
return (-1);
/* Table 39-1
*
* "It is recommended that console software subtract 60h when
* presenting device-relative Entity Instance values, and present
* the Entity Instance number along with an ID for the device
* providing the interface to the entity."
*
* achu: For the time being we do not output the device providing
* the interface, only the right instance number. Adjust later if
* necessary.
*/
if (IPMI_ENTITY_INSTANCE_DEVICE_RELATIVE (entity_instance))
entity_instance -= IPMI_ENTITY_INSTANCE_DEVICE_RELATIVE_MIN;
entity_id_str = ipmi_get_entity_id_string (entity_id);
/* a few special cases, for entity_ids are special, the vendor has
* specifically stated there is no "entity" associated with this sdr
* record
*/
if (entity_id == IPMI_ENTITY_ID_UNSPECIFIED
|| entity_id == IPMI_ENTITY_ID_OTHER
|| entity_id == IPMI_ENTITY_ID_UNKNOWN)
snprintf (buf,
buflen,
"%s",
id_string_ptr);
else
{
if (ipmi_sdr_stats_compile (ctx) < 0)
return (-1);
if (ipmi_sdr_stats_entity_instance_unique (ctx, entity_id) > 1)
{
/* special case if sensor sharing is involved */
if ((record_type == IPMI_SDR_FORMAT_COMPACT_SENSOR_RECORD
|| record_type == IPMI_SDR_FORMAT_EVENT_ONLY_RECORD)
&& !(flags & IPMI_SDR_SENSOR_NAME_FLAGS_IGNORE_SHARED_SENSORS))
{
uint8_t share_count;
uint8_t entity_instance_sharing;
char sensor_name_buf[IPMI_SDR_MAX_SENSOR_NAME_LENGTH + 1];
if (ipmi_sdr_parse_sensor_record_sharing (ctx,
sdr_record,
sdr_record_len,
&share_count,
NULL,
NULL,
&entity_instance_sharing) < 0)
return (-1);
if (share_count > 1
&& entity_instance_sharing == IPMI_SDR_ENTITY_INSTANCE_INCREMENTS_FOR_EACH_SHARED_RECORD)
{
uint8_t sensor_number_base;
if (ipmi_sdr_parse_sensor_number (ctx,
sdr_record,
sdr_record_len,
&sensor_number_base) < 0)
return (-1);
/* I guess it's a bug if the sensor number passed in is bad */
if (sensor_number >= sensor_number_base)
entity_instance += (sensor_number - sensor_number_base);
else
goto fallthrough;
}
memset (sensor_name_buf, '\0', IPMI_SDR_MAX_SENSOR_NAME_LENGTH + 1);
if (_get_shared_sensor_name (ctx,
sdr_record,
sdr_record_len,
sensor_number,
id_string_ptr,
sensor_name_buf,
IPMI_SDR_MAX_SENSOR_NAME_LENGTH) < 0)
return (-1);
snprintf (entity_name_buf,
IPMI_SDR_ENTITY_NAME_BUFLEN,
"%s %u",
entity_id_str,
entity_instance);
/* In odd chance the strings end up identical */
if (!strcasecmp (entity_name_buf, sensor_name_buf))
snprintf (buf,
buflen,
"%s",
sensor_name_buf);
else
snprintf (buf,
buflen,
"%s %s",
entity_name_buf,
sensor_name_buf);
}
else
{
fallthrough:
snprintf (entity_name_buf,
IPMI_SDR_ENTITY_NAME_BUFLEN,
"%s %u",
entity_id_str,
entity_instance);
/* In odd chance the strings end up identical */
if (!strcasecmp (entity_name_buf, id_string_ptr))
snprintf (buf,
buflen,
"%s",
id_string_ptr);
else
snprintf (buf,
buflen,
"%s %s",
entity_name_buf,
id_string_ptr);
}
}
else
{
if (flags & IPMI_SDR_SENSOR_NAME_FLAGS_ALWAYS_OUTPUT_INSTANCE_NUMBER)
{
snprintf (entity_name_buf,
IPMI_SDR_ENTITY_NAME_BUFLEN,
"%s %u",
entity_id_str,
entity_instance);
/* In odd chance the strings end up identical */
if (!strcasecmp (entity_name_buf, id_string_ptr))
snprintf (buf,
buflen,
"%s",
id_string_ptr);
else
snprintf (buf,
buflen,
"%s %s",
entity_name_buf,
id_string_ptr);
}
else
{
/* In odd chance the strings end up identical */
if (!strcasecmp (entity_id_str, id_string_ptr))
snprintf (buf,
buflen,
"%s",
id_string_ptr);
else
snprintf (buf,
buflen,
"%s %s",
entity_id_str,
id_string_ptr);
}
}
}
return (0);
}
int
ipmi_sensor_read (ipmi_sensor_read_ctx_t ctx,
const void *sdr_record,
unsigned int sdr_record_len,
uint8_t shared_sensor_number_offset,
uint8_t *sensor_reading_raw,
double **sensor_reading,
uint16_t *sensor_event_bitmask)
{
double *tmp_sensor_reading = NULL;
uint64_t val;
int rv = -1;
fiid_obj_t obj_cmd_rs = NULL;
uint8_t sensor_event_bitmask1 = 0;
uint8_t sensor_event_bitmask2 = 0;
int sensor_event_bitmask1_flag = 0;
int sensor_event_bitmask2_flag = 0;
uint16_t record_id = 0;
uint8_t record_type = 0;
uint8_t sensor_number = 0;
uint8_t event_reading_type_code = 0;
uint8_t sensor_owner_id_type = 0;
uint8_t sensor_owner_id = 0;
uint8_t sensor_owner_lun = 0;
uint8_t channel_number = 0;
uint8_t slave_address = 0;
uint8_t reading_state, sensor_scanning;
uint8_t local_sensor_reading_raw;
unsigned int ctx_flags_orig;
int event_reading_type_code_class = 0;
if (!ctx || ctx->magic != IPMI_SENSOR_READ_CTX_MAGIC)
{
ERR_TRACE (ipmi_sensor_read_ctx_errormsg (ctx), ipmi_sensor_read_ctx_errnum (ctx));
return (-1);
}
if (!sdr_record
|| !sdr_record_len
|| !sensor_reading
|| !sensor_event_bitmask)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_PARAMETERS);
return (-1);
}
*sensor_reading = NULL;
*sensor_event_bitmask = 0;
if (ipmi_sdr_parse_record_id_and_type (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&record_id,
&record_type) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (record_type != IPMI_SDR_FORMAT_FULL_SENSOR_RECORD
&& record_type != IPMI_SDR_FORMAT_COMPACT_SENSOR_RECORD)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INVALID_SDR_RECORD_TYPE);
goto cleanup;
}
if (ipmi_sdr_parse_sensor_owner_id (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&sensor_owner_id_type,
&sensor_owner_id) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (ipmi_sdr_parse_sensor_owner_lun (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&sensor_owner_lun,
&channel_number) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (ipmi_sdr_parse_sensor_number (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&sensor_number) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (shared_sensor_number_offset)
{
uint8_t share_count;
if (record_type != IPMI_SDR_FORMAT_COMPACT_SENSOR_RECORD)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INVALID_SDR_RECORD_TYPE);
goto cleanup;
}
if (ipmi_sdr_parse_sensor_record_sharing (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&share_count,
NULL,
NULL,
NULL) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (share_count <= 1)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INVALID_SDR_RECORD_TYPE);
goto cleanup;
}
if ((sensor_number + share_count) < (sensor_number + shared_sensor_number_offset))
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_PARAMETERS);
goto cleanup;
}
sensor_number += shared_sensor_number_offset;
}
if (ipmi_sdr_parse_event_reading_type_code (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&event_reading_type_code) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (sensor_owner_id_type == IPMI_SDR_SENSOR_OWNER_ID_TYPE_SYSTEM_SOFTWARE_ID)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SENSOR_IS_SYSTEM_SOFTWARE);
goto cleanup;
}
slave_address = (sensor_owner_id << 1) | sensor_owner_id_type;
if (!(obj_cmd_rs = fiid_obj_create (tmpl_cmd_get_sensor_reading_rs)))
{
SENSOR_READ_ERRNO_TO_SENSOR_READ_ERRNUM (ctx, errno);
goto cleanup;
}
/*
* IPMI Workaround (achu)
*
* See comments below concerning sensor_event_bitmask.
*/
if (ipmi_ctx_get_flags (ctx->ipmi_ctx, &ctx_flags_orig) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INTERNAL_ERROR);
goto cleanup;
}
if (ipmi_ctx_set_flags (ctx->ipmi_ctx, ctx_flags_orig | IPMI_FLAGS_NO_VALID_CHECK) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INTERNAL_ERROR);
goto cleanup;
}
/* IPMI Workaround
*
* Discovered on Fujitsu RX300
* Discovered on Fujitsu RX300S2
*
* On some motherboards, the sensor owner is invalid. The sensor
* owner as atually the BMC.
*/
if (!(ctx->flags & IPMI_SENSOR_READ_FLAGS_ASSUME_BMC_OWNER))
{
if (slave_address == IPMI_SLAVE_ADDRESS_BMC)
{
if (_get_sensor_reading (ctx,
sensor_number,
obj_cmd_rs) < 0)
goto cleanup;
}
else
{
if (_get_sensor_reading_ipmb (ctx,
slave_address,
sensor_owner_lun,
channel_number,
sensor_number,
obj_cmd_rs) < 0)
goto cleanup;
}
}
else
{
if (_get_sensor_reading (ctx,
sensor_number,
obj_cmd_rs) < 0)
goto cleanup;
}
/*
* IPMI Workaround (achu)
*
* See comments below concerning sensor_event_bitmask.
*/
if (ipmi_ctx_set_flags (ctx->ipmi_ctx, ctx_flags_orig) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INTERNAL_ERROR);
goto cleanup;
}
if (FIID_OBJ_GET (obj_cmd_rs,
"reading_state",
&val) < 0)
{
SENSOR_READ_FIID_OBJECT_ERROR_TO_SENSOR_READ_ERRNUM (ctx, obj_cmd_rs);
goto cleanup;
}
reading_state = val;
if (reading_state == IPMI_SENSOR_READING_STATE_UNAVAILABLE)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SENSOR_READING_UNAVAILABLE);
goto cleanup;
}
/* IPMI Workaround
*
* Discovered on Dell Poweredge 2900
* Discovered on Dell Poweredge 2950
* Discovered on Dell Poweredge R410
* Discovered on Dell Poweredge R610
*
* On some motherboards, the sensor scanning bit is invalid for sensors.
*/
if (!(ctx->flags & IPMI_SENSOR_READ_FLAGS_IGNORE_SCANNING_DISABLED))
{
if (FIID_OBJ_GET (obj_cmd_rs,
"sensor_scanning",
&val) < 0)
{
SENSOR_READ_FIID_OBJECT_ERROR_TO_SENSOR_READ_ERRNUM (ctx, obj_cmd_rs);
goto cleanup;
}
sensor_scanning = val;
if (sensor_scanning == IPMI_SENSOR_SCANNING_ON_THIS_SENSOR_DISABLE)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SENSOR_SCANNING_DISABLED);
goto cleanup;
}
}
/* achu:
*
* Note: I don't bother checking the "all_event_messages" flag from
* the get_sensor_reading response. If that stuff is turned off,
* the bitmasks should be zeroed out.
*
* Hopefully this doesn't bite me later on.
*
* Call the normal fiid_obj_get instead of the wrapper, if the field
* isn't set, we want to know and not error out.
*/
if ((sensor_event_bitmask1_flag = fiid_obj_get (obj_cmd_rs,
"sensor_event_bitmask1",
&val)) < 0)
{
SENSOR_READ_FIID_OBJECT_ERROR_TO_SENSOR_READ_ERRNUM (ctx, obj_cmd_rs);
goto cleanup;
}
sensor_event_bitmask1 = val;
if ((sensor_event_bitmask2_flag = fiid_obj_get (obj_cmd_rs,
"sensor_event_bitmask2",
&val)) < 0)
{
SENSOR_READ_FIID_OBJECT_ERROR_TO_SENSOR_READ_ERRNUM (ctx, obj_cmd_rs);
goto cleanup;
}
sensor_event_bitmask2 = val;
/*
* IPMI Workaround (achu)
*
* Discovered on Dell 2950.
*
* It seems the sensor_event_bitmask (16 bits) may not be returned
* by the server at all for some sensors, despite a minimum of 8
* bits being required. Under this situation, there's not much that
* can be done. Since there is no sensor_event_bitmask, we just
* assume that no states have been asserted and the
* sensor_event_bitmask = 0;
*/
if (!sensor_event_bitmask1_flag && !sensor_event_bitmask2_flag)
(*sensor_event_bitmask) = 0;
else if (sensor_event_bitmask1_flag && sensor_event_bitmask2_flag)
(*sensor_event_bitmask) = sensor_event_bitmask1 | (sensor_event_bitmask2 << 8);
else if (sensor_event_bitmask1_flag && !sensor_event_bitmask2_flag)
(*sensor_event_bitmask) = sensor_event_bitmask1;
else
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_IPMI_ERROR);
goto cleanup;
}
if (FIID_OBJ_GET (obj_cmd_rs,
"sensor_reading",
&val) < 0)
{
SENSOR_READ_FIID_OBJECT_ERROR_TO_SENSOR_READ_ERRNUM (ctx, obj_cmd_rs);
goto cleanup;
}
local_sensor_reading_raw = val;
if (sensor_reading_raw)
(*sensor_reading_raw) = local_sensor_reading_raw;
event_reading_type_code_class = ipmi_event_reading_type_code_class (event_reading_type_code);
if (event_reading_type_code_class == IPMI_EVENT_READING_TYPE_CODE_CLASS_THRESHOLD)
{
if (record_type == IPMI_SDR_FORMAT_FULL_SENSOR_RECORD)
{
int8_t r_exponent, b_exponent;
int16_t m, b;
uint8_t linearization, analog_data_format;
if (ipmi_sdr_parse_sensor_decoding_data (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&r_exponent,
&b_exponent,
&m,
&b,
&linearization,
&analog_data_format) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
/* if the sensor is not analog, this is most likely a bug in the
* SDR, since we shouldn't be decoding a non-threshold sensor.
*/
if (!IPMI_SDR_ANALOG_DATA_FORMAT_VALID (analog_data_format))
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SENSOR_NON_ANALOG);
rv = 0;
goto cleanup;
}
/* if the sensor is non-linear, I just don't know what to do,
* let the tool figure out what to output.
*/
if (!IPMI_SDR_LINEARIZATION_IS_LINEAR (linearization))
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SENSOR_NON_LINEAR);
rv = 0;
goto cleanup;
}
if (!(tmp_sensor_reading = (double *)malloc (sizeof (double))))
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_OUT_OF_MEMORY);
goto cleanup;
}
if (ipmi_sensor_decode_value (r_exponent,
b_exponent,
m,
b,
linearization,
analog_data_format,
local_sensor_reading_raw,
tmp_sensor_reading) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INTERNAL_ERROR);
goto cleanup;
}
*sensor_reading = tmp_sensor_reading;
}
rv = 1;
}
else if (event_reading_type_code_class == IPMI_EVENT_READING_TYPE_CODE_CLASS_GENERIC_DISCRETE
|| event_reading_type_code_class == IPMI_EVENT_READING_TYPE_CODE_CLASS_SENSOR_SPECIFIC_DISCRETE)
{
/*
* IPMI Workaround (achu)
*
* Discovered on HP Proliant DL380 G7
* Discovered on HP ProLiant ML310 G5
*
* SDR records for some sensors give conflicting information. A
* threshold based sensor lists an event/reading type code for a
* discrete sensor. The analog data format indicates an
* analog/threshold based sensor, however no threshold limits
* for the sensor are listed in the SDR.
*
* To deal with this, if the analog data format and units
* strongly suggest that a reading should occur with this
* sensor, get the reading and return it.
*
* Note that this can only occur for full records, since
* decoding data does not exist in compact records.
*/
if (ctx->flags & IPMI_SENSOR_READ_FLAGS_DISCRETE_READING
&& record_type == IPMI_SDR_FORMAT_FULL_SENSOR_RECORD)
{
int8_t r_exponent, b_exponent;
int16_t m, b;
uint8_t linearization, analog_data_format;
uint8_t sensor_units_percentage;
uint8_t sensor_units_modifier;
uint8_t sensor_units_rate;
uint8_t sensor_base_unit_type;
uint8_t sensor_modifier_unit_type;
if (ipmi_sdr_parse_sensor_decoding_data (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&r_exponent,
&b_exponent,
&m,
&b,
&linearization,
&analog_data_format) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
if (ipmi_sdr_parse_sensor_units (ctx->sdr_ctx,
sdr_record,
sdr_record_len,
&sensor_units_percentage,
&sensor_units_modifier,
&sensor_units_rate,
&sensor_base_unit_type,
&sensor_modifier_unit_type) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SDR_ENTRY_ERROR);
goto cleanup;
}
/* if the sensor is not analog, this is normal expected
* case, fallthrough to normal expectations
*/
if (!IPMI_SDR_ANALOG_DATA_FORMAT_VALID (analog_data_format))
{
rv = 1;
goto cleanup;
}
/* if the sensor units are not specified, this is the normal expected
* case, fallthrough to normal expectations
*/
if (sensor_units_percentage != IPMI_SDR_PERCENTAGE_YES
&& sensor_base_unit_type == IPMI_SENSOR_UNIT_UNSPECIFIED)
{
rv = 1;
goto cleanup;
}
/* if the sensor is non-linear, I just don't know what to do,
* let the tool figure out what to output.
*/
if (!IPMI_SDR_LINEARIZATION_IS_LINEAR (linearization))
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_SENSOR_NON_LINEAR);
rv = 0;
goto cleanup;
}
if (!(tmp_sensor_reading = (double *)malloc (sizeof (double))))
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_OUT_OF_MEMORY);
goto cleanup;
}
if (ipmi_sensor_decode_value (r_exponent,
b_exponent,
m,
b,
linearization,
analog_data_format,
local_sensor_reading_raw,
tmp_sensor_reading) < 0)
{
SENSOR_READ_SET_ERRNUM (ctx, IPMI_SENSOR_READ_ERR_INTERNAL_ERROR);
goto cleanup;
}
*sensor_reading = tmp_sensor_reading;
}
rv = 1;
}
else if (event_reading_type_code_class == IPMI_EVENT_READING_TYPE_CODE_CLASS_OEM)
/* nothing to do, sensor_event_bitmask already set */
rv = 1;
else
rv = 0;
cleanup:
fiid_obj_destroy (obj_cmd_rs);
if (rv <= 0)
free (tmp_sensor_reading);
return (rv);
}
