Add an object to restart PTP via SNMP (wrpcPtpConfigRestart).
Also don't restart ppsi after SFP updates in the flash.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

When snmpset is performed on not existing or read only OID, then response
packet does not contain to-be-set value. Due to that, returning packet is
shorter. It is necessary to recalculate sizes of the fields inside the response
packet.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Pass returned value from twig functions (group and table) in the response.
Now setting read only values return proper error (SNMP_ERR_READONLY).

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

SNMPv1 does not support counter64.
Add tests for that too.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

spec_snmp_defconfig -- config for spec with SNMP responder enabled
spec_snmp_set_verbose_defconfig -- config for spec with enabled SNMP
    (SNMP responder, SETs, verbose), fake temperatures, SDB storage

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

"sfp detect" was incorporated into "sfp match".

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

We don't use these functions.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

We revert this commit, since we decided to support objects only from our own
MIB. So we don't need this this specific time format.

So, revert the commit:
util: add the perverse SNMP 'string' time format

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Restart ppsi after updating deltas or alpha.
Update can be in memory or in database, restart ppsi in both cases.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Tests use bats (https://github.com/sstephenson/bats

) for testing.
Clone bat's repo, checkout commit 03608115

To test invoke "make TARGET_IP=x.x.x.x"

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Add wrpcSfpTable, which dumps the SFPs databse

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

When returning error make sure there is an ASN_NULL at the end of SNMP packet.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Requests produced by net-snmp's snmpget and snmpgetnext usually contains
4 byte request ID, but sometimes it is only 3 bytes.
When request ID is below 2^24 sometimes it is send as 3 bytes, sometimes as
4 byte value.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Split the OIDs into limb and twig parts.
Twig part can be interpreted as a groups or a table.
For each limb (group or table) there is an array with twigs (OIDs within group
or table).
When the limb part is matched, then the group or table function is called for
the twigs part.

Additionally:
--Add the table with temperatures (wrpcTemperatureTable). Any number of
  sensors is supported.
--Add wrpcTemperatureTable to the MIB
--print_oid_verbose can now print parts of OIDs

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Write to the flash, if failed return corresponding error.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Possible to read/write:
-- wrpcPtpConfigApply
-- wrpcPtpConfigDeltaTx
-- wrpcPtpConfigDeltaRx
-- wrpcPtpConfigAlpha
-- wrpcPtpConfigSfpPn

setting a value writeToMemoryCurrentSfp to the wrpcPtpConfigApply will update sfp info in memory.
For now it is necessary to restart ptp to reload new sfp information.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

add:
-- wrpcPortLinkStatus
-- wrpcPortSfpPn
-- wrpcPortSfpInDB
-- wrpcPortInternalTX
-- wrpcPortInternalRX

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Add:
--wrpcPtpServoStateN(5)
--wrpcPtpClockOffsetPsHR(8)
--wrpcPtpSkew(9)
--wrpcPtpRTT(10)
--wrpcPtpServoUpdates(12)
--wrpcPtpServoUpdateTime(13)
--wrpcPtpDeltaTxM(14)
--wrpcPtpDeltaRxM(15)
--wrpcPtpDeltaTxS(16)
--wrpcPtpDeltaRxS(17)
--wrpcPtpServoStateErrCnt(18)
--wrpcPtpClockOffsetErrCnt(19)
--wrpcPtpRTTErrCnt(20)
--wrpcPtpAsymmetry(22)
--wrpcPtpTX(23)
--wrpcPtpRX(24)
--wrpcPtpAlpha(26)

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

add:
-- wrpcSpllMode
-- wrpcSpllIrqCnt
-- wrpcSpllSeqState
-- wrpcSpllAlignState
-- wrpcSpllHlock
-- wrpcSpllMlock
-- wrpcSpllHY
-- wrpcSpllMY
-- wrpcSpllDelCnt

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

add:
-- wrpcDateTAI
-- wrpcDateTAIString
-- wrpcSystemUptime

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

They will be implemented with different OIDs.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Add "--x " to all objects. "--x " will be removed when particular object
is implemented.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Mostly spacing and indentation.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

adding uint8_t data_size; to struct snmp_oid does not change memory usage
due to memory alignment.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

rename:
fill -> get
fill_tics -> get_tics
fill_date -> get_date
fill_asn -> get_value
fill_struct_pp_asn -> get_pp
fill_struct_p_asn -> get_p
fill_int32_saturate -> get_i32sat
fill_int32_saturate_pp -> get_i32sat_pp

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

By this 32bytes are saved.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

It will be possible to set via SNMP system name when SNMP SET is implemented.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Respond with SNMP_ERR_GENERR for versions never than 2.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>