Respond with SNMP_ERR_GENERR for versions never than 2.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Now all snmp walks should be possible
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>

Add object with wrpc's version.
For example:
WR-WRPC-MIB::wrWrpcMIB.3.1.0 = STRING: "wrpc-v3.0-161-g4d63c77-dirty"
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

WR-WRPC-MIB.txt is now for testing purposes, it will change.

So far MIB contains following objects:
WR-WRPC-MIB::wrpcPtpRTTHR.0
WR-WRPC-MIB::wrpcPtpDeltaMs.0
WR-WRPC-MIB::wrpcPtpCurSetpoint.0
WR-WRPC-MIB::wrpcNicTX.0
WR-WRPC-MIB::wrpcNicRX.0
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>

Convert function fill_int32_saturate to take pointer to the data and asn.
The interpretation of pointer in struct snmp_oid is done in
fill_int32_saturate_pp.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

From now, struct snmp_oid contais the pointer (p) which is up to the callback
function to know how to interpret the pointer.

It is easier to handle **data and *data in declaration of the oid_array.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

From now function adding the data to snmp packet (fill_asn), just takes pointer
to the data and asn type. Interpretation of a pointer in struct snmp_oid is now
up to the callback function.

It makes easier to handle different data types.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

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

add:
--oid_wrsPtpServoState
--oid_wrsPtpServoStateN
--oid_wrsPtpClockOffsetPsHR
--oid_wrsPtpSkew
--oid_wrpcPtpRTTHR
--oid_wrpcPtpDeltaMs
--oid_wrpcPtpCurSetpoint
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Used to convert 64bit to 32bit. It is better to saturate 32bit during
conversion than just passing 32 LSB bits.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

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

snmp_get_next works only when requesting oid is valid. Otherwise it fails to
find next entry.

Due to the above the snmpwalk works only when the walk is started from
the existing oid. Since snmp walk scans only oids in the current branch,
there was a need to create a special oid .1.3.

$ snmpwalk -On -c public -v 1 192.168.1.20 1.3
.1.3.6.1.2.1.1.5.0 = STRING: "wrc"
.1.3.6.1.2.1.25.1.1.0 = Timeticks: (792773) 2:12:07.73
.1.3.6.1.2.1.25.1.2.0 = Hex-STRING: 07 B2 00 01 05 00 00 00
.1.3.6.1.4.1.96.100.7.5.1.15.1 = Counter32: 445
.1.3.6.1.4.1.96.100.7.5.1.16.1 = INTEGER: 10
.1.3.6.1.4.1.96.100.7.5.1.17.1 = INTEGER: 174810
.1.3.6.1.4.1.96.100.7.5.1.18.1 = INTEGER: 191115
.1.3.6.1.4.1.96.100.7.5.1.19.1 = INTEGER: 157655
Timeout: No Response from 192.168.1.20

NOTE: Timeout message appears becasue there is no responce from node when
wrong packet is sent.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

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

Move SNMP just after syslog.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

--add defines of ASN types
--add 5 object from wrsPtpTable
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

The "community" string is public. We have tree items only: the host
name, the date and uptime.

The code is designed to make it simple any addition. But we only have
snmpget support, not snmpwak (i.e. "get next" query).

This is run on an host build (CONFIG_HOST_PROCESS) where the time and
date are not related to the real world:

   # snmpget -v 1 -c public 192.168.16.1 .1.3.6.1.2.1.1.5.0
   SNMPv2-MIB::sysName.0 = STRING: wrc
   # snmpget -v 1 -c public 192.168.16.1 .1.3.6.1.2.1.25.1.2.0
   HOST-RESOURCES-MIB::hrSystemDate.0 = STRING: 1970-0-1,19:52:34.0
   # snmpget -v 1 -c public 192.168.16.1 .1.3.6.1.2.1.25.1.2.0
   HOST-RESOURCES-MIB::hrSystemDate.0 = STRING: 1970-0-1,19:53:2.0
   # snmpget -v 1 -c public 192.168.16.1 .1.3.6.1.2.1.25.1.1.0
   [...] hrSystemUptime.0 = Timeticks: (94193300) 10 days, 21:38:53.00
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

/var/lib/mibs/ietf/SNMPv2-TC

DateAndTime ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "2d-1d-1d,1d:1d:1d.1d,1a1d:1d"
    STATUS       current
    DESCRIPTION
            "A date-time specification.

            field  octets  contents                  range
            -----  ------  --------                  -----
              1      1-2   year*                     0..65536
              2       3    month                     1..12
              3       4    day                       1..31
              4       5    hour                      0..23
              5       6    minutes                   0..59
              6       7    seconds                   0..60
                           (use 60 for leap-second)
              7       8    deci-seconds              0..9
              8       9    direction from UTC        '+' / '-'
              9      10    hours from UTC*           0..13
             10      11    minutes from UTC          0..59

            * Notes:
            - the value of year is in network-byte order
            - daylight saving time in New Zealand is +13

            For example, Tuesday May 26, 1992 at 1:30:15 PM EDT would be
            displayed as:

                             1992-5-26,13:30:15.0,-4:0

            Note that if only local time is known, then timezone
            information (fields 8-10) is not present."
    SYNTAX       OCTET STRING (SIZE (8 | 11))
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Improve sfp handling
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>

To update an entry when SFP database is in the eeprom, particular entry
is searched then simply updated.
On the other hand, when SFP database is in the flash simple update is
not possible. First old database is copied to the memory, then updated in
memory. After, the erase of the entire flash block is performed. At the end
updated information is written into the flash.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

These stats will be used by SNMP.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

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

Use git config --get-all user.name as an build author, if not available use
user@hostname.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

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

Additionally use type checking
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

It was neither used nor successfully updated (there was no erase before write).
To keep code backward compatible sfp's database is shifted by sizeof(sfpcount)
from the beginnig of the partition.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

By making struct wr_minic non static it is possible for mini SNMP to get RX/TX
counters' values directly from the memory instead of writing a separate
function that will call minic_get_stats. Avoiding extra function saves about
100 bytes.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

It happened that sdbfs_open_id returned error after 2 consecutive adds to
the SFP database using storage_get_sfp function (behaviour not seen when using
shell commands).
It looks like the problem was that reads were started before writes were
finished.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

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

Return 0 when successful, otherwise < 0.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

--Don't use "static char pn" top store sfp's pn.
--Print error when unable to read SFP
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>

EE_BASE_INIT did not include t24p and sfpcount. Due to that init script was overwriten
by adding the 4th SFP. Limit number of SFP in the database to 3. Keep init script's
starting address unchanged for backward compatibility.
SDB is not affected. Use maximum 4 SFPs in the database when SDB is used.
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>