[mpls-linux-general] How to interprete the buffer received from the netlink socket.

[Suryakant <s_...@ya...>]

Hi,
I am trying to read routing table on linux machine using netlink socket.

Can anybody please help me, how to interprete the buffer received
from the netlink socket.

The buffer containes data like this :
[Print format is <space> between two bytes and <\n> between to entries]

84    0    0    0   24    0    2    0  148   99    0   64   14    3
0    0    2   32    0    0  254    0    0    3    0    2    0  144
8    0    1    0  255  255  255  255    8    0    4    0    1    0
0    0    8    0    7    0  192  168  250  137   24    0   12    0
1    0    0    0  252    9    0    0    0    0    0    0    0    0
0    0   21    4    0    0    8    0    3    0    3    0    0    0

92    0    0    0   24    0    2    0  148   99    0   64   14    3
0    0    2   32   32    0  254    0    0    3    0    2    0  148
8    0    1    0  192  168  250  159    8    0    2    0  192  168  250
144    8    0    4    0    1    0    0    0    8    0    7    0  192
168  250  137   24    0   12    0    1    0    0    0  224   48    0
0    0    0    0    0    0    0    0    0  101    6    0    0    8
0    3    0    3    0    0    0

92    0    0    0   24    0    2    0  148   99    0   64   14    3
0    0    2   32   32    0  254    0    0    2    0    2    0  128
8    0    1    0  192  168  250  137    8    0    2    0  192  135  240
218    8    0    4    0    1    0    0    0    8    0    7    0  192
168  250  137   24    0   12    0    1    0    0    0    1    0    0
0    0    0    0    0    0    0    0    0   93    0    0    0    8
0    3    0    3    0    0    0

104    0    0    0   24    0    2    0  148   99    0   64   14    3
0    0    2   32   32    0  254    0    0    1    0    2    0    0
8    0    1    0  192  135  240  218    8    0    2    0  192  168  250
137    8    0    4    0    3    0    0    0    8    0    5    0  192
168  250  129   20    0    8    0    8    0    2    0  220    5    0
0    8    0    4    0   44    1    0    0   24    0   12    0    2
0    0    0  181   62    1    0    0    0    0    0    0    0    0    0
2    0    0    0

My requirement is to get routing entries (fib) but what I am getting is
matching with entries in /proc/net/rt_cache

[Print of  /proc/net/rt_cache]
1 Iface   Destination     Gateway         Flags           RefCnt
Use     Metric  Source          MTU     Window  IRTT    TOS     HHRef
HHUptod SpecDst

2 lo      FFFFFFFF        FFFFFFFF        90000000        0
1057    0       00000000        0       0       0       00      -1
0       89FAA8C0

3 lo      9FFAA8C0        9FFAA8C0        94000000        0
1675    0       90FAA8C0        0       0       0       00      -1
0       89FAA8C0

4 lo      89FAA8C0        89FAA8C0        80000000        0
139     0       DAF087C0        0       0       0       00      -1
0       89FAA8C0

5 eth0    DAF087C0        81FAA8C0               0        1
2       0       89FAA8C0        1500    0       300     00      2
1       89FAA8C0


Kindly reply ASAP.

Thanks in advance ....
Surya