That's simply because the number in the first tree node after the MIB OID is ignored. The macro practically reads "SNMP_CREATE_TREE_NODE(<don't care number>, private_nodes);" - but again, only for the FIRST tree node after a MIB node!
To avoid confusion, that "don't care number" should be the same as the last number as in the base MIB. Ciao Dirk On Sun, Dec 10, 2017 at 11:28 AM, Zahir Lalani <za...@systemz.net> wrote: > Hi All > > Been looking at the examples for MIB setup but one thing in the example > confused me: > > Ref: > https://github.com/yarrick/lwip-contrib/blob/master/ > examples/snmp/snmp_priva > te_mib/lwip_prvmib.c > > > Option 1 for the base MIB node is: > ------------------------------------------------------------ > ---------------- > - > /* example .1.3.6.1.4.1.26381.1 */ > static const struct snmp_tree_node example_node = SNMP_CREATE_TREE_NODE(1, > example_nodes); > > static const u32_t prvmib_base_oid[] = { 1,3,6,1,4,1,26381,1 }; > > const struct snmp_mib mib_private = SNMP_MIB_CREATE(prvmib_base_oid, > &example_node.node); > ------------------------------------------------------------ > ---------------- > - > > In this case the base oid ends in 1, and the tree node create uses 1 as the > oid node. Makes sense. > > The code then gives an alternate example which builds up the base from > higher up the tree. The base node create is now: > > ------------------------------------------------------------ > ---------------- > - > /* private .1.3.6.1.4 */ > static const struct snmp_node* const private_nodes[] = { > &enterprises_node.node > }; > static const struct snmp_tree_node private_root = SNMP_CREATE_TREE_NODE(0, > private_nodes); > > static const u32_t prvmib_base_oid[] = { 1,3,6,1,4 }; > const struct snmp_mib mib_private = SNMP_MIB_CREATE(prvmib_base_oid, > &private_root.node); > ------------------------------------------------------------ > ---------------- > - > > Here the base node ends in 4, and I would have expected the tree node > create > to use 4 as the node id, but it uses 0. > > Which one is correct? > > Thx > > > Z > > > _______________________________________________ > lwip-users mailing list > lwip-users@nongnu.org > https://lists.nongnu.org/mailman/listinfo/lwip-users >
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