snmp: let handlers accept OID from a lesser prefix
Most table handlers do not expect to be given an OID whose prefix is
outside what they can handle. This is not a problem with the SMUX
implementation since it always correct the OID such that the prefix
matches. However, this is not the case for the AgentX
implementation. A new function, smux_header_table() is used to do this
normalization.
diff --git a/zebra/zebra_snmp.c b/zebra/zebra_snmp.c
index 3dbfb58..f52bbcb 100644
--- a/zebra/zebra_snmp.c
+++ b/zebra/zebra_snmp.c
@@ -451,6 +451,10 @@
static struct in_addr netmask;
struct nexthop *nexthop;
+ if (smux_header_table(v, objid, objid_len, exact, val_len, write_method)
+ == MATCH_FAILED)
+ return NULL;
+
get_fwtable_route_node(v, objid, objid_len, exact, &np, &rib);
if (!np)
return NULL;
@@ -549,6 +553,10 @@
ipCidrTable (struct variable *v, oid objid[], size_t *objid_len,
int exact, size_t *val_len, WriteMethod **write_method)
{
+ if (smux_header_table(v, objid, objid_len, exact, val_len, write_method)
+ == MATCH_FAILED)
+ return NULL;
+
switch (v->magic)
{
case IPCIDRROUTEDEST: