On Mon, 18 Oct 2010 19:21:21 +0200 Niels wrote:
NB> But not any more backwards than the network address 007AA8C0 ...
NB>
NB> So I still wonder why it is treated different from the network address.
NB> What does that look like on the PPC?
True. I poked around in the source and the debugger. The big difference is
that for some reason we store the address/dest as char buffers, but the mask
in an u_int. Following the twisty little maze, later everything is passed
around as a long, and then a memcpy is used to set the oid/value. Try this
patch, which seems to work on my 32 bit ppc and x86 boxes:
diff --git a/net-snmp/agent/mibgroup/ip-forward-mib/data_access/route_linux.c
b/net-snmp/agent/mibgroup/ip-forward-mib/data_access/route_linux.c
index 80acc3e..21ea80e 100644
--- a/net-snmp/agent/mibgroup/ip-forward-mib/data_access/route_linux.c
+++ b/net-snmp/agent/mibgroup/ip-forward-mib/data_access/route_linux.c
@@ -72,7 +72,7 @@ _load_ipv4(netsnmp_container* container, u_long *index )
while (fgets(line, sizeof(line), in)) {
char rtent_name[32];
int refcnt, rc;
- uint32_t dest, nexthop, mask, tmp_mask;
+ uint32_t dest, nexthop, mask;
unsigned flags, use;
entry = netsnmp_access_route_entry_create();
@@ -89,7 +89,7 @@ _load_ipv4(netsnmp_container* container, u_long *index )
* XXX: fix type of the args
*/
&flags, &refcnt, &use, &entry->rt_metric1,
- &tmp_mask);
+ &mask);
DEBUGMSGTL(("9:access:route:container", "line |%s|\n", line));
if (8 != rc) {
snmp_log(LOG_ERR,
@@ -122,10 +122,8 @@ _load_ipv4(netsnmp_container* container, u_long *index )
*/
entry->ns_rt_index = ++(*index);
- mask = htonl(tmp_mask);
-
#ifdef USING_IP_FORWARD_MIB_IPCIDRROUTETABLE_IPCIDRROUTETABLE_MODULE
- entry->rt_mask = mask;
+ memcpy(&entry->rt_mask, &mask, 4);
/** entry->rt_tos = XXX; */
/** rt info ?? */
#endif
@@ -143,6 +141,7 @@ _load_ipv4(netsnmp_container* container, u_long *index )
/*
* count bits in mask
*/
+ mask = htonl(mask);
entry->rt_pfx_len = netsnmp_ipaddress_ipv4_prefix_len(mask);
#ifdef USING_IP_FORWARD_MIB_INETCIDRROUTETABLE_INETCIDRROUTETABLE_MODULE
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