1 files changed, 165 insertions, 0 deletions
diff --git a/agent/mibgroup/mibII/vacm_context.c b/agent/mibgroup/mibII/vacm_context.c
new file mode 100644
index 0000000..8f43cd3
--- /dev/null
+++ b/agent/mibgroup/mibII/vacm_context.c
@@ -0,0 +1,165 @@
+#include <net-snmp/net-snmp-config.h>
+
+#if HAVE_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
+
+#include <net-snmp/net-snmp-includes.h>
+#include <net-snmp/agent/net-snmp-agent-includes.h>
+#include <net-snmp/agent/table.h>
+#include <net-snmp/agent/table_iterator.h>
+
+#include "vacm_context.h"
+
+static oid      vacm_context_oid[] = { 1, 3, 6, 1, 6, 3, 16, 1, 1 };
+
+#define CONTEXTNAME_COLUMN 1
+
+/*
+ * return the index data from the first node in the agent's
+ * subtree_context_cache list.
+ */
+netsnmp_variable_list *
+get_first_context(void **my_loop_context, void **my_data_context,
+                  netsnmp_variable_list * put_data,
+                  netsnmp_iterator_info *iinfo)
+{
+    subtree_context_cache *context_ptr;
+    context_ptr = get_top_context_cache();
+
+    if (!context_ptr)
+        return NULL;
+
+    *my_loop_context = context_ptr;
+    *my_data_context = context_ptr;
+
+    snmp_set_var_value(put_data, context_ptr->context_name,
+                       strlen(context_ptr->context_name));
+    return put_data;
+}
+
+/*
+ * return the next index data from the first node in the agent's
+ * subtree_context_cache list.
+ */
+netsnmp_variable_list *
+get_next_context(void **my_loop_context,
+                 void **my_data_context,
+                 netsnmp_variable_list * put_data,
+                 netsnmp_iterator_info *iinfo)
+{
+    subtree_context_cache *context_ptr;
+
+    if (!my_loop_context || !*my_loop_context)
+        return NULL;
+
+    context_ptr = (subtree_context_cache *) (*my_loop_context);
+    context_ptr = context_ptr->next;
+    *my_loop_context = context_ptr;
+    *my_data_context = context_ptr;
+
+    if (!context_ptr)
+        return NULL;
+
+    snmp_set_var_value(put_data, context_ptr->context_name,
+                       strlen(context_ptr->context_name));
+    return put_data;
+}
+
+void
+init_vacm_context(void)
+{
+    /*
+     * table vacm_context
+     */
+    netsnmp_handler_registration *my_handler;
+    netsnmp_table_registration_info *table_info;
+    netsnmp_iterator_info *iinfo;
+
+    my_handler = netsnmp_create_handler_registration("vacm_context",
+                                                     vacm_context_handler,
+                                                     vacm_context_oid,
+                                                     sizeof
+                                                     (vacm_context_oid) /
+                                                     sizeof(oid),
+                                                     HANDLER_CAN_RONLY);
+
+    if (!my_handler)
+        return;
+
+    table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
+    iinfo = SNMP_MALLOC_TYPEDEF(netsnmp_iterator_info);
+
+    if (!table_info || !iinfo) {
+        SNMP_FREE(table_info);
+        SNMP_FREE(iinfo);
+        SNMP_FREE(my_handler);
+        return;
+    }
+
+    netsnmp_table_helper_add_index(table_info, ASN_OCTET_STR)
+        table_info->min_column = 1;
+    table_info->max_column = 1;
+    iinfo->get_first_data_point = get_first_context;
+    iinfo->get_next_data_point = get_next_context;
+    iinfo->table_reginfo = table_info;
+    netsnmp_register_table_iterator2(my_handler, iinfo);
+}
+
+/*
+ * returns a list of known context names
+ */
+
+int
+vacm_context_handler(netsnmp_mib_handler *handler,
+                     netsnmp_handler_registration *reginfo,
+                     netsnmp_agent_request_info *reqinfo,
+                     netsnmp_request_info *requests)
+{
+    subtree_context_cache *context_ptr;
+
+    for(; requests; requests = requests->next) {
+        netsnmp_variable_list *var = requests->requestvb;
+
+        if (requests->processed != 0)
+            continue;
+
+
+        context_ptr = (subtree_context_cache *)
+            netsnmp_extract_iterator_context(requests);
+
+        if (context_ptr == NULL) {
+            snmp_log(LOG_ERR,
+                     "vacm_context_handler called without data\n");
+            continue;
+        }
+
+        switch (reqinfo->mode) {
+        case MODE_GET:
+            /*
+             * if here we should have a context_ptr passed in already 
+             */
+            /*
+             * only one column should ever reach us, so don't check it 
+             */
+            snmp_set_var_typed_value(var, ASN_OCTET_STR,
+                                     context_ptr->context_name,
+                                     strlen(context_ptr->context_name));
+
+            break;
+        default:
+            /*
+             * We should never get here, getnext already have been
+             * handled by the table_iterator and we're read_only 
+             */
+            snmp_log(LOG_ERR,
+                     "vacm_context table accessed as mode=%d.  We're improperly registered!",
+                     reqinfo->mode);
+            break;
+        }
+    }
+
+    return SNMP_ERR_NOERROR;
+}