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authorStef Walter <stef@memberwebs.com>2006-01-27 21:36:35 +0000
committerStef Walter <stef@memberwebs.com>2006-01-27 21:36:35 +0000
commitcadd830e5aca1f208541ea6d38da5b4a863db5cc (patch)
tree597b1bd012ddd2fb1950b4bdc84c17b69ed37e2c /mib/parse-compat.inc.c
parent36f86d822d09ec0d91839ee68178d8602e1970e2 (diff)
Added textual MIB parsing support. See #45
Diffstat (limited to 'mib/parse-compat.inc.c')
-rw-r--r--mib/parse-compat.inc.c241
1 files changed, 241 insertions, 0 deletions
diff --git a/mib/parse-compat.inc.c b/mib/parse-compat.inc.c
new file mode 100644
index 0000000..c520c7a
--- /dev/null
+++ b/mib/parse-compat.inc.c
@@ -0,0 +1,241 @@
+/*
+ * Copyright (c) 2005, Nate Nielsen
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the
+ * following disclaimer.
+ * * Redistributions in binary form must reproduce the
+ * above copyright notice, this list of conditions and
+ * the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ * * The names of contributors to this software may not be
+ * used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ *
+ * CONTRIBUTORS
+ * Nate Nielsen <nielsen@memberwebs.com>
+ *
+ */
+
+/*
+ * This file is not compiled on it's own. It's included into parse.c
+ * and provides compatibility definitions for making it work without
+ * the rest of net-snmp
+ */
+
+#include "usuals.h"
+#include "rrdbotd.h"
+
+static int with_warnings = 0;
+static int initialized = 0;
+
+/* -----------------------------------------------------------------------------
+ * DEFINITIONS
+ */
+
+#define FALSE 0
+#define TRUE 1
+
+/* No need to implement these */
+#define DEBUGMSGTL
+#define set_function(tp)
+
+/* Just return the tree head */
+#define get_tree_head() \
+ (tree_head)
+
+#define snmp_get_do_debugging() (0)
+
+typedef u_long oid;
+
+#define NETSNMP_DS_LIBRARY_ID 0
+#define NETSNMP_DS_LIB_MIB_WARNINGS 1
+#define NETSNMP_DS_LIB_MIB_REPLACE 2
+#define NETSNMP_DS_LIB_SAVE_MIB_DESCRS 3
+#define NETSNMP_DS_LIB_MIB_ERRORS 4
+#define NETSNMP_DS_LIB_MIB_PARSE_LABEL 5
+#define NETSNMP_DS_LIB_MIB_COMMENT_TERM 6
+
+#define netsnmp_ds_get_boolean(d, v) \
+ netsnmp_ds_get_int(d, v)
+
+static int
+netsnmp_ds_get_int(int dummy, int var)
+{
+ switch(var)
+ {
+ case NETSNMP_DS_LIB_MIB_WARNINGS:
+ return with_warnings;
+ case NETSNMP_DS_LIB_MIB_REPLACE:
+ return 0;
+ case NETSNMP_DS_LIB_SAVE_MIB_DESCRS:
+ return 0;
+ case NETSNMP_DS_LIB_MIB_PARSE_LABEL:
+ return 1;
+ case NETSNMP_DS_LIB_MIB_COMMENT_TERM:
+ return 0;
+ default:
+ return 0;
+ }
+}
+
+#define netsnmp_ds_set_int(a, b, c)
+#define netsnmp_ds_set_boolean(a, b, c)
+#define netsnmp_ds_toggle_boolean(a, b)
+
+static int
+snmp_log(int level, const char* msg, ...)
+{
+ va_list ap;
+
+ if(level >= LOG_WARNING && !with_warnings)
+ return;
+
+ va_start(ap, msg);
+ rb_vmessage(level, 0, msg, ap);
+ va_end(ap);
+}
+
+/* Only used to open files */
+static int
+snmp_log_perror(const char* file)
+{
+ rb_message(LOG_ERR, "couldn't open file: %s", file);
+}
+
+#define SNMP_FREE(s) do { if (s) { free((void *)s); s=NULL; } } while(0)
+
+/* -----------------------------------------------------------------------------
+ * RRDBOT GLUE CODE
+ */
+
+static void
+clear_tree_flags(struct tree *tp)
+{
+ for( ; tp; tp = tp->next_peer)
+ {
+ tp->reported = 0;
+ if(tp->child_list)
+ clear_tree_flags(tp->child_list);
+ }
+}
+
+void
+rb_mib_init(int warnings)
+{
+ if(initialized)
+ return;
+
+ with_warnings = warnings;
+
+ init_mib_internals();
+ add_mibdir("/usr/share/snmp/mibs");
+ read_all_mibs();
+
+ rb_messagex(LOG_DEBUG, "loaded all MIB files");
+ initialized = 1;
+}
+
+mib_node
+rb_mib_lookup(const char* match)
+{
+ extern struct tree *tree_head;
+ struct tree* mib;
+
+ ASSERT(initialized);
+
+ clear_tree_flags(tree_head);
+ mib = find_best_tree_node(match, NULL, NULL);
+ return (mib_node)mib;
+}
+
+int
+rb_mib_subid(mib_node n, const char* name)
+{
+ struct tree *parent = (struct tree*)n;
+ struct tree *tp = NULL;
+
+ ASSERT(initialized);
+
+ for(tp = parent->child_list; tp; tp = tp->next_peer)
+ {
+ if(strcasecmp(name, tp->label) == 0)
+ return tp->subid;
+ }
+
+ return -1;
+}
+
+void
+rb_mib_oid(mib_node n, struct asn_oid* oid)
+{
+ struct tree* mib = (struct tree*)n;
+ struct tree *tp = NULL;
+ int len;
+
+ ASSERT(mib);
+
+ /* Figure out where to start */
+ len = 0;
+ for(tp = mib; tp; tp = tp->parent)
+ len++;
+
+ oid->len = len;
+ for(tp = mib; tp; tp = tp->parent)
+ oid->subs[--len] = tp->subid;
+}
+
+mib_node
+rb_mib_node(struct asn_oid* oid)
+{
+ extern struct tree *tree_head;
+ struct tree *tp = NULL;
+ asn_subid_t subid;
+ int i;
+
+ ASSERT(initialized);
+
+ for(i = 0, tp = tree_head; tp && i < oid->len;
+ i++, tp = tp ? tp->child_list : NULL)
+ {
+ subid = oid->subs[i];
+
+ while(tp && tp->subid != subid)
+ tp = tp->next_peer;
+
+ /* Did we find a match? */
+ if(tp && i == oid->len - 1)
+ break;
+ }
+
+ return tp;
+}
+
+void
+rb_mib_uninit()
+{
+ if(initialized) {
+ unload_all_mibs();
+ rb_messagex(LOG_DEBUG, "unloaded all MIB files");
+ }
+ initialized = 0;
+}