* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with GNU Zebra; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _ZEBRA_SNMP_H
#define _ZEBRA_SNMP_H
-#define SMUX_PORT_DEFAULT 199
+#include <net-snmp/agent/net-snmp-agent-includes.h>
+#include <net-snmp/agent/snmp_vars.h>
-#define SMUXMAXPKTSIZE 1500
-#define SMUXMAXSTRLEN 256
-
-#define SMUX_OPEN (ASN_APPLICATION | ASN_CONSTRUCTOR | 0)
-#define SMUX_CLOSE (ASN_APPLICATION | ASN_PRIMITIVE | 1)
-#define SMUX_RREQ (ASN_APPLICATION | ASN_CONSTRUCTOR | 2)
-#define SMUX_RRSP (ASN_APPLICATION | ASN_PRIMITIVE | 3)
-#define SMUX_SOUT (ASN_APPLICATION | ASN_PRIMITIVE | 4)
-
-#define SMUX_GET (ASN_CONTEXT | ASN_CONSTRUCTOR | 0)
-#define SMUX_GETNEXT (ASN_CONTEXT | ASN_CONSTRUCTOR | 1)
-#define SMUX_GETRSP (ASN_CONTEXT | ASN_CONSTRUCTOR | 2)
-#define SMUX_SET (ASN_CONTEXT | ASN_CONSTRUCTOR | 3)
-#define SMUX_TRAP (ASN_CONTEXT | ASN_CONSTRUCTOR | 4)
-
-#define SMUX_MAX_FAILURE 3
+#include "thread.h"
/* Structures here are mostly compatible with UCD SNMP 4.1.1 */
#define MATCH_FAILED (-1)
#define IN_ADDR_SIZE sizeof(struct in_addr)
-struct variable;
-
-#define REGISTER_MIB(descr, var, vartype, theoid) \
- smux_register_mib(descr, (struct variable *)var, sizeof(struct vartype), \
- sizeof(var)/sizeof(struct vartype), \
- theoid, sizeof(theoid)/sizeof(oid))
-
-typedef int (WriteMethod)(int action,
- u_char *var_val,
- u_char var_val_type,
- size_t var_val_len,
- u_char *statP,
- oid *name,
- size_t length,
- struct variable *v);
-
-typedef u_char *(FindVarMethod)(struct variable *v,
- oid *name,
- size_t *length,
- int exact,
- size_t *var_len,
- WriteMethod **write_method);
-
-/* SNMP variable */
-struct variable
-{
- /* Index of the MIB.*/
- u_char magic;
-
- /* Type of variable. */
- char type;
-
- /* Access control list. */
- u_short acl;
-
- /* Callback function. */
- FindVarMethod *findVar;
-
- /* Suffix of the MIB. */
- u_char namelen;
- oid name[MAX_OID_LEN];
-};
-
-/* SNMP tree. */
-struct subtree
-{
- /* Tree's oid. */
- oid name[MAX_OID_LEN];
- u_char name_len;
-
- /* List of the variables. */
- struct variable *variables;
-
- /* Length of the variables list. */
- int variables_num;
-
- /* Width of the variables list. */
- int variables_width;
-
- /* Registered flag. */
- int registered;
-};
+#undef REGISTER_MIB
+#define REGISTER_MIB(descr, var, vartype, theoid) \
+ smux_register_mib(descr, (struct variable *)var, \
+ sizeof(struct vartype), \
+ sizeof(var) / sizeof(struct vartype), theoid, \
+ sizeof(theoid) / sizeof(oid))
-struct trap_object
-{
- FindVarMethod *findVar;
- u_char namelen;
- oid name[MAX_OID_LEN];
+struct trap_object {
+ int namelen; /* Negative if the object is not indexed */
+ oid name[MAX_OID_LEN];
};
/* Declare SMUX return value. */
-#define SNMP_LOCAL_VARIABLES \
- static int32_t snmp_int_val; \
- static struct in_addr snmp_in_addr_val;
-
-#define SNMP_INTEGER(V) \
- ( \
- *var_len = sizeof (int32_t), \
- snmp_int_val = V, \
- (u_char *) &snmp_int_val \
- )
-
-#define SNMP_IPADDRESS(V) \
- ( \
- *var_len = sizeof (struct in_addr), \
- snmp_in_addr_val = V, \
- (u_char *) &snmp_in_addr_val \
- )
-
-void smux_init (struct thread_master *tm, oid [], size_t);
-void smux_start (void);
-void smux_register_mib(char *, struct variable *, size_t, int, oid [], size_t);
-int smux_header_generic (struct variable *, oid [], size_t *, int, size_t *,
- WriteMethod **);
-int smux_trap (oid *, size_t, oid *, size_t, struct trap_object *, size_t, unsigned int, u_char);
-
-int oid_compare (oid *, int, oid *, int);
-void oid2in_addr (oid [], int, struct in_addr *);
-void *oid_copy (void *, void *, size_t);
-void oid_copy_addr (oid [], struct in_addr *, int);
+#define SNMP_LOCAL_VARIABLES \
+ static long snmp_int_val __attribute__((unused)); \
+ static struct in_addr snmp_in_addr_val __attribute__((unused));
+
+#define SNMP_INTEGER(V) \
+ (*var_len = sizeof(snmp_int_val), snmp_int_val = V, \
+ (uint8_t *)&snmp_int_val)
+
+#define SNMP_IPADDRESS(V) \
+ (*var_len = sizeof(struct in_addr), snmp_in_addr_val = V, \
+ (uint8_t *)&snmp_in_addr_val)
+
+extern void smux_init(struct thread_master *tm);
+extern void smux_register_mib(const char *, struct variable *, size_t, int,
+ oid[], size_t);
+extern int smux_header_generic(struct variable *, oid[], size_t *, int,
+ size_t *, WriteMethod **);
+extern int smux_header_table(struct variable *, oid *, size_t *, int, size_t *,
+ WriteMethod **);
+
+/* For traps, three OID are provided:
+
+ 1. The enterprise OID to use (the last argument will be appended to
+ it to form the SNMP trap OID)
+
+ 2. The base OID for objects to be sent in traps.
+
+ 3. The index OID for objects to be sent in traps. This index is used
+ to designate a particular instance of a column.
+
+ The provided trap object contains the bindings to be sent with the
+ trap. The base OID will be prefixed to the provided OID and, if the
+ length is positive, the requested OID is assumed to be a columnar
+ object and the index OID will be appended.
+
+ The two first arguments are the MIB registry used to locate the trap
+ objects.
+
+ The use of the arguments may differ depending on the implementation
+ used.
+*/
+extern int smux_trap(struct variable *, size_t, const oid *, size_t,
+ const oid *, size_t, const oid *, size_t,
+ const struct trap_object *, size_t, uint8_t);
+
+extern int oid_compare(const oid *, int, const oid *, int);
+extern void oid2in_addr(oid[], int, struct in_addr *);
+extern void *oid_copy(void *, const void *, size_t);
+extern void oid_copy_addr(oid[], struct in_addr *, int);
#endif /* _ZEBRA_SNMP_H */
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