Initial import

y

15 files changed, 478 insertions, 0 deletions

diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..0cc01a2
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1 @@
+nielsen@memberwebs.com
\ No newline at end of file
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..cf2037b
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,14 @@
+LICENSE
+This software is in the public domain.
+
+The software is provided "as is", without warranty of any kind,
+express or implied, including but not limited to the warranties
+of merchantability, fitness for a particular purpose, and
+noninfringement. In no event shall the author(s) be liable for any
+claim, damages, or other liability, whether in an action of
+contract, tort, or otherwise, arising from, out of, or in connection
+with the software or the use or other dealings in the software.
+
+SUPPORT
+Send bug reports to: <nielsen@memberwebs.com>
+
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/ChangeLog
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..941939e
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,4 @@
+# EXTRA_DIST = BUGS
+SUBDIRS = src
+
+
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..c7ab92a
--- /dev/null
+++ b/NEWS
@@ -0,0 +1 @@
+See ChangeLog
\ No newline at end of file
diff --git a/README b/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/README
diff --git a/configure.in b/configure.in
new file mode 100644
index 0000000..fb24345
--- /dev/null
+++ b/configure.in
@@ -0,0 +1,42 @@
+# Process this file with autoconf to produce a configure script.
+AC_INIT(bsnmp-regex, 0.1, nielsen@memberwebs.com)
+AM_INIT_AUTOMAKE(bsnmp-regex, 0.1)
+
+AC_CONFIG_SRCDIR([src/bsnmp-regex.c])
+AM_CONFIG_HEADER([config.h])
+
+# Checks for programs.
+AC_PROG_CC
+AC_PROG_INSTALL
+AC_PROG_LIBTOOL
+
+# Debug mode
+AC_ARG_ENABLE(debug, 
+        AC_HELP_STRING([--enable-debug],
+        [Compile binaries in debug mode]))
+
+if test "$enable_debug" = "yes"; then
+  CFLAGS="$CFLAGS -g -O0 -Wall"
+  AC_DEFINE_UNQUOTED(_DEBUG, 1, [In debug mode])
+  echo "enabling debug compile mode"
+fi
+
+# Some checks for BSNMP libraries
+AC_CHECK_LIB(bsnmp, snmp_close, , 
+    [echo "Couldn't find the bsnmp module library"; exit 1])
+
+# Checks for header files.
+AC_HEADER_STDC
+dnl AC_CHECK_HEADERS()
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_C_CONST
+AC_TYPE_SIZE_T
+
+# Checks for library functions.
+AC_FUNC_MALLOC
+AC_FUNC_MEMCMP
+dnl TODO AC_CHECK_FUNCS([atexit inet_ntoa inet_pton memset strerror strspn strtol])
+
+AC_CONFIG_FILES([Makefile src/Makefile])
+AC_OUTPUT
diff --git a/src/.deps/bsnmp-regex.Po b/src/.deps/bsnmp-regex.Po
new file mode 100644
index 0000000..6d1d5f1
--- /dev/null
+++ b/src/.deps/bsnmp-regex.Po
@@ -0,0 +1,93 @@
+bsnmp-regex.o bsnmp-regex.o: bsnmp-regex.c usuals.h \
+  /usr/include/sys/types.h /usr/include/sys/cdefs.h \
+  /usr/include/machine/endian.h /usr/include/sys/_types.h \
+  /usr/include/machine/_types.h /usr/include/sys/_pthreadtypes.h \
+  /usr/include/sys/select.h /usr/include/sys/_sigset.h \
+  /usr/include/sys/_timeval.h /usr/include/sys/timespec.h ../config.h \
+  /usr/include/errno.h /usr/include/stdint.h \
+  /usr/include/machine/_stdint.h /usr/include/stdio.h \
+  /usr/include/sys/_null.h /usr/include/stdlib.h /usr/include/string.h \
+  /usr/include/strings.h /usr/include/sys/queue.h /usr/include/syslog.h \
+  /usr/include/unistd.h /usr/include/sys/unistd.h \
+  /usr/include/bsnmp/snmpmod.h /usr/include/sys/socket.h \
+  /usr/include/sys/_iovec.h /usr/include/machine/param.h \
+  /usr/include/net/if.h /usr/include/sys/time.h /usr/include/time.h \
+  /usr/include/netinet/in.h /usr/include/netinet6/in6.h \
+  /usr/include/bsnmp/asn1.h /usr/include/bsnmp/snmp.h \
+  /usr/include/bsnmp/snmpagent.h regex_tree.h regex_oid.h
+
+usuals.h:
+
+/usr/include/sys/types.h:
+
+/usr/include/sys/cdefs.h:
+
+/usr/include/machine/endian.h:
+
+/usr/include/sys/_types.h:
+
+/usr/include/machine/_types.h:
+
+/usr/include/sys/_pthreadtypes.h:
+
+/usr/include/sys/select.h:
+
+/usr/include/sys/_sigset.h:
+
+/usr/include/sys/_timeval.h:
+
+/usr/include/sys/timespec.h:
+
+../config.h:
+
+/usr/include/errno.h:
+
+/usr/include/stdint.h:
+
+/usr/include/machine/_stdint.h:
+
+/usr/include/stdio.h:
+
+/usr/include/sys/_null.h:
+
+/usr/include/stdlib.h:
+
+/usr/include/string.h:
+
+/usr/include/strings.h:
+
+/usr/include/sys/queue.h:
+
+/usr/include/syslog.h:
+
+/usr/include/unistd.h:
+
+/usr/include/sys/unistd.h:
+
+/usr/include/bsnmp/snmpmod.h:
+
+/usr/include/sys/socket.h:
+
+/usr/include/sys/_iovec.h:
+
+/usr/include/machine/param.h:
+
+/usr/include/net/if.h:
+
+/usr/include/sys/time.h:
+
+/usr/include/time.h:
+
+/usr/include/netinet/in.h:
+
+/usr/include/netinet6/in6.h:
+
+/usr/include/bsnmp/asn1.h:
+
+/usr/include/bsnmp/snmp.h:
+
+/usr/include/bsnmp/snmpagent.h:
+
+regex_tree.h:
+
+regex_oid.h:
diff --git a/src/.deps/regex_tree.Po b/src/.deps/regex_tree.Po
new file mode 100644
index 0000000..eaaa64e
--- /dev/null
+++ b/src/.deps/regex_tree.Po
@@ -0,0 +1,45 @@
+regex_tree.o regex_tree.o: regex_tree.c /usr/include/sys/types.h \
+  /usr/include/sys/cdefs.h /usr/include/machine/endian.h \
+  /usr/include/sys/_types.h /usr/include/machine/_types.h \
+  /usr/include/sys/_pthreadtypes.h /usr/include/sys/select.h \
+  /usr/include/sys/_sigset.h /usr/include/sys/_timeval.h \
+  /usr/include/sys/timespec.h /usr/include/stdio.h \
+  /usr/include/sys/_null.h /usr/include/stdint.h \
+  /usr/include/machine/_stdint.h /usr/include/bsnmp/asn1.h \
+  /usr/include/bsnmp/snmp.h /usr/include/bsnmp/snmpagent.h regex_tree.h
+
+/usr/include/sys/types.h:
+
+/usr/include/sys/cdefs.h:
+
+/usr/include/machine/endian.h:
+
+/usr/include/sys/_types.h:
+
+/usr/include/machine/_types.h:
+
+/usr/include/sys/_pthreadtypes.h:
+
+/usr/include/sys/select.h:
+
+/usr/include/sys/_sigset.h:
+
+/usr/include/sys/_timeval.h:
+
+/usr/include/sys/timespec.h:
+
+/usr/include/stdio.h:
+
+/usr/include/sys/_null.h:
+
+/usr/include/stdint.h:
+
+/usr/include/machine/_stdint.h:
+
+/usr/include/bsnmp/asn1.h:
+
+/usr/include/bsnmp/snmp.h:
+
+/usr/include/bsnmp/snmpagent.h:
+
+regex_tree.h:
diff --git a/src/.deps/regextree.Po b/src/.deps/regextree.Po
new file mode 100644
index 0000000..a399d57
--- /dev/null
+++ b/src/.deps/regextree.Po
@@ -0,0 +1,45 @@
+regextree.o regextree.o: regextree.c /usr/include/sys/types.h \
+  /usr/include/sys/cdefs.h /usr/include/machine/endian.h \
+  /usr/include/sys/_types.h /usr/include/machine/_types.h \
+  /usr/include/sys/_pthreadtypes.h /usr/include/sys/select.h \
+  /usr/include/sys/_sigset.h /usr/include/sys/_timeval.h \
+  /usr/include/sys/timespec.h /usr/include/stdio.h \
+  /usr/include/sys/_null.h /usr/include/stdint.h \
+  /usr/include/machine/_stdint.h /usr/include/bsnmp/asn1.h \
+  /usr/include/bsnmp/snmp.h /usr/include/bsnmp/snmpagent.h regextree.h
+
+/usr/include/sys/types.h:
+
+/usr/include/sys/cdefs.h:
+
+/usr/include/machine/endian.h:
+
+/usr/include/sys/_types.h:
+
+/usr/include/machine/_types.h:
+
+/usr/include/sys/_pthreadtypes.h:
+
+/usr/include/sys/select.h:
+
+/usr/include/sys/_sigset.h:
+
+/usr/include/sys/_timeval.h:
+
+/usr/include/sys/timespec.h:
+
+/usr/include/stdio.h:
+
+/usr/include/sys/_null.h:
+
+/usr/include/stdint.h:
+
+/usr/include/machine/_stdint.h:
+
+/usr/include/bsnmp/asn1.h:
+
+/usr/include/bsnmp/snmp.h:
+
+/usr/include/bsnmp/snmpagent.h:
+
+regextree.h:
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..9758f1a
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,12 @@
+
+lib_LTLIBRARIES = libsnmp_regex.la
+libsnmp_regex_la_LDFLAGS =
+libsnmp_regex_la_SOURCES = regex_tree.c regex_tree.h regex_oid.h \
+                                bsnmp-regex.c
+
+regex_tree.c: regex-tree.def
+	gensnmptree -p regex_ < regex-tree.def
+	gensnmptree -e regexData > regex_oid.h < regex-tree.def
+
+CLEANFILES = regex_tree.* \
+             regex_oid.h
diff --git a/src/bsnmp-regex.c b/src/bsnmp-regex.c
new file mode 100644
index 0000000..a3a7385
--- /dev/null
+++ b/src/bsnmp-regex.c
@@ -0,0 +1,171 @@
+
+#include "usuals.h"
+
+#include <sys/queue.h>
+#include <sys/select.h>
+#include <syslog.h>
+#include <unistd.h>
+
+#include <bsnmp/snmpmod.h>
+
+#include "regex_tree.h"
+#include "regex_oid.h"
+
+/* our module handle */
+static struct lmodule *module;
+
+/* OIDs */
+static const struct asn_oid oid_regex = OIDX_regexData;
+
+/* the Object Resource registration index */
+static u_int reg_index;
+
+/* last time we've fetch the peer list */
+static uint64_t peers_tick;
+
+/* request sequence number generator */
+static uint16_t seqno;
+
+struct data_entry {
+    uint32_t                index;
+    TAILQ_ENTRY(data_entry) link;
+
+    char                    *descr;
+    uint64_t                last_update;
+    uint64_t                value;
+};
+
+TAILQ_HEAD(data_entry_list, data_entry);
+
+/* list of peers */
+static struct data_entry_list entries = TAILQ_HEAD_INITIALIZER(entries);
+static uint32_t entry_count = 0;
+
+/* the initialisation function */
+static int
+module_init(struct lmodule *mod, int argc, char *argv[])
+{
+    module = mod;
+
+    if (argc != 0) {
+        syslog(LOG_ERR, "bad number of arguments for %s", __func__);
+        return (EINVAL);
+    }
+
+    return 0;
+}
+
+/* Module is started */
+static void
+module_start(void)
+{
+    reg_index = or_register(&oid_regex, "The MIB for regex data.", module);
+}
+
+/* Called, when the module is to be unloaded after it was successfully loaded */
+static int
+module_fini(void)
+{
+    or_unregister(reg_index);
+    return 0;
+}
+
+const struct snmp_module config = {
+    .comment =      "This module implements SNMP listing of data from regular expressions",
+    .init =         module_init,
+    .start =        module_start,
+    .fini =         module_fini,
+    .tree =         regex_ctree,
+    .tree_size =    regex_CTREE_SIZE,
+};
+
+/* System variables - read-only scalars only. */
+int
+op_data (struct snmp_context *ctx, struct snmp_value *value,
+         u_int sub, u_int iidx, enum snmp_op op)
+{
+    asn_subid_t which = value->var.subs[sub - 1];
+
+    switch (op) {
+    case SNMP_OP_GET:
+        break;
+
+    case SNMP_OP_SET:
+        return SNMP_ERR_NOT_WRITEABLE;
+
+    default:
+        ASSERT(0);
+        break;
+    }
+
+    switch (which) {
+    case LEAF_dataCount:
+        value->v.integer = entry_count;
+        break;
+
+    default:
+        ASSERT(0);
+        break;
+    }
+
+    return SNMP_ERR_NOERROR;
+}
+
+int
+op_dataentry (struct snmp_context *ctx, struct snmp_value *value,
+             u_int sub, u_int iidx, enum snmp_op op)
+{
+    asn_subid_t which = value->var.subs[sub - 1];
+    struct data_entry *data;
+
+    switch (op) {
+    case SNMP_OP_GETNEXT:
+        data = NEXT_OBJECT_INT (&entries, &value->var, sub);
+        if (data == NULL)
+            return SNMP_ERR_NOSUCHNAME;
+        value->var.len = sub + 1;
+        value->var.subs[sub] = data->index;
+        break;
+
+    case SNMP_OP_GET:
+        data = FIND_OBJECT_INT (&entries, &value->var, sub);
+        if (data == NULL)
+            return SNMP_ERR_NOSUCHNAME;
+        break;
+
+    case SNMP_OP_SET:
+        if (index_decode (&value->var, sub, iidx, &data))
+            return SNMP_ERR_NO_CREATION;
+        data = FIND_OBJECT_INT (&entries, &value->var, sub);
+        if (data != NULL)
+            return SNMP_ERR_NOT_WRITEABLE;
+        return SNMP_ERR_NO_CREATION;
+
+    default:
+        ASSERT(0);
+        break;
+    }
+
+    switch (which) {
+    case LEAF_dataIndex:
+        value->v.integer = data->index;
+        break;
+
+    case LEAF_dataDescr:
+        return (string_get (value, data->descr, -1));
+
+    case LEAF_dataLast:
+        value->v.uint32 = data->last_update;
+        break;
+
+    case LEAF_dataValue:
+        value->v.uint32 = data->value;
+        break;
+
+    default:
+        ASSERT(0);
+        break;
+    };
+
+    return SNMP_ERR_NOERROR;
+}
diff --git a/src/regex-tree.def b/src/regex-tree.def
new file mode 100644
index 0000000..8a631b9
--- /dev/null
+++ b/src/regex-tree.def
@@ -0,0 +1,15 @@
+(1 internet
+  (4 private
+    (1 enterprises
+      (10277 regexData
+        (1 dataCount INTEGER op_data GET)
+        (2 dataEntry : INTEGER op_dataentry
+          (1 dataIndex INTEGER GET)
+          (2 dataDescr OCTETSTRING GET)
+          (3 dataLast TIMETICKS GET)
+          (4 dataValue INTEGER GET)
+        )
+      )
+    )
+  )
+)
diff --git a/src/regex_oid.h b/src/regex_oid.h
new file mode 100644
index 0000000..221f029
--- /dev/null
+++ b/src/regex_oid.h
@@ -0,0 +1,3 @@
+#define OID_regexData	10277
+#define OIDLEN_regexData	7
+#define OIDX_regexData	{ 7, { 1, 3, 6, 1, 4, 1, 10277, } }
diff --git a/src/usuals.h b/src/usuals.h
new file mode 100644
index 0000000..6dc7b08
--- /dev/null
+++ b/src/usuals.h
@@ -0,0 +1,32 @@
+
+#ifndef __USUALS_H__
+#define __USUALS_H__
+
+#include <sys/types.h>
+
+#include "config.h"
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef max
+#define max(a,b)  (((a) > (b)) ? (a) : (b))
+#endif
+
+#ifndef min
+#define min(a,b)  (((a) < (b)) ? (a) : (b))
+#endif
+
+#define countof(x) (sizeof(x) / sizeof(x[0]))
+
+#ifdef _DEBUG
+  #include "assert.h"
+  #define ASSERT(x) assert(x)
+#else
+  #define ASSERT(x)
+#endif
+
+#endif /* __USUALS_H__ */