From: Eric leblond <eric@xxxxxx>
This module is a generic module which is used to convert an IP from internal
representation to string representation. This is a task needed by several modules
like printpkt or pgsql. This module factorizes the code.
Signed-off-by: Eric leblond <eric@xxxxxx>
---
:100644 100644 b3207f9... 94a14cd... M filter/Makefile.am
:000000 100644 0000000... 68a4ed7... A filter/ulogd_filter_IP2STR.c
filter/Makefile.am | 6 +-
filter/ulogd_filter_IP2STR.c | 198 ++++++++++++++++++++++++++++++++++++++++++
2 files changed, 203 insertions(+), 1 deletions(-)
diff --git a/filter/Makefile.am b/filter/Makefile.am
index b3207f9..94a14cd 100644
--- a/filter/Makefile.am
+++ b/filter/Makefile.am
@@ -5,7 +5,8 @@ INCLUDES = $(all_includes) -I$(top_srcdir)/include
noinst_HEADERS = rtnl.h iftable.h
pkglib_LTLIBRARIES = ulogd_filter_IFINDEX.la ulogd_filter_PWSNIFF.la \
- ulogd_filter_PRINTPKT.la ulogd_filter_PRINTFLOW.la
+ ulogd_filter_PRINTPKT.la ulogd_filter_PRINTFLOW.la \
+ ulogd_filter_IP2STR.la
ulogd_filter_IFINDEX_la_SOURCES = ulogd_filter_IFINDEX.c rtnl.c iftable.c
ulogd_filter_IFINDEX_la_LDFLAGS = -module
@@ -13,6 +14,9 @@ ulogd_filter_IFINDEX_la_LDFLAGS = -module
ulogd_filter_PWSNIFF_la_SOURCES = ulogd_filter_PWSNIFF.c
ulogd_filter_PWSNIFF_la_LDFLAGS = -module
+ulogd_filter_IP2STR_la_SOURCES = ulogd_filter_IP2STR.c
+ulogd_filter_IP2STR_la_LDFLAGS = -module
+
ulogd_filter_PRINTPKT_la_SOURCES = ulogd_filter_PRINTPKT.c ../util/printpkt.c
ulogd_filter_PRINTPKT_la_LDFLAGS = -module
diff --git a/filter/ulogd_filter_IP2STR.c b/filter/ulogd_filter_IP2STR.c
new file mode 100644
index 0000000..68a4ed7
--- /dev/null
+++ b/filter/ulogd_filter_IP2STR.c
@@ -0,0 +1,198 @@
+/* ulogd_filter_IP2STR.c, Version $Revision: 1500 $
+ *
+ * ulogd interpreter plugin for ifindex to ifname conversion
+ *
+ * (C) 2008 by Eric Leblond <eric@xxxxxx>
+ *
+ * Based on ulogd_filter_IFINDEX.c Harald Welte <laforge@xxxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * $Id: ulogd_filter_IFINDEX.c 1500 2005-10-03 16:54:02Z laforge $
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <arpa/inet.h>
+#include <ulogd/ulogd.h>
+
+#define IPADDR_LENGTH 128
+
+enum input_keys {
+ KEY_OOB_FAMILY,
+ KEY_IP_SADDR,
+ START_KEY = KEY_IP_SADDR,
+ KEY_IP_DADDR,
+ KEY_ORIG_IP_SADDR,
+ KEY_ORIG_IP_DADDR,
+ KEY_REPLY_IP_SADDR,
+ KEY_REPLY_IP_DADDR,
+ MAX_KEY = KEY_REPLY_IP_DADDR,
+};
+
+static struct ulogd_key ip2str_inp[] = {
+ [KEY_OOB_FAMILY] = {
+ .type = ULOGD_RET_UINT8,
+ .flags = ULOGD_RETF_NONE,
+ .name = "oob.family",
+ },
+ [KEY_IP_SADDR] = {
+ .type = ULOGD_RET_IPADDR,
+ .flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
+ .name = "ip.saddr",
+ },
+ [KEY_IP_DADDR] = {
+ .type = ULOGD_RET_IPADDR,
+ .flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
+ .name = "ip.daddr",
+ },
+ [KEY_ORIG_IP_SADDR] = {
+ .type = ULOGD_RET_IPADDR,
+ .flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
+ .name = "orig.ip.saddr",
+ },
+ [KEY_ORIG_IP_DADDR] = {
+ .type = ULOGD_RET_IPADDR,
+ .flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
+ .name = "orig.ip.daddr",
+ },
+ [KEY_REPLY_IP_SADDR] = {
+ .type = ULOGD_RET_IPADDR,
+ .flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
+ .name = "reply.ip.saddr",
+ },
+ [KEY_REPLY_IP_DADDR] = {
+ .type = ULOGD_RET_IPADDR,
+ .flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
+ .name = "reply.ip.daddr",
+ },
+};
+
+static struct ulogd_key ip2str_keys[] = {
+ {
+ .type = ULOGD_RET_STRING,
+ .flags = ULOGD_RETF_FREE,
+ .name = "ip.saddr.str",
+ },
+ {
+ .type = ULOGD_RET_STRING,
+ .flags = ULOGD_RETF_FREE,
+ .name = "ip.daddr.str",
+ },
+ {
+ .type = ULOGD_RET_STRING,
+ .flags = ULOGD_RETF_FREE,
+ .name = "orig.ip.saddr.str",
+ },
+ {
+ .type = ULOGD_RET_STRING,
+ .flags = ULOGD_RETF_FREE,
+ .name = "orig.ip.daddr.str",
+ },
+ {
+ .type = ULOGD_RET_STRING,
+ .flags = ULOGD_RETF_FREE,
+ .name = "reply.ip.saddr.str",
+ },
+ {
+ .type = ULOGD_RET_STRING,
+ .flags = ULOGD_RETF_FREE,
+ .name = "reply.ip.daddr.str",
+ },
+
+};
+
+#define GET_VALUE(res, x) (res[x].u.source->u.value)
+#define GET_FLAGS(res, x) (res[x].u.source->flags)
+#define pp_is_valid(res, x) (res[x].u.source && (GET_FLAGS(res, x) & ULOGD_RETF_VALID))
+
+
+static char *ip2str(struct ulogd_key* inp, int index, char family)
+{
+ char tmp[IPADDR_LENGTH];
+ switch (family) {
+ case AF_INET6:
+ inet_ntop(AF_INET6,
+ &GET_VALUE(inp, index).ptr,
+ tmp, sizeof(tmp));
+ break;
+ case AF_INET:
+ inet_ntop(AF_INET,
+ &GET_VALUE(inp, index).ui32,
+ tmp, sizeof(tmp));
+ break;
+ default:
+ /* TODO error handling */
+ ulogd_log(ULOGD_NOTICE, "Unknown protocol family\n");
+ return NULL;
+ }
+ return strdup(tmp);
+}
+
+static int interp_ip2str(struct ulogd_pluginstance *pi)
+{
+ struct ulogd_key *ret = pi->output.keys;
+ struct ulogd_key *inp = pi->input.keys;
+ int i;
+ int oob_family = GET_VALUE(inp, KEY_OOB_FAMILY).ui8;
+
+ /* Iter on all addr fields */
+ for(i = START_KEY; i < MAX_KEY; i++) {
+ if (pp_is_valid(inp, i)) {
+ ret[i-1].u.value.ptr = ip2str(inp, i,
+ oob_family);
+ ret[i-1].flags |= ULOGD_RETF_VALID;
+ }
+ }
+
+ return 0;
+}
+
+static int ip2str_start(struct ulogd_pluginstance *upi)
+{
+ return 0;
+}
+
+static int ip2str_fini(struct ulogd_pluginstance *upi)
+{
+ return 0;
+}
+
+static struct ulogd_plugin ifindex_plugin = {
+ .name = "IP2STR",
+ .input = {
+ .keys = ip2str_inp,
+ .num_keys = ARRAY_SIZE(ip2str_inp),
+ .type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
+ },
+ .output = {
+ .keys = ip2str_keys,
+ .num_keys = ARRAY_SIZE(ip2str_keys),
+ .type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
+ },
+ .interp = &interp_ip2str,
+
+ .start = &ip2str_start,
+ .stop = &ip2str_fini,
+ .version = ULOGD_VERSION,
+};
+
+void __attribute__ ((constructor)) init(void);
+
+void init(void)
+{
+ ulogd_register_plugin(&ifindex_plugin);
+}
--
1.5.2.5
-
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