--- /dev/null
+From 4f639231c83b09ea004c03e95c702b7750bf9930 Mon Sep 17 00:00:00 2001
+From: Ander Juaristi <a@juaristi.eus>
+Date: Fri, 26 Apr 2019 09:58:06 +0200
+Subject: IPFIX: Add IPFIX output plugin
+
+This patch adds an IPFIX output plugin to ulogd2. It generates NetFlow/IPFIX
+traces and sends them to a remote server (collector) via TCP or UDP.
+
+Based on original work by Holger Eitzenberger <holger@eitzenberger.org>.
+
+How to test this
+----------------
+
+I am currently testing this with the NFCT input and Wireshark.
+
+Place the following in ulogd.conf:
+
+ # this will print all flows on screen
+ loglevel=1
+
+ # load NFCT and IPFIX plugins
+ plugin="/lib/ulogd/ulogd_inpflow_NFCT.so"
+ plugin="/lib/ulogd/ulogd_output_IPFIX.so"
+
+ stack=ct1:NFCT,ipfix1:IPFIX
+
+ [ct1]
+ netlink_socket_buffer_size=217088
+ netlink_socket_buffer_maxsize=1085440
+ accept_proto_filter=tcp,sctp
+
+ [ipfix1]
+ oid=1
+ host="127.0.0.1"
+ #port=4739
+ #send_template="once"
+
+I am currently testing it by launching a plain NetCat listener on port
+4739 (the default for IPFIX) and then running Wireshark and see that it
+dissects the IPFIX/NetFlow traffic correctly (obviously this relies on
+the Wireshark NetFlow dissector being correct).
+
+First:
+
+ nc -vvvv -l 127.0.0.1 4739
+
+Then:
+
+ sudo ulogd -vc ulogd.conf
+
+Signed-off-by: Ander Juaristi <a@juaristi.eus>
+Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
+---
+ configure.ac | 2 +-
+ include/ulogd/ulogd.h | 5 +
+ input/flow/ulogd_inpflow_IPFIX.c | 2 -
+ output/Makefile.am | 2 +-
+ output/ipfix/Makefile.am | 7 +
+ output/ipfix/ipfix.c | 141 ++++++++++
+ output/ipfix/ipfix.h | 89 +++++++
+ output/ipfix/ulogd_output_IPFIX.c | 503 +++++++++++++++++++++++++++++++++++
+ output/ulogd_output_IPFIX.c | 546 --------------------------------------
+ 9 files changed, 747 insertions(+), 550 deletions(-)
+ delete mode 100644 input/flow/ulogd_inpflow_IPFIX.c
+ create mode 100644 output/ipfix/Makefile.am
+ create mode 100644 output/ipfix/ipfix.c
+ create mode 100644 output/ipfix/ipfix.h
+ create mode 100644 output/ipfix/ulogd_output_IPFIX.c
+ delete mode 100644 output/ulogd_output_IPFIX.c
+
+diff --git a/configure.ac b/configure.ac
+index 3aa0624..48b4995 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -179,7 +179,7 @@ AC_CONFIG_FILES(include/Makefile include/ulogd/Makefile include/libipulog/Makefi
+ input/sum/Makefile \
+ filter/Makefile filter/raw2packet/Makefile filter/packet2flow/Makefile \
+ output/Makefile output/pcap/Makefile output/mysql/Makefile output/pgsql/Makefile output/sqlite3/Makefile \
+- output/dbi/Makefile \
++ output/dbi/Makefile output/ipfix/Makefile \
+ src/Makefile Makefile Rules.make)
+ AC_OUTPUT
+
+diff --git a/include/ulogd/ulogd.h b/include/ulogd/ulogd.h
+index 2e38195..1636a8c 100644
+--- a/include/ulogd/ulogd.h
++++ b/include/ulogd/ulogd.h
+@@ -28,6 +28,11 @@
+
+ /* types without length */
+ #define ULOGD_RET_NONE 0x0000
++#define __packed __attribute__((packed))
++#define __noreturn __attribute__((noreturn))
++#define __cold __attribute__((cold))
++
++#define __packed __attribute__((packed))
+
+ #define ULOGD_RET_INT8 0x0001
+ #define ULOGD_RET_INT16 0x0002
+diff --git a/output/Makefile.am b/output/Makefile.am
+index ff851ad..7ba8217 100644
+--- a/output/Makefile.am
++++ b/output/Makefile.am
+@@ -2,7 +2,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/include ${LIBNETFILTER_ACCT_CFLAGS} \
+ ${LIBNETFILTER_CONNTRACK_CFLAGS} ${LIBNETFILTER_LOG_CFLAGS}
+ AM_CFLAGS = ${regular_CFLAGS}
+
+-SUBDIRS= pcap mysql pgsql sqlite3 dbi
++SUBDIRS= pcap mysql pgsql sqlite3 dbi ipfix
+
+ pkglib_LTLIBRARIES = ulogd_output_LOGEMU.la ulogd_output_SYSLOG.la \
+ ulogd_output_OPRINT.la ulogd_output_GPRINT.la \
+diff --git a/output/ipfix/Makefile.am b/output/ipfix/Makefile.am
+new file mode 100644
+index 0000000..cacda26
+--- /dev/null
++++ b/output/ipfix/Makefile.am
+@@ -0,0 +1,7 @@
++AM_CPPFLAGS = -I$(top_srcdir)/include
++AM_CFLAGS = $(regular_CFLAGS)
++
++pkglib_LTLIBRARIES = ulogd_output_IPFIX.la
++
++ulogd_output_IPFIX_la_SOURCES = ulogd_output_IPFIX.c ipfix.c
++ulogd_output_IPFIX_la_LDFLAGS = -avoid-version -module
+diff --git a/output/ipfix/ipfix.c b/output/ipfix/ipfix.c
+new file mode 100644
+index 0000000..60a4c7f
+--- /dev/null
++++ b/output/ipfix/ipfix.c
+@@ -0,0 +1,141 @@
++/*
++ * ipfix.c
++ *
++ * Holger Eitzenberger, 2009.
++ */
++
++/* These forward declarations are needed since ulogd.h doesn't like to be the first */
++#include <ulogd/linuxlist.h>
++
++#define __packed __attribute__((packed))
++
++#include "ipfix.h"
++
++#include <ulogd/ulogd.h>
++#include <ulogd/common.h>
++
++struct ipfix_msg *ipfix_msg_alloc(size_t len, uint32_t oid)
++{
++ struct ipfix_msg *msg;
++ struct ipfix_hdr *hdr;
++
++ if (len < IPFIX_HDRLEN + IPFIX_SET_HDRLEN)
++ return NULL;
++
++ msg = malloc(sizeof(struct ipfix_msg) + len);
++ memset(msg, 0, sizeof(struct ipfix_msg));
++ msg->tail = msg->data + IPFIX_HDRLEN;
++ msg->end = msg->data + len;
++
++ hdr = ipfix_msg_hdr(msg);
++ memset(hdr, 0, IPFIX_HDRLEN);
++ hdr->version = htons(IPFIX_VERSION);
++ hdr->oid = htonl(oid);
++
++ return msg;
++}
++
++void ipfix_msg_free(struct ipfix_msg *msg)
++{
++ if (!msg)
++ return;
++
++ if (msg->nrecs > 0)
++ ulogd_log(ULOGD_DEBUG, "%s: %d flows have been lost\n", __func__,
++ msg->nrecs);
++
++ free(msg);
++}
++
++struct ipfix_hdr *ipfix_msg_hdr(const struct ipfix_msg *msg)
++{
++ return (struct ipfix_hdr *)msg->data;
++}
++
++void *ipfix_msg_data(struct ipfix_msg *msg)
++{
++ return msg->data;
++}
++
++size_t ipfix_msg_len(const struct ipfix_msg *msg)
++{
++ return msg->tail - msg->data;
++}
++
++struct ipfix_set_hdr *ipfix_msg_add_set(struct ipfix_msg *msg, uint16_t sid)
++{
++ struct ipfix_set_hdr *shdr;
++
++ if (msg->end - msg->tail < (int) IPFIX_SET_HDRLEN)
++ return NULL;
++
++ shdr = (struct ipfix_set_hdr *)msg->tail;
++ shdr->id = sid;
++ shdr->len = IPFIX_SET_HDRLEN;
++ msg->tail += IPFIX_SET_HDRLEN;
++ msg->last_set = shdr;
++ return shdr;
++}
++
++struct ipfix_set_hdr *ipfix_msg_get_set(const struct ipfix_msg *msg)
++{
++ return msg->last_set;
++}
++
++/**
++ * Add data record to an IPFIX message. The data is accounted properly.
++ *
++ * @return pointer to data or %NULL if not that much space left.
++ */
++void *ipfix_msg_add_data(struct ipfix_msg *msg, size_t len)
++{
++ void *data;
++
++ if (!msg->last_set) {
++ ulogd_log(ULOGD_FATAL, "msg->last_set is NULL\n");
++ return NULL;
++ }
++
++ if ((ssize_t) len > msg->end - msg->tail)
++ return NULL;
++
++ data = msg->tail;
++ msg->tail += len;
++ msg->nrecs++;
++ msg->last_set->len += len;
++
++ return data;
++}
++
++/* check and dump message */
++int ipfix_dump_msg(const struct ipfix_msg *msg)
++{
++ const struct ipfix_hdr *hdr = ipfix_msg_hdr(msg);
++ const struct ipfix_set_hdr *shdr = (struct ipfix_set_hdr *) hdr->data;
++
++ if (ntohs(hdr->len) < IPFIX_HDRLEN) {
++ ulogd_log(ULOGD_FATAL, "Invalid IPFIX message header length\n");
++ return -1;
++ }
++ if (ipfix_msg_len(msg) != IPFIX_HDRLEN + ntohs(shdr->len)) {
++ ulogd_log(ULOGD_FATAL, "Invalid IPFIX message length\n");
++ return -1;
++ }
++
++ ulogd_log(ULOGD_DEBUG, "msg: ver=%#x len=%#x t=%#x seq=%#x oid=%d\n",
++ ntohs(hdr->version), ntohs(hdr->len), htonl(hdr->time),
++ ntohl(hdr->seqno), ntohl(hdr->oid));
++
++ return 0;
++}
++
++/* template management */
++size_t ipfix_rec_len(uint16_t sid)
++{
++ if (sid != htons(VY_IPFIX_SID)) {
++ ulogd_log(ULOGD_FATAL, "Invalid SID\n");
++ return 0;
++ }
++
++ return sizeof(struct vy_ipfix_data);
++}
+diff --git a/output/ipfix/ipfix.h b/output/ipfix/ipfix.h
+new file mode 100644
+index 0000000..cdb5a6f
+--- /dev/null
++++ b/output/ipfix/ipfix.h
+@@ -0,0 +1,89 @@
++/*
++ * ipfix.h
++ *
++ * Holger Eitzenberger <holger@eitzenberger.org>, 2009.
++ */
++#ifndef IPFIX_H
++#define IPFIX_H
++
++#include <stdint.h>
++#include <netinet/in.h>
++
++
++struct ipfix_hdr {
++#define IPFIX_VERSION 0xa
++ uint16_t version;
++ uint16_t len;
++ uint32_t time;
++ uint32_t seqno;
++ uint32_t oid; /* Observation Domain ID */
++ uint8_t data[];
++} __packed;
++
++#define IPFIX_HDRLEN sizeof(struct ipfix_hdr)
++
++/*
++ * IDs 0-255 are reserved for Template Sets. IDs of Data Sets are > 255.
++ */
++struct ipfix_templ_hdr {
++ uint16_t id;
++ uint16_t cnt;
++ uint8_t data[];
++} __packed;
++
++struct ipfix_set_hdr {
++#define IPFIX_SET_TEMPL 2
++#define IPFIX_SET_OPT_TEMPL 3
++ uint16_t id;
++ uint16_t len;
++ uint8_t data[];
++} __packed;
++
++#define IPFIX_SET_HDRLEN sizeof(struct ipfix_set_hdr)
++
++struct ipfix_msg {
++ struct llist_head link;
++ uint8_t *tail;
++ uint8_t *end;
++ unsigned nrecs;
++ struct ipfix_set_hdr *last_set;
++ uint8_t data[];
++};
++
++struct vy_ipfix_data {
++ struct in_addr saddr;
++ struct in_addr daddr;
++ uint16_t ifi_in;
++ uint16_t ifi_out;
++ uint32_t packets;
++ uint32_t bytes;
++ uint32_t start; /* Unix time */
++ uint32_t end; /* Unix time */
++ uint16_t sport;
++ uint16_t dport;
++ uint32_t aid; /* Application ID */
++ uint8_t l4_proto;
++ uint8_t dscp;
++ uint16_t __padding;
++} __packed;
++
++#define VY_IPFIX_SID 256
++
++#define VY_IPFIX_FLOWS 36
++#define VY_IPFIX_PKT_LEN (IPFIX_HDRLEN + IPFIX_SET_HDRLEN \
++ + VY_IPFIX_FLOWS * sizeof(struct vy_ipfix_data))
++
++/* template management */
++size_t ipfix_rec_len(uint16_t);
++
++/* message handling */
++struct ipfix_msg *ipfix_msg_alloc(size_t, uint32_t);
++void ipfix_msg_free(struct ipfix_msg *);
++struct ipfix_hdr *ipfix_msg_hdr(const struct ipfix_msg *);
++size_t ipfix_msg_len(const struct ipfix_msg *);
++void *ipfix_msg_data(struct ipfix_msg *);
++struct ipfix_set_hdr *ipfix_msg_add_set(struct ipfix_msg *, uint16_t);
++void *ipfix_msg_add_data(struct ipfix_msg *, size_t);
++int ipfix_dump_msg(const struct ipfix_msg *);
++
++#endif /* IPFIX_H */
+diff --git a/output/ipfix/ulogd_output_IPFIX.c b/output/ipfix/ulogd_output_IPFIX.c
+new file mode 100644
+index 0000000..ec143b1
+--- /dev/null
++++ b/output/ipfix/ulogd_output_IPFIX.c
+@@ -0,0 +1,503 @@
++/*
++ * ulogd_output_IPFIX.c
++ *
++ * ulogd IPFIX Exporter plugin.
++ *
++ * 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
++ *
++ * Holger Eitzenberger <holger@eitzenberger.org> Astaro AG 2009
++ */
++#include <unistd.h>
++#include <time.h>
++#include <sys/types.h>
++#include <sys/socket.h>
++#include <arpa/inet.h>
++#include <netdb.h>
++#include <ulogd/ulogd.h>
++#include <ulogd/common.h>
++
++#include "ipfix.h"
++
++#define DEFAULT_MTU 512 /* RFC 5101, 10.3.3 */
++#define DEFAULT_PORT 4739 /* RFC 5101, 10.3.4 */
++#define DEFAULT_SPORT 4740
++
++enum {
++ OID_CE = 0,
++ HOST_CE,
++ PORT_CE,
++ PROTO_CE,
++ MTU_CE,
++};
++
++#define oid_ce(x) (x->ces[OID_CE])
++#define host_ce(x) (x->ces[HOST_CE])
++#define port_ce(x) (x->ces[PORT_CE])
++#define proto_ce(x) (x->ces[PROTO_CE])
++#define mtu_ce(x) (x->ces[MTU_CE])
++
++static const struct config_keyset ipfix_kset = {
++ .num_ces = 5,
++ .ces = {
++ {
++ .key = "oid",
++ .type = CONFIG_TYPE_INT,
++ .u.value = 0
++ },
++ {
++ .key = "host",
++ .type = CONFIG_TYPE_STRING,
++ .u.string = ""
++ },
++ {
++ .key = "port",
++ .type = CONFIG_TYPE_INT,
++ .u.value = DEFAULT_PORT
++ },
++ {
++ .key = "proto",
++ .type = CONFIG_TYPE_STRING,
++ .u.string = "tcp"
++ },
++ {
++ .key = "mtu",
++ .type = CONFIG_TYPE_INT,
++ .u.value = DEFAULT_MTU
++ }
++ }
++};
++
++struct ipfix_templ {
++ struct ipfix_templ *next;
++};
++
++struct ipfix_priv {
++ struct ulogd_fd ufd;
++ uint32_t seqno;
++ struct ipfix_msg *msg; /* current message */
++ struct llist_head list;
++ struct ipfix_templ *templates;
++ int proto;
++ struct ulogd_timer timer;
++ struct sockaddr_in sa;
++};
++
++enum {
++ InIpSaddr = 0,
++ InIpDaddr,
++ InRawInPktCount,
++ InRawInPktLen,
++ InRawOutPktCount,
++ InRawOutPktLen,
++ InFlowStartSec,
++ InFlowStartUsec,
++ InFlowEndSec,
++ InFlowEndUsec,
++ InL4SPort,
++ InL4DPort,
++ InIpProto,
++ InCtMark
++};
++
++static struct ulogd_key ipfix_in_keys[] = {
++ [InIpSaddr] = {
++ .type = ULOGD_RET_IPADDR,
++ .name = "orig.ip.saddr"
++ },
++ [InIpDaddr] = {
++ .type = ULOGD_RET_IPADDR,
++ .name = "orig.ip.daddr"
++ },
++ [InRawInPktCount] = {
++ .type = ULOGD_RET_UINT64,
++ .name = "orig.raw.pktcount"
++ },
++ [InRawInPktLen] = {
++ .type = ULOGD_RET_UINT64,
++ .name = "orig.raw.pktlen"
++ },
++ [InRawOutPktCount] = {
++ .type = ULOGD_RET_UINT64,
++ .name = "reply.raw.pktcount"
++ },
++ [InRawOutPktLen] = {
++ .type = ULOGD_RET_UINT64,
++ .name = "reply.raw.pktlen"
++ },
++ [InFlowStartSec] = {
++ .type = ULOGD_RET_UINT32,
++ .name = "flow.start.sec"
++ },
++ [InFlowStartUsec] = {
++ .type = ULOGD_RET_UINT32,
++ .name = "flow.start.usec"
++ },
++ [InFlowEndSec] = {
++ .type = ULOGD_RET_UINT32,
++ .name = "flow.end.sec"
++ },
++ [InFlowEndUsec] = {
++ .type = ULOGD_RET_UINT32,
++ .name = "flow.end.usec"
++ },
++ [InL4SPort] = {
++ .type = ULOGD_RET_UINT16,
++ .name = "orig.l4.sport"
++ },
++ [InL4DPort] = {
++ .type = ULOGD_RET_UINT16,
++ .name = "orig.l4.dport"
++ },
++ [InIpProto] = {
++ .type = ULOGD_RET_UINT8,
++ .name = "orig.ip.protocol"
++ },
++ [InCtMark] = {
++ .type = ULOGD_RET_UINT32,
++ .name = "ct.mark"
++ }
++};
++
++/* do some polishing and enqueue it */
++static void enqueue_msg(struct ipfix_priv *priv, struct ipfix_msg *msg)
++{
++ struct ipfix_hdr *hdr = ipfix_msg_data(msg);
++
++ if (!msg)
++ return;
++
++ hdr->time = htonl(time(NULL));
++ hdr->seqno = htonl(priv->seqno += msg->nrecs);
++ if (msg->last_set) {
++ msg->last_set->id = htons(msg->last_set->id);
++ msg->last_set->len = htons(msg->last_set->len);
++ msg->last_set = NULL;
++ }
++ hdr->len = htons(ipfix_msg_len(msg));
++
++ llist_add(&msg->link, &priv->list);
++}
++
++/**
++ * @return %ULOGD_IRET_OK or error value
++ */
++static int send_msgs(struct ulogd_pluginstance *pi)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++ struct llist_head *curr, *tmp;
++ struct ipfix_msg *msg;
++ int ret = ULOGD_IRET_OK, sent;
++
++ llist_for_each_prev(curr, &priv->list) {
++ msg = llist_entry(curr, struct ipfix_msg, link);
++
++ sent = send(priv->ufd.fd, ipfix_msg_data(msg), ipfix_msg_len(msg), 0);
++ if (sent < 0) {
++ ulogd_log(ULOGD_ERROR, "send: %m\n");
++ ret = ULOGD_IRET_ERR;
++ goto done;
++ }
++
++ /* TODO handle short send() for other protocols */
++ if ((size_t) sent < ipfix_msg_len(msg))
++ ulogd_log(ULOGD_ERROR, "short send: %d < %d\n",
++ sent, ipfix_msg_len(msg));
++ }
++
++ llist_for_each_safe(curr, tmp, &priv->list) {
++ msg = llist_entry(curr, struct ipfix_msg, link);
++ llist_del(curr);
++ msg->nrecs = 0;
++ ipfix_msg_free(msg);
++ }
++
++done:
++ return ret;
++}
++
++static int ipfix_ufd_cb(int fd, unsigned what, void *arg)
++{
++ struct ulogd_pluginstance *pi = arg;
++ struct ipfix_priv *priv = (struct ipfix_priv *) pi->private;
++ ssize_t nread;
++ char buf[16];
++
++ if (what & ULOGD_FD_READ) {
++ nread = recv(priv->ufd.fd, buf, sizeof(buf), MSG_DONTWAIT);
++ if (nread < 0) {
++ ulogd_log(ULOGD_ERROR, "recv: %m\n");
++ } else if (!nread) {
++ ulogd_log(ULOGD_INFO, "connection reset by peer\n");
++ ulogd_unregister_fd(&priv->ufd);
++ } else
++ ulogd_log(ULOGD_INFO, "unexpected data (%d bytes)\n", nread);
++ }
++
++ return 0;
++}
++
++static void ipfix_timer_cb(struct ulogd_timer *t, void *data)
++{
++ struct ulogd_pluginstance *pi = data;
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++
++ if (priv->msg && priv->msg->nrecs > 0) {
++ enqueue_msg(priv, priv->msg);
++ priv->msg = NULL;
++ send_msgs(pi);
++ }
++}
++
++static int ipfix_configure(struct ulogd_pluginstance *pi, struct ulogd_pluginstance_stack *stack)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++ int oid, port, mtu, ret;
++ char *host, *proto;
++ char addr[16];
++
++ ret = config_parse_file(pi->id, pi->config_kset);
++ if (ret < 0)
++ return ret;
++
++ oid = oid_ce(pi->config_kset).u.value;
++ host = host_ce(pi->config_kset).u.string;
++ port = port_ce(pi->config_kset).u.value;
++ proto = proto_ce(pi->config_kset).u.string;
++ mtu = mtu_ce(pi->config_kset).u.value;
++
++ if (!oid) {
++ ulogd_log(ULOGD_FATAL, "invalid Observation ID\n");
++ return ULOGD_IRET_ERR;
++ }
++ if (!host || !strcmp(host, "")) {
++ ulogd_log(ULOGD_FATAL, "no destination host specified\n");
++ return ULOGD_IRET_ERR;
++ }
++
++ if (!strcmp(proto, "udp")) {
++ priv->proto = IPPROTO_UDP;
++ } else if (!strcmp(proto, "tcp")) {
++ priv->proto = IPPROTO_TCP;
++ } else {
++ ulogd_log(ULOGD_FATAL, "unsupported protocol '%s'\n", proto);
++ return ULOGD_IRET_ERR;
++ }
++
++ memset(&priv->sa, 0, sizeof(priv->sa));
++ priv->sa.sin_family = AF_INET;
++ priv->sa.sin_port = htons(port);
++ ret = inet_pton(AF_INET, host, &priv->sa.sin_addr);
++ if (ret <= 0) {
++ ulogd_log(ULOGD_FATAL, "inet_pton: %m\n");
++ return ULOGD_IRET_ERR;
++ }
++
++ INIT_LLIST_HEAD(&priv->list);
++
++ ulogd_init_timer(&priv->timer, pi, ipfix_timer_cb);
++
++ ulogd_log(ULOGD_INFO, "using IPFIX Collector at %s:%d (MTU %d)\n",
++ inet_ntop(AF_INET, &priv->sa.sin_addr, addr, sizeof(addr)),
++ port, mtu);
++
++ return ULOGD_IRET_OK;
++}
++
++static int tcp_connect(struct ulogd_pluginstance *pi)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++ int ret = ULOGD_IRET_ERR;
++
++ if ((priv->ufd.fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
++ ulogd_log(ULOGD_FATAL, "socket: %m\n");
++ return ULOGD_IRET_ERR;
++ }
++
++ if (connect(priv->ufd.fd, (struct sockaddr *) &priv->sa, sizeof(priv->sa)) < 0) {
++ ulogd_log(ULOGD_ERROR, "connect: %m\n");
++ ret = ULOGD_IRET_ERR;
++ goto err_close;
++ }
++
++ return ULOGD_IRET_OK;
++
++err_close:
++ close(priv->ufd.fd);
++ return ret;
++}
++
++static int udp_connect(struct ulogd_pluginstance *pi)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++
++ if ((priv->ufd.fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
++ ulogd_log(ULOGD_FATAL, "socket: %m\n");
++ return ULOGD_IRET_ERR;
++ }
++
++ if (connect(priv->ufd.fd, (struct sockaddr *) &priv->sa, sizeof(priv->sa)) < 0) {
++ ulogd_log(ULOGD_ERROR, "connect: %m\n");
++ return ULOGD_IRET_ERR;
++ }
++
++ return 0;
++}
++
++static int ipfix_start(struct ulogd_pluginstance *pi)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++ char addr[16];
++ int port, ret;
++
++ switch (priv->proto) {
++ case IPPROTO_UDP:
++ if ((ret = udp_connect(pi)) < 0)
++ return ret;
++ break;
++ case IPPROTO_TCP:
++ if ((ret = tcp_connect(pi)) < 0)
++ return ret;
++ break;
++
++ default:
++ break;
++ }
++
++ priv->seqno = 0;
++
++ port = port_ce(pi->config_kset).u.value;
++ ulogd_log(ULOGD_INFO, "connected to %s:%d\n",
++ inet_ntop(AF_INET, &priv->sa.sin_addr, addr, sizeof(addr)),
++ port);
++
++ /* Register the socket FD */
++ priv->ufd.when = ULOGD_FD_READ;
++ priv->ufd.cb = ipfix_ufd_cb;
++ priv->ufd.data = pi;
++
++ if (ulogd_register_fd(&priv->ufd) < 0)
++ return ULOGD_IRET_ERR;
++
++ /* Add a 1 second timer */
++ ulogd_add_timer(&priv->timer, 1);
++
++ return ULOGD_IRET_OK;
++}
++
++static int ipfix_stop(struct ulogd_pluginstance *pi)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++
++ ulogd_unregister_fd(&priv->ufd);
++ close(priv->ufd.fd);
++ priv->ufd.fd = -1;
++
++ ulogd_del_timer(&priv->timer);
++
++ ipfix_msg_free(priv->msg);
++ priv->msg = NULL;
++
++ return 0;
++}
++
++static int ipfix_interp(struct ulogd_pluginstance *pi)
++{
++ struct ipfix_priv *priv = (struct ipfix_priv *) &pi->private;
++ struct vy_ipfix_data *data;
++ int oid, mtu, ret;
++ char addr[16];
++
++ if (!(GET_FLAGS(pi->input.keys, InIpSaddr) & ULOGD_RETF_VALID))
++ return ULOGD_IRET_OK;
++
++ oid = oid_ce(pi->config_kset).u.value;
++ mtu = mtu_ce(pi->config_kset).u.value;
++
++again:
++ if (!priv->msg) {
++ priv->msg = ipfix_msg_alloc(mtu, oid);
++ if (!priv->msg) {
++ /* just drop this flow */
++ ulogd_log(ULOGD_ERROR, "out of memory, dropping flow\n");
++ return ULOGD_IRET_OK;
++ }
++ ipfix_msg_add_set(priv->msg, VY_IPFIX_SID);
++ }
++
++ data = ipfix_msg_add_data(priv->msg, sizeof(struct vy_ipfix_data));
++ if (!data) {
++ enqueue_msg(priv, priv->msg);
++ priv->msg = NULL;
++ /* can't loop because the next will definitely succeed */
++ goto again;
++ }
++
++ data->ifi_in = data->ifi_out = 0;
++
++ data->saddr.s_addr = ikey_get_u32(&pi->input.keys[InIpSaddr]);
++ data->daddr.s_addr = ikey_get_u32(&pi->input.keys[InIpDaddr]);
++
++ data->packets = htonl((uint32_t) (ikey_get_u64(&pi->input.keys[InRawInPktCount])
++ + ikey_get_u64(&pi->input.keys[InRawOutPktCount])));
++ data->bytes = htonl((uint32_t) (ikey_get_u64(&pi->input.keys[InRawInPktLen])
++ + ikey_get_u64(&pi->input.keys[InRawOutPktLen])));
++
++ data->start = htonl(ikey_get_u32(&pi->input.keys[InFlowStartSec]));
++ data->end = htonl(ikey_get_u32(&pi->input.keys[InFlowEndSec]));
++
++ if (GET_FLAGS(pi->input.keys, InL4SPort) & ULOGD_RETF_VALID) {
++ data->sport = htons(ikey_get_u16(&pi->input.keys[InL4SPort]));
++ data->dport = htons(ikey_get_u16(&pi->input.keys[InL4DPort]));
++ }
++
++ data->aid = 0;
++ if (GET_FLAGS(pi->input.keys, InCtMark) & ULOGD_RETF_VALID)
++ data->aid = htonl(ikey_get_u32(&pi->input.keys[InCtMark]));
++
++ data->l4_proto = ikey_get_u8(&pi->input.keys[InIpProto]);
++ data->__padding = 0;
++
++ ulogd_log(ULOGD_DEBUG, "Got new packet (packets = %u, bytes = %u, flow = (%u, %u), saddr = %s, daddr = %s, sport = %u, dport = %u)\n",
++ ntohl(data->packets), ntohl(data->bytes), ntohl(data->start), ntohl(data->end),
++ inet_ntop(AF_INET, &data->saddr.s_addr, addr, sizeof(addr)),
++ inet_ntop(AF_INET, &data->daddr.s_addr, addr, sizeof(addr)),
++ ntohs(data->sport), ntohs(data->dport));
++
++ if ((ret = send_msgs(pi)) < 0)
++ return ret;
++
++ return ULOGD_IRET_OK;
++}
++
++static struct ulogd_plugin ipfix_plugin = {
++ .name = "IPFIX",
++ .input = {
++ .keys = ipfix_in_keys,
++ .num_keys = ARRAY_SIZE(ipfix_in_keys),
++ .type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW | ULOGD_DTYPE_SUM
++ },
++ .output = {
++ .type = ULOGD_DTYPE_SINK
++ },
++ .config_kset = (struct config_keyset *) &ipfix_kset,
++ .priv_size = sizeof(struct ipfix_priv),
++ .configure = ipfix_configure,
++ .start = ipfix_start,
++ .stop = ipfix_stop,
++ .interp = ipfix_interp,
++ .version = VERSION,
++};
++
++void __attribute__ ((constructor)) init(void);
++
++void init(void)
++{
++ ulogd_register_plugin(&ipfix_plugin);
++}
+--
+cgit v1.2.1
+
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