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util.c
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util.c
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/*
* nProbe - a Netflow v5/v9/IPFIX probe for IPv4/v6
*
* Copyright (C) 2002-11 Luca Deri <deri@ntop.org>
*
* http://www.ntop.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "nprobe.h"
#ifdef sun
extern char *strtok_r(char *, const char *, char **);
#endif
#ifdef WIN32
#define strtok_r(a, b, c) strtok(a, b)
#endif
#ifdef HAVE_SQLITE
extern void sqlite_exec_sql(char* sql);
#endif
static u_int8_t getIfIdx(struct in_addr *addr, u_int16_t *interface_id);
/* ********************** */
static char *port_mapping[0xFFFF] = { NULL };
static char *proto_mapping[0xFF] = { NULL };
/* ********************** */
#define CUSTOM_FIELD_LEN 16
/* ************************************ */
void traceEvent(const int eventTraceLevel, const char* file,
const int line, const char * format, ...) {
va_list va_ap;
if(eventTraceLevel <= readOnlyGlobals.traceLevel) {
char buf[2048], out_buf[640];
char theDate[32], *extra_msg = "";
time_t theTime = time(NULL);
va_start (va_ap, format);
/* We have two paths - one if we're logging, one if we aren't
* Note that the no-log case is those systems which don't support it (WIN32),
* those without the headers !defined(USE_SYSLOG)
* those where it's parametrically off...
*/
memset(buf, 0, sizeof(buf));
strftime(theDate, 32, "%d/%b/%Y %H:%M:%S", localtime(&theTime));
vsnprintf(buf, sizeof(buf)-1, format, va_ap);
if(eventTraceLevel == 0 /* TRACE_ERROR */)
extra_msg = "ERROR: ";
else if(eventTraceLevel == 1 /* TRACE_WARNING */)
extra_msg = "WARNING: ";
while(buf[strlen(buf)-1] == '\n') buf[strlen(buf)-1] = '\0';
snprintf(out_buf, sizeof(out_buf), "%s [%s:%d] %s%s", theDate,
#ifdef WIN32
strrchr(file, '\\')+1,
#else
file,
#endif
line, extra_msg, buf);
#ifndef WIN32
if(readOnlyGlobals.useSyslog) {
if(!readWriteGlobals->syslog_opened) {
openlog(readOnlyGlobals.nprobeId, LOG_PID, LOG_DAEMON);
readWriteGlobals->syslog_opened = 1;
}
syslog(LOG_INFO, "%s", out_buf);
} else
printf("%s\n", out_buf);
#else
printf("%s\n", out_buf);
#endif
}
fflush(stdout);
va_end(va_ap);
}
/* ************************************ */
#ifdef WIN32
unsigned long waitForNextEvent(unsigned long ulDelay /* ms */) {
unsigned long ulSlice = 1000L; /* 1 Second */
while(ulDelay > 0L) {
if(ulDelay < ulSlice)
ulSlice = ulDelay;
Sleep(ulSlice);
ulDelay -= ulSlice;
}
return ulDelay;
}
/* ******************************* */
void initWinsock32() {
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD(2, 0);
err = WSAStartup( wVersionRequested, &wsaData );
if( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
traceEvent(TRACE_ERROR, "FATAL ERROR: unable to initialise Winsock 2.x.");
exit(-1);
}
}
/* ******************************** */
short isWinNT() {
DWORD dwVersion;
DWORD dwWindowsMajorVersion;
dwVersion=GetVersion();
dwWindowsMajorVersion = (DWORD)(LOBYTE(LOWORD(dwVersion)));
if(!(dwVersion >= 0x80000000 && dwWindowsMajorVersion >= 4))
return 1;
else
return 0;
}
/* ****************************************************** */
/*
int snprintf(char *string, size_t maxlen, const char *format, ...) {
int ret=0;
va_list args;
va_start(args, format);
vsprintf(string,format,args);
va_end(args);
return ret;
}
*/
#endif /* Win32 */
/* ******************************************************************* */
u_int8_t ip2mask(IpAddress ip) {
if((readOnlyGlobals.numInterfaceNetworks == 0) || (ip.ipVersion != 4))
return(0);
else {
int i;
u_int32_t addr = htonl(ip.ipType.ipv4);
for(i=0; i<readOnlyGlobals.numInterfaceNetworks; i++) {
if((addr & readOnlyGlobals.interfaceNetworks[i].netmask) == readOnlyGlobals.interfaceNetworks[i].network) {
// traceEvent(TRACE_INFO, "--> %d", readOnlyGlobals.interfaceNetworks[i].netmask_v6);
return(readOnlyGlobals.interfaceNetworks[i].netmask_v6);
}
}
}
return(0); /* Unknown */
}
/* ******************************************************************* */
static ip_to_AS _ip_to_AS;
static fillASinfo _fillASinfo;
void initAS() {
_ip_to_AS = NULL;
_fillASinfo = NULL;
}
void setIp2AS(ip_to_AS ptr) {
_ip_to_AS = ptr;
}
void setFillASInfo(fillASinfo ptr) {
_fillASinfo = ptr;
}
void fillASInfo(FlowHashBucket *bkt) {
if(/* (!readWriteGlobals->shutdownInProgress) && */ _fillASinfo)
_fillASinfo(bkt);
}
/* ******************************************************************* */
static u_int32_t _ip2AS(IpAddress ip) {
if((!readWriteGlobals->shutdownInProgress) && (_ip_to_AS != NULL)) {
return(_ip_to_AS(ip));
}
#ifdef HAVE_GEOIP
if((readOnlyGlobals.geo_ip_asn_db == NULL)
#ifdef WIN32
|| (ip.ipVersion == 6)
#endif
)
return(0);
else {
char *rsp = NULL;
u_int32_t as;
pthread_rwlock_wrlock(&readWriteGlobals->geoipRwLock);
if(ip.ipVersion == 4)
rsp = GeoIP_name_by_ipnum(readOnlyGlobals.geo_ip_asn_db, ip.ipType.ipv4);
else {
#ifdef INET6
#ifndef WIN32
rsp = GeoIP_name_by_ipnum_v6(readOnlyGlobals.geo_ip_asn_db, ip.ipType.ipv6);
#endif
#endif
}
pthread_rwlock_unlock(&readWriteGlobals->geoipRwLock);
as = rsp ? atoi(&rsp[2]) : 0;
free(rsp);
/* traceEvent(TRACE_WARNING, "--> %s (%d)", rsp, as); */
return(as);
}
#else
return(0);
#endif
}
/* ************************************* */
u_int32_t _getAS(HostHashBucket *bkt) {
u_int32_t ret;
if(bkt->aspath && (bkt->aspath_len > 0)) {
/* The last element is the host AS, the first one is our AS */
ret = bkt->aspath[bkt->aspath_len-1];
} else
ret = _ip2AS(bkt->host);
/* traceEvent(TRACE_WARNING, "--> %u", ret); */
return(ret);
}
/* ************************************ */
u_int32_t getAS(FlowHashBucket *bkt, u_int8_t src_host) {
if(src_host)
return((bkt->src_as != 0) ? bkt->src_as : _getAS(bkt->src));
else
return((bkt->dst_as != 0) ? bkt->dst_as : _getAS(bkt->dst));
}
/* ************************************ */
void readASs(char *path) {
#ifdef HAVE_GEOIP
if(path == NULL)
return;
else {
struct stat stats;
char the_path[256];
if(stat(path, &stats) == 0)
snprintf(the_path, sizeof(the_path), "%s", path);
else
snprintf(the_path, sizeof(the_path), "/usr/local/nprobe/%s", path);
if((readOnlyGlobals.geo_ip_asn_db = GeoIP_open(the_path, GEOIP_CHECK_CACHE)) != NULL) {
traceEvent(TRACE_NORMAL, "GeoIP: loaded AS config file %s", the_path);
} else
traceEvent(TRACE_WARNING, "Unable to load AS file %s. AS support disabled", the_path);
}
#endif
}
/* ************************************ */
void readCities(char *path) {
#ifdef HAVE_GEOIP
if(path == NULL)
return;
else {
struct stat stats;
char the_path[256];
if(stat(path, &stats) == 0)
snprintf(the_path, sizeof(the_path), "%s", path);
else
snprintf(the_path, sizeof(the_path), "/usr/local/nprobe/%s", path);
if((readOnlyGlobals.geo_ip_city_db = GeoIP_open(the_path, GEOIP_CHECK_CACHE)) != NULL) {
traceEvent(TRACE_NORMAL, "GeoIP: loaded cities config file %s", the_path);
} else
traceEvent(TRACE_WARNING, "Unable to load cities file %s. IP geolocation disabled", the_path);
}
#endif
}
/* ********* NetFlow v9/IPFIX ***************************** */
/*
Cisco Systems NetFlow Services Export Version 9
http://www.faqs.org/rfcs/rfc3954.html
See http://www.plixer.com/blog/tag/in_bytes/ for IN/OUT directions
*/
V9V10TemplateElementId ver9_templates[] = {
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 1, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "IN_BYTES", "Incoming flow bytes (src->dst)" },
{ OPTION_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 1, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "SYSTEM_ID", "" }, /* Hack for options template */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 2, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "IN_PKTS", "Incoming flow packets (src->dst)" },
{ OPTION_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 2, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "INTERFACE_ID", "" }, /* Hack for options template */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 3, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "FLOWS", "Number of flows" },
{ OPTION_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 3, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "LINE_CARD", "" }, /* Hack for options template */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 4, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "PROTOCOL", "IP protocol byte" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 0xA0+4, STATIC_FIELD_LEN, CUSTOM_FIELD_LEN, numeric_format, dump_as_ip_proto, "PROTOCOL_MAP", "IP protocol name" },
{ OPTION_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 4, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "NETFLOW_CACHE", "" }, /* Hack for options template */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 5, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "SRC_TOS", "Type of service byte" },
{ OPTION_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 5, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "TEMPLATE_ID", "" }, /* Hack for options template */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 6, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "TCP_FLAGS", "Cumulative of all flow TCP flags" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 7, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "L4_SRC_PORT", "IPv4 source port" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 0xA0+7, STATIC_FIELD_LEN, CUSTOM_FIELD_LEN, numeric_format, dump_as_ip_port, "L4_SRC_PORT_MAP", "IPv4 source port symbolic name" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 8, STATIC_FIELD_LEN, 4, numeric_format, dump_as_ipv4_address, "IPV4_SRC_ADDR", "IPv4 source address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 9, STATIC_FIELD_LEN, 1, numeric_format, dump_as_ipv6_address, "IPV4_SRC_MASK", "IPv4 source subnet mask (/<bits>)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 10, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "INPUT_SNMP", "Input interface SNMP idx" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 11, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "L4_DST_PORT", "IPv4 destination port" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 0xA0+11, STATIC_FIELD_LEN, CUSTOM_FIELD_LEN, numeric_format, dump_as_ip_port, "L4_DST_PORT_MAP", "IPv4 destination port symbolic name" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 12, STATIC_FIELD_LEN, 4, numeric_format, dump_as_ipv4_address, "IPV4_DST_ADDR", "IPv4 destination address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 13, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "IPV4_DST_MASK", "IPv4 dest subnet mask (/<bits>)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 14, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "OUTPUT_SNMP", "Output interface SNMP idx" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 15, STATIC_FIELD_LEN, 4, numeric_format, dump_as_ipv4_address, "IPV4_NEXT_HOP", "IPv4 next hop address" },
/* In earlier versions AS were 16 bit in 'modern' NetFlow v9 and later, they are 32 bit */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 16, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "SRC_AS", "Source BGP AS" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 17, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "DST_AS", "Destination BGP AS" },
/*
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 18, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "BGP_IPV4_NEXT_HOP", "" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 19, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "MUL_DST_PKTS", "" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 20, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "MUL_DST_BYTES", "" },
*/
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 21, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "LAST_SWITCHED", "SysUptime (msec) of the last flow pkt" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 22, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "FIRST_SWITCHED", "SysUptime (msec) of the first flow pkt" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 23, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "OUT_BYTES", "Outgoing flow bytes (dst->src)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 24, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "OUT_PKTS", "Outgoing flow packets (dst->src)" },
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 25, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 26, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 27, STATIC_FIELD_LEN, 16, ipv6_address_format, dump_as_ipv6_address, "IPV6_SRC_ADDR", "IPv6 source address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 28, STATIC_FIELD_LEN, 16, ipv6_address_format, dump_as_ipv6_address, "IPV6_DST_ADDR", "IPv6 destination address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 29, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "IPV6_SRC_MASK", "IPv6 source mask" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 30, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "IPV6_DST_MASK", "IPv6 destination mask" },
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 31, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "IPV6_FLOW_LABEL", "" }, */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 32, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "ICMP_TYPE", "ICMP Type * 256 + ICMP code" },
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 33, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "MUL_IGMP_TYPE", "" }, */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 34, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "SAMPLING_INTERVAL", "Sampling rate" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 35, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "SAMPLING_ALGORITHM", "Sampling type (deterministic/random)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 36, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "FLOW_ACTIVE_TIMEOUT", "Activity timeout of flow cache entries" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 37, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "FLOW_INACTIVE_TIMEOUT", "Inactivity timeout of flow cache entries" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 38, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "ENGINE_TYPE", "Flow switching engine" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 39, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "ENGINE_ID", "Id of the flow switching engine" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 40, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "TOTAL_BYTES_EXP", "Total bytes exported" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 41, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "TOTAL_PKTS_EXP", "Total flow packets exported" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 42, STATIC_FIELD_LEN, 4, numeric_format, dump_as_formatted_uint, "TOTAL_FLOWS_EXP", "Total number of exported flows" },
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 43, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 44, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 45, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 46, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, i*/
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 47, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 48, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 49, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 50, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 51, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 52, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 53, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 54, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 55, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 56, STATIC_FIELD_LEN, 6, hex_format, dump_as_mac_address, "IN_SRC_MAC", "Source MAC Address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 58, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SRC_VLAN", "Source VLAN" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 59, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "DST_VLAN", "Destination VLAN" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 60, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "IP_PROTOCOL_VERSION", "[4=IPv4][6=IPv6]" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 61, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "DIRECTION", "It indicates where a sample has been taken (always 0)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 62, STATIC_FIELD_LEN, 16, numeric_format, dump_as_uint, "IPV6_NEXT_HOP", "IPv6 next hop address" },
/*
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 63, STATIC_FIELD_LEN, 16, ipv6_address_format, dump_as_uint, "BPG_IPV6_NEXT_HOP", "" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 64, STATIC_FIELD_LEN, 16, ipv6_address_format, dump_as_uint, "IPV6_OPTION_HEADERS", "" },
*/
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 65, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 66, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 67, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 68, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
/* { FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 69, STATIC_FIELD_LEN, 0, numeric_format, dump_as_uint, "RESERVED", "" }, */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 70, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_1", "MPLS label at position 1" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 71, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_2", "MPLS label at position 2" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 72, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_3", "MPLS label at position 3" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 73, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_4", "MPLS label at position 4" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 74, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_5", "MPLS label at position 5" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 75, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_6", "MPLS label at position 6" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 76, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_7", "MPLS label at position 7" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 77, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_8", "MPLS label at position 8" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 78, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_9", "MPLS label at position 9" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 79, STATIC_FIELD_LEN, 3, numeric_format, dump_as_uint, "MPLS_LABEL_10", "MPLS label at position 10" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 80, STATIC_FIELD_LEN, 6, hex_format, dump_as_mac_address, "OUT_DST_MAC", "Destination MAC Address" }, /* new */
/* Fields not yet fully supported (collection only) */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 102, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "PACKET_SECTION_OFFSET", "Packet section offset" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 103, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SAMPLED_PACKET_SIZE", "Sampled packet size" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 104, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SAMPLED_PACKET_ID", "Sampled packet id" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 148, STATIC_FIELD_LEN, 8, numeric_format, dump_as_uint, "FLOW_ID", "Serial Flow Identifier" },
/* Fields not yet fully supported (collection only) */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 277, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "OBSERVATION_POINT_TYPE", "Observation point type" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 300, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "OBSERVATION_POINT_ID", "Observation point id" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 302, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SELECTOR_ID", "Selector id" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 304, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SAMPLING_ALGORITHM", "Sampling algorithm" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 309, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SAMPLING_SIZE", "Number of packets to sample" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 310, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SAMPLING_POPULATION", "Sampling population" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 312, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "FRAME_LENGTH", "Original L2 frame length" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 318, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "PACKETS_OBSERVED", "Tot number of packets seen" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 319, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "PACKETS_SELECTED", "Number of pkts selected for sampling" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 335, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SELECTOR_NAME", "Sampler name" },
/*
ntop Extensions
IMPORTANT
if you change/add constants here/below make sure
you change them into ntop too.
*/
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+80, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "FRAGMENTS", "Number of fragmented flow packets" },
/* 81 is available */
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+82, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "CLIENT_NW_DELAY_SEC", "Network latency client <-> nprobe (sec)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+83, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "CLIENT_NW_DELAY_USEC", "Network latency client <-> nprobe (usec)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+84, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "SERVER_NW_DELAY_SEC", "Network latency nprobe <-> server (sec)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+85, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "SERVER_NW_DELAY_USEC", "Network latency nprobe <-> server (usec)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+86, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "APPL_LATENCY_SEC", "Application latency (sec)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+87, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "APPL_LATENCY_USEC", "Application latency (usec)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+IN_PAYLOAD_ID, STATIC_FIELD_LEN, 0 /* The length is set at runtime */, ascii_format, dump_as_hex, "IN_PAYLOAD", "Initial payload bytes" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+OUT_PAYLOAD_ID, STATIC_FIELD_LEN, 0 /* The length is set at runtime */, ascii_format, dump_as_ascii, "OUT_PAYLOAD", "Initial payload bytes" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+98, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "ICMP_FLAGS", "Cumulative of all flow ICMP types" },
/* 99+100 are available */
#ifdef HAVE_GEOIP
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+101, STATIC_FIELD_LEN, 2, ascii_format, dump_as_ascii, "SRC_IP_COUNTRY", "Country where the src IP is located" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+102, STATIC_FIELD_LEN, 16, ascii_format, dump_as_ascii, "SRC_IP_CITY", "City where the src IP is located" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+103, STATIC_FIELD_LEN, 2, ascii_format, dump_as_ascii, "DST_IP_COUNTRY", "Country where the dst IP is located" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+104, STATIC_FIELD_LEN, 16, ascii_format, dump_as_ascii, "DST_IP_CITY", "City where the dst IP is located" },
#endif
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+105, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "FLOW_PROTO_PORT", "L7 port that identifies the flow protocol or 0 if unknown" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+106, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "TUNNEL_ID", "Tunnel identifier (e.g. GTP tunnel Id) or 0 if unknown" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+107, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "LONGEST_FLOW_PKT", "Longest packet (bytes) of the flow" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+108, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "SHORTEST_FLOW_PKT", "Shortest packet (bytes) of the flow" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+109, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "RETRANSMITTED_IN_PKTS", "Number of retransmitted TCP flow packets (src->dst)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+110, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "RETRANSMITTED_OUT_PKTS", "Number of retransmitted TCP flow packets (dst->src)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+111, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "OOORDER_IN_PKTS", "Number of out of order TCP flow packets (dst->src)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+112, STATIC_FIELD_LEN, 4, numeric_format, dump_as_uint, "OOORDER_OUT_PKTS", "Number of out of order TCP flow packets (dst->src)" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+113, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "UNTUNNELED_PROTOCOL", "Untunneled IP protocol byte" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+114, STATIC_FIELD_LEN, 4, numeric_format, dump_as_ipv4_address, "UNTUNNELED_IPV4_SRC_ADDR", "Untunneled IPv4 source address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+115, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "UNTUNNELED_L4_SRC_PORT", "Untunneled IPv4 source port" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+116, STATIC_FIELD_LEN, 4, numeric_format, dump_as_ipv4_address, "UNTUNNELED_IPV4_DST_ADDR", "Untunneled IPv4 destination address" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,NTOP_ENTERPRISE_ID, NTOP_BASE_ID+117, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "UNTUNNELED_L4_DST_PORT", "Untunneled IPv4 destination port" },
/*
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, NTOP_BASE_ID+0, STATIC_FIELD_LEN, 1, numeric_format, dump_as_uint, "PAD1", "" },
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, NTOP_BASE_ID+0, STATIC_FIELD_LEN, 2, numeric_format, dump_as_uint, "PAD2", "" },
*/
{ FLOW_TEMPLATE, SHORT_SNAPLEN,STANDARD_ENTERPRISE_ID, 0, STATIC_FIELD_LEN, 0, 0, 0, NULL, NULL }
};
/* ******************************************** */
void printTemplateInfo(V9V10TemplateElementId *templates,
u_char show_private_elements) {
int j = 0;
while(templates[j].templateElementName != NULL) {
if(((!show_private_elements)
&& ((templates[j].templateElementLen > 0)
|| (templates[j].templateElementId == IN_PAYLOAD_ID)
|| (templates[j].templateElementId == OUT_PAYLOAD_ID)))
|| (show_private_elements && (templates[j].templateElementId >= 0xFF))) {
if(templates[j].templateElementEnterpriseId == NTOP_ENTERPRISE_ID) {
printf("[NFv9 %3d][IPFIX %5d.%d] %%%-22s\t%s\n",
templates[j].templateElementId,
templates[j].templateElementEnterpriseId, templates[j].templateElementId-NTOP_BASE_ID,
templates[j].templateElementName,
templates[j].templateElementDescr);
} else {
printf("[%3d] %%%-22s\t%s\n",
templates[j].templateElementId,
templates[j].templateElementName,
templates[j].templateElementDescr);
}
}
j++;
}
}
/* ******************************************** */
char* getStandardFieldId(u_int id) {
int i = 0;
while(ver9_templates[i].templateElementName != NULL) {
if(ver9_templates[i].templateElementId == id)
return(ver9_templates[i].templateElementName);
else
i++;
}
return("");
}
/* ******************************************** */
void setPayloadLength(int len) {
int i = 0;
while(ver9_templates[i].templateElementName != NULL) {
if((ver9_templates[i].templateElementId == IN_PAYLOAD_ID)
|| (ver9_templates[i].templateElementId == OUT_PAYLOAD_ID)) {
ver9_templates[i].templateElementLen = len;
if(0)
traceEvent(TRACE_ERROR, "--> Setting payload length for element %s",
ver9_templates[i].templateElementName);
}
i++;
}
}
/* ******************************************** */
void copyInt8(u_int8_t t8, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
if((*outBufferBegin)+sizeof(t8) < (*outBufferMax)) {
memcpy(&outBuffer[(*outBufferBegin)], &t8, sizeof(t8));
(*outBufferBegin) += sizeof(t8);
}
}
/* ******************************************** */
void copyInt16(u_int16_t _t16, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
u_int16_t t16 = htons(_t16);
if((*outBufferBegin)+sizeof(t16) < (*outBufferMax)) {
memcpy(&outBuffer[(*outBufferBegin)], &t16, sizeof(t16));
(*outBufferBegin) += sizeof(t16);
}
}
/* ******************************************** */
void copyInt32(u_int32_t _t32, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
u_int32_t t32 = htonl(_t32);
if((*outBufferBegin)+sizeof(t32) < (*outBufferMax)) {
#ifdef DEBUG
char buf1[32];
printf("(8) %s\n", _intoaV4(_t32, buf1, sizeof(buf1)));
#endif
memcpy(&outBuffer[(*outBufferBegin)], &t32, sizeof(t32));
(*outBufferBegin) += sizeof(t32);
}
}
/* ******************************************** */
/* 64-bit version of ntohl and htonl */
unsigned long long htonll(unsigned long long v) {
union { unsigned long lv[2]; unsigned long long llv; } u;
u.lv[0] = htonl(v >> 32);
u.lv[1] = htonl(v & 0xFFFFFFFFULL);
return u.llv;
}
unsigned long long ntohll(unsigned long long v) {
union { unsigned long lv[2]; unsigned long long llv; } u;
u.llv = v;
return ((unsigned long long)ntohl(u.lv[0]) << 32) | (unsigned long long)ntohl(u.lv[1]);
}
/* ******************************************** */
void copyInt64(u_int64_t _t64, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
u_int64_t t64 = htonll(_t64);
if((*outBufferBegin)+sizeof(t64) < (*outBufferMax)) {
memcpy(&outBuffer[(*outBufferBegin)], &t64, sizeof(t64));
(*outBufferBegin) += sizeof(t64);
}
}
/* ******************************************** */
void copyLen(u_char *str, int strLen, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
if((*outBufferBegin)+strLen < (*outBufferMax)) {
memcpy(&outBuffer[(*outBufferBegin)], str, strLen);
(*outBufferBegin) += strLen;
}
}
/* ******************************************** */
static void copyIpV6(struct in6_addr ipv6, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
copyLen((u_char*)&ipv6, sizeof(ipv6), outBuffer,
outBufferBegin, outBufferMax);
}
/* ******************************************** */
static void copyMac(u_char *macAddress, char *outBuffer,
uint *outBufferBegin, uint *outBufferMax) {
copyLen(macAddress, 6 /* lenght of mac address */,
outBuffer, outBufferBegin, outBufferMax);
}
/* ******************************************** */
static void copyMplsLabel(struct mpls_labels *mplsInfo, int labelId,
char *outBuffer, uint *outBufferBegin,
uint *outBufferMax) {
if(mplsInfo == NULL) {
int i;
for(i=0; (i < 3) && (*outBufferBegin < *outBufferMax); i++) {
outBuffer[*outBufferBegin] = 0;
(*outBufferBegin)++;
}
} else {
if(((*outBufferBegin)+MPLS_LABEL_LEN) < (*outBufferMax)) {
memcpy(outBuffer, mplsInfo->mplsLabels[labelId-1], MPLS_LABEL_LEN);
(*outBufferBegin) += MPLS_LABEL_LEN;
}
}
}
/* ****************************************************** */
static void exportPayload(FlowHashBucket *myBucket, FlowDirection direction,
V9V10TemplateElementId *theTemplate,
char *outBuffer, uint *outBufferBegin,
uint *outBufferMax) {
if(readOnlyGlobals.maxPayloadLen > 0) {
u_char thePayload[MAX_PAYLOAD_LEN];
int len;
if(direction == src2dst_direction)
len = myBucket->src2dstPayloadLen;
else
len = myBucket->dst2srcPayloadLen;
/*
u_int16_t t16;
t16 = theTemplate->templateId;
copyInt16(t16, outBuffer, outBufferBegin, outBufferMax);
t16 = maxPayloadLen;
copyInt16(t16, outBuffer, outBufferBegin, outBufferMax);
*/
memset(thePayload, 0, readOnlyGlobals.maxPayloadLen);
if(len > readOnlyGlobals.maxPayloadLen) len = readOnlyGlobals.maxPayloadLen;
memcpy(thePayload, direction == src2dst_direction ? myBucket->src2dstPayload : myBucket->dst2srcPayload, len);
copyLen(thePayload, readOnlyGlobals.maxPayloadLen, outBuffer, outBufferBegin, outBufferMax);
}
}
/* ******************************************** */
u_int16_t ifIdx(FlowHashBucket *myBucket, FlowDirection direction, int inputIf) {
u_char *mac;
u_int16_t idx;
struct in_addr addr;
if(readOnlyGlobals.use_vlanId_as_ifId) {
return(myBucket->vlanId);
}
addr.s_addr = inputIf ? htonl(myBucket->src->host.ipType.ipv4) : htonl(myBucket->dst->host.ipType.ipv4);
if(getIfIdx(&addr, &idx))
return(idx);
if(readWriteGlobals->num_src_mac_export > 0) {
int i = 0;
for(i = 0; i<readWriteGlobals->num_src_mac_export; i++)
if((((inputIf == 1) && (direction == src2dst_direction))
|| ((inputIf == 0) && (direction == dst2src_direction)))
&& (memcmp(myBucket->srcMacAddress,
readOnlyGlobals.mac_if_match[i].mac_address, 6) == 0))
return(readOnlyGlobals.mac_if_match[i].interface_id);
else if((((inputIf == 0) && (direction == src2dst_direction))
|| ((inputIf == 1) && (direction == dst2src_direction)))
&& (memcmp(myBucket->dstMacAddress,
readOnlyGlobals.mac_if_match[i].mac_address, 6) == 0))
return(readOnlyGlobals.mac_if_match[i].interface_id);
}
if(inputIf) {
if(readOnlyGlobals.inputInterfaceIndex != NO_INTERFACE_INDEX)
return(readOnlyGlobals.inputInterfaceIndex);
} else {
if(readOnlyGlobals.outputInterfaceIndex != NO_INTERFACE_INDEX)
return(readOnlyGlobals.outputInterfaceIndex);
}
/* ...else dynamic */
/* Calculate the input/output interface using
the last two MAC address bytes */
if(direction == src2dst_direction /* src -> dst */) {
if(inputIf)
mac = &(myBucket->srcMacAddress[4]);
else
mac = &(myBucket->dstMacAddress[4]);
} else {
if(inputIf)
mac = &(myBucket->dstMacAddress[4]);
else
mac = &(myBucket->srcMacAddress[4]);
}
idx = (mac[0] * 256) + mac[1];
return(idx);
}
/* ******************************************** */
static char* port2name(u_int16_t port, u_int8_t proto) {
#if 0
struct servent *svt;
if((svt = getservbyport(htons(port), proto2name(proto))) != NULL)
return(svt->s_name);
else {
static char the_port[8];
snprintf(the_port, sizeof(the_port), "%d", port);
return(the_port);
}
#else
if(port_mapping[port] != NULL)
return(port_mapping[port]);
else if(proto == 6) return("tcp_other");
else if(proto == 17) return("udp_other");
else return("<unknown>"); /* Not reached */
#endif
}
/* **************************************************************** */
void reset_bitmask(bitmask_selector *selector) {
memset((char*)selector->bits_memory, 0, selector->num_bits/8);
}
/* **************************************************************** */
int alloc_bitmask(u_int32_t tot_bits, bitmask_selector *selector) {
uint tot_mem = 1 + (tot_bits >> 3); /* /= 8 */
if((selector->bits_memory = malloc(tot_mem)) != NULL) {
} else {
selector->num_bits = 0;
return(-1);
}
selector->num_bits = tot_bits;
reset_bitmask(selector);
return(0);
}
/* ********************************** */
void free_bitmask(bitmask_selector *selector) {
if(selector->bits_memory > 0) {
free(selector->bits_memory);
selector->bits_memory = 0;
}
}
/* ******************************************** */
void bitmask_set(u_int32_t n, bitmask_selector* p) { (((char*)p->bits_memory)[n >> 3] |= (1 << (n & 7))); }
void bitmask_clr(u_int32_t n, bitmask_selector* p) { (((char*)p->bits_memory)[n >> 3] &= ~(1 << (n & 7))); }
u_int8_t bitmask_isset(u_int32_t n, bitmask_selector* p) { return(((char*)p->bits_memory)[n >> 3] & (1 << (n & 7))); }
/* ******************************************** */
void loadApplProtocols(void) {
struct servent *s;
alloc_bitmask(65536, &readOnlyGlobals.udpProto);
alloc_bitmask(65536, &readOnlyGlobals.tcpProto);
#ifndef WIN32
setservent(1);
#endif
while((s = getservent()) != NULL) {
s->s_port = ntohs(s->s_port);
if(s->s_proto[0] == 'u')
bitmask_set(s->s_port, &readOnlyGlobals.udpProto);
else
bitmask_set(s->s_port, &readOnlyGlobals.tcpProto);
}
endservent();
/* Add extra protocols (if missing) */
bitmask_set(4343 /* das */, &readOnlyGlobals.tcpProto);
bitmask_set(80 /* http */, &readOnlyGlobals.tcpProto);
bitmask_set(43 /* whois */, &readOnlyGlobals.tcpProto);
bitmask_set(443 /* https */, &readOnlyGlobals.tcpProto);
bitmask_set(25 /* smtp */, &readOnlyGlobals.tcpProto);
bitmask_set(53 /* dns */, &readOnlyGlobals.udpProto);
}
/* ******************************************** */
u_int16_t port2ApplProtocol(u_int8_t proto, u_int16_t port) {
u_int16_t value;
if(proto == IPPROTO_TCP)
value = bitmask_isset(port, &readOnlyGlobals.tcpProto);
else if(proto == IPPROTO_UDP)
value = bitmask_isset(port, &readOnlyGlobals.udpProto);
else
value = 0;
return(value ? port : 0);
}
/* ******************************************** */
u_int16_t getFlowApplProtocol(FlowHashBucket *theFlow) {
u_int16_t value;
u_int16_t proto_sport = port2ApplProtocol(theFlow->proto, theFlow->sport);
u_int16_t proto_dport = port2ApplProtocol(theFlow->proto, theFlow->dport);
if((theFlow->proto == IPPROTO_TCP) || (theFlow->proto == IPPROTO_UDP)) {
if(proto_sport == 0) value = proto_dport;
else if(proto_dport == 0) value = proto_sport;
else {
if(theFlow->sport < theFlow->dport) value = proto_sport;
else value = proto_dport;
}
} else
value = 0;
// traceEvent(TRACE_ERROR, "[%u/%u] -> %u", theFlow->sport, theFlow->dport, value);
return(value);
}
/* ******************************************** */
static void handleTemplate(V9V10TemplateElementId *theTemplateElement,
u_int8_t ipv4_template,
char *outBuffer, uint *outBufferBegin,
uint *outBufferMax,
char buildTemplate, int *numElements,
FlowHashBucket *theFlow, FlowDirection direction,
int addTypeLen, int optionTemplate) {
#ifdef HAVE_GEOIP
GeoIPRecord *geo;
#endif
u_char null_data[128] = { 0 };
u_int16_t t16;
if(buildTemplate || addTypeLen) {
/* Type */
t16 = theTemplateElement->templateElementId;
if((readOnlyGlobals.netFlowVersion == 10)
&& (theTemplateElement->templateElementEnterpriseId != STANDARD_ENTERPRISE_ID)) {
if(theTemplateElement->templateElementEnterpriseId == NTOP_ENTERPRISE_ID)
t16 -= NTOP_BASE_ID; /* Just to make sure we don't mess-up the template */
t16 = t16 | 0x8000; /* Enable the PEN bit */
}
copyInt16(t16, outBuffer, outBufferBegin, outBufferMax);
/* Len */
if((readOnlyGlobals.netFlowVersion == 10)
&& (theTemplateElement->variableFieldLength == VARIABLE_FIELD_LEN)) {
t16 = 65535; /* Reserved len as specified in rfc5101 */
} else
t16 = theTemplateElement->templateElementLen;
copyInt16(t16, outBuffer, outBufferBegin, outBufferMax);
if((readOnlyGlobals.netFlowVersion == 10)
&& (theTemplateElement->templateElementEnterpriseId != STANDARD_ENTERPRISE_ID)) {
/* PEN */
copyInt32(theTemplateElement->templateElementEnterpriseId,
outBuffer, outBufferBegin, outBufferMax);
}
}
if(!buildTemplate) {
if(theTemplateElement->templateElementLen == 0)
; /* Nothing to do: all fields have zero length */
else {
u_char custom_field[CUSTOM_FIELD_LEN];
#ifdef DEBUG
traceEvent(TRACE_INFO, "[%d][%s][%d]",
theTemplateElement->templateElementId,
theTemplateElement->templateElementName,
theTemplateElement->templateElementLen);
#endif
if(theTemplateElement->isOptionTemplate) {
copyLen(null_data, theTemplateElement->templateElementLen,
outBuffer, outBufferBegin, outBufferMax);
} else {
/*
* IMPORTANT
*
* Any change below need to be ported also in printRecordWithTemplate()
*
*/
switch(theTemplateElement->templateElementId) {
case 1:
copyInt32(direction == dst2src_direction ? theFlow->flowCounters.bytesRcvd : theFlow->flowCounters.bytesSent,
outBuffer, outBufferBegin, outBufferMax);
break;
case 2:
copyInt32(direction == dst2src_direction ? theFlow->flowCounters.pktRcvd : theFlow->flowCounters.pktSent,
outBuffer, outBufferBegin, outBufferMax);
break;
case 4:
copyInt8((u_int8_t)theFlow->proto, outBuffer, outBufferBegin, outBufferMax);
break;
case 5:
copyInt8(direction == src2dst_direction ? theFlow->src2dstTos : theFlow->dst2srcTos,
outBuffer, outBufferBegin, outBufferMax);
break;
case 6:
copyInt8(direction == src2dst_direction ? theFlow->src2dstTcpFlags : theFlow->dst2srcTcpFlags,
outBuffer, outBufferBegin, outBufferMax);
break;
case 7:
copyInt16(direction == src2dst_direction ? theFlow->sport : theFlow->dport, outBuffer, outBufferBegin, outBufferMax);
break;
case 8:
if((theFlow->src->host.ipVersion == 4) && (theFlow->dst->host.ipVersion == 4))
copyInt32(direction == src2dst_direction ? theFlow->src->host.ipType.ipv4 : theFlow->dst->host.ipType.ipv4,
outBuffer, outBufferBegin, outBufferMax);
else
copyInt32(0, outBuffer, outBufferBegin, outBufferMax);
break;