/*
* ndpi_main.c
*
* Copyright (C) 2011-18 - ntop.org
*
* This file is part of nDPI, an open source deep packet inspection
* library based on the OpenDPI and PACE technology by ipoque GmbH
*
* nDPI is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* nDPI 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with nDPI. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include "ndpi_config.h"
#endif
#include <stdlib.h>
#include <errno.h>
#include "ahocorasick.h"
#include "libcache.h"
#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_UNKNOWN
#include "ndpi_api.h"
#include "ndpi_config.h"
#include <time.h>
#ifndef WIN32
#include <unistd.h>
#endif
#include "ndpi_content_match.c.inc"
#include "third_party/include/ndpi_patricia.h"
#include "third_party/src/ndpi_patricia.c"
#include "third_party/include/hash.h"
#include "third_party/src/hash.c"
#ifdef HAVE_HYPERSCAN
#include <hs/hs.h>
#endif
#ifdef HAVE_HYPERSCAN
struct hs {
hs_database_t *database;
hs_scratch_t *scratch;
};
#endif
#define NDPI_CONST_GENERIC_PROTOCOL_NAME "GenericProtocol"
static int _ndpi_debug_callbacks = 0;
// #define MATCH_DEBUG 1
/* implementation of the punycode check function */
int check_punycode_string(char * buffer , int len)
{
int i = 0;
while(i++ < len)
{
if( buffer[i] == 'x' &&
buffer[i+1] == 'n' &&
buffer[i+2] == '-' &&
buffer[i+3] == '-' )
// is a punycode string
return 1;
}
// not a punycode string
return 0;
}
/* ftp://ftp.cc.uoc.gr/mirrors/OpenBSD/src/lib/libc/stdlib/tsearch.c */
/* find or insert datum into search tree */
void * ndpi_tsearch(const void *vkey, void **vrootp,
int (*compar)(const void *, const void *))
{
ndpi_node *q;
char *key = (char *)vkey;
ndpi_node **rootp = (ndpi_node **)vrootp;
if(rootp == (ndpi_node **)0)
return ((void *)0);
while (*rootp != (ndpi_node *)0) { /* Knuth's T1: */
int r;
if((r = (*compar)(key, (*rootp)->key)) == 0) /* T2: */
return ((void *)*rootp); /* we found it! */
rootp = (r < 0) ?
&(*rootp)->left : /* T3: follow left branch */
&(*rootp)->right; /* T4: follow right branch */
}
q = (ndpi_node *) ndpi_malloc(sizeof(ndpi_node)); /* T5: key not found */
if(q != (ndpi_node *)0) { /* make new node */
*rootp = q; /* link new node to old */
q->key = key; /* initialize new node */
q->left = q->right = (ndpi_node *)0;
}
return ((void *)q);
}
/* delete node with given key */
void * ndpi_tdelete(const void *vkey, void **vrootp,
int (*compar)(const void *, const void *))
{
ndpi_node **rootp = (ndpi_node **)vrootp;
char *key = (char *)vkey;
ndpi_node *p = (ndpi_node *)1;
ndpi_node *q;
ndpi_node *r;
int cmp;
if(rootp == (ndpi_node **)0 || *rootp == (ndpi_node *)0)
return ((ndpi_node *)0);
while ((cmp = (*compar)(key, (*rootp)->key)) != 0) {
p = *rootp;
rootp = (cmp < 0) ?
&(*rootp)->left : /* follow left branch */
&(*rootp)->right; /* follow right branch */
if(*rootp == (ndpi_node *)0)
return ((void *)0); /* key not found */
}
r = (*rootp)->right; /* D1: */
if((q = (*rootp)->left) == (ndpi_node *)0) /* Left (ndpi_node *)0? */
q = r;
else if(r != (ndpi_node *)0) { /* Right link is null? */
if(r->left == (ndpi_node *)0) { /* D2: Find successor */
r->left = q;
q = r;
} else { /* D3: Find (ndpi_node *)0 link */
for(q = r->left; q->left != (ndpi_node *)0; q = r->left)
r = q;
r->left = q->right;
q->left = (*rootp)->left;
q->right = (*rootp)->right;
}
}
ndpi_free((ndpi_node *) *rootp); /* D4: Free node */
*rootp = q; /* link parent to new node */
return(p);
}
/* Walk the nodes of a tree */
static void ndpi_trecurse(ndpi_node *root, void (*action)(const void *, ndpi_VISIT, int, void*), int level, void *user_data)
{
if(root->left == (ndpi_node *)0 && root->right == (ndpi_node *)0)
(*action)(root, ndpi_leaf, level, user_data);
else {
(*action)(root, ndpi_preorder, level, user_data);
if(root->left != (ndpi_node *)0)
ndpi_trecurse(root->left, action, level + 1, user_data);
(*action)(root, ndpi_postorder, level, user_data);
if(root->right != (ndpi_node *)0)
ndpi_trecurse(root->right, action, level + 1, user_data);
(*action)(root, ndpi_endorder, level, user_data);
}
}
/* Walk the nodes of a tree */
void ndpi_twalk(const void *vroot, void (*action)(const void *, ndpi_VISIT, int, void *), void *user_data)
{
ndpi_node *root = (ndpi_node *)vroot;
if(root != (ndpi_node *)0 && action != (void (*)(const void *, ndpi_VISIT, int, void*))0)
ndpi_trecurse(root, action, 0, user_data);
}
/* find a node, or return 0 */
void * ndpi_tfind(const void *vkey, void *vrootp,
int (*compar)(const void *, const void *))
{
char *key = (char *)vkey;
ndpi_node **rootp = (ndpi_node **)vrootp;
if(rootp == (ndpi_node **)0)
return ((ndpi_node *)0);
while (*rootp != (ndpi_node *)0) { /* T1: */
int r;
if((r = (*compar)(key, (*rootp)->key)) == 0) /* T2: */
return (*rootp); /* key found */
rootp = (r < 0) ?
&(*rootp)->left : /* T3: follow left branch */
&(*rootp)->right; /* T4: follow right branch */
}
return (ndpi_node *)0;
}
/* ****************************************** */
/* Walk the nodes of a tree */
static void ndpi_tdestroy_recurse(ndpi_node* root, void (*free_action)(void *))
{
if(root->left != NULL)
ndpi_tdestroy_recurse(root->left, free_action);
if(root->right != NULL)
ndpi_tdestroy_recurse(root->right, free_action);
(*free_action) ((void *) root->key);
ndpi_free(root);
}
void ndpi_tdestroy(void *vrootp, void (*freefct)(void *))
{
ndpi_node *root = (ndpi_node *) vrootp;
if(root != NULL)
ndpi_tdestroy_recurse(root, freefct);
}
/* ****************************************** */
u_int8_t ndpi_net_match(u_int32_t ip_to_check,
u_int32_t net,
u_int32_t num_bits)
{
u_int32_t mask = 0;
mask = ~(~mask >> num_bits);
return(((ip_to_check & mask) == (net & mask)) ? 1 : 0);
}
u_int8_t ndpi_ips_match(u_int32_t src, u_int32_t dst,
u_int32_t net, u_int32_t num_bits)
{
return(ndpi_net_match(src, net, num_bits) || ndpi_net_match(dst, net, num_bits));
}
/* ****************************************** */
static void *(*_ndpi_flow_malloc)(size_t size);
static void (*_ndpi_flow_free)(void *ptr);
static void *(*_ndpi_malloc)(size_t size);
static void (*_ndpi_free)(void *ptr);
/* ****************************************** */
#ifdef WIN32
/* http://opensource.apple.com/source/Libc/Libc-186/string.subproj/strcasecmp.c */
/*
* This array is designed for mapping upper and lower case letter
* together for a case independent comparison. The mappings are
* based upon ascii character sequences.
*/
static const u_char charmap[] = {
'\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
'\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
'\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
'\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
'\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
'\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
'\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
'\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
'\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
'\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
'\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
'\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
'\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
'\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
'\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
'\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
'\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
'\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
'\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
'\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
'\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
'\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
'\300', '\301', '\302', '\303', '\304', '\305', '\306', '\307',
'\310', '\311', '\312', '\313', '\314', '\315', '\316', '\317',
'\320', '\321', '\322', '\323', '\324', '\325', '\326', '\327',
'\330', '\331', '\332', '\333', '\334', '\335', '\336', '\337',
'\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
'\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
'\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
'\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
};
int strcasecmp(s1, s2)
const char *s1, *s2;
{
register const u_char *cm = charmap,
*us1 = (const u_char *)s1,
*us2 = (const u_char *)s2;
while (cm[*us1] == cm[*us2++])
if(*us1++ == '\0')
return (0);
return (cm[*us1] - cm[*--us2]);
}
int strncasecmp(s1, s2, n)
const char *s1, *s2;
register size_t n;
{
if(n != 0) {
register const u_char *cm = charmap,
*us1 = (const u_char *)s1,
*us2 = (const u_char *)s2;
do {
if(cm[*us1] != cm[*us2++])
return (cm[*us1] - cm[*--us2]);
if(*us1++ == '\0')
break;
} while (--n != 0);
}
return (0);
}
#endif
/* ****************************************** */
/* Forward */
static void addDefaultPort(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_port_range *range,
ndpi_proto_defaults_t *def,
u_int8_t customUserProto,
ndpi_default_ports_tree_node_t **root,
const char *_func, int _line);
static int removeDefaultPort(ndpi_port_range *range,
ndpi_proto_defaults_t *def,
ndpi_default_ports_tree_node_t **root);
/* ****************************************** */
void * ndpi_malloc(size_t size) { return(_ndpi_malloc ? _ndpi_malloc(size) : malloc(size)); }
void * ndpi_flow_malloc(size_t size) { return(_ndpi_flow_malloc ? _ndpi_flow_malloc(size) : ndpi_malloc(size)); }
/* ****************************************** */
void * ndpi_calloc(unsigned long count, size_t size)
{
size_t len = count*size;
void *p = ndpi_malloc(len);
if(p)
memset(p, 0, len);
return(p);
}
/* ****************************************** */
void ndpi_free(void *ptr) {
if(_ndpi_free)
_ndpi_free(ptr);
else
free(ptr);
}
/* ****************************************** */
void ndpi_flow_free(void *ptr) {
if(_ndpi_flow_free)
_ndpi_flow_free(ptr);
else
ndpi_free_flow((struct ndpi_flow_struct *) ptr);
}
/* ****************************************** */
void * ndpi_realloc(void *ptr, size_t old_size, size_t new_size)
{
void *ret = ndpi_malloc(new_size);
if(!ret)
return(ret);
else {
memcpy(ret, ptr, old_size);
ndpi_free(ptr);
return(ret);
}
}
/* ****************************************** */
char * ndpi_strdup(const char *s)
{
int len = strlen(s);
char *m = ndpi_malloc(len+1);
if(m) {
memcpy(m, s, len);
m[len] = '\0';
}
return(m);
}
/* *********************************************************************************** */
u_int32_t ndpi_detection_get_sizeof_ndpi_flow_struct(void) { return sizeof(struct ndpi_flow_struct); }
/* *********************************************************************************** */
u_int32_t ndpi_detection_get_sizeof_ndpi_id_struct(void) { return sizeof(struct ndpi_id_struct); }
/* *********************************************************************************** */
char * ndpi_get_proto_by_id(struct ndpi_detection_module_struct *ndpi_mod, u_int id)
{
return((id >= ndpi_mod->ndpi_num_supported_protocols) ? NULL : ndpi_mod->proto_defaults[id].protoName);
}
/* *********************************************************************************** */
u_int16_t ndpi_get_proto_by_name(struct ndpi_detection_module_struct *ndpi_mod, const char *name)
{
u_int16_t i, num = ndpi_get_num_supported_protocols(ndpi_mod);
for(i = 0; i < num; i++)
if(strcasecmp(ndpi_get_proto_by_id(ndpi_mod, i), name) == 0)
return(i);
return(NDPI_PROTOCOL_UNKNOWN);
}
/* ************************************************************************************* */
ndpi_port_range * ndpi_build_default_ports_range(ndpi_port_range *ports,
u_int16_t portA_low, u_int16_t portA_high,
u_int16_t portB_low, u_int16_t portB_high,
u_int16_t portC_low, u_int16_t portC_high,
u_int16_t portD_low, u_int16_t portD_high,
u_int16_t portE_low, u_int16_t portE_high)
{
int i = 0;
ports[i].port_low = portA_low, ports[i].port_high = portA_high; i++;
ports[i].port_low = portB_low, ports[i].port_high = portB_high; i++;
ports[i].port_low = portC_low, ports[i].port_high = portC_high; i++;
ports[i].port_low = portD_low, ports[i].port_high = portD_high; i++;
ports[i].port_low = portE_low, ports[i].port_high = portE_high; i++;
return(ports);
}
/* *********************************************************************************** */
ndpi_port_range * ndpi_build_default_ports(ndpi_port_range *ports,
u_int16_t portA,
u_int16_t portB,
u_int16_t portC,
u_int16_t portD,
u_int16_t portE)
{
int i = 0;
ports[i].port_low = portA, ports[i].port_high = portA; i++;
ports[i].port_low = portB, ports[i].port_high = portB; i++;
ports[i].port_low = portC, ports[i].port_high = portC; i++;
ports[i].port_low = portD, ports[i].port_high = portD; i++;
ports[i].port_low = portE, ports[i].port_high = portE; i++;
return(ports);
}
/* ********************************************************************************** */
void ndpi_set_proto_breed(struct ndpi_detection_module_struct *ndpi_mod,
u_int16_t protoId, ndpi_protocol_breed_t breed) {
if(protoId >= NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS)
return;
else
ndpi_mod->proto_defaults[protoId].protoBreed = breed;
}
/* ********************************************************************************** */
void ndpi_set_proto_category(struct ndpi_detection_module_struct *ndpi_mod,
u_int16_t protoId, ndpi_protocol_category_t protoCategory) {
if(protoId >= NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS)
return;
else
ndpi_mod->proto_defaults[protoId].protoCategory = protoCategory;
}
/* ********************************************************************************** */
/*
There are some (master) protocols that are informative, meaning that it shows
what is the subprotocol about, but also that the subprotocol isn't a real protocol.
Example:
- DNS is informative as if we see a DNS request for www.facebook.com, the
returned protocol is DNS.Facebook, but Facebook isn't a real subprotocol but
rather it indicates a query for Facebook and not Facebook traffic.
- HTTP/SSL are NOT informative as SSL.Facebook (likely) means that this is
SSL (HTTPS) traffic containg Facebook traffic.
*/
u_int8_t ndpi_is_subprotocol_informative(struct ndpi_detection_module_struct *ndpi_mod,
u_int16_t protoId) {
if(protoId >= NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS)
return(0);
switch(protoId) {
case NDPI_PROTOCOL_DNS:
return(1);
break;
default:
return(0);
}
}
/* ********************************************************************************** */
void ndpi_exclude_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t protocol_id,
const char *_file, const char *_func,int _line) {
if(protocol_id < NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS) {
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
if( ndpi_struct &&
ndpi_struct->ndpi_log_level >= NDPI_LOG_DEBUG &&
ndpi_struct->ndpi_debug_printf != NULL) {
(*(ndpi_struct->ndpi_debug_printf))(protocol_id, ndpi_struct, NDPI_LOG_DEBUG,
_file, _func, _line, "exclude %s\n",ndpi_get_proto_name(ndpi_struct, protocol_id));
}
#endif
NDPI_ADD_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, protocol_id);
}
}
/* ********************************************************************************** */
void ndpi_set_proto_defaults(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol_breed_t breed, u_int16_t protoId,
u_int16_t tcp_master_protoId[2], u_int16_t udp_master_protoId[2],
char *protoName, ndpi_protocol_category_t protoCategory,
ndpi_port_range *tcpDefPorts, ndpi_port_range *udpDefPorts) {
char *name;
int j;
if(protoId >= NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS) {
#ifdef DEBUG
NDPI_LOG_ERR(ndpi_mod, "[NDPI] %s/protoId=%d: INTERNAL ERROR\n", protoName, protoId);
#endif
return;
}
if(ndpi_mod->proto_defaults[protoId].protoName != NULL) {
#ifdef DEBUG
NDPI_LOG_ERR(ndpi_mod, "[NDPI] %s/protoId=%d: already initialized. Ignoring it\n", protoName, protoId);
#endif
return;
}
name = ndpi_strdup(protoName);
ndpi_mod->proto_defaults[protoId].protoName = name,
ndpi_mod->proto_defaults[protoId].protoCategory = protoCategory,
ndpi_mod->proto_defaults[protoId].protoId = protoId,
ndpi_mod->proto_defaults[protoId].protoBreed = breed;
memcpy(&ndpi_mod->proto_defaults[protoId].master_tcp_protoId, tcp_master_protoId, 2*sizeof(u_int16_t));
memcpy(&ndpi_mod->proto_defaults[protoId].master_udp_protoId, udp_master_protoId, 2*sizeof(u_int16_t));
for(j=0; j<MAX_DEFAULT_PORTS; j++) {
if(udpDefPorts[j].port_low != 0)
addDefaultPort(ndpi_mod, &udpDefPorts[j],
&ndpi_mod->proto_defaults[protoId], 0, &ndpi_mod->udpRoot, __FUNCTION__,__LINE__);
if(tcpDefPorts[j].port_low != 0)
addDefaultPort(ndpi_mod, &tcpDefPorts[j],
&ndpi_mod->proto_defaults[protoId], 0, &ndpi_mod->tcpRoot, __FUNCTION__,__LINE__);
}
}
/* ******************************************************************** */
static int ndpi_default_ports_tree_node_t_cmp(const void *a, const void *b)
{
ndpi_default_ports_tree_node_t *fa = (ndpi_default_ports_tree_node_t*)a;
ndpi_default_ports_tree_node_t *fb = (ndpi_default_ports_tree_node_t*)b;
//printf("[NDPI] %s(%d, %d)\n", __FUNCTION__, fa->default_port, fb->default_port);
return((fa->default_port == fb->default_port) ? 0 : ((fa->default_port < fb->default_port) ? -1 : 1));
}
/* ******************************************************************** */
void ndpi_default_ports_tree_node_t_walker(const void *node, const ndpi_VISIT which, const int depth)
{
ndpi_default_ports_tree_node_t *f = *(ndpi_default_ports_tree_node_t **)node;
printf("<%d>Walk on node %s (%u)\n",
depth,
which == ndpi_preorder?"ndpi_preorder":
which == ndpi_postorder?"ndpi_postorder":
which == ndpi_endorder?"ndpi_endorder":
which == ndpi_leaf?"ndpi_leaf": "unknown",
f->default_port);
}
/* ******************************************************************** */
static void addDefaultPort(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_port_range *range,
ndpi_proto_defaults_t *def,
u_int8_t customUserProto,
ndpi_default_ports_tree_node_t **root,
const char *_func, int _line)
{
ndpi_default_ports_tree_node_t *ret;
u_int16_t port;
for(port=range->port_low; port<=range->port_high; port++) {
ndpi_default_ports_tree_node_t *node = (ndpi_default_ports_tree_node_t*)ndpi_malloc(sizeof(ndpi_default_ports_tree_node_t));
if(!node) {
NDPI_LOG_ERR(ndpi_mod, "%s:%d not enough memory\n", _func, _line);
break;
}
node->proto = def, node->default_port = port, node->customUserProto = customUserProto;
ret = *(ndpi_default_ports_tree_node_t**)ndpi_tsearch(node, (void*)root, ndpi_default_ports_tree_node_t_cmp); /* Add it to the tree */
if(ret != node) {
NDPI_LOG_DBG(ndpi_mod, "[NDPI] %s:%d found duplicate for port %u: overwriting it with new value\n",
_func, _line, port);
ret->proto = def;
ndpi_free(node);
}
}
}
/* ****************************************************** */
/*
NOTE
This function must be called with a semaphore set, this in order to avoid
changing the datastructures while using them
*/
static int removeDefaultPort(ndpi_port_range *range,
ndpi_proto_defaults_t *def,
ndpi_default_ports_tree_node_t **root)
{
ndpi_default_ports_tree_node_t node;
ndpi_default_ports_tree_node_t *ret;
u_int16_t port;
for(port=range->port_low; port<=range->port_high; port++) {
node.proto = def, node.default_port = port;
ret = *(ndpi_default_ports_tree_node_t**)ndpi_tdelete(&node, (void*)root,
ndpi_default_ports_tree_node_t_cmp); /* Add it to the tree */
if(ret != NULL) {
ndpi_free((ndpi_default_ports_tree_node_t*)ret);
return(0);
}
}
return(-1);
}
/* ****************************************************** */
static int ndpi_string_to_automa(struct ndpi_detection_module_struct *ndpi_struct,
ndpi_automa *automa,
char *value, u_int16_t protocol_id,
ndpi_protocol_category_t category,
ndpi_protocol_breed_t breed) {
AC_PATTERN_t ac_pattern;
if(protocol_id >= (NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS)) {
NDPI_LOG_ERR(ndpi_struct, "[NDPI] protoId=%d: INTERNAL ERROR\n", protocol_id);
return(-1);
}
if(automa->ac_automa == NULL) return(-2);
ac_pattern.astring = value,
ac_pattern.rep.number = protocol_id,
ac_pattern.rep.category = (u_int16_t)category,
ac_pattern.rep.breed = (u_int16_t)breed;
#ifdef MATCH_DEBUG
printf("Adding to automa [%s][protocol_id: %u][category: %u][breed: %u]\n",
value, protocol_id, category, breed);
#endif
if(value == NULL)
ac_pattern.length = 0;
else
ac_pattern.length = strlen(ac_pattern.astring);
ac_automata_add(((AC_AUTOMATA_t*)automa->ac_automa), &ac_pattern);
return(0);
}
/* ****************************************************** */
static int ndpi_add_host_url_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
char *value, int protocol_id,
ndpi_protocol_category_t category,
ndpi_protocol_breed_t breed)
{
#ifdef DEBUG
NDPI_LOG_DEBUG2(ndpi_struct, "[NDPI] Adding [%s][%d]\n", value, protocol_id);
#endif
return(ndpi_string_to_automa(ndpi_struct, &ndpi_struct->host_automa, value, protocol_id,
category, breed));
}
/* ****************************************************** */
int ndpi_add_content_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
char *value, int protocol_id,
ndpi_protocol_category_t category,
ndpi_protocol_breed_t breed) {
return(ndpi_string_to_automa(ndpi_struct, &ndpi_struct->content_automa,
value, protocol_id, category, breed));
}
/* ****************************************************** */
/*
NOTE
This function must be called with a semaphore set, this in order to avoid
changing the datastructures while using them
*/
static int ndpi_remove_host_url_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
char *value, int protocol_id)
{
NDPI_LOG_ERR(ndpi_struct, "[NDPI] Missing implementation for proto %s/%d\n",value,protocol_id);
return(-1);
}
/* ******************************************************************** */
void ndpi_init_protocol_match(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol_match *match)
{
u_int16_t no_master[2] = { NDPI_PROTOCOL_NO_MASTER_PROTO, NDPI_PROTOCOL_NO_MASTER_PROTO };
ndpi_port_range ports_a[MAX_DEFAULT_PORTS], ports_b[MAX_DEFAULT_PORTS];
static u_int16_t generic_id = NDPI_LAST_IMPLEMENTED_PROTOCOL;
u_int16_t p_id;
if(ndpi_mod->proto_defaults[match->protocol_id].protoName == NULL) {
if(match->protocol_id == NDPI_PROTOCOL_GENERIC)
ndpi_mod->proto_defaults[match->protocol_id].protoName = ndpi_strdup(NDPI_CONST_GENERIC_PROTOCOL_NAME);
else
ndpi_mod->proto_defaults[match->protocol_id].protoName = ndpi_strdup(match->proto_name);
ndpi_mod->proto_defaults[match->protocol_id].protoId = match->protocol_id;
ndpi_mod->proto_defaults[match->protocol_id].protoCategory = match->protocol_category;
ndpi_mod->proto_defaults[match->protocol_id].protoBreed = match->protocol_breed;
ndpi_set_proto_defaults(ndpi_mod,
ndpi_mod->proto_defaults[match->protocol_id].protoBreed,
ndpi_mod->proto_defaults[match->protocol_id].protoId,
no_master, no_master,
ndpi_mod->proto_defaults[match->protocol_id].protoName,
ndpi_mod->proto_defaults[match->protocol_id].protoCategory,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
}
ndpi_add_host_url_subprotocol(ndpi_mod,
match->string_to_match,
match->protocol_id,
match->protocol_category,
match->protocol_breed);
}
/* ******************************************************************** */
#ifdef HAVE_HYPERSCAN
static int hyperscan_load_patterns(struct hs *hs, u_int num_patterns,
const char **expressions, unsigned int *ids) {
hs_compile_error_t *compile_err;
if(hs_compile_multi(expressions, NULL, ids,
num_patterns, HS_MODE_BLOCK, NULL,
&hs->database, &compile_err) != HS_SUCCESS) {
NDPI_LOG_ERR(ndpi_mod, "Unable to initialize hyperscan database\n");
hs_free_compile_error(compile_err);
return -1;
}
hs->scratch = NULL;
if(hs_alloc_scratch(hs->database, &hs->scratch) != HS_SUCCESS) {
NDPI_LOG_ERR(ndpi_mod, "Unable to allocate hyperscan scratch space\n");
hs_free_database(hs->database);
return -1;
}
return 0;
}
/* ******************************************************************** */
static int init_hyperscan(struct ndpi_detection_module_struct *ndpi_mod) {
u_int num_patterns = 0, i;
const char **expressions;
unsigned int *ids;
struct hs *hs;
int rc;
ndpi_mod->hyperscan = (void*)malloc(sizeof(struct hs));
if(!ndpi_mod->hyperscan) return(-1);
hs = (struct hs*)ndpi_mod->hyperscan;
for(i=0; host_match[i].string_to_match != NULL; i++) {
if(host_match[i].pattern_to_match) {
/* printf("[DEBUG] %s\n", host_match[i].pattern_to_match); */
num_patterns++;
}
}
expressions = (const char**)calloc(sizeof(char*), num_patterns+1);
if(!expressions) return(-1);
ids = (unsigned int*)calloc(sizeof(unsigned int), num_patterns+1);
if(!ids) {
free(expressions);
return(-1);
}
for(i=0, num_patterns=0; host_match[i].string_to_match != NULL; i++) {
if(host_match[i].pattern_to_match) {
expressions[num_patterns] = host_match[i].pattern_to_match;
ids[num_patterns] = host_match[i].protocol_id;
num_patterns++;
}
}
rc = hyperscan_load_patterns(hs, num_patterns, expressions, ids);
free(expressions), free(ids);
return(rc);
}
/* ******************************************************************** */
static void free_hyperscan_memory(struct hs *h) {
if(h) {
hs_free_scratch(h->scratch);
hs_free_database(h->database);
}
}
/* ******************************************************************** */
static void destroy_hyperscan(struct ndpi_detection_module_struct *ndpi_mod) {
if(ndpi_mod->hyperscan)
free_hyperscan_memory((struct hs*)ndpi_mod->hyperscan);
}
#endif
/* ******************************************************************** */
static void init_string_based_protocols(struct ndpi_detection_module_struct *ndpi_mod)
{
int i;
#ifdef HAVE_HYPERSCAN
// TODO check return value
init_hyperscan(ndpi_mod);
#endif
for(i=0; host_match[i].string_to_match != NULL; i++)
ndpi_init_protocol_match(ndpi_mod, &host_match[i]);
#ifdef MATCH_DEBUG
// ac_automata_display(ndpi_mod->host_automa.ac_automa, 'n');
#endif
for(i=0; content_match[i].string_to_match != NULL; i++)
ndpi_add_content_subprotocol(ndpi_mod, content_match[i].string_to_match,
content_match[i].protocol_id,
content_match[i].protocol_category,
content_match[i].protocol_breed);
for(i=0; ndpi_en_bigrams[i] != NULL; i++)
ndpi_string_to_automa(ndpi_mod, &ndpi_mod->bigrams_automa,
(char*)ndpi_en_bigrams[i],
1, 1, 1);
for(i=0; ndpi_en_impossible_bigrams[i] != NULL; i++)
ndpi_string_to_automa(ndpi_mod, &ndpi_mod->impossible_bigrams_automa,
(char*)ndpi_en_impossible_bigrams[i],
1, 1, 1);
}
/* ******************************************************************** */
int ndpi_set_detection_preferences(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_detection_preference pref,
int value) {
switch(pref) {
case ndpi_pref_http_dont_dissect_response:
ndpi_mod->http_dont_dissect_response = (u_int8_t)value;
break;
case ndpi_pref_dns_dissect_response:
ndpi_mod->dns_dissect_response = (u_int8_t)value;
break;
case ndpi_pref_direction_detect_disable:
ndpi_mod->direction_detect_disable = (u_int8_t)value;
break;
case ndpi_pref_disable_metadata_export:
ndpi_mod->disable_metadata_export = (u_int8_t)value;
break;
case ndpi_pref_enable_category_substring_match:
ndpi_mod->enable_category_substring_match = (u_int8_t)value;
break;
default:
return(-1);
}
return(0);
}
/* ******************************************************************** */
static void ndpi_validate_protocol_initialization(struct ndpi_detection_module_struct *ndpi_mod) {
int i;
for(i=0; i<(int)ndpi_mod->ndpi_num_supported_protocols; i++) {
if(ndpi_mod->proto_defaults[i].protoName == NULL) {
NDPI_LOG_ERR(ndpi_mod, "[NDPI] INTERNAL ERROR missing protoName initialization for [protoId=%d]: recovering\n", i);
} else {
if((i != NDPI_PROTOCOL_UNKNOWN)
&& (ndpi_mod->proto_defaults[i].protoCategory == NDPI_PROTOCOL_CATEGORY_UNSPECIFIED)) {
NDPI_LOG_ERR(ndpi_mod, "[NDPI] INTERNAL ERROR missing category [protoId=%d/%s] initialization: recovering\n",
i, ndpi_mod->proto_defaults[i].protoName ? ndpi_mod->proto_defaults[i].protoName : "???");
}
}
}
}
/* ******************************************************************** */
/* This function is used to map protocol name and default ports and it MUST
be updated whenever a new protocol is added to NDPI.
Do NOT add web services (NDPI_SERVICE_xxx) here.
*/
static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndpi_mod) {
int i;
ndpi_port_range ports_a[MAX_DEFAULT_PORTS], ports_b[MAX_DEFAULT_PORTS];
u_int16_t no_master[2] = { NDPI_PROTOCOL_NO_MASTER_PROTO, NDPI_PROTOCOL_NO_MASTER_PROTO },
custom_master[2];
/* Reset all settings */
memset(ndpi_mod->proto_defaults, 0, sizeof(ndpi_mod->proto_defaults));
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNRATED, NDPI_PROTOCOL_UNKNOWN,
no_master,
no_master, "Unknown", NDPI_PROTOCOL_CATEGORY_UNSPECIFIED,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_FTP_CONTROL,
no_master,
no_master, "FTP_CONTROL", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 21, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_FTP_DATA,
no_master,
no_master, "FTP_DATA", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 20, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_MAIL_POP,
no_master,
no_master, "POP3", NDPI_PROTOCOL_CATEGORY_MAIL,
ndpi_build_default_ports(ports_a, 110, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_MAIL_POPS,
no_master,
no_master, "POPS", NDPI_PROTOCOL_CATEGORY_MAIL,
ndpi_build_default_ports(ports_a, 995, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MAIL_SMTP,
no_master,
no_master, "SMTP", NDPI_PROTOCOL_CATEGORY_MAIL,
ndpi_build_default_ports(ports_a, 25, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_MAIL_SMTPS,
no_master,
no_master, "SMTPS", NDPI_PROTOCOL_CATEGORY_MAIL,
ndpi_build_default_ports(ports_a, 465, 587, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_MAIL_IMAP,
no_master,
no_master, "IMAP", NDPI_PROTOCOL_CATEGORY_MAIL,
ndpi_build_default_ports(ports_a, 143, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_MAIL_IMAPS,
no_master,
no_master, "IMAPS", NDPI_PROTOCOL_CATEGORY_MAIL,
ndpi_build_default_ports(ports_a, 993, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DNS,
no_master,
no_master, "DNS", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 53, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 53, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IPP,
no_master,
no_master, "IPP", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HEP,
no_master,
no_master, "HEP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 9064, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 9063, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HTTP,
no_master,
no_master, "HTTP", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 80, 0 /* ntop */, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MDNS,
no_master,
no_master, "MDNS", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 5353, 5354, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_NTP,
no_master,
no_master, "NTP", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 123, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_NETBIOS,
no_master,
no_master, "NetBIOS", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 139, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 137, 138, 139, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_NFS,
no_master,
no_master, "NFS", NDPI_PROTOCOL_CATEGORY_DATA_TRANSFER,
ndpi_build_default_ports(ports_a, 2049, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 2049, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SSDP,
no_master,
no_master, "SSDP", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_BGP,
no_master,
no_master, "BGP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 179, 2605, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SNMP,
no_master,
no_master, "SNMP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 161, 162, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_XDMCP,
no_master,
no_master, "XDMCP", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 177, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 177, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SMB,
no_master,
no_master, "SMB", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 445, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SYSLOG,
no_master,
no_master, "Syslog", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 514, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 514, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DHCP,
no_master,
no_master, "DHCP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 67, 68, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_POSTGRES,
no_master,
no_master, "PostgreSQL", NDPI_PROTOCOL_CATEGORY_DATABASE,
ndpi_build_default_ports(ports_a, 5432, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MYSQL,
no_master,
no_master, "MySQL", NDPI_PROTOCOL_CATEGORY_DATABASE,
ndpi_build_default_ports(ports_a, 3306, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_DIRECT_DOWNLOAD_LINK,
no_master,
no_master, "Direct_Download_Link", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_APPLEJUICE,
no_master,
no_master, "AppleJuice", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_DIRECTCONNECT,
no_master,
no_master, "DirectConnect", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_NTOP,
no_master,
no_master, "ntop", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_VMWARE,
no_master,
no_master, "VMware", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 903, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 902, 903, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_FBZERO,
no_master,
no_master, "FacebookZero", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 443, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_KONTIKI,
no_master,
no_master, "Kontiki", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_OPENFT,
no_master,
no_master, "OpenFT", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_FASTTRACK,
no_master,
no_master, "FastTrack", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_GNUTELLA,
no_master,
no_master, "Gnutella", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_EDONKEY,
no_master,
no_master, "eDonkey", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_BITTORRENT,
no_master,
no_master, "BitTorrent", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 51413, 53646, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 6771, 51413, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SKYPE,
no_master,
no_master, "Skype", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SKYPE_CALL_IN,
no_master,
no_master, "SkypeCallIn", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SKYPE_CALL_OUT,
no_master,
no_master, "SkypeCallOut", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TEREDO,
no_master,
no_master, "Teredo", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 3544, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_MUSICALLY,
no_master,
no_master, "Musical.ly", NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MEMCACHED,
no_master,
no_master, "Memcached", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 11211, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 11211, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_41,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_42,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_43,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_44,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_45,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_46,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_196,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_205,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_VIDTO,
no_master,
no_master, "PPStream", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_XBOX,
no_master,
no_master, "Xbox", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_QQ,
no_master,
no_master, "QQ", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_RTSP,
no_master,
no_master, "RTSP", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 554, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 554, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_ICECAST,
no_master,
no_master, "IceCast", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_PPLIVE,
no_master,
no_master, "PPLive", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_PPSTREAM,
no_master,
no_master, "PPStream", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_ZATTOO,
no_master,
no_master, "Zattoo", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_SHOUTCAST,
no_master,
no_master, "ShoutCast", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_SOPCAST,
no_master,
no_master, "Sopcast", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_TVANTS,
no_master,
no_master, "Tvants", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_TVUPLAYER,
no_master,
no_master, "TVUplayer", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HTTP_DOWNLOAD,
no_master,
no_master, "HTTP_Download", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_QQLIVE,
no_master,
no_master, "QQLive", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_THUNDER,
no_master,
no_master, "Thunder", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_SOULSEEK,
no_master,
no_master, "Soulseek", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
custom_master[0] = NDPI_PROTOCOL_SSL, custom_master[1] = NDPI_PROTOCOL_UNKNOWN;
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SSL_NO_CERT,
custom_master,
no_master, "SSL_No_Cert", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_IRC,
no_master,
no_master, "IRC", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 194, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 194, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_AYIYA,
no_master,
no_master, "Ayiya", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 5072, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_UNENCRYPTED_JABBER,
no_master,
no_master, "Unencrypted_Jabber", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_OSCAR,
no_master,
no_master, "Oscar", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_BATTLEFIELD,
no_master,
no_master, "BattleField", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_VRRP,
no_master,
no_master, "VRRP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_STEAM,
no_master,
no_master, "Steam", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_HALFLIFE2,
no_master,
no_master, "HalfLife2", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_WORLDOFWARCRAFT,
no_master,
no_master, "WorldOfWarcraft", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_HOTSPOT_SHIELD,
no_master,
no_master, "HotspotShield", NDPI_PROTOCOL_CATEGORY_VPN,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_UNSAFE, NDPI_PROTOCOL_TELNET,
no_master,
no_master, "Telnet", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 23, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
custom_master[0] = NDPI_PROTOCOL_SIP, custom_master[1] = NDPI_PROTOCOL_H323;
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_STUN,
no_master,
custom_master, "STUN", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 3478, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_IP_IPSEC,
no_master,
no_master, "IPsec", NDPI_PROTOCOL_CATEGORY_VPN,
ndpi_build_default_ports(ports_a, 500, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 500, 4500, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_GRE,
no_master,
no_master, "GRE", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_ICMP,
no_master,
no_master, "ICMP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_IGMP,
no_master,
no_master, "IGMP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_EGP,
no_master,
no_master, "EGP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_SCTP,
no_master,
no_master, "SCTP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_OSPF,
no_master,
no_master, "OSPF", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 2604, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_IP_IN_IP,
no_master,
no_master, "IP_in_IP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RTP,
no_master,
no_master, "RTP", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RDP,
no_master,
no_master, "RDP", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 3389, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_VNC,
no_master,
no_master, "VNC", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 5900, 5901, 5800, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_PCANYWHERE,
no_master,
no_master, "PcAnywhere", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_WHATSAPP_VOICE,
no_master,
no_master, "WhatsAppVoice", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_WHATSAPP_FILES,
no_master,
no_master, "WhatsAppFiles", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_WHATSAPP,
no_master,
no_master, "WhatsApp", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
custom_master[0] = NDPI_PROTOCOL_SSL_NO_CERT, custom_master[1] = NDPI_PROTOCOL_UNKNOWN;
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_SSL,
no_master,
custom_master, "SSL", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 443, 3001 /* ntop */, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SSH,
no_master,
no_master, "SSH", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 22, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_USENET,
no_master,
no_master, "Usenet", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MGCP,
no_master,
no_master, "MGCP", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IAX,
no_master,
no_master, "IAX", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 4569, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 4569, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_AFP,
no_master,
no_master, "AFP", NDPI_PROTOCOL_CATEGORY_DATA_TRANSFER,
ndpi_build_default_ports(ports_a, 548, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 548, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_CATEGORY_CUSTOM_1,
no_master,
no_master, NDPI_CONST_GENERIC_PROTOCOL_NAME, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_CHECKMK,
no_master,
no_master, "CHECKMK", NDPI_PROTOCOL_CATEGORY_DATA_TRANSFER,
ndpi_build_default_ports(ports_a, 6556, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_STEALTHNET,
no_master,
no_master, "Stealthnet", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_AIMINI,
no_master,
no_master, "Aimini", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SIP,
no_master,
no_master, "SIP", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 5060, 5061, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 5060, 5061, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TRUPHONE,
no_master,
no_master, "TruPhone", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_IP_ICMPV6,
no_master,
no_master, "ICMPV6", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DHCPV6,
no_master,
no_master, "DHCPV6", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_ARMAGETRON,
no_master,
no_master, "Armagetron", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_CROSSFIRE,
no_master,
no_master, "Crossfire", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_DOFUS,
no_master,
no_master, "Dofus", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FIESTA,
no_master,
no_master, "Fiesta", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FLORENSIA,
no_master,
no_master, "Florensia", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_GUILDWARS,
no_master,
no_master, "Guildwars", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HTTP_ACTIVESYNC,
no_master,
no_master, "HTTP_ActiveSync", NDPI_PROTOCOL_CATEGORY_CLOUD,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_KERBEROS,
no_master,
no_master, "Kerberos", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 88, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 88, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_LDAP,
no_master,
no_master, "LDAP", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 389, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 389, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_MAPLESTORY,
no_master,
no_master, "MapleStory", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MSSQL_TDS,
no_master,
no_master, "MsSQL-TDS", NDPI_PROTOCOL_CATEGORY_DATABASE,
ndpi_build_default_ports(ports_a, 1433, 1434, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_PPTP,
no_master,
no_master, "PPTP", NDPI_PROTOCOL_CATEGORY_VPN,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_WARCRAFT3,
no_master,
no_master, "Warcraft3", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_WORLD_OF_KUNG_FU,
no_master,
no_master, "WorldOfKungFu", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DCERPC,
no_master,
no_master, "DCE_RPC", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 135, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_NETFLOW,
no_master,
no_master, "NetFlow", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 2055, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SFLOW,
no_master,
no_master, "sFlow", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 6343, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HTTP_CONNECT,
no_master,
no_master, "HTTP_Connect", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HTTP_PROXY,
no_master,
no_master, "HTTP_Proxy", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 8080, 3128, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_CITRIX,
no_master,
no_master, "Citrix", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 1494, 2598, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_WEBEX,
no_master,
no_master, "Webex", NDPI_PROTOCOL_CATEGORY_COLLABORATIVE,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RADIUS,
no_master,
no_master, "Radius", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 1812, 1813, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 1812, 1813, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TEAMVIEWER,
no_master,
no_master, "TeamViewer", NDPI_PROTOCOL_CATEGORY_REMOTE_ACCESS,
ndpi_build_default_ports(ports_a, 5938, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 5938, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_LOTUS_NOTES,
no_master,
no_master, "LotusNotes", NDPI_PROTOCOL_CATEGORY_COLLABORATIVE,
ndpi_build_default_ports(ports_a, 1352, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SAP,
no_master,
no_master, "SAP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 3201, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */); /* Missing dissector: port based only */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_GTP,
no_master,
no_master, "GTP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 2152, 2123, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_UPNP,
no_master,
no_master, "UPnP", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 1780, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 1900, 0, 0, 0, 0) /* UDP */); /* Missing dissector: port based only */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TELEGRAM,
no_master,
no_master, "Telegram", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_QUIC,
no_master,
no_master, "QUIC", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 443, 80, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DIAMETER,
no_master,
no_master, "Diameter", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 3868, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_APPLE_PUSH,
no_master,
no_master, "ApplePush", NDPI_PROTOCOL_CATEGORY_CLOUD,
ndpi_build_default_ports(ports_a, 1, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DROPBOX,
no_master,
no_master, "Dropbox", NDPI_PROTOCOL_CATEGORY_CLOUD,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 17500, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SPOTIFY,
no_master,
no_master, "Spotify", NDPI_PROTOCOL_CATEGORY_STREAMING,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_LISP,
no_master,
no_master, "LISP", NDPI_PROTOCOL_CATEGORY_CLOUD,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 4342, 4341, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_EAQ,
no_master,
no_master, "EAQ", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 6000, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_KAKAOTALK_VOICE,
no_master,
no_master, "KakaoTalk_Voice", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_MPEGTS,
no_master,
no_master, "MPEG_TS", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
/* http://en.wikipedia.org/wiki/Link-local_Multicast_Name_Resolution */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_LLMNR,
no_master,
no_master, "LLMNR", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 5355, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 5355, 0, 0, 0, 0) /* UDP */); /* Missing dissector: port based only */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_POTENTIALLY_DANGEROUS, NDPI_PROTOCOL_REMOTE_SCAN,
no_master,
no_master, "RemoteScan", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 6077, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 6078, 0, 0, 0, 0) /* UDP */); /* Missing dissector: port based only */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_H323,
no_master,
no_master,"H323", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 1719, 1720, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 1719, 1720, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_OPENVPN,
no_master,
no_master, "OpenVPN", NDPI_PROTOCOL_CATEGORY_VPN,
ndpi_build_default_ports(ports_a, 1194, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 1194, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_NOE,
no_master,
no_master, "NOE", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_CISCOVPN,
no_master,
no_master, "CiscoVPN", NDPI_PROTOCOL_CATEGORY_VPN,
ndpi_build_default_ports(ports_a, 10000, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 10000, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TEAMSPEAK,
no_master,
no_master, "TeamSpeak", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SKINNY,
no_master,
no_master, "CiscoSkinny", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 2000, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RTCP,
no_master,
no_master, "RTCP", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RSYNC,
no_master,
no_master, "RSYNC", NDPI_PROTOCOL_CATEGORY_DATA_TRANSFER,
ndpi_build_default_ports(ports_a, 873, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_ORACLE,
no_master,
no_master, "Oracle", NDPI_PROTOCOL_CATEGORY_DATABASE,
ndpi_build_default_ports(ports_a, 1521, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_CORBA,
no_master,
no_master, "Corba", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_UBUNTUONE,
no_master,
no_master, "UbuntuONE", NDPI_PROTOCOL_CATEGORY_CLOUD,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_WHOIS_DAS,
no_master,
no_master, "Whois-DAS", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 43, 4343, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_COLLECTD,
no_master,
no_master, "Collectd", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 25826, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SOCKS,
no_master,
no_master, "SOCKS", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 1080, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 1080, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TFTP,
no_master,
no_master, "TFTP", NDPI_PROTOCOL_CATEGORY_DATA_TRANSFER,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 69, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RTMP,
no_master,
no_master, "RTMP", NDPI_PROTOCOL_CATEGORY_MEDIA,
ndpi_build_default_ports(ports_a, 1935, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_PANDO,
no_master,
no_master, "Pando_Media_Booster", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MEGACO,
no_master,
no_master, "Megaco", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 2944 , 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_REDIS,
no_master,
no_master, "Redis", NDPI_PROTOCOL_CATEGORY_DATABASE,
ndpi_build_default_ports(ports_a, 6379, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0 , 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_ZMQ,
no_master,
no_master, "ZeroMQ", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0 , 0, 0, 0, 0) ); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_VHUA,
no_master,
no_master, "VHUA", NDPI_PROTOCOL_CATEGORY_VOIP,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 58267, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_STARCRAFT,
no_master,
no_master, "Starcraft", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 1119, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 1119, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_UBNTAC2,
no_master,
no_master, "UBNTAC2", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 10001, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_VIBER,
no_master,
no_master, "Viber", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 7985, 5242, 5243, 4244, 0), /* TCP */
ndpi_build_default_ports(ports_b, 7985, 7987, 5242, 5243, 4244)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_COAP,
no_master,
no_master, "COAP", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 5683, 5684, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_MQTT,
no_master,
no_master, "MQTT", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 1883, 8883, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SOMEIP,
no_master,
no_master, "SOMEIP", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 30491, 30501, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 30491, 30501, 30490, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_RX,
no_master,
no_master, "RX", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_GIT,
no_master,
no_master, "Git", NDPI_PROTOCOL_CATEGORY_COLLABORATIVE,
ndpi_build_default_ports(ports_a, 9418, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_DRDA,
no_master,
no_master, "DRDA", NDPI_PROTOCOL_CATEGORY_DATABASE,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_HANGOUT,
no_master,
no_master, "GoogleHangout", NDPI_PROTOCOL_CATEGORY_CHAT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_BJNP,
no_master,
no_master, "BJNP", NDPI_PROTOCOL_CATEGORY_SYSTEM_OS,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 8612, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_SMPP,
no_master,
no_master, "SMPP", NDPI_PROTOCOL_CATEGORY_DOWNLOAD_FT,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_OOKLA,
no_master,
no_master, "Ookla", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_AMQP,
no_master,
no_master, "AMQP", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_DNSCRYPT,
no_master,
no_master, "DNScrypt", NDPI_PROTOCOL_CATEGORY_NETWORK,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0), /* TCP */
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0)); /* UDP */
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_TINC,
no_master,
no_master, "TINC", NDPI_PROTOCOL_CATEGORY_VPN,
ndpi_build_default_ports(ports_a, 655, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 655, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_SAFE, NDPI_PROTOCOL_FIX,
no_master,
no_master, "FIX", NDPI_PROTOCOL_CATEGORY_RPC,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_NINTENDO,
no_master,
no_master, "Nintendo", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_CSGO,
no_master,
no_master, "CSGO", NDPI_PROTOCOL_CATEGORY_GAME,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE, NDPI_PROTOCOL_AJP,
no_master,
no_master, "AJP", NDPI_PROTOCOL_CATEGORY_WEB,
ndpi_build_default_ports(ports_a, 8009, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
/* calling function for host and content matched protocols */
init_string_based_protocols(ndpi_mod);
ndpi_validate_protocol_initialization(ndpi_mod);
}
/* ****************************************************** */
static int ac_match_handler(AC_MATCH_t *m, AC_TEXT_t *txt, AC_REP_t *match) {
int min_len = (txt->length < m->patterns->length) ? txt->length : m->patterns->length;
char buf[64];
int min_buf_len = (txt->length > 63 /* sizeof(buf)-1 */) ? 63 : txt->length;
u_int buf_len = strlen(buf);
strncpy(buf, txt->astring, min_buf_len);
buf[min_buf_len] = '\0';
#ifdef MATCH_DEBUG
printf("Searching [to search: %s/%u][pattern: %s/%u] [len: %u][match_num: %u][%s]\n",
buf, txt->length, m->patterns->astring, m->patterns->length, min_len,
m->match_num, m->patterns->astring);
#endif
/*
Return 1 for stopping to the first match.
We might consider searching for the more
specific match, paying more cpu cycles.
*/
memcpy(match, &m->patterns[0].rep, sizeof(AC_REP_t));
if(((buf_len >= min_len) && (strncmp(&buf[buf_len-min_len], m->patterns->astring, min_len) == 0))
|| (strncmp(buf, m->patterns->astring, min_len) == 0) /* begins with */
)
{
#ifdef MATCH_DEBUG
printf("Found match [%s][%s] [len: %u][proto_id: %u]\n",
buf, m->patterns->astring, min_len, *matching_protocol_id);
#endif
return(1); /* If the pattern found matches the string at the beginning we stop here */
} else
return 0; /* 0 to continue searching, !0 to stop */
}
/* ******************************************************************** */
static int fill_prefix_v4(prefix_t *p, struct in_addr *a, int b, int mb) {
do {
if(b < 0 || b > mb)
return(-1);
memset(p, 0, sizeof(prefix_t));
memcpy(&p->add.sin, a, (mb+7)/8);
p->family = AF_INET;
p->bitlen = b;
p->ref_count = 0;
} while (0);
return(0);
}
/* ******************************************* */
u_int16_t ndpi_network_ptree_match(struct ndpi_detection_module_struct *ndpi_struct,
struct in_addr *pin /* network byte order */) {
prefix_t prefix;
patricia_node_t *node;
/* Make sure all in network byte order otherwise compares wont work */
fill_prefix_v4(&prefix, pin, 32, ((patricia_tree_t*)ndpi_struct->protocols_ptree)->maxbits);
node = ndpi_patricia_search_best(ndpi_struct->protocols_ptree, &prefix);
return(node ? node->value.user_value : NDPI_PROTOCOL_UNKNOWN);
}
/* ******************************************* */
/* u_int16_t ndpi_host_ptree_match(struct ndpi_detection_module_struct *ndpi_struct, u_int32_t host /\* network byte order *\/) { */
/* struct in_addr pin; */
/* pin.s_addr = host; */
/* return(ndpi_network_ptree_match(ndpi_struct, &pin)); */
/* } */
/* ******************************************* */
#if 0
static u_int8_t tor_ptree_match(struct ndpi_detection_module_struct *ndpi_struct, struct in_addr *pin) {
return((ndpi_network_ptree_match(ndpi_struct, pin) == NDPI_PROTOCOL_TOR) ? 1 : 0);
}
#endif
/* ******************************************* */
u_int8_t ndpi_is_tor_flow(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
struct ndpi_packet_struct *packet = &flow->packet;
if(packet->tcp != NULL) {
if(packet->iph) {
if(flow->guessed_host_protocol_id == NDPI_PROTOCOL_TOR)
return(1);
}
}
return(0);
}
/* ******************************************* */
static patricia_node_t* add_to_ptree(patricia_tree_t *tree, int family,
void *addr, int bits) {
prefix_t prefix;
patricia_node_t *node;
fill_prefix_v4(&prefix, (struct in_addr*)addr, bits, tree->maxbits);
node = ndpi_patricia_lookup(tree, &prefix);
return(node);
}
/* ******************************************* */
static void ndpi_init_ptree_ipv4(struct ndpi_detection_module_struct *ndpi_str,
void *ptree, ndpi_network host_list[]) {
int i;
for(i=0; host_list[i].network != 0x0; i++) {
struct in_addr pin;
patricia_node_t *node;
pin.s_addr = htonl(host_list[i].network);
if((node = add_to_ptree(ptree, AF_INET,
&pin, host_list[i].cidr /* bits */)) != NULL)
node->value.user_value = host_list[i].value;
}
}
/* ******************************************* */
static int ndpi_add_host_ip_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
char *value, int protocol_id) {
patricia_node_t *node;
struct in_addr pin;
int bits = 32;
char *ptr = strrchr(value, '/');
if(ptr) {
ptr[0] = '\0';
ptr++;
if(atoi(ptr)>=0 && atoi(ptr)<=32)
bits = atoi(ptr);
}
inet_pton(AF_INET, value, &pin);
if((node = add_to_ptree(ndpi_struct->protocols_ptree, AF_INET, &pin, bits)) != NULL)
node->value.user_value = protocol_id;
return 0;
}
void set_ndpi_malloc(void* (*__ndpi_malloc)(size_t size)) { _ndpi_malloc = __ndpi_malloc; }
void set_ndpi_flow_malloc(void* (*__ndpi_flow_malloc)(size_t size)) { _ndpi_flow_malloc = __ndpi_flow_malloc; }
void set_ndpi_free(void (*__ndpi_free)(void *ptr)) { _ndpi_free = __ndpi_free; }
void set_ndpi_flow_free(void (*__ndpi_flow_free)(void *ptr)) { _ndpi_flow_free = __ndpi_flow_free; }
void ndpi_debug_printf(unsigned int proto, struct ndpi_detection_module_struct *ndpi_str,
ndpi_log_level_t log_level, const char *file_name, const char *func_name, int line_number,
const char * format, ...)
{
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
va_list args;
#define MAX_STR_LEN 250
char str[MAX_STR_LEN];
if(ndpi_str != NULL && log_level > NDPI_LOG_ERROR &&
proto > 0 && proto < NDPI_MAX_SUPPORTED_PROTOCOLS &&
!NDPI_ISSET(&ndpi_str->debug_bitmask,proto)) return;
va_start(args, format);
vsnprintf(str,sizeof(str)-1, format, args);
va_end(args);
if(ndpi_str != NULL) {
printf("%s:%s:%-3u - [%s]: %s",
file_name, func_name, line_number, ndpi_get_proto_name(ndpi_str, proto), str);
} else {
printf("Proto: %u, %s", proto, str);
}
#endif
}
void set_ndpi_debug_function(struct ndpi_detection_module_struct *ndpi_str, ndpi_debug_function_ptr ndpi_debug_printf) {
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
ndpi_str->ndpi_debug_printf = ndpi_debug_printf;
#endif
}
/* ******************************************************************** */
struct ndpi_detection_module_struct *ndpi_init_detection_module(void) {
struct ndpi_detection_module_struct *ndpi_str = ndpi_malloc(sizeof(struct ndpi_detection_module_struct));
int i;
if(ndpi_str == NULL) {
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
NDPI_LOG_ERR(ndpi_str, "ndpi_init_detection_module initial malloc failed for ndpi_str\n");
#endif /* NDPI_ENABLE_DEBUG_MESSAGES */
return NULL;
}
memset(ndpi_str, 0, sizeof(struct ndpi_detection_module_struct));
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
set_ndpi_debug_function(ndpi_str, (ndpi_debug_function_ptr)ndpi_debug_printf);
#endif /* NDPI_ENABLE_DEBUG_MESSAGES */
if((ndpi_str->protocols_ptree = ndpi_New_Patricia(32 /* IPv4 */)) != NULL)
ndpi_init_ptree_ipv4(ndpi_str, ndpi_str->protocols_ptree, host_protocol_list);
NDPI_BITMASK_RESET(ndpi_str->detection_bitmask);
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
ndpi_str->user_data = NULL;
#endif
ndpi_str->ticks_per_second = 1000; /* ndpi_str->ticks_per_second */
ndpi_str->tcp_max_retransmission_window_size = NDPI_DEFAULT_MAX_TCP_RETRANSMISSION_WINDOW_SIZE;
ndpi_str->directconnect_connection_ip_tick_timeout =
NDPI_DIRECTCONNECT_CONNECTION_IP_TICK_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->rtsp_connection_timeout = NDPI_RTSP_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->tvants_connection_timeout = NDPI_TVANTS_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->irc_timeout = NDPI_IRC_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->gnutella_timeout = NDPI_GNUTELLA_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->battlefield_timeout = NDPI_BATTLEFIELD_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->thunder_timeout = NDPI_THUNDER_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->yahoo_detect_http_connections = NDPI_YAHOO_DETECT_HTTP_CONNECTIONS;
ndpi_str->yahoo_lan_video_timeout = NDPI_YAHOO_LAN_VIDEO_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->zattoo_connection_timeout = NDPI_ZATTOO_CONNECTION_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->jabber_stun_timeout = NDPI_JABBER_STUN_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->jabber_file_transfer_timeout = NDPI_JABBER_FT_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->soulseek_connection_ip_tick_timeout = NDPI_SOULSEEK_CONNECTION_IP_TICK_TIMEOUT * ndpi_str->ticks_per_second;
ndpi_str->ndpi_num_supported_protocols = NDPI_MAX_SUPPORTED_PROTOCOLS;
ndpi_str->ndpi_num_custom_protocols = 0;
ndpi_str->host_automa.ac_automa = ac_automata_init(ac_match_handler);
ndpi_str->content_automa.ac_automa = ac_automata_init(ac_match_handler);
ndpi_str->bigrams_automa.ac_automa = ac_automata_init(ac_match_handler);
ndpi_str->impossible_bigrams_automa.ac_automa = ac_automata_init(ac_match_handler);
#ifdef HAVE_HYPERSCAN
ndpi_str->custom_categories.num_to_load = 0, ndpi_str->custom_categories.to_load = NULL;
ndpi_str->custom_categories.hostnames = NULL;
#else
ndpi_str->custom_categories.hostnames.ac_automa = ac_automata_init(ac_match_handler);
ndpi_str->custom_categories.hostnames_shadow.ac_automa = ac_automata_init(ac_match_handler);
#endif
ndpi_str->custom_categories.hostnames_hash = NULL;
ndpi_str->custom_categories.ipAddresses = ndpi_New_Patricia(32 /* IPv4 */);
ndpi_str->custom_categories.ipAddresses_shadow = ndpi_New_Patricia(32 /* IPv4 */);
if((ndpi_str->custom_categories.ipAddresses == NULL)
|| (ndpi_str->custom_categories.ipAddresses_shadow == NULL))
return(NULL);
ndpi_init_protocol_defaults(ndpi_str);
for(i=0; i<NUM_CUSTOM_CATEGORIES; i++)
snprintf(ndpi_str->custom_category_labels[i],
CUSTOM_CATEGORY_LABEL_LEN, "User custom category %u", i+1);
return ndpi_str;
}
/* *********************************************** */
/* Wrappers */
void* ndpi_init_automa(void) {
return(ac_automata_init(ac_match_handler));
}
int ndpi_add_string_value_to_automa(void *_automa, char *str, unsigned long num) {
AC_PATTERN_t ac_pattern;
AC_AUTOMATA_t *automa = (AC_AUTOMATA_t*)_automa;
if(automa == NULL) return(-1);
memset(&ac_pattern, 0, sizeof(ac_pattern));
ac_pattern.astring = str;
ac_pattern.rep.number = num;
ac_pattern.length = strlen(ac_pattern.astring);
return(ac_automata_add(automa, &ac_pattern) == ACERR_SUCCESS ? 0 : -1);
}
int ndpi_add_string_to_automa(void *_automa, char *str) {
return(ndpi_add_string_value_to_automa(_automa, str, 1));
}
void ndpi_free_automa(void *_automa) { ac_automata_release((AC_AUTOMATA_t*)_automa); }
void ndpi_finalize_automa(void *_automa) { ac_automata_finalize((AC_AUTOMATA_t*)_automa); }
/* ****************************************************** */
int ndpi_match_string(void *_automa, char *string_to_match) {
AC_REP_t match = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED, NDPI_PROTOCOL_UNRATED };
AC_TEXT_t ac_input_text;
AC_AUTOMATA_t *automa = (AC_AUTOMATA_t*)_automa;
if((automa == NULL)
|| (string_to_match == NULL)
|| (string_to_match[0] == '\0'))
return(-2);
ac_input_text.astring = string_to_match, ac_input_text.length = strlen(string_to_match);
ac_automata_search(automa, &ac_input_text, &match);
ac_automata_reset(automa);
return(match.number > 0 ? 0 : -1);
}
/* ****************************************************** */
int ndpi_match_string_id(void *_automa, char *string_to_match, unsigned long *id) {
AC_TEXT_t ac_input_text;
AC_AUTOMATA_t *automa = (AC_AUTOMATA_t*)_automa;
AC_REP_t match = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED, NDPI_PROTOCOL_UNRATED };
*id = -1;
if((automa == NULL)
|| (string_to_match == NULL)
|| (string_to_match[0] == '\0'))
return(-2);
ac_input_text.astring = string_to_match, ac_input_text.length = strlen(string_to_match);
ac_automata_search(automa, &ac_input_text, &match);
ac_automata_reset(automa);
*id = match.number;
return(*id != NDPI_PROTOCOL_UNKNOWN ? 0 : -1);
}
/* *********************************************** */
#ifdef HAVE_HYPERSCAN
static int hyperscanCustomEventHandler(unsigned int id,
unsigned long long from,
unsigned long long to,
unsigned int flags, void *ctx) {
*((unsigned long *)ctx) = (unsigned long)id;
#ifdef DEBUG
printf("[HS] Found category %u\n", id);
#endif
return HS_SCAN_TERMINATED;
}
#endif
/* *********************************************** */
static int ndpi_match_custom_category(struct ndpi_detection_module_struct *ndpi_struct,
char *name, unsigned long *id) {
/* printf("[NDPI] %s(%s)\n", __FUNCTION__, name); */
if(!ndpi_struct->enable_category_substring_match) {
if(ndpi_struct->custom_categories.hostnames_hash == NULL)
return(-1);
else {
*id = (unsigned long)ht_get((hashtable_t*)ndpi_struct->custom_categories.hostnames_hash, name);
return(0);
}
} else {
#ifdef HAVE_HYPERSCAN
if(ndpi_struct->custom_categories.hostnames == NULL)
return(-1);
else {
hs_error_t rc;
*id = (unsigned long)-1;
rc = hs_scan(ndpi_struct->custom_categories.hostnames->database,
name, strlen(name), 0,
ndpi_struct->custom_categories.hostnames->scratch,
hyperscanCustomEventHandler, id);
if(rc == HS_SCAN_TERMINATED) {
#ifdef DEBUG
printf("[HS] Found category %lu for %s\n", *id, name);
#endif
return(0);
} else
return(-1);
}
#else
return(ndpi_match_string_id(ndpi_struct->custom_categories.hostnames.ac_automa, name, id));
#endif
}
}
/* *********************************************** */
static void free_ptree_data(void *data) { ; }
/* ****************************************************** */
void ndpi_exit_detection_module(struct ndpi_detection_module_struct *ndpi_struct) {
if(ndpi_struct != NULL) {
int i;
for(i=0; i<(int)ndpi_struct->ndpi_num_supported_protocols; i++) {
if(ndpi_struct->proto_defaults[i].protoName)
ndpi_free(ndpi_struct->proto_defaults[i].protoName);
}
/* NDPI_PROTOCOL_TINC */
if(ndpi_struct->tinc_cache)
cache_free((cache_t)(ndpi_struct->tinc_cache));
if(ndpi_struct->protocols_ptree)
ndpi_Destroy_Patricia((patricia_tree_t*)ndpi_struct->protocols_ptree,
free_ptree_data);
if(ndpi_struct->udpRoot != NULL)
ndpi_tdestroy(ndpi_struct->udpRoot, ndpi_free);
if(ndpi_struct->tcpRoot != NULL)
ndpi_tdestroy(ndpi_struct->tcpRoot, ndpi_free);
if(ndpi_struct->host_automa.ac_automa != NULL)
ac_automata_release((AC_AUTOMATA_t*)ndpi_struct->host_automa.ac_automa);
if(ndpi_struct->content_automa.ac_automa != NULL)
ac_automata_release((AC_AUTOMATA_t*)ndpi_struct->content_automa.ac_automa);
if(ndpi_struct->bigrams_automa.ac_automa != NULL)
ac_automata_release((AC_AUTOMATA_t*)ndpi_struct->bigrams_automa.ac_automa);
if(ndpi_struct->impossible_bigrams_automa.ac_automa != NULL)
ac_automata_release((AC_AUTOMATA_t*)ndpi_struct->impossible_bigrams_automa.ac_automa);
#ifdef HAVE_HYPERSCAN
destroy_hyperscan(ndpi_struct);
while(ndpi_struct->custom_categories.to_load != NULL) {
struct hs_list *next = ndpi_struct->custom_categories.to_load->next;
free(ndpi_struct->custom_categories.to_load->expression);
free(ndpi_struct->custom_categories.to_load);
ndpi_struct->custom_categories.to_load = next;
}
free_hyperscan_memory(ndpi_struct->custom_categories.hostnames);
#else
if(ndpi_struct->custom_categories.hostnames.ac_automa != NULL)
ac_automata_release((AC_AUTOMATA_t*)ndpi_struct->custom_categories.hostnames.ac_automa);
if(ndpi_struct->custom_categories.hostnames_shadow.ac_automa != NULL)
ac_automata_release((AC_AUTOMATA_t*)ndpi_struct->custom_categories.hostnames_shadow.ac_automa);
#endif
if(ndpi_struct->custom_categories.ipAddresses != NULL)
ndpi_Destroy_Patricia((patricia_tree_t*)ndpi_struct->custom_categories.ipAddresses, free_ptree_data);
if(ndpi_struct->custom_categories.ipAddresses_shadow != NULL)
ndpi_Destroy_Patricia((patricia_tree_t*)ndpi_struct->custom_categories.ipAddresses_shadow, free_ptree_data);
if(ndpi_struct->custom_categories.hostnames_hash)
ht_free((hashtable_t*)ndpi_struct->custom_categories.hostnames_hash);
ndpi_free(ndpi_struct);
}
}
/* ****************************************************** */
int ndpi_get_protocol_id_master_proto(struct ndpi_detection_module_struct *ndpi_struct,
u_int16_t protocol_id,
u_int16_t** tcp_master_proto,
u_int16_t** udp_master_proto) {
if(protocol_id >= (NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS)) {
*tcp_master_proto = ndpi_struct->proto_defaults[NDPI_PROTOCOL_UNKNOWN].master_tcp_protoId,
*udp_master_proto = ndpi_struct->proto_defaults[NDPI_PROTOCOL_UNKNOWN].master_udp_protoId;
return(-1);
}
*tcp_master_proto = ndpi_struct->proto_defaults[protocol_id].master_tcp_protoId,
*udp_master_proto = ndpi_struct->proto_defaults[protocol_id].master_udp_protoId;
return(0);
}
/* ****************************************************** */
static ndpi_default_ports_tree_node_t* ndpi_get_guessed_protocol_id(struct ndpi_detection_module_struct *ndpi_struct,
u_int8_t proto, u_int16_t sport, u_int16_t dport) {
const void *ret;
ndpi_default_ports_tree_node_t node;
if(sport && dport) {
int low = ndpi_min(sport, dport);
int high = ndpi_max(sport, dport);
node.default_port = low; /* Check server port first */
ret = ndpi_tfind(&node,
(proto == IPPROTO_TCP) ? (void*)&ndpi_struct->tcpRoot : (void*)&ndpi_struct->udpRoot,
ndpi_default_ports_tree_node_t_cmp);
if(ret == NULL) {
node.default_port = high;
ret = ndpi_tfind(&node,
(proto == IPPROTO_TCP) ? (void*)&ndpi_struct->tcpRoot : (void*)&ndpi_struct->udpRoot,
ndpi_default_ports_tree_node_t_cmp);
}
if(ret) return(*(ndpi_default_ports_tree_node_t**)ret);
}
return(NULL);
}
/* ****************************************************** */
u_int16_t ndpi_guess_protocol_id(struct ndpi_detection_module_struct *ndpi_struct,
u_int8_t proto, u_int16_t sport, u_int16_t dport,
u_int8_t *user_defined_proto) {
*user_defined_proto = 0; /* Default */
if(sport && dport) {
ndpi_default_ports_tree_node_t *found = ndpi_get_guessed_protocol_id(ndpi_struct, proto, sport, dport);
if(found != NULL) {
*user_defined_proto = found->customUserProto;
return(found->proto->protoId);
}
} else {
/* No TCP/UDP */
switch(proto) {
case NDPI_IPSEC_PROTOCOL_ESP:
case NDPI_IPSEC_PROTOCOL_AH:
return(NDPI_PROTOCOL_IP_IPSEC);
break;
case NDPI_GRE_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_GRE);
break;
case NDPI_ICMP_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_ICMP);
break;
case NDPI_IGMP_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_IGMP);
break;
case NDPI_EGP_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_EGP);
break;
case NDPI_SCTP_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_SCTP);
break;
case NDPI_OSPF_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_OSPF);
break;
case NDPI_IPIP_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_IP_IN_IP);
break;
case NDPI_ICMPV6_PROTOCOL_TYPE:
return(NDPI_PROTOCOL_IP_ICMPV6);
break;
case 112:
return(NDPI_PROTOCOL_IP_VRRP);
break;
}
}
return(NDPI_PROTOCOL_UNKNOWN);
}
/* ******************************************************************** */
u_int ndpi_get_num_supported_protocols(struct ndpi_detection_module_struct *ndpi_mod) {
return(ndpi_mod->ndpi_num_supported_protocols);
}
/* ******************************************************************** */
#ifdef WIN32
char * strsep(char **sp, char *sep)
{
char *p, *s;
if(sp == NULL || *sp == NULL || **sp == '\0') return(NULL);
s = *sp;
p = s + strcspn(s, sep);
if(*p != '\0') *p++ = '\0';
*sp = p;
return(s);
}
#endif
/* ******************************************************************** */
int ndpi_handle_rule(struct ndpi_detection_module_struct *ndpi_mod,
char* rule, u_int8_t do_add) {
char *at, *proto, *elem;
ndpi_proto_defaults_t *def;
int subprotocol_id, i;
at = strrchr(rule, '@');
if(at == NULL) {
NDPI_LOG_ERR(ndpi_mod, "Invalid rule '%s'\n", rule);
return(-1);
} else
at[0] = 0, proto = &at[1];
for(i=0; proto[i] != '\0'; i++) {
switch(proto[i]) {
case '/':
case '&':
case '^':
case ':':
case ';':
case '\'':
case '"':
case ' ':
proto[i] = '_';
break;
}
}
for(i=0, def = NULL; i<(int)ndpi_mod->ndpi_num_supported_protocols; i++) {
if(ndpi_mod->proto_defaults[i].protoName && strcasecmp(ndpi_mod->proto_defaults[i].protoName, proto) == 0) {
def = &ndpi_mod->proto_defaults[i];
subprotocol_id = i;
break;
}
}
if(def == NULL) {
if(!do_add) {
/* We need to remove a rule */
NDPI_LOG_ERR(ndpi_mod, "Unable to find protocol '%s': skipping rule '%s'\n", proto, rule);
return(-3);
} else {
ndpi_port_range ports_a[MAX_DEFAULT_PORTS], ports_b[MAX_DEFAULT_PORTS];
u_int16_t no_master[2] = { NDPI_PROTOCOL_NO_MASTER_PROTO, NDPI_PROTOCOL_NO_MASTER_PROTO };
if(ndpi_mod->ndpi_num_custom_protocols >= (NDPI_MAX_NUM_CUSTOM_PROTOCOLS-1)) {
NDPI_LOG_ERR(ndpi_mod, "Too many protocols defined (%u): skipping protocol %s\n",
ndpi_mod->ndpi_num_custom_protocols, proto);
return(-2);
}
ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_ACCEPTABLE,
ndpi_mod->ndpi_num_supported_protocols,
no_master,
no_master,
ndpi_strdup(proto),
NDPI_PROTOCOL_CATEGORY_UNSPECIFIED, /* TODO add protocol category support in rules */
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
ndpi_build_default_ports(ports_b, 0, 0, 0, 0, 0) /* UDP */);
def = &ndpi_mod->proto_defaults[ndpi_mod->ndpi_num_supported_protocols];
subprotocol_id = ndpi_mod->ndpi_num_supported_protocols;
ndpi_mod->ndpi_num_supported_protocols++, ndpi_mod->ndpi_num_custom_protocols++;
}
}
while((elem = strsep(&rule, ",")) != NULL) {
char *attr = elem, *value = NULL;
ndpi_port_range range;
int is_tcp = 0, is_udp = 0, is_ip = 0;
if(strncmp(attr, "tcp:", 4) == 0)
is_tcp = 1, value = &attr[4];
else if(strncmp(attr, "udp:", 4) == 0)
is_udp = 1, value = &attr[4];
else if(strncmp(attr, "ip:", 3) == 0)
is_ip = 1, value = &attr[3];
else if(strncmp(attr, "host:", 5) == 0) {
/* host:"<value>",host:"<value>",.....@<subproto> */
value = &attr[5];
if(value[0] == '"') value++; /* remove leading " */
if(value[strlen(value)-1] == '"') value[strlen(value)-1] = '\0'; /* remove trailing " */
}
if(is_tcp || is_udp) {
if(sscanf(value, "%u-%u", (u_int32_t *)&range.port_low, (u_int32_t *)&range.port_high) != 2)
range.port_low = range.port_high = atoi(&elem[4]);
if(do_add)
addDefaultPort(ndpi_mod, &range, def, 1 /* Custom user proto */, is_tcp ? &ndpi_mod->tcpRoot : &ndpi_mod->udpRoot, __FUNCTION__,__LINE__);
else
removeDefaultPort(&range, def, is_tcp ? &ndpi_mod->tcpRoot : &ndpi_mod->udpRoot);
} else if(is_ip) {
/* NDPI_PROTOCOL_TOR */
ndpi_add_host_ip_subprotocol(ndpi_mod, value, subprotocol_id);
} else {
if(do_add)
ndpi_add_host_url_subprotocol(ndpi_mod, value, subprotocol_id,
NDPI_PROTOCOL_CATEGORY_UNSPECIFIED,
NDPI_PROTOCOL_ACCEPTABLE);
else
ndpi_remove_host_url_subprotocol(ndpi_mod, value, subprotocol_id);
}
}
return(0);
}
/* ******************************************************************** */
/*
Format:
<tcp|udp>:<port>,<tcp|udp>:<port>,.....@<proto>
Example:
tcp:80,tcp:3128@HTTP
udp:139@NETBIOS
*/
int ndpi_load_protocols_file(struct ndpi_detection_module_struct *ndpi_mod, char* path) {
FILE *fd = fopen(path, "r");
int i;
if(fd == NULL) {
NDPI_LOG_ERR(ndpi_mod, "Unable to open file %s [%s]", path, strerror(errno));
return(-1);
}
while(fd) {
char buffer[512], *line;
if(!(line = fgets(buffer, sizeof(buffer), fd)))
break;
if(((i = strlen(line)) <= 1) || (line[0] == '#'))
continue;
else
line[i-1] = '\0';
ndpi_handle_rule(ndpi_mod, line, 1);
}
fclose(fd);
return(0);
}
/* ******************************************************************** */
/* ntop */
void ndpi_set_bitmask_protocol_detection(char * label,
struct ndpi_detection_module_struct *ndpi_struct,
const NDPI_PROTOCOL_BITMASK * detection_bitmask,
const u_int32_t idx,
u_int16_t ndpi_protocol_id,
void (*func) (struct ndpi_detection_module_struct *, struct ndpi_flow_struct *flow),
const NDPI_SELECTION_BITMASK_PROTOCOL_SIZE ndpi_selection_bitmask,
u_int8_t b_save_bitmask_unknow,
u_int8_t b_add_detection_bitmask) {
/*
Compare specify protocol bitmask with main detection bitmask
*/
if(NDPI_COMPARE_PROTOCOL_TO_BITMASK(*detection_bitmask, ndpi_protocol_id) != 0) {
#ifdef DEBUG
NDPI_LOG_DBG2(ndpi_struct
"[NDPI] ndpi_set_bitmask_protocol_detection: %s : [callback_buffer] idx= %u, [proto_defaults] protocol_id=%u\n",
label, idx, ndpi_protocol_id);
#endif
if(ndpi_struct->proto_defaults[ndpi_protocol_id].protoIdx != 0) {
NDPI_LOG_DBG2(ndpi_struct,
"[NDPI] Internal error: protocol %s/%u has been already registered\n", label, ndpi_protocol_id);
#ifdef DEBUG
} else {
NDPI_LOG_DBG2(ndpi_struct,
"[NDPI] Adding %s with protocol id %d\n", label, ndpi_protocol_id);
#endif
}
/*
Set function and index protocol within proto_default structure for port protocol detection
and callback_buffer function for DPI protocol detection
*/
ndpi_struct->proto_defaults[ndpi_protocol_id].protoIdx = idx;
ndpi_struct->proto_defaults[ndpi_protocol_id].func = ndpi_struct->callback_buffer[idx].func = func;
/*
Set ndpi_selection_bitmask for protocol
*/
ndpi_struct->callback_buffer[idx].ndpi_selection_bitmask = ndpi_selection_bitmask;
/*
Reset protocol detection bitmask via NDPI_PROTOCOL_UNKNOWN and than add specify protocol bitmast to callback
buffer.
*/
if(b_save_bitmask_unknow) NDPI_SAVE_AS_BITMASK(ndpi_struct->callback_buffer[idx].detection_bitmask, NDPI_PROTOCOL_UNKNOWN);
if(b_add_detection_bitmask) NDPI_ADD_PROTOCOL_TO_BITMASK(ndpi_struct->callback_buffer[idx].detection_bitmask, ndpi_protocol_id);
NDPI_SAVE_AS_BITMASK(ndpi_struct->callback_buffer[idx].excluded_protocol_bitmask, ndpi_protocol_id);
}
}
/* ******************************************************************** */
void ndpi_set_protocol_detection_bitmask2(struct ndpi_detection_module_struct *ndpi_struct,
const NDPI_PROTOCOL_BITMASK * dbm)
{
NDPI_PROTOCOL_BITMASK detection_bitmask_local;
NDPI_PROTOCOL_BITMASK *detection_bitmask = &detection_bitmask_local;
u_int32_t a = 0;
NDPI_BITMASK_SET(detection_bitmask_local, *dbm);
NDPI_BITMASK_SET(ndpi_struct->detection_bitmask, *dbm);
/* set this here to zero to be interrupt safe */
ndpi_struct->callback_buffer_size = 0;
/* HTTP */
init_http_dissector(ndpi_struct, &a, detection_bitmask);
/* STARCRAFT */
init_starcraft_dissector(ndpi_struct, &a, detection_bitmask);
/* SSL */
init_ssl_dissector(ndpi_struct, &a, detection_bitmask);
/* STUN */
init_stun_dissector(ndpi_struct, &a, detection_bitmask);
/* RTP */
init_rtp_dissector(ndpi_struct, &a, detection_bitmask);
/* RTSP */
init_rtsp_dissector(ndpi_struct, &a, detection_bitmask);
/* RDP */
init_rdp_dissector(ndpi_struct, &a, detection_bitmask);
/* SIP */
init_sip_dissector(ndpi_struct, &a, detection_bitmask);
/* HEP */
init_hep_dissector(ndpi_struct, &a, detection_bitmask);
/* Teredo */
init_teredo_dissector(ndpi_struct, &a, detection_bitmask);
/* EDONKEY */
init_edonkey_dissector(ndpi_struct, &a, detection_bitmask);
/* FASTTRACK */
init_fasttrack_dissector(ndpi_struct, &a, detection_bitmask);
/* GNUTELLA */
init_gnutella_dissector(ndpi_struct, &a, detection_bitmask);
/* DIRECTCONNECT */
init_directconnect_dissector(ndpi_struct, &a, detection_bitmask);
/* MSN */
init_msn_dissector(ndpi_struct, &a, detection_bitmask);
/* YAHOO */
init_yahoo_dissector(ndpi_struct, &a, detection_bitmask);
/* OSCAR */
init_oscar_dissector(ndpi_struct, &a, detection_bitmask);
/* APPLEJUICE */
init_applejuice_dissector(ndpi_struct, &a, detection_bitmask);
/* SOULSEEK */
init_soulseek_dissector(ndpi_struct, &a, detection_bitmask);
/* SOCKS */
init_socks_dissector(ndpi_struct, &a, detection_bitmask);
/* IRC */
init_irc_dissector(ndpi_struct, &a, detection_bitmask);
/* JABBER */
init_jabber_dissector(ndpi_struct, &a, detection_bitmask);
/* MAIL_POP */
init_mail_pop_dissector(ndpi_struct, &a, detection_bitmask);
/* MAIL_IMAP */
init_mail_imap_dissector(ndpi_struct, &a, detection_bitmask);
/* MAIL_SMTP */
init_mail_smtp_dissector(ndpi_struct, &a, detection_bitmask);
/* USENET */
init_usenet_dissector(ndpi_struct, &a, detection_bitmask);
/* DNS */
init_dns_dissector(ndpi_struct, &a, detection_bitmask);
/* FILETOPIA */
init_fbzero_dissector(ndpi_struct, &a, detection_bitmask);
/* VMWARE */
init_vmware_dissector(ndpi_struct, &a, detection_bitmask);
/* NON_TCP_UDP */
init_non_tcp_udp_dissector(ndpi_struct, &a, detection_bitmask);
/* TVANTS */
init_tvants_dissector(ndpi_struct, &a, detection_bitmask);
/* SOPCAST */
init_sopcast_dissector(ndpi_struct, &a, detection_bitmask);
/* TVUPLAYER */
init_tvuplayer_dissector(ndpi_struct, &a, detection_bitmask);
/* PPSTREAM */
init_ppstream_dissector(ndpi_struct, &a, detection_bitmask);
/* PPLIVE */
init_pplive_dissector(ndpi_struct, &a, detection_bitmask);
/* IAX */
init_iax_dissector(ndpi_struct, &a, detection_bitmask);
/* MGPC */
init_mgpc_dissector(ndpi_struct, &a, detection_bitmask);
/* ZATTOO */
init_zattoo_dissector(ndpi_struct, &a, detection_bitmask);
/* QQ */
init_qq_dissector(ndpi_struct, &a, detection_bitmask);
/* SSH */
init_ssh_dissector(ndpi_struct, &a, detection_bitmask);
/* AYIYA */
init_ayiya_dissector(ndpi_struct, &a, detection_bitmask);
/* THUNDER */
init_thunder_dissector(ndpi_struct, &a, detection_bitmask);
/* VNC */
init_vnc_dissector(ndpi_struct, &a, detection_bitmask);
/* TEAMVIEWER */
init_teamviewer_dissector(ndpi_struct, &a, detection_bitmask);
/* DHCP */
init_dhcp_dissector(ndpi_struct, &a, detection_bitmask);
/* STEAM */
init_steam_dissector(ndpi_struct, &a, detection_bitmask);
/* HALFLIFE2 */
init_halflife2_dissector(ndpi_struct, &a, detection_bitmask);
/* XBOX */
init_xbox_dissector(ndpi_struct, &a, detection_bitmask);
/* HTTP_APPLICATION_ACTIVESYNC */
init_http_activesync_dissector(ndpi_struct, &a, detection_bitmask);
/* SMB */
init_smb_dissector(ndpi_struct, &a, detection_bitmask);
/* TELNET */
init_telnet_dissector(ndpi_struct, &a, detection_bitmask);
/* NTP */
init_ntp_dissector(ndpi_struct, &a, detection_bitmask);
/* NFS */
init_nfs_dissector(ndpi_struct, &a, detection_bitmask);
/* SSDP */
init_ssdp_dissector(ndpi_struct, &a, detection_bitmask);
/* WORLD_OF_WARCRAFT */
init_world_of_warcraft_dissector(ndpi_struct, &a, detection_bitmask);
/* POSTGRES */
init_postgres_dissector(ndpi_struct, &a, detection_bitmask);
/* MYSQL */
init_mysql_dissector(ndpi_struct, &a, detection_bitmask);
/* BGP */
init_bgp_dissector(ndpi_struct, &a, detection_bitmask);
/* BATTLEFIELD */
init_battlefield_dissector(ndpi_struct, &a, detection_bitmask);
/* PCANYWHERE */
init_pcanywhere_dissector(ndpi_struct, &a, detection_bitmask);
/* SNMP */
init_snmp_dissector(ndpi_struct, &a, detection_bitmask);
/* KONTIKI */
init_kontiki_dissector(ndpi_struct, &a, detection_bitmask);
/* ICECAST */
init_icecast_dissector(ndpi_struct, &a, detection_bitmask);
/* SHOUTCAST */
init_shoutcast_dissector(ndpi_struct, &a, detection_bitmask);
/* KERBEROS */
init_kerberos_dissector(ndpi_struct, &a, detection_bitmask);
/* OPENFT */
init_openft_dissector(ndpi_struct, &a, detection_bitmask);
/* SYSLOG */
init_syslog_dissector(ndpi_struct, &a, detection_bitmask);
/* DIRECT_DOWNLOAD_LINK */
init_directdownloadlink_dissector(ndpi_struct, &a, detection_bitmask);
/* NETBIOS */
init_netbios_dissector(ndpi_struct, &a, detection_bitmask);
/* MDNS */
init_mdns_dissector(ndpi_struct, &a, detection_bitmask);
/* IPP */
init_ipp_dissector(ndpi_struct, &a, detection_bitmask);
/* LDAP */
init_ldap_dissector(ndpi_struct, &a, detection_bitmask);
/* WARCRAFT3 */
init_warcraft3_dissector(ndpi_struct, &a, detection_bitmask);
/* XDMCP */
init_xdmcp_dissector(ndpi_struct, &a, detection_bitmask);
/* TFTP */
init_tftp_dissector(ndpi_struct, &a, detection_bitmask);
/* MSSQL_TDS */
init_mssql_tds_dissector(ndpi_struct, &a, detection_bitmask);
/* PPTP */
init_pptp_dissector(ndpi_struct, &a, detection_bitmask);
/* STEALTHNET */
init_stealthnet_dissector(ndpi_struct, &a, detection_bitmask);
/* DHCPV6 */
init_dhcpv6_dissector(ndpi_struct, &a, detection_bitmask);
/* AFP */
init_afp_dissector(ndpi_struct, &a, detection_bitmask);
/* check_mk */
init_checkmk_dissector(ndpi_struct, &a, detection_bitmask);
/* AIMINI */
init_aimini_dissector(ndpi_struct, &a, detection_bitmask);
/* FLORENSIA */
init_florensia_dissector(ndpi_struct, &a, detection_bitmask);
/* MAPLESTORY */
init_maplestory_dissector(ndpi_struct, &a, detection_bitmask);
/* DOFUS */
init_dofus_dissector(ndpi_struct, &a, detection_bitmask);
/* WORLD_OF_KUNG_FU */
init_world_of_kung_fu_dissector(ndpi_struct, &a, detection_bitmask);
/* FIESTA */
init_fiesta_dissector(ndpi_struct, &a, detection_bitmask);
/* CROSSIFIRE */
init_crossfire_dissector(ndpi_struct, &a, detection_bitmask);
/* GUILDWARS */
init_guildwars_dissector(ndpi_struct, &a, detection_bitmask);
/* ARMAGETRON */
init_armagetron_dissector(ndpi_struct, &a, detection_bitmask);
/* DROPBOX */
init_dropbox_dissector(ndpi_struct, &a, detection_bitmask);
/* SPOTIFY */
init_spotify_dissector(ndpi_struct, &a, detection_bitmask);
/* RADIUS */
init_radius_dissector(ndpi_struct, &a, detection_bitmask);
/* CITRIX */
init_citrix_dissector(ndpi_struct, &a, detection_bitmask);
/* LOTUS_NOTES */
init_lotus_notes_dissector(ndpi_struct, &a, detection_bitmask);
/* GTP */
init_gtp_dissector(ndpi_struct, &a, detection_bitmask);
/* DCERPC */
init_dcerpc_dissector(ndpi_struct, &a, detection_bitmask);
/* NETFLOW */
init_netflow_dissector(ndpi_struct, &a, detection_bitmask);
/* SFLOW */
init_sflow_dissector(ndpi_struct, &a, detection_bitmask);
/* H323 */
init_h323_dissector(ndpi_struct, &a, detection_bitmask);
/* OPENVPN */
init_openvpn_dissector(ndpi_struct, &a, detection_bitmask);
/* NOE */
init_noe_dissector(ndpi_struct, &a, detection_bitmask);
/* CISCOVPN */
init_ciscovpn_dissector(ndpi_struct, &a, detection_bitmask);
/* TEAMSPEAK */
init_teamspeak_dissector(ndpi_struct, &a, detection_bitmask);
/* VIBER */
init_viber_dissector(ndpi_struct, &a, detection_bitmask);
/* TOR */
init_tor_dissector(ndpi_struct, &a, detection_bitmask);
/* SKINNY */
init_skinny_dissector(ndpi_struct, &a, detection_bitmask);
/* RTCP */
init_rtcp_dissector(ndpi_struct, &a, detection_bitmask);
/* RSYNC */
init_rsync_dissector(ndpi_struct, &a, detection_bitmask);
/* WHOIS_DAS */
init_whois_das_dissector(ndpi_struct, &a, detection_bitmask);
/* ORACLE */
init_oracle_dissector(ndpi_struct, &a, detection_bitmask);
/* CORBA */
init_corba_dissector(ndpi_struct, &a, detection_bitmask);
/* RTMP */
init_rtmp_dissector(ndpi_struct, &a, detection_bitmask);
/* FTP_CONTROL */
init_ftp_control_dissector(ndpi_struct, &a, detection_bitmask);
/* FTP_DATA */
init_ftp_data_dissector(ndpi_struct, &a, detection_bitmask);
/* PANDO */
init_pando_dissector(ndpi_struct, &a, detection_bitmask);
/* MEGACO */
init_megaco_dissector(ndpi_struct, &a, detection_bitmask);
/* REDIS */
init_redis_dissector(ndpi_struct, &a, detection_bitmask);
/* VHUA */
init_vhua_dissector(ndpi_struct, &a, detection_bitmask);
/* ZMQ */
init_zmq_dissector(ndpi_struct, &a, detection_bitmask);
/* TELEGRAM */
init_telegram_dissector(ndpi_struct, &a, detection_bitmask);
/* QUIC */
init_quic_dissector(ndpi_struct, &a, detection_bitmask);
/* DIAMETER */
init_diameter_dissector(ndpi_struct, &a, detection_bitmask);
/* APPLE_PUSH */
init_apple_push_dissector(ndpi_struct, &a, detection_bitmask);
/* EAQ */
init_eaq_dissector(ndpi_struct, &a, detection_bitmask);
/* KAKAOTALK_VOICE */
init_kakaotalk_voice_dissector(ndpi_struct, &a, detection_bitmask);
/* MPEGTS */
init_mpegts_dissector(ndpi_struct, &a, detection_bitmask);
/* UBNTAC2 */
init_ubntac2_dissector(ndpi_struct, &a, detection_bitmask);
/* COAP */
init_coap_dissector(ndpi_struct, &a, detection_bitmask);
/* MQTT */
init_mqtt_dissector(ndpi_struct, &a, detection_bitmask);
/* SOME/IP */
init_someip_dissector(ndpi_struct, &a, detection_bitmask);
/* RX */
init_rx_dissector(ndpi_struct, &a, detection_bitmask);
/* GIT */
init_git_dissector(ndpi_struct, &a, detection_bitmask);
/* HANGOUT */
init_hangout_dissector(ndpi_struct, &a, detection_bitmask);
/* DRDA */
init_drda_dissector(ndpi_struct, &a, detection_bitmask);
/* BJNP */
init_bjnp_dissector(ndpi_struct, &a, detection_bitmask);
/* SMPP */
init_smpp_dissector(ndpi_struct, &a, detection_bitmask);
/* TINC */
init_tinc_dissector(ndpi_struct, &a, detection_bitmask);
/* FIX */
init_fix_dissector(ndpi_struct, &a, detection_bitmask);
/* NINTENDO */
init_nintendo_dissector(ndpi_struct, &a, detection_bitmask);
/*** Put false-positive sensitive protocols at the end ***/
/* SKYPE */
init_skype_dissector(ndpi_struct, &a, detection_bitmask);
/* BITTORRENT */
init_bittorrent_dissector(ndpi_struct, &a, detection_bitmask);
/* WHATSAPP */
init_whatsapp_dissector(ndpi_struct, &a, detection_bitmask);
/* AMQP */
init_amqp_dissector(ndpi_struct, &a, detection_bitmask);
/* CSGO */
init_csgo_dissector(ndpi_struct, &a, detection_bitmask);
/* LISP */
init_lisp_dissector(ndpi_struct, &a, detection_bitmask);
/* AJP */
init_ajp_dissector(ndpi_struct, &a, detection_bitmask);
/* Memcached */
init_memcached_dissector(ndpi_struct, &a, detection_bitmask);
/* ----------------------------------------------------------------- */
ndpi_struct->callback_buffer_size = a;
NDPI_LOG_DBG2(ndpi_struct,
"callback_buffer_size is %u\n", ndpi_struct->callback_buffer_size);
/* now build the specific buffer for tcp, udp and non_tcp_udp */
ndpi_struct->callback_buffer_size_tcp_payload = 0;
ndpi_struct->callback_buffer_size_tcp_no_payload = 0;
for(a = 0; a < ndpi_struct->callback_buffer_size; a++) {
if((ndpi_struct->callback_buffer[a].ndpi_selection_bitmask
& (NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP |
NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP_OR_UDP |
NDPI_SELECTION_BITMASK_PROTOCOL_COMPLETE_TRAFFIC)) != 0) {
if(_ndpi_debug_callbacks) NDPI_LOG_DBG2(ndpi_struct,
"callback_buffer_tcp_payload, adding buffer %u as entry %u\n", a,
ndpi_struct->callback_buffer_size_tcp_payload);
memcpy(&ndpi_struct->callback_buffer_tcp_payload[ndpi_struct->callback_buffer_size_tcp_payload],
&ndpi_struct->callback_buffer[a], sizeof(struct ndpi_call_function_struct));
ndpi_struct->callback_buffer_size_tcp_payload++;
if((ndpi_struct->
callback_buffer[a].ndpi_selection_bitmask & NDPI_SELECTION_BITMASK_PROTOCOL_HAS_PAYLOAD) == 0) {
if(_ndpi_debug_callbacks) NDPI_LOG_DBG2(ndpi_struct,
"\tcallback_buffer_tcp_no_payload, additional adding buffer %u to no_payload process\n", a);
memcpy(&ndpi_struct->callback_buffer_tcp_no_payload
[ndpi_struct->callback_buffer_size_tcp_no_payload], &ndpi_struct->callback_buffer[a],
sizeof(struct ndpi_call_function_struct));
ndpi_struct->callback_buffer_size_tcp_no_payload++;
}
}
}
ndpi_struct->callback_buffer_size_udp = 0;
for(a = 0; a < ndpi_struct->callback_buffer_size; a++) {
if((ndpi_struct->callback_buffer[a].ndpi_selection_bitmask & (NDPI_SELECTION_BITMASK_PROTOCOL_INT_UDP |
NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP_OR_UDP |
NDPI_SELECTION_BITMASK_PROTOCOL_COMPLETE_TRAFFIC))
!= 0) {
if(_ndpi_debug_callbacks) NDPI_LOG_DBG2(ndpi_struct,
"callback_buffer_size_udp: adding buffer : %u as entry %u\n", a, ndpi_struct->callback_buffer_size_udp);
memcpy(&ndpi_struct->callback_buffer_udp[ndpi_struct->callback_buffer_size_udp],
&ndpi_struct->callback_buffer[a], sizeof(struct ndpi_call_function_struct));
ndpi_struct->callback_buffer_size_udp++;
}
}
ndpi_struct->callback_buffer_size_non_tcp_udp = 0;
for(a = 0; a < ndpi_struct->callback_buffer_size; a++) {
if((ndpi_struct->callback_buffer[a].ndpi_selection_bitmask & (NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP |
NDPI_SELECTION_BITMASK_PROTOCOL_INT_UDP |
NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP_OR_UDP))
== 0
|| (ndpi_struct->
callback_buffer[a].ndpi_selection_bitmask & NDPI_SELECTION_BITMASK_PROTOCOL_COMPLETE_TRAFFIC) != 0) {
if(_ndpi_debug_callbacks) NDPI_LOG_DBG2(ndpi_struct,
"callback_buffer_non_tcp_udp: adding buffer : %u as entry %u\n", a, ndpi_struct->callback_buffer_size_non_tcp_udp);
memcpy(&ndpi_struct->callback_buffer_non_tcp_udp[ndpi_struct->callback_buffer_size_non_tcp_udp],
&ndpi_struct->callback_buffer[a], sizeof(struct ndpi_call_function_struct));
ndpi_struct->callback_buffer_size_non_tcp_udp++;
}
}
}
#ifdef NDPI_DETECTION_SUPPORT_IPV6
/* handle extension headers in IPv6 packets
* arguments:
* l4ptr: pointer to the byte following the initial IPv6 header
* l4len: the length of the IPv6 packet excluding the IPv6 header
* nxt_hdr: next header value from the IPv6 header
* result:
* l4ptr: pointer to the start of the actual packet payload
* l4len: length of the actual payload
* nxt_hdr: protocol of the actual payload
* returns 0 upon success and 1 upon failure
*/
static int ndpi_handle_ipv6_extension_headers(struct ndpi_detection_module_struct *ndpi_struct, const u_int8_t ** l4ptr, u_int16_t * l4len, u_int8_t * nxt_hdr)
{
while ((*nxt_hdr == 0 || *nxt_hdr == 43 || *nxt_hdr == 44 || *nxt_hdr == 60 || *nxt_hdr == 135 || *nxt_hdr == 59)) {
u_int16_t ehdr_len;
// no next header
if(*nxt_hdr == 59) {
return 1;
}
// fragment extension header has fixed size of 8 bytes and the first byte is the next header type
if(*nxt_hdr == 44) {
if(*l4len < 8) {
return 1;
}
*nxt_hdr = (*l4ptr)[0];
*l4len -= 8;
(*l4ptr) += 8;
continue;
}
// the other extension headers have one byte for the next header type
// and one byte for the extension header length in 8 byte steps minus the first 8 bytes
ehdr_len = (*l4ptr)[1];
ehdr_len *= 8;
ehdr_len += 8;
if(*l4len < ehdr_len) {
return 1;
}
*nxt_hdr = (*l4ptr)[0];
*l4len -= ehdr_len;
(*l4ptr) += ehdr_len;
}
return 0;
}
#endif /* NDPI_DETECTION_SUPPORT_IPV6 */
static u_int8_t ndpi_iph_is_valid_and_not_fragmented(const struct ndpi_iphdr *iph, const u_int16_t ipsize)
{
//#ifdef REQUIRE_FULL_PACKETS
if(ipsize < iph->ihl * 4 ||
ipsize < ntohs(iph->tot_len) || ntohs(iph->tot_len) < iph->ihl * 4 || (iph->frag_off & htons(0x1FFF)) != 0) {
return 0;
}
//#endif
return 1;
}
static u_int8_t ndpi_detection_get_l4_internal(struct ndpi_detection_module_struct *ndpi_struct,
const u_int8_t * l3, u_int16_t l3_len,
const u_int8_t ** l4_return, u_int16_t * l4_len_return,
u_int8_t * l4_protocol_return, u_int32_t flags)
{
const struct ndpi_iphdr *iph = NULL;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
const struct ndpi_ipv6hdr *iph_v6 = NULL;
#endif
u_int16_t l4len = 0;
const u_int8_t *l4ptr = NULL;
u_int8_t l4protocol = 0;
if(l3 == NULL || l3_len < sizeof(struct ndpi_iphdr))
return 1;
iph = (const struct ndpi_iphdr *) l3;
if(iph->version == IPVERSION && iph->ihl >= 5) {
NDPI_LOG_DBG2(ndpi_struct, "ipv4 header\n");
}
#ifdef NDPI_DETECTION_SUPPORT_IPV6
else if(iph->version == 6 && l3_len >= sizeof(struct ndpi_ipv6hdr)) {
NDPI_LOG_DBG2(ndpi_struct, "ipv6 header\n");
iph_v6 = (const struct ndpi_ipv6hdr *) iph;
iph = NULL;
}
#endif
else {
return 1;
}
if((flags & NDPI_DETECTION_ONLY_IPV6) && iph != NULL) {
NDPI_LOG_DBG2(ndpi_struct, "ipv4 header found but excluded by flag\n");
return 1;
}
#ifdef NDPI_DETECTION_SUPPORT_IPV6
else if((flags & NDPI_DETECTION_ONLY_IPV4) && iph_v6 != NULL) {
NDPI_LOG_DBG2(ndpi_struct, "ipv6 header found but excluded by flag\n");
return 1;
}
#endif
if(iph != NULL && ndpi_iph_is_valid_and_not_fragmented(iph, l3_len)) {
u_int16_t len = ntohs(iph->tot_len);
u_int16_t hlen = (iph->ihl * 4);
l4ptr = (((const u_int8_t *) iph) + iph->ihl * 4);
if(len == 0) len = l3_len;
l4len = (len > hlen) ? (len - hlen) : 0;
l4protocol = iph->protocol;
}
#ifdef NDPI_DETECTION_SUPPORT_IPV6
else if(iph_v6 != NULL && (l3_len - sizeof(struct ndpi_ipv6hdr)) >= ntohs(iph_v6->ip6_hdr.ip6_un1_plen)) {
l4ptr = (((const u_int8_t *) iph_v6) + sizeof(struct ndpi_ipv6hdr));
l4len = ntohs(iph_v6->ip6_hdr.ip6_un1_plen);
l4protocol = iph_v6->ip6_hdr.ip6_un1_nxt;
// we need to handle IPv6 extension headers if present
if(ndpi_handle_ipv6_extension_headers(ndpi_struct, &l4ptr, &l4len, &l4protocol) != 0) {
return 1;
}
}
#endif
else {
return 1;
}
if(l4_return != NULL) {
*l4_return = l4ptr;
}
if(l4_len_return != NULL) {
*l4_len_return = l4len;
}
if(l4_protocol_return != NULL) {
*l4_protocol_return = l4protocol;
}
return 0;
}
void ndpi_apply_flow_protocol_to_packet(struct ndpi_flow_struct *flow,
struct ndpi_packet_struct *packet)
{
memcpy(&packet->detected_protocol_stack, &flow->detected_protocol_stack, sizeof(packet->detected_protocol_stack));
memcpy(&packet->protocol_stack_info, &flow->protocol_stack_info, sizeof(packet->protocol_stack_info));
}
static int ndpi_init_packet_header(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
unsigned short packetlen)
{
const struct ndpi_iphdr *decaps_iph = NULL;
u_int16_t l3len;
u_int16_t l4len;
const u_int8_t *l4ptr;
u_int8_t l4protocol;
u_int8_t l4_result;
if(flow) {
/* reset payload_packet_len, will be set if ipv4 tcp or udp */
flow->packet.payload_packet_len = 0;
flow->packet.l4_packet_len = 0;
flow->packet.l3_packet_len = packetlen;
flow->packet.tcp = NULL;
flow->packet.udp = NULL;
flow->packet.generic_l4_ptr = NULL;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
flow->packet.iphv6 = NULL;
#endif /* NDPI_DETECTION_SUPPORT_IPV6 */
}
if(flow) {
ndpi_apply_flow_protocol_to_packet(flow, &flow->packet);
} else {
ndpi_int_reset_packet_protocol(&flow->packet);
}
l3len = flow->packet.l3_packet_len;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
if(flow->packet.iph != NULL) {
#endif /* NDPI_DETECTION_SUPPORT_IPV6 */
decaps_iph =flow->packet.iph;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
}
#endif /* NDPI_DETECTION_SUPPORT_IPV6 */
if(decaps_iph && decaps_iph->version == IPVERSION && decaps_iph->ihl >= 5) {
NDPI_LOG_DBG2(ndpi_struct, "ipv4 header\n");
}
#ifdef NDPI_DETECTION_SUPPORT_IPV6
else if(decaps_iph && decaps_iph->version == 6 && l3len >= sizeof(struct ndpi_ipv6hdr) &&
(ndpi_struct->ip_version_limit & NDPI_DETECTION_ONLY_IPV4) == 0) {
NDPI_LOG_DBG2(ndpi_struct, "ipv6 header\n");
flow->packet.iphv6 = (struct ndpi_ipv6hdr *)flow->packet.iph;
flow->packet.iph = NULL;
}
#endif
else {
flow->packet.iph = NULL;
return 1;
}
/* needed:
* - unfragmented packets
* - ip header <= packet len
* - ip total length >= packet len
*/
l4ptr = NULL;
l4len = 0;
l4protocol = 0;
l4_result =
ndpi_detection_get_l4_internal(ndpi_struct, (const u_int8_t *) decaps_iph, l3len, &l4ptr, &l4len, &l4protocol, 0);
if(l4_result != 0) {
return 1;
}
flow->packet.l4_protocol = l4protocol;
flow->packet.l4_packet_len = l4len;
/* tcp / udp detection */
if(l4protocol == IPPROTO_TCP && flow->packet.l4_packet_len >= 20 /* min size of tcp */ ) {
/* tcp */
flow->packet.tcp = (struct ndpi_tcphdr *) l4ptr;
if(flow->packet.l4_packet_len >=flow->packet.tcp->doff * 4) {
flow->packet.payload_packet_len =
flow->packet.l4_packet_len -flow->packet.tcp->doff * 4;
flow->packet.actual_payload_len =flow->packet.payload_packet_len;
flow->packet.payload = ((u_int8_t *)flow->packet.tcp) + (flow->packet.tcp->doff * 4);
/* check for new tcp syn packets, here
* idea: reset detection state if a connection is unknown
*/
if(flow && flow->packet.tcp->syn != 0
&& flow->packet.tcp->ack == 0
&& flow->init_finished != 0
&& flow->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN) {
if(flow->http.url)
ndpi_free(flow->http.url);
if(flow->http.content_type)
ndpi_free(flow->http.content_type);
memset(flow, 0, sizeof(*(flow)));
NDPI_LOG_DBG(ndpi_struct,
"tcp syn packet for unknown protocol, reset detection state\n");
}
} else {
/* tcp header not complete */
flow->packet.tcp = NULL;
}
} else if(l4protocol == IPPROTO_UDP && flow->packet.l4_packet_len >= 8 /* size of udp */ ) {
flow->packet.udp = (struct ndpi_udphdr *) l4ptr;
flow->packet.payload_packet_len =flow->packet.l4_packet_len - 8;
flow->packet.payload = ((u_int8_t *)flow->packet.udp) + 8;
} else {
flow->packet.generic_l4_ptr = l4ptr;
}
return 0;
}
void ndpi_connection_tracking(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
/* const for gcc code optimization and cleaner code */
struct ndpi_packet_struct *packet = &flow->packet;
const struct ndpi_iphdr *iph = packet->iph;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
const struct ndpi_ipv6hdr *iphv6 = packet->iphv6;
#endif
const struct ndpi_tcphdr *tcph = packet->tcp;
const struct ndpi_udphdr *udph = flow->packet.udp;
u_int8_t proxy_enabled = 0;
packet->tcp_retransmission = 0, packet->packet_direction = 0;
if(ndpi_struct->direction_detect_disable) {
packet->packet_direction = flow->packet_direction;
} else {
if(iph != NULL && iph->saddr < iph->daddr)
packet->packet_direction = 1;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
if(iphv6 != NULL && NDPI_COMPARE_IPV6_ADDRESS_STRUCTS(&iphv6->ip6_src,
&iphv6->ip6_dst) != 0)
packet->packet_direction = 1;
#endif
}
packet->packet_lines_parsed_complete = 0;
if(flow == NULL)
return;
if(flow->init_finished == 0) {
flow->init_finished = 1;
flow->setup_packet_direction = packet->packet_direction;
}
if(tcph != NULL) {
/* reset retried bytes here before setting it */
packet->num_retried_bytes = 0;
if(!ndpi_struct->direction_detect_disable)
packet->packet_direction = (tcph->source < tcph->dest) ? 1 : 0;
if(tcph->syn != 0 && tcph->ack == 0 && flow->l4.tcp.seen_syn == 0 && flow->l4.tcp.seen_syn_ack == 0
&& flow->l4.tcp.seen_ack == 0) {
flow->l4.tcp.seen_syn = 1;
}
if(tcph->syn != 0 && tcph->ack != 0 && flow->l4.tcp.seen_syn == 1 && flow->l4.tcp.seen_syn_ack == 0
&& flow->l4.tcp.seen_ack == 0) {
flow->l4.tcp.seen_syn_ack = 1;
}
if(tcph->syn == 0 && tcph->ack == 1 && flow->l4.tcp.seen_syn == 1 && flow->l4.tcp.seen_syn_ack == 1
&& flow->l4.tcp.seen_ack == 0) {
flow->l4.tcp.seen_ack = 1;
}
if((flow->next_tcp_seq_nr[0] == 0 && flow->next_tcp_seq_nr[1] == 0)
|| (proxy_enabled && (flow->next_tcp_seq_nr[0] == 0 || flow->next_tcp_seq_nr[1] == 0))) {
/* initialize tcp sequence counters */
/* the ack flag needs to be set to get valid sequence numbers from the other
* direction. Usually it will catch the second packet syn+ack but it works
* also for asymmetric traffic where it will use the first data packet
*
* if the syn flag is set add one to the sequence number,
* otherwise use the payload length.
*/
if(tcph->ack != 0) {
flow->next_tcp_seq_nr[flow->packet.packet_direction] =
ntohl(tcph->seq) + (tcph->syn ? 1 : packet->payload_packet_len);
if(!proxy_enabled) {
flow->next_tcp_seq_nr[1 -flow->packet.packet_direction] = ntohl(tcph->ack_seq);
}
}
} else if(packet->payload_packet_len > 0) {
/* check tcp sequence counters */
if(((u_int32_t)(ntohl(tcph->seq) - flow->next_tcp_seq_nr[packet->packet_direction])) >
ndpi_struct->tcp_max_retransmission_window_size) {
packet->tcp_retransmission = 1;
/* CHECK IF PARTIAL RETRY IS HAPPENING */
if((flow->next_tcp_seq_nr[packet->packet_direction] - ntohl(tcph->seq) < packet->payload_packet_len)) {
/* num_retried_bytes actual_payload_len hold info about the partial retry
analyzer which require this info can make use of this info
Other analyzer can use packet->payload_packet_len */
packet->num_retried_bytes = (u_int16_t)(flow->next_tcp_seq_nr[packet->packet_direction] - ntohl(tcph->seq));
packet->actual_payload_len = packet->payload_packet_len - packet->num_retried_bytes;
flow->next_tcp_seq_nr[packet->packet_direction] = ntohl(tcph->seq) + packet->payload_packet_len;
}
}
/* normal path
actual_payload_len is initialized to payload_packet_len during tcp header parsing itself.
It will be changed only in case of retransmission */
else {
packet->num_retried_bytes = 0;
flow->next_tcp_seq_nr[packet->packet_direction] = ntohl(tcph->seq) + packet->payload_packet_len;
}
}
if(tcph->rst) {
flow->next_tcp_seq_nr[0] = 0;
flow->next_tcp_seq_nr[1] = 0;
}
} else if(udph != NULL) {
if(!ndpi_struct->direction_detect_disable)
packet->packet_direction = (udph->source < udph->dest) ? 1 : 0;
}
if(flow->packet_counter < MAX_PACKET_COUNTER && packet->payload_packet_len) {
flow->packet_counter++;
}
if(flow->packet_direction_counter[packet->packet_direction] < MAX_PACKET_COUNTER && packet->payload_packet_len) {
flow->packet_direction_counter[packet->packet_direction]++;
}
if(flow->byte_counter[packet->packet_direction] + packet->payload_packet_len >
flow->byte_counter[packet->packet_direction]) {
flow->byte_counter[packet->packet_direction] += packet->payload_packet_len;
}
}
void check_ndpi_other_flow_func(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
NDPI_SELECTION_BITMASK_PROTOCOL_SIZE *ndpi_selection_packet) {
void *func = NULL;
u_int32_t a;
u_int16_t proto_index = ndpi_struct->proto_defaults[flow->guessed_protocol_id].protoIdx;
int16_t proto_id = ndpi_struct->proto_defaults[flow->guessed_protocol_id].protoId;
NDPI_PROTOCOL_BITMASK detection_bitmask;
NDPI_SAVE_AS_BITMASK(detection_bitmask, flow->packet.detected_protocol_stack[0]);
if((proto_id != NDPI_PROTOCOL_UNKNOWN)
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer[proto_index].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer[proto_index].detection_bitmask,
detection_bitmask) != 0
&& (ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask
& *ndpi_selection_packet) == ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask) {
if((flow->guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
&& (ndpi_struct->proto_defaults[flow->guessed_protocol_id].func != NULL))
ndpi_struct->proto_defaults[flow->guessed_protocol_id].func(ndpi_struct, flow),
func = ndpi_struct->proto_defaults[flow->guessed_protocol_id].func;
}
for(a = 0; a < ndpi_struct->callback_buffer_size_non_tcp_udp; a++) {
if((func != ndpi_struct->callback_buffer_non_tcp_udp[a].func)
&& (ndpi_struct->callback_buffer_non_tcp_udp[a].ndpi_selection_bitmask & *ndpi_selection_packet) ==
ndpi_struct->callback_buffer_non_tcp_udp[a].ndpi_selection_bitmask
&& (flow == NULL
||
NDPI_BITMASK_COMPARE
(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer_non_tcp_udp[a].excluded_protocol_bitmask) == 0)
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer_non_tcp_udp[a].detection_bitmask,
detection_bitmask) != 0) {
if(ndpi_struct->callback_buffer_non_tcp_udp[a].func != NULL)
ndpi_struct->callback_buffer_non_tcp_udp[a].func(ndpi_struct, flow);
if(flow->detected_protocol_stack[0] != NDPI_PROTOCOL_UNKNOWN)
break; /* Stop after detecting the first protocol */
}
}
}
void check_ndpi_udp_flow_func(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
NDPI_SELECTION_BITMASK_PROTOCOL_SIZE *ndpi_selection_packet) {
void *func = NULL;
u_int32_t a;
u_int16_t proto_index = ndpi_struct->proto_defaults[flow->guessed_protocol_id].protoIdx;
int16_t proto_id = ndpi_struct->proto_defaults[flow->guessed_protocol_id].protoId;
NDPI_PROTOCOL_BITMASK detection_bitmask;
NDPI_SAVE_AS_BITMASK(detection_bitmask, flow->packet.detected_protocol_stack[0]);
if((proto_id != NDPI_PROTOCOL_UNKNOWN)
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer[proto_index].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer[proto_index].detection_bitmask,
detection_bitmask) != 0
&& (ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask
& *ndpi_selection_packet) == ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask) {
if((flow->guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
&& (ndpi_struct->proto_defaults[flow->guessed_protocol_id].func != NULL))
ndpi_struct->proto_defaults[flow->guessed_protocol_id].func(ndpi_struct, flow),
func = ndpi_struct->proto_defaults[flow->guessed_protocol_id].func;
}
for(a = 0; a < ndpi_struct->callback_buffer_size_udp; a++) {
if((func != ndpi_struct->callback_buffer_udp[a].func)
&& (ndpi_struct->callback_buffer_udp[a].ndpi_selection_bitmask & *ndpi_selection_packet) ==
ndpi_struct->callback_buffer_udp[a].ndpi_selection_bitmask
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer_udp[a].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer_udp[a].detection_bitmask,
detection_bitmask) != 0) {
ndpi_struct->callback_buffer_udp[a].func(ndpi_struct, flow);
// NDPI_LOG_DBG(ndpi_struct, "[UDP,CALL] dissector of protocol as callback_buffer idx = %d\n",a);
if(flow->detected_protocol_stack[0] != NDPI_PROTOCOL_UNKNOWN)
break; /* Stop after detecting the first protocol */
} else
if(_ndpi_debug_callbacks) NDPI_LOG_DBG2(ndpi_struct,
"[UDP,SKIP] dissector of protocol as callback_buffer idx = %d\n",a);
}
}
void check_ndpi_tcp_flow_func(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
NDPI_SELECTION_BITMASK_PROTOCOL_SIZE *ndpi_selection_packet) {
void *func = NULL;
u_int32_t a;
u_int16_t proto_index = ndpi_struct->proto_defaults[flow->guessed_protocol_id].protoIdx;
int16_t proto_id = ndpi_struct->proto_defaults[flow->guessed_protocol_id].protoId;
NDPI_PROTOCOL_BITMASK detection_bitmask;
NDPI_SAVE_AS_BITMASK(detection_bitmask, flow->packet.detected_protocol_stack[0]);
if(flow->packet.payload_packet_len != 0) {
if((proto_id != NDPI_PROTOCOL_UNKNOWN)
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer[proto_index].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer[proto_index].detection_bitmask,
detection_bitmask) != 0
&& (ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask & *ndpi_selection_packet) == ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask) {
if((flow->guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
&& (ndpi_struct->proto_defaults[flow->guessed_protocol_id].func != NULL))
ndpi_struct->proto_defaults[flow->guessed_protocol_id].func(ndpi_struct, flow),
func = ndpi_struct->proto_defaults[flow->guessed_protocol_id].func;
}
if(flow->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN) {
for(a = 0; a < ndpi_struct->callback_buffer_size_tcp_payload; a++) {
if((func != ndpi_struct->callback_buffer_tcp_payload[a].func)
&& (ndpi_struct->callback_buffer_tcp_payload[a].ndpi_selection_bitmask & *ndpi_selection_packet) == ndpi_struct->callback_buffer_tcp_payload[a].ndpi_selection_bitmask
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer_tcp_payload[a].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer_tcp_payload[a].detection_bitmask,
detection_bitmask) != 0) {
ndpi_struct->callback_buffer_tcp_payload[a].func(ndpi_struct, flow);
if(flow->detected_protocol_stack[0] != NDPI_PROTOCOL_UNKNOWN)
break; /* Stop after detecting the first protocol */
}
}
}
} else {
/* no payload */
if((proto_id != NDPI_PROTOCOL_UNKNOWN)
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->callback_buffer[proto_index].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer[proto_index].detection_bitmask,
detection_bitmask) != 0
&& (ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask
& *ndpi_selection_packet) == ndpi_struct->callback_buffer[proto_index].ndpi_selection_bitmask) {
if((flow->guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
&& (ndpi_struct->proto_defaults[flow->guessed_protocol_id].func != NULL)
&& ((ndpi_struct->callback_buffer[flow->guessed_protocol_id].ndpi_selection_bitmask & NDPI_SELECTION_BITMASK_PROTOCOL_HAS_PAYLOAD) == 0))
ndpi_struct->proto_defaults[flow->guessed_protocol_id].func(ndpi_struct, flow),
func = ndpi_struct->proto_defaults[flow->guessed_protocol_id].func;
}
for(a = 0; a < ndpi_struct->callback_buffer_size_tcp_no_payload; a++) {
if((func != ndpi_struct->callback_buffer_tcp_payload[a].func)
&& (ndpi_struct->callback_buffer_tcp_no_payload[a].ndpi_selection_bitmask & *ndpi_selection_packet) ==
ndpi_struct->callback_buffer_tcp_no_payload[a].ndpi_selection_bitmask
&& NDPI_BITMASK_COMPARE(flow->excluded_protocol_bitmask,
ndpi_struct->
callback_buffer_tcp_no_payload[a].excluded_protocol_bitmask) == 0
&& NDPI_BITMASK_COMPARE(ndpi_struct->callback_buffer_tcp_no_payload[a].detection_bitmask,
detection_bitmask) != 0) {
ndpi_struct->callback_buffer_tcp_no_payload[a].func(ndpi_struct, flow);
if(flow->detected_protocol_stack[0] != NDPI_PROTOCOL_UNKNOWN)
break; /* Stop after detecting the first protocol */
}
}
}
}
/* ********************************************************************************* */
void ndpi_check_flow_func(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
NDPI_SELECTION_BITMASK_PROTOCOL_SIZE *ndpi_selection_packet) {
if(flow->packet.tcp != NULL)
check_ndpi_tcp_flow_func(ndpi_struct, flow, ndpi_selection_packet);
else if(flow->packet.udp != NULL)
check_ndpi_udp_flow_func(ndpi_struct, flow, ndpi_selection_packet);
else
check_ndpi_other_flow_func(ndpi_struct, flow, ndpi_selection_packet);
}
/* ********************************************************************************* */
static u_int16_t ndpi_guess_host_protocol_id(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
u_int16_t ret = NDPI_PROTOCOL_UNKNOWN;
if(flow->packet.iph) {
/* guess host protocol */
ret = ndpi_network_ptree_match(ndpi_struct, (struct in_addr *)&flow->packet.iph->saddr);
if(ret == NDPI_PROTOCOL_UNKNOWN)
ret = ndpi_network_ptree_match(ndpi_struct, (struct in_addr *)&flow->packet.iph->daddr);
}
return(ret);
}
/* ********************************************************************************* */
ndpi_protocol ndpi_detection_giveup(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
ndpi_protocol ret = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED };
if(flow == NULL) return(ret);
/* TODO: add the remaining stage_XXXX protocols */
if(flow->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN) {
u_int16_t guessed_protocol_id, guessed_host_protocol_id;
if(flow->guessed_protocol_id == NDPI_PROTOCOL_STUN)
goto check_stun_export;
else if(flow->protos.stun_ssl.ssl.client_certificate[0] != '\0') {
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_SSL, NDPI_PROTOCOL_UNKNOWN);
} else {
if((flow->guessed_protocol_id == NDPI_PROTOCOL_UNKNOWN)
&& (flow->packet.l4_protocol == IPPROTO_TCP)
&& (flow->l4.tcp.ssl_stage > 1))
flow->guessed_protocol_id = NDPI_PROTOCOL_SSL_NO_CERT;
guessed_protocol_id = flow->guessed_protocol_id,
guessed_host_protocol_id = flow->guessed_host_protocol_id;
if((guessed_host_protocol_id != NDPI_PROTOCOL_UNKNOWN)
&& (NDPI_ISSET(&flow->excluded_protocol_bitmask, guessed_host_protocol_id)))
guessed_host_protocol_id = NDPI_PROTOCOL_UNKNOWN;
/* Ignore guessed protocol if they have been discarded */
if((guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
&& (guessed_host_protocol_id == NDPI_PROTOCOL_UNKNOWN)
&& (NDPI_ISSET(&flow->excluded_protocol_bitmask, guessed_protocol_id)))
guessed_protocol_id = NDPI_PROTOCOL_UNKNOWN;
if((guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
|| (guessed_host_protocol_id != NDPI_PROTOCOL_UNKNOWN)) {
ndpi_int_change_protocol(ndpi_struct, flow,
guessed_host_protocol_id,
guessed_protocol_id);
}
}
} else {
flow->detected_protocol_stack[1] = flow->guessed_protocol_id,
flow->detected_protocol_stack[0] = flow->guessed_host_protocol_id;
if(flow->detected_protocol_stack[1] == flow->detected_protocol_stack[0])
flow->detected_protocol_stack[1] = flow->guessed_host_protocol_id;
}
if((flow->detected_protocol_stack[0] == NDPI_PROTOCOL_UNKNOWN)
&& (flow->guessed_protocol_id == NDPI_PROTOCOL_STUN)) {
check_stun_export:
if(flow->protos.stun_ssl.stun.num_processed_pkts > 0) {
if(flow->protos.stun_ssl.stun.num_processed_pkts >= 8) {
u_int16_t proto = (flow->protos.stun_ssl.stun.num_binding_requests < 4) ? NDPI_PROTOCOL_SKYPE_CALL_IN : NDPI_PROTOCOL_SKYPE_CALL_OUT;
ndpi_set_detected_protocol(ndpi_struct, flow, proto, NDPI_PROTOCOL_SKYPE);
} else
ndpi_set_detected_protocol(ndpi_struct, flow, NDPI_PROTOCOL_STUN, flow->guessed_host_protocol_id);
}
}
ret.master_protocol = flow->detected_protocol_stack[1], ret.app_protocol = flow->detected_protocol_stack[0];
return(ret);
}
/* ********************************************************************************* */
void ndpi_process_extra_packet(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
const unsigned char *packet,
const unsigned short packetlen,
const u_int64_t current_tick_l,
struct ndpi_id_struct *src,
struct ndpi_id_struct *dst) {
if(flow == NULL)
return;
if(flow->server_id == NULL) flow->server_id = dst; /* Default */
/* need at least 20 bytes for ip header */
if(packetlen < 20) {
return;
}
flow->packet.tick_timestamp_l = current_tick_l;
flow->packet.tick_timestamp = (u_int32_t)(current_tick_l/ndpi_struct->ticks_per_second);
/* parse packet */
flow->packet.iph = (struct ndpi_iphdr *)packet;
/* we are interested in ipv4 packet */
/* set up the packet headers for the extra packet function to use if it wants */
if(ndpi_init_packet_header(ndpi_struct, flow, packetlen) != 0)
return;
/* detect traffic for tcp or udp only */
flow->src = src, flow->dst = dst;
ndpi_connection_tracking(ndpi_struct, flow);
/* call the extra packet function (which may add more data/info to flow) */
if(flow->extra_packets_func) {
if((flow->extra_packets_func(ndpi_struct, flow)) == 0)
flow->check_extra_packets = 0;
}
flow->num_extra_packets_checked++;
}
/* ********************************************************************************* */
void ndpi_load_ip_category(struct ndpi_detection_module_struct *ndpi_struct,
char *ip_address_and_mask, ndpi_protocol_category_t category) {
patricia_node_t *node;
struct in_addr pin;
int bits = 32;
char *ptr = strrchr(ip_address_and_mask, '/');
if(ptr) {
ptr[0] = '\0';
ptr++;
if(atoi(ptr)>=0 && atoi(ptr)<=32)
bits = atoi(ptr);
}
inet_pton(AF_INET, ip_address_and_mask, &pin);
if((node = add_to_ptree(ndpi_struct->custom_categories.ipAddresses_shadow,
AF_INET, &pin, bits)) != NULL)
node->value.user_value = (int)category;
}
/* ********************************************************************************* */
/*
*
* IMPORTANT
*
* The *name pointer MUST be kept allocated until the automa is finalized and it
* cannot be recycled across multiple ndpi_load_hostname_category() calls
*
*/
int ndpi_load_hostname_category(struct ndpi_detection_module_struct *ndpi_struct,
char *name, ndpi_protocol_category_t category) {
if(name == NULL)
return(-1);
if(!ndpi_struct->enable_category_substring_match) {
if(ndpi_struct->custom_categories.hostnames_hash == NULL)
ndpi_struct->custom_categories.hostnames_hash = (void*)ht_create(65536);
if(ndpi_struct->custom_categories.hostnames_hash)
ht_set((hashtable_t*)ndpi_struct->custom_categories.hostnames_hash, name, (u_int16_t)category);
return(0);
} else {
AC_PATTERN_t ac_pattern;
/* printf("===> Loading %s as %u\n", name, category); */
memset(&ac_pattern, 0, sizeof(ac_pattern));
#ifdef HAVE_HYPERSCAN
{
struct hs_list *h = (struct hs_list*)malloc(sizeof(struct hs_list));
if(h) {
char tmp[256];
int i, j;
for(i=0, j=0; (j<sizeof(tmp)) && (name[i] != '\0'); i++) {
if(name[i] == '.')
tmp[j++] = '\\';
tmp[j++] = name[i];
}
tmp[j] = '\0';
h->expression = ndpi_strdup(name), h->id = (unsigned int)category;
if(h->expression == NULL) {
free(h);
return(-2);
}
h->next = ndpi_struct->custom_categories.to_load;
ndpi_struct->custom_categories.to_load = h;
ndpi_struct->custom_categories.num_to_load++;
} else
return(-1);
}
#else
if(ndpi_struct->custom_categories.hostnames_shadow.ac_automa == NULL)
return(-1);
ac_pattern.astring = name, ac_pattern.length = strlen(ac_pattern.astring);
ac_pattern.rep.number = (int)category;
ac_automata_add(ndpi_struct->custom_categories.hostnames_shadow.ac_automa, &ac_pattern);
#endif
}
return(0);
}
/* ********************************************************************************* */
int ndpi_enable_loaded_categories(struct ndpi_detection_module_struct *ndpi_str) {
if(!ndpi_str->enable_category_substring_match) {
; /* Nothing to do */
} else {
#ifdef HAVE_HYPERSCAN
if(ndpi_str->custom_categories.num_to_load > 0) {
const char **expressions;
unsigned int *ids, i;
int rc;
struct hs_list *head = ndpi_str->custom_categories.to_load;
expressions = (const char**)calloc(sizeof(char*),
ndpi_str->custom_categories.num_to_load+1);
if(!expressions) return(-1);
ids = (unsigned int*)calloc(sizeof(unsigned int),
ndpi_str->custom_categories.num_to_load+1);
if(!ids) {
free(expressions);
return(-1);
}
for(i=0; head != NULL; i++) {
#ifdef DEBUG
printf("[HS] Loading category %u for %s\n", head->id, head->expression);
#endif
expressions[i] = head->expression, ids[i] = head->id;
head = head->next;
}
free_hyperscan_memory(ndpi_str->custom_categories.hostnames);
ndpi_str->custom_categories.hostnames = (struct hs*)malloc(sizeof(struct hs));
if(ndpi_str->custom_categories.hostnames == NULL) {
free(expressions), free(ids);
return(-1); /* Failed */
}
rc = hyperscan_load_patterns(ndpi_str->custom_categories.hostnames,
ndpi_str->custom_categories.num_to_load,
expressions, ids);
free(expressions), free(ids);
head = ndpi_str->custom_categories.to_load;
while(head != NULL) {
struct hs_list *next = head->next;
free(head->expression);
free(head);
head = next;
}
ndpi_str->custom_categories.to_load = NULL;
if(rc < 0) {
free(ndpi_str->custom_categories.hostnames);
ndpi_str->custom_categories.hostnames = NULL;
}
}
#else
/* Free */
ac_automata_release((AC_AUTOMATA_t*)ndpi_str->custom_categories.hostnames.ac_automa);
ndpi_Destroy_Patricia((patricia_tree_t*)ndpi_str->custom_categories.ipAddresses, free_ptree_data);
/* Finalize */
ac_automata_finalize((AC_AUTOMATA_t*)ndpi_str->custom_categories.hostnames_shadow.ac_automa);
/* Swap */
ndpi_str->custom_categories.hostnames.ac_automa = ndpi_str->custom_categories.hostnames_shadow.ac_automa;
ndpi_str->custom_categories.ipAddresses = ndpi_str->custom_categories.ipAddresses_shadow;
/* Realloc */
ndpi_str->custom_categories.hostnames_shadow.ac_automa = ac_automata_init(ac_match_handler);
ndpi_str->custom_categories.ipAddresses_shadow = ndpi_New_Patricia(32 /* IPv4 */);
#endif
}
if(ndpi_str->custom_categories.ipAddresses != NULL)
ndpi_Destroy_Patricia((patricia_tree_t*)ndpi_str->custom_categories.ipAddresses,
free_ptree_data);
ndpi_str->custom_categories.ipAddresses = ndpi_str->custom_categories.ipAddresses_shadow;
ndpi_str->custom_categories.ipAddresses_shadow = ndpi_New_Patricia(32 /* IPv4 */);
ndpi_str->custom_categories.categories_loaded = 1;
return(0);
}
/* ********************************************************************************* */
void ndpi_fill_protocol_category(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
ndpi_protocol *ret) {
if(ndpi_struct->custom_categories.categories_loaded) {
if(flow->packet.iph) {
prefix_t prefix;
patricia_node_t *node;
/* Make sure all in network byte order otherwise compares wont work */
fill_prefix_v4(&prefix, (struct in_addr *)&flow->packet.iph->saddr,
32, ((patricia_tree_t*)ndpi_struct->protocols_ptree)->maxbits);
node = ndpi_patricia_search_best(ndpi_struct->custom_categories.ipAddresses, &prefix);
if(!node) {
fill_prefix_v4(&prefix, (struct in_addr *)&flow->packet.iph->daddr,
32, ((patricia_tree_t*)ndpi_struct->protocols_ptree)->maxbits);
node = ndpi_patricia_search_best(ndpi_struct->custom_categories.ipAddresses, &prefix);
}
if(node) {
ret->category = (ndpi_protocol_category_t)node->value.user_value;
return;
}
}
if(flow->host_server_name[0] != '\0') {
unsigned long id;
int rc = ndpi_match_custom_category(ndpi_struct, (char *)flow->host_server_name, &id);
if(rc == 0) {
ret->category = (ndpi_protocol_category_t)id;
return;
}
}
if(flow->protos.stun_ssl.ssl.server_certificate[0] != '\0') {
unsigned long id;
int rc = ndpi_match_custom_category(ndpi_struct, (char *)flow->protos.stun_ssl.ssl.server_certificate, &id);
if(rc == 0) {
ret->category = (ndpi_protocol_category_t)id;
return;
}
}
}
ret->category = ndpi_get_proto_category(ndpi_struct, *ret);
}
/* ********************************************************************************* */
ndpi_protocol ndpi_detection_process_packet(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
const unsigned char *packet,
const unsigned short packetlen,
const u_int64_t current_tick_l,
struct ndpi_id_struct *src,
struct ndpi_id_struct *dst) {
NDPI_SELECTION_BITMASK_PROTOCOL_SIZE ndpi_selection_packet;
u_int32_t a;
ndpi_protocol ret = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED };
if(ndpi_struct->ndpi_log_level >= NDPI_LOG_TRACE)
NDPI_LOG(flow ? flow->detected_protocol_stack[0]:NDPI_PROTOCOL_UNKNOWN,
ndpi_struct, NDPI_LOG_TRACE, "START packet processing\n");
if(flow == NULL)
return(ret);
if(flow->server_id == NULL) flow->server_id = dst; /* Default */
if(flow->detected_protocol_stack[0] != NDPI_PROTOCOL_UNKNOWN)
goto ret_protocols;
/* need at least 20 bytes for ip header */
if(packetlen < 20) {
/* reset protocol which is normally done in init_packet_header */
ndpi_int_reset_packet_protocol(&flow->packet);
return(ret);
}
flow->packet.tick_timestamp_l = current_tick_l;
flow->packet.tick_timestamp = (u_int32_t)(current_tick_l/ndpi_struct->ticks_per_second);
/* parse packet */
flow->packet.iph = (struct ndpi_iphdr *)packet;
/* we are interested in ipv4 packet */
if(ndpi_init_packet_header(ndpi_struct, flow, packetlen) != 0)
return(ret);
/* detect traffic for tcp or udp only */
flow->src = src, flow->dst = dst;
ndpi_connection_tracking(ndpi_struct, flow);
/* build ndpi_selection packet bitmask */
ndpi_selection_packet = NDPI_SELECTION_BITMASK_PROTOCOL_COMPLETE_TRAFFIC;
if(flow->packet.iph != NULL)
ndpi_selection_packet |= NDPI_SELECTION_BITMASK_PROTOCOL_IP | NDPI_SELECTION_BITMASK_PROTOCOL_IPV4_OR_IPV6;
if(flow->packet.tcp != NULL)
ndpi_selection_packet |=
(NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP | NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP_OR_UDP);
if(flow->packet.udp != NULL)
ndpi_selection_packet |=
(NDPI_SELECTION_BITMASK_PROTOCOL_INT_UDP | NDPI_SELECTION_BITMASK_PROTOCOL_INT_TCP_OR_UDP);
if(flow->packet.payload_packet_len != 0)
ndpi_selection_packet |= NDPI_SELECTION_BITMASK_PROTOCOL_HAS_PAYLOAD;
if(flow->packet.tcp_retransmission == 0)
ndpi_selection_packet |= NDPI_SELECTION_BITMASK_PROTOCOL_NO_TCP_RETRANSMISSION;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
if(flow->packet.iphv6 != NULL)
ndpi_selection_packet |= NDPI_SELECTION_BITMASK_PROTOCOL_IPV6 | NDPI_SELECTION_BITMASK_PROTOCOL_IPV4_OR_IPV6;
#endif /* NDPI_DETECTION_SUPPORT_IPV6 */
if((!flow->protocol_id_already_guessed)
&& (
#ifdef NDPI_DETECTION_SUPPORT_IPV6
flow->packet.iphv6 ||
#endif
flow->packet.iph)) {
u_int16_t sport, dport;
u_int8_t protocol;
u_int8_t user_defined_proto;
flow->protocol_id_already_guessed = 1;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
if(flow->packet.iphv6 != NULL) {
protocol = flow->packet.iphv6->ip6_hdr.ip6_un1_nxt;
} else
#endif
{
protocol = flow->packet.iph->protocol;
}
if(flow->packet.udp) sport = ntohs(flow->packet.udp->source), dport = ntohs(flow->packet.udp->dest);
else if(flow->packet.tcp) sport = ntohs(flow->packet.tcp->source), dport = ntohs(flow->packet.tcp->dest);
else sport = dport = 0;
/* guess protocol */
flow->guessed_protocol_id = (int16_t) ndpi_guess_protocol_id(ndpi_struct, protocol, sport, dport, &user_defined_proto);
flow->guessed_host_protocol_id = ndpi_guess_host_protocol_id(ndpi_struct, flow);
if(flow->guessed_protocol_id >= (NDPI_MAX_SUPPORTED_PROTOCOLS-1)) {
/* This is a custom protocol and it has priority over everything else */
ret.master_protocol = NDPI_PROTOCOL_UNKNOWN, ret.app_protocol = flow->guessed_host_protocol_id;
ndpi_fill_protocol_category(ndpi_struct, flow, &ret);
return(ret);
}
if(user_defined_proto && flow->guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN) {
if(flow->packet.iph) {
if(flow->guessed_host_protocol_id != NDPI_PROTOCOL_UNKNOWN) {
/* ret.master_protocol = flow->guessed_protocol_id , ret.app_protocol = flow->guessed_host_protocol_id; /\* ****** *\/ */
ret = ndpi_detection_giveup(ndpi_struct, flow);
}
ndpi_fill_protocol_category(ndpi_struct, flow, &ret);
return(ret);
}
} else {
/* guess host protocol */
if(flow->packet.iph) {
flow->guessed_host_protocol_id = ndpi_network_ptree_match(ndpi_struct, (struct in_addr *)&flow->packet.iph->saddr);
if(flow->guessed_host_protocol_id == NDPI_PROTOCOL_UNKNOWN)
flow->guessed_host_protocol_id = ndpi_network_ptree_match(ndpi_struct, (struct in_addr *)&flow->packet.iph->daddr);
}
}
}
if(flow->guessed_host_protocol_id >= (NDPI_MAX_SUPPORTED_PROTOCOLS-1)) {
/* This is a custom protocol and it has priority over everything else */
ret.master_protocol = NDPI_PROTOCOL_UNKNOWN, ret.app_protocol = flow->guessed_host_protocol_id;
ndpi_check_flow_func(ndpi_struct, flow, &ndpi_selection_packet);
ndpi_fill_protocol_category(ndpi_struct, flow, &ret);
return(ret);
}
ndpi_check_flow_func(ndpi_struct, flow, &ndpi_selection_packet);
a = flow->packet.detected_protocol_stack[0];
if(NDPI_COMPARE_PROTOCOL_TO_BITMASK(ndpi_struct->detection_bitmask, a) == 0)
a = NDPI_PROTOCOL_UNKNOWN;
if(a != NDPI_PROTOCOL_UNKNOWN) {
int i;
for(i=0; (i<sizeof(flow->host_server_name)) && (flow->host_server_name[i] != '\0'); i++)
flow->host_server_name[i] = tolower(flow->host_server_name[i]);
flow->host_server_name[i] ='\0';
}
ret_protocols:
if(flow->detected_protocol_stack[1] != NDPI_PROTOCOL_UNKNOWN) {
ret.master_protocol = flow->detected_protocol_stack[1], ret.app_protocol = flow->detected_protocol_stack[0];
if(ret.app_protocol == ret.master_protocol)
ret.master_protocol = NDPI_PROTOCOL_UNKNOWN;
} else
ret.app_protocol = flow->detected_protocol_stack[0];
ndpi_fill_protocol_category(ndpi_struct, flow, &ret);
return(ret);
}
/* ********************************************************************************* */
u_int32_t ndpi_bytestream_to_number(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read)
{
u_int32_t val;
val = 0;
// cancel if eof, ' ' or line end chars are reached
while (*str >= '0' && *str <= '9' && max_chars_to_read > 0) {
val *= 10;
val += *str - '0';
str++;
max_chars_to_read = max_chars_to_read - 1;
*bytes_read = *bytes_read + 1;
}
return (val);
}
/* ********************************************************************************* */
u_int32_t ndpi_bytestream_dec_or_hex_to_number(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read)
{
u_int32_t val;
val = 0;
if(max_chars_to_read <= 2 || str[0] != '0' || str[1] != 'x') {
return ndpi_bytestream_to_number(str, max_chars_to_read, bytes_read);
} else {
/*use base 16 system */
str += 2;
max_chars_to_read -= 2;
*bytes_read = *bytes_read + 2;
while (max_chars_to_read > 0) {
if(*str >= '0' && *str <= '9') {
val *= 16;
val += *str - '0';
} else if(*str >= 'a' && *str <= 'f') {
val *= 16;
val += *str + 10 - 'a';
} else if(*str >= 'A' && *str <= 'F') {
val *= 16;
val += *str + 10 - 'A';
} else {
break;
}
str++;
max_chars_to_read = max_chars_to_read - 1;
*bytes_read = *bytes_read + 1;
}
}
return (val);
}
/* ********************************************************************************* */
u_int64_t ndpi_bytestream_to_number64(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read)
{
u_int64_t val;
val = 0;
// cancel if eof, ' ' or line end chars are reached
while (max_chars_to_read > 0 && *str >= '0' && *str <= '9') {
val *= 10;
val += *str - '0';
str++;
max_chars_to_read = max_chars_to_read - 1;
*bytes_read = *bytes_read + 1;
}
return (val);
}
/* ********************************************************************************* */
u_int64_t ndpi_bytestream_dec_or_hex_to_number64(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read)
{
u_int64_t val;
val = 0;
if(max_chars_to_read <= 2 || str[0] != '0' || str[1] != 'x') {
return ndpi_bytestream_to_number64(str, max_chars_to_read, bytes_read);
} else {
/*use base 16 system */
str += 2;
max_chars_to_read -= 2;
*bytes_read = *bytes_read + 2;
while (max_chars_to_read > 0) {
if(*str >= '0' && *str <= '9') {
val *= 16;
val += *str - '0';
} else if(*str >= 'a' && *str <= 'f') {
val *= 16;
val += *str + 10 - 'a';
} else if(*str >= 'A' && *str <= 'F') {
val *= 16;
val += *str + 10 - 'A';
} else {
break;
}
str++;
max_chars_to_read = max_chars_to_read - 1;
*bytes_read = *bytes_read + 1;
}
}
return (val);
}
/* ********************************************************************************* */
u_int32_t ndpi_bytestream_to_ipv4(const u_int8_t * str, u_int16_t max_chars_to_read, u_int16_t * bytes_read)
{
u_int32_t val;
u_int16_t read = 0;
u_int16_t oldread;
u_int32_t c;
/* ip address must be X.X.X.X with each X between 0 and 255 */
oldread = read;
c = ndpi_bytestream_to_number(str, max_chars_to_read, &read);
if(c > 255 || oldread == read || max_chars_to_read == read || str[read] != '.')
return 0;
read++;
val = c << 24;
oldread = read;
c = ndpi_bytestream_to_number(&str[read], max_chars_to_read - read, &read);
if(c > 255 || oldread == read || max_chars_to_read == read || str[read] != '.')
return 0;
read++;
val = val + (c << 16);
oldread = read;
c = ndpi_bytestream_to_number(&str[read], max_chars_to_read - read, &read);
if(c > 255 || oldread == read || max_chars_to_read == read || str[read] != '.')
return 0;
read++;
val = val + (c << 8);
oldread = read;
c = ndpi_bytestream_to_number(&str[read], max_chars_to_read - read, &read);
if(c > 255 || oldread == read || max_chars_to_read == read)
return 0;
val = val + c;
*bytes_read = *bytes_read + read;
return htonl(val);
}
/* ********************************************************************************* */
/* internal function for every detection to parse one packet and to increase the info buffer */
void ndpi_parse_packet_line_info(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
u_int32_t a;
struct ndpi_packet_struct *packet = &flow->packet;
if(packet->packet_lines_parsed_complete != 0)
return;
packet->packet_lines_parsed_complete = 1;
packet->parsed_lines = 0;
packet->empty_line_position_set = 0;
packet->host_line.ptr = NULL;
packet->host_line.len = 0;
packet->referer_line.ptr = NULL;
packet->referer_line.len = 0;
packet->content_line.ptr = NULL;
packet->content_line.len = 0;
packet->accept_line.ptr = NULL;
packet->accept_line.len = 0;
packet->user_agent_line.ptr = NULL;
packet->user_agent_line.len = 0;
packet->http_url_name.ptr = NULL;
packet->http_url_name.len = 0;
packet->http_encoding.ptr = NULL;
packet->http_encoding.len = 0;
packet->http_transfer_encoding.ptr = NULL;
packet->http_transfer_encoding.len = 0;
packet->http_contentlen.ptr = NULL;
packet->http_contentlen.len = 0;
packet->http_cookie.ptr = NULL;
packet->http_cookie.len = 0;
packet->http_origin.len = 0;
packet->http_origin.ptr = NULL;
packet->http_x_session_type.ptr = NULL;
packet->http_x_session_type.len = 0;
packet->server_line.ptr = NULL;
packet->server_line.len = 0;
packet->http_method.ptr = NULL;
packet->http_method.len = 0;
packet->http_response.ptr = NULL;
packet->http_response.len = 0;
packet->http_num_headers=0;
if((packet->payload_packet_len < 3)
|| (packet->payload == NULL))
return;
packet->line[packet->parsed_lines].ptr = packet->payload;
packet->line[packet->parsed_lines].len = 0;
for(a = 0; a < packet->payload_packet_len; a++) {
if(get_u_int16_t(packet->payload, a) == ntohs(0x0d0a)) { /* If end of line char sequence CR+NL "\r\n", process line */
packet->line[packet->parsed_lines].len = (u_int16_t)(((unsigned long) &packet->payload[a]) - ((unsigned long) packet->line[packet->parsed_lines].ptr));
/* First line of a HTTP response parsing. Expected a "HTTP/1.? ???" */
if(packet->parsed_lines == 0 && packet->line[0].len >= NDPI_STATICSTRING_LEN("HTTP/1.X 200 ") &&
strncasecmp((const char *)packet->line[0].ptr, "HTTP/1.", NDPI_STATICSTRING_LEN("HTTP/1.")) == 0 &&
packet->line[0].ptr[NDPI_STATICSTRING_LEN("HTTP/1.X ")] > '0' && /* response code between 000 and 699 */
packet->line[0].ptr[NDPI_STATICSTRING_LEN("HTTP/1.X ")] < '6') {
packet->http_response.ptr = &packet->line[0].ptr[NDPI_STATICSTRING_LEN("HTTP/1.1 ")];
packet->http_response.len = packet->line[0].len - NDPI_STATICSTRING_LEN("HTTP/1.1 ");
packet->http_num_headers++;
/* Set server HTTP response code */
strncpy((char*)flow->http.response_status_code, (char*)packet->http_response.ptr, 3);
flow->http.response_status_code[4]='\0';
NDPI_LOG_DBG2(ndpi_struct,
"ndpi_parse_packet_line_info: HTTP response parsed: \"%.*s\"\n",
packet->http_response.len, packet->http_response.ptr);
}
/* "Server:" header line in HTTP response */
if(packet->line[packet->parsed_lines].len > NDPI_STATICSTRING_LEN("Server:") + 1
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Server:", NDPI_STATICSTRING_LEN("Server:")) == 0) {
// some stupid clients omit a space and place the servername directly after the colon
if(packet->line[packet->parsed_lines].ptr[NDPI_STATICSTRING_LEN("Server:")] == ' ') {
packet->server_line.ptr =
&packet->line[packet->parsed_lines].ptr[NDPI_STATICSTRING_LEN("Server:") + 1];
packet->server_line.len =
packet->line[packet->parsed_lines].len - (NDPI_STATICSTRING_LEN("Server:") + 1);
} else {
packet->server_line.ptr = &packet->line[packet->parsed_lines].ptr[NDPI_STATICSTRING_LEN("Server:")];
packet->server_line.len = packet->line[packet->parsed_lines].len - NDPI_STATICSTRING_LEN("Server:");
}
packet->http_num_headers++;
}
/* "Host:" header line in HTTP request */
if(packet->line[packet->parsed_lines].len > 6
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr,
"Host:", 5) == 0) {
// some stupid clients omit a space and place the hostname directly after the colon
if(packet->line[packet->parsed_lines].ptr[5] == ' ') {
packet->host_line.ptr = &packet->line[packet->parsed_lines].ptr[6];
packet->host_line.len = packet->line[packet->parsed_lines].len - 6;
} else {
packet->host_line.ptr = &packet->line[packet->parsed_lines].ptr[5];
packet->host_line.len = packet->line[packet->parsed_lines].len - 5;
}
packet->http_num_headers++;
}
/* "X-Forwarded-For:" header line in HTTP request. Commonly used for HTTP proxies. */
if(packet->line[packet->parsed_lines].len > 17
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "X-Forwarded-For:", 16) == 0) {
// some stupid clients omit a space and place the hostname directly after the colon
if(packet->line[packet->parsed_lines].ptr[16] == ' ') {
packet->forwarded_line.ptr = &packet->line[packet->parsed_lines].ptr[17];
packet->forwarded_line.len = packet->line[packet->parsed_lines].len - 17;
} else {
packet->forwarded_line.ptr = &packet->line[packet->parsed_lines].ptr[16];
packet->forwarded_line.len = packet->line[packet->parsed_lines].len - 16;
}
packet->http_num_headers++;
}
/* "Content-Type:" header line in HTTP. */
if(packet->line[packet->parsed_lines].len > 14
&& (strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Content-Type: ", 14) == 0
|| strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Content-type: ", 14) == 0)) {
packet->content_line.ptr = &packet->line[packet->parsed_lines].ptr[14];
packet->content_line.len = packet->line[packet->parsed_lines].len - 14;
packet->http_num_headers++;
}
/* "Content-Type:" header line in HTTP AGAIN. Probably a bogus response without space after ":" */
if(packet->line[packet->parsed_lines].len > 13
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Content-type:", 13) == 0) {
packet->content_line.ptr = &packet->line[packet->parsed_lines].ptr[13];
packet->content_line.len = packet->line[packet->parsed_lines].len - 13;
packet->http_num_headers++;
}
/* "Accept:" header line in HTTP request. */
if(packet->line[packet->parsed_lines].len > 8
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Accept: ", 8) == 0) {
packet->accept_line.ptr = &packet->line[packet->parsed_lines].ptr[8];
packet->accept_line.len = packet->line[packet->parsed_lines].len - 8;
packet->http_num_headers++;
}
/* "Referer:" header line in HTTP request. */
if(packet->line[packet->parsed_lines].len > 9
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Referer: ", 9) == 0) {
packet->referer_line.ptr = &packet->line[packet->parsed_lines].ptr[9];
packet->referer_line.len = packet->line[packet->parsed_lines].len - 9;
packet->http_num_headers++;
}
/* "User-Agent:" header line in HTTP request. */
if(packet->line[packet->parsed_lines].len > 12
&& (strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "User-Agent: ", 12) == 0
|| strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "User-agent: ", 12) == 0)) {
packet->user_agent_line.ptr = &packet->line[packet->parsed_lines].ptr[12];
packet->user_agent_line.len = packet->line[packet->parsed_lines].len - 12;
packet->http_num_headers++;
}
/* "Content-Encoding:" header line in HTTP response (and request?). */
if(packet->line[packet->parsed_lines].len > 18
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Content-Encoding: ", 18) == 0) {
packet->http_encoding.ptr = &packet->line[packet->parsed_lines].ptr[18];
packet->http_encoding.len = packet->line[packet->parsed_lines].len - 18;
packet->http_num_headers++;
}
/* "Transfer-Encoding:" header line in HTTP. */
if(packet->line[packet->parsed_lines].len > 19
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Transfer-Encoding: ", 19) == 0) {
packet->http_transfer_encoding.ptr = &packet->line[packet->parsed_lines].ptr[19];
packet->http_transfer_encoding.len = packet->line[packet->parsed_lines].len - 19;
packet->http_num_headers++;
}
/* "Content-Length:" header line in HTTP. */
if(packet->line[packet->parsed_lines].len > 16
&& ((strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Content-Length: ", 16) == 0)
|| (strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "content-length: ", 16) == 0))) {
packet->http_contentlen.ptr = &packet->line[packet->parsed_lines].ptr[16];
packet->http_contentlen.len = packet->line[packet->parsed_lines].len - 16;
packet->http_num_headers++;
}
/* "Cookie:" header line in HTTP. */
if(packet->line[packet->parsed_lines].len > 8
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Cookie: ", 8) == 0) {
packet->http_cookie.ptr = &packet->line[packet->parsed_lines].ptr[8];
packet->http_cookie.len = packet->line[packet->parsed_lines].len - 8;
packet->http_num_headers++;
}
/* "Origin:" header line in HTTP. */
if(packet->line[packet->parsed_lines].len > 8
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Origin: ", 8) == 0) {
packet->http_origin.ptr = &packet->line[packet->parsed_lines].ptr[8];
packet->http_origin.len = packet->line[packet->parsed_lines].len - 8;
packet->http_num_headers++;
}
/* "X-Session-Type:" header line in HTTP. */
if(packet->line[packet->parsed_lines].len > 16
&& strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "X-Session-Type: ", 16) == 0) {
packet->http_x_session_type.ptr = &packet->line[packet->parsed_lines].ptr[16];
packet->http_x_session_type.len = packet->line[packet->parsed_lines].len - 16;
packet->http_num_headers++;
}
/* Identification and counting of other HTTP headers.
* We consider the most common headers, but there are many others,
* which can be seen at references below:
* - https://tools.ietf.org/html/rfc7230
* - https://en.wikipedia.org/wiki/List_of_HTTP_header_fields
*/
if((packet->line[packet->parsed_lines].len > 6 && ( strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Date: ", 6) == 0 ||
strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Vary: ", 6) == 0 ||
strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "ETag: ", 6) == 0 )) ||
(packet->line[packet->parsed_lines].len > 8 && strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Pragma: ", 8) == 0) ||
(packet->line[packet->parsed_lines].len > 9 && strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Expires: ", 9) == 0) ||
(packet->line[packet->parsed_lines].len > 12 && ( strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Set-Cookie: ", 12) == 0 ||
strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Keep-Alive: ", 12) == 0 ||
strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Connection: ", 12) == 0)) ||
(packet->line[packet->parsed_lines].len > 15 && ( strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Last-Modified: ", 15) == 0 ||
strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Accept-Ranges: ", 15) == 0)) ||
(packet->line[packet->parsed_lines].len > 17 && ( strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Accept-Language: ", 17) == 0 ||
strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Accept-Encoding: ", 17) == 0)) ||
(packet->line[packet->parsed_lines].len > 27 && strncasecmp((const char *)packet->line[packet->parsed_lines].ptr, "Upgrade-Insecure-Requests: ", 27) == 0)) {
/* Just count. In the future, if needed, this if can be splited to parse these headers */
packet->http_num_headers++;
}
if(packet->line[packet->parsed_lines].len == 0) {
packet->empty_line_position = a;
packet->empty_line_position_set = 1;
}
if(packet->parsed_lines >= (NDPI_MAX_PARSE_LINES_PER_PACKET - 1))
return;
packet->parsed_lines++;
packet->line[packet->parsed_lines].ptr = &packet->payload[a + 2];
packet->line[packet->parsed_lines].len = 0;
if((a + 2) >= packet->payload_packet_len)
return;
a++; /* next char in the payload */
}
}
if(packet->parsed_lines >= 1) {
packet->line[packet->parsed_lines].len
= (u_int16_t)(((unsigned long) &packet->payload[packet->payload_packet_len]) -
((unsigned long) packet->line[packet->parsed_lines].ptr));
packet->parsed_lines++;
}
}
/* ********************************************************************************* */
void ndpi_parse_packet_line_info_any(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow)
{
struct ndpi_packet_struct *packet = &flow->packet;
u_int32_t a;
u_int16_t end = packet->payload_packet_len;
if(packet->packet_lines_parsed_complete != 0)
return;
packet->packet_lines_parsed_complete = 1;
packet->parsed_lines = 0;
if(packet->payload_packet_len == 0)
return;
packet->line[packet->parsed_lines].ptr = packet->payload;
packet->line[packet->parsed_lines].len = 0;
for(a = 0; a < end; a++) {
if(packet->payload[a] == 0x0a) {
packet->line[packet->parsed_lines].len = (u_int16_t)(
((unsigned long) &packet->payload[a]) -
((unsigned long) packet->line[packet->parsed_lines].ptr));
if(a > 0 && packet->payload[a-1] == 0x0d)
packet->line[packet->parsed_lines].len--;
if(packet->parsed_lines >= (NDPI_MAX_PARSE_LINES_PER_PACKET - 1))
break;
packet->parsed_lines++;
packet->line[packet->parsed_lines].ptr = &packet->payload[a + 1];
packet->line[packet->parsed_lines].len = 0;
if((a + 1) >= packet->payload_packet_len)
break;
//a++;
}
}
}
/* ********************************************************************************* */
u_int16_t ndpi_check_for_email_address(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow, u_int16_t counter)
{
struct ndpi_packet_struct *packet = &flow->packet;
NDPI_LOG_DBG2(ndpi_struct, "called ndpi_check_for_email_address\n");
if(packet->payload_packet_len > counter && ((packet->payload[counter] >= 'a' && packet->payload[counter] <= 'z')
|| (packet->payload[counter] >= 'A' && packet->payload[counter] <= 'Z')
|| (packet->payload[counter] >= '0' && packet->payload[counter] <= '9')
|| packet->payload[counter] == '-' || packet->payload[counter] == '_')) {
NDPI_LOG_DBG2(ndpi_struct, "first letter\n");
counter++;
while (packet->payload_packet_len > counter
&& ((packet->payload[counter] >= 'a' && packet->payload[counter] <= 'z')
|| (packet->payload[counter] >= 'A' && packet->payload[counter] <= 'Z')
|| (packet->payload[counter] >= '0' && packet->payload[counter] <= '9')
|| packet->payload[counter] == '-' || packet->payload[counter] == '_'
|| packet->payload[counter] == '.')) {
NDPI_LOG_DBG2(ndpi_struct, "further letter\n");
counter++;
if(packet->payload_packet_len > counter && packet->payload[counter] == '@') {
NDPI_LOG_DBG2(ndpi_struct, "@\n");
counter++;
while (packet->payload_packet_len > counter
&& ((packet->payload[counter] >= 'a' && packet->payload[counter] <= 'z')
|| (packet->payload[counter] >= 'A' && packet->payload[counter] <= 'Z')
|| (packet->payload[counter] >= '0' && packet->payload[counter] <= '9')
|| packet->payload[counter] == '-' || packet->payload[counter] == '_')) {
NDPI_LOG_DBG2(ndpi_struct, "letter\n");
counter++;
if(packet->payload_packet_len > counter && packet->payload[counter] == '.') {
NDPI_LOG_DBG2(ndpi_struct, ".\n");
counter++;
if(packet->payload_packet_len > counter + 1
&& ((packet->payload[counter] >= 'a' && packet->payload[counter] <= 'z')
&& (packet->payload[counter + 1] >= 'a' && packet->payload[counter + 1] <= 'z'))) {
NDPI_LOG_DBG2(ndpi_struct, "two letters\n");
counter += 2;
if(packet->payload_packet_len > counter
&& (packet->payload[counter] == ' ' || packet->payload[counter] == ';')) {
NDPI_LOG_DBG2(ndpi_struct, "whitespace1\n");
return counter;
} else if(packet->payload_packet_len > counter && packet->payload[counter] >= 'a'
&& packet->payload[counter] <= 'z') {
NDPI_LOG_DBG2(ndpi_struct, "one letter\n");
counter++;
if(packet->payload_packet_len > counter
&& (packet->payload[counter] == ' ' || packet->payload[counter] == ';')) {
NDPI_LOG_DBG2(ndpi_struct, "whitespace2\n");
return counter;
} else if(packet->payload_packet_len > counter && packet->payload[counter] >= 'a'
&& packet->payload[counter] <= 'z') {
counter++;
if(packet->payload_packet_len > counter
&& (packet->payload[counter] == ' ' || packet->payload[counter] == ';')) {
NDPI_LOG_DBG2(ndpi_struct, "whitespace3\n");
return counter;
} else {
return 0;
}
} else {
return 0;
}
} else {
return 0;
}
} else {
return 0;
}
}
}
return 0;
}
}
}
return 0;
}
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
/* ********************************************************************************* */
void ndpi_debug_get_last_log_function_line(struct ndpi_detection_module_struct
*ndpi_struct, const char **file, const char **func, u_int32_t * line)
{
*file = "";
*func = "";
if(ndpi_struct->ndpi_debug_print_file != NULL)
*file = ndpi_struct->ndpi_debug_print_file;
if(ndpi_struct->ndpi_debug_print_function != NULL)
*func = ndpi_struct->ndpi_debug_print_function;
*line = ndpi_struct->ndpi_debug_print_line;
}
#endif
/* ********************************************************************************* */
u_int8_t ndpi_detection_get_l4(const u_int8_t * l3, u_int16_t l3_len, const u_int8_t ** l4_return, u_int16_t * l4_len_return,
u_int8_t * l4_protocol_return, u_int32_t flags)
{
return ndpi_detection_get_l4_internal(NULL, l3, l3_len, l4_return, l4_len_return, l4_protocol_return, flags);
}
/* ********************************************************************************* */
void ndpi_set_detected_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t upper_detected_protocol,
u_int16_t lower_detected_protocol)
{
struct ndpi_id_struct *src = flow->src;
struct ndpi_id_struct *dst = flow->dst;
ndpi_int_change_protocol(ndpi_struct, flow, upper_detected_protocol, lower_detected_protocol);
if(src != NULL) {
NDPI_ADD_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, upper_detected_protocol);
if(lower_detected_protocol != NDPI_PROTOCOL_UNKNOWN)
NDPI_ADD_PROTOCOL_TO_BITMASK(src->detected_protocol_bitmask, lower_detected_protocol);
}
if(dst != NULL) {
NDPI_ADD_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask, upper_detected_protocol);
if(lower_detected_protocol != NDPI_PROTOCOL_UNKNOWN)
NDPI_ADD_PROTOCOL_TO_BITMASK(dst->detected_protocol_bitmask, lower_detected_protocol);
}
}
/* ********************************************************************************* */
u_int16_t ndpi_get_flow_masterprotocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow) {
return(flow->detected_protocol_stack[1]);
}
/* ********************************************************************************* */
void ndpi_int_change_flow_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t upper_detected_protocol,
u_int16_t lower_detected_protocol) {
if(!flow) return;
flow->detected_protocol_stack[0] = upper_detected_protocol, flow->detected_protocol_stack[1] = lower_detected_protocol;
}
/* ********************************************************************************* */
void ndpi_int_change_packet_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t upper_detected_protocol,
u_int16_t lower_detected_protocol) {
struct ndpi_packet_struct *packet = &flow->packet;
/* NOTE: everything below is identically to change_flow_protocol
* except flow->packet If you want to change something here,
* don't! Change it for the flow function and apply it here
* as well */
if(!packet)
return;
packet->detected_protocol_stack[0] = upper_detected_protocol,
packet->detected_protocol_stack[1] = lower_detected_protocol;
}
/* ********************************************************************************* */
/* generic function for changing the protocol
*
* what it does is:
* 1.update the flow protocol stack with the new protocol
* 2.update the packet protocol stack with the new protocol
*/
void ndpi_int_change_protocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
u_int16_t upper_detected_protocol,
u_int16_t lower_detected_protocol) {
if((upper_detected_protocol == NDPI_PROTOCOL_UNKNOWN)
&& (lower_detected_protocol != NDPI_PROTOCOL_UNKNOWN))
upper_detected_protocol = lower_detected_protocol;
if(upper_detected_protocol == lower_detected_protocol)
lower_detected_protocol = NDPI_PROTOCOL_UNKNOWN;
ndpi_int_change_flow_protocol(ndpi_struct, flow,
upper_detected_protocol, lower_detected_protocol);
ndpi_int_change_packet_protocol(ndpi_struct, flow,
upper_detected_protocol, lower_detected_protocol);
}
/* ********************************************************************************* */
/* change protocol only if guessing is active */
/* void ndpi_guess_change_protocol(struct ndpi_detection_module_struct *ndpi_struct, */
/* struct ndpi_flow_struct *flow) */
/* { */
/* if(flow->guessed_host_protocol_id != 0 && */
/* flow->guessed_protocol_id != 0) { */
/* /\* app proto for flow *\/ */
/* flow->detected_protocol_stack[0] = flow->guessed_host_protocol_id; */
/* /\* master proto for flow *\/ */
/* flow->detected_protocol_stack[1] = flow->guessed_protocol_id; */
/* /\* app proto for packet *\/ */
/* flow->packet.detected_protocol_stack[0] = flow->guessed_host_protocol_id; */
/* /\* master proto for packet *\/ */
/* flow->packet.detected_protocol_stack[1] = flow->guessed_protocol_id; */
/* } */
/* } */
/* ********************************************************************************* */
/* turns a packet back to unknown */
void ndpi_int_reset_packet_protocol(struct ndpi_packet_struct *packet) {
int a;
for(a = 0; a < NDPI_PROTOCOL_SIZE; a++)
packet->detected_protocol_stack[a] = NDPI_PROTOCOL_UNKNOWN;
}
/* ********************************************************************************* */
void ndpi_int_reset_protocol(struct ndpi_flow_struct *flow) {
if(flow) {
int a;
for(a = 0; a < NDPI_PROTOCOL_SIZE; a++) {
flow->detected_protocol_stack[a] = NDPI_PROTOCOL_UNKNOWN;
}
}
}
/* ********************************************************************************* */
void NDPI_PROTOCOL_IP_clear(ndpi_ip_addr_t * ip) {
memset(ip, 0, sizeof(ndpi_ip_addr_t));
}
/* ********************************************************************************* */
/* NTOP */
int NDPI_PROTOCOL_IP_is_set(const ndpi_ip_addr_t * ip)
{
return memcmp(ip, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", sizeof(ndpi_ip_addr_t)) != 0;
}
/* ********************************************************************************* */
/* check if the source ip address in packet and ip are equal */
/* NTOP */
int ndpi_packet_src_ip_eql(const struct ndpi_packet_struct *packet, const ndpi_ip_addr_t * ip)
{
#ifdef NDPI_DETECTION_SUPPORT_IPV6
/* IPv6 */
if(packet->iphv6 != NULL) {
if(packet->iphv6->ip6_src.u6_addr.u6_addr32[0] == ip->ipv6.u6_addr.u6_addr32[0] &&
packet->iphv6->ip6_src.u6_addr.u6_addr32[1] == ip->ipv6.u6_addr.u6_addr32[1] &&
packet->iphv6->ip6_src.u6_addr.u6_addr32[2] == ip->ipv6.u6_addr.u6_addr32[2] &&
packet->iphv6->ip6_src.u6_addr.u6_addr32[3] == ip->ipv6.u6_addr.u6_addr32[3])
return 1;
//else
return 0;
}
#endif
/* IPv4 */
if(packet->iph->saddr == ip->ipv4)
return 1;
return 0;
}
/* ********************************************************************************* */
/* check if the destination ip address in packet and ip are equal */
int ndpi_packet_dst_ip_eql(const struct ndpi_packet_struct *packet, const ndpi_ip_addr_t * ip)
{
#ifdef NDPI_DETECTION_SUPPORT_IPV6
/* IPv6 */
if(packet->iphv6 != NULL) {
if(packet->iphv6->ip6_dst.u6_addr.u6_addr32[0] == ip->ipv6.u6_addr.u6_addr32[0] &&
packet->iphv6->ip6_dst.u6_addr.u6_addr32[1] == ip->ipv6.u6_addr.u6_addr32[1] &&
packet->iphv6->ip6_dst.u6_addr.u6_addr32[2] == ip->ipv6.u6_addr.u6_addr32[2] &&
packet->iphv6->ip6_dst.u6_addr.u6_addr32[3] == ip->ipv6.u6_addr.u6_addr32[3])
return 1;
//else
return 0;
}
#endif
/* IPv4 */
if(packet->iph->saddr == ip->ipv4)
return 1;
return 0;
}
/* ********************************************************************************* */
/* get the source ip address from packet and put it into ip */
/* NTOP */
void ndpi_packet_src_ip_get(const struct ndpi_packet_struct *packet, ndpi_ip_addr_t * ip)
{
NDPI_PROTOCOL_IP_clear(ip);
#ifdef NDPI_DETECTION_SUPPORT_IPV6
/* IPv6 */
if(packet->iphv6 != NULL) {
ip->ipv6.u6_addr.u6_addr32[0] = packet->iphv6->ip6_src.u6_addr.u6_addr32[0];
ip->ipv6.u6_addr.u6_addr32[1] = packet->iphv6->ip6_src.u6_addr.u6_addr32[1];
ip->ipv6.u6_addr.u6_addr32[2] = packet->iphv6->ip6_src.u6_addr.u6_addr32[2];
ip->ipv6.u6_addr.u6_addr32[3] = packet->iphv6->ip6_src.u6_addr.u6_addr32[3];
} else
#endif
/* IPv4 */
ip->ipv4 = packet->iph->saddr;
}
/* ********************************************************************************* */
/* get the destination ip address from packet and put it into ip */
/* NTOP */
void ndpi_packet_dst_ip_get(const struct ndpi_packet_struct *packet, ndpi_ip_addr_t * ip)
{
NDPI_PROTOCOL_IP_clear(ip);
#ifdef NDPI_DETECTION_SUPPORT_IPV6
if(packet->iphv6 != NULL) {
ip->ipv6.u6_addr.u6_addr32[0] = packet->iphv6->ip6_dst.u6_addr.u6_addr32[0];
ip->ipv6.u6_addr.u6_addr32[1] = packet->iphv6->ip6_dst.u6_addr.u6_addr32[1];
ip->ipv6.u6_addr.u6_addr32[2] = packet->iphv6->ip6_dst.u6_addr.u6_addr32[2];
ip->ipv6.u6_addr.u6_addr32[3] = packet->iphv6->ip6_dst.u6_addr.u6_addr32[3];
} else
#endif
ip->ipv4 = packet->iph->daddr;
}
/* ********************************************************************************* */
#ifdef NDPI_ENABLE_DEBUG_MESSAGES
/* get the string representation of ip
* returns a pointer to a static string
* only valid until the next call of this function */
char *ndpi_get_ip_string(struct ndpi_detection_module_struct *ndpi_struct,
const ndpi_ip_addr_t * ip)
{
const u_int8_t *a = (const u_int8_t *) &ip->ipv4;
#ifdef NDPI_DETECTION_SUPPORT_IPV6
if(ip->ipv6.u6_addr.u6_addr32[0] != 0 ||
ip->ipv6.u6_addr.u6_addr32[1] != 0 ||
ip->ipv6.u6_addr.u6_addr32[2] != 0 ||
ip->ipv6.u6_addr.u6_addr32[3] != 0) {
const u_int16_t *b = ip->ipv6.u6_addr.u6_addr16;
snprintf(ndpi_struct->ip_string, 32, "%x:%x:%x:%x:%x:%x:%x:%x",
ntohs(b[0]), ntohs(b[1]), ntohs(b[2]), ntohs(b[3]),
ntohs(b[4]), ntohs(b[5]), ntohs(b[6]), ntohs(b[7]));
return ndpi_struct->ip_string;
}
#endif
snprintf(ndpi_struct->ip_string, 32, "%u.%u.%u.%u", a[0], a[1], a[2], a[3]);
return ndpi_struct->ip_string;
}
/* ********************************************************************************* */
/* get the string representation of the source ip address from packet */
char *ndpi_get_packet_src_ip_string(struct ndpi_detection_module_struct *ndpi_struct,
const struct ndpi_packet_struct *packet)
{
ndpi_ip_addr_t ip;
ndpi_packet_src_ip_get(packet, &ip);
return ndpi_get_ip_string(ndpi_struct, &ip);
}
/* ********************************************************************************* */
/* get the string representation of the destination ip address from packet */
char *ndpi_get_packet_dst_ip_string(struct ndpi_detection_module_struct *ndpi_struct,
const struct ndpi_packet_struct *packet)
{
ndpi_ip_addr_t ip;
ndpi_packet_dst_ip_get(packet, &ip);
return ndpi_get_ip_string(ndpi_struct, &ip);
}
#endif /* NDPI_ENABLE_DEBUG_MESSAGES */
/* ****************************************************** */
u_int16_t ntohs_ndpi_bytestream_to_number(const u_int8_t * str,
u_int16_t max_chars_to_read, u_int16_t * bytes_read)
{
u_int16_t val = ndpi_bytestream_to_number(str, max_chars_to_read, bytes_read);
return ntohs(val);
}
/* ****************************************************** */
u_int8_t ndpi_is_proto(ndpi_protocol proto, u_int16_t p) {
return(((proto.app_protocol == p) || (proto.master_protocol == p)) ? 1 : 0);
}
/* ****************************************************** */
u_int16_t ndpi_get_lower_proto(ndpi_protocol proto) {
return((proto.master_protocol != NDPI_PROTOCOL_UNKNOWN) ? proto.master_protocol : proto.app_protocol);
}
/* ****************************************************** */
ndpi_protocol ndpi_guess_undetected_protocol(struct ndpi_detection_module_struct *ndpi_struct,
u_int8_t proto,
u_int32_t shost /* host byte order */, u_int16_t sport,
u_int32_t dhost /* host byte order */, u_int16_t dport) {
u_int32_t rc;
struct in_addr addr;
ndpi_protocol ret = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED };
u_int8_t user_defined_proto;
if((proto == IPPROTO_TCP) || (proto == IPPROTO_UDP)) {
rc = ndpi_search_tcp_or_udp_raw(ndpi_struct, NULL, proto,
shost, dhost, sport, dport);
if(rc != NDPI_PROTOCOL_UNKNOWN) {
ret.app_protocol = rc,
ret.master_protocol = ndpi_guess_protocol_id(ndpi_struct, proto, sport, dport, &user_defined_proto);
if(ret.app_protocol == ret.master_protocol)
ret.master_protocol = NDPI_PROTOCOL_UNKNOWN;
return(ret);
}
rc = ndpi_guess_protocol_id(ndpi_struct, proto, sport, dport, &user_defined_proto);
if(rc != NDPI_PROTOCOL_UNKNOWN) {
ret.app_protocol = rc;
if(rc == NDPI_PROTOCOL_SSL)
goto check_guessed_skype;
else
return(ret);
}
check_guessed_skype:
addr.s_addr = htonl(shost);
if(ndpi_network_ptree_match(ndpi_struct, &addr) == NDPI_PROTOCOL_SKYPE) {
ret.app_protocol = NDPI_PROTOCOL_SKYPE;
} else {
addr.s_addr = htonl(dhost);
if(ndpi_network_ptree_match(ndpi_struct, &addr) == NDPI_PROTOCOL_SKYPE)
ret.app_protocol = NDPI_PROTOCOL_SKYPE;
}
} else
ret.app_protocol = ndpi_guess_protocol_id(ndpi_struct, proto, sport, dport, &user_defined_proto);
return(ret);
}
/* ****************************************************** */
char* ndpi_protocol2name(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol proto, char *buf, u_int buf_len) {
if((proto.master_protocol != NDPI_PROTOCOL_UNKNOWN)
&& (proto.master_protocol != proto.app_protocol)) {
if(proto.app_protocol != NDPI_PROTOCOL_UNKNOWN)
snprintf(buf, buf_len, "%s.%s",
ndpi_get_proto_name(ndpi_mod, proto.master_protocol),
ndpi_get_proto_name(ndpi_mod, proto.app_protocol));
else
snprintf(buf, buf_len, "%s",
ndpi_get_proto_name(ndpi_mod, proto.master_protocol));
} else
snprintf(buf, buf_len, "%s",
ndpi_get_proto_name(ndpi_mod, proto.app_protocol));
return(buf);
}
/* ****************************************************** */
int ndpi_is_custom_category(ndpi_protocol_category_t category) {
switch(category) {
case NDPI_PROTOCOL_CATEGORY_CUSTOM_1:
case NDPI_PROTOCOL_CATEGORY_CUSTOM_2:
case NDPI_PROTOCOL_CATEGORY_CUSTOM_3:
case NDPI_PROTOCOL_CATEGORY_CUSTOM_4:
case NDPI_PROTOCOL_CATEGORY_CUSTOM_5:
return(1);
break;
default:
return(0);
break;
}
}
/* ****************************************************** */
void ndpi_category_set_name(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol_category_t category, char *name) {
if(!name) return;
switch(category) {
case NDPI_PROTOCOL_CATEGORY_CUSTOM_1:
snprintf(ndpi_mod->custom_category_labels[0], CUSTOM_CATEGORY_LABEL_LEN, "%s", name);
break;
case NDPI_PROTOCOL_CATEGORY_CUSTOM_2:
snprintf(ndpi_mod->custom_category_labels[1], CUSTOM_CATEGORY_LABEL_LEN, "%s", name);
break;
case NDPI_PROTOCOL_CATEGORY_CUSTOM_3:
snprintf(ndpi_mod->custom_category_labels[2], CUSTOM_CATEGORY_LABEL_LEN, "%s", name);
break;
case NDPI_PROTOCOL_CATEGORY_CUSTOM_4:
snprintf(ndpi_mod->custom_category_labels[3], CUSTOM_CATEGORY_LABEL_LEN, "%s", name);
break;
case NDPI_PROTOCOL_CATEGORY_CUSTOM_5:
snprintf(ndpi_mod->custom_category_labels[4], CUSTOM_CATEGORY_LABEL_LEN, "%s", name);
break;
default:
break;
}
}
/* ****************************************************** */
/* Keep it in order and in sync with ndpi_protocol_category_t in ndpi_typedefs.h */
static const char* categories[] = {
"Unspecified",
"Media",
"VPN",
"Email",
"DataTransfer",
"Web",
"SocialNetwork",
"Download-FileTransfer-FileSharing",
"Game",
"Chat",
"VoIP",
"Database",
"RemoteAccess",
"Cloud",
"Network",
"Collaborative",
"RPC",
"Streaming",
"System",
"SoftwareUpdate",
"",
"",
"",
"",
"",
"AVI",
"Flash",
"OGG",
"MPEG",
"QuickTime",
"RealMedia",
"WindowsMedia",
"Webm",
};
const char* ndpi_category_get_name(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol_category_t category) {
if(!ndpi_mod) return(NULL);
if(category < NDPI_PROTOCOL_CATEGORY_CUSTOM_1)
return(categories[category]);
else {
switch(category) {
case NDPI_PROTOCOL_CATEGORY_CUSTOM_1:
return(ndpi_mod->custom_category_labels[0]);
case NDPI_PROTOCOL_CATEGORY_CUSTOM_2:
return(ndpi_mod->custom_category_labels[1]);
case NDPI_PROTOCOL_CATEGORY_CUSTOM_3:
return(ndpi_mod->custom_category_labels[2]);
case NDPI_PROTOCOL_CATEGORY_CUSTOM_4:
return(ndpi_mod->custom_category_labels[3]);
case NDPI_PROTOCOL_CATEGORY_CUSTOM_5:
return(ndpi_mod->custom_category_labels[4]);
case NDPI_PROTOCOL_NUM_CATEGORIES:
return("Code should not use this internal constant");
default:
return("Unspecified");
}
}
}
/* ****************************************************** */
ndpi_protocol_category_t ndpi_get_proto_category(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol proto) {
/* simple rule: sub protocol first, master after */
if((proto.master_protocol == NDPI_PROTOCOL_UNKNOWN) ||
(ndpi_mod->proto_defaults[proto.app_protocol].protoCategory != NDPI_PROTOCOL_CATEGORY_UNSPECIFIED))
return ndpi_mod->proto_defaults[proto.app_protocol].protoCategory;
else
return ndpi_mod->proto_defaults[proto.master_protocol].protoCategory;
}
/* ****************************************************** */
char* ndpi_get_proto_name(struct ndpi_detection_module_struct *ndpi_mod, u_int16_t proto_id) {
if((proto_id >= ndpi_mod->ndpi_num_supported_protocols)
|| ((proto_id < (NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS))
&& (ndpi_mod->proto_defaults[proto_id].protoName == NULL)))
proto_id = NDPI_PROTOCOL_UNKNOWN;
return(ndpi_mod->proto_defaults[proto_id].protoName);
}
/* ****************************************************** */
ndpi_protocol_breed_t ndpi_get_proto_breed(struct ndpi_detection_module_struct *ndpi_mod,
u_int16_t proto_id) {
if((proto_id >= ndpi_mod->ndpi_num_supported_protocols)
|| ((proto_id < (NDPI_MAX_SUPPORTED_PROTOCOLS+NDPI_MAX_NUM_CUSTOM_PROTOCOLS))
&& (ndpi_mod->proto_defaults[proto_id].protoName == NULL)))
proto_id = NDPI_PROTOCOL_UNKNOWN;
return(ndpi_mod->proto_defaults[proto_id].protoBreed);
}
/* ****************************************************** */
char* ndpi_get_proto_breed_name(struct ndpi_detection_module_struct *ndpi_mod,
ndpi_protocol_breed_t breed_id) {
switch(breed_id) {
case NDPI_PROTOCOL_SAFE:
return("Safe");
break;
case NDPI_PROTOCOL_ACCEPTABLE:
return("Acceptable");
break;
case NDPI_PROTOCOL_FUN:
return("Fun");
break;
case NDPI_PROTOCOL_UNSAFE:
return("Unsafe");
break;
case NDPI_PROTOCOL_POTENTIALLY_DANGEROUS:
return("Dangerous");
break;
case NDPI_PROTOCOL_UNRATED:
default:
return("Unrated");
break;
}
}
/* ****************************************************** */
int ndpi_get_protocol_id(struct ndpi_detection_module_struct *ndpi_mod, char *proto) {
int i;
for(i=0; i<(int)ndpi_mod->ndpi_num_supported_protocols; i++)
if(strcasecmp(proto, ndpi_mod->proto_defaults[i].protoName) == 0)
return(i);
return(-1);
}
/* ****************************************************** */
int ndpi_get_category_id(struct ndpi_detection_module_struct *ndpi_mod, char *cat) {
int i;
const char *name;
for(i = 0; i < NDPI_PROTOCOL_NUM_CATEGORIES; i++) {
name = ndpi_category_get_name(ndpi_mod, i);
if(strcasecmp(cat, name) == 0)
return(i);
}
return(-1);
}
/* ****************************************************** */
void ndpi_dump_protocols(struct ndpi_detection_module_struct *ndpi_mod) {
int i;
for(i=0; i<(int)ndpi_mod->ndpi_num_supported_protocols; i++)
printf("[%3d] %s\n", i, ndpi_mod->proto_defaults[i].protoName);
}
/* ****************************************************** */
/*
* Find the first occurrence of find in s, where the search is limited to the
* first slen characters of s.
*/
char* ndpi_strnstr(const char *s, const char *find, size_t slen) {
char c, sc;
size_t len;
if((c = *find++) != '\0') {
len = strlen(find);
do {
do {
if(slen-- < 1 || (sc = *s++) == '\0')
return (NULL);
} while (sc != c);
if(len > slen)
return (NULL);
} while (strncmp(s, find, len) != 0);
s--;
}
return ((char *)s);
}
/* ****************************************************** */
/*
* Same as ndpi_strnstr but case-insensitive
*/
char* ndpi_strncasestr(const char *s, const char *find, size_t slen) {
char c, sc;
size_t len;
if((c = *find++) != '\0') {
len = strlen(find);
do {
do {
if(slen-- < 1 || (sc = *s++) == '\0')
return (NULL);
} while (sc != c);
if(len > slen)
return (NULL);
} while (strncasecmp(s, find, len) != 0);
s--;
}
return ((char *)s);
}
/* ****************************************************** */
int ndpi_match_prefix(const u_int8_t *payload, size_t payload_len,
const char *str, size_t str_len)
{
int rc = str_len <= payload_len ? memcmp(payload, str, str_len) == 0 : 0;
return rc;
}
/* ****************************************************** */
int ndpi_match_string_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
char *string_to_match, u_int string_to_match_len,
u_int8_t is_host_match) {
AC_REP_t match = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED, NDPI_PROTOCOL_UNRATED };
AC_TEXT_t ac_input_text;
ndpi_automa *automa = is_host_match ? &ndpi_struct->host_automa : &ndpi_struct->content_automa;
if((automa->ac_automa == NULL) || (string_to_match_len == 0)) return(NDPI_PROTOCOL_UNKNOWN);
if(!automa->ac_automa_finalized) {
ac_automata_finalize((AC_AUTOMATA_t*)automa->ac_automa);
automa->ac_automa_finalized = 1;
}
ac_input_text.astring = string_to_match, ac_input_text.length = string_to_match_len;
ac_automata_search(((AC_AUTOMATA_t*)automa->ac_automa), &ac_input_text, &match);
ac_automata_reset(((AC_AUTOMATA_t*)automa->ac_automa));
return(match.number);
}
/* ****************************************************** */
#ifndef HAVE_HYPERSCAN
static int ndpi_automa_match_string_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
char *string_to_match, u_int string_to_match_len,
u_int16_t master_protocol_id,
u_int8_t is_host_match) {
int matching_protocol_id = ndpi_match_string_subprotocol(ndpi_struct, string_to_match, string_to_match_len, is_host_match);
struct ndpi_packet_struct *packet = &flow->packet;
#ifdef DEBUG
{
char m[256];
int len = ndpi_min(sizeof(m), string_to_match_len);
strncpy(m, string_to_match, len);
m[len] = '\0';
NDPI_LOG_DBG2(ndpi_struct, "[NDPI] ndpi_match_host_subprotocol(%s): %s\n",
m, ndpi_struct->proto_defaults[matching_protocol_id].protoName);
}
#endif
if(matching_protocol_id != NDPI_PROTOCOL_UNKNOWN) {
/* Move the protocol on slot 0 down one position */
packet->detected_protocol_stack[1] = master_protocol_id,
packet->detected_protocol_stack[0] = matching_protocol_id;
flow->detected_protocol_stack[0] = packet->detected_protocol_stack[0],
flow->detected_protocol_stack[1] = packet->detected_protocol_stack[1];
return(packet->detected_protocol_stack[0]);
}
#ifdef DEBUG
string_to_match[string_to_match_len] = '\0';
NDPI_LOG_DBG2(ndpi_struct, "[NTOP] Unable to find a match for '%s'\n", string_to_match);
#endif
return(NDPI_PROTOCOL_UNKNOWN);
}
#else
/* ******************************************************************** */
static int hyperscanEventHandler(unsigned int id, unsigned long long from,
unsigned long long to, unsigned int flags, void *ctx) {
*((int *)ctx) = (int)id;
return HS_SCAN_TERMINATED;
}
/* *********************************************** */
static int ndpi_automa_match_string_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
char *string_to_match, u_int string_to_match_len,
u_int16_t master_protocol_id,
u_int8_t is_host_match) {
int rv = NDPI_PROTOCOL_UNKNOWN;
struct hs *hs = (struct hs*)ndpi_struct->hyperscan;
if(hs_scan(hs->database, string_to_match,
string_to_match_len, 0, hs->scratch,
hyperscanEventHandler, &rv) != HS_SUCCESS)
NDPI_LOG_ERR(ndpi_struct, "[NDPI] Hyperscan match returned error\n");
return rv;
}
#endif
/* ****************************************************** */
int ndpi_match_host_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
char *string_to_match, u_int string_to_match_len,
u_int16_t master_protocol_id) {
return(ndpi_automa_match_string_subprotocol(ndpi_struct,
flow, string_to_match, string_to_match_len,
master_protocol_id, 1));
}
/* ****************************************************** */
int ndpi_match_content_subprotocol(struct ndpi_detection_module_struct *ndpi_struct,
struct ndpi_flow_struct *flow,
char *string_to_match, u_int string_to_match_len,
u_int16_t master_protocol_id) {
return(ndpi_automa_match_string_subprotocol(ndpi_struct, flow,
string_to_match, string_to_match_len,
master_protocol_id, 0));
}
/* ****************************************************** */
int ndpi_match_bigram(struct ndpi_detection_module_struct *ndpi_struct,
ndpi_automa *automa, char *bigram_to_match) {
AC_TEXT_t ac_input_text;
AC_REP_t match = { NDPI_PROTOCOL_UNKNOWN, NDPI_PROTOCOL_CATEGORY_UNSPECIFIED, NDPI_PROTOCOL_UNRATED };
if((automa->ac_automa == NULL) || (bigram_to_match == NULL))
return(-1);
if(!automa->ac_automa_finalized) {
ac_automata_finalize((AC_AUTOMATA_t*)automa->ac_automa);
automa->ac_automa_finalized = 1;
}
ac_input_text.astring = bigram_to_match, ac_input_text.length = 2;
ac_automata_search(((AC_AUTOMATA_t*)automa->ac_automa), &ac_input_text, &match);
ac_automata_reset(((AC_AUTOMATA_t*)automa->ac_automa));
return(match.number);
}
/* ****************************************************** */
void ndpi_free_flow(struct ndpi_flow_struct *flow) {
if(flow) {
if(flow->http.url)
ndpi_free(flow->http.url);
if(flow->http.content_type)
ndpi_free(flow->http.content_type);
ndpi_free(flow);
}
}
/* ****************************************************** */
char* ndpi_revision() { return(NDPI_GIT_RELEASE); }
/* ****************************************************** */
#ifdef WIN32
/* http://git.postgresql.org/gitweb/?p=postgresql.git;a=blob;f=src/port/gettimeofday.c;h=75a91993b74414c0a1c13a2a09ce739cb8aa8a08;hb=HEAD */
int gettimeofday(struct timeval * tp, struct timezone * tzp) {
/* FILETIME of Jan 1 1970 00:00:00. */
const unsigned __int64 epoch = (__int64)(116444736000000000);
FILETIME file_time;
SYSTEMTIME system_time;
ULARGE_INTEGER ularge;
GetSystemTime(&system_time);
SystemTimeToFileTime(&system_time, &file_time);
ularge.LowPart = file_time.dwLowDateTime;
ularge.HighPart = file_time.dwHighDateTime;
tp->tv_sec = (long) ((ularge.QuadPart - epoch) / 10000000L);
tp->tv_usec = (long) (system_time.wMilliseconds * 1000);
return 0;
}
#endif
int NDPI_BITMASK_COMPARE(NDPI_PROTOCOL_BITMASK a, NDPI_PROTOCOL_BITMASK b) {
int i;
for(i=0; i<NDPI_NUM_FDS_BITS; i++) {
if(a.fds_bits[i] & b.fds_bits[i])
return(1);
}
return(0);
}
int NDPI_BITMASK_IS_EMPTY(NDPI_PROTOCOL_BITMASK a) {
int i;
for(i=0; i<NDPI_NUM_FDS_BITS; i++)
if(a.fds_bits[i] != 0)
return(0);
return(1);
}
void NDPI_DUMP_BITMASK(NDPI_PROTOCOL_BITMASK a) {
int i;
for(i=0; i<NDPI_NUM_FDS_BITS; i++)
printf("[%d=%u]", i, a.fds_bits[i]);
printf("\n");
}
u_int8_t ndpi_get_api_version() {
return(NDPI_API_VERSION);
}
ndpi_proto_defaults_t* ndpi_get_proto_defaults(struct ndpi_detection_module_struct *ndpi_mod) {
return(ndpi_mod->proto_defaults);
}
u_int ndpi_get_ndpi_num_supported_protocols(struct ndpi_detection_module_struct *ndpi_mod) {
return(ndpi_mod->ndpi_num_supported_protocols);
}
u_int ndpi_get_ndpi_num_custom_protocols(struct ndpi_detection_module_struct *ndpi_mod) {
return(ndpi_mod->ndpi_num_custom_protocols);
}
u_int ndpi_get_ndpi_detection_module_size() {
return(sizeof(struct ndpi_detection_module_struct));
}
void ndpi_set_log_level(struct ndpi_detection_module_struct *ndpi_mod, u_int l) {
ndpi_mod->ndpi_log_level = l;
}