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-rw-r--r--example/ndpiReader.c1
-rw-r--r--src/include/ndpi_api.h2
-rw-r--r--src/include/ndpi_main.h1
-rw-r--r--src/include/ndpi_protocol_ids.h2
-rw-r--r--src/include/ndpi_typedefs.h2
-rw-r--r--src/lib/ndpi_content_match.c.inc13
-rw-r--r--src/lib/ndpi_main.c93
-rw-r--r--src/lib/protocols/dropbox.c26
-rw-r--r--src/lib/protocols/eaq.c10
-rw-r--r--src/lib/protocols/skype.c17
10 files changed, 107 insertions, 60 deletions
diff --git a/example/ndpiReader.c b/example/ndpiReader.c
index d9e150be7..cb3238a88 100644
--- a/example/ndpiReader.c
+++ b/example/ndpiReader.c
@@ -911,6 +911,7 @@ static void node_print_known_proto_walker(const void *node,
static u_int16_t node_guess_undetected_protocol(u_int16_t thread_id, struct ndpi_flow_info *flow) {
flow->detected_protocol = ndpi_guess_undetected_protocol(ndpi_thread_info[thread_id].workflow->ndpi_struct,
+ NULL,
flow->protocol,
ntohl(flow->src_ip),
ntohs(flow->src_port),
diff --git a/src/include/ndpi_api.h b/src/include/ndpi_api.h
index d010577a5..c7ed7cd17 100644
--- a/src/include/ndpi_api.h
+++ b/src/include/ndpi_api.h
@@ -326,6 +326,7 @@ extern "C" {
* Search and return the protocol guessed that is undetected
*
* @par ndpi_struct = the detection module
+ * @par flow = the flow we're trying to guess, NULL if not available
* @par proto = the l4 protocol number
* @par shost = source address in host byte order
* @par sport = source port number
@@ -335,6 +336,7 @@ extern "C" {
*
*/
ndpi_protocol ndpi_guess_undetected_protocol(struct ndpi_detection_module_struct *ndpi_struct,
+ struct ndpi_flow_struct *flow,
u_int8_t proto,
u_int32_t shost,
u_int16_t sport,
diff --git a/src/include/ndpi_main.h b/src/include/ndpi_main.h
index 3517d45b2..41280fb8e 100644
--- a/src/include/ndpi_main.h
+++ b/src/include/ndpi_main.h
@@ -119,6 +119,7 @@ extern "C" {
u_int16_t ndpi_get_proto_by_name(struct ndpi_detection_module_struct *ndpi_mod, const char *name);
extern u_int16_t ndpi_guess_protocol_id(struct ndpi_detection_module_struct *ndpi_struct,
+ struct ndpi_flow_struct *flow,
u_int8_t proto, u_int16_t sport, u_int16_t dport,
u_int8_t *user_defined_proto);
diff --git a/src/include/ndpi_protocol_ids.h b/src/include/ndpi_protocol_ids.h
index 0d2712d20..aefb0fce2 100644
--- a/src/include/ndpi_protocol_ids.h
+++ b/src/include/ndpi_protocol_ids.h
@@ -73,7 +73,7 @@ typedef enum {
NDPI_PROTOCOL_EDONKEY = 36, /* Tomasz Bujlow <tomasz@skatnet.dk> */
NDPI_PROTOCOL_BITTORRENT = 37,
NDPI_PROTOCOL_SKYPE_CALL_OUT = 38,
- NDPI_PROTOCOL_MUSICALLY = 39,
+ NDPI_PROTOCOL_FREE_39 = 39, /* Free */
NDPI_PROTOCOL_MEMCACHED = 40, /* Memcached - Darryl Sokoloski <darryl@egloo.ca> */
NDPI_PROTOCOL_SMBV23 = 41, /* SMB version 2/3 */
NDPI_PROTOCOL_MINING = 42, /* Bitcoin, Ethereum, ZCash, Monero */
diff --git a/src/include/ndpi_typedefs.h b/src/include/ndpi_typedefs.h
index 51681e60e..4b69c2b7b 100644
--- a/src/include/ndpi_typedefs.h
+++ b/src/include/ndpi_typedefs.h
@@ -826,7 +826,7 @@ typedef enum {
ndpi_pref_dns_dissect_response,
ndpi_pref_direction_detect_disable,
ndpi_pref_disable_metadata_export,
- ndpi_pref_enable_category_substring_match,
+ ndpi_pref_enable_category_substring_match
} ndpi_detection_preference;
/* ntop extensions */
diff --git a/src/lib/ndpi_content_match.c.inc b/src/lib/ndpi_content_match.c.inc
index 71e236d37..4bfdde983 100644
--- a/src/lib/ndpi_content_match.c.inc
+++ b/src/lib/ndpi_content_match.c.inc
@@ -21,7 +21,6 @@
/* ****************************************************** */
static ndpi_network host_protocol_list[] = {
-
/*
SoundCloud
*/
@@ -111,11 +110,14 @@ static ndpi_network host_protocol_list[] = {
WeChat
origin AS132203, AS132591, AS45090
*/
-
{ 0xCBCD93AB /* 203.205.147.171/32 */, 32, NDPI_PROTOCOL_WECHAT },
{ 0xCBCD93AD /* 203.205.147.173/32 */, 32, NDPI_PROTOCOL_WECHAT },
{ 0xCBCD97A2 /* 203.205.151.162/32 */, 32, NDPI_PROTOCOL_WECHAT },
- { 0x67071E25 /* 103.7.30.37/32 */, 32, NDPI_PROTOCOL_WECHAT },
+ { 0x67071E25 /* 103.7.30.37/32 */, 32, NDPI_PROTOCOL_WECHAT },
+ { 0XCBCDB000 /* 203.205.176.0/20 */, 20, NDPI_PROTOCOL_WECHAT },
+ { 0XCBCDC000 /* 203.205.192.0/18 */, 18, NDPI_PROTOCOL_WECHAT },
+
+
/*
OpenDNS, LLC
@@ -8327,10 +8329,7 @@ ndpi_protocol_match host_match[] = {
/* Detected "slack-assets2.s3-us-west-2.amazonaws.com.". Omitted "*amazonaws.com" CDN, but no generic pattern to use on first part */
{ "slack-assets2.s3-", NULL, "slack-assets2\\.s3-", "Slack", NDPI_PROTOCOL_SLACK, NDPI_PROTOCOL_CATEGORY_COLLABORATIVE, NDPI_PROTOCOL_ACCEPTABLE },
- { "zhiliaoapp.com", NULL, "zhiliaoapp" TLD, "Musical.ly", NDPI_PROTOCOL_MUSICALLY, NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK, NDPI_PROTOCOL_FUN },
- { "muscdn.com", NULL, "muscdn" TLD, "Musical.ly", NDPI_PROTOCOL_MUSICALLY, NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK, NDPI_PROTOCOL_FUN },
- { "livelycdn.com", NULL, "livelycdn" TLD, "Musical.ly", NDPI_PROTOCOL_MUSICALLY, NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK, NDPI_PROTOCOL_FUN },
- { "direct.ly", NULL, "direct\\.ly$", "Musical.ly", NDPI_PROTOCOL_MUSICALLY, NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK, NDPI_PROTOCOL_FUN },
+ { "wechat.com", NULL, "wechat\\.com" TLD, "WeChat", NDPI_PROTOCOL_WECHAT, NDPI_PROTOCOL_CATEGORY_SOCIAL_NETWORK, NDPI_PROTOCOL_FUN },
{ "github.com", NULL, "github" TLD, "Github", NDPI_PROTOCOL_GITHUB, NDPI_PROTOCOL_CATEGORY_COLLABORATIVE, NDPI_PROTOCOL_ACCEPTABLE },
{ ".github.com", NULL, "\\.github" TLD, "Github", NDPI_PROTOCOL_GITHUB, NDPI_PROTOCOL_CATEGORY_COLLABORATIVE, NDPI_PROTOCOL_ACCEPTABLE },
diff --git a/src/lib/ndpi_main.c b/src/lib/ndpi_main.c
index 3a6cd84ef..02ad31a5e 100644
--- a/src/lib/ndpi_main.c
+++ b/src/lib/ndpi_main.c
@@ -517,7 +517,6 @@ void ndpi_exclude_protocol(struct ndpi_detection_module_struct *ndpi_struct,
(*(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);
@@ -1205,9 +1204,9 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
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_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_WECHAT,
+ no_master, /* wechat.com */
+ no_master, "WeChat", 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,
@@ -1245,7 +1244,12 @@ static void ndpi_init_protocol_defaults(struct ndpi_detection_module_struct *ndp
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,
+ ndpi_set_proto_defaults(ndpi_mod, NDPI_PROTOCOL_FUN, NDPI_PROTOCOL_FREE_39,
+ 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_39,
no_master,
no_master, "Free", NDPI_PROTOCOL_CATEGORY_CUSTOM_1 /* dummy */,
ndpi_build_default_ports(ports_a, 0, 0, 0, 0, 0) /* TCP */,
@@ -2523,6 +2527,7 @@ static ndpi_default_ports_tree_node_t* ndpi_get_guessed_protocol_id(struct ndpi_
/* ****************************************************** */
u_int16_t ndpi_guess_protocol_id(struct ndpi_detection_module_struct *ndpi_struct,
+ struct ndpi_flow_struct *flow,
u_int8_t proto, u_int16_t sport, u_int16_t dport,
u_int8_t *user_defined_proto) {
@@ -2531,8 +2536,17 @@ u_int16_t ndpi_guess_protocol_id(struct ndpi_detection_module_struct *ndpi_struc
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);
+ u_int16_t guessed_proto = found->proto->protoId;
+
+ /* We need to check if the guessed protocol isn't excluded by nDPI */
+ if(flow
+ && (proto == IPPROTO_UDP)
+ && (NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, guessed_proto)))
+ return(NDPI_PROTOCOL_UNKNOWN);
+ else {
+ *user_defined_proto = found->customUserProto;
+ return(guessed_proto);
+ }
}
} else {
/* No TCP/UDP */
@@ -3956,18 +3970,17 @@ ndpi_protocol ndpi_detection_giveup(struct ndpi_detection_module_struct *ndpi_st
&& (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;
+ 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;
-
+ && ((flow->packet.l4_protocol == IPPROTO_UDP) && NDPI_ISSET(&flow->excluded_protocol_bitmask, guessed_host_protocol_id)))
+ flow->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;
+ // && (guessed_host_protocol_id == NDPI_PROTOCOL_UNKNOWN)
+ && (flow->packet.l4_protocol == IPPROTO_UDP) && NDPI_ISSET(&flow->excluded_protocol_bitmask, guessed_protocol_id))
+ flow->guessed_protocol_id = guessed_protocol_id = NDPI_PROTOCOL_UNKNOWN;
if((guessed_protocol_id != NDPI_PROTOCOL_UNKNOWN)
|| (guessed_host_protocol_id != NDPI_PROTOCOL_UNKNOWN)) {
@@ -4394,7 +4407,7 @@ ndpi_protocol ndpi_detection_process_packet(struct ndpi_detection_module_struct
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_protocol_id = (int16_t) ndpi_guess_protocol_id(ndpi_struct, flow, 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)) {
@@ -5356,6 +5369,7 @@ u_int16_t ndpi_get_lower_proto(ndpi_protocol proto) {
/* ****************************************************** */
ndpi_protocol ndpi_guess_undetected_protocol(struct ndpi_detection_module_struct *ndpi_struct,
+ struct ndpi_flow_struct *flow,
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) {
@@ -5365,30 +5379,37 @@ ndpi_protocol ndpi_guess_undetected_protocol(struct ndpi_detection_module_struct
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);
+ 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;
-
- ret.category = ndpi_get_proto_category(ndpi_struct, ret);
- return(ret);
+ if(flow && (proto == IPPROTO_UDP) && NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, rc))
+ ;
+ else {
+ ret.app_protocol = rc,
+ ret.master_protocol = ndpi_guess_protocol_id(ndpi_struct, NULL, proto, sport,
+ dport, &user_defined_proto);
+
+ if(ret.app_protocol == ret.master_protocol)
+ ret.master_protocol = NDPI_PROTOCOL_UNKNOWN;
+
+ ret.category = ndpi_get_proto_category(ndpi_struct, ret);
+ return(ret);
+ }
}
- rc = ndpi_guess_protocol_id(ndpi_struct, proto, sport, dport, &user_defined_proto);
+ rc = ndpi_guess_protocol_id(ndpi_struct, NULL, proto, sport, dport, &user_defined_proto);
if(rc != NDPI_PROTOCOL_UNKNOWN) {
- ret.app_protocol = rc;
-
- if(rc == NDPI_PROTOCOL_SSL)
- goto check_guessed_skype;
+ if(flow && (proto == IPPROTO_UDP) && NDPI_COMPARE_PROTOCOL_TO_BITMASK(flow->excluded_protocol_bitmask, rc))
+ ;
else {
- ret.category = ndpi_get_proto_category(ndpi_struct, ret);
- return(ret);
+ ret.app_protocol = rc;
+
+ if(rc == NDPI_PROTOCOL_SSL)
+ goto check_guessed_skype;
+ else {
+ ret.category = ndpi_get_proto_category(ndpi_struct, ret);
+ return(ret);
+ }
}
}
@@ -5402,10 +5423,10 @@ ndpi_protocol ndpi_guess_undetected_protocol(struct ndpi_detection_module_struct
ret.app_protocol = NDPI_PROTOCOL_SKYPE;
}
} else
- ret.app_protocol = ndpi_guess_protocol_id(ndpi_struct, proto, sport,
+ ret.app_protocol = ndpi_guess_protocol_id(ndpi_struct, NULL, proto, sport,
dport, &user_defined_proto);
- ret.category = ndpi_get_proto_category(ndpi_struct, ret);
+ ret.category = ndpi_get_proto_category(ndpi_struct, ret);
return(ret);
}
diff --git a/src/lib/protocols/dropbox.c b/src/lib/protocols/dropbox.c
index d981c76b3..39bb96ff2 100644
--- a/src/lib/protocols/dropbox.c
+++ b/src/lib/protocols/dropbox.c
@@ -48,14 +48,24 @@ static void ndpi_check_dropbox(struct ndpi_detection_module_struct *ndpi_struct,
if(packet->udp != NULL) {
u_int16_t dropbox_port = htons(DB_LSP_PORT);
- if((packet->udp->source == dropbox_port)
- && (packet->udp->dest == dropbox_port)) {
- if(payload_len > 2) {
- if(strstr((const char *)packet->payload, "\"host_int\"") != NULL) {
-
- NDPI_LOG_INFO(ndpi_struct, "found dropbox\n");
- ndpi_int_dropbox_add_connection(ndpi_struct, flow, 0);
- return;
+ if(packet->udp->dest == dropbox_port) {
+ if(packet->udp->source == dropbox_port) {
+ if(payload_len > 10) {
+ if(ndpi_strnstr((const char *)packet->payload, "\"host_int\"", payload_len) != NULL) {
+
+ NDPI_LOG_INFO(ndpi_struct, "found dropbox\n");
+ ndpi_int_dropbox_add_connection(ndpi_struct, flow, 0);
+ return;
+ }
+ }
+ } else {
+ if(payload_len > 10) {
+ if(ndpi_strnstr((const char *)packet->payload, "Bus17Cmd", payload_len) != NULL) {
+
+ NDPI_LOG_INFO(ndpi_struct, "found dropbox\n");
+ ndpi_int_dropbox_add_connection(ndpi_struct, flow, 0);
+ return;
+ }
}
}
}
diff --git a/src/lib/protocols/eaq.c b/src/lib/protocols/eaq.c
index 2082b5263..8768cac6f 100644
--- a/src/lib/protocols/eaq.c
+++ b/src/lib/protocols/eaq.c
@@ -53,12 +53,15 @@ void ndpi_search_eaq(struct ndpi_detection_module_struct *ndpi_struct, struct nd
if(packet->udp != NULL) {
u_int32_t seq = (packet->payload[0] * 1000) + (packet->payload[1] * 100) + (packet->payload[2] * 10) + packet->payload[3];
-
+
if(flow->l4.udp.eaq_pkt_id == 0)
flow->l4.udp.eaq_sequence = seq;
else {
if( (flow->l4.udp.eaq_sequence != seq) &&
- ((flow->l4.udp.eaq_sequence+1) != seq)) break;
+ ((flow->l4.udp.eaq_sequence+1) != seq))
+ break;
+ else
+ flow->l4.udp.eaq_sequence = seq;
}
if(++flow->l4.udp.eaq_pkt_id == 4) {
@@ -66,7 +69,8 @@ void ndpi_search_eaq(struct ndpi_detection_module_struct *ndpi_struct, struct nd
NDPI_LOG_INFO(ndpi_struct, "found eaq\n");
ndpi_int_eaq_add_connection(ndpi_struct, flow);
return;
- }
+ } else
+ return;
}
} while(0);
diff --git a/src/lib/protocols/skype.c b/src/lib/protocols/skype.c
index e544724a5..8a4eafca4 100644
--- a/src/lib/protocols/skype.c
+++ b/src/lib/protocols/skype.c
@@ -31,13 +31,16 @@ static void ndpi_skype_report_protocol(struct ndpi_detection_module_struct *ndpi
NDPI_LOG_INFO(ndpi_struct, "found skype\n");
ndpi_set_detected_protocol(ndpi_struct, flow, proto, NDPI_PROTOCOL_SKYPE);
}
-
+
+static int is_port(u_int16_t a, u_int16_t b, u_int16_t c) {
+ return(((a == c) || (b == c)) ? 1 : 0);
+}
+
static void ndpi_check_skype(struct ndpi_detection_module_struct *ndpi_struct, struct ndpi_flow_struct *flow) {
struct ndpi_packet_struct *packet = &flow->packet;
// const u_int8_t *packet_payload = packet->payload;
u_int32_t payload_len = packet->payload_packet_len;
-
if(flow->host_server_name[0] != '\0')
return;
@@ -46,10 +49,15 @@ static void ndpi_check_skype(struct ndpi_detection_module_struct *ndpi_struct, s
flow->l4.udp.skype_packet_id++;
if(flow->l4.udp.skype_packet_id < 5) {
+ u_int16_t sport = ntohs(packet->udp->source);
u_int16_t dport = ntohs(packet->udp->dest);
/* skype-to-skype */
- if(dport != 1119) /* It can be confused with battle.net */ {
+ if(is_port(sport, dport, 1119) /* It can be confused with battle.net */
+ || is_port(sport, dport, 80) /* No HTTP-like protocols UDP/80 */
+ ) {
+ ;
+ } else {
if(((payload_len == 3) && ((packet->payload[2] & 0x0F)== 0x0d)) ||
((payload_len >= 16)
&& (packet->payload[0] != 0x30) /* Avoid invalid SNMP detection */
@@ -57,11 +65,12 @@ static void ndpi_check_skype(struct ndpi_detection_module_struct *ndpi_struct, s
ndpi_skype_report_protocol(ndpi_struct, flow);
}
}
+
return;
}
+
NDPI_EXCLUDE_PROTO(ndpi_struct, flow);
return;
-
// TCP check
} else if(packet->tcp != NULL) {
flow->l4.tcp.skype_packet_id++;
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