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加maat扫描日志

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This commit is contained in:
崔一鸣
2019-06-04 15:38:27 +08:00
parent f89c0cf902
commit 55cd850403
5 changed files with 90 additions and 18 deletions
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7
conf/kni.conf
View File

@@ -5,7 +5,8 @@ tfe_count = 1
local_eth = enp8s0
[maat]
readconf_mode = 2
#readconf_mode: 0 = iris, 1 = json, 2 = redis
readconf_mode = 1
tableinfo_path = ./conf/kni/maat_tableinfo.conf
maatjson_path = ./conf/kni/maat_test.json
redis_ip = 192.168.10.120
@@ -14,6 +15,8 @@ redis_index = 4
tablename_intercept_ip = PXY_INTERCEPT_IP
tablename_intercept_domain = PXY_INTERCEPT_DOMAIN
compile_alias = COMPILE_ALIAS
#default_action: 0x80 = bypass, 0x02 = intercept
default_action = 128
[marsio]
appsym = knifw
@@ -38,7 +41,7 @@ stat_path = ./fs2_kni.status
[send_logger]
switch = 1
kafka_topic = SESSION-RECORD-LOG
kafka_brokerlist = 192.168.10.121:9092,192.168.10.122:9092,192.168.10.123:9092
kafka_brokerlist = 192.168.10.119:9092,192.168.10.122:9092,192.168.10.123:9092
[kafka]
queue.buffering.max.messages = 1000000

2
conf/maat/maat_test.json
View File

@@ -48,7 +48,7 @@
"table_type": "ip",
"table_content": {
"addr_type": "ipv4",
"src_ip": "192.168.11.135",
"src_ip": "192.168.50.156",
"mask_src_ip": "255.255.255.255",
"src_port": "0",
"mask_src_port": "65535",

15
entry/include/kni_maat.h
View File

@@ -5,6 +5,16 @@
#define KNI_MAAT_RULE_NUM_MAX 8
struct kni_maat_handle;
/* action
0x00: none
0x01: monitor
0x02: intercept
0x10: reject
0x30: Manipulate
0x60: steer
0x80: bypass
*/
enum kni_action{
KNI_ACTION_NONE = 0x00,
KNI_ACTION_INTERCEPT = 0x02,
@@ -13,5 +23,6 @@ enum kni_action{
struct kni_maat_handle* kni_maat_init(const char* profile, void *logger);
void kni_maat_destroy(struct kni_maat_handle *handle);
int kni_maat_scan_ip(struct kni_maat_handle* handle, struct ipaddr *addr, int thread_seq, int *policy_id);
int kni_maat_scan_domain(struct kni_maat_handle* handle, char *domain, int domain_len, int thread_seq, int *policy_id);
int kni_maat_scan_ip(struct kni_maat_handle* handle, struct ipaddr *addr, int thread_seq, int *policy_id, int *maat_hit);
int kni_maat_scan_domain(struct kni_maat_handle* handle, char *domain, int domain_len, int thread_seq, int *policy_id, int *maat_hit);
int kni_maat_action_trans(int action, char *action_str);

16
entry/src/kni_entry.cpp
View File

@@ -66,6 +66,7 @@ struct http_project{
struct pme_info{
int protocol;
int policy_id;
int maat_hit;
int action;
int service;
struct kni_tcpopt_info *client_tcpopt;
@@ -509,14 +510,14 @@ static char pending_opstate(const struct streaminfo *stream, struct pme_info *pm
return APP_STATE_FAWPKT | APP_STATE_GIVEME;
}
static int get_action(struct ipaddr *addr, char *domain, int domain_len, int thread_seq, int *policy_id){
static int get_action(struct ipaddr *addr, char *domain, int domain_len, int thread_seq, int *policy_id, int *maat_hit){
//return KNI_ACTION_INTERCEPT;
int action = kni_maat_scan_ip(g_kni_handle->maat_handle, addr, thread_seq, policy_id);
int ret = kni_maat_scan_ip(g_kni_handle->maat_handle, addr, thread_seq, policy_id, maat_hit);
if(action == KNI_ACTION_BYPASS){
return action;
}
if(domain_len != 0){
action = kni_maat_scan_domain(g_kni_handle->maat_handle, domain, domain_len, thread_seq, policy_id);
action = kni_maat_scan_domain(g_kni_handle->maat_handle, domain, domain_len, thread_seq, policy_id, maat_hit);
}
return action;
}
@@ -592,12 +593,15 @@ static char data_opstate(const struct streaminfo *stream, struct pme_info *pmein
memcpy(pmeinfo->host, result->domain, result->domain_len);
FS_operate(g_kni_fs_handle->handle, g_kni_fs_handle->fields[KNI_FIELD_HTTP_STM], 0, FS_OP_ADD, 1);
}
pmeinfo->action = get_action((struct ipaddr*)(&stream->addr), result->domain, result->domain_len, thread_seq, &(pmeinfo->policy_id));
pmeinfo->action = get_action((struct ipaddr*)(&stream->addr), result->domain, result->domain_len,
thread_seq, &(pmeinfo->policy_id), &(pmeinfo->maat_hit));
//输出maat拦截日志
char domain_str[KNI_DOMAIN_MAX] = "";
memcpy(domain_str, result->domain, result->domain_len);
KNI_LOG_DEBUG(logger, "get_action: %s, %s, policy_id = %d, action = %s",
stream_addr, domain_str, pmeinfo->policy_id, pmeinfo->action == KNI_ACTION_BYPASS ? "bypass" : "intercept");
char action_str[KNI_SYMBOL_MAX];
kni_maat_action_trans(pmeinfo->action, action_str);
KNI_LOG_DEBUG(logger, "get_action: %s, %s, policy_id = %d, action = %d(%s), maat_hit = %d",
stream_addr, domain_str, pmeinfo->policy_id, pmeinfo->action, action_str, pmeinfo->maat_hit);
FREE(&result);
//TODO: 这块比较奇怪, 收到client hello, 但是没有syn/ack包, 直接bypass了
if(pmeinfo->client_tcpopt == NULL || pmeinfo->server_tcpopt == NULL){

64
entry/src/kni_maat.cpp
View File

@@ -5,11 +5,11 @@ extern int g_iThreadNum;
/* 关于没有命中配置情况下的默认配置
1. g_maat_default_action = KNI_ACTION_INTERCEPT， policy_id = 0
1. g_maat_default_action: 读配置文件, policy_id = 0
2. 如果maat的编译配置表中有policy_id = 0的配置，则将 g_maat_default_action设为对应的action, policy_id = 0
*/
int g_maat_default_action = KNI_ACTION_INTERCEPT;
int g_maat_default_action;
struct kni_maat_handle{
Maat_feather_t feather;
@@ -89,8 +89,14 @@ struct kni_maat_handle* kni_maat_init(const char* profile, void *logger){
KNI_LOG_ERROR(logger, "MESA_prof_load: compile_alias not set, profile is %s, section is %s", profile, section);
goto error_out;
}
ret = MESA_load_profile_int_nodef(profile, section, "default_action", &g_maat_default_action);
if(ret < 0){
KNI_LOG_ERROR(logger, "MESA_prof_load: default_action not set, profile is %s, section is %s", profile, section);
goto error_out;
}
KNI_LOG_INFO(logger, "MESA_prof_load, [%s]:\n readconf_mode: %d\n tableinfo_path: %s\n tablename_intercept_ip: %s\n tablename_intercept_domain: %s\n"
"compile_alias: %s\n", section, readconf_mode, tableinfo_path, tablename_intercept_ip, tablename_intercept_domain, compile_alias);
"compile_alias: %s\n default_action: %d", section, readconf_mode, tableinfo_path, tablename_intercept_ip,
tablename_intercept_domain, compile_alias, g_maat_default_action);
feather = Maat_feather(g_iThreadNum, tableinfo_path, logger);
handle = ALLOC(struct kni_maat_handle, 1);
handle->feather = feather;
@@ -184,7 +190,7 @@ static int maat_process_scan_result(struct kni_maat_handle *handle, int num, str
//TODO: Maat_rule_get_ex_new_index compile_ex_param_new: config_id = 0, 取action即为全局变量, 一旦配置更新就回调, tableinfo怎么写，回调表， 编译配置表
int kni_maat_scan_ip(struct kni_maat_handle *handle, struct ipaddr *addr, int thread_seq, int *policy_id){
int kni_maat_scan_ip(struct kni_maat_handle *handle, struct ipaddr *addr, int thread_seq, int *policy_id, int *maat_hit){
//printf("default action is %d\n", g_maat_default_action);
void *logger = handle->logger;
struct Maat_rule_t result[KNI_MAAT_RULE_NUM_MAX];
@@ -195,6 +201,10 @@ int kni_maat_scan_ip(struct kni_maat_handle *handle, struct ipaddr *addr, int th
KNI_LOG_ERROR(logger, "Failed at Maat_scan_proto_addr, ret is %d", ret);
return g_maat_default_action;
}
if(ret == 0){
return g_maat_default_action;
}
*maat_hit = 1;
int action = maat_process_scan_result(handle, ret, result, policy_id);
/*for debug
@@ -206,7 +216,7 @@ int kni_maat_scan_ip(struct kni_maat_handle *handle, struct ipaddr *addr, int th
return action;
}
int kni_maat_scan_domain(struct kni_maat_handle* handle, char *domain, int domain_len, int thread_seq, int *policy_id){
int kni_maat_scan_domain(struct kni_maat_handle* handle, char *domain, int domain_len, int thread_seq, int *policy_id, int *maat_hit){
void *logger = handle->logger;
struct Maat_rule_t result[KNI_MAAT_RULE_NUM_MAX];
//必须要初始化为NULL, 不懂为什么
@@ -217,6 +227,10 @@ int kni_maat_scan_domain(struct kni_maat_handle* handle, char *domain, int domai
KNI_LOG_ERROR(logger, "Failed at Maat_full_scan_string, ret is %d", ret);
return g_maat_default_action;
}
if(ret == 0){
return g_maat_default_action;
}
*maat_hit = 1;
int action = maat_process_scan_result(handle, ret, result, policy_id);
//for debug
@@ -229,3 +243,43 @@ int kni_maat_scan_domain(struct kni_maat_handle* handle, char *domain, int domai
}
/* action
0x00: none
0x01: monitor
0x02: intercept
0x10: reject
0x30: Manipulate
0x60: steer
0x80: bypass
*/
int kni_maat_action_trans(int action, char *action_str){
switch(action){
case 0x00:
strcpy(action_str, "none");
break;
case 0x01:
strcpy(action_str, "monitor");
break;
case 0x02:
strcpy(action_str, "intercept");
break;
case 0x10:
strcpy(action_str, "reject");
break;
case 0x30:
strcpy(action_str, "manipulate");
break;
case 0x60:
strcpy(action_str, "steer");
break;
case 0x80:
strcpy(action_str, "bypass");
break;
default:
strcpy(action_str, "unknown");
break;
}
return 0;
}