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-rw-r--r--src/osfp.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/src/osfp.c b/src/osfp.c
deleted file mode 100644
index e822436..0000000
--- a/src/osfp.c
+++ /dev/null
@@ -1,318 +0,0 @@
-#include "osfp_common.h"
-
-#include "osfp.h"
-#include "osfp_fingerprint.h"
-#include "osfp_score_db.h"
-#include "osfp_log.h"
-
-#define OSFP_DEFAULT_RESULT_BUFLEN_MAX 512
-#define OSFP_LOWEST_SCORE_LIMIT 20
-
-static struct osfp_result *osfp_result_build(struct osfp_os_class_score *os_class_score)
-{
- int i;
- unsigned int tmp_score;
- unsigned int sum_score;
- unsigned int likely_score;
- enum osfp_os_class_id likely_os_class;
- struct osfp_result *result;
-
- result = calloc(1, sizeof(struct osfp_result));
- if (result == NULL) {
- goto exit;
- }
-
- likely_score = 0;
- likely_os_class = OSFP_OS_CLASS_OTHERS;
- sum_score = 0;
-
- for (i = 0; i < OSFP_OS_CLASS_MAX; i++) {
- tmp_score = os_class_score->scores[i];
-
- if (likely_score < tmp_score) {
- likely_score = tmp_score;
- likely_os_class = i;
- }
- result->details[i].score = tmp_score;
- sum_score += tmp_score;
- }
-
- if (sum_score) {
- for (i = 0; i < OSFP_OS_CLASS_MAX; i++) {
- result->details[i].possibility = OSFP_PERCENTILE * result->details[i].score / sum_score;
- }
- }
-
- if (likely_score < OSFP_LOWEST_SCORE_LIMIT) {
- likely_os_class = OSFP_OS_CLASS_OTHERS;
- } else {
- for (i = 0; i < OSFP_OS_CLASS_MAX; i++) {
- if (likely_os_class == i) {
- continue;
- }
- if (likely_score == os_class_score->scores[i]) {
- if (likely_os_class == OSFP_OS_CLASS_LINUX && i == OSFP_OS_CLASS_ANDROID) {
- continue;
- } else if (likely_os_class == OSFP_OS_CLASS_MAC_OS && i == OSFP_OS_CLASS_IOS) {
- continue;
- } else {
- likely_os_class = OSFP_OS_CLASS_UNKNOWN;
- break;
- }
- }
- }
- }
-
- result->likely_os_class = likely_os_class;
-
- return result;
-exit:
- return NULL;
-}
-
-const char *osfp_result_os_name_get(struct osfp_result *result)
-{
- enum osfp_os_class_id os_class;
-
- if (result == NULL) {
- return NULL;
- }
-
- os_class = result->likely_os_class;
- if (os_class < 0 || os_class >= OSFP_OS_CLASS_MAX) {
- return NULL;
- }
-
- return osfp_os_class_id_to_name(os_class);
-}
-
-char *osfp_result_score_detail_export(struct osfp_result *result)
-{
- int i;
- char *result_str = NULL;
- cJSON *root = NULL;
- cJSON *array;
- cJSON *os_score;
-
- osfp_profile_cycle(c1);
- osfp_profile_cycle(c2);
- osfp_profile_get_cycle(c1);
-
- if (result == NULL) {
- goto exit;
- }
-
- if (result->json_str != NULL) {
- result_str = result->json_str;
- goto exit;
- }
-
- root = cJSON_CreateObject();
- if (root == NULL) {
- goto exit;
- }
-
- os_score = cJSON_AddObjectToObject(root, "likely");
- if (os_score) {
- cJSON_AddStringToObject(os_score, "name", osfp_os_class_id_to_name(result->likely_os_class));
- cJSON_AddNumberToObject(os_score, "score", result->details[result->likely_os_class].score);
- //cJSON_AddNumberToObject(os_score, "possibility", result->details[result->likely_os_class].possibility);
- }
-
- array = cJSON_AddArrayToObject(root, "details");
- if (array) {
- for (i = OSFP_OS_CLASS_WINDOWS; i < OSFP_OS_CLASS_OTHERS; i++) {
- os_score = cJSON_CreateObject();
- if (os_score) {
- cJSON_AddStringToObject(os_score, "name", osfp_os_class_id_to_name(i));
- cJSON_AddNumberToObject(os_score, "score", result->details[i].score);
- //cJSON_AddNumberToObject(os_score, "possibility", result->details[i].possibility);
- cJSON_AddItemToArray(array, os_score);
- }
- }
- }
-
- result_str = cJSON_Print(root);
- if (result_str == NULL) {
- goto exit;
- }
-
- result->json_str = result_str;
-
-exit:
- if (root) {
- cJSON_Delete(root);
- }
- if (result_str) {
- osfp_profile_get_cycle(c2);
- osfp_profile_counter_update(&osfp_profile_result_export, c2 - c1);
- }
- return result_str;
-}
-
-void osfp_result_free(struct osfp_result *result)
-{
- if (result) {
- if (result->json_str) {
- free(result->json_str);
- }
- free(result);
- }
-}
-
-struct osfp_result *osfp_ipv4_identify(struct osfp_db *db, struct iphdr* l3_hdr, struct tcphdr *l4_hdr, size_t l4_hdr_len)
-{
- int ret = OSFP_EINVAL;
- struct osfp_fingerprint fp;
- struct osfp_os_class_score os_class_score;
- struct osfp_result *result;
-
- osfp_profile_cycle(c1);
- osfp_profile_cycle(c2);
-
- if (db == NULL || l3_hdr == NULL || l4_hdr == NULL || l4_hdr == 0) {
- goto exit;
- }
-
- osfp_profile_get_cycle(c1);
- ret = osfp_fingerprinting((unsigned char *)l3_hdr, (unsigned char *)l4_hdr, (unsigned int)l4_hdr_len, &fp, 4);
- osfp_profile_get_cycle(c2);
- osfp_profile_counter_update(&osfp_profile_fingerprinting, c2 - c1);
- if (ret != 0) {
- goto exit;
- }
-
- osfp_profile_get_cycle(c1);
- ret = osfp_score_db_score(db->score_db, 0, &fp, &os_class_score);
- osfp_profile_get_cycle(c2);
- osfp_profile_counter_update(&osfp_profile_score, c2 - c1);
- if (ret != 0) {
- goto exit;
- }
-
- osfp_profile_get_cycle(c1);
- result = osfp_result_build(&os_class_score);
- osfp_profile_get_cycle(c2);
- osfp_profile_counter_update(&osfp_profile_result_build, c2 - c1);
- if (result == NULL) {
- goto exit;
- }
-
- return result;
-exit:
- return NULL;
-}
-
-struct osfp_result *osfp_ipv6_identify(struct osfp_db *db, struct ip6_hdr* l3_hdr, struct tcphdr *l4_hdr, size_t l4_hdr_len)
-{
- int ret = OSFP_EINVAL;
- struct osfp_fingerprint fp;
- struct osfp_os_class_score os_class_score;
- struct osfp_result *result;
-
- if (db == NULL || l3_hdr == NULL || l4_hdr == NULL || l4_hdr_len == 0) {
- goto exit;
- }
-
- ret = osfp_fingerprinting((unsigned char *)l3_hdr, (unsigned char *)l4_hdr, (unsigned int)l4_hdr_len, &fp, 6);
- if (ret != 0) {
- goto exit;
- }
-
- ret = osfp_score_db_score(db->score_db, 0, &fp, &os_class_score);
- if (ret != 0) {
- goto exit;
- }
-
- result = osfp_result_build(&os_class_score);
- if (result == NULL) {
- goto exit;
- }
-
- return result;
-exit:
- return NULL;
-}
-
-struct osfp_result *osfp_json_identify(struct osfp_db *db, const char *json_str)
-{
- int ret = OSFP_EINVAL;
- struct osfp_fingerprint fp;
- struct osfp_os_class_score os_class_score;
- struct osfp_result *result;
-
- if (db == NULL) {
- goto exit;
- }
-
- ret = osfp_fingerprint_from_json(&fp, (char *)json_str);
- if (ret != 0) {
- goto exit;
- }
-
- ret = osfp_score_db_score(db->score_db, 0, &fp, &os_class_score);
- if (ret != 0) {
- goto exit;
- }
-
- result = osfp_result_build(&os_class_score);
- if (result == NULL) {
- goto exit;
- }
-
- return result;
-exit:
- return NULL;
-}
-
-struct osfp_db *osfp_db_new(const char *db_json_file)
-{
- int ret;
- struct osfp_db *db;
-
- db = calloc(1, sizeof(struct osfp_db));
- if (db == NULL) {
- goto exit;
- }
-
- if (db_json_file != NULL) {
- if (0 != access(db_json_file, R_OK)) {
- goto exit;
- }
-
- db->db_json_path = strdup((const char*)db_json_file);
- if (db->db_json_path == NULL) {
- goto exit;
- }
- }
-
- db->score_db = (void *)osfp_score_db_create();
- if (db->score_db == NULL) {
- goto exit;
- }
-
- ret = osfp_score_db_load((struct osfp_score_db *)db->score_db, db->db_json_path);
- if (ret != 0) {
- goto exit;
- }
-
- return db;
-exit:
- if (db) {
- osfp_db_free(db);
- }
- return NULL;
-}
-
-void osfp_db_free(struct osfp_db *db)
-{
- if (db) {
- if (db->db_json_path) {
- free(db->db_json_path);
- }
- if (db->score_db) {
- osfp_score_db_destroy(db->score_db);
- }
- free(db);
- }
-}
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