diff options
Diffstat (limited to 'src/osfp_score_db.c')
| -rw-r--r-- | src/osfp_score_db.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/osfp_score_db.c b/src/osfp_score_db.c index 00a15a3..3e3f97c 100644 --- a/src/osfp_score_db.c +++ b/src/osfp_score_db.c @@ -1,3 +1,8 @@ +#include <stdio.h> +#include <sys/param.h> + +#include "cJSON.h" + #include "osfp_common.h" #include "osfp.h" @@ -301,7 +306,7 @@ int osfp_score_db_score(struct osfp_score_db *score_db, unsigned int flags, stru continue; } - coefficient = OSFP_PERCENTILE / PERFECT_SCORE_EXPECTED_RATE * score_db->field_weight[i] / total_weight; + coefficient = fdb->coefficient; for (j = 0; j < OSFP_OS_CLASS_MAX; j++) { os_entry_count = score_db->os_entry_count[j]; @@ -510,10 +515,10 @@ struct osfp_score_db *osfp_score_db_create(void) continue; } - score_db->field_weight[i] = osfp_fingerprint_get_field_importance(i); + db->weight = osfp_fingerprint_get_field_importance(i); // tcp options ordered and tcp options overlap if (i != OSFP_FIELD_TCP_OPTIONS_ORDERED) { - score_db->total_weight += score_db->field_weight[i]; + score_db->total_weight += db->weight; } db->type = osfp_fingerprint_get_field_type(i); @@ -542,6 +547,11 @@ struct osfp_score_db *osfp_score_db_create(void) } } + for (i = 0; i < OSFP_FIELD_MAX; i++) { + db = &score_db->field_score_dbs[i]; + db->coefficient = (OSFP_PERCENTILE / PERFECT_SCORE_EXPECTED_RATE) * ((float)db->weight / (float)score_db->total_weight); + } + return score_db; exit: if (score_db) { |