cvss.c File Reference

Detailed Description

Interface to Common Vulnerability Scoring System Version 2.

See details at http://nvd.nist.gov/cvss.cfm

#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "public/cvss_score.h"
#include "cvss_priv.h"
#include "common/elements.h"

Data Structures
struct	cvss_keytab_entry
struct	cvss_valtab_entry

Macros
#define	CVSS_SUPPORTED   "2.0"
#define	NS_VULN_STR   BAD_CAST "vuln"
#define	NS_CVSS_STR   BAD_CAST "cvss"
#define	NS_VULN_URI   BAD_CAST "http://scap.nist.gov/schema/vulnerability/0.4"
#define	NS_CVSS_URI   BAD_CAST "http://scap.nist.gov/schema/cvss-v2/0.2"
#define	NAN_INIT   NAN
#define	CVSS_W(key)   (cvss_impact_entry(impact, CVSS_KEY_##key)->weight)
#define	CVSS_METRIC_ACCESSORS_GEN(cat, key, type)
#define	CVSS_METRIC_ACCESSORS_CIA(cat, key)
#define	CVSS_METRIC_ACCESSORS(cat, key)   CVSS_METRIC_ACCESSORS_GEN(cat, key, key)

Typedefs
typedef float(*	cvss_score_func )(const struct cvss_impact *)

Functions
const char *	cvss_model_supported (void)
	Get supported version of CVSS XML.
struct cvss_impact *	cvss_impact_new (void)
struct cvss_impact *	cvss_impact_new_from_vector (const char *cvss_vector)
struct cvss_impact *	cvss_impact_new_from_xml (xmlTextReaderPtr reader)
struct cvss_impact *	cvss_impact_clone (const struct cvss_impact *imp)
bool	cvss_impact_export (const struct cvss_impact *imp, xmlTextWriterPtr writer)
bool	cvss_metrics_is_valid (const struct cvss_metrics *metrics)
char *	cvss_impact_to_vector (const struct cvss_impact *impact)
void	cvss_impact_free (struct cvss_impact *impact)
bool	cvss_impact_set_metrics (struct cvss_impact *impact, struct cvss_metrics *metrics)
float	cvss_round (float x)
	Round x to one decimal place as described in CVSS standard.
float	cvss_impact_base_exploitability_subscore (const struct cvss_impact *impact)
float	cvss_impact_base_impact_subscore (const struct cvss_impact *impact)
float	cvss_impact_base_score (const struct cvss_impact *impact)
float	cvss_impact_temporal_multiplier (const struct cvss_impact *impact)
float	cvss_impact_temporal_score (const struct cvss_impact *impact)
float	cvss_impact_base_adjusted_impact_subscore (const struct cvss_impact *impact)
float	cvss_impact_adjusted_base_score (const struct cvss_impact *impact)
float	cvss_impact_adjusted_temporal_score (const struct cvss_impact *impact)
float	cvss_impact_environmental_score (const struct cvss_impact *impact)
void	cvss_impact_describe (const struct cvss_impact *impact, FILE *f)
struct cvss_metrics *	cvss_metrics_new (enum cvss_category category)
struct cvss_metrics *	cvss_metrics_new_from_xml (xmlTextReaderPtr reader)
struct cvss_metrics *	cvss_metrics_clone (const struct cvss_metrics *met)
bool	cvss_metrics_export (const struct cvss_metrics *m, xmlTextWriterPtr writer)
void	cvss_metrics_free (struct cvss_metrics *metrics)

Macro Definition Documentation

#define CVSS_METRIC_ACCESSORS_CIA	(		cat,
			key
	)

Value:

CVSS_METRIC_ACCESSORS_GEN(cat, confidentiality_##key, cia_##key) \
    CVSS_METRIC_ACCESSORS_GEN(cat, integrity_##key, cia_##key) CVSS_METRIC_ACCESSORS_GEN(cat, availability_##key, cia_##key)

#define CVSS_METRIC_ACCESSORS_GEN	(		cat,
			key,
			type
	)

Value:

enum cvss_##type cvss_metrics_get_##key(const struct cvss_metrics* metrics) \
    { if (metrics->category != CVSS_##cat) return 0; return metrics->metrics.cat[CVSS_KEY_IDX(CVSS_KEY_##key)]; } \
    bool cvss_metrics_set_##key(struct cvss_metrics* metrics, enum cvss_##type newval) \
    { if (metrics->category != CVSS_##cat) return false; metrics->metrics.cat[CVSS_KEY_IDX(CVSS_KEY_##key)] = newval; return true; }