plugs_req.h File Reference

plugs_req.c header. More...

#include <gvm/util/kb.h>

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Functions
char *	requirements_plugin (kb_t, nvti_t *)
	Determine if the plugin requirements are met.
int	mandatory_requirements_met (kb_t, nvti_t *)
	Check whether mandatory requirements for plugin are met.

Detailed Description

plugs_req.c header.

Definition in file plugs_req.h.

Function Documentation

mandatory_requirements_met()

int mandatory_requirements_met	(	kb_t	kb,
		nvti_t *	nvti )

Check whether mandatory requirements for plugin are met.

Parameters

kb	The knowledge base with all keys.
plugin	The scheduler plugin.

Returns

1 if all mandatory requirements for the plugin are met. 0 if it is not the case.

Definition at line 234 of file plugs_req.c.

{
  int ret;
 
  ret = check_mandatory_keys (kb, nvti_mandatory_keys (nvti));
 
  if (ret)
    return 0;
  return 1;
}

References check_mandatory_keys().

Referenced by launch_plugin().

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requirements_plugin()

char * requirements_plugin	(	kb_t	kb,
		nvti_t *	nvti )

Determine if the plugin requirements are met.

Returns

Returns NULL is everything is ok, else an error message.

Definition at line 251 of file plugs_req.c.

{
  static char error[64];
  char *errkey = NULL, *keys, *tcp, *udp;
  const char *opti = prefs_get ("optimization_level");
 
  /*
   * Check whether the good ports are open
   */
  error[sizeof (error) - 1] = '\0';
  tcp = nvti_required_ports (nvti);
  if (tcp && *tcp && (get_closed_ports (kb, tcp, "tcp")) == 0)
    {
      strncpy (error, "none of the required tcp ports are open",
               sizeof (error) - 1);
      return error;
    }
 
  udp = nvti_required_udp_ports (nvti);
  if (udp && *udp && (get_closed_ports (kb, udp, "udp")) == 0)
    {
      strncpy (error, "none of the required udp ports are open",
               sizeof (error) - 1);
      return error;
    }
 
  if (opti != NULL && (strcmp (opti, "open_ports") == 0 || atoi (opti) == 1))
    return NULL;
 
  /*
   * Check whether a key we wanted is missing
   */
  keys = nvti_required_keys (nvti);
  if (kb_missing_keyname_of_namelist (kb, keys, &errkey))
    {
      snprintf (error, sizeof (error), "because the key %s is missing", errkey);
      g_free (errkey);
      return error;
    }
 
  if (opti != NULL && (strcmp (opti, "required_keys") == 0 || atoi (opti) == 2))
    return NULL;
 
  /*
   * Check whether a key we do not want is present
   */
  keys = nvti_excluded_keys (nvti);
  if (kb_present_keyname_of_namelist (kb, keys, &errkey))
    {
      snprintf (error, sizeof (error), "because the key %s is present", errkey);
      g_free (errkey);
      return error;
    }
  return NULL;
}

References get_closed_ports(), kb_missing_keyname_of_namelist(), and kb_present_keyname_of_namelist().

Referenced by launch_plugin().

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