table_driven_lsc.c File Reference

#include "table_driven_lsc.h"
#include <gvm/util/mqtt.h>
#include <gvm/util/uuidutils.h>
#include <json-glib/json-glib.h>

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Macros
#define	G_LOG_DOMAIN   "lib misc"
	GLib logging domain.

Functions
static JsonBuilder *	add_packages_str_to_list (JsonBuilder *builder, const gchar *packages)
	Split the package list string and creates a json array.
gchar *	make_table_driven_lsc_info_json_str (const char *scan_id, const char *ip_str, const char *hostname, const char *os_release, const char *package_list)
	Build a json object with data necessary to start a table drive LSC.
gchar *	get_status_of_table_driven_lsc_from_json (const char *scan_id, const char *host_ip, const char *json, int len)
	Get the status of table driven lsc from json object.

Macro Definition Documentation

G_LOG_DOMAIN

#define G_LOG_DOMAIN   "lib misc"

GLib logging domain.

Definition at line 21 of file table_driven_lsc.c.

Function Documentation

add_packages_str_to_list()

static JsonBuilder * add_packages_str_to_list ( JsonBuilder *  builder, const gchar *  packages  )

static

Split the package list string and creates a json array.

JSON result consists of scan_id, message type, host ip, hostname, port together with proto, OID, result message and uri.

Parameters

	[in/out]	builder The Json builder to add the array to.
[in]	packages	The installed package list as string

Returns

JSON builder including the package list as array.

Definition at line 35 of file table_driven_lsc.c.

{
  gchar **package_list = NULL;
 
  json_builder_set_member_name (builder, "package_list");
  json_builder_begin_array (builder);
 
  package_list = g_strsplit (packages, "\n", 0);
  if (package_list && package_list[0])
    {
      int i;
      for (i = 0; package_list[i]; i++)
        json_builder_add_string_value (builder, package_list[i]);
    }
 
  json_builder_end_array (builder);
  g_strfreev (package_list);
 
  return builder;
}

Referenced by make_table_driven_lsc_info_json_str().

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get_status_of_table_driven_lsc_from_json()

gchar * get_status_of_table_driven_lsc_from_json	(	const char *	scan_id,
		const char *	host_ip,
		const char *	json,
		int	len
	)

Get the status of table driven lsc from json object.

Checks for the corresponding status inside the JSON. If the status does not belong the the scan or host, NULL is returned instead. NULL is also returned if message JSON cannot be parsed correctly. Return value has to be freed by caller.

Parameters

scan_id	id of scan
host_ip	ip of host
json	json to get information from
len	length of json

Returns

gchar* Status of table driven lsc or NULL

Definition at line 145 of file table_driven_lsc.c.

{
  JsonParser *parser;
  JsonReader *reader = NULL;
 
  GError *err = NULL;
  gchar *ret = NULL;
 
  parser = json_parser_new ();
  if (!json_parser_load_from_data (parser, json, len, &err))
    {
      goto cleanup;
    }
 
  reader = json_reader_new (json_parser_get_root (parser));
 
  // Check for Scan ID
  if (!json_reader_read_member (reader, "scan_id"))
    {
      goto cleanup;
    }
  if (g_strcmp0 (json_reader_get_string_value (reader), scan_id))
    {
      goto cleanup;
    }
  json_reader_end_member (reader);
 
  // Check Host IP
  if (!json_reader_read_member (reader, "host_ip"))
    {
      goto cleanup;
    }
  if (g_strcmp0 (json_reader_get_string_value (reader), host_ip))
    {
      goto cleanup;
    }
  json_reader_end_member (reader);
 
  // Check Status
  if (!json_reader_read_member (reader, "status"))
    {
      goto cleanup;
    }
  ret = g_strdup (json_reader_get_string_value (reader));
 
  json_reader_end_member (reader);
 
cleanup:
  if (reader)
    g_object_unref (reader);
  g_object_unref (parser);
  if (err != NULL)
    {
      g_warning ("%s: Unable to parse json. Reason: %s", __func__,
                 err->message);
    }
  return ret;
}

References len, and scan_id.

Referenced by run_table_driven_lsc().

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make_table_driven_lsc_info_json_str()

gchar * make_table_driven_lsc_info_json_str	(	const char *	scan_id,
		const char *	ip_str,
		const char *	hostname,
		const char *	os_release,
		const char *	package_list
	)

Build a json object with data necessary to start a table drive LSC.

JSON result consists of scan_id, message type, host ip, hostname, port together with proto, OID, result message and uri.

Parameters

scan_id	Scan Id.
ip_str	IP string of host.
hostname	Name of host.
os_release	OS release
package_list	The installed package list in the target system to be evaluated

Returns

JSON string on success. Must be freed by caller. NULL on error.

Definition at line 72 of file table_driven_lsc.c.

{
  JsonBuilder *builder;
  JsonGenerator *gen;
  JsonNode *root;
  gchar *json_str;
 
  /* Build the message in json format to be published. */
  builder = json_builder_new ();
 
  json_builder_begin_object (builder);
 
  json_builder_set_member_name (builder, "message_id");
  builder = json_builder_add_string_value (builder, gvm_uuid_make ());
 
  json_builder_set_member_name (builder, "group_id");
  builder = json_builder_add_string_value (builder, gvm_uuid_make ());
 
  json_builder_set_member_name (builder, "message_type");
  builder = json_builder_add_string_value (builder, "scan.start");
 
  json_builder_set_member_name (builder, "created");
  builder = json_builder_add_int_value (builder, time (NULL));
 
  json_builder_set_member_name (builder, "scan_id");
  builder = json_builder_add_string_value (builder, scan_id);
 
  json_builder_set_member_name (builder, "host_ip");
  json_builder_add_string_value (builder, ip_str);
 
  json_builder_set_member_name (builder, "host_name");
  json_builder_add_string_value (builder, hostname);
 
  json_builder_set_member_name (builder, "os_release");
  json_builder_add_string_value (builder, os_release);
 
  add_packages_str_to_list (builder, package_list);
 
  json_builder_end_object (builder);
 
  gen = json_generator_new ();
  root = json_builder_get_root (builder);
  json_generator_set_root (gen, root);
  json_str = json_generator_to_data (gen, NULL);
 
  json_node_free (root);
  g_object_unref (gen);
  g_object_unref (builder);
 
  if (json_str == NULL)
    g_warning ("%s: Error while creating JSON.", __func__);
 
  return json_str;
}

References add_packages_str_to_list(), hostname, and scan_id.

Referenced by run_table_driven_lsc().

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