コード例 #1
0
ファイル: mgmt_scf.c プロジェクト: alhazred/onarm
/*
 * this function tries to convert configuration in files into scf
 * it loads xml conf into node tree then dump them to scf with
 * mgmt_config_save2scf()
 * this function has 3 return values:
 * CONVERT_OK: successfully converted
 * CONVERT_INIT_NEW: configuration files dont exist, created a new scf entry
 * CONVERT_FAIL: some error occurred in conversion and no scf entry created.
 *               In this case, user have to check files manually and try
 *               conversion again.
 */
convert_ret_t
mgmt_convert_conf()
{
	targ_scf_t		*h = NULL;
	xmlTextReaderPtr	r;
	convert_ret_t		ret = CONVERT_FAIL;
	int			xml_fd = -1;
	int			n;
	tgt_node_t		*node = NULL;
	tgt_node_t		*next = NULL;
	char			path[MAXPATHLEN];
	char			*target = NULL;

	h = mgmt_handle_init();
	if (h == NULL)
		return (CONVERT_FAIL);

	/* check main config in pgroup iscsitgt */
	if (scf_service_get_pg(h->t_service, "iscsitgt", h->t_pg) == 0) {
		ret = CONVERT_OK;
		goto done;
	}

	/* check the conf files */
	if (access(config_file, R_OK) != 0) {
		/*
		 * if there is no configuration file, initialize
		 * an empty scf entry
		 */
		if (mgmt_transaction_start(h, "iscsitgt", "basic") == True) {
			ret = CONVERT_INIT_NEW;

			node = tgt_node_alloc(XML_ELEMENT_VERS, String, "1.0");
			new_property(h, node);
			tgt_node_free(node);
			/* "daemonize" is set to true by default */
			node = tgt_node_alloc(XML_ELEMENT_DBGDAEMON, String,
			    "true");
			new_property(h, node);
			tgt_node_free(node);
			node = NULL;
			node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
			    ISCSI_AUTH_MODIFY);
			new_property(h, node);
			tgt_node_free(node);
			node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
			    ISCSI_AUTH_VALUE);
			new_property(h, node);
			tgt_node_free(node);
			mgmt_transaction_end(h);
		} else {
			syslog(LOG_ERR, "Creating empty entry failed");
			ret = CONVERT_FAIL;
			goto done;
		}
		if (mgmt_transaction_start(h, "passwords", "application") ==
		    True) {
			node = tgt_node_alloc(ISCSI_READ_AUTHNAME, String,
			    ISCSI_AUTH_READ);
			new_property(h, node);
			tgt_node_free(node);
			node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
			    ISCSI_AUTH_MODIFY);
			new_property(h, node);
			tgt_node_free(node);
			node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
			    ISCSI_AUTH_VALUE);
			new_property(h, node);
			tgt_node_free(node);
			mgmt_transaction_end(h);
		} else {
			syslog(LOG_ERR, "Creating empty entry failed");
			ret = CONVERT_FAIL;
		}
		goto done;
	}

	if ((xml_fd = open(config_file, O_RDONLY)) >= 0)
		r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd, NULL, NULL, 0);

	if (r != NULL) {
		n = xmlTextReaderRead(r);
		while (n == 1) {
			if (tgt_node_process(r, &node) == False) {
				break;
			}
			n = xmlTextReaderRead(r);
		}
		if (n < 0) {
			syslog(LOG_ERR, "Parsing main config failed");
			ret = CONVERT_FAIL;
			goto done;
		}

		main_config = node;

		(void) tgt_find_value_str(node, XML_ELEMENT_BASEDIR,
		    &target_basedir);

		if (target_basedir == NULL)
			target_basedir = strdup(DEFAULT_TARGET_BASEDIR);

		/* Now convert targets' config if possible */
		if (xml_fd != -1)
			(void) close(xml_fd);
		xmlTextReaderClose(r);
		xmlFreeTextReader(r);
		xmlCleanupParser();
		r = NULL;
		xml_fd = -1;
		node = NULL;

		(void) snprintf(path, MAXPATHLEN, "%s/%s",
		    target_basedir, "config.xml");

		if ((xml_fd = open(path, O_RDONLY)) >= 0)
			r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd,
			    NULL, NULL, 0);

		if (r != NULL) {
			n = xmlTextReaderRead(r);
			while (n == 1) {
				if (tgt_node_process(r, &node) == False) {
					break;
				}
				n = xmlTextReaderRead(r);
			}
			if (n < 0) {
				syslog(LOG_ERR, "Parsing target conf failed");
				ret = CONVERT_FAIL;
				goto done;
			}

			/* now combine main_config and node */
			if (node) {
				next = NULL;
				while ((next = tgt_node_next(node,
				    XML_ELEMENT_TARG, next)) != NULL) {
					tgt_node_add(main_config,
					    tgt_node_dup(next));
				}
				tgt_node_free(node);
			}

			if (mgmt_config_save2scf() != True) {
				syslog(LOG_ERR, "Converting config failed");
				if (xml_fd != -1)
					(void) close(xml_fd);
				xmlTextReaderClose(r);
				xmlFreeTextReader(r);
				xmlCleanupParser();
				ret = CONVERT_FAIL;
				goto done;
			}

			/* Copy files into backup dir */
			(void) snprintf(path, sizeof (path), "%s/backup",
			    target_basedir);
			if ((mkdir(path, 0755) == -1) && (errno != EEXIST)) {
				syslog(LOG_ERR, "Creating backup dir failed");
				ret = CONVERT_FAIL;
				goto done;
			}
			backup(config_file, NULL);
			(void) snprintf(path, MAXPATHLEN, "%s/%s",
			    target_basedir, "config.xml");
			backup(path, NULL);


			while ((next = tgt_node_next(main_config,
			    XML_ELEMENT_TARG, next)) != NULL) {
				if (tgt_find_value_str(next, XML_ELEMENT_INAME,
				    &target) == False) {
					continue;
				}
				(void) snprintf(path, MAXPATHLEN, "%s/%s",
				    target_basedir, target);
				if (mgmt_convert_param(path, next)
				    != True) {
					ret = CONVERT_FAIL;
					goto done;
				}
				free(target);
			}

			ret = CONVERT_OK;
			syslog(LOG_NOTICE, "Conversion succeeded");

			xmlTextReaderClose(r);
			xmlFreeTextReader(r);
			xmlCleanupParser();
		} else {
			syslog(LOG_ERR, "Reading targets config failed");
			ret = CONVERT_FAIL;
			goto done;
		}
	} else {
		syslog(LOG_ERR, "Reading main config failed");
		ret = CONVERT_FAIL;
		goto done;
	}

done:
	if (xml_fd != -1)
		(void) close(xml_fd);
	mgmt_handle_fini(h);
	return (ret);
}
コード例 #2
0
ファイル: mgmt_scf.c プロジェクト: imp/slist
/*
 * Convert legacy (XML) configuration files into an equivalent SCF
 * representation.
 *
 * Read the XML from disk, translate the XML into a tree of nodes of
 * type tgt_node_t, and write the in-memory tree to SCF's persistent
 * data-store using mgmt_config_save2scf().
 *
 * Return Values:
 * CONVERT_OK:	     successfully converted
 * CONVERT_INIT_NEW: configuration files don't exist; created an SCF entry
 * CONVERT_FAIL: some conversion error occurred; no SCF entry created.
 *		 In this case, user has to manually check files and try
 *		 conversion again.
 */
convert_ret_t
mgmt_convert_conf()
{
	targ_scf_t		*h = NULL;
	xmlTextReaderPtr	r;
	convert_ret_t		ret = CONVERT_FAIL;
	int			xml_fd = -1;
	int			n;
	tgt_node_t		*node = NULL;
	tgt_node_t		*next = NULL;
	char			path[MAXPATHLEN];
	char			*target = NULL;

	h = mgmt_handle_init();
	if (h == NULL)
		return (CONVERT_FAIL);

	/*
	 * Check if the "iscsitgt" PropertyGroup has already been added
	 * to the "iscsitgt" SMF Service.  If so, then we have already
	 * converted the legacy configuration files (and there is no work
	 * to do).
	 */
	if (scf_service_get_pg(h->t_service, "iscsitgt", h->t_pg) == 0) {
		ret = CONVERT_OK;
		goto done;
	}

	if (access(config_file, R_OK) != 0) {
		/*
		 * then the Main Config file is not present; initialize
		 * SCF Properties to default values.
		 */
		if (mgmt_transaction_start(h, "iscsitgt", "basic") == True) {
			ret = CONVERT_INIT_NEW;

			node = tgt_node_alloc(XML_ELEMENT_VERS, String, "1.0");
			new_property(h, node);
			tgt_node_free(node);
			/* "daemonize" is set to true by default */
			node = tgt_node_alloc(XML_ELEMENT_DBGDAEMON, String,
			    "true");
			new_property(h, node);
			tgt_node_free(node);
			node = NULL;
			node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
			    ISCSI_AUTH_MODIFY);
			new_property(h, node);
			tgt_node_free(node);
			node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
			    ISCSI_AUTH_VALUE);
			new_property(h, node);
			tgt_node_free(node);
			(void) mgmt_transaction_end(h);
		} else {
			syslog(LOG_ERR, "Creating empty entry failed");
			ret = CONVERT_FAIL;
			goto done;
		}
		if (mgmt_transaction_start(h, "passwords", "application") ==
		    True) {
			node = tgt_node_alloc(ISCSI_READ_AUTHNAME, String,
			    ISCSI_AUTH_READ);
			new_property(h, node);
			tgt_node_free(node);
			node = tgt_node_alloc(ISCSI_MODIFY_AUTHNAME, String,
			    ISCSI_AUTH_MODIFY);
			new_property(h, node);
			tgt_node_free(node);
			node = tgt_node_alloc(ISCSI_VALUE_AUTHNAME, String,
			    ISCSI_AUTH_VALUE);
			new_property(h, node);
			tgt_node_free(node);
			(void) mgmt_transaction_end(h);
		} else {
			syslog(LOG_ERR, "Creating empty entry failed");
			ret = CONVERT_FAIL;
		}
		goto done;
	}

	if ((xml_fd = open(config_file, O_RDONLY)) >= 0)
		r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd, NULL, NULL, 0);

	if (r != NULL) {
		int is_target_config;

		n = xmlTextReaderRead(r);
		while (n == 1) {
			if (tgt_node_process(r, &node) == False) {
				break;
			}
			n = xmlTextReaderRead(r);
		}
		if (n < 0) {
			syslog(LOG_ERR, "Parsing main config failed");
			ret = CONVERT_FAIL;
			goto done;
		}

		main_config = node;

		/*
		 * Initialize the Base Directory (global) variable by
		 * using the value specified in the XML_ELEMENT_BASEDIR
		 * XML tag.  If a tag is not specified, use a default.
		 */
		(void) tgt_find_value_str(node, XML_ELEMENT_BASEDIR,
		    &target_basedir);

		if (target_basedir == NULL)
			target_basedir = strdup(DEFAULT_TARGET_BASEDIR);

		if (xml_fd != -1) {
			(void) close(xml_fd);
			xml_fd = -1;
		}
		(void) xmlTextReaderClose(r);
		xmlFreeTextReader(r);
		xmlCleanupParser();

		/*
		 * If a Target Config file is present, read and translate
		 * its XML representation into a tree of tgt_node_t.
		 * Merge that tree with the tree of tgt_node_t rooted at
		 * 'main_config'.  The merged tree will then be archived
		 * using an SCF representation.
		 */
		(void) snprintf(path, MAXPATHLEN, "%s/%s",
		    target_basedir, "config.xml");

		if ((xml_fd = open(path, O_RDONLY)) >= 0) {
			is_target_config = 1;
			r = (xmlTextReaderPtr)xmlReaderForFd(xml_fd,
			    NULL, NULL, 0);
		} else {
			is_target_config = 0;
			r = NULL;
		}

		if (r != NULL) {
			/* then the Target Config file is available. */

			node = NULL;

			/*
			 * Create a tree of tgt_node_t rooted at 'node' by
			 * processing each XML Tag in the file.
			 */
			n = xmlTextReaderRead(r);
			while (n == 1) {
				if (tgt_node_process(r, &node) == False) {
					break;
				}
				n = xmlTextReaderRead(r);
			}
			if (n < 0) {
				syslog(LOG_ERR, "Parsing target conf failed");
				ret = CONVERT_FAIL;
				goto done;
			}

			/*
			 * Merge the tree at 'node' into the tree rooted at
			 * 'main_config'.
			 */
			if (node != NULL) {
				next = NULL;
				while ((next = tgt_node_next(node,
				    XML_ELEMENT_TARG, next)) != NULL) {
					tgt_node_add(main_config,
					    tgt_node_dup(next));
				}
				tgt_node_free(node);
			}
		}

		/*
		 * Iterate over the in-memory tree rooted at 'main_config'
		 * and write a representation of the appropriate nodes to
		 * SCF's persistent data-store.
		 */
		if (mgmt_config_save2scf() != True) {
			syslog(LOG_ERR, "Converting config failed");
			if (xml_fd != -1) {
				(void) close(xml_fd);
				xml_fd = -1;
			}
			(void) xmlTextReaderClose(r);
			xmlFreeTextReader(r);
			xmlCleanupParser();
			ret = CONVERT_FAIL;
			goto done;
		}

		/*
		 * Move the configuration files into a well-known backup
		 * directory.  This allows a user to restore their
		 * configuration, if they choose.
		 */
		(void) snprintf(path, sizeof (path), "%s/backup",
		    target_basedir);
		if ((mkdir(path, 0755) == -1) && (errno != EEXIST)) {
			syslog(LOG_ERR, "Creating backup dir failed");
			ret = CONVERT_FAIL;
			goto done;
		}
		/* Save the Main Config file. */
		backup(config_file, NULL);

		/* Save the Target Config file, if it was present. */
		if (is_target_config != 0) {
			(void) snprintf(path, MAXPATHLEN, "%s/%s",
			    target_basedir, "config.xml");
			backup(path, NULL);
		}

		/*
		 * For each tgt_node_t node in 'main_config' whose value is
		 * an iSCSI Name as defined in the RFC (3720) standard (eg,
		 * "iqn.1986..."), read its XML-encoded attributes from a
		 * flat-file and write an equivalent representation to SCF's
		 * data-store.
		 */
		while ((next = tgt_node_next(main_config,
		    XML_ELEMENT_TARG, next)) != NULL) {
			if (tgt_find_value_str(next, XML_ELEMENT_INAME,
			    &target) == False) {
				continue;
			}
			(void) snprintf(path, MAXPATHLEN, "%s/%s",
			    target_basedir, target);
			if (mgmt_convert_param(path, next)
			    != True) {
				ret = CONVERT_FAIL;
				goto done;
			}
			free(target);
		}

		ret = CONVERT_OK;
		syslog(LOG_NOTICE, "Conversion succeeded");

		(void) xmlTextReaderClose(r);
		xmlFreeTextReader(r);
		xmlCleanupParser();
	} else {
		syslog(LOG_ERR, "Reading main config failed");
		ret = CONVERT_FAIL;
		goto done;
	}

done:
	if (xml_fd != -1)
		(void) close(xml_fd);
	mgmt_handle_fini(h);
	return (ret);
}