OpenSolaris Launch

1 files changed, 187 insertions, 0 deletions

diff --git a/usr/src/lib/nsswitch/ldap/common/getbootparams.c b/usr/src/lib/nsswitch/ldap/common/getbootparams.c
new file mode 100644
index 0000000000..f1426ba4b6
--- /dev/null
+++ b/usr/src/lib/nsswitch/ldap/common/getbootparams.c
@@ -0,0 +1,187 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include "ldap_common.h"
+
+/* bootparams attributes filters */
+#define	_B_HOSTNAME		"cn"
+#define	_B_PARAMETER		"bootparameter"
+#define	_F_GETBOOTPARAMBYNAME	"(&(objectClass=bootableDevice)(cn=%s))"
+#define	_F_GETBOOTPARAMBYNAME_SSD "(&(%%s)(cn=%s))"
+
+static const char *bootparams_attrs[] = {
+	_B_HOSTNAME,
+	_B_PARAMETER,
+	(char *)NULL
+};
+
+/*
+ * _nss_ldap_bootparams2ent is the data marshaling method for the
+ * bootparams getXbyY (e.g., getbyname()) backend processes. This
+ * method is called after a successful ldap search has been performed.
+ * This method will parse the ldap search values into argp->buf.buffer
+ * Three error conditions are expected and returned to nsswitch.
+ *
+ * A host's bootparameters are returned on one line separated by white
+ * space. Slapd stores each boot parameter as a separate entry. If more
+ * than one bootparameter is available, a white space separated buffer
+ * must be constructed and returned.
+ */
+
+static int
+_nss_ldap_bootparams2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp)
+{
+	int		i, j, nss_result;
+	int		buflen = (int)0;
+	int		firstime = (int)1;
+	unsigned long	len = 0L;
+	char		*cp = (char *)NULL;
+	char		*buffer = (char *)NULL;
+	ns_ldap_result_t	*result = be->result;
+	ns_ldap_attr_t	*attrptr;
+
+	buffer = argp->buf.buffer;
+	buflen = (size_t)argp->buf.buflen;
+
+	nss_result = (int)NSS_STR_PARSE_SUCCESS;
+	(void) memset(buffer, 0, buflen);
+
+	attrptr = getattr(result, 0);
+	if (attrptr == NULL) {
+		nss_result = (int)NSS_STR_PARSE_PARSE;
+		goto result_bp2ent;
+	}
+
+	for (i = 0; i < result->entry->attr_count; i++) {
+		attrptr = getattr(result, i);
+		if (attrptr == NULL) {
+			nss_result = (int)NSS_STR_PARSE_PARSE;
+			goto result_bp2ent;
+		}
+		if (strcasecmp(attrptr->attrname, _B_PARAMETER) == 0) {
+			for (j = 0; j < attrptr->value_count; j++) {
+				if ((attrptr->attrvalue[j] == NULL) ||
+				    (len = strlen(attrptr->attrvalue[j])) < 1) {
+					*buffer = 0;
+					nss_result = (int)NSS_STR_PARSE_PARSE;
+					goto result_bp2ent;
+				}
+				if (len > buflen) {
+					nss_result = (int)NSS_STR_PARSE_ERANGE;
+					goto result_bp2ent;
+				}
+				if (firstime) {
+					(void) strcpy(buffer,
+					    attrptr->attrvalue[j]);
+					firstime = (int)0;
+				} else {
+					if ((cp = strrchr(buffer, '\0'))
+					    != NULL)
+						*cp = ' ';
+					(void) strcat(buffer,
+					    attrptr->attrvalue[j]);
+				}
+			}
+		}
+	}
+
+#ifdef DEBUG
+	(void) fprintf(stdout, "\n[bootparams_getbyname.c: "
+		    "_nss_ldap_bootparams2ent]\n");
+	(void) fprintf(stdout, " bootparameter: [%s]\n", buffer);
+#endif /* DEBUG */
+
+result_bp2ent:
+
+	(void) __ns_ldap_freeResult(&be->result);
+	return ((int)nss_result);
+}
+
+/*
+ * getbyname gets bootparameters by host name. This function constructs an
+ * ldap search filter using the host name invocation parameter and the
+ * getbootparambyname search filter defined. Once the filter is
+ * constructed, we search for matching entries and marshal the data
+ * results into argp->buf.buffer for the frontend process. The function
+ * _nss_ldap_bootparams2ent performs the data marshaling.
+ *
+ * RFC 2307, An Approach for Using LDAP as a Network Information Service,
+ * indicates that dn's be fully qualified. Host name searches will be on
+ * fully qualified host names (e.g., foo.bar.sun.com).
+ */
+
+static nss_status_t
+getbyname(ldap_backend_ptr be, void *a)
+{
+	char		hostname[3 * MAXHOSTNAMELEN];
+	nss_XbyY_args_t	*argp = (nss_XbyY_args_t *)a;
+	char		searchfilter[SEARCHFILTERLEN];
+	char		userdata[SEARCHFILTERLEN];
+	int		ret;
+
+	if (_ldap_filter_name(hostname, argp->key.name, sizeof (hostname)) != 0)
+		return ((nss_status_t)NSS_NOTFOUND);
+
+	ret = snprintf(searchfilter, sizeof (searchfilter),
+	    _F_GETBOOTPARAMBYNAME, hostname);
+	if (ret >= sizeof (searchfilter) || ret < 0)
+		return ((nss_status_t)NSS_NOTFOUND);
+
+	ret = snprintf(userdata, sizeof (userdata),
+	    _F_GETBOOTPARAMBYNAME_SSD, hostname);
+	if (ret >= sizeof (userdata) || ret < 0)
+		return ((nss_status_t)NSS_NOTFOUND);
+
+	return ((nss_status_t)_nss_ldap_lookup(be, argp,
+		_BOOTPARAMS, searchfilter, NULL,
+		_merge_SSD_filter, userdata));
+}
+
+
+static ldap_backend_op_t bootparams_ops[] = {
+	_nss_ldap_destr,
+	getbyname
+};
+
+
+/*
+ * _nss_ldap_bootparams_constr is where life begins. This function calls
+ * the generic ldap constructor function to define and build the abstract
+ * data types required to support ldap operations.
+ */
+
+/*ARGSUSED0*/
+nss_backend_t *
+_nss_ldap_bootparams_constr(const char *dummy1, const char *dummy2,
+			const char *dummy3)
+{
+
+	return ((nss_backend_t *)_nss_ldap_constr(bootparams_ops,
+		sizeof (bootparams_ops)/sizeof (bootparams_ops[0]),
+		_BOOTPARAMS, bootparams_attrs, _nss_ldap_bootparams2ent));
+}