Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 240 insertions, 0 deletions

diff --git a/servers/slapd/overlays/auditlog.c b/servers/slapd/overlays/auditlog.c
new file mode 100644
index 0000000..b98aea1
--- /dev/null
+++ b/servers/slapd/overlays/auditlog.c
@@ -0,0 +1,240 @@
+/* auditlog.c - log modifications for audit/history purposes */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2005-2021 The OpenLDAP Foundation.
+ * Portions copyright 2004-2005 Symas Corporation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Symas Corp. for inclusion in
+ * OpenLDAP Software.  This work was sponsored by Hewlett-Packard.
+ */
+
+#include "portable.h"
+
+#ifdef SLAPD_OVER_AUDITLOG
+
+#include <stdio.h>
+
+#include <ac/string.h>
+#include <ac/ctype.h>
+
+#include "slap.h"
+#include "config.h"
+#include "ldif.h"
+
+typedef struct auditlog_data {
+	ldap_pvt_thread_mutex_t ad_mutex;
+	char *ad_logfile;
+} auditlog_data;
+
+static ConfigTable auditlogcfg[] = {
+	{ "auditlog", "filename", 2, 2, 0,
+	  ARG_STRING|ARG_OFFSET,
+	  (void *)offsetof(auditlog_data, ad_logfile),
+	  "( OLcfgOvAt:15.1 NAME 'olcAuditlogFile' "
+	  "DESC 'Filename for auditlogging' "
+	  "SYNTAX OMsDirectoryString )", NULL, NULL },
+	{ NULL, NULL, 0, 0, 0, ARG_IGNORED }
+};
+
+static ConfigOCs auditlogocs[] = {
+	{ "( OLcfgOvOc:15.1 "
+	  "NAME 'olcAuditlogConfig' "
+	  "DESC 'Auditlog configuration' "
+	  "SUP olcOverlayConfig "
+	  "MAY ( olcAuditlogFile ) )",
+	  Cft_Overlay, auditlogcfg },
+	{ NULL, 0, NULL }
+};
+
+static int fprint_ldif(FILE *f, char *name, char *val, ber_len_t len) {
+	char *s;
+	if((s = ldif_put(LDIF_PUT_VALUE, name, val, len)) == NULL)
+		return(-1);
+	fputs(s, f);
+	ber_memfree(s);
+	return(0);
+}
+
+static int auditlog_response(Operation *op, SlapReply *rs) {
+	slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
+	auditlog_data *ad = on->on_bi.bi_private;
+	FILE *f;
+	Attribute *a;
+	Modifications *m;
+	struct berval *b, *who = NULL, peername;
+	char *what, *whatm, *suffix;
+	time_t stamp;
+	int i;
+
+	if ( rs->sr_err != LDAP_SUCCESS ) return SLAP_CB_CONTINUE;
+
+	if ( !ad->ad_logfile ) return SLAP_CB_CONTINUE;
+
+/*
+** add or modify: use modifiersName if present
+**
+*/
+	switch(op->o_tag) {
+		case LDAP_REQ_MODRDN:	what = "modrdn";	break;
+		case LDAP_REQ_DELETE:	what = "delete";	break;
+		case LDAP_REQ_ADD:
+			what = "add";
+			for(a = op->ora_e->e_attrs; a; a = a->a_next)
+				if( a->a_desc == slap_schema.si_ad_modifiersName ) {
+					who = &a->a_vals[0];
+					break;
+				}
+			break;
+		case LDAP_REQ_MODIFY:
+			what = "modify";
+			for(m = op->orm_modlist; m; m = m->sml_next)
+				if( m->sml_desc == slap_schema.si_ad_modifiersName &&
+					( m->sml_op == LDAP_MOD_ADD ||
+					m->sml_op == LDAP_MOD_REPLACE )) {
+					who = &m->sml_values[0];
+					break;
+				}
+			break;
+		default:
+			return SLAP_CB_CONTINUE;
+	}
+
+	suffix = op->o_bd->be_suffix[0].bv_len ? op->o_bd->be_suffix[0].bv_val :
+		"global";
+
+/*
+** note: this means requestor's dn when modifiersName is null
+*/
+	if ( !who )
+		who = &op->o_dn;
+
+	peername = op->o_conn->c_peer_name;
+	ldap_pvt_thread_mutex_lock(&ad->ad_mutex);
+	if((f = fopen(ad->ad_logfile, "a")) == NULL) {
+		ldap_pvt_thread_mutex_unlock(&ad->ad_mutex);
+		return SLAP_CB_CONTINUE;
+	}
+
+	stamp = slap_get_time();
+	fprintf(f, "# %s %ld %s%s%s %s conn=%ld\n",
+		what, (long)stamp, suffix, who ? " " : "", who ? who->bv_val : "",
+		peername.bv_val ? peername.bv_val: "", op->o_conn->c_connid);
+
+	if ( !BER_BVISEMPTY( &op->o_conn->c_dn ) &&
+		(!who || !dn_match( who, &op->o_conn->c_dn )))
+		fprintf(f, "# realdn: %s\n", op->o_conn->c_dn.bv_val );
+
+	fprintf(f, "dn: %s\nchangetype: %s\n",
+		op->o_req_dn.bv_val, what);
+
+	switch(op->o_tag) {
+	  case LDAP_REQ_ADD:
+		for(a = op->ora_e->e_attrs; a; a = a->a_next)
+		  if((b = a->a_vals) != NULL)
+			for(i = 0; b[i].bv_val; i++)
+				fprint_ldif(f, a->a_desc->ad_cname.bv_val, b[i].bv_val, b[i].bv_len);
+		break;
+
+	  case LDAP_REQ_MODIFY:
+		for(m = op->orm_modlist; m; m = m->sml_next) {
+			switch(m->sml_op & LDAP_MOD_OP) {
+				case LDAP_MOD_ADD:	 whatm = "add";		break;
+				case LDAP_MOD_REPLACE:	 whatm = "replace";	break;
+				case LDAP_MOD_DELETE:	 whatm = "delete";	break;
+				case LDAP_MOD_INCREMENT: whatm = "increment";	break;
+				default:
+					fprintf(f, "# MOD_TYPE_UNKNOWN:%02x\n", m->sml_op & LDAP_MOD_OP);
+					continue;
+			}
+			fprintf(f, "%s: %s\n", whatm, m->sml_desc->ad_cname.bv_val);
+			if((b = m->sml_values) != NULL)
+			  for(i = 0; b[i].bv_val; i++)
+				fprint_ldif(f, m->sml_desc->ad_cname.bv_val, b[i].bv_val, b[i].bv_len);
+			fprintf(f, "-\n");
+		}
+		break;
+
+	  case LDAP_REQ_MODRDN:
+		fprintf(f, "newrdn: %s\ndeleteoldrdn: %s\n",
+			op->orr_newrdn.bv_val, op->orr_deleteoldrdn ? "1" : "0");
+		if(op->orr_newSup) fprintf(f, "newsuperior: %s\n", op->orr_newSup->bv_val);
+		break;
+
+	  case LDAP_REQ_DELETE:
+		/* nothing else needed */
+		break;
+	}
+
+	fprintf(f, "# end %s %ld\n\n", what, (long)stamp);
+
+	fclose(f);
+	ldap_pvt_thread_mutex_unlock(&ad->ad_mutex);
+	return SLAP_CB_CONTINUE;
+}
+
+static slap_overinst auditlog;
+
+static int
+auditlog_db_init(
+	BackendDB *be,
+	ConfigReply *cr
+)
+{
+	slap_overinst *on = (slap_overinst *)be->bd_info;
+	auditlog_data *ad = ch_calloc(1, sizeof(auditlog_data));
+
+	on->on_bi.bi_private = ad;
+	ldap_pvt_thread_mutex_init( &ad->ad_mutex );
+	return 0;
+}
+
+static int
+auditlog_db_destroy(
+	BackendDB *be,
+	ConfigReply *cr
+)
+{
+	slap_overinst *on = (slap_overinst *)be->bd_info;
+	auditlog_data *ad = on->on_bi.bi_private;
+
+	ldap_pvt_thread_mutex_destroy( &ad->ad_mutex );
+	free( ad->ad_logfile );
+	free( ad );
+	return 0;
+}
+
+int auditlog_initialize() {
+	int rc;
+
+	auditlog.on_bi.bi_type = "auditlog";
+	auditlog.on_bi.bi_db_init = auditlog_db_init;
+	auditlog.on_bi.bi_db_destroy = auditlog_db_destroy;
+	auditlog.on_response = auditlog_response;
+
+	auditlog.on_bi.bi_cf_ocs = auditlogocs;
+	rc = config_register_schema( auditlogcfg, auditlogocs );
+	if ( rc ) return rc;
+
+	return overlay_register(&auditlog);
+}
+
+#if SLAPD_OVER_AUDITLOG == SLAPD_MOD_DYNAMIC && defined(PIC)
+int
+init_module( int argc, char *argv[] )
+{
+	return auditlog_initialize();
+}
+#endif
+
+#endif /* SLAPD_OVER_AUDITLOG */