1*f95714a4Smartijn /*
2*f95714a4Smartijn * $OpenBSD: search.c,v 1.1 2020/09/12 15:06:12 martijn Exp $
3*f95714a4Smartijn * Copyright (c) 2002 Institute for Open Systems Technology Australia (IFOST)
4*f95714a4Smartijn * Copyright (c) 2007 Michael Erdely <merdely@openbsd.org>
5*f95714a4Smartijn * Copyright (c) 2019 Martijn van Duren <martijn@openbsd.org>
6*f95714a4Smartijn *
7*f95714a4Smartijn * All rights reserved.
8*f95714a4Smartijn *
9*f95714a4Smartijn * Redistribution and use in source and binary forms, with or without
10*f95714a4Smartijn * modification, are permitted provided that the following conditions
11*f95714a4Smartijn * are met:
12*f95714a4Smartijn * 1. Redistributions of source code must retain the above copyright
13*f95714a4Smartijn * notice, this list of conditions and the following disclaimer.
14*f95714a4Smartijn * 2. Redistributions in binary form must reproduce the above copyright
15*f95714a4Smartijn * notice, this list of conditions and the following disclaimer in the
16*f95714a4Smartijn * documentation and/or other materials provided with the distribution.
17*f95714a4Smartijn * 3. The name of the author may not be used to endorse or promote products
18*f95714a4Smartijn * derived from this software without specific prior written permission.
19*f95714a4Smartijn *
20*f95714a4Smartijn * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
21*f95714a4Smartijn * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
22*f95714a4Smartijn * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23*f95714a4Smartijn * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24*f95714a4Smartijn * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25*f95714a4Smartijn * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26*f95714a4Smartijn * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27*f95714a4Smartijn * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28*f95714a4Smartijn * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29*f95714a4Smartijn * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30*f95714a4Smartijn */
31*f95714a4Smartijn #include <netinet/in.h>
32*f95714a4Smartijn
33*f95714a4Smartijn #include <stdio.h>
34*f95714a4Smartijn #include <stdlib.h>
35*f95714a4Smartijn #include <string.h>
36*f95714a4Smartijn #include <login_cap.h>
37*f95714a4Smartijn #include <unistd.h>
38*f95714a4Smartijn
39*f95714a4Smartijn #include "aldap.h"
40*f95714a4Smartijn #include "login_ldap.h"
41*f95714a4Smartijn
42*f95714a4Smartijn int q = 0;
43*f95714a4Smartijn
44*f95714a4Smartijn char *
search(struct auth_ctx * ctx,char * base,char * flt,enum scope scp)45*f95714a4Smartijn search(struct auth_ctx *ctx, char *base, char *flt, enum scope scp)
46*f95714a4Smartijn {
47*f95714a4Smartijn struct aldap_message *m;
48*f95714a4Smartijn int mcode;
49*f95714a4Smartijn const char *errstr;
50*f95714a4Smartijn char *userdn = NULL;
51*f95714a4Smartijn
52*f95714a4Smartijn dlog(1, "%d: search (%s, %s)", q, base ? base : "no base", flt);
53*f95714a4Smartijn
54*f95714a4Smartijn if (aldap_search(ctx->ld, base, scp, flt, NULL, 0, 0, ctx->timeout,
55*f95714a4Smartijn NULL) == -1) {
56*f95714a4Smartijn aldap_get_errno(ctx->ld, &errstr);
57*f95714a4Smartijn dlog(1, "search result: %s", errstr);
58*f95714a4Smartijn return NULL;
59*f95714a4Smartijn }
60*f95714a4Smartijn
61*f95714a4Smartijn q++;
62*f95714a4Smartijn
63*f95714a4Smartijn while ((m = aldap_parse(ctx->ld)) != NULL) {
64*f95714a4Smartijn dlog(1, "%d: msgid %d, type %02x",q, m->msgid, m->message_type);
65*f95714a4Smartijn
66*f95714a4Smartijn if (m->message_type == LDAP_RES_SEARCH_RESULT) {
67*f95714a4Smartijn mcode = aldap_get_resultcode(m);
68*f95714a4Smartijn /*
69*f95714a4Smartijn * if its not a referral we're done with this message
70*f95714a4Smartijn */
71*f95714a4Smartijn if (mcode != LDAP_SUCCESS) {
72*f95714a4Smartijn dlog(0, "%d: unhandled search result %x %s",
73*f95714a4Smartijn q, mcode, ldap_resultcode(mcode));
74*f95714a4Smartijn aldap_freemsg(m);
75*f95714a4Smartijn return NULL;
76*f95714a4Smartijn }
77*f95714a4Smartijn aldap_freemsg(m);
78*f95714a4Smartijn break;
79*f95714a4Smartijn } else if (m->message_type == LDAP_RES_SEARCH_ENTRY) {
80*f95714a4Smartijn userdn = aldap_get_dn(m);
81*f95714a4Smartijn dlog(1, "%d: SEARCH_ENTRY userdn %s", q, userdn ? userdn : "none");
82*f95714a4Smartijn }
83*f95714a4Smartijn aldap_freemsg(m);
84*f95714a4Smartijn }
85*f95714a4Smartijn
86*f95714a4Smartijn dlog(1, "%d: returning userdn = %s", q, userdn ? userdn : "no user dn");
87*f95714a4Smartijn q--;
88*f95714a4Smartijn return userdn;
89*f95714a4Smartijn }
90