summaryrefslogtreecommitdiff
path: root/source4/ldap_server/ldap_bind.c
blob: aba35e0b56e7fdf8ba29a89abfa62c4e8f99fbe8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
/* 
   Unix SMB/CIFS implementation.
   LDAP server
   Copyright (C) Stefan Metzmacher 2004
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "includes.h"
#include "ldap_server/ldap_server.h"
#include "auth/auth.h"
#include "libcli/ldap/ldap.h"
#include "smbd/service_stream.h"

static NTSTATUS ldapsrv_BindSimple(struct ldapsrv_call *call)
{
	struct ldap_BindRequest *req = &call->request->r.BindRequest;
	struct ldapsrv_reply *reply;
	struct ldap_BindResponse *resp;

	DEBUG(10, ("BindSimple dn: %s\n",req->dn));

	reply = ldapsrv_init_reply(call, LDAP_TAG_BindResponse);
	if (!reply) {
		return NT_STATUS_NO_MEMORY;
	}

	resp = &reply->msg->r.BindResponse;
	resp->response.resultcode = 0;
	resp->response.dn = NULL;
	resp->response.errormessage = NULL;
	resp->response.referral = NULL;
	resp->SASL.secblob = data_blob(NULL, 0);

	ldapsrv_queue_reply(call, reply);
	return NT_STATUS_OK;
}

static NTSTATUS ldapsrv_BindSASL(struct ldapsrv_call *call)
{
	struct ldap_BindRequest *req = &call->request->r.BindRequest;
	struct ldapsrv_reply *reply;
	struct ldap_BindResponse *resp;
	struct ldapsrv_connection *conn;
	int result;
	const char *errstr;
	NTSTATUS status = NT_STATUS_OK;

	DEBUG(10, ("BindSASL dn: %s\n",req->dn));

	if (!call->conn->gensec) {
		call->conn->session_info = NULL;

		status = gensec_server_start(call->conn, &call->conn->gensec,
					     call->conn->connection->event.ctx);
		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(1, ("Failed to start GENSEC server code: %s\n", nt_errstr(status)));
			return status;
		}
		
		gensec_set_target_service(call->conn->gensec, "ldap");

		gensec_want_feature(call->conn->gensec, GENSEC_FEATURE_SIGN);
		gensec_want_feature(call->conn->gensec, GENSEC_FEATURE_SEAL);
		

		status = gensec_start_mech_by_sasl_name(call->conn->gensec, req->creds.SASL.mechanism);
		if (!NT_STATUS_IS_OK(status)) {
			DEBUG(1, ("Failed to start GENSEC SASL[%s] server code: %s\n", 
				req->creds.SASL.mechanism, nt_errstr(status)));
			goto reply;
		}
	}

reply:
	reply = ldapsrv_init_reply(call, LDAP_TAG_BindResponse);
	if (!reply) {
		return NT_STATUS_NO_MEMORY;
	}
	resp = &reply->msg->r.BindResponse;
	
	conn = call->conn;

	if (NT_STATUS_IS_OK(status)) {
		status = gensec_update(call->conn->gensec, reply,
				       req->creds.SASL.secblob, &resp->SASL.secblob);
	}

	if (NT_STATUS_EQUAL(NT_STATUS_MORE_PROCESSING_REQUIRED, status)) {
		result = LDAP_SASL_BIND_IN_PROGRESS;
		errstr = NULL;
	} else if (NT_STATUS_IS_OK(status)) {
		result = LDAP_SUCCESS;
		errstr = NULL;
		call->conn->enable_wrap = True;
	} else {
		result = 49;
		errstr = talloc_asprintf(reply, "SASL:[%s]: %s", req->creds.SASL.mechanism, nt_errstr(status));
	}

	resp->response.resultcode = result;
	resp->response.dn = NULL;
	resp->response.errormessage = errstr;
	resp->response.referral = NULL;

	ldapsrv_queue_reply(call, reply);
	return NT_STATUS_OK;
}

NTSTATUS ldapsrv_BindRequest(struct ldapsrv_call *call)
{
	struct ldap_BindRequest *req = &call->request->r.BindRequest;
	struct ldapsrv_reply *reply;
	struct ldap_BindResponse *resp;

	switch (req->mechanism) {
		case LDAP_AUTH_MECH_SIMPLE:
			return ldapsrv_BindSimple(call);
		case LDAP_AUTH_MECH_SASL:
			return ldapsrv_BindSASL(call);
	}

	reply = ldapsrv_init_reply(call, LDAP_TAG_BindResponse);
	if (!reply) {
		return NT_STATUS_NO_MEMORY;
	}

	resp = &reply->msg->r.BindResponse;
	resp->response.resultcode = 7;
	resp->response.dn = NULL;
	resp->response.errormessage = talloc_asprintf(reply, "Bad AuthenticationChoice [%d]", req->mechanism);
	resp->response.referral = NULL;
	resp->SASL.secblob = data_blob(NULL, 0);

	ldapsrv_queue_reply(call, reply);
	return NT_STATUS_OK;
}

NTSTATUS ldapsrv_UnbindRequest(struct ldapsrv_call *call)
{
	DEBUG(10, ("UnbindRequest\n"));
	return NT_STATUS_OK;
}