2 Unix SMB/CIFS implementation.
4 Copyright (C) Stefan Metzmacher 2024
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "lib/param/param.h"
23 #include "../source4/lib/tls/tls.h"
25 void ndr_print_ads_tlswrap_struct(struct ndr_print *ndr, const char *name, const struct ads_tlswrap *r)
27 ndr_print_struct(ndr, name, "tlswrap");
29 ndr_print_ptr(ndr, "mem_ctx", r->mem_ctx);
30 ndr_print_timeval(ndr, "endtime", &r->endtime);
32 ndr_print_ptr(ndr, "sbiod", r->sbiod);
33 ndr_print_ptr(ndr, "tls_params", r->tls_params);
34 ndr_print_ptr(ndr, "tls_sync", r->tls_sync);
41 static int ads_tlswrap_setup(Sockbuf_IO_Desc *sbiod, void *arg)
43 struct ads_tlswrap *wrap = (struct ads_tlswrap *)arg;
47 sbiod->sbiod_pvt = wrap;
52 static int ads_tlswrap_remove(Sockbuf_IO_Desc *sbiod)
54 struct ads_tlswrap *wrap =
55 (struct ads_tlswrap *)sbiod->sbiod_pvt;
62 static ssize_t ads_tlswrap_send_function(gnutls_transport_ptr_t ptr,
63 const uint8_t *buf, size_t size)
65 struct ads_tlswrap *wrap = (struct ads_tlswrap *)ptr;
67 if (wrap->endtime.tv_sec != 0) {
68 if (timeval_expired(&wrap->endtime)) {
74 return LBER_SBIOD_WRITE_NEXT(wrap->sbiod, discard_const(buf), size);
77 static ssize_t ads_tlswrap_recv_function(gnutls_transport_ptr_t ptr,
78 uint8_t *buf, size_t size)
80 struct ads_tlswrap *wrap = (struct ads_tlswrap *)ptr;
82 if (wrap->endtime.tv_sec != 0) {
83 if (timeval_expired(&wrap->endtime)) {
89 return LBER_SBIOD_READ_NEXT(wrap->sbiod, buf, size);
92 static ber_slen_t ads_tlswrap_read(Sockbuf_IO_Desc *sbiod,
93 void *buf, ber_len_t len)
95 struct ads_tlswrap *wrap =
96 (struct ads_tlswrap *)sbiod->sbiod_pvt;
98 return tstream_tls_sync_read(wrap->tls_sync, buf, len);
101 static ber_slen_t ads_tlswrap_write(Sockbuf_IO_Desc *sbiod,
102 void *buf, ber_len_t len)
104 struct ads_tlswrap *wrap =
105 (struct ads_tlswrap *)sbiod->sbiod_pvt;
107 return tstream_tls_sync_write(wrap->tls_sync, buf, len);
110 static int ads_tlswrap_ctrl(Sockbuf_IO_Desc *sbiod, int opt, void *arg)
112 struct ads_tlswrap *wrap =
113 (struct ads_tlswrap *)sbiod->sbiod_pvt;
117 case LBER_SB_OPT_DATA_READY:
118 if (tstream_tls_sync_pending(wrap->tls_sync) > 0) {
122 ret = LBER_SBIOD_CTRL_NEXT(sbiod, opt, arg);
125 ret = LBER_SBIOD_CTRL_NEXT(sbiod, opt, arg);
132 static int ads_tlswrap_close(Sockbuf_IO_Desc *sbiod)
134 struct ads_tlswrap *wrap =
135 (struct ads_tlswrap *)sbiod->sbiod_pvt;
137 TALLOC_FREE(wrap->tls_sync);
138 TALLOC_FREE(wrap->tls_params);
143 static const Sockbuf_IO ads_tlswrap_sockbuf_io = {
144 ads_tlswrap_setup, /* sbi_setup */
145 ads_tlswrap_remove, /* sbi_remove */
146 ads_tlswrap_ctrl, /* sbi_ctrl */
147 ads_tlswrap_read, /* sbi_read */
148 ads_tlswrap_write, /* sbi_write */
149 ads_tlswrap_close /* sbi_close */
152 ADS_STATUS ads_setup_tls_wrapping(struct ads_tlswrap *wrap,
154 const char *server_name)
156 TALLOC_CTX *frame = talloc_stackframe();
157 Sockbuf_IO *io = discard_const_p(Sockbuf_IO, &ads_tlswrap_sockbuf_io);
159 struct loadparm_context *lp_ctx = NULL;
165 rc = ldap_get_option(ld, LDAP_OPT_SOCKBUF, &sb);
166 status = ADS_ERROR_LDAP(rc);
167 if (!ADS_ERR_OK(status)) {
172 lp_ctx = loadparm_init_s3(frame, loadparm_s3_helpers());
173 if (lp_ctx == NULL) {
175 return ADS_ERROR(LDAP_NO_MEMORY);
178 ntstatus = tstream_tls_params_client_lpcfg(wrap->mem_ctx,
182 if (!NT_STATUS_IS_OK(ntstatus)) {
184 return ADS_ERROR_NT(ntstatus);
187 /* setup the real wrapping callbacks */
188 rc = ber_sockbuf_add_io(sb, io, LBER_SBIOD_LEVEL_TRANSPORT, wrap);
189 status = ADS_ERROR_LDAP(rc);
190 if (!ADS_ERR_OK(status)) {
195 to = lpcfg_ldap_connection_timeout(lp_ctx);
196 wrap->endtime = timeval_current_ofs(to, 0);
197 ntstatus = tstream_tls_sync_setup(wrap->tls_params,
199 ads_tlswrap_send_function,
200 ads_tlswrap_recv_function,
203 wrap->endtime = timeval_zero();
204 if (!NT_STATUS_IS_OK(ntstatus)) {
205 ber_sockbuf_remove_io(sb, io, LBER_SBIOD_LEVEL_TRANSPORT);
207 return ADS_ERROR_NT(ntstatus);
214 const DATA_BLOB *ads_tls_channel_bindings(struct ads_tlswrap *wrap)
216 if (wrap->tls_sync == NULL) {
220 return tstream_tls_sync_channel_bindings(wrap->tls_sync);
223 ADS_STATUS ads_setup_tls_wrapping(struct ads_tlswrap *wrap,
225 const char *server_name)
227 return ADS_ERROR_NT(NT_STATUS_NOT_SUPPORTED);
229 const DATA_BLOB *ads_tls_channel_bindings(struct ads_tlswrap *wrap)
233 #endif /* HAVE_ADS */