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-rw-r--r--libcli/smb/smb2_lease.c102
1 files changed, 102 insertions, 0 deletions
diff --git a/libcli/smb/smb2_lease.c b/libcli/smb/smb2_lease.c
new file mode 100644
index 0000000..fc641ff
--- /dev/null
+++ b/libcli/smb/smb2_lease.c
@@ -0,0 +1,102 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ SMB2 Lease context handling
+
+ Copyright (C) Stefan Metzmacher 2012
+ Copyright (C) Volker Lendecke 2013
+
+ 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "../libcli/smb/smb_common.h"
+
+ssize_t smb2_lease_pull(const uint8_t *buf, size_t len,
+ struct smb2_lease *lease)
+{
+ int version;
+
+ switch (len) {
+ case 32:
+ version = 1;
+ break;
+ case 52:
+ version = 2;
+ break;
+ default:
+ return -1;
+ }
+
+ memcpy(&lease->lease_key, buf, 16);
+ lease->lease_state = IVAL(buf, 16);
+ lease->lease_flags = IVAL(buf, 20);
+ lease->lease_duration = BVAL(buf, 24);
+ lease->lease_version = version;
+
+ switch (version) {
+ case 1:
+ ZERO_STRUCT(lease->parent_lease_key);
+ lease->lease_epoch = 0;
+ break;
+ case 2:
+ memcpy(&lease->parent_lease_key, buf+32, 16);
+ lease->lease_epoch = SVAL(buf, 48);
+ break;
+ }
+
+ return len;
+}
+
+bool smb2_lease_push(const struct smb2_lease *lease, uint8_t *buf, size_t len)
+{
+ int version;
+
+ switch (len) {
+ case 32:
+ version = 1;
+ break;
+ case 52:
+ version = 2;
+ break;
+ default:
+ return false;
+ }
+
+ memcpy(&buf[0], &lease->lease_key, 16);
+ SIVAL(buf, 16, lease->lease_state);
+ SIVAL(buf, 20, lease->lease_flags);
+ SBVAL(buf, 24, lease->lease_duration);
+
+ if (version == 2) {
+ memcpy(&buf[32], &lease->parent_lease_key, 16);
+ SIVAL(buf, 48, lease->lease_epoch);
+ }
+
+ return true;
+}
+
+bool smb2_lease_key_equal(const struct smb2_lease_key *k1,
+ const struct smb2_lease_key *k2)
+{
+ return ((k1->data[0] == k2->data[0]) && (k1->data[1] == k2->data[1]));
+}
+
+bool smb2_lease_equal(const struct GUID *g1,
+ const struct smb2_lease_key *k1,
+ const struct GUID *g2,
+ const struct smb2_lease_key *k2)
+{
+ return GUID_equal(g1, g2) && smb2_lease_key_equal(k1, k2);
+}