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Diffstat (limited to '')
-rw-r--r-- | libcli/smb/smb2_lease.c | 102 |
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); +} |