-/*
+/*
Unix SMB/CIFS implementation.
kerberos authorization data (PAC) utility library
- Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
+ Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
Copyright (C) Andrew Tridgell 2001
Copyright (C) Luke Howard 2002-2003
Copyright (C) Stefan Metzmacher 2004-2005
Copyright (C) Guenther Deschner 2005,2007
-
+
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/>.
*/
#ifdef HAVE_KRB5
-static bool pac_io_logon_name(const char *desc, PAC_LOGON_NAME *logon_name,
- prs_struct *ps, int depth)
-{
- if (NULL == logon_name)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_logon_name");
- depth++;
-
- if (!smb_io_time("logon_time", &logon_name->logon_time, ps, depth))
- return False;
-
- if (!prs_uint16("len", ps, depth, &logon_name->len))
- return False;
-
- /* The following string is always in little endian 16 bit values,
- copy as 8 bits to avoid endian reversal on big-endian machines.
- len is the length in bytes. */
-
- if (UNMARSHALLING(ps) && logon_name->len) {
- logon_name->username = PRS_ALLOC_MEM(ps, uint8, logon_name->len);
- if (!logon_name->username) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- }
-
- if (!prs_uint8s(True, "name", ps, depth, logon_name->username, logon_name->len))
- return False;
-
- return True;
-}
-
-#if 0 /* Unused (handled now in net_io_user_info3()) - Guenther */
-static bool pac_io_krb_sids(const char *desc, KRB_SID_AND_ATTRS *sid_and_attr,
- prs_struct *ps, int depth)
-{
- if (NULL == sid_and_attr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_krb_sids");
- depth++;
-
- if (UNMARSHALLING(ps)) {
- sid_and_attr->sid = PRS_ALLOC_MEM(ps, DOM_SID2, 1);
- if (!sid_and_attr->sid) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- }
-
- if(!smb_io_dom_sid2("sid", sid_and_attr->sid, ps, depth))
- return False;
-
- return True;
-}
-
-
-static bool pac_io_krb_attrs(const char *desc, KRB_SID_AND_ATTRS *sid_and_attr,
- prs_struct *ps, int depth)
-{
- if (NULL == sid_and_attr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_krb_attrs");
- depth++;
-
- if (!prs_uint32("sid_ptr", ps, depth, &sid_and_attr->sid_ptr))
- return False;
- if (!prs_uint32("attrs", ps, depth, &sid_and_attr->attrs))
- return False;
-
- return True;
-}
-
-static bool pac_io_krb_sid_and_attr_array(const char *desc,
- KRB_SID_AND_ATTR_ARRAY *array,
- uint32 num,
- prs_struct *ps, int depth)
-{
- int i;
-
- if (NULL == array)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_krb_sid_and_attr_array");
- depth++;
-
-
- if (!prs_uint32("count", ps, depth, &array->count))
- return False;
-
- if (UNMARSHALLING(ps)) {
- if (num) {
- array->krb_sid_and_attrs = PRS_ALLOC_MEM(ps, KRB_SID_AND_ATTRS, num);
- if (!array->krb_sid_and_attrs) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- } else {
- array->krb_sid_and_attrs = NULL;
- }
- }
-
- for (i=0; i<num; i++) {
- if (!pac_io_krb_attrs(desc,
- &array->krb_sid_and_attrs[i],
- ps, depth))
- return False;
-
- }
- for (i=0; i<num; i++) {
- if (!pac_io_krb_sids(desc,
- &array->krb_sid_and_attrs[i],
- ps, depth))
- return False;
-
- }
-
- return True;
-
-}
-#endif
-
-static bool pac_io_group_membership(const char *desc,
- GROUP_MEMBERSHIP *membership,
- prs_struct *ps, int depth)
-{
- if (NULL == membership)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_group_membership");
- depth++;
-
- if (!prs_uint32("rid", ps, depth, &membership->rid))
- return False;
- if (!prs_uint32("attrs", ps, depth, &membership->attrs))
- return False;
-
- return True;
-}
-
-
-static bool pac_io_group_membership_array(const char *desc,
- GROUP_MEMBERSHIP_ARRAY *array,
- uint32 num,
- prs_struct *ps, int depth)
-{
- int i;
-
- if (NULL == array)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_group_membership_array");
- depth++;
-
-
- if (!prs_uint32("count", ps, depth, &array->count))
- return False;
-
- if (UNMARSHALLING(ps)) {
- if (num) {
- array->group_membership = PRS_ALLOC_MEM(ps, GROUP_MEMBERSHIP, num);
- if (!array->group_membership) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- } else {
- array->group_membership = NULL;
- }
- }
-
- for (i=0; i<num; i++) {
- if (!pac_io_group_membership(desc,
- &array->group_membership[i],
- ps, depth))
- return False;
-
- }
-
- return True;
-
-}
-
-#if 0 /* Unused, replaced using an expanded net_io_user_info3() now - Guenther */
-static bool pac_io_pac_logon_info(const char *desc, PAC_LOGON_INFO *info,
- prs_struct *ps, int depth)
-{
- uint32 garbage = 0, i;
-
- if (NULL == info)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_logon_info");
- depth++;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("unknown", ps, depth, &garbage)) /* 00081001 */
- return False;
- if (!prs_uint32("unknown", ps, depth, &garbage)) /* cccccccc */
- return False;
- if (!prs_uint32("bufferlen", ps, depth, &garbage))
- return False;
- if (!prs_uint32("bufferlenhi", ps, depth, &garbage)) /* 00000000 */
- return False;
-
- if (!prs_uint32("pointer", ps, depth, &garbage))
- return False;
-
- if (!prs_align(ps))
- return False;
- if (!smb_io_time("logon_time", &info->logon_time, ps, depth))
- return False;
- if (!smb_io_time("logoff_time", &info->logoff_time, ps, depth))
- return False;
- if (!smb_io_time("kickoff_time", &info->kickoff_time, ps, depth))
- return False;
- if (!smb_io_time("pass_last_set_time", &info->pass_last_set_time,
- ps, depth))
- return False;
- if (!smb_io_time("pass_can_change_time", &info->pass_can_change_time,
- ps, depth))
- return False;
- if (!smb_io_time("pass_must_change_time", &info->pass_must_change_time,
- ps, depth))
- return False;
-
- if (!smb_io_unihdr("hdr_user_name", &info->hdr_user_name, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_full_name", &info->hdr_full_name, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_logon_script", &info->hdr_logon_script,
- ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_profile_path", &info->hdr_profile_path,
- ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_home_dir", &info->hdr_home_dir, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_dir_drive", &info->hdr_dir_drive, ps, depth))
- return False;
-
- if (!prs_uint16("logon_count", ps, depth, &info->logon_count))
- return False;
- if (!prs_uint16("bad_password_count", ps, depth, &info->bad_password_count))
- return False;
- if (!prs_uint32("user_rid", ps, depth, &info->user_rid))
- return False;
- if (!prs_uint32("group_rid", ps, depth, &info->group_rid))
- return False;
- if (!prs_uint32("group_count", ps, depth, &info->group_count))
- return False;
- /* I haven't seen this contain anything yet, but when it does
- we will have to make sure we decode the contents in the middle
- all the unistr2s ... */
- if (!prs_uint32("group_mem_ptr", ps, depth,
- &info->group_membership_ptr))
- return False;
- if (!prs_uint32("user_flags", ps, depth, &info->user_flags))
- return False;
-
- if (!prs_uint8s(False, "session_key", ps, depth, info->session_key, 16))
- return False;
-
- if (!smb_io_unihdr("hdr_dom_controller",
- &info->hdr_dom_controller, ps, depth))
- return False;
- if (!smb_io_unihdr("hdr_dom_name", &info->hdr_dom_name, ps, depth))
- return False;
-
- /* this should be followed, but just get ptr for now */
- if (!prs_uint32("ptr_dom_sid", ps, depth, &info->ptr_dom_sid))
- return False;
-
- if (!prs_uint8s(False, "lm_session_key", ps, depth, info->lm_session_key, 8))
- return False;
-
- if (!prs_uint32("acct_flags", ps, depth, &info->acct_flags))
- return False;
-
- for (i = 0; i < 7; i++)
- {
- if (!prs_uint32("unkown", ps, depth, &info->unknown[i])) /* unknown */
- return False;
- }
-
- if (!prs_uint32("sid_count", ps, depth, &info->sid_count))
- return False;
- if (!prs_uint32("ptr_extra_sids", ps, depth, &info->ptr_extra_sids))
- return False;
- if (!prs_uint32("ptr_res_group_dom_sid", ps, depth,
- &info->ptr_res_group_dom_sid))
- return False;
- if (!prs_uint32("res_group_count", ps, depth, &info->res_group_count))
- return False;
- if (!prs_uint32("ptr_res_groups", ps, depth, &info->ptr_res_groups))
- return False;
-
- if(!smb_io_unistr2("uni_user_name", &info->uni_user_name,
- info->hdr_user_name.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_full_name", &info->uni_full_name,
- info->hdr_full_name.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_logon_script", &info->uni_logon_script,
- info->hdr_logon_script.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_profile_path", &info->uni_profile_path,
- info->hdr_profile_path.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_home_dir", &info->uni_home_dir,
- info->hdr_home_dir.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_dir_drive", &info->uni_dir_drive,
- info->hdr_dir_drive.buffer, ps, depth))
- return False;
-
- if (info->group_membership_ptr) {
- if (!pac_io_group_membership_array("group membership",
- &info->groups,
- info->group_count,
- ps, depth))
- return False;
- }
-
-
- if(!smb_io_unistr2("uni_dom_controller", &info->uni_dom_controller,
- info->hdr_dom_controller.buffer, ps, depth))
- return False;
- if(!smb_io_unistr2("uni_dom_name", &info->uni_dom_name,
- info->hdr_dom_name.buffer, ps, depth))
- return False;
-
- if(info->ptr_dom_sid)
- if(!smb_io_dom_sid2("dom_sid", &info->dom_sid, ps, depth))
- return False;
-
-
- if (info->sid_count && info->ptr_extra_sids)
- if (!pac_io_krb_sid_and_attr_array("extra_sids",
- &info->extra_sids,
- info->sid_count,
- ps, depth))
- return False;
-
- if (info->ptr_res_group_dom_sid)
- if (!smb_io_dom_sid2("res_group_dom_sid",
- &info->res_group_dom_sid, ps, depth))
- return False;
-
- if (info->ptr_res_groups) {
-
- if (!(info->user_flgs & LOGON_RESOURCE_GROUPS)) {
- DEBUG(0,("user_flgs attribute does not have LOGON_RESOURCE_GROUPS\n"));
- /* return False; */
- }
-
- if (!pac_io_group_membership_array("res group membership",
- &info->res_groups,
- info->res_group_count,
- ps, depth))
- return False;
- }
-
- return True;
-}
-#endif
-
-static bool pac_io_pac_logon_info(const char *desc, PAC_LOGON_INFO *info,
- prs_struct *ps, int depth)
-{
- uint32 garbage = 0;
- bool kerb_validation_info = True;
-
- if (NULL == info)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_logon_info");
- depth++;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("unknown", ps, depth, &garbage)) /* 00081001 */
- return False;
- if (!prs_uint32("unknown", ps, depth, &garbage)) /* cccccccc */
- return False;
- if (!prs_uint32("bufferlen", ps, depth, &garbage))
- return False;
- if (!prs_uint32("bufferlenhi", ps, depth, &garbage)) /* 00000000 */
- return False;
-
- if(!net_io_user_info3("", &info->info3, ps, depth, 3, kerb_validation_info))
- return False;
-
- if (info->info3.ptr_res_group_dom_sid) {
- if (!smb_io_dom_sid2("res_group_dom_sid",
- &info->res_group_dom_sid, ps, depth))
- return False;
- }
-
- if (info->info3.ptr_res_groups) {
-
- if (!(info->info3.user_flgs & NETLOGON_RESOURCE_GROUPS)) {
- DEBUG(0,("user_flgs attribute does not have NETLOGON_RESOURCE_GROUPS\n"));
- /* return False; */
- }
-
- if (!pac_io_group_membership_array("res group membership",
- &info->res_groups,
- info->info3.res_group_count,
- ps, depth))
- return False;
- }
-
- return True;
-}
-
-
-
-static bool pac_io_pac_signature_data(const char *desc,
- PAC_SIGNATURE_DATA *data, uint32 length,
- prs_struct *ps, int depth)
-{
- uint32 siglen = 0;
-
- prs_debug(ps, depth, desc, "pac_io_pac_signature_data");
- depth++;
-
- if (data == NULL)
- return False;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("type", ps, depth, &data->type))
- return False;
-
- if ( length > sizeof(uint32) )
- siglen = length - sizeof(uint32);
-
- if (UNMARSHALLING(ps) && length) {
- if (siglen) {
- data->signature.buffer = PRS_ALLOC_MEM(ps, uint8, siglen);
- if (!data->signature.buffer) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- } else {
- data->signature.buffer = NULL;
- }
- }
-
- data->signature.buf_len = siglen;
-
- if (!prs_uint8s(False, "signature", ps, depth, data->signature.buffer, data->signature.buf_len))
- return False;
-
-
- return True;
-}
-
-static bool pac_io_pac_info_hdr_ctr(const char *desc, PAC_BUFFER *hdr,
- prs_struct *ps, int depth)
-{
- if (NULL == hdr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_info_hdr_ctr");
- depth++;
-
- if (!prs_align(ps))
- return False;
-
- if (hdr->offset != prs_offset(ps)) {
- DEBUG(5,("offset in header(x%x) and data(x%x) do not match, correcting\n",
- hdr->offset, prs_offset(ps)));
- prs_set_offset(ps, hdr->offset);
- }
-
- if (UNMARSHALLING(ps) && hdr->size > 0) {
- hdr->ctr = PRS_ALLOC_MEM(ps, PAC_INFO_CTR, 1);
- if (!hdr->ctr) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- }
-
- switch(hdr->type) {
- case PAC_TYPE_LOGON_INFO:
- DEBUG(5, ("PAC_TYPE_LOGON_INFO\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.logon_info = PRS_ALLOC_MEM(ps, PAC_LOGON_INFO, 1);
- if (!hdr->ctr->pac.logon_info) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_pac_logon_info(desc, hdr->ctr->pac.logon_info,
- ps, depth))
- return False;
- break;
-
- case PAC_TYPE_SERVER_CHECKSUM:
- DEBUG(5, ("PAC_TYPE_SERVER_CHECKSUM\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.srv_cksum = PRS_ALLOC_MEM(ps, PAC_SIGNATURE_DATA, 1);
- if (!hdr->ctr->pac.srv_cksum) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_pac_signature_data(desc, hdr->ctr->pac.srv_cksum,
- hdr->size, ps, depth))
- return False;
- break;
-
- case PAC_TYPE_PRIVSVR_CHECKSUM:
- DEBUG(5, ("PAC_TYPE_PRIVSVR_CHECKSUM\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.privsrv_cksum = PRS_ALLOC_MEM(ps, PAC_SIGNATURE_DATA, 1);
- if (!hdr->ctr->pac.privsrv_cksum) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_pac_signature_data(desc,
- hdr->ctr->pac.privsrv_cksum,
- hdr->size, ps, depth))
- return False;
- break;
-
- case PAC_TYPE_LOGON_NAME:
- DEBUG(5, ("PAC_TYPE_LOGON_NAME\n"));
- if (UNMARSHALLING(ps))
- hdr->ctr->pac.logon_name = PRS_ALLOC_MEM(ps, PAC_LOGON_NAME, 1);
- if (!hdr->ctr->pac.logon_name) {
- DEBUG(3, ("No memory available\n"));
- return False;
- }
- if (!pac_io_logon_name(desc, hdr->ctr->pac.logon_name,
- ps, depth))
- return False;
- break;
-
- default:
- /* dont' know, so we need to skip it */
- DEBUG(3, ("unknown PAC type %d\n", hdr->type));
- prs_set_offset(ps, prs_offset(ps) + hdr->size);
- }
-
-#if 0
- /* obscure pad */
- if (!prs_uint32("pad", ps, depth, &hdr->pad))
- return False;
-#endif
- return True;
-}
-
-static bool pac_io_pac_info_hdr(const char *desc, PAC_BUFFER *hdr,
- prs_struct *ps, int depth)
-{
- if (NULL == hdr)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_info_hdr");
- depth++;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("type", ps, depth, &hdr->type))
- return False;
- if (!prs_uint32("size", ps, depth, &hdr->size))
- return False;
- if (!prs_uint32("offset", ps, depth, &hdr->offset))
- return False;
- if (!prs_uint32("offsethi", ps, depth, &hdr->offsethi))
- return False;
-
- return True;
-}
-
-static bool pac_io_pac_data(const char *desc, PAC_DATA *data,
- prs_struct *ps, int depth)
-{
- int i;
-
- if (NULL == data)
- return False;
-
- prs_debug(ps, depth, desc, "pac_io_pac_data");
- depth++;
-
- if (!prs_align(ps))
- return False;
- if (!prs_uint32("num_buffers", ps, depth, &data->num_buffers))
- return False;
- if (!prs_uint32("version", ps, depth, &data->version))
- return False;
-
- if (UNMARSHALLING(ps) && data->num_buffers > 0) {
- if ((data->pac_buffer = PRS_ALLOC_MEM(ps, PAC_BUFFER, data->num_buffers)) == NULL) {
- return False;
- }
- }
-
- for (i=0; i<data->num_buffers; i++) {
- if (!pac_io_pac_info_hdr(desc, &data->pac_buffer[i], ps,
- depth))
- return False;
- }
-
- for (i=0; i<data->num_buffers; i++) {
- if (!pac_io_pac_info_hdr_ctr(desc, &data->pac_buffer[i],
- ps, depth))
- return False;
- }
-
- return True;
-}
+/****************************************************************
+****************************************************************/
static krb5_error_code check_pac_checksum(TALLOC_CTX *mem_ctx,
DATA_BLOB pac_data,
git.samba.org / gd / samba / .git / commitdiff