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-rw-r--r--auth/auth_sam_reply.c390
1 files changed, 390 insertions, 0 deletions
diff --git a/auth/auth_sam_reply.c b/auth/auth_sam_reply.c
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--- /dev/null
+++ b/auth/auth_sam_reply.c
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+/*
+ Unix SMB/CIFS implementation.
+
+ Convert a server info struct into the form for PAC and NETLOGON replies
+
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004
+ Copyright (C) Stefan Metzmacher <metze@samba.org> 2005
+
+ 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 "librpc/gen_ndr/auth.h"
+#include "libcli/security/security.h"
+#include "auth/auth_sam_reply.h"
+
+NTSTATUS auth_convert_user_info_dc_sambaseinfo(TALLOC_CTX *mem_ctx,
+ struct auth_user_info_dc *user_info_dc,
+ struct netr_SamBaseInfo **_sam)
+{
+ NTSTATUS status;
+ struct auth_user_info *info;
+ struct netr_SamBaseInfo *sam = talloc_zero(mem_ctx, struct netr_SamBaseInfo);
+ NT_STATUS_HAVE_NO_MEMORY(sam);
+
+ if (user_info_dc->num_sids > PRIMARY_USER_SID_INDEX) {
+ status = dom_sid_split_rid(sam, &user_info_dc->sids[PRIMARY_USER_SID_INDEX],
+ &sam->domain_sid, &sam->rid);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ } else {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (user_info_dc->num_sids > PRIMARY_GROUP_SID_INDEX) {
+ status = dom_sid_split_rid(NULL, &user_info_dc->sids[PRIMARY_GROUP_SID_INDEX],
+ NULL, &sam->primary_gid);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+ } else {
+ /* if we have to encode something like SYSTEM (with no
+ * second SID in the token) then this is the only
+ * choice */
+ sam->primary_gid = sam->rid;
+ }
+
+ info = user_info_dc->info;
+
+ sam->last_logon = info->last_logon;
+ sam->last_logoff = info->last_logoff;
+ sam->acct_expiry = info->acct_expiry;
+ sam->last_password_change = info->last_password_change;
+ sam->allow_password_change = info->allow_password_change;
+ sam->force_password_change = info->force_password_change;
+
+ sam->account_name.string = info->account_name;
+ sam->full_name.string = info->full_name;
+ sam->logon_script.string = info->logon_script;
+ sam->profile_path.string = info->profile_path;
+ sam->home_directory.string = info->home_directory;
+ sam->home_drive.string = info->home_drive;
+
+ sam->logon_count = info->logon_count;
+ sam->bad_password_count = info->bad_password_count;
+ sam->groups.count = 0;
+ sam->groups.rids = NULL;
+
+ if (user_info_dc->num_sids > 2) {
+ size_t i;
+ sam->groups.rids = talloc_array(sam, struct samr_RidWithAttribute,
+ user_info_dc->num_sids);
+
+ if (sam->groups.rids == NULL)
+ return NT_STATUS_NO_MEMORY;
+
+ for (i=2; i<user_info_dc->num_sids; i++) {
+ struct dom_sid *group_sid = &user_info_dc->sids[i];
+ if (!dom_sid_in_domain(sam->domain_sid, group_sid)) {
+ /* We handle this elsewhere */
+ continue;
+ }
+ sam->groups.rids[sam->groups.count].rid =
+ group_sid->sub_auths[group_sid->num_auths-1];
+
+ sam->groups.rids[sam->groups.count].attributes =
+ SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED;
+ sam->groups.count += 1;
+ }
+ }
+
+ sam->user_flags = 0; /* w2k3 uses NETLOGON_EXTRA_SIDS | NETLOGON_NTLMV2_ENABLED */
+ sam->acct_flags = user_info_dc->info->acct_flags;
+ sam->logon_server.string = user_info_dc->info->logon_server;
+ sam->domain.string = user_info_dc->info->domain_name;
+
+ ZERO_STRUCT(sam->unknown);
+
+ ZERO_STRUCT(sam->key);
+ if (user_info_dc->user_session_key.length == sizeof(sam->key.key)) {
+ memcpy(sam->key.key, user_info_dc->user_session_key.data, sizeof(sam->key.key));
+ }
+
+ ZERO_STRUCT(sam->LMSessKey);
+ if (user_info_dc->lm_session_key.length == sizeof(sam->LMSessKey.key)) {
+ memcpy(sam->LMSessKey.key, user_info_dc->lm_session_key.data,
+ sizeof(sam->LMSessKey.key));
+ }
+
+ *_sam = sam;
+
+ return NT_STATUS_OK;
+}
+
+/* Note that the validity of the _sam3 structure is only as long as
+ * the user_info_dc it was generated from */
+NTSTATUS auth_convert_user_info_dc_saminfo3(TALLOC_CTX *mem_ctx,
+ struct auth_user_info_dc *user_info_dc,
+ struct netr_SamInfo3 **_sam3)
+{
+ struct netr_SamBaseInfo *sam;
+ struct netr_SamInfo3 *sam3 = talloc_zero(mem_ctx, struct netr_SamInfo3);
+ NTSTATUS status;
+ size_t i;
+ NT_STATUS_HAVE_NO_MEMORY(sam3);
+
+ status = auth_convert_user_info_dc_sambaseinfo(sam3, user_info_dc, &sam);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(sam3);
+ return status;
+ }
+ sam3->base = *sam;
+ sam3->sidcount = 0;
+ sam3->sids = NULL;
+
+
+ sam3->sids = talloc_array(sam, struct netr_SidAttr,
+ user_info_dc->num_sids);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(sam3->sids, sam3);
+
+ /* We don't put the user and group SIDs in there */
+ for (i=2; i<user_info_dc->num_sids; i++) {
+ if (dom_sid_in_domain(sam->domain_sid, &user_info_dc->sids[i])) {
+ continue;
+ }
+ sam3->sids[sam3->sidcount].sid = dom_sid_dup(sam3->sids, &user_info_dc->sids[i]);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(sam3->sids[sam3->sidcount].sid, sam3);
+ sam3->sids[sam3->sidcount].attributes =
+ SE_GROUP_MANDATORY | SE_GROUP_ENABLED_BY_DEFAULT | SE_GROUP_ENABLED;
+ sam3->sidcount += 1;
+ }
+ if (sam3->sidcount) {
+ sam3->base.user_flags |= NETLOGON_EXTRA_SIDS;
+ } else {
+ sam3->sids = NULL;
+ }
+ *_sam3 = sam3;
+
+ return NT_STATUS_OK;
+}
+
+/**
+ * Make a user_info_dc struct from the info3 returned by a domain logon
+ */
+NTSTATUS make_user_info_dc_netlogon_validation(TALLOC_CTX *mem_ctx,
+ const char *account_name,
+ uint16_t validation_level,
+ union netr_Validation *validation,
+ struct auth_user_info_dc **_user_info_dc)
+{
+ struct auth_user_info_dc *user_info_dc;
+ struct auth_user_info *info;
+ struct netr_SamBaseInfo *base = NULL;
+ uint32_t i;
+
+ switch (validation_level) {
+ case 2:
+ if (!validation || !validation->sam2) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ base = &validation->sam2->base;
+ break;
+ case 3:
+ if (!validation || !validation->sam3) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ base = &validation->sam3->base;
+ break;
+ case 6:
+ if (!validation || !validation->sam6) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ base = &validation->sam6->base;
+ break;
+ default:
+ return NT_STATUS_INVALID_LEVEL;
+ }
+
+ user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
+
+ /*
+ Here is where we should check the list of
+ trusted domains, and verify that the SID
+ matches.
+ */
+ if (!base->domain_sid) {
+ DEBUG(0, ("Cannot operate on a Netlogon Validation without a domain SID"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* The IDL layer would be a better place to check this, but to
+ * guard the integer addition below, we double-check */
+ if (base->groups.count > 65535) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ user_info_dc->num_sids = 2;
+
+ user_info_dc->sids = talloc_array(user_info_dc, struct dom_sid, user_info_dc->num_sids + base->groups.count);
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc->sids);
+
+ user_info_dc->sids[PRIMARY_USER_SID_INDEX] = *base->domain_sid;
+ if (!sid_append_rid(&user_info_dc->sids[PRIMARY_USER_SID_INDEX], base->rid)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ user_info_dc->sids[PRIMARY_GROUP_SID_INDEX] = *base->domain_sid;
+ if (!sid_append_rid(&user_info_dc->sids[PRIMARY_GROUP_SID_INDEX], base->primary_gid)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ for (i = 0; i < base->groups.count; i++) {
+ user_info_dc->sids[user_info_dc->num_sids] = *base->domain_sid;
+ if (!sid_append_rid(&user_info_dc->sids[user_info_dc->num_sids], base->groups.rids[i].rid)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ user_info_dc->num_sids++;
+ }
+
+ /* Copy 'other' sids. We need to do sid filtering here to
+ prevent possible elevation of privileges. See:
+
+ http://www.microsoft.com/windows2000/techinfo/administration/security/sidfilter.asp
+ */
+
+ if (validation_level == 3) {
+ struct dom_sid *dgrps = user_info_dc->sids;
+ size_t sidcount;
+
+ /* The IDL layer would be a better place to check this, but to
+ * guard the integer addition below, we double-check */
+ if (validation->sam3->sidcount > 65535) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ sidcount = user_info_dc->num_sids + validation->sam3->sidcount;
+ if (validation->sam3->sidcount > 0) {
+ dgrps = talloc_realloc(user_info_dc, dgrps, struct dom_sid, sidcount);
+ NT_STATUS_HAVE_NO_MEMORY(dgrps);
+
+ for (i = 0; i < validation->sam3->sidcount; i++) {
+ if (validation->sam3->sids[i].sid) {
+ dgrps[user_info_dc->num_sids] = *validation->sam3->sids[i].sid;
+ user_info_dc->num_sids++;
+ }
+ }
+ }
+
+ user_info_dc->sids = dgrps;
+
+ /* Where are the 'global' sids?... */
+ }
+
+ user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
+
+ if (base->account_name.string) {
+ info->account_name = talloc_reference(info, base->account_name.string);
+ } else {
+ info->account_name = talloc_strdup(info, account_name);
+ NT_STATUS_HAVE_NO_MEMORY(info->account_name);
+ }
+
+ info->domain_name = talloc_reference(info, base->domain.string);
+ info->full_name = talloc_reference(info, base->full_name.string);
+ info->logon_script = talloc_reference(info, base->logon_script.string);
+ info->profile_path = talloc_reference(info, base->profile_path.string);
+ info->home_directory = talloc_reference(info, base->home_directory.string);
+ info->home_drive = talloc_reference(info, base->home_drive.string);
+ info->logon_server = talloc_reference(info, base->logon_server.string);
+ info->last_logon = base->last_logon;
+ info->last_logoff = base->last_logoff;
+ info->acct_expiry = base->acct_expiry;
+ info->last_password_change = base->last_password_change;
+ info->allow_password_change = base->allow_password_change;
+ info->force_password_change = base->force_password_change;
+ info->logon_count = base->logon_count;
+ info->bad_password_count = base->bad_password_count;
+ info->acct_flags = base->acct_flags;
+
+ info->authenticated = true;
+
+ /* ensure we are never given NULL session keys */
+
+ if (all_zero(base->key.key, sizeof(base->key.key))) {
+ user_info_dc->user_session_key = data_blob(NULL, 0);
+ } else {
+ user_info_dc->user_session_key = data_blob_talloc(user_info_dc, base->key.key, sizeof(base->key.key));
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc->user_session_key.data);
+ }
+
+ if (all_zero(base->LMSessKey.key, sizeof(base->LMSessKey.key))) {
+ user_info_dc->lm_session_key = data_blob(NULL, 0);
+ } else {
+ user_info_dc->lm_session_key = data_blob_talloc(user_info_dc, base->LMSessKey.key, sizeof(base->LMSessKey.key));
+ NT_STATUS_HAVE_NO_MEMORY(user_info_dc->lm_session_key.data);
+ }
+
+ *_user_info_dc = user_info_dc;
+ return NT_STATUS_OK;
+}
+
+/**
+ * Make a user_info_dc struct from the PAC_LOGON_INFO supplied in the krb5 logon
+ */
+NTSTATUS make_user_info_dc_pac(TALLOC_CTX *mem_ctx,
+ struct PAC_LOGON_INFO *pac_logon_info,
+ struct auth_user_info_dc **_user_info_dc)
+{
+ uint32_t i;
+ NTSTATUS nt_status;
+ union netr_Validation validation;
+ struct auth_user_info_dc *user_info_dc;
+
+ validation.sam3 = &pac_logon_info->info3;
+
+ nt_status = make_user_info_dc_netlogon_validation(mem_ctx, "", 3, &validation, &user_info_dc);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ if (pac_logon_info->res_groups.count > 0) {
+ size_t sidcount;
+ /* The IDL layer would be a better place to check this, but to
+ * guard the integer addition below, we double-check */
+ if (pac_logon_info->res_groups.count > 65535) {
+ talloc_free(user_info_dc);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /*
+ Here is where we should check the list of
+ trusted domains, and verify that the SID
+ matches.
+ */
+ if (!pac_logon_info->res_group_dom_sid) {
+ DEBUG(0, ("Cannot operate on a PAC without a resource domain SID"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ sidcount = user_info_dc->num_sids + pac_logon_info->res_groups.count;
+ user_info_dc->sids
+ = talloc_realloc(user_info_dc, user_info_dc->sids, struct dom_sid, sidcount);
+ NT_STATUS_HAVE_NO_MEMORY_AND_FREE(user_info_dc->sids, user_info_dc);
+
+ for (i = 0; pac_logon_info->res_group_dom_sid && i < pac_logon_info->res_groups.count; i++) {
+ user_info_dc->sids[user_info_dc->num_sids] = *pac_logon_info->res_group_dom_sid;
+ if (!sid_append_rid(&user_info_dc->sids[user_info_dc->num_sids],
+ pac_logon_info->res_groups.rids[i].rid)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+ user_info_dc->num_sids++;
+ }
+ }
+ *_user_info_dc = user_info_dc;
+ return NT_STATUS_OK;
+}