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authorAndrew Bartlett <abartlet@samba.org>2009-03-27 12:16:17 +1100
committerAndrew Bartlett <abartlet@samba.org>2009-04-14 16:23:43 +1000
commitdf8e1908ef9969ce95a5102959c27491fa7bfa03 (patch)
tree95fe651105ce0269d328cec4518aa80b6047a47d /source3
parent27815a71a99f43a531f27427eeb32ab34b0aa642 (diff)
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Use common samsync delta decryption functions in libnet_samsync.c
Andrew Bartlett
Diffstat (limited to 'source3')
-rw-r--r--source3/libnet/libnet_samsync.c164
1 files changed, 7 insertions, 157 deletions
diff --git a/source3/libnet/libnet_samsync.c b/source3/libnet/libnet_samsync.c
index b89f4efaf5..8928f1c052 100644
--- a/source3/libnet/libnet_samsync.c
+++ b/source3/libnet/libnet_samsync.c
@@ -24,163 +24,16 @@
#include "includes.h"
#include "libnet/libnet.h"
#include "../lib/crypto/crypto.h"
+#include "../libcli/samsync/samsync.h"
#include "../libcli/auth/libcli_auth.h"
/**
- * Decrypt and extract the user's passwords.
- *
- * The writes decrypted (no longer 'RID encrypted' or arcfour encrypted)
- * passwords back into the structure
- */
-
-static NTSTATUS fix_user(TALLOC_CTX *mem_ctx,
- DATA_BLOB *session_key,
- enum netr_SamDatabaseID database_id,
- struct netr_DELTA_ENUM *delta)
-{
-
- uint32_t rid = delta->delta_id_union.rid;
- struct netr_DELTA_USER *user = delta->delta_union.user;
- struct samr_Password lm_hash;
- struct samr_Password nt_hash;
- unsigned char zero_buf[16];
-
- memset(zero_buf, '\0', sizeof(zero_buf));
-
- /* Note that win2000 may send us all zeros
- * for the hashes if it doesn't
- * think this channel is secure enough. */
- if (user->lm_password_present) {
- if (memcmp(user->lmpassword.hash, zero_buf, 16) != 0) {
- sam_rid_crypt(rid, user->lmpassword.hash, lm_hash.hash, 0);
- } else {
- memset(lm_hash.hash, '\0', sizeof(lm_hash.hash));
- }
- user->lmpassword = lm_hash;
- }
-
- if (user->nt_password_present) {
- if (memcmp(user->ntpassword.hash, zero_buf, 16) != 0) {
- sam_rid_crypt(rid, user->ntpassword.hash, nt_hash.hash, 0);
- } else {
- memset(nt_hash.hash, '\0', sizeof(nt_hash.hash));
- }
- user->ntpassword = nt_hash;
- }
-
- if (user->user_private_info.SensitiveData) {
- DATA_BLOB data;
- struct netr_USER_KEYS keys;
- enum ndr_err_code ndr_err;
- data.data = user->user_private_info.SensitiveData;
- data.length = user->user_private_info.DataLength;
- arcfour_crypt_blob(data.data, data.length, session_key);
- user->user_private_info.SensitiveData = data.data;
- user->user_private_info.DataLength = data.length;
-
- ndr_err = ndr_pull_struct_blob(&data, mem_ctx, NULL, &keys,
- (ndr_pull_flags_fn_t)ndr_pull_netr_USER_KEYS);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- dump_data(10, data.data, data.length);
- return ndr_map_error2ntstatus(ndr_err);
- }
-
- /* Note that win2000 may send us all zeros
- * for the hashes if it doesn't
- * think this channel is secure enough. */
- if (keys.keys.keys2.lmpassword.length == 16) {
- if (memcmp(keys.keys.keys2.lmpassword.pwd.hash,
- zero_buf, 16) != 0) {
- sam_rid_crypt(rid,
- keys.keys.keys2.lmpassword.pwd.hash,
- lm_hash.hash, 0);
- } else {
- memset(lm_hash.hash, '\0', sizeof(lm_hash.hash));
- }
- user->lmpassword = lm_hash;
- user->lm_password_present = true;
- }
- if (keys.keys.keys2.ntpassword.length == 16) {
- if (memcmp(keys.keys.keys2.ntpassword.pwd.hash,
- zero_buf, 16) != 0) {
- sam_rid_crypt(rid,
- keys.keys.keys2.ntpassword.pwd.hash,
- nt_hash.hash, 0);
- } else {
- memset(nt_hash.hash, '\0', sizeof(nt_hash.hash));
- }
- user->ntpassword = nt_hash;
- user->nt_password_present = true;
- }
- /* TODO: rid decrypt history fields */
- }
- return NT_STATUS_OK;
-}
-
-/**
- * Decrypt and extract the secrets
- *
- * The writes decrypted secrets back into the structure
- */
-static NTSTATUS fix_secret(TALLOC_CTX *mem_ctx,
- DATA_BLOB *session_key,
- enum netr_SamDatabaseID database_id,
- struct netr_DELTA_ENUM *delta)
-{
- struct netr_DELTA_SECRET *secret = delta->delta_union.secret;
-
- arcfour_crypt_blob(secret->current_cipher.cipher_data,
- secret->current_cipher.maxlen,
- session_key);
-
- arcfour_crypt_blob(secret->old_cipher.cipher_data,
- secret->old_cipher.maxlen,
- session_key);
-
- return NT_STATUS_OK;
-}
-
-/**
- * Fix up the delta, dealing with encryption issues so that the final
- * callback need only do the printing or application logic
- */
-
-static NTSTATUS samsync_fix_delta(TALLOC_CTX *mem_ctx,
- DATA_BLOB *session_key,
- enum netr_SamDatabaseID database_id,
- struct netr_DELTA_ENUM *delta)
-{
- NTSTATUS status = NT_STATUS_OK;
-
- switch (delta->delta_type) {
- case NETR_DELTA_USER:
-
- status = fix_user(mem_ctx,
- session_key,
- database_id,
- delta);
- break;
- case NETR_DELTA_SECRET:
-
- status = fix_secret(mem_ctx,
- session_key,
- database_id,
- delta);
- break;
- default:
- break;
- }
-
- return status;
-}
-
-/**
* Fix up the delta, dealing with encryption issues so that the final
* callback need only do the printing or application logic
*/
static NTSTATUS samsync_fix_delta_array(TALLOC_CTX *mem_ctx,
- DATA_BLOB *session_key,
+ struct creds_CredentialState *creds,
enum netr_SamDatabaseID database_id,
struct netr_DELTA_ENUM_ARRAY *r)
{
@@ -190,7 +43,7 @@ static NTSTATUS samsync_fix_delta_array(TALLOC_CTX *mem_ctx,
for (i = 0; i < r->num_deltas; i++) {
status = samsync_fix_delta(mem_ctx,
- session_key,
+ creds,
database_id,
&r->delta_enum[i]);
if (!NT_STATUS_IS_OK(status)) {
@@ -347,14 +200,13 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx,
struct netr_Authenticator return_authenticator;
uint16_t restart_state = 0;
uint32_t sync_context = 0;
- DATA_BLOB session_key;
ZERO_STRUCT(return_authenticator);
do {
struct netr_DELTA_ENUM_ARRAY *delta_enum_array = NULL;
- netlogon_creds_client_step(ctx->cli->dc, &credential);
+ creds_client_authenticator(ctx->cli->dc, &credential);
if (ctx->single_object_replication &&
!ctx->force_full_replication) {
@@ -395,8 +247,8 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx,
}
/* Check returned credentials. */
- if (!netlogon_creds_client_check(ctx->cli->dc,
- &return_authenticator.cred)) {
+ if (!creds_client_check(ctx->cli->dc,
+ &return_authenticator.cred)) {
DEBUG(0,("credentials chain check failed\n"));
return NT_STATUS_ACCESS_DENIED;
}
@@ -405,10 +257,8 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx,
break;
}
- session_key = data_blob_const(ctx->cli->dc->sess_key, 16);
-
samsync_fix_delta_array(mem_ctx,
- &session_key,
+ ctx->cli->dc,
database_id,
delta_enum_array);