-/*
+/*
Unix SMB/CIFS implementation.
samr server password set/change handling
Copyright (C) Andrew Tridgell 2004
Copyright (C) Andrew Bartlett <abartlet@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 "rpc_server/dcerpc_server.h"
-#include "rpc_server/common/common.h"
#include "rpc_server/samr/dcesrv_samr.h"
#include "system/time.h"
-#include "lib/crypto/crypto.h"
-#include "dsdb/common/flags.h"
-#include "libcli/ldap/ldap.h"
+#include "../lib/crypto/crypto.h"
#include "dsdb/samdb/samdb.h"
#include "auth/auth.h"
-#include "rpc_server/samr/proto.h"
#include "libcli/auth/libcli_auth.h"
-#include "util/util_ldb.h"
-#include "param/param.h"
+#include "../lib/util/util_ldb.h"
+#include "rpc_server/samr/proto.h"
-/*
- samr_ChangePasswordUser
+/*
+ samr_ChangePasswordUser
*/
-NTSTATUS dcesrv_samr_ChangePasswordUser(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_ChangePasswordUser *r)
+NTSTATUS dcesrv_samr_ChangePasswordUser(struct dcesrv_call_state *dce_call,
+ TALLOC_CTX *mem_ctx,
+ struct samr_ChangePasswordUser *r)
{
struct dcesrv_handle *h;
struct samr_account_state *a_state;
struct ldb_context *sam_ctx;
- struct ldb_message **res, *msg;
+ struct ldb_message **res;
int ret;
struct samr_Password new_lmPwdHash, new_ntPwdHash, checkHash;
struct samr_Password *lm_pwd, *nt_pwd;
return NT_STATUS_INVALID_PARAMETER_MIX;
}
- /* To change a password we need to open as system */
- sam_ctx = samdb_connect(mem_ctx, global_loadparm, system_session(mem_ctx, global_loadparm));
+ /* Connect to a SAMDB with system privileges for fetching the old pw
+ * hashes. */
+ sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ system_session(dce_call->conn->dce_ctx->lp_ctx), 0);
if (sam_ctx == NULL) {
return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
- ret = ldb_transaction_start(sam_ctx);
- if (ret) {
- DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(sam_ctx)));
- return NT_STATUS_TRANSACTION_ABORTED;
- }
-
/* fetch the old hashes */
ret = gendb_search_dn(sam_ctx, mem_ctx,
a_state->account_dn, &res, attrs);
if (ret != 1) {
- ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
- msg = res[0];
- status = samdb_result_passwords(mem_ctx, msg, &lm_pwd, &nt_pwd);
- if (!NT_STATUS_IS_OK(status) || !lm_pwd || !nt_pwd) {
- ldb_transaction_cancel(sam_ctx);
+ status = samdb_result_passwords(mem_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ res[0], &lm_pwd, &nt_pwd);
+ if (!NT_STATUS_IS_OK(status) || !nt_pwd) {
return NT_STATUS_WRONG_PASSWORD;
}
/* decrypt and check the new lm hash */
- D_P16(lm_pwd->hash, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
- D_P16(new_lmPwdHash.hash, r->in.old_lm_crypted->hash, checkHash.hash);
- if (memcmp(checkHash.hash, lm_pwd, 16) != 0) {
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_WRONG_PASSWORD;
+ if (lm_pwd) {
+ D_P16(lm_pwd->hash, r->in.new_lm_crypted->hash, new_lmPwdHash.hash);
+ D_P16(new_lmPwdHash.hash, r->in.old_lm_crypted->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, lm_pwd, 16) != 0) {
+ return NT_STATUS_WRONG_PASSWORD;
+ }
}
/* decrypt and check the new nt hash */
D_P16(nt_pwd->hash, r->in.new_nt_crypted->hash, new_ntPwdHash.hash);
D_P16(new_ntPwdHash.hash, r->in.old_nt_crypted->hash, checkHash.hash);
if (memcmp(checkHash.hash, nt_pwd, 16) != 0) {
- ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
-
+
/* The NT Cross is not required by Win2k3 R2, but if present
check the nt cross hash */
- if (r->in.cross1_present && r->in.nt_cross) {
+ if (r->in.cross1_present && r->in.nt_cross && lm_pwd) {
D_P16(lm_pwd->hash, r->in.nt_cross->hash, checkHash.hash);
if (memcmp(checkHash.hash, new_ntPwdHash.hash, 16) != 0) {
- ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
}
/* The LM Cross is not required by Win2k3 R2, but if present
check the lm cross hash */
- if (r->in.cross2_present && r->in.lm_cross) {
+ if (r->in.cross2_present && r->in.lm_cross && lm_pwd) {
D_P16(nt_pwd->hash, r->in.lm_cross->hash, checkHash.hash);
if (memcmp(checkHash.hash, new_lmPwdHash.hash, 16) != 0) {
- ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
}
- msg = ldb_msg_new(mem_ctx);
- if (msg == NULL) {
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_NO_MEMORY;
+ /* Start a SAM with user privileges for the password change */
+ sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ dce_call->conn->auth_state.session_info, 0);
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
- msg->dn = ldb_dn_copy(msg, a_state->account_dn);
- if (!msg->dn) {
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_NO_MEMORY;
+ /* Start transaction */
+ ret = ldb_transaction_start(sam_ctx);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(sam_ctx)));
+ return NT_STATUS_TRANSACTION_ABORTED;
}
- /* setup password modify mods on the user DN specified. This may fail
- * due to password policies. */
+ /* Performs the password modification. We pass the old hashes read out
+ * from the database since they were already checked against the user-
+ * provided ones. */
status = samdb_set_password(sam_ctx, mem_ctx,
- a_state->account_dn, a_state->domain_state->domain_dn,
- msg, NULL, &new_lmPwdHash, &new_ntPwdHash,
- true, /* this is a user password change */
+ a_state->account_dn,
+ a_state->domain_state->domain_dn,
+ NULL, &new_lmPwdHash, &new_ntPwdHash,
+ lm_pwd, nt_pwd, /* this is a user password change */
NULL,
NULL);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
- /* The above call only setup the modifications, this actually
- * makes the write to the database. */
- ret = samdb_replace(sam_ctx, mem_ctx, msg);
- if (ret != 0) {
- DEBUG(2,("Failed to modify record to change password on %s: %s\n",
- ldb_dn_get_linearized(a_state->account_dn),
- ldb_errstring(sam_ctx)));
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
/* And this confirms it in a transaction commit */
ret = ldb_transaction_commit(sam_ctx);
- if (ret != 0) {
+ if (ret != LDB_SUCCESS) {
DEBUG(1,("Failed to commit transaction to change password on %s: %s\n",
ldb_dn_get_linearized(a_state->account_dn),
ldb_errstring(sam_ctx)));
return NT_STATUS_OK;
}
-/*
- samr_OemChangePasswordUser2
+/*
+ samr_OemChangePasswordUser2
*/
-NTSTATUS dcesrv_samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_OemChangePasswordUser2 *r)
+NTSTATUS dcesrv_samr_OemChangePasswordUser2(struct dcesrv_call_state *dce_call,
+ TALLOC_CTX *mem_ctx,
+ struct samr_OemChangePasswordUser2 *r)
{
NTSTATUS status;
- char new_pass[512];
- uint32_t new_pass_len;
+ DATA_BLOB new_password, new_unicode_password;
+ char *new_pass;
struct samr_CryptPassword *pwbuf = r->in.password;
struct ldb_context *sam_ctx;
struct ldb_dn *user_dn;
int ret;
- struct ldb_message **res, *mod;
+ struct ldb_message **res;
const char * const attrs[] = { "objectSid", "dBCSPwd", NULL };
struct samr_Password *lm_pwd;
DATA_BLOB lm_pwd_blob;
uint8_t new_lm_hash[16];
struct samr_Password lm_verifier;
+ size_t unicode_pw_len;
+ size_t converted_size = 0;
if (pwbuf == NULL) {
return NT_STATUS_INVALID_PARAMETER;
return NT_STATUS_INVALID_PARAMETER;
}
- /* To change a password we need to open as system */
- sam_ctx = samdb_connect(mem_ctx, global_loadparm, system_session(mem_ctx, global_loadparm));
- if (sam_ctx == NULL) {
- return NT_STATUS_INVALID_SYSTEM_SERVICE;
+ /* this call can only work with lanman auth */
+ if (!lpcfg_lanman_auth(dce_call->conn->dce_ctx->lp_ctx)) {
+ return NT_STATUS_WRONG_PASSWORD;
}
- ret = ldb_transaction_start(sam_ctx);
- if (ret) {
- DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(sam_ctx)));
- return NT_STATUS_TRANSACTION_ABORTED;
+ /* Connect to a SAMDB with system privileges for fetching the old pw
+ * hashes. */
+ sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ system_session(dce_call->conn->dce_ctx->lp_ctx), 0);
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
/* we need the users dn and the domain dn (derived from the
user SID). We also need the current lm password hash in
order to decrypt the incoming password */
- ret = gendb_search(sam_ctx,
+ ret = gendb_search(sam_ctx,
mem_ctx, NULL, &res, attrs,
"(&(sAMAccountName=%s)(objectclass=user))",
r->in.account->string);
if (ret != 1) {
- ldb_transaction_cancel(sam_ctx);
/* Don't give the game away: (don't allow anonymous users to prove the existance of usernames) */
return NT_STATUS_WRONG_PASSWORD;
}
user_dn = res[0]->dn;
- status = samdb_result_passwords(mem_ctx, res[0], &lm_pwd, NULL);
+ status = samdb_result_passwords(mem_ctx, dce_call->conn->dce_ctx->lp_ctx,
+ res[0], &lm_pwd, NULL);
if (!NT_STATUS_IS_OK(status) || !lm_pwd) {
- ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
/* decrypt the password we have been given */
- lm_pwd_blob = data_blob(lm_pwd->hash, sizeof(lm_pwd->hash));
+ lm_pwd_blob = data_blob(lm_pwd->hash, sizeof(lm_pwd->hash));
arcfour_crypt_blob(pwbuf->data, 516, &lm_pwd_blob);
data_blob_free(&lm_pwd_blob);
-
- if (!decode_pw_buffer(pwbuf->data, new_pass, sizeof(new_pass),
- &new_pass_len, STR_ASCII)) {
- ldb_transaction_cancel(sam_ctx);
+
+ if (!extract_pw_from_buffer(mem_ctx, pwbuf->data, &new_password)) {
DEBUG(3,("samr: failed to decode password buffer\n"));
return NT_STATUS_WRONG_PASSWORD;
}
- /* check LM verifier */
- if (lm_pwd == NULL) {
- ldb_transaction_cancel(sam_ctx);
+ if (!convert_string_talloc_handle(mem_ctx, lpcfg_iconv_handle(dce_call->conn->dce_ctx->lp_ctx),
+ CH_DOS, CH_UNIX,
+ (const char *)new_password.data,
+ new_password.length,
+ (void **)&new_pass, &converted_size)) {
+ DEBUG(3,("samr: failed to convert incoming password buffer to unix charset\n"));
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ if (!convert_string_talloc_handle(mem_ctx, lpcfg_iconv_handle(dce_call->conn->dce_ctx->lp_ctx),
+ CH_DOS, CH_UTF16,
+ (const char *)new_password.data,
+ new_password.length,
+ (void **)&new_unicode_password.data, &unicode_pw_len)) {
+ DEBUG(3,("samr: failed to convert incoming password buffer to UTF16 charset\n"));
return NT_STATUS_WRONG_PASSWORD;
}
+ new_unicode_password.length = unicode_pw_len;
E_deshash(new_pass, new_lm_hash);
E_old_pw_hash(new_lm_hash, lm_pwd->hash, lm_verifier.hash);
if (memcmp(lm_verifier.hash, r->in.hash->hash, 16) != 0) {
- ldb_transaction_cancel(sam_ctx);
return NT_STATUS_WRONG_PASSWORD;
}
- mod = ldb_msg_new(mem_ctx);
- if (mod == NULL) {
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_NO_MEMORY;
+ /* Connect to a SAMDB with user privileges for the password change */
+ sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ dce_call->conn->auth_state.session_info, 0);
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
- mod->dn = ldb_dn_copy(mod, user_dn);
- if (!mod->dn) {
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_NO_MEMORY;
+ /* Start transaction */
+ ret = ldb_transaction_start(sam_ctx);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(sam_ctx)));
+ return NT_STATUS_TRANSACTION_ABORTED;
}
- /* set the password on the user DN specified. This may fail
- * due to password policies */
+ /* Performs the password modification. We pass the old hashes read out
+ * from the database since they were already checked against the user-
+ * provided ones. */
status = samdb_set_password(sam_ctx, mem_ctx,
- user_dn, NULL,
- mod, new_pass,
+ user_dn, NULL,
+ &new_unicode_password,
NULL, NULL,
- true, /* this is a user password change */
- NULL,
+ lm_pwd, NULL, /* this is a user password change */
+ NULL,
NULL);
if (!NT_STATUS_IS_OK(status)) {
ldb_transaction_cancel(sam_ctx);
return status;
}
- /* The above call only setup the modifications, this actually
- * makes the write to the database. */
- ret = samdb_replace(sam_ctx, mem_ctx, mod);
- if (ret != 0) {
- DEBUG(2,("Failed to modify record to change password on %s: %s\n",
- ldb_dn_get_linearized(user_dn),
- ldb_errstring(sam_ctx)));
- ldb_transaction_cancel(sam_ctx);
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
- }
-
/* And this confirms it in a transaction commit */
ret = ldb_transaction_commit(sam_ctx);
- if (ret != 0) {
+ if (ret != LDB_SUCCESS) {
DEBUG(1,("Failed to commit transaction to change password on %s: %s\n",
ldb_dn_get_linearized(user_dn),
ldb_errstring(sam_ctx)));
}
-/*
- samr_ChangePasswordUser3
+/*
+ samr_ChangePasswordUser3
*/
-NTSTATUS dcesrv_samr_ChangePasswordUser3(struct dcesrv_call_state *dce_call,
- TALLOC_CTX *mem_ctx,
- struct samr_ChangePasswordUser3 *r)
-{
+NTSTATUS dcesrv_samr_ChangePasswordUser3(struct dcesrv_call_state *dce_call,
+ TALLOC_CTX *mem_ctx,
+ struct samr_ChangePasswordUser3 *r)
+{
NTSTATUS status;
- char new_pass[512];
- uint32_t new_pass_len;
+ DATA_BLOB new_password;
struct ldb_context *sam_ctx = NULL;
struct ldb_dn *user_dn;
int ret;
- struct ldb_message **res, *mod;
+ struct ldb_message **res;
const char * const attrs[] = { "unicodePwd", "dBCSPwd", NULL };
struct samr_Password *nt_pwd, *lm_pwd;
DATA_BLOB nt_pwd_blob;
struct samr_DomInfo1 *dominfo = NULL;
- struct samr_ChangeReject *reject = NULL;
- enum samr_RejectReason reason = SAMR_REJECT_OTHER;
+ struct userPwdChangeFailureInformation *reject = NULL;
+ enum samPwdChangeReason reason = SAM_PWD_CHANGE_NO_ERROR;
uint8_t new_nt_hash[16], new_lm_hash[16];
struct samr_Password nt_verifier, lm_verifier;
- ZERO_STRUCT(r->out);
+ *r->out.dominfo = NULL;
+ *r->out.reject = NULL;
if (r->in.nt_password == NULL ||
r->in.nt_verifier == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
- /* To change a password we need to open as system */
- sam_ctx = samdb_connect(mem_ctx, global_loadparm, system_session(mem_ctx, global_loadparm));
+ /* Connect to a SAMDB with system privileges for fetching the old pw
+ * hashes. */
+ sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ system_session(dce_call->conn->dce_ctx->lp_ctx), 0);
if (sam_ctx == NULL) {
return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
- ret = ldb_transaction_start(sam_ctx);
- if (ret) {
- talloc_free(sam_ctx);
- DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(sam_ctx)));
- return NT_STATUS_TRANSACTION_ABORTED;
- }
-
/* we need the users dn and the domain dn (derived from the
user SID). We also need the current lm and nt password hashes
in order to decrypt the incoming passwords */
- ret = gendb_search(sam_ctx,
+ ret = gendb_search(sam_ctx,
mem_ctx, NULL, &res, attrs,
"(&(sAMAccountName=%s)(objectclass=user))",
r->in.account->string);
user_dn = res[0]->dn;
- status = samdb_result_passwords(mem_ctx, res[0], &lm_pwd, &nt_pwd);
+ status = samdb_result_passwords(mem_ctx, dce_call->conn->dce_ctx->lp_ctx,
+ res[0], &lm_pwd, &nt_pwd);
if (!NT_STATUS_IS_OK(status) ) {
goto failed;
}
arcfour_crypt_blob(r->in.nt_password->data, 516, &nt_pwd_blob);
data_blob_free(&nt_pwd_blob);
- if (!decode_pw_buffer(r->in.nt_password->data, new_pass, sizeof(new_pass),
- &new_pass_len, STR_UNICODE)) {
+ if (!extract_pw_from_buffer(mem_ctx, r->in.nt_password->data, &new_password)) {
DEBUG(3,("samr: failed to decode password buffer\n"));
- status = NT_STATUS_WRONG_PASSWORD;
+ status = NT_STATUS_WRONG_PASSWORD;
goto failed;
}
}
/* check NT verifier */
- E_md4hash(new_pass, new_nt_hash);
+ mdfour(new_nt_hash, new_password.data, new_password.length);
+
E_old_pw_hash(new_nt_hash, nt_pwd->hash, nt_verifier.hash);
if (memcmp(nt_verifier.hash, r->in.nt_verifier->hash, 16) != 0) {
status = NT_STATUS_WRONG_PASSWORD;
goto failed;
}
- /* check LM verifier */
+ /* check LM verifier (really not needed as we just checked the
+ * much stronger NT hash, but the RPC-SAMR test checks for
+ * this) */
if (lm_pwd && r->in.lm_verifier != NULL) {
- E_deshash(new_pass, new_lm_hash);
- E_old_pw_hash(new_nt_hash, lm_pwd->hash, lm_verifier.hash);
- if (memcmp(lm_verifier.hash, r->in.lm_verifier->hash, 16) != 0) {
- status = NT_STATUS_WRONG_PASSWORD;
- goto failed;
+ char *new_pass;
+ size_t converted_size = 0;
+
+ if (!convert_string_talloc_handle(mem_ctx, lpcfg_iconv_handle(dce_call->conn->dce_ctx->lp_ctx),
+ CH_UTF16, CH_UNIX,
+ (const char *)new_password.data,
+ new_password.length,
+ (void **)&new_pass, &converted_size)) {
+ E_deshash(new_pass, new_lm_hash);
+ E_old_pw_hash(new_nt_hash, lm_pwd->hash, lm_verifier.hash);
+ if (memcmp(lm_verifier.hash, r->in.lm_verifier->hash, 16) != 0) {
+ status = NT_STATUS_WRONG_PASSWORD;
+ goto failed;
+ }
}
}
-
- mod = ldb_msg_new(mem_ctx);
- if (mod == NULL) {
- return NT_STATUS_NO_MEMORY;
+ /* Connect to a SAMDB with user privileges for the password change */
+ sam_ctx = samdb_connect(mem_ctx, dce_call->event_ctx,
+ dce_call->conn->dce_ctx->lp_ctx,
+ dce_call->conn->auth_state.session_info, 0);
+ if (sam_ctx == NULL) {
+ return NT_STATUS_INVALID_SYSTEM_SERVICE;
}
- mod->dn = ldb_dn_copy(mod, user_dn);
- if (!mod->dn) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
+ ret = ldb_transaction_start(sam_ctx);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(1, ("Failed to start transaction: %s\n", ldb_errstring(sam_ctx)));
+ return NT_STATUS_TRANSACTION_ABORTED;
}
- /* set the password on the user DN specified. This may fail
- * due to password policies */
+ /* Performs the password modification. We pass the old hashes read out
+ * from the database since they were already checked against the user-
+ * provided ones. */
status = samdb_set_password(sam_ctx, mem_ctx,
- user_dn, NULL,
- mod, new_pass,
+ user_dn, NULL,
+ &new_password,
NULL, NULL,
- true, /* this is a user password change */
- &reason,
+ lm_pwd, nt_pwd, /* this is a user password change */
+ &reason,
&dominfo);
- if (!NT_STATUS_IS_OK(status)) {
- goto failed;
- }
- /* The above call only setup the modifications, this actually
- * makes the write to the database. */
- ret = samdb_replace(sam_ctx, mem_ctx, mod);
- if (ret != 0) {
- DEBUG(2,("samdb_replace failed to change password for %s: %s\n",
- ldb_dn_get_linearized(user_dn),
- ldb_errstring(sam_ctx)));
- status = NT_STATUS_UNSUCCESSFUL;
+ if (!NT_STATUS_IS_OK(status)) {
+ ldb_transaction_cancel(sam_ctx);
goto failed;
}
/* And this confirms it in a transaction commit */
ret = ldb_transaction_commit(sam_ctx);
- if (ret != 0) {
+ if (ret != LDB_SUCCESS) {
DEBUG(1,("Failed to commit transaction to change password on %s: %s\n",
ldb_dn_get_linearized(user_dn),
ldb_errstring(sam_ctx)));
return NT_STATUS_OK;
failed:
- ldb_transaction_cancel(sam_ctx);
- talloc_free(sam_ctx);
+ reject = talloc_zero(mem_ctx, struct userPwdChangeFailureInformation);
+ if (reject != NULL) {
+ reject->extendedFailureReason = reason;
- reject = talloc(mem_ctx, struct samr_ChangeReject);
- r->out.dominfo = dominfo;
- r->out.reject = reject;
-
- if (reject == NULL) {
- return status;
+ *r->out.reject = reject;
}
- ZERO_STRUCTP(reject);
- reject->reason = reason;
+ *r->out.dominfo = dominfo;
return status;
}
-/*
- samr_ChangePasswordUser2
+/*
+ samr_ChangePasswordUser2
easy - just a subset of samr_ChangePasswordUser3
*/
-NTSTATUS dcesrv_samr_ChangePasswordUser2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
- struct samr_ChangePasswordUser2 *r)
+NTSTATUS dcesrv_samr_ChangePasswordUser2(struct dcesrv_call_state *dce_call,
+ TALLOC_CTX *mem_ctx,
+ struct samr_ChangePasswordUser2 *r)
{
struct samr_ChangePasswordUser3 r2;
+ struct samr_DomInfo1 *dominfo = NULL;
+ struct userPwdChangeFailureInformation *reject = NULL;
r2.in.server = r->in.server;
r2.in.account = r->in.account;
r2.in.lm_password = r->in.lm_password;
r2.in.lm_verifier = r->in.lm_verifier;
r2.in.password3 = NULL;
+ r2.out.dominfo = &dominfo;
+ r2.out.reject = &reject;
return dcesrv_samr_ChangePasswordUser3(dce_call, mem_ctx, &r2);
}
/*
set password via a samr_CryptPassword buffer
- this will in the 'msg' with modify operations that will update the user
- password when applied
*/
NTSTATUS samr_set_password(struct dcesrv_call_state *dce_call,
- void *sam_ctx,
+ struct ldb_context *sam_ctx,
struct ldb_dn *account_dn, struct ldb_dn *domain_dn,
TALLOC_CTX *mem_ctx,
- struct ldb_message *msg,
struct samr_CryptPassword *pwbuf)
{
NTSTATUS nt_status;
- char new_pass[512];
- uint32_t new_pass_len;
+ DATA_BLOB new_password;
DATA_BLOB session_key = data_blob(NULL, 0);
nt_status = dcesrv_fetch_session_key(dce_call->conn, &session_key);
arcfour_crypt_blob(pwbuf->data, 516, &session_key);
- if (!decode_pw_buffer(pwbuf->data, new_pass, sizeof(new_pass),
- &new_pass_len, STR_UNICODE)) {
+ if (!extract_pw_from_buffer(mem_ctx, pwbuf->data, &new_password)) {
DEBUG(3,("samr: failed to decode password buffer\n"));
return NT_STATUS_WRONG_PASSWORD;
}
/* set the password - samdb needs to know both the domain and user DNs,
so the domain password policy can be used */
return samdb_set_password(sam_ctx, mem_ctx,
- account_dn, domain_dn,
- msg, new_pass,
+ account_dn, domain_dn,
+ &new_password,
NULL, NULL,
- false, /* This is a password set, not change */
+ NULL, NULL, /* This is a password set, not change */
NULL, NULL);
}
/*
set password via a samr_CryptPasswordEx buffer
- this will in the 'msg' with modify operations that will update the user
- password when applied
*/
NTSTATUS samr_set_password_ex(struct dcesrv_call_state *dce_call,
struct ldb_context *sam_ctx,
- struct ldb_dn *account_dn, struct ldb_dn *domain_dn,
+ struct ldb_dn *account_dn,
+ struct ldb_dn *domain_dn,
TALLOC_CTX *mem_ctx,
- struct ldb_message *msg,
struct samr_CryptPasswordEx *pwbuf)
{
NTSTATUS nt_status;
- char new_pass[512];
- uint32_t new_pass_len;
+ DATA_BLOB new_password;
DATA_BLOB co_session_key;
DATA_BLOB session_key = data_blob(NULL, 0);
struct MD5Context ctx;
MD5Update(&ctx, &pwbuf->data[516], 16);
MD5Update(&ctx, session_key.data, session_key.length);
MD5Final(co_session_key.data, &ctx);
-
+
arcfour_crypt_blob(pwbuf->data, 516, &co_session_key);
- if (!decode_pw_buffer(pwbuf->data, new_pass, sizeof(new_pass),
- &new_pass_len, STR_UNICODE)) {
+ if (!extract_pw_from_buffer(mem_ctx, pwbuf->data, &new_password)) {
DEBUG(3,("samr: failed to decode password buffer\n"));
return NT_STATUS_WRONG_PASSWORD;
}
/* set the password - samdb needs to know both the domain and user DNs,
so the domain password policy can be used */
return samdb_set_password(sam_ctx, mem_ctx,
- account_dn, domain_dn,
- msg, new_pass,
+ account_dn, domain_dn,
+ &new_password,
NULL, NULL,
- false, /* This is a password set, not change */
+ NULL, NULL, /* This is a password set, not change */
NULL, NULL);
}
+/*
+ set password via encrypted NT and LM hash buffers
+*/
+NTSTATUS samr_set_password_buffers(struct dcesrv_call_state *dce_call,
+ struct ldb_context *sam_ctx,
+ struct ldb_dn *account_dn,
+ struct ldb_dn *domain_dn,
+ TALLOC_CTX *mem_ctx,
+ const uint8_t *lm_pwd_hash,
+ const uint8_t *nt_pwd_hash)
+{
+ struct samr_Password *d_lm_pwd_hash = NULL, *d_nt_pwd_hash = NULL;
+ DATA_BLOB session_key = data_blob(NULL, 0);
+ DATA_BLOB in, out;
+ NTSTATUS nt_status = NT_STATUS_OK;
+
+ nt_status = dcesrv_fetch_session_key(dce_call->conn, &session_key);
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ return nt_status;
+ }
+
+ if (lm_pwd_hash != NULL) {
+ in = data_blob_const(lm_pwd_hash, 16);
+ out = data_blob_talloc_zero(mem_ctx, 16);
+
+ sess_crypt_blob(&out, &in, &session_key, false);
+
+ d_lm_pwd_hash = (struct samr_Password *) out.data;
+ }
+ if (nt_pwd_hash != NULL) {
+ in = data_blob_const(nt_pwd_hash, 16);
+ out = data_blob_talloc_zero(mem_ctx, 16);
+
+ sess_crypt_blob(&out, &in, &session_key, false);
+
+ d_nt_pwd_hash = (struct samr_Password *) out.data;
+ }
+ if ((d_lm_pwd_hash != NULL) || (d_nt_pwd_hash != NULL)) {
+ nt_status = samdb_set_password(sam_ctx, mem_ctx, account_dn,
+ domain_dn, NULL,
+ d_lm_pwd_hash, d_nt_pwd_hash,
+ NULL, NULL, /* this is a password set */
+ NULL, NULL);
+ }
+
+ return nt_status;
+}
git.samba.org / samba.git / blobdiff