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authorGünther Deschner <gd@samba.org>2009-05-08 00:16:43 +0200
committerGünther Deschner <gd@samba.org>2009-05-08 00:46:49 +0200
commit5773d7d10253f6f53a9ae96e9979a87393b242a6 (patch)
treedb21863620cf1d001edaf8c2934dda96683cabf0 /source3
parentd17c6af57c6e5ec10d71a9fcbffc6ce4d34a553f (diff)
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s3-samr: implement _samr_ChangePasswordUser().
This is vastly copied from samba4 samr server. Guenther
Diffstat (limited to 'source3')
-rw-r--r--source3/rpc_server/srv_samr_nt.c116
1 files changed, 106 insertions, 10 deletions
diff --git a/source3/rpc_server/srv_samr_nt.c b/source3/rpc_server/srv_samr_nt.c
index cef8c08c64..1a1b5e9a74 100644
--- a/source3/rpc_server/srv_samr_nt.c
+++ b/source3/rpc_server/srv_samr_nt.c
@@ -1769,6 +1769,112 @@ NTSTATUS _samr_LookupNames(pipes_struct *p,
return status;
}
+/****************************************************************
+ _samr_ChangePasswordUser
+****************************************************************/
+
+NTSTATUS _samr_ChangePasswordUser(pipes_struct *p,
+ struct samr_ChangePasswordUser *r)
+{
+ NTSTATUS status;
+ bool ret = false;
+ struct samr_user_info *uinfo;
+ struct samu *pwd;
+ struct samr_Password new_lmPwdHash, new_ntPwdHash, checkHash;
+ struct samr_Password lm_pwd, nt_pwd;
+
+ uinfo = policy_handle_find(p, r->in.user_handle,
+ SAMR_USER_ACCESS_SET_PASSWORD, NULL,
+ struct samr_user_info, &status);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ DEBUG(5,("_samr_ChangePasswordUser: sid:%s\n",
+ sid_string_dbg(&uinfo->sid)));
+
+ if (!(pwd = samu_new(NULL))) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ become_root();
+ ret = pdb_getsampwsid(pwd, &uinfo->sid);
+ unbecome_root();
+
+ if (!ret) {
+ TALLOC_FREE(pwd);
+ return NT_STATUS_WRONG_PASSWORD;
+ }
+
+ {
+ const uint8_t *lm_pass, *nt_pass;
+
+ lm_pass = pdb_get_lanman_passwd(pwd);
+ nt_pass = pdb_get_nt_passwd(pwd);
+
+ memcpy(&lm_pwd.hash, lm_pass, sizeof(lm_pwd.hash));
+ memcpy(&nt_pwd.hash, nt_pass, sizeof(nt_pwd.hash));
+ }
+
+ /* basic sanity checking on parameters. Do this before any database ops */
+ if (!r->in.lm_present || !r->in.nt_present ||
+ !r->in.old_lm_crypted || !r->in.new_lm_crypted ||
+ !r->in.old_nt_crypted || !r->in.new_nt_crypted) {
+ /* we should really handle a change with lm not
+ present */
+ status = NT_STATUS_INVALID_PARAMETER_MIX;
+ goto out;
+ }
+
+ /* 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.hash, 16) != 0) {
+ status = NT_STATUS_WRONG_PASSWORD;
+ goto out;
+ }
+
+ /* 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.hash, 16) != 0) {
+ status = NT_STATUS_WRONG_PASSWORD;
+ goto out;
+ }
+
+ /* 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) {
+ D_P16(lm_pwd.hash, r->in.nt_cross->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, new_ntPwdHash.hash, 16) != 0) {
+ status = NT_STATUS_WRONG_PASSWORD;
+ goto out;
+ }
+ }
+
+ /* 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) {
+ D_P16(nt_pwd.hash, r->in.lm_cross->hash, checkHash.hash);
+ if (memcmp(checkHash.hash, new_lmPwdHash.hash, 16) != 0) {
+ status = NT_STATUS_WRONG_PASSWORD;
+ goto out;
+ }
+ }
+
+ if (!pdb_set_nt_passwd(pwd, new_ntPwdHash.hash, PDB_CHANGED) ||
+ !pdb_set_lanman_passwd(pwd, new_lmPwdHash.hash, PDB_CHANGED)) {
+ status = NT_STATUS_ACCESS_DENIED;
+ goto out;
+ }
+
+ status = pdb_update_sam_account(pwd);
+ out:
+ TALLOC_FREE(pwd);
+
+ return status;
+}
+
/*******************************************************************
_samr_ChangePasswordUser2
********************************************************************/
@@ -6108,16 +6214,6 @@ NTSTATUS _samr_SetMemberAttributesOfGroup(pipes_struct *p,
/****************************************************************
****************************************************************/
-NTSTATUS _samr_ChangePasswordUser(pipes_struct *p,
- struct samr_ChangePasswordUser *r)
-{
- p->rng_fault_state = true;
- return NT_STATUS_NOT_IMPLEMENTED;
-}
-
-/****************************************************************
-****************************************************************/
-
NTSTATUS _samr_TestPrivateFunctionsDomain(pipes_struct *p,
struct samr_TestPrivateFunctionsDomain *r)
{