r1816: here's the initial idea of libnet

metze
(This used to be commit dcb3ea32da6d7cf93e6bdda9b839faf604ba3b6a)

1 files changed, 117 insertions, 0 deletions

diff --git a/source4/libnet/libnet_passwd.c b/source4/libnet/libnet_passwd.c
new file mode 100644
index 00000000000..edf0d27b95f
--- /dev/null
+++ b/source4/libnet/libnet_passwd.c
@@ -0,0 +1,117 @@
+/* 
+   Unix SMB/CIFS implementation.
+   
+   Copyright (C) Stefan Metzmacher	2004
+   
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+/*
+ * 1. connect to the SAMR pipe of *our* PDC
+ * 2. try samr_ChangePassword3
+ */
+static NTSTATUS libnet_ChangePassword_rpc(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct net_ChangePassword *r)
+{
+        NTSTATUS status;
+        struct dcerpc_pipe *p = NULL;
+	struct samr_ChangePasswordUser3 pw3;
+	struct samr_Name server, account;
+	struct samr_CryptPassword nt_pass, lm_pass;
+	struct samr_Password nt_verifier, lm_verifier;
+	uint8_t old_nt_hash[16], new_nt_hash[16];
+	uint8_t old_lm_hash[16], new_lm_hash[16];
+
+	/* connect to the SAMR pipe of the */
+	status = libnet_rpc_connect_pdc(ctx, mem_ctx,
+					r->rpc.in.domain_name,
+					DCERPC_SAMR_NAME,
+					DCERPC_SAMR_UUID,
+					DCERPC_SAMR_VERSION,
+					&p);
+	if (!NT_STATUS_IS_OK(status)) {
+		r->rpc.out.error_string = talloc_asprintf(mem_ctx,
+						"Connection to SAMR pipe of PDC of domain '%s' failed\n",
+						r->rpc.in.domain_name);
+		return status;
+	}
+
+	server.name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
+	init_samr_Name(&account, r->rpc.in.account_name);
+
+	E_md4hash(r->rpc.in.oldpassword, old_nt_hash);
+	E_md4hash(r->rpc.in.newpassword, new_nt_hash);
+
+	E_deshash(r->rpc.in.oldpassword, old_lm_hash);
+	E_deshash(r->rpc.in.newpassword, new_lm_hash);
+
+	encode_pw_buffer(lm_pass.data, r->rpc.in.newpassword, STR_UNICODE);
+	arcfour_crypt(lm_pass.data, old_nt_hash, 516);
+	E_old_pw_hash(new_lm_hash, old_lm_hash, lm_verifier.hash);
+
+	encode_pw_buffer(nt_pass.data,  r->rpc.in.newpassword, STR_UNICODE);
+	arcfour_crypt(nt_pass.data, old_nt_hash, 516);
+	E_old_pw_hash(new_nt_hash, old_nt_hash, nt_verifier.hash);
+
+	pw3.in.server = &server;
+	pw3.in.account = &account;
+	pw3.in.nt_password = &nt_pass;
+	pw3.in.nt_verifier = &nt_verifier;
+	pw3.in.lm_change = 1;
+	pw3.in.lm_password = &lm_pass;
+	pw3.in.lm_verifier = &lm_verifier;
+	pw3.in.password3 = NULL;
+
+	status = dcerpc_samr_ChangePassword3(p, mem_ctx, &pw3);
+	if (!NT_STATUS_IS_OK(status)) {
+		r->rpc.out.error_string = talloc_asprintf(mem_ctx,
+						"ChangePassword3 failed: %s\n",nt_errstr(status);
+		return status;
+	}
+
+	if (!NT_STATUS_IS_OK(r->rpc.out.result)) {
+		r->rpc.out.error_string = talloc_asprintf(mem_ctx,
+						"ChangePassword3 for '%s\\%s' failed: %s\n",
+						r->rpc.in.domain_name, r->rpc.in.account_name, 
+						nt_errstr(status));
+						/* TODO: give the reason of the reject */
+		return status;
+	
+	}
+
+	dcerpc_diconnect(&p);
+
+	return NT_STATUS_OK;
+}
+
+static NTSTATUS libnet_ChangePassword_generic(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct net_ChangePassword *r)
+{
+	return NT_STATUS_NOT_IMPLEMTED;
+}
+
+NTSTATUS libnet_ChangePassword(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct net_ChangePassword *r)
+{
+	switch (r->generic.level) {
+		case LIBNET_CHANGE_PASSWORD_GENERIC:
+			return libnet_ChangePassword_generic(ctx, mem_ctx, r);
+		case LIBNET_CHANGE_PASSWORD_RPC:
+			return libnet_ChangePassword_rpc(ctx, mem_ctx, r);
+		case LIBNET_CHANGE_PASSWORD_ADS:
+			return NT_STATUS_NOT_IMPLEMTED;
+		case LIBNET_CHANGE_PASSWORD_RAP:
+			return NT_STATUS_NOT_IMPLEMTED;
+	}
+
+	return NT_STATUS_INVALID_LEVEL;
+}