added "net join" command

this completes the first stage of the smbd ADS support
(This used to be commit 058a5aee901e6609969ef7e1d482a720a84a4a12)

1 files changed, 143 insertions, 0 deletions

diff --git a/source3/utils/net_join.c b/source3/utils/net_join.c
new file mode 100644
index 0000000000..793d72ac7e
--- /dev/null
+++ b/source3/utils/net_join.c
@@ -0,0 +1,143 @@
+/* 
+   Samba Unix/Linux SMB client library 
+   Version 3.0
+   join a realm
+   Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
+
+   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.  
+*/
+
+#include "includes.h"
+
+#if HAVE_ADS
+
+/* a lame random number generator - used /dev/urandom if possible */
+static unsigned one_random(void)
+{
+	int fd = -1;
+	static int initialised;
+	unsigned ret;
+
+	if (!initialised) {
+		initialised = 1;
+		fd = open("/dev/urandom", O_RDONLY);
+		srandom(time(NULL) ^ getpid());
+	}
+
+	if (fd == -1) {
+		return random();
+	}
+
+	read(fd, &ret, sizeof(ret));
+	return ret;
+}
+
+/*
+ * Generate a simple random password of 15 chars - not a cryptographic one
+ */
+static char *generate_random_password(int len)
+{
+	int i;
+	char *pass;
+
+	if (!(pass = malloc(len+1)))
+		return NULL;
+
+	for (i=0; i<len; ) {
+		char c = one_random() & 0x7f;
+		if (!isalnum(c) && !ispunct(c)) continue;
+		pass[i++] = c;
+	}
+	
+	return pass;
+}
+
+
+int net_join_usage(void)
+{
+	d_printf("\nnet join"\
+		 "\n\tjoins the local machine to a ADS realm\n");
+	return -1;
+}
+
+int net_join(int argc, const char **argv)
+{
+	char *ldap_host;
+	char *hostname;
+	char *realm;
+	ADS_STRUCT *ads;
+	int rc;
+	char *password;
+	extern pstring global_myname;
+	NTSTATUS status;
+
+	hostname = strdup(global_myname);
+	strlower(hostname);
+	realm = lp_realm();
+	ldap_host = lp_ads_server();
+	if (!*ldap_host) ldap_host = NULL;
+	if (!*realm) realm = NULL;
+
+	if (!secrets_init()) {
+		DEBUG(1,("Failed to initialise secrets database\n"));
+		return -1;
+	}
+
+	password = generate_random_password(15);
+
+	ads = ads_init(realm, ldap_host, NULL);
+
+	rc = ads_connect(ads);
+	if (rc) {
+		d_printf("ads_connect: %s\n", ads_errstr(rc));
+		return -1;
+	}
+
+	rc = ads_join_realm(ads, hostname);
+	if (rc) {
+		d_printf("ads_join_realm: %s\n", ads_errstr(rc));
+		return -1;
+	}
+
+	status = ads_set_machine_password(ads, hostname, password);
+	if (!NT_STATUS_IS_OK(status)) {
+		d_printf("ads_set_machine_password: %s\n", get_nt_error_msg(status));
+		return -1;
+	}
+
+	if (!secrets_store_machine_password(password)) {
+		DEBUG(1,("Failed to save machine password\n"));
+		return -1;
+	}
+
+	d_printf("Joined %s to realm %s\n", hostname, realm);
+
+	return 0;
+}
+
+#else
+
+int net_join_usage(void)
+{
+	d_printf("ADS support not compiled in\n");
+	return -1;
+}
+
+int net_join(int argc, const char **argv)
+{
+	return net_join_usage();
+}
+
+#endif