the start of the start of the SAM database API

(This used to be commit 3eacd3013cc909e6e731a1a42f0aa7f202673bb9)

2 files changed, 417 insertions, 0 deletions

diff --git a/source3/passdb/passgrp.c b/source3/passdb/passgrp.c
new file mode 100644
index 0000000000..ded9ef33d2
--- /dev/null
+++ b/source3/passdb/passgrp.c
@@ -0,0 +1,221 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   Password and authentication handling
+   Copyright (C) Jeremy Allison 1996-1998
+   Copyright (C) Luke Kenneth Casson Leighton 1996-1998
+      
+   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"
+#include "nterr.h"
+
+extern int DEBUGLEVEL;
+
+/*
+ * NOTE. All these functions are abstracted into a structure
+ * that points to the correct function for the selected database. JRA.
+ *
+ * the API does NOT fill in the gaps if you set an API function
+ * to NULL: it will deliberately attempt to call the NULL function.
+ *
+ */
+
+static struct passgrp_ops *pwgrp_ops;
+
+/***************************************************************
+ Initialise the passgrp operations.
+***************************************************************/
+
+BOOL initialise_passgrp_db(void)
+{
+  if (pwgrp_ops)
+  {
+    return True;
+  }
+
+#ifdef WITH_NISPLUS
+  pwgrp_ops =  nisplus_initialise_password_grp();
+#elif defined(WITH_LDAP)
+  pwgrp_ops = ldap_initialise_password_grp();
+#else 
+  pwgrp_ops = file_initialise_password_grp();
+#endif 
+
+  return (pwgrp_ops != NULL);
+}
+
+/*
+ * Functions that return/manipulate a struct smb_passwd.
+ */
+
+/************************************************************************
+ Utility function to search smb passwd by rid.  
+*************************************************************************/
+
+struct smb_passwd *iterate_getsmbgrprid(uint32 user_rid,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	return iterate_getsmbgrpuid(pwdb_user_rid_to_uid(user_rid),
+	                            grps, num_grps, alss, num_alss);
+}
+
+/************************************************************************
+ Utility function to search smb passwd by uid.  use this if your database
+ does not have search facilities.
+*************************************************************************/
+
+struct smb_passwd *iterate_getsmbgrpuid(uid_t smb_userid,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	struct smb_passwd *pwd = NULL;
+	void *fp = NULL;
+
+	DEBUG(10, ("search by smb_userid: %x\n", (int)smb_userid));
+
+	/* Open the smb password database - not for update. */
+	fp = startsmbgrpent(False);
+
+	if (fp == NULL)
+	{
+		DEBUG(0, ("unable to open smb passgrp database.\n"));
+		return NULL;
+	}
+
+	while ((pwd = getsmbgrpent(fp, grps, num_grps, alss, num_alss)) != NULL && pwd->smb_userid != smb_userid)
+      ;
+
+	if (pwd != NULL)
+	{
+		DEBUG(10, ("found by smb_userid: %x\n", (int)smb_userid));
+	}
+
+	endsmbgrpent(fp);
+	return pwd;
+}
+
+/************************************************************************
+ Utility function to search smb passwd by name.  use this if your database
+ does not have search facilities.
+*************************************************************************/
+
+struct smb_passwd *iterate_getsmbgrpnam(char *name,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	struct smb_passwd *pwd = NULL;
+	void *fp = NULL;
+
+	DEBUG(10, ("search by name: %s\n", name));
+
+	/* Open the passgrp file - not for update. */
+	fp = startsmbgrpent(False);
+
+	if (fp == NULL)
+	{
+		DEBUG(0, ("unable to open smb passgrp database.\n"));
+		return NULL;
+	}
+
+	while ((pwd = getsmbgrpent(fp, grps, num_grps, alss, num_alss)) != NULL && !strequal(pwd->smb_name, name))
+      ;
+
+	if (pwd != NULL)
+	{
+		DEBUG(10, ("found by name: %s\n", name));
+	}
+
+	endsmbgrpent(fp);
+	return pwd;
+}
+
+/***************************************************************
+ Start to enumerate the smb or sam passwd list. Returns a void pointer
+ to ensure no modification outside this module.
+
+ Note that currently it is being assumed that a pointer returned
+ from this function may be used to enumerate struct sam_passwd
+ entries as well as struct smb_passwd entries. This may need
+ to change. JRA.
+
+****************************************************************/
+
+void *startsmbgrpent(BOOL update)
+{
+  return pwgrp_ops->startsmbgrpent(update);
+}
+
+/***************************************************************
+ End enumeration of the smb or sam passwd list.
+
+ Note that currently it is being assumed that a pointer returned
+ from this function may be used to enumerate struct sam_passwd
+ entries as well as struct smb_passwd entries. This may need
+ to change. JRA.
+
+****************************************************************/
+
+void endsmbgrpent(void *vp)
+{
+  pwgrp_ops->endsmbgrpent(vp);
+}
+
+/*************************************************************************
+ Routine to return the next entry in the smb passwd list.
+ *************************************************************************/
+
+struct smb_passwd *getsmbgrpent(void *vp,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	return pwgrp_ops->getsmbgrpent(vp, grps, num_grps, alss, num_alss);
+}
+
+/************************************************************************
+ Routine to search smb passwd by name.
+*************************************************************************/
+
+struct smb_passwd *getsmbgrpnam(char *name,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	return pwgrp_ops->getsmbgrpnam(name, grps, num_grps, alss, num_alss);
+}
+
+/************************************************************************
+ Routine to search smb passwd by user rid.
+*************************************************************************/
+
+struct smb_passwd *getsmbgrprid(uint32 user_rid,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	return pwgrp_ops->getsmbgrprid(user_rid, grps, num_grps, alss, num_alss);
+}
+
+/************************************************************************
+ Routine to search smb passwd by uid.
+*************************************************************************/
+
+struct smb_passwd *getsmbgrpuid(uid_t smb_userid,
+		uint32 **grps, int *num_grps,
+		uint32 **alss, int *num_alss)
+{
+	return pwgrp_ops->getsmbgrpuid(smb_userid, grps, num_grps, alss, num_alss);
+}
+
diff --git a/source3/passdb/smbpassgroup.c b/source3/passdb/smbpassgroup.c
new file mode 100644
index 0000000000..4636c08c94
--- /dev/null
+++ b/source3/passdb/smbpassgroup.c
@@ -0,0 +1,196 @@
+/*
+ * Unix SMB/Netbios implementation. Version 1.9. SMB parameters and setup
+ * Copyright (C) Andrew Tridgell 1992-1998 Modified by Jeremy Allison 1995.
+ * 
+ * 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"
+
+#ifdef USE_SMBPASS_DB
+
+static int grp_file_lock_depth = 0;
+extern int DEBUGLEVEL;
+
+/***************************************************************
+ Start to enumerate the smbpasswd list. Returns a void pointer
+ to ensure no modification outside this module.
+****************************************************************/
+
+static void *startsmbfilegrpent(BOOL update)
+{
+	static char s_readbuf[1024];
+	return startfilepwent(lp_smb_passgrp_file(), s_readbuf, sizeof(s_readbuf),
+	                      &grp_file_lock_depth, update);
+}
+
+/***************************************************************
+ End enumeration of the smbpasswd list.
+****************************************************************/
+
+static void endsmbfilegrpent(void *vp)
+{
+	endfilepwent(vp, &grp_file_lock_depth);
+}
+
+/*************************************************************************
+ Return the current position in the smbpasswd list as an SMB_BIG_UINT.
+ This must be treated as an opaque token.
+*************************************************************************/
+
+static SMB_BIG_UINT getsmbfilegrppos(void *vp)
+{
+	return getfilepwpos(vp);
+}
+
+/*************************************************************************
+ Set the current position in the smbpasswd list from an SMB_BIG_UINT.
+ This must be treated as an opaque token.
+*************************************************************************/
+
+static BOOL setsmbfilegrppos(void *vp, SMB_BIG_UINT tok)
+{
+	return setfilepwpos(vp, tok);
+}
+
+/*************************************************************************
+ Routine to return the next entry in the smbpasswd list.
+ *************************************************************************/
+static struct smb_passwd *getsmbfilegrpent(void *vp,
+		uint32 **grp_rids, int *num_grps,
+		uint32 **als_rids, int *num_alss)
+{
+	/* Static buffers we will return. */
+	static struct smb_passwd pw_buf;
+	static pstring  user_name;
+	struct passwd *pwfile;
+	pstring		linebuf;
+	unsigned char  *p;
+	int            uidval;
+	size_t            linebuf_len;
+
+	if (vp == NULL)
+	{
+		DEBUG(0,("getsmbfilegrpent: Bad password file pointer.\n"));
+		return NULL;
+	}
+
+	pwdb_init_smb(&pw_buf);
+
+	/*
+	 * Scan the file, a line at a time.
+	 */
+	while ((linebuf_len = getfileline(vp, linebuf, sizeof(linebuf))) > 0)
+	{
+		/*
+		 * The line we have should be of the form :-
+		 * 
+		 * username:uid:domainrid1,domainrid2..:aliasrid1,aliasrid2..:
+		 */
+
+		/*
+		 * As 256 is shorter than a pstring we don't need to check
+		 * length here - if this ever changes....
+		 */
+		p = strncpyn(user_name, linebuf, sizeof(user_name), ':');
+
+		/* Go past ':' */
+		p++;
+
+		/* Get smb uid. */
+
+		p = Atoic((char *) p, &uidval, ":");
+
+		pw_buf.smb_name = user_name;
+		pw_buf.smb_userid = uidval;
+
+		/*
+		 * Now get the password value - this should be 32 hex digits
+		 * which are the ascii representations of a 16 byte string.
+		 * Get two at a time and put them into the password.
+		 */
+
+		/* Skip the ':' */
+		p++;
+
+		if (grp_rids != NULL && num_grps != NULL)
+		{
+			int i;
+			p = get_numlist(p, grp_rids, num_grps);
+			if (p == NULL)
+			{
+				DEBUG(0,("getsmbfilegrpent: invalid line\n"));
+				return NULL;
+			}
+			for (i = 0; i < (*num_grps); i++)
+			{
+				(*grp_rids)[i] = pwdb_gid_to_group_rid((*grp_rids)[i]);
+			}
+		}
+
+		/* Skip the ':' */
+		p++;
+
+		if (als_rids != NULL && num_alss != NULL)
+		{
+			int i;
+			p = get_numlist(p, als_rids, num_alss);
+			if (p == NULL)
+			{
+				DEBUG(0,("getsmbfilegrpent: invalid line\n"));
+				return NULL;
+			}
+			for (i = 0; i < (*num_alss); i++)
+			{
+				(*als_rids)[i] = pwdb_gid_to_alias_rid((*als_rids)[i]);
+			}
+		}
+
+		pwfile = Get_Pwnam(pw_buf.smb_name, False);
+		if (pwfile == NULL)
+		{
+			DEBUG(0,("getsmbfilegrpent: smbpasswd database is corrupt!\n"));
+			DEBUG(0,("getsmbfilegrpent: username %s not in unix passwd database!\n", pw_buf.smb_name));
+			return NULL;
+		}
+
+		return &pw_buf;
+	}
+
+	DEBUG(5,("getsmbfilegrpent: end of file reached.\n"));
+	return NULL;
+}
+
+static struct passgrp_ops file_ops =
+{
+	startsmbfilegrpent,
+	endsmbfilegrpent,
+	getsmbfilegrppos,
+	setsmbfilegrppos,
+	iterate_getsmbgrpnam,          /* In passgrp.c */
+	iterate_getsmbgrpuid,          /* In passgrp.c */
+	iterate_getsmbgrprid,          /* In passgrp.c */
+	getsmbfilegrpent,
+};
+
+struct passgrp_ops *file_initialise_password_grp(void)
+{    
+  return &file_ops;
+}
+
+#else
+ /* Do *NOT* make this function static. It breaks the compile on gcc. JRA */
+ void smbpass_dummy_function(void) { } /* stop some compilers complaining */
+#endif /* USE_SMBPASS_DB */