the start of the start of the SAM database API

(This used to be commit 3eacd3013cc909e6e731a1a42f0aa7f202673bb9)

1 files changed, 389 insertions, 0 deletions

diff --git a/source3/groupdb/aliasdb.c b/source3/groupdb/aliasdb.c
new file mode 100644
index 0000000000..573736d7f5
--- /dev/null
+++ b/source3/groupdb/aliasdb.c
@@ -0,0 +1,389 @@
+/* 
+   Unix SMB/Netbios implementation.
+   Version 1.9.
+   Pasesword and authentication handling
+   Copyright (C) Jeremy Allison 1996-1998
+   Copyright (C) Luke Kenneth Caseson 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 Mases Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "nterr.h"
+
+extern int DEBUGLEVEL;
+
+extern fstring global_sam_name;
+
+/*
+ * NOTE. All these functions are abstracted into a structure
+ * that points to the correct function for the selected database. JRA.
+ */
+
+static struct aliasdb_ops *aldb_ops;
+
+/***************************************************************
+ Initialise the alias db operations.
+***************************************************************/
+
+BOOL initialise_alias_db(void)
+{
+  if (aldb_ops)
+  {
+    return True;
+  }
+
+#ifdef WITH_NISPLUS
+  aldb_ops =  nisplus_initialise_alias_db();
+#elif defined(WITH_LDAP)
+  aldb_ops = ldap_initialise_alias_db();
+#else 
+  aldb_ops = file_initialise_alias_db();
+#endif 
+
+  return (aldb_ops != NULL);
+}
+
+/*
+ * Functions that return/manipulate a LOCAL_GRP.
+ */
+
+/************************************************************************
+ Utility function to search alias database by gid: the LOCAL_GRP
+ structure does not have a gid member, so we have to convert here
+ from gid to alias rid.
+*************************************************************************/
+LOCAL_GRP *iterate_getaliasgid(gid_t gid, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	return iterate_getaliasrid(pwdb_gid_to_alias_rid(gid), mem, num_mem);
+}
+
+/************************************************************************
+ Utility function to search alias database by rid.  use this if your database
+ does not have search facilities.
+*************************************************************************/
+LOCAL_GRP *iterate_getaliasrid(uint32 rid, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	LOCAL_GRP *als = NULL;
+	void *fp = NULL;
+
+	DEBUG(10, ("search by rid: 0x%x\n", rid));
+
+	/* Open the alias database file - not for update. */
+	fp = startaliasent(False);
+
+	if (fp == NULL)
+	{
+		DEBUG(0, ("unable to open alias database.\n"));
+		return NULL;
+	}
+
+	while ((als = getaliasent(fp, mem, num_mem)) != NULL && als->rid != rid)
+	{
+	}
+
+	if (als != NULL)
+	{
+		DEBUG(10, ("found alias %s by rid: 0x%x\n", als->name, rid));
+	}
+
+	endaliasent(fp);
+	return als;
+}
+
+/************************************************************************
+ Utility function to search alias database by name.  use this if your database
+ does not have search facilities.
+*************************************************************************/
+LOCAL_GRP *iterate_getaliasnam(char *name, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	LOCAL_GRP *als = NULL;
+	void *fp = NULL;
+
+	DEBUG(10, ("search by name: %s\n", name));
+
+	/* Open the alias database file - not for update. */
+	fp = startaliasent(False);
+
+	if (fp == NULL)
+	{
+		DEBUG(0, ("unable to open alias database.\n"));
+		return NULL;
+	}
+
+	while ((als = getaliasent(fp, mem, num_mem)) != NULL && !strequal(als->name, name))
+	{
+	}
+
+	if (als != NULL)
+	{
+		DEBUG(10, ("found by name: %s\n", name));
+	}
+
+	endaliasent(fp);
+	return als;
+}
+
+/*************************************************************************
+ Routine to return the next entry in the smbdomainalias list.
+ *************************************************************************/
+BOOL add_domain_alias(LOCAL_GRP **alss, int *num_alss, LOCAL_GRP *als)
+{
+	if (alss == NULL || num_alss == NULL || als == NULL)
+	{
+		return False;
+	}
+
+	(*alss) = Realloc((*alss), ((*num_alss)+1) * sizeof(LOCAL_GRP));
+	if ((*alss) == NULL)
+	{
+		return False;
+	}
+
+	DEBUG(10,("adding alias %s(%s)\n", als->name, als->comment));
+
+	fstrcpy((*alss)[(*num_alss)].name   , als->name);
+	fstrcpy((*alss)[(*num_alss)].comment, als->comment);
+	(*alss)[(*num_alss)].rid = als->rid;
+
+	(*num_alss)++;
+
+	return True;
+}
+
+/*************************************************************************
+ checks to see if a user is a member of a domain alias
+ *************************************************************************/
+static BOOL user_is_member(char *user_name, LOCAL_GRP_MEMBER *mem, int num_mem)
+{
+	int i;
+	pstring name;
+	snprintf(name, sizeof(name), "\\%s\\%s", global_sam_name, user_name);
+
+	for (i = 0; i < num_mem; i++)
+	{
+		DEBUG(10,("searching against user %s...\n", mem[i].name));
+		if (strequal(mem[i].name, name))
+		{
+			DEBUG(10,("searching for user %s: found\n", name));
+			return True;
+		}
+	}
+	DEBUG(10,("searching for user %s: not found\n", name));
+	return False;
+}
+
+/*************************************************************************
+ gets an array of aliases that a user is in.  use this if your database
+ does not have search facilities
+ *************************************************************************/
+BOOL iterate_getuseraliasnam(char *user_name, LOCAL_GRP **alss, int *num_alss)
+{
+	LOCAL_GRP *als;
+	LOCAL_GRP_MEMBER *mem = NULL;
+	int num_mem = 0;
+	void *fp = NULL;
+
+	DEBUG(10, ("search for useralias by name: %s\n", user_name));
+
+	if (user_name == NULL || als == NULL || num_alss == NULL)
+	{
+		return False;
+	}
+
+	(*alss) = NULL;
+	(*num_alss) = 0;
+
+	/* Open the alias database file - not for update. */
+	fp = startaliasent(False);
+
+	if (fp == NULL)
+	{
+		DEBUG(0, ("unable to open alias database.\n"));
+		return False;
+	}
+
+	/* iterate through all aliases.  search members for required user */
+	while ((als = getaliasent(fp, &mem, &num_mem)) != NULL)
+	{
+		DEBUG(5,("alias name %s members: %d\n", als->name, num_mem));
+		if (num_mem != 0 && mem != NULL)
+		{
+			BOOL ret = True;
+			if (user_is_member(user_name, mem, num_mem))
+			{
+				ret = add_domain_alias(alss, num_alss, als);
+			}
+
+			free(mem);
+			mem = NULL;
+			num_mem = 0;
+
+			if (!ret)
+			{
+				(*num_alss) = 0;
+				break;
+			}
+		}
+	}
+
+	if ((*num_alss) != 0)
+	{
+		DEBUG(10, ("found %d user aliases:\n", (*num_alss)));
+	}
+
+	endaliasent(fp);
+	return True;
+}
+
+/*************************************************************************
+ gets an array of aliases that a user is in.  use this if your database
+ does not have search facilities
+ *************************************************************************/
+BOOL enumdomaliases(LOCAL_GRP **alss, int *num_alss)
+{
+	LOCAL_GRP *als;
+	void *fp = NULL;
+
+	DEBUG(10, ("enum user aliases\n"));
+
+	if (als == NULL || num_alss == NULL)
+	{
+		return False;
+	}
+
+	(*alss) = NULL;
+	(*num_alss) = 0;
+
+	/* Open the alias database file - not for update. */
+	fp = startaliasent(False);
+
+	if (fp == NULL)
+	{
+		DEBUG(0, ("unable to open alias database.\n"));
+		return False;
+	}
+
+	/* iterate through all aliases. */
+	while ((als = getaliasent(fp, NULL, NULL)) != NULL)
+	{
+		if (!add_domain_alias(alss, num_alss, als))
+		{
+			DEBUG(0,("unable to add alias while enumerating\n"));
+			return False;
+		}
+	}
+
+	if ((*num_alss) != 0)
+	{
+		DEBUG(10, ("found %d user aliases:\n", (*num_alss)));
+	}
+
+	endaliasent(fp);
+	return True;
+}
+
+/***************************************************************
+ Start to enumerate the alias database list. Returns a void pointer
+ to ensure no modification outside this module.
+****************************************************************/
+
+void *startaliasent(BOOL update)
+{
+  return aldb_ops->startaliasent(update);
+}
+
+/***************************************************************
+ End enumeration of the alias database list.
+****************************************************************/
+
+void endaliasent(void *vp)
+{
+  aldb_ops->endaliasent(vp);
+}
+
+/*************************************************************************
+ Routine to return the next entry in the alias database list.
+ *************************************************************************/
+
+LOCAL_GRP *getaliasent(void *vp, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	return aldb_ops->getaliasent(vp, mem, num_mem);
+}
+
+/************************************************************************
+ Routine to add an entry to the alias database file.
+*************************************************************************/
+
+BOOL add_alias_entry(LOCAL_GRP *newals)
+{
+ 	return aldb_ops->add_alias_entry(newals);
+}
+
+/************************************************************************
+ Routine to search the alias database file for an entry matching the aliasname.
+ and then replace the entry.
+************************************************************************/
+
+BOOL mod_alias_entry(LOCAL_GRP* als)
+{
+ 	return aldb_ops->mod_alias_entry(als);
+}
+
+/************************************************************************
+ Routine to search alias database by name.
+*************************************************************************/
+
+LOCAL_GRP *getaliasnam(char *name, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	return aldb_ops->getaliasnam(name, mem, num_mem);
+}
+
+/************************************************************************
+ Routine to search alias database by alias rid.
+*************************************************************************/
+
+LOCAL_GRP *getaliasrid(uint32 alias_rid, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	return aldb_ops->getaliasrid(alias_rid, mem, num_mem);
+}
+
+/************************************************************************
+ Routine to search alias database by gid.
+*************************************************************************/
+
+LOCAL_GRP *getaliasgid(gid_t gid, LOCAL_GRP_MEMBER **mem, int *num_mem)
+{
+	return aldb_ops->getaliasgid(gid, mem, num_mem);
+}
+
+/*************************************************************************
+ gets an array of aliases that a user is in.
+ *************************************************************************/
+BOOL getuseraliasnam(char *user_name, LOCAL_GRP **als, int *num_alss)
+{
+	return aldb_ops->getuseraliasnam(user_name, als, num_alss);
+}
+
+/*************************************************************
+ initialises a LOCAL_GRP.
+ **************************************************************/
+
+void aldb_init_als(LOCAL_GRP *als)
+{
+	if (als == NULL) return;
+	ZERO_STRUCTP(als);
+}
+