r6310: Rename password.c to session.c, and remove the linked list of all

outstanding sessions, as we don't use it.

Andrew Bartlett
(This used to be commit 0cbd11a0f2448f2021fa1d8ad85a0a6f52192ee8)

1 files changed, 139 insertions, 0 deletions

diff --git a/source4/smb_server/session.c b/source4/smb_server/session.c
new file mode 100644
index 0000000000..5de30f423a
--- /dev/null
+++ b/source4/smb_server/session.c
@@ -0,0 +1,139 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Password and authentication handling
+   Copyright (C) Andrew Tridgell 1992-1998
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+   
+   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 "dlinklist.h"
+#include "smb_server/smb_server.h"
+
+
+/****************************************************************************
+init the tcon structures
+****************************************************************************/
+void smbsrv_vuid_init(struct smbsrv_connection *smb_conn)
+{
+	smb_conn->sessions.idtree_vuid = idr_init(smb_conn);
+}
+
+
+/****************************************************************************
+Find the session structure assoicated with a VUID (not one from an in-progress session setup)
+****************************************************************************/
+struct smbsrv_session *smbsrv_session_find(struct smbsrv_connection *smb_conn, uint16_t vuid)
+{
+	struct smbsrv_session *sess = idr_find(smb_conn->sessions.idtree_vuid, vuid);
+	if (sess && sess->finished_sesssetup) {
+		return sess;
+	}
+	return NULL;
+}
+
+/****************************************************************************
+ Find a VUID assoicated with an in-progress session setup
+****************************************************************************/
+struct smbsrv_session *smbsrv_session_find_sesssetup(struct smbsrv_connection *smb_conn, uint16_t vuid)
+{
+	struct smbsrv_session *sess = idr_find(smb_conn->sessions.idtree_vuid, vuid);
+	if (sess && !sess->finished_sesssetup) {
+		return sess;
+	}
+	return NULL;
+}
+
+/****************************************************************************
+invalidate a session
+****************************************************************************/
+static int smbsrv_session_destructor(void *p) 
+{
+	struct smbsrv_session *sess = p;
+	struct smbsrv_connection *smb_conn = sess->smb_conn;
+
+	/* clear the vuid from the 'cache' on each connection, and
+	   from the vuid 'owner' of connections */
+	/* REWRITE: conn_clear_vuid_cache(smb, vuid); */
+
+	smb_conn->sessions.num_validated_vuids--;
+
+	idr_remove(smb_conn->sessions.idtree_vuid, sess->vuid);
+	return 0;
+}
+
+/****************************************************************************
+invalidate a uid
+****************************************************************************/
+void smbsrv_invalidate_vuid(struct smbsrv_connection *smb_conn, uint16_t vuid)
+{
+	struct smbsrv_session *sess = smbsrv_session_find(smb_conn, vuid);
+	talloc_free(sess);
+}
+
+/**
+ *  register that a valid login has been performed, establish 'session'.
+ *  @param session_info The token returned from the authentication process (if the authentication has completed)
+ *   (now 'owned' by register_vuid)
+ *
+ *  @param smb_name The untranslated name of the user
+ *
+ *  @return Newly allocated vuid, biased by an offset. (This allows us to
+ *   tell random client vuid's (normally zero) from valid vuids.)
+ *
+ */
+
+struct smbsrv_session *smbsrv_register_session(struct smbsrv_connection *smb_conn,
+					       struct auth_session_info *session_info,
+					       struct gensec_security *gensec_ctx)
+{
+	struct smbsrv_session *sess = NULL;
+	int i;
+
+	/* Ensure no vuid gets registered in share level security. */
+	/* TODO: replace lp_security with a flag in smbsrv_connection */
+	if (lp_security() == SEC_SHARE)
+		return UID_FIELD_INVALID;
+
+	sess = talloc(smb_conn, struct smbsrv_session);
+	if (sess == NULL) {
+		DEBUG(0,("talloc(smb_conn->mem_ctx, struct smbsrv_session) failed\n"));
+		return sess;
+	}
+
+	ZERO_STRUCTP(sess);
+
+	i = idr_get_new_above(smb_conn->sessions.idtree_vuid, sess, VUID_OFFSET, UINT16_MAX);
+	if (i == -1) {
+		DEBUG(1,("ERROR! Out of connection structures\n"));	       
+		talloc_free(sess);
+		return NULL;
+	}
+	sess->vuid = i;
+
+	smb_conn->sessions.num_validated_vuids++;
+
+	/* use this to keep tabs on all our info from the authentication */
+	sess->session_info = talloc_reference(sess, session_info);
+	
+	sess->gensec_ctx = talloc_reference(sess, gensec_ctx);
+
+	sess->smb_conn = smb_conn;
+
+	talloc_set_destructor(sess, smbsrv_session_destructor);
+
+	return sess;
+}