libcli/smb: add smbXcli_session_is_authenticated()

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Michael Adam <obnox@samba.org>

2 files changed, 25 insertions, 0 deletions

diff --git a/libcli/smb/smbXcli_base.c b/libcli/smb/smbXcli_base.c
index 113699c6b71..a7cc061b2f5 100644
--- a/libcli/smb/smbXcli_base.c
+++ b/libcli/smb/smbXcli_base.c
@@ -4641,6 +4641,30 @@ struct smbXcli_session *smbXcli_session_copy(TALLOC_CTX *mem_ctx,
 	return session;
 }
 
+bool smbXcli_session_is_authenticated(struct smbXcli_session *session)
+{
+	const DATA_BLOB *application_key;
+
+	if (session->conn == NULL) {
+		return false;
+	}
+
+	/*
+	 * If we have an application key we had a session key negotiated
+	 * at auth time.
+	 */
+	if (session->conn->protocol >= PROTOCOL_SMB2_02) {
+		application_key = &session->smb2->application_key;
+	} else {
+		application_key = &session->smb1.application_key;
+	}
+
+	if (application_key->length == 0) {
+		return false;
+	}
+
+	return true;
+}
 
 NTSTATUS smbXcli_session_application_key(struct smbXcli_session *session,
 					 TALLOC_CTX *mem_ctx,
diff --git a/libcli/smb/smbXcli_base.h b/libcli/smb/smbXcli_base.h
index e0c90b59d4f..25183a26ac7 100644
--- a/libcli/smb/smbXcli_base.h
+++ b/libcli/smb/smbXcli_base.h
@@ -363,6 +363,7 @@ struct smbXcli_session *smbXcli_session_create(TALLOC_CTX *mem_ctx,
 					       struct smbXcli_conn *conn);
 struct smbXcli_session *smbXcli_session_copy(TALLOC_CTX *mem_ctx,
 					       struct smbXcli_session *src);
+bool smbXcli_session_is_authenticated(struct smbXcli_session *session);
 NTSTATUS smbXcli_session_application_key(struct smbXcli_session *session,
 					 TALLOC_CTX *mem_ctx,
 					 DATA_BLOB *key);