1 files changed, 51 insertions, 0 deletions
diff --git a/src/apdu.c b/src/apdu.c
new file mode 100644
index 0000000..4ff0c26
--- /dev/null
+++ b/src/apdu.c
@@ -0,0 +1,51 @@
+/*
+ * ISO 7816 APDU handler routines (card side)
+ *
+ * Copyright (C) 2012 Harald Welte <laforge@gnumonks.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 or
+ * (at your option) version 3 of the License.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "apdu.h"
+
+
+static int apdu_handle_cls(const struct apdu_class *ac, struct apdu_parser *ap,
+			   int mode, const struct apdu_hdr *hdr)
+{
+	int i;
+
+	for (i = 0; i < ac->num_cmds; i++) {
+		struct apdu_cmd *cmd = &ac->cmds[i];
+		if (cmd->ins == hdr->ins)
+			return cmd->cb(ap, mode, hdr);
+	}
+
+	return RV_SW(0x6D00);
+}
+
+
+int apdu_handle_hdr(struct apdu_parser *ap, struct apdu_hdr *hdr)
+{
+	int i;
+
+	/* iterate over all registered classes and check for a CLA match */
+	for (i = 0; i < ap->num_classes; i++) {
+		const struct apdu_class *ac = &ap->classes[i];
+		/* if CLA matches, iterate over INS array and call callback */
+		if (hdr->cla & ac->mask == ac->compare)
+			return apdu_handle_cls(ac, ap, AP_MODE_T0_HDR, hdr);
+	}
+
+	return RV_SW(0x6E00);
+}