initial checkin of some c-language code to parse Sierra Wireless HAPC

1 files changed, 55 insertions, 0 deletions

diff --git a/hapc_test.c b/hapc_test.c
new file mode 100644
index 0000000..a240c14
--- /dev/null
+++ b/hapc_test.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+
+#include "hapc_frame.h"
+
+const uint8_t test_frame[] = { 0xAA, 0x10, 0x58, 0x02, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0x01, 0x00, 0x13 };
+const uint8_t resp_frame[] = { 0xAA, 0x20, 0x58, 0x02, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 0x00, 0x00, 0x00, 0x82,
+			       0x18, 0x81, 0x00, 0x00, 0x20, 0x03, 0x00, 0x09, 0x08, 0x91, 0x94, 0x58, 0x16, 0x89, 0x63, 0x07, 0xf2, 0x0d };
+
+static void dump_frame_object(const struct hapc_flash_obj_hdr *foh, unsigned int len)
+{
+	unsigned int payload_len = len - sizeof(*foh);
+	printf("obj_id=0x%08x, mask=0x%08x, total_size=%d, block_size=%d, offset_block=%d, status=%s, data=%s\n",
+		foh->obj_id, foh->mask, foh->total_size, foh->block_size, foh->offset_block,
+		get_value_string(hapc_obj_status_names, foh->obj_status & 0x7f), osmo_hexdump(foh->data, payload_len));
+}
+
+static uint8_t compute_checksum(const uint8_t *data, unsigned int len)
+{
+	unsigned int i;
+	uint8_t checksum = 0;
+
+	for (i = 0; i < len; i++)
+		checksum += data[i];
+
+	return checksum;
+}
+
+void dump_frame(const struct hapc_msg_hdr *hdr)
+{
+	unsigned int len = hapc_payload_len(hdr);
+
+	printf("len=%4u, flow_id=%s: ", len,
+		get_value_string(hapc_flow_names, hdr->flow_id));
+
+	printf("checksum=0x%02x, computed=0x%02x\n",
+		hapc_frame_csum(hdr), compute_checksum((const uint8_t *) hdr, sizeof(*hdr)+len));
+
+	switch (hdr->flow_id) {
+	case HAPC_FLOW_OBJECT:
+		dump_frame_object((const struct hapc_flash_obj_hdr *) hdr->data, len - sizeof(*hdr));
+		break;
+	default:
+		printf("\n");
+		break;
+	}
+}
+
+int main(int argc, char **argv)
+{
+	const struct hapc_msg_hdr *hdr = (const struct hapc_msg_hdr *) test_frame;
+	dump_frame(hdr);
+
+	hdr = (const struct hapc_msg_hdr *) resp_frame;
+	dump_frame(hdr);
+}