/*
 * Here we sort out incoming packets from the target relayed via rvinterf.
 */

#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "pktmux.h"
#include "limits.h"
#include "localsock.h"
#include "localtypes.h"
#include "etm.h"
#include "exitcodes.h"

extern u_char rvi_msg[];
extern int rvi_msg_len;

int got_tm_response;

static void
print_etm_trace()
{
	char buf[MAX_PKT_FROM_TARGET*4];

	strcpy(buf, "ETM Tr: ");
	safe_print_trace(rvi_msg + 7, rvi_msg_len - 7, buf + 8);
	async_msg_output(buf);
}

static void
process_rvt()
{
	u32 useid;

	if (rvi_msg_len < 7) {
		tty_cleanup();
		fprintf(stderr, "Error: rvinterf sent us an invalid RVT msg\n");
		exit(ERROR_RVINTERF);
	}
	useid = rvi_msg[2] << 24 | rvi_msg[3] << 16 | rvi_msg[4] << 8
		| rvi_msg[5];
	switch (useid) {
	case 0:
		handle_useid_0();
		return;
	case ETM_USE_ID:
		print_etm_trace();
		return;
	default:
		tty_cleanup();
		fprintf(stderr, "unexpected fwd of USEID %08X from rvinterf\n",
			useid);
		exit(ERROR_RVINTERF);
	}
}

void
process_pkt_from_target()
{
	switch (rvi_msg[1]) {
	case RVT_RV_HEADER:
		process_rvt();
		return;
	case RVT_TM_HEADER:
		etm_packet_rx();
		got_tm_response = 1;
		return;
	default:
		tty_cleanup();
		fprintf(stderr, "unexpected fwd of MUX %02X from rvinterf\n",
			rvi_msg[1]);
		exit(ERROR_RVINTERF);
	}
}