#include <config.h>

#include "fuzzer.h"

#include "dp-packet.h"

#include "openvswitch/ofp-print.h"

#include "openvswitch/ofpbuf.h"

#include "openvswitch/vlog.h"

int

LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

    if (size < sizeof(struct ofp_header)) {

        return 0;

    }

    static bool isInit = false;

    if (!isInit) {

        vlog_set_verbosity("off");

        isInit = true;

    }

    struct ofpbuf b;

    ofpbuf_use_const(&b, data, size);

    for (;;) {

        /* Check if ofpbuf contains ofp header. */

        struct ofp_header *oh = ofpbuf_at(&b, 0, sizeof *oh);

        if (!oh) {

            break;

        }

        /* Check if length is geq than lower bound. */

        size_t length = ntohs(oh->length);

        if (length < sizeof *oh) {

            break;

        }

        /* Check if ofpbuf contains payload. */

        size_t tail_len = length - sizeof *oh;

        void *tail = ofpbuf_at(&b, sizeof *oh, tail_len);

        if (!tail) {

            break;

        }

        ofp_print(stdout, ofpbuf_pull(&b, length), length, NULL, NULL, 2);

    }

    ofpbuf_uninit(&b);

    return 0;

}