#include <arpa/inet.h>#include <linux/netfilter.h>#include <linux/ip.h>#include <stdio.h>#include <stdlib.h>#include "nfq.h"#include "nfq_common.h"#include "nfq_version.h"const char * nfq_bindings_version(void){        return NFQ_BINDINGS_VERSION;}int queue_open(struct queue *self){        self->_h = nfq_open();        self->_qh = NULL;        return (self->_h != NULL);}void queue_close(struct queue *self){        nfq_close(self->_h);        self->_qh = NULL;        self->_h = NULL;        self->_cb = NULL;}int queue_bind(struct queue *self){        if (nfq_bind_pf(self->_h, AF_INET)) {                raise_swig_error("error during nfq_bind_pf()");                 return -1;        }        return 0;}int queue_unbind(struct queue *self){        if (nfq_unbind_pf(self->_h, AF_INET)) {                raise_swig_error("error during nfq_unbind_pf()");                 return -1;        }        return 0;}int queue_create_queue(struct queue *self, int queue_num){        if (self->_cb == NULL) {               raise_swig_error("Error: no callback set");                return -1;        }        self->_qh = nfq_create_queue(self->_h, 0, &swig_nfq_callback, (void*)self->_cb);        /*printf("callback argument: %p\n",(void*)self->_cb);*/        if (self->_qh == NULL) {               raise_swig_error("error during nfq_create_queue()");                return -1;        }        return 0;}int queue_fast_open(struct queue *self, int queue_num){        int ret;        if (self->_cb == NULL) {               raise_swig_error("Error: no callback set");                return -1;        }        ret = queue_open(self);        if (!ret)                return -1;        queue_unbind(self);        ret = queue_bind(self);        if (ret < 0) {                queue_close(self);                return -1;        }        ret = queue_create_queue(self,queue_num);        if (ret < 0) {                queue_unbind(self);                queue_close(self);                return -1;        }        return 0;}int queue_set_queue_maxlen(struct queue *self, int maxlen){        int ret;        ret = nfq_set_queue_maxlen(self->_qh, maxlen);        if (ret < 0) {                raise_swig_error("error during nfq_set_queue_maxlen()\n");        }        return ret;}int queue_try_run(struct queue *self){        int fd;        int rv;        char buf[4096];        struct nfnl_handle *nh;        printf("setting copy_packet mode\n");        if (nfq_set_mode(self->_qh, NFQNL_COPY_PACKET, 0xffff) < 0) {                raise_swig_error("can't set packet_copy mode\n");                exit(1);        }        nh = nfq_nfnlh(self->_h);        fd = nfnl_fd(nh);        while ((rv = recv(fd, buf, sizeof(buf), 0)) && rv >= 0) {                nfq_handle_packet(self->_h, buf, rv);        }        printf("exiting try_run\n");        return 0;}int payload_get_nfmark(struct payload *self){        return nfq_get_nfmark(self->nfad);}int payload_get_indev(struct payload *self){        return nfq_get_indev(self->nfad);}int payload_get_outdev(struct payload *self){        return nfq_get_outdev(self->nfad);}