C++ (Cpp) PCAP_FD Examples

Example #1

File: pcap_user.c Project: openube/android_kernel_sony_c2305

static int pcap_open(void *data)
{
	struct pcap_data *pri = data;
	__u32 netmask;
	int err;

	if (pri->pcap == NULL)
		return -ENODEV;

	if (pri->filter != NULL) {
		err = dev_netmask(pri->dev, &netmask);
		if (err < 0) {
			printk(UM_KERN_ERR "pcap_open : dev_netmask failed\n");
			return -EIO;
		}

		pri->compiled = uml_kmalloc(sizeof(struct bpf_program),
					UM_GFP_KERNEL);
		if (pri->compiled == NULL) {
			printk(UM_KERN_ERR "pcap_open : kmalloc failed\n");
			return -ENOMEM;
		}

		err = pcap_compile(pri->pcap,
				   (struct bpf_program *) pri->compiled,
				   pri->filter, pri->optimize, netmask);
		if (err < 0) {
			printk(UM_KERN_ERR "pcap_open : pcap_compile failed - "
			       "'%s'\n", pcap_geterr(pri->pcap));
			goto out;
		}

		err = pcap_setfilter(pri->pcap, pri->compiled);
		if (err < 0) {
			printk(UM_KERN_ERR "pcap_open : pcap_setfilter "
			       "failed - '%s'\n", pcap_geterr(pri->pcap));
			goto out;
		}
	}

	return PCAP_FD(pri->pcap);

 out:
	kfree(pri->compiled);
	return -EIO;
}

Example #2

File: pcap_user.c Project: 12019/hg556a_source

static int pcap_open(void *data)
{
	struct pcap_data *pri = data;
	__u32 netmask;
	int err;

	if(pri->pcap == NULL)
		return(-ENODEV);

	if(pri->filter != NULL){
		err = dev_netmask(pri->dev, &netmask);
		if(err < 0){
			printk("pcap_open : dev_netmask failed\n");
			return(-EIO);
		}

		pri->compiled = um_kmalloc(sizeof(struct bpf_program));
		if(pri->compiled == NULL){
			printk("pcap_open : kmalloc failed\n");
			return(-ENOMEM);
		}
		
		err = pcap_compile(pri->pcap, 
				   (struct bpf_program *) pri->compiled, 
				   pri->filter, pri->optimize, netmask);
		if(err < 0){
			printk("pcap_open : pcap_compile failed - '%s'\n", 
			       pcap_geterr(pri->pcap));
			return(-EIO);
		}

		err = pcap_setfilter(pri->pcap, pri->compiled);
		if(err < 0){
			printk("pcap_open : pcap_setfilter failed - '%s'\n", 
			       pcap_geterr(pri->pcap));
			return(-EIO);
		}
	}
	
	return(PCAP_FD(pri->pcap));
}