C++ (Cpp) ipcom_mask_to_prefixlen Examples

Example #1

File: ipnet_configd.c Project: HuaweiHonor4C/kernel_hi6210sft_mm

/*
 *===========================================================================
 *                    ipnet_config_add_inet_addr
 *===========================================================================
 * Description:
 * Parameters:
 * Returns:
 *
 */
IP_STATIC int
ipnet_config_add_inet_addr(Ip_fd fd, char *ifname, char *option)
{
    char *inet_addr;
    char *prefix_len;
    char *argv[] = {
        "ifconfig",
        "-silent",
        IP_NULL,
        "inet",
        "add",
        IP_NULL,
        IP_NULL,
        IP_NULL,
        IP_NULL
    };
    int argc = 5;
    char inet_addr_str[IP_INET_ADDRSTRLEN];
    char inet_prefix_len_str[8];

    argv[2] = ifname;

    inet_addr = ipcom_strtok_r(option, " \t/", &option);
    if (inet_addr == IP_NULL)
    {
        IPCOM_LOG0(ERR, "inet address is missing or format is invalid");
        return -IP_ERRNO_EINVAL;
    }

    if (ipcom_strcmp(inet_addr, "dhcp") == 0)
    {
        struct Ip_ifreq  ifreq;

    use_dhcp:
        ipcom_strcpy(ifreq.ifr_name, ifname);
        ifreq.ifr_ifru.ifru_opt = 1;

		if (ipcom_socketioctl(fd, IP_SIOCXSDHCPRUNNING, &ifreq) < 0)
        {
            IPCOM_LOG1(ERR, "Failed to enable DHCP on %s", ifname);
            return ipcom_errno;
        }
        return 0;
    }

#ifdef IPNET_USE_RARP
    if (ipcom_strcmp(inet_addr, "rarp") == 0)
    {
        struct Ip_ethreq  ethreq;

        ipcom_strcpy(ethreq.ethr_name, ifname);
        ethreq.ethru.rarp = -1;

		if (ipcom_socketioctl(fd, IP_SIOCXETHSRARP, &ethreq) < 0)
        {
            IPCOM_LOG1(ERR, "Failed to enable RARPP on %s", ifname);
            return ipcom_errno;
        }
        return 0;
    }
#endif /* IPNET_USE_RARP */

    if (ipcom_strcmp(inet_addr, "driver") == 0)
    {
        /* Get the IPv4 address to use from the driver */
        struct Ip_ethreq ethreq;

        ipcom_strcpy(ethreq.ethr_name, ifname);
        if (ipcom_socketioctl(fd, IP_SIOCXETHGINET, &ethreq) < 0)
        {
            IPCOM_LOG1(ERR, "Failed to read the IPv4 address from the driver for %s", ifname);
            return ipcom_errno;
        }
        if (ethreq.ethru.inet.addr.s_addr == 0xffffffff)
            goto use_dhcp;
        inet_addr = inet_addr_str;
        (void) ipcom_inet_ntop(IP_AF_INET, &ethreq.ethru.inet.addr,
            inet_addr_str, sizeof(inet_addr_str));

        prefix_len = inet_prefix_len_str;
        ipcom_snprintf(inet_prefix_len_str, sizeof(inet_prefix_len_str), "%d",
            ipcom_mask_to_prefixlen(&ethreq.ethru.inet.mask, 32));
    }
    else
    {
        prefix_len = ipcom_strtok_r(option, " \t/", &option);
        if (prefix_len == IP_NULL)
        {
            IPCOM_LOG0(ERR, "prefix len is missing or format is invalid");
            return -IP_ERRNO_EINVAL;
        }
    }

    argv[argc++] = inet_addr;
    argv[argc++] = "prefixlen";
    argv[argc++] = prefix_len;

    return ipnet_config_cmd_ifconfig(argc, argv);
}

Example #2

File: ipcom_mask.c Project: rgmabs19357/Huawei-

/*
 *===========================================================================
 *                    ipcom_sockaddr_to_prefixlen
 *===========================================================================
 * Description: Returns the number of leading '1' in the mask.
 * Parameters:  sa - The mask.
 * Returns:
 *
 */
IP_PUBLIC int
ipcom_sockaddr_to_prefixlen(struct Ip_sockaddr *sa)
{
    int af;

    af = sa->sa_family;
#ifdef IPCOM_USE_INET
    if (af == IP_AF_INET)
    {
        return ipcom_mask_to_prefixlen(
            &((struct Ip_sockaddr_in *) sa)->sin_addr,
            sizeof(struct Ip_in_addr) * 8);
    }
#endif /* IPCOM_USE_INET */

#ifdef IPCOM_USE_INET6
    if (af == IP_AF_INET6)
    {
        return ipcom_mask_to_prefixlen(
            &((struct Ip_sockaddr_in6 *) sa)->sin6_addr,
            sizeof(struct Ip_in6_addr) * 8);
    }
#endif /* IPCOM_USE_INET6 */

    IP_PANIC2();
    return -IP_ERRNO_EAFNOSUPPORT;
}