static int tap_alloc(char *dev, size_t dev_size)

{

    int tap_fd, if_fd, ppa = -1;

    static int ip_fd = 0;

    char *ptr;



    static int arp_fd = 0;

    int ip_muxid, arp_muxid;

    struct strioctl  strioc_if, strioc_ppa;

    int link_type = I_PLINK;

    struct lifreq ifr;

    char actual_name[32] = "";



    memset(&ifr, 0x0, sizeof(ifr));



    if( *dev ){

       ptr = dev;

       while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;

       ppa = atoi(ptr);

    }



    /* Check if IP device was opened */

    if( ip_fd )

       close(ip_fd);



    TFR(ip_fd = open("/dev/udp", O_RDWR, 0));

    if (ip_fd < 0) {

       syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");

       return -1;

    }



    TFR(tap_fd = open("/dev/tap", O_RDWR, 0));

    if (tap_fd < 0) {

       syslog(LOG_ERR, "Can't open /dev/tap");

       return -1;

    }



    /* Assign a new PPA and get its unit number. */

    strioc_ppa.ic_cmd = TUNNEWPPA;

    strioc_ppa.ic_timout = 0;

    strioc_ppa.ic_len = sizeof(ppa);

    strioc_ppa.ic_dp = (char *)&ppa;

    if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)

       syslog (LOG_ERR, "Can't assign new interface");



    TFR(if_fd = open("/dev/tap", O_RDWR, 0));

    if (if_fd < 0) {

       syslog(LOG_ERR, "Can't open /dev/tap (2)");

       return -1;

    }

    if(ioctl(if_fd, I_PUSH, "ip") < 0){

       syslog(LOG_ERR, "Can't push IP module");

       return -1;

    }



    if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)

	syslog(LOG_ERR, "Can't get flags\n");



    snprintf (actual_name, 32, "tap%d", ppa);

    pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);



    ifr.lifr_ppa = ppa;

    /* Assign ppa according to the unit number returned by tun device */



    if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)

        syslog (LOG_ERR, "Can't set PPA %d", ppa);

    if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)

        syslog (LOG_ERR, "Can't get flags\n");

    /* Push arp module to if_fd */

    if (ioctl (if_fd, I_PUSH, "arp") < 0)

        syslog (LOG_ERR, "Can't push ARP module (2)");



    /* Push arp module to ip_fd */

    if (ioctl (ip_fd, I_POP, NULL) < 0)

        syslog (LOG_ERR, "I_POP failed\n");

    if (ioctl (ip_fd, I_PUSH, "arp") < 0)

        syslog (LOG_ERR, "Can't push ARP module (3)\n");

    /* Open arp_fd */

    TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));

    if (arp_fd < 0)

       syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");



    /* Set ifname to arp */

    strioc_if.ic_cmd = SIOCSLIFNAME;

    strioc_if.ic_timout = 0;

    strioc_if.ic_len = sizeof(ifr);

    strioc_if.ic_dp = (char *)&ifr;

    if (ioctl(arp_fd, I_STR, &strioc_if) < 0){

        syslog (LOG_ERR, "Can't set ifname to arp\n");

    }



    if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){

       syslog(LOG_ERR, "Can't link TAP device to IP");

       return -1;

    }



    if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)

        syslog (LOG_ERR, "Can't link TAP device to ARP");



    close (if_fd);



    memset(&ifr, 0x0, sizeof(ifr));

    pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);

    ifr.lifr_ip_muxid  = ip_muxid;

    ifr.lifr_arp_muxid = arp_muxid;



    if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)

    {

      ioctl (ip_fd, I_PUNLINK , arp_muxid);

      ioctl (ip_fd, I_PUNLINK, ip_muxid);

      syslog (LOG_ERR, "Can't set multiplexor id");

    }



    snprintf(dev, dev_size, "tap%d", ppa);

    return tap_fd;

}

static int tap_alloc(char *dev, size_t dev_size)

{

    int tap_fd, if_fd, ppa = -1;

    static int ip_fd = 0;

    char *ptr;



    static int arp_fd = 0;

    int ip_muxid, arp_muxid;

    struct strioctl  strioc_if, strioc_ppa;

    int link_type = I_PLINK;

    struct lifreq ifr;

    char actual_name[32] = "";



    memset(&ifr, 0x0, sizeof(ifr));



    if( *dev ){

       ptr = dev;

       while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;

       ppa = atoi(ptr);

    }



    

    if( ip_fd )

       close(ip_fd);



    TFR(ip_fd = open("/dev/udp", O_RDWR, 0));

    if (ip_fd < 0) {

       syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");

       return -1;

    }



    TFR(tap_fd = open("/dev/tap", O_RDWR, 0));

    if (tap_fd < 0) {

       syslog(LOG_ERR, "Can't open /dev/tap");

       return -1;

    }



    

    strioc_ppa.ic_cmd = TUNNEWPPA;

    strioc_ppa.ic_timout = 0;

    strioc_ppa.ic_len = sizeof(ppa);

    strioc_ppa.ic_dp = (char *)&ppa;

    if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)

       syslog (LOG_ERR, "Can't assign new interface");



    TFR(if_fd = open("/dev/tap", O_RDWR, 0));

    if (if_fd < 0) {

       syslog(LOG_ERR, "Can't open /dev/tap (2)");

       return -1;

    }

    if(ioctl(if_fd, I_PUSH, "ip") < 0){

       syslog(LOG_ERR, "Can't push IP module");

       return -1;

    }



    if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)

	syslog(LOG_ERR, "Can't get flags\n");



    snprintf (actual_name, 32, "tap%d", ppa);

    pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);



    ifr.lifr_ppa = ppa;

    



    if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)

        syslog (LOG_ERR, "Can't set PPA %d", ppa);

    if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)

        syslog (LOG_ERR, "Can't get flags\n");

    

    if (ioctl (if_fd, I_PUSH, "arp") < 0)

        syslog (LOG_ERR, "Can't push ARP module (2)");



    

    if (ioctl (ip_fd, I_POP, NULL) < 0)

        syslog (LOG_ERR, "I_POP failed\n");

    if (ioctl (ip_fd, I_PUSH, "arp") < 0)

        syslog (LOG_ERR, "Can't push ARP module (3)\n");

    

    TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));

    if (arp_fd < 0)

       syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");



    

    strioc_if.ic_cmd = SIOCSLIFNAME;

    strioc_if.ic_timout = 0;

    strioc_if.ic_len = sizeof(ifr);

    strioc_if.ic_dp = (char *)&ifr;

    if (ioctl(arp_fd, I_STR, &strioc_if) < 0){

        syslog (LOG_ERR, "Can't set ifname to arp\n");

    }



    if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){

       syslog(LOG_ERR, "Can't link TAP device to IP");

       return -1;

    }



    if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)

        syslog (LOG_ERR, "Can't link TAP device to ARP");



    close (if_fd);



    memset(&ifr, 0x0, sizeof(ifr));

    pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);

    ifr.lifr_ip_muxid  = ip_muxid;

    ifr.lifr_arp_muxid = arp_muxid;



    if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)

    {

      ioctl (ip_fd, I_PUNLINK , arp_muxid);

      ioctl (ip_fd, I_PUNLINK, ip_muxid);

      syslog (LOG_ERR, "Can't set multiplexor id");

    }



    snprintf(dev, dev_size, "tap%d", ppa);

    return tap_fd;

}

static int tap_alloc(char *dev, size_t dev_size)        syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");        return -1;        syslog(LOG_ERR, "Can't open /dev/tap");        return -1;        syslog (LOG_ERR, "Can't assign new interface");        syslog(LOG_ERR, "Can't open /dev/tap (2)");        return -1;        syslog(LOG_ERR, "Can't push IP module");        return -1; 	syslog(LOG_ERR, "Can't get flags\n");         syslog (LOG_ERR, "Can't set PPA %d", ppa);         syslog (LOG_ERR, "Can't get flags\n");         syslog (LOG_ERR, "Can't push ARP module (2)");         syslog (LOG_ERR, "I_POP failed\n");         syslog (LOG_ERR, "Can't push ARP module (3)\n");        syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");         syslog (LOG_ERR, "Can't set ifname to arp\n");        syslog(LOG_ERR, "Can't link TAP device to IP");        return -1;         syslog (LOG_ERR, "Can't link TAP device to ARP");       syslog (LOG_ERR, "Can't set multiplexor id");        return -1;
static int FUNC_0(char *VAR_0, size_t VAR_1)

{

    int VAR_2, VAR_3, VAR_4 = -1;

    static int VAR_5 = 0;

    char *VAR_6;



    static int VAR_7 = 0;

    int VAR_8, VAR_9;

    struct strioctl  VAR_10, VAR_11;

    int VAR_12 = I_PLINK;

    struct lifreq VAR_13;

    char VAR_14[32] = "";



    memset(&VAR_13, 0x0, sizeof(VAR_13));



    if( *VAR_0 ){

       VAR_6 = VAR_0;

       while( *VAR_6 && !qemu_isdigit((int)*VAR_6) ) VAR_6++;

       VAR_4 = atoi(VAR_6);

    }



    

    if( VAR_5 )

       close(VAR_5);



    TFR(VAR_5 = open("/VAR_0/udp", O_RDWR, 0));

    if (VAR_5 < 0) {

       syslog(LOG_ERR, "Can't open /VAR_0/ip (actually /VAR_0/udp)");

       return -1;

    }



    TFR(VAR_2 = open("/VAR_0/tap", O_RDWR, 0));

    if (VAR_2 < 0) {

       syslog(LOG_ERR, "Can't open /VAR_0/tap");

       return -1;

    }



    

    VAR_11.ic_cmd = TUNNEWPPA;

    VAR_11.ic_timout = 0;

    VAR_11.ic_len = sizeof(VAR_4);

    VAR_11.ic_dp = (char *)&VAR_4;

    if ((VAR_4 = ioctl (VAR_2, I_STR, &VAR_11)) < 0)

       syslog (LOG_ERR, "Can't assign new interface");



    TFR(VAR_3 = open("/VAR_0/tap", O_RDWR, 0));

    if (VAR_3 < 0) {

       syslog(LOG_ERR, "Can't open /VAR_0/tap (2)");

       return -1;

    }

    if(ioctl(VAR_3, I_PUSH, "ip") < 0){

       syslog(LOG_ERR, "Can't push IP module");

       return -1;

    }



    if (ioctl(VAR_3, SIOCGLIFFLAGS, &VAR_13) < 0)

	syslog(LOG_ERR, "Can't get flags\n");



    snprintf (VAR_14, 32, "tap%d", VAR_4);

    pstrcpy(VAR_13.lifr_name, sizeof(VAR_13.lifr_name), VAR_14);



    VAR_13.lifr_ppa = VAR_4;

    



    if (ioctl (VAR_3, SIOCSLIFNAME, &VAR_13) < 0)

        syslog (LOG_ERR, "Can't set PPA %d", VAR_4);

    if (ioctl(VAR_3, SIOCGLIFFLAGS, &VAR_13) <0)

        syslog (LOG_ERR, "Can't get flags\n");

    

    if (ioctl (VAR_3, I_PUSH, "arp") < 0)

        syslog (LOG_ERR, "Can't push ARP module (2)");



    

    if (ioctl (VAR_5, I_POP, NULL) < 0)

        syslog (LOG_ERR, "I_POP failed\n");

    if (ioctl (VAR_5, I_PUSH, "arp") < 0)

        syslog (LOG_ERR, "Can't push ARP module (3)\n");

    

    TFR(VAR_7 = open ("/VAR_0/tap", O_RDWR, 0));

    if (VAR_7 < 0)

       syslog (LOG_ERR, "Can't open %s\n", "/VAR_0/tap");



    

    VAR_10.ic_cmd = SIOCSLIFNAME;

    VAR_10.ic_timout = 0;

    VAR_10.ic_len = sizeof(VAR_13);

    VAR_10.ic_dp = (char *)&VAR_13;

    if (ioctl(VAR_7, I_STR, &VAR_10) < 0){

        syslog (LOG_ERR, "Can't set ifname to arp\n");

    }



    if((VAR_8 = ioctl(VAR_5, I_LINK, VAR_3)) < 0){

       syslog(LOG_ERR, "Can't link TAP device to IP");

       return -1;

    }



    if ((VAR_9 = ioctl (VAR_5, VAR_12, VAR_7)) < 0)

        syslog (LOG_ERR, "Can't link TAP device to ARP");



    close (VAR_3);



    memset(&VAR_13, 0x0, sizeof(VAR_13));

    pstrcpy(VAR_13.lifr_name, sizeof(VAR_13.lifr_name), VAR_14);

    VAR_13.lifr_ip_muxid  = VAR_8;

    VAR_13.lifr_arp_muxid = VAR_9;



    if (ioctl (VAR_5, SIOCSLIFMUXID, &VAR_13) < 0)

    {

      ioctl (VAR_5, I_PUNLINK , VAR_9);

      ioctl (VAR_5, I_PUNLINK, VAR_8);

      syslog (LOG_ERR, "Can't set multiplexor id");

    }



    snprintf(VAR_0, VAR_1, "tap%d", VAR_4);

    return VAR_2;

}

static int FUNC_0(char *VAR_0, size_t VAR_1)
{ int VAR_2, VAR_3, VAR_4 = -1; static int VAR_5 = 0; char *VAR_6; static int VAR_7 = 0; int VAR_8, VAR_9; struct strioctl  VAR_10, VAR_11; int VAR_12 = I_PLINK; struct lifreq VAR_13; char VAR_14[32] = ""; memset(&VAR_13, 0x0, sizeof(VAR_13)); if( *VAR_0 ){ VAR_6 = VAR_0; while( *VAR_6 && !qemu_isdigit((int)*VAR_6) ) VAR_6++; VAR_4 = atoi(VAR_6); } if( VAR_5 )
close(VAR_5); TFR(VAR_5 = open("/VAR_0/udp", O_RDWR, 0)); if (VAR_5 < 0) { syslog(LOG_ERR, "Can't open /VAR_0/ip (actually /VAR_0/udp)"); return -1; } TFR(VAR_2 = open("/VAR_0/tap", O_RDWR, 0)); if (VAR_2 < 0) { syslog(LOG_ERR, "Can't open /VAR_0/tap"); return -1; } VAR_11.ic_cmd = TUNNEWPPA; VAR_11.ic_timout = 0; VAR_11.ic_len = sizeof(VAR_4); VAR_11.ic_dp = (char *)&VAR_4; if ((VAR_4 = ioctl (VAR_2, I_STR, &VAR_11)) < 0)
syslog (LOG_ERR, "Can't assign new interface"); TFR(VAR_3 = open("/VAR_0/tap", O_RDWR, 0)); if (VAR_3 < 0) { syslog(LOG_ERR, "Can't open /VAR_0/tap (2)"); return -1; } if(ioctl(VAR_3, I_PUSH, "ip") < 0){ syslog(LOG_ERR, "Can't push IP module"); return -1; } if (ioctl(VAR_3, SIOCGLIFFLAGS, &VAR_13) < 0)
syslog(LOG_ERR, "Can't get flags\n"); snprintf (VAR_14, 32, "tap%d", VAR_4); pstrcpy(VAR_13.lifr_name, sizeof(VAR_13.lifr_name), VAR_14); VAR_13.lifr_ppa = VAR_4; if (ioctl (VAR_3, SIOCSLIFNAME, &VAR_13) < 0)
syslog (LOG_ERR, "Can't set PPA %d", VAR_4); if (ioctl(VAR_3, SIOCGLIFFLAGS, &VAR_13) <0)
syslog (LOG_ERR, "Can't get flags\n"); if (ioctl (VAR_3, I_PUSH, "arp") < 0)
syslog (LOG_ERR, "Can't push ARP module (2)"); if (ioctl (VAR_5, I_POP, NULL) < 0)
syslog (LOG_ERR, "I_POP failed\n"); if (ioctl (VAR_5, I_PUSH, "arp") < 0)
syslog (LOG_ERR, "Can't push ARP module (3)\n"); TFR(VAR_7 = open ("/VAR_0/tap", O_RDWR, 0)); if (VAR_7 < 0)
syslog (LOG_ERR, "Can't open %s\n", "/VAR_0/tap"); VAR_10.ic_cmd = SIOCSLIFNAME; VAR_10.ic_timout = 0; VAR_10.ic_len = sizeof(VAR_13); VAR_10.ic_dp = (char *)&VAR_13; if (ioctl(VAR_7, I_STR, &VAR_10) < 0){ syslog (LOG_ERR, "Can't set ifname to arp\n"); } if((VAR_8 = ioctl(VAR_5, I_LINK, VAR_3)) < 0){ syslog(LOG_ERR, "Can't link TAP device to IP"); return -1; } if ((VAR_9 = ioctl (VAR_5, VAR_12, VAR_7)) < 0)
syslog (LOG_ERR, "Can't link TAP device to ARP"); close (VAR_3); memset(&VAR_13, 0x0, sizeof(VAR_13)); pstrcpy(VAR_13.lifr_name, sizeof(VAR_13.lifr_name), VAR_14); VAR_13.lifr_ip_muxid  = VAR_8; VAR_13.lifr_arp_muxid = VAR_9; if (ioctl (VAR_5, SIOCSLIFMUXID, &VAR_13) < 0)
{ ioctl (VAR_5, I_PUNLINK , VAR_9); ioctl (VAR_5, I_PUNLINK, VAR_8); syslog (LOG_ERR, "Can't set multiplexor id"); } snprintf(VAR_0, VAR_1, "tap%d", VAR_4); return VAR_2; }