#include <vnet/feature/feature.h>
#include <vnet/devices/devices.h>
+#include <vnet/unix/tuntap.h>
#include <vnet/unix/tapcli.h>
static vnet_device_class_t tapcli_dev_class;
return ti;
}
+typedef struct
+{
+ ip6_address_t addr;
+ u32 mask_width;
+ unsigned int ifindex;
+} ip6_ifreq_t;
+
/**
* @brief Connect a TAP interface
*
* @param vm - vlib_main_t
- * @param intfc_name - u8
- * @param hwaddr_arg - u8
- * @param sw_if_indexp - u32
+ * @param ap - vnet_tap_connect_args_t
*
* @return rc - int
*
*/
-int vnet_tap_connect (vlib_main_t * vm, u8 * intfc_name, u8 *hwaddr_arg,
- u32 * sw_if_indexp)
+int vnet_tap_connect (vlib_main_t * vm, vnet_tap_connect_args_t *ap)
{
tapcli_main_t * tm = &tapcli_main;
tapcli_interface_t * ti = NULL;
return VNET_API_ERROR_SYSCALL_ERROR_1;
memset (&ifr, 0, sizeof (ifr));
- strncpy(ifr.ifr_name, (char *) intfc_name, sizeof (ifr.ifr_name)-1);
+ strncpy(ifr.ifr_name, (char *) ap->intfc_name, sizeof (ifr.ifr_name)-1);
ifr.ifr_flags = flags;
if (ioctl (dev_net_tun_fd, TUNSETIFF, (void *)&ifr) < 0)
{
struct sockaddr_ll sll;
memset (&ifr, 0, sizeof(ifr));
- strncpy (ifr.ifr_name, (char *) intfc_name, sizeof (ifr.ifr_name)-1);
+ strncpy (ifr.ifr_name, (char *) ap->intfc_name, sizeof (ifr.ifr_name)-1);
if (ioctl (dev_tap_fd, SIOCGIFINDEX, &ifr) < 0 )
{
rv = VNET_API_ERROR_SYSCALL_ERROR_4;
goto error;
}
+ if (ap->ip4_address_set)
+ {
+ struct sockaddr_in sin;
+ /* ip4: mask defaults to /24 */
+ u32 mask = clib_host_to_net_u32 (0xFFFFFF00);
+
+ sin.sin_family = AF_INET;
+ sin.sin_port = 0;
+ sin.sin_addr.s_addr = ap->ip4_address->as_u32;
+ memcpy (&ifr.ifr_ifru.ifru_addr, &sin, sizeof (sin));
+
+ if (ioctl (dev_tap_fd, SIOCSIFADDR, &ifr) < 0)
+ {
+ rv = VNET_API_ERROR_SYSCALL_ERROR_10;
+ goto error;
+ }
+
+ if (ap->ip4_mask_width > 0 && ap->ip4_mask_width < 33)
+ {
+ mask = ~0;
+ mask <<= (32 - ap->ip4_mask_width);
+ }
+
+ mask = clib_host_to_net_u32(mask);
+ sin.sin_family = AF_INET;
+ sin.sin_port = 0;
+ sin.sin_addr.s_addr = mask;
+ memcpy (&ifr.ifr_ifru.ifru_addr, &sin, sizeof (sin));
+
+ if (ioctl (dev_tap_fd, SIOCSIFNETMASK, &ifr) < 0)
+ {
+ rv = VNET_API_ERROR_SYSCALL_ERROR_10;
+ goto error;
+ }
+ }
+
+ if (ap->ip6_address_set)
+ {
+ struct ifreq ifr2;
+ ip6_ifreq_t ifr6;
+ int sockfd6;
+
+ sockfd6 = socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP);
+ if (sockfd6 < 0)
+ {
+ rv = VNET_API_ERROR_SYSCALL_ERROR_10;
+ goto error;
+ }
+
+ memset (&ifr2, 0, sizeof(ifr));
+ strncpy (ifr2.ifr_name, (char *) ap->intfc_name,
+ sizeof (ifr2.ifr_name)-1);
+ if (ioctl (sockfd6, SIOCGIFINDEX, &ifr2) < 0 )
+ {
+ close (sockfd6);
+ rv = VNET_API_ERROR_SYSCALL_ERROR_4;
+ goto error;
+ }
+
+ memcpy (&ifr6.addr, ap->ip6_address, sizeof (ip6_address_t));
+ ifr6.mask_width = ap->ip6_mask_width;
+ ifr6.ifindex = ifr2.ifr_ifindex;
+
+ if (ioctl (sockfd6, SIOCSIFADDR, &ifr6) < 0)
+ {
+ close (sockfd6);
+ clib_unix_warning ("ifr6");
+ rv = VNET_API_ERROR_SYSCALL_ERROR_10;
+ goto error;
+ }
+ close (sockfd6);
+ }
+
ti = tapcli_get_new_tapif();
ti->per_interface_next_index = ~0;
- if (hwaddr_arg != 0)
- clib_memcpy(hwaddr, hwaddr_arg, 6);
+ if (ap->hwaddr_arg != 0)
+ clib_memcpy(hwaddr, ap->hwaddr_arg, 6);
else
{
f64 now = vlib_time_now(vm);
hw->max_supported_packet_bytes = TAP_MTU_MAX;
hw->max_l3_packet_bytes[VLIB_RX] = hw->max_l3_packet_bytes[VLIB_TX] = hw->max_supported_packet_bytes - sizeof(ethernet_header_t);
ti->sw_if_index = hw->sw_if_index;
- if (sw_if_indexp)
- *sw_if_indexp = hw->sw_if_index;
+ if (ap->sw_if_indexp)
+ *(ap->sw_if_indexp) = hw->sw_if_index;
}
ti->active = 1;
* @return rc - int
*
*/
-int vnet_tap_connect_renumber (vlib_main_t * vm, u8 * intfc_name,
- u8 *hwaddr_arg, u32 * sw_if_indexp,
- u8 renumber, u32 custom_dev_instance)
+int vnet_tap_connect_renumber (vlib_main_t * vm,
+ vnet_tap_connect_args_t *ap)
{
- int rv = vnet_tap_connect(vm, intfc_name, hwaddr_arg, sw_if_indexp);
+ int rv = vnet_tap_connect(vm, ap);
- if (!rv && renumber)
- vnet_interface_name_renumber (*sw_if_indexp, custom_dev_instance);
+ if (!rv && ap->renumber)
+ vnet_interface_name_renumber (*(ap->sw_if_indexp), ap->custom_dev_instance);
- return rv;
+ return rv;
}
/**
* @return rc - int
*
*/
-int vnet_tap_modify (vlib_main_t * vm, u32 orig_sw_if_index,
- u8 * intfc_name, u8 *hwaddr_arg,
- u32 * sw_if_indexp,
- u8 renumber, u32 custom_dev_instance)
+int vnet_tap_modify (vlib_main_t * vm, vnet_tap_connect_args_t *ap)
{
- int rv = vnet_tap_delete (vm, orig_sw_if_index);
+ int rv = vnet_tap_delete (vm, ap->orig_sw_if_index);
if (rv)
- return rv;
+ return rv;
- rv = vnet_tap_connect_renumber(vm, intfc_name, hwaddr_arg, sw_if_indexp,
- renumber, custom_dev_instance);
+ rv = vnet_tap_connect_renumber(vm, ap);
return rv;
}
u32 new_sw_if_index = ~0;
int user_hwaddr = 0;
u8 hwaddr[6];
+ vnet_tap_connect_args_t _a, *ap= &_a;
if (tm->is_disabled)
{
user_hwaddr = 1;
- int rc = vnet_tap_modify (vm, sw_if_index, intfc_name,
- (user_hwaddr == 1 ? hwaddr : 0),
- &new_sw_if_index, 0, 0);
+ memset (ap, 0, sizeof(*ap));
+ ap->orig_sw_if_index = sw_if_index;
+ ap->intfc_name = intfc_name;
+ ap->sw_if_indexp = &new_sw_if_index;
+ if (user_hwaddr)
+ ap->hwaddr_arg = hwaddr;
+
+ int rc = vnet_tap_modify (vm, ap);
if (!rc) {
vlib_cli_output (vm, "Modified %U for Linux tap '%s'",
format_vnet_sw_if_index_name, tm->vnet_main,
- new_sw_if_index, intfc_name);
+ *(ap->sw_if_indexp), ap->intfc_name);
} else {
vlib_cli_output (vm, "Error during modification of tap interface. (rc: %d)", rc);
}
vlib_cli_command_t * cmd)
{
u8 * intfc_name;
+ unformat_input_t _line_input, *line_input = &_line_input;
+ vnet_tap_connect_args_t _a, *ap= &_a;
tapcli_main_t * tm = &tapcli_main;
u8 hwaddr[6];
u8 *hwaddr_arg = 0;
u32 sw_if_index;
+ ip4_address_t ip4_address;
+ int ip4_address_set = 0;
+ ip6_address_t ip6_address;
+ int ip6_address_set = 0;
+ u32 ip4_mask_width = 0;
+ u32 ip6_mask_width = 0;
if (tm->is_disabled)
+ return clib_error_return (0, "device disabled...");
+
+ if (!unformat_user (input, unformat_line_input, line_input))
+ return 0;
+
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
- return clib_error_return (0, "device disabled...");
+ if (unformat(line_input, "hwaddr %U", unformat_ethernet_address,
+ &hwaddr))
+ hwaddr_arg = hwaddr;
+
+ /* It is here for backward compatibility */
+ else if (unformat(line_input, "hwaddr random"))
+ ;
+
+ else if (unformat (line_input, "address %U/%d",
+ unformat_ip4_address, &ip4_address, &ip4_mask_width))
+ ip4_address_set = 1;
+
+ else if (unformat (line_input, "address %U/%d",
+ unformat_ip6_address, &ip6_address, &ip6_mask_width))
+ ip6_address_set = 1;
+
+ else if (unformat (line_input, "%s", &intfc_name))
+ ;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
}
-
- if (unformat (input, "%s", &intfc_name))
- ;
- else
- return clib_error_return (0, "unknown input `%U'",
- format_unformat_error, input);
- if (unformat(input, "hwaddr %U", unformat_ethernet_address,
- &hwaddr))
- hwaddr_arg = hwaddr;
+ memset (ap, 0, sizeof (*ap));
- /* It is here for backward compatibility */
- if (unformat(input, "hwaddr random"))
- ;
+ ap->intfc_name = intfc_name;
+ ap->hwaddr_arg = hwaddr_arg;
+ if (ip4_address_set)
+ {
+ ap->ip4_address = &ip4_address;
+ ap->ip4_mask_width = ip4_mask_width;
+ ap->ip4_address_set = 1;
+ }
+ if (ip6_address_set)
+ {
+ ap->ip6_address = &ip6_address;
+ ap->ip6_mask_width = ip6_mask_width;
+ ap->ip6_address_set = 1;
+ }
- int rv = vnet_tap_connect(vm, intfc_name, hwaddr_arg, &sw_if_index);
- if (rv) {
- switch (rv) {
- case VNET_API_ERROR_SYSCALL_ERROR_1:
- vlib_cli_output (vm, "Couldn't open /dev/net/tun");
- break;
+ ap->sw_if_indexp = &sw_if_index;
+ int rv = vnet_tap_connect(vm, ap);
+
+ switch (rv)
+ {
+ case VNET_API_ERROR_SYSCALL_ERROR_1:
+ return clib_error_return (0, "Couldn't open /dev/net/tun");
+
case VNET_API_ERROR_SYSCALL_ERROR_2:
- vlib_cli_output (vm, "Error setting flags on '%s'", intfc_name);
- break;
+ return clib_error_return (0, "Error setting flags on '%s'", intfc_name);
case VNET_API_ERROR_SYSCALL_ERROR_3:
- vlib_cli_output (vm, "Couldn't open provisioning socket");
- break;
+ return clib_error_return (0, "Couldn't open provisioning socket");
case VNET_API_ERROR_SYSCALL_ERROR_4:
- vlib_cli_output (vm, "Couldn't get if_index");
- break;
+ return clib_error_return (0, "Couldn't get if_index");
case VNET_API_ERROR_SYSCALL_ERROR_5:
- vlib_cli_output (vm, "Couldn't bind provisioning socket");
- break;
+ return clib_error_return (0, "Couldn't bind provisioning socket");
case VNET_API_ERROR_SYSCALL_ERROR_6:
- vlib_cli_output (0, "Couldn't set device non-blocking flag");
- break;
+ return clib_error_return (0, "Couldn't set device non-blocking flag");
case VNET_API_ERROR_SYSCALL_ERROR_7:
- vlib_cli_output (0, "Couldn't set device MTU");
- break;
+ return clib_error_return (0, "Couldn't set device MTU");
case VNET_API_ERROR_SYSCALL_ERROR_8:
- vlib_cli_output (0, "Couldn't get interface flags");
- break;
+ return clib_error_return (0, "Couldn't get interface flags");
case VNET_API_ERROR_SYSCALL_ERROR_9:
- vlib_cli_output (0, "Couldn't set intfc admin state up");
- break;
+ return clib_error_return (0, "Couldn't set intfc admin state up");
+
+ case VNET_API_ERROR_SYSCALL_ERROR_10:
+ return clib_error_return (0, "Couldn't set intfc address/mask");
case VNET_API_ERROR_INVALID_REGISTRATION:
- vlib_cli_output (0, "Invalid registration");
+ return clib_error_return (0, "Invalid registration");
+
+ case 0:
break;
+
default:
- vlib_cli_output (0, "Unknown error: %d", rv);
- break;
+ return clib_error_return (0, "Unknown error: %d", rv);
}
- return 0;
- }
- vlib_cli_output(vm, "%U\n", format_vnet_sw_if_index_name, vnet_get_main(), sw_if_index);
+ vlib_cli_output(vm, "%U\n", format_vnet_sw_if_index_name,
+ vnet_get_main(), sw_if_index);
return 0;
- }
+}
VLIB_CLI_COMMAND (tap_connect_command, static) = {
.path = "tap connect",
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