*/
#include <linux/if_packet.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <net/if_arp.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
};
-static u8 *
+u8 *
format_af_packet_device_name (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
vnet_interface_output_runtime_t *rd = (void *) node->runtime_data;
af_packet_if_t *apif =
pool_elt_at_index (apm->interfaces, rd->dev_instance);
+ clib_spinlock_lock_if_init (&apif->lockp);
int block = 0;
u32 block_size = apif->tx_req->tp_block_size;
u32 frame_size = apif->tx_req->tp_frame_size;
struct tpacket2_hdr *tph;
u32 frame_not_ready = 0;
- if (PREDICT_FALSE (apif->lockp != 0))
- {
- while (__sync_lock_test_and_set (apif->lockp, 1))
- ;
- }
-
while (n_left > 0)
{
u32 len;
vlib_buffer_get_current (b0), len);
offset += len;
}
- while ((bi = b0->next_buffer));
+ while ((bi =
+ (b0->flags & VLIB_BUFFER_NEXT_PRESENT) ? b0->next_buffer : 0));
tph->tp_len = tph->tp_snaplen = offset;
tph->tp_status = TP_STATUS_SEND_REQUEST;
n_sent++;
next:
+ tx_frame = (tx_frame + 1) % frame_num;
+
/* check if we've exhausted the ring */
if (PREDICT_FALSE (frame_not_ready + n_sent == frame_num))
break;
-
- tx_frame = (tx_frame + 1) % frame_num;
}
CLIB_MEMORY_BARRIER ();
}
}
- if (PREDICT_FALSE (apif->lockp != 0))
- *apif->lockp = 0;
+ clib_spinlock_unlock_if_init (&apif->lockp);
if (PREDICT_FALSE (frame_not_ready))
vlib_error_count (vm, node->node_index,
af_packet_if_t *apif =
pool_elt_at_index (apm->interfaces, hw->dev_instance);
u32 hw_flags;
+ int rv, fd = socket (AF_UNIX, SOCK_DGRAM, 0);
+ struct ifreq ifr;
+
+ if (0 > fd)
+ {
+ clib_unix_warning ("af_packet_%s could not open socket",
+ apif->host_if_name);
+ return 0;
+ }
+
+ /* if interface is a bridge ignore */
+ if (apif->host_if_index < 0)
+ goto error; /* no error */
+
+ /* use host_if_index in case host name has changed */
+ ifr.ifr_ifindex = apif->host_if_index;
+ if ((rv = ioctl (fd, SIOCGIFNAME, &ifr)) < 0)
+ {
+ clib_unix_warning ("af_packet_%s ioctl could not retrieve eth name",
+ apif->host_if_name);
+ goto error;
+ }
apif->is_admin_up = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) != 0;
+ if ((rv = ioctl (fd, SIOCGIFFLAGS, &ifr)) < 0)
+ {
+ clib_unix_warning ("af_packet_%s error: %d",
+ apif->is_admin_up ? "up" : "down", rv);
+ goto error;
+ }
+
if (apif->is_admin_up)
- hw_flags = VNET_HW_INTERFACE_FLAG_LINK_UP;
+ {
+ hw_flags = VNET_HW_INTERFACE_FLAG_LINK_UP;
+ ifr.ifr_flags |= IFF_UP;
+ }
else
- hw_flags = 0;
+ {
+ hw_flags = 0;
+ ifr.ifr_flags &= ~IFF_UP;
+ }
+
+ if ((rv = ioctl (fd, SIOCSIFFLAGS, &ifr)) < 0)
+ {
+ clib_unix_warning ("af_packet_%s error: %d",
+ apif->is_admin_up ? "up" : "down", rv);
+ goto error;
+ }
vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags);
- return 0;
+error:
+ if (0 <= fd)
+ close (fd);
+
+ return 0; /* no error */
}
static clib_error_t *
return 0;
}
+static clib_error_t *af_packet_set_mac_address_function
+ (struct vnet_hw_interface_t *hi, char *address)
+{
+ af_packet_main_t *apm = &af_packet_main;
+ af_packet_if_t *apif =
+ pool_elt_at_index (apm->interfaces, hi->dev_instance);
+ int rv, fd = socket (AF_UNIX, SOCK_DGRAM, 0);
+ struct ifreq ifr;
+
+ if (0 > fd)
+ {
+ clib_unix_warning ("af_packet_%s could not open socket",
+ apif->host_if_name);
+ return 0;
+ }
+
+ /* if interface is a bridge ignore */
+ if (apif->host_if_index < 0)
+ goto error; /* no error */
+
+ /* use host_if_index in case host name has changed */
+ ifr.ifr_ifindex = apif->host_if_index;
+ if ((rv = ioctl (fd, SIOCGIFNAME, &ifr)) < 0)
+ {
+ clib_unix_warning
+ ("af_packet_%s ioctl could not retrieve eth name, error: %d",
+ apif->host_if_name, rv);
+ goto error;
+ }
+
+ clib_memcpy (ifr.ifr_hwaddr.sa_data, address, 6);
+ ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
+
+ if ((rv = ioctl (fd, SIOCSIFHWADDR, &ifr)) < 0)
+ {
+ clib_unix_warning ("af_packet_%s ioctl could not set mac, error: %d",
+ apif->host_if_name, rv);
+ goto error;
+ }
+
+error:
+
+ if (0 <= fd)
+ close (fd);
+
+ return 0; /* no error */
+}
+
/* *INDENT-OFF* */
VNET_DEVICE_CLASS (af_packet_device_class) = {
.name = "af-packet",
.clear_counters = af_packet_clear_hw_interface_counters,
.admin_up_down_function = af_packet_interface_admin_up_down,
.subif_add_del_function = af_packet_subif_add_del_function,
+ .mac_addr_change_function = af_packet_set_mac_address_function,
};
VLIB_DEVICE_TX_FUNCTION_MULTIARCH (af_packet_device_class,