-/*
+/*
*------------------------------------------------------------------
* tuntap.c - kernel stack (reverse) punt/inject path
*
#include <vlib/unix/unix.h>
#include <vnet/ip/ip.h>
+#include <vnet/fib/fib_table.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/devices/devices.h>
static vnet_hw_interface_class_t tuntap_interface_class;
static void tuntap_punt_frame (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame);
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame);
static void tuntap_nopunt_frame (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame);
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame);
-typedef struct {
+typedef struct
+{
u32 sw_if_index;
u8 is_v6;
u8 addr[16];
} subif_address_t;
/**
- * @brief TUNTAP node main state
+ * @brief TUNTAP per thread struct
*/
-typedef struct {
- /** Vector of iovecs for readv/writev calls. */
- struct iovec * iovecs;
-
+typedef struct
+{
/** Vector of VLIB rx buffers to use. We allocate them in blocks
of VLIB_FRAME_SIZE (256). */
- u32 * rx_buffers;
+ u32 *rx_buffers;
+
+ /** Vector of iovecs for readv/writev calls. */
+ struct iovec *iovecs;
+} tuntap_per_thread_t;
+
+/**
+ * @brief TUNTAP node main state
+ */
+typedef struct
+{
+ /** per thread variables */
+ tuntap_per_thread_t *threads;
/** File descriptors for /dev/net/tun and provisioning socket. */
int dev_net_tun_fd, dev_tap_fd;
u32 mtu_bytes, mtu_buffers;
/** Linux interface name for tun device. */
- char * tun_name;
+ char *tun_name;
/** Pool of subinterface addresses */
subif_address_t *subifs;
mhash_t subif_mhash;
/** Unix file index */
- u32 unix_file_index;
+ u32 clib_file_index;
/** For the "normal" interface, if configured */
u32 hw_if_index, sw_if_index;
*
*/
static uword
-tuntap_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+tuntap_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 * buffers = vlib_frame_args (frame);
+ u32 *buffers = vlib_frame_args (frame);
uword n_packets = frame->n_vectors;
- tuntap_main_t * tm = &tuntap_main;
+ tuntap_main_t *tm = &tuntap_main;
vnet_main_t *vnm = vnet_get_main ();
vnet_interface_main_t *im = &vnm->interface_main;
u32 n_bytes = 0;
int i;
+ u16 thread_index = vm->thread_index;
for (i = 0; i < n_packets; i++)
{
- struct iovec * iov;
- vlib_buffer_t * b;
+ struct iovec *iov;
+ vlib_buffer_t *b;
uword l;
b = vlib_get_buffer (vm, buffers[i]);
if (tm->is_ether && (!tm->have_normal_interface))
- {
- vlib_buffer_reset(b);
- clib_memcpy (vlib_buffer_get_current (b), tm->ether_dst_mac, 6);
- }
+ {
+ vlib_buffer_reset (b);
+ clib_memcpy (vlib_buffer_get_current (b), tm->ether_dst_mac, 6);
+ }
/* Re-set iovecs if present. */
- if (tm->iovecs)
- _vec_len (tm->iovecs) = 0;
+ if (tm->threads[thread_index].iovecs)
+ _vec_len (tm->threads[thread_index].iovecs) = 0;
/** VLIB buffer chain -> Unix iovec(s). */
- vec_add2 (tm->iovecs, iov, 1);
+ vec_add2 (tm->threads[thread_index].iovecs, iov, 1);
iov->iov_base = b->data + b->current_data;
iov->iov_len = l = b->current_length;
if (PREDICT_FALSE (b->flags & VLIB_BUFFER_NEXT_PRESENT))
{
- do {
- b = vlib_get_buffer (vm, b->next_buffer);
+ do
+ {
+ b = vlib_get_buffer (vm, b->next_buffer);
- vec_add2 (tm->iovecs, iov, 1);
+ vec_add2 (tm->threads[thread_index].iovecs, iov, 1);
- iov->iov_base = b->data + b->current_data;
- iov->iov_len = b->current_length;
- l += b->current_length;
- } while (b->flags & VLIB_BUFFER_NEXT_PRESENT);
+ iov->iov_base = b->data + b->current_data;
+ iov->iov_len = b->current_length;
+ l += b->current_length;
+ }
+ while (b->flags & VLIB_BUFFER_NEXT_PRESENT);
}
- if (writev (tm->dev_net_tun_fd, tm->iovecs, vec_len (tm->iovecs)) < l)
+ if (writev (tm->dev_net_tun_fd, tm->threads[thread_index].iovecs,
+ vec_len (tm->threads[thread_index].iovecs)) < l)
clib_unix_warning ("writev");
n_bytes += l;
/* Update tuntap interface output stats. */
vlib_increment_combined_counter (im->combined_sw_if_counters
+ VNET_INTERFACE_COUNTER_TX,
- vm->cpu_index,
+ vm->thread_index,
tm->sw_if_index, n_packets, n_bytes);
return n_packets;
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tuntap_tx_node,static) = {
.function = tuntap_tx,
.name = "tuntap-tx",
.type = VLIB_NODE_TYPE_INTERNAL,
.vector_size = 4,
};
+/* *INDENT-ON* */
/**
* @brief TUNTAP receive node
*
*/
static uword
-tuntap_rx (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+tuntap_rx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- tuntap_main_t * tm = &tuntap_main;
- vlib_buffer_t * b;
+ tuntap_main_t *tm = &tuntap_main;
+ vlib_buffer_t *b;
u32 bi;
const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
+ u16 thread_index = vm->thread_index;
/** Make sure we have some RX buffers. */
{
- uword n_left = vec_len (tm->rx_buffers);
+ uword n_left = vec_len (tm->threads[thread_index].rx_buffers);
uword n_alloc;
if (n_left < VLIB_FRAME_SIZE / 2)
{
- if (! tm->rx_buffers)
- vec_alloc (tm->rx_buffers, VLIB_FRAME_SIZE);
-
- n_alloc = vlib_buffer_alloc (vm, tm->rx_buffers + n_left, VLIB_FRAME_SIZE - n_left);
- _vec_len (tm->rx_buffers) = n_left + n_alloc;
+ if (!tm->threads[thread_index].rx_buffers)
+ vec_alloc (tm->threads[thread_index].rx_buffers, VLIB_FRAME_SIZE);
+
+ n_alloc =
+ vlib_buffer_alloc (vm,
+ tm->threads[thread_index].rx_buffers + n_left,
+ VLIB_FRAME_SIZE - n_left);
+ _vec_len (tm->threads[thread_index].rx_buffers) = n_left + n_alloc;
}
}
/** Allocate RX buffers from end of rx_buffers.
Turn them into iovecs to pass to readv. */
{
- uword i_rx = vec_len (tm->rx_buffers) - 1;
- vlib_buffer_t * b;
+ uword i_rx = vec_len (tm->threads[thread_index].rx_buffers) - 1;
+ vlib_buffer_t *b;
word i, n_bytes_left, n_bytes_in_packet;
/** We should have enough buffers left for an MTU sized packet. */
- ASSERT (vec_len (tm->rx_buffers) >= tm->mtu_buffers);
+ ASSERT (vec_len (tm->threads[thread_index].rx_buffers) >=
+ tm->mtu_buffers);
- vec_validate (tm->iovecs, tm->mtu_buffers - 1);
+ vec_validate (tm->threads[thread_index].iovecs, tm->mtu_buffers - 1);
for (i = 0; i < tm->mtu_buffers; i++)
{
- b = vlib_get_buffer (vm, tm->rx_buffers[i_rx - i]);
- tm->iovecs[i].iov_base = b->data;
- tm->iovecs[i].iov_len = buffer_size;
+ b =
+ vlib_get_buffer (vm,
+ tm->threads[thread_index].rx_buffers[i_rx - i]);
+ tm->threads[thread_index].iovecs[i].iov_base = b->data;
+ tm->threads[thread_index].iovecs[i].iov_len = buffer_size;
}
- n_bytes_left = readv (tm->dev_net_tun_fd, tm->iovecs, tm->mtu_buffers);
+ n_bytes_left =
+ readv (tm->dev_net_tun_fd, tm->threads[thread_index].iovecs,
+ tm->mtu_buffers);
n_bytes_in_packet = n_bytes_left;
if (n_bytes_left <= 0)
{
- if (errno != EAGAIN)
- clib_unix_warning ("readv %d", n_bytes_left);
+ if (errno != EAGAIN)
+ clib_unix_warning ("readv %d", n_bytes_left);
return 0;
}
- bi = tm->rx_buffers[i_rx];
+ bi = tm->threads[thread_index].rx_buffers[i_rx];
while (1)
{
- b = vlib_get_buffer (vm, tm->rx_buffers[i_rx]);
+ b = vlib_get_buffer (vm, tm->threads[thread_index].rx_buffers[i_rx]);
b->flags = 0;
b->current_data = 0;
- b->current_length = n_bytes_left < buffer_size ? n_bytes_left : buffer_size;
+ b->current_length =
+ n_bytes_left < buffer_size ? n_bytes_left : buffer_size;
n_bytes_left -= buffer_size;
if (n_bytes_left <= 0)
- {
- break;
- }
+ {
+ break;
+ }
i_rx--;
b->flags |= VLIB_BUFFER_NEXT_PRESENT;
- b->next_buffer = tm->rx_buffers[i_rx];
+ b->next_buffer = tm->threads[thread_index].rx_buffers[i_rx];
}
/** Interface counters for tuntap interface. */
vlib_increment_combined_counter
- (vnet_main.interface_main.combined_sw_if_counters
- + VNET_INTERFACE_COUNTER_RX,
- os_get_cpu_number(),
- tm->sw_if_index,
- 1, n_bytes_in_packet);
+ (vnet_main.interface_main.combined_sw_if_counters
+ + VNET_INTERFACE_COUNTER_RX,
+ thread_index, tm->sw_if_index, 1, n_bytes_in_packet);
- _vec_len (tm->rx_buffers) = i_rx;
+ _vec_len (tm->threads[thread_index].rx_buffers) = i_rx;
}
b = vlib_get_buffer (vm, bi);
uword n_trace = vlib_get_trace_count (vm, node);
vnet_buffer (b)->sw_if_index[VLIB_RX] = tm->sw_if_index;
- vnet_buffer (b)->sw_if_index[VLIB_TX] = (u32)~0;
+ vnet_buffer (b)->sw_if_index[VLIB_TX] = (u32) ~ 0;
/*
* Turn this on if you run into
* which nodes they've visited...
*/
if (VLIB_BUFFER_TRACE_TRAJECTORY)
- b->pre_data[0] = 0;
+ b->pre_data[0] = 0;
b->error = node->errors[0];
}
else
switch (b->data[0] & 0xf0)
- {
- case 0x40:
- next_index = VNET_DEVICE_INPUT_NEXT_IP4_INPUT;
- break;
- case 0x60:
- next_index = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
- break;
- default:
- next_index = VNET_DEVICE_INPUT_NEXT_DROP;
- break;
- }
+ {
+ case 0x40:
+ next_index = VNET_DEVICE_INPUT_NEXT_IP4_INPUT;
+ break;
+ case 0x60:
+ next_index = VNET_DEVICE_INPUT_NEXT_IP6_INPUT;
+ break;
+ default:
+ next_index = VNET_DEVICE_INPUT_NEXT_DROP;
+ break;
+ }
/* The linux kernel couldn't care less if our interface is up */
if (tm->have_normal_interface)
{
- vnet_main_t *vnm = vnet_get_main();
- vnet_sw_interface_t * si;
- si = vnet_get_sw_interface (vnm, tm->sw_if_index);
- if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
- next_index = VNET_DEVICE_INPUT_NEXT_DROP;
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_sw_interface_t *si;
+ si = vnet_get_sw_interface (vnm, tm->sw_if_index);
+ if (!(si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
+ next_index = VNET_DEVICE_INPUT_NEXT_DROP;
}
vnet_feature_start_device_input_x1 (tm->sw_if_index, &next_index, b);
if (n_trace > 0)
{
- vlib_trace_buffer (vm, node, next_index,
- b, /* follow_chain */ 1);
- vlib_set_trace_count (vm, node, n_trace - 1);
+ vlib_trace_buffer (vm, node, next_index, b, /* follow_chain */ 1);
+ vlib_set_trace_count (vm, node, n_trace - 1);
}
}
/**
* @brief TUNTAP_RX error strings
*/
-static char * tuntap_rx_error_strings[] = {
+static char *tuntap_rx_error_strings[] = {
"unknown packet type",
};
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (tuntap_rx_node,static) = {
.function = tuntap_rx,
.name = "tuntap-rx",
.n_errors = 1,
.error_strings = tuntap_rx_error_strings,
};
+/* *INDENT-ON* */
/**
* @brief Gets called when file descriptor is ready from epoll.
*
- * @param *uf - unix_file_t
+ * @param *uf - clib_file_t
*
* @return error - clib_error_t
*/
-static clib_error_t * tuntap_read_ready (unix_file_t * uf)
+static clib_error_t *
+tuntap_read_ready (clib_file_t * uf)
{
- vlib_main_t * vm = vlib_get_main();
+ vlib_main_t *vm = vlib_get_main ();
vlib_node_set_interrupt_pending (vm, tuntap_rx_node.index);
return 0;
}
int sfd;
/* Not present. */
- if (! tm->dev_net_tun_fd || tm->dev_net_tun_fd < 0)
+ if (!tm->dev_net_tun_fd || tm->dev_net_tun_fd < 0)
return 0;
sfd = socket (AF_INET, SOCK_STREAM, 0);
if (sfd < 0)
- clib_unix_warning("provisioning socket");
+ clib_unix_warning ("provisioning socket");
- memset(&ifr, 0, sizeof (ifr));
- strncpy (ifr.ifr_name, tm->tun_name, sizeof (ifr.ifr_name)-1);
+ memset (&ifr, 0, sizeof (ifr));
+ strncpy (ifr.ifr_name, tm->tun_name, sizeof (ifr.ifr_name) - 1);
/* get flags, modify to bring down interface... */
if (ioctl (sfd, SIOCGIFFLAGS, &ifr) < 0)
/* Turn off persistence */
if (ioctl (tm->dev_net_tun_fd, TUNSETPERSIST, 0) < 0)
clib_unix_warning ("TUNSETPERSIST");
- close(tm->dev_tap_fd);
+ close (tm->dev_tap_fd);
if (tm->dev_net_tun_fd >= 0)
- close(tm->dev_net_tun_fd);
+ close (tm->dev_net_tun_fd);
if (sfd >= 0)
close (sfd);
tuntap_config (vlib_main_t * vm, unformat_input_t * input)
{
tuntap_main_t *tm = &tuntap_main;
- clib_error_t * error = 0;
+ clib_error_t *error = 0;
struct ifreq ifr;
- u8 * name;
+ u8 *name;
int flags = IFF_TUN | IFF_NO_PI;
int is_enabled = 0, is_ether = 0, have_normal_interface = 0;
const uword buffer_size = VLIB_BUFFER_DATA_SIZE;
if (unformat (input, "mtu %d", &tm->mtu_bytes))
;
else if (unformat (input, "enable"))
- is_enabled = 1;
+ is_enabled = 1;
else if (unformat (input, "disable"))
- is_enabled = 0;
- else if (unformat (input, "ethernet") ||
- unformat (input, "ether"))
- is_ether = 1;
+ is_enabled = 0;
+ else if (unformat (input, "ethernet") || unformat (input, "ether"))
+ is_ether = 1;
else if (unformat (input, "have-normal-interface") ||
- unformat (input, "have-normal"))
- have_normal_interface = 1;
+ unformat (input, "have-normal"))
+ have_normal_interface = 1;
else if (unformat (input, "name %s", &name))
tm->tun_name = (char *) name;
else
if (is_enabled == 0)
return 0;
- if (geteuid())
+ if (geteuid ())
{
clib_warning ("tuntap disabled: must be superuser");
return 0;
- }
+ }
tm->is_ether = is_ether;
tm->have_normal_interface = have_normal_interface;
}
memset (&ifr, 0, sizeof (ifr));
- strncpy(ifr.ifr_name, tm->tun_name, sizeof(ifr.ifr_name)-1);
+ strncpy (ifr.ifr_name, tm->tun_name, sizeof (ifr.ifr_name) - 1);
ifr.ifr_flags = flags;
- if (ioctl (tm->dev_net_tun_fd, TUNSETIFF, (void *)&ifr) < 0)
+ if (ioctl (tm->dev_net_tun_fd, TUNSETIFF, (void *) &ifr) < 0)
{
error = clib_error_return_unix (0, "ioctl TUNSETIFF");
goto done;
}
-
+
/* Make it persistent, at least until we split. */
if (ioctl (tm->dev_net_tun_fd, TUNSETPERSIST, 1) < 0)
{
}
/* Open a provisioning socket */
- if ((tm->dev_tap_fd = socket(PF_PACKET, SOCK_RAW,
- htons(ETH_P_ALL))) < 0 )
+ if ((tm->dev_tap_fd = socket (PF_PACKET, SOCK_RAW, htons (ETH_P_ALL))) < 0)
{
error = clib_error_return_unix (0, "socket");
goto done;
struct ifreq ifr;
struct sockaddr_ll sll;
- memset (&ifr, 0, sizeof(ifr));
- strncpy (ifr.ifr_name, tm->tun_name, sizeof(ifr.ifr_name)-1);
- if (ioctl (tm->dev_tap_fd, SIOCGIFINDEX, &ifr) < 0 )
+ memset (&ifr, 0, sizeof (ifr));
+ strncpy (ifr.ifr_name, tm->tun_name, sizeof (ifr.ifr_name) - 1);
+ if (ioctl (tm->dev_tap_fd, SIOCGIFINDEX, &ifr) < 0)
{
error = clib_error_return_unix (0, "ioctl SIOCGIFINDEX");
goto done;
}
/* Bind the provisioning socket to the interface. */
- memset(&sll, 0, sizeof(sll));
- sll.sll_family = AF_PACKET;
- sll.sll_ifindex = ifr.ifr_ifindex;
- sll.sll_protocol = htons(ETH_P_ALL);
+ memset (&sll, 0, sizeof (sll));
+ sll.sll_family = AF_PACKET;
+ sll.sll_ifindex = ifr.ifr_ifindex;
+ sll.sll_protocol = htons (ETH_P_ALL);
- if (bind(tm->dev_tap_fd, (struct sockaddr*) &sll, sizeof(sll)) < 0)
+ if (bind (tm->dev_tap_fd, (struct sockaddr *) &sll, sizeof (sll)) < 0)
{
error = clib_error_return_unix (0, "bind");
goto done;
if (is_ether)
{
if (ioctl (tm->dev_tap_fd, SIOCGIFHWADDR, &ifr) < 0)
- {
- error = clib_error_return_unix (0, "ioctl SIOCGIFHWADDR");
- goto done;
- }
+ {
+ error = clib_error_return_unix (0, "ioctl SIOCGIFHWADDR");
+ goto done;
+ }
else
- clib_memcpy (tm->ether_dst_mac, ifr.ifr_hwaddr.sa_data, 6);
+ clib_memcpy (tm->ether_dst_mac, ifr.ifr_hwaddr.sa_data, 6);
}
if (have_normal_interface)
{
- vnet_main_t *vnm = vnet_get_main();
+ vnet_main_t *vnm = vnet_get_main ();
error = ethernet_register_interface
- (vnm,
- tuntap_dev_class.index,
- 0 /* device instance */,
- tm->ether_dst_mac /* ethernet address */,
- &tm->hw_if_index,
- 0 /* flag change */);
+ (vnm, tuntap_dev_class.index, 0 /* device instance */ ,
+ tm->ether_dst_mac /* ethernet address */ ,
+ &tm->hw_if_index, 0 /* flag change */ );
if (error)
- clib_error_report (error);
+ clib_error_report (error);
tm->sw_if_index = tm->hw_if_index;
vm->os_punt_frame = tuntap_nopunt_frame;
}
else
{
- vnet_main_t *vnm = vnet_get_main();
- vnet_hw_interface_t * hi;
-
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hi;
+
vm->os_punt_frame = tuntap_punt_frame;
-
+
tm->hw_if_index = vnet_register_interface
- (vnm,
- tuntap_dev_class.index, 0 /* device instance */,
- tuntap_interface_class.index, 0);
+ (vnm, tuntap_dev_class.index, 0 /* device instance */ ,
+ tuntap_interface_class.index, 0);
hi = vnet_get_hw_interface (vnm, tm->hw_if_index);
tm->sw_if_index = hi->sw_if_index;
-
+
/* Interface is always up. */
- vnet_hw_interface_set_flags (vnm, tm->hw_if_index,
- VNET_HW_INTERFACE_FLAG_LINK_UP);
- vnet_sw_interface_set_flags (vnm, tm->sw_if_index,
- VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+ vnet_hw_interface_set_flags (vnm, tm->hw_if_index,
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
+ vnet_sw_interface_set_flags (vnm, tm->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
}
{
- unix_file_t template = {0};
+ clib_file_t template = { 0 };
template.read_function = tuntap_read_ready;
template.file_descriptor = tm->dev_net_tun_fd;
- tm->unix_file_index = unix_file_add (&unix_main, &template);
+ tm->clib_file_index = clib_file_add (&file_main, &template);
}
- done:
+done:
if (error)
{
if (tm->dev_net_tun_fd >= 0)
u32 sw_if_index,
ip4_address_t * address,
u32 address_length,
- u32 if_address_index,
- u32 is_delete)
+ u32 if_address_index, u32 is_delete)
{
- tuntap_main_t * tm = &tuntap_main;
+ tuntap_main_t *tm = &tuntap_main;
struct ifreq ifr;
- subif_address_t subif_addr, * ap;
- uword * p;
+ subif_address_t subif_addr, *ap;
+ uword *p;
/** Tuntap disabled, or using a "normal" interface. */
- if (tm->have_normal_interface || tm->dev_tap_fd < 0)
+ if (tm->have_normal_interface || tm->dev_tap_fd < 0)
+ return;
+
+ /* if the address is being applied to an interface that is not in
+ * the same table/VRF as this tap, then ignore it.
+ * If we don't do this overlapping address spaces in the different tables
+ * breaks the linux host's routing tables */
+ if (fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4,
+ sw_if_index) !=
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP4, tm->sw_if_index))
return;
/** See if we already know about this subif */
/* Use subif pool index to select alias device. */
memset (&ifr, 0, sizeof (ifr));
- snprintf (ifr.ifr_name, sizeof(ifr.ifr_name),
- "%s:%d", tm->tun_name, (int)(ap - tm->subifs));
+ snprintf (ifr.ifr_name, sizeof (ifr.ifr_name),
+ "%s:%d", tm->tun_name, (int) (ap - tm->subifs));
/* the tuntap punt/inject is enabled for IPv4 RX so long as
* any vpp interface has an IPv4 address.
*/
ip4_sw_interface_enable_disable (tm->sw_if_index, !is_delete);
- if (! is_delete)
+ if (!is_delete)
{
- struct sockaddr_in * sin;
+ struct sockaddr_in *sin;
- sin = (struct sockaddr_in *)&ifr.ifr_addr;
+ sin = (struct sockaddr_in *) &ifr.ifr_addr;
/* Set ipv4 address, netmask. */
sin->sin_family = AF_INET;
clib_memcpy (&sin->sin_addr.s_addr, address, 4);
if (ioctl (tm->dev_tap_fd, SIOCSIFADDR, &ifr) < 0)
clib_unix_warning ("ioctl SIOCSIFADDR");
-
+
sin->sin_addr.s_addr = im->fib_masks[address_length];
if (ioctl (tm->dev_tap_fd, SIOCSIFNETMASK, &ifr) < 0)
clib_unix_warning ("ioctl SIOCSIFNETMASK");
}
else
{
- mhash_unset (&tm->subif_mhash, &subif_addr, 0 /* old value ptr */);
+ mhash_unset (&tm->subif_mhash, &subif_addr, 0 /* old value ptr */ );
pool_put (tm->subifs, ap);
}
* including @c <linux/ipv6.h> causes multiple definitions if
* @c <netinet/in.h is also included.
*/
-struct in6_ifreq {
- struct in6_addr ifr6_addr;
- u32 ifr6_prefixlen;
- int ifr6_ifindex;
+struct in6_ifreq
+{
+ struct in6_addr ifr6_addr;
+ u32 ifr6_prefixlen;
+ int ifr6_ifindex;
};
/**
* @brief Add or Del tun/tap interface address.
*
* Both the v6 interface address API and the way ifconfig
- * displays subinterfaces differ from their v4 couterparts.
+ * displays subinterfaces differ from their v4 counterparts.
* The code given here seems to work but YMMV.
*
* @param *im - ip6_main_t
u32 sw_if_index,
ip6_address_t * address,
u32 address_length,
- u32 if_address_index,
- u32 is_delete)
+ u32 if_address_index, u32 is_delete)
{
- tuntap_main_t * tm = &tuntap_main;
+ tuntap_main_t *tm = &tuntap_main;
struct ifreq ifr;
struct in6_ifreq ifr6;
- subif_address_t subif_addr, * ap;
- uword * p;
+ subif_address_t subif_addr, *ap;
+ uword *p;
/* Tuntap disabled, or using a "normal" interface. */
- if (tm->have_normal_interface || tm->dev_tap_fd < 0)
+ if (tm->have_normal_interface || tm->dev_tap_fd < 0)
+ return;
+
+ /* if the address is being applied to an interface that is not in
+ * the same table/VRF as this tap, then ignore it.
+ * If we don't do this overlapping address spaces in the different tables
+ * breaks the linux host's routing tables */
+ if (fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6,
+ sw_if_index) !=
+ fib_table_get_index_for_sw_if_index (FIB_PROTOCOL_IP6, tm->sw_if_index))
return;
/* See if we already know about this subif */
/* Use subif pool index to select alias device. */
memset (&ifr, 0, sizeof (ifr));
memset (&ifr6, 0, sizeof (ifr6));
- snprintf (ifr.ifr_name, sizeof(ifr.ifr_name),
- "%s:%d", tm->tun_name, (int)(ap - tm->subifs));
+ snprintf (ifr.ifr_name, sizeof (ifr.ifr_name),
+ "%s:%d", tm->tun_name, (int) (ap - tm->subifs));
/* the tuntap punt/inject is enabled for IPv6 RX so long as
* any vpp interface has an IPv6 address.
*/
ip6_sw_interface_enable_disable (tm->sw_if_index, !is_delete);
- if (! is_delete)
+ if (!is_delete)
{
int sockfd = socket (AF_INET6, SOCK_STREAM, 0);
if (sockfd < 0)
- clib_unix_warning ("get ifindex socket");
+ clib_unix_warning ("get ifindex socket");
if (ioctl (sockfd, SIOGIFINDEX, &ifr) < 0)
- clib_unix_warning ("get ifindex");
+ clib_unix_warning ("get ifindex");
ifr6.ifr6_ifindex = ifr.ifr_ifindex;
ifr6.ifr6_prefixlen = address_length;
clib_memcpy (&ifr6.ifr6_addr, address, 16);
if (ioctl (sockfd, SIOCSIFADDR, &ifr6) < 0)
- clib_unix_warning ("set address");
+ clib_unix_warning ("set address");
if (sockfd >= 0)
- close (sockfd);
+ close (sockfd);
}
else
{
int sockfd = socket (AF_INET6, SOCK_STREAM, 0);
if (sockfd < 0)
- clib_unix_warning ("get ifindex socket");
+ clib_unix_warning ("get ifindex socket");
if (ioctl (sockfd, SIOGIFINDEX, &ifr) < 0)
- clib_unix_warning ("get ifindex");
+ clib_unix_warning ("get ifindex");
ifr6.ifr6_ifindex = ifr.ifr_ifindex;
ifr6.ifr6_prefixlen = address_length;
clib_memcpy (&ifr6.ifr6_addr, address, 16);
if (ioctl (sockfd, SIOCDIFADDR, &ifr6) < 0)
- clib_unix_warning ("del address");
+ clib_unix_warning ("del address");
if (sockfd >= 0)
- close (sockfd);
+ close (sockfd);
- mhash_unset (&tm->subif_mhash, &subif_addr, 0 /* old value ptr */);
+ mhash_unset (&tm->subif_mhash, &subif_addr, 0 /* old value ptr */ );
pool_put (tm->subifs, ap);
}
}
*/
static void
tuntap_punt_frame (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
tuntap_tx (vm, node, frame);
vlib_frame_free (vm, node, frame);
*/
static void
tuntap_nopunt_frame (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 * buffers = vlib_frame_args (frame);
+ u32 *buffers = vlib_frame_args (frame);
uword n_packets = frame->n_vectors;
vlib_buffer_free (vm, buffers, n_packets);
vlib_frame_free (vm, node, frame);
}
+/* *INDENT-OFF* */
VNET_HW_INTERFACE_CLASS (tuntap_interface_class,static) = {
.name = "tuntap",
.flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
};
+/* *INDENT-ON* */
/**
* @brief Format tun/tap interface name
* @return *s - u8 - formatted string
*
*/
-static u8 * format_tuntap_interface_name (u8 * s, va_list * args)
+static u8 *
+format_tuntap_interface_name (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
*/
static uword
tuntap_intfc_tx (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- tuntap_main_t * tm = &tuntap_main;
- u32 * buffers = vlib_frame_args (frame);
+ tuntap_main_t *tm = &tuntap_main;
+ u32 *buffers = vlib_frame_args (frame);
uword n_buffers = frame->n_vectors;
/* Normal interface transmit happens only on the normal interface... */
return n_buffers;
}
+/* *INDENT-OFF* */
VNET_DEVICE_CLASS (tuntap_dev_class,static) = {
.name = "tuntap",
.tx_function = tuntap_intfc_tx,
.format_device_name = format_tuntap_interface_name,
};
+/* *INDENT-ON* */
/**
* @brief tun/tap node init
static clib_error_t *
tuntap_init (vlib_main_t * vm)
{
- clib_error_t * error;
- ip4_main_t * im4 = &ip4_main;
- ip6_main_t * im6 = &ip6_main;
+ clib_error_t *error;
+ ip4_main_t *im4 = &ip4_main;
+ ip6_main_t *im6 = &ip6_main;
ip4_add_del_interface_address_callback_t cb4;
ip6_add_del_interface_address_callback_t cb6;
- tuntap_main_t * tm = &tuntap_main;
+ tuntap_main_t *tm = &tuntap_main;
+ vlib_thread_main_t *m = vlib_get_thread_main ();
error = vlib_call_init_function (vm, ip4_init);
if (error)
return error;
- mhash_init (&tm->subif_mhash, sizeof (u32), sizeof(subif_address_t));
+ mhash_init (&tm->subif_mhash, sizeof (u32), sizeof (subif_address_t));
cb4.function = tuntap_ip4_add_del_interface_address;
cb4.function_opaque = 0;
cb6.function = tuntap_ip6_add_del_interface_address;
cb6.function_opaque = 0;
vec_add1 (im6->add_del_interface_address_callbacks, cb6);
+ vec_validate_aligned (tm->threads, m->n_vlib_mains - 1,
+ CLIB_CACHE_LINE_BYTES);
return 0;
}
VLIB_INIT_FUNCTION (tuntap_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff