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authorArtem Glazychev <artem.glazychev@xored.com>2020-12-01 02:39:21 +0700
committerOle Tr�an <otroan@employees.org>2021-02-05 11:53:38 +0000
commit839dcc0fb7313638d9b8f52a9db81350dddfe461 (patch)
treed2e0755fa29f190a3d39fa94a33449409dccee05 /src/vnet/vxlan/vxlan.c
parent6b354914c2acd58a1e9f8060cdcec28bf1be1bd1 (diff)
vxlan: add udp-port configuration support
Type: improvement Signed-off-by: Artem Glazychev <artem.glazychev@xored.com> Change-Id: Ie30d51ab4df5599b52f7335f863b930cd69dbdc1
Diffstat (limited to 'src/vnet/vxlan/vxlan.c')
-rw-r--r--src/vnet/vxlan/vxlan.c93
1 files changed, 59 insertions, 34 deletions
diff --git a/src/vnet/vxlan/vxlan.c b/src/vnet/vxlan/vxlan.c
index b2329d815ff..97098b83774 100644
--- a/src/vnet/vxlan/vxlan.c
+++ b/src/vnet/vxlan/vxlan.c
@@ -70,11 +70,12 @@ format_vxlan_tunnel (u8 * s, va_list * args)
vxlan_tunnel_t *t = va_arg (*args, vxlan_tunnel_t *);
s = format (s,
- "[%d] instance %d src %U dst %U vni %d fib-idx %d sw-if-idx %d ",
- t->dev_instance, t->user_instance,
- format_ip46_address, &t->src, IP46_TYPE_ANY,
- format_ip46_address, &t->dst, IP46_TYPE_ANY,
- t->vni, t->encap_fib_index, t->sw_if_index);
+ "[%d] instance %d src %U dst %U src_port %d dst_port %d vni %d "
+ "fib-idx %d sw-if-idx %d ",
+ t->dev_instance, t->user_instance, format_ip46_address, &t->src,
+ IP46_TYPE_ANY, format_ip46_address, &t->dst, IP46_TYPE_ANY,
+ t->src_port, t->dst_port, t->vni, t->encap_fib_index,
+ t->sw_if_index);
s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index);
@@ -236,14 +237,15 @@ const static fib_node_vft_t vxlan_vft = {
.fnv_back_walk = vxlan_tunnel_back_walk,
};
-
-#define foreach_copy_field \
-_(vni) \
-_(mcast_sw_if_index) \
-_(encap_fib_index) \
-_(decap_next_index) \
-_(src) \
-_(dst)
+#define foreach_copy_field \
+ _ (vni) \
+ _ (mcast_sw_if_index) \
+ _ (encap_fib_index) \
+ _ (decap_next_index) \
+ _ (src) \
+ _ (dst) \
+ _ (src_port) \
+ _ (dst_port)
static void
vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6)
@@ -288,8 +290,8 @@ vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6)
}
/* UDP header, randomize src port on something, maybe? */
- udp->src_port = clib_host_to_net_u16 (4789);
- udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan);
+ udp->src_port = clib_host_to_net_u16 (t->src_port);
+ udp->dst_port = clib_host_to_net_u16 (t->dst_port);
/* VXLAN header */
vnet_set_vni_and_flags (vxlan, t->vni);
@@ -365,15 +367,23 @@ int vnet_vxlan_add_del_tunnel
vlib_main_t *vm = vlib_get_main ();
u8 hw_addr[6];
+ /* Set udp-ports */
+ if (a->src_port == 0)
+ a->src_port = is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan;
+
+ if (a->dst_port == 0)
+ a->dst_port = is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan;
+
int not_found;
if (!is_ip6)
{
/* ip4 mcast is indexed by mcast addr only */
key4.key[0] = ip46_address_is_multicast (&a->dst) ?
- a->dst.ip4.as_u32 :
- a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32);
- key4.key[1] = (((u64) a->encap_fib_index) << 32)
- | clib_host_to_net_u32 (a->vni << 8);
+ a->dst.ip4.as_u32 :
+ a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32);
+ key4.key[1] = ((u64) clib_host_to_net_u16 (a->src_port) << 48) |
+ (((u64) a->encap_fib_index) << 32) |
+ clib_host_to_net_u32 (a->vni << 8);
not_found =
clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4);
p = (void *) &key4.value;
@@ -382,8 +392,9 @@ int vnet_vxlan_add_del_tunnel
{
key6.key[0] = a->dst.ip6.as_u64[0];
key6.key[1] = a->dst.ip6.as_u64[1];
- key6.key[2] = (((u64) a->encap_fib_index) << 32)
- | clib_host_to_net_u32 (a->vni << 8);
+ key6.key[2] = (((u64) clib_host_to_net_u16 (a->src_port) << 48) |
+ ((u64) a->encap_fib_index) << 32) |
+ clib_host_to_net_u32 (a->vni << 8);
not_found =
clib_bihash_search_inline_24_8 (&vxm->vxlan6_tunnel_by_key, &key6);
p = (void *) &key6.value;
@@ -649,11 +660,11 @@ int vnet_vxlan_add_del_tunnel
if (a->is_add)
{
/* register udp ports */
- if (!is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_vxlan, 1))
- udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan,
+ if (!is_ip6 && !udp_is_valid_dst_port (a->src_port, 1))
+ udp_register_dst_port (vxm->vlib_main, a->src_port,
vxlan4_input_node.index, 1);
- if (is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_vxlan6, 0))
- udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6,
+ if (is_ip6 && !udp_is_valid_dst_port (a->src_port, 0))
+ udp_register_dst_port (vxm->vlib_main, a->src_port,
vxlan6_input_node.index, 0);
}
@@ -711,6 +722,8 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm,
u32 mcast_sw_if_index = ~0;
u32 decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT;
u32 vni = 0;
+ u32 src_port = 0;
+ u32 dst_port = 0;
u32 table_id;
clib_error_t *parse_error = NULL;
@@ -756,6 +769,10 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm,
;
else if (unformat (line_input, "vni %d", &vni))
;
+ else if (unformat (line_input, "src_port %d", &src_port))
+ ;
+ else if (unformat (line_input, "dst_port %d", &dst_port))
+ ;
else
{
parse_error = clib_error_return (0, "parse error: '%U'",
@@ -855,11 +872,17 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm,
*
* @cliexpar
* Example of how to create a VXLAN Tunnel:
- * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7}
+ * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id
+ 7}
* Example of how to create a VXLAN Tunnel with a known name, vxlan_tunnel42:
* @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 instance 42}
- * Example of how to create a multicast VXLAN Tunnel with a known name, vxlan_tunnel23:
- * @cliexcmd{create vxlan tunnel src 10.0.3.1 group 239.1.1.1 GigabitEthernet0/8/0 instance 23}
+ * Example of how to create a multicast VXLAN Tunnel with a known name,
+ vxlan_tunnel23:
+ * @cliexcmd{create vxlan tunnel src 10.0.3.1 group 239.1.1.1
+ GigabitEthernet0/8/0 instance 23}
+ * Example of how to create a VXLAN Tunnel with custom udp-ports:
+ * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 src_port
+ 59000 dst_port 59001}
* Example of how to delete a VXLAN Tunnel:
* @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del}
?*/
@@ -867,10 +890,11 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm,
VLIB_CLI_COMMAND (create_vxlan_tunnel_command, static) = {
.path = "create vxlan tunnel",
.short_help =
- "create vxlan tunnel src <local-vtep-addr>"
- " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
- " [instance <id>]"
- " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]",
+ "create vxlan tunnel src <local-vtep-addr>"
+ " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>"
+ " [instance <id>]"
+ " [encap-vrf-id <nn>] [decap-next [l2|node <name>]] [del]"
+ " [src_port <local-vtep-udp-port>] [dst_port <remote-vtep-udp-port>]",
.function = vxlan_add_del_tunnel_command_fn,
};
/* *INDENT-ON* */
@@ -922,7 +946,8 @@ show_vxlan_tunnel_command_fn (vlib_main_t * vm,
* @cliexpar
* Example of how to display the VXLAN Tunnel entries:
* @cliexstart{show vxlan tunnel}
- * [0] src 10.0.3.1 dst 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2
+ * [0] src 10.0.3.1 dst 10.0.3.3 src_port 4789 dst_port 4789 vni 13
+ encap_fib_index 0 sw_if_index 5 decap_next l2
* @cliexend
?*/
/* *INDENT-OFF* */
@@ -1155,7 +1180,7 @@ vnet_vxlan_add_del_rx_flow (u32 hw_if_index, u32 t_index, int is_add)
.dst_addr.addr = t->src.ip4,
.src_addr.mask.as_u32 = ~0,
.dst_addr.mask.as_u32 = ~0,
- .dst_port.port = UDP_DST_PORT_vxlan,
+ .dst_port.port = t->src_port,
.dst_port.mask = 0xFF,
.vni = t->vni,
}