diff options
Diffstat (limited to 'src/vnet')
| -rw-r--r-- | src/vnet/vxlan/decap.c | 4 | ||||
| -rw-r--r-- | src/vnet/vxlan/vxlan.c | 134 |
2 files changed, 55 insertions, 83 deletions
diff --git a/src/vnet/vxlan/decap.c b/src/vnet/vxlan/decap.c index d5a9442f..514b2c99 100644 --- a/src/vnet/vxlan/decap.c +++ b/src/vnet/vxlan/decap.c @@ -1032,8 +1032,8 @@ ip_vxlan_bypass_inline (vlib_main_t * vm, } else { - error1 = good_udp1 ? 0 : IP4_ERROR_UDP_CHECKSUM; - error1 = (len_diff1 >= 0) ? error1 : IP4_ERROR_UDP_LENGTH; + error1 = good_udp1 ? 0 : IP6_ERROR_UDP_CHECKSUM; + error1 = (len_diff1 >= 0) ? error1 : IP6_ERROR_UDP_LENGTH; } next1 = error1 ? diff --git a/src/vnet/vxlan/vxlan.c b/src/vnet/vxlan/vxlan.c index 28fde51c..849fc25d 100644 --- a/src/vnet/vxlan/vxlan.c +++ b/src/vnet/vxlan/vxlan.c @@ -92,10 +92,9 @@ static uword dummy_interface_tx (vlib_main_t * vm, static clib_error_t * vxlan_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { - if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) - vnet_hw_interface_set_flags (vnm, hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP); - else - vnet_hw_interface_set_flags (vnm, hw_if_index, 0); + u32 hw_flags = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ? + VNET_HW_INTERFACE_FLAG_LINK_UP : 0; + vnet_hw_interface_set_flags (vnm, hw_if_index, hw_flags); return /* no error */ 0; } @@ -203,89 +202,66 @@ _(decap_next_index) \ _(src) \ _(dst) -static int vxlan4_rewrite (vxlan_tunnel_t * t) +static int +vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6) { - u8 *rw = 0; - ip4_header_t * ip0; - ip4_vxlan_header_t * h0; - int len = sizeof (*h0); - - vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES); - - h0 = (ip4_vxlan_header_t *) rw; - - /* Fixed portion of the (outer) ip4 header */ - ip0 = &h0->ip4; - ip0->ip_version_and_header_length = 0x45; - ip0->ttl = 254; - ip0->protocol = IP_PROTOCOL_UDP; - - /* we fix up the ip4 header length and checksum after-the-fact */ - ip0->src_address.as_u32 = t->src.ip4.as_u32; - ip0->dst_address.as_u32 = t->dst.ip4.as_u32; - ip0->checksum = ip4_header_checksum (ip0); - - /* UDP header, randomize src port on something, maybe? */ - h0->udp.src_port = clib_host_to_net_u16 (4789); - h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); - - /* VXLAN header */ - vnet_set_vni_and_flags(&h0->vxlan, t->vni); - - t->rewrite = rw; - return (0); -} - -static int vxlan6_rewrite (vxlan_tunnel_t * t) -{ - u8 *rw = 0; - ip6_header_t * ip0; - ip6_vxlan_header_t * h0; - int len = sizeof (*h0); - - vec_validate_aligned (rw, len-1, CLIB_CACHE_LINE_BYTES); - - h0 = (ip6_vxlan_header_t *) rw; - - /* Fixed portion of the (outer) ip6 header */ - ip0 = &h0->ip6; - ip0->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28); - ip0->hop_limit = 255; - ip0->protocol = IP_PROTOCOL_UDP; - - ip0->src_address = t->src.ip6; - ip0->dst_address = t->dst.ip6; + union { + ip4_vxlan_header_t * h4; + ip6_vxlan_header_t * h6; + u8 *rw; + } r = { .rw = 0 }; + int len = is_ip6 ? sizeof *r.h6 : sizeof *r.h4; + + vec_validate_aligned (r.rw, len-1, CLIB_CACHE_LINE_BYTES); + + udp_header_t * udp; + vxlan_header_t * vxlan; + /* Fixed portion of the (outer) ip header */ + if (!is_ip6) + { + ip4_header_t * ip = &r.h4->ip4; + udp = &r.h4->udp, vxlan = &r.h4->vxlan; + ip->ip_version_and_header_length = 0x45; + ip->ttl = 254; + ip->protocol = IP_PROTOCOL_UDP; + + ip->src_address = t->src.ip4; + ip->dst_address = t->dst.ip4; + + /* we fix up the ip4 header length and checksum after-the-fact */ + ip->checksum = ip4_header_checksum (ip); + } + else + { + ip6_header_t * ip = &r.h6->ip6; + udp = &r.h6->udp, vxlan = &r.h6->vxlan; + ip->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28); + ip->hop_limit = 255; + ip->protocol = IP_PROTOCOL_UDP; + + ip->src_address = t->src.ip6; + ip->dst_address = t->dst.ip6; + } /* UDP header, randomize src port on something, maybe? */ - h0->udp.src_port = clib_host_to_net_u16 (4789); - h0->udp.dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); + udp->src_port = clib_host_to_net_u16 (4789); + udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); /* VXLAN header */ - vnet_set_vni_and_flags(&h0->vxlan, t->vni); + vnet_set_vni_and_flags(vxlan, t->vni); - t->rewrite = rw; + t->rewrite = r.rw; return (0); } -static int vxlan_check_decap_next(vxlan_main_t * vxm, u32 is_ip6, u32 decap_next_index) +static bool +vxlan_decap_next_is_valid (vxlan_main_t * vxm, u32 is_ip6, u32 decap_next_index) { vlib_main_t * vm = vxm->vlib_main; - vlib_node_runtime_t *r; + u32 input_idx = (!is_ip6) ? vxlan4_input_node.index : vxlan6_input_node.index; + vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx); - if(!is_ip6) - { - r = vlib_node_get_runtime (vm, vxlan4_input_node.index); - if(decap_next_index >= r->n_next_nodes) - return 1; - } - else - { - r = vlib_node_get_runtime (vm, vxlan6_input_node.index); - if(decap_next_index >= r->n_next_nodes) - return 1; - } - - return 0; + return decap_next_index < r->n_next_nodes; } static void @@ -420,7 +396,7 @@ int vnet_vxlan_add_del_tunnel /*if not set explicitly, default to l2 */ if(a->decap_next_index == ~0) a->decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT; - if (vxlan_check_decap_next(vxm, is_ip6, a->decap_next_index)) + if (!vxlan_decap_next_is_valid(vxm, is_ip6, a->decap_next_index)) return VNET_API_ERROR_INVALID_DECAP_NEXT; pool_get_aligned (vxm->tunnels, t, CLIB_CACHE_LINE_BYTES); @@ -431,11 +407,7 @@ int vnet_vxlan_add_del_tunnel foreach_copy_field; #undef _ - if (!is_ip6) - rv = vxlan4_rewrite (t); - else - rv = vxlan6_rewrite (t); - + rv = vxlan_rewrite (t, is_ip6); if (rv) { pool_put (vxm->tunnels, t); |