From 9f781d84b0943b03af2a9fd0b7c4cef721d1d4c6 Mon Sep 17 00:00:00 2001 From: Steven Date: Tue, 5 Jun 2018 11:09:32 -0700 Subject: bond: send gratuitous arp when the active slave went down in active-backup mode - Modify the API send_ip6_na and send_ip4_garp to take sw_if_index instead of vnet_hw_interface_t and add call to build_ethernet_rewrite to support subinterface/vlan - Add code to bonding driver to send an event to bond_process when the first interface becomes active or when the active interface is down - Create a bond_process to walk the interface and the corresponding subinterfaces to send garp/ip6_na when an event is received. - Minor cleanup in bonding/node.c Note: dpdk bonding driver does not send garp/ip6_na for subinterfaces. There is no attempt to fix it here. But the infra is now done and should be easy to add the support. Change-Id: If3ecc4cd0fb3051330f7fa11ca0dab3e18557ce1 Signed-off-by: Steven --- src/vnet/ip/ip6.h | 5 ++--- src/vnet/ip/ip6_neighbor.c | 26 +++++++++++++++----------- 2 files changed, 17 insertions(+), 14 deletions(-) (limited to 'src/vnet/ip') diff --git a/src/vnet/ip/ip6.h b/src/vnet/ip/ip6.h index 4b24774c277..6f6724b3903 100644 --- a/src/vnet/ip/ip6.h +++ b/src/vnet/ip/ip6.h @@ -407,10 +407,9 @@ int vnet_ip6_nd_term (vlib_main_t * vm, ethernet_header_t * eth, ip6_header_t * ip, u32 sw_if_index, u16 bd_index); -void send_ip6_na (vlib_main_t * vm, const vnet_hw_interface_t * hi); +void send_ip6_na (vlib_main_t * vm, u32 sw_if_index); void send_ip6_na_w_addr (vlib_main_t * vm, - const ip6_address_t * addr, - const vnet_hw_interface_t * hi); + const ip6_address_t * addr, u32 sw_if_index); u8 *format_ip6_forward_next_trace (u8 * s, va_list * args); diff --git a/src/vnet/ip/ip6_neighbor.c b/src/vnet/ip/ip6_neighbor.c index 1b37e549e83..3daea6bafbe 100644 --- a/src/vnet/ip/ip6_neighbor.c +++ b/src/vnet/ip/ip6_neighbor.c @@ -4980,22 +4980,23 @@ ethernet_ndp_change_mac (u32 sw_if_index) } void -send_ip6_na (vlib_main_t * vm, const vnet_hw_interface_t * hi) +send_ip6_na (vlib_main_t * vm, u32 sw_if_index) { ip6_main_t *i6m = &ip6_main; - u32 sw_if_index = hi->sw_if_index; ip6_address_t *ip6_addr = ip6_interface_first_address (i6m, sw_if_index); - send_ip6_na_w_addr (vm, ip6_addr, hi); + send_ip6_na_w_addr (vm, ip6_addr, sw_if_index); } void send_ip6_na_w_addr (vlib_main_t * vm, - const ip6_address_t * ip6_addr, - const vnet_hw_interface_t * hi) + const ip6_address_t * ip6_addr, u32 sw_if_index) { ip6_main_t *i6m = &ip6_main; - u32 sw_if_index = hi->sw_if_index; + vnet_main_t *vnm = vnet_get_main (); + u8 *rewrite, rewrite_len; + vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index); + u8 dst_address[6]; if (ip6_addr) { @@ -5026,12 +5027,15 @@ send_ip6_na_w_addr (vlib_main_t * vm, /* Setup MAC header with IP6 Etype and mcast DMAC */ vlib_buffer_t *b = vlib_get_buffer (vm, bi); - vlib_buffer_advance (b, -sizeof (ethernet_header_t)); - ethernet_header_t *e = vlib_buffer_get_current (b); - e->type = clib_host_to_net_u16 (ETHERNET_TYPE_IP6); - clib_memcpy (e->src_address, hi->hw_address, sizeof (e->src_address)); - ip6_multicast_ethernet_address (e->dst_address, + ip6_multicast_ethernet_address (dst_address, IP6_MULTICAST_GROUP_ID_all_hosts); + rewrite = + ethernet_build_rewrite (vnm, sw_if_index, VNET_LINK_IP6, dst_address); + rewrite_len = vec_len (rewrite); + vlib_buffer_advance (b, -rewrite_len); + ethernet_header_t *e = vlib_buffer_get_current (b); + clib_memcpy (e->dst_address, rewrite, rewrite_len); + vec_free (rewrite); /* Send unsolicited ND advertisement packet out the specified interface */ vnet_buffer (b)->sw_if_index[VLIB_RX] = -- cgit 1.2.3-korg