From 3f83a59f17fef591cf5e4804f6b26ca9a9c1fe35 Mon Sep 17 00:00:00 2001 From: RHEL Ninjas Date: Fri, 25 Sep 2015 16:24:23 +0900 Subject: [PATCH 184/261] efinet: add filter for the first exclusive reopen of SNP --- grub-core/net/drivers/efi/efinet.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/grub-core/net/drivers/efi/efinet.c b/grub-core/net/drivers/efi/efinet.c index c3a128cd1..d8099a598 100644 --- a/grub-core/net/drivers/efi/efinet.c +++ b/grub-core/net/drivers/efi/efinet.c @@ -407,6 +407,30 @@ grub_efi_net_config_real (grub_efi_handle_t hnd, char **device, if (net->mode->state == GRUB_EFI_NETWORK_STARTED && efi_call_3 (net->initialize, net, 0, 0) != GRUB_EFI_SUCCESS) continue; + + /* Enable hardware receive filters if driver declares support for it. + We need unicast and broadcast and additionaly all nodes and + solicited multicast for IPv6. Solicited multicast is per-IPv6 + address and we currently do not have API to do it so simply + try to enable receive of all multicast packets or evertyhing in + the worst case (i386 PXE driver always enables promiscuous too). + + This does trust firmware to do what it claims to do. + */ + if (net->mode->receive_filter_mask) + { + grub_uint32_t filters = GRUB_EFI_SIMPLE_NETWORK_RECEIVE_UNICAST | + GRUB_EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST | + GRUB_EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST; + + filters &= net->mode->receive_filter_mask; + if (!(filters & GRUB_EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST)) + filters |= (net->mode->receive_filter_mask & + GRUB_EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS); + + efi_call_6 (net->receive_filters, net, filters, 0, 0, 0, NULL); + } + card->efi_net = net; } return; -- 2.13.5