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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Tue, 10 Mar 2020 11:23:49 +0100
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Subject: [PATCH] efi/net: Print a debug message if parsing the address fails
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Currently if parsing the address fails an error message is printed. But in
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most cases this isn't a fatal error since the grub_efi_net_parse_address()
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function is only used to match an address with a network interface to use.
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And if this fails, the default interface is used which is good enough for
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most cases. So instead of printing an error that would pollute the console
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just print a debug message if the address is not parsed correctly.
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A user can enable debug messages for the efinet driver to have information
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about the failure and the fact that the default interface is being used.
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Related: rhbz#1811560
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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grub-core/net/efi/net.c | 18 +++++++++++-------
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1 file changed, 11 insertions(+), 7 deletions(-)
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diff --git a/grub-core/net/efi/net.c b/grub-core/net/efi/net.c
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index c74854a82..3ae1fbbe3 100644
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--- a/grub-core/net/efi/net.c
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+++ b/grub-core/net/efi/net.c
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@@ -778,9 +778,9 @@ grub_efi_net_parse_address (const char *address,
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}
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}
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- return grub_error (GRUB_ERR_NET_BAD_ADDRESS,
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- N_("unrecognised network address `%s'"),
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- address);
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+ grub_dprintf ("efinet", "unrecognised network address '%s'\n", address);
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+
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+ return GRUB_ERR_NET_BAD_ADDRESS;
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}
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static grub_efi_net_interface_t *
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@@ -795,10 +795,7 @@ match_route (const char *server)
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err = grub_efi_net_parse_address (server, &ip4, &ip6, &is_ip6, 0);
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if (err)
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- {
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- grub_print_error ();
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return NULL;
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- }
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if (is_ip6)
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{
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@@ -1233,8 +1230,15 @@ grub_net_open_real (const char *name __attribute__ ((unused)))
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/*FIXME: Use DNS translate name to address */
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net_interface = match_route (server);
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+ if (!net_interface && net_default_interface)
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+ {
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+ net_interface = net_default_interface;
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+ grub_dprintf ("efinet", "interface lookup failed, using default '%s'\n",
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+ net_interface->name);
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+ }
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+
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/*XXX: should we check device with default gateway ? */
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- if (!net_interface && !(net_interface = net_default_interface))
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+ if (!net_interface)
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{
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grub_error (GRUB_ERR_UNKNOWN_DEVICE, N_("disk `%s' no route found"),
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name);
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