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7e98da058f
This change reorganizes and cleanups our patches to reduce the patch number from 314 patches to 187. That's achieved by dropping patches that are later reverted and squashing fixes for earlier patches that introduced features. There are no code changes and the diff with upstream is the same before and after the cleanup. Having fewer patches makes easier to manage the patchset and also will ease to rebase them on top of the latest grub-2.04 release. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
42 lines
1.6 KiB
Diff
42 lines
1.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
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Date: Tue, 18 Dec 2018 21:27:45 -0500
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Subject: [PATCH] Fix the looking up grub.cfg-XXX while tftp booting.
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Currently, grub doesn't look up grub.cfg-UUID, grub.cfg-MAC and grub.cfg-IP
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while the boot is from tftp. That is because the uuid size is got by
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grub_snprintf(, 0, ,), but the grub_snprintf() always returns 0,
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so grub judges there's no available uuid in the client and give up
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the looking up grub.cfg-XXX.
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This issue can be fixed by changing grub_snprintf(, 0, ,) behaivior
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to like as snprintf() from glibc, however, somewhere may expect
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such argument as the error, so it's risky.
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Let's use sizeof() and grub_strlen() to calculate the uuid size
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instead of grub_snprintf().
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Resolves: rhbz#1658500
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---
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grub-core/net/net.c | 8 +++-----
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1 file changed, 3 insertions(+), 5 deletions(-)
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diff --git a/grub-core/net/net.c b/grub-core/net/net.c
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index a011b940100..19ff2d486a1 100644
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--- a/grub-core/net/net.c
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+++ b/grub-core/net/net.c
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@@ -1942,11 +1942,9 @@ grub_net_search_configfile (char *config)
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char *client_uuid_var;
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grub_size_t client_uuid_var_size;
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- client_uuid_var_size = grub_snprintf (NULL, 0,
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- "net_%s_clientuuid", inf->name);
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- if (client_uuid_var_size <= 0)
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- continue;
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- client_uuid_var_size += 1;
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+ client_uuid_var_size = sizeof ("net_") + grub_strlen (inf->name) +
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+ sizeof ("_clientuuid") + 1;
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+
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client_uuid_var = grub_malloc(client_uuid_var_size);
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if (!client_uuid_var)
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continue;
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