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From 89e6317c75b494905590903fadbfdc3c8d31e2b8 Mon Sep 17 00:00:00 2001
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From: Stefan Berger <stefanb@us.ibm.com>
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Date: Fri, 29 Apr 2016 07:09:49 -0400
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Subject: [PATCH] Extend header size to 256MB due to file signatures
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Extend the header size to 256MB in case an RPM has a lot of files
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and the file signatures do not fit within the current limit of 16MB.
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An example for an RPM with many files is kcbench-data-4.0. It contains
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more than 52000 files. With each signature with a 2048 bit key requiring
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256 bytes plus a preamble, its representation in text from, and other
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overhead, the size of the header (index length and data length) exceeds
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32Mb.
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If this particular RPM's files have been signed using this patch, older
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versions of the rpm tool will report the header being too large. So this
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failure is expected then.
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By setting the limit to 256MB we create a lot of room for the future.
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Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
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---
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lib/header.c | 2 +-
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lib/header_internal.h | 5 +++--
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2 files changed, 4 insertions(+), 3 deletions(-)
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diff --git a/lib/header.c b/lib/header.c
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index 81f2038..7f7c115 100644
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--- a/lib/header.c
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+++ b/lib/header.c
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@@ -99,7 +99,7 @@ struct headerToken_s {
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/** \ingroup header
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* Maximum no. of bytes permitted in a header.
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*/
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-static const size_t headerMaxbytes = (32*1024*1024);
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+static const size_t headerMaxbytes = (256*1024*1024);
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#define INDEX_MALLOC_SIZE 8
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diff --git a/lib/header_internal.h b/lib/header_internal.h
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index bbe2097..aed3977 100644
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--- a/lib/header_internal.h
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+++ b/lib/header_internal.h
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@@ -45,9 +45,10 @@ struct indexEntry_s {
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/**
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* Sanity check on data size and/or offset and/or count.
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- * This check imposes a limit of 16 MB, more than enough.
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+ * This check imposes a limit of 256 MB -- file signatures
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+ * may require a lot of space in the header.
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*/
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-#define HEADER_DATA_MAX 0x00ffffff
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+#define HEADER_DATA_MAX 0x0fffffff
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#define hdrchkData(_nbytes) ((_nbytes) & (~HEADER_DATA_MAX))
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/**
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--
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2.9.5
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