[FE training-materials-updates] slides/buildroot-new-packages: new slide about the hash file
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Wed Jun 8 12:02:34 CEST 2016
Repository : git://git.free-electrons.com/training-materials.git
On branch : master
Link : http://git.free-electrons.com/training-materials/commit/?id=fb1f2e2d9fc7c1e5652b405c83de4e6b708830aa
>---------------------------------------------------------------
commit fb1f2e2d9fc7c1e5652b405c83de4e6b708830aa
Author: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Date: Wed Jun 8 12:02:34 2016 +0200
slides/buildroot-new-packages: new slide about the hash file
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
>---------------------------------------------------------------
fb1f2e2d9fc7c1e5652b405c83de4e6b708830aa
.../buildroot-new-packages.tex | 39 ++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/slides/buildroot-new-packages/buildroot-new-packages.tex b/slides/buildroot-new-packages/buildroot-new-packages.tex
index 4ecb5e2..465fc3d 100644
--- a/slides/buildroot-new-packages/buildroot-new-packages.tex
+++ b/slides/buildroot-new-packages/buildroot-new-packages.tex
@@ -591,6 +591,45 @@ PERL_EXTRA_DOWNLOADS = $(PERL_CROSS_SITE)/$(PERL_CROSS_SOURCE)
\end{itemize}
\end{frame}
+\begin{frame}[fragile]{Hash file}
+
+ \begin{itemize}
+
+ \item In order to validate the integrity of downloaded files, and
+ make sure the user uses the version which was tested by the
+ Buildroot developers, {\em cryptographic hashes} are used
+
+ \item Each package may contain a file named \code{<package>.hash},
+ which gives the hashes of the files downloaded by the package.
+
+ \item When present, the hashes for {\bf all} files downloaded by the
+ package must be documented.
+
+ \item The syntax of the file is:
+\begin{block}{}
+{\tiny
+\begin{verbatim}
+<hashtype> <hash> <file>
+\end{verbatim}
+}
+\end{block}
+
+ \item Example:
+
+\begin{block}{}
+{\tiny
+\begin{verbatim}
+# Locally computed
+sha256 2ee80bd0634a61a...3530396cccc09 unionfs-1.0.tar.gz
+sha256 c8526f80448f344...03bcd713d9de2 0001-include-asm-ioctl.h-for-_IOC_SIZE.patch
+\end{verbatim}
+}
+\end{block}
+
+ \end{itemize}
+
+\end{frame}
+
\begin{frame}[fragile]{Describing dependencies}
\begin{itemize}
\item Dependencies expressed in \code{Config.in} do not enforce
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