The following patch adds support for the tar pax extended header to the tar parser so that tar files with pax extended headers containing Linux extended attributes can be processed by dpkg. Essentially the pax extended header contains key value pairs that describe file attributes. More information about the format can be found here:
http://pubs.opengroup.org/onlinepubs/009695299/utilities/pax.html#tag_04_100_13_03 We are particularly interested in the security.ima extended attribute, which, if available, contains a signature for the following file in the tar and which we then write as a Linux extended attribute into the filesystem. We are adding this type of support also to libarchive so that reprepro can process Debian packages with pax extended headers. Further, we are extending apt with pax extended header processing support as well. Regards, Stefan v1->v2: - fixed a memory leak - added DCO to patch Stefan Berger (1): libdpkg: Implement support for PAX Extended Header dpkg-deb/extract.c | 5 +++ lib/dpkg/tarfn.c | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/dpkg/tarfn.h | 13 +++++++ src/archives.c | 20 ++++++++++ 4 files changed, 148 insertions(+) -- 1.9.1
