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[0/4] improve runtime loading of shared drivers

Message ID 20200618135049.489773-1-bruce.richardson@intel.com (mailing list archive)
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Bruce Richardson June 18, 2020, 1:50 p.m. UTC 
  This set includes a number of small improvements for handling the loading
of drivers at runtime using the EAL -d flag.

It limits the loading of files to only those files which end in .so, which
means that one can pass in the whole "drivers/" subfolder from a meson
build and not get an error when DPDK trys to load a .a file.

It also puts in some basic permission checking to ensure that no drivers
are loaded from a world-writable location on the filesystem, which would be
a potential security hole on a mis-configured system.

Bruce Richardson (4):
  eal: remove unnecessary null-termination
  eal: only load shared libs from driver plugin directory
  eal: don't load drivers from insecure paths
  eal: cache last directory permissions checked

 lib/librte_eal/common/eal_common_options.c | 91 ++++++++++++++++++++--
 1 file changed, 83 insertions(+), 8 deletions(-)