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pping: Various minor fixes

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Perform various fixes and tweaks:
- Rename several defines to make them more informative
- Remove unrolling of loop in BPF programs
- Reuse defines for program sections between userspace and kernel
  space programs
- Perform fork+exec to run bpf_egress_loader script instead of
  system()
- Add comment to copied scripts indicating I've modified them
- Add pping.h and pping_helpers.h as dependencies in Makefile

Also, add a brief description of what PPing is and how it works to
README

Signed-off-by: Simon Sundberg <simon.sundberg@kau.se>
This commit is contained in:
Simon Sundberg
2021-01-26 18:34:23 +01:00
parent 71c6458712
commit 7410d5cc2c
10 changed files with 184 additions and 107 deletions
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4
pping/bpf_egress_loader.sh
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@@ -3,8 +3,8 @@
# Author: Jesper Dangaaard Brouer <netoptimizer@brouer.com>
# License: GPLv2
#
# Extended by Simon Sundberg <simon.sundberg@kau.se> to add support
# of optional section (--sec) option
# Modified by Simon Sundberg <simon.sundberg@kau.se> to add support
# of optional section (--sec) option and changed default BPF_OBJ
#
basedir=`dirname $0`
source ${basedir}/functions.sh