mirror of
https://github.com/xdp-project/bpf-examples.git
synced 2024-05-06 15:54:53 +00:00
7410d5cc2c
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>
95 lines
2.3 KiB
Bash
95 lines
2.3 KiB
Bash
#
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# Common parameter parsing used by scripts in this directory
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# - Depending on bash 3 (or higher) syntax
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#
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# Author: Jesper Dangaaard Brouer <netoptimizer@brouer.com>
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# License: GPLv2
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#
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# Modified by Simon Sundberg <simon.sundberg@kau.se> to add support
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# of optional section (--sec) option
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#
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function usage() {
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echo ""
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echo "Usage: $0 [-vh] --dev ethX"
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echo " -d | --dev : (\$DEV) Interface/device (required)"
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echo " -v | --verbose : (\$VERBOSE) verbose"
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echo " --remove : (\$REMOVE) Remove the rules"
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echo " --dry-run : (\$DRYRUN) Dry-run only (echo tc commands)"
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echo " -s | --stats : (\$STATS_ONLY) Call statistics command"
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echo " -l | --list : (\$LIST) List setup after setup"
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echo " --file | --obj : (\$BPF_OBJ) BPF-object file to load"
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echo " --sec : (\$SEC) Section of BPF-object to load"
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echo ""
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}
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# Using external program "getopt" to get --long-options
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OPTIONS=$(getopt -o vshd:l \
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--long verbose,dry-run,remove,stats,list,help,dev:,file:,obj:,sec: -- "$@")
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if (( $? != 0 )); then
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usage
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err 2 "Error calling getopt"
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fi
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eval set -- "$OPTIONS"
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## --- Parse command line arguments / parameters ---
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while true; do
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case "$1" in
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-d | --dev ) # device
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export DEV=$2
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info "Device set to: DEV=$DEV" >&2
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shift 2
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;;
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--file | --obj )
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export BPF_OBJ=$2
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info "BPF-object file: $BPF_OBJ" >&2
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shift 2
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;;
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--sec )
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export SEC=$2
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info "Section to load: $SEC" >&2
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shift 2
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;;
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-v | --verbose)
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export VERBOSE=yes
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# info "Verbose mode: VERBOSE=$VERBOSE" >&2
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shift
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;;
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--dry-run )
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export DRYRUN=yes
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export VERBOSE=yes
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info "Dry-run mode: enable VERBOSE and don't call TC" >&2
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shift
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;;
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--remove )
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export REMOVE=yes
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shift
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;;
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-s | --stats )
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export STATS_ONLY=yes
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shift
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;;
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-l | --list )
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export LIST=yes
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shift
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;;
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-- )
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shift
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break
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;;
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-h | --help )
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usage;
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exit 0
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;;
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* )
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shift
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break
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;;
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esac
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done
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if [ -z "$DEV" ]; then
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usage
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err 2 "Please specify net_device (\$DEV)"
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fi
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