CVSROOT: /cvs
Module name: src
Changes by: d...@cvs.openbsd.org 2020/08/02 21:29:58
Modified files:
lib/libpcap : bpf_image.c gencode.c gencode.h grammar.y
optimize.c pcap-filter.5 scanner.l
Log message:
add support for handling loads from BPF_RND.
this adds "rnd" and "random" as keywords in the grammar, and handles
them as an arithmetic operator. the decoder recognises the load,
so tcpdump can print it as 'ld #random'. most of the handling is
copied from the "len"/"length" keywoard handling that generates and
decodes a load of the actual wire length of the packet.
ok jmatthew@ tb@ kn@
