On Sat, Dec 17, 2016 at 4:37 PM, Vadim Kochan <vadi...@gmail.com> wrote: > Extend field expression with the following syntax: > > <field>[<index>] | <field>[<index>:<length>] > > which allows to specify value or function at specified offset relative to the > field's offset within a header. > > The trick to implement this was to use copies of proto_field instances > in the packet_dyn->fields array which allows to specify different functions > for the same field and with different offsets. > > Vadim Kochan (7): > trafgen: parser: Rename field_expr -> field_value_expr rule > trafgen: proto: Change __proto_field_set_bytes(...) to take field > trafgen: proto: Rename proto_field_xxx -> proto_hdr_field_xxx > trafgen: proto: Add proto field only setters/getters > trafgen: parser: Parse IPv6 address by strict match pattern > trafgen: parser: Allow to set value/func at field offset > man: trafgen: Add short description about field offset using > > trafgen.8 | 25 +++++++ > trafgen_l2.c | 44 +++++------ > trafgen_l3.c | 24 +++--- > trafgen_l4.c | 28 +++---- > trafgen_lexer.l | 51 ++++++++++++- > trafgen_parser.y | 164 +++++++++++++++++++++++++++++------------ > trafgen_proto.c | 217 > +++++++++++++++++++++++++++++++++++-------------------- > trafgen_proto.h | 64 +++++++++------- > 8 files changed, 412 insertions(+), 205 deletions(-) > > -- > 2.10.2 >
Sorry I will resend series as I mistakenly typed that field offset expression works for both function & value but really it works only for function expression, so I will update man, commit messages & add validation. -- You received this message because you are subscribed to the Google Groups "netsniff-ng" group. To unsubscribe from this group and stop receiving emails from it, send an email to netsniff-ng+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
