boringssl

History

David Benjamin 5d38f78e29 Rename obj_mac.h to nid.h and make it a multiply-includable header. obj_mac.h is missing #include guards, so one cannot use NIDs without pulling in the OBJ_* functions which depend on the giant OID table. Give it #include guards, tidy up the style slightly, and also rename it to nid.h which is a much more reasonable name. obj_mac.h is kept as a forwarding header as, despite it being a little screwy, some code #includes it anyway. BUG=chromium:499653 Change-Id: Iec0b3f186c02e208ff1f7437bf27ee3a5ad004b7 Reviewed-on: https://boringssl-review.googlesource.com/7562 Reviewed-by: Steven Valdez <svaldez@google.com> Reviewed-by: David Benjamin <davidben@google.com>		2016-03-31 20:45:35 +00:00
..
CMakeLists.txt	Move arm_arch.h and fix up lots of include paths.	2015-08-26 01:57:59 +00:00
obj_dat.h	Rename obj_mac.h to nid.h and make it a multiply-includable header.	2016-03-31 20:45:35 +00:00
obj_dat.pl	Rename obj_mac.h to nid.h and make it a multiply-includable header.	2016-03-31 20:45:35 +00:00
obj_mac.num	Rename NID_x25519 to NID_X25519.	2016-03-07 15:48:51 +00:00
obj_xref.c
obj_xref.h	Renegerate OID outputs.	2014-12-04 22:13:50 +00:00
obj_xref.pl	Add documentation for the OID scripts.	2014-12-04 22:12:26 +00:00
obj_xref.txt
obj.c	Remove the func parameter to OPENSSL_PUT_ERROR.	2015-07-16 02:02:37 +00:00
objects.pl	Rename obj_mac.h to nid.h and make it a multiply-includable header.	2016-03-31 20:45:35 +00:00
objects.txt	Rename NID_x25519 to NID_X25519.	2016-03-07 15:48:51 +00:00
README	Rename obj_mac.h to nid.h and make it a multiply-includable header.	2016-03-31 20:45:35 +00:00

README

OID information is generated via a series of perl scripts. In order, the full
list of commands to run are:

        perl objects.pl objects.txt obj_mac.num ../../include/openssl/nid.h
        perl obj_dat.pl ../../include/openssl/nid.h obj_dat.h
        perl obj_xref.pl obj_mac.num obj_xref.txt > obj_xref.h

objects.txt contains the list of all built-in OIDs. It is processed by
objects.pl to output obj_mac.num and nid.h. obj_mac.num is the list of NID
values for each OID. This is an input/output parameter so NID values are stable
across regenerations. nid.h is the header which defines macros for all the
built-in OIDs in C.

nid.h is read by obj_dat.pl to generate obj_dat.h. obj_dat.h contains the
ASN1_OBJECTs corresponding to built-in OIDs themselves along with lookup tables
for search by short name, OID, etc.

obj_mac.num and obj_xref.txt are read by obj_xref.pl to generate
obj_xref.h. obj_xref.txt links signature OIDs to corresponding public key
algorithms and digests. obj_xref.h contains lookup tables for querying this
information in both directions.

Dependency graph:

                        objects.txt
                            |
                            V
                       [objects.pl] <--+
                         /      \      |
                        V        V     |
                     nid.h     obj_mac.num  obj_xref.txt
                      |              \      /
                      V               V    V
                 [obj_dat.pl]      [obj_xref.pl]
                      |                  |
                      V                  V
                  obj_dat.h         obj_xref.h