openssl/crypto/err
Matt Caswell ac2d58c72b Implement a EVP_PKEY KDF to KDF provider bridge
Some KDF implementations were available before the current EVP_KDF API.
They were used via EVP_PKEY_derive. There exists a bridge between the old
API and the EVP_KDF API however this bridge itself uses a legacy
EVP_PKEY_METHOD. This commit implements a provider side bridge without
having to use any legacy code.

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/12573)
2020-08-10 14:51:57 +01:00
..
build.info
err_all.c Update copyright year 2020-04-23 13:55:52 +01:00
err_blocks.c Reorganize local header files 2019-09-28 20:26:35 +02:00
err_local.h Update copyright year 2020-07-16 14:47:04 +02:00
err_prn.c ERR: special case system errors 2020-07-05 21:13:03 +02:00
err.c DESERIALIZER: Add foundation for deserializers 2020-07-24 16:32:00 +02:00
openssl.ec DESERIALIZER: Add foundation for deserializers 2020-07-24 16:32:00 +02:00
openssl.txt Implement a EVP_PKEY KDF to KDF provider bridge 2020-08-10 14:51:57 +01:00
README.md Fix many MarkDown issues in {NOTES*,README*,HACKING,LICENSE}.md files 2020-07-05 11:29:43 +02:00

Adding new libraries

When adding a new sub-library to OpenSSL, assign it a library number ERR_LIB_XXX, define a macro XXXerr() (both in err.h), add its name to ERR_str_libraries[] (in crypto/err/err.c), and add ERR_load_XXX_strings() to the ERR_load_crypto_strings() function (in crypto/err/err_all.c). Finally, add an entry:

L      XXX     xxx.h   xxx_err.c

to crypto/err/openssl.ec, and add xxx_err.c to the Makefile. Running make errors will then generate a file xxx_err.c, and add all error codes used in the library to xxx.h.

Additionally the library include file must have a certain form. Typically it will initially look like this:

#ifndef HEADER_XXX_H
#define HEADER_XXX_H

#ifdef __cplusplus
extern "C" {
#endif

/* Include files */

#include <openssl/bio.h>
#include <openssl/x509.h>

/* Macros, structures and function prototypes */


/* BEGIN ERROR CODES */

The BEGIN ERROR CODES sequence is used by the error code generation script as the point to place new error codes, any text after this point will be overwritten when make errors is run. The closing #endif etc will be automatically added by the script.

The generated C error code file xxx_err.c will load the header files stdio.h, openssl/err.h and openssl/xxx.h so the header file must load any additional header files containing any definitions it uses.