openssl/crypto/err
Shane Lontis 46eee7104d Add domain parameter match check for DH and ECDH key exchange.
Fixes #14808

Validation checks were moved into EVP_PKEY_derive_set_peer() which broke
an external negative test. Originally the old code was semi working by checking the peers public key was in the range of other parties p. It was not actually ever
checking that the domain parameters were consistent between the 2
parties. It now checks the parameters match as well as validating the
peers public key.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14823)
2021-04-14 16:01:13 +10:00
..
build.info Modify the ERR init functions to use the internal ERR string loaders 2020-11-24 15:21:44 +01:00
err_all_legacy.c Fix no-err 2020-12-08 16:10:17 +00:00
err_all.c Update copyright year 2021-02-18 15:05:17 +00:00
err_blocks.c Update copyright year 2021-04-08 13:04:41 +01:00
err_local.h rename err_get_state_int() to ossl_err_get_state_int() 2021-03-18 17:52:38 +10:00
err_prn.c Update copyright year 2021-04-08 13:04:41 +01:00
err.c rename err_get_state_int() to ossl_err_get_state_int() 2021-03-18 17:52:38 +10:00
openssl.ec Rename internal providercommonerr.h to less mouthful proverr.h 2021-02-11 09:34:31 +01:00
openssl.txt Add domain parameter match check for DH and ECDH key exchange. 2021-04-14 16:01:13 +10:00
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.