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-rw-r--r--gpxe/src/crypto/chap.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/gpxe/src/crypto/chap.c b/gpxe/src/crypto/chap.c
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--- a/gpxe/src/crypto/chap.c
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@@ -1,124 +0,0 @@
-/*
- * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <assert.h>
-#include <gpxe/crypto.h>
-#include <gpxe/chap.h>
-
-/** @file
- *
- * CHAP protocol
- *
- */
-
-/**
- * Initialise CHAP challenge/response
- *
- * @v chap CHAP challenge/response
- * @v digest Digest algorithm to use
- * @ret rc Return status code
- *
- * Initialises a CHAP challenge/response structure. This routine
- * allocates memory, and so may fail. The allocated memory must
- * eventually be freed by a call to chap_finish().
- */
-int chap_init ( struct chap_response *chap,
- struct digest_algorithm *digest ) {
- size_t state_len;
- void *state;
-
- assert ( chap->digest == NULL );
- assert ( chap->digest_context == NULL );
- assert ( chap->response == NULL );
-
- DBG ( "CHAP %p initialising with %s digest\n", chap, digest->name );
-
- state_len = ( digest->ctxsize + digest->digestsize );
- state = malloc ( state_len );
- if ( ! state ) {
- DBG ( "CHAP %p could not allocate %zd bytes for state\n",
- chap, state_len );
- return -ENOMEM;
- }
-
- chap->digest = digest;
- chap->digest_context = state;
- chap->response = ( state + digest->ctxsize );
- chap->response_len = digest->digestsize;
- digest_init ( chap->digest, chap->digest_context );
- return 0;
-}
-
-/**
- * Add data to the CHAP challenge
- *
- * @v chap CHAP response
- * @v data Data to add
- * @v len Length of data to add
- */
-void chap_update ( struct chap_response *chap, const void *data,
- size_t len ) {
- assert ( chap->digest != NULL );
- assert ( chap->digest_context != NULL );
-
- if ( ! chap->digest )
- return;
-
- digest_update ( chap->digest, chap->digest_context, data, len );
-}
-
-/**
- * Respond to the CHAP challenge
- *
- * @v chap CHAP response
- *
- * Calculates the final CHAP response value, and places it in @c
- * chap->response, with a length of @c chap->response_len.
- */
-void chap_respond ( struct chap_response *chap ) {
- assert ( chap->digest != NULL );
- assert ( chap->digest_context != NULL );
- assert ( chap->response != NULL );
-
- DBG ( "CHAP %p responding to challenge\n", chap );
-
- if ( ! chap->digest )
- return;
-
- digest_final ( chap->digest, chap->digest_context, chap->response );
-}
-
-/**
- * Free resources used by a CHAP response
- *
- * @v chap CHAP response
- */
-void chap_finish ( struct chap_response *chap ) {
- void *state = chap->digest_context;
-
- DBG ( "CHAP %p finished\n", chap );
-
- free ( state );
- memset ( chap, 0, sizeof ( *chap ) );
-}