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b92fc4ae18
Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> Reviewed-by: Hugo Landau <hlandau@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19424)
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/*
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* Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <assert.h>
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#include "../ssl_local.h"
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#include <openssl/trace.h>
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#include <openssl/rand.h>
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#include <openssl/core_names.h>
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#include "record_local.h"
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#include "internal/cryptlib.h"
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void SSL3_RECORD_release(SSL3_RECORD *r, size_t num_recs)
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{
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size_t i;
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for (i = 0; i < num_recs; i++) {
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OPENSSL_free(r[i].comp);
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r[i].comp = NULL;
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}
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}
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void SSL3_RECORD_set_seq_num(SSL3_RECORD *r, const unsigned char *seq_num)
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{
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memcpy(r->seq_num, seq_num, SEQ_NUM_SIZE);
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}
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uint32_t ossl_get_max_early_data(SSL_CONNECTION *s)
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{
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uint32_t max_early_data;
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SSL_SESSION *sess = s->session;
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/*
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* If we are a client then we always use the max_early_data from the
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* session/psksession. Otherwise we go with the lowest out of the max early
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* data set in the session and the configured max_early_data.
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*/
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if (!s->server && sess->ext.max_early_data == 0) {
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if (!ossl_assert(s->psksession != NULL
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&& s->psksession->ext.max_early_data > 0)) {
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SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
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return 0;
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}
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sess = s->psksession;
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}
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if (!s->server)
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max_early_data = sess->ext.max_early_data;
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else if (s->ext.early_data != SSL_EARLY_DATA_ACCEPTED)
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max_early_data = s->recv_max_early_data;
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else
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max_early_data = s->recv_max_early_data < sess->ext.max_early_data
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? s->recv_max_early_data : sess->ext.max_early_data;
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return max_early_data;
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}
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int ossl_early_data_count_ok(SSL_CONNECTION *s, size_t length, size_t overhead,
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int send)
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{
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uint32_t max_early_data;
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max_early_data = ossl_get_max_early_data(s);
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if (max_early_data == 0) {
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SSLfatal(s, send ? SSL_AD_INTERNAL_ERROR : SSL_AD_UNEXPECTED_MESSAGE,
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SSL_R_TOO_MUCH_EARLY_DATA);
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return 0;
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}
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/* If we are dealing with ciphertext we need to allow for the overhead */
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max_early_data += overhead;
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if (s->early_data_count + length > max_early_data) {
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SSLfatal(s, send ? SSL_AD_INTERNAL_ERROR : SSL_AD_UNEXPECTED_MESSAGE,
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SSL_R_TOO_MUCH_EARLY_DATA);
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return 0;
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}
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s->early_data_count += length;
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return 1;
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}
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