103 lines
4.4 KiB
C
103 lines
4.4 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is PRIVATE to SSL.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __sslencode_h_
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#define __sslencode_h_
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/* A buffer object, used for assembling messages. */
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typedef struct sslBufferStr {
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PRUint8 *buf;
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unsigned int len;
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unsigned int space;
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/* Set to true if the storage for the buffer is fixed, such as a stack
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* variable or a view on another buffer. Growing a fixed buffer fails. */
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PRBool fixed;
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} sslBuffer;
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#define SSL_BUFFER_EMPTY \
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{ \
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NULL, 0, 0, PR_FALSE \
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}
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#define SSL_BUFFER_FIXED(b, maxlen) \
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{ \
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b, 0, maxlen, PR_TRUE \
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}
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#define SSL_BUFFER_FIXED_LEN(b, len) \
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{ \
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b, len, 0, PR_TRUE \
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}
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#define SSL_BUFFER(b) SSL_BUFFER_FIXED(b, sizeof(b))
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#define SSL_BUFFER_BASE(b) ((b)->buf)
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#define SSL_BUFFER_LEN(b) ((b)->len)
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#define SSL_BUFFER_NEXT(b) ((b)->buf + (b)->len)
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#define SSL_BUFFER_SPACE(b) ((b)->space - (b)->len)
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SECStatus sslBuffer_Grow(sslBuffer *b, unsigned int newLen);
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SECStatus sslBuffer_Fill(sslBuffer *b, PRUint8 c, size_t len);
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SECStatus sslBuffer_Append(sslBuffer *b, const void *data, unsigned int len);
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SECStatus sslBuffer_AppendNumber(sslBuffer *b, PRUint64 v, unsigned int size);
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SECStatus sslBuffer_AppendVariable(sslBuffer *b, const PRUint8 *data,
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unsigned int len, unsigned int size);
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SECStatus sslBuffer_AppendBuffer(sslBuffer *b, const sslBuffer *append);
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SECStatus sslBuffer_AppendBufferVariable(sslBuffer *b, const sslBuffer *append,
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unsigned int size);
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SECStatus sslBuffer_Skip(sslBuffer *b, unsigned int size,
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unsigned int *savedOffset);
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SECStatus sslBuffer_InsertLength(sslBuffer *b, unsigned int at,
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unsigned int size);
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SECStatus sslBuffer_InsertNumber(sslBuffer *b, unsigned int at,
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PRUint64 v, unsigned int size);
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void sslBuffer_Clear(sslBuffer *b);
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SECStatus ssl3_AppendHandshake(sslSocket *ss, const void *void_src,
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unsigned int bytes);
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SECStatus ssl3_AppendHandshakeSuppressHash(sslSocket *ss, const void *void_src,
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unsigned int bytes);
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SECStatus ssl3_AppendHandshakeHeader(sslSocket *ss,
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SSLHandshakeType t, unsigned int length);
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SECStatus ssl3_AppendHandshakeHeaderAndStashSeqNum(sslSocket *ss,
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SSLHandshakeType t, unsigned int length, PRUint64 *b);
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SECStatus ssl3_AppendHandshakeNumber(sslSocket *ss, PRUint64 num,
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unsigned int lenSize);
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SECStatus ssl3_AppendHandshakeNumberSuppressHash(sslSocket *ss, PRUint64 num,
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unsigned int lenSize, PRBool suppressHash);
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SECStatus ssl3_AppendHandshakeVariable(sslSocket *ss, const PRUint8 *src,
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unsigned int bytes, unsigned int lenSize);
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SECStatus ssl3_AppendBufferToHandshake(sslSocket *ss, sslBuffer *buf);
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SECStatus ssl3_AppendBufferToHandshakeVariable(sslSocket *ss, sslBuffer *buf,
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unsigned int lenSize);
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SECStatus ssl3_CopyToSECItem(sslBuffer *b, SECItem *i);
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typedef struct {
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const PRUint8 *buf;
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unsigned int len;
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} sslReadBuffer;
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typedef struct {
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sslReadBuffer buf;
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unsigned int offset;
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} sslReader;
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#define SSL_READER(b, l) \
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{ \
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{ b, l }, 0 \
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}
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#define SSL_READER_CURRENT(r) \
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((r)->buf.buf + (r)->offset)
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#define SSL_READER_REMAINING(r) \
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((r)->buf.len - (r)->offset)
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SECStatus sslRead_Read(sslReader *reader, unsigned int count,
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sslReadBuffer *out);
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SECStatus sslRead_ReadVariable(sslReader *reader, unsigned int sizeLen,
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sslReadBuffer *out);
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SECStatus sslRead_ReadNumber(sslReader *reader, unsigned int bytes,
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PRUint64 *val);
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/* Remove message_seq, fragment_offset and fragment_length values
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* from the savedMessage buffer. Used for DTLS1.3 */
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SECStatus ssl3_MaybeUpdateHashWithSavedRecord(sslSocket *ss);
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#endif /* __sslencode_h_ */
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