diff options
Diffstat (limited to '')
| -rw-r--r-- | security/nss/lib/ssl/sslencode.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/security/nss/lib/ssl/sslencode.h b/security/nss/lib/ssl/sslencode.h new file mode 100644 index 0000000000..09a35cd154 --- /dev/null +++ b/security/nss/lib/ssl/sslencode.h @@ -0,0 +1,103 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is PRIVATE to SSL. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef __sslencode_h_ +#define __sslencode_h_ + +/* A buffer object, used for assembling messages. */ +typedef struct sslBufferStr { + PRUint8 *buf; + unsigned int len; + unsigned int space; + /* Set to true if the storage for the buffer is fixed, such as a stack + * variable or a view on another buffer. Growing a fixed buffer fails. */ + PRBool fixed; +} sslBuffer; + +#define SSL_BUFFER_EMPTY \ + { \ + NULL, 0, 0, PR_FALSE \ + } +#define SSL_BUFFER_FIXED(b, maxlen) \ + { \ + b, 0, maxlen, PR_TRUE \ + } +#define SSL_BUFFER_FIXED_LEN(b, len) \ + { \ + b, len, 0, PR_TRUE \ + } +#define SSL_BUFFER(b) SSL_BUFFER_FIXED(b, sizeof(b)) +#define SSL_BUFFER_BASE(b) ((b)->buf) +#define SSL_BUFFER_LEN(b) ((b)->len) +#define SSL_BUFFER_NEXT(b) ((b)->buf + (b)->len) +#define SSL_BUFFER_SPACE(b) ((b)->space - (b)->len) + +SECStatus sslBuffer_Grow(sslBuffer *b, unsigned int newLen); +SECStatus sslBuffer_Fill(sslBuffer *b, PRUint8 c, size_t len); +SECStatus sslBuffer_Append(sslBuffer *b, const void *data, unsigned int len); +SECStatus sslBuffer_AppendNumber(sslBuffer *b, PRUint64 v, unsigned int size); +SECStatus sslBuffer_AppendVariable(sslBuffer *b, const PRUint8 *data, + unsigned int len, unsigned int size); +SECStatus sslBuffer_AppendBuffer(sslBuffer *b, const sslBuffer *append); +SECStatus sslBuffer_AppendBufferVariable(sslBuffer *b, const sslBuffer *append, + unsigned int size); +SECStatus sslBuffer_Skip(sslBuffer *b, unsigned int size, + unsigned int *savedOffset); +SECStatus sslBuffer_InsertLength(sslBuffer *b, unsigned int at, + unsigned int size); +SECStatus sslBuffer_InsertNumber(sslBuffer *b, unsigned int at, + PRUint64 v, unsigned int size); +void sslBuffer_Clear(sslBuffer *b); + +SECStatus ssl3_AppendHandshake(sslSocket *ss, const void *void_src, + unsigned int bytes); +SECStatus ssl3_AppendHandshakeSuppressHash(sslSocket *ss, const void *void_src, + unsigned int bytes); +SECStatus ssl3_AppendHandshakeHeader(sslSocket *ss, + SSLHandshakeType t, unsigned int length); +SECStatus ssl3_AppendHandshakeHeaderAndStashSeqNum(sslSocket *ss, + SSLHandshakeType t, unsigned int length, PRUint64 *b); +SECStatus ssl3_AppendHandshakeNumber(sslSocket *ss, PRUint64 num, + unsigned int lenSize); +SECStatus ssl3_AppendHandshakeNumberSuppressHash(sslSocket *ss, PRUint64 num, + unsigned int lenSize, PRBool suppressHash); +SECStatus ssl3_AppendHandshakeVariable(sslSocket *ss, const PRUint8 *src, + unsigned int bytes, unsigned int lenSize); +SECStatus ssl3_AppendBufferToHandshake(sslSocket *ss, sslBuffer *buf); +SECStatus ssl3_AppendBufferToHandshakeVariable(sslSocket *ss, sslBuffer *buf, + unsigned int lenSize); +SECStatus ssl3_CopyToSECItem(sslBuffer *b, SECItem *i); + +typedef struct { + const PRUint8 *buf; + unsigned int len; +} sslReadBuffer; +typedef struct { + sslReadBuffer buf; + unsigned int offset; +} sslReader; +#define SSL_READER(b, l) \ + { \ + { b, l }, 0 \ + } +#define SSL_READER_CURRENT(r) \ + ((r)->buf.buf + (r)->offset) +#define SSL_READER_REMAINING(r) \ + ((r)->buf.len - (r)->offset) +SECStatus sslRead_Read(sslReader *reader, unsigned int count, + sslReadBuffer *out); +SECStatus sslRead_ReadVariable(sslReader *reader, unsigned int sizeLen, + sslReadBuffer *out); +SECStatus sslRead_ReadNumber(sslReader *reader, unsigned int bytes, + PRUint64 *val); + +/* Remove message_seq, fragment_offset and fragment_length values + * from the savedMessage buffer. Used for DTLS1.3 */ +SECStatus ssl3_MaybeUpdateHashWithSavedRecord(sslSocket *ss); + +#endif /* __sslencode_h_ */ |