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Diffstat (limited to 'include/internal/packet_quic.h')
| -rw-r--r-- | include/internal/packet_quic.h | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/include/internal/packet_quic.h b/include/internal/packet_quic.h deleted file mode 100644 index 5173b4675d8d..000000000000 --- a/include/internal/packet_quic.h +++ /dev/null @@ -1,150 +0,0 @@ -/* - * Copyright 2022-2023 The OpenSSL Project Authors. All Rights Reserved. - * - * Licensed under the Apache License 2.0 (the "License"). You may not use - * this file except in compliance with the License. You can obtain a copy - * in the file LICENSE in the source distribution or at - * https://www.openssl.org/source/license.html - */ - -#ifndef OSSL_INTERNAL_PACKET_QUIC_H -# define OSSL_INTERNAL_PACKET_QUIC_H -# pragma once - -# include "internal/packet.h" -# include "internal/quic_vlint.h" - -# ifndef OPENSSL_NO_QUIC -/* - * Decodes a QUIC variable-length integer in |pkt| and stores the result in - * |data|. - */ -__owur static ossl_inline int PACKET_get_quic_vlint(PACKET *pkt, - uint64_t *data) -{ - size_t enclen; - - if (PACKET_remaining(pkt) < 1) - return 0; - - enclen = ossl_quic_vlint_decode_len(*pkt->curr); - - if (PACKET_remaining(pkt) < enclen) - return 0; - - *data = ossl_quic_vlint_decode_unchecked(pkt->curr); - packet_forward(pkt, enclen); - return 1; -} - -/* - * Decodes a QUIC variable-length integer in |pkt| and stores the result in - * |data|. Unlike PACKET_get_quic_vlint, this does not advance the current - * position. If was_minimal is non-NULL, *was_minimal is set to 1 if the integer - * was encoded using the minimal possible number of bytes and 0 otherwise. - */ -__owur static ossl_inline int PACKET_peek_quic_vlint_ex(PACKET *pkt, - uint64_t *data, - int *was_minimal) -{ - size_t enclen; - - if (PACKET_remaining(pkt) < 1) - return 0; - - enclen = ossl_quic_vlint_decode_len(*pkt->curr); - - if (PACKET_remaining(pkt) < enclen) - return 0; - - *data = ossl_quic_vlint_decode_unchecked(pkt->curr); - - if (was_minimal != NULL) - *was_minimal = (enclen == ossl_quic_vlint_encode_len(*data)); - - return 1; -} - -__owur static ossl_inline int PACKET_peek_quic_vlint(PACKET *pkt, - uint64_t *data) -{ - return PACKET_peek_quic_vlint_ex(pkt, data, NULL); -} - -/* - * Skips over a QUIC variable-length integer in |pkt| without decoding it. - */ -__owur static ossl_inline int PACKET_skip_quic_vlint(PACKET *pkt) -{ - size_t enclen; - - if (PACKET_remaining(pkt) < 1) - return 0; - - enclen = ossl_quic_vlint_decode_len(*pkt->curr); - - if (PACKET_remaining(pkt) < enclen) - return 0; - - packet_forward(pkt, enclen); - return 1; -} - -/* - * Reads a variable-length vector prefixed with a QUIC variable-length integer - * denoting the length, and stores the contents in |subpkt|. |pkt| can equal - * |subpkt|. Data is not copied: the |subpkt| packet will share its underlying - * buffer with the original |pkt|, so data wrapped by |pkt| must outlive the - * |subpkt|. Upon failure, the original |pkt| and |subpkt| are not modified. - */ -__owur static ossl_inline int PACKET_get_quic_length_prefixed(PACKET *pkt, - PACKET *subpkt) -{ - uint64_t length; - const unsigned char *data; - PACKET tmp = *pkt; - - if (!PACKET_get_quic_vlint(&tmp, &length) || - length > SIZE_MAX || - !PACKET_get_bytes(&tmp, &data, (size_t)length)) { - return 0; - } - - *pkt = tmp; - subpkt->curr = data; - subpkt->remaining = (size_t)length; - - return 1; -} - -/* - * Starts a QUIC sub-packet headed by a QUIC variable-length integer. A 4-byte - * representation is used. - */ -__owur int WPACKET_start_quic_sub_packet(WPACKET *pkt); - -/* - * Starts a QUIC sub-packet headed by a QUIC variable-length integer. max_len - * specifies the upper bound for the sub-packet size at the time the sub-packet - * is closed, which determines the encoding size for the variable-length - * integer header. max_len can be a precise figure or a worst-case bound - * if a precise figure is not available. - */ -__owur int WPACKET_start_quic_sub_packet_bound(WPACKET *pkt, size_t max_len); - -/* - * Allocates a QUIC sub-packet with exactly len bytes of payload, headed by a - * QUIC variable-length integer. The pointer to the payload buffer is output and - * must be filled by the caller. This function assures optimal selection of - * variable-length integer encoding length. - */ -__owur int WPACKET_quic_sub_allocate_bytes(WPACKET *pkt, size_t len, - unsigned char **bytes); - -/* - * Write a QUIC variable-length integer to the packet. - */ -__owur int WPACKET_quic_write_vlint(WPACKET *pkt, uint64_t v); - -# endif /* OPENSSL_NO_QUIC */ -#endif /* OSSL_INTERNAL_PACKET_QUIC_H */ |