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Diffstat (limited to '')
-rw-r--r-- | src/libknot/packet/rrset-wire.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/libknot/packet/rrset-wire.h b/src/libknot/packet/rrset-wire.h new file mode 100644 index 0000000..e4370fd --- /dev/null +++ b/src/libknot/packet/rrset-wire.h @@ -0,0 +1,73 @@ +/* Copyright (C) 2018 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz> + + 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 3 of the License, or + (at your option) 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, see <http://www.gnu.org/licenses/>. + */ +/*! + * \file + * + * \brief RRSet from/to wire conversion functions. + * + * \addtogroup wire + * @{ + */ + +#pragma once + +#include "libknot/rrset.h" +#include "libknot/packet/compr.h" + +/*! + * \brief Write RR Set content to a wire. + * + * \param rrset RRSet to be converted. + * \param wire Output wire buffer. + * \param max_size Capacity of wire buffer. + * \param rotate Rotate the RR order by this count. + * \param compr Compression context. + * \param flags Flags; currently only KNOT_PF_TTL_ORIG is accepted. + * + * \return Output size, negative number on error (KNOT_E*). + */ +int knot_rrset_to_wire_extra(const knot_rrset_t *rrset, uint8_t *wire, + uint16_t max_size, uint16_t rotate, + knot_compr_t *compr, uint16_t flags); + +/* TODO: remove in next major version. */ +int knot_rrset_to_wire_rotate(const knot_rrset_t *rrset, uint8_t *wire, + uint16_t max_size, uint16_t rotate, + knot_compr_t *compr); + +/*! \brief Same as knot_rrset_to_wire_extra but without rrset rotation and flags. */ +static inline int knot_rrset_to_wire(const knot_rrset_t *rrset, uint8_t *wire, + uint16_t max_size, knot_compr_t *compr) +{ + return knot_rrset_to_wire_extra(rrset, wire, max_size, 0, compr, 0); +} + +/*! +* \brief Creates one RR from wire, stores it into \a rrset. +* +* \param wire Source wire (the whole packet). +* \param pos Position in \a wire where to start parsing. +* \param max_size Total size of data in \a wire (size of the packet). +* \param rrset Destination RRSet. +* \param mm Memory context. +* \param canonical Convert rrset to canonical format indication. +* +* \return KNOT_E* +*/ +int knot_rrset_rr_from_wire(const uint8_t *wire, size_t *pos, size_t max_size, + knot_rrset_t *rrset, knot_mm_t *mm, bool canonical); + +/*! @} */ |