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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/libsystemd-network/dhcp6-option.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/libsystemd-network/dhcp6-option.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/libsystemd-network/dhcp6-option.h b/src/libsystemd-network/dhcp6-option.h new file mode 100644 index 0000000..36841dd --- /dev/null +++ b/src/libsystemd-network/dhcp6-option.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +#include "sd-dhcp6-client.h" + +#include "hash-funcs.h" +#include "list.h" +#include "macro.h" +#include "ordered-set.h" +#include "sparse-endian.h" + +typedef struct sd_dhcp6_option { + unsigned n_ref; + + uint32_t enterprise_identifier; + uint16_t option; + void *data; + size_t length; +} sd_dhcp6_option; + +extern const struct hash_ops dhcp6_option_hash_ops; + +/* Common option header */ +typedef struct DHCP6Option { + be16_t code; + be16_t len; + uint8_t data[]; +} _packed_ DHCP6Option; + +/* Address option */ +struct iaaddr { + struct in6_addr address; + be32_t lifetime_preferred; + be32_t lifetime_valid; +} _packed_; + +/* Prefix Delegation Prefix option */ +struct iapdprefix { + be32_t lifetime_preferred; + be32_t lifetime_valid; + uint8_t prefixlen; + struct in6_addr address; +} _packed_; + +typedef struct DHCP6Address DHCP6Address; + +struct DHCP6Address { + LIST_FIELDS(DHCP6Address, addresses); + + union { + struct iaaddr iaaddr; + struct iapdprefix iapdprefix; + }; +}; + +struct ia_header { + be32_t id; + be32_t lifetime_t1; + be32_t lifetime_t2; +} _packed_; + +typedef struct DHCP6IA { + uint16_t type; + struct ia_header header; + + LIST_HEAD(DHCP6Address, addresses); +} DHCP6IA; + +void dhcp6_ia_clear_addresses(DHCP6IA *ia); +DHCP6IA *dhcp6_ia_free(DHCP6IA *ia); +DEFINE_TRIVIAL_CLEANUP_FUNC(DHCP6IA*, dhcp6_ia_free); + +bool dhcp6_option_can_request(uint16_t option); + +int dhcp6_option_append(uint8_t **buf, size_t *offset, uint16_t code, + size_t optlen, const void *optval); +int dhcp6_option_append_ia(uint8_t **buf, size_t *offset, const DHCP6IA *ia); +int dhcp6_option_append_fqdn(uint8_t **buf, size_t *offset, const char *fqdn); +int dhcp6_option_append_user_class(uint8_t **buf, size_t *offset, char * const *user_class); +int dhcp6_option_append_vendor_class(uint8_t **buf, size_t *offset, char * const *vendor_class); +int dhcp6_option_append_vendor_option(uint8_t **buf, size_t *offset, OrderedSet *vendor_options); + +int dhcp6_option_parse( + const uint8_t *buf, + size_t buflen, + size_t *offset, + uint16_t *ret_option_code, + size_t *ret_option_data_len, + const uint8_t **ret_option_data); +int dhcp6_option_parse_status(const uint8_t *data, size_t data_len, char **ret_status_message); +int dhcp6_option_parse_ia( + sd_dhcp6_client *client, + be32_t iaid, + uint16_t option_code, + size_t option_data_len, + const uint8_t *option_data, + DHCP6IA **ret); +int dhcp6_option_parse_addresses( + const uint8_t *optval, + size_t optlen, + struct in6_addr **addrs, + size_t *count); +int dhcp6_option_parse_domainname_list(const uint8_t *optval, size_t optlen, char ***ret); +int dhcp6_option_parse_domainname(const uint8_t *optval, size_t optlen, char **ret); |