diff options
Diffstat (limited to 'src/libsystemd-network/include/systemd-network/sd-ndisc.h')
-rw-r--r-- | src/libsystemd-network/include/systemd-network/sd-ndisc.h | 114 |
1 files changed, 80 insertions, 34 deletions
diff --git a/src/libsystemd-network/include/systemd-network/sd-ndisc.h b/src/libsystemd-network/include/systemd-network/sd-ndisc.h index 9ef96a8aa0..de2329458a 100644 --- a/src/libsystemd-network/include/systemd-network/sd-ndisc.h +++ b/src/libsystemd-network/include/systemd-network/sd-ndisc.h @@ -23,6 +23,7 @@ #include <inttypes.h> #include <net/ethernet.h> #include <netinet/in.h> +#include <sys/types.h> #include <systemd/sd-event.h> @@ -30,54 +31,99 @@ _SD_BEGIN_DECLARATIONS; +/* Neightbor Discovery Options, RFC 4861, Section 4.6 and + * https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xhtml#icmpv6-parameters-5 */ enum { - SD_NDISC_EVENT_STOP = 0, - SD_NDISC_EVENT_TIMEOUT = 1, + SD_NDISC_OPTION_SOURCE_LL_ADDRESS = 1, + SD_NDISC_OPTION_TARGET_LL_ADDRESS = 2, + SD_NDISC_OPTION_PREFIX_INFORMATION = 3, + SD_NDISC_OPTION_MTU = 5, + SD_NDISC_OPTION_ROUTE_INFORMATION = 24, + SD_NDISC_OPTION_RDNSS = 25, + SD_NDISC_OPTION_FLAGS_EXTENSION = 26, + SD_NDISC_OPTION_DNSSL = 31, + SD_NDISC_OPTION_CAPTIVE_PORTAL = 37, +}; + +/* Route preference, RFC 4191, Section 2.1 */ +enum { + SD_NDISC_PREFERENCE_LOW = 3U, + SD_NDISC_PREFERENCE_MEDIUM = 0U, + SD_NDISC_PREFERENCE_HIGH = 1U, }; typedef struct sd_ndisc sd_ndisc; -typedef void(*sd_ndisc_router_callback_t)(sd_ndisc *nd, uint8_t flags, const struct in6_addr *gateway, unsigned lifetime, int pref, void *userdata); -typedef void(*sd_ndisc_prefix_onlink_callback_t)(sd_ndisc *nd, const struct in6_addr *prefix, unsigned prefixlen, - unsigned lifetime, void *userdata); -typedef void(*sd_ndisc_prefix_autonomous_callback_t)(sd_ndisc *nd, const struct in6_addr *prefix, unsigned prefixlen, - unsigned lifetime_prefered, unsigned lifetime_valid, void *userdata); -typedef void(*sd_ndisc_callback_t)(sd_ndisc *nd, int event, void *userdata); - -int sd_ndisc_set_callback(sd_ndisc *nd, - sd_ndisc_router_callback_t rcb, - sd_ndisc_prefix_onlink_callback_t plcb, - sd_ndisc_prefix_autonomous_callback_t pacb, - sd_ndisc_callback_t cb, - void *userdata); -int sd_ndisc_set_index(sd_ndisc *nd, int interface_index); -int sd_ndisc_set_mac(sd_ndisc *nd, const struct ether_addr *mac_addr); +typedef struct sd_ndisc_router sd_ndisc_router; -int sd_ndisc_attach_event(sd_ndisc *nd, sd_event *event, int64_t priority); -int sd_ndisc_detach_event(sd_ndisc *nd); -sd_event *sd_ndisc_get_event(sd_ndisc *nd); +typedef enum sd_ndisc_event { + SD_NDISC_EVENT_TIMEOUT = 't', + SD_NDISC_EVENT_ROUTER = 'r', +} sd_ndisc_event; + +typedef void (*sd_ndisc_callback_t)(sd_ndisc *nd, sd_ndisc_event event, sd_ndisc_router *rt, void *userdata); +int sd_ndisc_new(sd_ndisc **ret); sd_ndisc *sd_ndisc_ref(sd_ndisc *nd); sd_ndisc *sd_ndisc_unref(sd_ndisc *nd); -int sd_ndisc_new(sd_ndisc **ret); - -int sd_ndisc_get_mtu(sd_ndisc *nd, uint32_t *mtu); +int sd_ndisc_start(sd_ndisc *nd); int sd_ndisc_stop(sd_ndisc *nd); -int sd_ndisc_router_discovery_start(sd_ndisc *nd); -#define SD_NDISC_ADDRESS_FORMAT_STR "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x" +int sd_ndisc_attach_event(sd_ndisc *nd, sd_event *event, int64_t priority); +int sd_ndisc_detach_event(sd_ndisc *nd); +sd_event *sd_ndisc_get_event(sd_ndisc *nd); + +int sd_ndisc_set_callback(sd_ndisc *nd, sd_ndisc_callback_t cb, void *userdata); +int sd_ndisc_set_ifindex(sd_ndisc *nd, int interface_index); +int sd_ndisc_set_mac(sd_ndisc *nd, const struct ether_addr *mac_addr); -#define SD_NDISC_ADDRESS_FORMAT_VAL(address) \ - be16toh((address).s6_addr16[0]), \ - be16toh((address).s6_addr16[1]), \ - be16toh((address).s6_addr16[2]), \ - be16toh((address).s6_addr16[3]), \ - be16toh((address).s6_addr16[4]), \ - be16toh((address).s6_addr16[5]), \ - be16toh((address).s6_addr16[6]), \ - be16toh((address).s6_addr16[7]) +int sd_ndisc_get_mtu(sd_ndisc *nd, uint32_t *ret); +int sd_ndisc_get_hop_limit(sd_ndisc *nd, uint8_t *ret); + +int sd_ndisc_router_from_raw(sd_ndisc_router **ret, const void *raw, size_t raw_size); +sd_ndisc_router *sd_ndisc_router_ref(sd_ndisc_router *rt); +sd_ndisc_router *sd_ndisc_router_unref(sd_ndisc_router *rt); + +int sd_ndisc_router_get_address(sd_ndisc_router *rt, struct in6_addr *ret_addr); +int sd_ndisc_router_get_timestamp(sd_ndisc_router *rt, clockid_t clock, uint64_t *ret); +int sd_ndisc_router_get_raw(sd_ndisc_router *rt, const void **ret, size_t *size); + +int sd_ndisc_router_get_hop_limit(sd_ndisc_router *rt, uint8_t *ret); +int sd_ndisc_router_get_flags(sd_ndisc_router *rt, uint64_t *ret_flags); +int sd_ndisc_router_get_preference(sd_ndisc_router *rt, unsigned *ret); +int sd_ndisc_router_get_lifetime(sd_ndisc_router *rt, uint16_t *ret_lifetime); +int sd_ndisc_router_get_mtu(sd_ndisc_router *rt, uint32_t *ret); + +/* Generic option access */ +int sd_ndisc_router_option_rewind(sd_ndisc_router *rt); +int sd_ndisc_router_option_next(sd_ndisc_router *rt); +int sd_ndisc_router_option_get_type(sd_ndisc_router *rt, uint8_t *ret); +int sd_ndisc_router_option_is_type(sd_ndisc_router *rt, uint8_t type); +int sd_ndisc_router_option_get_raw(sd_ndisc_router *rt, const void **ret, size_t *size); + +/* Specific option access: SD_NDISC_OPTION_PREFIX_INFORMATION */ +int sd_ndisc_router_prefix_get_valid_lifetime(sd_ndisc_router *rt, uint32_t *ret); +int sd_ndisc_router_prefix_get_preferred_lifetime(sd_ndisc_router *rt, uint32_t *ret); +int sd_ndisc_router_prefix_get_flags(sd_ndisc_router *rt, uint8_t *ret); +int sd_ndisc_router_prefix_get_address(sd_ndisc_router *rt, struct in6_addr *ret_addr); +int sd_ndisc_router_prefix_get_prefixlen(sd_ndisc_router *rt, unsigned *prefixlen); + +/* Specific option access: SD_NDISC_OPTION_ROUTE_INFORMATION */ +int sd_ndisc_router_route_get_lifetime(sd_ndisc_router *rt, uint32_t *ret); +int sd_ndisc_router_route_get_address(sd_ndisc_router *rt, struct in6_addr *ret_addr); +int sd_ndisc_router_route_get_prefixlen(sd_ndisc_router *rt, unsigned *prefixlen); +int sd_ndisc_router_route_get_preference(sd_ndisc_router *rt, unsigned *ret); + +/* Specific option access: SD_NDISC_OPTION_RDNSS */ +int sd_ndisc_router_rdnss_get_addresses(sd_ndisc_router *rt, const struct in6_addr **ret); +int sd_ndisc_router_rdnss_get_lifetime(sd_ndisc_router *rt, uint32_t *ret); + +/* Specific option access: SD_NDISC_OPTION_DNSSL */ +int sd_ndisc_router_dnssl_get_domains(sd_ndisc_router *rt, char ***ret); +int sd_ndisc_router_dnssl_get_lifetime(sd_ndisc_router *rt, uint32_t *ret); _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_ndisc, sd_ndisc_unref); +_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_ndisc_router, sd_ndisc_router_unref); _SD_END_DECLARATIONS; |