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-rw-r--r--src/libsystemd-network/radv-internal.h129
1 files changed, 129 insertions, 0 deletions
diff --git a/src/libsystemd-network/radv-internal.h b/src/libsystemd-network/radv-internal.h
new file mode 100644
index 0000000..3dbeffe
--- /dev/null
+++ b/src/libsystemd-network/radv-internal.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+/***
+ Copyright © 2017 Intel Corporation. All rights reserved.
+***/
+
+#include "sd-radv.h"
+
+#include "log.h"
+#include "list.h"
+#include "sparse-endian.h"
+
+assert_cc(SD_RADV_DEFAULT_MIN_TIMEOUT_USEC <= SD_RADV_DEFAULT_MAX_TIMEOUT_USEC);
+
+#define SD_RADV_MAX_INITIAL_RTR_ADVERT_INTERVAL_USEC (16*USEC_PER_SEC)
+#define SD_RADV_MAX_INITIAL_RTR_ADVERTISEMENTS 3
+#define SD_RADV_MAX_FINAL_RTR_ADVERTISEMENTS 3
+#define SD_RADV_MIN_DELAY_BETWEEN_RAS 3
+#define SD_RADV_MAX_RA_DELAY_TIME_USEC (500*USEC_PER_MSEC)
+
+#define SD_RADV_OPT_ROUTE_INFORMATION 24
+#define SD_RADV_OPT_RDNSS 25
+#define SD_RADV_OPT_DNSSL 31
+
+enum RAdvState {
+ SD_RADV_STATE_IDLE = 0,
+ SD_RADV_STATE_ADVERTISING = 1,
+};
+typedef enum RAdvState RAdvState;
+
+struct sd_radv_opt_dns {
+ uint8_t type;
+ uint8_t length;
+ uint16_t reserved;
+ be32_t lifetime;
+} _packed_;
+
+struct sd_radv {
+ unsigned n_ref;
+ RAdvState state;
+
+ int ifindex;
+
+ sd_event *event;
+ int event_priority;
+
+ struct ether_addr mac_addr;
+ uint8_t hop_limit;
+ uint8_t flags;
+ uint32_t mtu;
+ uint16_t lifetime;
+
+ int fd;
+ unsigned ra_sent;
+ sd_event_source *recv_event_source;
+ sd_event_source *timeout_event_source;
+
+ unsigned n_prefixes;
+ LIST_HEAD(sd_radv_prefix, prefixes);
+
+ unsigned n_route_prefixes;
+ LIST_HEAD(sd_radv_route_prefix, route_prefixes);
+
+ size_t n_rdnss;
+ struct sd_radv_opt_dns *rdnss;
+ struct sd_radv_opt_dns *dnssl;
+};
+
+#define radv_prefix_opt__contents { \
+ uint8_t type; \
+ uint8_t length; \
+ uint8_t prefixlen; \
+ uint8_t flags; \
+ be32_t valid_lifetime; \
+ be32_t preferred_lifetime; \
+ uint32_t reserved; \
+ struct in6_addr in6_addr; \
+}
+
+struct radv_prefix_opt radv_prefix_opt__contents;
+
+/* We need the opt substructure to be packed, because we use it in send(). But
+ * if we use _packed_, this means that the structure cannot be used directly in
+ * normal code in general, because the fields might not be properly aligned.
+ * But in this particular case, the structure is defined in a way that gives
+ * proper alignment, even without the explicit _packed_ attribute. To appease
+ * the compiler we use the "unpacked" structure, but we also verify that
+ * structure contains no holes, so offsets are the same when _packed_ is used.
+ */
+struct radv_prefix_opt__packed radv_prefix_opt__contents _packed_;
+assert_cc(sizeof(struct radv_prefix_opt) == sizeof(struct radv_prefix_opt__packed));
+
+struct sd_radv_prefix {
+ unsigned n_ref;
+
+ struct radv_prefix_opt opt;
+
+ LIST_FIELDS(struct sd_radv_prefix, prefix);
+
+ usec_t valid_until;
+ usec_t preferred_until;
+};
+
+#define radv_route_prefix_opt__contents { \
+ uint8_t type; \
+ uint8_t length; \
+ uint8_t prefixlen; \
+ uint8_t flags_reserved; \
+ be32_t lifetime; \
+ struct in6_addr in6_addr; \
+}
+
+struct radv_route_prefix_opt radv_route_prefix_opt__contents;
+
+struct radv_route_prefix_opt__packed radv_route_prefix_opt__contents _packed_;
+assert_cc(sizeof(struct radv_route_prefix_opt) == sizeof(struct radv_route_prefix_opt__packed));
+
+struct sd_radv_route_prefix {
+ unsigned n_ref;
+
+ struct radv_route_prefix_opt opt;
+
+ LIST_FIELDS(struct sd_radv_route_prefix, prefix);
+};
+
+#define log_radv_full(level, error, fmt, ...) log_internal(level, error, PROJECT_FILE, __LINE__, __func__, "RADV: " fmt, ##__VA_ARGS__)
+#define log_radv_errno(error, fmt, ...) log_radv_full(LOG_DEBUG, error, fmt, ##__VA_ARGS__)
+#define log_radv(fmt, ...) log_radv_errno(0, fmt, ##__VA_ARGS__)