Import Mbed OS hard-float snapshot

connectivity/nanostack/sal-stack-nanostack/source/6LoWPAN/ND/nd_defines.h

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+/*
+ * Copyright (c) 2014-2017, 2019, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ND_DEFINES_H_
+#define ND_DEFINES_H_
+
+#include "Core/include/ns_address_internal.h"
+#include "ns_list.h"
+#include "6LoWPAN/IPHC_Decode/lowpan_context.h"
+#include "Common_Protocols/icmpv6_prefix.h"
+
+typedef enum {
+    ND_READY = 0,
+    ND_BR_READY = 1,
+    ND_RS_UNCAST = 2,
+    ND_RS_MULTICAST = 3,
+} nd_obj_state;
+
+#define nd_is_ready_state(state) ((state) == ND_READY || (state) == ND_BR_READY)
+#define nd_is_bootstrap_state(state) (!nd_is_ready_state(state))
+
+typedef enum {
+    ND_ADDRESS_PRIMARY = 0,
+    ND_ADDRESS_SECONDARY = 1,
+} nd_multi_address_type;
+
+typedef struct nd_router_next_hop {
+    addrtype_t addrtype;
+    uint8_t address[8];
+    uint8_t LQI;
+} nd_router_next_hop;
+
+// This structure conflates a few things, confusingly. It's basically
+// a "per-border-router"/"per-ABRO" (RFC 6775) structure.
+// This is sensible for a 6LR, which has to store prefixes and contexts
+// per-ABRO for relaying, and needs to time them out, but it's not the same
+// structure needed as a host (or for the host part of the router). For a host,
+// contexts and prefixes and addresses are needed per-interface, and they
+// shouldn't time out just because an ABRO timed out.
+// Also, because of this structure, we always end up requiring ABROs as a host,
+// which isn't really necessary.
+// This also isn't the RFC 4861 "Default Router List", alas.
+// Note also that this is used both to describe a remote border router, and
+// ourselves as a border router, with some confusing effects on lifetimes
+// (we're in danger of timing ourselves out as a border router)
+typedef struct nd_router {
+    nwk_interface_id nwk_id;
+    uint8_t border_router[16];
+    uint8_t flags;
+    uint16_t life_time;
+    uint16_t nd_re_validate;
+    nd_obj_state nd_state;
+    uint16_t ns_forward_timer;
+    uint16_t nd_timer;
+    uint16_t mle_advert_timer;
+    uint8_t mle_purge_timer;
+    uint8_t nd_bootstrap_tick;
+    uint8_t ns_retry;
+    uint32_t abro_version_num;
+    bool trig_address_reg;
+    ipv6_ra_timing_t ra_timing;
+    prefix_list_t prefix_list;
+    lowpan_context_list_t context_list;
+    nd_router_next_hop default_hop;
+    nd_router_next_hop *secondaty_hop;
+
+    ns_list_link_t link;
+
+} nd_router_t;
+
+/* XXX why isn't this a substructure of nd_router_t? or share one */
+typedef struct nd_router_setup {
+    uint16_t life_time;
+    uint32_t abro_version_num;
+    prefix_list_t prefix_list;
+    lowpan_context_list_t context_list;
+} nd_router_setup_t;
+
+
+#endif /* ND_DEFINES_H_ */

connectivity/nanostack/sal-stack-nanostack/source/6LoWPAN/ND/nd_router_object.h

@@ -0,0 +1,133 @@
+/*
+ * Copyright (c) 2013-2017, Arm Limited and affiliates.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "6LoWPAN/ND/nd_defines.h"
+#include "net_6lowpan_parameter_api.h"
+
+#ifndef ND_ROUTER_OBJECT_H_
+#define ND_ROUTER_OBJECT_H_
+
+
+#define ND_OBJECT_MAX 1
+
+#define ND_MAX_PROXY_CONTEXT_COUNT 5
+#define ND_MAX_PROXY_PREFIX_COUNT 5
+
+/* RFC4861 AdvCurHopLimit: value placed in Router Advertisement Cur Hop Limit */
+#ifndef ADV_CUR_HOP_LIMIT
+#define ADV_CUR_HOP_LIMIT 64
+#endif
+#ifdef HAVE_6LOWPAN_ND
+extern uint8_t nd_base_tick;
+extern nd_parameters_s nd_params;
+struct aro;
+
+#ifdef HAVE_6LOWPAN_BORDER_ROUTER
+int8_t icmp_nd_router_prefix_proxy_update(uint8_t *dptr, nd_router_setup_t *nd_router_object);
+int8_t nd_set_br(nd_router_t *br);
+#else
+#define icmp_nd_router_prefix_proxy_update(dptr, nd_router_object) -1
+#define nd_set_br(br) -1
+#endif
+extern void icmp_nd_prefixs_parse(buffer_t *buf, nd_router_t *nd_router_object, protocol_interface_info_entry_t *cur_interface);
+extern int8_t icmp_nd_router_prefix_update(uint8_t *dptr, nd_router_t *nd_router_object, protocol_interface_info_entry_t *cur_interface);
+extern void gp_address_add_to_end(gp_ipv6_address_list_t *list, const uint8_t address[static 16]);
+extern void gp_address_list_free(gp_ipv6_address_list_t *list);
+extern uint8_t nd_set_adr_by_dest_prefix(uint8_t *ptr, uint8_t *prefix);
+extern bool nd_object_active(void);
+extern void icmp_nd_set_nd_def_router_address(uint8_t *ptr, nd_router_t *cur);
+extern nd_router_t *icmp_nd_router_object_get(const uint8_t *border_router, nwk_interface_id nwk_id);
+extern void icmp_nd_set_next_hop(nd_router_next_hop *hop, sockaddr_t *adr);
+
+
+
+/** 6LoWPAN spesific ICMP message Handler */
+extern buffer_t *nd_dar_parse(buffer_t *buf, protocol_interface_info_entry_t *cur_interface);
+extern buffer_t *nd_dac_handler(buffer_t *buf, protocol_interface_info_entry_t *cur);
+extern void nd_ns_build(nd_router_t *cur, protocol_interface_info_entry_t *cur_interface, uint8_t *address_ptr);
+extern int8_t nd_parent_loose_indcate(uint8_t *neighbor_address, protocol_interface_info_entry_t *cur_interface);
+
+void nd_router_base_init(nd_router_t *new_entry);
+
+
+void icmp_nd_routers_init(void);
+
+#ifdef HAVE_RPL
+ipv6_ra_timing_t *nd_ra_timing(const uint8_t abro[16]);
+void nd_ra_build_by_abro(const uint8_t *abro, const uint8_t *dest, protocol_interface_info_entry_t *cur_interface);
+void nd_trigger_ras_from_rs(const uint8_t *unicast_adr, protocol_interface_info_entry_t *cur_interface);
+/** 6LoWPAN spesific ICMP message Handler */
+bool nd_ns_aro_handler(protocol_interface_info_entry_t *cur_interface, const uint8_t *aro_opt, const uint8_t *slaa_opt, const uint8_t *target, struct aro *aro_out);
+void nd_remove_registration(protocol_interface_info_entry_t *cur_interface, addrtype_t ll_type, const uint8_t *ll_address);
+#else
+#define nd_ra_timing(abro) NULL
+#define nd_ra_build_by_abro(abro, dest, cur_interface) ((void)0)
+#define nd_trigger_ras_from_rs(unicast_adr, cur_interface) ((void)0)
+#define nd_ns_aro_handler(cur_interface, aro_opt, slaa_opt, target, aro_out) false
+#define nd_remove_registration(cur_interface, l_type, ll_address) ((void)0)
+#endif
+
+nd_router_t *nd_get_pana_address(void);
+/* This processes the 6CO for the interface itself - separate from the ABRO
+ * multihop relay storage.
+ *
+ *  0                   1                   2                   3
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |     Type      |     Length    |Context Length | Res |C|  CID  |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |            Reserved           |         Valid Lifetime        |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * .                                                               .
+ * .                       Context Prefix                          .
+ * .                                                               .
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ */
+void nd_ra_process_lowpan_context_option(struct protocol_interface_info_entry *cur, const uint8_t *opt);
+
+/** ND Routing Part */
+uint8_t nd_prefix_dst_check(uint8_t *ptr);
+nd_router_t *nd_get_object_by_nwk_id(nwk_interface_id nwk_id);
+/* Original ABRO-based all-in-one parser. This needs some rework to separate ABRO-related and unrelated bits */
+/* Returns "false" if ABRO suggested it was a stale message, so not worth handling in the normal code */
+extern bool nd_ra_process_abro(struct protocol_interface_info_entry *cur, buffer_t *buf, const uint8_t *dptr, uint8_t ra_flags, uint16_t router_lifetime);
+extern void nd_object_timer(struct protocol_interface_info_entry *cur_interface, uint16_t ticks_update);
+extern uint32_t nd_object_time_to_next_nd_reg(void);
+
+extern void icmp_nd_router_object_reset(nd_router_t *router_object);
+extern void icmp_nd_border_router_release(nd_router_t *router_object);
+void nd_6lowpan_set_radv_params(protocol_interface_info_entry_t *cur_interface);
+#else
+#define icmp_nd_routers_init() ((void)0)
+#define nd_ns_aro_handler(cur_interface, aro_opt, slaa_opt, target, aro_out) false
+#define nd_ra_build_by_abro(abro, dest, cur_interface) ((void)0)
+#define nd_trigger_ras_from_rs(unicast_adr, cur_interface) ((void)0)
+#define nd_ra_timing(abro) NULL
+#define nd_prefix_dst_check(x) 0
+#define nd_get_object_by_nwk_id(x) NULL
+#define nd_ra_process_abro(x,y,z,a,b) false
+#define nd_ra_process_lowpan_context_option(x,y) ((void)0)
+#define nd_get_pana_address() NULL
+#define nd_object_timer(x, ticks_update) ((void)0)
+#define nd_object_time_to_next_nd_reg() 0
+#define nd_object_active() false
+#define gp_address_list_free(list) ((void)0)
+#define gp_address_add_to_end(list, address) ((void)0)
+#define nd_6lowpan_set_radv_params(cur) ((void)0)
+#define nd_remove_registration(cur_interface, l_type, ll_address) ((void)0)
+#endif
+#endif /* ND_ROUTER_OBJECT_H_ */