sn_grs.h

00001 /*
00002  * Copyright (c) 2011-2015 ARM Limited. All rights reserved.
00003  * SPDX-License-Identifier: Apache-2.0
00004  * Licensed under the Apache License, Version 2.0 (the License); you may
00005  * not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  * http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an AS IS BASIS, WITHOUT
00012  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 #ifndef GRS_H_
00017 #define GRS_H_
00018 
00019 
00020 #ifdef __cplusplus
00021 extern "C" {
00022 #endif
00023 
00024 
00025 #define SN_GRS_RESOURCE_ALREADY_EXISTS  -2
00026 #define SN_GRS_INVALID_PATH             -3
00027 #define SN_GRS_LIST_ADDING_FAILURE      -4
00028 #define SN_GRS_RESOURCE_UPDATED     -5
00029 
00030 #define ACCESS_DENIED           -6
00031 
00032 #define SN_GRS_DELETE_METHOD    0
00033 #define SN_GRS_SEARCH_METHOD    1
00034 
00035 #define SN_GRS_DEFAULT_ACCESS   0x0F
00036 
00037 #define SN_NDSL_RESOURCE_NOT_REGISTERED 0
00038 #define SN_NDSL_RESOURCE_REGISTERING    1
00039 #define SN_NDSL_RESOURCE_REGISTERED     2
00040 
00041 /***** Structs *****/
00042 
00043 typedef struct sn_grs_version_ {
00044     uint8_t major_version;
00045     uint8_t minor_version;
00046     uint8_t build;
00047 } sn_grs_version_s;
00048 
00049 typedef NS_LIST_HEAD(sn_nsdl_resource_info_s, link) resource_list_t;
00050 
00051 struct grs_s {
00052     struct coap_s *coap;
00053 
00054     uint16_t resource_root_count;
00055     resource_list_t resource_root_list;
00056 
00057     void    *(*sn_grs_alloc)(uint16_t);
00058     void (*sn_grs_free)(void *);
00059     uint8_t (*sn_grs_tx_callback)(struct nsdl_s *, sn_nsdl_capab_e , uint8_t *, uint16_t, sn_nsdl_addr_s *);
00060     int8_t (*sn_grs_rx_callback)(struct nsdl_s *, sn_coap_hdr_s *, sn_nsdl_addr_s *);
00061 };
00062 
00063 
00064 struct nsdl_s {
00065     struct grs_s *grs;
00066 
00067     uint8_t *oma_bs_address_ptr;                                                /* Bootstrap address pointer. If null, no bootstrap in use */
00068     uint8_t oma_bs_address_len;                                                 /* Bootstrap address length */
00069     uint16_t oma_bs_port;                                                       /* Bootstrap port */
00070     void (*sn_nsdl_oma_bs_done_cb)(sn_nsdl_oma_server_info_t *server_info_ptr); /* Callback to inform application when bootstrap is done */
00071 
00072     sn_nsdl_ep_parameters_s *ep_information_ptr;    // Endpoint parameters, Name, Domain etc..
00073     sn_nsdl_oma_server_info_t *nsp_address_ptr;     // NSP server address information
00074     uint8_t sn_nsdl_endpoint_registered;
00075 
00076     uint16_t register_msg_id;
00077     uint16_t unregister_msg_id;
00078 
00079     void *(*sn_nsdl_alloc)(uint16_t);
00080     void (*sn_nsdl_free)(void *);
00081     uint8_t (*sn_nsdl_tx_callback)(struct nsdl_s *, sn_nsdl_capab_e , uint8_t *, uint16_t, sn_nsdl_addr_s *);
00082     uint8_t (*sn_nsdl_rx_callback)(struct nsdl_s *, sn_coap_hdr_s *, sn_nsdl_addr_s *);
00083 };
00084 
00085 /***** Function prototypes *****/
00086 /**
00087  *  \fn extern grs_s *sn_grs_init   (uint8_t (*sn_grs_tx_callback_ptr)(sn_nsdl_capab_e , uint8_t *, uint16_t,
00088  *                                  sn_nsdl_addr_s *), uint8_t (*sn_grs_rx_callback_ptr)(sn_coap_hdr_s *, sn_nsdl_addr_s *),
00089  *                                  sn_grs_mem_s *sn_memory)
00090  *
00091  *  \brief GRS library initialize function.
00092  *
00093  *  This function initializes GRS and CoAP.
00094  *
00095  *  \param  sn_grs_tx_callback      A function pointer to a transmit callback function. Should return 1 when succeed, 0 when failed
00096  *  \param  *sn_grs_rx_callback_ptr A function pointer to a receiving callback function. If received packet is not for GRS, it will be passed to
00097  *                                  upper level (NSDL) to be proceed.
00098  *  \param  sn_memory               A pointer to a structure containing the platform specific functions for memory allocation and free.
00099  *
00100  *  \return success pointer to handle, failure = NULL
00101  *
00102 */
00103 extern struct grs_s *sn_grs_init(uint8_t (*sn_grs_tx_callback_ptr)(struct nsdl_s *, sn_nsdl_capab_e , uint8_t *, uint16_t,
00104                                  sn_nsdl_addr_s *), int8_t (*sn_grs_rx_callback_ptr)(struct nsdl_s *, sn_coap_hdr_s *, sn_nsdl_addr_s *), void *(*sn_grs_alloc)(uint16_t), void (*sn_grs_free)(void *));
00105 
00106 extern const sn_nsdl_resource_info_s    *sn_grs_get_first_resource(struct grs_s *handle);
00107 extern const sn_nsdl_resource_info_s    *sn_grs_get_next_resource(struct grs_s *handle, const sn_nsdl_resource_info_s *sn_grs_current_resource);
00108 extern int8_t                           sn_grs_process_coap(struct nsdl_s *handle, sn_coap_hdr_s *coap_packet_ptr, sn_nsdl_addr_s *src);
00109 extern sn_nsdl_resource_info_s          *sn_grs_search_resource(struct grs_s *handle, uint16_t pathlen, uint8_t *path, uint8_t search_method);
00110 extern int8_t                           sn_grs_destroy(struct grs_s *handle);
00111 extern sn_grs_resource_list_s           *sn_grs_list_resource(struct grs_s *handle, uint16_t pathlen, uint8_t *path);
00112 extern void                             sn_grs_free_resource_list(struct grs_s *handle, sn_grs_resource_list_s *list);
00113 extern int8_t                           sn_grs_update_resource(struct grs_s *handle, sn_nsdl_resource_info_s *res);
00114 extern int8_t                           sn_grs_send_coap_message(struct nsdl_s *handle, sn_nsdl_addr_s *address_ptr, sn_coap_hdr_s *coap_hdr_ptr);
00115 extern int8_t                           sn_grs_create_resource(struct grs_s *handle, sn_nsdl_resource_info_s *res);
00116 extern int8_t                           sn_grs_delete_resource(struct grs_s *handle, uint16_t pathlen, uint8_t *path);
00117 extern void                             sn_grs_mark_resources_as_registered(struct nsdl_s *handle);
00118 
00119 #ifdef __cplusplus
00120 }
00121 #endif
00122 
00123 
00124 
00125 
00126 #endif /* GRS_H_ */
00127