From 869f9d3bca34b49afc5c88c65a09b5dd1eb9a9fc Mon Sep 17 00:00:00 2001 From: Jin-Seong Kim Date: Fri, 24 Mar 2017 11:25:11 +0900 Subject: [PATCH] netutils: introduce er-coap library This commit adds er-coap library - er-coap library : er-coap-13 from wakaama Change-Id: I29f034958a8161e7136a0347cb521f8afcf40dfc Signed-off-by: Jin-Seong Kim --- apps/include/netutils/er-coap/LICENSE | 30 + apps/include/netutils/er-coap/er-coap-13.h | 391 ++++++ apps/include/netutils/er-coap/er-coap-conf.h | 105 ++ apps/include/netutils/er-coap/er-coap-constants.h | 166 +++ apps/netutils/Kconfig | 1 + apps/netutils/er-coap/Kconfig | 34 + apps/netutils/er-coap/LICENSE | 30 + apps/netutils/er-coap/Makefile | 115 ++ apps/netutils/er-coap/er-coap-13.c | 1368 +++++++++++++++++++++ 9 files changed, 2240 insertions(+) create mode 100644 apps/include/netutils/er-coap/LICENSE create mode 100644 apps/include/netutils/er-coap/er-coap-13.h create mode 100644 apps/include/netutils/er-coap/er-coap-conf.h create mode 100644 apps/include/netutils/er-coap/er-coap-constants.h create mode 100644 apps/netutils/er-coap/Kconfig create mode 100644 apps/netutils/er-coap/LICENSE create mode 100755 apps/netutils/er-coap/Makefile create mode 100644 apps/netutils/er-coap/er-coap-13.c diff --git a/apps/include/netutils/er-coap/LICENSE b/apps/include/netutils/er-coap/LICENSE new file mode 100644 index 0000000..0cf394b --- /dev/null +++ b/apps/include/netutils/er-coap/LICENSE @@ -0,0 +1,30 @@ +/* + * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + */ diff --git a/apps/include/netutils/er-coap/er-coap-13.h b/apps/include/netutils/er-coap/er-coap-13.h new file mode 100644 index 0000000..430dba2 --- /dev/null +++ b/apps/include/netutils/er-coap/er-coap-13.h @@ -0,0 +1,391 @@ +/* + * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + */ + +/** + * \file + * An implementation of the Constrained Application Protocol (draft 12) + * \author + * Matthias Kovatsch + * \contributors + * David Navarro, Intel Corporation - Adapt to usage in liblwm2m + */ + + +#ifndef COAP_13_H_ +#define COAP_13_H_ + +#include +#include /* for size_t */ + +/* + * The maximum buffer size that is provided for resource responses and must be respected due to the limited IP buffer. + * Larger data must be handled by the resource and will be sent chunk-wise through a TCP stream or CoAP blocks. + */ +#ifndef REST_MAX_CHUNK_SIZE +#define REST_MAX_CHUNK_SIZE 128 +#endif + +#define COAP_DEFAULT_MAX_AGE 60 +#define COAP_RESPONSE_TIMEOUT 2 +#define COAP_MAX_RETRANSMIT 4 + +#define COAP_HEADER_LEN 4 /* | version:0x03 type:0x0C tkl:0xF0 | code | mid:0x00FF | mid:0xFF00 | */ +#define COAP_ETAG_LEN 8 /* The maximum number of bytes for the ETag */ +#define COAP_TOKEN_LEN 8 /* The maximum number of bytes for the Token */ +#define COAP_MAX_ACCEPT_NUM 2 /* The maximum number of accept preferences to parse/store */ + +#define COAP_MAX_OPTION_HEADER_LEN 5 + +#define COAP_HEADER_VERSION_MASK 0xC0 +#define COAP_HEADER_VERSION_POSITION 6 +#define COAP_HEADER_TYPE_MASK 0x30 +#define COAP_HEADER_TYPE_POSITION 4 +#define COAP_HEADER_TOKEN_LEN_MASK 0x0F +#define COAP_HEADER_TOKEN_LEN_POSITION 0 + +#define COAP_HEADER_OPTION_DELTA_MASK 0xF0 +#define COAP_HEADER_OPTION_SHORT_LENGTH_MASK 0x0F + +/* + * Conservative size limit, as not all options have to be set at the same time. + */ +#ifndef COAP_MAX_HEADER_SIZE +/* Hdr CoT Age Tag Obs Tok Blo strings */ +#define COAP_MAX_HEADER_SIZE (4 + 3 + 5 + 1+COAP_ETAG_LEN + 3 + 1+COAP_TOKEN_LEN + 4 + 30) /* 70 */ +#endif /* COAP_MAX_HEADER_SIZE */ + +#define COAP_MAX_PACKET_SIZE (COAP_MAX_HEADER_SIZE + REST_MAX_CHUNK_SIZE) +/* 0/14 48 for IPv6 (28 for IPv4) */ +// #if COAP_MAX_PACKET_SIZE > (UIP_BUFSIZE - UIP_LLH_LEN - UIP_IPUDPH_LEN) +//#error "UIP_CONF_BUFFER_SIZE too small for REST_MAX_CHUNK_SIZE" +// #endif + + +/* Bitmap for set options */ +enum { OPTION_MAP_SIZE = sizeof(uint8_t) * 8 }; +#define SET_OPTION(packet, opt) ((packet)->options[opt / OPTION_MAP_SIZE] |= 1 << (opt % OPTION_MAP_SIZE)) +#define IS_OPTION(packet, opt) ((packet)->options[opt / OPTION_MAP_SIZE] & (1 << (opt % OPTION_MAP_SIZE))) + +#ifndef MIN +#define MIN(a, b) ((a) < (b)? (a) : (b)) +#endif /* MIN */ + +/* CoAP message types */ +typedef enum { + COAP_TYPE_CON, /* confirmables */ + COAP_TYPE_NON, /* non-confirmables */ + COAP_TYPE_ACK, /* acknowledgements */ + COAP_TYPE_RST /* reset */ +} coap_message_type_t; + +/* CoAP request method codes */ +typedef enum { + COAP_GET = 1, + COAP_POST, + COAP_PUT, + COAP_DELETE +} coap_method_t; + +/* CoAP response codes */ +typedef enum { + NO_ERROR = 0, + + CREATED_2_01 = 65, /* CREATED */ + DELETED_2_02 = 66, /* DELETED */ + VALID_2_03 = 67, /* NOT_MODIFIED */ + CHANGED_2_04 = 68, /* CHANGED */ + CONTENT_2_05 = 69, /* OK */ + + BAD_REQUEST_4_00 = 128, /* BAD_REQUEST */ + UNAUTHORIZED_4_01 = 129, /* UNAUTHORIZED */ + BAD_OPTION_4_02 = 130, /* BAD_OPTION */ + FORBIDDEN_4_03 = 131, /* FORBIDDEN */ + NOT_FOUND_4_04 = 132, /* NOT_FOUND */ + METHOD_NOT_ALLOWED_4_05 = 133, /* METHOD_NOT_ALLOWED */ + NOT_ACCEPTABLE_4_06 = 134, /* NOT_ACCEPTABLE */ + PRECONDITION_FAILED_4_12 = 140, /* BAD_REQUEST */ + REQUEST_ENTITY_TOO_LARGE_4_13 = 141, /* REQUEST_ENTITY_TOO_LARGE */ + UNSUPPORTED_MEDIA_TYPE_4_15 = 143, /* UNSUPPORTED_MEDIA_TYPE */ + + INTERNAL_SERVER_ERROR_5_00 = 160, /* INTERNAL_SERVER_ERROR */ + NOT_IMPLEMENTED_5_01 = 161, /* NOT_IMPLEMENTED */ + BAD_GATEWAY_5_02 = 162, /* BAD_GATEWAY */ + SERVICE_UNAVAILABLE_5_03 = 163, /* SERVICE_UNAVAILABLE */ + GATEWAY_TIMEOUT_5_04 = 164, /* GATEWAY_TIMEOUT */ + PROXYING_NOT_SUPPORTED_5_05 = 165, /* PROXYING_NOT_SUPPORTED */ + + /* Erbium errors */ + MEMORY_ALLOCATION_ERROR = 192, + PACKET_SERIALIZATION_ERROR, + + /* Erbium hooks */ + MANUAL_RESPONSE + +} coap_status_t; + +/* CoAP header options */ +typedef enum { + COAP_OPTION_IF_MATCH = 1, /* 0-8 B */ + COAP_OPTION_URI_HOST = 3, /* 1-255 B */ + COAP_OPTION_ETAG = 4, /* 1-8 B */ + COAP_OPTION_IF_NONE_MATCH = 5, /* 0 B */ + COAP_OPTION_OBSERVE = 6, /* 0-3 B */ + COAP_OPTION_URI_PORT = 7, /* 0-2 B */ + COAP_OPTION_LOCATION_PATH = 8, /* 0-255 B */ + COAP_OPTION_URI_PATH = 11, /* 0-255 B */ + COAP_OPTION_CONTENT_TYPE = 12, /* 0-2 B */ + COAP_OPTION_MAX_AGE = 14, /* 0-4 B */ + COAP_OPTION_URI_QUERY = 15, /* 0-270 B */ + COAP_OPTION_ACCEPT = 17, /* 0-2 B */ + COAP_OPTION_TOKEN = 19, /* 1-8 B */ + COAP_OPTION_LOCATION_QUERY = 20, /* 1-270 B */ + COAP_OPTION_BLOCK2 = 23, /* 1-3 B */ + COAP_OPTION_BLOCK1 = 27, /* 1-3 B */ + COAP_OPTION_SIZE = 28, /* 0-4 B */ + COAP_OPTION_PROXY_URI = 35, /* 1-270 B */ +} coap_option_t; + +/* CoAP Content-Types */ +typedef enum { + TEXT_PLAIN = 0, + TEXT_XML = 1, /* Indented types are not in the initial registry. */ + TEXT_CSV = 2, + TEXT_HTML = 3, + IMAGE_GIF = 21, + IMAGE_JPEG = 22, + IMAGE_PNG = 23, + IMAGE_TIFF = 24, + AUDIO_RAW = 25, + VIDEO_RAW = 26, + APPLICATION_LINK_FORMAT = 40, + APPLICATION_XML = 41, + APPLICATION_OCTET_STREAM = 42, + APPLICATION_RDF_XML = 43, + APPLICATION_SOAP_XML = 44, + APPLICATION_ATOM_XML = 45, + APPLICATION_XMPP_XML = 46, + APPLICATION_EXI = 47, + APPLICATION_FASTINFOSET = 48, + APPLICATION_SOAP_FASTINFOSET = 49, + APPLICATION_JSON = 50, + APPLICATION_X_OBIX_BINARY = 51, + APPLICATION_FILLER=65535, +} coap_content_type_t; + +typedef struct _multi_option_t { + struct _multi_option_t *next; + uint8_t is_static; + uint8_t len; + uint8_t *data; +} multi_option_t; + +/* Parsed message struct */ +typedef struct { + uint8_t *buffer; /* pointer to CoAP header / incoming packet buffer / memory to serialize packet */ + + uint8_t version; + coap_message_type_t type; + uint8_t code; + uint16_t mid; + + uint8_t options[COAP_OPTION_PROXY_URI / OPTION_MAP_SIZE + 1]; /* Bitmap to check if option is set */ + + coap_content_type_t content_type; /* Parse options once and store; allows setting options in random order */ + uint32_t max_age; + size_t proxy_uri_len; + const uint8_t *proxy_uri; + uint8_t etag_len; + uint8_t etag[COAP_ETAG_LEN]; + size_t uri_host_len; + const uint8_t *uri_host; + multi_option_t *location_path; + uint16_t uri_port; + size_t location_query_len; + uint8_t *location_query; + multi_option_t *uri_path; + uint32_t observe; + uint8_t token_len; + uint8_t token[COAP_TOKEN_LEN]; + uint8_t accept_num; + uint16_t accept[COAP_MAX_ACCEPT_NUM]; + uint8_t if_match_len; + uint8_t if_match[COAP_ETAG_LEN]; + uint32_t block2_num; + uint8_t block2_more; + uint16_t block2_size; + uint32_t block2_offset; + uint32_t block1_num; + uint8_t block1_more; + uint16_t block1_size; + uint32_t block1_offset; + uint32_t size; + multi_option_t *uri_query; + uint8_t if_none_match; + + uint16_t payload_len; + uint8_t *payload; + +} coap_packet_t; + +/* Option format serialization*/ +#define COAP_SERIALIZE_INT_OPTION(number, field, text) \ + if (IS_OPTION(coap_pkt, number)) { \ + PRINTF(text" [%u]\n", coap_pkt->field); \ + option += coap_serialize_int_option(number, current_number, option, coap_pkt->field); \ + current_number = number; \ + } +#define COAP_SERIALIZE_BYTE_OPTION(number, field, text) \ + if (IS_OPTION(coap_pkt, number)) { \ + PRINTF(text" %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", coap_pkt->field##_len, \ + coap_pkt->field[0], \ + coap_pkt->field[1], \ + coap_pkt->field[2], \ + coap_pkt->field[3], \ + coap_pkt->field[4], \ + coap_pkt->field[5], \ + coap_pkt->field[6], \ + coap_pkt->field[7] \ + ); /*FIXME always prints 8 bytes */ \ + option += coap_serialize_array_option(number, current_number, option, coap_pkt->field, coap_pkt->field##_len, '\0'); \ + current_number = number; \ + } +#define COAP_SERIALIZE_STRING_OPTION(number, field, splitter, text) \ + if (IS_OPTION(coap_pkt, number)) { \ + PRINTF(text" [%.*s]\n", coap_pkt->field##_len, coap_pkt->field); \ + option += coap_serialize_array_option(number, current_number, option, (uint8_t *) coap_pkt->field, coap_pkt->field##_len, splitter); \ + current_number = number; \ + } +#define COAP_SERIALIZE_MULTI_OPTION(number, field, text) \ + if (IS_OPTION(coap_pkt, number)) { \ + PRINTF(text); \ + option += coap_serialize_multi_option(number, current_number, option, coap_pkt->field); \ + current_number = number; \ + } +#define COAP_SERIALIZE_ACCEPT_OPTION(number, field, text) \ + if (IS_OPTION(coap_pkt, number)) { \ + int i; \ + for (i=0; ifield##_num; ++i) \ + { \ + PRINTF(text" [%u]\n", coap_pkt->field[i]); \ + option += coap_serialize_int_option(number, current_number, option, coap_pkt->field[i]); \ + current_number = number; \ + } \ + } +#define COAP_SERIALIZE_BLOCK_OPTION(number, field, text) \ + if (IS_OPTION(coap_pkt, number)) \ + { \ + PRINTF(text" [%lu%s (%u B/blk)]\n", coap_pkt->field##_num, coap_pkt->field##_more ? "+" : "", coap_pkt->field##_size); \ + uint32_t block = coap_pkt->field##_num << 4; \ + if (coap_pkt->field##_more) block |= 0x8; \ + block |= 0xF & coap_log_2(coap_pkt->field##_size/16); \ + PRINTF(text" encoded: 0x%lX\n", block); \ + option += coap_serialize_int_option(number, current_number, option, block); \ + current_number = number; \ + } + +/* To store error code and human-readable payload */ +extern const char *coap_error_message; + +uint16_t coap_get_mid(void); + +void coap_init_message(void *packet, coap_message_type_t type, uint8_t code, uint16_t mid); +size_t coap_serialize_get_size(void *packet); +size_t coap_serialize_message(void *packet, uint8_t *buffer); +coap_status_t coap_parse_message(void *request, uint8_t *data, uint16_t data_len); +void coap_free_header(void *packet); + +char * coap_get_multi_option_as_string(multi_option_t * option); +void coap_add_multi_option(multi_option_t **dst, uint8_t *option, size_t option_len, uint8_t is_static); +void free_multi_option(multi_option_t *dst); + +int coap_get_query_variable(void *packet, const char *name, const char **output); +int coap_get_post_variable(void *packet, const char *name, const char **output); + +/*-----------------------------------------------------------------------------------*/ + +int coap_set_status_code(void *packet, unsigned int code); + +unsigned int coap_get_header_content_type(void *packet); +int coap_set_header_content_type(void *packet, unsigned int content_type); + +int coap_get_header_accept(void *packet, const uint16_t **accept); +int coap_set_header_accept(void *packet, uint16_t accept); + +int coap_get_header_max_age(void *packet, uint32_t *age); +int coap_set_header_max_age(void *packet, uint32_t age); + +int coap_get_header_etag(void *packet, const uint8_t **etag); +int coap_set_header_etag(void *packet, const uint8_t *etag, size_t etag_len); + +int coap_get_header_if_match(void *packet, const uint8_t **etag); +int coap_set_header_if_match(void *packet, const uint8_t *etag, size_t etag_len); + +int coap_get_header_if_none_match(void *packet); +int coap_set_header_if_none_match(void *packet); + +int coap_get_header_token(void *packet, const uint8_t **token); +int coap_set_header_token(void *packet, const uint8_t *token, size_t token_len); + +int coap_get_header_proxy_uri(void *packet, const char **uri); /* In-place string might not be 0-terminated. */ +int coap_set_header_proxy_uri(void *packet, const char *uri); + +int coap_get_header_uri_host(void *packet, const char **host); /* In-place string might not be 0-terminated. */ +int coap_set_header_uri_host(void *packet, const char *host); + +int coap_get_header_uri_path(void *packet, const char **path); /* In-place string might not be 0-terminated. */ +int coap_set_header_uri_path(void *packet, const char *path); +int coap_set_header_uri_path_segment(void *packet, const char *path); + +int coap_get_header_uri_query(void *packet, const char **query); /* In-place string might not be 0-terminated. */ +int coap_set_header_uri_query(void *packet, const char *query); + +int coap_get_header_location_path(void *packet, const char **path); /* In-place string might not be 0-terminated. */ +int coap_set_header_location_path(void *packet, const char *path); /* Also splits optional query into Location-Query option. */ + +int coap_get_header_location_query(void *packet, const char **query); /* In-place string might not be 0-terminated. */ +int coap_set_header_location_query(void *packet, char *query); + +int coap_get_header_observe(void *packet, uint32_t *observe); +int coap_set_header_observe(void *packet, uint32_t observe); + +int coap_get_header_block2(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset); +int coap_set_header_block2(void *packet, uint32_t num, uint8_t more, uint16_t size); + +int coap_get_header_block1(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset); +int coap_set_header_block1(void *packet, uint32_t num, uint8_t more, uint16_t size); + +int coap_get_header_size(void *packet, uint32_t *size); +int coap_set_header_size(void *packet, uint32_t size); + +int coap_get_payload(void *packet, const uint8_t **payload); +int coap_set_payload(void *packet, const void *payload, size_t length); + +#endif /* COAP_13_H_ */ diff --git a/apps/include/netutils/er-coap/er-coap-conf.h b/apps/include/netutils/er-coap/er-coap-conf.h new file mode 100644 index 0000000..b5fcd89 --- /dev/null +++ b/apps/include/netutils/er-coap/er-coap-conf.h @@ -0,0 +1,105 @@ +/* + * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + */ + +/** + * \file + * Collection of default configuration values. + * \author + * Matthias Kovatsch + */ + +#ifndef ER_COAP_CONF_H_ +#define ER_COAP_CONF_H_ + +/* Features that can be disabled to achieve smaller memory footprint */ +#define COAP_LINK_FORMAT_FILTERING 0 +#define COAP_PROXY_OPTION_PROCESSING 0 + +/** + * @brief This definition describes listening port for the CoAP library + **/ +#ifdef CONFIG_NETUTILS_ERCOAP_SERVER_PORT +#define COAP_SERVER_PORT CONFIG_NETUTILS_ERCOAP_SERVER_PORT +#else +#define COAP_SERVER_PORT COAP_DEFAULT_PORT +#endif + +/* The number of concurrent messages that can be stored for retransmission in the transaction layer. */ +#ifndef COAP_MAX_OPEN_TRANSACTIONS +#define COAP_MAX_OPEN_TRANSACTIONS 4 +#endif /* COAP_MAX_OPEN_TRANSACTIONS */ + +/** + * @brief This definition describes maximum number of failed request attempts before action + */ +#ifdef CONFIG_NETUTILS_ERCOAP_MAX_ATTEMPTS +#define COAP_MAX_ATTEMPTS CONFIG_NETUTILS_ERCOAP_MAX_ATTEMPTS +#else +#define COAP_MAX_ATTEMPTS 4 +#endif /* CONFIG_NETUTILS_ERCOAP_MAX_ATTEMPTS */ + +/** + * @brief This definition describes that conservative size limit, as not all options have to be set at the same time. Check when Proxy-Uri option is used +*/ +#ifdef CONFIG_NETUILTS_ERCOAP_MAX_HEADER_SIZE +#define COAP_MAX_HEADER_SIZE CONFIG_NETUTIlS_ERCOAP_MAX_HEADER_SIZE +#else + /* Hdr CoF If-Match Obs Blo strings */ +#define COAP_MAX_HEADER_SIZE (4 + COAP_TOKEN_LEN + 3 + 1 + COAP_ETAG_LEN + 4 + 4 + 30) /* 65 */ +#endif /* CONFIG_NETUTILS_ERCOAP_MAX_HEADER_SIZE */ + +/* Number of observer slots (each takes abot xxx bytes) */ +#ifndef COAP_MAX_OBSERVERS +#define COAP_MAX_OBSERVERS COAP_MAX_OPEN_TRANSACTIONS - 1 +#endif /* COAP_MAX_OBSERVERS */ + +/* Interval in notifies in which NON notifies are changed to CON notifies to check client. */ +#define COAP_OBSERVE_REFRESH_INTERVAL 20 + +/** + * @brief This definition describes that CoAP message will be sent over TCP + */ +#ifdef CONFIG_NETUTILS_ERCOAP_TCP_SUPPORT +#define COAP_TCP_SUPPORT 1 +#else +#define COAP_TCP_SUPPORT 0 +#endif + +/** + * @brief This definition describes that CoAP library supports TLS + */ +#ifdef CONFIG_NETUTILS_ERCOAP_TLS_SUPPORT +#define COAP_TLS_SUPPORT 1 +#else +#define COAP_TLS_SUPPORT 0 +#endif + +#endif /* ER_COAP_CONF_H_ */ diff --git a/apps/include/netutils/er-coap/er-coap-constants.h b/apps/include/netutils/er-coap/er-coap-constants.h new file mode 100644 index 0000000..cfa73ab --- /dev/null +++ b/apps/include/netutils/er-coap/er-coap-constants.h @@ -0,0 +1,166 @@ +/* + * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + */ + +/** + * \file + * Collection of constants specified in the CoAP standard. + * \author + * Matthias Kovatsch + */ + +#ifndef ER_COAP_CONSTANTS_H_ +#define ER_COAP_CONSTANTS_H_ + +#define COAP_DEFAULT_PORT 5683 + +#define COAP_DEFAULT_MAX_AGE 60 +#define COAP_RESPONSE_TIMEOUT 3 +#define COAP_RESPONSE_RANDOM_FACTOR 1.5 +#define COAP_MAX_RETRANSMIT 4 + +#define COAP_HEADER_LEN 4 /* | version:0x03 type:0x0C tkl:0xF0 | code | mid:0x00FF | mid:0xFF00 | */ +#define COAP_TOKEN_LEN 8 /* The maximum number of bytes for the Token */ +#define COAP_ETAG_LEN 8 /* The maximum number of bytes for the ETag */ + +#define COAP_HEADER_VERSION_MASK 0xC0 +#define COAP_HEADER_VERSION_POSITION 6 +#define COAP_HEADER_TYPE_MASK 0x30 +#define COAP_HEADER_TYPE_POSITION 4 +#define COAP_HEADER_TOKEN_LEN_MASK 0x0F +#define COAP_HEADER_TOKEN_LEN_POSITION 0 + +#define COAP_HEADER_OPTION_DELTA_MASK 0xF0 +#define COAP_HEADER_OPTION_SHORT_LENGTH_MASK 0x0F + +/* CoAP message types */ +typedef enum { + COAP_TYPE_CON, /* confirmables */ + COAP_TYPE_NON, /* non-confirmables */ + COAP_TYPE_ACK, /* acknowledgements */ + COAP_TYPE_RST /* reset */ +} coap_message_type_t; + +/* CoAP request method codes */ +typedef enum { + COAP_GET = 1, + COAP_POST, + COAP_PUT, + COAP_DELETE +} coap_method_t; + +/* CoAP response codes */ +typedef enum { + NO_ERROR = 0, + + CREATED_2_01 = 65, /* CREATED */ + DELETED_2_02 = 66, /* DELETED */ + VALID_2_03 = 67, /* NOT_MODIFIED */ + CHANGED_2_04 = 68, /* CHANGED */ + CONTENT_2_05 = 69, /* OK */ + CONTINUE_2_31 = 95, /* CONTINUE */ + + BAD_REQUEST_4_00 = 128, /* BAD_REQUEST */ + UNAUTHORIZED_4_01 = 129, /* UNAUTHORIZED */ + BAD_OPTION_4_02 = 130, /* BAD_OPTION */ + FORBIDDEN_4_03 = 131, /* FORBIDDEN */ + NOT_FOUND_4_04 = 132, /* NOT_FOUND */ + METHOD_NOT_ALLOWED_4_05 = 133, /* METHOD_NOT_ALLOWED */ + NOT_ACCEPTABLE_4_06 = 134, /* NOT_ACCEPTABLE */ + PRECONDITION_FAILED_4_12 = 140, /* BAD_REQUEST */ + REQUEST_ENTITY_TOO_LARGE_4_13 = 141, /* REQUEST_ENTITY_TOO_LARGE */ + UNSUPPORTED_MEDIA_TYPE_4_15 = 143, /* UNSUPPORTED_MEDIA_TYPE */ + + INTERNAL_SERVER_ERROR_5_00 = 160, /* INTERNAL_SERVER_ERROR */ + NOT_IMPLEMENTED_5_01 = 161, /* NOT_IMPLEMENTED */ + BAD_GATEWAY_5_02 = 162, /* BAD_GATEWAY */ + SERVICE_UNAVAILABLE_5_03 = 163, /* SERVICE_UNAVAILABLE */ + GATEWAY_TIMEOUT_5_04 = 164, /* GATEWAY_TIMEOUT */ + PROXYING_NOT_SUPPORTED_5_05 = 165, /* PROXYING_NOT_SUPPORTED */ + + /* Erbium errors */ + MEMORY_ALLOCATION_ERROR = 192, + PACKET_SERIALIZATION_ERROR, + + /* Erbium hooks */ + MANUAL_RESPONSE, + PING_RESPONSE +} coap_status_t; + +/* CoAP header option numbers */ +typedef enum { + COAP_OPTION_IF_MATCH = 1, /* 0-8 B */ + COAP_OPTION_URI_HOST = 3, /* 1-255 B */ + COAP_OPTION_ETAG = 4, /* 1-8 B */ + COAP_OPTION_IF_NONE_MATCH = 5, /* 0 B */ + COAP_OPTION_OBSERVE = 6, /* 0-3 B */ + COAP_OPTION_URI_PORT = 7, /* 0-2 B */ + COAP_OPTION_LOCATION_PATH = 8, /* 0-255 B */ + COAP_OPTION_URI_PATH = 11, /* 0-255 B */ + COAP_OPTION_CONTENT_FORMAT = 12, /* 0-2 B */ + COAP_OPTION_MAX_AGE = 14, /* 0-4 B */ + COAP_OPTION_URI_QUERY = 15, /* 0-255 B */ + COAP_OPTION_ACCEPT = 17, /* 0-2 B */ + COAP_OPTION_LOCATION_QUERY = 20, /* 0-255 B */ + COAP_OPTION_BLOCK2 = 23, /* 1-3 B */ + COAP_OPTION_BLOCK1 = 27, /* 1-3 B */ + COAP_OPTION_SIZE2 = 28, /* 0-4 B */ + COAP_OPTION_PROXY_URI = 35, /* 1-1034 B */ + COAP_OPTION_PROXY_SCHEME = 39, /* 1-255 B */ + COAP_OPTION_SIZE1 = 60, /* 0-4 B */ +} coap_option_t; + +/* CoAP Content-Formats */ +typedef enum { + TEXT_PLAIN = 0, + TEXT_XML = 1, + TEXT_CSV = 2, + TEXT_HTML = 3, + IMAGE_GIF = 21, + IMAGE_JPEG = 22, + IMAGE_PNG = 23, + IMAGE_TIFF = 24, + AUDIO_RAW = 25, + VIDEO_RAW = 26, + APPLICATION_LINK_FORMAT = 40, + APPLICATION_XML = 41, + APPLICATION_OCTET_STREAM = 42, + APPLICATION_RDF_XML = 43, + APPLICATION_SOAP_XML = 44, + APPLICATION_ATOM_XML = 45, + APPLICATION_XMPP_XML = 46, + APPLICATION_EXI = 47, + APPLICATION_FASTINFOSET = 48, + APPLICATION_SOAP_FASTINFOSET = 49, + APPLICATION_JSON = 50, + APPLICATION_X_OBIX_BINARY = 51 +} coap_content_format_t; + +#endif /* ER_COAP_CONSTANTS_H_ */ diff --git a/apps/netutils/Kconfig b/apps/netutils/Kconfig index b8bf7f0..f254a97 100644 --- a/apps/netutils/Kconfig +++ b/apps/netutils/Kconfig @@ -22,4 +22,5 @@ source "$APPSDIR/netutils/xmlrpc/Kconfig" source "$APPSDIR/netutils/mdns/Kconfig" source "$APPSDIR/netutils/wifi/Kconfig" source "$APPSDIR/netutils/mqtt/Kconfig" +source "$APPSDIR/netutils/er-coap/Kconfig" endmenu diff --git a/apps/netutils/er-coap/Kconfig b/apps/netutils/er-coap/Kconfig new file mode 100644 index 0000000..1a0180b --- /dev/null +++ b/apps/netutils/er-coap/Kconfig @@ -0,0 +1,34 @@ +# +# For a description of the syntax of this configuration file, +# see kconfig-language at https://www.kernel.org/doc/Documentation/kbuild/kconfig-language.txt +# + +config NETUTILS_ERCOAP + bool "CoAP Library (er-coap-13)" + default n + depends on NET_IPv4 + ---help--- + Enable support for er-coap library. + +if NETUTILS_ERCOAP +config NETUTILS_ERCOAP_MAX_ATTEMPTS + int "Maxmium number of failed request attempts" + default 4 + depends on EXPERIMENTAL + ---help--- + Maximum number of failed request attempts before action + +config NETUTILS_ERCOAP_MAX_HEADER_SIZE + int "CoAP maximum header size" + default 67 + ---help--- + Default value + = Hdr(4) + CoT(3) + Age(3) + Tag(1) + Etag(8) + + Obs(3) + Tok(1) + Token(8) + Blo(4) + Strings(30) + +config NETUTILS_ERCOAP_SERVER_PORT + int "CoAP server port" + default 5683 + ---help--- + Default port number used for server listening +endif diff --git a/apps/netutils/er-coap/LICENSE b/apps/netutils/er-coap/LICENSE new file mode 100644 index 0000000..0cf394b --- /dev/null +++ b/apps/netutils/er-coap/LICENSE @@ -0,0 +1,30 @@ +/* + * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + */ diff --git a/apps/netutils/er-coap/Makefile b/apps/netutils/er-coap/Makefile new file mode 100755 index 0000000..be029b9 --- /dev/null +++ b/apps/netutils/er-coap/Makefile @@ -0,0 +1,115 @@ +########################################################################### +# +# Copyright 2016 Samsung Electronics All Rights Reserved. +# +# 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. +# +########################################################################### +############################################################################ +# apps/netutils/er-coap/Makefile +# +# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. Neither the name NuttX nor the names of its contributors may be +# used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS +# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +############################################################################ + +-include $(TOPDIR)/.config +-include $(TOPDIR)/Make.defs +include $(APPDIR)/Make.defs + +# DHCP Daemn Library + +ASRCS = +CSRCS = er-coap-13.c + +AOBJS = $(ASRCS:.S=$(OBJEXT)) +COBJS = $(CSRCS:.c=$(OBJEXT)) + +SRCS = $(ASRCS) $(CSRCS) +OBJS = $(AOBJS) $(COBJS) + +ifeq ($(CONFIG_WINDOWS_NATIVE),y) + BIN = ..\..\libapps$(LIBEXT) +else +ifeq ($(WINTOOL),y) + BIN = ..\\..\\libapps$(LIBEXT) +else + BIN = ../../libapps$(LIBEXT) +endif +endif + +ROOTDEPPATH = --dep-path . + +# Common build + +VPATH = + +all: .built +.PHONY: context depend clean distclean + +$(AOBJS): %$(OBJEXT): %.S + $(call ASSEMBLE, $<, $@) + +$(COBJS): %$(OBJEXT): %.c + $(call COMPILE, $<, $@) + +.built: $(OBJS) + $(call ARCHIVE, $(BIN), $(OBJS)) + $(Q) touch .built + +install: + +context: + +.depend: Makefile $(SRCS) + $(Q) $(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep + $(Q) touch $@ + +depend: .depend + +clean: + $(call DELFILE, .built) + $(call CLEAN) + +distclean: clean + $(call DELFILE, Make.dep) + $(call DELFILE, .depend) + +-include Make.dep diff --git a/apps/netutils/er-coap/er-coap-13.c b/apps/netutils/er-coap/er-coap-13.c new file mode 100644 index 0000000..8771522 --- /dev/null +++ b/apps/netutils/er-coap/er-coap-13.c @@ -0,0 +1,1368 @@ +/* + * Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * This file is part of the Contiki operating system. + */ + +/** + * \file + * An implementation of the Constrained Application Protocol (draft 12) + * \author + * Matthias Kovatsch + * \contributors + * David Navarro, Intel Corporation - Adapt to usage in liblwm2m + */ + + +#include + +#include +#include + +#include + +#define DEBUG 0 +#if DEBUG +#include +#define PRINTF(...) printf(__VA_ARGS__) +#define PRINT6ADDR(addr) PRINTF("[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]", ((uint8_t *)addr)[0], ((uint8_t *)addr)[1], ((uint8_t *)addr)[2], ((uint8_t *)addr)[3], ((uint8_t *)addr)[4], ((uint8_t *)addr)[5], ((uint8_t *)addr)[6], ((uint8_t *)addr)[7], ((uint8_t *)addr)[8], ((uint8_t *)addr)[9], ((uint8_t *)addr)[10], ((uint8_t *)addr)[11], ((uint8_t *)addr)[12], ((uint8_t *)addr)[13], ((uint8_t *)addr)[14], ((uint8_t *)addr)[15]) +#define PRINTLLADDR(lladdr) PRINTF("[%02x:%02x:%02x:%02x:%02x:%02x]",(lladdr)->addr[0], (lladdr)->addr[1], (lladdr)->addr[2], (lladdr)->addr[3],(lladdr)->addr[4], (lladdr)->addr[5]) +#else +#define PRINTF(...) +#define PRINT6ADDR(addr) +#define PRINTLLADDR(addr) +#endif + +/*-----------------------------------------------------------------------------------*/ +/*- Variables -----------------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +static uint16_t current_mid = 0; + +coap_status_t coap_error_code = NO_ERROR; +const char *coap_error_message = ""; +/*-----------------------------------------------------------------------------------*/ +/*- LOCAL HELP FUNCTIONS ------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +static +uint16_t +coap_log_2(uint16_t value) +{ + uint16_t result = 0; + do { + value = value >> 1; + result++; + } while (value); + + return result ? result - 1 : result; +} +/*-----------------------------------------------------------------------------------*/ +static +uint32_t +coap_parse_int_option(uint8_t *bytes, size_t length) +{ + uint32_t var = 0; + size_t i = 0; + while (i268) + { + buffer[++written] = (*x-269)>>8; + buffer[++written] = (*x-269); + } + else if (*x>12) + { + buffer[++written] = (*x-13); + } + } + while (x!=(unsigned int *)&length && (x=(unsigned int *)&length)); + + PRINTF("WRITTEN %u B opt header\n", written); + + return ++written; +} +/*-----------------------------------------------------------------------------------*/ +static +size_t +coap_serialize_int_option(unsigned int number, unsigned int current_number, uint8_t *buffer, uint32_t value) +{ + size_t i = 0; + + if (0xFF000000 & value) ++i; + if (0xFFFF0000 & value) ++i; + if (0xFFFFFF00 & value) ++i; + if (0xFFFFFFFF & value) ++i; + + PRINTF("OPTION %u (delta %u, len %u)\n", number, number - current_number, i); + + i = coap_set_option_header(number - current_number, i, buffer); + + if (0xFF000000 & value) buffer[i++] = (uint8_t) (value>>24); + if (0xFFFF0000 & value) buffer[i++] = (uint8_t) (value>>16); + if (0xFFFFFF00 & value) buffer[i++] = (uint8_t) (value>>8); + if (0xFFFFFFFF & value) buffer[i++] = (uint8_t) (value); + + return i; +} +/*-----------------------------------------------------------------------------------*/ +static +size_t +coap_serialize_array_option(unsigned int number, unsigned int current_number, uint8_t *buffer, uint8_t *array, size_t length, char split_char) +{ + size_t i = 0; + + if (split_char!='\0') + { + size_t j; + uint8_t *part_start = array; + uint8_t *part_end = NULL; + size_t temp_length; + + for (j = 0; j<=length; ++j) + { + if (array[j]==split_char || j==length) + { + part_end = array + j; + temp_length = part_end-part_start; + + i += coap_set_option_header(number - current_number, temp_length, &buffer[i]); + memcpy(&buffer[i], part_start, temp_length); + i += temp_length; + + PRINTF("OPTION type %u, delta %u, len %u, part [%.*s]\n", number, number - current_number, i, temp_length, part_start); + + ++j; /* skip the splitter */ + current_number = number; + part_start = array + j; + } + } /* for */ + } + else + { + i += coap_set_option_header(number - current_number, length, &buffer[i]); + memcpy(&buffer[i], array, length); + i += length; + + PRINTF("OPTION type %u, delta %u, len %u\n", number, number - current_number, length); + } + + return i; +} +/*-----------------------------------------------------------------------------------*/ +static +size_t +coap_serialize_multi_option(unsigned int number, unsigned int current_number, uint8_t *buffer, multi_option_t *array) +{ + size_t i = 0; + multi_option_t * j; + + for (j = array; j != NULL; j= j->next) + { + i += coap_set_option_header(number - current_number, j->len, &buffer[i]); + current_number = number; + memcpy(&buffer[i], j->data, j->len); + i += j->len; + } /* for */ + + return i; +} +/*-----------------------------------------------------------------------------------*/ +static +void +coap_merge_multi_option(uint8_t **dst, size_t *dst_len, uint8_t *option, size_t option_len, char separator) +{ + /* Merge multiple options. */ + if (*dst_len > 0) + { + /* dst already contains an option: concatenate */ + (*dst)[*dst_len] = separator; + *dst_len += 1; + + /* memmove handles 2-byte option headers */ + memmove((*dst)+(*dst_len), option, option_len); + + *dst_len += option_len; + } + else + { + /* dst is empty: set to option */ + *dst = option; + *dst_len = option_len; + } +} + +void +coap_add_multi_option(multi_option_t **dst, uint8_t *option, size_t option_len, uint8_t is_static) +{ + multi_option_t *opt = (multi_option_t *)malloc(sizeof(multi_option_t)); + + if (opt) + { + opt->next = NULL; + opt->len = (uint8_t)option_len; + if (is_static) + { + opt->data = option; + opt->is_static = 1; + } + else + { + opt->is_static = 0; + opt->data = (uint8_t *)malloc(option_len); + if (opt->data == NULL) + { + free(opt); + return; + } + memcpy(opt->data, option, option_len); + } + + if (*dst) + { + multi_option_t * i = *dst; + while (i->next) + { + i = i->next; + } + i->next = opt; + } + else + { + *dst = opt; + } + } +} + +void +free_multi_option(multi_option_t *dst) +{ + if (dst) + { + multi_option_t *n = dst->next; + dst->next = NULL; + if (dst->is_static == 0) + { + free(dst->data); + } + free(dst); + free_multi_option(n); + } +} + +char * coap_get_multi_option_as_string(multi_option_t * option) +{ + size_t len = 0; + multi_option_t * opt; + char * output; + + for (opt = option; opt != NULL; opt = opt->next) + { + len += opt->len + 1; // for separator + } + + output = malloc(len + 1); // for String terminator + if (output != NULL) + { + size_t i = 0; + + for (opt = option; opt != NULL; opt = opt->next) + { + output[i] = '/'; + i += 1; + + memmove(output + i, opt->data, opt->len); + i += opt->len; + } + output[i] = 0; + } + + return output; +} + +/*-----------------------------------------------------------------------------------*/ +static +int +coap_get_variable(const uint8_t *buffer, size_t length, const char *name, const char **output) +{ + const uint8_t *start = NULL; + const uint8_t *end = NULL; + const uint8_t *value_end = NULL; + size_t name_len = 0; + + /*initialize the output buffer first*/ + *output = 0; + + name_len = strlen(name); + end = buffer + length; + + for (start = buffer; start + name_len < end; ++start){ + if ((start == buffer || start[-1] == '&') && start[name_len] == '=' && + strncmp(name, (char *)start, name_len)==0) { + + /* Point start to variable value */ + start += name_len + 1; + + /* Point end to the end of the value */ + value_end = (const uint8_t *) memchr(start, '&', end - start); + if (value_end == NULL) { + value_end = end; + } + + *output = (char *)start; + + return (value_end - start); + } + } + + return 0; +} + +/*-----------------------------------------------------------------------------------*/ +uint16_t +coap_get_mid() +{ + return ++current_mid; +} +/*-----------------------------------------------------------------------------------*/ +/*- MEASSAGE PROCESSING -------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +void +coap_init_message(void *packet, coap_message_type_t type, uint8_t code, uint16_t mid) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + /* Important thing */ + memset(coap_pkt, 0, sizeof(coap_packet_t)); + + coap_pkt->type = type; + coap_pkt->code = code; + coap_pkt->mid = mid; +} + +void +coap_free_header(void *packet) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + free_multi_option(coap_pkt->uri_path); + free_multi_option(coap_pkt->uri_query); + free_multi_option(coap_pkt->location_path); + coap_pkt->uri_path = NULL; + coap_pkt->uri_query = NULL; + coap_pkt->location_path = NULL; +} + +/*-----------------------------------------------------------------------------------*/ +size_t coap_serialize_get_size(void *packet) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + size_t length = 0; + + length = COAP_HEADER_LEN + coap_pkt->payload_len + coap_pkt->token_len; + + if (IS_OPTION(coap_pkt, COAP_OPTION_IF_MATCH)) + { + length += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->if_match_len; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_URI_HOST)) + { + length += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->uri_host_len; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_ETAG)) + { + length += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->etag_len; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_IF_NONE_MATCH)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_OBSERVE)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_URI_PORT)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH)) + { + multi_option_t * optP; + + for (optP = coap_pkt->location_path ; optP != NULL ; optP = optP->next) + { + length += COAP_MAX_OPTION_HEADER_LEN + optP->len; + } + } + if (IS_OPTION(coap_pkt, COAP_OPTION_URI_PATH)) + { + multi_option_t * optP; + + for (optP = coap_pkt->uri_path ; optP != NULL ; optP = optP->next) + { + length += COAP_MAX_OPTION_HEADER_LEN + optP->len; + } + } + if (IS_OPTION(coap_pkt, COAP_OPTION_CONTENT_TYPE)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_MAX_AGE)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_URI_QUERY)) + { + multi_option_t * optP; + + for (optP = coap_pkt->uri_query ; optP != NULL ; optP = optP->next) + { + length += COAP_MAX_OPTION_HEADER_LEN + optP->len; + } + } + if (IS_OPTION(coap_pkt, COAP_OPTION_ACCEPT)) + { + length += coap_pkt->accept_num * COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_QUERY)) + { + length += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->location_query_len; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_BLOCK2)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_BLOCK1)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_SIZE)) + { + // can be stored in extended fields + length += COAP_MAX_OPTION_HEADER_LEN; + } + if (IS_OPTION(coap_pkt, COAP_OPTION_PROXY_URI)) + { + length += COAP_MAX_OPTION_HEADER_LEN + coap_pkt->proxy_uri_len; + } + + return length; +} + +/*-----------------------------------------------------------------------------------*/ +size_t +coap_serialize_message(void *packet, uint8_t *buffer) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + uint8_t *option; + unsigned int current_number = 0; + + /* Initialize */ + coap_pkt->buffer = buffer; + coap_pkt->version = 1; + + PRINTF("-Serializing MID %u to %p, ", coap_pkt->mid, coap_pkt->buffer); + + /* set header fields */ + coap_pkt->buffer[0] = 0x00; + coap_pkt->buffer[0] |= COAP_HEADER_VERSION_MASK & (coap_pkt->version)<buffer[0] |= COAP_HEADER_TYPE_MASK & (coap_pkt->type)<buffer[0] |= COAP_HEADER_TOKEN_LEN_MASK & (coap_pkt->token_len)<buffer[1] = coap_pkt->code; + coap_pkt->buffer[2] = (uint8_t) ((coap_pkt->mid)>>8); + coap_pkt->buffer[3] = (uint8_t) (coap_pkt->mid); + + /* set Token */ + PRINTF("Token (len %u)", coap_pkt->token_len); + option = coap_pkt->buffer + COAP_HEADER_LEN; + for (current_number=0; current_numbertoken_len; ++current_number) + { + PRINTF(" %02X", coap_pkt->token[current_number]); + *option = coap_pkt->token[current_number]; + ++option; + } + PRINTF("-\n"); + + /* Serialize options */ + current_number = 0; + + PRINTF("-Serializing options at %p-\n", option); + + /* The options must be serialized in the order of their number */ + COAP_SERIALIZE_BYTE_OPTION( COAP_OPTION_IF_MATCH, if_match, "If-Match") + COAP_SERIALIZE_STRING_OPTION( COAP_OPTION_URI_HOST, uri_host, '\0', "Uri-Host") + COAP_SERIALIZE_BYTE_OPTION( COAP_OPTION_ETAG, etag, "ETag") + COAP_SERIALIZE_INT_OPTION( COAP_OPTION_IF_NONE_MATCH, content_type-coap_pkt->content_type, "If-None-Match") /* hack to get a zero field */ + COAP_SERIALIZE_INT_OPTION( COAP_OPTION_OBSERVE, observe, "Observe") + COAP_SERIALIZE_INT_OPTION( COAP_OPTION_URI_PORT, uri_port, "Uri-Port") + COAP_SERIALIZE_MULTI_OPTION( COAP_OPTION_LOCATION_PATH, location_path, "Location-Path") + COAP_SERIALIZE_MULTI_OPTION( COAP_OPTION_URI_PATH, uri_path, "Uri-Path") + COAP_SERIALIZE_INT_OPTION( COAP_OPTION_CONTENT_TYPE, content_type, "Content-Format") + COAP_SERIALIZE_INT_OPTION( COAP_OPTION_MAX_AGE, max_age, "Max-Age") + COAP_SERIALIZE_MULTI_OPTION( COAP_OPTION_URI_QUERY, uri_query, "Uri-Query") + COAP_SERIALIZE_ACCEPT_OPTION( COAP_OPTION_ACCEPT, accept, "Accept") + COAP_SERIALIZE_STRING_OPTION( COAP_OPTION_LOCATION_QUERY, location_query, '&', "Location-Query") + COAP_SERIALIZE_BLOCK_OPTION( COAP_OPTION_BLOCK2, block2, "Block2") + COAP_SERIALIZE_BLOCK_OPTION( COAP_OPTION_BLOCK1, block1, "Block1") + COAP_SERIALIZE_INT_OPTION( COAP_OPTION_SIZE, size, "Size") + COAP_SERIALIZE_STRING_OPTION( COAP_OPTION_PROXY_URI, proxy_uri, '\0', "Proxy-Uri") + + PRINTF("-Done serializing at %p----\n", option); + + /* Free allocated header fields */ + coap_free_header(packet); + + /* Pack payload */ + /* Payload marker */ + if (coap_pkt->payload_len) + { + *option = 0xFF; + ++option; + } + + memmove(option, coap_pkt->payload, coap_pkt->payload_len); + + PRINTF("-Done %u B (header len %u, payload len %u)-\n", coap_pkt->payload_len + option - buffer, option - buffer, coap_pkt->payload_len); + + PRINTF("Dump [0x%02X %02X %02X %02X %02X %02X %02X %02X]\n", + coap_pkt->buffer[0], + coap_pkt->buffer[1], + coap_pkt->buffer[2], + coap_pkt->buffer[3], + coap_pkt->buffer[4], + coap_pkt->buffer[5], + coap_pkt->buffer[6], + coap_pkt->buffer[7] + ); + + return (option - buffer) + coap_pkt->payload_len; /* packet length */ +} +/*-----------------------------------------------------------------------------------*/ +coap_status_t +coap_parse_message(void *packet, uint8_t *data, uint16_t data_len) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + /* Initialize packet */ + memset(coap_pkt, 0, sizeof(coap_packet_t)); + + /* pointer to packet bytes */ + coap_pkt->buffer = data; + + /* parse header fields */ + coap_pkt->version = (COAP_HEADER_VERSION_MASK & coap_pkt->buffer[0])>>COAP_HEADER_VERSION_POSITION; + coap_pkt->type = (COAP_HEADER_TYPE_MASK & coap_pkt->buffer[0])>>COAP_HEADER_TYPE_POSITION; + coap_pkt->token_len = MIN(COAP_TOKEN_LEN, (COAP_HEADER_TOKEN_LEN_MASK & coap_pkt->buffer[0])>>COAP_HEADER_TOKEN_LEN_POSITION); + coap_pkt->code = coap_pkt->buffer[1]; + coap_pkt->mid = coap_pkt->buffer[2]<<8 | coap_pkt->buffer[3]; + + if (coap_pkt->version != 1) + { + coap_error_message = "CoAP version must be 1"; + return BAD_REQUEST_4_00; + } + + uint8_t *current_option = data + COAP_HEADER_LEN; + + if (coap_pkt->token_len != 0) + { + memcpy(coap_pkt->token, current_option, coap_pkt->token_len); + SET_OPTION(coap_pkt, COAP_OPTION_TOKEN); + + PRINTF("Token (len %u) [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", coap_pkt->token_len, + coap_pkt->token[0], + coap_pkt->token[1], + coap_pkt->token[2], + coap_pkt->token[3], + coap_pkt->token[4], + coap_pkt->token[5], + coap_pkt->token[6], + coap_pkt->token[7] + ); /*FIXME always prints 8 bytes */ + } + + /* parse options */ + current_option += coap_pkt->token_len; + + unsigned int option_number = 0; + unsigned int option_delta = 0; + size_t option_length = 0; + + while (current_option < data+data_len) + { + /* Payload marker 0xFF, currently only checking for 0xF* because rest is reserved */ + if ((current_option[0] & 0xF0)==0xF0) + { + coap_pkt->payload = ++current_option; + coap_pkt->payload_len = data_len - (coap_pkt->payload - data); + + break; + } + + option_delta = current_option[0]>>4; + option_length = current_option[0] & 0x0F; + ++current_option; + + /* avoids code duplication without function overhead */ + unsigned int *x = &option_delta; + do + { + if (*x==13) + { + *x += current_option[0]; + ++current_option; + } + else if (*x==14) + { + *x += 255; + *x += current_option[0]<<8; + ++current_option; + *x += current_option[0]; + ++current_option; + } + } + while (x!=(unsigned int *)&option_length && (x=(unsigned int *)&option_length)); + + option_number += option_delta; + + PRINTF("OPTION %u (delta %u, len %u): ", option_number, option_delta, option_length); + + SET_OPTION(coap_pkt, option_number); + + switch (option_number) + { + case COAP_OPTION_CONTENT_TYPE: + coap_pkt->content_type = coap_parse_int_option(current_option, option_length); + PRINTF("Content-Format [%u]\n", coap_pkt->content_type); + break; + case COAP_OPTION_MAX_AGE: + coap_pkt->max_age = coap_parse_int_option(current_option, option_length); + PRINTF("Max-Age [%lu]\n", coap_pkt->max_age); + break; + case COAP_OPTION_ETAG: + coap_pkt->etag_len = (uint8_t)(MIN(COAP_ETAG_LEN, option_length)); + memcpy(coap_pkt->etag, current_option, coap_pkt->etag_len); + PRINTF("ETag %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", coap_pkt->etag_len, + coap_pkt->etag[0], + coap_pkt->etag[1], + coap_pkt->etag[2], + coap_pkt->etag[3], + coap_pkt->etag[4], + coap_pkt->etag[5], + coap_pkt->etag[6], + coap_pkt->etag[7] + ); /*FIXME always prints 8 bytes */ + break; + case COAP_OPTION_ACCEPT: + if (coap_pkt->accept_num < COAP_MAX_ACCEPT_NUM) + { + coap_pkt->accept[coap_pkt->accept_num] = coap_parse_int_option(current_option, option_length); + coap_pkt->accept_num += 1; + PRINTF("Accept [%u]\n", coap_pkt->content_type); + } + break; + case COAP_OPTION_IF_MATCH: + /*FIXME support multiple ETags */ + coap_pkt->if_match_len = (uint8_t)(MIN(COAP_ETAG_LEN, option_length)); + memcpy(coap_pkt->if_match, current_option, coap_pkt->if_match_len); + PRINTF("If-Match %u [0x%02X%02X%02X%02X%02X%02X%02X%02X]\n", coap_pkt->if_match_len, + coap_pkt->if_match[0], + coap_pkt->if_match[1], + coap_pkt->if_match[2], + coap_pkt->if_match[3], + coap_pkt->if_match[4], + coap_pkt->if_match[5], + coap_pkt->if_match[6], + coap_pkt->if_match[7] + ); /*FIXME always prints 8 bytes */ + break; + case COAP_OPTION_IF_NONE_MATCH: + coap_pkt->if_none_match = 1; + PRINTF("If-None-Match\n"); + break; + + case COAP_OPTION_URI_HOST: + coap_pkt->uri_host = current_option; + coap_pkt->uri_host_len = option_length; + PRINTF("Uri-Host [%.*s]\n", coap_pkt->uri_host_len, coap_pkt->uri_host); + break; + case COAP_OPTION_URI_PORT: + coap_pkt->uri_port = coap_parse_int_option(current_option, option_length); + PRINTF("Uri-Port [%u]\n", coap_pkt->uri_port); + break; + case COAP_OPTION_URI_PATH: + /* coap_merge_multi_option() operates in-place on the IPBUF, but final packet field should be const string -> cast to string */ + // coap_merge_multi_option( (char **) &(coap_pkt->uri_path), &(coap_pkt->uri_path_len), current_option, option_length, 0); + coap_add_multi_option( &(coap_pkt->uri_path), current_option, option_length, 1); + PRINTF("Uri-Path [%.*s]\n", option_length, current_option); + break; + case COAP_OPTION_URI_QUERY: + /* coap_merge_multi_option() operates in-place on the IPBUF, but final packet field should be const string -> cast to string */ + // coap_merge_multi_option( (char **) &(coap_pkt->uri_query), &(coap_pkt->uri_query_len), current_option, option_length, '&'); + coap_add_multi_option( &(coap_pkt->uri_query), current_option, option_length, 1); + PRINTF("Uri-Query [%.*s]\n", option_length, current_option); + break; + + case COAP_OPTION_LOCATION_PATH: + coap_add_multi_option( &(coap_pkt->location_path), current_option, option_length, 1); + break; + case COAP_OPTION_LOCATION_QUERY: + /* coap_merge_multi_option() operates in-place on the IPBUF, but final packet field should be const string -> cast to string */ + coap_merge_multi_option( &(coap_pkt->location_query), &(coap_pkt->location_query_len), current_option, option_length, '&'); + PRINTF("Location-Query [%.*s]\n", option_length, current_option); + break; + + case COAP_OPTION_PROXY_URI: + /*FIXME check for own end-point */ + coap_pkt->proxy_uri = current_option; + coap_pkt->proxy_uri_len = option_length; + /*TODO length > 270 not implemented (actually not required) */ + PRINTF("Proxy-Uri NOT IMPLEMENTED [%.*s]\n", coap_pkt->proxy_uri_len, coap_pkt->proxy_uri); + coap_error_message = "This is a constrained server (Contiki)"; + return PROXYING_NOT_SUPPORTED_5_05; + break; + + case COAP_OPTION_OBSERVE: + coap_pkt->observe = coap_parse_int_option(current_option, option_length); + PRINTF("Observe [%lu]\n", coap_pkt->observe); + break; + case COAP_OPTION_BLOCK2: + coap_pkt->block2_num = coap_parse_int_option(current_option, option_length); + coap_pkt->block2_more = (coap_pkt->block2_num & 0x08)>>3; + coap_pkt->block2_size = 16 << (coap_pkt->block2_num & 0x07); + coap_pkt->block2_offset = (coap_pkt->block2_num & ~0x0000000F)<<(coap_pkt->block2_num & 0x07); + coap_pkt->block2_num >>= 4; + PRINTF("Block2 [%lu%s (%u B/blk)]\n", coap_pkt->block2_num, coap_pkt->block2_more ? "+" : "", coap_pkt->block2_size); + break; + case COAP_OPTION_BLOCK1: + coap_pkt->block1_num = coap_parse_int_option(current_option, option_length); + coap_pkt->block1_more = (coap_pkt->block1_num & 0x08)>>3; + coap_pkt->block1_size = 16 << (coap_pkt->block1_num & 0x07); + coap_pkt->block1_offset = (coap_pkt->block1_num & ~0x0000000F)<<(coap_pkt->block1_num & 0x07); + coap_pkt->block1_num >>= 4; + PRINTF("Block1 [%lu%s (%u B/blk)]\n", coap_pkt->block1_num, coap_pkt->block1_more ? "+" : "", coap_pkt->block1_size); + break; + case COAP_OPTION_SIZE: + coap_pkt->size = coap_parse_int_option(current_option, option_length); + PRINTF("Size [%lu]\n", coap_pkt->size); + break; + default: + PRINTF("unknown (%u)\n", option_number); + /* Check if critical (odd) */ + if (option_number & 1) + { + coap_error_message = "Unsupported critical option"; + return BAD_OPTION_4_02; + } + } + + current_option += option_length; + } /* for */ + PRINTF("-Done parsing-------\n"); + + + + return NO_ERROR; +} +/*-----------------------------------------------------------------------------------*/ +/*- REST FRAMEWORK FUNCTIONS --------------------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +int +coap_get_query_variable(void *packet, const char *name, const char **output) +{ +/* + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (IS_OPTION(coap_pkt, COAP_OPTION_URI_QUERY)) { + return coap_get_variable(coap_pkt->uri_query, coap_pkt->uri_query_len, name, output); + } +*/ + return 0; +} + +int +coap_get_post_variable(void *packet, const char *name, const char **output) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (coap_pkt->payload_len) { + return coap_get_variable(coap_pkt->payload, coap_pkt->payload_len, name, output); + } + return 0; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_set_status_code(void *packet, unsigned int code) +{ + if (code <= 0xFF) + { + ((coap_packet_t *)packet)->code = (uint8_t) code; + return 1; + } + else + { + return 0; + } +} +/*-----------------------------------------------------------------------------------*/ +/*- HEADER OPTION GETTERS AND SETTERS -----------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +unsigned int +coap_get_header_content_type(void *packet) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_CONTENT_TYPE)) return -1; + + return coap_pkt->content_type; +} + +int +coap_set_header_content_type(void *packet, unsigned int content_type) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->content_type = (coap_content_type_t) content_type; + SET_OPTION(coap_pkt, COAP_OPTION_CONTENT_TYPE); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_accept(void *packet, const uint16_t **accept) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_ACCEPT)) return 0; + + *accept = coap_pkt->accept; + return coap_pkt->accept_num; +} + +int +coap_set_header_accept(void *packet, uint16_t accept) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (coap_pkt->accept_num < COAP_MAX_ACCEPT_NUM) + { + coap_pkt->accept[coap_pkt->accept_num] = accept; + coap_pkt->accept_num += 1; + + SET_OPTION(coap_pkt, COAP_OPTION_ACCEPT); + } + return coap_pkt->accept_num; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_max_age(void *packet, uint32_t *age) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_MAX_AGE)) { + *age = COAP_DEFAULT_MAX_AGE; + } else { + *age = coap_pkt->max_age; + } + return 1; +} + +int +coap_set_header_max_age(void *packet, uint32_t age) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->max_age = age; + SET_OPTION(coap_pkt, COAP_OPTION_MAX_AGE); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_etag(void *packet, const uint8_t **etag) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_ETAG)) return 0; + + *etag = coap_pkt->etag; + return coap_pkt->etag_len; +} + +int +coap_set_header_etag(void *packet, const uint8_t *etag, size_t etag_len) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->etag_len = (uint8_t)(MIN(COAP_ETAG_LEN, etag_len)); + memcpy(coap_pkt->etag, etag, coap_pkt->etag_len); + + SET_OPTION(coap_pkt, COAP_OPTION_ETAG); + return coap_pkt->etag_len; +} +/*-----------------------------------------------------------------------------------*/ +/*FIXME support multiple ETags */ +int +coap_get_header_if_match(void *packet, const uint8_t **etag) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_IF_MATCH)) return 0; + + *etag = coap_pkt->if_match; + return coap_pkt->if_match_len; +} + +int +coap_set_header_if_match(void *packet, const uint8_t *etag, size_t etag_len) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->if_match_len = (uint8_t)(MIN(COAP_ETAG_LEN, etag_len)); + memcpy(coap_pkt->if_match, etag, coap_pkt->if_match_len); + + SET_OPTION(coap_pkt, COAP_OPTION_IF_MATCH); + return coap_pkt->if_match_len; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_if_none_match(void *packet) +{ + return IS_OPTION((coap_packet_t *)packet, COAP_OPTION_IF_NONE_MATCH) ? 1 : 0; +} + +int +coap_set_header_if_none_match(void *packet) +{ + SET_OPTION((coap_packet_t *)packet, COAP_OPTION_IF_NONE_MATCH); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_token(void *packet, const uint8_t **token) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_TOKEN)) return 0; + + *token = coap_pkt->token; + return coap_pkt->token_len; +} + +int +coap_set_header_token(void *packet, const uint8_t *token, size_t token_len) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->token_len = (uint8_t)(MIN(COAP_TOKEN_LEN, token_len)); + memcpy(coap_pkt->token, token, coap_pkt->token_len); + + SET_OPTION(coap_pkt, COAP_OPTION_TOKEN); + return coap_pkt->token_len; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_proxy_uri(void *packet, const char **uri) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_PROXY_URI)) return 0; + + *uri = (const char *)coap_pkt->proxy_uri; + return coap_pkt->proxy_uri_len; +} + +int +coap_set_header_proxy_uri(void *packet, const char *uri) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->proxy_uri = (const uint8_t *)uri; + coap_pkt->proxy_uri_len = strlen(uri); + + SET_OPTION(coap_pkt, COAP_OPTION_PROXY_URI); + return coap_pkt->proxy_uri_len; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_uri_host(void *packet, const char **host) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_URI_HOST)) return 0; + + *host = (char *)coap_pkt->uri_host; + return coap_pkt->uri_host_len; +} + +int +coap_set_header_uri_host(void *packet, const char *host) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->uri_host = (uint8_t *)host; + coap_pkt->uri_host_len = strlen(host); + + SET_OPTION(coap_pkt, COAP_OPTION_URI_HOST); + return coap_pkt->uri_host_len; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_uri_path(void *packet, const char **path) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_URI_PATH)) return 0; + + *path = NULL; //coap_pkt->uri_path; + return 0; //coap_pkt->uri_path_len; +} + +int +coap_set_header_uri_path(void *packet, const char *path) +{ + coap_packet_t *coap_pkt = (coap_packet_t *) packet; + int length = 0; + + free_multi_option(coap_pkt->uri_path); + coap_pkt->uri_path = NULL; + + if (path[0]=='/') ++path; + + do + { + int i = 0; + + while (path[i] != 0 && path[i] != '/') i++; + coap_add_multi_option(&(coap_pkt->uri_path), (uint8_t *)path, i, 0); + + if (path[i] == '/') i++; + path += i; + length += i; + } while (path[0] != 0); + + SET_OPTION(coap_pkt, COAP_OPTION_URI_PATH); + return length; +} + +int +coap_set_header_uri_path_segment(void *packet, const char *segment) +{ + coap_packet_t *coap_pkt = (coap_packet_t *) packet; + int length; + + if (segment == NULL || segment[0] == 0) + { + coap_add_multi_option(&(coap_pkt->uri_path), NULL, 0, 1); + length = 0; + } + else + { + length = strlen(segment); + coap_add_multi_option(&(coap_pkt->uri_path), (uint8_t *)segment, length, 0); + } + + SET_OPTION(coap_pkt, COAP_OPTION_URI_PATH); + return length; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_uri_query(void *packet, const char **query) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_URI_QUERY)) return 0; + + *query = NULL; //coap_pkt->uri_query; + return 0; //coap_pkt->uri_query_len; +} + +int +coap_set_header_uri_query(void *packet, const char *query) +{ + int length = 0; + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + free_multi_option(coap_pkt->uri_query); + coap_pkt->uri_query = NULL; + + if (query[0]=='?') ++query; + + do + { + int i = 0; + + while (query[i] != 0 && query[i] != '&') i++; + coap_add_multi_option(&(coap_pkt->uri_query), (uint8_t *)query, i, 0); + + if (query[i] == '&') i++; + query += i; + length += i; + } while (query[0] != 0); + + SET_OPTION(coap_pkt, COAP_OPTION_URI_QUERY); + return length; + } +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_location_path(void *packet, const char **path) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH)) return 0; + + *path = NULL; //coap_pkt->location_path; + return 0; //coap_pkt->location_path_len; +} + +int +coap_set_header_location_path(void *packet, const char *path) +{ + coap_packet_t *coap_pkt = (coap_packet_t *) packet; + int length = 0; + + free_multi_option(coap_pkt->location_path); + coap_pkt->location_path = NULL; + + if (path[0]=='/') ++path; + + do + { + int i = 0; + + while (path[i] != 0 && path[i] != '/') i++; + coap_add_multi_option(&(coap_pkt->location_path), (uint8_t *)path, i, 0); + + if (path[i] == '/') i++; + path += i; + length += i; + } while (path[0] != 0); + + SET_OPTION(coap_pkt, COAP_OPTION_LOCATION_PATH); + return length; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_location_query(void *packet, const char **query) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_LOCATION_QUERY)) return 0; + + *query = (const char *)coap_pkt->location_query; + return coap_pkt->location_query_len; +} + +int +coap_set_header_location_query(void *packet, char *query) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + while (query[0]=='?') ++query; + + coap_pkt->location_query = (uint8_t *)query; + coap_pkt->location_query_len = strlen(query); + + SET_OPTION(coap_pkt, COAP_OPTION_LOCATION_QUERY); + return coap_pkt->location_query_len; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_observe(void *packet, uint32_t *observe) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_OBSERVE)) return 0; + + *observe = coap_pkt->observe; + return 1; +} + +int +coap_set_header_observe(void *packet, uint32_t observe) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->observe = 0x00FFFFFF & observe; + SET_OPTION(coap_pkt, COAP_OPTION_OBSERVE); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_block2(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_BLOCK2)) return 0; + + /* pointers may be NULL to get only specific block parameters */ + if (num!=NULL) *num = coap_pkt->block2_num; + if (more!=NULL) *more = coap_pkt->block2_more; + if (size!=NULL) *size = coap_pkt->block2_size; + if (offset!=NULL) *offset = coap_pkt->block2_offset; + + return 1; +} + +int +coap_set_header_block2(void *packet, uint32_t num, uint8_t more, uint16_t size) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (size<16) return 0; + if (size>2048) return 0; + if (num>0x0FFFFF) return 0; + + coap_pkt->block2_num = num; + coap_pkt->block2_more = more ? 1 : 0; + coap_pkt->block2_size = size; + + SET_OPTION(coap_pkt, COAP_OPTION_BLOCK2); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_block1(void *packet, uint32_t *num, uint8_t *more, uint16_t *size, uint32_t *offset) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_BLOCK1)) return 0; + + /* pointers may be NULL to get only specific block parameters */ + if (num!=NULL) *num = coap_pkt->block1_num; + if (more!=NULL) *more = coap_pkt->block1_more; + if (size!=NULL) *size = coap_pkt->block1_size; + if (offset!=NULL) *offset = coap_pkt->block1_offset; + + return 1; +} + +int +coap_set_header_block1(void *packet, uint32_t num, uint8_t more, uint16_t size) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (size<16) return 0; + if (size>2048) return 0; + if (num>0x0FFFFF) return 0; + + coap_pkt->block1_num = num; + coap_pkt->block1_more = more; + coap_pkt->block1_size = size; + + SET_OPTION(coap_pkt, COAP_OPTION_BLOCK1); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +int +coap_get_header_size(void *packet, uint32_t *size) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (!IS_OPTION(coap_pkt, COAP_OPTION_SIZE)) return 0; + + *size = coap_pkt->size; + return 1; +} + +int +coap_set_header_size(void *packet, uint32_t size) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->size = size; + SET_OPTION(coap_pkt, COAP_OPTION_SIZE); + return 1; +} +/*-----------------------------------------------------------------------------------*/ +/*- PAYLOAD -------------------------------------------------------------------------*/ +/*-----------------------------------------------------------------------------------*/ +int +coap_get_payload(void *packet, const uint8_t **payload) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + if (coap_pkt->payload) { + *payload = coap_pkt->payload; + return coap_pkt->payload_len; + } else { + *payload = NULL; + return 0; + } +} + +int +coap_set_payload(void *packet, const void *payload, size_t length) +{ + coap_packet_t *const coap_pkt = (coap_packet_t *) packet; + + coap_pkt->payload = (uint8_t *) payload; + coap_pkt->payload_len = (uint16_t)(length); + + return coap_pkt->payload_len; +} +/*-----------------------------------------------------------------------------------*/ -- 2.7.4