suit: move CoAP endpoints to the example

Those endpoints are very specific to the example and not
useful for general use.

Move them to the example's CoAP endpoints.

examples/suit_update/coap_handler.c

@@ -1,19 +1,23 @@
 /*
  * Copyright (C) 2019 Kaspar Schleiser <[email protected]>
+ *               2019 Freie Universität Berlin
+ *               2019 Inria
  *
  * This file is subject to the terms and conditions of the GNU Lesser
  * General Public License v2.1. See the file LICENSE in the top level
  * directory for more details.
  */
 
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-
+#include "log.h"
+#include "suit.h"
 #include "net/nanocoap.h"
 #include "suit/transport/coap.h"
 #include "kernel_defines.h"
 
+#ifdef MODULE_RIOTBOOT_SLOT
+#include "riotboot/slot.h"
+#endif
+
 static ssize_t _riot_board_handler(coap_pkt_t *pkt, uint8_t *buf, size_t len,
                                    coap_request_ctx_t *context)
 {
@@ -22,8 +26,71 @@ static ssize_t _riot_board_handler(coap_pkt_t *pkt, uint8_t *buf, size_t len,
             COAP_FORMAT_TEXT, (uint8_t*)RIOT_BOARD, strlen(RIOT_BOARD));
 }
 
+static ssize_t _version_handler(coap_pkt_t *pkt, uint8_t *buf, size_t len,
+                                coap_request_ctx_t *context)
+{
+    (void)context;
+    return coap_reply_simple(pkt, COAP_CODE_205, buf, len,
+                             COAP_FORMAT_TEXT, (uint8_t *)"NONE", 4);
+}
+
+static ssize_t _trigger_handler(coap_pkt_t *pkt, uint8_t *buf, size_t len,
+                                coap_request_ctx_t *context)
+{
+    (void)context;
+    unsigned code;
+    size_t payload_len = pkt->payload_len;
+    if (payload_len) {
+        if (payload_len >= CONFIG_SOCK_URLPATH_MAXLEN) {
+            code = COAP_CODE_REQUEST_ENTITY_TOO_LARGE;
+        }
+        else {
+            code = COAP_CODE_CREATED;
+            LOG_INFO("suit: received URL: \"%s\"\n", (char *)pkt->payload);
+            suit_worker_trigger((char *)pkt->payload, strlen((char *)pkt->payload));
+        }
+    }
+    else {
+        code = COAP_CODE_REQUEST_ENTITY_INCOMPLETE;
+    }
+
+    return coap_reply_simple(pkt, code, buf, len,
+                             COAP_FORMAT_NONE, NULL, 0);
+}
+
+#ifdef MODULE_RIOTBOOT_SLOT
+static ssize_t _slot_handler(coap_pkt_t *pkt, uint8_t *buf, size_t len,
+                             coap_request_ctx_t *context)
+{
+    /* context is passed either as NULL or 0x1 for /active or /inactive */
+    char c = '0';
+
+    if (coap_request_ctx_get_context(context)) {
+        c += riotboot_slot_other();
+    }
+    else {
+        c += riotboot_slot_current();
+    }
+
+    return coap_reply_simple(pkt, COAP_CODE_205, buf, len,
+                             COAP_FORMAT_TEXT, (uint8_t *)&c, 1);
+}
+#endif
+
+#ifdef MODULE_RIOTBOOT_SLOT
+NANOCOAP_RESOURCE(slot_active) {
+    .path = "/suit/slot/active", .methods = COAP_METHOD_GET, .handler = _slot_handler,
+};
+NANOCOAP_RESOURCE(slot_inactive) {
+   .path = "/suit/slot/inactive", .methods = COAP_METHOD_GET, .handler = _slot_handler, .context = (void *)0x1,
+};
+#endif
+NANOCOAP_RESOURCE(trigger) {
+    .path = "/suit/trigger", .methods = COAP_METHOD_PUT | COAP_METHOD_POST, .handler = _trigger_handler,
+};
+NANOCOAP_RESOURCE(version) {
+    .path = "/suit/version", .methods = COAP_METHOD_GET, .handler = _version_handler,
+};
 NANOCOAP_RESOURCE(board) {
     .path = "/riot/board", .methods = COAP_GET, .handler = _riot_board_handler,
 };
-
-NANOCOAP_RESOURCE(suit) SUIT_COAP_SUBTREE;

sys/include/suit/transport/coap.h

@@ -32,22 +32,6 @@
 extern "C" {
 #endif
 
-/**
- * @brief SUIT CoAP endpoint entry.
- *
- * In order to use, include this header, then add SUIT_COAP_SUBTREE to the nanocoap endpoint array.
- * Mind the alphanumerical sorting!
- *
- * See examples/suit_update for an example.
- */
-#define SUIT_COAP_SUBTREE \
-    { \
-        .path="/suit/", \
-        .methods=COAP_MATCH_SUBTREE | COAP_METHOD_GET | COAP_METHOD_POST | COAP_METHOD_PUT, \
-        .handler=coap_subtree_handler, \
-        .context=(void*)&coap_resource_subtree_suit \
-    }
-
 /*
  * Dear Reviewer,
  *
@@ -63,11 +47,6 @@ extern "C" {
  */
 #ifndef DOXYGEN
 
-/**
- * @brief   Reference to the coap resource subtree
- */
-extern const coap_resource_subtree_t coap_resource_subtree_suit;
-
 /**
  * @brief Coap block-wise-transfer size used for SUIT
  */