RIOT/sys/net/application_layer/nanocoap/Makefile.include

ifneq (,$(filter nanocoap_dtls,$(USEMODULE)))
  CONFIG_NANOCOAP_BLOCKSIZE_DEFAULT := $(or $(CONFIG_NANOCOAP_BLOCKSIZE_DEFAULT),2)
  NANOCOAP_BLOCK_FRAME := (1 << ($(CONFIG_NANOCOAP_BLOCKSIZE_DEFAULT) + 4)) + 36
  NANOCOAP_BLOCK_FRAME := $(shell echo $$((${NANOCOAP_BLOCK_FRAME})))
  # the initial DTLS handshake may exceed the block size
  DTLS_MAX_BUF ?= $(shell echo $$((${NANOCOAP_BLOCK_FRAME} > 200 ? ${NANOCOAP_BLOCK_FRAME} : 200 )))
endif
sys/net/nanocoap: configure DTLS buffer 2023-08-21 13:43:33 +02:00			`ifneq (,$(filter nanocoap_dtls,$(USEMODULE)))`
			`CONFIG_NANOCOAP_BLOCKSIZE_DEFAULT := $(or $(CONFIG_NANOCOAP_BLOCKSIZE_DEFAULT),2)`
sys/net/nanocoap: ensure DTLS buffer is at least 200 bytes 2024-02-26 20:14:47 +01:00			`NANOCOAP_BLOCK_FRAME := (1 << ($(CONFIG_NANOCOAP_BLOCKSIZE_DEFAULT) + 4)) + 36`
			`NANOCOAP_BLOCK_FRAME := $(shell echo $$((${NANOCOAP_BLOCK_FRAME})))`
			`# the initial DTLS handshake may exceed the block size`
			`DTLS_MAX_BUF ?= $(shell echo $$((${NANOCOAP_BLOCK_FRAME} > 200 ? ${NANOCOAP_BLOCK_FRAME} : 200 )))`
sys/net/nanocoap: configure DTLS buffer 2023-08-21 13:43:33 +02:00			`endif`