Merge branch 'master' into ds18b20
This commit is contained in:
Grzegorz Hetman
commit
b5f1c893bf
15 changed files with 670 additions and 42 deletions
12
common.mk
12
common.mk
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@ -48,6 +48,13 @@ ESPTOOL ?= esptool.py
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||||||
ESPPORT ?= /dev/ttyUSB0
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ESPPORT ?= /dev/ttyUSB0
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ESPBAUD ?= 115200
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ESPBAUD ?= 115200
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# set this to 0 if you don't need floating point support in printf/scanf
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# this will save approx 14.5KB flash space and 448 bytes of statically allocated
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# data RAM
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#
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# NB: Setting the value to 0 requires a recent esptool.py (Feb 2016 / commit ebf02c9)
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PRINTF_SCANF_FLOAT_SUPPORT ?= 1
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# Set OTA to 1 to build an image that supports rBoot OTA bootloader
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# Set OTA to 1 to build an image that supports rBoot OTA bootloader
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#
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#
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# Currently only works with 16mbit or more flash sizes, with 8mbit
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# Currently only works with 16mbit or more flash sizes, with 8mbit
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@ -109,7 +116,7 @@ CXXFLAGS ?= $(C_CXX_FLAGS) -fno-exceptions -fno-rtti $(EXTRA_CXXFLAGS)
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# these aren't technically preprocesor args, but used by all 3 of C, C++, assembler
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# these aren't technically preprocesor args, but used by all 3 of C, C++, assembler
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CPPFLAGS += -mlongcalls -mtext-section-literals
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CPPFLAGS += -mlongcalls -mtext-section-literals
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LDFLAGS = -nostdlib -Wl,--no-check-sections -L$(BUILD_DIR)sdklib -L$(ROOT)lib -u $(ENTRY_SYMBOL) -Wl,-static -Wl,-Map=$(BUILD_DIR)$(PROGRAM).map $(EXTRA_LDFLAGS)
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LDFLAGS = -nostdlib -Wl,--no-check-sections -L$(BUILD_DIR)sdklib -L$(ROOT)lib -u $(ENTRY_SYMBOL) -Wl,-static -Wl,-Map=$(BUILD_DIR)$(PROGRAM).map $(EXTRA_LDFLAGS)
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ifeq ($(SPLIT_SECTIONS),1)
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ifeq ($(SPLIT_SECTIONS),1)
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C_CXX_FLAGS += -ffunction-sections -fdata-sections
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C_CXX_FLAGS += -ffunction-sections -fdata-sections
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@ -202,6 +209,9 @@ INC_DIRS = $(PROGRAM_DIR) $(PROGRAM_DIR)include $(ROOT)include
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ifeq ($(OWN_LIBC),1)
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ifeq ($(OWN_LIBC),1)
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INC_DIRS += $(ROOT)libc/xtensa-lx106-elf/include
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INC_DIRS += $(ROOT)libc/xtensa-lx106-elf/include
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LDFLAGS += -L$(ROOT)libc/xtensa-lx106-elf/lib
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LDFLAGS += -L$(ROOT)libc/xtensa-lx106-elf/lib
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ifeq ($(PRINTF_SCANF_FLOAT_SUPPORT),1)
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LDFLAGS += -u _printf_float -u _scanf_float
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endif
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endif
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endif
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ifeq ("$(V)","1")
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ifeq ("$(V)","1")
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@ -250,7 +250,7 @@ void IRAM sdk_user_start(void) {
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// .text+0x3a8
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// .text+0x3a8
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void IRAM vApplicationStackOverflowHook(xTaskHandle task, char *task_name) {
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void IRAM vApplicationStackOverflowHook(xTaskHandle task, char *task_name) {
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printf("\"%s\"(stack_size = %lu) overflow the heap_size.\n", task_name, uxTaskGetStackHighWaterMark(task));
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printf("Task stack overflow (high water mark=%lu name=\"%s\")\n", uxTaskGetStackHighWaterMark(task), task_name);
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}
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}
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// .text+0x3d8
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// .text+0x3d8
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@ -8,32 +8,34 @@
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void gpio_enable(const uint8_t gpio_num, const gpio_direction_t direction)
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void gpio_enable(const uint8_t gpio_num, const gpio_direction_t direction)
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{
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{
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uint32_t iomux_flags;
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switch (direction) {
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switch(direction) {
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case GPIO_INPUT:
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case GPIO_INPUT:
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iomux_flags = 0;
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GPIO.ENABLE_OUT_CLEAR = BIT(gpio_num);
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iomux_set_gpio_function(gpio_num, false);
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break;
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break;
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case GPIO_OUTPUT:
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case GPIO_OUTPUT:
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iomux_flags = IOMUX_PIN_OUTPUT_ENABLE;
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GPIO.CONF[gpio_num] &= ~GPIO_CONF_OPEN_DRAIN;
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GPIO.ENABLE_OUT_SET = BIT(gpio_num);
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iomux_set_gpio_function(gpio_num, true);
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break;
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break;
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case GPIO_OUT_OPEN_DRAIN:
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case GPIO_OUT_OPEN_DRAIN:
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iomux_flags = IOMUX_PIN_OUTPUT_ENABLE;
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break;
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case GPIO_INPUT_PULLUP:
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iomux_flags = IOMUX_PIN_PULLUP;
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break;
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default:
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return; /* Invalid direction flag */
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}
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iomux_set_gpio_function(gpio_num, iomux_flags);
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if(direction == GPIO_OUT_OPEN_DRAIN)
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GPIO.CONF[gpio_num] |= GPIO_CONF_OPEN_DRAIN;
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GPIO.CONF[gpio_num] |= GPIO_CONF_OPEN_DRAIN;
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else
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GPIO.CONF[gpio_num] &= ~GPIO_CONF_OPEN_DRAIN;
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if (iomux_flags & IOMUX_PIN_OUTPUT_ENABLE)
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GPIO.ENABLE_OUT_SET = BIT(gpio_num);
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GPIO.ENABLE_OUT_SET = BIT(gpio_num);
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else
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iomux_set_gpio_function(gpio_num, true);
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GPIO.ENABLE_OUT_CLEAR = BIT(gpio_num);
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break;
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}
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}
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void gpio_set_pullup(uint8_t gpio_num, bool enabled, bool enabled_during_sleep)
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{
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uint32_t flags = 0;
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if (enabled) {
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flags |= IOMUX_PIN_PULLUP;
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}
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if (enabled_during_sleep) {
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flags |= IOMUX_PIN_PULLUP_SLEEP;
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}
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iomux_set_pullup_flags(gpio_to_iomux(gpio_num), flags);
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}
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}
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@ -17,14 +17,24 @@ typedef enum {
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GPIO_INPUT,
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GPIO_INPUT,
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GPIO_OUTPUT, /* "Standard" push-pull output */
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GPIO_OUTPUT, /* "Standard" push-pull output */
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GPIO_OUT_OPEN_DRAIN, /* Open drain output */
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GPIO_OUT_OPEN_DRAIN, /* Open drain output */
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GPIO_INPUT_PULLUP,
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} gpio_direction_t;
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} gpio_direction_t;
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/* Enable GPIO on the specified pin, and set it to input/output/ with
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/* Enable GPIO on the specified pin, and set it to input or output mode
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* pullup as needed
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*/
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*/
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void gpio_enable(const uint8_t gpio_num, const gpio_direction_t direction);
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void gpio_enable(const uint8_t gpio_num, const gpio_direction_t direction);
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/* Enable/disable internal pullup resistor for a particular GPIO
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*
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* Note: According to Espressif, pullup resistor values are between 30K and
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* 100K ohms (see http://bbs.espressif.com/viewtopic.php?t=1079#p4097)
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* However, measured values suggest that the actual value is likely to be close
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* to 47K in reality.
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*
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* NOTE: The enabled_during_sleep setting is currently untested (please send
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* feedback if you give it a try)
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*/
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void gpio_set_pullup(uint8_t gpio_num, bool enabled, bool enabled_during_sleep);
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/* Disable GPIO on the specified pin, and set it Hi-Z.
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/* Disable GPIO on the specified pin, and set it Hi-Z.
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*
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*
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* If later muxing this pin to a different function, make sure to set
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* If later muxing this pin to a different function, make sure to set
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@ -36,13 +46,37 @@ static inline void gpio_disable(const uint8_t gpio_num)
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*gpio_iomux_reg(gpio_num) &= ~IOMUX_PIN_OUTPUT_ENABLE;
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*gpio_iomux_reg(gpio_num) &= ~IOMUX_PIN_OUTPUT_ENABLE;
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}
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}
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/* Set whether the specified pin continues to drive its output when the ESP8266
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* goes into sleep mode. Note that this setting is reset to off whenever
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* gpio_enable is called, so this must be called after calling that function.
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*
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* NOTE: This functionality is currently untested (please send feedback if you
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* give it a try)
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*/
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static inline void gpio_set_output_on_sleep(const uint8_t gpio_num, bool enabled)
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{
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if (enabled) {
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IOMUX.PIN[gpio_to_iomux(gpio_num)] |= IOMUX_PIN_OUTPUT_ENABLE_SLEEP;
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} else {
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IOMUX.PIN[gpio_to_iomux(gpio_num)] &= ~IOMUX_PIN_OUTPUT_ENABLE_SLEEP;
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}
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}
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/* Set output of a pin high or low.
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/* Set output of a pin high or low.
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*
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*
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* Only works if pin has been set to GPIO_OUTPUT via gpio_enable()
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* Only works if pin has been set to GPIO_OUTPUT or GPIO_OUT_OPEN_DRAIN via
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* gpio_enable()
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*
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* If the mode is GPIO_OUT_OPEN_DRAIN, setting it low (false) will pull the pin
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* down to ground, but setting it high (true) will allow it to float. Note
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* that even in GPIO_OUT_OPEN_DRAIN mode, the input gates are still physically
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* connected to the pin, and can be damaged if the voltage is not in either the
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* "low" or "high" range. Make sure there is some sort of pull-up resistor on
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* the line to avoid floating logic lines!
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*/
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*/
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static inline void gpio_write(const uint8_t gpio_num, const bool set)
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static inline void gpio_write(const uint8_t gpio_num, const bool set)
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{
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{
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if(set)
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if (set)
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GPIO.OUT_SET = BIT(gpio_num);
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GPIO.OUT_SET = BIT(gpio_num);
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else
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else
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GPIO.OUT_CLEAR = BIT(gpio_num);
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GPIO.OUT_CLEAR = BIT(gpio_num);
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@ -50,7 +84,10 @@ static inline void gpio_write(const uint8_t gpio_num, const bool set)
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/* Toggle output of a pin
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/* Toggle output of a pin
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*
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*
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* Only works if pin has been set to GPIO_OUTPUT via gpio_enable()
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* Only works if pin has been set to GPIO_OUTPUT or GPIO_OUT_OPEN_DRAIN via
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* gpio_enable()
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*
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* See notes in gpio_write() about GPIO_OUT_OPEN_DRAIN mode.
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*/
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*/
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static inline void gpio_toggle(const uint8_t gpio_num)
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static inline void gpio_toggle(const uint8_t gpio_num)
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{
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{
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@ -68,8 +105,12 @@ static inline void gpio_toggle(const uint8_t gpio_num)
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/* Read input value of a GPIO pin.
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/* Read input value of a GPIO pin.
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*
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*
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* If pin is set as an input, this reads the value on the pin.
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* If pin is set GPIO_INPUT, this reads the level on the pin.
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* If pin is set as an output, this reads the last value written to the pin.
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* If pin is set GPIO_OUTPUT, this reads the level at which the pin is
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* currently being driven (i.e. the last value written).
|
||||||
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* If pin is set GPIO_OUT_OPEN_DRAIN, when the pin is written low, this will
|
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* return low (false), when the pin is written high, this will behave like
|
||||||
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* GPIO_INPUT.
|
||||||
*/
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*/
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static inline bool gpio_read(const uint8_t gpio_num)
|
static inline bool gpio_read(const uint8_t gpio_num)
|
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{
|
{
|
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|
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@ -80,7 +121,8 @@ extern void gpio_interrupt_handler(void);
|
||||||
|
|
||||||
/* Set the interrupt type for a given pin
|
/* Set the interrupt type for a given pin
|
||||||
*
|
*
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* If int_type is not GPIO_INTTYPE_NONE, the gpio_interrupt_handler will be attached and unmasked.
|
* If int_type is not GPIO_INTTYPE_NONE, the gpio_interrupt_handler will be
|
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* attached and unmasked.
|
||||||
*/
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*/
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static inline void gpio_set_interrupt(const uint8_t gpio_num, const gpio_inttype_t int_type)
|
static inline void gpio_set_interrupt(const uint8_t gpio_num, const gpio_inttype_t int_type)
|
||||||
{
|
{
|
||||||
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|
|
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@ -43,25 +43,41 @@ inline static esp_reg_t gpio_iomux_reg(const uint8_t gpio_number)
|
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return &(IOMUX.PIN[gpio_to_iomux(gpio_number)]);
|
return &(IOMUX.PIN[gpio_to_iomux(gpio_number)]);
|
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}
|
}
|
||||||
|
|
||||||
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inline static void iomux_set_function(uint8_t iomux_num, uint32_t func)
|
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|
{
|
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|
uint32_t prev = IOMUX.PIN[iomux_num] & ~IOMUX_PIN_FUNC_MASK;
|
||||||
|
IOMUX.PIN[iomux_num] = IOMUX_FUNC(func) | prev;
|
||||||
|
}
|
||||||
|
|
||||||
|
inline static void iomux_set_direction_flags(uint8_t iomux_num, uint32_t dir_flags)
|
||||||
|
{
|
||||||
|
uint32_t mask = IOMUX_PIN_OUTPUT_ENABLE | IOMUX_PIN_OUTPUT_ENABLE_SLEEP;
|
||||||
|
uint32_t prev = IOMUX.PIN[iomux_num] & ~mask;
|
||||||
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IOMUX.PIN[iomux_num] = dir_flags | prev;
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||||||
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}
|
||||||
|
|
||||||
|
inline static void iomux_set_pullup_flags(uint8_t iomux_num, uint32_t pullup_flags)
|
||||||
|
{
|
||||||
|
uint32_t mask = IOMUX_PIN_PULLUP | IOMUX_PIN_PULLDOWN | IOMUX_PIN_PULLUP_SLEEP | IOMUX_PIN_PULLDOWN_SLEEP;
|
||||||
|
uint32_t prev = IOMUX.PIN[iomux_num] & ~mask;
|
||||||
|
IOMUX.PIN[iomux_num] = pullup_flags | prev;
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Set a pin to the GPIO function.
|
* Set a pin to the GPIO function.
|
||||||
*
|
*
|
||||||
* This allows you to set pins to GPIO without knowing in advance the
|
* This allows you to set pins to GPIO without knowing in advance the
|
||||||
* exact register masks to use.
|
* exact register masks to use.
|
||||||
*
|
*
|
||||||
* flags can be any of IOMUX_PIN_OUTPUT_ENABLE, IOMUX_PIN_PULLUP, IOMUX_PIN_PULLDOWN, etc. Any other flags will be cleared.
|
* Sets the function and direction, but leaves the pullup configuration the
|
||||||
*
|
* same as before.
|
||||||
* Equivalent to a direct register operation if gpio_number is known at compile time.
|
|
||||||
* ie the following are equivalent:
|
|
||||||
*
|
|
||||||
* iomux_set_gpio_function(12, IOMUX_PIN_OUTPUT_ENABLE);
|
|
||||||
* IOMUX_GPIO12 = IOMUX_GPIO12_FUNC_GPIO | IOMUX_PIN_OUTPUT_ENABLE;
|
|
||||||
*/
|
*/
|
||||||
inline static void iomux_set_gpio_function(const uint8_t gpio_number, const uint32_t flags)
|
inline static void iomux_set_gpio_function(uint8_t gpio_number, bool output_enable)
|
||||||
{
|
{
|
||||||
const uint8_t reg_idx = gpio_to_iomux(gpio_number);
|
const uint8_t iomux_num = gpio_to_iomux(gpio_number);
|
||||||
const uint32_t func = (reg_idx > 11 ? IOMUX_FUNC(0) : IOMUX_FUNC(3)) | flags;
|
const uint32_t func = iomux_num > 11 ? 0 : 3;
|
||||||
IOMUX.PIN[reg_idx] = func | flags;
|
iomux_set_function(iomux_num, func);
|
||||||
|
iomux_set_direction_flags(iomux_num, output_enable ? IOMUX_PIN_OUTPUT_ENABLE : 0);
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
|
|
|
||||||
|
|
@ -2,6 +2,7 @@
|
||||||
#define _ESP_TYPES_H
|
#define _ESP_TYPES_H
|
||||||
|
|
||||||
#include <stdint.h>
|
#include <stdint.h>
|
||||||
|
#include <stdbool.h>
|
||||||
|
|
||||||
typedef volatile uint32_t *esp_reg_t;
|
typedef volatile uint32_t *esp_reg_t;
|
||||||
|
|
||||||
|
|
|
||||||
5
examples/access_point/Makefile
Normal file
5
examples/access_point/Makefile
Normal file
|
|
@ -0,0 +1,5 @@
|
||||||
|
# Makefile for access_point example
|
||||||
|
PROGRAM=access_point
|
||||||
|
EXTRA_COMPONENTS=extras/dhcpserver
|
||||||
|
|
||||||
|
include ../../common.mk
|
||||||
97
examples/access_point/access_point.c
Normal file
97
examples/access_point/access_point.c
Normal file
|
|
@ -0,0 +1,97 @@
|
||||||
|
/* Very basic example showing usage of access point mode and the DHCP server.
|
||||||
|
|
||||||
|
The ESP in the example runs a telnet server on 172.16.0.1 (port 23) that
|
||||||
|
outputs some status information if you connect to it, then closes
|
||||||
|
the connection.
|
||||||
|
|
||||||
|
This example code is in the public domain.
|
||||||
|
*/
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include <espressif/esp_common.h>
|
||||||
|
#include <esp/uart.h>
|
||||||
|
#include <FreeRTOS.h>
|
||||||
|
#include <task.h>
|
||||||
|
#include <queue.h>
|
||||||
|
#include <dhcpserver.h>
|
||||||
|
|
||||||
|
#include <lwip/api.h>
|
||||||
|
|
||||||
|
#define AP_SSID "esp-open-rtos AP"
|
||||||
|
#define AP_PSK "esp-open-rtos"
|
||||||
|
|
||||||
|
#define TELNET_PORT 23
|
||||||
|
|
||||||
|
static void telnetTask(void *pvParameters);
|
||||||
|
|
||||||
|
void user_init(void)
|
||||||
|
{
|
||||||
|
uart_set_baud(0, 115200);
|
||||||
|
printf("SDK version:%s\n", sdk_system_get_sdk_version());
|
||||||
|
|
||||||
|
sdk_wifi_set_opmode(SOFTAP_MODE);
|
||||||
|
struct ip_info ap_ip;
|
||||||
|
IP4_ADDR(&ap_ip.ip, 172, 16, 0, 1);
|
||||||
|
IP4_ADDR(&ap_ip.gw, 0, 0, 0, 0);
|
||||||
|
IP4_ADDR(&ap_ip.netmask, 255, 255, 0, 0);
|
||||||
|
sdk_wifi_set_ip_info(1, &ap_ip);
|
||||||
|
|
||||||
|
struct sdk_softap_config ap_config = {
|
||||||
|
.ssid = AP_SSID,
|
||||||
|
.ssid_hidden = 0,
|
||||||
|
.channel = 3,
|
||||||
|
.ssid_len = strlen(AP_SSID),
|
||||||
|
.authmode = AUTH_WPA_WPA2_PSK,
|
||||||
|
.password = AP_PSK,
|
||||||
|
.max_connection = 3,
|
||||||
|
.beacon_interval = 100,
|
||||||
|
};
|
||||||
|
sdk_wifi_softap_set_config(&ap_config);
|
||||||
|
|
||||||
|
ip_addr_t first_client_ip;
|
||||||
|
IP4_ADDR(&first_client_ip, 172, 16, 0, 2);
|
||||||
|
dhcpserver_start(&first_client_ip, 4);
|
||||||
|
|
||||||
|
xTaskCreate(telnetTask, (signed char *)"telnetTask", 512, NULL, 2, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Telnet task listens on port 23, returns some status information and then closes
|
||||||
|
the connection if you connect to it.
|
||||||
|
*/
|
||||||
|
static void telnetTask(void *pvParameters)
|
||||||
|
{
|
||||||
|
struct netconn *nc = netconn_new (NETCONN_TCP);
|
||||||
|
if(!nc) {
|
||||||
|
printf("Status monitor: Failed to allocate socket.\r\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
netconn_bind(nc, IP_ADDR_ANY, TELNET_PORT);
|
||||||
|
netconn_listen(nc);
|
||||||
|
|
||||||
|
while(1) {
|
||||||
|
struct netconn *client = NULL;
|
||||||
|
err_t err = netconn_accept(nc, &client);
|
||||||
|
|
||||||
|
if ( err != ERR_OK ) {
|
||||||
|
if(client)
|
||||||
|
netconn_delete(client);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
ip_addr_t client_addr;
|
||||||
|
uint16_t port_ignore;
|
||||||
|
netconn_peer(client, &client_addr, &port_ignore);
|
||||||
|
|
||||||
|
char buf[80];
|
||||||
|
snprintf(buf, sizeof(buf), "Uptime %d seconds\r\n",
|
||||||
|
xTaskGetTickCount()*portTICK_RATE_MS/1000);
|
||||||
|
netconn_write(client, buf, strlen(buf), NETCONN_COPY);
|
||||||
|
snprintf(buf, sizeof(buf), "Free heap %d bytes\r\n", (int)xPortGetFreeHeapSize());
|
||||||
|
netconn_write(client, buf, strlen(buf), NETCONN_COPY);
|
||||||
|
snprintf(buf, sizeof(buf), "Your address is %d.%d.%d.%d\r\n\r\n",
|
||||||
|
ip4_addr1(&client_addr), ip4_addr2(&client_addr),
|
||||||
|
ip4_addr3(&client_addr), ip4_addr4(&client_addr));
|
||||||
|
netconn_write(client, buf, strlen(buf), NETCONN_COPY);
|
||||||
|
netconn_delete(client);
|
||||||
|
}
|
||||||
|
}
|
||||||
9
extras/dhcpserver/component.mk
Normal file
9
extras/dhcpserver/component.mk
Normal file
|
|
@ -0,0 +1,9 @@
|
||||||
|
# Component makefile for extras/dhcpserver
|
||||||
|
|
||||||
|
INC_DIRS += $(dhcpserver_ROOT)include
|
||||||
|
|
||||||
|
# args for passing into compile rule generation
|
||||||
|
dhcpserver_INC_DIR = $(dhcpserver_ROOT)
|
||||||
|
dhcpserver_SRC_DIR = $(dhcpserver_ROOT)
|
||||||
|
|
||||||
|
$(eval $(call component_compile_rules,dhcpserver))
|
||||||
370
extras/dhcpserver/dhcpserver.c
Normal file
370
extras/dhcpserver/dhcpserver.c
Normal file
|
|
@ -0,0 +1,370 @@
|
||||||
|
/* Very basic LWIP & FreeRTOS-based DHCP server
|
||||||
|
*
|
||||||
|
* Based on RFC2131 http://www.ietf.org/rfc/rfc2131.txt
|
||||||
|
* ... although not fully RFC compliant yet.
|
||||||
|
*
|
||||||
|
* TODO
|
||||||
|
* * Allow binding on a single interface only (for mixed AP/client mode), lwip seems to make it hard to
|
||||||
|
* listen for or send broadcasts on a specific interface only.
|
||||||
|
*
|
||||||
|
* * Probably allocates more memory than it should, it should be possible to reuse netbufs in most cases.
|
||||||
|
*
|
||||||
|
* Part of esp-open-rtos
|
||||||
|
* Copyright (C) 2015 Superhouse Automation Pty Ltd
|
||||||
|
* BSD Licensed as described in the file LICENSE
|
||||||
|
*/
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include <FreeRTOS.h>
|
||||||
|
#include <task.h>
|
||||||
|
#include <lwip/netif.h>
|
||||||
|
#include <lwip/api.h>
|
||||||
|
|
||||||
|
/* Grow the size of the lwip dhcp_msg struct's options field, as LWIP
|
||||||
|
defaults to a 68 octet options field for its DHCP client, and most
|
||||||
|
full-sized clients send us more than this. */
|
||||||
|
#define DHCP_OPTIONS_LEN 312
|
||||||
|
|
||||||
|
#include <lwip/dhcp.h>
|
||||||
|
|
||||||
|
_Static_assert(sizeof(struct dhcp_msg) == offsetof(struct dhcp_msg, options) + 312, "dhcp_msg_t should have extended options size");
|
||||||
|
|
||||||
|
#include <lwip/netbuf.h>
|
||||||
|
|
||||||
|
#include "dhcpserver.h"
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
uint8_t hwaddr[NETIF_MAX_HWADDR_LEN];
|
||||||
|
uint32_t expires;
|
||||||
|
} dhcp_lease_t;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
struct netconn *nc;
|
||||||
|
uint8_t max_leases;
|
||||||
|
ip_addr_t first_client_addr;
|
||||||
|
struct netif *server_if;
|
||||||
|
dhcp_lease_t *leases; /* length max_leases */
|
||||||
|
} server_state_t;
|
||||||
|
|
||||||
|
/* Only one DHCP server task can run at once, so we have global state
|
||||||
|
for it.
|
||||||
|
*/
|
||||||
|
static xTaskHandle dhcpserver_task_handle;
|
||||||
|
static server_state_t *state;
|
||||||
|
|
||||||
|
/* Handlers for various kinds of incoming DHCP messages */
|
||||||
|
static void handle_dhcp_discover(struct dhcp_msg *received);
|
||||||
|
static void handle_dhcp_request(struct dhcp_msg *dhcpmsg);
|
||||||
|
static void handle_dhcp_release(struct dhcp_msg *dhcpmsg);
|
||||||
|
|
||||||
|
static void send_dhcp_nak(struct dhcp_msg *dhcpmsg);
|
||||||
|
|
||||||
|
static void dhcpserver_task(void *pxParameter);
|
||||||
|
|
||||||
|
/* Utility functions */
|
||||||
|
static uint8_t *find_dhcp_option(struct dhcp_msg *msg, uint8_t option_num, uint8_t min_length, uint8_t *length);
|
||||||
|
static uint8_t *add_dhcp_option_byte(uint8_t *opt, uint8_t type, uint8_t value);
|
||||||
|
static uint8_t *add_dhcp_option_bytes(uint8_t *opt, uint8_t type, void *value, uint8_t len);
|
||||||
|
static dhcp_lease_t *find_lease_slot(uint8_t *hwaddr);
|
||||||
|
|
||||||
|
/* Copy IP address as dotted decimal to 'dest', must be at least 16 bytes long */
|
||||||
|
inline static void sprintf_ipaddr(const ip_addr_t *addr, char *dest)
|
||||||
|
{
|
||||||
|
if(addr == NULL)
|
||||||
|
sprintf(dest, "NULL");
|
||||||
|
else
|
||||||
|
sprintf(dest, "%d.%d.%d.%d", ip4_addr1(addr),
|
||||||
|
ip4_addr2(addr), ip4_addr3(addr), ip4_addr4(addr));
|
||||||
|
}
|
||||||
|
|
||||||
|
void dhcpserver_start(const ip_addr_t *first_client_addr, uint8_t max_leases)
|
||||||
|
{
|
||||||
|
/* Stop any existing running dhcpserver */
|
||||||
|
if(dhcpserver_task_handle)
|
||||||
|
dhcpserver_stop();
|
||||||
|
|
||||||
|
state = malloc(sizeof(server_state_t));
|
||||||
|
state->max_leases = max_leases;
|
||||||
|
state->leases = calloc(max_leases, sizeof(dhcp_lease_t));
|
||||||
|
// state->server_if is assigned once the task is running - see comment in dhcpserver_task()
|
||||||
|
ip_addr_copy(state->first_client_addr, *first_client_addr);
|
||||||
|
|
||||||
|
xTaskCreate(dhcpserver_task, (signed char *)"DHCPServer", 768, NULL, 8, &dhcpserver_task_handle);
|
||||||
|
}
|
||||||
|
|
||||||
|
void dhcpserver_stop(void)
|
||||||
|
{
|
||||||
|
if(dhcpserver_task_handle) {
|
||||||
|
vTaskDelete(dhcpserver_task_handle);
|
||||||
|
free(state);
|
||||||
|
dhcpserver_task_handle = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void dhcpserver_task(void *pxParameter)
|
||||||
|
{
|
||||||
|
/* netif_list isn't assigned until after user_init completes, which is why we do it inside the task */
|
||||||
|
state->server_if = netif_list; /* TODO: Make this configurable */
|
||||||
|
|
||||||
|
state->nc = netconn_new (NETCONN_UDP);
|
||||||
|
if(!state->nc) {
|
||||||
|
printf("OTA TFTP: Failed to allocate socket.\r\n");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
netconn_bind(state->nc, IP_ADDR_ANY, DHCP_SERVER_PORT);
|
||||||
|
|
||||||
|
while(1)
|
||||||
|
{
|
||||||
|
struct netbuf *netbuf;
|
||||||
|
struct dhcp_msg received = { 0 };
|
||||||
|
|
||||||
|
/* Receive a DHCP packet */
|
||||||
|
err_t err = netconn_recv(state->nc, &netbuf);
|
||||||
|
if(err != ERR_OK) {
|
||||||
|
printf("DHCP Server Error: Failed to receive DHCP packet. err=%d\r\n", err);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* expire any leases that have passed */
|
||||||
|
uint32_t now = xTaskGetTickCount();
|
||||||
|
for(int i = 0; i < state->max_leases; i++) {
|
||||||
|
uint32_t expires = state->leases[i].expires;
|
||||||
|
if(expires && expires < now)
|
||||||
|
state->leases[i].expires = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
ip_addr_t received_ip;
|
||||||
|
u16_t port;
|
||||||
|
netconn_addr(state->nc, &received_ip, &port);
|
||||||
|
|
||||||
|
if(netbuf_len(netbuf) < offsetof(struct dhcp_msg, options)) {
|
||||||
|
/* too short to be a valid DHCP client message */
|
||||||
|
netbuf_delete(netbuf);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
if(netbuf_len(netbuf) >= sizeof(struct dhcp_msg)) {
|
||||||
|
printf("DHCP Server Warning: Client sent more options than we know how to parse. len=%d\r\n", netbuf_len(netbuf));
|
||||||
|
}
|
||||||
|
|
||||||
|
netbuf_copy(netbuf, &received, sizeof(struct dhcp_msg));
|
||||||
|
netbuf_delete(netbuf);
|
||||||
|
|
||||||
|
uint8_t *message_type = find_dhcp_option(&received, DHCP_OPTION_MESSAGE_TYPE,
|
||||||
|
DHCP_OPTION_MESSAGE_TYPE_LEN, NULL);
|
||||||
|
if(!message_type) {
|
||||||
|
printf("DHCP Server Error: No message type field found");
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
printf("State dump. Message type %d\n", *message_type);
|
||||||
|
for(int i = 0; i < state->max_leases; i++) {
|
||||||
|
dhcp_lease_t *lease = &state->leases[i];
|
||||||
|
printf("lease slot %d expiry %d hwaddr %02x:%02x:%02x:%02x:%02x:%02x\r\n", i, lease->expires, lease->hwaddr[0],
|
||||||
|
lease->hwaddr[1], lease->hwaddr[2], lease->hwaddr[3], lease->hwaddr[4],
|
||||||
|
lease->hwaddr[5]);
|
||||||
|
}
|
||||||
|
|
||||||
|
switch(*message_type) {
|
||||||
|
case DHCP_DISCOVER:
|
||||||
|
handle_dhcp_discover(&received);
|
||||||
|
break;
|
||||||
|
case DHCP_REQUEST:
|
||||||
|
handle_dhcp_request(&received);
|
||||||
|
break;
|
||||||
|
case DHCP_RELEASE:
|
||||||
|
handle_dhcp_release(&received);
|
||||||
|
default:
|
||||||
|
printf("DHCP Server Error: Unsupported message type %d\r\n", *message_type);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void handle_dhcp_discover(struct dhcp_msg *dhcpmsg)
|
||||||
|
{
|
||||||
|
if(dhcpmsg->htype != DHCP_HTYPE_ETH)
|
||||||
|
return;
|
||||||
|
if(dhcpmsg->hlen > NETIF_MAX_HWADDR_LEN)
|
||||||
|
return;
|
||||||
|
|
||||||
|
dhcp_lease_t *freelease = find_lease_slot(dhcpmsg->chaddr);
|
||||||
|
if(!freelease) {
|
||||||
|
printf("DHCP Server: All leases taken.\r\n");
|
||||||
|
return; /* Nothing available, so do nothing */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Reuse the DISCOVER buffer for the OFFER response */
|
||||||
|
dhcpmsg->op = DHCP_BOOTREPLY;
|
||||||
|
bzero(dhcpmsg->options, DHCP_OPTIONS_LEN);
|
||||||
|
|
||||||
|
ip_addr_copy(dhcpmsg->yiaddr, state->first_client_addr);
|
||||||
|
ip4_addr4(&(dhcpmsg->yiaddr)) += (freelease - state->leases);
|
||||||
|
|
||||||
|
uint8_t *opt = (uint8_t *)&dhcpmsg->options;
|
||||||
|
opt = add_dhcp_option_byte(opt, DHCP_OPTION_MESSAGE_TYPE, DHCP_OFFER);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_SERVER_ID, &state->server_if->ip_addr, 4);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_SUBNET_MASK, &state->server_if->netmask, 4);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_END, NULL, 0);
|
||||||
|
|
||||||
|
struct netbuf *netbuf = netbuf_new();
|
||||||
|
netbuf_alloc(netbuf, sizeof(struct dhcp_msg));
|
||||||
|
netbuf_take(netbuf, dhcpmsg, sizeof(struct dhcp_msg));
|
||||||
|
netconn_sendto(state->nc, netbuf, IP_ADDR_BROADCAST, 68);
|
||||||
|
netbuf_delete(netbuf);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void handle_dhcp_request(struct dhcp_msg *dhcpmsg)
|
||||||
|
{
|
||||||
|
static char ipbuf[16];
|
||||||
|
if(dhcpmsg->htype != DHCP_HTYPE_ETH)
|
||||||
|
return;
|
||||||
|
if(dhcpmsg->hlen > NETIF_MAX_HWADDR_LEN)
|
||||||
|
return;
|
||||||
|
|
||||||
|
ip_addr_t requested_ip;
|
||||||
|
uint8_t *requested_ip_opt = find_dhcp_option(dhcpmsg, DHCP_OPTION_REQUESTED_IP, 4, NULL);
|
||||||
|
if(requested_ip_opt) {
|
||||||
|
memcpy(&requested_ip.addr, requested_ip_opt, 4);
|
||||||
|
} else if(ip_addr_cmp(&requested_ip, IP_ADDR_ANY)) {
|
||||||
|
ip_addr_copy(requested_ip, dhcpmsg->ciaddr);
|
||||||
|
} else {
|
||||||
|
printf("DHCP Server Error: No requested IP\r\n");
|
||||||
|
send_dhcp_nak(dhcpmsg);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Test the first 4 octets match */
|
||||||
|
if(ip4_addr1(&requested_ip) != ip4_addr1(&state->first_client_addr)
|
||||||
|
|| ip4_addr2(&requested_ip) != ip4_addr2(&state->first_client_addr)
|
||||||
|
|| ip4_addr3(&requested_ip) != ip4_addr3(&state->first_client_addr)) {
|
||||||
|
sprintf_ipaddr(&requested_ip, ipbuf);
|
||||||
|
printf("DHCP Server Error: %s not an allowed IP\r\n", ipbuf);
|
||||||
|
send_dhcp_nak(dhcpmsg);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
/* Test the last octet is in the MAXCLIENTS range */
|
||||||
|
int16_t octet_offs = ip4_addr4(&requested_ip) - ip4_addr4(&state->first_client_addr);
|
||||||
|
if(octet_offs < 0 || octet_offs >= state->max_leases) {
|
||||||
|
printf("DHCP Server Error: Address out of range\r\n");
|
||||||
|
send_dhcp_nak(dhcpmsg);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
dhcp_lease_t *requested_lease = state->leases + octet_offs;
|
||||||
|
if(requested_lease->expires != 0 && memcmp(requested_lease->hwaddr, dhcpmsg->chaddr,dhcpmsg->hlen))
|
||||||
|
{
|
||||||
|
printf("DHCP Server Error: Lease for address already taken\r\n");
|
||||||
|
send_dhcp_nak(dhcpmsg);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
memcpy(requested_lease->hwaddr, dhcpmsg->chaddr, dhcpmsg->hlen);
|
||||||
|
sprintf_ipaddr(&requested_ip, ipbuf);
|
||||||
|
printf("DHCP lease addr %s assigned to MAC %02x:%02x:%02x:%02x:%02x:%02x\r\n", ipbuf, requested_lease->hwaddr[0],
|
||||||
|
requested_lease->hwaddr[1], requested_lease->hwaddr[2], requested_lease->hwaddr[3], requested_lease->hwaddr[4],
|
||||||
|
requested_lease->hwaddr[5]);
|
||||||
|
requested_lease->expires = DHCPSERVER_LEASE_TIME * configTICK_RATE_HZ;
|
||||||
|
|
||||||
|
/* Reuse the REQUEST message as the ACK message */
|
||||||
|
dhcpmsg->op = DHCP_BOOTREPLY;
|
||||||
|
bzero(dhcpmsg->options, DHCP_OPTIONS_LEN);
|
||||||
|
|
||||||
|
ip_addr_copy(dhcpmsg->yiaddr, requested_ip);
|
||||||
|
|
||||||
|
uint8_t *opt = (uint8_t *)&dhcpmsg->options;
|
||||||
|
opt = add_dhcp_option_byte(opt, DHCP_OPTION_MESSAGE_TYPE, DHCP_ACK);
|
||||||
|
uint32_t expiry = htonl(DHCPSERVER_LEASE_TIME);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_LEASE_TIME, &expiry, 4);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_SERVER_ID, &state->server_if->ip_addr, 4);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_SUBNET_MASK, &state->server_if->netmask, 4);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_END, NULL, 0);
|
||||||
|
|
||||||
|
struct netbuf *netbuf = netbuf_new();
|
||||||
|
netbuf_alloc(netbuf, sizeof(struct dhcp_msg));
|
||||||
|
netbuf_take(netbuf, dhcpmsg, sizeof(struct dhcp_msg));
|
||||||
|
netconn_sendto(state->nc, netbuf, IP_ADDR_BROADCAST, 68);
|
||||||
|
netbuf_delete(netbuf);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void handle_dhcp_release(struct dhcp_msg *dhcpmsg)
|
||||||
|
{
|
||||||
|
dhcp_lease_t *lease = find_lease_slot(dhcpmsg->chaddr);
|
||||||
|
if(lease) {
|
||||||
|
lease->expires = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void send_dhcp_nak(struct dhcp_msg *dhcpmsg)
|
||||||
|
{
|
||||||
|
/* Reuse 'dhcpmsg' for the NAK */
|
||||||
|
dhcpmsg->op = DHCP_BOOTREPLY;
|
||||||
|
bzero(dhcpmsg->options, DHCP_OPTIONS_LEN);
|
||||||
|
|
||||||
|
uint8_t *opt = (uint8_t *)&dhcpmsg->options;
|
||||||
|
opt = add_dhcp_option_byte(opt, DHCP_OPTION_MESSAGE_TYPE, DHCP_NAK);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_SERVER_ID, &state->server_if->ip_addr, 4);
|
||||||
|
opt = add_dhcp_option_bytes(opt, DHCP_OPTION_END, NULL, 0);
|
||||||
|
|
||||||
|
struct netbuf *netbuf = netbuf_new();
|
||||||
|
netbuf_alloc(netbuf, sizeof(struct dhcp_msg));
|
||||||
|
netbuf_take(netbuf, dhcpmsg, sizeof(struct dhcp_msg));
|
||||||
|
netconn_sendto(state->nc, netbuf, IP_ADDR_BROADCAST, 68);
|
||||||
|
netbuf_delete(netbuf);
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint8_t *find_dhcp_option(struct dhcp_msg *msg, uint8_t option_num, uint8_t min_length, uint8_t *length)
|
||||||
|
{
|
||||||
|
uint8_t *start = (uint8_t *)&msg->options;
|
||||||
|
uint8_t *msg_end = (uint8_t *)msg + sizeof(struct dhcp_msg);
|
||||||
|
|
||||||
|
for(uint8_t *p = start; p < msg_end-2;) {
|
||||||
|
uint8_t type = *p++;
|
||||||
|
uint8_t len = *p++;
|
||||||
|
if(type == DHCP_OPTION_END)
|
||||||
|
return NULL;
|
||||||
|
if(p+len >= msg_end)
|
||||||
|
break; /* We've overrun our valid DHCP message size, or this isn't a valid option */
|
||||||
|
if(type == option_num) {
|
||||||
|
if(len < min_length)
|
||||||
|
break;
|
||||||
|
if(length)
|
||||||
|
*length = len;
|
||||||
|
return p; /* start of actual option data */
|
||||||
|
}
|
||||||
|
p += len;
|
||||||
|
}
|
||||||
|
return NULL; /* Not found */
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint8_t *add_dhcp_option_byte(uint8_t *opt, uint8_t type, uint8_t value)
|
||||||
|
{
|
||||||
|
*opt++ = type;
|
||||||
|
*opt++ = 1;
|
||||||
|
*opt++ = value;
|
||||||
|
return opt;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint8_t *add_dhcp_option_bytes(uint8_t *opt, uint8_t type, void *value, uint8_t len)
|
||||||
|
{
|
||||||
|
*opt++ = type;
|
||||||
|
if(len) {
|
||||||
|
*opt++ = len;
|
||||||
|
memcpy(opt, value, len);
|
||||||
|
}
|
||||||
|
return opt+len;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Find a free DHCP lease, or a lease already assigned to 'hwaddr' */
|
||||||
|
static dhcp_lease_t *find_lease_slot(uint8_t *hwaddr)
|
||||||
|
{
|
||||||
|
dhcp_lease_t *empty_lease = NULL;
|
||||||
|
for(int i = 0; i < state->max_leases; i++) {
|
||||||
|
if(state->leases[i].expires == 0 && !empty_lease)
|
||||||
|
empty_lease = &state->leases[i];
|
||||||
|
else if (memcmp(hwaddr, state->leases[i].hwaddr, 6) == 0)
|
||||||
|
return &state->leases[i];
|
||||||
|
}
|
||||||
|
return empty_lease;
|
||||||
|
}
|
||||||
33
extras/dhcpserver/include/dhcpserver.h
Normal file
33
extras/dhcpserver/include/dhcpserver.h
Normal file
|
|
@ -0,0 +1,33 @@
|
||||||
|
/* Very basic LWIP & FreeRTOS-based DHCP server
|
||||||
|
*
|
||||||
|
* Header file contains default configuration for the DHCP server.
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* Part of esp-open-rtos
|
||||||
|
* Copyright (C) 2015 Superhouse Automation Pty Ltd
|
||||||
|
* BSD Licensed as described in the file LICENSE
|
||||||
|
*/
|
||||||
|
#ifndef _DHCPSERVER_H
|
||||||
|
#define _DHCPSERVER_H
|
||||||
|
|
||||||
|
#ifndef DHCPSERVER_LEASE_TIME
|
||||||
|
#define DHCPSERVER_LEASE_TIME 3600
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Start DHCP server.
|
||||||
|
|
||||||
|
Static IP of server should already be set and network interface enabled.
|
||||||
|
|
||||||
|
first_client_addr is the IP address of the first lease to be handed
|
||||||
|
to a client. Subsequent lease addresses are calculated by
|
||||||
|
incrementing the final octet of the IPv4 address, up to max_leases.
|
||||||
|
*/
|
||||||
|
void dhcpserver_start(const ip_addr_t *first_client_addr, uint8_t max_leases);
|
||||||
|
|
||||||
|
void dhcpserver_get_lease(const ip_addr_t *first_client_addr, uint8_t max_leases);
|
||||||
|
|
||||||
|
/* Stop DHCP server.
|
||||||
|
*/
|
||||||
|
void dhcpserver_stop(void);
|
||||||
|
|
||||||
|
#endif
|
||||||
43
libc/xtensa-lx106-elf/include/config.h
Normal file
43
libc/xtensa-lx106-elf/include/config.h
Normal file
|
|
@ -0,0 +1,43 @@
|
||||||
|
#ifndef __SYS_CONFIG_H__
|
||||||
|
#define __SYS_CONFIG_H__
|
||||||
|
|
||||||
|
#include <machine/ieeefp.h> /* floating point macros */
|
||||||
|
#include <sys/features.h> /* POSIX defs */
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
esp8266-specific xtensa stuff
|
||||||
|
*************************************************************************/
|
||||||
|
|
||||||
|
#ifndef _REENT_SMALL
|
||||||
|
#define _REENT_SMALL
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* esp8266 hardware FIFO buffers are 128 bytes */
|
||||||
|
#define __BUFSIZ__ 128
|
||||||
|
|
||||||
|
/*************************************************************************
|
||||||
|
end of esp8266-specific stuff
|
||||||
|
*************************************************************************/
|
||||||
|
|
||||||
|
#ifndef __EXPORT
|
||||||
|
#define __EXPORT
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef __IMPORT
|
||||||
|
#define __IMPORT
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/* Define return type of read/write routines. In POSIX, the return type
|
||||||
|
for read()/write() is "ssize_t" but legacy newlib code has been using
|
||||||
|
"int" for some time. If not specified, "int" is defaulted. */
|
||||||
|
#ifndef _READ_WRITE_RETURN_TYPE
|
||||||
|
#define _READ_WRITE_RETURN_TYPE int
|
||||||
|
#endif
|
||||||
|
/* Define `count' parameter of read/write routines. In POSIX, the `count'
|
||||||
|
parameter is "size_t" but legacy newlib code has been using "int" for some
|
||||||
|
time. If not specified, "int" is defaulted. */
|
||||||
|
#ifndef _READ_WRITE_BUFSIZE_TYPE
|
||||||
|
#define _READ_WRITE_BUFSIZE_TYPE int
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* __SYS_CONFIG_H__ */
|
||||||
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Reference in a new issue