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Add support for TLS.

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Cert is self-signed and auto-generated on first boot.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2026-04-19 03:16:54 +02:00
parent f8cbb145f4
commit febae0e664
8 changed files with 1034 additions and 259 deletions
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64
src/usb/lwip/rest_server.h
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@@ -22,49 +22,53 @@
#ifdef ENABLE_EMULATION
typedef int err_t;
#define ERR_OK 0
#define ERR_VAL -6
#define ERR_ABRT -13
#else
#include "lwip/err.h"
#endif
#include <stddef.h>
#include <stdint.h>
#include "cJSON.h"
#include <stdbool.h>
#include "mbedtls/ssl.h"
#include "rest.h"
#define REST_PORT 80
#define REST_MAX_CONNS 4
#define REST_MAX_REQUEST_SIZE 1024
#define REST_MAX_METHOD_SIZE 8
#define REST_MAX_CONTENT_TYPE_SIZE 64
#define REST_MAX_PATH_SIZE 192
#define EF_TLS_KEY 0xD500
#define EF_TLS_CERT 0xD501
typedef enum {
REST_HTTP_GET = 0,
REST_HTTP_POST,
REST_HTTP_PUT,
REST_HTTP_DELETE
} rest_http_method_t;
REST_CONN_PLAIN = 0x1,
REST_CONN_TLS = 0x2,
REST_CONN_ALL = REST_CONN_PLAIN | REST_CONN_TLS
} rest_conn_type_t;
typedef struct {
rest_http_method_t method;
char path[REST_MAX_PATH_SIZE];
const char *body;
size_t body_len;
const char *content_type;
} rest_request_t;
bool in_use;
#ifdef ENABLE_EMULATION
int sock;
#else
struct tcp_pcb *pcb;
#endif
char request[REST_MAX_REQUEST_SIZE + 1];
size_t request_len;
rest_conn_type_t conn_type;
mbedtls_ssl_context ssl;
unsigned char rx_cipher[REST_MAX_REQUEST_SIZE];
size_t rx_cipher_len;
bool handshake_done;
bool request_complete;
bool request_dispatched;
} rest_conn_t;
typedef struct {
uint16_t status_code;
const char *content_type;
char *body; // heap !
size_t body_len;
cJSON *json;
} rest_response_t;
typedef int (*rest_route_handler_t)(const rest_request_t *request, rest_response_t *response);
typedef struct {
rest_http_method_t method;
const char *path;
rest_route_handler_t handler;
} rest_route_t;
const rest_route_t *rest_get_routes(size_t *count);
err_t rest_server_init(void);
err_t rest_server_init(rest_conn_type_t conn_type);
int lwip_itf_init(void);
extern int rest_server_error(rest_response_t *response, int status_code, const char *message);