wa_guard.h

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#ifndef RCBENCH_WA_GUARD_H
#define RCBENCH_WA_GUARD_H
 
#include <stdbool.h>
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif

#define WA_UPLOAD_HDR     "X-Rcbench-Upload"
#define WA_UPLOAD_VAL     "1"
#define WA_CODE_BODY_MAX  95u
#define WA_HTTP_PORT      80u

typedef enum {
    WA_REQ_READ = 0,  
    WA_REQ_CODE,      
    WA_REQ_UPLOAD,    
} wa_req_kind_t;

typedef enum {
    WA_GUARD_OK = 0,
    WA_GUARD_HOST,    
    WA_GUARD_BODY,    
    WA_GUARD_BIG,     
    WA_GUARD_ORIGIN,  
    WA_GUARD_UPLOAD,  
} wa_guard_t;

typedef struct {
    const char *name;  
    uint8_t     ip[4]; 
} wa_self_t;

typedef struct {
    const char *host;      
    const char *origin;    
    const char *referer;   
    const char *upload;    
    uint64_t    body;      
} wa_req_t;

bool wa_host_ok(const char *host, const wa_self_t *self);

bool wa_origin_ok(const char *origin, const char *referer,
                  const wa_self_t *self);

wa_guard_t wa_guard(wa_req_kind_t kind, const wa_req_t *req,
                    const wa_self_t *self);

const char *wa_guard_status(wa_guard_t g);
 
#ifdef __cplusplus
}
#endif
 
#endif /* RCBENCH_WA_GUARD_H */