siphash.h

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#ifndef NDNDPDK_CORE_SIPHASH_H
#define NDNDPDK_CORE_SIPHASH_H

 
#include "common.h"
 
#include "../vendor/siphash-20201003.h"

typedef struct sipkey SipHashKey;
 
enum {
  SipHashKeyLength = SIP_KEYLEN,
};
 
__attribute__((nonnull)) static inline void
SipHashKey_FromBuffer(SipHashKey* key, const uint8_t buf[SipHashKeyLength]) {
  sip_tokey(key, buf);
}

typedef struct siphash SipHash;

__attribute__((nonnull)) static inline void
SipHash_Init(SipHash* h, const SipHashKey* key) {
  sip24_init(h, key);
}

__attribute__((nonnull)) static inline void
SipHash_Write(SipHash* h, const uint8_t* input, size_t count) {
  sip24_update(h, input, count);
}

__attribute__((nonnull)) static inline uint64_t
SipHash_Final(SipHash* h) {
  return sip24_final(h);
}

__attribute__((nonnull)) static inline uint64_t
SipHash_Sum(const SipHash* h) {
  SipHash copy = *h;
  copy.p = RTE_PTR_ADD(copy.buf, RTE_PTR_DIFF(h->p, h->buf));
  return sip24_final(&copy);
}
 
#undef _SIP_ULL
#undef SIP_ROTL
#undef SIP_U32TO8_LE
#undef SIP_U64TO8_LE
#undef SIP_U8TO64_LE
#undef SIPHASH_INITIALIZER
#undef sip_keyof
#undef sip_endof
 
#endif // NDNDPDK_CORE_SIPHASH_H