auth-data.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2022 Felix Fietkau <nbd@nbd.name>
   4  */
   5 #ifndef __AUTH_DATA_H
   6 #define __AUTH_DATA_H
   7
   8 #include <stdint.h>
   9
  10 #include <libubox/utils.h>
  11
  12 #include "edsign.h"
  13 #include "curve25519.h"
  14
  15 #define UNET_AUTH_MAGIC 0x754e6574
  16
  17 struct unet_auth_hdr {
  18         uint32_t magic;
  19
  20         uint8_t version;
  21         uint8_t _pad[3];
  22
  23         uint8_t signature[EDSIGN_SIGNATURE_SIZE];
  24 } __packed;
  25
  26 struct unet_auth_data {
  27         uint64_t timestamp;
  28         uint8_t pubkey[CURVE25519_KEY_SIZE];
  29         uint32_t flags;
  30 } __packed;
  31
  32 int unet_auth_data_validate(const uint8_t *key, const void *buf, size_t len,
  33                             uint64_t *timestamp, const char **json_data);
  34
  35 static inline const struct unet_auth_data *
  36 net_data_auth_data_hdr(const void *net_data)
  37 {
  38         return net_data + sizeof(struct unet_auth_hdr);
  39 }
  40
  41 #endif