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ota.h
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ota.h
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/* (c) 2018-2020 HomeAccessoryKid */
#ifndef __OTA_H__
#define __OTA_H__
#ifndef OTAVERSION
#error You must set OTAVERSION=x.y.z of the ota code to match github version tag x.y.z
#endif
#define OTAREPO "HomeACcessoryKid/life-cycle-manager"
//#define LCMREPO "HomeACcessoryKid/life-cycle-manager"
#define BTLREPO "HomeACcessoryKid/rboot4lcm"
#define BTLFILE "rboot.bin"
#define MAINFILE "otamain.bin"
#define BOOTFILE "otaboot.bin"
#define CERTFILE "certs.sector"
#define HOLDOFF_MULTIPLIER 20 //more like 20 -> 20s,400 (~6min),8000 (~2h),160000 (~2days)
#define HOLDOFF_MAX 604800 //more like 604800 (1 week)
#define BLINKDELAY 250
#define EMERGENCY "emergency"
#define SECTORSIZE 4096
#define HIGHERCERTSECTOR 0xFA000
#define LOWERCERTSECTOR 0xF9000
#define SYSPARAMSECTOR 0xF7000
#define BOOT0SECTOR 0x02000
#define BOOT1SECTOR 0x8D000 //must match the program1.ld value!!
#define HOST "github.com"
#define HTTPS_PORT 443
#define HTTP_PORT 80
#define FAILED "failed\n"
#define REQUESTHEAD "GET /"
#define REQUESTTAIL " HTTP/1.1\r\nHost: "
#define CRLFCRLF "\r\n\r\n"
#define RECV_BUF_LEN 1025 // current length of amazon URL 724
#define RANGE "\r\nRange: bytes="
#define MAXVERSIONLEN 16
#define SNTP_SERVERS "0.pool.ntp.org", "1.pool.ntp.org", "2.pool.ntp.org", "3.pool.ntp.org"
#define ECDSAKEYLENGTHMAX 128 //to be verified better, example is 120 bytes secP384r1
#define HASHSIZE 48 //SHA-384
#define SIGNSIZE 104 //ECDSA r+s in ASN1 format secP384r1
#define PKEYSIZE 120 //size of a pub key
#define KEYNAME "public-%d.key"
#define KEYNAMELEN 16 //allows for 9999 keys
typedef unsigned char byte;
typedef struct {
byte hash[HASHSIZE];
unsigned int size; //32 bit
byte sign[SIGNSIZE];
} signature_t;
int active_cert_sector;
int backup_cert_sector;
void ota_read_rtc();
void ota_active_sector();
void ota_init();
int ota_get_privkey();
int ota_get_pubkey(int sector); //get the ecdsa key from the active_cert_sector
int ota_verify_pubkey(void); //check if public and private key are a pair
void ota_sign(int start_sector, int num_sectors, signature_t* signature, char* file);
int ota_compare(char* newv, char* oldv);
int ota_load_user_app(char * *repo, char * *version, char * *file);
void ota_set_verify(int onoff);
void ota_copy_bootloader(int sector, int size, char * version);
char* ota_get_btl_version();
char* ota_get_version(char * repo);
int ota_get_file(char * repo, char * version, char * file, int sector); //number of bytes
void ota_finalize_file(int sector);
int ota_get_newkey(char * repo, char * version, char * file, signature_t* signature);
int ota_get_hash(char * repo, char * version, char * file, signature_t* signature);
int ota_verify_hash(int address, signature_t* signature);
int ota_verify_signature(signature_t* signature);
void ota_swap_cert_sector();
void ota_write_status(char * version);
int ota_boot(void);
void ota_temp_boot(void);
void ota_reboot(void);
int ota_emergency(char * *ota_srvr);
#endif // __OTA_H__