diff options
Diffstat (limited to 'sdk/recipes/files/openssl/ppc-amigaos/crypto/rand/rand_amiga.c')
| -rw-r--r-- | sdk/recipes/files/openssl/ppc-amigaos/crypto/rand/rand_amiga.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/sdk/recipes/files/openssl/ppc-amigaos/crypto/rand/rand_amiga.c b/sdk/recipes/files/openssl/ppc-amigaos/crypto/rand/rand_amiga.c deleted file mode 100644 index cd3f236..0000000 --- a/sdk/recipes/files/openssl/ppc-amigaos/crypto/rand/rand_amiga.c +++ /dev/null @@ -1,182 +0,0 @@ -#include <openssl/rand.h> -#include <openssl/sha.h> -#include "rand_lcl.h" - -#if defined(OPENSSL_SYS_AMIGAOS3) || defined(OPENSSL_SYS_AMIGAOS4) -#define __USE_INLINE__ 1 - -#include <proto/exec.h> -#include <proto/timer.h> -#include <devices/timer.h> - -/* Maximum number of attempts to get a delay of 1 microsecond that is not equal to 0 */ -#define MAX_ATTEMPTS 1000 - -#ifdef __amigaos4__ - -#ifdef CreateMsgPort -#undef CreateMsgPort -#endif -#define CreateMsgPort() AllocSysObject(ASOT_PORT,NULL) -#ifdef DeleteMsgPort -#undef DeleteMsgPort -#endif -#define DeleteMsgPort(msgPort) FreeSysObject(ASOT_PORT,msgPort) -#ifdef CreateIORequest -#undef CreateIORequest -#endif -#define CreateIORequest(ioReplyPort,size) AllocSysObjectTags(ASOT_IOREQUEST,ASOIOR_ReplyPort,ioReplyPort,ASOIOR_Size,size,TAG_DONE) -#ifdef DeleteIORequest -#undef DeleteIORequest -#endif -#define DeleteIORequest(ioReq) FreeSysObject(ASOT_IOREQUEST,ioReq) - -#else - -#define GetInterface(a, b, c, d) 1 -#define DropInterface(x) - -/* OS3 has a different but compatible TimeVal definition */ -struct TimeVal -{ - uint32 Seconds; - uint32 Microseconds; -}; - -#endif /* !__amigaos4__ */ - -int RAND_poll(void) -{ - unsigned char temp_buffer[SHA_DIGEST_LENGTH], data_buffer[SHA_DIGEST_LENGTH]; - struct MsgPort *port = NULL; - double entropy_added = 0; - struct TimeRequest *time_request = NULL; -#ifdef __amigaos4__ - struct IOStdReq *entropy_request = NULL; - - if ((port = CreateMsgPort()) - && (entropy_request = (struct IOStdReq *)CreateIORequest(port, sizeof(*entropy_request)))) - { - if (OpenDevice(TIMERNAME, UNIT_ENTROPY, (struct IORequest *)entropy_request, 0) == 0) - { - while(entropy_added < ENTROPY_NEEDED) - { - entropy_request->io_Command = TR_READENTROPY; - entropy_request->io_Data = &temp_buffer[0]; - entropy_request->io_Length = sizeof(temp_buffer); - - if (DoIO((struct IORequest *)entropy_request) == 0) - { - SHA1(&temp_buffer[0], sizeof(temp_buffer), &data_buffer[0]); - RAND_add(&data_buffer[0], sizeof(data_buffer), sizeof(data_buffer)); - entropy_added += sizeof(data_buffer); - } - else - break; - } - - CloseDevice((struct IORequest *)entropy_request); - } - } - - DeleteIORequest((struct IORequest *)entropy_request); -#endif /* __amigaos4__ */ - - /* The following block will be used on "classic" machines. It does not generate - * a high degree of randomness, but it does the job since RAND_poll is - * called only once by OpenSSL to generate a 32 byte seed. - */ - if (entropy_added < ENTROPY_NEEDED - && (port || (port = CreateMsgPort())) - && (time_request = (struct TimeRequest *)CreateIORequest(port, sizeof(*time_request)))) - { - if (OpenDevice(TIMERNAME, UNIT_VBLANK, (struct IORequest *)time_request, 0) == 0) - { - #if defined(__amigaos4__) - struct TimerIFace *ITimer = NULL; - #endif - struct Device *TimerBase; - - if ((TimerBase = time_request->Request.io_Device) - #if defined(__amigaos4__) - && (ITimer = (struct TimerIFace *)GetInterface((struct Library *)TimerBase, "main", 1, NULL)) - #endif - ) - { - struct EClockVal curr_eclock; - ULONG prev_ev_lo = 0; - struct TimeVal tv; - int i, attempt; - BOOL aborted; - - ReadEClock(&curr_eclock); - aborted = FALSE; - - while(!aborted && entropy_added < ENTROPY_NEEDED) - { - for(i = 0; - !aborted && i < (int)sizeof(temp_buffer) - (int)sizeof(ULONG); - i++) - { - attempt = 0; - - /* Ask for a one microsecond delay and measure the time - * the delay actually took. - */ - do - { - time_request->Request.io_Command = TR_ADDREQUEST; - time_request->Time.Seconds = 0; - time_request->Time.Microseconds = 1; - - if (DoIO((struct IORequest *)time_request) == 0) - { - prev_ev_lo = curr_eclock.ev_lo; - ReadEClock(&curr_eclock); - - attempt++; - } - else - aborted = TRUE; - } while(!aborted && prev_ev_lo == 0 && attempt < MAX_ATTEMPTS); - - if (attempt >= MAX_ATTEMPTS) - aborted = TRUE; - - /* Since we are going for randomness, ev_hi is irrelevant */ - temp_buffer[i] = (unsigned char)(curr_eclock.ev_lo - prev_ev_lo); - } - - GetSysTime(&tv); - - if (sizeof(temp_buffer) > sizeof(ULONG)) - *(ULONG *)&temp_buffer[sizeof(temp_buffer) - sizeof(ULONG)] - = tv.Microseconds; - - /* Shuffle the bits around and specify that about - * one fourth of it adds to the entropy. - */ - if (!aborted) - { - SHA1(&temp_buffer[0], sizeof(temp_buffer), &data_buffer[0]); - RAND_add(&data_buffer[0], sizeof(data_buffer), (double)sizeof(data_buffer) / 4); - entropy_added += sizeof(data_buffer) / 4; - } - } - } - - #if defined(__amigaos4__) - DropInterface((struct Interface *)ITimer); - #endif - CloseDevice((struct IORequest *)time_request); - } - } - - DeleteIORequest((struct IORequest *)time_request); - - DeleteMsgPort(port); - - return(entropy_added >= ENTROPY_NEEDED); -} - -#endif /* OPENSSL_SYS_AMIGA */ |