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moved type and constants for random data to include file;

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added consistency check in random; added source of randomness
internal to random using timing; only retrieve random bins that are full.
This commit is contained in:
Ben Gras
2009-04-02 15:24:44 +00:00
parent 51596bc608
commit 9647fbc94e
19 changed files with 177 additions and 80 deletions
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1
include/minix/com.h
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@@ -461,6 +461,7 @@
# define GET_PRIVID 17 /* get ID of privilege structure */
# define GET_HZ 18 /* get HZ value */
# define GET_WHOAMI 19 /* get own name and endpoint */
# define GET_RANDOMNESS_BIN 20 /* get one randomness bin */
#define I_ENDPT m7_i4 /* calling process */
#define I_VAL_PTR m7_p1 /* virtual address at caller */
#define I_VAL_LEN m7_i1 /* max length of value */

1
include/minix/syslib.h
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@@ -156,6 +156,7 @@ _PROTOTYPE(int sys_segctl, (int *index, u16_t *seg, vir_bytes *off,
#define sys_getprivtab(dst) sys_getinfo(GET_PRIVTAB, dst, 0,0,0)
#define sys_getproc(dst,nr) sys_getinfo(GET_PROC, dst, 0,0, nr)
#define sys_getrandomness(dst) sys_getinfo(GET_RANDOMNESS, dst, 0,0,0)
#define sys_getrandom_bin(d,b) sys_getinfo(GET_RANDOMNESS_BIN, d, 0,0,b)
#define sys_getimage(dst) sys_getinfo(GET_IMAGE, dst, 0,0,0)
#define sys_getirqhooks(dst) sys_getinfo(GET_IRQHOOKS, dst, 0,0,0)
#define sys_getirqactids(dst) sys_getinfo(GET_IRQACTIDS, dst, 0,0,0)

2
include/minix/sysutil.h
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@@ -58,6 +58,8 @@ _PROTOTYPE( int micro_delay, (u32_t micros));
_PROTOTYPE( u32_t micros_to_ticks, (u32_t micros));
_PROTOTYPE( int asynsend, (endpoint_t ep, message *msg));
_PROTOTYPE( void ser_putc, (char c));
_PROTOTYPE( void get_randomness, (struct k_randomness *, int));
#define ASSERT(c) if(!(c)) { panic(__FILE__, "assert " #c " failed at line", __LINE__); }

16
include/minix/type.h
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@@ -178,6 +178,22 @@ struct kmessages {
char km_buf[_KMESS_BUF_SIZE]; /* buffer for messages */
};
#include <ibm/interrupt.h>
/* randomness struct: random sources after interrupts: */
#define RANDOM_SOURCES NR_IRQ_VECTORS
#define RANDOM_ELEMENTS 64
typedef unsigned short rand_t;
struct k_randomness {
int random_elements, random_sources;
struct k_randomness_bin {
int r_next; /* next index to write */
int r_size; /* number of random elements */
rand_t r_buf[RANDOM_ELEMENTS]; /* buffer for random info */
} bin[RANDOM_SOURCES];
};
#endif /* _TYPE_H */