Differential D22512 Diff 65940 sys/dev/random/other_algorithm.c

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sys/dev/random/other_algorithm.c

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	#include <dev/random/uint128.h>			#include <dev/random/uint128.h>
	#include <dev/random/other_algorithm.h>			#include <dev/random/other_algorithm.h>
	#endif /* _KERNEL */			#endif /* _KERNEL */

	static void random_other_pre_read(void);			static void random_other_pre_read(void);
	static void random_other_read(uint8_t *, size_t);			static void random_other_read(uint8_t *, size_t);
	static bool random_other_seeded(void);			static bool random_other_seeded(void);
	static void random_other_process_event(struct harvest_event *);			static void random_other_process_event(struct harvest_event *);
	static void random_other_init_alg(void *);
	static void random_other_deinit_alg(void *);

	/*			/*
	* RANDOM_OTHER_NPOOLS is used when reading hardware random			* RANDOM_OTHER_NPOOLS is used when reading hardware random
	* number sources to ensure that each pool gets one read sample			* number sources to ensure that each pool gets one read sample
	* per loop iteration. Fortuna has 32 (0-31).			* per loop iteration. Fortuna has 32 (0-31).
	*/			*/
	#define RANDOM_OTHER_NPOOLS 1			#define RANDOM_OTHER_NPOOLS 1

	struct random_algorithm random_alg_context = {			#ifdef RANDOM_LOADABLE
				static
				#endif
				const struct random_algorithm random_alg_context = {
	.ra_ident = "other",			.ra_ident = "other",
	.ra_init_alg = random_other_init_alg,
	.ra_deinit_alg = random_other_deinit_alg,
	.ra_pre_read = random_other_pre_read,			.ra_pre_read = random_other_pre_read,
	.ra_read = random_other_read,			.ra_read = random_other_read,
	.ra_seeded = random_other_seeded,			.ra_seeded = random_other_seeded,
	.ra_event_processor = random_other_process_event,			.ra_event_processor = random_other_process_event,
	.ra_poolcount = RANDOM_OTHER_NPOOLS,			.ra_poolcount = RANDOM_OTHER_NPOOLS,
	};			};

	/* Use a mutex to protect your reseed variables? */			/* Use a mutex to protect your reseed variables? */
	static mtx_t other_mtx;			static mtx_t other_mtx;

	/*			/*
	* void random_other_init_alg(void *unused __unused)			* void random_other_init_alg(void *unused __unused)
				gordonUnsubmitted Done Inline Actions Tiny nit. Update the comment to match the new function declaration. gordon: Tiny nit. Update the comment to match the new function declaration.
				cemAuthorUnsubmitted Done Inline Actions `static`? Maybe just remove the comment entirely since it purely duplicates the code? cem: `static`? Maybe just remove the comment entirely since it purely duplicates the code?
	*			*
	* Do algorithm-specific initialisation here.			* Do algorithm-specific initialisation here.
	*/			*/
	void			static void
	random_other_init_alg(void *unused __unused)			random_other_init_alg(void *unused __unused)
	{			{

				#ifdef RANDOM_LOADABLE
				p_random_alg_context = &random_alg_context;
				#endif

	RANDOM_RESEED_INIT_LOCK();			RANDOM_RESEED_INIT_LOCK();
	/*			/*
	* Do set-up work here!			* Do set-up work here!
	*/			*/
	}			}
				SYSINIT(random_alg, SI_SUB_RANDOM, SI_ORDER_SECOND, random_other_init_alg,
	/*			NULL);
	* void random_other_deinit_alg(void *unused __unused)
	*
	* Do algorithm-specific deinitialisation here.
	*/
	static void
	random_other_deinit_alg(void *unused __unused)
	{

	/*
	* Do tear-down work here!
	*/
	RANDOM_RESEED_DEINIT_LOCK();
	}

	/*			/*
	* void random_other_pre_read(void)			* void random_other_pre_read(void)
	*			*
	* Do any pre-read preparation you need to. This will be called			* Do any pre-read preparation you need to. This will be called
	* before >=1 calls to random_other_read() corresponding to one			* before >=1 calls to random_other_read() corresponding to one
	* read(2).			* read(2).
	*			*
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