Differential D19372 Diff 54495 head/tools/tools/crypto/cryptocheck.c

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head/tools/tools/crypto/cryptocheck.c

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* aes-gcm192 192-bit aes gcm		* aes-gcm192 192-bit aes gcm
* aes-gcm256 256-bit aes gcm		* aes-gcm256 256-bit aes gcm
* aes-ccm 128-bit aes ccm		* aes-ccm 128-bit aes ccm
* aes-ccm192 192-bit aes ccm		* aes-ccm192 192-bit aes ccm
* aes-ccm256 256-bit aes ccm		* aes-ccm256 256-bit aes ccm
*/		*/

#include <sys/param.h>		#include <sys/param.h>
		#include <sys/sysctl.h>
#include <assert.h>		#include <assert.h>
#include <err.h>		#include <err.h>
#include <fcntl.h>		#include <fcntl.h>
#include <libutil.h>		#include <libutil.h>
#include <stdbool.h>		#include <stdbool.h>
#include <stdio.h>		#include <stdio.h>
#include <string.h>		#include <string.h>
#include <unistd.h>		#include <unistd.h>
▲ Show 20 Lines • Show All 148 Lines • ▼ Show 20 Lines	devcrypto(void)
if (fd < 0) {		if (fd < 0) {
fd = open("/dev/crypto", O_RDWR \| O_CLOEXEC, 0);		fd = open("/dev/crypto", O_RDWR \| O_CLOEXEC, 0);
if (fd < 0)		if (fd < 0)
err(1, "/dev/crypto");		err(1, "/dev/crypto");
}		}
return (fd);		return (fd);
}		}

		/*
		* Called on exit to change kern.cryptodevallowsoft back to 0
		*/
		#define CRYPT_SOFT_ALLOW "kern.cryptodevallowsoft"

		static void
		reset_user_soft(void)
		{
		int off = 0;
		sysctlbyname(CRYPT_SOFT_ALLOW, NULL, NULL, &off, sizeof(off));
		}

		static void
		enable_user_soft(void)
		{
		int curstate;
		int on = 1;
		size_t cursize = sizeof(curstate);

		if (sysctlbyname(CRYPT_SOFT_ALLOW, &curstate, &cursize,
		&on, sizeof(on)) == 0) {
		if (curstate == 0)
		atexit(reset_user_soft);
		}
		}

static int		static int
crlookup(const char *devname)		crlookup(const char *devname)
{		{
struct crypt_find_op find;		struct crypt_find_op find;

if (strncmp(devname, "soft", 4) == 0)		if (strncmp(devname, "soft", 4) == 0) {
		enable_user_soft();
return CRYPTO_FLAG_SOFTWARE;		return CRYPTO_FLAG_SOFTWARE;
		}

find.crid = -1;		find.crid = -1;
strlcpy(find.name, devname, sizeof(find.name));		strlcpy(find.name, devname, sizeof(find.name));
if (ioctl(devcrypto(), CIOCFINDDEV, &find) == -1)		if (ioctl(devcrypto(), CIOCFINDDEV, &find) == -1)
err(1, "ioctl(CIOCFINDDEV)");		err(1, "ioctl(CIOCFINDDEV)");
return (find.crid);		return (find.crid);
}		}

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