dump_stack.c « lib - litmus-rt.git - The LITMUS^RT kernel.

index : litmus-rt.git

The LITMUS^RT kernel.

Bjoern Brandenburg

about summary refs log tree commit diff stats

path: root/lib/dump_stack.c

blob: 53bff4c8452b52ce2d46da276d6dd5519dea0cbf (plain) (blame)

/*
 * Provide a default dump_stack() function for architectures
 * which don't implement their own.
 */

#include <linux/kernel.h>
#include <linux/module.h>

void dump_stack(void)
{
	printk(KERN_NOTICE
		"This architecture does not implement dump_stack()\n");
}

EXPORT_SYMBOL(dump_stack);

opt">; __be32 *const out_blk = (__be32 *)dst; const u32 *P = ctx->p; const u32 *S = ctx->s; u32 yl = be32_to_cpu(in_blk[0]); u32 yr = be32_to_cpu(in_blk[1]); ROUND(yr, yl, 0); ROUND(yl, yr, 1); ROUND(yr, yl, 2); ROUND(yl, yr, 3); ROUND(yr, yl, 4); ROUND(yl, yr, 5); ROUND(yr, yl, 6); ROUND(yl, yr, 7); ROUND(yr, yl, 8); ROUND(yl, yr, 9); ROUND(yr, yl, 10); ROUND(yl, yr, 11); ROUND(yr, yl, 12); ROUND(yl, yr, 13); ROUND(yr, yl, 14); ROUND(yl, yr, 15); yl ^= P[16]; yr ^= P[17]; out_blk[0] = cpu_to_be32(yr); out_blk[1] = cpu_to_be32(yl); } static void bf_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) { struct bf_ctx *ctx = crypto_tfm_ctx(tfm); const __be32 *in_blk = (const __be32 *)src; __be32 *const out_blk = (__be32 *)dst; const u32 *P = ctx->p; const u32 *S = ctx->s; u32 yl = be32_to_cpu(in_blk[0]); u32 yr = be32_to_cpu(in_blk[1]); ROUND(yr, yl, 17); ROUND(yl, yr, 16); ROUND(yr, yl, 15); ROUND(yl, yr, 14); ROUND(yr, yl, 13); ROUND(yl, yr, 12); ROUND(yr, yl, 11); ROUND(yl, yr, 10); ROUND(yr, yl, 9); ROUND(yl, yr, 8); ROUND(yr, yl, 7); ROUND(yl, yr, 6); ROUND(yr, yl, 5); ROUND(yl, yr, 4); ROUND(yr, yl, 3); ROUND(yl, yr, 2); yl ^= P[1]; yr ^= P[0]; out_blk[0] = cpu_to_be32(yr); out_blk[1] = cpu_to_be32(yl); } static struct crypto_alg alg = { .cra_name = "blowfish", .cra_driver_name = "blowfish-generic", .cra_priority = 100, .cra_flags = CRYPTO_ALG_TYPE_CIPHER, .cra_blocksize = BF_BLOCK_SIZE, .cra_ctxsize = sizeof(struct bf_ctx), .cra_alignmask = 3, .cra_module = THIS_MODULE, .cra_u = { .cipher = { .cia_min_keysize = BF_MIN_KEY_SIZE, .cia_max_keysize = BF_MAX_KEY_SIZE, .cia_setkey = blowfish_setkey, .cia_encrypt = bf_encrypt, .cia_decrypt = bf_decrypt } } }; static int __init blowfish_mod_init(void) { return crypto_register_alg(&alg); } static void __exit blowfish_mod_fini(void) { crypto_unregister_alg(&alg); } module_init(blowfish_mod_init); module_exit(blowfish_mod_fini); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Blowfish Cipher Algorithm"); MODULE_ALIAS("blowfish");