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/* Copyright (C) 2001-2005 by Hans Reiser, licensing governed by
reiser4progs/COPYING.
sdext_crypto.c -- crypto stat data extension plugin. */
#ifndef ENABLE_MINIMAL
#include "sdext_crypto.h"
reiser4_core_t *sdext_crypto_core = NULL;
extern reiser4_sdext_plug_t sdext_crypto_plug;
uint32_t sdext_crypto_length(stat_entity_t *stat, void *hint) {
sdext_crypto_t e;
uint16_t count;
aal_assert("vpf-1842", stat != NULL || hint != NULL);
if (hint) {
count = ((sdhint_crypto_t *)hint)->signlen;
} else {
if (stat->info.digest == INVAL_PTR) {
aal_error("Digest must be specified for \'%s\'.",
sdext_crypto_plug.p.label);
return 0;
}
count = reiser4_keysign_size(stat->info.digest);
}
return sizeof(e.keylen) + count;
}
static errno_t sdext_crypto_open(stat_entity_t *stat, void *hint) {
sdhint_crypto_t *crch;
sdext_crypto_t *ext;
aal_assert("vpf-1837", stat != NULL);
aal_assert("vpf-1838", hint != NULL);
if (stat->info.digest == INVAL_PTR) {
aal_error("Digest must be specified for \'%s\'.",
sdext_crypto_plug.p.label);
return -EIO;
}
crch = (sdhint_crypto_t *)hint;
ext = (sdext_crypto_t *)stat_body(stat);
crch->keylen = sdext_crypto_get_keylen(ext);
crch->signlen = reiser4_keysign_size(stat->info.digest);
aal_memcpy(crch->sign, ext->sign, crch->signlen);
return 0;
}
static errno_t sdext_crypto_init(stat_entity_t *stat, void *hint) {
sdhint_crypto_t *crch;
sdext_crypto_t *ext;
aal_assert("vpf-1839", stat != NULL);
aal_assert("vpf-1840", hint != NULL);
ext = (sdext_crypto_t *)stat_body(stat);
crch = (sdhint_crypto_t *)hint;
sdext_crypto_set_keylen(ext, crch->keylen);
aal_memcpy(ext->sign, crch->sign, crch->signlen);
return 0;
}
extern errno_t sdext_crypto_check_struct(stat_entity_t *stat,
repair_hint_t *hint);
extern void sdext_crypto_print(stat_entity_t *stat,
aal_stream_t *stream,
uint16_t options);
reiser4_sdext_plug_t sdext_crypto_plug = {
.p = {
.id = {SDEXT_CRYPTO_ID, 0, SDEXT_PLUG_TYPE},
.label = "sdext_crypto",
.desc = "Crypto stat data extension plugin.",
},
.open = sdext_crypto_open,
.init = sdext_crypto_init,
.info = NULL,
.print = sdext_crypto_print,
.check_struct = NULL,
.open = NULL,
.length = sdext_crypto_length
};
#endif
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