geom/eli/g_eli_integrity.c

63  * data. We can't use that directly (ie. we can't create provider with 480 bytes
66  * original provider at the input and leaves us one sector of authenticated data
68  * Now, let's assume, we want to create provider with 4096 bytes sector.
72  * original provider. I find it as an acceptable cost.
166 		/* Sectorsize of decrypted provider eg. 4096. */
168 		/* The real sectorsize of encrypted provider, eg. 512. */
169 		encr_secsize = LIST_FIRST(&sc->sc_geom->consumer)->provider->sectorsize;
172 		/* Number of sectors from decrypted provider, eg. 2. */
174 		/* Number of sectors from encrypted provider, eg. 18. */
299 	cbp->bio_to = cp->provider;
302 	/* Number of sectors from decrypted provider, eg. 1. */
304 	/* Number of sectors from encrypted provider, eg. 9. */
305 	nsec = (nsec * sc->sc_bytes_per_sector) / cp->provider->sectorsize;
307 	cbp->bio_length = cp->provider->sectorsize * nsec;
321 		cbp2->bio_to = cp->provider;
326 	 * Send encrypted data to the provider.
352 	cbp->bio_to = cp->provider;
355 	/* Number of sectors from decrypted provider, eg. 1. */
357 	/* Number of sectors from encrypted provider, eg. 9. */
358 	nsec = (nsec * sc->sc_bytes_per_sector) / cp->provider->sectorsize;
360 	cbp->bio_length = cp->provider->sectorsize * nsec;
382 		cbp2->bio_to = cp->provider;
387 	 * Read encrypted data from provider.
423 	/* Sectorsize of decrypted provider eg. 4096. */
425 	/* The real sectorsize of encrypted provider, eg. 512. */
426 	encr_secsize = LIST_FIRST(&sc->sc_geom->consumer)->provider->sectorsize;
429 	/* Number of sectors from decrypted provider, eg. 2. */
431 	/* Number of sectors from encrypted provider, eg. 18. */