| g_eli_integrity.c (214116) | g_eli_integrity.c (214118) |
|---|---|
| 1/*- 2 * Copyright (c) 2005-2010 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2005-2010 Pawel Jakub Dawidek <pjd@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/geom/eli/g_eli_integrity.c 214116 2010-10-20 20:01:45Z pjd $"); | 28__FBSDID("$FreeBSD: head/sys/geom/eli/g_eli_integrity.c 214118 2010-10-20 20:50:55Z pjd $"); |
| 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/kernel.h> 33#include <sys/linker.h> 34#include <sys/module.h> 35#include <sys/lock.h> 36#include <sys/mutex.h> --- 87 unchanged lines hidden (view full) --- 124/* 125 * The function is called after we read and decrypt data. 126 * 127 * g_eli_start -> g_eli_auth_read -> g_io_request -> g_eli_read_done -> g_eli_auth_run -> G_ELI_AUTH_READ_DONE -> g_io_deliver 128 */ 129static int 130g_eli_auth_read_done(struct cryptop *crp) 131{ | 29 30#include <sys/param.h> 31#include <sys/systm.h> 32#include <sys/kernel.h> 33#include <sys/linker.h> 34#include <sys/module.h> 35#include <sys/lock.h> 36#include <sys/mutex.h> --- 87 unchanged lines hidden (view full) --- 124/* 125 * The function is called after we read and decrypt data. 126 * 127 * g_eli_start -> g_eli_auth_read -> g_io_request -> g_eli_read_done -> g_eli_auth_run -> G_ELI_AUTH_READ_DONE -> g_io_deliver 128 */ 129static int 130g_eli_auth_read_done(struct cryptop *crp) 131{ |
| 132 struct g_eli_softc *sc; |
|
| 132 struct bio *bp; 133 134 if (crp->crp_etype == EAGAIN) { 135 if (g_eli_crypto_rerun(crp) == 0) 136 return (0); 137 } 138 bp = (struct bio *)crp->crp_opaque; 139 bp->bio_inbed++; --- 7 unchanged lines hidden (view full) --- 147 if (bp->bio_error == 0) 148 bp->bio_error = crp->crp_etype; 149 } 150 /* 151 * Do we have all sectors already? 152 */ 153 if (bp->bio_inbed < bp->bio_children) 154 return (0); | 133 struct bio *bp; 134 135 if (crp->crp_etype == EAGAIN) { 136 if (g_eli_crypto_rerun(crp) == 0) 137 return (0); 138 } 139 bp = (struct bio *)crp->crp_opaque; 140 bp->bio_inbed++; --- 7 unchanged lines hidden (view full) --- 148 if (bp->bio_error == 0) 149 bp->bio_error = crp->crp_etype; 150 } 151 /* 152 * Do we have all sectors already? 153 */ 154 if (bp->bio_inbed < bp->bio_children) 155 return (0); |
| 156 sc = bp->bio_to->geom->softc; |
|
| 155 if (bp->bio_error == 0) { | 157 if (bp->bio_error == 0) { |
| 156 struct g_eli_softc *sc; | |
| 157 u_int i, lsec, nsec, data_secsize, decr_secsize, encr_secsize; 158 u_char *srcdata, *dstdata, *auth; 159 off_t coroff, corsize; 160 161 /* 162 * Verify data integrity based on calculated and read HMACs. 163 */ | 158 u_int i, lsec, nsec, data_secsize, decr_secsize, encr_secsize; 159 u_char *srcdata, *dstdata, *auth; 160 off_t coroff, corsize; 161 162 /* 163 * Verify data integrity based on calculated and read HMACs. 164 */ |
| 164 sc = bp->bio_to->geom->softc; | |
| 165 /* Sectorsize of decrypted provider eg. 4096. */ 166 decr_secsize = bp->bio_to->sectorsize; 167 /* The real sectorsize of encrypted provider, eg. 512. */ 168 encr_secsize = LIST_FIRST(&sc->sc_geom->consumer)->provider->sectorsize; 169 /* Number of data bytes in one encrypted sector, eg. 480. */ 170 data_secsize = sc->sc_data_per_sector; 171 /* Number of sectors from decrypted provider, eg. 2. */ 172 nsec = bp->bio_length / decr_secsize; --- 62 unchanged lines hidden (view full) --- 235 bp->bio_error); 236 } 237 bp->bio_completed = 0; 238 } 239 /* 240 * Read is finished, send it up. 241 */ 242 g_io_deliver(bp, bp->bio_error); | 165 /* Sectorsize of decrypted provider eg. 4096. */ 166 decr_secsize = bp->bio_to->sectorsize; 167 /* The real sectorsize of encrypted provider, eg. 512. */ 168 encr_secsize = LIST_FIRST(&sc->sc_geom->consumer)->provider->sectorsize; 169 /* Number of data bytes in one encrypted sector, eg. 480. */ 170 data_secsize = sc->sc_data_per_sector; 171 /* Number of sectors from decrypted provider, eg. 2. */ 172 nsec = bp->bio_length / decr_secsize; --- 62 unchanged lines hidden (view full) --- 235 bp->bio_error); 236 } 237 bp->bio_completed = 0; 238 } 239 /* 240 * Read is finished, send it up. 241 */ 242 g_io_deliver(bp, bp->bio_error); |
| 243 atomic_subtract_int(&sc->sc_inflight, 1); |
|
| 243 return (0); 244} 245 246/* 247 * The function is called after data encryption. 248 * 249 * g_eli_start -> g_eli_auth_run -> G_ELI_AUTH_WRITE_DONE -> g_io_request -> g_eli_write_done -> g_io_deliver 250 */ --- 20 unchanged lines hidden (view full) --- 271 if (bp->bio_error == 0) 272 bp->bio_error = crp->crp_etype; 273 } 274 /* 275 * All sectors are already encrypted? 276 */ 277 if (bp->bio_inbed < bp->bio_children) 278 return (0); | 244 return (0); 245} 246 247/* 248 * The function is called after data encryption. 249 * 250 * g_eli_start -> g_eli_auth_run -> G_ELI_AUTH_WRITE_DONE -> g_io_request -> g_eli_write_done -> g_io_deliver 251 */ --- 20 unchanged lines hidden (view full) --- 272 if (bp->bio_error == 0) 273 bp->bio_error = crp->crp_etype; 274 } 275 /* 276 * All sectors are already encrypted? 277 */ 278 if (bp->bio_inbed < bp->bio_children) 279 return (0); |
| 280 sc = bp->bio_to->geom->softc; |
|
| 279 if (bp->bio_error != 0) { 280 G_ELI_LOGREQ(0, bp, "Crypto WRITE request failed (error=%d).", 281 bp->bio_error); 282 free(bp->bio_driver2, M_ELI); 283 bp->bio_driver2 = NULL; 284 cbp = bp->bio_driver1; 285 bp->bio_driver1 = NULL; 286 g_destroy_bio(cbp); 287 g_io_deliver(bp, bp->bio_error); | 281 if (bp->bio_error != 0) { 282 G_ELI_LOGREQ(0, bp, "Crypto WRITE request failed (error=%d).", 283 bp->bio_error); 284 free(bp->bio_driver2, M_ELI); 285 bp->bio_driver2 = NULL; 286 cbp = bp->bio_driver1; 287 bp->bio_driver1 = NULL; 288 g_destroy_bio(cbp); 289 g_io_deliver(bp, bp->bio_error); |
| 290 atomic_subtract_int(&sc->sc_inflight, 1); |
|
| 288 return (0); 289 } | 291 return (0); 292 } |
| 290 sc = bp->bio_to->geom->softc; | |
| 291 cp = LIST_FIRST(&sc->sc_geom->consumer); 292 cbp = bp->bio_driver1; 293 bp->bio_driver1 = NULL; 294 cbp->bio_to = cp->provider; 295 cbp->bio_done = g_eli_write_done; 296 297 /* Number of sectors from decrypted provider, eg. 1. */ 298 nsec = bp->bio_length / bp->bio_to->sectorsize; --- 240 unchanged lines hidden --- | 293 cp = LIST_FIRST(&sc->sc_geom->consumer); 294 cbp = bp->bio_driver1; 295 bp->bio_driver1 = NULL; 296 cbp->bio_to = cp->provider; 297 cbp->bio_done = g_eli_write_done; 298 299 /* Number of sectors from decrypted provider, eg. 1. */ 300 nsec = bp->bio_length / bp->bio_to->sectorsize; --- 240 unchanged lines hidden --- |