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Differential D10236 Diff 26933 sys/boot/geli/geliboot.c

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sys/boot/geli/geliboot.c

Show First 20 Lines • Show All 328 Lines • ▼ Show 20 Lines if (geli_same_device(geli_e, dskp) == 0) {
return (0); return (0);
} }
} }
return (1); return (1);
} }
int int
geli_read(struct dsk *dskp, off_t offset, u_char *buf, size_t bytes) geli_io(struct dsk *dskp, int enc, off_t offset, u_char *buf, size_t bytes)
{ {
u_char iv[G_ELI_IVKEYLEN]; u_char iv[G_ELI_IVKEYLEN];
u_char *pbuf; u_char *pbuf;
int error; int error;
off_t dstoff; off_t dstoff;
uint64_t keyno; uint64_t keyno;
size_t n, nsec, secsize; size_t n, nsec, secsize;
struct g_eli_key gkey; struct g_eli_key gkey;
Show All 21 Lines for (n = 0, dstoff = offset; n < nsec; n++, dstoff += secsize) {
g_eli_crypto_ivgen(&geli_e->sc, dstoff, iv, g_eli_crypto_ivgen(&geli_e->sc, dstoff, iv,
G_ELI_IVKEYLEN); G_ELI_IVKEYLEN);
/* Get the key that corresponds to this offset. */ /* Get the key that corresponds to this offset. */
keyno = (dstoff >> G_ELI_KEY_SHIFT) / secsize; keyno = (dstoff >> G_ELI_KEY_SHIFT) / secsize;
g_eli_key_fill(&geli_e->sc, &gkey, keyno); g_eli_key_fill(&geli_e->sc, &gkey, keyno);
error = geliboot_crypt(geli_e->sc.sc_ealgo, 0, pbuf, error = geliboot_crypt(geli_e->sc.sc_ealgo, enc, pbuf,
secsize, gkey.gek_key, secsize, gkey.gek_key,
geli_e->sc.sc_ekeylen, iv); geli_e->sc.sc_ekeylen, iv);
if (error != 0) { if (error != 0) {
explicit_bzero(&gkey, sizeof(gkey)); explicit_bzero(&gkey, sizeof(gkey));
printf("Failed to decrypt in geli_read()!"); printf("Failed to %s in geli_io()!",
enc ? "encrypt" : "decrypt");
return (error); return (error);
} }
pbuf += secsize; pbuf += secsize;
} }
explicit_bzero(&gkey, sizeof(gkey)); explicit_bzero(&gkey, sizeof(gkey));
return (0); return (0);
} }
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