github.com/rdolbeau.SBusFPGA
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aes256 ioctl

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This commit is contained in:
Romain Dolbeau 2021-01-23 09:15:08 -05:00
parent 64ddf0f1c3
commit 60c5f7a767
2 changed files with 18 additions and 0 deletions
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17
NetBSD/9.0/usr/src/sys/dev/sbus/rdfpga.c
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@ -140,6 +140,9 @@ struct rdfpga_128bits {
struct rdfpga_128bits_alt {
uint64_t x[2];
};
struct rdfpga_256bits {
uint64_t x[4];
};
#define RDFPGA_WC _IOW(0, 1, struct rdfpga_128bits)
#define RDFPGA_WH _IOW(0, 2, struct rdfpga_128bits)
@ -148,6 +151,7 @@ struct rdfpga_128bits_alt {
#define RDFPGA_WL _IOW(0, 5, uint32_t)
#define RDFPGA_AESWK _IOW(0, 10, struct rdfpga_128bits)
#define RDFPGA_AESWK256 _IOW(0, 13, struct rdfpga_256bits)
#define RDFPGA_AESWD _IOW(0, 11, struct rdfpga_128bits)
#define RDFPGA_AESRO _IOR(0, 12, struct rdfpga_128bits)
@ -156,6 +160,7 @@ rdfpga_ioctl (dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
{
struct rdfpga_softc *sc = device_lookup_private(&rdfpga_cd, minor(dev));
struct rdfpga_128bits_alt *bits = (struct rdfpga_128bits_alt*)data;
struct rdfpga_256bits *bits256 = (struct rdfpga_256bits*)data;
int err = 0, i;
uint32_t ctrl;
@ -187,6 +192,15 @@ rdfpga_ioctl (dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
for (i = 0 ; i < 2 ; i++)
bus_space_write_8(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_AES128_KEY + (i*8)), bits->x[i] );
sc->aes_key_refresh = 0xFFFF;
sc->aes_key_bits = 0;
break;
case RDFPGA_AESWK256:
if ((err = rdfpga_wait_aes_ready(sc)) != 0)
return err;
for (i = 0 ; i < 4 ; i++)
bus_space_write_8(sc->sc_bustag, sc->sc_bhregs, (RDFPGA_REG_AES128_KEY + (i*8)), bits256->x[i] );
sc->aes_key_refresh = 0xFFFF;
sc->aes_key_bits = 1;
break;
case RDFPGA_AESWD:
if ((err = rdfpga_wait_aes_ready(sc)) != 0)
@ -198,6 +212,9 @@ rdfpga_ioctl (dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
ctrl |= RDFPGA_MASK_AES128_NEWKEY;
sc->aes_key_refresh = 0x8000;
}
if (sc->aes_key_bits == 1) {
ctrl |= RDFPGA_MASK_AES128_AES256;
}
bus_space_write_4(sc->sc_bustag, sc->sc_bhregs, RDFPGA_REG_AES128_CTRL, ctrl);
break;
case RDFPGA_AESRO:

1
NetBSD/9.0/usr/src/sys/dev/sbus/rdfpga.h
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@ -50,6 +50,7 @@ struct rdfpga_softc {
u_int32_t cr_id;
u_int16_t sid;
u_int16_t aes_key_refresh;
u_int8_t aes_key_bits;
struct rdfpga_cryptosession sessions[16];
};