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module: icp: remove other provider types 

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #12901
This commit is contained in:
наб 2021-12-23 19:51:00 +01:00 committed by Brian Behlendorf
parent 167ced3fb1
commit 710657f51d
21 changed files with 236 additions and 1422 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/os/linux/spl/sys/taskq.h
View File

@ -163,8 +163,6 @@ extern taskq_t *taskq_of_curthread(void);
((void) sizeof (dc), \
taskq_create(name, nthreads, maxclsyspri, min, max, flags))
extern boolean_t taskq_empty(taskq_t *);
int spl_taskq_init(void);
void spl_taskq_fini(void);

1
include/sys/crypto/api.h
View File

@ -168,7 +168,6 @@ typedef enum {
/* The event_arg argument structure for CRYPTO_EVENT_PROVIDERS_CHANGE event */
typedef struct crypto_notify_event_change {
crypto_mech_name_t ec_mech_name;
crypto_provider_type_t ec_provider_type;
crypto_event_change_t ec_change;
} crypto_notify_event_change_t;

6
include/sys/crypto/common.h
View File

@ -369,12 +369,6 @@ typedef struct crypto_key32 {
/* Providers */
typedef enum {
CRYPTO_HW_PROVIDER = 0,
CRYPTO_SW_PROVIDER,
CRYPTO_LOGICAL_PROVIDER
} crypto_provider_type_t;
typedef uint32_t crypto_provider_id_t;
#define KCF_PROVID_INVALID ((uint32_t)-1)

1
include/sys/zfs_context.h
View File

@ -509,7 +509,6 @@ extern taskq_t *taskq_of_curthread(void);
extern int taskq_cancel_id(taskq_t *, taskqid_t);
extern void system_taskq_init(void);
extern void system_taskq_fini(void);
extern boolean_t taskq_empty(taskq_t *);
#define XVA_MAPSIZE 3
#define XVA_MAGIC 0x78766174

6
lib/libzpool/taskq.c
View File

@ -363,12 +363,6 @@ taskq_cancel_id(taskq_t *tq, taskqid_t id)
return (ENOENT);
}
boolean_t
taskq_empty(taskq_t *tq)
{
return (tq->tq_task.tqent_next == &tq->tq_task || tq->tq_active == 0);
}
void
system_taskq_init(void)
{

121
module/icp/api/kcf_cipher.c
View File

@ -110,27 +110,9 @@ crypto_cipher_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
if (func == CRYPTO_FG_ENCRYPT) {
error = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_ENCRYPT);
} else {
error = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_DECRYPT);
}
if (error != CRYPTO_SUCCESS)
return (error);
}
/* Allocate and initialize the canonical context */
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) {
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL)
return (CRYPTO_HOST_MEMORY);
}
/* The fast path for SW providers. */
if (CHECK_FASTPATH(crq, pd)) {
@ -153,42 +135,6 @@ crypto_cipher_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
goto done;
}
/* Check if context sharing is possible */
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
key->ck_format == CRYPTO_KEY_RAW &&
KCF_CAN_SHARE_OPSTATE(pd, mech->cm_type)) {
kcf_context_t *tctxp = (kcf_context_t *)ctx;
kcf_provider_desc_t *tpd = NULL;
const crypto_mech_info_t *sinfo;
if ((kcf_get_sw_prov(mech->cm_type, &tpd, &tctxp->kc_mech,
B_FALSE) == CRYPTO_SUCCESS)) {
int tlen;
sinfo = &(KCF_TO_PROV_MECHINFO(tpd, mech->cm_type));
/*
* key->ck_length from the consumer is always in bits.
* We convert it to be in the same unit registered by
* the provider in order to do a comparison.
*/
if (sinfo->cm_mech_flags & CRYPTO_KEYSIZE_UNIT_IN_BYTES)
tlen = key->ck_length >> 3;
else
tlen = key->ck_length;
/*
* Check if the software provider can support context
* sharing and support this key length.
*/
if ((sinfo->cm_mech_flags & CRYPTO_CAN_SHARE_OPSTATE) &&
(tlen >= sinfo->cm_min_key_length) &&
(tlen <= sinfo->cm_max_key_length)) {
ctx->cc_flags = CRYPTO_INIT_OPSTATE;
tctxp->kc_sw_prov_desc = tpd;
} else
KCF_PROV_REFRELE(tpd);
}
}
if (func == CRYPTO_FG_ENCRYPT) {
KCF_WRAP_ENCRYPT_OPS_PARAMS(&params, KCF_OP_INIT, sid,
mech, key, NULL, NULL, tmpl);
@ -200,9 +146,6 @@ crypto_cipher_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
error = kcf_submit_request(real_provider, ctx, crq, &params);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
done:
if ((error == CRYPTO_SUCCESS) || (error == CRYPTO_QUEUED))
*ctxp = (crypto_context_t)ctx;
@ -234,7 +177,7 @@ crypto_cipher_init(crypto_mechanism_t *mech, crypto_key_t *key,
retry:
/* pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
list, func, CHECK_RESTRICT(crq), 0)) == NULL) {
list, func, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
@ -247,8 +190,7 @@ retry:
* freeing this tmpl and create a new one for the key and new SW
* provider
*/
if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
if (list != NULL)
kcf_free_triedlist(list);
@ -321,21 +263,10 @@ crypto_encrypt_prov(crypto_provider_t provider, crypto_session_id_t sid,
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
error = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_ENCRYPT_ATOMIC);
if (error != CRYPTO_SUCCESS)
return (error);
}
KCF_WRAP_ENCRYPT_OPS_PARAMS(&params, KCF_OP_ATOMIC, sid, mech, key,
plaintext, ciphertext, tmpl);
error = kcf_submit_request(real_provider, NULL, crq, &params);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (error);
}
@ -360,22 +291,19 @@ crypto_encrypt(crypto_mechanism_t *mech, crypto_data_t *plaintext,
retry:
/* pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
list, CRYPTO_FG_ENCRYPT_ATOMIC, CHECK_RESTRICT(crq),
plaintext->cd_length)) == NULL) {
list, CRYPTO_FG_ENCRYPT_ATOMIC, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
}
/*
* For SW providers, check the validity of the context template
* Check the validity of the context template
* It is very rare that the generation number mis-matches, so
* is acceptable to fail here, and let the consumer recover by
* freeing this tmpl and create a new one for the key and new SW
* provider
* freeing this tmpl and create a new one for the key and new provider
*/
if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
if (list != NULL)
kcf_free_triedlist(list);
@ -480,8 +408,6 @@ crypto_encrypt_update(crypto_context_t context, crypto_data_t *plaintext,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
error = KCF_PROV_ENCRYPT_UPDATE(pd, ctx, plaintext,
@ -540,8 +466,6 @@ crypto_encrypt_final(crypto_context_t context, crypto_data_t *ciphertext,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
error = KCF_PROV_ENCRYPT_FINAL(pd, ctx, ciphertext, NULL);
@ -599,27 +523,13 @@ crypto_decrypt_prov(crypto_provider_t provider, crypto_session_id_t sid,
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_DECRYPT_ATOMIC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
KCF_WRAP_DECRYPT_OPS_PARAMS(&params, KCF_OP_ATOMIC, sid, mech, key,
ciphertext, plaintext, tmpl);
rv = kcf_submit_request(real_provider, NULL, crq, &params);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
return (kcf_submit_request(real_provider, NULL, crq, &params));
}
/*
@ -643,22 +553,19 @@ crypto_decrypt(crypto_mechanism_t *mech, crypto_data_t *ciphertext,
retry:
/* pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
list, CRYPTO_FG_DECRYPT_ATOMIC, CHECK_RESTRICT(crq),
ciphertext->cd_length)) == NULL) {
list, CRYPTO_FG_DECRYPT_ATOMIC, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
}
/*
* For SW providers, check the validity of the context template
* Check the validity of the context template
* It is very rare that the generation number mis-matches, so
* is acceptable to fail here, and let the consumer recover by
* freeing this tmpl and create a new one for the key and new SW
* provider
* freeing this tmpl and create a new one for the key and new provider
*/
if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
if (list != NULL)
kcf_free_triedlist(list);
@ -763,8 +670,6 @@ crypto_decrypt_update(crypto_context_t context, crypto_data_t *ciphertext,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
error = KCF_PROV_DECRYPT_UPDATE(pd, ctx, ciphertext,
@ -823,8 +728,6 @@ crypto_decrypt_final(crypto_context_t context, crypto_data_t *plaintext,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
error = KCF_PROV_DECRYPT_FINAL(pd, ctx, plaintext,

72
module/icp/api/kcf_digest.c
View File

@ -93,27 +93,14 @@ crypto_digest_prov(crypto_provider_t provider, crypto_session_id_t sid,
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq),
pd, &real_provider, CRYPTO_FG_DIGEST_ATOMIC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
KCF_WRAP_DIGEST_OPS_PARAMS(&params, KCF_OP_ATOMIC, sid, mech, NULL,
data, digest);
/* no crypto context to carry between multiple parts. */
rv = kcf_submit_request(real_provider, NULL, crq, &params);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
return (kcf_submit_request(real_provider, NULL, crq, &params));
}
@ -133,8 +120,7 @@ crypto_digest(crypto_mechanism_t *mech, crypto_data_t *data,
retry:
/* The pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, NULL, &error, list,
CRYPTO_FG_DIGEST_ATOMIC, CHECK_RESTRICT(crq),
data->cd_length)) == NULL) {
CRYPTO_FG_DIGEST_ATOMIC, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
@ -150,17 +136,11 @@ retry:
digest, KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, error);
} else {
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
(pd->pd_flags & CRYPTO_HASH_NO_UPDATE) &&
(data->cd_length > pd->pd_hash_limit)) {
error = CRYPTO_BUFFER_TOO_BIG;
} else {
KCF_WRAP_DIGEST_OPS_PARAMS(&params, KCF_OP_ATOMIC,
pd->pd_sid, mech, NULL, data, digest);
KCF_WRAP_DIGEST_OPS_PARAMS(&params, KCF_OP_ATOMIC,
pd->pd_sid, mech, NULL, data, digest);
/* no crypto context to carry between multiple parts. */
error = kcf_submit_request(pd, NULL, crq, &params);
}
/* no crypto context to carry between multiple parts. */
error = kcf_submit_request(pd, NULL, crq, &params);
}
if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
@ -212,21 +192,9 @@ crypto_digest_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
error = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_DIGEST);
if (error != CRYPTO_SUCCESS)
return (error);
}
/* Allocate and initialize the canonical context */
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) {
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL)
return (CRYPTO_HOST_MEMORY);
}
/* The fast path for SW providers. */
if (CHECK_FASTPATH(crq, pd)) {
@ -243,9 +211,6 @@ crypto_digest_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
error = kcf_submit_request(real_provider, ctx, crq, &params);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((error == CRYPTO_SUCCESS) || (error == CRYPTO_QUEUED))
*ctxp = (crypto_context_t)ctx;
else {
@ -272,27 +237,14 @@ crypto_digest_init(crypto_mechanism_t *mech, crypto_context_t *ctxp,
retry:
/* The pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, NULL, &error,
list, CRYPTO_FG_DIGEST, CHECK_RESTRICT(crq), 0)) == NULL) {
list, CRYPTO_FG_DIGEST, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
}
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
(pd->pd_flags & CRYPTO_HASH_NO_UPDATE)) {
/*
* The hardware provider has limited digest support.
* So, we fallback early here to using a software provider.
*
* XXX - need to enhance to do the fallback later in
* crypto_digest_update() if the size of accumulated input data
* exceeds the maximum size digestable by hardware provider.
*/
error = CRYPTO_BUFFER_TOO_BIG;
} else {
error = crypto_digest_init_prov(pd, pd->pd_sid,
mech, ctxp, crq);
}
error = crypto_digest_init_prov(pd, pd->pd_sid,
mech, ctxp, crq);
if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
IS_RECOVERABLE(error)) {
@ -341,8 +293,6 @@ crypto_digest_update(crypto_context_t context, crypto_data_t *data,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
error = KCF_PROV_DIGEST_UPDATE(pd, ctx, data, NULL);
@ -390,8 +340,6 @@ crypto_digest_final(crypto_context_t context, crypto_data_t *digest,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
error = KCF_PROV_DIGEST_FINAL(pd, ctx, digest, NULL);

129
module/icp/api/kcf_mac.c
View File

@ -98,20 +98,9 @@ crypto_mac_prov(crypto_provider_t provider, crypto_session_id_t sid,
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_MAC_ATOMIC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_ATOMIC, sid, mech, key,
data, mac, tmpl);
rv = kcf_submit_request(real_provider, NULL, crq, &params);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
}
@ -136,22 +125,19 @@ crypto_mac(crypto_mechanism_t *mech, crypto_data_t *data,
retry:
/* The pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq),
data->cd_length)) == NULL) {
list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
}
/*
* For SW providers, check the validity of the context template
* Check the validity of the context template
* It is very rare that the generation number mis-matches, so
* is acceptable to fail here, and let the consumer recover by
* freeing this tmpl and create a new one for the key and new SW
* provider
* freeing this tmpl and create a new one for the key and new provider
*/
if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
if (list != NULL)
kcf_free_triedlist(list);
@ -173,22 +159,10 @@ retry:
mac, spi_ctx_tmpl, KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, error);
} else {
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
(pd->pd_flags & CRYPTO_HASH_NO_UPDATE) &&
(data->cd_length > pd->pd_hash_limit)) {
/*
* XXX - We need a check to see if this is indeed
* a HMAC. So far, all kernel clients use
* this interface only for HMAC. So, this is fine
* for now.
*/
error = CRYPTO_BUFFER_TOO_BIG;
} else {
KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_ATOMIC,
pd->pd_sid, mech, key, data, mac, spi_ctx_tmpl);
KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_ATOMIC,
pd->pd_sid, mech, key, data, mac, spi_ctx_tmpl);
error = kcf_submit_request(pd, NULL, crq, &params);
}
error = kcf_submit_request(pd, NULL, crq, &params);
}
if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
@ -218,26 +192,13 @@ crypto_mac_verify_prov(crypto_provider_t provider, crypto_session_id_t sid,
kcf_req_params_t params;
kcf_provider_desc_t *pd = provider;
kcf_provider_desc_t *real_provider = pd;
int rv;
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_MAC_ATOMIC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
KCF_WRAP_MAC_OPS_PARAMS(&params, KCF_OP_MAC_VERIFY_ATOMIC, sid, mech,
key, data, mac, tmpl);
rv = kcf_submit_request(real_provider, NULL, crq, &params);
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
return (rv);
return (kcf_submit_request(real_provider, NULL, crq, &params));
}
/*
@ -260,22 +221,19 @@ crypto_mac_verify(crypto_mechanism_t *mech, crypto_data_t *data,
retry:
/* The pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq),
data->cd_length)) == NULL) {
list, CRYPTO_FG_MAC_ATOMIC, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
}
/*
* For SW providers, check the validity of the context template
* Check the validity of the context template
* It is very rare that the generation number mis-matches, so
* is acceptable to fail here, and let the consumer recover by
* freeing this tmpl and create a new one for the key and new SW
* provider
* freeing this tmpl and create a new one for the key and new provider
*/
if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
if (list != NULL)
kcf_free_triedlist(list);
@ -297,18 +255,11 @@ retry:
data, mac, spi_ctx_tmpl, KCF_SWFP_RHNDL(crq));
KCF_PROV_INCRSTATS(pd, error);
} else {
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
(pd->pd_flags & CRYPTO_HASH_NO_UPDATE) &&
(data->cd_length > pd->pd_hash_limit)) {
/* see comments in crypto_mac() */
error = CRYPTO_BUFFER_TOO_BIG;
} else {
KCF_WRAP_MAC_OPS_PARAMS(&params,
KCF_OP_MAC_VERIFY_ATOMIC, pd->pd_sid, mech,
key, data, mac, spi_ctx_tmpl);
KCF_WRAP_MAC_OPS_PARAMS(&params,
KCF_OP_MAC_VERIFY_ATOMIC, pd->pd_sid, mech,
key, data, mac, spi_ctx_tmpl);
error = kcf_submit_request(pd, NULL, crq, &params);
}
error = kcf_submit_request(pd, NULL, crq, &params);
}
if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
@ -374,21 +325,9 @@ crypto_mac_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
ASSERT(KCF_PROV_REFHELD(pd));
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
rv = kcf_get_hardware_provider(mech->cm_type,
CRYPTO_MECH_INVALID, CHECK_RESTRICT(crq), pd,
&real_provider, CRYPTO_FG_MAC);
if (rv != CRYPTO_SUCCESS)
return (rv);
}
/* Allocate and initialize the canonical context */
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL) {
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((ctx = kcf_new_ctx(crq, real_provider, sid)) == NULL)
return (CRYPTO_HOST_MEMORY);
}
/* The fast path for SW providers. */
if (CHECK_FASTPATH(crq, pd)) {
@ -405,9 +344,6 @@ crypto_mac_init_prov(crypto_provider_t provider, crypto_session_id_t sid,
rv = kcf_submit_request(real_provider, ctx, crq, &params);
}
if (pd->pd_prov_type == CRYPTO_LOGICAL_PROVIDER)
KCF_PROV_REFRELE(real_provider);
if ((rv == CRYPTO_SUCCESS) || (rv == CRYPTO_QUEUED))
*ctxp = (crypto_context_t)ctx;
else {
@ -438,22 +374,20 @@ crypto_mac_init(crypto_mechanism_t *mech, crypto_key_t *key,
retry:
/* The pd is returned held */
if ((pd = kcf_get_mech_provider(mech->cm_type, &me, &error,
list, CRYPTO_FG_MAC, CHECK_RESTRICT(crq), 0)) == NULL) {
list, CRYPTO_FG_MAC, CHECK_RESTRICT(crq))) == NULL) {
if (list != NULL)
kcf_free_triedlist(list);
return (error);
}
/*
* For SW providers, check the validity of the context template
* Check the validity of the context template
* It is very rare that the generation number mis-matches, so
* is acceptable to fail here, and let the consumer recover by
* freeing this tmpl and create a new one for the key and new SW
* provider
* freeing this tmpl and create a new one for the key and new provider
*/
if ((pd->pd_prov_type == CRYPTO_SW_PROVIDER) &&
((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (((ctx_tmpl = (kcf_ctx_template_t *)tmpl) != NULL)) {
if (ctx_tmpl->ct_generation != me->me_gen_swprov) {
if (list != NULL)
kcf_free_triedlist(list);
@ -464,21 +398,8 @@ retry:
}
}
if (pd->pd_prov_type == CRYPTO_HW_PROVIDER &&
(pd->pd_flags & CRYPTO_HASH_NO_UPDATE)) {
/*
* The hardware provider has limited HMAC support.
* So, we fallback early here to using a software provider.
*
* XXX - need to enhance to do the fallback later in
* crypto_mac_update() if the size of accumulated input data
* exceeds the maximum size digestable by hardware provider.
*/
error = CRYPTO_BUFFER_TOO_BIG;
} else {
error = crypto_mac_init_prov(pd, pd->pd_sid, mech, key,
spi_ctx_tmpl, ctxp, crq);
}
error = crypto_mac_init_prov(pd, pd->pd_sid, mech, key,
spi_ctx_tmpl, ctxp, crq);
if (error != CRYPTO_SUCCESS && error != CRYPTO_QUEUED &&
IS_RECOVERABLE(error)) {
/* Add pd to the linked list of providers tried. */
@ -527,8 +448,6 @@ crypto_mac_update(crypto_context_t context, crypto_data_t *data,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
rv = KCF_PROV_MAC_UPDATE(pd, ctx, data, NULL);
@ -576,8 +495,6 @@ crypto_mac_final(crypto_context_t context, crypto_data_t *mac,
return (CRYPTO_INVALID_CONTEXT);
}
ASSERT(pd->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* The fast path for SW providers. */
if (CHECK_FASTPATH(cr, pd)) {
rv = KCF_PROV_MAC_FINAL(pd, ctx, mac, NULL);

4
module/icp/api/kcf_miscapi.c
View File

@ -50,8 +50,8 @@ static kcf_ntfy_elem_t *ntfy_list_head;
* Description:
* Walks the mechanisms tables, looking for an entry that matches the
* mechname. Once it find it, it builds the 64-bit mech_type and returns
* it. If there are no hardware or software providers for the mechanism,
* but there is an unloaded software provider, this routine will attempt
* it. If there are no providers for the mechanism,
* but there is an unloaded provider, this routine will attempt
* to load it.
*
* Context:

214
module/icp/core/kcf_callprov.c
View File

@ -68,168 +68,6 @@ is_in_triedlist(kcf_provider_desc_t *pd, kcf_prov_tried_t *triedl)
return (B_FALSE);
}
/*
* Search a mech entry's hardware provider list for the specified
* provider. Return true if found.
*/
static boolean_t
is_valid_provider_for_mech(kcf_provider_desc_t *pd, kcf_mech_entry_t *me,
crypto_func_group_t fg)
{
kcf_prov_mech_desc_t *prov_chain;
prov_chain = me->me_hw_prov_chain;
if (prov_chain != NULL) {
ASSERT(me->me_num_hwprov > 0);
for (; prov_chain != NULL; prov_chain = prov_chain->pm_next) {
if (prov_chain->pm_prov_desc == pd &&
IS_FG_SUPPORTED(prov_chain, fg)) {
return (B_TRUE);
}
}
}
return (B_FALSE);
}
/*
* This routine, given a logical provider, returns the least loaded
* provider belonging to the logical provider. The provider must be
* able to do the specified mechanism, i.e. check that the mechanism
* hasn't been disabled. In addition, just in case providers are not
* entirely equivalent, the provider's entry point is checked for
* non-nullness. This is accomplished by having the caller pass, as
* arguments, the offset of the function group (offset_1), and the
* offset of the function within the function group (offset_2).
* Returns NULL if no provider can be found.
*/
int
kcf_get_hardware_provider(crypto_mech_type_t mech_type_1,
crypto_mech_type_t mech_type_2, boolean_t call_restrict,
kcf_provider_desc_t *old, kcf_provider_desc_t **new, crypto_func_group_t fg)
{
kcf_provider_desc_t *provider, *real_pd = old;
kcf_provider_desc_t *gpd = NULL; /* good provider */
kcf_provider_desc_t *bpd = NULL; /* busy provider */
kcf_provider_list_t *p;
kcf_ops_class_t class;
kcf_mech_entry_t *me;
const kcf_mech_entry_tab_t *me_tab;
int index, len, gqlen = INT_MAX, rv = CRYPTO_SUCCESS;
/* get the mech entry for the specified mechanism */
class = KCF_MECH2CLASS(mech_type_1);
if ((class < KCF_FIRST_OPSCLASS) || (class > KCF_LAST_OPSCLASS)) {
return (CRYPTO_MECHANISM_INVALID);
}
me_tab = &kcf_mech_tabs_tab[class];
index = KCF_MECH2INDEX(mech_type_1);
if ((index < 0) || (index >= me_tab->met_size)) {
return (CRYPTO_MECHANISM_INVALID);
}
me = &((me_tab->met_tab)[index]);
mutex_enter(&me->me_mutex);
/*
* We assume the provider descriptor will not go away because
* it is being held somewhere, i.e. its reference count has been
* incremented. In the case of the crypto module, the provider
* descriptor is held by the session structure.
*/
if (old->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
if (old->pd_provider_list == NULL) {
real_pd = NULL;
rv = CRYPTO_DEVICE_ERROR;
goto out;
}
/*
* Find the least loaded real provider. KCF_PROV_LOAD gives
* the load (number of pending requests) of the provider.
*/
mutex_enter(&old->pd_lock);
p = old->pd_provider_list;
while (p != NULL) {
provider = p->pl_provider;
ASSERT(provider->pd_prov_type !=
CRYPTO_LOGICAL_PROVIDER);
if (call_restrict &&
(provider->pd_flags & KCF_PROV_RESTRICTED)) {
p = p->pl_next;
continue;
}
if (!is_valid_provider_for_mech(provider, me, fg)) {
p = p->pl_next;
continue;
}
/* provider does second mech */
if (mech_type_2 != CRYPTO_MECH_INVALID) {
int i;
i = KCF_TO_PROV_MECH_INDX(provider,
mech_type_2);
if (i == KCF_INVALID_INDX) {
p = p->pl_next;
continue;
}
}
if (provider->pd_state != KCF_PROV_READY) {
/* choose BUSY if no READY providers */
if (provider->pd_state == KCF_PROV_BUSY)
bpd = provider;
p = p->pl_next;
continue;
}
len = KCF_PROV_LOAD(provider);
if (len < gqlen) {
gqlen = len;
gpd = provider;
}
p = p->pl_next;
}
if (gpd != NULL) {
real_pd = gpd;
KCF_PROV_REFHOLD(real_pd);
} else if (bpd != NULL) {
real_pd = bpd;
KCF_PROV_REFHOLD(real_pd);
} else {
/* can't find provider */
real_pd = NULL;
rv = CRYPTO_MECHANISM_INVALID;
}
mutex_exit(&old->pd_lock);
} else {
if (!KCF_IS_PROV_USABLE(old) ||
(call_restrict && (old->pd_flags & KCF_PROV_RESTRICTED))) {
real_pd = NULL;
rv = CRYPTO_DEVICE_ERROR;
goto out;
}
if (!is_valid_provider_for_mech(old, me, fg)) {
real_pd = NULL;
rv = CRYPTO_MECHANISM_INVALID;
goto out;
}
KCF_PROV_REFHOLD(real_pd);
}
out:
mutex_exit(&me->me_mutex);
*new = real_pd;
return (rv);
}
/*
* Return the best provider for the specified mechanism. The provider
* is held and it is the caller's responsibility to release it when done.
@ -247,11 +85,10 @@ out:
kcf_provider_desc_t *
kcf_get_mech_provider(crypto_mech_type_t mech_type, kcf_mech_entry_t **mepp,
int *error, kcf_prov_tried_t *triedl, crypto_func_group_t fg,
boolean_t call_restrict, size_t data_size)
boolean_t call_restrict)
{
kcf_provider_desc_t *pd = NULL, *gpd = NULL;
kcf_prov_mech_desc_t *prov_chain, *mdesc;
int len, gqlen = INT_MAX;
kcf_provider_desc_t *pd = NULL;
kcf_prov_mech_desc_t *mdesc;
kcf_ops_class_t class;
int index;
kcf_mech_entry_t *me;
@ -276,50 +113,7 @@ kcf_get_mech_provider(crypto_mech_type_t mech_type, kcf_mech_entry_t **mepp,
mutex_enter(&me->me_mutex);
prov_chain = me->me_hw_prov_chain;
/*
* We check for the threshold for using a hardware provider for
* this amount of data. If there is no software provider available
* for the mechanism, then the threshold is ignored.
*/
if ((prov_chain != NULL) &&
((data_size == 0) || (me->me_threshold == 0) ||
(data_size >= me->me_threshold) ||
((mdesc = me->me_sw_prov) == NULL) ||
(!IS_FG_SUPPORTED(mdesc, fg)) ||
(!KCF_IS_PROV_USABLE(mdesc->pm_prov_desc)))) {
ASSERT(me->me_num_hwprov > 0);
/* there is at least one provider */
/*
* Find the least loaded real provider. KCF_PROV_LOAD gives
* the load (number of pending requests) of the provider.
*/
while (prov_chain != NULL) {
pd = prov_chain->pm_prov_desc;
if (!IS_FG_SUPPORTED(prov_chain, fg) ||
!KCF_IS_PROV_USABLE(pd) ||
IS_PROVIDER_TRIED(pd, triedl) ||
(call_restrict &&
(pd->pd_flags & KCF_PROV_RESTRICTED))) {
prov_chain = prov_chain->pm_next;
continue;
}
if ((len = KCF_PROV_LOAD(pd)) < gqlen) {
gqlen = len;
gpd = pd;
}
prov_chain = prov_chain->pm_next;
}
pd = gpd;
}
/* No HW provider for this mech, is there a SW provider? */
/* Is there a provider? */
if (pd == NULL && (mdesc = me->me_sw_prov) != NULL) {
pd = mdesc->pm_prov_desc;
if (!IS_FG_SUPPORTED(mdesc, fg) ||

162
module/icp/core/kcf_mech_tabs.c
View File

@ -369,8 +369,6 @@ kcf_add_mech_provider(short mech_indx,
crypto_mech_type_t kcf_mech_type;
kcf_prov_mech_desc_t *prov_mech;
ASSERT(prov_desc->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
mech_info = &prov_desc->pd_mechanisms[mech_indx];
/*
@ -425,50 +423,34 @@ kcf_add_mech_provider(short mech_indx,
* Add new kcf_prov_mech_desc at the front of HW providers
* chain.
*/
switch (prov_desc->pd_prov_type) {
mutex_enter(&mech_entry->me_mutex);
if (mech_entry->me_sw_prov != NULL) {
/*
* There is already a provider for this mechanism.
* Since we allow only one provider per mechanism,
* report this condition.
*/
cmn_err(CE_WARN, "The cryptographic provider "
"\"%s\" will not be used for %s. The provider "
"\"%s\" will be used for this mechanism "
"instead.", prov_desc->pd_description,
mech_info->cm_mech_name,
mech_entry->me_sw_prov->pm_prov_desc->
pd_description);
KCF_PROV_REFRELE(prov_desc);
kmem_free(prov_mech, sizeof (kcf_prov_mech_desc_t));
prov_mech = NULL;
} else {
/*
* Set the provider as the provider for
* this mechanism.
*/
mech_entry->me_sw_prov = prov_mech;
case CRYPTO_HW_PROVIDER:
mutex_enter(&mech_entry->me_mutex);
prov_mech->pm_me = mech_entry;
prov_mech->pm_next = mech_entry->me_hw_prov_chain;
mech_entry->me_hw_prov_chain = prov_mech;
mech_entry->me_num_hwprov++;
mutex_exit(&mech_entry->me_mutex);
break;
case CRYPTO_SW_PROVIDER:
mutex_enter(&mech_entry->me_mutex);
if (mech_entry->me_sw_prov != NULL) {
/*
* There is already a SW provider for this mechanism.
* Since we allow only one SW provider per mechanism,
* report this condition.
*/
cmn_err(CE_WARN, "The cryptographic software provider "
"\"%s\" will not be used for %s. The provider "
"\"%s\" will be used for this mechanism "
"instead.", prov_desc->pd_description,
mech_info->cm_mech_name,
mech_entry->me_sw_prov->pm_prov_desc->
pd_description);
KCF_PROV_REFRELE(prov_desc);
kmem_free(prov_mech, sizeof (kcf_prov_mech_desc_t));
prov_mech = NULL;
} else {
/*
* Set the provider as the software provider for
* this mechanism.
*/
mech_entry->me_sw_prov = prov_mech;
/* We'll wrap around after 4 billion registrations! */
mech_entry->me_gen_swprov = kcf_gen_swprov++;
}
mutex_exit(&mech_entry->me_mutex);
break;
default:
break;
/* We'll wrap around after 4 billion registrations! */
mech_entry->me_gen_swprov = kcf_gen_swprov++;
}
mutex_exit(&mech_entry->me_mutex);
*pmdpp = prov_mech;
@ -494,12 +476,8 @@ void
kcf_remove_mech_provider(const char *mech_name, kcf_provider_desc_t *prov_desc)
{
crypto_mech_type_t mech_type;
kcf_prov_mech_desc_t *prov_mech = NULL, *prov_chain;
kcf_prov_mech_desc_t **prev_entry_next;
kcf_prov_mech_desc_t *prov_mech = NULL;
kcf_mech_entry_t *mech_entry;
crypto_mech_info_list_t *mil, *mil2, *next, **prev_next;
ASSERT(prov_desc->pd_prov_type != CRYPTO_LOGICAL_PROVIDER);
/* get the KCF mech type that was assigned to the mechanism */
if ((mech_type = kcf_mech_hash_find(mech_name)) ==
@ -521,88 +499,16 @@ kcf_remove_mech_provider(const char *mech_name, kcf_provider_desc_t *prov_desc)
}
mutex_enter(&mech_entry->me_mutex);
switch (prov_desc->pd_prov_type) {
case CRYPTO_HW_PROVIDER:
/* find the provider in the mech_entry chain */
prev_entry_next = &mech_entry->me_hw_prov_chain;
prov_mech = mech_entry->me_hw_prov_chain;
while (prov_mech != NULL &&
prov_mech->pm_prov_desc != prov_desc) {
prev_entry_next = &prov_mech->pm_next;
prov_mech = prov_mech->pm_next;
}
if (prov_mech == NULL) {
/* entry not found, simply return */
mutex_exit(&mech_entry->me_mutex);
return;
}
/* remove provider entry from mech_entry chain */
*prev_entry_next = prov_mech->pm_next;
ASSERT(mech_entry->me_num_hwprov > 0);
mech_entry->me_num_hwprov--;
break;
case CRYPTO_SW_PROVIDER:
if (mech_entry->me_sw_prov == NULL ||
mech_entry->me_sw_prov->pm_prov_desc != prov_desc) {
/* not the software provider for this mechanism */
mutex_exit(&mech_entry->me_mutex);
return;
}
prov_mech = mech_entry->me_sw_prov;
mech_entry->me_sw_prov = NULL;
break;
default:
/* unexpected crypto_provider_type_t */
if (mech_entry->me_sw_prov == NULL ||
mech_entry->me_sw_prov->pm_prov_desc != prov_desc) {
/* not the provider for this mechanism */
mutex_exit(&mech_entry->me_mutex);
return;
}
prov_mech = mech_entry->me_sw_prov;
mech_entry->me_sw_prov = NULL;
mutex_exit(&mech_entry->me_mutex);
/* Free the dual ops cross-reference lists */
mil = prov_mech->pm_mi_list;
while (mil != NULL) {
next = mil->ml_next;
if (kcf_get_mech_entry(mil->ml_kcf_mechid,
&mech_entry) != KCF_SUCCESS) {
mil = next;
continue;
}
mutex_enter(&mech_entry->me_mutex);
if (prov_desc->pd_prov_type == CRYPTO_HW_PROVIDER)
prov_chain = mech_entry->me_hw_prov_chain;
else
prov_chain = mech_entry->me_sw_prov;
while (prov_chain != NULL) {
if (prov_chain->pm_prov_desc == prov_desc) {
prev_next = &prov_chain->pm_mi_list;
mil2 = prov_chain->pm_mi_list;
while (mil2 != NULL &&
mil2->ml_kcf_mechid != mech_type) {
prev_next = &mil2->ml_next;
mil2 = mil2->ml_next;
}
if (mil2 != NULL) {
*prev_next = mil2->ml_next;
kmem_free(mil2, sizeof (*mil2));
}
break;
}
prov_chain = prov_chain->pm_next;
}
mutex_exit(&mech_entry->me_mutex);
kmem_free(mil, sizeof (crypto_mech_info_list_t));
mil = next;
}
/* free entry */
KCF_PROV_REFRELE(prov_mech->pm_prov_desc);
KCF_PROV_IREFRELE(prov_mech->pm_prov_desc);
@ -656,8 +562,8 @@ kcf_get_mech_entry(crypto_mech_type_t mech_type, kcf_mech_entry_t **mep)
/*
* Lookup the hash table for an entry that matches the mechname.
* If there are no hardware or software providers for the mechanism,
* but there is an unloaded software provider, this routine will attempt
* If there are no providers for the mechanism,
* but there is an unloaded provider, this routine will attempt
* to load it.
*/
crypto_mech_type_t

37
module/icp/core/kcf_prov_tabs.c
View File

@ -201,7 +201,7 @@ kcf_prov_tab_lookup(crypto_provider_id_t prov_id)
* since it is invoked from user context during provider registration.
*/
kcf_provider_desc_t *
kcf_alloc_provider_desc(const crypto_provider_info_t *info)
kcf_alloc_provider_desc(void)
{
kcf_provider_desc_t *desc =
kmem_zalloc(sizeof (kcf_provider_desc_t), KM_SLEEP);
@ -223,7 +223,7 @@ kcf_alloc_provider_desc(const crypto_provider_info_t *info)
/*
* Called by KCF_PROV_REFRELE when a provider's reference count drops
* to zero. We free the descriptor when the last reference is released.
* However, for software providers, we do not free it when there is an
* However, for providers, we do not free it when there is an
* unregister thread waiting. We signal that thread in this case and
* that thread is responsible for freeing the descriptor.
*/
@ -231,22 +231,16 @@ void
kcf_provider_zero_refcnt(kcf_provider_desc_t *desc)
{
mutex_enter(&desc->pd_lock);
switch (desc->pd_prov_type) {
case CRYPTO_SW_PROVIDER:
if (desc->pd_state == KCF_PROV_REMOVED ||
desc->pd_state == KCF_PROV_DISABLED) {
desc->pd_state = KCF_PROV_FREED;
cv_broadcast(&desc->pd_remove_cv);
mutex_exit(&desc->pd_lock);
break;
}
zfs_fallthrough;
case CRYPTO_HW_PROVIDER:
case CRYPTO_LOGICAL_PROVIDER:
if (desc->pd_state == KCF_PROV_REMOVED ||
desc->pd_state == KCF_PROV_DISABLED) {
desc->pd_state = KCF_PROV_FREED;
cv_broadcast(&desc->pd_remove_cv);
mutex_exit(&desc->pd_lock);
kcf_free_provider_desc(desc);
return;
}
mutex_exit(&desc->pd_lock);
kcf_free_provider_desc(desc);
}
/*
@ -269,9 +263,6 @@ kcf_free_provider_desc(kcf_provider_desc_t *desc)
/* free the kernel memory associated with the provider descriptor */
if (desc->pd_sched_info.ks_taskq != NULL)
taskq_destroy(desc->pd_sched_info.ks_taskq);
mutex_destroy(&desc->pd_lock);
cv_destroy(&desc->pd_resume_cv);
cv_destroy(&desc->pd_remove_cv);
@ -281,7 +272,7 @@ kcf_free_provider_desc(kcf_provider_desc_t *desc)
/*
* Returns in the location pointed to by pd a pointer to the descriptor
* for the software provider for the specified mechanism.
* for the provider for the specified mechanism.
* The provider descriptor is returned held and it is the caller's
* responsibility to release it when done. The mechanism entry
* is returned if the optional argument mep is non NULL.
@ -300,16 +291,16 @@ kcf_get_sw_prov(crypto_mech_type_t mech_type, kcf_provider_desc_t **pd,
return (CRYPTO_MECHANISM_INVALID);
/*
* Get the software provider for this mechanism.
* Get the provider for this mechanism.
* Lock the mech_entry until we grab the 'pd'.
*/
mutex_enter(&me->me_mutex);
if (me->me_sw_prov == NULL ||
(*pd = me->me_sw_prov->pm_prov_desc) == NULL) {
/* no SW provider for this mechanism */
/* no provider for this mechanism */
if (log_warn)
cmn_err(CE_WARN, "no SW provider for \"%s\"\n",
cmn_err(CE_WARN, "no provider for \"%s\"\n",
me->me_name);
mutex_exit(&me->me_mutex);
return (CRYPTO_MECH_NOT_SUPPORTED);

354
module/icp/core/kcf_sched.c
View File

@ -35,7 +35,7 @@
#include <sys/crypto/sched_impl.h>
#include <sys/crypto/api.h>
static kcf_global_swq_t *gswq; /* Global software queue */
static kcf_global_swq_t *gswq; /* Global queue */
/* Thread pool related variables */
static kcf_pool_t *kcfpool; /* Thread pool of kcfd LWPs */
@ -58,16 +58,13 @@ static kcf_stats_t kcf_ksdata = {
{ "max threads in pool", KSTAT_DATA_UINT32},
{ "requests in gswq", KSTAT_DATA_UINT32},
{ "max requests in gswq", KSTAT_DATA_UINT32},
{ "threads for HW taskq", KSTAT_DATA_UINT32},
{ "minalloc for HW taskq", KSTAT_DATA_UINT32},
{ "maxalloc for HW taskq", KSTAT_DATA_UINT32}
{ "maxalloc for gwsq", KSTAT_DATA_UINT32}
};
static kstat_t *kcf_misc_kstat = NULL;
ulong_t kcf_swprov_hndl = 0;
static int kcf_disp_sw_request(kcf_areq_node_t *);
static void process_req_hwp(void *);
static int kcf_enqueue(kcf_areq_node_t *);
static void kcfpool_alloc(void);
static void kcf_reqid_delete(kcf_areq_node_t *areq);
@ -224,118 +221,6 @@ kcf_disp_sw_request(kcf_areq_node_t *areq)
return (CRYPTO_QUEUED);
}
/*
* This routine is called by the taskq associated with
* each hardware provider. We notify the kernel consumer
* via the callback routine in case of CRYPTO_SUCCESS or
* a failure.
*
* A request can be of type kcf_areq_node_t or of type
* kcf_sreq_node_t.
*/
static void
process_req_hwp(void *ireq)
{
int error = 0;
crypto_ctx_t *ctx;
kcf_call_type_t ctype;
kcf_provider_desc_t *pd;
kcf_areq_node_t *areq = (kcf_areq_node_t *)ireq;
kcf_sreq_node_t *sreq = (kcf_sreq_node_t *)ireq;
pd = ((ctype = GET_REQ_TYPE(ireq)) == CRYPTO_SYNCH) ?
sreq->sn_provider : areq->an_provider;
/*
* Wait if flow control is in effect for the provider. A
* CRYPTO_PROVIDER_READY or CRYPTO_PROVIDER_FAILED
* notification will signal us. We also get signaled if
* the provider is unregistering.
*/
if (pd->pd_state == KCF_PROV_BUSY) {
mutex_enter(&pd->pd_lock);
while (pd->pd_state == KCF_PROV_BUSY)
cv_wait(&pd->pd_resume_cv, &pd->pd_lock);
mutex_exit(&pd->pd_lock);
}
/*
* Bump the internal reference count while the request is being
* processed. This is how we know when it's safe to unregister
* a provider. This step must precede the pd_state check below.
*/
KCF_PROV_IREFHOLD(pd);
/*
* Fail the request if the provider has failed. We return a
* recoverable error and the notified clients attempt any
* recovery. For async clients this is done in kcf_aop_done()
* and for sync clients it is done in the k-api routines.
*/
if (pd->pd_state >= KCF_PROV_FAILED) {
error = CRYPTO_DEVICE_ERROR;
goto bail;
}
if (ctype == CRYPTO_SYNCH) {
mutex_enter(&sreq->sn_lock);
sreq->sn_state = REQ_INPROGRESS;
mutex_exit(&sreq->sn_lock);
ctx = sreq->sn_context ? &sreq->sn_context->kc_glbl_ctx : NULL;
error = common_submit_request(sreq->sn_provider, ctx,
sreq->sn_params, sreq);
} else {
kcf_context_t *ictx;
ASSERT(ctype == CRYPTO_ASYNCH);
/*
* We are in the per-hardware provider thread context and
* hence can sleep. Note that the caller would have done
* a taskq_dispatch(..., TQ_NOSLEEP) and would have returned.
*/
ctx = (ictx = areq->an_context) ? &ictx->kc_glbl_ctx : NULL;
mutex_enter(&areq->an_lock);
/*
* We need to maintain ordering for multi-part requests.
* an_is_my_turn is set to B_TRUE initially for a request
* when it is enqueued and there are no other requests
* for that context. It is set later from kcf_aop_done() when
* the request before us in the chain of requests for the
* context completes. We get signaled at that point.
*/
if (ictx != NULL) {
ASSERT(ictx->kc_prov_desc == areq->an_provider);
while (areq->an_is_my_turn == B_FALSE) {
cv_wait(&areq->an_turn_cv, &areq->an_lock);
}
}
areq->an_state = REQ_INPROGRESS;
mutex_exit(&areq->an_lock);
error = common_submit_request(areq->an_provider, ctx,
&areq->an_params, areq);
}
bail:
if (error == CRYPTO_QUEUED) {
/*
* The request is queued by the provider and we should
* get a crypto_op_notification() from the provider later.
* We notify the consumer at that time.
*/
return;
} else { /* CRYPTO_SUCCESS or other failure */
KCF_PROV_IREFRELE(pd);
if (ctype == CRYPTO_SYNCH)
kcf_sop_done(sreq, error);
else
kcf_aop_done(areq, error);
}
}
/*
* This routine checks if a request can be retried on another
* provider. If true, mech1 is initialized to point to the mechanism
@ -441,7 +326,7 @@ kcf_resubmit_request(kcf_areq_node_t *areq)
new_pd = kcf_get_mech_provider(mech1->cm_type, NULL, &error,
areq->an_tried_plist, fg,
(areq->an_reqarg.cr_flag & CRYPTO_RESTRICTED), 0);
(areq->an_reqarg.cr_flag & CRYPTO_RESTRICTED));
if (new_pd == NULL)
return (error);
@ -472,26 +357,7 @@ kcf_resubmit_request(kcf_areq_node_t *areq)
areq->an_state = REQ_WAITING;
mutex_exit(&areq->an_lock);
switch (new_pd->pd_prov_type) {
case CRYPTO_SW_PROVIDER:
error = kcf_disp_sw_request(areq);
break;
case CRYPTO_HW_PROVIDER: {
taskq_t *taskq = new_pd->pd_sched_info.ks_taskq;
if (taskq_dispatch(taskq, process_req_hwp, areq, TQ_NOSLEEP) ==
TASKQID_INVALID) {
error = CRYPTO_HOST_MEMORY;
} else {
error = CRYPTO_QUEUED;
}
break;
default:
break;
}
}
error = kcf_disp_sw_request(areq);
return (error);
}
@ -515,196 +381,58 @@ kcf_submit_request(kcf_provider_desc_t *pd, crypto_ctx_t *ctx,
{
int error = CRYPTO_SUCCESS;
kcf_areq_node_t *areq;
kcf_sreq_node_t *sreq;
kcf_context_t *kcf_ctx;
taskq_t *taskq = pd->pd_sched_info.ks_taskq;
kcf_ctx = ctx ? (kcf_context_t *)ctx->cc_framework_private : NULL;
/* Synchronous cases */
/* Synchronous */
if (crq == NULL) {
switch (pd->pd_prov_type) {
case CRYPTO_SW_PROVIDER:
error = common_submit_request(pd, ctx, params,
KCF_RHNDL(KM_SLEEP));
} else { /* Asynchronous */
if (!(crq->cr_flag & CRYPTO_ALWAYS_QUEUE)) {
/*
* This case has less overhead since there is
* no switching of context.
*/
error = common_submit_request(pd, ctx, params,
KCF_RHNDL(KM_SLEEP));
break;
case CRYPTO_HW_PROVIDER:
KCF_RHNDL(KM_NOSLEEP));
} else {
/*
* Special case for CRYPTO_SYNCHRONOUS providers that
* never return a CRYPTO_QUEUED error. We skip any
* request allocation and call the SPI directly.
* CRYPTO_ALWAYS_QUEUE is set. We need to
* queue the request and return.
*/
if ((pd->pd_flags & CRYPTO_SYNCHRONOUS) &&
taskq_empty(taskq)) {
KCF_PROV_IREFHOLD(pd);
if (pd->pd_state == KCF_PROV_READY) {
error = common_submit_request(pd, ctx,
params, KCF_RHNDL(KM_SLEEP));
KCF_PROV_IREFRELE(pd);
ASSERT(error != CRYPTO_QUEUED);
break;
}
KCF_PROV_IREFRELE(pd);
}
sreq = kmem_cache_alloc(kcf_sreq_cache, KM_SLEEP);
sreq->sn_state = REQ_ALLOCATED;
sreq->sn_rv = CRYPTO_FAILED;
sreq->sn_params = params;
/*
* Note that we do not need to hold the context
* for synchronous case as the context will never
* become invalid underneath us. We do not need to hold
* the provider here either as the caller has a hold.
*/
sreq->sn_context = kcf_ctx;
ASSERT(KCF_PROV_REFHELD(pd));
sreq->sn_provider = pd;
ASSERT(taskq != NULL);
/*
* Call the SPI directly if the taskq is empty and the
* provider is not busy, else dispatch to the taskq.
* Calling directly is fine as this is the synchronous
* case. This is unlike the asynchronous case where we
* must always dispatch to the taskq.
*/
if (taskq_empty(taskq) &&
pd->pd_state == KCF_PROV_READY) {
process_req_hwp(sreq);
} else {
areq = kcf_areqnode_alloc(pd, kcf_ctx, crq,
params);
if (areq == NULL)
error = CRYPTO_HOST_MEMORY;
else {
if (!(crq->cr_flag
& CRYPTO_SKIP_REQID)) {
/*
* We can not tell from taskq_dispatch() return
* value if we exceeded maxalloc. Hence the
* check here. Since we are allowed to wait in
* the synchronous case, we wait for the taskq
* to become empty.
* Set the request handle. We have to
* do this before dispatching the
* request.
*/
if (taskq->tq_nalloc >= crypto_taskq_maxalloc) {
taskq_wait(taskq);
crq->cr_reqid = kcf_reqid_insert(areq);
}
(void) taskq_dispatch(taskq, process_req_hwp,
sreq, TQ_SLEEP);
}
/*
* Wait for the notification to arrive,
* if the operation is not done yet.
* Bug# 4722589 will make the wait a cv_wait_sig().
*/
mutex_enter(&sreq->sn_lock);
while (sreq->sn_state < REQ_DONE)
cv_wait(&sreq->sn_cv, &sreq->sn_lock);
mutex_exit(&sreq->sn_lock);
error = sreq->sn_rv;
kmem_cache_free(kcf_sreq_cache, sreq);
break;
default:
error = CRYPTO_FAILED;
break;
}
} else { /* Asynchronous cases */
switch (pd->pd_prov_type) {
case CRYPTO_SW_PROVIDER:
if (!(crq->cr_flag & CRYPTO_ALWAYS_QUEUE)) {
error = kcf_disp_sw_request(areq);
/*
* This case has less overhead since there is
* no switching of context.
* There is an error processing this
* request. Remove the handle and
* release the request structure.
*/
error = common_submit_request(pd, ctx, params,
KCF_RHNDL(KM_NOSLEEP));
} else {
/*
* CRYPTO_ALWAYS_QUEUE is set. We need to
* queue the request and return.
*/
areq = kcf_areqnode_alloc(pd, kcf_ctx, crq,
params);
if (areq == NULL)
error = CRYPTO_HOST_MEMORY;
else {
if (error != CRYPTO_QUEUED) {
if (!(crq->cr_flag
& CRYPTO_SKIP_REQID)) {
/*
* Set the request handle. We have to
* do this before dispatching the
* request.
*/
crq->cr_reqid = kcf_reqid_insert(areq);
}
error = kcf_disp_sw_request(areq);
/*
* There is an error processing this
* request. Remove the handle and
* release the request structure.
*/
if (error != CRYPTO_QUEUED) {
if (!(crq->cr_flag
& CRYPTO_SKIP_REQID))
kcf_reqid_delete(areq);
KCF_AREQ_REFRELE(areq);
}
& CRYPTO_SKIP_REQID))
kcf_reqid_delete(areq);
KCF_AREQ_REFRELE(areq);
}
}
break;
case CRYPTO_HW_PROVIDER:
/*
* We need to queue the request and return.
*/
areq = kcf_areqnode_alloc(pd, kcf_ctx, crq, params);
if (areq == NULL) {
error = CRYPTO_HOST_MEMORY;
goto done;
}
ASSERT(taskq != NULL);
/*
* We can not tell from taskq_dispatch() return
* value if we exceeded maxalloc. Hence the check
* here.
*/
if (taskq->tq_nalloc >= crypto_taskq_maxalloc) {
error = CRYPTO_BUSY;
KCF_AREQ_REFRELE(areq);
goto done;
}
if (!(crq->cr_flag & CRYPTO_SKIP_REQID)) {
/*
* Set the request handle. We have to do this
* before dispatching the request.
*/
crq->cr_reqid = kcf_reqid_insert(areq);
}
if (taskq_dispatch(taskq,
process_req_hwp, areq, TQ_NOSLEEP) ==
TASKQID_INVALID) {
error = CRYPTO_HOST_MEMORY;
if (!(crq->cr_flag & CRYPTO_SKIP_REQID))
kcf_reqid_delete(areq);
KCF_AREQ_REFRELE(areq);
} else {
error = CRYPTO_QUEUED;
}
break;
default:
error = CRYPTO_FAILED;
break;
}
}
done:
return (error);
}
@ -750,7 +478,7 @@ kcf_free_context(kcf_context_t *kcf_ctx)
/* kcf_ctx->kc_prov_desc has a hold on pd */
KCF_PROV_REFRELE(kcf_ctx->kc_prov_desc);
/* check if this context is shared with a software provider */
/* check if this context is shared with a provider */
if ((gctx->cc_flags & CRYPTO_INIT_OPSTATE) &&
kcf_ctx->kc_sw_prov_desc != NULL) {
KCF_PROV_REFRELE(kcf_ctx->kc_sw_prov_desc);
@ -775,7 +503,7 @@ kcf_free_req(kcf_areq_node_t *areq)
}
/*
* Add the request node to the end of the global software queue.
* Add the request node to the end of the global queue.
*
* The caller should not hold the queue lock. Returns 0 if the
* request is successfully queued. Returns CRYPTO_BUSY if the limit
@ -969,7 +697,7 @@ kcf_sched_init(void)
mutex_init(&gswq->gs_lock, NULL, MUTEX_DEFAULT, NULL);
cv_init(&gswq->gs_cv, NULL, CV_DEFAULT, NULL);
gswq->gs_njobs = 0;
gswq->gs_maxjobs = kcf_maxthreads * crypto_taskq_maxalloc;
gswq->gs_maxjobs = kcf_maxthreads * CRYPTO_TASKQ_MAX;
gswq->gs_first = gswq->gs_last = NULL;
/* Initialize the global reqid table */
@ -1216,9 +944,7 @@ kcf_misc_kstat_update(kstat_t *ksp, int rw)
ks_data->ks_maxthrs.value.ui32 = kcf_maxthreads;
ks_data->ks_swq_njobs.value.ui32 = gswq->gs_njobs;
ks_data->ks_swq_maxjobs.value.ui32 = gswq->gs_maxjobs;
ks_data->ks_taskq_threads.value.ui32 = crypto_taskq_threads;
ks_data->ks_taskq_minalloc.value.ui32 = crypto_taskq_minalloc;
ks_data->ks_taskq_maxalloc.value.ui32 = crypto_taskq_maxalloc;
ks_data->ks_swq_maxalloc.value.ui32 = CRYPTO_TASKQ_MAX;
return (0);
}

111
module/icp/include/sys/crypto/impl.h
View File

@ -62,9 +62,7 @@ typedef struct kcf_stats {
kstat_named_t ks_maxthrs;
kstat_named_t ks_swq_njobs;
kstat_named_t ks_swq_maxjobs;
kstat_named_t ks_taskq_threads;
kstat_named_t ks_taskq_minalloc;
kstat_named_t ks_taskq_maxalloc;
kstat_named_t ks_swq_maxalloc;
} kcf_stats_t;
/*
@ -80,9 +78,6 @@ typedef struct kcf_sched_info {
/* The number of operations that returned CRYPTO_BUSY. */
uint64_t ks_nbusy_rval;
/* taskq used to dispatch crypto requests */
taskq_t *ks_taskq;
} kcf_sched_info_t;
/*
@ -96,8 +91,7 @@ typedef struct kcf_sched_info {
* acquire any locks here as it is not critical to get the exact number
* and the lock contention may be too costly for this code path.
*/
#define KCF_PROV_LOAD(pd) ((pd)->pd_state != KCF_PROV_BUSY ? \
(pd)->pd_irefcnt : (pd)->pd_sched_info.ks_taskq->tq_nalloc)
#define KCF_PROV_LOAD(pd) ((pd)->pd_irefcnt)
#define KCF_PROV_INCRSTATS(pd, error) { \
(pd)->pd_sched_info.ks_ndispatches++; \
@ -125,21 +119,17 @@ typedef struct kcf_sched_info {
* the elements is important.
*
* Routines which get a provider or the list of providers
* should pick only those that are either in KCF_PROV_READY state
* or in KCF_PROV_BUSY state.
* should pick only those that are in KCF_PROV_READY state.
*/
typedef enum {
KCF_PROV_ALLOCATED = 1,
KCF_PROV_UNVERIFIED,
KCF_PROV_VERIFICATION_FAILED,
/*
* state < KCF_PROV_READY means the provider can not
* be used at all.
*/
KCF_PROV_READY,
KCF_PROV_BUSY,
/*
* state > KCF_PROV_BUSY means the provider can not
* state > KCF_PROV_READY means the provider can not
* be used for new requests.
*/
KCF_PROV_FAILED,
@ -152,30 +142,23 @@ typedef enum {
KCF_PROV_FREED
} kcf_prov_state_t;
#define KCF_IS_PROV_UNVERIFIED(pd) ((pd)->pd_state == KCF_PROV_UNVERIFIED)
#define KCF_IS_PROV_USABLE(pd) ((pd)->pd_state == KCF_PROV_READY || \
(pd)->pd_state == KCF_PROV_BUSY)
#define KCF_IS_PROV_USABLE(pd) ((pd)->pd_state == KCF_PROV_READY)
#define KCF_IS_PROV_REMOVED(pd) ((pd)->pd_state >= KCF_PROV_REMOVED)
/* Internal flags valid for pd_flags field */
#define KCF_PROV_RESTRICTED 0x40000000
#define KCF_LPROV_MEMBER 0x80000000 /* is member of a logical provider */
/*
* A provider descriptor structure. There is one such structure per
* provider. It is allocated and initialized at registration time and
* freed when the provider unregisters.
*
* pd_prov_type: Provider type, hardware or software
* pd_sid: Session ID of the provider used by kernel clients.
* This is valid only for session-oriented providers.
* pd_refcnt: Reference counter to this provider descriptor
* pd_irefcnt: References held by the framework internal structs
* pd_lock: lock protects pd_state and pd_provider_list
* pd_lock: lock protects pd_state
* pd_state: State value of the provider
* pd_provider_list: Used to cross-reference logical providers and their
* members. Not used for software providers.
* pd_resume_cv: cv to wait for state to change from KCF_PROV_BUSY
* pd_prov_handle: Provider handle specified by provider
* pd_ops_vector: The ops vector specified by Provider
* pd_mech_indx: Lookup table which maps a core framework mechanism
@ -185,10 +168,6 @@ typedef enum {
* pd_sched_info: Scheduling information associated with the provider
* pd_mech_list_count: The number of entries in pi_mechanisms, specified
* by the provider during registration
* pd_name: Device name or module name
* pd_instance: Device instance
* pd_module_id: Module ID returned by modload
* pd_mctlp: Pointer to modctl structure for this provider
* pd_remove_cv: cv to wait on while the provider queue drains
* pd_description: Provider description string
* pd_flags bitwise OR of pi_flags from crypto_provider_info_t
@ -201,13 +180,11 @@ typedef enum {
* pd_ks_data: kstat data
*/
typedef struct kcf_provider_desc {
crypto_provider_type_t pd_prov_type;
crypto_session_id_t pd_sid;
uint_t pd_refcnt;
uint_t pd_irefcnt;
kmutex_t pd_lock;
kcf_prov_state_t pd_state;
struct kcf_provider_list *pd_provider_list;
kcondvar_t pd_resume_cv;
crypto_provider_handle_t pd_prov_handle;
const crypto_ops_t *pd_ops_vector;
@ -216,10 +193,6 @@ typedef struct kcf_provider_desc {
const crypto_mech_info_t *pd_mechanisms;
kcf_sched_info_t pd_sched_info;
uint_t pd_mech_list_count;
// char *pd_name;
// uint_t pd_instance;
// int pd_module_id;
// struct modctl *pd_mctlp;
kcondvar_t pd_remove_cv;
const char *pd_description;
uint_t pd_flags;
@ -230,12 +203,6 @@ typedef struct kcf_provider_desc {
kcf_prov_stats_t pd_ks_data;
} kcf_provider_desc_t;
/* useful for making a list of providers */
typedef struct kcf_provider_list {
struct kcf_provider_list *pl_next;
struct kcf_provider_desc *pl_provider;
} kcf_provider_list_t;
/* atomic operations in linux implicitly form a memory barrier */
#define membar_exit()
@ -273,14 +240,6 @@ typedef struct kcf_provider_list {
}
/* list of crypto_mech_info_t valid as the second mech in a dual operation */
typedef struct crypto_mech_info_list {
struct crypto_mech_info_list *ml_next;
crypto_mech_type_t ml_kcf_mechid; /* KCF's id */
crypto_mech_info_t ml_mech_info;
} crypto_mech_info_list_t;
/*
* An element in a mechanism provider descriptors chain.
* The kcf_prov_mech_desc_t is duplicated in every chain the provider belongs
@ -292,15 +251,9 @@ typedef struct kcf_prov_mech_desc {
struct kcf_mech_entry *pm_me; /* Back to the head */
struct kcf_prov_mech_desc *pm_next; /* Next in the chain */
crypto_mech_info_t pm_mech_info; /* Provider mech info */
crypto_mech_info_list_t *pm_mi_list; /* list for duals */
kcf_provider_desc_t *pm_prov_desc; /* Common desc. */
} kcf_prov_mech_desc_t;
/* and the notation shortcuts ... */
#define pm_provider_type pm_prov_desc.pd_provider_type
#define pm_provider_handle pm_prov_desc.pd_provider_handle
#define pm_ops_vector pm_prov_desc.pd_ops_vector
/*
* A mechanism entry in an xxx_mech_tab[]. me_pad was deemed
* to be unnecessary and removed.
@ -309,16 +262,10 @@ typedef struct kcf_mech_entry {
crypto_mech_name_t me_name; /* mechanism name */
crypto_mech_type_t me_mechid; /* Internal id for mechanism */
kmutex_t me_mutex; /* access protection */
kcf_prov_mech_desc_t *me_hw_prov_chain; /* list of HW providers */
kcf_prov_mech_desc_t *me_sw_prov; /* SW provider */
kcf_prov_mech_desc_t *me_sw_prov; /* provider */
/*
* Number of HW providers in the chain. There is only one
* SW provider. So, we need only a count of HW providers.
*/
int me_num_hwprov;
/*
* When a SW provider is present, this is the generation number that
* ensures no objects from old SW providers are used in the new one
* When a provider is present, this is the generation number that
* ensures no objects from old providers are used in the new one
*/
uint32_t me_gen_swprov;
/*
@ -327,28 +274,6 @@ typedef struct kcf_mech_entry {
size_t me_threshold;
} kcf_mech_entry_t;
/*
* A policy descriptor structure. It is allocated and initialized
* when administrative ioctls load disabled mechanisms.
*
* pd_prov_type: Provider type, hardware or software
* pd_name: Device name or module name.
* pd_instance: Device instance.
* pd_refcnt: Reference counter for this policy descriptor
* pd_mutex: Protects array and count of disabled mechanisms.
* pd_disabled_count: Count of disabled mechanisms.
* pd_disabled_mechs: Array of disabled mechanisms.
*/
typedef struct kcf_policy_desc {
crypto_provider_type_t pd_prov_type;
char *pd_name;
uint_t pd_instance;
uint_t pd_refcnt;
kmutex_t pd_mutex;
uint_t pd_disabled_count;
crypto_mech_name_t *pd_disabled_mechs;
} kcf_policy_desc_t;
/*
* If a component has a reference to a kcf_policy_desc_t,
* it REFHOLD()s. A new policy descriptor which is referenced only
@ -370,21 +295,6 @@ typedef struct kcf_policy_desc {
kcf_policy_free_desc(desc); \
}
/*
* This entry stores the name of a software module and its
* mechanisms. The mechanisms are 'hints' that are used to
* trigger loading of the module.
*/
typedef struct kcf_soft_conf_entry {
struct kcf_soft_conf_entry *ce_next;
char *ce_name;
crypto_mech_name_t *ce_mechs;
uint_t ce_count;
} kcf_soft_conf_entry_t;
extern kmutex_t soft_config_mutex;
extern kcf_soft_conf_entry_t *soft_config_list;
/*
* Global tables. The sizes are from the predefined PKCS#11 v2.20 mechanisms,
* with a margin of few extra empty entry points
@ -671,8 +581,7 @@ extern int kcf_add_mech_provider(short, kcf_provider_desc_t *,
kcf_prov_mech_desc_t **);
extern void kcf_remove_mech_provider(const char *, kcf_provider_desc_t *);
extern int kcf_get_mech_entry(crypto_mech_type_t, kcf_mech_entry_t **);
extern kcf_provider_desc_t *kcf_alloc_provider_desc(
const crypto_provider_info_t *);
extern kcf_provider_desc_t *kcf_alloc_provider_desc(void);
extern void kcf_provider_zero_refcnt(kcf_provider_desc_t *);
extern void kcf_free_provider_desc(kcf_provider_desc_t *);
extern crypto_mech_type_t crypto_mech2id_common(const char *, boolean_t);

43
module/icp/include/sys/crypto/sched_impl.h
View File

@ -59,23 +59,20 @@ typedef enum kcf_call_type {
#define CHECK_RESTRICT(crq) (crq != NULL && \
((crq)->cr_flag & CRYPTO_RESTRICTED))
#define CHECK_RESTRICT_FALSE B_FALSE
#define CHECK_FASTPATH(crq, pd) ((crq) == NULL || \
!((crq)->cr_flag & CRYPTO_ALWAYS_QUEUE)) && \
(pd)->pd_prov_type == CRYPTO_SW_PROVIDER
!((crq)->cr_flag & CRYPTO_ALWAYS_QUEUE))
#define KCF_KMFLAG(crq) (((crq) == NULL) ? KM_SLEEP : KM_NOSLEEP)
/*
* The framework keeps an internal handle to use in the adaptive
* asynchronous case. This is the case when a client has the
* CRYPTO_ALWAYS_QUEUE bit clear and a software provider is used for
* CRYPTO_ALWAYS_QUEUE bit clear and a provider is used for
* the request. The request is completed in the context of the calling
* thread and kernel memory must be allocated with KM_NOSLEEP.
*
* The framework passes a pointer to the handle in crypto_req_handle_t
* argument when it calls the SPI of the software provider. The macros
* argument when it calls the SPI of the provider. The macros
* KCF_RHNDL() and KCF_SWFP_RHNDL() are used to do this.
*
* When a provider asks the framework for kmflag value via
@ -146,7 +143,7 @@ typedef struct kcf_sreq_node {
/*
* Node structure for asynchronous requests. A node can be on
* on a chain of requests hanging of the internal context
* structure and can be in the global software provider queue.
* structure and can be in the global provider queue.
*/
typedef struct kcf_areq_node {
/* Should always be the first field in this structure */
@ -176,11 +173,7 @@ typedef struct kcf_areq_node {
kcondvar_t an_turn_cv;
boolean_t an_is_my_turn;
/*
* Next and previous nodes in the global software
* queue. These fields are NULL for a hardware
* provider since we use a taskq there.
*/
/* Next and previous nodes in the global queue. */
struct kcf_areq_node *an_next;
struct kcf_areq_node *an_prev;
@ -244,8 +237,8 @@ typedef struct kcf_reqid_table {
} kcf_reqid_table_t;
/*
* Global software provider queue structure. Requests to be
* handled by a SW provider and have the ALWAYS_QUEUE flag set
* Global provider queue structure. Requests to be
* handled by a provider and have the ALWAYS_QUEUE flag set
* get queued here.
*/
typedef struct kcf_global_swq {
@ -339,11 +332,11 @@ typedef struct kcf_ctx_template {
uint_t ct_generation; /* generation # */
size_t ct_size; /* for freeing */
crypto_spi_ctx_template_t ct_prov_tmpl; /* context template */
/* from the SW prov */
/* from the provider */
} kcf_ctx_template_t;
/*
* Structure for pool of threads working on global software queue.
* Structure for pool of threads working on the global queue.
*/
typedef struct kcf_pool {
uint32_t kp_threads; /* Number of threads in pool */
@ -431,19 +424,12 @@ typedef struct kcf_ntfy_elem {
* The following values are based on the assumption that it would
* take around eight cpus to load a hardware provider (This is true for
* at least one product) and a kernel client may come from different
* low-priority interrupt levels. We will have CRYPTO_TASKQ_MIN number
* of cached taskq entries. The CRYPTO_TASKQ_MAX number is based on
* low-priority interrupt levels. The CRYPTO_TASKQ_MAX number is based on
* a throughput of 1GB/s using 512-byte buffers. These are just
* reasonable estimates and might need to change in future.
*/
#define CRYPTO_TASKQ_THREADS 8
#define CRYPTO_TASKQ_MIN 64
#define CRYPTO_TASKQ_MAX 2 * 1024 * 1024
extern const int crypto_taskq_threads;
extern const int crypto_taskq_minalloc;
extern const int crypto_taskq_maxalloc;
/*
* All pending crypto bufcalls are put on a list. cbuf_list_lock
* protects changes to this list.
@ -458,19 +444,12 @@ extern kcondvar_t cbuf_list_cv;
extern kmutex_t ntfy_list_lock;
extern kcondvar_t ntfy_list_cv;
boolean_t kcf_get_next_logical_provider_member(kcf_provider_desc_t *,
kcf_provider_desc_t *, kcf_provider_desc_t **);
extern int kcf_get_hardware_provider(crypto_mech_type_t, crypto_mech_type_t,
boolean_t, kcf_provider_desc_t *, kcf_provider_desc_t **,
crypto_func_group_t);
extern int kcf_get_hardware_provider_nomech(offset_t, offset_t,
boolean_t, kcf_provider_desc_t *, kcf_provider_desc_t **);
extern void kcf_free_triedlist(kcf_prov_tried_t *);
extern kcf_prov_tried_t *kcf_insert_triedlist(kcf_prov_tried_t **,
kcf_provider_desc_t *, int);
extern kcf_provider_desc_t *kcf_get_mech_provider(crypto_mech_type_t,
kcf_mech_entry_t **, int *, kcf_prov_tried_t *, crypto_func_group_t,
boolean_t, size_t);
boolean_t);
extern crypto_ctx_t *kcf_new_ctx(crypto_call_req_t *, kcf_provider_desc_t *,
crypto_session_id_t);
extern int kcf_submit_request(kcf_provider_desc_t *, crypto_ctx_t *,

17
module/icp/include/sys/crypto/spi.h
View File

@ -43,10 +43,6 @@ extern "C" {
#define __no_const
#endif /* CONSTIFY_PLUGIN */
#define CRYPTO_SPI_VERSION_1 1
#define CRYPTO_SPI_VERSION_2 2
#define CRYPTO_SPI_VERSION_3 3
/*
* Provider-private handle. This handle is specified by a provider
* when it registers by means of the pi_provider_handle field of
@ -56,18 +52,16 @@ extern "C" {
typedef void *crypto_provider_handle_t;
/*
* Context templates can be used to by software providers to pre-process
* Context templates can be used to by providers to pre-process
* keying material, such as key schedules. They are allocated by
* a software provider create_ctx_template(9E) entry point, and passed
* a provider create_ctx_template(9E) entry point, and passed
* as argument to initialization and atomic provider entry points.
*/
typedef void *crypto_spi_ctx_template_t;
/*
* Request handles are used by the kernel to identify an asynchronous
* request being processed by a provider. It is passed by the kernel
* to a hardware provider when submitting a request, and must be
* specified by a provider when calling crypto_op_notification(9F)
* request being processed by a provider.
*/
typedef void *crypto_req_handle_t;
@ -268,18 +262,13 @@ typedef uint_t crypto_kcf_provider_handle_t;
*/
typedef struct crypto_provider_info {
const char *pi_provider_description;
crypto_provider_type_t pi_provider_type;
crypto_provider_handle_t pi_provider_handle;
const crypto_ops_t *pi_ops_vector;
uint_t pi_mech_list_count;
const crypto_mech_info_t *pi_mechanisms;
uint_t pi_logical_provider_count;
crypto_kcf_provider_handle_t *pi_logical_providers;
uint_t pi_flags;
} crypto_provider_info_t;
/* hidden providers can only be accessed via a logical provider */
#define CRYPTO_HIDE_PROVIDER 0x00000001
/*
* provider can not do multi-part digest (updates) and has a limit
* on maximum input data that it can digest.

1
module/icp/io/aes.c
View File

@ -150,7 +150,6 @@ static const crypto_ops_t aes_crypto_ops = {
static const crypto_provider_info_t aes_prov_info = {
"AES Software Provider",
CRYPTO_SW_PROVIDER,
NULL,
&aes_crypto_ops,
sizeof (aes_mech_info_tab) / sizeof (crypto_mech_info_t),

1
module/icp/io/sha2_mod.c
View File

@ -166,7 +166,6 @@ static const crypto_ops_t sha2_crypto_ops = {
static const crypto_provider_info_t sha2_prov_info = {
"SHA2 Software Provider",
CRYPTO_SW_PROVIDER,
NULL,
&sha2_crypto_ops,
sizeof (sha2_mech_info_tab) / sizeof (crypto_mech_info_t),

1
module/icp/io/skein_mod.c
View File

@ -104,7 +104,6 @@ static const crypto_ops_t skein_crypto_ops = {
static const crypto_provider_info_t skein_prov_info = {
"Skein Software Provider",
CRYPTO_SW_PROVIDER,
NULL,
&skein_crypto_ops,
sizeof (skein_mech_info_tab) / sizeof (crypto_mech_info_t),

368
module/icp/spi/kcf_spi.c
View File

@ -36,16 +36,6 @@
#include <sys/crypto/sched_impl.h>
#include <sys/crypto/spi.h>
/*
* minalloc and maxalloc values to be used for taskq_create().
*/
const int crypto_taskq_threads = CRYPTO_TASKQ_THREADS;
const int crypto_taskq_minalloc = CRYPTO_TASKQ_MIN;
const int crypto_taskq_maxalloc = CRYPTO_TASKQ_MAX;
static void remove_provider(kcf_provider_desc_t *);
static void process_logical_providers(const crypto_provider_info_t *,
kcf_provider_desc_t *);
static int init_prov_mechs(const crypto_provider_info_t *,
kcf_provider_desc_t *);
static int kcf_prov_kstat_update(kstat_t *, int);
@ -63,35 +53,22 @@ static const kcf_prov_stats_t kcf_stats_ks_data_template = {
* Providers pass a crypto_provider_info structure to crypto_register_provider()
* and get back a handle. The crypto_provider_info structure contains a
* list of mechanisms supported by the provider and an ops vector containing
* provider entry points. Hardware providers call this routine in their attach
* routines. Software providers call this routine in their _init() routine.
* provider entry points. Providers call this routine in their _init() routine.
*/
int
crypto_register_provider(const crypto_provider_info_t *info,
crypto_kcf_provider_handle_t *handle)
{
char *ks_name;
kcf_provider_desc_t *prov_desc = NULL;
int ret = CRYPTO_ARGUMENTS_BAD;
/*
* Check provider type, must be software, hardware, or logical.
*/
if (info->pi_provider_type != CRYPTO_HW_PROVIDER &&
info->pi_provider_type != CRYPTO_SW_PROVIDER &&
info->pi_provider_type != CRYPTO_LOGICAL_PROVIDER)
return (CRYPTO_ARGUMENTS_BAD);
/*
* Allocate and initialize a new provider descriptor. We also
* hold it and release it when done.
*/
prov_desc = kcf_alloc_provider_desc(info);
prov_desc = kcf_alloc_provider_desc();
KCF_PROV_REFHOLD(prov_desc);
prov_desc->pd_prov_type = info->pi_provider_type;
/* provider-private handle, opaque to KCF */
prov_desc->pd_prov_handle = info->pi_provider_handle;
@ -99,10 +76,8 @@ crypto_register_provider(const crypto_provider_info_t *info,
prov_desc->pd_description = info->pi_provider_description;
/* Change from Illumos: the ops vector is persistent. */
if (info->pi_provider_type != CRYPTO_LOGICAL_PROVIDER) {
prov_desc->pd_ops_vector = info->pi_ops_vector;
prov_desc->pd_flags = info->pi_flags;
}
prov_desc->pd_ops_vector = info->pi_ops_vector;
prov_desc->pd_flags = info->pi_flags;
/* process the mechanisms supported by the provider */
if ((ret = init_prov_mechs(info, prov_desc)) != CRYPTO_SUCCESS)
@ -118,56 +93,33 @@ crypto_register_provider(const crypto_provider_info_t *info,
}
/*
* We create a taskq only for a hardware provider. The global
* software queue is used for software providers. We handle ordering
* The global queue is used for providers. We handle ordering
* of multi-part requests in the taskq routine. So, it is safe to
* have multiple threads for the taskq. We pass TASKQ_PREPOPULATE flag
* to keep some entries cached to improve performance.
*/
if (prov_desc->pd_prov_type == CRYPTO_HW_PROVIDER)
prov_desc->pd_sched_info.ks_taskq = taskq_create("kcf_taskq",
CRYPTO_TASKQ_THREADS, minclsyspri,
CRYPTO_TASKQ_MIN, CRYPTO_TASKQ_MAX,
TASKQ_PREPOPULATE);
else
prov_desc->pd_sched_info.ks_taskq = NULL;
if (prov_desc->pd_prov_type != CRYPTO_LOGICAL_PROVIDER) {
/*
* Create the kstat for this provider. There is a kstat
* installed for each successfully registered provider.
* This kstat is deleted, when the provider unregisters.
*/
if (prov_desc->pd_prov_type == CRYPTO_SW_PROVIDER) {
ks_name = kmem_asprintf("%s_%s",
"NONAME", "provider_stats");
} else {
ks_name = kmem_asprintf("%s_%d_%u_%s",
"NONAME", 0, prov_desc->pd_prov_id,
"provider_stats");
}
/*
* Create the kstat for this provider. There is a kstat
* installed for each successfully registered provider.
* This kstat is deleted, when the provider unregisters.
*/
prov_desc->pd_kstat = kstat_create("kcf", 0, "NONAME_provider_stats",
"crypto", KSTAT_TYPE_NAMED, sizeof (kcf_prov_stats_t) /
sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
prov_desc->pd_kstat = kstat_create("kcf", 0, ks_name, "crypto",
KSTAT_TYPE_NAMED, sizeof (kcf_prov_stats_t) /
sizeof (kstat_named_t), KSTAT_FLAG_VIRTUAL);
if (prov_desc->pd_kstat != NULL) {
bcopy(&kcf_stats_ks_data_template,
&prov_desc->pd_ks_data,
sizeof (kcf_stats_ks_data_template));
prov_desc->pd_kstat->ks_data = &prov_desc->pd_ks_data;
KCF_PROV_REFHOLD(prov_desc);
KCF_PROV_IREFHOLD(prov_desc);
prov_desc->pd_kstat->ks_private = prov_desc;
prov_desc->pd_kstat->ks_update = kcf_prov_kstat_update;
kstat_install(prov_desc->pd_kstat);
}
kmem_strfree(ks_name);
if (prov_desc->pd_kstat != NULL) {
bcopy(&kcf_stats_ks_data_template,
&prov_desc->pd_ks_data,
sizeof (kcf_stats_ks_data_template));
prov_desc->pd_kstat->ks_data = &prov_desc->pd_ks_data;
KCF_PROV_REFHOLD(prov_desc);
KCF_PROV_IREFHOLD(prov_desc);
prov_desc->pd_kstat->ks_private = prov_desc;
prov_desc->pd_kstat->ks_update = kcf_prov_kstat_update;
kstat_install(prov_desc->pd_kstat);
}
if (prov_desc->pd_prov_type == CRYPTO_HW_PROVIDER)
process_logical_providers(info, prov_desc);
mutex_enter(&prov_desc->pd_lock);
prov_desc->pd_state = KCF_PROV_READY;
mutex_exit(&prov_desc->pd_lock);
@ -183,8 +135,7 @@ bail:
/*
* This routine is used to notify the framework when a provider is being
* removed. Hardware providers call this routine in their detach routines.
* Software providers call this routine in their _fini() routine.
* removed. Providers call this routine in their _fini() routine.
*/
int
crypto_unregister_provider(crypto_kcf_provider_handle_t handle)
@ -212,46 +163,30 @@ crypto_unregister_provider(crypto_kcf_provider_handle_t handle)
saved_state = desc->pd_state;
desc->pd_state = KCF_PROV_REMOVED;
if (saved_state == KCF_PROV_BUSY) {
/*
* Check if this provider is currently being used.
* pd_irefcnt is the number of holds from the internal
* structures. We add one to account for the above lookup.
*/
if (desc->pd_refcnt > desc->pd_irefcnt + 1) {
desc->pd_state = saved_state;
mutex_exit(&desc->pd_lock);
/* Release reference held by kcf_prov_tab_lookup(). */
KCF_PROV_REFRELE(desc);
/*
* The per-provider taskq threads may be waiting. We
* signal them so that they can start failing requests.
* The administrator will presumably stop the clients,
* thus removing the holds, when they get the busy
* return value. Any retry will succeed then.
*/
cv_broadcast(&desc->pd_resume_cv);
}
if (desc->pd_prov_type == CRYPTO_SW_PROVIDER) {
/*
* Check if this provider is currently being used.
* pd_irefcnt is the number of holds from the internal
* structures. We add one to account for the above lookup.
*/
if (desc->pd_refcnt > desc->pd_irefcnt + 1) {
desc->pd_state = saved_state;
mutex_exit(&desc->pd_lock);
/* Release reference held by kcf_prov_tab_lookup(). */
KCF_PROV_REFRELE(desc);
/*
* The administrator presumably will stop the clients
* thus removing the holds, when they get the busy
* return value. Any retry will succeed then.
*/
return (CRYPTO_BUSY);
}
return (CRYPTO_BUSY);
}
mutex_exit(&desc->pd_lock);
if (desc->pd_prov_type != CRYPTO_SW_PROVIDER) {
remove_provider(desc);
}
if (desc->pd_prov_type != CRYPTO_LOGICAL_PROVIDER) {
/* remove the provider from the mechanisms tables */
for (mech_idx = 0; mech_idx < desc->pd_mech_list_count;
mech_idx++) {
kcf_remove_mech_provider(
desc->pd_mechanisms[mech_idx].cm_mech_name, desc);
}
/* remove the provider from the mechanisms tables */
for (mech_idx = 0; mech_idx < desc->pd_mech_list_count;
mech_idx++) {
kcf_remove_mech_provider(
desc->pd_mechanisms[mech_idx].cm_mech_name, desc);
}
/* remove provider from providers table */
@ -264,51 +199,34 @@ crypto_unregister_provider(crypto_kcf_provider_handle_t handle)
delete_kstat(desc);
if (desc->pd_prov_type == CRYPTO_SW_PROVIDER) {
/* Release reference held by kcf_prov_tab_lookup(). */
KCF_PROV_REFRELE(desc);
/* Release reference held by kcf_prov_tab_lookup(). */
KCF_PROV_REFRELE(desc);
/*
* Wait till the existing requests complete.
*/
mutex_enter(&desc->pd_lock);
while (desc->pd_state != KCF_PROV_FREED)
cv_wait(&desc->pd_remove_cv, &desc->pd_lock);
mutex_exit(&desc->pd_lock);
} else {
/*
* Wait until requests that have been sent to the provider
* complete.
*/
mutex_enter(&desc->pd_lock);
while (desc->pd_irefcnt > 0)
cv_wait(&desc->pd_remove_cv, &desc->pd_lock);
mutex_exit(&desc->pd_lock);
}
/*
* Wait till the existing requests complete.
*/
mutex_enter(&desc->pd_lock);
while (desc->pd_state != KCF_PROV_FREED)
cv_wait(&desc->pd_remove_cv, &desc->pd_lock);
mutex_exit(&desc->pd_lock);
kcf_do_notify(desc, B_FALSE);
if (desc->pd_prov_type == CRYPTO_SW_PROVIDER) {
/*
* This is the only place where kcf_free_provider_desc()
* is called directly. KCF_PROV_REFRELE() should free the
* structure in all other places.
*/
ASSERT(desc->pd_state == KCF_PROV_FREED &&
desc->pd_refcnt == 0);
kcf_free_provider_desc(desc);
} else {
KCF_PROV_REFRELE(desc);
}
/*
* This is the only place where kcf_free_provider_desc()
* is called directly. KCF_PROV_REFRELE() should free the
* structure in all other places.
*/
ASSERT(desc->pd_state == KCF_PROV_FREED &&
desc->pd_refcnt == 0);
kcf_free_provider_desc(desc);
return (CRYPTO_SUCCESS);
}
/*
* This routine is used by software providers to determine
* This routine is used by providers to determine
* whether to use KM_SLEEP or KM_NOSLEEP during memory allocation.
* Note that hardware providers can always use KM_SLEEP. So,
* they do not need to call this routine.
*
* This routine can be called from user or interrupt context.
*/
@ -323,9 +241,6 @@ crypto_kmflag(crypto_req_handle_t handle)
* during registration. A NULL crypto_provider_info_t indicates
* an already initialized provider descriptor.
*
* Mechanisms are not added to the kernel's mechanism table if the
* provider is a logical provider.
*
* Returns CRYPTO_SUCCESS on success, CRYPTO_ARGUMENTS if one
* of the specified mechanisms was malformed, or CRYPTO_HOST_MEMORY
* if the table of mechanisms is full.
@ -339,15 +254,6 @@ init_prov_mechs(const crypto_provider_info_t *info, kcf_provider_desc_t *desc)
kcf_prov_mech_desc_t *pmd;
int desc_use_count = 0;
if (desc->pd_prov_type == CRYPTO_LOGICAL_PROVIDER) {
if (info != NULL) {
ASSERT(info->pi_mechanisms != NULL);
desc->pd_mech_list_count = info->pi_mech_list_count;
desc->pd_mechanisms = info->pi_mechanisms;
}
return (CRYPTO_SUCCESS);
}
/*
* Copy the mechanism list from the provider info to the provider
* descriptor. desc->pd_mechanisms has an extra crypto_mech_info_t
@ -403,12 +309,12 @@ init_prov_mechs(const crypto_provider_info_t *info, kcf_provider_desc_t *desc)
}
/*
* Don't allow multiple software providers with disabled mechanisms
* Don't allow multiple providers with disabled mechanisms
* to register. Subsequent enabling of mechanisms will result in
* an unsupported configuration, i.e. multiple software providers
* an unsupported configuration, i.e. multiple providers
* per mechanism.
*/
if (desc_use_count == 0 && desc->pd_prov_type == CRYPTO_SW_PROVIDER)
if (desc_use_count == 0)
return (CRYPTO_ARGUMENTS_BAD);
if (err == KCF_SUCCESS)
@ -479,117 +385,6 @@ undo_register_provider(kcf_provider_desc_t *desc, boolean_t remove_prov)
(void) kcf_prov_tab_rem_provider(desc->pd_prov_id);
}
/*
* Add provider (p1) to another provider's array of providers (p2).
* Hardware and logical providers use this array to cross-reference
* each other.
*/
static void
add_provider_to_array(kcf_provider_desc_t *p1, kcf_provider_desc_t *p2)
{
kcf_provider_list_t *new;
new = kmem_alloc(sizeof (kcf_provider_list_t), KM_SLEEP);
mutex_enter(&p2->pd_lock);
new->pl_next = p2->pd_provider_list;
p2->pd_provider_list = new;
KCF_PROV_IREFHOLD(p1);
new->pl_provider = p1;
mutex_exit(&p2->pd_lock);
}
/*
* Remove provider (p1) from another provider's array of providers (p2).
* Hardware and logical providers use this array to cross-reference
* each other.
*/
static void
remove_provider_from_array(kcf_provider_desc_t *p1, kcf_provider_desc_t *p2)
{
kcf_provider_list_t *pl = NULL, **prev;
mutex_enter(&p2->pd_lock);
for (pl = p2->pd_provider_list, prev = &p2->pd_provider_list;
pl != NULL; prev = &pl->pl_next, pl = pl->pl_next) {
if (pl->pl_provider == p1) {
break;
}
}
if (p1 == NULL) {
mutex_exit(&p2->pd_lock);
return;
}
/* detach and free kcf_provider_list structure */
KCF_PROV_IREFRELE(p1);
*prev = pl->pl_next;
kmem_free(pl, sizeof (*pl));
mutex_exit(&p2->pd_lock);
}
/*
* Convert an array of logical provider handles (crypto_provider_id)
* stored in a crypto_provider_info structure into an array of provider
* descriptors (kcf_provider_desc_t) attached to a logical provider.
*/
static void
process_logical_providers(const crypto_provider_info_t *info,
kcf_provider_desc_t *hp)
{
kcf_provider_desc_t *lp;
crypto_provider_id_t handle;
int count = info->pi_logical_provider_count;
int i;
/* add hardware provider to each logical provider */
for (i = 0; i < count; i++) {
handle = info->pi_logical_providers[i];
lp = kcf_prov_tab_lookup((crypto_provider_id_t)handle);
if (lp == NULL) {
continue;
}
add_provider_to_array(hp, lp);
hp->pd_flags |= KCF_LPROV_MEMBER;
/*
* A hardware provider has to have the provider descriptor of
* every logical provider it belongs to, so it can be removed
* from the logical provider if the hardware provider
* unregisters from the framework.
*/
add_provider_to_array(lp, hp);
KCF_PROV_REFRELE(lp);
}
}
/*
* This routine removes a provider from all of the logical or
* hardware providers it belongs to, and frees the provider's
* array of pointers to providers.
*/
static void
remove_provider(kcf_provider_desc_t *pp)
{
kcf_provider_desc_t *p;
kcf_provider_list_t *e, *next;
mutex_enter(&pp->pd_lock);
for (e = pp->pd_provider_list; e != NULL; e = next) {
p = e->pl_provider;
remove_provider_from_array(pp, p);
if (p->pd_prov_type == CRYPTO_HW_PROVIDER &&
p->pd_provider_list == NULL)
p->pd_flags &= ~KCF_LPROV_MEMBER;
KCF_PROV_IREFRELE(p);
next = e->pl_next;
kmem_free(e, sizeof (*e));
}
pp->pd_provider_list = NULL;
mutex_exit(&pp->pd_lock);
}
/*
* Dispatch events as needed for a provider. is_added flag tells
* whether the provider is registering or unregistering.
@ -600,36 +395,19 @@ kcf_do_notify(kcf_provider_desc_t *prov_desc, boolean_t is_added)
int i;
crypto_notify_event_change_t ec;
ASSERT(prov_desc->pd_state > KCF_PROV_VERIFICATION_FAILED);
ASSERT(prov_desc->pd_state > KCF_PROV_ALLOCATED);
/*
* Inform interested clients of the mechanisms becoming
* available/unavailable. We skip this for logical providers
* as they do not affect mechanisms.
* available/unavailable.
*/
if (prov_desc->pd_prov_type != CRYPTO_LOGICAL_PROVIDER) {
ec.ec_provider_type = prov_desc->pd_prov_type;
ec.ec_change = is_added ? CRYPTO_MECH_ADDED :
CRYPTO_MECH_REMOVED;
for (i = 0; i < prov_desc->pd_mech_list_count; i++) {
(void) strlcpy(ec.ec_mech_name,
prov_desc->pd_mechanisms[i].cm_mech_name,
CRYPTO_MAX_MECH_NAME);
kcf_walk_ntfylist(CRYPTO_EVENT_MECHS_CHANGED, &ec);
}
}
/*
* Inform interested clients about the new or departing provider.
* In case of a logical provider, we need to notify the event only
* for the logical provider and not for the underlying
* providers which are known by the KCF_LPROV_MEMBER bit.
*/
if (prov_desc->pd_prov_type == CRYPTO_LOGICAL_PROVIDER ||
(prov_desc->pd_flags & KCF_LPROV_MEMBER) == 0) {
kcf_walk_ntfylist(is_added ? CRYPTO_EVENT_PROVIDER_REGISTERED :
CRYPTO_EVENT_PROVIDER_UNREGISTERED, prov_desc);
ec.ec_change = is_added ? CRYPTO_MECH_ADDED :
CRYPTO_MECH_REMOVED;
for (i = 0; i < prov_desc->pd_mech_list_count; i++) {
(void) strlcpy(ec.ec_mech_name,
prov_desc->pd_mechanisms[i].cm_mech_name,
CRYPTO_MAX_MECH_NAME);
kcf_walk_ntfylist(CRYPTO_EVENT_MECHS_CHANGED, &ec);
}
}

7
module/os/linux/spl/spl-taskq.c
View File

@ -1229,13 +1229,6 @@ taskq_destroy(taskq_t *tq)
}
EXPORT_SYMBOL(taskq_destroy);
boolean_t
taskq_empty(taskq_t *tq)
{
return (tq->tq_lowest_id == tq->tq_next_id);
}
EXPORT_SYMBOL(taskq_empty);
static unsigned int spl_taskq_kick = 0;
/*