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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 22:23:14 (GMT)
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-04 22:23:14 (GMT)
commitb7c8e55db7141dcbb9d5305a3260fa0ed62a1bcc (patch)
tree59fbd52d8e80e5a83d9747961d28aaf4d400613a /crypto
parentffd386a9a8273dcfa61705d0b349eebc7525ef87 (diff)
parent4015d9a865e3bcc42d88bedc8ce1551000bab664 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (39 commits) random: Reorder struct entropy_store to remove padding on 64bits padata: update API documentation padata: Remove padata_get_cpumask crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifier crypto: pcrypt - Rename pcrypt_instance padata: Pass the padata cpumasks to the cpumask_change_notifier chain padata: Rearrange set_cpumask functions padata: Rename padata_alloc functions crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask padata: Check for valid cpumasks padata: Allocate cpumask dependend recources in any case padata: Fix cpu index counting crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used) pcrypt: Added sysfs interface to pcrypt padata: Added sysfs primitives to padata subsystem padata: Make two separate cpumasks padata: update documentation padata: simplify serialization mechanism padata: make padata_do_parallel to return zero on success padata: Handle empty padata cpumasks ...
Diffstat (limited to 'crypto')
-rw-r--r--crypto/Kconfig15
-rw-r--r--crypto/Makefile4
-rw-r--r--crypto/algboss.c4
-rw-r--r--crypto/authenc.c2
-rw-r--r--crypto/ctr.c2
-rw-r--r--crypto/pcrypt.c241
-rw-r--r--crypto/testmgr.c14
-rw-r--r--crypto/twofish_generic.c (renamed from crypto/twofish.c)1
-rw-r--r--crypto/xts.c2
9 files changed, 221 insertions, 64 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 9d9434f..1cd497d 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -80,6 +80,11 @@ config CRYPTO_RNG2
config CRYPTO_PCOMP
tristate
+ select CRYPTO_PCOMP2
+ select CRYPTO_ALGAPI
+
+config CRYPTO_PCOMP2
+ tristate
select CRYPTO_ALGAPI2
config CRYPTO_MANAGER
@@ -94,7 +99,15 @@ config CRYPTO_MANAGER2
select CRYPTO_AEAD2
select CRYPTO_HASH2
select CRYPTO_BLKCIPHER2
- select CRYPTO_PCOMP
+ select CRYPTO_PCOMP2
+
+config CRYPTO_MANAGER_TESTS
+ bool "Run algolithms' self-tests"
+ default y
+ depends on CRYPTO_MANAGER2
+ help
+ Run cryptomanager's tests for the new crypto algorithms being
+ registered.
config CRYPTO_GF128MUL
tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
diff --git a/crypto/Makefile b/crypto/Makefile
index d7e6441..423b7de 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -26,7 +26,7 @@ crypto_hash-objs += ahash.o
crypto_hash-objs += shash.o
obj-$(CONFIG_CRYPTO_HASH2) += crypto_hash.o
-obj-$(CONFIG_CRYPTO_PCOMP) += pcompress.o
+obj-$(CONFIG_CRYPTO_PCOMP2) += pcompress.o
cryptomgr-objs := algboss.o testmgr.o
@@ -61,7 +61,7 @@ obj-$(CONFIG_CRYPTO_CRYPTD) += cryptd.o
obj-$(CONFIG_CRYPTO_DES) += des_generic.o
obj-$(CONFIG_CRYPTO_FCRYPT) += fcrypt.o
obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish.o
-obj-$(CONFIG_CRYPTO_TWOFISH) += twofish.o
+obj-$(CONFIG_CRYPTO_TWOFISH) += twofish_generic.o
obj-$(CONFIG_CRYPTO_TWOFISH_COMMON) += twofish_common.o
obj-$(CONFIG_CRYPTO_SERPENT) += serpent.o
obj-$(CONFIG_CRYPTO_AES) += aes_generic.o
diff --git a/crypto/algboss.c b/crypto/algboss.c
index c3c196b..40bd391 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -206,6 +206,7 @@ err:
return NOTIFY_OK;
}
+#ifdef CONFIG_CRYPTO_MANAGER_TESTS
static int cryptomgr_test(void *data)
{
struct crypto_test_param *param = data;
@@ -266,6 +267,7 @@ err_put_module:
err:
return NOTIFY_OK;
}
+#endif /* CONFIG_CRYPTO_MANAGER_TESTS */
static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
void *data)
@@ -273,8 +275,10 @@ static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
switch (msg) {
case CRYPTO_MSG_ALG_REQUEST:
return cryptomgr_schedule_probe(data);
+#ifdef CONFIG_CRYPTO_MANAGER_TESTS
case CRYPTO_MSG_ALG_REGISTER:
return cryptomgr_schedule_test(data);
+#endif
}
return NOTIFY_DONE;
diff --git a/crypto/authenc.c b/crypto/authenc.c
index b9884ee..a5a22cf 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -616,7 +616,7 @@ static struct crypto_instance *crypto_authenc_alloc(struct rtattr **tb)
auth = ahash_attr_alg(tb[1], CRYPTO_ALG_TYPE_HASH,
CRYPTO_ALG_TYPE_AHASH_MASK);
if (IS_ERR(auth))
- return ERR_PTR(PTR_ERR(auth));
+ return ERR_CAST(auth);
auth_base = &auth->base;
diff --git a/crypto/ctr.c b/crypto/ctr.c
index 6c3bfab..4ca7222 100644
--- a/crypto/ctr.c
+++ b/crypto/ctr.c
@@ -185,7 +185,7 @@ static struct crypto_instance *crypto_ctr_alloc(struct rtattr **tb)
alg = crypto_attr_alg(tb[1], CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
- return ERR_PTR(PTR_ERR(alg));
+ return ERR_CAST(alg);
/* Block size must be >= 4 bytes. */
err = -EINVAL;
diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c
index 247178c..de30782 100644
--- a/crypto/pcrypt.c
+++ b/crypto/pcrypt.c
@@ -24,12 +24,40 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/notifier.h>
+#include <linux/kobject.h>
+#include <linux/cpu.h>
#include <crypto/pcrypt.h>
-static struct padata_instance *pcrypt_enc_padata;
-static struct padata_instance *pcrypt_dec_padata;
-static struct workqueue_struct *encwq;
-static struct workqueue_struct *decwq;
+struct padata_pcrypt {
+ struct padata_instance *pinst;
+ struct workqueue_struct *wq;
+
+ /*
+ * Cpumask for callback CPUs. It should be
+ * equal to serial cpumask of corresponding padata instance,
+ * so it is updated when padata notifies us about serial
+ * cpumask change.
+ *
+ * cb_cpumask is protected by RCU. This fact prevents us from
+ * using cpumask_var_t directly because the actual type of
+ * cpumsak_var_t depends on kernel configuration(particularly on
+ * CONFIG_CPUMASK_OFFSTACK macro). Depending on the configuration
+ * cpumask_var_t may be either a pointer to the struct cpumask
+ * or a variable allocated on the stack. Thus we can not safely use
+ * cpumask_var_t with RCU operations such as rcu_assign_pointer or
+ * rcu_dereference. So cpumask_var_t is wrapped with struct
+ * pcrypt_cpumask which makes possible to use it with RCU.
+ */
+ struct pcrypt_cpumask {
+ cpumask_var_t mask;
+ } *cb_cpumask;
+ struct notifier_block nblock;
+};
+
+static struct padata_pcrypt pencrypt;
+static struct padata_pcrypt pdecrypt;
+static struct kset *pcrypt_kset;
struct pcrypt_instance_ctx {
struct crypto_spawn spawn;
@@ -42,25 +70,32 @@ struct pcrypt_aead_ctx {
};
static int pcrypt_do_parallel(struct padata_priv *padata, unsigned int *cb_cpu,
- struct padata_instance *pinst)
+ struct padata_pcrypt *pcrypt)
{
unsigned int cpu_index, cpu, i;
+ struct pcrypt_cpumask *cpumask;
cpu = *cb_cpu;
- if (cpumask_test_cpu(cpu, cpu_active_mask))
+ rcu_read_lock_bh();
+ cpumask = rcu_dereference(pcrypt->cb_cpumask);
+ if (cpumask_test_cpu(cpu, cpumask->mask))
+ goto out;
+
+ if (!cpumask_weight(cpumask->mask))
goto out;
- cpu_index = cpu % cpumask_weight(cpu_active_mask);
+ cpu_index = cpu % cpumask_weight(cpumask->mask);
- cpu = cpumask_first(cpu_active_mask);
+ cpu = cpumask_first(cpumask->mask);
for (i = 0; i < cpu_index; i++)
- cpu = cpumask_next(cpu, cpu_active_mask);
+ cpu = cpumask_next(cpu, cpumask->mask);
*cb_cpu = cpu;
out:
- return padata_do_parallel(pinst, padata, cpu);
+ rcu_read_unlock_bh();
+ return padata_do_parallel(pcrypt->pinst, padata, cpu);
}
static int pcrypt_aead_setkey(struct crypto_aead *parent,
@@ -142,11 +177,9 @@ static int pcrypt_aead_encrypt(struct aead_request *req)
req->cryptlen, req->iv);
aead_request_set_assoc(creq, req->assoc, req->assoclen);
- err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_enc_padata);
- if (err)
- return err;
- else
- err = crypto_aead_encrypt(creq);
+ err = pcrypt_do_parallel(padata, &ctx->cb_cpu, &pencrypt);
+ if (!err)
+ return -EINPROGRESS;
return err;
}
@@ -186,11 +219,9 @@ static int pcrypt_aead_decrypt(struct aead_request *req)
req->cryptlen, req->iv);
aead_request_set_assoc(creq, req->assoc, req->assoclen);
- err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_dec_padata);
- if (err)
- return err;
- else
- err = crypto_aead_decrypt(creq);
+ err = pcrypt_do_parallel(padata, &ctx->cb_cpu, &pdecrypt);
+ if (!err)
+ return -EINPROGRESS;
return err;
}
@@ -232,11 +263,9 @@ static int pcrypt_aead_givencrypt(struct aead_givcrypt_request *req)
aead_givcrypt_set_assoc(creq, areq->assoc, areq->assoclen);
aead_givcrypt_set_giv(creq, req->giv, req->seq);
- err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_enc_padata);
- if (err)
- return err;
- else
- err = crypto_aead_givencrypt(creq);
+ err = pcrypt_do_parallel(padata, &ctx->cb_cpu, &pencrypt);
+ if (!err)
+ return -EINPROGRESS;
return err;
}
@@ -376,6 +405,115 @@ static void pcrypt_free(struct crypto_instance *inst)
kfree(inst);
}
+static int pcrypt_cpumask_change_notify(struct notifier_block *self,
+ unsigned long val, void *data)
+{
+ struct padata_pcrypt *pcrypt;
+ struct pcrypt_cpumask *new_mask, *old_mask;
+ struct padata_cpumask *cpumask = (struct padata_cpumask *)data;
+
+ if (!(val & PADATA_CPU_SERIAL))
+ return 0;
+
+ pcrypt = container_of(self, struct padata_pcrypt, nblock);
+ new_mask = kmalloc(sizeof(*new_mask), GFP_KERNEL);
+ if (!new_mask)
+ return -ENOMEM;
+ if (!alloc_cpumask_var(&new_mask->mask, GFP_KERNEL)) {
+ kfree(new_mask);
+ return -ENOMEM;
+ }
+
+ old_mask = pcrypt->cb_cpumask;
+
+ cpumask_copy(new_mask->mask, cpumask->cbcpu);
+ rcu_assign_pointer(pcrypt->cb_cpumask, new_mask);
+ synchronize_rcu_bh();
+
+ free_cpumask_var(old_mask->mask);
+ kfree(old_mask);
+ return 0;
+}
+
+static int pcrypt_sysfs_add(struct padata_instance *pinst, const char *name)
+{
+ int ret;
+
+ pinst->kobj.kset = pcrypt_kset;
+ ret = kobject_add(&pinst->kobj, NULL, name);
+ if (!ret)
+ kobject_uevent(&pinst->kobj, KOBJ_ADD);
+
+ return ret;
+}
+
+static int pcrypt_init_padata(struct padata_pcrypt *pcrypt,
+ const char *name)
+{
+ int ret = -ENOMEM;
+ struct pcrypt_cpumask *mask;
+
+ get_online_cpus();
+
+ pcrypt->wq = create_workqueue(name);
+ if (!pcrypt->wq)
+ goto err;
+
+ pcrypt->pinst = padata_alloc_possible(pcrypt->wq);
+ if (!pcrypt->pinst)
+ goto err_destroy_workqueue;
+
+ mask = kmalloc(sizeof(*mask), GFP_KERNEL);
+ if (!mask)
+ goto err_free_padata;
+ if (!alloc_cpumask_var(&mask->mask, GFP_KERNEL)) {
+ kfree(mask);
+ goto err_free_padata;
+ }
+
+ cpumask_and(mask->mask, cpu_possible_mask, cpu_active_mask);
+ rcu_assign_pointer(pcrypt->cb_cpumask, mask);
+
+ pcrypt->nblock.notifier_call = pcrypt_cpumask_change_notify;
+ ret = padata_register_cpumask_notifier(pcrypt->pinst, &pcrypt->nblock);
+ if (ret)
+ goto err_free_cpumask;
+
+ ret = pcrypt_sysfs_add(pcrypt->pinst, name);
+ if (ret)
+ goto err_unregister_notifier;
+
+ put_online_cpus();
+
+ return ret;
+
+err_unregister_notifier:
+ padata_unregister_cpumask_notifier(pcrypt->pinst, &pcrypt->nblock);
+err_free_cpumask:
+ free_cpumask_var(mask->mask);
+ kfree(mask);
+err_free_padata:
+ padata_free(pcrypt->pinst);
+err_destroy_workqueue:
+ destroy_workqueue(pcrypt->wq);
+err:
+ put_online_cpus();
+
+ return ret;
+}
+
+static void pcrypt_fini_padata(struct padata_pcrypt *pcrypt)
+{
+ kobject_put(&pcrypt->pinst->kobj);
+ free_cpumask_var(pcrypt->cb_cpumask->mask);
+ kfree(pcrypt->cb_cpumask);
+
+ padata_stop(pcrypt->pinst);
+ padata_unregister_cpumask_notifier(pcrypt->pinst, &pcrypt->nblock);
+ destroy_workqueue(pcrypt->wq);
+ padata_free(pcrypt->pinst);
+}
+
static struct crypto_template pcrypt_tmpl = {
.name = "pcrypt",
.alloc = pcrypt_alloc,
@@ -385,52 +523,39 @@ static struct crypto_template pcrypt_tmpl = {
static int __init pcrypt_init(void)
{
- encwq = create_workqueue("pencrypt");
- if (!encwq)
- goto err;
-
- decwq = create_workqueue("pdecrypt");
- if (!decwq)
- goto err_destroy_encwq;
+ int err = -ENOMEM;
+ pcrypt_kset = kset_create_and_add("pcrypt", NULL, kernel_kobj);
+ if (!pcrypt_kset)
+ goto err;
- pcrypt_enc_padata = padata_alloc(cpu_possible_mask, encwq);
- if (!pcrypt_enc_padata)
- goto err_destroy_decwq;
+ err = pcrypt_init_padata(&pencrypt, "pencrypt");
+ if (err)
+ goto err_unreg_kset;
- pcrypt_dec_padata = padata_alloc(cpu_possible_mask, decwq);
- if (!pcrypt_dec_padata)
- goto err_free_padata;
+ err = pcrypt_init_padata(&pdecrypt, "pdecrypt");
+ if (err)
+ goto err_deinit_pencrypt;
- padata_start(pcrypt_enc_padata);
- padata_start(pcrypt_dec_padata);
+ padata_start(pencrypt.pinst);
+ padata_start(pdecrypt.pinst);
return crypto_register_template(&pcrypt_tmpl);
-err_free_padata:
- padata_free(pcrypt_enc_padata);
-
-err_destroy_decwq:
- destroy_workqueue(decwq);
-
-err_destroy_encwq:
- destroy_workqueue(encwq);
-
+err_deinit_pencrypt:
+ pcrypt_fini_padata(&pencrypt);
+err_unreg_kset:
+ kset_unregister(pcrypt_kset);
err:
- return -ENOMEM;
+ return err;
}
static void __exit pcrypt_exit(void)
{
- padata_stop(pcrypt_enc_padata);
- padata_stop(pcrypt_dec_padata);
-
- destroy_workqueue(encwq);
- destroy_workqueue(decwq);
-
- padata_free(pcrypt_enc_padata);
- padata_free(pcrypt_dec_padata);
+ pcrypt_fini_padata(&pencrypt);
+ pcrypt_fini_padata(&pdecrypt);
+ kset_unregister(pcrypt_kset);
crypto_unregister_template(&pcrypt_tmpl);
}
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 5c8aaa0..abd980c7 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -22,6 +22,17 @@
#include <crypto/rng.h>
#include "internal.h"
+
+#ifndef CONFIG_CRYPTO_MANAGER_TESTS
+
+/* a perfect nop */
+int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
+{
+ return 0;
+}
+
+#else
+
#include "testmgr.h"
/*
@@ -2530,4 +2541,7 @@ notest:
non_fips_alg:
return -EINVAL;
}
+
+#endif /* CONFIG_CRYPTO_MANAGER_TESTS */
+
EXPORT_SYMBOL_GPL(alg_test);
diff --git a/crypto/twofish.c b/crypto/twofish_generic.c
index dfcda23..1f07b84 100644
--- a/crypto/twofish.c
+++ b/crypto/twofish_generic.c
@@ -212,3 +212,4 @@ module_exit(twofish_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION ("Twofish Cipher Algorithm");
+MODULE_ALIAS("twofish");
diff --git a/crypto/xts.c b/crypto/xts.c
index d87b0f3..555ecaa 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -224,7 +224,7 @@ static struct crypto_instance *alloc(struct rtattr **tb)
alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_CIPHER,
CRYPTO_ALG_TYPE_MASK);
if (IS_ERR(alg))
- return ERR_PTR(PTR_ERR(alg));
+ return ERR_CAST(alg);
inst = crypto_alloc_instance("xts", alg);
if (IS_ERR(inst))

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