diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/ablkcipher.c | 4 | ||||
| -rw-r--r-- | crypto/aead.c | 4 | ||||
| -rw-r--r-- | crypto/crypto_user.c | 80 | ||||
| -rw-r--r-- | crypto/pcrypt.c | 8 |
4 files changed, 87 insertions, 9 deletions
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c index c22374bf9f1e..533de9550a82 100644 --- a/crypto/ablkcipher.c +++ b/crypto/ablkcipher.c @@ -613,8 +613,7 @@ out: return err; } -static struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, - u32 mask) +struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask) { struct crypto_alg *alg; @@ -652,6 +651,7 @@ static struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, return ERR_PTR(crypto_givcipher_default(alg, type, mask)); } +EXPORT_SYMBOL_GPL(crypto_lookup_skcipher); int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name, u32 type, u32 mask) diff --git a/crypto/aead.c b/crypto/aead.c index c772b9c79ee7..0b8121ebec07 100644 --- a/crypto/aead.c +++ b/crypto/aead.c @@ -470,8 +470,7 @@ out: return err; } -static struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, - u32 mask) +struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask) { struct crypto_alg *alg; @@ -503,6 +502,7 @@ static struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, return ERR_PTR(crypto_nivaead_default(alg, type, mask)); } +EXPORT_SYMBOL_GPL(crypto_lookup_aead); int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name, u32 type, u32 mask) diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c index 84a5ac71ecb4..5a37eadb4e56 100644 --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -21,9 +21,13 @@ #include <linux/module.h> #include <linux/crypto.h> #include <linux/cryptouser.h> +#include <linux/sched.h> #include <net/netlink.h> #include <linux/security.h> #include <net/net_namespace.h> +#include <crypto/internal/aead.h> +#include <crypto/internal/skcipher.h> + #include "internal.h" DEFINE_MUTEX(crypto_cfg_mutex); @@ -301,6 +305,60 @@ static int crypto_del_alg(struct sk_buff *skb, struct nlmsghdr *nlh, return crypto_unregister_instance(alg); } +static struct crypto_alg *crypto_user_skcipher_alg(const char *name, u32 type, + u32 mask) +{ + int err; + struct crypto_alg *alg; + + type = crypto_skcipher_type(type); + mask = crypto_skcipher_mask(mask); + + for (;;) { + alg = crypto_lookup_skcipher(name, type, mask); + if (!IS_ERR(alg)) + return alg; + + err = PTR_ERR(alg); + if (err != -EAGAIN) + break; + if (signal_pending(current)) { + err = -EINTR; + break; + } + } + + return ERR_PTR(err); +} + +static struct crypto_alg *crypto_user_aead_alg(const char *name, u32 type, + u32 mask) +{ + int err; + struct crypto_alg *alg; + + type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); + type |= CRYPTO_ALG_TYPE_AEAD; + mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); + mask |= CRYPTO_ALG_TYPE_MASK; + + for (;;) { + alg = crypto_lookup_aead(name, type, mask); + if (!IS_ERR(alg)) + return alg; + + err = PTR_ERR(alg); + if (err != -EAGAIN) + break; + if (signal_pending(current)) { + err = -EINTR; + break; + } + } + + return ERR_PTR(err); +} + static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh, struct nlattr **attrs) { @@ -325,7 +383,19 @@ static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh, else name = p->cru_name; - alg = crypto_alg_mod_lookup(name, p->cru_type, p->cru_mask); + switch (p->cru_type & p->cru_mask & CRYPTO_ALG_TYPE_MASK) { + case CRYPTO_ALG_TYPE_AEAD: + alg = crypto_user_aead_alg(name, p->cru_type, p->cru_mask); + break; + case CRYPTO_ALG_TYPE_GIVCIPHER: + case CRYPTO_ALG_TYPE_BLKCIPHER: + case CRYPTO_ALG_TYPE_ABLKCIPHER: + alg = crypto_user_skcipher_alg(name, p->cru_type, p->cru_mask); + break; + default: + alg = crypto_alg_mod_lookup(name, p->cru_type, p->cru_mask); + } + if (IS_ERR(alg)) return PTR_ERR(alg); @@ -387,12 +457,20 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) if ((type == (CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE) && (nlh->nlmsg_flags & NLM_F_DUMP))) { + struct crypto_alg *alg; + u16 dump_alloc = 0; + if (link->dump == NULL) return -EINVAL; + + list_for_each_entry(alg, &crypto_alg_list, cra_list) + dump_alloc += CRYPTO_REPORT_MAXSIZE; + { struct netlink_dump_control c = { .dump = link->dump, .done = link->done, + .min_dump_alloc = dump_alloc, }; return netlink_dump_start(crypto_nlsk, skb, nlh, &c); } diff --git a/crypto/pcrypt.c b/crypto/pcrypt.c index 29a89dad68b6..b2c99dc1c5e2 100644 --- a/crypto/pcrypt.c +++ b/crypto/pcrypt.c @@ -280,11 +280,11 @@ static int pcrypt_aead_init_tfm(struct crypto_tfm *tfm) ictx->tfm_count++; - cpu_index = ictx->tfm_count % cpumask_weight(cpu_active_mask); + cpu_index = ictx->tfm_count % cpumask_weight(cpu_online_mask); - ctx->cb_cpu = cpumask_first(cpu_active_mask); + ctx->cb_cpu = cpumask_first(cpu_online_mask); for (cpu = 0; cpu < cpu_index; cpu++) - ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_active_mask); + ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_online_mask); cipher = crypto_spawn_aead(crypto_instance_ctx(inst)); @@ -472,7 +472,7 @@ static int pcrypt_init_padata(struct padata_pcrypt *pcrypt, goto err_free_padata; } - cpumask_and(mask->mask, cpu_possible_mask, cpu_active_mask); + cpumask_and(mask->mask, cpu_possible_mask, cpu_online_mask); rcu_assign_pointer(pcrypt->cb_cpumask, mask); pcrypt->nblock.notifier_call = pcrypt_cpumask_change_notify; 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