summaryrefslogtreecommitdiffstats
path: root/crypto/algboss.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /crypto/algboss.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'crypto/algboss.c')
-rw-r--r--crypto/algboss.c254
1 files changed, 254 insertions, 0 deletions
diff --git a/crypto/algboss.c b/crypto/algboss.c
new file mode 100644
index 000000000..8b936cae6
--- /dev/null
+++ b/crypto/algboss.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Create default crypto algorithm instances.
+ *
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <crypto/internal/aead.h>
+#include <linux/completion.h>
+#include <linux/ctype.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/rtnetlink.h>
+#include <linux/sched/signal.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+
+#include "internal.h"
+
+struct cryptomgr_param {
+ struct rtattr *tb[CRYPTO_MAX_ATTRS + 2];
+
+ struct {
+ struct rtattr attr;
+ struct crypto_attr_type data;
+ } type;
+
+ struct {
+ struct rtattr attr;
+ struct crypto_attr_alg data;
+ } attrs[CRYPTO_MAX_ATTRS];
+
+ char template[CRYPTO_MAX_ALG_NAME];
+
+ struct crypto_larval *larval;
+
+ u32 otype;
+ u32 omask;
+};
+
+struct crypto_test_param {
+ char driver[CRYPTO_MAX_ALG_NAME];
+ char alg[CRYPTO_MAX_ALG_NAME];
+ u32 type;
+};
+
+static int cryptomgr_probe(void *data)
+{
+ struct cryptomgr_param *param = data;
+ struct crypto_template *tmpl;
+ int err = -ENOENT;
+
+ tmpl = crypto_lookup_template(param->template);
+ if (!tmpl)
+ goto out;
+
+ do {
+ err = tmpl->create(tmpl, param->tb);
+ } while (err == -EAGAIN && !signal_pending(current));
+
+ crypto_tmpl_put(tmpl);
+
+out:
+ param->larval->adult = ERR_PTR(err);
+ param->larval->alg.cra_flags |= CRYPTO_ALG_DEAD;
+ complete_all(&param->larval->completion);
+ crypto_alg_put(&param->larval->alg);
+ kfree(param);
+ module_put_and_kthread_exit(0);
+}
+
+static int cryptomgr_schedule_probe(struct crypto_larval *larval)
+{
+ struct task_struct *thread;
+ struct cryptomgr_param *param;
+ const char *name = larval->alg.cra_name;
+ const char *p;
+ unsigned int len;
+ int i;
+
+ if (!try_module_get(THIS_MODULE))
+ goto err;
+
+ param = kzalloc_obj(*param);
+ if (!param)
+ goto err_put_module;
+
+ for (p = name; isalnum(*p) || *p == '-' || *p == '_'; p++)
+ ;
+
+ len = p - name;
+ if (!len || *p != '(')
+ goto err_free_param;
+
+ memcpy(param->template, name, len);
+
+ i = 0;
+ for (;;) {
+ name = ++p;
+
+ for (; isalnum(*p) || *p == '-' || *p == '_'; p++)
+ ;
+
+ if (*p == '(') {
+ int recursion = 0;
+
+ for (;;) {
+ if (!*++p)
+ goto err_free_param;
+ if (*p == '(')
+ recursion++;
+ else if (*p == ')' && !recursion--)
+ break;
+ }
+
+ p++;
+ }
+
+ len = p - name;
+ if (!len)
+ goto err_free_param;
+
+ param->attrs[i].attr.rta_len = sizeof(param->attrs[i]);
+ param->attrs[i].attr.rta_type = CRYPTOA_ALG;
+ memcpy(param->attrs[i].data.name, name, len);
+
+ param->tb[i + 1] = &param->attrs[i].attr;
+ i++;
+
+ if (i >= CRYPTO_MAX_ATTRS)
+ goto err_free_param;
+
+ if (*p == ')')
+ break;
+
+ if (*p != ',')
+ goto err_free_param;
+ }
+
+ param->tb[i + 1] = NULL;
+
+ param->type.attr.rta_len = sizeof(param->type);
+ param->type.attr.rta_type = CRYPTOA_TYPE;
+ param->type.data.type = larval->alg.cra_flags & ~CRYPTO_ALG_TESTED;
+ param->type.data.mask = larval->mask & ~CRYPTO_ALG_TESTED;
+ param->tb[0] = &param->type.attr;
+
+ param->otype = larval->alg.cra_flags;
+ param->omask = larval->mask;
+
+ crypto_alg_get(&larval->alg);
+ param->larval = larval;
+
+ thread = kthread_run(cryptomgr_probe, param, "cryptomgr_probe");
+ if (IS_ERR(thread))
+ goto err_put_larval;
+
+ return NOTIFY_STOP;
+
+err_put_larval:
+ crypto_alg_put(&larval->alg);
+err_free_param:
+ kfree(param);
+err_put_module:
+ module_put(THIS_MODULE);
+err:
+ return NOTIFY_OK;
+}
+
+static int cryptomgr_test(void *data)
+{
+ struct crypto_test_param *param = data;
+ u32 type = param->type;
+ int err;
+
+ err = alg_test(param->driver, param->alg, type, CRYPTO_ALG_TESTED);
+
+ crypto_alg_tested(param->driver, err);
+
+ kfree(param);
+ module_put_and_kthread_exit(0);
+}
+
+static int cryptomgr_schedule_test(struct crypto_alg *alg)
+{
+ struct task_struct *thread;
+ struct crypto_test_param *param;
+
+ if (!IS_ENABLED(CONFIG_CRYPTO_SELFTESTS))
+ return NOTIFY_DONE;
+
+ if (!try_module_get(THIS_MODULE))
+ goto err;
+
+ param = kzalloc_obj(*param);
+ if (!param)
+ goto err_put_module;
+
+ memcpy(param->driver, alg->cra_driver_name, sizeof(param->driver));
+ memcpy(param->alg, alg->cra_name, sizeof(param->alg));
+ param->type = alg->cra_flags;
+
+ thread = kthread_run(cryptomgr_test, param, "cryptomgr_test");
+ if (IS_ERR(thread))
+ goto err_free_param;
+
+ return NOTIFY_STOP;
+
+err_free_param:
+ kfree(param);
+err_put_module:
+ module_put(THIS_MODULE);
+err:
+ return NOTIFY_OK;
+}
+
+static int cryptomgr_notify(struct notifier_block *this, unsigned long msg,
+ void *data)
+{
+ switch (msg) {
+ case CRYPTO_MSG_ALG_REQUEST:
+ return cryptomgr_schedule_probe(data);
+ case CRYPTO_MSG_ALG_REGISTER:
+ return cryptomgr_schedule_test(data);
+ case CRYPTO_MSG_ALG_LOADED:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block cryptomgr_notifier = {
+ .notifier_call = cryptomgr_notify,
+};
+
+static int __init cryptomgr_init(void)
+{
+ return crypto_register_notifier(&cryptomgr_notifier);
+}
+
+static void __exit cryptomgr_exit(void)
+{
+ int err = crypto_unregister_notifier(&cryptomgr_notifier);
+ BUG_ON(err);
+}
+
+module_init(cryptomgr_init);
+module_exit(cryptomgr_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Crypto Algorithm Manager");