From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 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 ... --- crypto/arc4.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 crypto/arc4.c (limited to 'crypto/arc4.c') diff --git a/crypto/arc4.c b/crypto/arc4.c new file mode 100644 index 000000000..160801811 --- /dev/null +++ b/crypto/arc4.c @@ -0,0 +1,82 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Cryptographic API + * + * ARC4 Cipher Algorithm + * + * Jon Oberheide + */ + +#include +#include +#include +#include +#include +#include + +#define ARC4_ALIGN __alignof__(struct arc4_ctx) + +static int crypto_arc4_setkey(struct crypto_lskcipher *tfm, const u8 *in_key, + unsigned int key_len) +{ + struct arc4_ctx *ctx = crypto_lskcipher_ctx(tfm); + + return arc4_setkey(ctx, in_key, key_len); +} + +static int crypto_arc4_crypt(struct crypto_lskcipher *tfm, const u8 *src, + u8 *dst, unsigned nbytes, u8 *siv, u32 flags) +{ + struct arc4_ctx *ctx = crypto_lskcipher_ctx(tfm); + + if (!(flags & CRYPTO_LSKCIPHER_FLAG_CONT)) + memcpy(siv, ctx, sizeof(*ctx)); + + ctx = (struct arc4_ctx *)siv; + + arc4_crypt(ctx, dst, src, nbytes); + return 0; +} + +static int crypto_arc4_init(struct crypto_lskcipher *tfm) +{ + pr_warn_ratelimited("\"%s\" (%ld) uses obsolete ecb(arc4) skcipher\n", + current->comm, (unsigned long)current->pid); + + return 0; +} + +static struct lskcipher_alg arc4_alg = { + .co.base.cra_name = "arc4", + .co.base.cra_driver_name = "arc4-generic", + .co.base.cra_priority = 100, + .co.base.cra_blocksize = ARC4_BLOCK_SIZE, + .co.base.cra_ctxsize = sizeof(struct arc4_ctx), + .co.base.cra_alignmask = ARC4_ALIGN - 1, + .co.base.cra_module = THIS_MODULE, + .co.min_keysize = ARC4_MIN_KEY_SIZE, + .co.max_keysize = ARC4_MAX_KEY_SIZE, + .co.statesize = sizeof(struct arc4_ctx), + .setkey = crypto_arc4_setkey, + .encrypt = crypto_arc4_crypt, + .decrypt = crypto_arc4_crypt, + .init = crypto_arc4_init, +}; + +static int __init arc4_init(void) +{ + return crypto_register_lskcipher(&arc4_alg); +} + +static void __exit arc4_exit(void) +{ + crypto_unregister_lskcipher(&arc4_alg); +} + +module_init(arc4_init); +module_exit(arc4_exit); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("ARC4 Cipher Algorithm"); +MODULE_AUTHOR("Jon Oberheide "); +MODULE_ALIAS_CRYPTO("ecb(arc4)"); -- cgit v1.3.1