Merge "cnss: FR: Secure Firmware Download using sha256 hash" (baaea74a) · Commits · e / devices / android_kernel_sony_msm8994

drivers/net/wireless/cnss/cnss.c

+31 −0

Original line number	Diff line number	Diff line
		@@ -40,6 +40,9 @@
		#include <mach/msm_pcie.h>
		#endif
		#include <net/cnss.h>
		#include <linux/crypto.h>
		#include <linux/scatterlist.h>

		#define subsys_to_drv(d) container_of(d, struct cnss_data, subsys_desc)

		#define VREG_ON 1
		@@ -1752,6 +1755,34 @@ void cnss_set_driver_status(enum cnss_driver_status driver_status)
		}
		EXPORT_SYMBOL(cnss_set_driver_status);

		int cnss_get_sha_hash(const u8 data, u32 data_len, u8 hash_idx, u8 *out)
		{
		struct scatterlist sg;
		struct hash_desc desc;
		int ret = 0;

		if (!out) {
		pr_err("memory for output buffer is not allocated\n");
		ret = -EINVAL;
		goto end;
		}

		desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
		desc.tfm = crypto_alloc_hash(hash_idx, 0, CRYPTO_ALG_ASYNC);
		if (IS_ERR(desc.tfm)) {
		pr_err("crypto_alloc_hash failed:%ld\n", PTR_ERR(desc.tfm));
		ret = PTR_ERR(desc.tfm);
		goto end;
		}

		sg_init_one(&sg, data, data_len);
		ret = crypto_hash_digest(&desc, &sg, sg.length, out);
		crypto_free_hash(desc.tfm);
		end:
		return ret;
		}
		EXPORT_SYMBOL(cnss_get_sha_hash);

		module_init(cnss_initialize);
		module_exit(cnss_exit);

+2 −0

Original line number	Diff line number	Diff line
		@@ -90,6 +90,8 @@ extern void cnss_get_boottime(struct timespec *ts);
		extern void cnss_init_work(struct work_struct *work, work_func_t func);
		extern void cnss_init_delayed_work(struct delayed_work *work, work_func_t func);
		extern int cnss_request_bus_bandwidth(int bandwidth);
		extern int cnss_get_sha_hash(const u8 *data, u32 data_len,
		u8 hash_idx, u8 out);

		extern void cnss_pm_wake_lock_init(struct wakeup_source ws, const char name);
		extern void cnss_pm_wake_lock(struct wakeup_source *ws);