32 	struct ext4_encryption_context ctx;  in ext4_is_encryption_context_consistent_with_policy()  local
34 				 EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in ext4_is_encryption_context_consistent_with_policy()
35 				 sizeof(ctx));  in ext4_is_encryption_context_consistent_with_policy()
36 	if (res != sizeof(ctx))  in ext4_is_encryption_context_consistent_with_policy()
38 	return (memcmp(ctx.master_key_descriptor, policy->master_key_descriptor,  in ext4_is_encryption_context_consistent_with_policy()
40 		(ctx.flags ==  in ext4_is_encryption_context_consistent_with_policy()
42 		(ctx.contents_encryption_mode ==  in ext4_is_encryption_context_consistent_with_policy()
44 		(ctx.filenames_encryption_mode ==  in ext4_is_encryption_context_consistent_with_policy()
51 	struct ext4_encryption_context ctx;  in ext4_create_encryption_context_from_policy()  local
54 	ctx.format = EXT4_ENCRYPTION_CONTEXT_FORMAT_V1;  in ext4_create_encryption_context_from_policy()
55 	memcpy(ctx.master_key_descriptor, policy->master_key_descriptor,  in ext4_create_encryption_context_from_policy()
71 	ctx.contents_encryption_mode = policy->contents_encryption_mode;  in ext4_create_encryption_context_from_policy()
72 	ctx.filenames_encryption_mode = policy->filenames_encryption_mode;  in ext4_create_encryption_context_from_policy()
73 	ctx.flags = policy->flags;  in ext4_create_encryption_context_from_policy()
74 	BUILD_BUG_ON(sizeof(ctx.nonce) != EXT4_KEY_DERIVATION_NONCE_SIZE);  in ext4_create_encryption_context_from_policy()
75 	get_random_bytes(ctx.nonce, EXT4_KEY_DERIVATION_NONCE_SIZE);  in ext4_create_encryption_context_from_policy()
78 			     EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in ext4_create_encryption_context_from_policy()
79 			     sizeof(ctx), 0);  in ext4_create_encryption_context_from_policy()
108 	struct ext4_encryption_context ctx;  in ext4_get_policy()  local
112 				 &ctx, sizeof(ctx));  in ext4_get_policy()
113 	if (res != sizeof(ctx))  in ext4_get_policy()
115 	if (ctx.format != EXT4_ENCRYPTION_CONTEXT_FORMAT_V1)  in ext4_get_policy()
118 	policy->contents_encryption_mode = ctx.contents_encryption_mode;  in ext4_get_policy()
119 	policy->filenames_encryption_mode = ctx.filenames_encryption_mode;  in ext4_get_policy()
120 	policy->flags = ctx.flags;  in ext4_get_policy()
121 	memcpy(&policy->master_key_descriptor, ctx.master_key_descriptor,  in ext4_get_policy()
170 	struct ext4_encryption_context ctx;  in ext4_inherit_context()  local
173 				 &ctx, sizeof(ctx));  in ext4_inherit_context()
175 	if (res != sizeof(ctx)) {  in ext4_inherit_context()
177 			ctx.format = EXT4_ENCRYPTION_CONTEXT_FORMAT_V1;  in ext4_inherit_context()
178 			ctx.contents_encryption_mode =  in ext4_inherit_context()
180 			ctx.filenames_encryption_mode =  in ext4_inherit_context()
182 			ctx.flags = 0;  in ext4_inherit_context()
183 			memset(ctx.master_key_descriptor, 0x42,  in ext4_inherit_context()
190 	get_random_bytes(ctx.nonce, EXT4_KEY_DERIVATION_NONCE_SIZE);  in ext4_inherit_context()
192 			     EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in ext4_inherit_context()
193 			     sizeof(ctx), 0);  in ext4_inherit_context()