35 	struct f2fs_encryption_context ctx;  in f2fs_is_encryption_context_consistent_with_policy()  local
37 				F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in f2fs_is_encryption_context_consistent_with_policy()
38 				sizeof(ctx), NULL);  in f2fs_is_encryption_context_consistent_with_policy()
40 	if (res != sizeof(ctx))  in f2fs_is_encryption_context_consistent_with_policy()
43 	return (memcmp(ctx.master_key_descriptor, policy->master_key_descriptor,  in f2fs_is_encryption_context_consistent_with_policy()
45 			(ctx.flags == policy->flags) &&  in f2fs_is_encryption_context_consistent_with_policy()
46 			(ctx.contents_encryption_mode ==  in f2fs_is_encryption_context_consistent_with_policy()
48 			(ctx.filenames_encryption_mode ==  in f2fs_is_encryption_context_consistent_with_policy()
55 	struct f2fs_encryption_context ctx;  in f2fs_create_encryption_context_from_policy()  local
57 	ctx.format = F2FS_ENCRYPTION_CONTEXT_FORMAT_V1;  in f2fs_create_encryption_context_from_policy()
58 	memcpy(ctx.master_key_descriptor, policy->master_key_descriptor,  in f2fs_create_encryption_context_from_policy()
78 	ctx.contents_encryption_mode = policy->contents_encryption_mode;  in f2fs_create_encryption_context_from_policy()
79 	ctx.filenames_encryption_mode = policy->filenames_encryption_mode;  in f2fs_create_encryption_context_from_policy()
80 	ctx.flags = policy->flags;  in f2fs_create_encryption_context_from_policy()
81 	BUILD_BUG_ON(sizeof(ctx.nonce) != F2FS_KEY_DERIVATION_NONCE_SIZE);  in f2fs_create_encryption_context_from_policy()
82 	get_random_bytes(ctx.nonce, F2FS_KEY_DERIVATION_NONCE_SIZE);  in f2fs_create_encryption_context_from_policy()
85 			F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in f2fs_create_encryption_context_from_policy()
86 			sizeof(ctx), NULL, XATTR_CREATE);  in f2fs_create_encryption_context_from_policy()
115 	struct f2fs_encryption_context ctx;  in f2fs_get_policy()  local
123 				&ctx, sizeof(ctx), NULL);  in f2fs_get_policy()
124 	if (res != sizeof(ctx))  in f2fs_get_policy()
126 	if (ctx.format != F2FS_ENCRYPTION_CONTEXT_FORMAT_V1)  in f2fs_get_policy()
130 	policy->contents_encryption_mode = ctx.contents_encryption_mode;  in f2fs_get_policy()
131 	policy->filenames_encryption_mode = ctx.filenames_encryption_mode;  in f2fs_get_policy()
132 	policy->flags = ctx.flags;  in f2fs_get_policy()
133 	memcpy(&policy->master_key_descriptor, ctx.master_key_descriptor,  in f2fs_get_policy()
186 	struct f2fs_encryption_context ctx;  in f2fs_inherit_context()  local
197 	ctx.format = F2FS_ENCRYPTION_CONTEXT_FORMAT_V1;  in f2fs_inherit_context()
199 	ctx.contents_encryption_mode = ci->ci_data_mode;  in f2fs_inherit_context()
200 	ctx.filenames_encryption_mode = ci->ci_filename_mode;  in f2fs_inherit_context()
201 	ctx.flags = ci->ci_flags;  in f2fs_inherit_context()
202 	memcpy(ctx.master_key_descriptor, ci->ci_master_key,  in f2fs_inherit_context()
205 	get_random_bytes(ctx.nonce, F2FS_KEY_DERIVATION_NONCE_SIZE);  in f2fs_inherit_context()
207 				F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in f2fs_inherit_context()
208 				sizeof(ctx), ipage, XATTR_CREATE);  in f2fs_inherit_context()