33 	struct ext4_encryption_context ctx;  in ext4_is_encryption_context_consistent_with_policy()  local
35 				 EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in ext4_is_encryption_context_consistent_with_policy()
36 				 sizeof(ctx));  in ext4_is_encryption_context_consistent_with_policy()
37 	if (res != sizeof(ctx))  in ext4_is_encryption_context_consistent_with_policy()
39 	return (memcmp(ctx.master_key_descriptor, policy->master_key_descriptor,  in ext4_is_encryption_context_consistent_with_policy()
41 		(ctx.flags ==  in ext4_is_encryption_context_consistent_with_policy()
43 		(ctx.contents_encryption_mode ==  in ext4_is_encryption_context_consistent_with_policy()
45 		(ctx.filenames_encryption_mode ==  in ext4_is_encryption_context_consistent_with_policy()
52 	struct ext4_encryption_context ctx;  in ext4_create_encryption_context_from_policy()  local
60 	ctx.format = EXT4_ENCRYPTION_CONTEXT_FORMAT_V1;  in ext4_create_encryption_context_from_policy()
61 	memcpy(ctx.master_key_descriptor, policy->master_key_descriptor,  in ext4_create_encryption_context_from_policy()
77 	ctx.contents_encryption_mode = policy->contents_encryption_mode;  in ext4_create_encryption_context_from_policy()
78 	ctx.filenames_encryption_mode = policy->filenames_encryption_mode;  in ext4_create_encryption_context_from_policy()
79 	ctx.flags = policy->flags;  in ext4_create_encryption_context_from_policy()
80 	BUILD_BUG_ON(sizeof(ctx.nonce) != EXT4_KEY_DERIVATION_NONCE_SIZE);  in ext4_create_encryption_context_from_policy()
81 	get_random_bytes(ctx.nonce, EXT4_KEY_DERIVATION_NONCE_SIZE);  in ext4_create_encryption_context_from_policy()
88 			     EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in ext4_create_encryption_context_from_policy()
89 			     sizeof(ctx), 0);  in ext4_create_encryption_context_from_policy()
127 	struct ext4_encryption_context ctx;  in ext4_get_policy()  local
131 				 &ctx, sizeof(ctx));  in ext4_get_policy()
132 	if (res != sizeof(ctx))  in ext4_get_policy()
134 	if (ctx.format != EXT4_ENCRYPTION_CONTEXT_FORMAT_V1)  in ext4_get_policy()
137 	policy->contents_encryption_mode = ctx.contents_encryption_mode;  in ext4_get_policy()
138 	policy->filenames_encryption_mode = ctx.filenames_encryption_mode;  in ext4_get_policy()
139 	policy->flags = ctx.flags;  in ext4_get_policy()
140 	memcpy(&policy->master_key_descriptor, ctx.master_key_descriptor,  in ext4_get_policy()
192 	struct ext4_encryption_context ctx;  in ext4_inherit_context()  local
203 	ctx.format = EXT4_ENCRYPTION_CONTEXT_FORMAT_V1;  in ext4_inherit_context()
205 		ctx.contents_encryption_mode = EXT4_ENCRYPTION_MODE_AES_256_XTS;  in ext4_inherit_context()
206 		ctx.filenames_encryption_mode =  in ext4_inherit_context()
208 		ctx.flags = 0;  in ext4_inherit_context()
209 		memset(ctx.master_key_descriptor, 0x42,  in ext4_inherit_context()
213 		ctx.contents_encryption_mode = ci->ci_data_mode;  in ext4_inherit_context()
214 		ctx.filenames_encryption_mode = ci->ci_filename_mode;  in ext4_inherit_context()
215 		ctx.flags = ci->ci_flags;  in ext4_inherit_context()
216 		memcpy(ctx.master_key_descriptor, ci->ci_master_key,  in ext4_inherit_context()
219 	get_random_bytes(ctx.nonce, EXT4_KEY_DERIVATION_NONCE_SIZE);  in ext4_inherit_context()
221 			     EXT4_XATTR_NAME_ENCRYPTION_CONTEXT, &ctx,  in ext4_inherit_context()
222 			     sizeof(ctx), 0);  in ext4_inherit_context()