1 | /* |
2 | * Copyright (c) 2023 Apple Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | |
29 | #if CONFIG_EXCLAVES |
30 | |
31 | #include <stdint.h> |
32 | #include <mach/exclaves.h> |
33 | #include <mach/kern_return.h> |
34 | |
35 | #include "kern/exclaves.tightbeam.h" |
36 | |
37 | #include "exclaves_frame_mint.h" |
38 | #include "exclaves_resource.h" |
39 | #include "exclaves_debug.h" |
40 | |
41 | /* -------------------------------------------------------------------------- */ |
42 | #pragma mark Frame Mint |
43 | |
44 | #define EXCLAVES_FRAME_MINT "com.apple.service.FrameMint" |
45 | |
46 | static framemint_framemint_s frame_mint_client; |
47 | |
48 | /* |
49 | * Called as part of the populate call. As we can't cleanup tightbeam |
50 | * connections it just sticks around. If we ever need to make any other calls to |
51 | * FrameMint, having it a separate function makes that easier. |
52 | */ |
53 | static kern_return_t |
54 | exclaves_frame_mint_init(void) |
55 | { |
56 | exclaves_id_t id = exclaves_service_lookup(EXCLAVES_DOMAIN_KERNEL, |
57 | EXCLAVES_FRAME_MINT); |
58 | if (id == UINT64_C(~0)) { |
59 | exclaves_debug_printf(show_errors, |
60 | "frame mint init: no frame mint service found \n" ); |
61 | return KERN_NOT_FOUND; |
62 | } |
63 | |
64 | tb_endpoint_t ep = tb_endpoint_create_with_value( |
65 | TB_TRANSPORT_TYPE_XNU, id, TB_ENDPOINT_OPTIONS_NONE); |
66 | |
67 | tb_error_t tb_result = framemint_framemint__init(&frame_mint_client, ep); |
68 | |
69 | if (tb_result != TB_ERROR_SUCCESS) { |
70 | exclaves_debug_printf(show_errors, |
71 | "frame mint init: failure %u\n" , tb_result); |
72 | return KERN_FAILURE; |
73 | } |
74 | |
75 | return KERN_SUCCESS; |
76 | } |
77 | |
78 | kern_return_t |
79 | exclaves_frame_mint_populate(void) |
80 | { |
81 | __block bool success = false; |
82 | tb_error_t tb_result = TB_ERROR_SUCCESS; |
83 | |
84 | kern_return_t kr = exclaves_frame_mint_init(); |
85 | if (kr != KERN_SUCCESS) { |
86 | return kr; |
87 | } |
88 | |
89 | /* BEGIN IGNORE CODESTYLE */ |
90 | tb_result = framemint_framemint_populate(&frame_mint_client, |
91 | ^(framemint_framemint_populate__result_s result) { |
92 | if (framemint_framemint_populate__result_get_success(&result)) { |
93 | success = true; |
94 | return; |
95 | } |
96 | |
97 | framemint_frameminterror_s *error = NULL; |
98 | error = framemint_framemint_populate__result_get_failure(&result); |
99 | |
100 | assert3p(error, !=, NULL); |
101 | exclaves_debug_printf(show_errors, |
102 | "frame mint failure: failure %u\n" , *error); |
103 | }); |
104 | /* END IGNORE CODESTYLE */ |
105 | |
106 | if (tb_result != TB_ERROR_SUCCESS || !success) { |
107 | return KERN_FAILURE; |
108 | } |
109 | |
110 | return KERN_SUCCESS; |
111 | } |
112 | |
113 | #endif /* CONFIG_EXCLAVES */ |
114 | |