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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "components/nacl/loader/nonsfi/irt_interfaces.h" | 5 #include "components/nacl/loader/nonsfi/irt_interfaces.h" |
| 6 | 6 |
| 7 #include <cstring> | 7 #include <cstring> |
| 8 | 8 |
| 9 namespace nacl { | 9 namespace nacl { |
| 10 namespace nonsfi { | 10 namespace nonsfi { |
| 11 | 11 |
| 12 namespace { | 12 namespace { |
| 13 | 13 |
| 14 // This table keeps a pair of IRT entry (such as nacl_irt_basic, nacl_irt_fdio | 14 // This table keeps a pair of IRT entry (such as nacl_irt_basic, nacl_irt_fdio |
| 15 // etc.) and its registered name with its version (such as NACL_IRT_BASIC_v0_1, | 15 // etc.) and its registered name with its version (such as NACL_IRT_BASIC_v0_1, |
| 16 // NACL_IRT_FDIO_v0_1, etc.). | 16 // NACL_IRT_DEV_FDIO_v0_1, etc.). |
| 17 struct NaClInterfaceTable { | 17 struct NaClInterfaceTable { |
| 18 const char* name; | 18 const char* name; |
| 19 const void* table; | 19 const void* table; |
| 20 size_t size; | 20 size_t size; |
| 21 }; | 21 }; |
| 22 | 22 |
| 23 #define NACL_INTERFACE_TABLE(name, value) { name, &value, sizeof(value) } | 23 #define NACL_INTERFACE_TABLE(name, value) { name, &value, sizeof(value) } |
| 24 const NaClInterfaceTable kIrtInterfaces[] = { | 24 const NaClInterfaceTable kIrtInterfaces[] = { |
| 25 NACL_INTERFACE_TABLE(NACL_IRT_BASIC_v0_1, kIrtBasic), | 25 NACL_INTERFACE_TABLE(NACL_IRT_BASIC_v0_1, kIrtBasic), |
| 26 NACL_INTERFACE_TABLE(NACL_IRT_DEV_FDIO_v0_1, kIrtFdIO), |
| 26 }; | 27 }; |
| 27 #undef NACL_INTERFACE_TABLE | 28 #undef NACL_INTERFACE_TABLE |
| 28 | 29 |
| 29 } // namespace | 30 } // namespace |
| 30 | 31 |
| 31 size_t NaClIrtInterface(const char* interface_ident, | 32 size_t NaClIrtInterface(const char* interface_ident, |
| 32 void* table, size_t tablesize) { | 33 void* table, size_t tablesize) { |
| 33 for (size_t i = 0; i < arraysize(kIrtInterfaces); ++i) { | 34 for (size_t i = 0; i < arraysize(kIrtInterfaces); ++i) { |
| 34 if (std::strcmp(interface_ident, kIrtInterfaces[i].name) == 0) { | 35 if (std::strcmp(interface_ident, kIrtInterfaces[i].name) == 0) { |
| 35 const size_t size = kIrtInterfaces[i].size; | 36 const size_t size = kIrtInterfaces[i].size; |
| 36 if (size <= tablesize) { | 37 if (size <= tablesize) { |
| 37 std::memcpy(table, kIrtInterfaces[i].table, size); | 38 std::memcpy(table, kIrtInterfaces[i].table, size); |
| 38 return size; | 39 return size; |
| 39 } | 40 } |
| 40 break; | 41 break; |
| 41 } | 42 } |
| 42 } | 43 } |
| 43 return 0; | 44 return 0; |
| 44 } | 45 } |
| 45 | 46 |
| 46 } // namespace nonsfi | 47 } // namespace nonsfi |
| 47 } // namespace nacl | 48 } // namespace nacl |
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