1 #ifndef __UVWASI_SERDES_H__ 2 #define __UVWASI_SERDES_H__ 3 4 #include "wasi_types.h" 5 6 /* Basic uint{8,16,32,64}_t read/write functions. */ 7 8 #define BASIC_TYPE(name, type) \ 9 void uvwasi_serdes_write_##name(void* ptr, size_t offset, type value); \ 10 type uvwasi_serdes_read_##name(const void* ptr, size_t offset); \ 11 12 #define BASIC_TYPE_UVWASI(type) BASIC_TYPE(type, uvwasi_##type) 13 14 #define UVWASI_SERDES_SIZE_uint8_t sizeof(uint8_t) 15 BASIC_TYPE(uint8_t, uint8_t) 16 #define UVWASI_SERDES_SIZE_uint16_t sizeof(uint16_t) 17 BASIC_TYPE(uint16_t, uint16_t) 18 #define UVWASI_SERDES_SIZE_uint32_t sizeof(uint32_t) 19 BASIC_TYPE(uint32_t, uint32_t) 20 #define UVWASI_SERDES_SIZE_uint64_t sizeof(uint64_t) 21 BASIC_TYPE(uint64_t, uint64_t) 22 23 #define UVWASI_SERDES_SIZE_advice_t sizeof(uvwasi_advice_t) 24 BASIC_TYPE_UVWASI(advice_t) 25 #define UVWASI_SERDES_SIZE_clockid_t sizeof(uvwasi_clockid_t) 26 BASIC_TYPE_UVWASI(clockid_t) 27 #define UVWASI_SERDES_SIZE_device_t sizeof(uvwasi_device_t) 28 BASIC_TYPE_UVWASI(device_t) 29 #define UVWASI_SERDES_SIZE_dircookie_t sizeof(uvwasi_dircookie_t) 30 BASIC_TYPE_UVWASI(dircookie_t) 31 #define UVWASI_SERDES_SIZE_eventrwflags_t sizeof(uvwasi_eventrwflags_t) 32 BASIC_TYPE_UVWASI(eventrwflags_t) 33 #define UVWASI_SERDES_SIZE_eventtype_t sizeof(uvwasi_eventtype_t) 34 BASIC_TYPE_UVWASI(eventtype_t) 35 #define UVWASI_SERDES_SIZE_exitcode_t sizeof(uvwasi_exitcode_t) 36 BASIC_TYPE_UVWASI(exitcode_t) 37 #define UVWASI_SERDES_SIZE_fd_t sizeof(uvwasi_fd_t) 38 BASIC_TYPE_UVWASI(fd_t) 39 #define UVWASI_SERDES_SIZE_fdflags_t sizeof(uvwasi_fdflags_t) 40 BASIC_TYPE_UVWASI(fdflags_t) 41 #define UVWASI_SERDES_SIZE_filesize_t sizeof(uvwasi_filesize_t) 42 BASIC_TYPE_UVWASI(filesize_t) 43 #define UVWASI_SERDES_SIZE_fstflags_t sizeof(uvwasi_fstflags_t) 44 BASIC_TYPE_UVWASI(fstflags_t) 45 #define UVWASI_SERDES_SIZE_inode_t sizeof(uvwasi_inode_t) 46 BASIC_TYPE_UVWASI(inode_t) 47 #define UVWASI_SERDES_SIZE_linkcount_t sizeof(uvwasi_linkcount_t) 48 BASIC_TYPE_UVWASI(linkcount_t) 49 #define UVWASI_SERDES_SIZE_lookupflags_t sizeof(uvwasi_lookupflags_t) 50 BASIC_TYPE_UVWASI(lookupflags_t) 51 #define UVWASI_SERDES_SIZE_oflags_t sizeof(uvwasi_oflags_t) 52 BASIC_TYPE_UVWASI(oflags_t) 53 #define UVWASI_SERDES_SIZE_preopentype_t sizeof(uvwasi_preopentype_t) 54 BASIC_TYPE_UVWASI(preopentype_t) 55 #define UVWASI_SERDES_SIZE_riflags_t sizeof(uvwasi_riflags_t) 56 BASIC_TYPE_UVWASI(riflags_t) 57 #define UVWASI_SERDES_SIZE_rights_t sizeof(uvwasi_rights_t) 58 BASIC_TYPE_UVWASI(rights_t) 59 #define UVWASI_SERDES_SIZE_roflags_t sizeof(uvwasi_roflags_t) 60 BASIC_TYPE_UVWASI(roflags_t) 61 #define UVWASI_SERDES_SIZE_sdflags_t sizeof(uvwasi_sdflags_t) 62 BASIC_TYPE_UVWASI(sdflags_t) 63 #define UVWASI_SERDES_SIZE_siflags_t sizeof(uvwasi_siflags_t) 64 BASIC_TYPE_UVWASI(siflags_t) 65 #define UVWASI_SERDES_SIZE_size_t sizeof(uvwasi_size_t) 66 BASIC_TYPE_UVWASI(size_t) 67 #define UVWASI_SERDES_SIZE_inode_t sizeof(uvwasi_inode_t) 68 BASIC_TYPE_UVWASI(inode_t) 69 #define UVWASI_SERDES_SIZE_signal_t sizeof(uvwasi_signal_t) 70 BASIC_TYPE_UVWASI(signal_t) 71 #define UVWASI_SERDES_SIZE_subclockflags_t sizeof(uvwasi_subclockflags_t) 72 BASIC_TYPE_UVWASI(subclockflags_t) 73 #define UVWASI_SERDES_SIZE_timestamp_t sizeof(uvwasi_timestamp_t) 74 BASIC_TYPE_UVWASI(timestamp_t) 75 #define UVWASI_SERDES_SIZE_userdata_t sizeof(uvwasi_userdata_t) 76 BASIC_TYPE_UVWASI(userdata_t) 77 #define UVWASI_SERDES_SIZE_whence_t sizeof(uvwasi_whence_t) 78 BASIC_TYPE_UVWASI(whence_t) 79 80 #undef BASIC_TYPE_UVWASI 81 #undef BASIC_TYPE 82 83 /* WASI structure read/write functions. */ 84 85 #define STRUCT(name) \ 86 void uvwasi_serdes_write_##name(void* ptr, \ 87 size_t offset, \ 88 const uvwasi_##name* value); \ 89 void uvwasi_serdes_read_##name(const void* ptr, \ 90 size_t offset, \ 91 uvwasi_##name* value); 92 93 /* iovs currently only need to be read from WASM memory. */ 94 #define IOVS_STRUCT(name) \ 95 uvwasi_errno_t uvwasi_serdes_read_##name(const void* ptr, \ 96 size_t end, \ 97 size_t offset, \ 98 uvwasi_##name* value); 99 100 #define UVWASI_SERDES_SIZE_ciovec_t 8 101 IOVS_STRUCT(ciovec_t) 102 103 #define UVWASI_SERDES_SIZE_iovec_t 8 104 IOVS_STRUCT(iovec_t) 105 106 #define UVWASI_SERDES_SIZE_dirent_t 24 107 STRUCT(dirent_t) 108 109 #define UVWASI_SERDES_SIZE_fdstat_t 24 110 STRUCT(fdstat_t) 111 112 #define UVWASI_SERDES_SIZE_filestat_t 64 113 STRUCT(filestat_t) 114 115 #define UVWASI_SERDES_SIZE_prestat_t 8 116 STRUCT(prestat_t) 117 118 #define UVWASI_SERDES_SIZE_event_t 32 119 STRUCT(event_t) 120 121 #define UVWASI_SERDES_SIZE_subscription_t 48 122 STRUCT(subscription_t) 123 124 #undef STRUCT 125 #undef IOVS_STRUCT 126 127 uvwasi_errno_t uvwasi_serdes_readv_ciovec_t(const void* ptr, 128 size_t end, 129 size_t offset, 130 uvwasi_ciovec_t* iovs, 131 uvwasi_size_t iovs_len); 132 133 uvwasi_errno_t uvwasi_serdes_readv_iovec_t(const void* ptr, 134 size_t end, 135 size_t offset, 136 uvwasi_iovec_t* iovs, 137 uvwasi_size_t iovs_len); 138 139 /* Helper functions for memory bounds checking. */ 140 int uvwasi_serdes_check_bounds(size_t offset, size_t end, size_t size); 141 int uvwasi_serdes_check_array_bounds(size_t offset, 142 size_t end, 143 size_t size, 144 size_t count); 145 146 #endif /* __UVWASI_SERDES_H__ */ 147