Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 1 | #include <endian.h> |
| 2 | #include <string.h> |
| 3 | |
| 4 | #include "base.h" |
| 5 | |
Tom Joseph | 4125104 | 2019-02-07 16:17:07 +0530 | [diff] [blame] | 6 | int pack_pldm_header(const struct pldm_header_info *hdr, |
| 7 | struct pldm_msg_hdr *msg) |
| 8 | { |
| 9 | if (msg == NULL || hdr == NULL) { |
| 10 | return PLDM_ERROR_INVALID_DATA; |
| 11 | } |
| 12 | |
| 13 | if (hdr->msg_type != PLDM_RESPONSE && hdr->msg_type != PLDM_REQUEST && |
| 14 | hdr->msg_type != PLDM_ASYNC_REQUEST_NOTIFY) { |
| 15 | return PLDM_ERROR_INVALID_DATA; |
| 16 | } |
| 17 | |
| 18 | if (hdr->instance > PLDM_INSTANCE_MAX) { |
| 19 | return PLDM_ERROR_INVALID_DATA; |
| 20 | } |
| 21 | |
| 22 | if (hdr->pldm_type > (PLDM_MAX_TYPES - 1)) { |
| 23 | return PLDM_ERROR_INVALID_PLDM_TYPE; |
| 24 | } |
| 25 | |
| 26 | uint8_t datagram = (hdr->msg_type == PLDM_ASYNC_REQUEST_NOTIFY) ? 1 : 0; |
| 27 | |
| 28 | if (hdr->msg_type == PLDM_RESPONSE) { |
| 29 | msg->request = PLDM_RESPONSE; |
| 30 | } else if (hdr->msg_type == PLDM_REQUEST || |
| 31 | hdr->msg_type == PLDM_ASYNC_REQUEST_NOTIFY) { |
| 32 | msg->request = PLDM_REQUEST; |
| 33 | } |
| 34 | msg->datagram = datagram; |
| 35 | msg->reserved = 0; |
| 36 | msg->instance_id = hdr->instance; |
| 37 | msg->header_ver = 0; |
| 38 | msg->type = hdr->pldm_type; |
| 39 | msg->command = hdr->command; |
| 40 | |
| 41 | return PLDM_SUCCESS; |
| 42 | } |
| 43 | |
| 44 | int unpack_pldm_header(const struct pldm_msg_hdr *msg, |
| 45 | struct pldm_header_info *hdr) |
| 46 | { |
| 47 | if (msg == NULL) { |
| 48 | return PLDM_ERROR_INVALID_DATA; |
| 49 | } |
| 50 | |
| 51 | if (msg->request == PLDM_RESPONSE) { |
| 52 | hdr->msg_type = PLDM_RESPONSE; |
| 53 | } else { |
| 54 | hdr->msg_type = |
| 55 | msg->datagram ? PLDM_ASYNC_REQUEST_NOTIFY : PLDM_REQUEST; |
| 56 | } |
| 57 | |
| 58 | hdr->instance = msg->instance_id; |
| 59 | hdr->pldm_type = msg->type; |
| 60 | hdr->command = msg->command; |
| 61 | |
| 62 | return PLDM_SUCCESS; |
| 63 | } |
| 64 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 65 | int encode_get_types_req(uint8_t instance_id, struct pldm_msg *msg) |
| 66 | { |
| 67 | if (msg == NULL) { |
| 68 | return PLDM_ERROR_INVALID_DATA; |
| 69 | } |
| 70 | |
Deepak Kodihalli | 67ec465 | 2019-02-16 07:00:48 -0600 | [diff] [blame] | 71 | struct pldm_header_info header = {0}; |
| 72 | header.instance = instance_id; |
| 73 | header.msg_type = PLDM_REQUEST; |
| 74 | header.command = PLDM_GET_PLDM_TYPES; |
| 75 | pack_pldm_header(&header, &(msg->hdr)); |
| 76 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 77 | return PLDM_SUCCESS; |
| 78 | } |
| 79 | |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 80 | int encode_get_commands_req(uint8_t instance_id, uint8_t type, ver32_t version, |
| 81 | struct pldm_msg *msg) |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 82 | { |
| 83 | if (msg == NULL) { |
| 84 | return PLDM_ERROR_INVALID_DATA; |
| 85 | } |
| 86 | |
Deepak Kodihalli | 67ec465 | 2019-02-16 07:00:48 -0600 | [diff] [blame] | 87 | struct pldm_header_info header = {0}; |
| 88 | header.instance = instance_id; |
| 89 | header.msg_type = PLDM_REQUEST; |
| 90 | header.command = PLDM_GET_PLDM_COMMANDS; |
| 91 | pack_pldm_header(&header, &(msg->hdr)); |
| 92 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 93 | uint8_t *dst = msg->body.payload; |
| 94 | memcpy(dst, &type, sizeof(type)); |
| 95 | dst += sizeof(type); |
| 96 | memcpy(dst, &version, sizeof(version)); |
| 97 | |
| 98 | return PLDM_SUCCESS; |
| 99 | } |
| 100 | |
| 101 | int encode_get_types_resp(uint8_t instance_id, uint8_t completion_code, |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 102 | const bitfield8_t *types, struct pldm_msg *msg) |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 103 | { |
| 104 | if (msg == NULL) { |
| 105 | return PLDM_ERROR_INVALID_DATA; |
| 106 | } |
| 107 | |
| 108 | msg->body.payload[0] = completion_code; |
Deepak Kodihalli | 67ec465 | 2019-02-16 07:00:48 -0600 | [diff] [blame] | 109 | |
| 110 | struct pldm_header_info header = {0}; |
| 111 | header.instance = instance_id; |
| 112 | header.msg_type = PLDM_RESPONSE; |
| 113 | header.command = PLDM_GET_PLDM_TYPES; |
| 114 | pack_pldm_header(&header, &(msg->hdr)); |
| 115 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 116 | if (msg->body.payload[0] == PLDM_SUCCESS) { |
| 117 | if (types == NULL) { |
| 118 | return PLDM_ERROR_INVALID_DATA; |
| 119 | } |
| 120 | uint8_t *dst = msg->body.payload + sizeof(msg->body.payload[0]); |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 121 | memcpy(dst, &(types->byte), PLDM_MAX_TYPES / 8); |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 122 | } |
| 123 | |
| 124 | return PLDM_SUCCESS; |
| 125 | } |
| 126 | |
| 127 | int decode_get_commands_req(const struct pldm_msg_payload *msg, uint8_t *type, |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 128 | ver32_t *version) |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 129 | { |
| 130 | if (msg == NULL || type == NULL || version == NULL) { |
| 131 | return PLDM_ERROR_INVALID_DATA; |
| 132 | } |
| 133 | |
| 134 | const uint8_t *start = msg->payload; |
| 135 | *type = *start; |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 136 | memcpy(version, (ver32_t *)(start + sizeof(*type)), sizeof(*version)); |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 137 | |
| 138 | return PLDM_SUCCESS; |
| 139 | } |
| 140 | |
| 141 | int encode_get_commands_resp(uint8_t instance_id, uint8_t completion_code, |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 142 | const bitfield8_t *commands, struct pldm_msg *msg) |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 143 | { |
| 144 | if (msg == NULL) { |
| 145 | return PLDM_ERROR_INVALID_DATA; |
| 146 | } |
| 147 | |
| 148 | msg->body.payload[0] = completion_code; |
Deepak Kodihalli | 67ec465 | 2019-02-16 07:00:48 -0600 | [diff] [blame] | 149 | |
| 150 | struct pldm_header_info header = {0}; |
| 151 | header.instance = instance_id; |
| 152 | header.msg_type = PLDM_RESPONSE; |
| 153 | header.command = PLDM_GET_PLDM_COMMANDS; |
| 154 | pack_pldm_header(&header, &(msg->hdr)); |
| 155 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 156 | if (msg->body.payload[0] == PLDM_SUCCESS) { |
| 157 | if (commands == NULL) { |
| 158 | return PLDM_ERROR_INVALID_DATA; |
| 159 | } |
| 160 | uint8_t *dst = msg->body.payload + sizeof(msg->body.payload[0]); |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 161 | memcpy(dst, &(commands->byte), PLDM_MAX_CMDS_PER_TYPE / 8); |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 162 | } |
| 163 | |
| 164 | return PLDM_SUCCESS; |
| 165 | } |
| 166 | |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 167 | int decode_get_types_resp(const struct pldm_msg_payload *msg, |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 168 | uint8_t *completion_code, bitfield8_t *types) |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 169 | { |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 170 | if (msg == NULL || types == NULL || msg->payload == NULL || |
| 171 | completion_code == NULL) { |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 172 | return PLDM_ERROR_INVALID_DATA; |
| 173 | } |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 174 | |
| 175 | *completion_code = msg->payload[0]; |
| 176 | if (PLDM_SUCCESS != *completion_code) { |
| 177 | return PLDM_SUCCESS; |
| 178 | }; |
| 179 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 180 | const uint8_t *src = msg->payload + sizeof(uint8_t); |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 181 | memcpy(&(types->byte), src, PLDM_MAX_TYPES / 8); |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 182 | |
| 183 | return PLDM_SUCCESS; |
| 184 | } |
| 185 | |
| 186 | int decode_get_commands_resp(const struct pldm_msg_payload *msg, |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 187 | uint8_t *completion_code, bitfield8_t *commands) |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 188 | { |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 189 | if (msg == NULL || commands == NULL || msg->payload == NULL || |
| 190 | completion_code == NULL) { |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 191 | return PLDM_ERROR_INVALID_DATA; |
| 192 | } |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 193 | |
| 194 | *completion_code = msg->payload[0]; |
| 195 | if (PLDM_SUCCESS != *completion_code) { |
| 196 | return PLDM_SUCCESS; |
| 197 | }; |
| 198 | |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 199 | const uint8_t *src = msg->payload + sizeof(uint8_t); |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 200 | memcpy(&(commands->byte), src, PLDM_MAX_CMDS_PER_TYPE / 8); |
Deepak Kodihalli | 1b24f97 | 2019-02-01 04:09:13 -0600 | [diff] [blame] | 201 | |
| 202 | return PLDM_SUCCESS; |
| 203 | } |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame] | 204 | |
| 205 | int encode_get_version_req(uint8_t instance_id, uint32_t transfer_handle, |
| 206 | uint8_t transfer_opflag, uint8_t type, |
| 207 | struct pldm_msg *msg) |
| 208 | { |
| 209 | struct pldm_header_info header = {0}; |
| 210 | int rc = PLDM_SUCCESS; |
| 211 | |
| 212 | if (NULL == msg) { |
| 213 | return PLDM_ERROR_INVALID_DATA; |
| 214 | } |
| 215 | |
| 216 | header.msg_type = PLDM_REQUEST; |
| 217 | header.instance = instance_id; |
| 218 | header.pldm_type = PLDM_BASE; |
| 219 | header.command = PLDM_GET_PLDM_VERSION; |
| 220 | |
| 221 | if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) { |
| 222 | return rc; |
| 223 | } |
| 224 | |
| 225 | uint8_t *dst = msg->body.payload; |
| 226 | transfer_handle = htole32(transfer_handle); |
| 227 | memcpy(dst, &transfer_handle, sizeof(transfer_handle)); |
| 228 | dst += sizeof(transfer_handle); |
| 229 | |
| 230 | memcpy(dst, &transfer_opflag, sizeof(transfer_opflag)); |
| 231 | dst += sizeof(transfer_opflag); |
| 232 | |
| 233 | memcpy(dst, &type, sizeof(type)); |
| 234 | |
| 235 | return PLDM_SUCCESS; |
| 236 | } |
| 237 | |
| 238 | int encode_get_version_resp(uint8_t instance_id, uint8_t completion_code, |
| 239 | uint32_t next_transfer_handle, |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 240 | uint8_t transfer_flag, const ver32_t *version_data, |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame] | 241 | size_t version_size, struct pldm_msg *msg) |
| 242 | { |
| 243 | struct pldm_header_info header = {0}; |
| 244 | int rc = PLDM_SUCCESS; |
| 245 | |
| 246 | msg->body.payload[0] = completion_code; |
| 247 | if (msg->body.payload[0] == PLDM_SUCCESS) { |
| 248 | |
| 249 | header.msg_type = PLDM_RESPONSE; |
| 250 | header.instance = instance_id; |
| 251 | header.pldm_type = PLDM_BASE; |
| 252 | header.command = PLDM_GET_PLDM_VERSION; |
| 253 | |
| 254 | if ((rc = pack_pldm_header(&header, &(msg->hdr))) > |
| 255 | PLDM_SUCCESS) { |
| 256 | return rc; |
| 257 | } |
| 258 | uint8_t *dst = msg->body.payload + sizeof(msg->body.payload[0]); |
| 259 | |
| 260 | next_transfer_handle = htole32(next_transfer_handle); |
| 261 | |
| 262 | memcpy(dst, &next_transfer_handle, |
| 263 | sizeof(next_transfer_handle)); |
| 264 | dst += sizeof(next_transfer_handle); |
| 265 | memcpy(dst, &transfer_flag, sizeof(transfer_flag)); |
| 266 | |
| 267 | dst += sizeof(transfer_flag); |
| 268 | memcpy(dst, version_data, version_size); |
| 269 | } |
| 270 | return PLDM_SUCCESS; |
| 271 | } |
| 272 | |
| 273 | int decode_get_version_req(const struct pldm_msg_payload *msg, |
| 274 | uint32_t *transfer_handle, uint8_t *transfer_opflag, |
| 275 | uint8_t *type) |
| 276 | { |
| 277 | const uint8_t *start = msg->payload; |
| 278 | *transfer_handle = le32toh(*((uint32_t *)start)); |
| 279 | *transfer_opflag = *(start + sizeof(*transfer_handle)); |
| 280 | *type = *(start + sizeof(*transfer_handle) + sizeof(*transfer_opflag)); |
| 281 | |
| 282 | return PLDM_SUCCESS; |
| 283 | } |
| 284 | |
| 285 | int decode_get_version_resp(const struct pldm_msg_payload *msg, |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 286 | uint8_t *completion_code, |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame] | 287 | uint32_t *next_transfer_handle, |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 288 | uint8_t *transfer_flag, ver32_t *version) |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame] | 289 | { |
Deepak Kodihalli | 8c64346 | 2019-02-21 10:43:36 -0600 | [diff] [blame^] | 290 | if (msg == NULL || next_transfer_handle == NULL || |
| 291 | transfer_flag == NULL || msg->payload == NULL || |
| 292 | completion_code == NULL) { |
| 293 | return PLDM_ERROR_INVALID_DATA; |
| 294 | } |
| 295 | |
| 296 | *completion_code = msg->payload[0]; |
| 297 | if (PLDM_SUCCESS != *completion_code) { |
| 298 | return PLDM_SUCCESS; |
| 299 | }; |
| 300 | |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame] | 301 | const uint8_t *start = msg->payload + sizeof(uint8_t); |
| 302 | *next_transfer_handle = le32toh(*((uint32_t *)start)); |
| 303 | *transfer_flag = *(start + sizeof(*next_transfer_handle)); |
| 304 | |
Deepak Kodihalli | 97e0bd5 | 2019-02-21 03:54:22 -0600 | [diff] [blame] | 305 | *version = *((ver32_t *)(start + sizeof(*next_transfer_handle) + |
| 306 | sizeof(*transfer_flag))); |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame] | 307 | |
| 308 | return PLDM_SUCCESS; |
| 309 | } |