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 | |
| 71 | return PLDM_SUCCESS; |
| 72 | } |
| 73 | |
| 74 | int encode_get_commands_req(uint8_t instance_id, uint8_t type, |
| 75 | struct pldm_version version, struct pldm_msg *msg) |
| 76 | { |
| 77 | if (msg == NULL) { |
| 78 | return PLDM_ERROR_INVALID_DATA; |
| 79 | } |
| 80 | |
| 81 | uint8_t *dst = msg->body.payload; |
| 82 | memcpy(dst, &type, sizeof(type)); |
| 83 | dst += sizeof(type); |
| 84 | memcpy(dst, &version, sizeof(version)); |
| 85 | |
| 86 | return PLDM_SUCCESS; |
| 87 | } |
| 88 | |
| 89 | int encode_get_types_resp(uint8_t instance_id, uint8_t completion_code, |
| 90 | const uint8_t *types, struct pldm_msg *msg) |
| 91 | { |
| 92 | if (msg == NULL) { |
| 93 | return PLDM_ERROR_INVALID_DATA; |
| 94 | } |
| 95 | |
| 96 | msg->body.payload[0] = completion_code; |
| 97 | if (msg->body.payload[0] == PLDM_SUCCESS) { |
| 98 | if (types == NULL) { |
| 99 | return PLDM_ERROR_INVALID_DATA; |
| 100 | } |
| 101 | uint8_t *dst = msg->body.payload + sizeof(msg->body.payload[0]); |
| 102 | memcpy(dst, types, PLDM_MAX_TYPES / 8); |
| 103 | } |
| 104 | |
| 105 | return PLDM_SUCCESS; |
| 106 | } |
| 107 | |
| 108 | int decode_get_commands_req(const struct pldm_msg_payload *msg, uint8_t *type, |
| 109 | struct pldm_version *version) |
| 110 | { |
| 111 | if (msg == NULL || type == NULL || version == NULL) { |
| 112 | return PLDM_ERROR_INVALID_DATA; |
| 113 | } |
| 114 | |
| 115 | const uint8_t *start = msg->payload; |
| 116 | *type = *start; |
| 117 | memcpy(version, (struct pldm_version *)(start + sizeof(*type)), |
| 118 | sizeof(*version)); |
| 119 | |
| 120 | return PLDM_SUCCESS; |
| 121 | } |
| 122 | |
| 123 | int encode_get_commands_resp(uint8_t instance_id, uint8_t completion_code, |
| 124 | const uint8_t *commands, struct pldm_msg *msg) |
| 125 | { |
| 126 | if (msg == NULL) { |
| 127 | return PLDM_ERROR_INVALID_DATA; |
| 128 | } |
| 129 | |
| 130 | msg->body.payload[0] = completion_code; |
| 131 | if (msg->body.payload[0] == PLDM_SUCCESS) { |
| 132 | if (commands == NULL) { |
| 133 | return PLDM_ERROR_INVALID_DATA; |
| 134 | } |
| 135 | uint8_t *dst = msg->body.payload + sizeof(msg->body.payload[0]); |
| 136 | memcpy(dst, commands, PLDM_MAX_CMDS_PER_TYPE / 8); |
| 137 | } |
| 138 | |
| 139 | return PLDM_SUCCESS; |
| 140 | } |
| 141 | |
| 142 | int decode_get_types_resp(const struct pldm_msg_payload *msg, uint8_t *types) |
| 143 | { |
| 144 | if (msg == NULL || types == NULL) { |
| 145 | return PLDM_ERROR_INVALID_DATA; |
| 146 | } |
| 147 | const uint8_t *src = msg->payload + sizeof(uint8_t); |
| 148 | memcpy(types, src, PLDM_MAX_TYPES / 8); |
| 149 | |
| 150 | return PLDM_SUCCESS; |
| 151 | } |
| 152 | |
| 153 | int decode_get_commands_resp(const struct pldm_msg_payload *msg, |
| 154 | uint8_t *commands) |
| 155 | { |
| 156 | if (msg == NULL || commands == NULL) { |
| 157 | return PLDM_ERROR_INVALID_DATA; |
| 158 | } |
| 159 | const uint8_t *src = msg->payload + sizeof(uint8_t); |
| 160 | memcpy(commands, src, PLDM_MAX_CMDS_PER_TYPE / 8); |
| 161 | |
| 162 | return PLDM_SUCCESS; |
| 163 | } |
Sampa Misra | 432e187 | 2019-02-13 03:49:43 -0600 | [diff] [blame^] | 164 | |
| 165 | int encode_get_version_req(uint8_t instance_id, uint32_t transfer_handle, |
| 166 | uint8_t transfer_opflag, uint8_t type, |
| 167 | struct pldm_msg *msg) |
| 168 | { |
| 169 | struct pldm_header_info header = {0}; |
| 170 | int rc = PLDM_SUCCESS; |
| 171 | |
| 172 | if (NULL == msg) { |
| 173 | return PLDM_ERROR_INVALID_DATA; |
| 174 | } |
| 175 | |
| 176 | header.msg_type = PLDM_REQUEST; |
| 177 | header.instance = instance_id; |
| 178 | header.pldm_type = PLDM_BASE; |
| 179 | header.command = PLDM_GET_PLDM_VERSION; |
| 180 | |
| 181 | if ((rc = pack_pldm_header(&header, &(msg->hdr))) > PLDM_SUCCESS) { |
| 182 | return rc; |
| 183 | } |
| 184 | |
| 185 | uint8_t *dst = msg->body.payload; |
| 186 | transfer_handle = htole32(transfer_handle); |
| 187 | memcpy(dst, &transfer_handle, sizeof(transfer_handle)); |
| 188 | dst += sizeof(transfer_handle); |
| 189 | |
| 190 | memcpy(dst, &transfer_opflag, sizeof(transfer_opflag)); |
| 191 | dst += sizeof(transfer_opflag); |
| 192 | |
| 193 | memcpy(dst, &type, sizeof(type)); |
| 194 | |
| 195 | return PLDM_SUCCESS; |
| 196 | } |
| 197 | |
| 198 | int encode_get_version_resp(uint8_t instance_id, uint8_t completion_code, |
| 199 | uint32_t next_transfer_handle, |
| 200 | uint8_t transfer_flag, |
| 201 | const struct pldm_version *version_data, |
| 202 | size_t version_size, struct pldm_msg *msg) |
| 203 | { |
| 204 | struct pldm_header_info header = {0}; |
| 205 | int rc = PLDM_SUCCESS; |
| 206 | |
| 207 | msg->body.payload[0] = completion_code; |
| 208 | if (msg->body.payload[0] == PLDM_SUCCESS) { |
| 209 | |
| 210 | header.msg_type = PLDM_RESPONSE; |
| 211 | header.instance = instance_id; |
| 212 | header.pldm_type = PLDM_BASE; |
| 213 | header.command = PLDM_GET_PLDM_VERSION; |
| 214 | |
| 215 | if ((rc = pack_pldm_header(&header, &(msg->hdr))) > |
| 216 | PLDM_SUCCESS) { |
| 217 | return rc; |
| 218 | } |
| 219 | uint8_t *dst = msg->body.payload + sizeof(msg->body.payload[0]); |
| 220 | |
| 221 | next_transfer_handle = htole32(next_transfer_handle); |
| 222 | |
| 223 | memcpy(dst, &next_transfer_handle, |
| 224 | sizeof(next_transfer_handle)); |
| 225 | dst += sizeof(next_transfer_handle); |
| 226 | memcpy(dst, &transfer_flag, sizeof(transfer_flag)); |
| 227 | |
| 228 | dst += sizeof(transfer_flag); |
| 229 | memcpy(dst, version_data, version_size); |
| 230 | } |
| 231 | return PLDM_SUCCESS; |
| 232 | } |
| 233 | |
| 234 | int decode_get_version_req(const struct pldm_msg_payload *msg, |
| 235 | uint32_t *transfer_handle, uint8_t *transfer_opflag, |
| 236 | uint8_t *type) |
| 237 | { |
| 238 | const uint8_t *start = msg->payload; |
| 239 | *transfer_handle = le32toh(*((uint32_t *)start)); |
| 240 | *transfer_opflag = *(start + sizeof(*transfer_handle)); |
| 241 | *type = *(start + sizeof(*transfer_handle) + sizeof(*transfer_opflag)); |
| 242 | |
| 243 | return PLDM_SUCCESS; |
| 244 | } |
| 245 | |
| 246 | int decode_get_version_resp(const struct pldm_msg_payload *msg, |
| 247 | uint32_t *next_transfer_handle, |
| 248 | uint8_t *transfer_flag, |
| 249 | struct pldm_version *version) |
| 250 | { |
| 251 | const uint8_t *start = msg->payload + sizeof(uint8_t); |
| 252 | *next_transfer_handle = le32toh(*((uint32_t *)start)); |
| 253 | *transfer_flag = *(start + sizeof(*next_transfer_handle)); |
| 254 | |
| 255 | *version = |
| 256 | *((struct pldm_version *)(start + sizeof(*next_transfer_handle) + |
| 257 | sizeof(*transfer_flag))); |
| 258 | |
| 259 | return PLDM_SUCCESS; |
| 260 | } |