* Write required initial section header describing the capture */
| 138 | * Write required initial section header describing the capture |
| 139 | */ |
| 140 | static int |
| 141 | pcapng_section_block(rte_pcapng_t *self, |
| 142 | const char *os, const char *hw, |
| 143 | const char *app, const char *comment) |
| 144 | { |
| 145 | struct pcapng_section_header *hdr; |
| 146 | struct pcapng_option *opt; |
| 147 | uint32_t buf[PCAPNG_BLKSIZ]; |
| 148 | uint32_t len; |
| 149 | |
| 150 | len = sizeof(*hdr); |
| 151 | if (hw) |
| 152 | len += pcapng_optlen(strlen(hw)); |
| 153 | if (os) |
| 154 | len += pcapng_optlen(strlen(os)); |
| 155 | if (app) |
| 156 | len += pcapng_optlen(strlen(app)); |
| 157 | if (comment) |
| 158 | len += pcapng_optlen(strlen(comment)); |
| 159 | |
| 160 | /* reserve space for OPT_END */ |
| 161 | len += pcapng_optlen(0); |
| 162 | len += sizeof(uint32_t); |
| 163 | |
| 164 | if (len > sizeof(buf)) |
| 165 | return -1; |
| 166 | |
| 167 | hdr = (struct pcapng_section_header *)buf; |
| 168 | *hdr = (struct pcapng_section_header) { |
| 169 | .block_type = PCAPNG_SECTION_BLOCK, |
| 170 | .block_length = len, |
| 171 | .byte_order_magic = PCAPNG_BYTE_ORDER_MAGIC, |
| 172 | .major_version = PCAPNG_MAJOR_VERS, |
| 173 | .minor_version = PCAPNG_MINOR_VERS, |
| 174 | .section_length = UINT64_MAX, |
| 175 | }; |
| 176 | |
| 177 | /* After the section header insert variable length options. */ |
| 178 | opt = (struct pcapng_option *)(hdr + 1); |
| 179 | if (comment) |
| 180 | opt = pcapng_add_option(opt, PCAPNG_OPT_COMMENT, |
| 181 | comment, strlen(comment)); |
| 182 | if (hw) |
| 183 | opt = pcapng_add_option(opt, PCAPNG_SHB_HARDWARE, |
| 184 | hw, strlen(hw)); |
| 185 | if (os) |
| 186 | opt = pcapng_add_option(opt, PCAPNG_SHB_OS, |
| 187 | os, strlen(os)); |
| 188 | if (app) |
| 189 | opt = pcapng_add_option(opt, PCAPNG_SHB_USERAPPL, |
| 190 | app, strlen(app)); |
| 191 | |
| 192 | /* The standard requires last option to be OPT_END */ |
| 193 | opt = pcapng_add_option(opt, PCAPNG_OPT_END, NULL, 0); |
| 194 | |
| 195 | /* clone block_length after option */ |
| 196 | memcpy(opt, &hdr->block_length, sizeof(uint32_t)); |
| 197 |
no test coverage detected