+
+ if (rc) {
+ pb_debug("IPMI network config option unavailable\n");
+ return;
+ }
+
+ if (resp_len < min_len) {
+ pb_debug("IPMI net response too small\n");
+ return;
+ }
+
+ if (resp[0] != 0) {
+ pb_log("platform: non-zero completion code %d from IPMI network req\n",
+ resp[0]);
+ return;
+ }
+
+ /* Check for correct parameter version */
+ if ((resp[1] & 0xf) != 0x1) {
+ pb_log("platform: unexpected version (0x%x) in network override response\n",
+ resp[0]);
+ return;
+ }
+
+ /* Check that the parameters are valid */
+ if (resp[2] & 0x80) {
+ pb_debug("platform: network override is invalid/locked\n");
+ return;
+ }
+
+ /* Check for valid parameters in the boot flags section */
+ if (!(resp[3] & 0x80)) {
+ pb_debug("platform: network override valid flag not set\n");
+ return;
+ }
+ /* Read the persistent flag; if it is set we need to save this config */
+ persistent = resp[3] & 0x40;
+ if (persistent)
+ pb_debug("platform: network override is persistent\n");
+
+ /* Check 4-byte cookie value */
+ i = 4;
+ memcpy(&cookie, &resp[i], sizeof(cookie));
+ cookie = __be32_to_cpu(cookie);
+ if (cookie != magic_value) {
+ pb_log_fn("Incorrect cookie %x\n", cookie);
+ return;
+ }
+ i += sizeof(cookie);
+
+ /* Check 2-byte version number */
+ memcpy(&version, &resp[i], sizeof(version));
+ version = __be16_to_cpu(version);
+ i += sizeof(version);
+ if (version != 1) {
+ pb_debug("Unexpected version: %u\n", version);
+ return;
+ }
+
+ /* Interpret the rest of the interface config */
+ rc = parse_ipmi_interface_override(config, &resp[i], resp_len - i);
+
+ if (!rc && persistent) {
+ /* Write this new config to NVRAM */
+ update_network_config(platform, config);
+ rc = write_nvram(platform);
+ if (rc)
+ pb_log("platform: Failed to save persistent interface override\n");
+ }
+}
+
+static void get_active_consoles(struct config *config)
+{
+ struct stat sbuf;
+ char *fsp_prop = NULL;
+
+ config->n_consoles = 2;
+ config->consoles = talloc_array(config, char *, config->n_consoles);
+ if (!config->consoles)
+ goto err;
+
+ config->consoles[0] = talloc_asprintf(config->consoles,
+ "/dev/hvc0 [IPMI / Serial]");
+ config->consoles[1] = talloc_asprintf(config->consoles,
+ "/dev/tty1 [VGA]");
+
+ fsp_prop = talloc_asprintf(config, "%sfsps", devtree_dir);
+ if (stat(fsp_prop, &sbuf) == 0) {
+ /* FSP based machines also have a separate serial console */
+ config->consoles = talloc_realloc(config, config->consoles,
+ char *, config->n_consoles + 1);
+ if (!config->consoles)
+ goto err;
+ config->consoles[config->n_consoles++] = talloc_asprintf(
+ config->consoles,
+ "/dev/hvc1 [Serial]");
+ }
+
+ return;
+err:
+ config->n_consoles = 0;
+ pb_log("Failed to allocate memory for consoles\n");