#include <string.h>
#include <stdlib.h>
#include <limits.h>
+#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/fcntl.h>
#include <sys/stat.h>
+#include <file/file.h>
#include <talloc/talloc.h>
#include <list/list.h>
#include <log/log.h>
#include <process/process.h>
#include "platform.h"
+#include "ipmi.h"
+#include "dt.h"
static const char *partition = "common";
-static const char *sysparams_dir = "/sys/firmware/opal/sysparams";
+static const char *sysparams_dir = "/sys/firmware/opal/sysparams/";
+static const char *devtree_dir = "/proc/device-tree/";
+static const int ipmi_timeout = 5000; /* milliseconds. */
struct param {
char *name;
};
struct platform_powerpc {
- struct list params;
+ struct list params;
+ struct ipmi *ipmi;
+ bool ipmi_bootdev_persistent;
+ int (*get_ipmi_bootdev)(
+ struct platform_powerpc *platform,
+ uint8_t *bootdev, bool *persistent);
+ int (*clear_ipmi_bootdev)(
+ struct platform_powerpc *platform,
+ bool persistent);
+ int (*set_os_boot_sensor)(
+ struct platform_powerpc *platform);
};
static const char *known_params[] = {
"auto-boot?",
"petitboot,network",
"petitboot,timeout",
+ "petitboot,bootdev",
+ "petitboot,bootdevs",
+ "petitboot,language",
+ "petitboot,debug?",
+ "petitboot,write?",
+ "petitboot,snapshots?",
NULL,
};
struct process *process;
struct param *param;
const char *argv[6];
- int rc;
+ int rc = 0;
argv[0] = "nvram";
argv[1] = "--update-config";
static int parse_one_dns_config(struct config *config,
char *confstr)
{
- char *tok, *saveptr;
+ char *tok, *saveptr = NULL;
for (tok = strtok_r(confstr, ",", &saveptr); tok;
tok = strtok_r(NULL, ",", &saveptr)) {
static void populate_network_config(struct platform_powerpc *platform,
struct config *config)
{
+ char *val, *saveptr = NULL;
const char *cval;
- char *val;
int i;
cval = get_param(platform, "petitboot,network");
val = talloc_strdup(config, cval);
for (i = 0; ; i++) {
- char *tok, *saveptr;
+ char *tok;
tok = strtok_r(i == 0 ? val : NULL, " ", &saveptr);
if (!tok)
talloc_free(val);
}
+static int read_bootdev(void *ctx, char **pos, struct autoboot_option *opt)
+{
+ char *delim = strchr(*pos, ' ');
+ int len, prefix = 0, rc = -1;
+ enum device_type type;
+
+ if (!strncmp(*pos, "uuid:", strlen("uuid:"))) {
+ prefix = strlen("uuid:");
+ opt->boot_type = BOOT_DEVICE_UUID;
+ rc = 0;
+ } else if (!strncmp(*pos, "mac:", strlen("mac:"))) {
+ prefix = strlen("mac:");
+ opt->boot_type = BOOT_DEVICE_UUID;
+ rc = 0;
+ } else {
+ type = find_device_type(*pos);
+ if (type != DEVICE_TYPE_UNKNOWN) {
+ opt->type = type;
+ opt->boot_type = BOOT_DEVICE_TYPE;
+ rc = 0;
+ }
+ }
+
+ if (opt->boot_type == BOOT_DEVICE_UUID) {
+ if (delim)
+ len = (int)(delim - *pos) - prefix;
+ else
+ len = strlen(*pos);
+
+ opt->uuid = talloc_strndup(ctx, *pos + prefix, len);
+ }
+
+ /* Always advance pointer to next option or end */
+ if (delim)
+ *pos = delim + 1;
+ else
+ *pos += strlen(*pos);
+
+ return rc;
+}
+
+static void populate_bootdev_config(struct platform_powerpc *platform,
+ struct config *config)
+{
+ struct autoboot_option *opt, *new = NULL;
+ char *pos, *end, *old_dev = NULL;
+ const char delim = ' ';
+ unsigned int n_new = 0;
+ const char *val;
+ bool conflict;
+
+ /* Check for old-style bootdev */
+ val = get_param(platform, "petitboot,bootdev");
+ if (val && strlen(val)) {
+ pos = talloc_strdup(config, val);
+ if (!strncmp(val, "uuid:", strlen("uuid:")))
+ old_dev = talloc_strdup(config,
+ val + strlen("uuid:"));
+ else if (!strncmp(val, "mac:", strlen("mac:")))
+ old_dev = talloc_strdup(config,
+ val + strlen("mac:"));
+ }
+
+ /* Check for ordered bootdevs */
+ val = get_param(platform, "petitboot,bootdevs");
+ if (!val || !strlen(val)) {
+ pos = end = NULL;
+ } else {
+ pos = talloc_strdup(config, val);
+ end = strchr(pos, '\0');
+ }
+
+ while (pos && pos < end) {
+ opt = talloc(config, struct autoboot_option);
+
+ if (read_bootdev(config, &pos, opt)) {
+ pb_log("bootdev config is in an unknown format "
+ "(expected uuid:... or mac:...)");
+ talloc_free(opt);
+ if (strchr(pos, delim))
+ continue;
+ return;
+ }
+
+ new = talloc_realloc(config, new, struct autoboot_option,
+ n_new + 1);
+ new[n_new] = *opt;
+ n_new++;
+ talloc_free(opt);
+
+ }
+
+ if (!n_new && !old_dev) {
+ /* If autoboot has been disabled, clear the default options */
+ if (!config->autoboot_enabled) {
+ talloc_free(config->autoboot_opts);
+ config->n_autoboot_opts = 0;
+ }
+ return;
+ }
+
+ conflict = old_dev && (!n_new ||
+ new[0].boot_type == BOOT_DEVICE_TYPE ||
+ /* Canonical UUIDs are 36 characters long */
+ strncmp(new[0].uuid, old_dev, 36));
+
+ if (!conflict) {
+ talloc_free(config->autoboot_opts);
+ config->autoboot_opts = new;
+ config->n_autoboot_opts = n_new;
+ return;
+ }
+
+ /*
+ * Difference detected, defer to old format in case it has been updated
+ * recently
+ */
+ pb_debug("Old autoboot bootdev detected\n");
+ talloc_free(config->autoboot_opts);
+ config->autoboot_opts = talloc(config, struct autoboot_option);
+ config->autoboot_opts[0].boot_type = BOOT_DEVICE_UUID;
+ config->autoboot_opts[0].uuid = talloc_strdup(config, old_dev);
+ config->n_autoboot_opts = 1;
+}
+
static void populate_config(struct platform_powerpc *platform,
struct config *config)
{
}
}
+ val = get_param(platform, "petitboot,language");
+ config->lang = val ? talloc_strdup(config, val) : NULL;
+
populate_network_config(platform, config);
+
+ populate_bootdev_config(platform, config);
+
+ if (!config->debug) {
+ val = get_param(platform, "petitboot,debug?");
+ config->debug = val && !strcmp(val, "true");
+ }
+
+ val = get_param(platform, "petitboot,write?");
+ if (val)
+ config->allow_writes = !strcmp(val, "true");
+
+ val = get_param(platform, "petitboot,snapshots?");
+ if (val)
+ config->disable_snapshots = !strcmp(val, "false");
}
static char *iface_config_str(void *ctx, struct interface_config *config)
talloc_free(val);
}
+static void update_bootdev_config(struct platform_powerpc *platform,
+ struct config *config)
+{
+ char *val = NULL, *boot_str = NULL, *tmp = NULL, *first = NULL;
+ struct autoboot_option *opt;
+ const char delim = ' ';
+ unsigned int i;
+
+ if (!config->n_autoboot_opts)
+ first = val = "";
+ else if (config->autoboot_opts[0].boot_type == BOOT_DEVICE_UUID)
+ first = talloc_asprintf(config, "uuid:%s",
+ config->autoboot_opts[0].uuid);
+ else
+ first = "";
+
+ for (i = 0; i < config->n_autoboot_opts; i++) {
+ opt = &config->autoboot_opts[i];
+ switch (opt->boot_type) {
+ case BOOT_DEVICE_TYPE:
+ boot_str = talloc_asprintf(config, "%s%c",
+ device_type_name(opt->type),
+ delim);
+ break;
+ case BOOT_DEVICE_UUID:
+ boot_str = talloc_asprintf(config, "uuid:%s%c",
+ opt->uuid, delim);
+ break;
+ }
+ tmp = val = talloc_asprintf_append(val, "%s", boot_str);
+ }
+
+ update_string_config(platform, "petitboot,bootdevs", val);
+ update_string_config(platform, "petitboot,bootdev", first);
+ talloc_free(tmp);
+ if (boot_str)
+ talloc_free(boot_str);
+}
+
static int update_config(struct platform_powerpc *platform,
struct config *config, struct config *defaults)
{
val = tmp = talloc_asprintf(platform, "%d",
config->autoboot_timeout_sec);
+ if (config->ipmi_bootdev == IPMI_BOOTDEV_INVALID &&
+ platform->clear_ipmi_bootdev) {
+ platform->clear_ipmi_bootdev(platform,
+ config->ipmi_bootdev_persistent);
+ config->ipmi_bootdev = IPMI_BOOTDEV_NONE;
+ config->ipmi_bootdev_persistent = false;
+ }
+
update_string_config(platform, "petitboot,timeout", val);
if (tmp)
talloc_free(tmp);
+ val = config->lang ?: "";
+ update_string_config(platform, "petitboot,language", val);
+
+ if (config->allow_writes == defaults->allow_writes)
+ val = "";
+ else
+ val = config->allow_writes ? "true" : "false";
+ update_string_config(platform, "petitboot,write?", val);
+
update_network_config(platform, config);
+ update_bootdev_config(platform, config);
+
return write_nvram(platform);
}
-static void set_exclusive_devtype(struct config *config,
- enum device_type devtype)
+static void set_ipmi_bootdev(struct config *config, enum ipmi_bootdev bootdev,
+ bool persistent)
{
- config->n_boot_priorities = 2;
- config->boot_priorities = talloc_realloc(config,
- config->boot_priorities, struct boot_priority,
- config->n_boot_priorities);
- config->boot_priorities[0].type = devtype;
- config->boot_priorities[0].priority = 0;
- config->boot_priorities[1].type = DEVICE_TYPE_ANY;
- config->boot_priorities[1].priority = -1;
-}
+ config->ipmi_bootdev = bootdev;
+ config->ipmi_bootdev_persistent = persistent;
-/* bootdev options that we recognise */
-enum ipmi_bootdev {
- IPMI_BOOTDEV_NONE = 0x00,
- IPMI_BOOTDEV_NETWORK = 0x01,
- IPMI_BOOTDEV_DISK = 0x2,
- IPMI_BOOTDEV_CDROM = 0x5,
- IPMI_BOOTDEV_SETUP = 0x6,
-};
+ switch (bootdev) {
+ case IPMI_BOOTDEV_NONE:
+ case IPMI_BOOTDEV_DISK:
+ case IPMI_BOOTDEV_NETWORK:
+ case IPMI_BOOTDEV_CDROM:
+ default:
+ break;
+ case IPMI_BOOTDEV_SETUP:
+ config->autoboot_enabled = false;
+ break;
+ case IPMI_BOOTDEV_SAFE:
+ config->autoboot_enabled = false;
+ config->safe_mode = true;
+ break;
+ }
+}
static int read_bootdev_sysparam(const char *name, uint8_t *val)
{
pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]);
- switch (buf[0]) {
- default:
+ if (!ipmi_bootdev_is_valid(buf[0]))
return -1;
- case IPMI_BOOTDEV_NONE:
- case IPMI_BOOTDEV_NETWORK:
- case IPMI_BOOTDEV_DISK:
- case IPMI_BOOTDEV_CDROM:
- case IPMI_BOOTDEV_SETUP:
- *val = buf[0];
+
+ *val = buf[0];
+ return 0;
+}
+
+static int write_bootdev_sysparam(const char *name, uint8_t val)
+{
+ char path[50];
+ int fd, rc;
+
+ strcpy(path, sysparams_dir);
+ assert(strlen(name) < sizeof(path) - strlen(path));
+ strcat(path, name);
+
+ fd = open(path, O_WRONLY);
+ if (fd < 0) {
+ pb_debug("powerpc: can't access sysparam %s for writing\n",
+ name);
+ return -1;
+ }
+
+ for (;;) {
+ errno = 0;
+ rc = write(fd, &val, sizeof(val));
+ if (rc == sizeof(val)) {
+ rc = 0;
+ break;
+ }
+
+ if (rc <= 0 && errno != EINTR) {
+ pb_log("powerpc: error updating sysparam %s: %s",
+ name, strerror(errno));
+ rc = -1;
+ break;
+ }
}
+ close(fd);
+
+ if (!rc)
+ pb_debug("powerpc: set sysparam %s: 0x%02x\n", name, val);
+
+ return rc;
+}
+
+static int clear_ipmi_bootdev_sysparams(
+ struct platform_powerpc *platform __attribute__((unused)),
+ bool persistent)
+{
+ if (persistent) {
+ /* invalidate default-boot-device setting */
+ write_bootdev_sysparam("default-boot-device", 0xff);
+ } else {
+ /* invalidate next-boot-device setting */
+ write_bootdev_sysparam("next-boot-device", 0xff);
+ }
return 0;
}
-static void parse_opal_sysparams(struct config *config)
+static int get_ipmi_bootdev_sysparams(
+ struct platform_powerpc *platform __attribute__((unused)),
+ uint8_t *bootdev, bool *persistent)
{
uint8_t next_bootdev, default_bootdev;
bool next_valid, default_valid;
/* nothing valid? no need to change the config */
if (!next_valid && !default_valid)
- return;
+ return -1;
- if (!next_valid)
- next_bootdev = default_bootdev;
+ *persistent = !next_valid;
+ *bootdev = next_valid ? next_bootdev : default_bootdev;
+ return 0;
+}
- /* todo: copy default to next */
+static int clear_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
+ bool persistent __attribute__((unused)))
+{
+ uint16_t resp_len;
+ uint8_t resp[1];
+ uint8_t req[] = {
+ 0x05, /* parameter selector: boot flags */
+ 0x80, /* data 1: valid */
+ 0x00, /* data 2: bootdev: no override */
+ 0x00, /* data 3: system defaults */
+ 0x00, /* data 4: no request for shared mode, mux defaults */
+ 0x00, /* data 5: no instance request */
+ };
+
+ resp_len = sizeof(resp);
+
+ ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
+ IPMI_CMD_CHASSIS_SET_SYSTEM_BOOT_OPTIONS,
+ req, sizeof(req),
+ resp, &resp_len,
+ ipmi_timeout);
+ return 0;
+}
- switch (next_bootdev) {
- case IPMI_BOOTDEV_NONE:
- return;
- case IPMI_BOOTDEV_DISK:
- set_exclusive_devtype(config, DEVICE_TYPE_DISK);
- break;
- case IPMI_BOOTDEV_NETWORK:
- set_exclusive_devtype(config, DEVICE_TYPE_NETWORK);
- break;
- case IPMI_BOOTDEV_CDROM:
- set_exclusive_devtype(config, DEVICE_TYPE_OPTICAL);
- break;
- case IPMI_BOOTDEV_SETUP:
- config->autoboot_enabled = false;
- break;
+static int get_ipmi_bootdev_ipmi(struct platform_powerpc *platform,
+ uint8_t *bootdev, bool *persistent)
+{
+ uint16_t resp_len;
+ uint8_t resp[8];
+ int rc;
+ uint8_t req[] = {
+ 0x05, /* parameter selector: boot flags */
+ 0x00, /* no set selector */
+ 0x00, /* no block selector */
+ };
+
+ resp_len = sizeof(resp);
+ rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_CHASSIS,
+ IPMI_CMD_CHASSIS_GET_SYSTEM_BOOT_OPTIONS,
+ req, sizeof(req),
+ resp, &resp_len,
+ ipmi_timeout);
+ if (rc) {
+ pb_log("platform: error reading IPMI boot options\n");
+ return -1;
+ }
+
+ if (resp_len != sizeof(resp)) {
+ pb_log("platform: unexpected length (%d) in "
+ "boot options response\n", resp_len);
+ return -1;
+ }
+
+ if (resp[0] != 0) {
+ pb_log("platform: non-zero completion code %d from IPMI req\n",
+ resp[0]);
+ return -1;
+ }
+
+ /* check for correct parameter version */
+ if ((resp[1] & 0xf) != 0x1) {
+ pb_log("platform: unexpected version (0x%x) in "
+ "boot options response\n", resp[0]);
+ return -1;
+ }
+
+ /* check for valid paramters */
+ if (resp[2] & 0x80) {
+ pb_debug("platform: boot options are invalid/locked\n");
+ return -1;
+ }
+
+ *persistent = false;
+
+ /* check for valid flags */
+ if (!(resp[3] & 0x80)) {
+ pb_debug("platform: boot flags are invalid, ignoring\n");
+ return 0;
+ }
+
+ *persistent = resp[3] & 0x40;
+ *bootdev = (resp[4] >> 2) & 0x0f;
+ return 0;
+}
+
+static int set_ipmi_os_boot_sensor(struct platform_powerpc *platform)
+{
+ int sensor_number;
+ uint16_t resp_len;
+ uint8_t resp[1];
+ uint8_t req[] = {
+ 0x00, /* sensor number: os boot */
+ 0xA9, /* operation: set everything */
+ 0x00, /* sensor reading: none */
+ 0x40, /* assertion mask lsb: set state 6 */
+ 0x00, /* assertion mask msb: none */
+ 0x00, /* deassertion mask lsb: none */
+ 0x00, /* deassertion mask msb: none */
+ 0x00, /* event data 1: none */
+ 0x00, /* event data 2: none */
+ 0x00, /* event data 3: none */
+ };
+
+ sensor_number = get_ipmi_sensor(platform, IPMI_SENSOR_ID_OS_BOOT);
+ if (sensor_number < 0) {
+ pb_log("Couldn't find OS boot sensor in device tree\n");
+ return -1;
+ }
+
+ req[0] = sensor_number;
+
+ resp_len = sizeof(resp);
+
+ ipmi_transaction(platform->ipmi, IPMI_NETFN_SE,
+ IPMI_CMD_SENSOR_SET,
+ req, sizeof(req),
+ resp, &resp_len,
+ ipmi_timeout); return 0;
+
+ return 0;
+}
+
+static void get_ipmi_bmc_mac(struct platform *p, uint8_t *buf)
+{
+ struct platform_powerpc *platform = p->platform_data;
+ uint16_t resp_len = 8;
+ uint8_t resp[8];
+ uint8_t req[] = { 0x1, 0x5, 0x0, 0x0 };
+ int i, rc;
+
+ rc = ipmi_transaction(platform->ipmi, IPMI_NETFN_TRANSPORT,
+ IPMI_CMD_TRANSPORT_GET_LAN_PARAMS,
+ req, sizeof(req),
+ resp, &resp_len,
+ ipmi_timeout);
+
+ pb_debug("BMC MAC resp [%d][%d]:\n", rc, resp_len);
+
+ if (rc == 0 && resp_len > 0) {
+ for (i = 2; i < resp_len; i++) {
+ pb_debug(" %x", resp[i]);
+ buf[i - 2] = resp[i];
+ }
+ pb_debug("\n");
}
}
populate_config(platform, config);
- parse_opal_sysparams(config);
+ if (platform->get_ipmi_bootdev) {
+ bool bootdev_persistent;
+ uint8_t bootdev;
+ rc = platform->get_ipmi_bootdev(platform, &bootdev,
+ &bootdev_persistent);
+ if (!rc && ipmi_bootdev_is_valid(bootdev)) {
+ set_ipmi_bootdev(config, bootdev, bootdev_persistent);
+ }
+ }
return 0;
}
return rc;
}
+static void pre_boot(struct platform *p, const struct config *config)
+{
+ struct platform_powerpc *platform = to_platform_powerpc(p);
+
+ if (!config->ipmi_bootdev_persistent && platform->clear_ipmi_bootdev)
+ platform->clear_ipmi_bootdev(platform, false);
+
+ if (platform->set_os_boot_sensor)
+ platform->set_os_boot_sensor(platform);
+}
+
+static int get_sysinfo(struct platform *p, struct system_info *sysinfo)
+{
+ struct platform_powerpc *platform = p->platform_data;
+ char *buf, *filename;
+ int len, rc;
+
+ filename = talloc_asprintf(platform, "%smodel", devtree_dir);
+ rc = read_file(platform, filename, &buf, &len);
+ if (rc == 0)
+ sysinfo->type = talloc_steal(sysinfo, buf);
+ talloc_free(filename);
+
+ filename = talloc_asprintf(platform, "%ssystem-id", devtree_dir);
+ rc = read_file(platform, filename, &buf, &len);
+ if (rc == 0)
+ sysinfo->identifier = talloc_steal(sysinfo, buf);
+ talloc_free(filename);
+
+ sysinfo->bmc_mac = talloc_zero_size(sysinfo, HWADDR_SIZE);
+ if (platform->ipmi)
+ get_ipmi_bmc_mac(p, sysinfo->bmc_mac);
+
+ return 0;
+}
+
static bool probe(struct platform *p, void *ctx)
{
struct platform_powerpc *platform;
struct stat statbuf;
int rc;
- /* we need a device tree and a working nvram binary */
+ /* we need a device tree */
rc = stat("/proc/device-tree", &statbuf);
if (rc)
return false;
if (!S_ISDIR(statbuf.st_mode))
return false;
- rc = process_run_simple(ctx, "nvram", "--print-config", NULL);
- if (!WIFEXITED(rc) || WEXITSTATUS(rc) != 0)
- return false;
-
- platform = talloc(ctx, struct platform_powerpc);
+ platform = talloc_zero(ctx, struct platform_powerpc);
list_init(&platform->params);
p->platform_data = platform;
+
+ if (ipmi_present()) {
+ pb_debug("platform: using direct IPMI for IPMI paramters\n");
+ platform->ipmi = ipmi_open(platform);
+ platform->get_ipmi_bootdev = get_ipmi_bootdev_ipmi;
+ platform->clear_ipmi_bootdev = clear_ipmi_bootdev_ipmi;
+ platform->set_os_boot_sensor = set_ipmi_os_boot_sensor;
+ } else if (!stat(sysparams_dir, &statbuf)) {
+ pb_debug("platform: using sysparams for IPMI paramters\n");
+ platform->get_ipmi_bootdev = get_ipmi_bootdev_sysparams;
+ platform->clear_ipmi_bootdev = clear_ipmi_bootdev_sysparams;
+
+ } else {
+ pb_log("platform: no IPMI parameter support\n");
+ }
+
return true;
}
+
static struct platform platform_powerpc = {
- .name = "powerpc",
- .dhcp_arch_id = 0x000e,
- .probe = probe,
- .load_config = load_config,
- .save_config = save_config,
+ .name = "powerpc",
+ .dhcp_arch_id = 0x000e,
+ .probe = probe,
+ .load_config = load_config,
+ .save_config = save_config,
+ .pre_boot = pre_boot,
+ .get_sysinfo = get_sysinfo,
};
register_platform(platform_powerpc);
projects / petitboot / blobdiff