ui/ncurses: Use pmenu_item destrutor to free ncurses ITEMs
[petitboot] / discover / platform-powerpc.c
index e2a86318f84803905c0bccc07519499410646a2b..d1d4191ede7df64f485e75d59e6826237d7525b7 100644 (file)
@@ -1,9 +1,13 @@
 
 
+#include <assert.h>
 #include <string.h>
 #include <stdlib.h>
 #include <limits.h>
 #include <string.h>
 #include <stdlib.h>
 #include <limits.h>
+#include <errno.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <sys/fcntl.h>
+#include <sys/stat.h>
 
 #include <talloc/talloc.h>
 #include <list/list.h>
 
 #include <talloc/talloc.h>
 #include <list/list.h>
@@ -13,6 +17,7 @@
 #include "platform.h"
 
 static const char *partition = "common";
 #include "platform.h"
 
 static const char *partition = "common";
+static const char *sysparams_dir = "/sys/firmware/opal/sysparams/";
 
 struct param {
        char                    *name;
 
 struct param {
        char                    *name;
@@ -503,6 +508,153 @@ static int update_config(struct platform_powerpc *platform,
        return write_nvram(platform);
 }
 
        return write_nvram(platform);
 }
 
+static void set_exclusive_devtype(struct config *config,
+               enum device_type devtype)
+{
+       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;
+}
+
+/* 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,
+};
+
+static int read_bootdev_sysparam(const char *name, uint8_t *val)
+{
+       uint8_t buf[2];
+       char path[50];
+       int fd, rc;
+
+       strcpy(path, sysparams_dir);
+       assert(strlen(name) < sizeof(path) - strlen(path));
+       strcat(path, name);
+
+       fd = open(path, O_RDONLY);
+       if (fd < 0) {
+               pb_debug("powerpc: can't access sysparam %s\n",
+                               name);
+               return -1;
+       }
+
+       rc = read(fd, buf, sizeof(buf));
+
+       close(fd);
+
+       /* bootdev definitions should only be one byte in size */
+       if (rc != 1) {
+               pb_debug("powerpc: sysparam %s read returned %d\n",
+                               name, rc);
+               return -1;
+       }
+
+       pb_debug("powerpc: sysparam %s: 0x%02x\n", name, buf[0]);
+
+       switch (buf[0]) {
+       default:
+               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];
+       }
+
+       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 void parse_opal_sysparams(struct config *config)
+{
+       uint8_t next_bootdev, default_bootdev;
+       bool next_valid, default_valid;
+       int rc;
+
+       rc = read_bootdev_sysparam("next-boot-device", &next_bootdev);
+       next_valid = rc == 0;
+
+       rc = read_bootdev_sysparam("default-boot-device", &default_bootdev);
+       default_valid = rc == 0;
+
+       /* nothing valid? no need to change the config */
+       if (!next_valid && !default_valid)
+               return;
+
+       if (next_valid) {
+               /* invalidate next-boot-device setting */
+               write_bootdev_sysparam("next-boot-device", 0xff);
+       } else {
+               next_bootdev = default_bootdev;
+       }
+
+       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 load_config(struct platform *p, struct config *config)
 {
        struct platform_powerpc *platform = to_platform_powerpc(p);
 static int load_config(struct platform *p, struct config *config)
 {
        struct platform_powerpc *platform = to_platform_powerpc(p);
@@ -514,6 +666,8 @@ static int load_config(struct platform *p, struct config *config)
 
        populate_config(platform, config);
 
 
        populate_config(platform, config);
 
+       parse_opal_sysparams(config);
+
        return 0;
 }
 
        return 0;
 }
 
@@ -535,6 +689,20 @@ static int save_config(struct platform *p, struct config *config)
 static bool probe(struct platform *p, void *ctx)
 {
        struct platform_powerpc *platform;
 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 */
+       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);
        list_init(&platform->params);
 
        platform = talloc(ctx, struct platform_powerpc);
        list_init(&platform->params);
@@ -545,6 +713,7 @@ static bool probe(struct platform *p, void *ctx)
 
 static struct platform platform_powerpc = {
        .name           = "powerpc",
 
 static struct platform platform_powerpc = {
        .name           = "powerpc",
+       .dhcp_arch_id   = 0x000e,
        .probe          = probe,
        .load_config    = load_config,
        .save_config    = save_config,
        .probe          = probe,
        .load_config    = load_config,
        .save_config    = save_config,