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-rw-r--r--Makefile.am18
-rw-r--r--man/bootctl.xml80
-rw-r--r--man/custom-html.xsl4
-rw-r--r--man/systemd-efi-boot-generator.xml1
-rw-r--r--src/boot/boot-efi.c190
-rw-r--r--src/boot/boot-loader.c132
-rw-r--r--src/boot/boot-loader.h27
-rw-r--r--src/boot/boot.h64
-rw-r--r--src/boot/bootctl.c1460
-rw-r--r--src/shared/efivars.c237
-rw-r--r--src/shared/efivars.h11
11 files changed, 1592 insertions, 632 deletions
diff --git a/Makefile.am b/Makefile.am
index d739445e83..5a17642f7b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2479,15 +2479,21 @@ systemd_efi_boot_generator_LDADD = \
# ------------------------------------------------------------------------------
bootctl_SOURCES = \
- src/boot/boot.h \
- src/boot/boot-loader.h \
- src/boot/bootctl.c \
- src/boot/boot-loader.c \
- src/boot/boot-efi.c
+ src/boot/bootctl.c
+
+bootctl_CPPFLAGS = \
+ $(AM_CPPFLAGS) \
+ -DEFI_MACHINE_TYPE_NAME=\"$(EFI_MACHINE_TYPE_NAME)\" \
+ -DSD_BOOTLIBDIR=\"$(sd_bootlibdir)\"
+
+bootctl_CFLAGS = \
+ $(AM_CFLAGS) \
+ $(BLKID_CFLAGS)
bootctl_LDADD = \
libsystemd-shared.la \
- libsystemd-internal.la
+ libsystemd-internal.la \
+ $(BLKID_LIBS)
bin_PROGRAMS += \
bootctl
diff --git a/man/bootctl.xml b/man/bootctl.xml
index 00f54c73fc..99863bf31e 100644
--- a/man/bootctl.xml
+++ b/man/bootctl.xml
@@ -21,7 +21,6 @@
<refentry id="bootctl" conditional='ENABLE_EFI'
xmlns:xi="http://www.w3.org/2001/XInclude">
-
<refentryinfo>
<title>bootctl</title>
<productname>systemd</productname>
@@ -48,65 +47,82 @@
<refsynopsisdiv>
<cmdsynopsis>
- <command>bootctl</command>
- <arg choice="opt" rep="repeat">OPTIONS</arg>
- <arg choice="req">COMMAND</arg>
+ <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>status</command>
+ </cmdsynopsis>
+ <cmdsynopsis>
+ <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>update</command>
+ </cmdsynopsis>
+ <cmdsynopsis>
+ <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>install</command>
+ </cmdsynopsis>
+ <cmdsynopsis>
+ <command>bootctl <arg choice="opt" rep="repeat">OPTIONS</arg>remove</command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
- <para><command>bootctl</command> may be used to query or (in the
- future) change the firmware and boot manager settings.</para>
-
- <para>Firmware information is available only on EFI systems.
- </para>
-
- <para>Currently, only the
- <citerefentry project='gummiboot'><refentrytitle>gummiboot</refentrytitle><manvolnum>8</manvolnum></citerefentry>
- boot manager implements the required boot loader interface to
- provide complete boot manager information.</para>
+ <para><command>bootctl</command> checks, updates,
+ installs or removes the boot loader from the current
+ system.</para>
+
+ <para><command>bootctl status</command> checks and prints the
+ currently installed versions of the boot loader binaries and the
+ all current EFI boot variables.</para>
+
+ <para><command>bootctl update</command> updates all installed
+ versions of sd-boot, if the current version is newer than the
+ version installed in the EFI system partition. This also includes
+ the EFI default/fallback loader at /EFI/Boot/boot*.efi. An
+ sd-boot entry in the EFI boot variables is created, if there
+ is no current entry. A created entry will be added to the end of
+ the boot order list.</para>
+
+ <para><command>bootctl install</command> installs sd-boot into
+ the EFI system partition. A copy of sd-boot will be stored as
+ the EFI default/fallback loader at /EFI/Boot/boot*.efi. An sd-boot
+ entry in the EFI boot variables is created and added to the top
+ of the boot order list.</para>
+
+ <para><command>bootctl remove</command> removes all installed
+ versions of sd-boot from the EFI system partition, and removes
+ sd-boot from the EFI boot variables.</para>
+
+ <para>If no command is passed <command>status</command> is
+ implied.</para>
</refsect1>
<refsect1>
<title>Options</title>
-
<para>The following options are understood:</para>
<variablelist>
<xi:include href="standard-options.xml" xpointer="help" />
<xi:include href="standard-options.xml" xpointer="version" />
- </variablelist>
-
- <para>The following commands are understood:</para>
-
- <variablelist>
<varlistentry>
- <term><command>status</command></term>
+ <term><option>--path</option></term>
+ <listitem><para>Path to the EFI system partition. The default is /boot.</para></listitem>
+ </varlistentry>
- <listitem><para>Show firmware and boot manager information
- about the system, including secure boot mode status and
- selected firmware entry (where available).</para></listitem>
+ <varlistentry>
+ <term><option>--no-variables</option></term>
+ <listitem><para>Do not touch the EFI boot variables.</para></listitem>
</varlistentry>
</variablelist>
-
</refsect1>
<refsect1>
<title>Exit status</title>
-
- <para>On success, 0 is returned, a non-zero failure code
- otherwise.</para>
+ <para>On success 0 is returned, a non-zero failure
+ code otherwise.</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
- <ulink url="http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface">Boot loader interface</ulink>,
- <ulink url="http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>,
- <ulink url="http://www.freedesktop.org/wiki/Software/gummiboot/">gummiboot</ulink>
+ <ulink url="http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec">Boot loader specification</ulink>
+ <ulink url="http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface">Systemd boot loader interface</ulink>
</para>
</refsect1>
-
</refentry>
diff --git a/man/custom-html.xsl b/man/custom-html.xsl
index 32299db710..2cb7b76ae2 100644
--- a/man/custom-html.xsl
+++ b/man/custom-html.xsl
@@ -87,10 +87,6 @@
</a>
</xsl:template>
-<xsl:template match="citerefentry[@project='gummiboot']">
- <xsl:call-template name="inline.charseq"/>
-</xsl:template>
-
<xsl:template match="refsect1/title|refsect1/info/title">
<!-- the ID is output in the block.object call for refsect1 -->
<h2>
diff --git a/man/systemd-efi-boot-generator.xml b/man/systemd-efi-boot-generator.xml
index b2d8d65e3d..d05d84abb9 100644
--- a/man/systemd-efi-boot-generator.xml
+++ b/man/systemd-efi-boot-generator.xml
@@ -80,7 +80,6 @@
<citerefentry><refentrytitle>systemd.mount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.automount</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-gpt-auto-generator</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
- <citerefentry><refentrytitle>gummiboot</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>fstab</refentrytitle><manvolnum>5</manvolnum></citerefentry>
</para>
</refsect1>
diff --git a/src/boot/boot-efi.c b/src/boot/boot-efi.c
deleted file mode 100644
index bd0c59bd5a..0000000000
--- a/src/boot/boot-efi.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Kay Sievers
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdlib.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <locale.h>
-#include <string.h>
-#include <fnmatch.h>
-#include <fcntl.h>
-#include <sys/timex.h>
-
-#include "boot.h"
-#include "boot-loader.h"
-#include "build.h"
-#include "util.h"
-#include "strv.h"
-#include "efivars.h"
-#include "conf-files.h"
-
-static char *tilt_slashes(char *s) {
- char *p;
-
- if (!s)
- return NULL;
-
- for (p = s; *p; p++)
- if (*p == '\\')
- *p = '/';
- return s;
-}
-
-static int get_boot_entries(struct boot_info *info) {
- uint16_t *list = NULL;
- int i, n;
- int err = 0;
-
- n = efi_get_boot_options(&list);
- if (n < 0)
- return n;
-
- for (i = 0; i < n; i++) {
- struct boot_info_entry *e;
-
- e = realloc(info->fw_entries, (info->fw_entries_count+1) * sizeof(struct boot_info_entry));
- if (!e) {
- err = -ENOMEM;
- break;
- }
- info->fw_entries = e;
-
- e = &info->fw_entries[info->fw_entries_count];
- memzero(e, sizeof(struct boot_info_entry));
- e->order = -1;
-
- err = efi_get_boot_option(list[i], &e->title, &e->part_uuid, &e->path);
- if (err < 0)
- continue;
-
- if (isempty(e->title)) {
- free(e->title);
- e->title = NULL;
- }
- tilt_slashes(e->path);
-
- e->id = list[i];
- info->fw_entries_count++;
- }
-
- free(list);
- return err;
-}
-
-static int find_active_entry(struct boot_info *info) {
- uint16_t boot_cur;
- void *buf;
- size_t l;
- size_t i;
- int err;
-
- err = efi_get_variable(EFI_VENDOR_GLOBAL, "BootCurrent", NULL, &buf, &l);
- if (err < 0)
- return err;
-
- memcpy(&boot_cur, buf, sizeof(uint16_t));
- for (i = 0; i < info->fw_entries_count; i++) {
- if (info->fw_entries[i].id != boot_cur)
- continue;
- info->fw_entry_active = i;
- err = 0;
- break;
- }
- free(buf);
- return err;
-}
-
-static int get_boot_order(struct boot_info *info) {
- size_t i, k;
- int r;
-
- r = efi_get_boot_order(&info->fw_entries_order);
- if (r < 0)
- return r;
-
- info->fw_entries_order_count = r;
-
- for (i = 0; i < info->fw_entries_order_count; i++) {
- for (k = 0; k < info->fw_entries_count; k++) {
- if (info->fw_entries[k].id != info->fw_entries_order[i])
- continue;
- info->fw_entries[k].order = i;
- break;
- }
- }
-
- return 0;
-}
-
-static int entry_cmp(const void *a, const void *b) {
- const struct boot_info_entry *e1 = a;
- const struct boot_info_entry *e2 = b;
-
- /* boot order of active entries */
- if (e1->order > 0 && e2->order > 0)
- return e1->order - e2->order;
-
- /* sort active entries before inactive ones */
- if (e1->order > 0)
- return 1;
- if (e2->order > 0)
- return -1;
-
- /* order of inactive entries */
- return e1->id - e2->id;
-}
-
-int boot_info_query(struct boot_info *info) {
- char str[64];
- char buf[64];
- char *loader_active = NULL;
-
- info->fw_secure_boot = is_efi_secure_boot();
- info->fw_secure_boot_setup_mode = is_efi_secure_boot_setup_mode();
-
- efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderInfo", &info->loader);
-
- get_boot_entries(info);
- if (info->fw_entries_count > 0) {
- get_boot_order(info);
- qsort(info->fw_entries, info->fw_entries_count, sizeof(struct boot_info_entry), entry_cmp);
- find_active_entry(info);
- }
-
- efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderFirmwareType", &info->fw_type);
- efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderFirmwareInfo", &info->fw_info);
- efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderImageIdentifier", &info->loader_image_path);
- tilt_slashes(info->loader_image_path);
- efi_loader_get_device_part_uuid(&info->loader_part_uuid);
-
- boot_loader_read_entries(info);
- efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderEntrySelected", &loader_active);
- if (loader_active) {
- boot_loader_find_active_entry(info, loader_active);
- free(loader_active);
- }
-
- snprintf(str, sizeof(str), "LoaderEntryOptions-%s", sd_id128_to_string(info->machine_id, buf));
- efi_get_variable_string(EFI_VENDOR_LOADER, str, &info->loader_options_added);
-
- return 0;
-}
diff --git a/src/boot/boot-loader.c b/src/boot/boot-loader.c
deleted file mode 100644
index d44fdb3aef..0000000000
--- a/src/boot/boot-loader.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Kay Sievers
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <stdlib.h>
-#include <stdbool.h>
-#include <unistd.h>
-#include <getopt.h>
-#include <locale.h>
-#include <string.h>
-#include <ctype.h>
-#include <sys/timex.h>
-
-#include "boot.h"
-#include "boot-loader.h"
-#include "build.h"
-#include "util.h"
-#include "strv.h"
-#include "conf-files.h"
-
-static char *loader_fragment_read_title(const char *fragment) {
- FILE *f;
- char line[LINE_MAX];
- char *title = NULL;
-
- f = fopen(fragment, "re");
- if (!f)
- return NULL;
-
- while (fgets(line, sizeof(line), f) != NULL) {
- char *s;
- size_t l;
-
- l = strlen(line);
- if (l < 1)
- continue;
- if (line[l-1] == '\n')
- line[l-1] = '\0';
-
- s = line;
- while (isspace(s[0]))
- s++;
-
- if (s[0] == '#')
- continue;
-
- if (!startswith(s, "title"))
- continue;
-
- s += strlen("title");
- if (!isspace(s[0]))
- continue;
- while (isspace(s[0]))
- s++;
-
- title = strdup(s);
- break;
- }
-
- fclose(f);
- return title;
-}
-
-int boot_loader_read_entries(struct boot_info *info) {
- _cleanup_strv_free_ char **files = NULL;
- static const char *loader_dir[] = { "/boot/loader/entries", NULL};
- unsigned int count;
- unsigned int i;
- int err;
-
- err = conf_files_list_strv(&files, ".conf", NULL, loader_dir);
- if (err < 0)
- return err;
-
- count = strv_length(files);
- info->loader_entries = new0(struct boot_info_entry, count);
- if (!info->loader_entries)
- return -ENOMEM;
-
- for (i = 0; i < count; i++) {
- info->loader_entries[i].title = loader_fragment_read_title(files[i]);
- info->loader_entries[i].path = strdup(files[i]);
- if (!info->loader_entries[i].title || !info->loader_entries[i].path) {
- free(info->loader_entries[i].title);
- free(info->loader_entries[i].path);
- return -ENOMEM;
- }
- info->loader_entries_count++;
- }
-
- return 0;
-}
-
-int boot_loader_find_active_entry(struct boot_info *info, const char *loader_active) {
- char *fn;
- unsigned int i;
-
- if (!loader_active)
- return -ENOENT;
- if (info->loader_entries_count == 0)
- return -ENOENT;
-
- if (asprintf(&fn, "/boot/loader/entries/%s.conf", loader_active) < 0)
- return -ENOMEM;
-
- for (i = 0; i < info->loader_entries_count; i++) {
- if (streq(fn, info->loader_entries[i].path)) {
- info->loader_entry_active = i;
- break;
- }
- }
-
- free(fn);
- return 0;
-}
diff --git a/src/boot/boot-loader.h b/src/boot/boot-loader.h
deleted file mode 100644
index b3fcdeedad..0000000000
--- a/src/boot/boot-loader.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-#pragma once
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Kay Sievers
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "boot.h"
-
-int boot_loader_read_entries(struct boot_info *info);
-int boot_loader_find_active_entry(struct boot_info *info, const char *loader_active);
diff --git a/src/boot/boot.h b/src/boot/boot.h
deleted file mode 100644
index bd8dc69d3d..0000000000
--- a/src/boot/boot.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-#pragma once
-
-/***
- This file is part of systemd.
-
- Copyright 2013 Kay Sievers
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "sd-id128.h"
-
-/*
- * Firmware and boot manager information to be filled in
- * by the platform.
- *
- * This is partly EFI specific, if you add things, keep this
- * as generic as possible to be able to re-use it on other
- * platforms.
- */
-
-struct boot_info_entry {
- uint16_t id;
- uint16_t order;
- char *title;
- sd_id128_t part_uuid;
- char *path;
-};
-
-struct boot_info {
- sd_id128_t machine_id;
- sd_id128_t boot_id;
- char *fw_type;
- char *fw_info;
- int fw_secure_boot;
- int fw_secure_boot_setup_mode;
- struct boot_info_entry *fw_entries;
- size_t fw_entries_count;
- uint16_t *fw_entries_order;
- size_t fw_entries_order_count;
- ssize_t fw_entry_active;
- char *loader;
- char *loader_image_path;
- sd_id128_t loader_part_uuid;
- struct boot_info_entry *loader_entries;
- size_t loader_entries_count;
- ssize_t loader_entry_active;
- char *loader_options_added;
-};
-
-int boot_info_query(struct boot_info *info);
diff --git a/src/boot/bootctl.c b/src/boot/bootctl.c
index 51b51c4254..3b6df42910 100644
--- a/src/boot/bootctl.c
+++ b/src/boot/bootctl.c
@@ -3,7 +3,8 @@
/***
This file is part of systemd.
- Copyright 2013 Kay Sievers
+ Copyright 2013-2015 Kay Sievers
+ Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
@@ -19,249 +20,1374 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <stdlib.h>
-#include <stdbool.h>
-#include <unistd.h>
+#include <stdio.h>
#include <getopt.h>
-#include <locale.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <sys/statfs.h>
+#include <sys/stat.h>
+#include <errno.h>
#include <string.h>
-#include <sys/timex.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <dirent.h>
+#include <ctype.h>
+#include <limits.h>
+#include <ftw.h>
+#include <stdbool.h>
+#include <blkid/blkid.h>
-#include "boot.h"
+#include "efivars.h"
#include "build.h"
#include "util.h"
#include "utf8.h"
-static void help(void) {
- printf("%s [OPTIONS...] COMMAND ...\n\n"
- "Query or change firmware and boot manager settings.\n\n"
- " -h --help Show this help\n"
- " --version Show package version\n"
- "Commands:\n"
- " status Show current boot settings\n"
- , program_invocation_short_name);
+static int verify_esp(const char *p, uint32_t *part, uint64_t *pstart, uint64_t *psize, sd_id128_t *uuid) {
+ struct statfs sfs;
+ struct stat st, st2;
+ char *t;
+ blkid_probe b = NULL;
+ int r;
+ const char *v;
+
+ if (statfs(p, &sfs) < 0) {
+ fprintf(stderr, "Failed to check file system type of %s: %m\n", p);
+ return -errno;
+ }
+
+ if (sfs.f_type != 0x4d44) {
+ fprintf(stderr, "File system %s is not a FAT EFI System Partition (ESP) file system.\n", p);
+ return -ENODEV;
+ }
+
+ if (stat(p, &st) < 0) {
+ fprintf(stderr, "Failed to determine block device node of %s: %m\n", p);
+ return -errno;
+ }
+
+ if (major(st.st_dev) == 0) {
+ fprintf(stderr, "Block device node of %p is invalid.\n", p);
+ return -ENODEV;
+ }
+
+ r = asprintf(&t, "%s/..", p);
+ if (r < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ r = stat(t, &st2);
+ free(t);
+ if (r < 0) {
+ fprintf(stderr, "Failed to determine block device node of parent of %s: %m\n", p);
+ return -errno;
+ }
+
+ if (st.st_dev == st2.st_dev) {
+ fprintf(stderr, "Directory %s is not the root of the EFI System Partition (ESP) file system.\n", p);
+ return -ENODEV;
+ }
+
+ r = asprintf(&t, "/dev/block/%u:%u", major(st.st_dev), minor(st.st_dev));
+ if (r < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ errno = 0;
+ b = blkid_new_probe_from_filename(t);
+ free(t);
+ if (!b) {
+ if (errno != 0) {
+ fprintf(stderr, "Failed to open file system %s: %m\n", p);
+ return -errno;
+ }
+
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ blkid_probe_enable_superblocks(b, 1);
+ blkid_probe_set_superblocks_flags(b, BLKID_SUBLKS_TYPE);
+ blkid_probe_enable_partitions(b, 1);
+ blkid_probe_set_partitions_flags(b, BLKID_PARTS_ENTRY_DETAILS);
+
+ errno = 0;
+ r = blkid_do_safeprobe(b);
+ if (r == -2) {
+ fprintf(stderr, "File system %s is ambigious.\n", p);
+ r = -ENODEV;
+ goto fail;
+ } else if (r == 1) {
+ fprintf(stderr, "File system %s does not contain a label.\n", p);
+ r = -ENODEV;
+ goto fail;
+ } else if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe file system %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "TYPE", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe file system type %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+
+ if (strcmp(v, "vfat") != 0) {
+ fprintf(stderr, "File system %s is not a FAT EFI System Partition (ESP) file system after all.\n", p);
+ r = -ENODEV;
+ goto fail;
+ }
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "PART_ENTRY_SCHEME", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe partition scheme %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+
+ if (strcmp(v, "gpt") != 0) {
+ fprintf(stderr, "File system %s is not on a GPT partition table.\n", p);
+ r = -ENODEV;
+ goto fail;
+ }
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "PART_ENTRY_TYPE", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe partition type UUID %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+
+ if (strcmp(v, "c12a7328-f81f-11d2-ba4b-00a0c93ec93b") != 0) {
+ r = -ENODEV;
+ fprintf(stderr, "File system %s is not an EFI System Partition (ESP).\n", p);
+ goto fail;
+ }
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "PART_ENTRY_UUID", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe partition entry UUID %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+ sd_id128_from_string(v, uuid);
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "PART_ENTRY_NUMBER", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe partition number %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+ *part = strtoul(v, NULL, 10);
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "PART_ENTRY_OFFSET", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe partition offset %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+ *pstart = strtoul(v, NULL, 10);
+
+ errno = 0;
+ r = blkid_probe_lookup_value(b, "PART_ENTRY_SIZE", &v, NULL);
+ if (r != 0) {
+ r = errno ? -errno : -EIO;
+ fprintf(stderr, "Failed to probe partition size %s: %s\n", p, strerror(-r));
+ goto fail;
+ }
+ *psize = strtoul(v, NULL, 10);
+
+ blkid_free_probe(b);
+ return 0;
+fail:
+ if (b)
+ blkid_free_probe(b);
+ return r;
}
-static int parse_argv(int argc, char *argv[]) {
- enum {
- ARG_VERSION = 0x100,
- };
+/* search for "#### LoaderInfo: sd-boot 218 ####" string inside the binary */
+static int get_file_version(FILE *f, char **v) {
+ struct stat st;
+ char *buf;
+ const char *s, *e;
+ char *x = NULL;
+ int r = 0;
- static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- {}
- };
+ assert(f);
+ assert(v);
- int c;
+ if (fstat(fileno(f), &st) < 0)
+ return -errno;
- assert(argc >= 0);
- assert(argv);
+ if (st.st_size < 27)
+ return 0;
- while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
+ buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fileno(f), 0);
+ if (buf == MAP_FAILED)
+ return -errno;
- switch (c) {
+ s = memmem(buf, st.st_size - 8, "#### LoaderInfo: ", 17);
+ if (!s)
+ goto finish;
+ s += 17;
- case 'h':
- help();
- return 0;
+ e = memmem(s, st.st_size - (s - buf), " ####", 5);
+ if (!e || e - s < 3) {
+ fprintf(stderr, "Malformed version string.\n");
+ r = -EINVAL;
+ goto finish;
+ }
- case ARG_VERSION:
- puts(PACKAGE_STRING);
- puts(SYSTEMD_FEATURES);
- return 0;
+ x = strndup(s, e - s);
+ if (!x) {
+ fprintf(stderr, "Out of memory.\n");
+ r = -ENOMEM;
+ goto finish;
+ }
+ r = 1;
- case '?':
- return -EINVAL;
+finish:
+ munmap(buf, st.st_size);
+ *v = x;
+ return r;
+}
- default:
- assert_not_reached("Unhandled option");
+static int enumerate_binaries(const char *esp_path, const char *path, const char *prefix) {
+ struct dirent *de;
+ char *p = NULL, *q = NULL;
+ DIR *d = NULL;
+ int r = 0, c = 0;
+
+ if (asprintf(&p, "%s/%s", esp_path, path) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ d = opendir(p);
+ if (!d) {
+ if (errno == ENOENT) {
+ r = 0;
+ goto finish;
}
- return 1;
+ fprintf(stderr, "Failed to read %s: %m\n", p);
+ r = -errno;
+ goto finish;
+ }
+
+ while ((de = readdir(d))) {
+ char *v;
+ size_t n;
+ FILE *f;
+
+ if (de->d_name[0] == '.')
+ continue;
+
+ n = strlen(de->d_name);
+ if (n < 4 || strcasecmp(de->d_name + n - 4, ".efi") != 0)
+ continue;
+
+ if (prefix && strncasecmp(de->d_name, prefix, strlen(prefix)) != 0)
+ continue;
+
+ free(q);
+ q = NULL;
+ if (asprintf(&q, "%s/%s/%s", esp_path, path, de->d_name) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ f = fopen(q, "re");
+ if (!f) {
+ fprintf(stderr, "Failed to open %s for reading: %m\n", q);
+ r = -errno;
+ goto finish;
+ }
+
+ r = get_file_version(f, &v);
+ fclose(f);
+
+ if (r < 0)
+ goto finish;
+
+ if (r > 0)
+ printf(" File: └─/%s/%s (%s)\n", path, de->d_name, v);
+ else
+ printf(" File: └─/%s/%s\n", path, de->d_name);
+
+ c++;
+ free(v);
+ }
+
+ r = c;
+
+finish:
+ if (d)
+ closedir(d);
+
+ free(p);
+ free(q);
+ return r;
}
-static int boot_info_new(struct boot_info **info) {
- struct boot_info *in;
- int err;
+static int status_binaries(const char *esp_path, sd_id128_t partition) {
+ int r;
+
+ printf("Boot Loader Binaries:\n");
+
+ printf(" ESP: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n", SD_ID128_FORMAT_VAL(partition));
+
+ r = enumerate_binaries(esp_path, "EFI/systemd", NULL);
+ if (r == 0)
+ fprintf(stderr, "sd-boot not installed in ESP.\n");
+ else if (r < 0)
+ return r;
+
+ r = enumerate_binaries(esp_path, "EFI/Boot", "boot");
+ if (r == 0)
+ fprintf(stderr, "No default/fallback boot loader installed in ESP.\n");
+ else if (r < 0)
+ return r;
+
+ printf("\n");
+ return 0;
+}
+
+static int print_efi_option(uint16_t id, bool in_order) {
+ char *title = NULL;
+ char *path = NULL;
+ sd_id128_t partition;
+ bool active;
+ int r = 0;
+
+ r = efi_get_boot_option(id, &title, &partition, &path, &active);
+ if (r < 0)
+ goto finish;
- in = new0(struct boot_info, 1);
- if (!in)
+ /* print only configured entries with partition information */
+ if (!path || sd_id128_equal(partition, SD_ID128_NULL))
+ return 0;
+
+ efi_tilt_backslashes(path);
+
+ printf(" Title: %s\n", strna(title));
+ printf(" ID: 0x%04X\n", id);
+ printf(" Status: %sactive%s\n", active ? "" : "in", in_order ? ", boot-order" : "");
+ printf(" Partition: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n", SD_ID128_FORMAT_VAL(partition));
+ printf(" File: └─%s\n", path);
+ printf("\n");
+
+finish:
+ free(title);
+ free(path);
+ return r;
+}
+
+static int status_variables(void) {
+ int n_options, n_order;
+ uint16_t *options = NULL, *order = NULL;
+ int r, i;
+
+ if (!is_efi_boot()) {
+ fprintf(stderr, "Not booted with EFI, not showing EFI variables.\n");
+ return 0;
+ }
+
+ n_options = efi_get_boot_options(&options);
+ if (n_options < 0) {
+ if (n_options == -ENOENT)
+ fprintf(stderr, "Failed to access EFI variables, "
+ "efivarfs needs to be available at /sys/firmware/efi/efivars/.\n");
+ else
+ fprintf(stderr, "Failed to read EFI boot entries: %s\n", strerror(-n_options));
+ r = n_options;
+ goto finish;
+ }
+
+ printf("Boot Loader Entries in EFI Variables:\n");
+ n_order = efi_get_boot_order(&order);
+ if (n_order == -ENOENT) {
+ n_order = 0;
+ } else if (n_order < 0) {
+ fprintf(stderr, "Failed to read EFI boot order.\n");
+ r = n_order;
+ goto finish;
+ }
+
+ /* print entries in BootOrder first */
+ for (i = 0; i < n_order; i++)
+ print_efi_option(order[i], true);
+
+ /* print remaining entries */
+ for (i = 0; i < n_options; i++) {
+ int j;
+ bool found = false;
+
+ for (j = 0; j < n_order; j++)
+ if (options[i] == order[j]) {
+ found = true;
+ break;
+ }
+
+ if (found)
+ continue;
+
+ print_efi_option(options[i], false);
+ }
+
+ r = 0;
+finish:
+ free(options);
+ free(order);
+
+ return r;
+}
+
+static int compare_product(const char *a, const char *b) {
+ size_t x, y;
+
+ assert(a);
+ assert(b);
+
+ x = strcspn(a, " ");
+ y = strcspn(b, " ");
+ if (x != y)
+ return x < y ? -1 : x > y ? 1 : 0;
+
+ return strncmp(a, b, x);
+}
+
+static int compare_version(const char *a, const char *b) {
+ assert(a);
+ assert(b);
+
+ a += strcspn(a, " ");
+ a += strspn(a, " ");
+ b += strcspn(b, " ");
+ b += strspn(b, " ");
+
+ return strverscmp(a, b);
+}
+
+static int version_check(FILE *f, const char *from, const char *to) {
+ FILE *g = NULL;
+ char *a = NULL, *b = NULL;
+ int r;
+
+ assert(f);
+ assert(from);
+ assert(to);
+
+ r = get_file_version(f, &a);
+ if (r < 0)
+ goto finish;
+ if (r == 0) {
+ r = -EINVAL;
+ fprintf(stderr, "Source file %s does not carry version information!\n", from);
+ goto finish;
+ }
+
+ g = fopen(to, "re");
+ if (!g) {
+ if (errno == ENOENT) {
+ r = 0;
+ goto finish;
+ }
+
+ r = -errno;
+ fprintf(stderr, "Failed to open %s for reading: %m\n", to);
+ goto finish;
+ }
+
+ r = get_file_version(g, &b);
+ if (r < 0)
+ goto finish;
+ if (r == 0 || compare_product(a, b) != 0) {
+ r = -EEXIST;
+ fprintf(stderr, "Skipping %s, since it's owned by another boot loader.\n", to);
+ goto finish;
+ }
+
+ if (compare_version(a, b) < 0) {
+ r = -EEXIST;
+ fprintf(stderr, "Skipping %s, since it's a newer boot loader version already.\n", to);
+ goto finish;
+ }
+
+ r = 0;
+
+finish:
+ free(a);
+ free(b);
+ if (g)
+ fclose(g);
+ return r;
+}
+
+static int copy_file(const char *from, const char *to, bool force) {
+ FILE *f = NULL, *g = NULL;
+ char *p = NULL;
+ int r;
+ struct timespec t[2];
+ struct stat st;
+
+ assert(from);
+ assert(to);
+
+ f = fopen(from, "re");
+ if (!f) {
+ fprintf(stderr, "Failed to open %s for reading: %m\n", from);
+ return -errno;
+ }
+
+ if (!force) {
+ /* If this is an update, then let's compare versions first */
+ r = version_check(f, from, to);
+ if (r < 0)
+ goto finish;
+ }
+
+ if (asprintf(&p, "%s~", to) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ g = fopen(p, "wxe");
+ if (!g) {
+ /* Directory doesn't exist yet? Then let's skip this... */
+ if (!force && errno == ENOENT) {
+ r = 0;
+ goto finish;
+ }
+
+ fprintf(stderr, "Failed to open %s for writing: %m\n", to);
+ r = -errno;
+ goto finish;
+ }
+
+ rewind(f);
+ do {
+ size_t k;
+ uint8_t buf[32*1024];
+
+ k = fread(buf, 1, sizeof(buf), f);
+ if (ferror(f)) {
+ fprintf(stderr, "Failed to read %s: %m\n", from);
+ r = -errno;
+ goto finish;
+ }
+ if (k == 0)
+ break;
+
+ fwrite(buf, 1, k, g);
+ if (ferror(g)) {
+ fprintf(stderr, "Failed to write %s: %m\n", to);
+ r = -errno;
+ goto finish;
+ }
+ } while (!feof(f));
+
+ fflush(g);
+ if (ferror(g)) {
+ fprintf(stderr, "Failed to write %s: %m\n", to);
+ r = -errno;
+ goto finish;
+ }
+
+ r = fstat(fileno(f), &st);
+ if (r < 0) {
+ fprintf(stderr, "Failed to get file timestamps of %s: %m", from);
+ r = -errno;
+ goto finish;
+ }
+
+ t[0] = st.st_atim;
+ t[1] = st.st_mtim;
+
+ r = futimens(fileno(g), t);
+ if (r < 0) {
+ fprintf(stderr, "Failed to change file timestamps for %s: %m", p);
+ r = -errno;
+ goto finish;
+ }
+
+ if (rename(p, to) < 0) {
+ fprintf(stderr, "Failed to rename %s to %s: %m\n", p, to);
+ r = -errno;
+ goto finish;
+ }
+
+ fprintf(stderr, "Copied %s to %s.\n", from, to);
+
+ free(p);
+ p = NULL;
+ r = 0;
+
+finish:
+ if (f)
+ fclose(f);
+ if (g)
+ fclose(g);
+ if (p) {
+ unlink(p);
+ free(p);
+ }
+ return r;
+}
+
+static char* strupper(char *s) {
+ char *p;
+
+ for (p = s; *p; p++)
+ *p = toupper(*p);
+
+ return s;
+}
+
+static int mkdir_one(const char *prefix, const char *suffix) {
+ char *p;
+
+ if (asprintf(&p, "%s/%s", prefix, suffix) < 0) {
+ fprintf(stderr, "Out of memory.\n");
return -ENOMEM;
+ }
- err = sd_id128_get_machine(&in->machine_id);
- if (err < 0)
- goto err;
+ if (mkdir(p, 0700) < 0) {
+ if (errno != EEXIST) {
+ fprintf(stderr, "Failed to create %s: %m\n", p);
+ free(p);
+ return -errno;
+ }
+ } else
+ fprintf(stderr, "Created %s.\n", p);
- err = sd_id128_get_boot(&in->boot_id);
- if (err < 0)
- goto err;
+ free(p);
+ return 0;
+}
+
+static int create_dirs(const char *esp_path) {
+ int r;
+
+ r = mkdir_one(esp_path, "EFI");
+ if (r < 0)
+ return r;
+
+ r = mkdir_one(esp_path, "EFI/systemd");
+ if (r < 0)
+ return r;
+
+ r = mkdir_one(esp_path, "EFI/Boot");
+ if (r < 0)
+ return r;
- in->fw_entry_active = -1;
- in->loader_entry_active = -1;
+ r = mkdir_one(esp_path, "loader");
+ if (r < 0)
+ return r;
+
+ r = mkdir_one(esp_path, "loader/entries");
+ if (r < 0)
+ return r;
- *info = in;
return 0;
-err:
- free(in);
- return err;
}
-static void boot_info_entries_free(struct boot_info_entry *entries, size_t n) {
- size_t i;
+static int copy_one_file(const char *esp_path, const char *name, bool force) {
+ _cleanup_free_ char *p = NULL;
+ _cleanup_free_ char *q = NULL;
+ _cleanup_free_ char *v = NULL;
+ int r;
+
+ if (asprintf(&p, SD_BOOTLIBDIR "/%s", name) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
- for (i = 0; i < n; i++) {
- free(entries[i].title);
- free(entries[i].path);
+ if (asprintf(&q, "%s/EFI/systemd/%s", esp_path, name) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
}
- free(entries);
+
+ r = copy_file(p, q, force);
+
+ if (startswith(name, "sd-boot")) {
+ int k;
+
+ /* Create the EFI default boot loader name (specified for removable devices) */
+ if (asprintf(&v, "%s/EFI/Boot/BOOT%s", esp_path, name + strlen("sd-boot")) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+ strupper(strrchr(v, '/') + 1);
+
+ k = copy_file(p, v, force);
+ if (k < 0 && r == 0)
+ return k;
+ }
+
+ return r;
}
-static void boot_info_free(struct boot_info *info) {
- free(info->fw_type);
- free(info->fw_info);
- boot_info_entries_free(info->fw_entries, info->fw_entries_count);
- free(info->fw_entries_order);
- free(info->loader);
- free(info->loader_image_path);
- free(info->loader_options_added);
- boot_info_entries_free(info->loader_entries, info->loader_entries_count);
- free(info);
+static int install_binaries(const char *esp_path, bool force) {
+ struct dirent *de;
+ DIR *d;
+ int r = 0;
+
+ if (force) {
+ /* Don't create any of these directories when we are
+ * just updating. When we update we'll drop-in our
+ * files (unless there are newer ones already), but we
+ * won't create the directories for them in the first
+ * place. */
+ r = create_dirs(esp_path);
+ if (r < 0)
+ return r;
+ }
+
+ d = opendir(SD_BOOTLIBDIR);
+ if (!d) {
+ fprintf(stderr, "Failed to open "SD_BOOTLIBDIR": %m\n");
+ return -errno;
+ }
+
+ while ((de = readdir(d))) {
+ size_t n;
+ int k;
+
+ if (de->d_name[0] == '.')
+ continue;
+
+ n = strlen(de->d_name);
+ if (n < 4 || strcmp(de->d_name + n - 4, ".efi") != 0)
+ continue;
+
+ k = copy_one_file(esp_path, de->d_name, force);
+ if (k < 0 && r == 0)
+ r = k;
+ }
+
+ closedir(d);
+ return r;
}
-static int show_status(char **args, unsigned n) {
- char buf[64];
- struct boot_info *info;
+static bool same_entry(uint16_t id, const sd_id128_t uuid, const char *path) {
+ char *opath = NULL;
+ sd_id128_t ouuid;
int err;
+ bool same = false;
- err = boot_info_new(&info);
+ err = efi_get_boot_option(id, NULL, &ouuid, &opath, NULL);
if (err < 0)
+ return false;
+ if (!sd_id128_equal(uuid, ouuid))
+ goto finish;
+
+ if (!streq_ptr(path, opath))
+ goto finish;
+
+ same = true;
+
+finish:
+ return same;
+}
+
+static int find_slot(sd_id128_t uuid, const char *path, uint16_t *id) {
+ uint16_t *options = NULL;
+ int n_options;
+ int i;
+ uint16_t new_id = 0;
+ bool existing = false;
+
+ n_options = efi_get_boot_options(&options);
+ if (n_options < 0)
+ return n_options;
+
+ /* find already existing sd-boot entry */
+ for (i = 0; i < n_options; i++)
+ if (same_entry(options[i], uuid, path)) {
+ new_id = options[i];
+ existing = true;
+ goto finish;
+ }
+
+ /* find free slot in the sorted BootXXXX variable list */
+ for (i = 0; i < n_options; i++)
+ if (i != options[i]) {
+ new_id = i;
+ goto finish;
+ }
+
+ /* use the next one */
+ if (i == 0xffff)
+ return -ENOSPC;
+ new_id = i;
+
+finish:
+ *id = new_id;
+ free(options);
+ return existing;
+}
+
+static int insert_into_order(uint16_t slot, bool first) {
+ uint16_t *order = NULL;
+ uint16_t *new_order;
+ int n_order;
+ int i;
+ int err = 0;
+
+ n_order = efi_get_boot_order(&order);
+ if (n_order <= 0) {
+ /* no entry, add us */
+ err = efi_set_boot_order(&slot, 1);
+ goto finish;
+ }
+
+ /* are we the first and only one? */
+ if (n_order == 1 && order[0] == slot)
+ goto finish;
+
+ /* are we already in the boot order? */
+ for (i = 0; i < n_order; i++) {
+ if (order[i] != slot)
+ continue;
+
+ /* we do not require to be the first one, all is fine */
+ if (!first)
+ goto finish;
+
+ /* move us to the first slot */
+ memmove(&order[1], order, i * sizeof(uint16_t));
+ order[0] = slot;
+ efi_set_boot_order(order, n_order);
+ goto finish;
+ }
+
+ /* extend array */
+ new_order = realloc(order, (n_order+1) * sizeof(uint16_t));
+ if (!new_order) {
+ err = -ENOMEM;
+ goto finish;
+ }
+ order = new_order;
+
+ /* add us to the top or end of the list */
+ if (first) {
+ memmove(&order[1], order, n_order * sizeof(uint16_t));
+ order[0] = slot;
+ } else
+ order[n_order] = slot;
+
+ efi_set_boot_order(order, n_order+1);
+
+finish:
+ free(order);
+ return err;
+}
+
+static int remove_from_order(uint16_t slot) {
+ uint16_t *order = NULL;
+ int n_order;
+ int i;
+ int err = 0;
+
+ n_order = efi_get_boot_order(&order);
+ if (n_order < 0)
+ return n_order;
+ if (n_order == 0)
+ return 0;
+
+ for (i = 0; i < n_order; i++) {
+ if (order[i] != slot)
+ continue;
+
+ if (i+1 < n_order)
+ memmove(&order[i], &order[i+1], (n_order - i) * sizeof(uint16_t));
+ efi_set_boot_order(order, n_order-1);
+ break;
+ }
+
+ free(order);
+ return err;
+}
+
+static int install_variables(const char *esp_path,
+ uint32_t part, uint64_t pstart, uint64_t psize,
+ sd_id128_t uuid, const char *path,
+ bool first) {
+ char *p = NULL;
+ uint16_t *options = NULL;
+ uint16_t slot;
+ int r;
+
+ if (!is_efi_boot()) {
+ fprintf(stderr, "Not booted with EFI, skipping EFI variable setup.\n");
+ return 0;
+ }
+
+ if (asprintf(&p, "%s%s", esp_path, path) < 0) {
+ fprintf(stderr, "Out of memory.\n");
return -ENOMEM;
+ }
- err = boot_info_query(info);
-
- printf("System:\n");
- printf(" Machine ID: %s\n", sd_id128_to_string(info->machine_id, buf));
- printf(" Boot ID: %s\n", sd_id128_to_string(info->boot_id, buf));
- if (info->fw_type)
- printf(" Firmware: %s (%s)\n", info->fw_type, strna(info->fw_info));
- if (info->fw_secure_boot >= 0)
- printf(" Secure Boot: %s\n", info->fw_secure_boot ? "enabled" : "disabled");
- if (info->fw_secure_boot_setup_mode >= 0)
- printf(" Setup Mode: %s\n", info->fw_secure_boot_setup_mode ? "setup" : "user");
- printf("\n");
+ if (access(p, F_OK) < 0) {
+ if (errno == ENOENT)
+ r = 0;
+ else
+ r = -errno;
+ goto finish;
+ }
- if (info->fw_entry_active >= 0) {
- printf("Selected Firmware Entry:\n");
- printf(" Title: %s\n", strna(info->fw_entries[info->fw_entry_active].title));
- if (!sd_id128_equal(info->fw_entries[info->fw_entry_active].part_uuid, SD_ID128_NULL))
- printf(" Partition: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
- SD_ID128_FORMAT_VAL(info->fw_entries[info->fw_entry_active].part_uuid));
+ r = find_slot(uuid, path, &slot);
+ if (r < 0) {
+ if (r == -ENOENT)
+ fprintf(stderr, "Failed to access EFI variables. Is the \"efivarfs\" filesystem mounted?\n");
else
- printf(" Partition: n/a\n");
- if (info->fw_entries[info->fw_entry_active].path)
- printf(" File: %s%s\n", draw_special_char(DRAW_TREE_RIGHT), info->fw_entries[info->fw_entry_active].path);
+ fprintf(stderr, "Failed to determine current boot order: %s\n", strerror(-r));
+ goto finish;
}
- printf("\n");
- if (info->loader) {
- printf("Boot Loader:\n");
- printf(" Product: %s\n", info->loader);
- if (!sd_id128_equal(info->loader_part_uuid, SD_ID128_NULL))
- printf(" Partition: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
- SD_ID128_FORMAT_VAL(info->loader_part_uuid));
- else
- printf(" Partition: n/a\n");
- printf(" File: %s%s\n", draw_special_char(DRAW_TREE_RIGHT), strna(info->loader_image_path));
- printf("\n");
+ if (first || r == false) {
+ r = efi_add_boot_option(slot, "Linux Boot Manager",
+ part, pstart, psize,
+ uuid, path);
+ if (r < 0) {
+ fprintf(stderr, "Failed to create EFI Boot variable entry: %s\n", strerror(-r));
+ goto finish;
+ }
+ fprintf(stderr, "Created EFI boot entry \"Linux Boot Manager\".\n");
+ }
+
+ insert_into_order(slot, first);
+
+finish:
+ free(p);
+ free(options);
+ return r;
+}
+
+static int remove_boot_efi(const char *esp_path) {
+ struct dirent *de;
+ char *p = NULL, *q = NULL;
+ DIR *d = NULL;
+ int r = 0, c = 0;
+
+ if (asprintf(&p, "%s/EFI/Boot", esp_path) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ d = opendir(p);
+ if (!d) {
+ if (errno == ENOENT) {
+ r = 0;
+ goto finish;
+ }
+
+ fprintf(stderr, "Failed to read %s: %m\n", p);
+ r = -errno;
+ goto finish;
+ }
+
+ while ((de = readdir(d))) {
+ char *v;
+ size_t n;
+ FILE *f;
+
+ if (de->d_name[0] == '.')
+ continue;
+
+ n = strlen(de->d_name);
+ if (n < 4 || strcasecmp(de->d_name + n - 4, ".EFI") != 0)
+ continue;
+
+ if (strncasecmp(de->d_name, "Boot", 4) != 0)
+ continue;
+
+ free(q);
+ q = NULL;
+ if (asprintf(&q, "%s/%s", p, de->d_name) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ f = fopen(q, "re");
+ if (!f) {
+ fprintf(stderr, "Failed to open %s for reading: %m\n", q);
+ r = -errno;
+ goto finish;
+ }
+
+ r = get_file_version(f, &v);
+ fclose(f);
+
+ if (r < 0)
+ goto finish;
+
+ if (r > 0 && strncmp(v, "sd-boot ", 10) == 0) {
+
+ r = unlink(q);
+ if (r < 0) {
+ fprintf(stderr, "Failed to remove %s: %m\n", q);
+ r = -errno;
+ free(v);
+ goto finish;
+ } else
+ fprintf(stderr, "Removed %s.\n", q);
+ }
+
+ c++;
+ free(v);
+ }
+
+ r = c;
+
+finish:
+ if (d)
+ closedir(d);
+ free(p);
+ free(q);
+
+ return r;
+}
+
+static int rmdir_one(const char *prefix, const char *suffix) {
+ char *p;
- if (info->loader_entry_active >= 0) {
- printf("Selected Boot Loader Entry:\n");
- printf(" Title: %s\n", strna(info->loader_entries[info->loader_entry_active].title));
- printf(" File: %s\n", info->loader_entries[info->loader_entry_active].path);
- if (info->loader_options_added)
- printf(" Options: %s\n", info->loader_options_added);
+ if (asprintf(&p, "%s/%s", prefix, suffix) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ if (rmdir(p) < 0) {
+ if (errno != ENOENT && errno != ENOTEMPTY) {
+ fprintf(stderr, "Failed to remove %s: %m\n", p);
+ free(p);
+ return -errno;
}
} else
- printf("No suitable data is provided by the boot manager. See:\n"
- " http://www.freedesktop.org/wiki/Software/systemd/BootLoaderInterface\n"
- " http://www.freedesktop.org/wiki/Specifications/BootLoaderSpec\n"
- "for details.\n");
- printf("\n");
+ fprintf(stderr, "Removed %s.\n", p);
- boot_info_free(info);
- return err;
+ free(p);
+ return 0;
}
-static int bootctl_main(int argc, char *argv[]) {
- static const struct {
- const char* verb;
- const enum {
- MORE,
- LESS,
- EQUAL
- } argc_cmp;
- const int argc;
- int (* const dispatch)(char **args, unsigned n);
- } verbs[] = {
- { "status", LESS, 1, show_status },
+
+static int remove_binaries(const char *esp_path) {
+ char *p;
+ int r, q;
+
+ if (asprintf(&p, "%s/EFI/sd-boot", esp_path) < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ r = rm_rf(p, false, false, false);
+ free(p);
+
+ q = remove_boot_efi(esp_path);
+ if (q < 0 && r == 0)
+ r = q;
+
+ q = rmdir_one(esp_path, "loader/entries");
+ if (q < 0 && r == 0)
+ r = q;
+
+ q = rmdir_one(esp_path, "loader");
+ if (q < 0 && r == 0)
+ r = q;
+
+ q = rmdir_one(esp_path, "EFI/Boot");
+ if (q < 0 && r == 0)
+ r = q;
+
+ q = rmdir_one(esp_path, "EFI/sd-boot");
+ if (q < 0 && r == 0)
+ r = q;
+
+ q = rmdir_one(esp_path, "EFI");
+ if (q < 0 && r == 0)
+ r = q;
+
+ return r;
+}
+
+static int remove_variables(sd_id128_t uuid, const char *path, bool in_order) {
+ uint16_t slot;
+ int r;
+
+ if (!is_efi_boot())
+ return 0;
+
+ r = find_slot(uuid, path, &slot);
+ if (r != 1)
+ return 0;
+
+ r = efi_remove_boot_option(slot);
+ if (r < 0)
+ return r;
+
+ if (in_order)
+ remove_from_order(slot);
+
+ return 0;
+}
+
+static int install_loader_config(const char *esp_path) {
+ char *p = NULL;
+ char line[64];
+ char *machine = NULL;
+ FILE *f;
+
+ f = fopen("/etc/machine-id", "re");
+ if (!f)
+ return -errno;
+
+ if (fgets(line, sizeof(line), f) != NULL) {
+ char *s;
+
+ s = strchr(line, '\n');
+ if (s)
+ s[0] = '\0';
+ if (strlen(line) == 32)
+ machine = line;
+ }
+
+ fclose(f);
+
+ if (!machine)
+ return -ESRCH;
+
+ if (asprintf(&p, "%s/%s", esp_path, "loader/loader.conf") < 0) {
+ fprintf(stderr, "Out of memory.\n");
+ return -ENOMEM;
+ }
+
+ f = fopen(p, "wxe");
+ if (f) {
+ fprintf(f, "#timeout 3\n");
+ fprintf(f, "default %s-*\n", machine);
+ fclose(f);
+ }
+
+ free(p);
+ return 0;
+}
+
+static int help(void) {
+ printf("%s [COMMAND] [OPTIONS...]\n"
+ "\n"
+ "Install, update or remove the sdboot EFI boot manager.\n\n"
+ " -h --help Show this help\n"
+ " --version Print version\n"
+ " --path=PATH Path to the EFI System Partition (ESP)\n"
+ " --no-variables Don't touch EFI variables\n"
+ "\n"
+ "Comands:\n"
+ " status Show status of installed sd-boot and EFI variables\n"
+ " install Install sd-boot to the ESP and EFI variables\n"
+ " update Update sd-boot in the ESP and EFI variables\n"
+ " remove Remove sd-boot from the ESP and EFI variables\n",
+ program_invocation_short_name);
+
+ return 0;
+}
+
+static const char *arg_path = NULL;
+static bool arg_touch_variables = true;
+
+static int parse_argv(int argc, char *argv[]) {
+ enum {
+ ARG_PATH = 0x100,
+ ARG_VERSION,
+ ARG_NO_VARIABLES,
};
- int left;
- unsigned i;
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "path", required_argument, NULL, ARG_PATH },
+ { "no-variables", no_argument, NULL, ARG_NO_VARIABLES },
+ { NULL, 0, NULL, 0 }
+ };
+
+ int c;
assert(argc >= 0);
assert(argv);
- left = argc - optind;
+ while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) {
+ switch (c) {
- if (left <= 0)
- /* Special rule: no arguments means "status" */
- i = 0;
- else {
- if (streq(argv[optind], "help")) {
+ case 'h':
help();
return 0;
- }
- for (i = 0; i < ELEMENTSOF(verbs); i++)
- if (streq(argv[optind], verbs[i].verb))
- break;
+ case ARG_VERSION:
+ printf(VERSION "\n");
+ return 0;
- if (i >= ELEMENTSOF(verbs)) {
- log_error("Unknown operation %s", argv[optind]);
+ case ARG_PATH:
+ arg_path = optarg;
+ break;
+
+ case ARG_NO_VARIABLES:
+ arg_touch_variables = false;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ fprintf(stderr, "Unknown option code '%c'.\n", c);
return -EINVAL;
}
}
- switch (verbs[i].argc_cmp) {
+ return 1;
+}
- case EQUAL:
- if (left != verbs[i].argc) {
- log_error("Invalid number of arguments.");
- return -EINVAL;
+static int bootctl_main(int argc, char*argv[]) {
+ enum action {
+ ACTION_STATUS,
+ ACTION_INSTALL,
+ ACTION_UPDATE,
+ ACTION_REMOVE
+ } arg_action = ACTION_STATUS;
+ static const struct {
+ const char* verb;
+ enum action action;
+ } verbs[] = {
+ { "status", ACTION_STATUS },
+ { "install", ACTION_INSTALL },
+ { "update", ACTION_UPDATE },
+ { "remove", ACTION_REMOVE },
+ };
+
+ sd_id128_t uuid = {};
+ uint32_t part = 0;
+ uint64_t pstart = 0;
+ uint64_t psize = 0;
+ unsigned int i;
+ int q;
+ int r;
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ goto finish;
+
+ if (argv[optind]) {
+ for (i = 0; i < ELEMENTSOF(verbs); i++) {
+ if (!streq(argv[optind], verbs[i].verb))
+ continue;
+ arg_action = verbs[i].action;
+ break;
+ }
+ if (i >= ELEMENTSOF(verbs)) {
+ fprintf(stderr, "Unknown operation %s\n", argv[optind]);
+ r = -EINVAL;
+ goto finish;
}
+ }
+
+ if (!arg_path)
+ arg_path = "/boot";
+
+ if (geteuid() != 0) {
+ fprintf(stderr, "Need to be root.\n");
+ r = -EPERM;
+ goto finish;
+ }
+
+ r = verify_esp(arg_path, &part, &pstart, &psize, &uuid);
+ if (r == -ENODEV && !arg_path)
+ fprintf(stderr, "You might want to use --path= to indicate the path to your ESP, in case it is not mounted to /boot.\n");
+ if (r < 0)
+ goto finish;
+
+ switch (arg_action) {
+ case ACTION_STATUS: {
+ _cleanup_free_ char *fw_type = NULL;
+ _cleanup_free_ char *fw_info = NULL;
+ _cleanup_free_ char *loader = NULL;
+ _cleanup_free_ char *loader_path = NULL;
+ sd_id128_t loader_part_uuid = {};
+
+ efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderFirmwareType", &fw_type);
+ efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderFirmwareInfo", &fw_info);
+ efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderInfo", &loader);
+ efi_get_variable_string(EFI_VENDOR_LOADER, "LoaderImageIdentifier", &loader_path);
+ efi_tilt_backslashes(loader_path);
+ efi_loader_get_device_part_uuid(&loader_part_uuid);
+
+ printf("System:\n");
+ printf(" Firmware: %s (%s)\n", fw_type, strna(fw_info));
+ printf(" Secure Boot: %s\n", is_efi_secure_boot() ? "enabled" : "disabled");
+ printf(" Setup Mode: %s\n", is_efi_secure_boot_setup_mode() ? "setup" : "user");
+ printf("\n");
+
+ printf("Loader:\n");
+ printf(" Product: %s\n", strna(loader));
+ if (!sd_id128_equal(loader_part_uuid, SD_ID128_NULL))
+ printf(" Partition: /dev/disk/by-partuuid/%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\n",
+ SD_ID128_FORMAT_VAL(loader_part_uuid));
+ else
+ printf(" Partition: n/a\n");
+ printf(" File: %s%s\n", draw_special_char(DRAW_TREE_RIGHT), strna(loader_path));
+ printf("\n");
+
+ r = status_binaries(arg_path, uuid);
+ if (r < 0)
+ goto finish;
+
+ if (arg_touch_variables)
+ r = status_variables();
break;
+ }
- case MORE:
- if (left < verbs[i].argc) {
- log_error("Too few arguments.");
- return -EINVAL;
- }
+ case ACTION_INSTALL:
+ case ACTION_UPDATE:
+ umask(0002);
+
+ r = install_binaries(arg_path, arg_action == ACTION_INSTALL);
+ if (r < 0)
+ goto finish;
+
+ if (arg_action == ACTION_INSTALL)
+ install_loader_config(arg_path);
+
+ if (arg_touch_variables)
+ r = install_variables(arg_path,
+ part, pstart, psize, uuid,
+ "/EFI/systemd/sd-boot" EFI_MACHINE_TYPE_NAME ".efi",
+ arg_action == ACTION_INSTALL);
break;
- case LESS:
- if (left > verbs[i].argc) {
- log_error("Too many arguments.");
- return -EINVAL;
+ case ACTION_REMOVE:
+ r = remove_binaries(arg_path);
+
+ if (arg_touch_variables) {
+ q = remove_variables(uuid, "/EFI/systemd/sd-boot" EFI_MACHINE_TYPE_NAME ".efi", true);
+ if (q < 0 && r == 0)
+ r = q;
}
break;
-
- default:
- assert_not_reached("Unknown comparison operator.");
}
- return verbs[i].dispatch(argv + optind, left);
+finish:
+ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
int main(int argc, char *argv[]) {
diff --git a/src/shared/efivars.c b/src/shared/efivars.c
index a319574527..5b3c5f09c8 100644
--- a/src/shared/efivars.c
+++ b/src/shared/efivars.c
@@ -31,6 +31,40 @@
#ifdef ENABLE_EFI
+#define LOAD_OPTION_ACTIVE 0x00000001
+#define MEDIA_DEVICE_PATH 0x04
+#define MEDIA_HARDDRIVE_DP 0x01
+#define MEDIA_FILEPATH_DP 0x04
+#define SIGNATURE_TYPE_GUID 0x02
+#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02
+#define END_DEVICE_PATH_TYPE 0x7f
+#define END_ENTIRE_DEVICE_PATH_SUBTYPE 0xff
+
+struct boot_option {
+ uint32_t attr;
+ uint16_t path_len;
+ uint16_t title[];
+} __attribute__((packed));
+
+struct drive_path {
+ uint32_t part_nr;
+ uint64_t part_start;
+ uint64_t part_size;
+ char signature[16];
+ uint8_t mbr_type;
+ uint8_t signature_type;
+} __attribute__((packed));
+
+struct device_path {
+ uint8_t type;
+ uint8_t sub_type;
+ uint16_t length;
+ union {
+ uint16_t path[0];
+ struct drive_path drive;
+ };
+} __attribute__((packed));
+
bool is_efi_boot(void) {
return access("/sys/firmware/efi", F_OK) >= 0;
}
@@ -128,6 +162,66 @@ int efi_get_variable(
return 0;
}
+int efi_set_variable(
+ sd_id128_t vendor,
+ const char *name,
+ const void *value,
+ size_t size) {
+
+ struct var {
+ uint32_t attr;
+ char buf[];
+ } __attribute__((packed)) *buf = NULL;
+ char *p = NULL;
+ int fd = -1;
+ int r;
+
+ assert(name);
+
+ if (asprintf(&p,
+ "/sys/firmware/efi/efivars/%s-%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+ name, SD_ID128_FORMAT_VAL(vendor)) < 0)
+ return -ENOMEM;
+
+ if (size == 0) {
+ r = unlink(p);
+ goto finish;
+ }
+
+ fd = open(p, O_WRONLY|O_CREAT|O_NOCTTY|O_CLOEXEC, 0644);
+ if (fd < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ buf = malloc(sizeof(uint32_t) + size);
+ if (!buf) {
+ r = -errno;
+ goto finish;
+ }
+
+ buf->attr = EFI_VARIABLE_NON_VOLATILE|EFI_VARIABLE_BOOTSERVICE_ACCESS|EFI_VARIABLE_RUNTIME_ACCESS;
+ memcpy(buf->buf, value, size);
+
+ r = write(fd, buf, sizeof(uint32_t) + size);
+ if (r < 0) {
+ r = -errno;
+ goto finish;
+ }
+
+ if ((size_t)r != sizeof(uint32_t) + size) {
+ r = -EIO;
+ goto finish;
+ }
+
+finish:
+ if (fd >= 0)
+ close(fd);
+ free(buf);
+ free(p);
+ return r;
+}
+
int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p) {
_cleanup_free_ void *s = NULL;
size_t ss = 0;
@@ -179,8 +273,8 @@ int efi_get_boot_option(
uint16_t id,
char **title,
sd_id128_t *part_uuid,
- char **path) {
-
+ char **path,
+ bool *active) {
struct boot_option {
uint32_t attr;
uint16_t path_len;
@@ -250,23 +344,23 @@ int efi_get_boot_option(
break;
/* Type 0x7F – End of Hardware Device Path, Sub-Type 0xFF – End Entire Device Path */
- if (dpath->type == 0x7f && dpath->sub_type == 0xff)
+ if (dpath->type == END_DEVICE_PATH_TYPE && dpath->sub_type == END_ENTIRE_DEVICE_PATH_SUBTYPE)
break;
dnext += dpath->length;
/* Type 0x04 – Media Device Path */
- if (dpath->type != 0x04)
+ if (dpath->type != MEDIA_DEVICE_PATH)
continue;
/* Sub-Type 1 – Hard Drive */
- if (dpath->sub_type == 0x01) {
+ if (dpath->sub_type == MEDIA_HARDDRIVE_DP) {
/* 0x02 – GUID Partition Table */
- if (dpath->drive.mbr_type != 0x02)
+ if (dpath->drive.mbr_type != MBR_TYPE_EFI_PARTITION_TABLE_HEADER)
continue;
/* 0x02 – GUID signature */
- if (dpath->drive.signature_type != 0x02)
+ if (dpath->drive.signature_type != SIGNATURE_TYPE_GUID)
continue;
if (part_uuid)
@@ -275,8 +369,9 @@ int efi_get_boot_option(
}
/* Sub-Type 4 – File Path */
- if (dpath->sub_type == 0x04 && !p && path) {
+ if (dpath->sub_type == MEDIA_FILEPATH_DP && !p && path) {
p = utf16_to_utf8(dpath->path, dpath->length-4);
+ efi_tilt_backslashes(p);
continue;
}
}
@@ -288,6 +383,8 @@ int efi_get_boot_option(
*part_uuid = p_uuid;
if (path)
*path = p;
+ if (active)
+ *active = !!header->attr & LOAD_OPTION_ACTIVE;
return 0;
err:
@@ -296,6 +393,126 @@ err:
return err;
}
+static void to_utf16(uint16_t *dest, const char *src) {
+ int i;
+
+ for (i = 0; src[i] != '\0'; i++)
+ dest[i] = src[i];
+ dest[i] = '\0';
+}
+
+struct guid {
+ uint32_t u1;
+ uint16_t u2;
+ uint16_t u3;
+ uint8_t u4[8];
+} __attribute__((packed));
+
+static void id128_to_efi_guid(sd_id128_t id, void *guid) {
+ struct guid *uuid = guid;
+
+ uuid->u1 = id.bytes[0] << 24 | id.bytes[1] << 16 | id.bytes[2] << 8 | id.bytes[3];
+ uuid->u2 = id.bytes[4] << 8 | id.bytes[5];
+ uuid->u3 = id.bytes[6] << 8 | id.bytes[7];
+ memcpy(uuid->u4, id.bytes+8, sizeof(uuid->u4));
+}
+
+static uint16_t *tilt_slashes(uint16_t *s) {
+ uint16_t *p;
+
+ for (p = s; *p; p++)
+ if (*p == '/')
+ *p = '\\';
+
+ return s;
+}
+
+char *efi_tilt_backslashes(char *s) {
+ char *p;
+
+ for (p = s; *p; p++)
+ if (*p == '\\')
+ *p = '/';
+
+ return s;
+}
+
+int efi_add_boot_option(uint16_t id, const char *title,
+ uint32_t part, uint64_t pstart, uint64_t psize,
+ sd_id128_t part_uuid, const char *path) {
+ char boot_id[9];
+ char *buf;
+ size_t size;
+ size_t title_len;
+ size_t path_len;
+ struct boot_option *option;
+ struct device_path *devicep;
+ int err;
+
+ title_len = (strlen(title)+1) * 2;
+ path_len = (strlen(path)+1) * 2;
+
+ buf = calloc(sizeof(struct boot_option) + title_len +
+ sizeof(struct drive_path) +
+ sizeof(struct device_path) + path_len, 1);
+ if (!buf) {
+ err = -ENOMEM;
+ goto finish;
+ }
+
+ /* header */
+ option = (struct boot_option *)buf;
+ option->attr = LOAD_OPTION_ACTIVE;
+ option->path_len = offsetof(struct device_path, drive) + sizeof(struct drive_path) +
+ offsetof(struct device_path, path) + path_len +
+ offsetof(struct device_path, path);
+ to_utf16(option->title, title);
+ size = offsetof(struct boot_option, title) + title_len;
+
+ /* partition info */
+ devicep = (struct device_path *)(buf + size);
+ devicep->type = MEDIA_DEVICE_PATH;
+ devicep->sub_type = MEDIA_HARDDRIVE_DP;
+ devicep->length = offsetof(struct device_path, drive) + sizeof(struct drive_path);
+ devicep->drive.part_nr = part;
+ devicep->drive.part_start = pstart;
+ devicep->drive.part_size = psize;
+ devicep->drive.signature_type = SIGNATURE_TYPE_GUID;
+ devicep->drive.mbr_type = MBR_TYPE_EFI_PARTITION_TABLE_HEADER;
+ id128_to_efi_guid(part_uuid, devicep->drive.signature);
+ size += devicep->length;
+
+ /* path to loader */
+ devicep = (struct device_path *)(buf + size);
+ devicep->type = MEDIA_DEVICE_PATH;
+ devicep->sub_type = MEDIA_FILEPATH_DP;
+ devicep->length = offsetof(struct device_path, path) + path_len;
+ to_utf16(devicep->path, path);
+ tilt_slashes(devicep->path);
+ size += devicep->length;
+
+ /* end of path */
+ devicep = (struct device_path *)(buf + size);
+ devicep->type = END_DEVICE_PATH_TYPE;
+ devicep->sub_type = END_ENTIRE_DEVICE_PATH_SUBTYPE;
+ devicep->length = offsetof(struct device_path, path);
+ size += devicep->length;
+
+ snprintf(boot_id, sizeof(boot_id), "Boot%04X", id);
+ err = efi_set_variable(EFI_VENDOR_GLOBAL, boot_id, buf, size);
+
+finish:
+ free(buf);
+ return err;
+}
+
+int efi_remove_boot_option(uint16_t id) {
+ char boot_id[9];
+
+ snprintf(boot_id, sizeof(boot_id), "Boot%04X", id);
+ return efi_set_variable(EFI_VENDOR_GLOBAL, boot_id, NULL, 0);
+}
+
int efi_get_boot_order(uint16_t **order) {
void *buf;
size_t l;
@@ -320,6 +537,10 @@ int efi_get_boot_order(uint16_t **order) {
return (int) (l / sizeof(uint16_t));
}
+int efi_set_boot_order(uint16_t *order, size_t n) {
+ return efi_set_variable(EFI_VENDOR_GLOBAL, "BootOrder", order, n * sizeof(uint16_t));
+}
+
static int boot_id_hex(const char s[4]) {
int i;
int id = 0;
diff --git a/src/shared/efivars.h b/src/shared/efivars.h
index 7921bedc9f..82364565ba 100644
--- a/src/shared/efivars.h
+++ b/src/shared/efivars.h
@@ -30,17 +30,26 @@
#define EFI_VENDOR_LOADER SD_ID128_MAKE(4a,67,b0,82,0a,4c,41,cf,b6,c7,44,0b,29,bb,8c,4f)
#define EFI_VENDOR_GLOBAL SD_ID128_MAKE(8b,e4,df,61,93,ca,11,d2,aa,0d,00,e0,98,03,2b,8c)
+#define EFI_VARIABLE_NON_VOLATILE 0x0000000000000001
+#define EFI_VARIABLE_BOOTSERVICE_ACCESS 0x0000000000000002
+#define EFI_VARIABLE_RUNTIME_ACCESS 0x0000000000000004
bool is_efi_boot(void);
int is_efi_secure_boot(void);
int is_efi_secure_boot_setup_mode(void);
int efi_get_variable(sd_id128_t vendor, const char *name, uint32_t *attribute, void **value, size_t *size);
+int efi_set_variable(sd_id128_t vendor, const char *name, const void *value, size_t size);
int efi_get_variable_string(sd_id128_t vendor, const char *name, char **p);
-int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *partuuid, char **path);
+int efi_get_boot_option(uint16_t nr, char **title, sd_id128_t *part_uuid, char **path, bool *active);
+int efi_add_boot_option(uint16_t id, const char *title, uint32_t part, uint64_t pstart, uint64_t psize, sd_id128_t part_uuid, const char *path);
+int efi_remove_boot_option(uint16_t id);
int efi_get_boot_order(uint16_t **order);
+int efi_set_boot_order(uint16_t *order, size_t n);
int efi_get_boot_options(uint16_t **options);
int efi_loader_get_device_part_uuid(sd_id128_t *u);
int efi_loader_get_boot_usec(usec_t *firmware, usec_t *loader);
+
+char *efi_tilt_backslashes(char *s);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-11 05:45:37 +0000