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authorLennart Poettering <lennart@poettering.net>2019-01-23 16:18:29 +0100
committerLennart Poettering <lennart@poettering.net>2019-03-01 12:41:32 +0100
commitfbf45d22dad1ca7c02c74fa01755c8e843a34b84 (patch)
treed04e9cd9c080dc7e7a9a14e78855d0d3e36d649d /src/boot/bootctl.c
parenta2f8664e9a544d7547f4fcdbfe2fa6396b8f7654 (diff)
downloadsystemd-fbf45d22dad1ca7c02c74fa01755c8e843a34b84.tar.gz
bootctl: teach bootctl the new partition type
Diffstat (limited to 'src/boot/bootctl.c')
-rw-r--r--src/boot/bootctl.c350
1 files changed, 237 insertions, 113 deletions
diff --git a/src/boot/bootctl.c b/src/boot/bootctl.c
index ddbcac9200..482189f989 100644
--- a/src/boot/bootctl.c
+++ b/src/boot/bootctl.c
@@ -45,12 +45,20 @@
#include "verbs.h"
#include "virt.h"
-static char *arg_path = NULL;
-static bool arg_print_path = false;
+static char *arg_esp_path = NULL;
+static char *arg_xbootldr_path = NULL;
+static bool arg_print_esp_path = false;
+static bool arg_print_dollar_boot_path = false;
static bool arg_touch_variables = true;
static PagerFlags arg_pager_flags = 0;
-STATIC_DESTRUCTOR_REGISTER(arg_path, freep);
+STATIC_DESTRUCTOR_REGISTER(arg_esp_path, freep);
+STATIC_DESTRUCTOR_REGISTER(arg_xbootldr_path, freep);
+
+static const char *arg_dollar_boot_path(void) {
+ /* $BOOT shall be the XBOOTLDR partition if it exists, and otherwise the ESP */
+ return arg_xbootldr_path ?: arg_esp_path;
+}
static int acquire_esp(
bool unprivileged_mode,
@@ -62,24 +70,44 @@ static int acquire_esp(
char *np;
int r;
- /* Find the ESP, and log about errors. Note that find_esp_and_warn() will log in all error cases on its own,
- * except for ENOKEY (which is good, we want to show our own message in that case, suggesting use of --path=)
- * and EACCESS (only when we request unprivileged mode; in this case we simply eat up the error here, so that
- * --list and --status work too, without noise about this). */
+ /* Find the ESP, and log about errors. Note that find_esp_and_warn() will log in all error cases on
+ * its own, except for ENOKEY (which is good, we want to show our own message in that case,
+ * suggesting use of --esp-path=) and EACCESS (only when we request unprivileged mode; in this case
+ * we simply eat up the error here, so that --list and --status work too, without noise about
+ * this). */
- r = find_esp_and_warn(arg_path, unprivileged_mode, &np, ret_part, ret_pstart, ret_psize, ret_uuid);
+ r = find_esp_and_warn(arg_esp_path, unprivileged_mode, &np, ret_part, ret_pstart, ret_psize, ret_uuid);
if (r == -ENOKEY)
return log_error_errno(r,
"Couldn't find EFI system partition. It is recommended to mount it to /boot or /efi.\n"
- "Alternatively, use --path= to specify path to mount point.");
+ "Alternatively, use --esp-path= to specify path to mount point.");
if (r < 0)
return r;
- free_and_replace(arg_path, np);
+ free_and_replace(arg_esp_path, np);
+ log_debug("Using EFI System Partition at %s.", arg_esp_path);
+
+ return 1;
+}
- log_debug("Using EFI System Partition at %s.", arg_path);
+static int acquire_xbootldr(bool unprivileged_mode, sd_id128_t *ret_uuid) {
+ char *np;
+ int r;
- return 0;
+ r = find_xbootldr_and_warn(arg_xbootldr_path, unprivileged_mode, &np, ret_uuid);
+ if (r == -ENOKEY) {
+ log_debug_errno(r, "Didn't find an XBOOTLDR partition, using the ESP as $BOOT.");
+ if (ret_uuid)
+ *ret_uuid = SD_ID128_NULL;
+ return 0;
+ }
+ if (r < 0)
+ return r;
+
+ free_and_replace(arg_xbootldr_path, np);
+ log_debug("Using XBOOTLDR partition at %s as $BOOT.", arg_xbootldr_path);
+
+ return 1;
}
/* search for "#### LoaderInfo: systemd-boot 218 ####" string inside the binary */
@@ -134,10 +162,13 @@ finish:
}
static int enumerate_binaries(const char *esp_path, const char *path, const char *prefix) {
- char *p;
_cleanup_closedir_ DIR *d = NULL;
struct dirent *de;
- int r = 0, c = 0;
+ int c = 0, r;
+ char *p;
+
+ assert(esp_path);
+ assert(path);
p = strjoina(esp_path, "/", path);
d = opendir(p);
@@ -149,8 +180,8 @@ static int enumerate_binaries(const char *esp_path, const char *path, const char
}
FOREACH_DIRENT(de, d, break) {
- _cleanup_close_ int fd = -1;
_cleanup_free_ char *v = NULL;
+ _cleanup_close_ int fd = -1;
if (!endswith_no_case(de->d_name, ".efi"))
continue;
@@ -169,6 +200,7 @@ static int enumerate_binaries(const char *esp_path, const char *path, const char
printf(" File: %s/%s/%s (%s%s%s)\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path, de->d_name, ansi_highlight(), v, ansi_normal());
else
printf(" File: %s/%s/%s\n", special_glyph(SPECIAL_GLYPH_TREE_RIGHT), path, de->d_name);
+
c++;
}
@@ -191,16 +223,16 @@ static int status_binaries(const char *esp_path, sd_id128_t partition) {
printf("\n");
r = enumerate_binaries(esp_path, "EFI/systemd", NULL);
+ if (r < 0)
+ return r;
if (r == 0)
log_info("systemd-boot not installed in ESP.");
- else if (r < 0)
- return r;
r = enumerate_binaries(esp_path, "EFI/BOOT", "boot");
+ if (r < 0)
+ return r;
if (r == 0)
log_info("No default/fallback boot loader installed in ESP.");
- else if (r < 0)
- return r;
printf("\n");
@@ -319,11 +351,11 @@ static int boot_entry_show(const BootEntry *e, bool show_as_default) {
return 0;
}
-static int status_entries(const char *esp_path, sd_id128_t partition) {
+static int status_entries(const char *esp_path, const char *xbootldr_path) {
_cleanup_(boot_config_free) BootConfig config = {};
int r;
- r = boot_entries_load_config(esp_path, NULL, &config);
+ r = boot_entries_load_config(esp_path, xbootldr_path, &config);
if (r < 0)
return r;
@@ -469,20 +501,21 @@ static int mkdir_one(const char *prefix, const char *suffix) {
return 0;
}
-static const char *efi_subdirs[] = {
+static const char *const esp_subdirs[] = {
"EFI",
"EFI/systemd",
"EFI/BOOT",
"loader",
- "loader/entries",
+ /* Note that "/loader/entries" is not listed here, since it should be placed in $BOOT, which might
+ * not necessarily be the ESP */
NULL
};
-static int create_dirs(const char *esp_path) {
- const char **i;
+static int create_esp_subdirs(const char *esp_path) {
+ const char *const *i;
int r;
- STRV_FOREACH(i, efi_subdirs) {
+ STRV_FOREACH(i, esp_subdirs) {
r = mkdir_one(esp_path, *i);
if (r < 0)
return r;
@@ -521,17 +554,6 @@ static int install_binaries(const char *esp_path, bool force) {
_cleanup_closedir_ DIR *d = NULL;
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(BOOTLIBDIR);
if (!d)
return log_error_errno(errno, "Failed to open \""BOOTLIBDIR"\": %m");
@@ -752,18 +774,36 @@ static int rmdir_one(const char *prefix, const char *suffix) {
p = strjoina(prefix, "/", suffix);
if (rmdir(p) < 0) {
- if (!IN_SET(errno, ENOENT, ENOTEMPTY))
- return log_error_errno(errno, "Failed to remove \"%s\": %m", p);
+ bool ignore = IN_SET(errno, ENOENT, ENOTEMPTY);
+
+ log_full_errno(ignore ? LOG_DEBUG : LOG_ERR, errno,
+ "Failed to remove directory \"%s\": %m", p);
+ if (!ignore)
+ return -errno;
} else
log_info("Removed \"%s\".", p);
return 0;
}
+static int remove_esp_subdirs(const char *esp_path) {
+ size_t i;
+ int r = 0;
+
+ for (i = ELEMENTSOF(esp_subdirs)-1; i > 0; i--) {
+ int q;
+
+ q = rmdir_one(esp_path, esp_subdirs[i-1]);
+ if (q < 0 && r >= 0)
+ r = q;
+ }
+
+ return r;
+}
+
static int remove_binaries(const char *esp_path) {
char *p;
int r, q;
- unsigned i;
p = strjoina(esp_path, "/EFI/systemd");
r = rm_rf(p, REMOVE_ROOT|REMOVE_PHYSICAL);
@@ -772,15 +812,31 @@ static int remove_binaries(const char *esp_path) {
if (q < 0 && r == 0)
r = q;
- for (i = ELEMENTSOF(efi_subdirs)-1; i > 0; i--) {
- q = rmdir_one(esp_path, efi_subdirs[i-1]);
- if (q < 0 && r == 0)
- r = q;
- }
-
return r;
}
+static int remove_loader_config(const char *esp_path) {
+ const char *p;
+
+ assert(esp_path);
+
+ p = strjoina(esp_path, "/loader/loader.conf");
+ if (unlink(p) < 0) {
+ log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno, "Failed to unlink file \"%s\": %m", p);
+ if (errno != ENOENT)
+ return -errno;
+ } else
+ log_info("Removed \"%s\".", p);
+
+ return 0;
+}
+
+static int remove_entries_directory(const char *dollar_boot_path) {
+ assert(dollar_boot_path);
+
+ return rmdir_one(dollar_boot_path, "/loader/entries");
+}
+
static int remove_variables(sd_id128_t uuid, const char *path, bool in_order) {
uint16_t slot;
int r;
@@ -803,7 +859,6 @@ static int remove_variables(sd_id128_t uuid, const char *path, bool in_order) {
}
static int install_loader_config(const char *esp_path) {
-
char machine_string[SD_ID128_STRING_MAX];
_cleanup_(unlink_and_freep) char *t = NULL;
_cleanup_fclose_ FILE *f = NULL;
@@ -811,15 +866,14 @@ static int install_loader_config(const char *esp_path) {
const char *p;
int r, fd;
- r = sd_id128_get_machine(&machine_id);
- if (r < 0)
- return log_error_errno(r, "Failed to get machine id: %m");
-
p = strjoina(esp_path, "/loader/loader.conf");
-
if (access(p, F_OK) >= 0) /* Silently skip creation if the file already exists (early check) */
return 0;
+ r = sd_id128_get_machine(&machine_id);
+ if (r < 0)
+ return log_error_errno(r, "Failed to get machine id: %m");
+
fd = open_tmpfile_linkable(p, O_WRONLY|O_CLOEXEC, &t);
if (fd < 0)
return log_error_errno(fd, "Failed to open \"%s\" for writing: %m", p);
@@ -845,10 +899,15 @@ static int install_loader_config(const char *esp_path) {
return log_error_errno(r, "Failed to move \"%s\" into place: %m", p);
t = mfree(t);
-
return 1;
}
+static int install_entries_directory(const char *dollar_boot_path) {
+ assert(dollar_boot_path);
+
+ return mkdir_one(dollar_boot_path, "/loader/entries");
+}
+
static int help(int argc, char *argv[], void *userdata) {
_cleanup_free_ char *link = NULL;
int r;
@@ -859,21 +918,23 @@ static int help(int argc, char *argv[], void *userdata) {
printf("%s [COMMAND] [OPTIONS...]\n\n"
"Install, update or remove the systemd-boot 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"
- " -p --print-path Print path to the EFI partition\n"
- " --no-variables Don't touch EFI variables\n"
- " --no-pager Do not pipe output into a pager\n"
+ " -h --help Show this help\n"
+ " --version Print version\n"
+ " --esp-path=PATH Path to the EFI System Partition (ESP)\n"
+ " --boot-path=PATH Path to the $BOOT partition\n"
+ " -p --print-esp-path Print path to the EFI System Partition\n"
+ " --print-boot-path Print path to the $BOOT partition\n"
+ " --no-variables Don't touch EFI variables\n"
+ " --no-pager Do not pipe output into a pager\n"
"\nBoot Loader Commands:\n"
- " status Show status of installed systemd-boot and EFI variables\n"
- " install Install systemd-boot to the ESP and EFI variables\n"
- " update Update systemd-boot in the ESP and EFI variables\n"
- " remove Remove systemd-boot from the ESP and EFI variables\n"
+ " status Show status of installed systemd-boot and EFI variables\n"
+ " install Install systemd-boot to the ESP and EFI variables\n"
+ " update Update systemd-boot in the ESP and EFI variables\n"
+ " remove Remove systemd-boot from the ESP and EFI variables\n"
"\nBoot Loader Entries Commands:\n"
- " list List boot loader entries\n"
- " set-default ID Set default boot loader entry\n"
- " set-oneshot ID Set default boot loader entry, for next boot only\n"
+ " list List boot loader entries\n"
+ " set-default ID Set default boot loader entry\n"
+ " set-oneshot ID Set default boot loader entry, for next boot only\n"
"\nSee the %s for details.\n"
, program_invocation_short_name
, link);
@@ -883,19 +944,25 @@ static int help(int argc, char *argv[], void *userdata) {
static int parse_argv(int argc, char *argv[]) {
enum {
- ARG_PATH = 0x100,
+ ARG_ESP_PATH = 0x100,
+ ARG_BOOT_PATH,
+ ARG_PRINT_BOOT_PATH,
ARG_VERSION,
ARG_NO_VARIABLES,
ARG_NO_PAGER,
};
static const struct option options[] = {
- { "help", no_argument, NULL, 'h' },
- { "version", no_argument, NULL, ARG_VERSION },
- { "path", required_argument, NULL, ARG_PATH },
- { "print-path", no_argument, NULL, 'p' },
- { "no-variables", no_argument, NULL, ARG_NO_VARIABLES },
- { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "esp-path", required_argument, NULL, ARG_ESP_PATH },
+ { "path", required_argument, NULL, ARG_ESP_PATH }, /* Compatibility alias */
+ { "boot-path", required_argument, NULL, ARG_BOOT_PATH },
+ { "print-esp-path", no_argument, NULL, 'p' },
+ { "print-path", no_argument, NULL, 'p' }, /* Compatibility alias */
+ { "print-boot-path", no_argument, NULL, ARG_PRINT_BOOT_PATH },
+ { "no-variables", no_argument, NULL, ARG_NO_VARIABLES },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
{}
};
@@ -914,14 +981,24 @@ static int parse_argv(int argc, char *argv[]) {
case ARG_VERSION:
return version();
- case ARG_PATH:
- r = free_and_strdup(&arg_path, optarg);
+ case ARG_ESP_PATH:
+ r = free_and_strdup(&arg_esp_path, optarg);
+ if (r < 0)
+ return log_oom();
+ break;
+
+ case ARG_BOOT_PATH:
+ r = free_and_strdup(&arg_xbootldr_path, optarg);
if (r < 0)
return log_oom();
break;
case 'p':
- arg_print_path = true;
+ arg_print_esp_path = true;
+ break;
+
+ case ARG_PRINT_BOOT_PATH:
+ arg_print_dollar_boot_path = true;
break;
case ARG_NO_VARIABLES:
@@ -951,23 +1028,33 @@ static void read_loader_efi_var(const char *name, char **var) {
}
static int verb_status(int argc, char *argv[], void *userdata) {
-
- sd_id128_t uuid = SD_ID128_NULL;
+ sd_id128_t esp_uuid = SD_ID128_NULL, xbootldr_uuid = SD_ID128_NULL;
int r, k;
- r = acquire_esp(geteuid() != 0, NULL, NULL, NULL, &uuid);
-
- if (arg_print_path) {
+ r = acquire_esp(geteuid() != 0, NULL, NULL, NULL, &esp_uuid);
+ if (arg_print_esp_path) {
if (r == -EACCES) /* If we couldn't acquire the ESP path, log about access errors (which is the only
* error the find_esp_and_warn() won't log on its own) */
- return log_error_errno(r, "Failed to determine ESP: %m");
+ return log_error_errno(r, "Failed to determine ESP location: %m");
if (r < 0)
return r;
- puts(arg_path);
- return 0;
+ puts(arg_esp_path);
+ }
+
+ r = acquire_xbootldr(geteuid() != 0, &xbootldr_uuid);
+ if (arg_print_dollar_boot_path) {
+ if (r == -EACCES)
+ return log_error_errno(r, "Failed to determine XBOOTLDR location: %m");
+ if (r < 0)
+ return r;
+
+ puts(arg_dollar_boot_path());
}
+ if (arg_print_esp_path || arg_print_dollar_boot_path)
+ return 0;
+
r = 0; /* If we couldn't determine the path, then don't consider that a problem from here on, just show what we
* can show */
@@ -1038,8 +1125,8 @@ static int verb_status(int argc, char *argv[], void *userdata) {
} else
printf("System:\n Not booted with EFI\n\n");
- if (arg_path) {
- k = status_binaries(arg_path, uuid);
+ if (arg_esp_path) {
+ k = status_binaries(arg_esp_path, esp_uuid);
if (k < 0)
r = k;
}
@@ -1050,8 +1137,8 @@ static int verb_status(int argc, char *argv[], void *userdata) {
r = k;
}
- if (arg_path) {
- k = status_entries(arg_path, uuid);
+ if (arg_esp_path || arg_xbootldr_path) {
+ k = status_entries(arg_esp_path, arg_xbootldr_path);
if (k < 0)
r = k;
}
@@ -1062,20 +1149,25 @@ static int verb_status(int argc, char *argv[], void *userdata) {
static int verb_list(int argc, char *argv[], void *userdata) {
_cleanup_(boot_config_free) BootConfig config = {};
_cleanup_free_ char **found_by_loader = NULL;
- sd_id128_t uuid = SD_ID128_NULL;
int r;
/* If we lack privileges we invoke find_esp_and_warn() in "unprivileged mode" here, which does two things: turn
* off logging about access errors and turn off potentially privileged device probing. Here we're interested in
* the latter but not the former, hence request the mode, and log about EACCES. */
- r = acquire_esp(geteuid() != 0, NULL, NULL, NULL, &uuid);
+ r = acquire_esp(geteuid() != 0, NULL, NULL, NULL, NULL);
if (r == -EACCES) /* We really need the ESP path for this call, hence also log about access errors */
return log_error_errno(r, "Failed to determine ESP: %m");
if (r < 0)
return r;
- r = boot_entries_load_config(arg_path, NULL, &config);
+ r = acquire_xbootldr(geteuid() != 0, NULL);
+ if (r == -EACCES)
+ return log_error_errno(r, "Failed to determine XBOOTLDR partition: %m");
+ if (r < 0)
+ return r;
+
+ r = boot_entries_load_config(arg_esp_path, arg_xbootldr_path, &config);
if (r < 0)
return r;
@@ -1115,24 +1207,25 @@ static int verb_list(int argc, char *argv[], void *userdata) {
return 0;
}
-static int sync_esp(void) {
- _cleanup_close_ int fd = -1;
-
- if (!arg_path)
- return 0;
+static int sync_everything(void) {
+ int ret = 0, k;
- fd = open(arg_path, O_CLOEXEC|O_DIRECTORY|O_RDONLY);
- if (fd < 0)
- return log_error_errno(errno, "Couldn't open ESP '%s' for synchronization: %m", arg_path);
+ if (arg_esp_path) {
+ k = syncfs_path(AT_FDCWD, arg_esp_path);
+ if (k < 0)
+ ret = log_error_errno(k, "Failed to synchronize the ESP '%s': %m", arg_esp_path);
+ }
- if (syncfs(fd) < 0)
- return log_error_errno(errno, "Failed to synchronize the ESP '%s': %m", arg_path);
+ if (arg_xbootldr_path) {
+ k = syncfs_path(AT_FDCWD, arg_xbootldr_path);
+ if (k < 0)
+ ret = log_error_errno(k, "Failed to synchronize $BOOT '%s': %m", arg_xbootldr_path);
+ }
- return 1;
+ return ret;
}
static int verb_install(int argc, char *argv[], void *userdata) {
-
sd_id128_t uuid = SD_ID128_NULL;
uint64_t pstart = 0, psize = 0;
uint32_t part = 0;
@@ -1143,24 +1236,41 @@ static int verb_install(int argc, char *argv[], void *userdata) {
if (r < 0)
return r;
+ r = acquire_xbootldr(false, NULL);
+ if (r < 0)
+ return r;
+
install = streq(argv[0], "install");
RUN_WITH_UMASK(0002) {
- r = install_binaries(arg_path, install);
+ if (install) {
+ /* 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_esp_subdirs(arg_esp_path);
+ if (r < 0)
+ return r;
+ }
+
+ r = install_binaries(arg_esp_path, install);
if (r < 0)
return r;
if (install) {
- r = install_loader_config(arg_path);
+ r = install_loader_config(arg_esp_path);
+ if (r < 0)
+ return r;
+
+ r = install_entries_directory(arg_dollar_boot_path());
if (r < 0)
return r;
}
}
- (void) sync_esp();
+ (void) sync_everything();
if (arg_touch_variables)
- r = install_variables(arg_path,
+ r = install_variables(arg_esp_path,
part, pstart, psize, uuid,
"/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi",
install);
@@ -1170,21 +1280,35 @@ static int verb_install(int argc, char *argv[], void *userdata) {
static int verb_remove(int argc, char *argv[], void *userdata) {
sd_id128_t uuid = SD_ID128_NULL;
- int r;
+ int r, q;
r = acquire_esp(false, NULL, NULL, NULL, &uuid);
if (r < 0)
return r;
- r = remove_binaries(arg_path);
+ r = acquire_xbootldr(false, NULL);
+ if (r < 0)
+ return r;
- (void) sync_esp();
+ r = remove_binaries(arg_esp_path);
- if (arg_touch_variables) {
- int q;
+ q = remove_loader_config(arg_esp_path);
+ if (q < 0 && r >= 0)
+ r = q;
+
+ q = remove_entries_directory(arg_dollar_boot_path());
+ if (q < 0 && r >= 0)
+ r = q;
+ q = remove_esp_subdirs(arg_esp_path);
+ if (q < 0 && r >= 0)
+ r = q;
+
+ (void) sync_everything();
+
+ if (arg_touch_variables) {
q = remove_variables(uuid, "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", true);
- if (q < 0 && r == 0)
+ if (q < 0 && r >= 0)
r = q;
}