From 3becb99f442630e1f0771a86320dd668e3da03c3 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Mon, 6 Jun 2016 22:48:01 -0400 Subject: stuff --- src/boot/bootctl.c | 1143 ---------------------------------------------------- 1 file changed, 1143 deletions(-) delete mode 100644 src/boot/bootctl.c (limited to 'src/boot/bootctl.c') diff --git a/src/boot/bootctl.c b/src/boot/bootctl.c deleted file mode 100644 index e9baf69f6a..0000000000 --- a/src/boot/bootctl.c +++ /dev/null @@ -1,1143 +0,0 @@ -/*** - This file is part of systemd. - - 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 - 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 . -***/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "alloc-util.h" -#include "blkid-util.h" -#include "dirent-util.h" -#include "efivars.h" -#include "fd-util.h" -#include "fileio.h" -#include "locale-util.h" -#include "rm-rf.h" -#include "string-util.h" -#include "util.h" - -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; - _cleanup_free_ char *t = NULL; - _cleanup_blkid_free_probe_ blkid_probe b = NULL; - int r; - const char *v, *t2; - - if (statfs(p, &sfs) < 0) - return log_error_errno(errno, "Failed to check file system type of \"%s\": %m", p); - - if (sfs.f_type != 0x4d44) { - log_error("File system \"%s\" is not a FAT EFI System Partition (ESP) file system.", p); - return -ENODEV; - } - - if (stat(p, &st) < 0) - return log_error_errno(errno, "Failed to determine block device node of \"%s\": %m", p); - - if (major(st.st_dev) == 0) { - log_error("Block device node of %p is invalid.", p); - return -ENODEV; - } - - t2 = strjoina(p, "/.."); - r = stat(t2, &st2); - if (r < 0) - return log_error_errno(errno, "Failed to determine block device node of parent of \"%s\": %m", p); - - if (st.st_dev == st2.st_dev) { - log_error("Directory \"%s\" is not the root of the EFI System Partition (ESP) file system.", p); - return -ENODEV; - } - - r = asprintf(&t, "/dev/block/%u:%u", major(st.st_dev), minor(st.st_dev)); - if (r < 0) - return log_oom(); - - errno = 0; - b = blkid_new_probe_from_filename(t); - if (!b) { - if (errno == 0) - return log_oom(); - - return log_error_errno(errno, "Failed to open file system \"%s\": %m", p); - } - - 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) { - log_error("File system \"%s\" is ambigious.", p); - return -ENODEV; - } else if (r == 1) { - log_error("File system \"%s\" does not contain a label.", p); - return -ENODEV; - } else if (r != 0) { - r = errno ? -errno : -EIO; - return log_error_errno(r, "Failed to probe file system \"%s\": %m", p); - } - - errno = 0; - r = blkid_probe_lookup_value(b, "TYPE", &v, NULL); - if (r != 0) { - r = errno ? -errno : -EIO; - return log_error_errno(r, "Failed to probe file system type \"%s\": %m", p); - } - - if (!streq(v, "vfat")) { - log_error("File system \"%s\" is not FAT.", p); - return -ENODEV; - } - - errno = 0; - r = blkid_probe_lookup_value(b, "PART_ENTRY_SCHEME", &v, NULL); - if (r != 0) { - r = errno ? -errno : -EIO; - return log_error_errno(r, "Failed to probe partition scheme \"%s\": %m", p); - } - - if (!streq(v, "gpt")) { - log_error("File system \"%s\" is not on a GPT partition table.", p); - return -ENODEV; - } - - errno = 0; - r = blkid_probe_lookup_value(b, "PART_ENTRY_TYPE", &v, NULL); - if (r != 0) { - r = errno ? -errno : -EIO; - return log_error_errno(r, "Failed to probe partition type UUID \"%s\": %m", p); - } - - if (!streq(v, "c12a7328-f81f-11d2-ba4b-00a0c93ec93b")) { - log_error("File system \"%s\" has wrong type for an EFI System Partition (ESP).", p); - return -ENODEV; - } - - errno = 0; - r = blkid_probe_lookup_value(b, "PART_ENTRY_UUID", &v, NULL); - if (r != 0) { - r = errno ? -errno : -EIO; - return log_error_errno(r, "Failed to probe partition entry UUID \"%s\": %m", p); - } - - r = sd_id128_from_string(v, uuid); - if (r < 0) { - log_error("Partition \"%s\" has invalid UUID \"%s\".", p, v); - return -EIO; - } - - errno = 0; - r = blkid_probe_lookup_value(b, "PART_ENTRY_NUMBER", &v, NULL); - if (r != 0) { - r = errno ? -errno : -EIO; - return log_error_errno(r, "Failed to probe partition number \"%s\": m", p); - } - *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; - return log_error_errno(r, "Failed to probe partition offset \"%s\": %m", p); - } - *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; - return log_error_errno(r, "Failed to probe partition size \"%s\": %m", p); - } - *psize = strtoul(v, NULL, 10); - - return 0; -} - -/* search for "#### LoaderInfo: systemd-boot 218 ####" string inside the binary */ -static int get_file_version(int fd, char **v) { - struct stat st; - char *buf; - const char *s, *e; - char *x = NULL; - int r = 0; - - assert(fd >= 0); - assert(v); - - if (fstat(fd, &st) < 0) - return -errno; - - if (st.st_size < 27) - return 0; - - buf = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); - if (buf == MAP_FAILED) - return -errno; - - s = memmem(buf, st.st_size - 8, "#### LoaderInfo: ", 17); - if (!s) - goto finish; - s += 17; - - e = memmem(s, st.st_size - (s - buf), " ####", 5); - if (!e || e - s < 3) { - log_error("Malformed version string."); - r = -EINVAL; - goto finish; - } - - x = strndup(s, e - s); - if (!x) { - r = log_oom(); - goto finish; - } - r = 1; - -finish: - munmap(buf, st.st_size); - *v = x; - return r; -} - -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; - - p = strjoina(esp_path, "/", path); - d = opendir(p); - if (!d) { - if (errno == ENOENT) - return 0; - - return log_error_errno(errno, "Failed to read \"%s\": %m", p); - } - - FOREACH_DIRENT(de, d, break) { - _cleanup_close_ int fd = -1; - _cleanup_free_ char *v = NULL; - - if (!endswith_no_case(de->d_name, ".efi")) - continue; - - if (prefix && !startswith_no_case(de->d_name, prefix)) - continue; - - fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC); - if (fd < 0) - return log_error_errno(errno, "Failed to open \"%s/%s\" for reading: %m", p, de->d_name); - - r = get_file_version(fd, &v); - if (r < 0) - return r; - if (r > 0) - printf(" File: %s/%s/%s (%s)\n", draw_special_char(DRAW_TREE_RIGHT), path, de->d_name, v); - else - printf(" File: %s/%s/%s\n", draw_special_char(DRAW_TREE_RIGHT), path, de->d_name); - c++; - } - - return c; -} - -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) - log_error("systemd-boot not installed in ESP."); - else if (r < 0) - return r; - - r = enumerate_binaries(esp_path, "EFI/Boot", "boot"); - if (r == 0) - log_error("No default/fallback boot loader installed in ESP."); - else if (r < 0) - return r; - - printf("\n"); - - return 0; -} - -static int print_efi_option(uint16_t id, bool in_order) { - _cleanup_free_ char *title = NULL; - _cleanup_free_ 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) - return r; - - /* 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%s\n", draw_special_char(DRAW_TREE_RIGHT), path); - printf("\n"); - - return 0; -} - -static int status_variables(void) { - int n_options, n_order; - _cleanup_free_ uint16_t *options = NULL, *order = NULL; - int i; - - if (!is_efi_boot()) { - log_notice("Not booted with EFI, not showing EFI variables."); - return 0; - } - - n_options = efi_get_boot_options(&options); - if (n_options == -ENOENT) - return log_error_errno(ENOENT, "Failed to access EFI variables, efivarfs" - " needs to be available at /sys/firmware/efi/efivars/."); - else if (n_options < 0) - return log_error_errno(n_options, "Failed to read EFI boot entries: %m"); - - n_order = efi_get_boot_order(&order); - if (n_order == -ENOENT) - n_order = 0; - else if (n_order < 0) - return log_error_errno(n_order, "Failed to read EFI boot order."); - - /* print entries in BootOrder first */ - printf("Boot Loader Entries in EFI Variables:\n"); - 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; - - for (j = 0; j < n_order; j++) - if (options[i] == order[j]) - goto next; - - print_efi_option(options[i], false); - next: - continue; - } - - return 0; -} - -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(int fd, const char *from, const char *to) { - _cleanup_free_ char *a = NULL, *b = NULL; - _cleanup_close_ int fd2 = -1; - int r; - - assert(fd >= 0); - assert(from); - assert(to); - - r = get_file_version(fd, &a); - if (r < 0) - return r; - if (r == 0) { - log_error("Source file \"%s\" does not carry version information!", from); - return -EINVAL; - } - - fd2 = open(to, O_RDONLY|O_CLOEXEC); - if (fd2 < 0) { - if (errno == ENOENT) - return 0; - - return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", to); - } - - r = get_file_version(fd2, &b); - if (r < 0) - return r; - if (r == 0 || compare_product(a, b) != 0) { - log_notice("Skipping \"%s\", since it's owned by another boot loader.", to); - return -EEXIST; - } - - if (compare_version(a, b) < 0) { - log_warning("Skipping \"%s\", since a newer boot loader version exists already.", to); - return -ESTALE; - } - - return 0; -} - -static int copy_file(const char *from, const char *to, bool force) { - _cleanup_fclose_ FILE *f = NULL, *g = NULL; - char *p; - int r; - struct timespec t[2]; - struct stat st; - - assert(from); - assert(to); - - f = fopen(from, "re"); - if (!f) - return log_error_errno(errno, "Failed to open \"%s\" for reading: %m", from); - - if (!force) { - /* If this is an update, then let's compare versions first */ - r = version_check(fileno(f), from, to); - if (r < 0) - return r; - } - - p = strjoina(to, "~"); - g = fopen(p, "wxe"); - if (!g) { - /* Directory doesn't exist yet? Then let's skip this... */ - if (!force && errno == ENOENT) - return 0; - - return log_error_errno(errno, "Failed to open \"%s\" for writing: %m", to); - } - - rewind(f); - do { - size_t k; - uint8_t buf[32*1024]; - - k = fread(buf, 1, sizeof(buf), f); - if (ferror(f)) { - r = log_error_errno(EIO, "Failed to read \"%s\": %m", from); - goto error; - } - - if (k == 0) - break; - - fwrite(buf, 1, k, g); - if (ferror(g)) { - r = log_error_errno(EIO, "Failed to write \"%s\": %m", to); - goto error; - } - } while (!feof(f)); - - r = fflush_and_check(g); - if (r < 0) { - log_error_errno(r, "Failed to write \"%s\": %m", to); - goto error; - } - - r = fstat(fileno(f), &st); - if (r < 0) { - r = log_error_errno(errno, "Failed to get file timestamps of \"%s\": %m", from); - goto error; - } - - t[0] = st.st_atim; - t[1] = st.st_mtim; - - r = futimens(fileno(g), t); - if (r < 0) { - r = log_error_errno(errno, "Failed to set file timestamps on \"%s\": %m", p); - goto error; - } - - if (rename(p, to) < 0) { - r = log_error_errno(errno, "Failed to rename \"%s\" to \"%s\": %m", p, to); - goto error; - } - - log_info("Copied \"%s\" to \"%s\".", from, to); - return 0; - -error: - (void) unlink(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; - - p = strjoina(prefix, "/", suffix); - if (mkdir(p, 0700) < 0) { - if (errno != EEXIST) - return log_error_errno(errno, "Failed to create \"%s\": %m", p); - } else - log_info("Created \"%s\".", p); - - return 0; -} - -static const char *efi_subdirs[] = { - "EFI", - "EFI/systemd", - "EFI/Boot", - "loader", - "loader/entries" -}; - -static int create_dirs(const char *esp_path) { - int r; - unsigned i; - - for (i = 0; i < ELEMENTSOF(efi_subdirs); i++) { - r = mkdir_one(esp_path, efi_subdirs[i]); - if (r < 0) - return r; - } - - return 0; -} - -static int copy_one_file(const char *esp_path, const char *name, bool force) { - char *p, *q; - int r; - - p = strjoina(BOOTLIBDIR "/", name); - q = strjoina(esp_path, "/EFI/systemd/", name); - r = copy_file(p, q, force); - - if (startswith(name, "systemd-boot")) { - int k; - char *v; - - /* Create the EFI default boot loader name (specified for removable devices) */ - v = strjoina(esp_path, "/EFI/Boot/BOOT", name + strlen("systemd-boot")); - strupper(strrchr(v, '/') + 1); - - k = copy_file(p, v, force); - if (k < 0 && r == 0) - r = k; - } - - return r; -} - -static int install_binaries(const char *esp_path, bool force) { - struct dirent *de; - _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"); - - FOREACH_DIRENT(de, d, break) { - int k; - - if (!endswith_no_case(de->d_name, ".efi")) - continue; - - k = copy_one_file(esp_path, de->d_name, force); - if (k < 0 && r == 0) - r = k; - } - - return r; -} - -static bool same_entry(uint16_t id, const sd_id128_t uuid, const char *path) { - _cleanup_free_ char *opath = NULL; - sd_id128_t ouuid; - int r; - - r = efi_get_boot_option(id, NULL, &ouuid, &opath, NULL); - if (r < 0) - return false; - if (!sd_id128_equal(uuid, ouuid)) - return false; - if (!streq_ptr(path, opath)) - return false; - - return true; -} - -static int find_slot(sd_id128_t uuid, const char *path, uint16_t *id) { - _cleanup_free_ uint16_t *options = NULL; - int n, i; - - n = efi_get_boot_options(&options); - if (n < 0) - return n; - - /* find already existing systemd-boot entry */ - for (i = 0; i < n; i++) - if (same_entry(options[i], uuid, path)) { - *id = options[i]; - return 1; - } - - /* find free slot in the sorted BootXXXX variable list */ - for (i = 0; i < n; i++) - if (i != options[i]) { - *id = i; - return 1; - } - - /* use the next one */ - if (i == 0xffff) - return -ENOSPC; - *id = i; - return 0; -} - -static int insert_into_order(uint16_t slot, bool first) { - _cleanup_free_ uint16_t *order = NULL; - uint16_t *t; - int n, i; - - n = efi_get_boot_order(&order); - if (n <= 0) - /* no entry, add us */ - return efi_set_boot_order(&slot, 1); - - /* are we the first and only one? */ - if (n == 1 && order[0] == slot) - return 0; - - /* are we already in the boot order? */ - for (i = 0; i < n; i++) { - if (order[i] != slot) - continue; - - /* we do not require to be the first one, all is fine */ - if (!first) - return 0; - - /* move us to the first slot */ - memmove(order + 1, order, i * sizeof(uint16_t)); - order[0] = slot; - return efi_set_boot_order(order, n); - } - - /* extend array */ - t = realloc(order, (n + 1) * sizeof(uint16_t)); - if (!t) - return -ENOMEM; - order = t; - - /* add us to the top or end of the list */ - if (first) { - memmove(order + 1, order, n * sizeof(uint16_t)); - order[0] = slot; - } else - order[n] = slot; - - return efi_set_boot_order(order, n + 1); -} - -static int remove_from_order(uint16_t slot) { - _cleanup_free_ uint16_t *order = NULL; - int n, i; - - n = efi_get_boot_order(&order); - if (n <= 0) - return n; - - for (i = 0; i < n; i++) { - if (order[i] != slot) - continue; - - if (i + 1 < n) - memmove(order + i, order + i+1, (n - i) * sizeof(uint16_t)); - return efi_set_boot_order(order, n - 1); - } - - return 0; -} - -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; - uint16_t slot; - int r; - - if (!is_efi_boot()) { - log_warning("Not booted with EFI, skipping EFI variable setup."); - return 0; - } - - p = strjoina(esp_path, path); - if (access(p, F_OK) < 0) { - if (errno == ENOENT) - return 0; - else - return log_error_errno(errno, "Cannot access \"%s\": %m", p); - } - - r = find_slot(uuid, path, &slot); - if (r < 0) - return log_error_errno(r, - r == -ENOENT ? - "Failed to access EFI variables. Is the \"efivarfs\" filesystem mounted?" : - "Failed to determine current boot order: %m"); - - if (first || r == false) { - r = efi_add_boot_option(slot, "Linux Boot Manager", - part, pstart, psize, - uuid, path); - if (r < 0) - return log_error_errno(r, "Failed to create EFI Boot variable entry: %m"); - - log_info("Created EFI boot entry \"Linux Boot Manager\"."); - } - - return insert_into_order(slot, first); -} - -static int remove_boot_efi(const char *esp_path) { - char *p; - _cleanup_closedir_ DIR *d = NULL; - struct dirent *de; - int r, c = 0; - - p = strjoina(esp_path, "/EFI/Boot"); - d = opendir(p); - if (!d) { - if (errno == ENOENT) - return 0; - - return log_error_errno(errno, "Failed to open directory \"%s\": %m", p); - } - - FOREACH_DIRENT(de, d, break) { - _cleanup_close_ int fd = -1; - _cleanup_free_ char *v = NULL; - - if (!endswith_no_case(de->d_name, ".efi")) - continue; - - if (!startswith_no_case(de->d_name, "Boot")) - continue; - - fd = openat(dirfd(d), de->d_name, O_RDONLY|O_CLOEXEC); - if (fd < 0) - return log_error_errno(errno, "Failed to open \"%s/%s\" for reading: %m", p, de->d_name); - - r = get_file_version(fd, &v); - if (r < 0) - return r; - if (r > 0 && startswith(v, "systemd-boot ")) { - r = unlinkat(dirfd(d), de->d_name, 0); - if (r < 0) - return log_error_errno(errno, "Failed to remove \"%s/%s\": %m", p, de->d_name); - - log_info("Removed \"%s/%s\".", p, de->d_name); - } - - c++; - } - - return c; -} - -static int rmdir_one(const char *prefix, const char *suffix) { - char *p; - - 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); - } else - log_info("Removed \"%s\".", p); - - return 0; -} - -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); - - q = remove_boot_efi(esp_path); - if (q < 0 && r == 0) - r = q; - - for (i = ELEMENTSOF(efi_subdirs); i > 0; i--) { - q = rmdir_one(esp_path, efi_subdirs[i-1]); - 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) - return remove_from_order(slot); - else - return 0; -} - -static int install_loader_config(const char *esp_path) { - char *p; - char line[64]; - char *machine = NULL; - _cleanup_fclose_ FILE *f = NULL, *g = NULL; - - f = fopen("/etc/machine-id", "re"); - if (!f) - return errno == ENOENT ? 0 : -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; - } - - if (!machine) - return -ESRCH; - - p = strjoina(esp_path, "/loader/loader.conf"); - g = fopen(p, "wxe"); - if (g) { - fprintf(g, "#timeout 3\n"); - fprintf(g, "default %s-*\n", machine); - if (ferror(g)) - return log_error_errno(EIO, "Failed to write \"%s\": %m", p); - } - - return 0; -} - -static int help(void) { - 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" - " --no-variables Don't touch EFI variables\n" - "\n" - "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", - program_invocation_short_name); - - return 0; -} - -static const char *arg_path = "/boot"; -static bool arg_touch_variables = true; - -static int parse_argv(int argc, char *argv[]) { - enum { - ARG_PATH = 0x100, - ARG_VERSION, - ARG_NO_VARIABLES, - }; - - 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); - - while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) - switch (c) { - - case 'h': - help(); - return 0; - - case ARG_VERSION: - return version(); - - case ARG_PATH: - arg_path = optarg; - break; - - case ARG_NO_VARIABLES: - arg_touch_variables = false; - break; - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unknown option"); - } - - return 1; -} - -static void read_loader_efi_var(const char *name, char **var) { - int r; - - r = efi_get_variable_string(EFI_VENDOR_LOADER, name, var); - if (r < 0 && r != -ENOENT) - log_warning_errno(r, "Failed to read EFI variable %s: %m", name); -} - -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, psize = 0; - int r, q; - - if (argv[optind]) { - unsigned i; - - 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)) { - log_error("Unknown operation \"%s\"", argv[optind]); - return -EINVAL; - } - } - - if (geteuid() != 0) - return log_error_errno(EPERM, "Need to be root."); - - r = verify_esp(arg_path, &part, &pstart, &psize, &uuid); - if (r == -ENODEV && !arg_path) - log_notice("You might want to use --path= to indicate the path to your ESP, in case it is not mounted on /boot."); - if (r < 0) - return r; - - 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 = {}; - - if (is_efi_boot()) { - read_loader_efi_var("LoaderFirmwareType", &fw_type); - read_loader_efi_var("LoaderFirmwareInfo", &fw_info); - read_loader_efi_var("LoaderInfo", &loader); - read_loader_efi_var("LoaderImageIdentifier", &loader_path); - if (loader_path) - efi_tilt_backslashes(loader_path); - r = efi_loader_get_device_part_uuid(&loader_part_uuid); - if (r < 0 && r == -ENOENT) - log_warning_errno(r, "Failed to read EFI variable LoaderDevicePartUUID: %m"); - - printf("System:\n"); - printf(" Firmware: %s (%s)\n", strna(fw_type), strna(fw_info)); - - r = is_efi_secure_boot(); - if (r < 0) - log_warning_errno(r, "Failed to query secure boot status: %m"); - else - printf(" Secure Boot: %s\n", r ? "enabled" : "disabled"); - - r = is_efi_secure_boot_setup_mode(); - if (r < 0) - log_warning_errno(r, "Failed to query secure boot mode: %m"); - else - printf(" Setup Mode: %s\n", r ? "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"); - } else - printf("System:\n Not booted with EFI\n"); - - r = status_binaries(arg_path, uuid); - if (r < 0) - return r; - - if (arg_touch_variables) - r = status_variables(); - break; - } - - case ACTION_INSTALL: - case ACTION_UPDATE: - umask(0002); - - r = install_binaries(arg_path, arg_action == ACTION_INSTALL); - if (r < 0) - return r; - - if (arg_action == ACTION_INSTALL) { - r = install_loader_config(arg_path); - if (r < 0) - return r; - } - - if (arg_touch_variables) - r = install_variables(arg_path, - part, pstart, psize, uuid, - "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", - arg_action == ACTION_INSTALL); - break; - - case ACTION_REMOVE: - r = remove_binaries(arg_path); - - if (arg_touch_variables) { - q = remove_variables(uuid, "/EFI/systemd/systemd-boot" EFI_MACHINE_TYPE_NAME ".efi", true); - if (q < 0 && r == 0) - r = q; - } - break; - } - - return r; -} - -int main(int argc, char *argv[]) { - int r; - - log_parse_environment(); - log_open(); - - r = parse_argv(argc, argv); - if (r <= 0) - goto finish; - - r = bootctl_main(argc, argv); - - finish: - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} -- cgit v1.2.3-54-g00ecf