File mount-efivars.patch of Package systemd
From f271dd97622b656c1c013d181ea615c671cc2438 Mon Sep 17 00:00:00 2001
From: "Lee, Chun-Yi" <joeyli.kernel@gmail.com>
Date: Sat, 27 Oct 2012 11:23:22 +0800
Subject: [PATCH] systemd: mount the EFI variable filesystem
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Add efivarfs to the mount_table in mount-setup.c, so the EFI variable
filesystem will be mounted when systemd executed.
The EFI variable filesystem will merge in v3.7 or v3.8 linux kernel.
Cc: Kay Sievers <kay@vrfy.org>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Mantas Mikulėnas <grawity@gmail.com>
Cc: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Jeremy Kerr <jeremy.kerr@canonical.com>
Cc: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
---
src/core/kmod-setup.c | 7 ++++---
src/core/mount-setup.c | 1 +
2 files changed, 5 insertions(+), 3 deletions(-)
Index: systemd-195/src/core/kmod-setup.c
===================================================================
--- systemd-195.orig/src/core/kmod-setup.c
+++ systemd-195/src/core/kmod-setup.c
@@ -30,10 +30,16 @@
#include "kmod-setup.h"
-static const char * const kmod_table[] = {
- "autofs4", "/sys/class/misc/autofs",
- "ipv6", "/sys/module/ipv6",
- "unix", "/proc/net/unix"
+typedef struct Kmodule {
+ const char *name;
+ const char *directory;
+ bool (*condition_fn)(void);
+} KModule;
+
+static const KModule kmod_table[] = {
+ { "autofs4", "/sys/class/misc/autofs", NULL } ,
+ { "ipv6", "/sys/module/ipv6", NULL },
+ { "unix", "/proc/net/unix", NULL } ,
};
#pragma GCC diagnostic push
@@ -41,7 +47,8 @@ static const char * const kmod_table[] =
static void systemd_kmod_log(void *data, int priority, const char *file, int line,
const char *fn, const char *format, va_list args)
{
- log_metav(priority, file, line, fn, format, args);
+ /* library logging is enabled at debug only */
+ log_metav(LOG_DEBUG, file, line, fn, format, args);
}
#pragma GCC diagnostic pop
@@ -52,13 +59,15 @@ int kmod_setup(void) {
int err;
for (i = 0; i < ELEMENTSOF(kmod_table); i += 2) {
+ if (kmod_table[i].condition_fn && !kmod_table[i].condition_fn())
+ continue;
- if (access(kmod_table[i+1], F_OK) >= 0)
+ if (access(kmod_table[i].directory, F_OK) >= 0)
continue;
log_debug("Your kernel apparently lacks built-in %s support. Might be a good idea to compile it in. "
"We'll now try to work around this by loading the module...",
- kmod_table[i]);
+ kmod_table[i].name);
if (!ctx) {
ctx = kmod_new(NULL, NULL);
@@ -68,13 +77,12 @@ int kmod_setup(void) {
}
kmod_set_log_fn(ctx, systemd_kmod_log, NULL);
-
kmod_load_resources(ctx);
}
- err = kmod_module_new_from_name(ctx, kmod_table[i], &mod);
+ err = kmod_module_new_from_name(ctx, kmod_table[i].name, &mod);
if (err < 0) {
- log_error("Failed to load module '%s'", kmod_table[i]);
+ log_error("Failed to lookup module '%s'", kmod_table[i].name);
continue;
}
@@ -84,7 +92,7 @@ int kmod_setup(void) {
else if (err == KMOD_PROBE_APPLY_BLACKLIST)
log_info("Module '%s' is blacklisted", kmod_module_get_name(mod));
else
- log_error("Failed to insert '%s'", kmod_module_get_name(mod));
+ log_error("Failed to insert module '%s'", kmod_module_get_name(mod));
kmod_module_unref(mod);
}
Index: systemd-195/src/core/mount-setup.c
===================================================================
--- systemd-195.orig/src/core/mount-setup.c
+++ systemd-195/src/core/mount-setup.c
@@ -46,14 +46,20 @@
#define TTY_GID 5
#endif
+typedef enum MountMode {
+ MNT_NONE = 0,
+ MNT_FATAL = 1 << 0,
+ MNT_IN_CONTAINER = 1 << 1,
+} MountMode;
+
typedef struct MountPoint {
const char *what;
const char *where;
const char *type;
const char *options;
unsigned long flags;
- bool fatal;
- bool in_container;
+ bool (*condition_fn)(void);
+ MountMode mode;
} MountPoint;
/* The first three entries we might need before SELinux is up. The
@@ -62,15 +68,26 @@ typedef struct MountPoint {
#define N_EARLY_MOUNT 4
static const MountPoint mount_table[] = {
- { "proc", "/proc", "proc", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, true, true },
- { "sysfs", "/sys", "sysfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, true, true },
- { "devtmpfs", "/dev", "devtmpfs", "mode=755", MS_NOSUID|MS_STRICTATIME, true, true },
- { "securityfs", "/sys/kernel/security", "securityfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV, false, false },
- { "tmpfs", "/dev/shm", "tmpfs", "mode=1777", MS_NOSUID|MS_NODEV|MS_STRICTATIME, true, true },
- { "devpts", "/dev/pts", "devpts", "mode=620,gid=" STRINGIFY(TTY_GID), MS_NOSUID|MS_NOEXEC, false, true },
- { "tmpfs", "/run", "tmpfs", "mode=755", MS_NOSUID|MS_NODEV|MS_STRICTATIME, true, true },
- { "tmpfs", "/sys/fs/cgroup", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_STRICTATIME, false, true },
- { "cgroup", "/sys/fs/cgroup/systemd", "cgroup", "none,name=systemd", MS_NOSUID|MS_NOEXEC|MS_NODEV, false, true },
+ { "proc", "/proc", "proc", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
+ { "sysfs", "/sys", "sysfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
+ { "devtmpfs", "/dev", "devtmpfs", "mode=755", MS_NOSUID|MS_STRICTATIME,
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
+ { "securityfs", "/sys/kernel/security", "securityfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
+ NULL, MNT_NONE },
+ { "efivarfs", "/sys/firmware/efi/efivars", "efivarfs", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
+ is_efiboot, MNT_NONE },
+ { "tmpfs", "/dev/shm", "tmpfs", "mode=1777", MS_NOSUID|MS_NODEV|MS_STRICTATIME,
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
+ { "devpts", "/dev/pts", "devpts", "mode=620,gid=" STRINGIFY(TTY_GID), MS_NOSUID|MS_NOEXEC,
+ NULL, MNT_IN_CONTAINER },
+ { "tmpfs", "/run", "tmpfs", "mode=755", MS_NOSUID|MS_NODEV|MS_STRICTATIME,
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
+ { "tmpfs", "/sys/fs/cgroup", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_STRICTATIME,
+ NULL, MNT_IN_CONTAINER },
+ { "cgroup", "/sys/fs/cgroup/systemd", "cgroup", "none,name=systemd", MS_NOSUID|MS_NOEXEC|MS_NODEV,
+ NULL, MNT_IN_CONTAINER },
};
/* These are API file systems that might be mounted by other software,
@@ -118,6 +135,9 @@ static int mount_one(const MountPoint *p
assert(p);
+ if (p->condition_fn && !p->condition_fn())
+ return 0;
+
/* Relabel first, just in case */
if (relabel)
label_fix(p->where, true, true);
@@ -130,7 +150,7 @@ static int mount_one(const MountPoint *p
return 0;
/* Skip securityfs in a container */
- if (!p->in_container && detect_container(NULL) > 0)
+ if (!(p->mode & MNT_IN_CONTAINER) && detect_container(NULL) > 0)
return 0;
/* The access mode here doesn't really matter too much, since
@@ -148,8 +168,8 @@ static int mount_one(const MountPoint *p
p->type,
p->flags,
p->options) < 0) {
- log_full(p->fatal ? LOG_ERR : LOG_DEBUG, "Failed to mount %s: %s", p->where, strerror(errno));
- return p->fatal ? -errno : 0;
+ log_full((p->mode & MNT_FATAL) ? LOG_ERR : LOG_DEBUG, "Failed to mount %s: %s", p->where, strerror(errno));
+ return (p->mode & MNT_FATAL) ? -errno : 0;
}
/* Relabel again, since we now mounted something fresh here */
@@ -288,7 +308,6 @@ int mount_cgroup_controllers(char ***joi
p.type = "cgroup";
p.options = options;
p.flags = MS_NOSUID|MS_NOEXEC|MS_NODEV;
- p.fatal = false;
r = mount_one(&p, true);
free(controller);
Index: systemd-195/src/shared/util.c
===================================================================
--- systemd-195.orig/src/shared/util.c
+++ systemd-195/src/shared/util.c
@@ -75,6 +75,10 @@ char **saved_argv = NULL;
static volatile unsigned cached_columns = 0;
static volatile unsigned cached_lines = 0;
+bool is_efiboot(void) {
+ return access("/sys/firmware/efi", F_OK) >= 0;
+}
+
size_t page_size(void) {
static __thread size_t pgsz = 0;
long r;
Index: systemd-195/src/shared/util.h
===================================================================
--- systemd-195.orig/src/shared/util.h
+++ systemd-195/src/shared/util.h
@@ -90,6 +90,8 @@ union dirent_storage {
#define ANSI_HIGHLIGHT_YELLOW_ON "\x1B[1;33m"
#define ANSI_HIGHLIGHT_OFF "\x1B[0m"
+bool is_efiboot(void);
+
usec_t now(clockid_t clock);
dual_timestamp* dual_timestamp_get(dual_timestamp *ts);
