mount-setup: mount /dev/pts with mode=620,gid=5 by default and make GID overridable...

[elogind.git] / src / mount-setup.c

diff --git a/src/mount-setup.c b/src/mount-setup.c
index 14ac18125fe9f621b837ab2f7891822b6995db86..64fb4765f613d9929e956e753673ca813544a28c 100644 (file)
--- a/src/mount-setup.c
+++ b/src/mount-setup.c
@@ -35,6 +35,10 @@
 #include "util.h"
 #include "label.h"
 
+#ifndef TTY_GID
+#define TTY_GID 5
+#endif
+
 typedef struct MountPoint {
         const char *what;
         const char *where;
@@ -48,14 +52,14 @@ static const MountPoint mount_table[] = {
         { "proc",     "/proc",                  "proc",     NULL,                MS_NOSUID|MS_NOEXEC|MS_NODEV, true },
         { "sysfs",    "/sys",                   "sysfs",    NULL,                MS_NOSUID|MS_NOEXEC|MS_NODEV, true },
         { "devtmpfs", "/dev",                   "devtmpfs", "mode=755",          MS_NOSUID,                    true },
-        { "tmpfs",    "/dev/shm",               "tmpfs",    "mode=1777",         MS_NOSUID|MS_NOEXEC|MS_NODEV, true },
-        { "devpts",   "/dev/pts",               "devpts",   NULL,                MS_NOSUID|MS_NOEXEC,          false },
+        { "tmpfs",    "/dev/shm",               "tmpfs",    "mode=1777",         MS_NOSUID|MS_NODEV,           true },
+        { "devpts",   "/dev/pts",               "devpts",   "mode=620,gid=" STRINGIFY(TTY_GID), MS_NOSUID|MS_NOEXEC, false },
         { "tmpfs",    "/sys/fs/cgroup",         "tmpfs",    "mode=755",          MS_NOSUID|MS_NOEXEC|MS_NODEV, true },
         { "cgroup",   "/sys/fs/cgroup/systemd", "cgroup",   "none,name=systemd", MS_NOSUID|MS_NOEXEC|MS_NODEV, true },
 };
 
 /* These are API file systems that might be mounted by other software,
- * we just list them here so that we know that we should igore them */
+ * we just list them here so that we know that we should ignore them */
 
 static const char * const ignore_paths[] = {
         "/selinux",
@@ -78,7 +82,7 @@ bool mount_point_is_api(const char *path) {
 }
 
 bool mount_point_ignore(const char *path) {
-       unsigned i;
+        unsigned i;
 
         for (i = 0; i < ELEMENTSOF(ignore_paths); i++)
                 if (path_equal(path, ignore_paths[i]))
@@ -138,8 +142,9 @@ static int mount_cgroup_controllers(void) {
         for (;;) {
                 MountPoint p;
                 char *controller, *where;
+                int enabled = false;
 
-                if (fscanf(f, "%ms %*i %*i %*i", &controller) != 1) {
+                if (fscanf(f, "%ms %*i %*i %i", &controller, &enabled) != 2) {
 
                         if (feof(f))
                                 break;
@@ -149,6 +154,11 @@ static int mount_cgroup_controllers(void) {
                         goto finish;
                 }
 
+                if (!enabled) {
+                        free(controller);
+                        continue;
+                }
+
                 if (asprintf(&where, "/sys/fs/cgroup/%s", controller) < 0) {
                         free(controller);
                         r = -ENOMEM;