diff options
| -rw-r--r-- | src/core/namespace.c | 46 |
1 files changed, 34 insertions, 12 deletions
diff --git a/src/core/namespace.c b/src/core/namespace.c index 13f6aeba51..8aa8b83c88 100644 --- a/src/core/namespace.c +++ b/src/core/namespace.c @@ -515,6 +515,32 @@ static int chase_all_symlinks(const char *root_directory, BindMount *m, unsigned return 0; } +static unsigned namespace_calculate_mounts( + char** read_write_paths, + char** read_only_paths, + char** inaccessible_paths, + const char* tmp_dir, + const char* var_tmp_dir, + bool private_dev, + bool protect_sysctl, + bool protect_cgroups, + ProtectHome protect_home, + ProtectSystem protect_system) { + + return !!tmp_dir + !!var_tmp_dir + + strv_length(read_write_paths) + + strv_length(read_only_paths) + + strv_length(inaccessible_paths) + + private_dev + + (protect_sysctl ? ELEMENTSOF(protect_kernel_tunables_table) : 0) + + (protect_cgroups ? 1 : 0) + + (protect_home != PROTECT_HOME_NO || protect_system == PROTECT_SYSTEM_STRICT ? 3 : 0) + + (protect_system == PROTECT_SYSTEM_STRICT ? + (2 + !private_dev + !protect_sysctl) : + ((protect_system != PROTECT_SYSTEM_NO ? 3 : 0) + + (protect_system == PROTECT_SYSTEM_FULL ? 1 : 0))); +} + int setup_namespace( const char* root_directory, char** read_write_paths, @@ -537,19 +563,15 @@ int setup_namespace( if (mount_flags == 0) mount_flags = MS_SHARED; - n = !!tmp_dir + !!var_tmp_dir + - strv_length(read_write_paths) + - strv_length(read_only_paths) + - strv_length(inaccessible_paths) + - private_dev + - (protect_sysctl ? ELEMENTSOF(protect_kernel_tunables_table) : 0) + - (protect_cgroups ? 1 : 0) + - (protect_home != PROTECT_HOME_NO || protect_system == PROTECT_SYSTEM_STRICT ? 3 : 0) + - (protect_system == PROTECT_SYSTEM_STRICT ? - (2 + !private_dev + !protect_sysctl) : - ((protect_system != PROTECT_SYSTEM_NO ? 3 : 0) + - (protect_system == PROTECT_SYSTEM_FULL ? 1 : 0))); + n = namespace_calculate_mounts(read_write_paths, + read_only_paths, + inaccessible_paths, + tmp_dir, var_tmp_dir, + private_dev, protect_sysctl, + protect_cgroups, protect_home, + protect_system); + /* Set mount slave mode */ if (root_directory || n > 0) make_slave = true; |