#include "sd-messages.h"
#include "ioprio.h"
#include "securebits.h"
-#include "cgroup.h"
#include "namespace.h"
#include "tcpwrap.h"
#include "exit-status.h"
#include "syscall-list.h"
#include "env-util.h"
#include "fileio.h"
+#include "unit.h"
+#include "async.h"
#define IDLE_TIMEOUT_USEC (5*USEC_PER_SEC)
+#define IDLE_TIMEOUT2_USEC (1*USEC_PER_SEC)
/* This assumes there is a 'tty' group */
#define TTY_MODE 0620
return 0;
}
+static void do_idle_pipe_dance(int idle_pipe[4]) {
+ assert(idle_pipe);
+
+ if (idle_pipe[1] >= 0)
+ close_nointr_nofail(idle_pipe[1]);
+ if (idle_pipe[2] >= 0)
+ close_nointr_nofail(idle_pipe[2]);
+
+ if (idle_pipe[0] >= 0) {
+ int r;
+
+ r = fd_wait_for_event(idle_pipe[0], POLLHUP, IDLE_TIMEOUT_USEC);
+
+ if (idle_pipe[3] >= 0 && r == 0 /* timeout */) {
+ /* Signal systemd that we are bored and want to continue. */
+ write(idle_pipe[3], "x", 1);
+
+ /* Wait for systemd to react to the signal above. */
+ fd_wait_for_event(idle_pipe[0], POLLHUP, IDLE_TIMEOUT2_USEC);
+ }
+
+ close_nointr_nofail(idle_pipe[0]);
+
+ }
+
+ if (idle_pipe[3] >= 0)
+ close_nointr_nofail(idle_pipe[3]);
+}
+
int exec_spawn(ExecCommand *command,
char **argv,
ExecContext *context,
bool apply_chroot,
bool apply_tty_stdin,
bool confirm_spawn,
- CGroupBonding *cgroup_bondings,
- CGroupAttribute *cgroup_attributes,
- const char *cgroup_suffix,
+ CGroupControllerMask cgroup_supported,
+ const char *cgroup_path,
const char *unit_id,
- int idle_pipe[2],
+ int idle_pipe[4],
pid_t *ret) {
+ _cleanup_strv_free_ char **files_env = NULL;
+ int socket_fd;
+ char *line;
pid_t pid;
int r;
- char *line;
- int socket_fd;
- _cleanup_strv_free_ char **files_env = NULL;
assert(command);
assert(context);
NULL);
free(line);
- r = cgroup_bonding_realize_list(cgroup_bondings);
- if (r < 0)
- return r;
-
- /* We must initialize the attributes in the parent, before we
- fork, because we really need them initialized before making
- the process a member of the group (which we do in both the
- child and the parent), and we cannot really apply them twice
- (due to 'append' style attributes) */
- cgroup_attribute_apply_list(cgroup_attributes, cgroup_bondings);
-
if (context->private_tmp && !context->tmp_dir && !context->var_tmp_dir) {
r = setup_tmpdirs(&context->tmp_dir, &context->var_tmp_dir);
if (r < 0)
_cleanup_strv_free_ char **our_env = NULL, **pam_env = NULL,
**final_env = NULL, **final_argv = NULL;
unsigned n_env = 0;
- bool set_access = false;
/* child */
goto fail_child;
}
- if (idle_pipe) {
- if (idle_pipe[1] >= 0)
- close_nointr_nofail(idle_pipe[1]);
- if (idle_pipe[0] >= 0) {
- fd_wait_for_event(idle_pipe[0], POLLHUP, IDLE_TIMEOUT_USEC);
- close_nointr_nofail(idle_pipe[0]);
- }
- }
+ if (idle_pipe)
+ do_idle_pipe_dance(idle_pipe);
/* Close sockets very early to make sure we don't
* block init reexecution because it cannot bind its
goto fail_child;
}
- if (cgroup_bondings) {
- err = cgroup_bonding_install_list(cgroup_bondings, 0, cgroup_suffix);
+ if (cgroup_path) {
+ err = cg_attach_everywhere(cgroup_supported, cgroup_path, 0);
if (err < 0) {
r = EXIT_CGROUP;
goto fail_child;
goto fail_child;
}
}
+ }
- if (cgroup_bondings && context->control_group_modify) {
- err = cgroup_bonding_set_group_access_list(cgroup_bondings, 0755, uid, gid);
- if (err >= 0)
- err = cgroup_bonding_set_task_access_list(
- cgroup_bondings,
- 0644,
- uid,
- gid,
- context->control_group_persistent);
- if (err < 0) {
- r = EXIT_CGROUP;
- goto fail_child;
- }
-
- set_access = true;
+#ifdef HAVE_PAM
+ if (cgroup_path && context->user && context->pam_name) {
+ err = cg_set_task_access(SYSTEMD_CGROUP_CONTROLLER, cgroup_path, 0644, uid, gid);
+ if (err < 0) {
+ r = EXIT_CGROUP;
+ goto fail_child;
}
- }
- if (cgroup_bondings && !set_access && context->control_group_persistent >= 0) {
- err = cgroup_bonding_set_task_access_list(
- cgroup_bondings,
- (mode_t) -1,
- (uid_t) -1,
- (uid_t) -1,
- context->control_group_persistent);
+
+ err = cg_set_group_access(SYSTEMD_CGROUP_CONTROLLER, cgroup_path, 0755, uid, gid);
if (err < 0) {
r = EXIT_CGROUP;
goto fail_child;
}
}
+#endif
if (apply_permissions) {
err = enforce_groups(context, username, gid);
* outside of the cgroup) and in the parent (so that we can be
* sure that when we kill the cgroup the process will be
* killed too). */
- cgroup_bonding_install_list(cgroup_bondings, pid, cgroup_suffix);
+ if (cgroup_path)
+ cg_attach(SYSTEMD_CGROUP_CONTROLLER, cgroup_path, pid);
exec_status_start(&command->exec_status, pid);
c->cpu_sched_policy = SCHED_OTHER;
c->syslog_priority = LOG_DAEMON|LOG_INFO;
c->syslog_level_prefix = true;
- c->control_group_persistent = -1;
c->ignore_sigpipe = true;
c->timer_slack_nsec = (nsec_t) -1;
}
+static void *remove_tmpdir_thread(void *p) {
+ int r;
+ _cleanup_free_ char *dirp = p;
+ char *dir;
+
+ assert(dirp);
+
+ r = rm_rf_dangerous(dirp, false, true, false);
+ dir = dirname(dirp);
+ if (r < 0)
+ log_warning("Failed to remove content of temporary directory %s: %s",
+ dir, strerror(-r));
+ else {
+ r = rmdir(dir);
+ if (r < 0)
+ log_warning("Failed to remove temporary directory %s: %s",
+ dir, strerror(-r));
+ }
+
+ return NULL;
+}
+
void exec_context_tmp_dirs_done(ExecContext *c) {
char* dirs[] = {c->tmp_dir ? c->tmp_dir : c->var_tmp_dir,
c->tmp_dir ? c->var_tmp_dir : NULL,
char **dirp;
for(dirp = dirs; *dirp; dirp++) {
- char *dir;
- int r;
-
- r = rm_rf_dangerous(*dirp, false, true, false);
- dir = dirname(*dirp);
- if (r < 0)
- log_warning("Failed to remove content of temporary directory %s: %s",
- dir, strerror(-r));
- else {
- r = rmdir(dir);
- if (r < 0)
- log_warning("Failed to remove temporary directory %s: %s",
- dir, strerror(-r));
- }
-
- free(*dirp);
+ log_debug("Spawning thread to nuke %s", *dirp);
+ asynchronous_job(remove_tmpdir_thread, *dirp);
}
c->tmp_dir = c->var_tmp_dir = NULL;
strv_free(r);
return k;
- }
+ }
/* Log invalid environment variables with filename */
- if (p)
- p = strv_env_clean_log(p, pglob.gl_pathv[n]);
+ if (p)
+ p = strv_env_clean_log(p, pglob.gl_pathv[n]);
if (r == NULL)
r = p;
}
void exec_context_dump(ExecContext *c, FILE* f, const char *prefix) {
- char ** e;
+ char **e;
unsigned i;
assert(c);
assert(f);
- if (!prefix)
- prefix = "";
+ prefix = strempty(prefix);
fprintf(f,
"%sUMask: %04o\n"
"%sRootDirectory: %s\n"
"%sNonBlocking: %s\n"
"%sPrivateTmp: %s\n"
- "%sControlGroupModify: %s\n"
- "%sControlGroupPersistent: %s\n"
"%sPrivateNetwork: %s\n"
"%sIgnoreSIGPIPE: %s\n",
prefix, c->umask,
prefix, c->root_directory ? c->root_directory : "/",
prefix, yes_no(c->non_blocking),
prefix, yes_no(c->private_tmp),
- prefix, yes_no(c->control_group_modify),
- prefix, yes_no(c->control_group_persistent),
prefix, yes_no(c->private_network),
prefix, yes_no(c->ignore_sigpipe));
~ianmdlvl / elogind.git / blobdiff