1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 typedef struct ExecStatus ExecStatus;
25 typedef struct ExecCommand ExecCommand;
26 typedef struct ExecContext ExecContext;
27 typedef struct ExecRuntime ExecRuntime;
29 #include <linux/types.h>
31 #include <sys/resource.h>
32 #include <sys/capability.h>
46 typedef enum ExecInput {
53 _EXEC_INPUT_INVALID = -1
56 typedef enum ExecOutput {
61 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
63 EXEC_OUTPUT_KMSG_AND_CONSOLE,
65 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
68 _EXEC_OUTPUT_INVALID = -1
72 dual_timestamp start_timestamp;
73 dual_timestamp exit_timestamp;
75 int code; /* as in siginfo_t::si_code */
76 int status; /* as in sigingo_t::si_status */
82 ExecStatus exec_status;
83 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
93 int netns_storage_socket[2];
98 char **environment_files;
100 struct rlimit *rlimit[RLIMIT_NLIMITS];
101 char *working_directory, *root_directory;
104 int oom_score_adjust;
107 int cpu_sched_policy;
108 int cpu_sched_priority;
111 unsigned cpuset_ncpus;
114 ExecOutput std_output;
115 ExecOutput std_error;
117 nsec_t timer_slack_nsec;
125 bool tty_vt_disallocate;
129 /* Since resolving these names might might involve socket
130 * connections and we don't want to deadlock ourselves these
131 * names are resolved on execution only and in the child
135 char **supplementary_groups;
141 char *selinux_context;
143 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
144 unsigned long mount_flags;
146 uint64_t capability_bounding_set_drop;
152 char *syslog_identifier;
153 bool syslog_level_prefix;
155 bool cpu_sched_reset_on_fork;
158 bool private_network;
159 bool private_devices;
161 bool no_new_privileges;
163 /* This is not exposed to the user but available
164 * internally. We need it to make sure that whenever we spawn
165 * /bin/mount it is run in the same process group as us so
166 * that the autofs logic detects that it belongs to us and we
167 * don't enter a trigger loop. */
171 scmp_filter_ctx syscall_filter;
172 Set *filtered_syscalls;
173 uint32_t syscall_filter_default_action;
175 char *syscall_filter_string;
177 bool oom_score_adjust_set:1;
180 bool cpu_sched_set:1;
185 int exec_spawn(ExecCommand *command,
187 ExecContext *context,
188 int fds[], unsigned n_fds,
190 bool apply_permissions,
192 bool apply_tty_stdin,
194 CGroupControllerMask cgroup_mask,
195 const char *cgroup_path,
197 usec_t watchdog_usec,
199 ExecRuntime *runtime,
202 void exec_command_done(ExecCommand *c);
203 void exec_command_done_array(ExecCommand *c, unsigned n);
205 void exec_command_free_list(ExecCommand *c);
206 void exec_command_free_array(ExecCommand **c, unsigned n);
208 char *exec_command_line(char **argv);
210 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
211 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
212 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
213 int exec_command_set(ExecCommand *c, const char *path, ...);
215 void exec_context_init(ExecContext *c);
216 void exec_context_done(ExecContext *c);
217 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
219 int exec_context_load_environment(const ExecContext *c, char ***l);
221 bool exec_context_may_touch_console(ExecContext *c);
223 void exec_status_start(ExecStatus *s, pid_t pid);
224 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
225 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
227 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
228 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
229 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
231 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
232 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
234 void exec_runtime_destroy(ExecRuntime *rt);
236 const char* exec_output_to_string(ExecOutput i) _const_;
237 ExecOutput exec_output_from_string(const char *s) _pure_;
239 const char* exec_input_to_string(ExecInput i) _const_;
240 ExecInput exec_input_from_string(const char *s) _pure_;