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>
41 typedef enum ExecInput {
48 _EXEC_INPUT_INVALID = -1
51 typedef enum ExecOutput {
56 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
58 EXEC_OUTPUT_KMSG_AND_CONSOLE,
60 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
63 _EXEC_OUTPUT_INVALID = -1
67 dual_timestamp start_timestamp;
68 dual_timestamp exit_timestamp;
70 int code; /* as in siginfo_t::si_code */
71 int status; /* as in sigingo_t::si_status */
77 ExecStatus exec_status;
78 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
88 int netns_storage_socket[2];
93 char **environment_files;
95 struct rlimit *rlimit[RLIMIT_NLIMITS];
96 char *working_directory, *root_directory;
102 int cpu_sched_policy;
103 int cpu_sched_priority;
106 unsigned cpuset_ncpus;
109 ExecOutput std_output;
110 ExecOutput std_error;
112 nsec_t timer_slack_nsec;
120 bool tty_vt_disallocate;
124 /* Since resolving these names might might involve socket
125 * connections and we don't want to deadlock ourselves these
126 * names are resolved on execution only and in the child
130 char **supplementary_groups;
136 char *selinux_context;
138 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
139 unsigned long mount_flags;
141 uint64_t capability_bounding_set_drop;
147 char *syslog_identifier;
148 bool syslog_level_prefix;
150 bool cpu_sched_reset_on_fork;
153 bool private_network;
154 bool private_devices;
156 bool no_new_privileges;
158 /* This is not exposed to the user but available
159 * internally. We need it to make sure that whenever we spawn
160 * /bin/mount it is run in the same process group as us so
161 * that the autofs logic detects that it belongs to us and we
162 * don't enter a trigger loop. */
165 uint32_t *syscall_filter;
167 bool oom_score_adjust_set:1;
170 bool cpu_sched_set:1;
175 int exec_spawn(ExecCommand *command,
177 ExecContext *context,
178 int fds[], unsigned n_fds,
180 bool apply_permissions,
182 bool apply_tty_stdin,
184 CGroupControllerMask cgroup_mask,
185 const char *cgroup_path,
187 usec_t watchdog_usec,
189 ExecRuntime *runtime,
192 void exec_command_done(ExecCommand *c);
193 void exec_command_done_array(ExecCommand *c, unsigned n);
195 void exec_command_free_list(ExecCommand *c);
196 void exec_command_free_array(ExecCommand **c, unsigned n);
198 char *exec_command_line(char **argv);
200 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
201 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
202 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
203 int exec_command_set(ExecCommand *c, const char *path, ...);
205 void exec_context_init(ExecContext *c);
206 void exec_context_done(ExecContext *c);
207 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
209 int exec_context_load_environment(const ExecContext *c, char ***l);
211 bool exec_context_may_touch_console(ExecContext *c);
213 void exec_status_start(ExecStatus *s, pid_t pid);
214 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
215 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
217 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
218 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
219 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
221 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
222 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
224 void exec_runtime_destroy(ExecRuntime *rt);
226 const char* exec_output_to_string(ExecOutput i) _const_;
227 ExecOutput exec_output_from_string(const char *s) _pure_;
229 const char* exec_input_to_string(ExecInput i) _const_;
230 ExecInput exec_input_from_string(const char *s) _pure_;