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;
28 #include <linux/types.h>
30 #include <sys/resource.h>
31 #include <sys/capability.h>
39 typedef struct Unit Unit;
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 */
84 char **environment_files;
86 struct rlimit *rlimit[RLIMIT_NLIMITS];
87 char *working_directory, *root_directory;
94 int cpu_sched_priority;
97 unsigned cpuset_ncpus;
100 ExecOutput std_output;
101 ExecOutput std_error;
103 nsec_t timer_slack_nsec;
111 bool tty_vt_disallocate;
115 /* Since resolving these names might might involve socket
116 * connections and we don't want to deadlock ourselves these
117 * names are resolved on execution only and in the child
121 char **supplementary_groups;
127 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
128 unsigned long mount_flags;
130 uint64_t capability_bounding_set_drop;
136 char *syslog_identifier;
137 bool syslog_level_prefix;
139 bool cpu_sched_reset_on_fork;
142 bool private_network;
146 bool no_new_privileges;
148 /* This is not exposed to the user but available
149 * internally. We need it to make sure that whenever we spawn
150 * /bin/mount it is run in the same process group as us so
151 * that the autofs logic detects that it belongs to us and we
152 * don't enter a trigger loop. */
155 uint32_t *syscall_filter;
157 bool oom_score_adjust_set:1;
160 bool cpu_sched_set:1;
165 int exec_spawn(ExecCommand *command,
167 ExecContext *context,
168 int fds[], unsigned n_fds,
170 bool apply_permissions,
172 bool apply_tty_stdin,
174 CGroupControllerMask cgroup_mask,
175 const char *cgroup_path,
180 void exec_command_done(ExecCommand *c);
181 void exec_command_done_array(ExecCommand *c, unsigned n);
183 void exec_command_free_list(ExecCommand *c);
184 void exec_command_free_array(ExecCommand **c, unsigned n);
186 char *exec_command_line(char **argv);
188 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
189 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
190 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
191 int exec_command_set(ExecCommand *c, const char *path, ...);
193 void exec_context_init(ExecContext *c);
194 void exec_context_done(ExecContext *c, bool reloading_or_reexecuting);
195 void exec_context_tmp_dirs_done(ExecContext *c);
196 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
198 int exec_context_load_environment(const ExecContext *c, char ***l);
200 bool exec_context_may_touch_console(ExecContext *c);
201 void exec_context_serialize(const ExecContext *c, Unit *u, FILE *f);
203 void exec_status_start(ExecStatus *s, pid_t pid);
204 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
205 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
207 const char* exec_output_to_string(ExecOutput i) _const_;
208 ExecOutput exec_output_from_string(const char *s) _pure_;
210 const char* exec_input_to_string(ExecInput i) _const_;
211 ExecInput exec_input_from_string(const char *s) _pure_;