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 **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
137 unsigned long mount_flags;
139 uint64_t capability_bounding_set_drop;
145 char *syslog_identifier;
146 bool syslog_level_prefix;
148 bool cpu_sched_reset_on_fork;
151 bool private_network;
153 bool no_new_privileges;
155 /* This is not exposed to the user but available
156 * internally. We need it to make sure that whenever we spawn
157 * /bin/mount it is run in the same process group as us so
158 * that the autofs logic detects that it belongs to us and we
159 * don't enter a trigger loop. */
162 uint32_t *syscall_filter;
164 bool oom_score_adjust_set:1;
167 bool cpu_sched_set:1;
172 int exec_spawn(ExecCommand *command,
174 ExecContext *context,
175 int fds[], unsigned n_fds,
177 bool apply_permissions,
179 bool apply_tty_stdin,
181 CGroupControllerMask cgroup_mask,
182 const char *cgroup_path,
185 ExecRuntime *runtime,
188 void exec_command_done(ExecCommand *c);
189 void exec_command_done_array(ExecCommand *c, unsigned n);
191 void exec_command_free_list(ExecCommand *c);
192 void exec_command_free_array(ExecCommand **c, unsigned n);
194 char *exec_command_line(char **argv);
196 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
197 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
198 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
199 int exec_command_set(ExecCommand *c, const char *path, ...);
201 void exec_context_init(ExecContext *c);
202 void exec_context_done(ExecContext *c);
203 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
205 int exec_context_load_environment(const ExecContext *c, char ***l);
207 bool exec_context_may_touch_console(ExecContext *c);
209 void exec_status_start(ExecStatus *s, pid_t pid);
210 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
211 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
213 int exec_runtime_make(ExecRuntime **rt, ExecContext *c, const char *id);
214 ExecRuntime *exec_runtime_ref(ExecRuntime *r);
215 ExecRuntime *exec_runtime_unref(ExecRuntime *r);
217 int exec_runtime_serialize(ExecRuntime *rt, Unit *u, FILE *f, FDSet *fds);
218 int exec_runtime_deserialize_item(ExecRuntime **rt, Unit *u, const char *key, const char *value, FDSet *fds);
220 void exec_runtime_destroy(ExecRuntime *rt);
222 const char* exec_output_to_string(ExecOutput i) _const_;
223 ExecOutput exec_output_from_string(const char *s) _pure_;
225 const char* exec_input_to_string(ExecInput i) _const_;
226 ExecInput exec_input_from_string(const char *s) _pure_;