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>
37 struct CGroupAttribute;
42 typedef enum ExecInput {
49 _EXEC_INPUT_INVALID = -1
52 typedef enum ExecOutput {
57 EXEC_OUTPUT_SYSLOG_AND_CONSOLE,
59 EXEC_OUTPUT_KMSG_AND_CONSOLE,
61 EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
64 _EXEC_OUTPUT_INVALID = -1
68 dual_timestamp start_timestamp;
69 dual_timestamp exit_timestamp;
71 int code; /* as in siginfo_t::si_code */
72 int status; /* as in sigingo_t::si_status */
78 ExecStatus exec_status;
79 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
85 char **environment_files;
87 struct rlimit *rlimit[RLIMIT_NLIMITS];
88 char *working_directory, *root_directory;
95 int cpu_sched_priority;
98 unsigned cpuset_ncpus;
101 ExecOutput std_output;
102 ExecOutput std_error;
104 nsec_t timer_slack_nsec;
112 bool tty_vt_disallocate;
116 /* Since resolving these names might might involve socket
117 * connections and we don't want to deadlock ourselves these
118 * names are resolved on execution only and in the child
122 char **supplementary_groups;
128 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
129 unsigned long mount_flags;
131 uint64_t capability_bounding_set_drop;
137 char *syslog_identifier;
138 bool syslog_level_prefix;
140 bool cpu_sched_reset_on_fork;
143 bool private_network;
145 bool no_new_privileges;
147 bool control_group_modify;
148 int control_group_persistent;
150 /* This is not exposed to the user but available
151 * internally. We need it to make sure that whenever we spawn
152 * /bin/mount it is run in the same process group as us so
153 * that the autofs logic detects that it belongs to us and we
154 * don't enter a trigger loop. */
157 uint32_t *syscall_filter;
159 bool oom_score_adjust_set:1;
162 bool cpu_sched_set:1;
165 int exec_spawn(ExecCommand *command,
167 const ExecContext *context,
168 int fds[], unsigned n_fds,
170 bool apply_permissions,
172 bool apply_tty_stdin,
174 struct CGroupBonding *cgroup_bondings,
175 struct CGroupAttribute *cgroup_attributes,
176 const char *cgroup_suffix,
181 void exec_command_done(ExecCommand *c);
182 void exec_command_done_array(ExecCommand *c, unsigned n);
184 void exec_command_free_list(ExecCommand *c);
185 void exec_command_free_array(ExecCommand **c, unsigned n);
187 char *exec_command_line(char **argv);
189 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
190 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
191 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
192 int exec_command_set(ExecCommand *c, const char *path, ...);
194 void exec_context_init(ExecContext *c);
195 void exec_context_done(ExecContext *c);
196 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
197 void exec_context_tty_reset(const ExecContext *context);
199 int exec_context_load_environment(const ExecContext *c, char ***l);
201 void exec_status_start(ExecStatus *s, pid_t pid);
202 void exec_status_exit(ExecStatus *s, ExecContext *context, pid_t pid, int code, int status);
203 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
205 const char* exec_output_to_string(ExecOutput i);
206 ExecOutput exec_output_from_string(const char *s);
208 const char* exec_input_to_string(ExecInput i);
209 ExecInput exec_input_from_string(const char *s);