1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 typedef struct ExecStatus ExecStatus;
26 typedef struct ExecCommand ExecCommand;
27 typedef struct ExecContext ExecContext;
30 #include <sys/resource.h>
31 #include <sys/capability.h>
41 /* Abstract namespace! */
42 #define LOGGER_SOCKET "/org/freedesktop/systemd1/logger"
44 /* This doesn't really belong here, but I couldn't find a better place to put this. */
45 #define SIGNALS_CRASH_HANDLER SIGSEGV,SIGILL,SIGFPE,SIGBUS,SIGQUIT,SIGABRT
46 #define SIGNALS_IGNORE SIGKILL,SIGPIPE
48 typedef enum ExecInput {
55 _EXEC_INPUT_INVALID = -1
58 typedef enum ExecOutput {
66 _EXEC_OUTPUT_INVALID = -1
70 usec_t start_timestamp;
71 usec_t exit_timestamp;
73 int code; /* as in siginfo_t::si_code */
74 int status; /* as in sigingo_t::si_status */
80 ExecStatus exec_status;
81 LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
86 struct rlimit *rlimit[RLIMIT_NLIMITS];
87 char *working_directory, *root_directory;
94 int cpu_sched_priority;
96 cpu_set_t cpu_affinity;
97 unsigned long timer_slack_ns;
100 ExecOutput std_output;
101 ExecOutput std_error;
104 char *syslog_identifier;
105 bool syslog_no_prefix;
109 /* Since resolving these names might might involve socket
110 * connections and we don't want to deadlock ourselves these
111 * names are resolved on execution only and in the child
115 char **supplementary_groups;
117 char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
118 unsigned long mount_flags;
120 uint64_t capability_bounding_set_drop;
125 bool cpu_sched_reset_on_fork;
129 bool oom_adjust_set:1;
132 bool cpu_sched_set:1;
133 bool cpu_affinity_set:1;
134 bool timer_slack_ns_set:1;
136 /* This is not exposed to the user but available
137 * internally. We need it to make sure that whenever we spawn
138 * /bin/mount it is run in the same process group as us so
139 * that the autofs logic detects that it belongs to us and we
140 * don't enter a trigger loop. */
144 typedef enum ExitStatus {
145 /* EXIT_SUCCESS defined by libc */
146 /* EXIT_FAILURE defined by libc */
147 EXIT_INVALIDARGUMENT = 2,
148 EXIT_NOTIMPLEMENTED = 3,
149 EXIT_NOPERMISSION = 4,
150 EXIT_NOTINSTALLED = 5,
151 EXIT_NOTCONFIGURED = 6,
154 /* The LSB suggests that error codes >= 200 are "reserved". We
155 * use them here under the assumption that they hence are
156 * unused by init scripts.
158 * http://refspecs.freestandards.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html */
170 EXIT_CHROOT, /* 210 */
180 EXIT_SETSID, /* 220 */
186 int exec_spawn(ExecCommand *command,
188 const ExecContext *context,
189 int fds[], unsigned n_fds,
191 bool apply_permissions,
194 struct CGroupBonding *cgroup_bondings,
197 void exec_command_done(ExecCommand *c);
198 void exec_command_done_array(ExecCommand *c, unsigned n);
200 void exec_command_free_list(ExecCommand *c);
201 void exec_command_free_array(ExecCommand **c, unsigned n);
203 char *exec_command_line(char **argv);
205 void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
206 void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
207 void exec_command_append_list(ExecCommand **l, ExecCommand *e);
208 int exec_command_set(ExecCommand *c, const char *path, ...);
210 void exec_context_init(ExecContext *c);
211 void exec_context_done(ExecContext *c);
212 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
214 void exec_status_fill(ExecStatus *s, pid_t pid, int code, int status);
215 void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
217 const char* exec_output_to_string(ExecOutput i);
218 int exec_output_from_string(const char *s);
220 const char* exec_input_to_string(ExecInput i);
221 int exec_input_from_string(const char *s);
223 const char* exit_status_to_string(ExitStatus status);