X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=execute.h;h=655f1e4f7b4aec9a66446a5e90c089d863ac7e25;hp=552e4a9e636f08f8d2d9d4ee47ae6915fc6dd37e;hb=c9106f61d0755dc6b8aa7c4252baa140c2d473f1;hpb=9152c765065184d0c1267ed2499e3fe4cac53755

diff --git a/execute.h b/execute.h
index 552e4a9e6..655f1e4f7 100644
--- a/execute.h
+++ b/execute.h
@@ -3,6 +3,25 @@
 #ifndef fooexecutehfoo
 #define fooexecutehfoo
 
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
 typedef struct ExecStatus ExecStatus;
 typedef struct ExecCommand ExecCommand;
 typedef struct ExecContext ExecContext;
@@ -12,12 +31,41 @@ typedef struct ExecContext ExecContext;
 #include <sys/capability.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <sched.h>
+
+struct CGroupBonding;
 
 #include "list.h"
+#include "util.h"
+
+/* Abstract namespace! */
+#define LOGGER_SOCKET "/org/freedesktop/systemd1/logger"
+
+typedef enum ExecInput {
+        EXEC_INPUT_NULL,
+        EXEC_INPUT_TTY,
+        EXEC_INPUT_TTY_FORCE,
+        EXEC_INPUT_TTY_FAIL,
+        EXEC_INPUT_SOCKET,
+        _EXEC_INPUT_MAX,
+        _EXEC_INPUT_INVALID = -1
+} ExecInput;
+
+typedef enum ExecOutput {
+        EXEC_OUTPUT_INHERIT,
+        EXEC_OUTPUT_NULL,
+        EXEC_OUTPUT_TTY,
+        EXEC_OUTPUT_SYSLOG,
+        EXEC_OUTPUT_KERNEL,
+        EXEC_OUTPUT_SOCKET,
+        _EXEC_OUTPUT_MAX,
+        _EXEC_OUTPUT_INVALID = -1
+} ExecOutput;
 
 struct ExecStatus {
         pid_t pid;
-        time_t timestamp;
+        usec_t start_timestamp;
+        usec_t exit_timestamp;
         int code;     /* as in siginfo_t::si_code */
         int status;   /* as in sigingo_t::si_status */
 };
@@ -25,36 +73,140 @@ struct ExecStatus {
 struct ExecCommand {
         char *path;
         char **argv;
-        ExecStatus last_exec_status;
-        LIST_FIELDS(ExecCommand);
+        ExecStatus exec_status;
+        LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
 };
 
 struct ExecContext {
         char **environment;
         mode_t umask;
         struct rlimit *rlimit[RLIMIT_NLIMITS];
-        cap_t capabilities;
-        bool capabilities_set:1;
-        bool dumpable:1;
+        char *working_directory, *root_directory;
         int oom_adjust;
         int nice;
-        char *chdir;
+        int ioprio;
+        int cpu_sched_policy;
+        int cpu_sched_priority;
+        cpu_set_t cpu_affinity;
+        unsigned long timer_slack_ns;
+
+        bool oom_adjust_set:1;
+        bool nice_set:1;
+        bool ioprio_set:1;
+        bool cpu_sched_set:1;
+        bool cpu_affinity_set:1;
+        bool timer_slack_ns_set:1;
+
+        /* This is not exposed to the user but available
+         * internally. We need it to make sure that whenever we spawn
+         * /bin/mount it is run in the same process group as us so
+         * that the autofs logic detects that it belongs to us and we
+         * don't enter a trigger loop. */
+        bool no_setsid:1;
+
+        bool cpu_sched_reset_on_fork;
+        bool non_blocking;
+
+        ExecInput std_input;
+        ExecOutput std_output;
+        ExecOutput std_error;
 
-        /* since resolving these names might might involve socket
+        char *tty_path;
+
+        int syslog_priority;
+        char *syslog_identifier;
+
+        cap_t capabilities;
+        int secure_bits;
+        uint64_t capability_bounding_set_drop;
+
+        /* Since resolving these names might might involve socket
          * connections and we don't want to deadlock ourselves these
-         * names are resolved on execution only. */
+         * names are resolved on execution only and in the child
+         * process. */
         char *user;
         char *group;
         char **supplementary_groups;
 };
 
-int exec_spawn(const ExecCommand *command, const ExecContext *context, pid_t *ret);
+typedef enum ExitStatus {
+        /* EXIT_SUCCESS defined by libc */
+        /* EXIT_FAILURE defined by libc */
+        EXIT_INVALIDARGUMENT = 2,
+        EXIT_NOTIMPLEMENTED = 3,
+        EXIT_NOPERMISSION = 4,
+        EXIT_NOTINSTALLED = 5,
+        EXIT_NOTCONFIGURED = 6,
+        EXIT_NOTRUNNING = 7,
+
+        /* The LSB suggests that error codes >= 200 are "reserved". We
+         * use them here under the assumption that they hence are
+         * unused by init scripts.
+         *
+         * http://refspecs.freestandards.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html */
+
+        EXIT_CHDIR = 200,
+        EXIT_NICE,
+        EXIT_FDS,
+        EXIT_EXEC,
+        EXIT_MEMORY,
+        EXIT_LIMITS,
+        EXIT_OOM_ADJUST,
+        EXIT_SIGNAL_MASK,
+        EXIT_STDIN,
+        EXIT_STDOUT,
+        EXIT_CHROOT,   /* 210 */
+        EXIT_IOPRIO,
+        EXIT_TIMERSLACK,
+        EXIT_SECUREBITS,
+        EXIT_SETSCHEDULER,
+        EXIT_CPUAFFINITY,
+        EXIT_GROUP,
+        EXIT_USER,
+        EXIT_CAPABILITIES,
+        EXIT_CGROUP,
+        EXIT_SETSID,   /* 220 */
+        EXIT_CONFIRM,
+        EXIT_STDERR
+
+} ExitStatus;
+
+int exec_spawn(ExecCommand *command,
+               char **argv,
+               const ExecContext *context,
+               int fds[], unsigned n_fds,
+               bool apply_permissions,
+               bool apply_chroot,
+               bool confirm_spawn,
+               struct CGroupBonding *cgroup_bondings,
+               pid_t *ret);
+
+void exec_command_done(ExecCommand *c);
+void exec_command_done_array(ExecCommand *c, unsigned n);
 
-void exec_context_free(ExecContext *c);
 void exec_command_free_list(ExecCommand *c);
+void exec_command_free_array(ExecCommand **c, unsigned n);
+
+char *exec_command_line(char **argv);
+
+void exec_command_dump(ExecCommand *c, FILE *f, const char *prefix);
+void exec_command_dump_list(ExecCommand *c, FILE *f, const char *prefix);
+void exec_command_append_list(ExecCommand **l, ExecCommand *e);
+int exec_command_set(ExecCommand *c, const char *path, ...);
 
+void exec_context_init(ExecContext *c);
+void exec_context_done(ExecContext *c);
 void exec_context_dump(ExecContext *c, FILE* f, const char *prefix);
 
-void exec_context_defaults(ExecContext *c);
+void exec_status_fill(ExecStatus *s, pid_t pid, int code, int status);
+void exec_status_dump(ExecStatus *s, FILE *f, const char *prefix);
+
+const char* exec_output_to_string(ExecOutput i);
+int exec_output_from_string(const char *s);
+
+const char* exec_input_to_string(ExecInput i);
+int exec_input_from_string(const char *s);
+
+const char* exit_status_to_string(ExitStatus status);
 
 #endif