Fork of Original Code Base: anongit.freedesktop.org/systemd

This is the initial fork of the code base from freedsktop.org.
The code is provided here as a reference of the initial starting
point and for possible future checkouts after a large portion
of this code is removed.

Merge git://anongit.freedesktop.org/systemd/systemd

1 files changed, 209 insertions, 0 deletions

diff --git a/src/core/execute.h b/src/core/execute.h
new file mode 100644
index 0000000000..2bcd2e1e6c
--- /dev/null
+++ b/src/core/execute.h
@@ -0,0 +1,209 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+  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 Lesser General Public License as published by
+  the Free Software Foundation; either version 2.1 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser 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;
+
+#include <linux/types.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/capability.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sched.h>
+
+struct CGroupBonding;
+struct CGroupAttribute;
+
+#include "list.h"
+#include "util.h"
+
+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_SYSLOG_AND_CONSOLE,
+        EXEC_OUTPUT_KMSG,
+        EXEC_OUTPUT_KMSG_AND_CONSOLE,
+        EXEC_OUTPUT_JOURNAL,
+        EXEC_OUTPUT_JOURNAL_AND_CONSOLE,
+        EXEC_OUTPUT_SOCKET,
+        _EXEC_OUTPUT_MAX,
+        _EXEC_OUTPUT_INVALID = -1
+} ExecOutput;
+
+struct ExecStatus {
+        dual_timestamp start_timestamp;
+        dual_timestamp exit_timestamp;
+        pid_t pid;
+        int code;     /* as in siginfo_t::si_code */
+        int status;   /* as in sigingo_t::si_status */
+};
+
+struct ExecCommand {
+        char *path;
+        char **argv;
+        ExecStatus exec_status;
+        LIST_FIELDS(ExecCommand, command); /* useful for chaining commands */
+        bool ignore;
+};
+
+struct ExecContext {
+        char **environment;
+        char **environment_files;
+
+        struct rlimit *rlimit[RLIMIT_NLIMITS];
+        char *working_directory, *root_directory;
+
+        mode_t umask;
+        int oom_score_adjust;
+        int nice;
+        int ioprio;
+        int cpu_sched_policy;
+        int cpu_sched_priority;
+
+        cpu_set_t *cpuset;
+        unsigned cpuset_ncpus;
+
+        ExecInput std_input;
+        ExecOutput std_output;
+        ExecOutput std_error;
+
+        nsec_t timer_slack_nsec;
+
+        char *tcpwrap_name;
+
+        char *tty_path;
+
+        bool tty_reset;
+        bool tty_vhangup;
+        bool tty_vt_disallocate;
+
+        bool ignore_sigpipe;
+
+        /* Since resolving these names might might involve socket
+         * connections and we don't want to deadlock ourselves these
+         * names are resolved on execution only and in the child
+         * process. */
+        char *user;
+        char *group;
+        char **supplementary_groups;
+
+        char *pam_name;
+
+        char *utmp_id;
+
+        char **read_write_dirs, **read_only_dirs, **inaccessible_dirs;
+        unsigned long mount_flags;
+
+        uint64_t capability_bounding_set_drop;
+
+        cap_t capabilities;
+        int secure_bits;
+
+        int syslog_priority;
+        char *syslog_identifier;
+        bool syslog_level_prefix;
+
+        bool cpu_sched_reset_on_fork;
+        bool non_blocking;
+        bool private_tmp;
+        bool private_network;
+
+        bool no_new_privileges;
+
+        bool control_group_modify;
+        int control_group_persistent;
+
+        /* 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 same_pgrp;
+
+        uint32_t *syscall_filter;
+
+        bool oom_score_adjust_set:1;
+        bool nice_set:1;
+        bool ioprio_set:1;
+        bool cpu_sched_set:1;
+};
+
+int exec_spawn(ExecCommand *command,
+               char **argv,
+               const ExecContext *context,
+               int fds[], unsigned n_fds,
+               char **environment,
+               bool apply_permissions,
+               bool apply_chroot,
+               bool apply_tty_stdin,
+               bool confirm_spawn,
+               struct CGroupBonding *cgroup_bondings,
+               struct CGroupAttribute *cgroup_attributes,
+               const char *cgroup_suffix,
+               const char *unit_id,
+               int pipe_fd[2],
+               pid_t *ret);
+
+void exec_command_done(ExecCommand *c);
+void exec_command_done_array(ExecCommand *c, unsigned n);
+
+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_tty_reset(const ExecContext *context);
+
+int exec_context_load_environment(const ExecContext *c, char ***l);
+
+void exec_status_start(ExecStatus *s, pid_t pid);
+void exec_status_exit(ExecStatus *s, ExecContext *context, 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);
+ExecOutput exec_output_from_string(const char *s);
+
+const char* exec_input_to_string(ExecInput i);
+ExecInput exec_input_from_string(const char *s);