mirror of
https://github.com/systemd/systemd.git
synced 2024-12-02 23:03:50 +08:00
bus-proxy: bring back systemd-stdio-bridge
Now that we want to make bus-proxy multi-threaded, we have to bring back the systemd-stdio-bridge for our TCP use-cases.
This commit is contained in:
David Herrmann
parent
c0395aeb90
commit
f299e3e430
1
.gitignore
vendored
1
.gitignore
vendored
@ -116,6 +116,7 @@
|
||||
/systemd-shutdownd
|
||||
/systemd-sleep
|
||||
/systemd-socket-proxyd
|
||||
/systemd-stdio-bridge
|
||||
/systemd-subterm
|
||||
/systemd-sysctl
|
||||
/systemd-system-update-generator
|
||||
|
||||
35
Makefile.am
35
Makefile.am
@ -391,6 +391,7 @@ rootlibexec_PROGRAMS = \
|
||||
systemd-sysctl \
|
||||
systemd-sleep \
|
||||
systemd-bus-proxyd \
|
||||
systemd-stdio-bridge \
|
||||
systemd-socket-proxyd \
|
||||
systemd-update-done
|
||||
|
||||
@ -2023,11 +2024,10 @@ test_conf_files_LDADD = \
|
||||
libsystemd-shared.la
|
||||
|
||||
test_bus_policy_SOURCES = \
|
||||
src/bus-proxyd/test-bus-xml-policy.c \
|
||||
src/bus-proxyd/bus-xml-policy.c \
|
||||
src/bus-proxyd/bus-xml-policy.h
|
||||
src/bus-proxyd/test-bus-xml-policy.c
|
||||
|
||||
test_bus_policy_LDADD = \
|
||||
libsystemd-proxy.la \
|
||||
libsystemd-internal.la \
|
||||
libsystemd-shared.la
|
||||
|
||||
@ -2679,8 +2679,10 @@ systemd_run_LDADD = \
|
||||
libsystemd-shared.la
|
||||
|
||||
# ------------------------------------------------------------------------------
|
||||
systemd_bus_proxyd_SOURCES = \
|
||||
src/bus-proxyd/bus-proxyd.c \
|
||||
noinst_LTLIBRARIES += \
|
||||
libsystemd-proxy.la
|
||||
|
||||
libsystemd_proxy_la_SOURCES = \
|
||||
src/bus-proxyd/bus-xml-policy.c \
|
||||
src/bus-proxyd/bus-xml-policy.h \
|
||||
src/bus-proxyd/driver.c \
|
||||
@ -2690,20 +2692,25 @@ systemd_bus_proxyd_SOURCES = \
|
||||
src/bus-proxyd/synthesize.c \
|
||||
src/bus-proxyd/synthesize.h
|
||||
|
||||
systemd_bus_proxyd_LDADD = \
|
||||
libsystemd_proxy_la_LIBADD = \
|
||||
libsystemd-internal.la \
|
||||
libsystemd-shared.la
|
||||
|
||||
bus-proxyd-install-hook:
|
||||
$(AM_V_at)$(MKDIR_P) $(DESTDIR)$(bindir)
|
||||
$(AM_V_RM)rm -f $(DESTDIR)$(bindir)/systemd-stdio-bridge
|
||||
$(AM_V_LN)$(LN_S) --relative -f $(DESTDIR)$(rootlibexecdir)/systemd-bus-proxyd $(DESTDIR)$(bindir)/systemd-stdio-bridge
|
||||
systemd_bus_proxyd_SOURCES = \
|
||||
src/bus-proxyd/bus-proxyd.c
|
||||
|
||||
bus-proxyd-uninstall-hook:
|
||||
rm -f $(DESTDIR)$(bindir)/systemd-stdio-bridge
|
||||
systemd_bus_proxyd_LDADD = \
|
||||
libsystemd-proxy.la \
|
||||
libsystemd-internal.la \
|
||||
libsystemd-shared.la
|
||||
|
||||
INSTALL_EXEC_HOOKS += bus-proxyd-install-hook
|
||||
UNINSTALL_EXEC_HOOKS += bus-proxyd-uninstall-hook
|
||||
systemd_stdio_bridge_SOURCES = \
|
||||
src/bus-proxyd/stdio-bridge.c
|
||||
|
||||
systemd_stdio_bridge_LDADD = \
|
||||
libsystemd-proxy.la \
|
||||
libsystemd-internal.la \
|
||||
libsystemd-shared.la
|
||||
|
||||
if ENABLE_KDBUS
|
||||
nodist_systemunit_DATA += \
|
||||
|
||||
282
src/bus-proxyd/stdio-bridge.c
Normal file
282
src/bus-proxyd/stdio-bridge.c
Normal file
@ -0,0 +1,282 @@
|
||||
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||||
|
||||
/***
|
||||
This file is part of systemd.
|
||||
|
||||
Copyright 2010 Lennart Poettering
|
||||
Copyright 2013 Daniel Mack
|
||||
Copyright 2014 Kay Sievers
|
||||
|
||||
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/>.
|
||||
***/
|
||||
|
||||
#include <sys/socket.h>
|
||||
#include <sys/un.h>
|
||||
#include <sys/types.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <sys/poll.h>
|
||||
#include <stddef.h>
|
||||
#include <getopt.h>
|
||||
|
||||
#include "log.h"
|
||||
#include "util.h"
|
||||
#include "socket-util.h"
|
||||
#include "sd-daemon.h"
|
||||
#include "sd-bus.h"
|
||||
#include "bus-internal.h"
|
||||
#include "bus-message.h"
|
||||
#include "bus-util.h"
|
||||
#include "build.h"
|
||||
#include "strv.h"
|
||||
#include "def.h"
|
||||
#include "capability.h"
|
||||
#include "bus-control.h"
|
||||
#include "smack-util.h"
|
||||
#include "set.h"
|
||||
#include "bus-xml-policy.h"
|
||||
#include "driver.h"
|
||||
#include "proxy.h"
|
||||
#include "synthesize.h"
|
||||
|
||||
static char *arg_address = NULL;
|
||||
static char *arg_command_line_buffer = NULL;
|
||||
static char **arg_configuration = NULL;
|
||||
|
||||
static int help(void) {
|
||||
|
||||
printf("%s [OPTIONS...]\n\n"
|
||||
"Connect STDIO to a given bus address.\n\n"
|
||||
" -h --help Show this help\n"
|
||||
" --version Show package version\n"
|
||||
" --configuration=PATH Configuration file or directory\n"
|
||||
" --machine=MACHINE Connect to specified machine\n"
|
||||
" --address=ADDRESS Connect to the bus specified by ADDRESS\n"
|
||||
" (default: " DEFAULT_SYSTEM_BUS_ADDRESS ")\n",
|
||||
program_invocation_short_name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int parse_argv(int argc, char *argv[]) {
|
||||
|
||||
enum {
|
||||
ARG_VERSION = 0x100,
|
||||
ARG_ADDRESS,
|
||||
ARG_CONFIGURATION,
|
||||
ARG_MACHINE,
|
||||
};
|
||||
|
||||
static const struct option options[] = {
|
||||
{ "help", no_argument, NULL, 'h' },
|
||||
{ "version", no_argument, NULL, ARG_VERSION },
|
||||
{ "address", required_argument, NULL, ARG_ADDRESS },
|
||||
{ "configuration", required_argument, NULL, ARG_CONFIGURATION },
|
||||
{ "machine", required_argument, NULL, ARG_MACHINE },
|
||||
{},
|
||||
};
|
||||
|
||||
int c, r;
|
||||
|
||||
assert(argc >= 0);
|
||||
assert(argv);
|
||||
|
||||
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
|
||||
|
||||
switch (c) {
|
||||
|
||||
case 'h':
|
||||
help();
|
||||
return 0;
|
||||
|
||||
case ARG_VERSION:
|
||||
puts(PACKAGE_STRING);
|
||||
puts(SYSTEMD_FEATURES);
|
||||
return 0;
|
||||
|
||||
case ARG_ADDRESS: {
|
||||
char *a;
|
||||
|
||||
a = strdup(optarg);
|
||||
if (!a)
|
||||
return log_oom();
|
||||
|
||||
free(arg_address);
|
||||
arg_address = a;
|
||||
break;
|
||||
}
|
||||
|
||||
case ARG_CONFIGURATION:
|
||||
r = strv_extend(&arg_configuration, optarg);
|
||||
if (r < 0)
|
||||
return log_oom();
|
||||
break;
|
||||
|
||||
case ARG_MACHINE: {
|
||||
_cleanup_free_ char *e = NULL;
|
||||
char *a;
|
||||
|
||||
e = bus_address_escape(optarg);
|
||||
if (!e)
|
||||
return log_oom();
|
||||
|
||||
#ifdef ENABLE_KDBUS
|
||||
a = strjoin("x-machine-kernel:machine=", e, ";x-machine-unix:machine=", e, NULL);
|
||||
#else
|
||||
a = strjoin("x-machine-unix:machine=", e, NULL);
|
||||
#endif
|
||||
if (!a)
|
||||
return log_oom();
|
||||
|
||||
free(arg_address);
|
||||
arg_address = a;
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
case '?':
|
||||
return -EINVAL;
|
||||
|
||||
default:
|
||||
assert_not_reached("Unhandled option");
|
||||
}
|
||||
|
||||
/* If the first command line argument is only "x" characters
|
||||
* we'll write who we are talking to into it, so that "ps" is
|
||||
* explanatory */
|
||||
arg_command_line_buffer = argv[optind];
|
||||
if (argc > optind + 1 || (arg_command_line_buffer && !in_charset(arg_command_line_buffer, "x"))) {
|
||||
log_error("Too many arguments");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (!arg_address) {
|
||||
arg_address = strdup(DEFAULT_SYSTEM_BUS_ADDRESS);
|
||||
if (!arg_address)
|
||||
return log_oom();
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int rename_service(sd_bus *a, sd_bus *b) {
|
||||
_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
|
||||
_cleanup_free_ char *p = NULL, *name = NULL;
|
||||
const char *comm;
|
||||
char **cmdline;
|
||||
uid_t uid;
|
||||
pid_t pid;
|
||||
int r;
|
||||
|
||||
assert(a);
|
||||
assert(b);
|
||||
|
||||
r = sd_bus_get_owner_creds(b, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_CMDLINE|SD_BUS_CREDS_COMM|SD_BUS_CREDS_AUGMENT, &creds);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_bus_creds_get_uid(creds, &uid);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_bus_creds_get_pid(creds, &pid);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_bus_creds_get_cmdline(creds, &cmdline);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
r = sd_bus_creds_get_comm(creds, &comm);
|
||||
if (r < 0)
|
||||
return r;
|
||||
|
||||
name = uid_to_name(uid);
|
||||
if (!name)
|
||||
return -ENOMEM;
|
||||
|
||||
p = strv_join(cmdline, " ");
|
||||
if (!p)
|
||||
return -ENOMEM;
|
||||
|
||||
/* The status string gets the full command line ... */
|
||||
sd_notifyf(false,
|
||||
"STATUS=Processing requests from client PID "PID_FMT" (%s); UID "UID_FMT" (%s)",
|
||||
pid, p,
|
||||
uid, name);
|
||||
|
||||
/* ... and the argv line only the short comm */
|
||||
if (arg_command_line_buffer) {
|
||||
size_t m, w;
|
||||
|
||||
m = strlen(arg_command_line_buffer);
|
||||
w = snprintf(arg_command_line_buffer, m,
|
||||
"[PID "PID_FMT"/%s; UID "UID_FMT"/%s]",
|
||||
pid, comm,
|
||||
uid, name);
|
||||
|
||||
if (m > w)
|
||||
memzero(arg_command_line_buffer + w, m - w);
|
||||
}
|
||||
|
||||
log_debug("Running on behalf of PID "PID_FMT" (%s), UID "UID_FMT" (%s), %s",
|
||||
pid, p,
|
||||
uid, name,
|
||||
a->unique_name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
_cleanup_(proxy_freep) Proxy *p = NULL;
|
||||
int r;
|
||||
|
||||
log_set_target(LOG_TARGET_JOURNAL_OR_KMSG);
|
||||
log_parse_environment();
|
||||
log_open();
|
||||
|
||||
r = parse_argv(argc, argv);
|
||||
if (r <= 0)
|
||||
goto finish;
|
||||
|
||||
r = proxy_new(&p, STDIN_FILENO, STDOUT_FILENO, arg_address);
|
||||
if (r < 0)
|
||||
goto finish;
|
||||
|
||||
r = proxy_load_policy(p, arg_configuration);
|
||||
if (r < 0)
|
||||
goto finish;
|
||||
|
||||
r = proxy_hello_policy(p, getuid());
|
||||
if (r < 0)
|
||||
goto finish;
|
||||
|
||||
r = rename_service(p->dest_bus, p->local_bus);
|
||||
if (r < 0)
|
||||
log_debug_errno(r, "Failed to rename process: %m");
|
||||
|
||||
r = proxy_run(p);
|
||||
|
||||
finish:
|
||||
sd_notify(false,
|
||||
"STOPPING=1\n"
|
||||
"STATUS=Shutting down.");
|
||||
|
||||
strv_free(arg_configuration);
|
||||
free(arg_address);
|
||||
|
||||
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user