diff options
Diffstat (limited to 'src/bus-proxyd/stdio-bridge.c')
| -rw-r--r-- | src/bus-proxyd/stdio-bridge.c | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/src/bus-proxyd/stdio-bridge.c b/src/bus-proxyd/stdio-bridge.c deleted file mode 100644 index 291c1b09e3..0000000000 --- a/src/bus-proxyd/stdio-bridge.c +++ /dev/null @@ -1,244 +0,0 @@ -/*** - 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 <errno.h> -#include <getopt.h> -#include <stddef.h> -#include <string.h> -#include <unistd.h> - -#include "sd-bus.h" -#include "sd-daemon.h" - -#include "alloc-util.h" -#include "bus-internal.h" -#include "bus-util.h" -#include "def.h" -#include "formats-util.h" -#include "log.h" -#include "proxy.h" -#include "strv.h" -#include "user-util.h" -#include "util.h" - -static char *arg_address = NULL; -static char *arg_command_line_buffer = 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" - " --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_MACHINE, - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, ARG_VERSION }, - { "address", required_argument, NULL, ARG_ADDRESS }, - { "machine", required_argument, NULL, ARG_MACHINE }, - {}, - }; - - int c; - - 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: - return version(); - - case ARG_ADDRESS: { - char *a; - - a = strdup(optarg); - if (!a) - return log_oom(); - - free(arg_address); - arg_address = a; - break; - } - - case ARG_MACHINE: { - _cleanup_free_ char *e = NULL; - char *a; - - e = bus_address_escape(optarg); - if (!e) - return log_oom(); - - a = strjoin("x-machine-kernel:machine=", e, ";x-machine-unix:machine=", e, NULL); - 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_(sd_bus_creds_unrefp) 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_EUID|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_euid(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 = rename_service(p->destination_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."); - - free(arg_address); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} |