projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
|---|---|---|
| db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| d093b62c LP |
2 | |
| 3 | #include <sys/stat.h> | |
| 4 | #include <sys/types.h> | |
| 5 | ||
| 6 | #include "daemon-util.h" | |
| 7 | #include "userdbd-manager.h" | |
| 8 | #include "log.h" | |
| 9 | #include "main-func.h" | |
| 10 | #include "signal-util.h" | |
| 11 | ||
| 12 | /* This service offers two Varlink services, both implementing io.systemd.UserDatabase: | |
| 13 | * | |
| 4fcc9c49 | 14 | * → io.systemd.NameServiceSwitch: this is a compatibility interface for glibc NSS: it responds to |
| d093b62c LP |
15 | * name lookups by checking the classic NSS interfaces and responding that. |
| 16 | * | |
| 17 | * → io.systemd.Multiplexer: this multiplexes lookup requests to all Varlink services that have a | |
| 18 | * socket in /run/systemd/userdb/. It's supposed to simplify clients that don't want to implement | |
| 19 | * the full iterative logic on their own. | |
| 8fbb1941 LP |
20 | * |
| 21 | * → io.systemd.DropIn: this makes JSON user/group records dropped into /run/userdb/ available as | |
| 22 | * regular users. | |
| d093b62c LP |
23 | */ |
| 24 | ||
| 25 | static int run(int argc, char *argv[]) { | |
| d093b62c | 26 | _cleanup_(manager_freep) Manager *m = NULL; |
| d7ac0952 | 27 | _unused_ _cleanup_(notify_on_cleanup) const char *notify_stop = NULL; |
| d093b62c LP |
28 | int r; |
| 29 | ||
| d2acb93d | 30 | log_setup(); |
| d093b62c LP |
31 | |
| 32 | umask(0022); | |
| 33 | ||
| 34 | if (argc != 1) | |
| 35 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program takes no arguments."); | |
| 36 | ||
| 8fbb1941 LP |
37 | if (setenv("SYSTEMD_BYPASS_USERDB", "io.systemd.NameServiceSwitch:io.systemd.Multiplexer:io.systemd.DropIn", 1) < 0) |
| 38 | return log_error_errno(errno, "Failed to set $SYSTEMD_BYPASS_USERDB: %m"); | |
| d093b62c | 39 | |
| db7136ec | 40 | assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGCHLD) >= 0); |
| d093b62c LP |
41 | |
| 42 | r = manager_new(&m); | |
| 43 | if (r < 0) | |
| 44 | return log_error_errno(r, "Could not create manager: %m"); | |
| 45 | ||
| 46 | r = manager_startup(m); | |
| 47 | if (r < 0) | |
| 48 | return log_error_errno(r, "Failed to start up daemon: %m"); | |
| 49 | ||
| 50 | notify_stop = notify_start(NOTIFY_READY, NOTIFY_STOPPING); | |
| 51 | ||
| 52 | r = sd_event_loop(m->event); | |
| 53 | if (r < 0) | |
| 54 | return log_error_errno(r, "Event loop failed: %m"); | |
| 55 | ||
| 56 | return 0; | |
| 57 | } | |
| 58 | ||
| 59 | DEFINE_MAIN_FUNCTION(run); |