X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fsocket.c;h=2def0c9eadad80dfeb21ba52321aafc155b1d253;hp=2be1647be9ed637810e7c8cdbaea0d23be8367e4;hb=74c964d369b11bbf465c140c3f2dfcde2c7f5977;hpb=c69182961b00707d977957cf81d5c41cfbeab429 diff --git a/src/core/socket.c b/src/core/socket.c index 2be1647be..2def0c9ea 100644 --- a/src/core/socket.c +++ b/src/core/socket.c @@ -28,6 +28,9 @@ #include #include #include +#ifdef HAVE_XATTR +#include +#endif #include "unit.h" #include "socket.h" @@ -39,10 +42,11 @@ #include "mkdir.h" #include "path-util.h" #include "unit-name.h" +#include "unit-printf.h" #include "dbus-socket.h" #include "missing.h" #include "special.h" -#include "bus-errors.h" +#include "dbus-common.h" #include "label.h" #include "exit-status.h" #include "def.h" @@ -83,6 +87,8 @@ static void socket_init(Unit *u) { exec_context_init(&s->exec_context); s->exec_context.std_output = u->manager->default_std_output; s->exec_context.std_error = u->manager->default_std_error; + kill_context_init(&s->kill_context); + cgroup_context_init(&s->cgroup_context); s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; } @@ -97,8 +103,7 @@ static void socket_unwatch_control_pid(Socket *s) { s->control_pid = 0; } -static void socket_done(Unit *u) { - Socket *s = SOCKET(u); +void socket_free_ports(Socket *s) { SocketPort *p; assert(s); @@ -114,8 +119,18 @@ static void socket_done(Unit *u) { free(p->path); free(p); } +} + +static void socket_done(Unit *u) { + Socket *s = SOCKET(u); + + assert(s); + + socket_free_ports(s); + + exec_context_done(&s->exec_context, manager_is_reloading_or_reexecuting(u->manager)); + cgroup_context_init(&s->cgroup_context); - exec_context_done(&s->exec_context); exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX); s->control_command = NULL; @@ -129,6 +144,10 @@ static void socket_done(Unit *u) { free(s->bind_to_device); s->bind_to_device = NULL; + free(s->smack); + free(s->smack_ip_in); + free(s->smack_ip_out); + unit_unwatch_timer(u, &s->timer_watch); } @@ -165,7 +184,7 @@ static int socket_instantiate_service(Socket *s) { return r; #ifdef HAVE_SYSV_COMPAT - if (SERVICE(u)->sysv_path) { + if (SERVICE(u)->is_sysv) { log_error("Using SysV services for socket activation is not supported. Refusing."); return -ENOENT; } @@ -204,27 +223,35 @@ static int socket_verify(Socket *s) { return 0; if (!s->ports) { - log_error("%s lacks Listen setting. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, + "%s lacks Listen setting. Refusing.", UNIT(s)->id); return -EINVAL; } if (s->accept && have_non_accept_socket(s)) { - log_error("%s configured for accepting sockets, but sockets are non-accepting. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, + "%s configured for accepting sockets, but sockets are non-accepting. Refusing.", + UNIT(s)->id); return -EINVAL; } if (s->accept && s->max_connections <= 0) { - log_error("%s's MaxConnection setting too small. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, + "%s's MaxConnection setting too small. Refusing.", UNIT(s)->id); return -EINVAL; } if (s->accept && UNIT_DEREF(s->service)) { - log_error("Explicit service configuration for accepting sockets not supported on %s. Refusing.", UNIT(s)->id); + log_error_unit(UNIT(s)->id, + "Explicit service configuration for accepting sockets not supported on %s. Refusing.", + UNIT(s)->id); return -EINVAL; } - if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) { - log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id); + if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) { + log_error_unit(UNIT(s)->id, + "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", + UNIT(s)->id); return -EINVAL; } @@ -263,7 +290,8 @@ int socket_add_one_mount_link(Socket *s, Mount *m) { if (!socket_needs_mount(s, m->where)) return 0; - if ((r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0) + r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true); + if (r < 0) return r; return 0; @@ -275,9 +303,11 @@ static int socket_add_mount_links(Socket *s) { assert(s); - LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_MOUNT]) - if ((r = socket_add_one_mount_link(s, MOUNT(other))) < 0) + LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_MOUNT]) { + r = socket_add_one_mount_link(s, MOUNT(other)); + if (r < 0) return r; + } return 0; } @@ -288,7 +318,7 @@ static int socket_add_device_link(Socket *s) { assert(s); - if (!s->bind_to_device) + if (!s->bind_to_device || streq(s->bind_to_device, "lo")) return 0; if (asprintf(&t, "/sys/subsystem/net/devices/%s", s->bind_to_device) < 0) @@ -304,18 +334,20 @@ static int socket_add_default_dependencies(Socket *s) { int r; assert(s); - if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) { - if ((r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0) - return r; + r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true); + if (r < 0) + return r; - if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0) + if (UNIT(s)->manager->running_as == SYSTEMD_SYSTEM) { + r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true); + if (r < 0) return r; } return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); } -static bool socket_has_exec(Socket *s) { +_pure_ static bool socket_has_exec(Socket *s) { unsigned i; assert(s); @@ -366,18 +398,23 @@ static int socket_load(Unit *u) { if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0) return r; - if ((r = unit_add_default_cgroups(u)) < 0) + r = unit_add_default_slice(u); + if (r < 0) return r; if (UNIT(s)->default_dependencies) if ((r = socket_add_default_dependencies(s)) < 0) return r; + + r = unit_exec_context_defaults(u, &s->exec_context); + if (r < 0) + return r; } return socket_verify(s); } -static const char* listen_lookup(int family, int type) { +_const_ static const char* listen_lookup(int family, int type) { if (family == AF_NETLINK) return "ListenNetlink"; @@ -499,6 +536,21 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) { "%sMessageQueueMessageSize: %li\n", prefix, s->mq_msgsize); + if (s->smack) + fprintf(f, + "%sSmackLabel: %s\n", + prefix, s->smack); + + if (s->smack_ip_in) + fprintf(f, + "%sSmackLabelIPIn: %s\n", + prefix, s->smack_ip_in); + + if (s->smack_ip_out) + fprintf(f, + "%sSmackLabelIPOut: %s\n", + prefix, s->smack_ip_out); + LIST_FOREACH(port, p, s->ports) { if (p->type == SOCKET_SOCKET) { @@ -522,6 +574,7 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) { } exec_context_dump(&s->exec_context, f, prefix); + kill_context_dump(&s->kill_context, f, prefix); for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) { if (!s->exec_command[c]) @@ -578,7 +631,7 @@ static int instance_from_socket(int fd, unsigned nr, char **instance) { } case AF_INET6: { - static const char ipv4_prefix[] = { + static const unsigned char ipv4_prefix[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF }; @@ -668,30 +721,30 @@ static void socket_apply_socket_options(Socket *s, int fd) { if (s->keep_alive) { int b = s->keep_alive; if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0) - log_warning("SO_KEEPALIVE failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_KEEPALIVE failed: %m"); } if (s->broadcast) { int one = 1; if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) < 0) - log_warning("SO_BROADCAST failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_BROADCAST failed: %m"); } if (s->pass_cred) { int one = 1; if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0) - log_warning("SO_PASSCRED failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_PASSCRED failed: %m"); } if (s->pass_sec) { int one = 1; if (setsockopt(fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)) < 0) - log_warning("SO_PASSSEC failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_PASSSEC failed: %m"); } if (s->priority >= 0) if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0) - log_warning("SO_PRIORITY failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_PRIORITY failed: %m"); if (s->receive_buffer > 0) { int value = (int) s->receive_buffer; @@ -700,23 +753,23 @@ static void socket_apply_socket_options(Socket *s, int fd) { if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &value, sizeof(value)) < 0) if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0) - log_warning("SO_RCVBUF failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_RCVBUF failed: %m"); } if (s->send_buffer > 0) { int value = (int) s->send_buffer; if (setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &value, sizeof(value)) < 0) if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0) - log_warning("SO_SNDBUF failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_SNDBUF failed: %m"); } if (s->mark >= 0) if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0) - log_warning("SO_MARK failed: %m"); + log_warning_unit(UNIT(s)->id, "SO_MARK failed: %m"); if (s->ip_tos >= 0) if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0) - log_warning("IP_TOS failed: %m"); + log_warning_unit(UNIT(s)->id, "IP_TOS failed: %m"); if (s->ip_ttl >= 0) { int r, x; @@ -731,12 +784,25 @@ static void socket_apply_socket_options(Socket *s, int fd) { } if (r < 0 && x < 0) - log_warning("IP_TTL/IPV6_UNICAST_HOPS failed: %m"); + log_warning_unit(UNIT(s)->id, + "IP_TTL/IPV6_UNICAST_HOPS failed: %m"); } if (s->tcp_congestion) if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0) - log_warning("TCP_CONGESTION failed: %m"); + log_warning_unit(UNIT(s)->id, "TCP_CONGESTION failed: %m"); + +#ifdef HAVE_SMACK + if (s->smack_ip_in) + if (fsetxattr(fd, "security.SMACK64IPIN", s->smack_ip_in, strlen(s->smack_ip_in), 0) < 0) + log_error_unit(UNIT(s)->id, + "fsetxattr(\"security.SMACK64IPIN\"): %m"); + + if (s->smack_ip_out) + if (fsetxattr(fd, "security.SMACK64IPOUT", s->smack_ip_out, strlen(s->smack_ip_out), 0) < 0) + log_error_unit(UNIT(s)->id, + "fsetxattr(\"security.SMACK64IPOUT\"): %m"); +#endif } static void socket_apply_fifo_options(Socket *s, int fd) { @@ -745,7 +811,15 @@ static void socket_apply_fifo_options(Socket *s, int fd) { if (s->pipe_size > 0) if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0) - log_warning("F_SETPIPE_SZ: %m"); + log_warning_unit(UNIT(s)->id, + "F_SETPIPE_SZ: %m"); + +#ifdef HAVE_SMACK + if (s->smack) + if (fsetxattr(fd, "security.SMACK64", s->smack, strlen(s->smack), 0) < 0) + log_error_unit(UNIT(s)->id, + "fsetxattr(\"security.SMACK64\"): %m"); +#endif } static int fifo_address_create( @@ -761,7 +835,7 @@ static int fifo_address_create( assert(path); assert(_fd); - mkdir_parents(path, directory_mode); + mkdir_parents_label(path, directory_mode); r = label_context_set(path, S_IFIFO); if (r < 0) @@ -930,7 +1004,7 @@ static int socket_open_fds(Socket *s) { if ((r = socket_instantiate_service(s)) < 0) return r; - if (UNIT_DEREF(s->service) && + if (UNIT_ISSET(s->service) && SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]) { r = label_get_create_label_from_exe(SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]->path, &label); @@ -1069,10 +1143,10 @@ static void socket_set_state(Socket *s, SocketState state) { socket_close_fds(s); if (state != old_state) - log_debug("%s changed %s -> %s", - UNIT(s)->id, - socket_state_to_string(old_state), - socket_state_to_string(state)); + log_debug_unit(UNIT(s)->id, + "%s changed %s -> %s", UNIT(s)->id, + socket_state_to_string(old_state), + socket_state_to_string(state)); unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true); } @@ -1098,10 +1172,12 @@ static int socket_coldplug(Unit *u) { if (s->control_pid <= 0) return -EBADMSG; - if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0) + r = unit_watch_pid(UNIT(s), s->control_pid); + if (r < 0) return r; - if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) + r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_usec, &s->timer_watch); + if (r < 0) return r; } @@ -1133,10 +1209,14 @@ static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) { assert(c); assert(_pid); - if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) + unit_realize_cgroup(UNIT(s)); + + r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_usec, &s->timer_watch); + if (r < 0) goto fail; - if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) { + argv = unit_full_printf_strv(UNIT(s), c->argv); + if (!argv) { r = -ENOMEM; goto fail; } @@ -1150,9 +1230,9 @@ static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) { true, true, UNIT(s)->manager->confirm_spawn, - UNIT(s)->cgroup_bondings, - UNIT(s)->cgroup_attributes, - NULL, + UNIT(s)->cgroup_mask, + UNIT(s)->cgroup_path, + UNIT(s)->id, NULL, &pid); @@ -1180,6 +1260,7 @@ static void socket_enter_dead(Socket *s, SocketResult f) { if (f != SOCKET_SUCCESS) s->result = f; + exec_context_tmp_dirs_done(&s->exec_context); socket_set_state(s, s->result != SOCKET_SUCCESS ? SOCKET_FAILED : SOCKET_DEAD); } @@ -1207,57 +1288,33 @@ static void socket_enter_stop_post(Socket *s, SocketResult f) { return; fail: - log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'stop-post' task: %s", + UNIT(s)->id, strerror(-r)); socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES); } static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) { int r; - Set *pid_set = NULL; - bool wait_for_exit = false; assert(s); if (f != SOCKET_SUCCESS) s->result = f; - if (s->exec_context.kill_mode != KILL_NONE) { - int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL; - - if (s->control_pid > 0) { - if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH) - - log_warning("Failed to kill control process %li: %m", (long) s->control_pid); - else - wait_for_exit = true; - } - - if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) { - - if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) { - r = -ENOMEM; - goto fail; - } - - /* Exclude the control pid from being killed via the cgroup */ - if (s->control_pid > 0) - if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) - goto fail; - - r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, false, pid_set, NULL); - if (r < 0) { - if (r != -EAGAIN && r != -ESRCH && r != -ENOENT) - log_warning("Failed to kill control group: %s", strerror(-r)); - } else if (r > 0) - wait_for_exit = true; - - set_free(pid_set); - pid_set = NULL; - } - } + r = unit_kill_context( + UNIT(s), + &s->kill_context, + state != SOCKET_STOP_PRE_SIGTERM && state != SOCKET_FINAL_SIGTERM, + -1, + s->control_pid, + false); + if (r < 0) + goto fail; - if (wait_for_exit) { - if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0) + if (r > 0) { + r = unit_watch_timer(UNIT(s), CLOCK_MONOTONIC, true, s->timeout_usec, &s->timer_watch); + if (r < 0) goto fail; socket_set_state(s, state); @@ -1269,15 +1326,14 @@ static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) { return; fail: - log_warning("%s failed to kill processes: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to kill processes: %s", + UNIT(s)->id, strerror(-r)); if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL) socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES); else socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); - - if (pid_set) - set_free(pid_set); } static void socket_enter_stop_pre(Socket *s, SocketResult f) { @@ -1302,7 +1358,9 @@ static void socket_enter_stop_pre(Socket *s, SocketResult f) { return; fail: - log_warning("%s failed to run 'stop-pre' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'stop-pre' task: %s", + UNIT(s)->id, strerror(-r)); socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES); } @@ -1312,7 +1370,9 @@ static void socket_enter_listening(Socket *s) { r = socket_watch_fds(s); if (r < 0) { - log_warning("%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to watch sockets: %s", + UNIT(s)->id, strerror(-r)); goto fail; } @@ -1329,7 +1389,9 @@ static void socket_enter_start_post(Socket *s) { r = socket_open_fds(s); if (r < 0) { - log_warning("%s failed to listen on sockets: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to listen on sockets: %s", + UNIT(s)->id, strerror(-r)); goto fail; } @@ -1340,7 +1402,9 @@ static void socket_enter_start_post(Socket *s) { if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) { r = socket_spawn(s, s->control_command, &s->control_pid); if (r < 0) { - log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'start-post' task: %s", + UNIT(s)->id, strerror(-r)); goto fail; } @@ -1373,7 +1437,9 @@ static void socket_enter_start_pre(Socket *s) { return; fail: - log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run 'start-pre' task: %s", + UNIT(s)->id, strerror(-r)); socket_enter_dead(s, SOCKET_FAILURE_RESOURCES); } @@ -1386,8 +1452,10 @@ static void socket_enter_running(Socket *s, int cfd) { /* We don't take connections anymore if we are supposed to * shut down anyway */ - if (unit_pending_inactive(UNIT(s))) { - log_debug("Suppressing connection request on %s since unit stop is scheduled.", UNIT(s)->id); + if (unit_stop_pending(UNIT(s))) { + log_debug_unit(UNIT(s)->id, + "Suppressing connection request on %s since unit stop is scheduled.", + UNIT(s)->id); if (cfd >= 0) close_nointr_nofail(cfd); @@ -1397,7 +1465,9 @@ static void socket_enter_running(Socket *s, int cfd) { r = socket_watch_fds(s); if (r < 0) { - log_warning("%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to watch sockets: %s", + UNIT(s)->id, strerror(-r)); socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); } } @@ -1413,7 +1483,7 @@ static void socket_enter_running(Socket *s, int cfd) { /* If there's already a start pending don't bother to * do anything */ SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERS], i) - if (unit_pending_active(u)) { + if (unit_active_or_pending(u)) { pending = true; break; } @@ -1430,7 +1500,9 @@ static void socket_enter_running(Socket *s, int cfd) { Service *service; if (s->n_connections >= s->max_connections) { - log_warning("Too many incoming connections (%u)", s->n_connections); + log_warning_unit(UNIT(s)->id, + "%s: Too many incoming connections (%u)", + UNIT(s)->id, s->n_connections); close_nointr_nofail(cfd); return; } @@ -1499,7 +1571,11 @@ static void socket_enter_running(Socket *s, int cfd) { return; fail: - log_warning("%s failed to queue socket startup job: %s", UNIT(s)->id, bus_error(&error, r)); + log_warning_unit(UNIT(s)->id, + "%s failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s", + UNIT(s)->id, + cfd >= 0 ? "template" : "non-template", + bus_error(&error, r)); socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); if (cfd >= 0) @@ -1525,7 +1601,9 @@ static void socket_run_next(Socket *s) { return; fail: - log_warning("%s failed to run next task: %s", UNIT(s)->id, strerror(-r)); + log_warning_unit(UNIT(s)->id, + "%s failed to run next task: %s", + UNIT(s)->id, strerror(-r)); if (s->state == SOCKET_START_POST) socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES); @@ -1555,13 +1633,15 @@ static int socket_start(Unit *u) { return 0; /* Cannot run this without the service being around */ - if (UNIT_DEREF(s->service)) { + if (UNIT_ISSET(s->service)) { Service *service; service = SERVICE(UNIT_DEREF(s->service)); if (UNIT(service)->load_state != UNIT_LOADED) { - log_error("Socket service %s not loaded, refusing.", UNIT(service)->id); + log_error_unit(u->id, + "Socket service %s not loaded, refusing.", + UNIT(service)->id); return -ENOENT; } @@ -1570,13 +1650,16 @@ static int socket_start(Unit *u) { if (service->state != SERVICE_DEAD && service->state != SERVICE_FAILED && service->state != SERVICE_AUTO_RESTART) { - log_error("Socket service %s already active, refusing.", UNIT(service)->id); + log_error_unit(u->id, + "Socket service %s already active, refusing.", + UNIT(service)->id); return -EBUSY; } #ifdef HAVE_SYSV_COMPAT - if (service->sysv_path) { - log_error("Using SysV services for socket activation is not supported. Refusing."); + if (service->is_sysv) { + log_error_unit(u->id, + "Using SysV services for socket activation is not supported. Refusing."); return -ENOENT; } #endif @@ -1648,7 +1731,8 @@ static int socket_serialize(Unit *u, FILE *f, FDSet *fds) { if (p->type == SOCKET_SOCKET) { char *t; - if ((r = socket_address_print(&p->address, &t)) < 0) + r = socket_address_print(&p->address, &t); + if (r < 0) return r; if (socket_address_family(&p->address) == AF_NETLINK) @@ -1658,12 +1742,16 @@ static int socket_serialize(Unit *u, FILE *f, FDSet *fds) { free(t); } else if (p->type == SOCKET_SPECIAL) unit_serialize_item_format(u, f, "special", "%i %s", copy, p->path); + else if (p->type == SOCKET_MQUEUE) + unit_serialize_item_format(u, f, "mqueue", "%i %s", copy, p->path); else { assert(p->type == SOCKET_FIFO); unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path); } } + exec_context_serialize(&s->exec_context, UNIT(s), f); + return 0; } @@ -1678,8 +1766,10 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, if (streq(key, "state")) { SocketState state; - if ((state = socket_state_from_string(value)) < 0) - log_debug("Failed to parse state value %s", value); + state = socket_state_from_string(value); + if (state < 0) + log_debug_unit(u->id, + "Failed to parse state value %s", value); else s->deserialized_state = state; } else if (streq(key, "result")) { @@ -1687,7 +1777,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, f = socket_result_from_string(value); if (f < 0) - log_debug("Failed to parse result value %s", value); + log_debug_unit(u->id, + "Failed to parse result value %s", value); else if (f != SOCKET_SUCCESS) s->result = f; @@ -1695,21 +1786,25 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, unsigned k; if (safe_atou(value, &k) < 0) - log_debug("Failed to parse n-accepted value %s", value); + log_debug_unit(u->id, + "Failed to parse n-accepted value %s", value); else s->n_accepted += k; } else if (streq(key, "control-pid")) { pid_t pid; if (parse_pid(value, &pid) < 0) - log_debug("Failed to parse control-pid value %s", value); + log_debug_unit(u->id, + "Failed to parse control-pid value %s", value); else s->control_pid = pid; } else if (streq(key, "control-command")) { SocketExecCommand id; - if ((id = socket_exec_command_from_string(value)) < 0) - log_debug("Failed to parse exec-command value %s", value); + id = socket_exec_command_from_string(value); + if (id < 0) + log_debug_unit(u->id, + "Failed to parse exec-command value %s", value); else { s->control_command_id = id; s->control_command = s->exec_command[id]; @@ -1719,7 +1814,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, SocketPort *p; if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) - log_debug("Failed to parse fifo value %s", value); + log_debug_unit(u->id, + "Failed to parse fifo value %s", value); else { LIST_FOREACH(port, p, s->ports) @@ -1739,7 +1835,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, SocketPort *p; if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) - log_debug("Failed to parse special value %s", value); + log_debug_unit(u->id, + "Failed to parse special value %s", value); else { LIST_FOREACH(port, p, s->ports) @@ -1754,12 +1851,34 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, } } + } else if (streq(key, "mqueue")) { + int fd, skip = 0; + SocketPort *p; + + if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) + log_debug_unit(u->id, + "Failed to parse mqueue value %s", value); + else { + + LIST_FOREACH(port, p, s->ports) + if (p->type == SOCKET_MQUEUE && + streq_ptr(p->path, value+skip)) + break; + + if (p) { + if (p->fd >= 0) + close_nointr_nofail(p->fd); + p->fd = fdset_remove(fds, fd); + } + } + } else if (streq(key, "socket")) { int fd, type, skip = 0; SocketPort *p; if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd)) - log_debug("Failed to parse socket value %s", value); + log_debug_unit(u->id, + "Failed to parse socket value %s", value); else { LIST_FOREACH(port, p, s->ports) @@ -1778,7 +1897,8 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, SocketPort *p; if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd)) - log_debug("Failed to parse socket value %s", value); + log_debug_unit(u->id, + "Failed to parse socket value %s", value); else { LIST_FOREACH(port, p, s->ports) @@ -1791,26 +1911,92 @@ static int socket_deserialize_item(Unit *u, const char *key, const char *value, p->fd = fdset_remove(fds, fd); } } + } else if (streq(key, "tmp-dir")) { + char *t; + + t = strdup(value); + if (!t) + return log_oom(); + s->exec_context.tmp_dir = t; + } else if (streq(key, "var-tmp-dir")) { + char *t; + + t = strdup(value); + if (!t) + return log_oom(); + + s->exec_context.var_tmp_dir = t; } else - log_debug("Unknown serialization key '%s'", key); + log_debug_unit(UNIT(s)->id, + "Unknown serialization key '%s'", key); return 0; } -static UnitActiveState socket_active_state(Unit *u) { +static int socket_distribute_fds(Unit *u, FDSet *fds) { + Socket *s = SOCKET(u); + SocketPort *p; + + assert(u); + + LIST_FOREACH(port, p, s->ports) { + Iterator i; + int fd; + + if (p->type != SOCKET_SOCKET) + continue; + + if (p->fd >= 0) + continue; + + FDSET_FOREACH(fd, fds, i) { + if (socket_address_matches_fd(&p->address, fd)) { + p->fd = fdset_remove(fds, fd); + s->deserialized_state = SOCKET_LISTENING; + break; + } + } + } + + return 0; +} + +_pure_ static UnitActiveState socket_active_state(Unit *u) { assert(u); return state_translation_table[SOCKET(u)->state]; } -static const char *socket_sub_state_to_string(Unit *u) { +_pure_ static const char *socket_sub_state_to_string(Unit *u) { assert(u); return socket_state_to_string(SOCKET(u)->state); } -static bool socket_check_gc(Unit *u) { +const char* socket_port_type_to_string(SocketPort *p) { + + assert(p); + + switch (p->type) { + case SOCKET_SOCKET: + switch (p->address.type) { + case SOCK_STREAM: return "Stream"; + case SOCK_DGRAM: return "Datagram"; + case SOCK_SEQPACKET: return "SequentialPacket"; + case SOCK_RAW: + if (socket_address_family(&p->address) == AF_NETLINK) + return "Netlink"; + default: return "Invalid"; + } + case SOCKET_SPECIAL: return "Special"; + case SOCKET_MQUEUE: return "MessageQueue"; + case SOCKET_FIFO: return "FIFO"; + default: return NULL; + } +} + +_pure_ static bool socket_check_gc(Unit *u) { Socket *s = SOCKET(u); assert(u); @@ -1828,14 +2014,18 @@ static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { if (s->state != SOCKET_LISTENING) return; - log_debug("Incoming traffic on %s", u->id); + log_debug_unit(u->id, "Incoming traffic on %s", u->id); if (events != EPOLLIN) { if (events & EPOLLHUP) - log_error("%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.", u->id); + log_error_unit(u->id, + "%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.", + u->id); else - log_error("%s: Got unexpected poll event (0x%x) on socket.", u->id, events); + log_error_unit(u->id, + "%s: Got unexpected poll event (0x%x) on socket.", + u->id, events); goto fail; } @@ -1843,12 +2033,14 @@ static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { if (w->socket_accept) { for (;;) { - if ((cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK)) < 0) { + cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK); + if (cfd < 0) { if (errno == EINTR) continue; - log_error("Failed to accept socket: %m"); + log_error_unit(u->id, + "Failed to accept socket: %m"); goto fail; } @@ -1877,7 +2069,7 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { s->control_pid = 0; - if (is_clean_exit(code, status)) + if (is_clean_exit(code, status, NULL)) f = SOCKET_SUCCESS; else if (code == CLD_EXITED) f = SOCKET_FAILURE_EXIT_CODE; @@ -1895,8 +2087,10 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { f = SOCKET_SUCCESS; } - log_full(f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE, - "%s control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status); + log_full_unit(f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE, + u->id, + "%s control process exited, code=%s status=%i", + u->id, sigchld_code_to_string(code), status); if (f != SOCKET_SUCCESS) s->result = f; @@ -1905,7 +2099,9 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { s->control_command->command_next && f == SOCKET_SUCCESS) { - log_debug("%s running next command for state %s", u->id, socket_state_to_string(s->state)); + log_debug_unit(u->id, + "%s running next command for state %s", + u->id, socket_state_to_string(s->state)); socket_run_next(s); } else { s->control_command = NULL; @@ -1914,7 +2110,9 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { /* No further commands for this step, so let's figure * out what to do next */ - log_debug("%s got final SIGCHLD for state %s", u->id, socket_state_to_string(s->state)); + log_debug_unit(u->id, + "%s got final SIGCHLD for state %s", + u->id, socket_state_to_string(s->state)); switch (s->state) { @@ -1963,52 +2161,65 @@ static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) { switch (s->state) { case SOCKET_START_PRE: - log_warning("%s starting timed out. Terminating.", u->id); + log_warning_unit(u->id, + "%s starting timed out. Terminating.", u->id); socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT); break; case SOCKET_START_POST: - log_warning("%s starting timed out. Stopping.", u->id); + log_warning_unit(u->id, + "%s starting timed out. Stopping.", u->id); socket_enter_stop_pre(s, SOCKET_FAILURE_TIMEOUT); break; case SOCKET_STOP_PRE: - log_warning("%s stopping timed out. Terminating.", u->id); + log_warning_unit(u->id, + "%s stopping timed out. Terminating.", u->id); socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_FAILURE_TIMEOUT); break; case SOCKET_STOP_PRE_SIGTERM: - if (s->exec_context.send_sigkill) { - log_warning("%s stopping timed out. Killing.", u->id); + if (s->kill_context.send_sigkill) { + log_warning_unit(u->id, + "%s stopping timed out. Killing.", u->id); socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_FAILURE_TIMEOUT); } else { - log_warning("%s stopping timed out. Skipping SIGKILL. Ignoring.", u->id); + log_warning_unit(u->id, + "%s stopping timed out. Skipping SIGKILL. Ignoring.", + u->id); socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT); } break; case SOCKET_STOP_PRE_SIGKILL: - log_warning("%s still around after SIGKILL. Ignoring.", u->id); + log_warning_unit(u->id, + "%s still around after SIGKILL. Ignoring.", u->id); socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT); break; case SOCKET_STOP_POST: - log_warning("%s stopping timed out (2). Terminating.", u->id); + log_warning_unit(u->id, + "%s stopping timed out (2). Terminating.", u->id); socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT); break; case SOCKET_FINAL_SIGTERM: - if (s->exec_context.send_sigkill) { - log_warning("%s stopping timed out (2). Killing.", u->id); + if (s->kill_context.send_sigkill) { + log_warning_unit(u->id, + "%s stopping timed out (2). Killing.", u->id); socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_FAILURE_TIMEOUT); } else { - log_warning("%s stopping timed out (2). Skipping SIGKILL. Ignoring.", u->id); + log_warning_unit(u->id, + "%s stopping timed out (2). Skipping SIGKILL. Ignoring.", + u->id); socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT); } break; case SOCKET_FINAL_SIGKILL: - log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id); + log_warning_unit(u->id, + "%s still around after SIGKILL (2). Entering failed mode.", + u->id); socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT); break; @@ -2064,7 +2275,9 @@ void socket_notify_service_dead(Socket *s, bool failed_permanent) { * services. */ if (s->state == SOCKET_RUNNING) { - log_debug("%s got notified about service death (failed permanently: %s)", UNIT(s)->id, yes_no(failed_permanent)); + log_debug_unit(UNIT(s)->id, + "%s got notified about service death (failed permanently: %s)", + UNIT(s)->id, yes_no(failed_permanent)); if (failed_permanent) socket_enter_stop_pre(s, SOCKET_FAILURE_SERVICE_FAILED_PERMANENT); else @@ -2083,7 +2296,8 @@ void socket_connection_unref(Socket *s) { assert(s->n_connections > 0); s->n_connections--; - log_debug("%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections); + log_debug_unit(UNIT(s)->id, + "%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections); } static void socket_reset_failed(Unit *u) { @@ -2097,52 +2311,8 @@ static void socket_reset_failed(Unit *u) { s->result = SOCKET_SUCCESS; } -static int socket_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) { - Socket *s = SOCKET(u); - int r = 0; - Set *pid_set = NULL; - - assert(s); - - if (who == KILL_MAIN) { - dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "Socket units have no main processes"); - return -ESRCH; - } - - if (s->control_pid <= 0 && who == KILL_CONTROL) { - dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill"); - return -ESRCH; - } - - if (who == KILL_CONTROL || who == KILL_ALL) - if (s->control_pid > 0) - if (kill(s->control_pid, signo) < 0) - r = -errno; - - if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) { - int q; - - if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) - return -ENOMEM; - - /* Exclude the control pid from being killed via the cgroup */ - if (s->control_pid > 0) - if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) { - r = q; - goto finish; - } - - q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, false, pid_set, NULL); - if (q < 0) - if (q != -EAGAIN && q != -ESRCH && q != -ENOENT) - r = q; - } - -finish: - if (pid_set) - set_free(pid_set); - - return r; +static int socket_kill(Unit *u, KillWho who, int signo, DBusError *error) { + return unit_kill_common(u, who, signo, -1, SOCKET(u)->control_pid, error); } static const char* const socket_state_table[_SOCKET_STATE_MAX] = { @@ -2184,13 +2354,17 @@ static const char* const socket_result_table[_SOCKET_RESULT_MAX] = { DEFINE_STRING_TABLE_LOOKUP(socket_result, SocketResult); const UnitVTable socket_vtable = { - .suffix = ".socket", .object_size = sizeof(Socket), + .sections = "Unit\0" "Socket\0" "Install\0", + .private_section = "Socket", + .exec_context_offset = offsetof(Socket, exec_context), + .cgroup_context_offset = offsetof(Socket, cgroup_context), + .init = socket_init, .done = socket_done, .load = socket_load, @@ -2206,6 +2380,7 @@ const UnitVTable socket_vtable = { .serialize = socket_serialize, .deserialize_item = socket_deserialize_item, + .distribute_fds = socket_distribute_fds, .active_state = socket_active_state, .sub_state_to_string = socket_sub_state_to_string, @@ -2221,6 +2396,8 @@ const UnitVTable socket_vtable = { .bus_interface = "org.freedesktop.systemd1.Socket", .bus_message_handler = bus_socket_message_handler, .bus_invalidating_properties = bus_socket_invalidating_properties, + .bus_set_property = bus_socket_set_property, + .bus_commit_properties = bus_socket_commit_properties, .status_message_formats = { /*.starting_stopping = {