X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fsocket.c;h=00e0685aadec8476dc7b33aeb17b0d27a41afd55;hp=fdb6f66b6fd79c16470a7976875367ca644ec339;hb=e167fb86f6935c0fe989d6ccfbbc0acadba245a2;hpb=6cf6bbc2682c6df010d64ea7e49d93affa7282cd diff --git a/src/socket.c b/src/socket.c index fdb6f66b6..00e0685aa 100644 --- a/src/socket.c +++ b/src/socket.c @@ -36,6 +36,8 @@ #include "strv.h" #include "unit-name.h" #include "dbus-socket.h" +#include "missing.h" +#include "special.h" static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = { [SOCKET_DEAD] = UNIT_INACTIVE, @@ -49,7 +51,7 @@ static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = { [SOCKET_STOP_POST] = UNIT_DEACTIVATING, [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING, [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING, - [SOCKET_MAINTENANCE] = UNIT_INACTIVE, + [SOCKET_MAINTENANCE] = UNIT_MAINTENANCE }; static void socket_init(Unit *u) { @@ -65,6 +67,11 @@ static void socket_init(Unit *u) { s->max_connections = 64; + s->priority = -1; + s->ip_tos = -1; + s->ip_ttl = -1; + s->mark = -1; + exec_context_init(&s->exec_context); s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID; @@ -144,16 +151,21 @@ static bool have_non_accept_socket(Socket *s) { static int socket_verify(Socket *s) { assert(s); - if (UNIT(s)->meta.load_state != UNIT_LOADED) + if (s->meta.load_state != UNIT_LOADED) return 0; if (!s->ports) { - log_error("%s lacks Listen setting. Refusing.", UNIT(s)->meta.id); + log_error("%s lacks Listen setting. Refusing.", s->meta.id); return -EINVAL; } if (s->accept && s->max_connections <= 0) { - log_error("%s's MaxConnection setting too small. Refusing.", UNIT(s)->meta.id); + log_error("%s's MaxConnection setting too small. Refusing.", s->meta.id); + return -EINVAL; + } + + if (s->exec_context.pam_name && s->kill_mode != KILL_CONTROL_GROUP) { + log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id); return -EINVAL; } @@ -193,10 +205,7 @@ int socket_add_one_mount_link(Socket *s, Mount *m) { if (!socket_needs_mount(s, m->where)) return 0; - if ((r = unit_add_dependency(UNIT(m), UNIT_BEFORE, UNIT(s), true)) < 0) - return r; - - if ((r = unit_add_dependency(UNIT(s), UNIT_REQUIRES, UNIT(m), true)) < 0) + if ((r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0) return r; return 0; @@ -233,6 +242,17 @@ static int socket_add_device_link(Socket *s) { return r; } +static int socket_add_default_dependencies(Socket *s) { + int r; + assert(s); + + if (s->meta.manager->running_as == MANAGER_SYSTEM) + if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0) + return r; + + return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true); +} + static int socket_load(Unit *u) { Socket *s = SOCKET(u); int r; @@ -265,6 +285,10 @@ static int socket_load(Unit *u) { if ((r = unit_add_default_cgroup(u)) < 0) return r; + + if (s->meta.default_dependencies) + if ((r = socket_add_default_dependencies(s)) < 0) + return r; } return socket_verify(s); @@ -303,18 +327,22 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) { "%sBacklog: %u\n" "%sKillMode: %s\n" "%sSocketMode: %04o\n" - "%sDirectoryMode: %04o\n", + "%sDirectoryMode: %04o\n" + "%sKeepAlive: %s\n" + "%sFreeBind: %s\n", prefix, socket_state_to_string(s->state), prefix, socket_address_bind_ipv6_only_to_string(s->bind_ipv6_only), prefix, s->backlog, prefix, kill_mode_to_string(s->kill_mode), prefix, s->socket_mode, - prefix, s->directory_mode); + prefix, s->directory_mode, + prefix, yes_no(s->keep_alive), + prefix, yes_no(s->free_bind)); if (s->control_pid > 0) fprintf(f, - "%sControl PID: %llu\n", - prefix, (unsigned long long) s->control_pid); + "%sControl PID: %lu\n", + prefix, (unsigned long) s->control_pid); if (s->bind_to_device) fprintf(f, @@ -330,6 +358,41 @@ static void socket_dump(Unit *u, FILE *f, const char *prefix) { prefix, s->n_connections, prefix, s->max_connections); + if (s->priority >= 0) + fprintf(f, + "%sPriority: %i\n", + prefix, s->priority); + + if (s->receive_buffer > 0) + fprintf(f, + "%sReceiveBuffer: %zu\n", + prefix, s->receive_buffer); + + if (s->send_buffer > 0) + fprintf(f, + "%sSendBuffer: %zu\n", + prefix, s->send_buffer); + + if (s->ip_tos >= 0) + fprintf(f, + "%sIPTOS: %i\n", + prefix, s->ip_tos); + + if (s->ip_ttl >= 0) + fprintf(f, + "%sIPTTL: %i\n", + prefix, s->ip_ttl); + + if (s->pipe_size > 0) + fprintf(f, + "%sPipeSize: %zu\n", + prefix, s->pipe_size); + + if (s->mark >= 0) + fprintf(f, + "%sMark: %i\n", + prefix, s->mark); + LIST_FOREACH(port, p, s->ports) { if (p->type == SOCKET_SOCKET) { @@ -447,10 +510,10 @@ static int instance_from_socket(int fd, unsigned nr, char **instance) { return -errno; if (asprintf(&r, - "%u-%llu-%llu", + "%u-%lu-%lu", nr, - (unsigned long long) ucred.pid, - (unsigned long long) ucred.uid) < 0) + (unsigned long) ucred.pid, + (unsigned long) ucred.uid) < 0) return -ENOMEM; break; @@ -488,6 +551,60 @@ static void socket_close_fds(Socket *s) { } } +static void socket_apply_socket_options(Socket *s, int fd) { + assert(s); + assert(fd >= 0); + + 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"); + } + + if (s->priority >= 0) + if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0) + log_warning("SO_PRIORITY failed: %m"); + + if (s->receive_buffer > 0) { + int value = (int) s->receive_buffer; + if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0) + log_warning("SO_RCVBUF failed: %m"); + } + + if (s->send_buffer > 0) { + int value = (int) s->send_buffer; + if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0) + log_warning("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"); + + 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"); + + if (s->ip_ttl >= 0) { + int r, x; + + r = setsockopt(fd, IPPROTO_IP, IP_TTL, &s->ip_ttl, sizeof(s->ip_ttl)); + x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl)); + + if (r < 0 && x < 0) + log_warning("IP_TTL/IPV6_UNICAST_HOPS failed: %m"); + } +} + +static void socket_apply_pipe_options(Socket *s, int fd) { + assert(s); + assert(fd >= 0); + + if (s->pipe_size > 0) + if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0) + log_warning("F_SETPIPE_SZ: %m"); +} + static int socket_open_fds(Socket *s) { SocketPort *p; int r; @@ -506,11 +623,14 @@ static int socket_open_fds(Socket *s) { s->backlog, s->bind_ipv6_only, s->bind_to_device, + s->free_bind, s->directory_mode, s->socket_mode, &p->fd)) < 0) goto rollback; + socket_apply_socket_options(s, p->fd); + } else { struct stat st; assert(p->type == SOCKET_FIFO); @@ -538,6 +658,8 @@ static int socket_open_fds(Socket *s) { r = -EEXIST; goto rollback; } + + socket_apply_pipe_options(s, p->fd); } } @@ -699,8 +821,8 @@ static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) { s->meta.manager->environment, true, true, - UNIT(s)->meta.manager->confirm_spawn, - UNIT(s)->meta.cgroup_bondings, + s->meta.manager->confirm_spawn, + s->meta.cgroup_bondings, &pid); strv_free(argv); @@ -772,7 +894,7 @@ static void socket_enter_signal(Socket *s, SocketState state, bool success) { if (s->kill_mode == KILL_CONTROL_GROUP) { - if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) { + if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) { if (r != -EAGAIN && r != -ESRCH) goto fail; } else @@ -907,7 +1029,7 @@ static void socket_enter_running(Socket *s, int cfd) { assert(s); if (cfd < 0) { - if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, NULL)) < 0) + if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, NULL)) < 0) goto fail; socket_set_state(s, SOCKET_RUNNING); @@ -924,7 +1046,7 @@ static void socket_enter_running(Socket *s, int cfd) { if ((r = instance_from_socket(cfd, s->n_accepted++, &instance)) < 0) goto fail; - if (!(prefix = unit_name_to_prefix(UNIT(s)->meta.id))) { + if (!(prefix = unit_name_to_prefix(s->meta.id))) { free(instance); r = -ENOMEM; goto fail; @@ -939,7 +1061,7 @@ static void socket_enter_running(Socket *s, int cfd) { goto fail; } - r = manager_load_unit(UNIT(s)->meta.manager, name, NULL, &u); + r = manager_load_unit(s->meta.manager, name, NULL, &u); free(name); if (r < 0) @@ -1248,6 +1370,8 @@ static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) { break; } + + socket_apply_socket_options(s, cfd); } socket_enter_running(s, cfd); @@ -1273,7 +1397,7 @@ static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) { s->failure = s->failure || !success; if (s->control_command) - exec_status_fill(&s->control_command->exec_status, pid, code, status); + exec_status_exit(&s->control_command->exec_status, pid, code, status); log_debug("%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);