/*-*- Mode: C; c-basic-offset: 8 -*-*/
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
#include "name.h"
#include "socket.h"
+#include "log.h"
+
+static const NameActiveState state_table[_SOCKET_STATE_MAX] = {
+ [SOCKET_DEAD] = NAME_INACTIVE,
+ [SOCKET_START_PRE] = NAME_ACTIVATING,
+ [SOCKET_START_POST] = NAME_ACTIVATING,
+ [SOCKET_LISTENING] = NAME_ACTIVE,
+ [SOCKET_RUNNING] = NAME_ACTIVE,
+ [SOCKET_STOP_PRE] = NAME_DEACTIVATING,
+ [SOCKET_STOP_POST] = NAME_DEACTIVATING,
+ [SOCKET_MAINTAINANCE] = NAME_INACTIVE,
+};
static int socket_load(Name *n) {
Socket *s = SOCKET(n);
exec_context_defaults(&s->exec_context);
+ s->backlog = SOMAXCONN;
return name_load_fragment_and_dropin(n);
}
+static const char* listen_lookup(int type) {
+
+ if (type == SOCK_STREAM)
+ return "ListenStream";
+ else if (type == SOCK_DGRAM)
+ return "ListenDatagram";
+ else if (type == SOCK_SEQPACKET)
+ return "ListenSequentialPacket";
+
+ assert_not_reached("Unkown socket type");
+ return NULL;
+}
+
static void socket_dump(Name *n, FILE *f, const char *prefix) {
static const char* const state_table[_SOCKET_STATE_MAX] = {
SocketExecCommand c;
Socket *s = SOCKET(n);
- const char *t;
- int r;
- char *k;
+ SocketPort *p;
assert(s);
- if ((r = address_print(&n->socket.address, &k)) < 0)
- t = strerror(-r);
- else
- t = k;
-
fprintf(f,
"%sSocket State: %s\n"
- "%sAddress: %s\n",
+ "%sBindIPv6Only: %s\n"
+ "%sBacklog: %u\n",
prefix, state_table[s->state],
- prefix, t);
+ prefix, yes_no(s->bind_ipv6_only),
+ prefix, s->backlog);
- free(k);
+ LIST_FOREACH(p, s->ports) {
+
+ if (p->type == SOCKET_SOCKET) {
+ const char *t;
+ int r;
+ char *k;
+
+ if ((r = socket_address_print(&p->address, &k)) < 0)
+ t = strerror(-r);
+ else
+ t = k;
+
+ fprintf(f, "%s%s: %s\n", prefix, listen_lookup(p->address.type), k);
+ free(k);
+ } else
+ fprintf(f, "%sListenFIFO: %s\n", prefix, p->path);
+ }
exec_context_dump(&s->exec_context, f, prefix);
}
}
-static NameActiveState socket_active_state(Name *n) {
+static void socket_set_state(Socket *s, SocketState state) {
+ SocketState old_state;
+ assert(s);
- static const NameActiveState table[_SOCKET_STATE_MAX] = {
- [SOCKET_DEAD] = NAME_INACTIVE,
- [SOCKET_START_PRE] = NAME_ACTIVATING,
- [SOCKET_START_POST] = NAME_ACTIVATING,
- [SOCKET_LISTENING] = NAME_ACTIVE,
- [SOCKET_RUNNING] = NAME_ACTIVE,
- [SOCKET_STOP_PRE] = NAME_DEACTIVATING,
- [SOCKET_STOP_POST] = NAME_DEACTIVATING,
- [SOCKET_MAINTAINANCE] = NAME_INACTIVE,
- };
+ old_state = s->state;
+ s->state = state;
+
+ name_notify(NAME(s), state_table[old_state], state_table[s->state]);
+}
+
+static void close_fds(Socket *s) {
+ SocketPort *p;
+
+ assert(s);
+
+ LIST_FOREACH(p, s->ports) {
+ if (p->fd < 0)
+ continue;
- return table[SOCKET(n)->state];
+ close_nointr(p->fd);
+ p->fd = -1;
+ }
+}
+
+static int socket_start(Name *n) {
+ Socket *s = SOCKET(n);
+ SocketPort *p;
+ int r;
+
+ assert(s);
+
+ if (s->state == SOCKET_START_PRE ||
+ s->state == SOCKET_START_POST)
+ return 0;
+
+ if (s->state == SOCKET_LISTENING ||
+ s->state == SOCKET_RUNNING)
+ return -EALREADY;
+
+ if (s->state == SOCKET_STOP_PRE ||
+ s->state == SOCKET_STOP_POST)
+ return -EAGAIN;
+
+ assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
+
+ LIST_FOREACH(p, s->ports) {
+
+ assert(p->fd < 0);
+
+ if (p->type == SOCKET_SOCKET) {
+
+ if ((r = socket_address_listen(&p->address, s->backlog, s->bind_ipv6_only, &p->fd)) < 0)
+ goto rollback;
+
+ } else {
+ struct stat st;
+ assert(p->type == SOCKET_FIFO);
+
+ if (mkfifo(p->path, 0666 & ~s->exec_context.umask) < 0 && errno != EEXIST) {
+ r = -errno;
+ goto rollback;
+ }
+
+ if ((p->fd = open(p->path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
+ r = -errno;
+ goto rollback;
+ }
+
+ if (fstat(p->fd, &st) < 0) {
+ r = -errno;
+ goto rollback;
+ }
+
+ /* FIXME verify user, access mode */
+
+ if (!S_ISFIFO(st.st_mode)) {
+ r = -EEXIST;
+ goto rollback;
+ }
+ }
+ }
+
+ socket_set_state(s, SOCKET_LISTENING);
+
+ return 0;
+
+rollback:
+ close_fds(s);
+
+ socket_set_state(s, SOCKET_MAINTAINANCE);
+
+ return r;
+}
+
+static int socket_stop(Name *n) {
+ Socket *s = SOCKET(n);
+
+ assert(s);
+
+ if (s->state == SOCKET_START_PRE ||
+ s->state == SOCKET_START_POST)
+ return -EAGAIN;
+
+ if (s->state == SOCKET_DEAD ||
+ s->state == SOCKET_MAINTAINANCE)
+ return -EALREADY;
+
+ if (s->state == SOCKET_STOP_PRE ||
+ s->state == SOCKET_STOP_POST)
+ return 0;
+
+ assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
+
+ close_fds(s);
+
+ socket_set_state(s, SOCKET_DEAD);
+
+ return 0;
+}
+
+static NameActiveState socket_active_state(Name *n) {
+ assert(n);
+
+ return state_table[SOCKET(n)->state];
}
static void socket_free_hook(Name *n) {
- unsigned i;
SocketExecCommand c;
Socket *s = SOCKET(n);
+ SocketPort *p;
assert(s);
- for (i = 0; i < s->n_fds; i++)
- close_nointr(s->fds[i]);
+ while ((p = s->ports)) {
+ LIST_REMOVE(SocketPort, s->ports, p);
+
+ if (p->fd >= 0)
+ close_nointr(p->fd);
+ free(p->path);
+ free(p);
+ }
exec_context_free(&s->exec_context);
.load = socket_load,
.dump = socket_dump,
- .start = NULL,
- .stop = NULL,
+ .start = socket_start,
+ .stop = socket_stop,
.reload = NULL,
.active_state = socket_active_state,
~ianmdlvl / elogind.git / blobdiff