}
}
+struct smbd_open_socket;
+
+struct smbd_parent_context {
+ bool interactive;
+
+ /* the list of listening sockets */
+ struct smbd_open_socket *sockets;
+};
+
+struct smbd_open_socket {
+ struct smbd_open_socket *prev, *next;
+ struct smbd_parent_context *parent;
+ int fd;
+ struct tevent_fd *fde;
+};
+
+static void smbd_open_socket_close_fn(struct tevent_context *ev,
+ struct tevent_fd *fde,
+ int fd,
+ void *private_data)
+{
+ /* this might be the socket_wrapper swrap_close() */
+ close(fd);
+}
+
+static void smbd_accept_connection(struct tevent_context *ev,
+ struct tevent_fd *fde,
+ uint16_t flags,
+ void *private_data)
+{
+ struct smbd_open_socket *s = talloc_get_type_abort(private_data,
+ struct smbd_open_socket);
+ struct sockaddr_storage addr;
+ socklen_t in_addrlen = sizeof(addr);
+ pid_t pid = 0;
+
+ smbd_set_server_fd(accept(s->fd,(struct sockaddr *)&addr,&in_addrlen));
+
+ if (smbd_server_fd() == -1 && errno == EINTR)
+ return;
+
+ if (smbd_server_fd() == -1) {
+ DEBUG(0,("open_sockets_smbd: accept: %s\n",
+ strerror(errno)));
+ return;
+ }
+
+ if (s->parent->interactive) {
+ smbd_process();
+ exit_server_cleanly("end of interactive mode");
+ return;
+ }
+
+ if (!allowable_number_of_smbd_processes()) {
+ close(smbd_server_fd());
+ smbd_set_server_fd(-1);
+ return;
+ }
+
+ pid = sys_fork();
+ if (pid == 0) {
+ /* Child code ... */
+ am_parent = 0;
+
+ /* Stop zombies, the parent explicitly handles
+ * them, counting worker smbds. */
+ CatchChild();
+
+ /* close our standard file
+ descriptors */
+ close_low_fds(False);
+
+ TALLOC_FREE(s->parent);
+ s = NULL;
+
+ if (!reinit_after_fork(
+ smbd_messaging_context(),
+ smbd_event_context(),
+ true)) {
+ DEBUG(0,("reinit_after_fork() failed\n"));
+ smb_panic("reinit_after_fork() failed");
+ }
+
+ smbd_setup_sig_term_handler();
+ smbd_setup_sig_hup_handler();
+
+ smbd_process();
+ exit_server_cleanly("end of child");
+ return;
+ } else if (pid < 0) {
+ DEBUG(0,("smbd_accept_connection: sys_fork() failed: %s\n",
+ strerror(errno)));
+ }
+
+ /* The parent doesn't need this socket */
+ close(smbd_server_fd());
+
+ /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
+ Clear the closed fd info out of server_fd --
+ and more importantly, out of client_fd in
+ util_sock.c, to avoid a possible
+ getpeername failure if we reopen the logs
+ and use %I in the filename.
+ */
+
+ smbd_set_server_fd(-1);
+
+ if (pid != 0) {
+ add_child_pid(pid);
+ }
+
+ /* Force parent to check log size after
+ * spawning child. Fix from
+ * klausr@ITAP.Physik.Uni-Stuttgart.De. The
+ * parent smbd will log to logserver.smb. It
+ * writes only two messages for each child
+ * started/finished. But each child writes,
+ * say, 50 messages also in logserver.smb,
+ * begining with the debug_count of the
+ * parent, before the child opens its own log
+ * file logserver.client. In a worst case
+ * scenario the size of logserver.smb would be
+ * checked after about 50*50=2500 messages
+ * (ca. 100kb).
+ * */
+ force_check_log_size();
+}
+
+bool smbd_open_one_socket(struct smbd_parent_context *parent,
+ const struct sockaddr_storage *ifss,
+ uint16_t port)
+{
+ struct smbd_open_socket *s;
+
+ s = talloc(parent, struct smbd_open_socket);
+ if (!s) {
+ return false;
+ }
+
+ s->parent = parent;
+ s->fd = open_socket_in(SOCK_STREAM,
+ port,
+ parent->sockets == NULL ? 0 : 2,
+ ifss,
+ true);
+ if (s->fd == -1) {
+ DEBUG(0,("smbd_open_once_socket: open_socket_in: "
+ "%s\n", strerror(errno)));
+ close(s->fd);
+ TALLOC_FREE(s);
+ return false;
+ }
+
+ /* ready to listen */
+ set_socket_options(s->fd, "SO_KEEPALIVE");
+ set_socket_options(s->fd, lp_socket_options());
+
+ /* Set server socket to
+ * non-blocking for the accept. */
+ set_blocking(s->fd, False);
+
+ if (listen(s->fd, SMBD_LISTEN_BACKLOG) == -1) {
+ DEBUG(0,("open_sockets_smbd: listen: "
+ "%s\n", strerror(errno)));
+ close(s->fd);
+ TALLOC_FREE(s);
+ return false;
+ }
+
+ s->fde = tevent_add_fd(smbd_event_context(),
+ s,
+ s->fd, TEVENT_FD_READ,
+ smbd_accept_connection,
+ s);
+ if (!s->fde) {
+ DEBUG(0,("open_sockets_smbd: "
+ "tevent_add_fd: %s\n",
+ strerror(errno)));
+ close(s->fd);
+ TALLOC_FREE(s);
+ return false;
+ }
+ tevent_fd_set_close_fn(s->fde, smbd_open_socket_close_fn);
+
+ DLIST_ADD_END(parent->sockets, s, struct smbd_open_socket *);
+
+ return true;
+}
+
/****************************************************************************
Open the socket communication.
****************************************************************************/
-static bool open_sockets_smbd(bool interactive, const char *smb_ports)
+static bool open_sockets_smbd(struct smbd_parent_context *parent,
+ const char *smb_ports)
{
int num_interfaces = iface_count();
- int num_sockets = 0;
- int fd_listenset[FD_SETSIZE];
- fd_set listen_set;
- int s;
- int maxfd = 0;
int i;
char *ports;
- TALLOC_CTX *dns_ctx = NULL;
unsigned dns_port = 0;
#ifdef HAVE_ATEXIT
atexit(killkids);
#endif
- dns_ctx = talloc_new(NULL);
-
/* Stop zombies */
smbd_setup_sig_chld_handler();
- FD_ZERO(&listen_set);
-
/* use a reasonable default set of ports - listing on 445 and 139 */
if (!smb_ports) {
ports = lp_smb_ports();
if (!ports || !*ports) {
- ports = smb_xstrdup(SMB_PORTS);
+ ports = talloc_strdup(talloc_tos(), SMB_PORTS);
} else {
- ports = smb_xstrdup(ports);
+ ports = talloc_strdup(talloc_tos(), ports);
}
} else {
- ports = smb_xstrdup(smb_ports);
+ ports = talloc_strdup(talloc_tos(), smb_ports);
}
if (lp_interfaces() && lp_bind_interfaces_only()) {
/* Now open a listen socket for each of the
interfaces. */
for(i = 0; i < num_interfaces; i++) {
- TALLOC_CTX *frame = NULL;
const struct sockaddr_storage *ifss =
iface_n_sockaddr_storage(i);
char *tok;
continue;
}
- frame = talloc_stackframe();
for (ptr=ports;
- next_token_talloc(frame,&ptr, &tok, " \t,");) {
+ next_token_talloc(talloc_tos(),&ptr, &tok, " \t,");) {
unsigned port = atoi(tok);
if (port == 0 || port > 0xffff) {
continue;
}
- /* Keep the first port for mDNS service
- * registration.
- */
- if (dns_port == 0) {
- dns_port = port;
- }
-
- s = fd_listenset[num_sockets] =
- open_socket_in(SOCK_STREAM,
- port,
- num_sockets == 0 ? 0 : 2,
- ifss,
- true);
- if(s == -1) {
- continue;
- }
-
- /* ready to listen */
- set_socket_options(s,"SO_KEEPALIVE");
- set_socket_options(s,lp_socket_options());
-
- /* Set server socket to
- * non-blocking for the accept. */
- set_blocking(s,False);
-
- if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
- DEBUG(0,("open_sockets_smbd: listen: "
- "%s\n", strerror(errno)));
- close(s);
- TALLOC_FREE(frame);
- return False;
- }
- FD_SET(s,&listen_set);
- maxfd = MAX( maxfd, s);
-
- num_sockets++;
- if (num_sockets >= FD_SETSIZE) {
- DEBUG(0,("open_sockets_smbd: Too "
- "many sockets to bind to\n"));
- TALLOC_FREE(frame);
- return False;
+ if (!smbd_open_one_socket(parent, ifss, port)) {
+ return false;
}
}
- TALLOC_FREE(frame);
}
} else {
/* Just bind to 0.0.0.0 - accept connections
from anywhere. */
- TALLOC_CTX *frame = talloc_stackframe();
char *tok;
const char *ptr;
const char *sock_addr = lp_socket_address();
}
for (sock_ptr=sock_addr;
- next_token_talloc(frame, &sock_ptr, &sock_tok, " \t,"); ) {
- for (ptr=ports; next_token_talloc(frame, &ptr, &tok, " \t,"); ) {
+ next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,"); ) {
+ for (ptr=ports; next_token_talloc(talloc_tos(), &ptr, &tok, " \t,"); ) {
struct sockaddr_storage ss;
unsigned port = atoi(tok);
continue;
}
- s = open_socket_in(SOCK_STREAM,
- port,
- num_sockets == 0 ? 0 : 2,
- &ss,
- true);
- if (s == -1) {
- continue;
- }
-
- /* ready to listen */
- set_socket_options(s,"SO_KEEPALIVE");
- set_socket_options(s,lp_socket_options());
-
- /* Set server socket to non-blocking
- * for the accept. */
- set_blocking(s,False);
-
- if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
- DEBUG(0,("open_sockets_smbd: "
- "listen: %s\n",
- strerror(errno)));
- close(s);
- TALLOC_FREE(frame);
- return False;
- }
-
- fd_listenset[num_sockets] = s;
- FD_SET(s,&listen_set);
- maxfd = MAX( maxfd, s);
-
- num_sockets++;
-
- if (num_sockets >= FD_SETSIZE) {
- DEBUG(0,("open_sockets_smbd: Too "
- "many sockets to bind to\n"));
- TALLOC_FREE(frame);
- return False;
+ if (!smbd_open_one_socket(parent, &ss, port)) {
+ return false;
}
}
}
- TALLOC_FREE(frame);
}
- SAFE_FREE(ports);
-
- if (num_sockets == 0) {
+ if (parent->sockets == NULL) {
DEBUG(0,("open_sockets_smbd: No "
"sockets available to bind to.\n"));
return false;
if (dns_port != 0) {
smbd_setup_mdns_registration(smbd_event_context(),
- dns_ctx, dns_port);
+ parent, dns_port);
}
+ return true;
+}
+
+static void smbd_parent_loop(struct smbd_parent_context *parent)
+{
/* now accept incoming connections - forking a new process
for each incoming connection */
DEBUG(2,("waiting for a connection\n"));
while (1) {
struct timeval now, idle_timeout;
fd_set r_fds, w_fds;
+ int maxfd = 0;
int num;
+ TALLOC_CTX *frame = talloc_stackframe();
if (run_events(smbd_event_context(), 0, NULL, NULL)) {
+ TALLOC_FREE(frame);
continue;
}
idle_timeout = timeval_zero();
- memcpy((char *)&r_fds, (char *)&listen_set,
- sizeof(listen_set));
FD_ZERO(&w_fds);
+ FD_ZERO(&r_fds);
GetTimeOfDay(&now);
event_add_to_select_args(smbd_event_context(), &now,
timeval_is_zero(&idle_timeout) ?
NULL : &idle_timeout);
+ /* check if we need to reload services */
+ check_reload(time(NULL));
+
if (run_events(smbd_event_context(), num, &r_fds, &w_fds)) {
+ TALLOC_FREE(frame);
continue;
}
if (num == 0 && count_all_current_connections() == 0) {
exit_server_cleanly("idle timeout");
}
-
- /* check if we need to reload services */
- check_reload(time(NULL));
-
- /* Find the sockets that are read-ready -
- accept on these. */
- for( ; num > 0; num--) {
- struct sockaddr addr;
- socklen_t in_addrlen = sizeof(addr);
- pid_t child = 0;
-
- s = -1;
- for(i = 0; i < num_sockets; i++) {
- if(FD_ISSET(fd_listenset[i],&r_fds)) {
- s = fd_listenset[i];
- /* Clear this so we don't look
- at it again. */
- FD_CLR(fd_listenset[i],&r_fds);
- break;
- }
- }
-
- smbd_set_server_fd(accept(s,&addr,&in_addrlen));
-
- if (smbd_server_fd() == -1 && errno == EINTR)
- continue;
-
- if (smbd_server_fd() == -1) {
- DEBUG(2,("open_sockets_smbd: accept: %s\n",
- strerror(errno)));
- continue;
- }
-
- if (interactive)
- return True;
-
- if (allowable_number_of_smbd_processes() &&
- ((child = sys_fork())==0)) {
- /* Child code ... */
-
- TALLOC_FREE(dns_ctx);
-
- /* Stop zombies, the parent explicitly handles
- * them, counting worker smbds. */
- CatchChild();
-
- /* close the listening socket(s) */
- for(i = 0; i < num_sockets; i++)
- close(fd_listenset[i]);
-
- /* close our standard file
- descriptors */
- close_low_fds(False);
- am_parent = 0;
-
- if (!reinit_after_fork(
- smbd_messaging_context(),
- smbd_event_context(),
- true)) {
- DEBUG(0,("reinit_after_fork() failed\n"));
- smb_panic("reinit_after_fork() failed");
- }
-
- smbd_setup_sig_term_handler();
- smbd_setup_sig_hup_handler();
-
- return True;
- }
- /* The parent doesn't need this socket */
- close(smbd_server_fd());
-
- /* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
- Clear the closed fd info out of server_fd --
- and more importantly, out of client_fd in
- util_sock.c, to avoid a possible
- getpeername failure if we reopen the logs
- and use %I in the filename.
- */
-
- smbd_set_server_fd(-1);
-
- if (child != 0) {
- add_child_pid(child);
- }
-
- /* Force parent to check log size after
- * spawning child. Fix from
- * klausr@ITAP.Physik.Uni-Stuttgart.De. The
- * parent smbd will log to logserver.smb. It
- * writes only two messages for each child
- * started/finished. But each child writes,
- * say, 50 messages also in logserver.smb,
- * begining with the debug_count of the
- * parent, before the child opens its own log
- * file logserver.client. In a worst case
- * scenario the size of logserver.smb would be
- * checked after about 50*50=2500 messages
- * (ca. 100kb).
- * */
- force_check_log_size();
-
- } /* end for num */
+ TALLOC_FREE(frame);
} /* end while 1 */
/* NOTREACHED return True; */
POPT_COMMON_DYNCONFIG
POPT_TABLEEND
};
+ struct smbd_parent_context *parent = NULL;
TALLOC_CTX *frame = talloc_stackframe(); /* Setup tos. */
smbd_init_globals();
return(0);
}
- if (!open_sockets_smbd(interactive, ports))
- exit(1);
+ parent = talloc_zero(smbd_event_context(), struct smbd_parent_context);
+ if (!parent) {
+ exit_server("talloc(struct smbd_parent_context) failed");
+ }
+ parent->interactive = interactive;
+
+ if (!open_sockets_smbd(parent, ports))
+ exit_server("open_sockets_smbd() failed");
TALLOC_FREE(frame);
- smbd_process();
+ smbd_parent_loop(parent);
exit_server_cleanly(NULL);
return(0);
git.samba.org / metze / samba / wip.git / commitdiff