843 lines
21 KiB
Diff
843 lines
21 KiB
Diff
diff -up ypserv-2.19/ypserv/ypserv.8.in.iface ypserv-2.19/ypserv/ypserv.8.in
|
|
--- ypserv-2.19/ypserv/ypserv.8.in.iface 2003-01-17 22:57:35.000000000 +0100
|
|
+++ ypserv-2.19/ypserv/ypserv.8.in 2008-09-25 13:09:39.000000000 +0200
|
|
@@ -12,6 +12,9 @@ ypserv \- NIS server
|
|
[
|
|
.B \-p port
|
|
]
|
|
+[
|
|
+.B \-i iface
|
|
+]
|
|
.LP
|
|
.SH DESCRIPTION
|
|
.IX "ypserv" "" "\fLypserv\fP \(em NIS server process"
|
|
@@ -59,12 +62,23 @@ Causes the server to run in debugging mo
|
|
reports only errors (access violations, dbm failures)
|
|
using the syslog(3) facility. In debug mode, the server does not
|
|
background itself and prints extra status messages to stderr for
|
|
-each request that it revceives.
|
|
+each request that it receives.
|
|
.B path
|
|
is an optionally parameter.
|
|
.B ypserv
|
|
is using this directory instead of @YPMAPDIR@
|
|
.TP
|
|
+.B "\-i" "--iface" "iface"
|
|
+Causes the server to only be available via interface
|
|
+.B iface
|
|
+Use this if you want ypserv to only provide service on a
|
|
+particular network interface.
|
|
+.B iface
|
|
+is a required parameter
|
|
+.B ypserv
|
|
+will be using that interface instead of all the available
|
|
+network interfaces.
|
|
+.TP
|
|
.B "\-p" "--port" port
|
|
.B ypserv
|
|
will bind itself to this port.
|
|
diff -up ypserv-2.19/ypserv/ypserv.c.iface ypserv-2.19/ypserv/ypserv.c
|
|
--- ypserv-2.19/ypserv/ypserv.c.iface 2006-01-10 20:22:20.000000000 +0100
|
|
+++ ypserv-2.19/ypserv/ypserv.c 2008-09-25 13:09:39.000000000 +0200
|
|
@@ -33,11 +33,15 @@
|
|
#include <getopt.h>
|
|
#endif
|
|
#include <sys/file.h>
|
|
+#include <sys/ioctl.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/wait.h>
|
|
#include <sys/socket.h>
|
|
#include <rpc/rpc.h>
|
|
#include <rpc/pmap_clnt.h>
|
|
+#include <linux/if.h>
|
|
+#include <netinet/in.h>
|
|
+#include <arpa/inet.h>
|
|
#if defined(HAVE_RPC_SVC_SOC_H)
|
|
#include <rpc/svc_soc.h> /* for svcudp_create() */
|
|
#endif /* HAVE_RPC_SVC_SOC_H */
|
|
@@ -63,6 +67,8 @@
|
|
#define YPOLDVERS 1
|
|
#endif
|
|
|
|
+struct in_addr my_iface_num = {INADDR_ANY};
|
|
+
|
|
static char *path_ypdb = YPMAPDIR;
|
|
|
|
static void
|
|
@@ -95,7 +101,25 @@ ypprog_2 (struct svc_req *rqstp, registe
|
|
bool_t retval;
|
|
xdrproc_t _xdr_argument, _xdr_result;
|
|
bool_t (*local) (char *, void *, struct svc_req *);
|
|
+ struct sockaddr_in *rqhost;
|
|
+ struct in_addr rqnetwork;
|
|
|
|
+ if (my_iface_num.s_addr != INADDR_ANY) {
|
|
+ /*
|
|
+ * If we are suppost only listen on one interface
|
|
+ * make this request comes from that inteface
|
|
+ * otherwise ignore it.
|
|
+ */
|
|
+ rqhost = svc_getcaller (rqstp->rq_xprt);
|
|
+ rqnetwork.s_addr = inet_netof(rqhost->sin_addr);
|
|
+ if (rqnetwork.s_addr != inet_netof(my_iface_num)) {
|
|
+ if (debug_flag) {
|
|
+ log_msg("Ignoring request from %s: wrong network\n",
|
|
+ inet_ntoa(rqhost->sin_addr));
|
|
+ }
|
|
+ return;
|
|
+ }
|
|
+ }
|
|
switch (rqstp->rq_proc)
|
|
{
|
|
case YPPROC_NULL:
|
|
@@ -245,6 +269,36 @@ mysvc_run (void)
|
|
}
|
|
#endif
|
|
|
|
+static void
|
|
+get_inet_for_iface (char *iface, uint32_t *iface_num)
|
|
+{
|
|
+ struct ifreq ifr;
|
|
+ struct in_addr inaddr;
|
|
+ int fd;
|
|
+
|
|
+ *iface_num = INADDR_ANY;
|
|
+
|
|
+ fd = socket (AF_INET, SOCK_DGRAM, 0);
|
|
+ if(fd < 0)
|
|
+ return;
|
|
+
|
|
+ memset(&ifr, '\0', sizeof(ifr));
|
|
+ strncpy (ifr.ifr_name, iface,
|
|
+ IFNAMSIZ > strlen (iface) ? strlen (iface) : IFNAMSIZ);
|
|
+
|
|
+ if (ioctl (fd, SIOCGIFADDR, &ifr) < 0)
|
|
+ {
|
|
+ log_msg("ifr_name error: %d\n", errno);
|
|
+ close (fd);
|
|
+ return;
|
|
+ }
|
|
+ memcpy(&inaddr, &ifr.ifr_netmask.sa_data[2], sizeof(struct in_addr));
|
|
+ *iface_num = inaddr.s_addr;
|
|
+
|
|
+ close (fd);
|
|
+}
|
|
+
|
|
+
|
|
/* Create a pidfile on startup */
|
|
static void
|
|
create_pidfile (void)
|
|
@@ -394,7 +448,7 @@ sig_child (int sig UNUSED)
|
|
static void
|
|
Usage (int exitcode)
|
|
{
|
|
- fputs ("usage: ypserv [-d [path]] [-p port]\n", stderr);
|
|
+ fputs ("usage: ypserv [-d [path]] [-p port] [-i interface]\n", stderr);
|
|
fputs (" ypserv --version\n", stderr);
|
|
|
|
exit (exitcode);
|
|
@@ -405,6 +459,7 @@ main (int argc, char **argv)
|
|
{
|
|
SVCXPRT *transp;
|
|
int my_port = -1, my_socket, result;
|
|
+ char *my_iface = NULL;
|
|
struct sockaddr_in s_in;
|
|
|
|
openlog ("ypserv", LOG_PID, LOG_DAEMON);
|
|
@@ -417,12 +472,13 @@ main (int argc, char **argv)
|
|
{"version", no_argument, NULL, 'v'},
|
|
{"debug", no_argument, NULL, 'd'},
|
|
{"port", required_argument, NULL, 'p'},
|
|
+ {"iface", required_argument, NULL, 'i'},
|
|
{"usage", no_argument, NULL, 'u'},
|
|
{"help", no_argument, NULL, 'h'},
|
|
{NULL, 0, NULL, '\0'}
|
|
};
|
|
|
|
- c = getopt_long (argc, argv, "vdp:buh", long_options, &option_index);
|
|
+ c = getopt_long (argc, argv, "vdp:i:buh", long_options, &option_index);
|
|
if (c == -1)
|
|
break;
|
|
switch (c)
|
|
@@ -439,6 +495,11 @@ main (int argc, char **argv)
|
|
if (debug_flag)
|
|
log_msg ("Using port %d\n", my_port);
|
|
break;
|
|
+ case 'i':
|
|
+ my_iface = optarg;
|
|
+ if (debug_flag)
|
|
+ log_msg ("Using interface %s\n", my_iface);
|
|
+ break;
|
|
case 'u':
|
|
case 'h':
|
|
Usage (0);
|
|
@@ -545,6 +606,11 @@ main (int argc, char **argv)
|
|
pmap_unset (YPPROG, YPVERS);
|
|
pmap_unset (YPPROG, YPOLDVERS);
|
|
|
|
+ if (my_iface)
|
|
+ {
|
|
+ get_inet_for_iface (my_iface, &my_iface_num.s_addr);
|
|
+ }
|
|
+
|
|
if (my_port >= 0)
|
|
{
|
|
my_socket = socket (AF_INET, SOCK_DGRAM, 0);
|
|
@@ -556,7 +622,7 @@ main (int argc, char **argv)
|
|
|
|
memset ((char *) &s_in, 0, sizeof (s_in));
|
|
s_in.sin_family = AF_INET;
|
|
- s_in.sin_addr.s_addr = htonl (INADDR_ANY);
|
|
+ s_in.sin_addr.s_addr = htonl (my_iface_num.s_addr);
|
|
s_in.sin_port = htons (my_port);
|
|
|
|
result = bind (my_socket, (struct sockaddr *) &s_in,
|
|
@@ -601,7 +667,7 @@ main (int argc, char **argv)
|
|
|
|
memset (&s_in, 0, sizeof (s_in));
|
|
s_in.sin_family = AF_INET;
|
|
- s_in.sin_addr.s_addr = htonl (INADDR_ANY);
|
|
+ s_in.sin_addr.s_addr = htonl (my_iface_num.s_addr);
|
|
s_in.sin_port = htons (my_port);
|
|
|
|
result = bind (my_socket, (struct sockaddr *) &s_in,
|
|
diff -up /dev/null ypserv-2.19/ypserv/ypserv.c.iface_binding
|
|
--- /dev/null 2008-09-23 12:26:29.886003537 +0200
|
|
+++ ypserv-2.19/ypserv/ypserv.c.iface_binding 2008-09-25 13:09:39.000000000 +0200
|
|
@@ -0,0 +1,635 @@
|
|
+/* Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Thorsten Kukuk
|
|
+ Author: Thorsten Kukuk <kukuk@suse.de>
|
|
+
|
|
+ The YP Server is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU General Public License
|
|
+ version 2 as published by the Free Software Foundation.
|
|
+
|
|
+ The YP Server is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU General Public
|
|
+ License along with the YP Server; see the file COPYING. If
|
|
+ not, write to the Free Software Foundation, Inc., 675 Mass Ave,
|
|
+ Cambridge, MA 02139, USA. */
|
|
+
|
|
+#define _GNU_SOURCE
|
|
+
|
|
+#if defined(HAVE_CONFIG_H)
|
|
+#include "config.h"
|
|
+#endif
|
|
+
|
|
+#include <stdio.h>
|
|
+#include <errno.h>
|
|
+#include <stdlib.h>
|
|
+#include <string.h>
|
|
+#include <memory.h>
|
|
+#include <unistd.h>
|
|
+#include <syslog.h>
|
|
+#include <signal.h>
|
|
+#include <getopt.h>
|
|
+#include <poll.h>
|
|
+#include <sys/file.h>
|
|
+#include <sys/stat.h>
|
|
+#include <sys/wait.h>
|
|
+#include <sys/socket.h>
|
|
+#include <rpc/rpc.h>
|
|
+#include <rpc/pmap_clnt.h>
|
|
+
|
|
+#include "yp.h"
|
|
+#include "access.h"
|
|
+#include "log_msg.h"
|
|
+#include "ypserv_conf.h"
|
|
+
|
|
+#ifdef HAVE_PATHS_H
|
|
+#include <paths.h>
|
|
+#endif
|
|
+#ifndef _PATH_VARRUN
|
|
+#define _PATH_VARRUN "/etc/"
|
|
+#endif
|
|
+#define _YPSERV_PIDFILE _PATH_VARRUN"ypserv.pid"
|
|
+
|
|
+#ifndef YPOLDVERS
|
|
+#define YPOLDVERS 1
|
|
+#endif
|
|
+
|
|
+volatile int children = 0;
|
|
+int forked = 0;
|
|
+
|
|
+static char *path_ypdb = YPMAPDIR;
|
|
+
|
|
+static void
|
|
+ypprog_2 (struct svc_req *rqstp, register SVCXPRT * transp)
|
|
+{
|
|
+ union {
|
|
+ domainname ypproc_domain_2_arg;
|
|
+ domainname ypproc_domain_nonack_2_arg;
|
|
+ ypreq_key ypproc_match_2_arg;
|
|
+ ypreq_nokey ypproc_first_2_arg;
|
|
+ ypreq_key ypproc_next_2_arg;
|
|
+ ypreq_xfr ypproc_xfr_2_arg;
|
|
+ ypreq_nokey ypproc_all_2_arg;
|
|
+ ypreq_nokey ypproc_master_2_arg;
|
|
+ ypreq_nokey ypproc_order_2_arg;
|
|
+ domainname ypproc_maplist_2_arg;
|
|
+ } argument;
|
|
+ union {
|
|
+ bool_t ypproc_domain_2_res;
|
|
+ bool_t ypproc_domain_nonack_2_res;
|
|
+ ypresp_val ypproc_match_2_res;
|
|
+ ypresp_key_val ypproc_first_2_res;
|
|
+ ypresp_key_val ypproc_next_2_res;
|
|
+ ypresp_xfr ypproc_xfr_2_res;
|
|
+ ypresp_all ypproc_all_2_res;
|
|
+ ypresp_master ypproc_master_2_res;
|
|
+ ypresp_order ypproc_order_2_res;
|
|
+ ypresp_maplist ypproc_maplist_2_res;
|
|
+ } result;
|
|
+ bool_t retval;
|
|
+ xdrproc_t _xdr_argument, _xdr_result;
|
|
+ bool_t (*local) (char *, void *, struct svc_req *);
|
|
+
|
|
+ switch (rqstp->rq_proc)
|
|
+ {
|
|
+ case YPPROC_NULL:
|
|
+ _xdr_argument = (xdrproc_t) xdr_void;
|
|
+ _xdr_result = (xdrproc_t) xdr_void;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_null_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_DOMAIN:
|
|
+ _xdr_argument = (xdrproc_t) xdr_domainname;
|
|
+ _xdr_result = (xdrproc_t) xdr_bool;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_domain_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_DOMAIN_NONACK:
|
|
+ _xdr_argument = (xdrproc_t) xdr_domainname;
|
|
+ _xdr_result = (xdrproc_t) xdr_bool;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *))
|
|
+ ypproc_domain_nonack_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_MATCH:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_key;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_val;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_match_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_FIRST:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_key_val;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_first_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_NEXT:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_key;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_key_val;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_next_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_XFR:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_xfr;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_xfr;
|
|
+ local = (bool_t (*)(char *, void *, struct svc_req *)) ypproc_xfr_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_CLEAR:
|
|
+ _xdr_argument = (xdrproc_t) xdr_void;
|
|
+ _xdr_result = (xdrproc_t) xdr_void;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_clear_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_ALL:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_all;
|
|
+ local = (bool_t (*)(char *, void *, struct svc_req *)) ypproc_all_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_MASTER:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_master;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_master_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_ORDER:
|
|
+ _xdr_argument = (xdrproc_t) xdr_ypreq_nokey;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_order;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_order_2_svc;
|
|
+ break;
|
|
+
|
|
+ case YPPROC_MAPLIST:
|
|
+ _xdr_argument = (xdrproc_t) xdr_domainname;
|
|
+ _xdr_result = (xdrproc_t) xdr_ypresp_maplist;
|
|
+ local =
|
|
+ (bool_t (*)(char *, void *, struct svc_req *)) ypproc_maplist_2_svc;
|
|
+ break;
|
|
+
|
|
+ default:
|
|
+ svcerr_noproc (transp);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ memset ((char *) &argument, 0, sizeof (argument));
|
|
+ if (!svc_getargs (transp, _xdr_argument, (caddr_t) &argument))
|
|
+ {
|
|
+ svcerr_decode (transp);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ retval = (bool_t) (*local) ((char *) &argument, (void *) &result, rqstp);
|
|
+ if (retval > 0 && !svc_sendreply (transp, _xdr_result, (char *) &result))
|
|
+ svcerr_systemerr (transp);
|
|
+
|
|
+ if (!svc_freeargs (transp, _xdr_argument, (caddr_t) &argument))
|
|
+ {
|
|
+ fprintf (stderr, "unable to free arguments");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ if (!ypprog_2_freeresult (transp, _xdr_result, (caddr_t) &result))
|
|
+ fprintf (stderr, "unable to free results");
|
|
+
|
|
+ return;
|
|
+}
|
|
+
|
|
+static void
|
|
+ypserv_svc_run (void)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ for (;;)
|
|
+ {
|
|
+ struct pollfd *my_pollfd;
|
|
+
|
|
+ if (svc_max_pollfd == 0 && svc_pollfd == NULL)
|
|
+ return;
|
|
+
|
|
+ my_pollfd = malloc (sizeof (struct pollfd) * svc_max_pollfd);
|
|
+ for (i = 0; i < svc_max_pollfd; ++i)
|
|
+ {
|
|
+ my_pollfd[i].fd = svc_pollfd[i].fd;
|
|
+ my_pollfd[i].events = svc_pollfd[i].events;
|
|
+ my_pollfd[i].revents = 0;
|
|
+ }
|
|
+
|
|
+ switch (i = poll (my_pollfd, svc_max_pollfd, -1))
|
|
+ {
|
|
+ case -1:
|
|
+ free (my_pollfd);
|
|
+ if (errno == EINTR)
|
|
+ continue;
|
|
+ syslog (LOG_ERR, "svc_run: - poll failed: %m");
|
|
+ return;
|
|
+ case 0:
|
|
+ free (my_pollfd);
|
|
+ continue;
|
|
+ default:
|
|
+ svc_getreq_poll (my_pollfd, i);
|
|
+ free (my_pollfd);
|
|
+ if (forked)
|
|
+ _exit (0);
|
|
+ }
|
|
+ }
|
|
+}
|
|
+
|
|
+
|
|
+/* Create a pidfile on startup */
|
|
+static void
|
|
+create_pidfile (void)
|
|
+{
|
|
+ int fd, left, written, flags;
|
|
+ pid_t pid;
|
|
+ char pbuf[10], *ptr;
|
|
+ struct flock lock;
|
|
+
|
|
+ fd = open (_YPSERV_PIDFILE, O_CREAT | O_RDWR,
|
|
+ S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
|
|
+ if (fd < 0)
|
|
+ {
|
|
+ log_msg ("cannot create pidfile %s", _YPSERV_PIDFILE);
|
|
+ if (debug_flag)
|
|
+ log_msg ("\n");
|
|
+ }
|
|
+
|
|
+ /* Make sure file gets correctly closed when process finished. */
|
|
+ flags = fcntl (fd, F_GETFD, 0);
|
|
+ if (flags == -1)
|
|
+ {
|
|
+ /* Cannot get file flags. */
|
|
+ close (fd);
|
|
+ return;
|
|
+ }
|
|
+ flags |= FD_CLOEXEC; /* Close on exit. */
|
|
+ if (fcntl (fd, F_SETFD, flags) < 0)
|
|
+ {
|
|
+ /* Cannot set new flags. */
|
|
+ close (fd);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ lock.l_type = F_WRLCK;
|
|
+ lock.l_start = 0;
|
|
+ lock.l_whence = SEEK_SET;
|
|
+ lock.l_len = 0;
|
|
+
|
|
+ /* Is the pidfile locked by another ypserv ? */
|
|
+ if (fcntl (fd, F_GETLK, &lock) < 0)
|
|
+ {
|
|
+ log_msg ("fcntl error");
|
|
+ if (debug_flag)
|
|
+ log_msg ("\n");
|
|
+ }
|
|
+ if (lock.l_type == F_UNLCK)
|
|
+ pid = 0; /* false, not locked by another proc */
|
|
+ else
|
|
+ pid = lock.l_pid; /* true, return pid of lock owner */
|
|
+
|
|
+ if (0 != pid)
|
|
+ {
|
|
+ log_msg ("ypserv already running (pid %d) - exiting", pid);
|
|
+ if (debug_flag)
|
|
+ log_msg ("\n");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ /* write lock */
|
|
+ lock.l_type = F_WRLCK;
|
|
+ lock.l_start = 0;
|
|
+ lock.l_whence = SEEK_SET;
|
|
+ lock.l_len = 0;
|
|
+ if (0 != fcntl (fd, F_SETLK, &lock))
|
|
+ log_msg ("cannot lock pidfile");
|
|
+ sprintf (pbuf, "%ld\n", (long) getpid ());
|
|
+ left = strlen (pbuf);
|
|
+ ptr = pbuf;
|
|
+ while (left > 0)
|
|
+ {
|
|
+ if ((written = write (fd, ptr, left)) <= 0)
|
|
+ return; /* error */
|
|
+ left -= written;
|
|
+ ptr += written;
|
|
+ }
|
|
+
|
|
+ return;
|
|
+}
|
|
+
|
|
+/* Clean up if we quit the program. */
|
|
+static void
|
|
+sig_quit (int sig __attribute__ ((unused)))
|
|
+{
|
|
+ pmap_unset (YPPROG, YPVERS);
|
|
+ pmap_unset (YPPROG, YPOLDVERS);
|
|
+ unlink (_YPSERV_PIDFILE);
|
|
+
|
|
+ exit (0);
|
|
+}
|
|
+
|
|
+/* Reload securenets and config file */
|
|
+static void
|
|
+sig_hup (int sig __attribute__ ((unused)))
|
|
+{
|
|
+ int old_cached_filehandles = cached_filehandles;
|
|
+
|
|
+ load_securenets ();
|
|
+ load_config ();
|
|
+ /* Don't allow to decrease the number of max. cached files with
|
|
+ SIGHUP. */
|
|
+ if (cached_filehandles < old_cached_filehandles)
|
|
+ cached_filehandles = old_cached_filehandles;
|
|
+}
|
|
+
|
|
+/* Clean up after child processes signal their termination. */
|
|
+static void
|
|
+sig_child (int sig)
|
|
+{
|
|
+ int st;
|
|
+ pid_t pid;
|
|
+
|
|
+ if (debug_flag)
|
|
+ log_msg ("sig_child: got signal %i", sig);
|
|
+
|
|
+
|
|
+ /* Clear all childs */
|
|
+ while ((pid = waitpid (-1, &st, WNOHANG)) > 0)
|
|
+ {
|
|
+ if (debug_flag)
|
|
+ log_msg ("pid=%d", pid);
|
|
+ --children;
|
|
+ }
|
|
+
|
|
+ if (children < 0)
|
|
+ log_msg ("children is lower 0 (%i)!", children);
|
|
+ else if (debug_flag)
|
|
+ log_msg ("children = %i", children);
|
|
+}
|
|
+
|
|
+
|
|
+static void
|
|
+Usage (int exitcode)
|
|
+{
|
|
+ fputs ("usage: ypserv [-d [path]] [-p port]\n", stderr);
|
|
+ fputs (" ypserv --version\n", stderr);
|
|
+
|
|
+ exit (exitcode);
|
|
+}
|
|
+
|
|
+int
|
|
+main (int argc, char **argv)
|
|
+{
|
|
+ SVCXPRT *transp;
|
|
+ int my_port = -1, my_socket, result;
|
|
+ struct sockaddr_in s_in;
|
|
+ struct sigaction sa;
|
|
+
|
|
+ openlog ("ypserv", LOG_PID, LOG_DAEMON);
|
|
+
|
|
+ while (1)
|
|
+ {
|
|
+ int c;
|
|
+ int option_index = 0;
|
|
+ static struct option long_options[] = {
|
|
+ {"version", no_argument, NULL, 'v'},
|
|
+ {"debug", no_argument, NULL, 'd'},
|
|
+ {"port", required_argument, NULL, 'p'},
|
|
+ {"usage", no_argument, NULL, 'u'},
|
|
+ {"help", no_argument, NULL, 'h'},
|
|
+ {NULL, 0, NULL, '\0'}
|
|
+ };
|
|
+
|
|
+ c = getopt_long (argc, argv, "vdp:buh", long_options, &option_index);
|
|
+ if (c == -1)
|
|
+ break;
|
|
+ switch (c)
|
|
+ {
|
|
+ case 'v':
|
|
+ debug_flag = 1;
|
|
+ log_msg ("ypserv (%s) %s\n", PACKAGE, VERSION);
|
|
+ return 0;
|
|
+ case 'd':
|
|
+ ++debug_flag;
|
|
+ break;
|
|
+ case 'p':
|
|
+ my_port = atoi (optarg);
|
|
+ if (debug_flag)
|
|
+ log_msg ("Using port %d\n", my_port);
|
|
+ break;
|
|
+ case 'u':
|
|
+ case 'h':
|
|
+ Usage (0);
|
|
+ break;
|
|
+ default:
|
|
+ Usage (1);
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ argc -= optind;
|
|
+ argv += optind;
|
|
+
|
|
+ if (debug_flag)
|
|
+ log_msg ("[ypserv (%s) %s]\n", PACKAGE, VERSION);
|
|
+ else
|
|
+ {
|
|
+ int i;
|
|
+
|
|
+ if ((i = fork ()) > 0)
|
|
+ exit (0);
|
|
+
|
|
+ if (i < 0)
|
|
+ {
|
|
+ log_msg ("Cannot fork: %s\n", strerror (errno));
|
|
+ exit (-1);
|
|
+ }
|
|
+
|
|
+ if (setsid () == -1)
|
|
+ {
|
|
+ log_msg ("Cannot setsid: %s\n", strerror (errno));
|
|
+ exit (-1);
|
|
+ }
|
|
+
|
|
+ if ((i = fork ()) > 0)
|
|
+ exit (0);
|
|
+
|
|
+ if (i < 0)
|
|
+ {
|
|
+ log_msg ("Cannot fork: %s\n", strerror (errno));
|
|
+ exit (-1);
|
|
+ }
|
|
+
|
|
+ for (i = 0; i < getdtablesize (); ++i)
|
|
+ close (i);
|
|
+ errno = 0;
|
|
+
|
|
+ umask (0);
|
|
+ i = open ("/dev/null", O_RDWR);
|
|
+ dup (i);
|
|
+ dup (i);
|
|
+ }
|
|
+
|
|
+ if (argc > 0 && debug_flag)
|
|
+ {
|
|
+ path_ypdb = argv[0];
|
|
+ log_msg ("Using database directory: %s\n", path_ypdb);
|
|
+ }
|
|
+
|
|
+ /* Change current directory to database location */
|
|
+ if (chdir (path_ypdb) < 0)
|
|
+ {
|
|
+ log_msg ("ypserv: chdir: %s", strerror (errno));
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ create_pidfile ();
|
|
+
|
|
+ load_securenets ();
|
|
+ load_config ();
|
|
+
|
|
+ /*
|
|
+ * Ignore SIGPIPEs. They can hurt us if someone does a ypcat
|
|
+ * and then hits CTRL-C before it terminates.
|
|
+ */
|
|
+ sigaction (SIGPIPE, NULL, &sa);
|
|
+ sa.sa_handler = SIG_IGN;
|
|
+ sigemptyset (&sa.sa_mask);
|
|
+ sigaction (SIGPIPE, &sa, NULL);
|
|
+ /*
|
|
+ * If program quits, give ports free.
|
|
+ */
|
|
+ sigaction (SIGTERM, NULL, &sa);
|
|
+ sa.sa_handler = sig_quit;
|
|
+ sigemptyset (&sa.sa_mask);
|
|
+ sigaction (SIGTERM, &sa, NULL);
|
|
+
|
|
+ sigaction (SIGINT, NULL, &sa);
|
|
+ sa.sa_handler = sig_quit;
|
|
+ sigemptyset (&sa.sa_mask);
|
|
+ sigaction (SIGINT, &sa, NULL);
|
|
+
|
|
+ /*
|
|
+ * If we get a SIGHUP, reload the securenets and config file.
|
|
+ */
|
|
+ sigaction (SIGHUP, NULL, &sa);
|
|
+ sa.sa_handler = sig_hup;
|
|
+ sigemptyset (&sa.sa_mask);
|
|
+ sigaction (SIGHUP, &sa, NULL);
|
|
+
|
|
+ /*
|
|
+ * On SIGCHLD wait for the child process, so it can give free all
|
|
+ * resources.
|
|
+ */
|
|
+ sigaction (SIGCHLD, NULL, &sa);
|
|
+ sa.sa_handler = sig_child;
|
|
+ sigemptyset (&sa.sa_mask);
|
|
+ sigaction (SIGCHLD, &sa, NULL);
|
|
+
|
|
+ pmap_unset (YPPROG, YPVERS);
|
|
+ pmap_unset (YPPROG, YPOLDVERS);
|
|
+
|
|
+ if (my_port >= 0)
|
|
+ {
|
|
+ my_socket = socket (AF_INET, SOCK_DGRAM, 0);
|
|
+ if (my_socket < 0)
|
|
+ {
|
|
+ log_msg ("can not create UDP: %s", strerror (errno));
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ memset ((char *) &s_in, 0, sizeof (s_in));
|
|
+ s_in.sin_family = AF_INET;
|
|
+ s_in.sin_addr.s_addr = htonl (INADDR_ANY);
|
|
+ s_in.sin_port = htons (my_port);
|
|
+
|
|
+ result = bind (my_socket, (struct sockaddr *) &s_in,
|
|
+ sizeof (s_in));
|
|
+ if (result < 0)
|
|
+ {
|
|
+ log_msg ("ypserv: can not bind UDP: %s ", strerror (errno));
|
|
+ exit (1);
|
|
+ }
|
|
+ }
|
|
+ else
|
|
+ my_socket = RPC_ANYSOCK;
|
|
+
|
|
+ transp = svcudp_create (my_socket);
|
|
+ if (transp == NULL)
|
|
+ {
|
|
+ log_msg ("cannot create udp service.");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ if (!svc_register (transp, YPPROG, YPVERS, ypprog_2, IPPROTO_UDP))
|
|
+ {
|
|
+ log_msg ("unable to register (YPPROG, YPVERS, udp).");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ /* XXX ypprog_2 should be ypprog_1 */
|
|
+ if (!svc_register (transp, YPPROG, YPOLDVERS, ypprog_2, IPPROTO_UDP))
|
|
+ {
|
|
+ log_msg ("unable to register (YPPROG, YPOLDVERS, udp).");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ if (my_port >= 0)
|
|
+ {
|
|
+ my_socket = socket (AF_INET, SOCK_STREAM, 0);
|
|
+ if (my_socket < 0)
|
|
+ {
|
|
+ log_msg ("ypserv: can not create TCP: %s", strerror (errno));
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ memset (&s_in, 0, sizeof (s_in));
|
|
+ s_in.sin_family = AF_INET;
|
|
+ s_in.sin_addr.s_addr = htonl (INADDR_ANY);
|
|
+ s_in.sin_port = htons (my_port);
|
|
+
|
|
+ result = bind (my_socket, (struct sockaddr *) &s_in,
|
|
+ sizeof (s_in));
|
|
+ if (result < 0)
|
|
+ {
|
|
+ log_msg ("ypserv: can not bind TCP ", strerror (errno));
|
|
+ exit (1);
|
|
+ }
|
|
+ }
|
|
+ else
|
|
+ my_socket = RPC_ANYSOCK;
|
|
+
|
|
+ transp = svctcp_create (my_socket, 0, 0);
|
|
+ if (transp == NULL)
|
|
+ {
|
|
+ log_msg ("ypserv: cannot create tcp service\n");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ if (!svc_register (transp, YPPROG, YPVERS, ypprog_2, IPPROTO_TCP))
|
|
+ {
|
|
+ log_msg ("ypserv: unable to register (YPPROG, YPVERS, tcp)\n");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ /* XXX ypprog_2 should be ypprog_1 */
|
|
+ if (!svc_register (transp, YPPROG, YPOLDVERS, ypprog_2, IPPROTO_TCP))
|
|
+ {
|
|
+ log_msg ("ypserv: unable to register (YPPROG, YPOLDVERS, tcp)\n");
|
|
+ exit (1);
|
|
+ }
|
|
+
|
|
+ ypserv_svc_run ();
|
|
+ log_msg ("svc_run returned");
|
|
+ unlink (_YPSERV_PIDFILE);
|
|
+ exit (1);
|
|
+ /* NOTREACHED */
|
|
+}
|