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https://github.com/freebsd/freebsd-src
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Add the -h <bindip> option to rpc.statd, similar to the one in nfsd(8)
and in mountd(8) -h bindip Specify specific IP addresses to bind to for TCP and UDP requests. This option may be specified multiple times. If no -h option is specified, rpc.statd will bind to INADDR_ANY. Note that when specifying IP addresses with -h, rpc.statd will automatically add 127.0.0.1 and if IPv6 is enabled, ::1 to the list. (coming for rpc.lockd too) PR: bin/98500 MFC after: 1 week
This commit is contained in:
parent
990847f475
commit
3c2ff3b0a5
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=173263
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@ -33,7 +33,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd April 3, 2007
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.Dd November 1, 2007
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.Dt RPC.STATD 8
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.Os
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.Sh NAME
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@ -42,6 +42,7 @@
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.Sh SYNOPSIS
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.Nm
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.Op Fl d
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.Op Fl h Ar bindip
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.Op Fl p Ar port
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.Sh DESCRIPTION
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The
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@ -74,6 +75,23 @@ These messages are logged with level
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LOG_DEBUG and facility LOG_DAEMON.
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Error conditions are logged irrespective
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of this option, using level LOG_ERR.
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.It Fl h Ar bindip
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Specify specific IP addresses to bind to.
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This option may be specified multiple times.
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If no
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.Fl h
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option is specified,
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.Nm
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will bind to
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.Dv INADDR_ANY .
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Note that when specifying IP addresses with
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.Fl h ,
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.Nm
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will automatically add
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.Li 127.0.0.1
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and if IPv6 is enabled,
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.Li ::1
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to the list.
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.It Fl p
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The
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.Fl p
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@ -46,42 +46,73 @@ __FBSDID("$FreeBSD$");
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#include <string.h>
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#include <syslog.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/wait.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <signal.h>
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#include <unistd.h>
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#include "statd.h"
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int debug = 0; /* Controls syslog() calls for debug messages */
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static void handle_sigchld(int sig);
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static void usage(void);
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char **hosts, *svcport_str = NULL;
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int nhosts = 0;
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int xcreated = 0;
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const char *transports[] = { "udp", "tcp", "udp6", "tcp6" };
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void create_service(struct netconfig *nconf);
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static void handle_sigchld(int sig);
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void out_of_mem(void);
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static void usage(void);
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int
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main(int argc, char **argv)
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{
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SVCXPRT *transp;
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struct sigaction sa;
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struct netconfig *nconf;
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struct sockaddr_in sin;
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struct sockaddr_in6 sin6;
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int ch, i, maxindex, r, s, sock;
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char *endptr;
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void *nc_handle;
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in_port_t svcport;
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int ch, i, s;
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char *endptr, **hosts_bak;
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int have_v6 = 1;
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int maxrec = RPC_MAXDATASIZE;
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in_port_t svcport = 0;
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while ((ch = getopt(argc, argv, "dp:")) != -1)
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while ((ch = getopt(argc, argv, "dh:p:")) != -1)
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switch (ch) {
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case 'd':
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debug = 1;
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break;
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case 'h':
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++nhosts;
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hosts_bak = hosts;
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hosts_bak = realloc(hosts, nhosts * sizeof(char *));
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if (hosts_bak == NULL) {
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if (hosts != NULL) {
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for (i = 0; i < nhosts; i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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}
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}
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hosts = hosts_bak;
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hosts[nhosts - 1] = strdup(optarg);
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if (hosts[nhosts - 1] == NULL) {
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for (i = 0; i < (nhosts - 1); i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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}
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break;
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case 'p':
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endptr = NULL;
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svcport = (in_port_t)strtoul(optarg, &endptr, 10);
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if (endptr == NULL || *endptr != '\0' || svcport == 0 ||
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svcport >= IPPORT_MAX)
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usage();
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svcport_str = strdup(optarg);
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break;
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default:
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usage();
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*/
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s = socket(AF_INET6, SOCK_DGRAM, IPPROTO_UDP);
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if (s < 0)
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maxindex = 2;
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else {
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have_v6 = 0;
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else
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close(s);
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maxindex = 4;
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}
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if (svcport != 0) {
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bzero(&sin, sizeof(struct sockaddr_in));
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sin.sin_len = sizeof(struct sockaddr_in);
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sin.sin_family = AF_INET;
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sin.sin_port = htons(svcport);
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bzero(&sin6, sizeof(struct sockaddr_in6));
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sin6.sin6_len = sizeof(struct sockaddr_in6);
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sin6.sin6_family = AF_INET6;
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sin6.sin6_port = htons(svcport);
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}
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rpc_control(RPC_SVC_CONNMAXREC_SET, &maxrec);
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for (i = 0; i < maxindex; i++) {
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nconf = getnetconfigent(transports[i]);
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if (nconf == NULL)
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errx(1, "cannot get %s netconf: %s.", transports[i],
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nc_sperror());
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/*
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* If no hosts were specified, add a wildcard entry to bind to
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* INADDR_ANY. Otherwise make sure 127.0.0.1 and ::1 are added to the
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* list.
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*/
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if (nhosts == 0) {
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hosts = malloc(sizeof(char**));
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if (hosts == NULL)
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out_of_mem();
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if (svcport != 0) {
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if (strcmp(nconf->nc_netid, "udp6") == 0) {
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sock = socket(AF_INET6, SOCK_DGRAM,
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IPPROTO_UDP);
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if (sock != -1) {
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r = bindresvport_sa(sock,
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(struct sockaddr *)&sin6);
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if (r != 0) {
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syslog(LOG_ERR, "bindresvport: %m");
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exit(1);
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hosts[0] = "*";
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nhosts = 1;
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} else {
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hosts_bak = hosts;
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if (have_v6) {
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hosts_bak = realloc(hosts, (nhosts + 2) *
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sizeof(char *));
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if (hosts_bak == NULL) {
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for (i = 0; i < nhosts; i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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} else
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hosts = hosts_bak;
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nhosts += 2;
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hosts[nhosts - 2] = "::1";
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} else {
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hosts_bak = realloc(hosts, (nhosts + 1) * sizeof(char *));
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if (hosts_bak == NULL) {
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for (i = 0; i < nhosts; i++)
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free(hosts[i]);
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free(hosts);
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out_of_mem();
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} else {
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nhosts += 1;
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hosts = hosts_bak;
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}
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}
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} else if (strcmp(nconf->nc_netid, "udp") == 0) {
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sock = socket(AF_INET, SOCK_DGRAM,
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IPPROTO_UDP);
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if (sock != -1) {
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r = bindresvport(sock, &sin);
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if (r != 0) {
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syslog(LOG_ERR, "bindresvport: %m");
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exit(1);
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}
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}
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} else if (strcmp(nconf->nc_netid, "tcp6") == 0) {
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sock = socket(AF_INET6, SOCK_STREAM,
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IPPROTO_TCP);
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if (sock != -1) {
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r = bindresvport_sa(sock,
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(struct sockaddr *)&sin6);
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if (r != 0) {
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syslog(LOG_ERR, "bindresvport: %m");
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exit(1);
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}
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}
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} else if (strcmp(nconf->nc_netid, "tcp") == 0) {
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sock = socket(AF_INET, SOCK_STREAM,
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IPPROTO_TCP);
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if (sock != -1) {
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r = bindresvport(sock, &sin);
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if (r != 0) {
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syslog(LOG_ERR, "bindresvport: %m");
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exit(1);
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}
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}
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}
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transp = svc_tli_create(sock, nconf, NULL,
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RPC_MAXDATASIZE, RPC_MAXDATASIZE);
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} else {
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transp = svc_tli_create(RPC_ANYFD, nconf, NULL,
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RPC_MAXDATASIZE, RPC_MAXDATASIZE);
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}
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if (transp == NULL) {
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errx(1, "cannot create %s service.", transports[i]);
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/* NOTREACHED */
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}
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if (!svc_reg(transp, SM_PROG, SM_VERS, sm_prog_1, nconf)) {
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errx(1, "unable to register (SM_PROG, NLM_SM, %s)",
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transports[i]);
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/* NOTREACHED */
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}
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freenetconfigent(nconf);
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hosts[nhosts - 1] = "127.0.0.1";
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}
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nc_handle = setnetconfig();
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while ((nconf = getnetconfig(nc_handle))) {
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/* We want to listen only on udp6, tcp6, udp, tcp transports */
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if (nconf->nc_flag & NC_VISIBLE) {
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/* Skip if there's no IPv6 support */
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if (have_v6 == 0 && strcmp(nconf->nc_protofmly, "inet6") == 0) {
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/* DO NOTHING */
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} else {
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create_service(nconf);
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}
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}
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}
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endnetconfig(nc_handle);
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init_file("/var/db/statd.status");
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/* Note that it is NOT sensible to run this program from inetd - the */
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exit(1);
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}
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/*
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* This routine creates and binds sockets on the appropriate
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* addresses. It gets called one time for each transport and
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* registrates the service with rpcbind on that trasport.
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*/
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void
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create_service(struct netconfig *nconf)
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{
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struct addrinfo hints, *res = NULL;
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struct sockaddr_in *sin;
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struct sockaddr_in6 *sin6;
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struct __rpc_sockinfo si;
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struct netbuf servaddr;
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SVCXPRT *transp = NULL;
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int aicode;
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int fd;
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int nhostsbak;
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int r;
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int registered = 0;
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u_int32_t host_addr[4]; /* IPv4 or IPv6 */
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if ((nconf->nc_semantics != NC_TPI_CLTS) &&
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(nconf->nc_semantics != NC_TPI_COTS) &&
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(nconf->nc_semantics != NC_TPI_COTS_ORD))
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return; /* not my type */
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/*
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* XXX - using RPC library internal functions.
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*/
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if (!__rpc_nconf2sockinfo(nconf, &si)) {
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syslog(LOG_ERR, "cannot get information for %s",
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nconf->nc_netid);
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return;
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}
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/* Get rpc.statd's address on this transport */
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memset(&hints, 0, sizeof hints);
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hints.ai_flags = AI_PASSIVE;
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hints.ai_family = si.si_af;
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hints.ai_socktype = si.si_socktype;
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hints.ai_protocol = si.si_proto;
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/*
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* Bind to specific IPs if asked to
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*/
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nhostsbak = nhosts;
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while (nhostsbak > 0) {
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--nhostsbak;
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/*
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* XXX - using RPC library internal functions.
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*/
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if ((fd = __rpc_nconf2fd(nconf)) < 0) {
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syslog(LOG_ERR, "cannot create socket for %s",
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nconf->nc_netid);
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continue;
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}
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switch (hints.ai_family) {
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case AF_INET:
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if (inet_pton(AF_INET, hosts[nhostsbak],
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host_addr) == 1) {
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hints.ai_flags &= AI_NUMERICHOST;
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} else {
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/*
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* Skip if we have an AF_INET6 address.
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*/
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if (inet_pton(AF_INET6, hosts[nhostsbak],
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host_addr) == 1) {
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close(fd);
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continue;
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}
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}
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break;
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case AF_INET6:
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if (inet_pton(AF_INET6, hosts[nhostsbak],
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host_addr) == 1) {
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hints.ai_flags &= AI_NUMERICHOST;
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} else {
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/*
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* Skip if we have an AF_INET address.
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*/
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if (inet_pton(AF_INET, hosts[nhostsbak],
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host_addr) == 1) {
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close(fd);
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continue;
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}
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}
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break;
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default:
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break;
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}
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/*
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* If no hosts were specified, just bind to INADDR_ANY
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*/
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if (strcmp("*", hosts[nhostsbak]) == 0) {
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if (svcport_str == NULL) {
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res = malloc(sizeof(struct addrinfo));
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if (res == NULL)
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out_of_mem();
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res->ai_flags = hints.ai_flags;
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res->ai_family = hints.ai_family;
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res->ai_protocol = hints.ai_protocol;
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switch (res->ai_family) {
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case AF_INET:
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sin = malloc(sizeof(struct sockaddr_in));
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if (sin == NULL)
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out_of_mem();
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sin->sin_family = AF_INET;
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sin->sin_port = htons(0);
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sin->sin_addr.s_addr = htonl(INADDR_ANY);
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res->ai_addr = (struct sockaddr*) sin;
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res->ai_addrlen = (socklen_t)
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sizeof(res->ai_addr);
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break;
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case AF_INET6:
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sin6 = malloc(sizeof(struct sockaddr_in6));
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if (res->ai_addr == NULL)
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out_of_mem();
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sin6->sin6_family = AF_INET6;
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sin6->sin6_port = htons(0);
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sin6->sin6_addr = in6addr_any;
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res->ai_addr = (struct sockaddr*) sin6;
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res->ai_addrlen = (socklen_t) sizeof(res->ai_addr);
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break;
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default:
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break;
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}
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} else {
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if ((aicode = getaddrinfo(NULL, svcport_str,
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&hints, &res)) != 0) {
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syslog(LOG_ERR,
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"cannot get local address for %s: %s",
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nconf->nc_netid,
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gai_strerror(aicode));
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continue;
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}
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}
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} else {
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if ((aicode = getaddrinfo(hosts[nhostsbak], svcport_str,
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&hints, &res)) != 0) {
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syslog(LOG_ERR,
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"cannot get local address for %s: %s",
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nconf->nc_netid, gai_strerror(aicode));
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continue;
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}
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}
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r = bindresvport_sa(fd, res->ai_addr);
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if (r != 0) {
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syslog(LOG_ERR, "bindresvport_sa: %m");
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exit(1);
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}
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transp = svc_tli_create(fd, nconf, NULL,
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RPC_MAXDATASIZE, RPC_MAXDATASIZE);
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if (transp != (SVCXPRT *) NULL) {
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if (!svc_register(transp, SM_PROG, SM_VERS,
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sm_prog_1, 0)) {
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syslog(LOG_ERR, "can't register on %s",
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nconf->nc_netid);
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} else {
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if (!svc_reg(transp, SM_PROG, SM_VERS,
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sm_prog_1, NULL))
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syslog(LOG_ERR,
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"can't register %s SM_PROG service",
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nconf->nc_netid);
|
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}
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} else
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syslog(LOG_WARNING, "can't create %s services",
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nconf->nc_netid);
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if (registered == 0) {
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registered = 1;
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memset(&hints, 0, sizeof hints);
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hints.ai_flags = AI_PASSIVE;
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hints.ai_family = si.si_af;
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hints.ai_socktype = si.si_socktype;
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hints.ai_protocol = si.si_proto;
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if (svcport_str == NULL) {
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svcport_str = malloc(NI_MAXSERV * sizeof(char));
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if (svcport_str == NULL)
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out_of_mem();
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if (getnameinfo(res->ai_addr,
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res->ai_addr->sa_len, NULL, NI_MAXHOST,
|
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svcport_str, NI_MAXSERV * sizeof(char),
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NI_NUMERICHOST | NI_NUMERICSERV))
|
||||
errx(1, "Cannot get port number");
|
||||
}
|
||||
|
||||
if((aicode = getaddrinfo(NULL, svcport_str, &hints,
|
||||
&res)) != 0) {
|
||||
syslog(LOG_ERR, "cannot get local address: %s",
|
||||
gai_strerror(aicode));
|
||||
exit(1);
|
||||
}
|
||||
|
||||
servaddr.buf = malloc(res->ai_addrlen);
|
||||
memcpy(servaddr.buf, res->ai_addr, res->ai_addrlen);
|
||||
servaddr.len = res->ai_addrlen;
|
||||
|
||||
rpcb_set(SM_PROG, SM_VERS, nconf, &servaddr);
|
||||
|
||||
xcreated++;
|
||||
freeaddrinfo(res);
|
||||
}
|
||||
} /* end while */
|
||||
}
|
||||
|
||||
static void
|
||||
usage()
|
||||
{
|
||||
fprintf(stderr, "usage: rpc.statd [-d] [-p <port>]\n");
|
||||
fprintf(stderr, "usage: rpc.statd [-d] [-h <bindip>] [-p <port>]\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
|
@ -240,3 +456,13 @@ static void handle_sigchld(int sig __unused)
|
|||
WEXITSTATUS(status));
|
||||
}
|
||||
|
||||
/*
|
||||
* Out of memory, fatal
|
||||
*/
|
||||
void
|
||||
out_of_mem()
|
||||
{
|
||||
|
||||
syslog(LOG_ERR, "out of memory");
|
||||
exit(2);
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue