1)Make it possible for rpcbind(8) to bind TCP listening socket to an IP
other than INADDR_ANY. 2) Add the -6 option to specify "IPv6 only". Glanced at by: bms Requested by: bms [2] PR: bin/84494 [1] Approved by: silence from maintainer (~2 weeks) [1] MFC after: 2 weeks
This commit is contained in:
Matteo Riondato
parent
cf75c506db
commit
55987d865b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=168969
@ -2,7 +2,7 @@
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.\" Copyright 1989 AT&T
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.\" Copyright 1991 Sun Microsystems, Inc.
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.\" $FreeBSD$
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.Dd November 29, 2006
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.Dd April 23, 2007
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.Dt RPCBIND 8
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.Os
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.Sh NAME
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@ -10,7 +10,7 @@
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.Nd universal addresses to RPC program number mapper
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.Sh SYNOPSIS
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.Nm
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.Op Fl adiLls
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.Op Fl 6adiLls
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.Op Fl h Ar bindip
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.Sh DESCRIPTION
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The
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@ -68,6 +68,8 @@ The
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utility can only be started by the super-user.
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.Sh OPTIONS
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.Bl -tag -width indent
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.It Fl 6
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Bind to AF_INET6 (IPv6) addresses only.
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.It Fl a
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When debugging
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.Pq Fl d ,
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@ -83,7 +85,7 @@ is also specified.
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With this option, the name-to-address translation consistency
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checks are shown in detail.
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.It Fl h Ar bindip
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Specify specific IP addresses to bind to for UDP requests.
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Specify specific IP addresses to bind to for TCP and UDP requests.
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This option
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may be specified multiple times and is typically necessary when running
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on a multi-homed host.
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@ -92,6 +92,7 @@ int oldstyle_local = 0;
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int verboselog = 0;
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char **hosts = NULL;
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int ipv6_only = 0;
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int nhosts = 0;
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int on = 1;
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int rpcbindlockfd;
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@ -173,8 +174,12 @@ main(int argc, char *argv[])
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init_transport(nconf);
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while ((nconf = getnetconfig(nc_handle))) {
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if (nconf->nc_flag & NC_VISIBLE)
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init_transport(nconf);
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if (nconf->nc_flag & NC_VISIBLE)
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if (ipv6_only == 1 && strcmp(nconf->nc_protofmly,
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"inet") == 0) {
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/* DO NOTHING */
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} else
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init_transport(nconf);
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}
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endnetconfig(nc_handle);
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@ -252,261 +257,196 @@ init_transport(struct netconfig *nconf)
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mode_t oldmask;
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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 (1); /* not my type */
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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 (1); /* not my type */
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#ifdef ND_DEBUG
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if (debugging) {
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int i;
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char **s;
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int i;
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char **s;
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(void) fprintf(stderr, "%s: %ld lookup routines :\n",
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nconf->nc_netid, nconf->nc_nlookups);
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for (i = 0, s = nconf->nc_lookups; i < nconf->nc_nlookups;
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i++, s++)
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fprintf(stderr, "[%d] - %s\n", i, *s);
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(void)fprintf(stderr, "%s: %ld lookup routines :\n",
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nconf->nc_netid, nconf->nc_nlookups);
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for (i = 0, s = nconf->nc_lookups; i < nconf->nc_nlookups;
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i++, s++)
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fprintf(stderr, "[%d] - %s\n", i, *s);
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}
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#endif
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/*
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* XXX - using RPC library internal functions. For NC_TPI_CLTS
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* we call this later, for each socket we like to bind.
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* XXX - using RPC library internal functions.
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*/
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if (nconf->nc_semantics != NC_TPI_CLTS) {
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if ((fd = __rpc_nconf2fd(nconf)) < 0) {
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int non_fatal = 0;
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if (errno == EPROTONOSUPPORT)
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non_fatal = 1;
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syslog(non_fatal?LOG_DEBUG:LOG_ERR, "cannot create socket for %s",
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nconf->nc_netid);
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return (1);
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}
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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 (1);
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syslog(LOG_ERR, "cannot get information for %s",
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nconf->nc_netid);
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return (1);
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}
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if ((strcmp(nconf->nc_netid, "local") == 0) ||
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(strcmp(nconf->nc_netid, "unix") == 0)) {
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memset(&sun, 0, sizeof sun);
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sun.sun_family = AF_LOCAL;
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unlink(_PATH_RPCBINDSOCK);
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strcpy(sun.sun_path, _PATH_RPCBINDSOCK);
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sun.sun_len = SUN_LEN(&sun);
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addrlen = sizeof (struct sockaddr_un);
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sa = (struct sockaddr *)&sun;
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memset(&sun, 0, sizeof sun);
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sun.sun_family = AF_LOCAL;
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unlink(_PATH_RPCBINDSOCK);
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strcpy(sun.sun_path, _PATH_RPCBINDSOCK);
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sun.sun_len = SUN_LEN(&sun);
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addrlen = sizeof (struct sockaddr_un);
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sa = (struct sockaddr *)&sun;
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} else {
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/* Get rpcbind's address on this transport */
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/* Get rpcbind'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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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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if (nconf->nc_semantics == NC_TPI_CLTS) {
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/*
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* If no hosts were specified, just bind to INADDR_ANY.
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* Otherwise make sure 127.0.0.1 is added to the list.
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*/
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nhostsbak = nhosts;
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nhostsbak++;
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hosts = realloc(hosts, nhostsbak * sizeof(char *));
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if (nhostsbak == 1)
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hosts[0] = "*";
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else {
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if (hints.ai_family == AF_INET) {
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hosts[nhostsbak - 1] = "127.0.0.1";
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} else if (hints.ai_family == AF_INET6) {
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hosts[nhostsbak - 1] = "::1";
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} else
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return 1;
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}
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/*
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* Bind to specific IPs if asked to
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*/
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checkbind = 1;
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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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int non_fatal = 0;
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if (errno == EPROTONOSUPPORT &&
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nconf->nc_semantics != NC_TPI_CLTS)
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non_fatal = 1;
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syslog(non_fatal ? LOG_DEBUG : LOG_ERR,
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"cannot create socket for %s", nconf->nc_netid);
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return (1);
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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 adress.
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*/
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if (inet_pton(AF_INET6,
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hosts[nhostsbak], host_addr) == 1)
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continue;
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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 adress.
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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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continue;
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}
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if (setsockopt(fd, IPPROTO_IPV6,
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IPV6_V6ONLY, &on, sizeof on) < 0) {
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syslog(LOG_ERR,
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"can't set v6-only binding for "
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"ipv6 socket: %m");
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continue;
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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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hosts[nhostsbak] = NULL;
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if ((strcmp(nconf->nc_netid, "local") != 0) &&
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(strcmp(nconf->nc_netid, "unix") != 0)) {
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if ((aicode = getaddrinfo(hosts[nhostsbak],
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servname, &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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addrlen = res->ai_addrlen;
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sa = (struct sockaddr *)res->ai_addr;
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}
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oldmask = umask(S_IXUSR|S_IXGRP|S_IXOTH);
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if (bind(fd, sa, addrlen) != 0) {
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syslog(LOG_ERR, "cannot bind %s on %s: %m",
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(hosts[nhostsbak] == NULL) ? "*" :
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hosts[nhostsbak], nconf->nc_netid);
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if (res != NULL)
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freeaddrinfo(res);
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continue;
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} else
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checkbind++;
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(void)umask(oldmask);
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/* Copy the address */
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taddr.addr.len = taddr.addr.maxlen = addrlen;
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taddr.addr.buf = malloc(addrlen);
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if (taddr.addr.buf == NULL) {
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syslog(LOG_ERR,
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"cannot allocate memory for %s address",
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nconf->nc_netid);
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if (res != NULL)
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freeaddrinfo(res);
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return 1;
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}
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memcpy(taddr.addr.buf, sa, addrlen);
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#ifdef ND_DEBUG
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if (debugging) {
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/*
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* If no hosts were specified, just bind to INADDR_ANY. Otherwise
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* make sure 127.0.0.1 is added to the list.
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* for debugging print out our universal
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* address
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*/
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nhostsbak = nhosts;
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nhostsbak++;
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hosts = realloc(hosts, nhostsbak * sizeof(char *));
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if (nhostsbak == 1)
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hosts[0] = "*";
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else {
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if (hints.ai_family == AF_INET) {
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hosts[nhostsbak - 1] = "127.0.0.1";
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} else if (hints.ai_family == AF_INET6) {
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hosts[nhostsbak - 1] = "::1";
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} else
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return 1;
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}
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char *uaddr;
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struct netbuf nb;
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/*
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* Bind to specific IPs if asked to
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*/
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checkbind = 1;
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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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return (1);
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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 adress.
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*/
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if (inet_pton(AF_INET6,
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hosts[nhostsbak], host_addr) == 1)
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continue;
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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 adress.
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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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continue;
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}
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if (setsockopt(fd, IPPROTO_IPV6,
|
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IPV6_V6ONLY, &on, sizeof on) < 0) {
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syslog(LOG_ERR,
|
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"can't set v6-only binding for "
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"udp6 socket: %m");
|
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continue;
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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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/*
|
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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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hosts[nhostsbak] = NULL;
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|
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if ((aicode = getaddrinfo(hosts[nhostsbak],
|
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servname, &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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addrlen = res->ai_addrlen;
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sa = (struct sockaddr *)res->ai_addr;
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oldmask = umask(S_IXUSR|S_IXGRP|S_IXOTH);
|
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if (bind(fd, sa, addrlen) != 0) {
|
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syslog(LOG_ERR, "cannot bind %s on %s: %m",
|
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(hosts[nhostsbak] == NULL) ? "*" :
|
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hosts[nhostsbak], nconf->nc_netid);
|
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if (res != NULL)
|
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freeaddrinfo(res);
|
||||
continue;
|
||||
} else
|
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checkbind++;
|
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(void) umask(oldmask);
|
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|
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/* Copy the address */
|
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taddr.addr.len = taddr.addr.maxlen = addrlen;
|
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taddr.addr.buf = malloc(addrlen);
|
||||
if (taddr.addr.buf == NULL) {
|
||||
syslog(LOG_ERR,
|
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"cannot allocate memory for %s address",
|
||||
nconf->nc_netid);
|
||||
if (res != NULL)
|
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freeaddrinfo(res);
|
||||
return 1;
|
||||
}
|
||||
memcpy(taddr.addr.buf, sa, addrlen);
|
||||
#ifdef ND_DEBUG
|
||||
if (debugging) {
|
||||
/*
|
||||
* for debugging print out our universal
|
||||
* address
|
||||
*/
|
||||
char *uaddr;
|
||||
struct netbuf nb;
|
||||
|
||||
nb.buf = sa;
|
||||
nb.len = nb.maxlen = sa->sa_len;
|
||||
uaddr = taddr2uaddr(nconf, &nb);
|
||||
(void) fprintf(stderr,
|
||||
"rpcbind : my address is %s\n", uaddr);
|
||||
(void) free(uaddr);
|
||||
}
|
||||
nb.buf = sa;
|
||||
nb.len = nb.maxlen = sa->sa_len;
|
||||
uaddr = taddr2uaddr(nconf, &nb);
|
||||
(void)fprintf(stderr,
|
||||
"rpcbind : my address is %s\n", uaddr);
|
||||
(void)free(uaddr);
|
||||
}
|
||||
#endif
|
||||
|
||||
if (nconf->nc_semantics != NC_TPI_CLTS)
|
||||
listen(fd, SOMAXCONN);
|
||||
if (nconf->nc_semantics != NC_TPI_CLTS)
|
||||
listen(fd, SOMAXCONN);
|
||||
|
||||
my_xprt = (SVCXPRT *)svc_tli_create(fd, nconf, &taddr,
|
||||
RPC_MAXDATASIZE, RPC_MAXDATASIZE);
|
||||
if (my_xprt == (SVCXPRT *)NULL) {
|
||||
syslog(LOG_ERR, "%s: could not create service",
|
||||
nconf->nc_netid);
|
||||
goto error;
|
||||
}
|
||||
}
|
||||
if (!checkbind)
|
||||
return 1;
|
||||
} else {
|
||||
if ((strcmp(nconf->nc_netid, "local") != 0) &&
|
||||
(strcmp(nconf->nc_netid, "unix") != 0)) {
|
||||
if ((aicode = getaddrinfo(NULL, servname, &hints, &res))
|
||||
!= 0) {
|
||||
syslog(LOG_ERR,
|
||||
"cannot get local address for %s: %s",
|
||||
nconf->nc_netid, gai_strerror(aicode));
|
||||
return 1;
|
||||
}
|
||||
addrlen = res->ai_addrlen;
|
||||
sa = (struct sockaddr *)res->ai_addr;
|
||||
}
|
||||
oldmask = umask(S_IXUSR|S_IXGRP|S_IXOTH);
|
||||
if (bind(fd, sa, addrlen) < 0) {
|
||||
syslog(LOG_ERR, "cannot bind %s: %m", nconf->nc_netid);
|
||||
if (res != NULL)
|
||||
freeaddrinfo(res);
|
||||
return 1;
|
||||
}
|
||||
(void) umask(oldmask);
|
||||
|
||||
/* Copy the address */
|
||||
taddr.addr.len = taddr.addr.maxlen = addrlen;
|
||||
taddr.addr.buf = malloc(addrlen);
|
||||
if (taddr.addr.buf == NULL) {
|
||||
syslog(LOG_ERR, "cannot allocate memory for %s address",
|
||||
nconf->nc_netid);
|
||||
if (res != NULL)
|
||||
freeaddrinfo(res);
|
||||
return 1;
|
||||
}
|
||||
memcpy(taddr.addr.buf, sa, addrlen);
|
||||
#ifdef ND_DEBUG
|
||||
if (debugging) {
|
||||
/* for debugging print out our universal address */
|
||||
char *uaddr;
|
||||
struct netbuf nb;
|
||||
|
||||
nb.buf = sa;
|
||||
nb.len = nb.maxlen = sa->sa_len;
|
||||
uaddr = taddr2uaddr(nconf, &nb);
|
||||
(void) fprintf(stderr, "rpcbind : my address is %s\n",
|
||||
uaddr);
|
||||
(void) free(uaddr);
|
||||
}
|
||||
#endif
|
||||
|
||||
if (nconf->nc_semantics != NC_TPI_CLTS)
|
||||
listen(fd, SOMAXCONN);
|
||||
|
||||
my_xprt = (SVCXPRT *)svc_tli_create(fd, nconf, &taddr, RPC_MAXDATASIZE, RPC_MAXDATASIZE);
|
||||
if (my_xprt == (SVCXPRT *)NULL) {
|
||||
syslog(LOG_ERR, "%s: could not create service",
|
||||
nconf->nc_netid);
|
||||
goto error;
|
||||
}
|
||||
my_xprt = (SVCXPRT *)svc_tli_create(fd, nconf, &taddr,
|
||||
RPC_MAXDATASIZE, RPC_MAXDATASIZE);
|
||||
if (my_xprt == (SVCXPRT *)NULL) {
|
||||
syslog(LOG_ERR, "%s: could not create service",
|
||||
nconf->nc_netid);
|
||||
goto error;
|
||||
}
|
||||
}
|
||||
if (!checkbind)
|
||||
return 1;
|
||||
|
||||
#ifdef PORTMAP
|
||||
/*
|
||||
@ -704,8 +644,11 @@ parseargs(int argc, char *argv[])
|
||||
#else
|
||||
#define WSOP ""
|
||||
#endif
|
||||
while ((c = getopt(argc, argv, "adh:iLls" WSOP)) != -1) {
|
||||
while ((c = getopt(argc, argv, "6adh:iLls" WSOP)) != -1) {
|
||||
switch (c) {
|
||||
case '6':
|
||||
ipv6_only = 1;
|
||||
break;
|
||||
case 'a':
|
||||
doabort = 1; /* when debugging, do an abort on */
|
||||
break; /* errors; for rpcbind developers */
|
||||
@ -741,7 +684,7 @@ parseargs(int argc, char *argv[])
|
||||
#endif
|
||||
default: /* error */
|
||||
fprintf(stderr,
|
||||
"usage: rpcbind [-adiLls%s] [-h bindip]\n",
|
||||
"usage: rpcbind [-6adiLls%s] [-h bindip]\n",
|
||||
WSOP);
|
||||
exit (1);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user